CN2700882Y - High-pressure sealing ring flow type crude oil waxing stimulation device - Google Patents
High-pressure sealing ring flow type crude oil waxing stimulation device Download PDFInfo
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- CN2700882Y CN2700882Y CN 200420049629 CN200420049629U CN2700882Y CN 2700882 Y CN2700882 Y CN 2700882Y CN 200420049629 CN200420049629 CN 200420049629 CN 200420049629 U CN200420049629 U CN 200420049629U CN 2700882 Y CN2700882 Y CN 2700882Y
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Abstract
The utility model relates to a high-pressure sealing ring flow type crude oil waxing stimulation device for simulating the waxing of the conduit of long-transfusion crude oil, comprising a sealing kettle 26 provided with an oil inlet 15 and an oil outlet 27, an electric stirrer 23 inserted in the kettle 26, a temperature control system, and a detection system. The temperature control system is provided with an internal heater fixed to the stirrer 23 and inserted in the kettle 26, a jacket 4 coated at the outside of an inner container 6, an insulating layer 3, and an outer shell 2. The detection system is provided with a pressure gauge 10 put in the kettle 26 from a kettle lid 7, a plurality of temperature sensors 21-2 in the kettle 26, the slideway 14 of the temperature sensors, and the sleeve tubes 20 of a plurality of temperature sensors. The sleeve tubes 20 of a plurality of temperature sensors pass through the outer shell 2, the insulating layer 3, and the jacket 4 and affix to the external wall of the inner container 6. The simulator has the advantages of cabinet structure, few land occupation, few apparatuses, the big experimental space of oil samples, true simulation process, accurate experimental data, and less experimental expenses; the shear strength of equivalent weight which the oil samples are subjected on trial is equivalent to the shear strength of the equivalent weight which oil flows in the conduit are subjected on site; the conditions of the geometry and dynamics of the simulation trial approaches to the practical situation on site.
Description
Technical field
The utility model is the high pressure sealing circulation type wax deposition analogue means that is used for the simulation of crude oil long-distance transmission pipeline wax deposition.Relate to the piping system technical field.
Background technology
Wax deposition in the crude oil long-distance transmission pipeline has a strong impact on the safety and economic operation of pipeline, and the wax deposition situation of grasping in the pipeline has great importance for the pipeline network operator.The oil transportation scene mainly is to ask average wax deposition thickness between the station by pressure drop inverse between the station at present, and owing to the pipeline operational factor often is in the fluctuation, thereby the wax deposition data accuracy that obtains in this way is not high, and can't reflect that real wax deposition distributes in the pipeline.Another kind method is to utilize indoor simulation device to predict that by simulation test the wax deposition in the pipeline distributes, this method obtains test figure by simulated field condition, obtaining in the on-the-spot pipeline wax deposition after test data analyzer handled along pipe range and rule over time, is the main method of predicting the interior wax deposition of pipeline at present.The analogue means that adopts is commonly the circuit device, utilizes small-sized screw pump or gear-type pump as circulation power.Though this class device is similar with on-the-spot pipeline on the type of flow, but owing to be subjected to the restriction of temperature control ability and oil sample, general caliber is all done very for a short time, internal diameter is greatly about about 10～12mm, cause the oil sample running space littler dozens or even hundreds of times like this, and the wall shear stress that oil sample is subjected to will be greatly tens times than on-the-spot.Secondly, because the circuit limited length, so the oil sample number of times that stands pump-shear effect therein is than scene much more (between an on-the-spot station only once).Pump-shear effect intensity is very big, influences wax crystalline form attitude, thereby also has influence on oil sample and cross the wax deposition in pipeline behind the pump.All these influences the accuracy of circuit simulation, must carry out a large amount of physics to the processing of test figure with on amplifying and mathematics manipulation is proofreaied and correct, thereby utilize circuit simulation wax deposition process loaded down with trivial details, has shortcoming.
The utility model content
The equivalent shear resistance that oily stream is subjected in the equivalent shear resistance that the purpose of this utility model is that a kind of oil sample test space of design is big, oil sample is subjected in the test and the on-the-spot pipeline is suitable, the geometry of simulation test and the mechanical condition scene of more approaching truly, high pressure sealing circulation type crude oil wax analogue means accurately.
In view of the deficiency that present circuit wax deposition analogue means exists, the utility model proposes a kind of device that under still inner high voltage, airtight and temperature controlled condition, makes crude oil form circulation and carry out the wax deposition simulation, the structure of this device is as shown in Figure 1 and Figure 2.It comprises that one has the seal pot 26 of oil-in 15, oil-out 27, electric mixer 23, temperature control system and the detection system in the insertion still 26.Airtight still 26 is that jar shape inner bag 6 places suitable for reading connect an oval kettle cover 7 by kettle cover flange 17, motor 13 through shaft coupling 14 connect stirrers 23 and from kettle cover 7 center of top by outer insertion still 26 in; Temperature control system comprises being connected with stirrer 23 to be inserted the internal heater in the still 26 in the lump and is wrapped in inner bag 6 outer chuck 4, heat-insulation layer 3 and shell 2; Detection system comprise from kettle cover 7 feed the tensimeter 10 in the stills 26, the temperature sensor 21-2 that surveys the oil temperature, temperature sensor slideway 14 and from outside pass heat-insulation layer 3, chuck 4 be affixed on a plurality of temperature sensor sleeve pipes 20 of inner bag 6 outer walls, a plurality of temperature sensor 21-1 and with the supporting logging of all temperature sensors.Still 26 in this device covers 7 usefulness flanges 17 and connects sealing, certainly be good seal, can also between flange 17, add O-ring seal, and oil-in has operation valve 16 for 15 times, oil-out 27 and nitrogen are gone into still mouth 8, nitrogen goes out the control that still mouth 9 also has valve, stirrer 23 is worn kettle cover 7 places and is also wanted encapsulation process, so still 26 can reach the environmental baseline of sealing.Also adopt the measure of inflated with nitrogen in the still 26, make the oil stream secluding air of simulation, this electrical heating, electrical testing that also can be in the still provides safer condition certainly.Still internal heater in the temperature control system is to be fixed on the anchor frame anchor formula circulation maker 25 of 23 outer perpendicular sleeve pipes of stirrer at the lower end bifurcated, on frame, be wound with electric-heating belt (line) 18, perpendicular sleeve pipe upper end two annulus that are connected have on it that each links to each other with electric-heating belt (line) 18 two ends with two parallel annular electrical contact slideways 11 of annulus insulation.Again by be fixed on the annulus insert electrode 29 in two arc-spark stands and by extension spring 28 with electrode 29 and 11 sliding contacts of electrical contact slideway.Chuck 4 profiles outside the still 26 are similar to inner bag, be enclosed within inner bag 6 outer backs and around inner bag 6 and in the cover between the chuck 4, coil spiral deflector 5 from top to bottom, and connect with the weldering of inner bag 6 outer walls and chuck 4 inwalls, be connected in chuck 4 bottoms and stretch out a heat eliminating medium and go into running-on 1, be connected in chuck 4 tops one side and stretch out a heat eliminating medium and go out running-on 19; The heat-insulation layer 3 of same bag one similar figures outside chuck 4, the outsourcing steel casing 2 again, fill insulant material in the heat-insulation layer 3.Such temperature control system both can evenly be warmed to required temperature with the test crude oil in the still 26, and still 26 outer walls have chuck 4 to pass to heat eliminating medium simulated environment temperature again and with heat-insulation layer 3 maintenances, realized two kinds of temperature controlling simultaneously.The flow speed control of crude oil is finished by electric mixer 23 in the still 26.The paddle 24 that is installed in stirrer 23 lower ends is anchor formula or closed-in construction.This kind paddle 24 can produce simple circulation, is equipped with the rotation of anchor formula circulation maker 25 in the still again, also is the circulation power-assisted.Still 26 interior crude oil circularize mobile under the drive of electric mixer 23, are equal to crude oil and flow at the pipeline of endless.The rotating speed of regulating motor 13 can be adjusted the speed and the intensity of circulation easily, simulates the flow state of crude oil in pipeline under various flow velocitys and the pressure.
The test macro of this analogue means has test two parts of pressure and temperature.Pressure test is realized by the tensimeter 10 that is installed on the kettle cover 7.It is complicated that the test of temperature is then wanted.Should measure the thermograde of still 26 walls, measure in the still 26 thermograde of 26 inwalls from the center to the still again.The thermograde of surveying still 26 walls is realized by layout temperature sensor 21-1 in a plurality of temperature sensor sleeve pipes 20 of still 26 outer walls.The thermograde of surveying in the still 26 then becomes a plurality of temperature sensor 21-2 in 90 ° of tubulose temperature sensor framves that are connected 22 to realize by being installed in anchor formula circulation maker 25 frames with 23 in stirrer.Because stirrer 23, temperature sensor frame 22 and still 26 internal heaters are in rotary state when working always, temperature sensor 21-2 lead-in wire must pass through temperature sensor slideway 14 from temperature sensor frame 22 and perpendicular sleeve pipe and pick out, so lead-in wire can not be many, otherwise temperature sensor slideway 14 will be too many, and it is very complicated that structure can become.Therefore will be harsh in the selection of instrument and circuit, the most satisfactory is exactly to select one-wire bus instrument and related circuit for use.Sensor can be selected a line digital temperature sensor for use, as DS1820, DS18S20, DS18B20, DS1822 etc., is equipped with the unibus temperature polling instrument again, as DZT-512 unibus temperature polling instrument.These type of sensors all are installed in temperature sensor frame 22, in general 10 just passable, temperature sensor 21-2 is as long as two extension lines are just passable, temperature sensor slideway 14 also has only 2 certainly, on structure treatment just much more simply.Identical with the electrical contact slideway 11 of still 26 internal heater extension lines, promptly above electrical contact slideway 11 annulus, fix two annulus again, two parallel annular temperature sensor slideways 14 with annulus insulation are also arranged on it, also by insert electrode 29 in two arc-spark stands that are fixed on the annulus and by extension spring 28 with electrode 29 and 14 sliding contacts of temperature sensor slideway.The connection of temperature sensor 21-2 and unibus temperature polling instrument is seen product description.In fact, a plurality of temperature sensor 21-1 of still 26 outer walls insertion temperature sensor sleeve pipe 20 also adopt a line digital temperature sensor of same model, can a shared unibus temperature polling instrument be patrolled and examined by still 26 inside and outside temperature sensor measured temperatures fully.
Embodiment
Embodiment: with still 26 internal diameter 400mm, high 200mm is an example, and its concrete structure as shown in Figure 1 and Figure 2.Major equipment and being of a size of: the high 150mm of inner bag, thick 10mm, kettle cover 7 high 50mm, chuck 4 wide 50mm, spiral deflector 5 coil 5 circles in chuck 4, heat-insulation layer 3 wide 50mm, and shell 2 wall thickness 5mm fill asbestos in the heat-insulation layer 3.Motor 13 is selected 1KW's for use, 23 steel pipes of stirrer with φ 20mm * 2, long 200mm, the outer tube of the outer perpendicular sleeve pipe of axle selects φ 30 * 5mm steel pipe, long 100mm, anchor formula circulation maker 25 wide 300mm, high 120mm, select for use φ 10 * 2mm steel pipe curve the anchor shape and with the welding of perpendicular sleeve pipe, electric-heating belt (line) 18 passes perpendicular Socket welding on slideway 11 after twining on the anchor formula circulation maker 25.The steel annulus of four φ 100mm of parallel weldering outside the still 26 of perpendicular sleeve pipe upper end, the copper ring slideway that after the annulus inboard adds insulation, respectively is connected, the arc-spark stand that on the steel annulus, respectively is connected, interpolation graphite electrode 29 is pressed to slideway by extension spring 28 with electrode 29.Paddle 24 is selected anchor formula oar for use, and the temperature sensor frame 22 that is connected on shaft is selected the steel pipe of φ 20 * 2mm for use, long 140mm, and mounting temperature sensor 21-2 is totally 6 in it, promptly every one of 20mm cloth.Temperature sensor 21-1 in temperature sensor 21-2 and the temperature sensor sleeve pipe 20 all selects DS1820 one line digital temperature sensor for use, is equipped with DZT-512 unibus temperature polling instrument and makes temperature indication usefulness.This high pressure sealing circulation type crude oil wax analogue means is compared with the circular track test device through probationary certificate, and experiment effect is good, can satisfy requirement of experiment fully.
The utility model is in an airtight still 26 that fills nitrogen, make oil sample form circulation, Simulation of Crude Oil long distance in pipeline flows, warm by the oil of still 26 internal heaters heating oil sample simulation pipeline transportation simultaneously, by the environment temperature of heat eliminating medium simulation pipeline, this has just simulated the actual conditions of long distance pipeline in a slight still 26 in chuck 4.Disposed the detection of necessary pressure detection and temperature detection, particularly temperature in device again, existing still 26 wall temperature multiple spots detect, and the detection of oil stream thermograde in the still 26 is arranged again.Can running parameters such as working pressure, oil temperature, pipe surface temperature be set in strict accordance with pre-provisioning request fully, can detect the wax deposition situation of crude oil under the various conditions of work simultaneously.
As known from the above, this analogue means is small and exquisite, take up an area of few, device therefor is few, compares with the circuit analogue means that but lab space is big, and the equivalent shear resistance that oily stream is subjected in equivalent shear resistance that oil sample is subjected in the test and the on-the-spot pipeline is suitable, the geometry of simulation test and mechanical condition more approach on-site actual situations, simulate trulyr, experimental data is accurate, and experimental expenses is few.
Description of drawings
Fig. 1 high pressure sealing circulation type crude oil wax analogue means overall pattern
Fig. 2 circulation maker and heating system figure
1---heat eliminating medium is gone into running-on 2---shell wherein
3---heat-insulation layer 4---chuck
5---spiral deflector 6---inner bag
Nitrogen is gone into the still mouth to 7---kettle covers 8---
9---nitrogen goes out still mouth 10---tensimeter
11---electrical contact slideway 12---shaft coupling
13---motor 14---temperature sensor slideway
15---oil-in 16---operation valve
17---kettle cover flange 18---electric-heating belts (line)
19---heat eliminating medium goes out running-on 20---temperature sensor sleeve pipe
21---temperature sensor 22---temperature sensor frame
23---stirrer 24---paddle
25---anchor formula circulation maker 26---still
27---oil-out 28---extension spring
29---electrode
Claims (8)
1, a kind of high pressure sealing circulation type crude oil wax analogue means is characterized in that it comprises that one has the airtight still (26) of oil-in (15), oil-out (27), electric mixer (23), temperature control system and the detection system in the insertion still (26).
2, according to the described high pressure sealing circulation type of claim 1 wax deposition analogue means, it is characterized in that jar shape inner bag (6) place suitable for reading connects oval kettle cover (7) by kettle cover flange (17) and constitutes seal pot (26), motor (13) through shaft coupling (12) connect stirrer (23) from kettle cover (7) center of top by outer insertion still (26) in and sealing, temperature control system comprises being connected with stirrer (23) to be inserted the internal heater in the still (26) in the lump and is wrapped in chuck (4), heat-insulation layer (3) and shell (2) outside the inner bag (6); Detection system comprise from kettle cover (7) lead to tensimeter (10) in still (26), survey temperature sensor (21-2) in oil temperature a plurality of, temperature sensor slideway (14) and from outside pass a plurality of temperature sensor sleeve pipes (20) that shell (2), heat-insulation layer (3), chuck (4) be affixed on inner bag (6) outer wall, the temperature sensor (21-1) that is loaded on the survey still wall temperature in it and with the supporting logging of all temperature sensors.
3, according to claim 1,2 described high pressure sealing circulation type crude oil wax analogue means, the paddle (24) that it is characterized in that being installed in stirrer (23) lower end is anchor formula or frame.
4, according to claim 1,2 described high pressure sealing circulation type crude oil wax analogue means, it is characterized in that the still internal heater is for being fixed on the anchor frame anchor formula circulation maker (25) of the perpendicular sleeve pipe of stirrer (23) axle lower end bifurcated, on frame, be wound with electric-heating belt (line) (18), the perpendicular upper end of sleeve pipe outside still (26) two annulus that are connected, two electrical contact slideways (11) with the annulus insulation are arranged on it, each links to each other with electric-heating belt (line) (18) two ends, by insert electrode (29) in two arc-spark stands that are fixed on the annulus and by extension spring (28) with electrode (29) and electrical contact slideway (11) sliding contact.
5, according to claim 1,2 described high pressure sealing circulation type crude oil wax analogue means, it is characterized in that chuck (4) profile is similar to inner bag (6), be placed in the outer back of inner bag (6) and laterally coil spiral deflector (5) in the cover between the chuck (4) from top to bottom all around at inner bag (6), and connect with the weldering of the inwall of inner bag (6) outer wall and chuck (4), be connected in chuck (4) bottom and stretch out a heat eliminating medium and go into running-on (1), be connected in chuck (4) top one side and stretch out a heat eliminating medium and go out running-on (19), the heat-insulation layer (3) of same bag one similar figures outside chuck (4), fill insulant material in the outsourcing steel casing (2), heat-insulation layer (3).
6, according to claim 1,2 described high pressure sealing circulation type crude oil wax analogue means, it is characterized in that going out a pipeline section at a face down bonding of kettle cover (7), its outer end valve that is connected becomes nitrogen to go into still mouth (8), and the pipeline section middle part is welded out a little pipeline section again and become nitrogen to go out still mouth (9) with valve.
7, according to claim 1,2 described high pressure sealing circulation type crude oil wax analogue means, the temperature sensor (21-2) that it is characterized in that the test oil temperature is installed in anchor formula circulation maker (25) frame to become in 90 ° of tubulose temperature sensor framves (22) that are connected with stirrer (23) axle, and install many at interval, the lead-in wire of temperature sensor (21-2) from temperature sensor frame (22) penetrate that stirrer (23) up is connected to outside the still (26) on two annulus that are connected outside the perpendicular sleeve pipe always and with the temperature sensor slideway (14) of its insulation on, by insert electrode (29) in two arc-spark stands that are fixed on the annulus and by extension spring (28) with electrode (29) and temperature sensor slideway (14) sliding contact; A plurality of temperature sensors (21-1) of surveying the still wall temperature are inserted into temperature sensor sleeve pipe (20) lining respectively and press close to still (26) outer wall place.
8, according to claim 1,2 described high pressure sealing circulation type crude oil wax analogue means, it is characterized in that temperature sensor (21-1), (21-2) are a line digital temperature sensor, the logging supporting with it is the unibus temperature polling instrument.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420049629 CN2700882Y (en) | 2004-04-27 | 2004-04-27 | High-pressure sealing ring flow type crude oil waxing stimulation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420049629 CN2700882Y (en) | 2004-04-27 | 2004-04-27 | High-pressure sealing ring flow type crude oil waxing stimulation device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2700882Y true CN2700882Y (en) | 2005-05-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420049629 Expired - Lifetime CN2700882Y (en) | 2004-04-27 | 2004-04-27 | High-pressure sealing ring flow type crude oil waxing stimulation device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2700882Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100376837C (en) * | 2004-04-27 | 2008-03-26 | 中国石油天然气股份有限公司 | High pressure sealing ring current type crude oil wax deposition simulating device |
| CN106546713A (en) * | 2015-09-18 | 2017-03-29 | 亚申科技研发中心（上海）有限公司 | Wax content in crude oil analyzer |
| CN106979829A (en) * | 2017-03-28 | 2017-07-25 | 南京航空航天大学 | A kind of multi-channel temperature measurement device applied to continuous stirred tank |
| EP4276433A1 (en) * | 2022-05-13 | 2023-11-15 | Dietatec Oy | Method and apparatus for measuring and controlling temperature in a kettle |
-
2004
- 2004-04-27 CN CN 200420049629 patent/CN2700882Y/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100376837C (en) * | 2004-04-27 | 2008-03-26 | 中国石油天然气股份有限公司 | High pressure sealing ring current type crude oil wax deposition simulating device |
| CN106546713A (en) * | 2015-09-18 | 2017-03-29 | 亚申科技研发中心（上海）有限公司 | Wax content in crude oil analyzer |
| CN106979829A (en) * | 2017-03-28 | 2017-07-25 | 南京航空航天大学 | A kind of multi-channel temperature measurement device applied to continuous stirred tank |
| EP4276433A1 (en) * | 2022-05-13 | 2023-11-15 | Dietatec Oy | Method and apparatus for measuring and controlling temperature in a kettle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20140427 Granted publication date: 20050518 |