CN109724877A - A kind of system and method for oil pipe drag-reduction effect and pressure test - Google Patents
A kind of system and method for oil pipe drag-reduction effect and pressure test Download PDFInfo
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- CN109724877A CN109724877A CN201811637524.6A CN201811637524A CN109724877A CN 109724877 A CN109724877 A CN 109724877A CN 201811637524 A CN201811637524 A CN 201811637524A CN 109724877 A CN109724877 A CN 109724877A
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Abstract
The present invention discloses the system and method for a kind of oil pipe drag-reduction effect and pressure test, is passed sequentially through oil pipe by fuel tank, backing pump and motor, first filter, advanced pump and motor, check valve, pressure gauge, oleophobic pipe, common tube, reversal valve, the second filter, pressure regulator valve, fuel tank and is composed in series as circuit；It is wherein connected with overflow valve between backing pump and the oil inlet and oil outlet of motor, the first differential pressure indicator is connected between the oil inlet and oil outlet of oleophobic pipe, is connected with the second differential pressure indicator between the oil inlet and oil outlet of common tube；The present invention can test the pressure difference the oil inlet and outlet of testing tube at various pressures, can also test simultaneously in oleophobic pipe pressure difference under homogeneous pressure with common tube pressure difference, calculated drag reducing efficiency is more accurate.The voltage-withstand test at various pressures to testing tube may be implemented, the switching between pressure difference test pattern and voltage-withstand test mode, simpler convenience may be implemented by reversal valve.
Description
Technical field
The invention belongs to seafari fields, and in particular to used in a kind of underwater glider floatage system there is drag reduction to make
With oil pipe, the system and method for drag-reduction effect test and voltage-withstand test is carried out to the oil pipe.
Background technique
Ocean is related to the development and existence of the mankind as blue territory, and especially on land, various resources are more and more exhausted
In the case where, more and more countries focus on sight under the sea of this piece sky blue.In this background, submarine navigation device
It comes into being.The especially application of underwater glider, underwater glider are to be transformed to advance by buoyancy by adjusting buoyancy variation
Motive force, realize long timing, on a large scale navigation.Underwater glider has that voyage is remote, energy consumption is small, small in size and make an uproar
The advantages that sound is small is applied very well in various aspects such as marine monitoring, habitata, military oceans.By being plated to channel interior
The promotion that bionical superoleophobic nanohole array coating realizes underwater glider floatage driving unit pipe-line system overall efficiency is carved, into
One step increases voyage and the activity duration of underwater glider.And it invents a kind of to the drag-reduction effect test device of the oil pipe and side
Method is of great significance.
Summary of the invention
Purpose of the invention is to overcome the shortcomings in the prior art, provides a kind of oil pipe drag-reduction effect and pressure test
System and method, the pressure difference with super oleophobic coating oil pipe and common tube both ends under different pressures can be tested simultaneously,
Drag reducing efficiency under different pressures may further be calculated.Voltage-withstand test can also be carried out to the oil pipe, which, which has, conveniently tears open
It fills and builds, the advantages such as easy to operate.
The purpose of the present invention is what is be achieved through the following technical solutions:
A kind of system of oil pipe drag-reduction effect and pressure test, by fuel tank, backing pump and motor, first filter, advanced
Pump and motor, check valve, pressure gauge, oleophobic pipe, common tube, reversal valve, the second filter, pressure regulator valve, fuel tank pass sequentially through oil
Pipe is composed in series as circuit；Wherein be connected with overflow valve between backing pump and the oil inlet and oil outlet of motor, oleophobic pipe into
It is connected with the first differential pressure indicator between hydraulic fluid port and oil outlet, is connected with the second differential pressure indicator between the oil inlet and oil outlet of common tube；
Wherein pressurization has been collectively formed in fuel tank, backing pump and motor, advanced pump and motor, overflow valve, filter, check valve
Branch, inlet pressure of the fuel tank to fuel feeding, backing pump and motor to increase advanced pump and motor, first filter are used for
Impurity in filtering pressurization branch, check valve prevent the reverse circulated in pressure maintaining link liquid；
Test branch has been collectively formed in pressure gauge, oleophobic pipe, common tube, the first differential pressure indicator, the second differential pressure indicator, and pressure gauge is used
In the inlet pressure of display test branch, the first differential pressure indicator is for testing pressure difference between oleophobic pipe oil inlet and outlet, and second
Differential pressure indicator is for testing pressure difference between plain tubing oil inlet and outlet；
Pressure release branch has been collectively formed in reversal valve, the second filter, pressure regulator valve, fuel tank, and reversal valve is for switching pressure difference survey
Die trial formula and voltage-withstand test mode, the second filter are used to filter the impurity before entering fuel tank in oil, and pressure regulator valve is for reconciling
Different test pressure.
Further, bionical superoleophobic nanohole array coating is carved in the inside plating of the oleophobic pipe.
Further, it is described it is advanced pump and motor in advanced pump use plunger pump.
A kind of method of oil pipe drag-reduction effect and pressure test, comprising the following steps:
(1) reversal valve is switched in diagram and is connected to position, by debugging valve debugging to minimum pressure；
(2) backing pump and motor are opened, advanced pump and motor is opened after 20S, makes oil circulation 5min, the entire oil circuit of venting
In gas；
(3) pressure regulator valve is reconciled to setting pressure P1, pressure gauge is then observed to when setting pressure, and reversal valve is switched into cut-off
Position also shuts off advanced pump and motor and backing pump and motor, carries out pressure maintaining test；
(4) after pressure maintaining is tested, pressure difference test is carried out, reversal valve is switched into connection position, after pressure stabilisation, record first
The registration of differential pressure indicator is △ P11, the registration of the second differential pressure indicator is △ P21, calculate in pressure P1Under drag reducing efficiency be
η=(△ P21-△P11)/△P21X100%；
(5) pressure regulator valve is reconciled to setting pressure P2, the process of step (3), (4) is repeated, the pressure maintaining under other pressure is carried out
Test is tested with pressure difference, final to realize that pressure difference test is tested with pressure maintaining.
Compared with prior art, the beneficial effects brought by the technical solution of the present invention are as follows:
1. the present invention can test the pressure difference the oil inlet and outlet of testing tube at various pressures, using will be general
Siphunculus and testing tube are connected on the mode of same branch road, and oleophobic pipe pressure difference and common tube pressure difference under homogeneous pressure may be implemented
It tests simultaneously, calculated drag reducing efficiency is more accurate.
2. the voltage-withstand test to testing tube at various pressures may be implemented in the present invention, pressure difference may be implemented by reversal valve
Switching between test pattern and voltage-withstand test mode, simpler convenience.
3. by the way that reverse flow can be prevented when reversal valve is switched to voltage-withstand test using check valve in pressurization branch,
Realize pressure holding function.
4. using backing pump and motor pressure can be provided for the oil inlet of advanced pump and motor, advanced pump is prevented to be emptied.
It is more safe and reliable
Detailed description of the invention
Fig. 1 is the structural schematic diagram of present system.
Appended drawing reference: 1- fuel tank, 2- backing pump and motor, 3- first filter, the advanced pump of 4- and motor, 5- check valve,
6- pressure gauge, 7- oleophobic pipe, 8- common tube, 9- reversal valve, the second filter of 10-, 11- pressure regulator valve, 12- overflow valve, 13- first
Differential pressure indicator, the second differential pressure indicator of 14-
Specific embodiment
The present invention is described in further detail below in conjunction with the drawings and specific embodiments.It should be appreciated that described herein
Specific embodiment be only used to explain the present invention, be not intended to limit the present invention.
The invention patent provides the system of a kind of oil pipe drag-reduction effect and pressure test, it can be to test oil pipe in difference
Pressure difference test under pressure between oil inlet and outlet, may further calculate with super oleophobic coating oil pipe in different pressures
Drag reducing efficiency under power, while voltage-withstand test can also be carried out to test oil pipe.As shown in Figure 1, by fuel tank 1, backing pump in the system
And motor 2, first filter 3, advanced pump and motor 4, check valve 5, pressure gauge 6, oleophobic pipe 7, common tube 8, reversal valve 9, the
Tow filtrator 10, pressure regulator valve 11, fuel tank 1 pass sequentially through oil pipe and are composed in series as circuit；The wherein oil inlet of backing pump and motor 2
It is connected with overflow valve 12 between oil outlet, the first differential pressure indicator 13 is connected between the oil inlet and oil outlet of oleophobic pipe 7, commonly
The second differential pressure indicator 14 is connected between the oil inlet and oil outlet of pipe 8.
The pressure testing system can be divided into pressurization branch, test branch and the big branch of pressure release branch three and constitute.It is pressurized branch
It is made of fuel tank 1, backing pump and motor 2, advanced pump and motor 4, overflow valve 12, first filter 3, check valve 5, wherein fuel tank
1 is used to fuel feeding, and backing pump and motor 2 are used to increase advanced pump and 4 inlet pressure of motor, because advanced pump uses plunger pump,
Oil inlet must have precompression, can prevent advanced pumping chamber, and first filter 3 is used to filter the impurity in pressurization branch, unidirectionally
Valve 5 is prevented in pressure maintaining link liquid reverse circulated；
Test branch routing pressure gauge 6, the oleophobic pipe 7 of bionical superoleophobic nanohole array coating is carved in internal plating, common tube 8,
First differential pressure indicator 13, the second differential pressure indicator 14 composition, pressure gauge 6 are used to show that test branch inlet pressure, the first differential pressure indicator 13 are used
Test pressure difference between 7 oil inlet and outlet of oleophobic pipe, the second differential pressure indicator 14 is used to test 8 oil inlet and outlet of common tube
Between pressure difference；
Pressure release branch routes reversal valve 9, the second filter 10, pressure regulator valve 11, fuel tank 1 and forms, and reversal valve 9 is used to switch pressure
The pressure difference test pattern and voltage-withstand test mode of test macro, it is miscellaneous in oil before the second filter 10 is used to filter into fuel tank
Matter, pressure regulator valve are used to reconcile different test pressure.
The specific test method is as follows for the system:
1. building the system by connection type as shown in Figure 1；
2. the left position that reversal valve switches in diagram is connected to position, by debugging valve debugging to minimum pressure；
3. first opening backing pump and motor, advanced pump and motor are opened after 20S, makes oil circulation 5min, venting is entirely oily
Gas in road；
4. reconciling pressure regulator valve to setting pressure P1, pressure gauge is then watched to when setting pressure, and reversal valve is switched in figure
Position is ended in right position, also shuts off advanced pump and motor and backing pump and motor, carries out pressure maintaining test；
5. after pressure maintaining is tested, carrying out pressure difference test, reversal valve is switched into connection position, it is after pressure stabilisation, record pressure difference
The registration of table 1 is △ P11, the registration of differential pressure indicator 2 is △ P21, calculate in pressure P1Under drag reducing efficiency be η=(△ P21-△
P11)/△P21X100%
6. reconciling pressure regulator valve to setting pressure P2, then repeatedly step 4, step 5 process.Carry out the pressure maintaining under other pressure
Test is tested with pressure difference, is finally realized pressure difference test and is tested with pressure maintaining.
The present invention is not limited to embodiments described above.Above the description of specific embodiment is intended to describe and say
Bright technical solution of the present invention, the above mentioned embodiment is only schematical, is not restrictive.This is not being departed from
In the case of invention objective and scope of the claimed protection, those skilled in the art may be used also under the inspiration of the present invention
The specific transformation of many forms is made, within these are all belonged to the scope of protection of the present invention.
Claims (4)
1. a kind of system of oil pipe drag-reduction effect and pressure test, which is characterized in that by fuel tank, backing pump and motor, the first mistake
Filter, it is advanced pump and motor, check valve, pressure gauge, oleophobic pipe, common tube, reversal valve, the second filter, pressure regulator valve, fuel tank according to
It is secondary to be composed in series by oil pipe as circuit；It wherein is connected with overflow valve between backing pump and the oil inlet and oil outlet of motor, is dredged
It is connected with the first differential pressure indicator between the oil inlet and oil outlet of oil pipe, is connected with second between the oil inlet and oil outlet of common tube
Differential pressure indicator；
Wherein pressurization branch has been collectively formed in fuel tank, backing pump and motor, advanced pump and motor, overflow valve, filter, check valve
Road, inlet pressure of the fuel tank to fuel feeding, backing pump and motor to increase advanced pump and motor, first filter were used for
Impurity in filter pressurization branch, check valve prevent the reverse circulated in pressure maintaining link liquid；
Test branch has been collectively formed in pressure gauge, oleophobic pipe, common tube, the first differential pressure indicator, the second differential pressure indicator, and pressure gauge is for showing
Show the inlet pressure of test branch, the first differential pressure indicator is for testing pressure difference between oleophobic pipe oil inlet and outlet, the second pressure difference
Table is for testing pressure difference between common tube oil inlet and outlet；
Pressure release branch has been collectively formed in reversal valve, the second filter, pressure regulator valve, fuel tank, and reversal valve is for switching pressure difference test mould
Formula and voltage-withstand test mode, the second filter are used to filter the impurity before entering fuel tank in oil, and pressure regulator valve is for reconciling difference
Test pressure.
2. a kind of system of oil pipe drag-reduction effect and pressure test according to claim 1, which is characterized in that the oleophobic pipe
Inside plating be carved with bionical superoleophobic nanohole array coating.
3. a kind of system of oil pipe drag-reduction effect and pressure test according to claim 1, which is characterized in that the advanced pump
And the advanced pump in motor uses plunger pump.
4. a kind of method of oil pipe drag-reduction effect and pressure test is surveyed based on oil pipe drag-reduction effect and pressure described in claim 1
The system of examination, which comprises the following steps:
(1) reversal valve is switched into connection position, by debugging valve debugging to minimum pressure；
(2) backing pump and motor are opened, opens advanced pump and motor after 20S, makes oil circulation 5min, in the entire oil circuit of venting
Gas；
(3) pressure regulator valve is reconciled to setting pressure P1, pressure gauge is observed afterwards to when setting pressure, reversal valve is switched into cut-off position, simultaneously
Turn off advanced pump and motor and backing pump and motor, carries out pressure maintaining test；
(4) after pressure maintaining is tested, pressure difference test is carried out, reversal valve is switched into connection position, it is after pressure stabilisation, record the first pressure difference
The registration of table is △ P11, the registration of the second differential pressure indicator is △ P21, calculate in pressure P1Under drag reducing efficiency be
η=(△ P21-△P11)/△P21X100%；
(5) pressure regulator valve is reconciled to setting pressure P2, repeat step (3), (4) process, carry out under other pressure pressure maintaining test with
Pressure difference test, it is final to realize that pressure difference test is tested with pressure maintaining.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811637524.6A CN109724877A (en) | 2018-12-29 | 2018-12-29 | A kind of system and method for oil pipe drag-reduction effect and pressure test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811637524.6A CN109724877A (en) | 2018-12-29 | 2018-12-29 | A kind of system and method for oil pipe drag-reduction effect and pressure test |
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| CN109724877A true CN109724877A (en) | 2019-05-07 |
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| CN201811637524.6A Pending CN109724877A (en) | 2018-12-29 | 2018-12-29 | A kind of system and method for oil pipe drag-reduction effect and pressure test |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110243756A (en) * | 2019-07-23 | 2019-09-17 | 沈阳农业大学 | A kind of resistance measurement device based on mud |
| CN110864874A (en) * | 2019-12-04 | 2020-03-06 | 西南石油大学 | Multifunctional resistance reduction effect experiment testing device and method |
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Cited By (3)
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| CN110864874A (en) * | 2019-12-04 | 2020-03-06 | 西南石油大学 | Multifunctional resistance reduction effect experiment testing device and method |
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Application publication date: 20190507 |