CN206670974U - A kind of oil pipeline on-line period detection means - Google Patents
A kind of oil pipeline on-line period detection means Download PDFInfo
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- CN206670974U CN206670974U CN201720172005.1U CN201720172005U CN206670974U CN 206670974 U CN206670974 U CN 206670974U CN 201720172005 U CN201720172005 U CN 201720172005U CN 206670974 U CN206670974 U CN 206670974U
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Abstract
A kind of oil pipeline on-line period detection means is the utility model is related to, it is provided with one section of bypass on main pipeline, and the arrival end of the bypass connects sampling probe, and the sampling probe accesses main pipeline；Sampling pump is provided with the bypass and is followed by sampling loop and spray circuits in sampling pump, the port of export of the spray circuits accesses main pipeline through nozzle, and the sampling loop substitutes table sample, and remaining liq finally also imports main pipeline.The utility model can realize that reliable, real-time continuous, sample size is accurate, flow control in loop is accurate, be finally reached and obtain representative sample, sampling process automation, the requirement of system control precision.
Description
Technical field
A kind of oil pipeline on-line period detection means is the utility model is related to, belongs to detection and the pipeline sample train of quality
System technical field.
Background technology
For oil pipeline on-line period technology, conventional process is manual manual sampling or on oil transportation main pipeline
Bypass is drawn, and sampling pump and sampling equipment are set in bypass, then the mode for leading back injection main pipeline will be bypassed.
The shortcomings that such a sampler is：1st, mixing arrangement is not provided with, can not ensure that liquid is sufficiently mixed in pipeline, is obtained
Sample may be under-represented；2nd, be not provided with sampling control system, can not realize to sampling system equipment state, power conditions,
The monitoring of sampling loop flow velocity, sampling frequency；3rd, flow measurement is not carried out to sampling loop, to liquid stream in sampling loop whether just
Chang Wufa judges；4th, because pipeline medium cleannes are not high, the impurity that the inside is contained is frequently occluded sampling pump, causes sampling pump
Failure damage, it can not thus realize that on-line period is carried out continuously；5th, pump discharge pipeline easily produces backflow；6th, it is not provided with manually
Sampler, the system failure can not sample；7th, back-up circuit is not provided with, system easily produces failure；8th, it is not provided with sampling container
Facility is protected, sample is easily produced and overflows peril；9th, it is not provided with cleaning interface, is unfavorable for system maintenance, easily pollutes sample
Product；10th, temperature, pressure instrumentation are not provided with, lacks the monitoring to loop process parameter；11st, flow control is not implemented, can not
Realize that sampling loop flow follows main pipeline changes in flow rate；12nd, be not implemented in sampling rate and sample size and main pipeline flow into
Ratio.
Utility model content
To solve the above problems, the purpose of this utility model is that providing one kind makes the operation of oil pipeline on-line period more become
In standardization, facilitation, scientific, automation, on-line period systematic sampling representativeness, accuracy, continuity, reliably are improved
Property and security, facilitate operation maintenance, monitoring management, the oil pipeline on-line period detection means of installation and transportation.
The purpose of this utility model is achieved through the following technical solutions：
A kind of oil pipeline on-line period detection means, one section of bypass, the entrance of the bypass are provided with main pipeline
Sampling probe is terminated, the sampling probe accesses main pipeline, and sampling probe is followed by branch road A and branch road B, the branch road A and branch road B
On be equipped with filter and sampling pump, branch road A and branch road B outlet merge into a pipeline, and are accessed respectively after joint
Sample loop and spray circuits, wherein the spray circuits access main pipeline through nozzle；
The entrance of the sampling loop connected after on-line densimeter branch road C and branch road D, the branch road C with it is equal on branch road D
Outlet provided with sampling control valve A, the branch road C and branch road D merges into a pipeline, and pressure is sequentially connected in series after joint
Main pipeline is imported after transmitter, temperature transmitter and flowmeter；
Branch road C and the sampled control valves of branch road D are connected together as pipeline E, the entrance connection liquid separation threeway of the pipeline E
Valve, connect sample reception tank A and sample reception tank B respectively after the liquid separation triple valve, the sample reception tank A and sample connect
Closed cans B is respectively placed on weighing instrument A and weighing instrument B, wherein, it is other between the entrance and liquid separation triple valve of the pipeline E to connect peace
Full bleeder valve.
Further, branch road A is identical with branch road B setting, is mutually redundant；Wherein, branch road A is sequentially connected in series technique from entrance
Valve C, pressure gauge A, filter A, sampling pump A, pressure gauge B, process valve D and check valve A；Branch road B is sequentially connected in series from entrance
Process valve E, pressure gauge C, filter B, sampling pump B, pressure gauge D, process valve F and check valve B.
Further, branch road C is identical with branch road D setting, is mutually redundant；Wherein, branch road C is sequentially connected in series technique from entrance
Valve L, sampling control valve A and process valve M；Branch road D is sequentially connected in series process valve N, sampling control valve B and technique valve from entrance
Door O；Branch road C and branch road D both sides are parallel with one section of bypass line, and the bypass line is provided with process valve P.
Further, sampling probe has also been sequentially connected in series process valve A and process valve B, institute before meeting branch road A and branch road B
State process valve B connection branch road A and branch road B entrance；The other dynamic sampling valve of catcher between sampling probe and process valve A；Technique
It is other between valve B and branch road A, branch road B inlet connections to meet purge valve A.
Further, also it has been sequentially connected in series between branch road A and branch road B joint and the nozzle in the spray circuits
Process valve G and process valve H.
Further, the sampling loop is sequentially connected in series process valve I, on-line densimeter and process valve K, institute from entrance
State process valve K connection branch road C and branch road D entrance；It is other between the entrance and process valve I of sampling loop to be connected to blowoff valve
Door；Pipeline F parallel connection technology the valves J, the process valve J that process valve I, on-line densimeter and process valve K are formed and pipe
Emptying valve is connect by the junction of line F outlets.
Further, the sampling loop port of export has also been sequentially connected in series purge valve B, process valve before main pipeline is imported
Q and process valve R.
Further, filter A both sides parallel connection differential pressure switch A, filter B both sides parallel connection differential pressure switch B, the differential pressure are opened
A and differential pressure switch B is closed respectively through instrument cable access controller；
Sampling pump A, sampling pump B, on-line densimeter, weighing instrument A, weighing instrument B, sampling control valve A, sampling control valve B, point
Liquid triple valve, pressure transmitter, temperature transmitter, flowmeter are by instrument cable access controller, and the controller is through instrument
Cable accesses master control system.
Further, the sampling probe stretches into main pipeline center to main pipeline central lower 0.1D position, wherein, D
For the diameter of main pipeline；
The nozzle is hollow straight tube, the bottom lock of the nozzle and is combined with main pipeline bottom, the hollow straight tube
Outer wall to be uniformly provided with several sprays empty.
Further, it is equipped with electric tracing thermal insulation part on the bypass, spray circuits and sampling loop；
Sampling pump B on the sampling pump A and branch road B uses frequency conversion centrifugal pump；
The metal screen in filter B on the filter A and branch road B is provided with magnetic absorption device.
The beneficial effects of the utility model are：
It can realize that oil pipeline on-line period is carried out continuously using on-line period detection means described in the utility model, have
Sample representation, quantity accuracy, operation stability, simple operation, beneficial to many-sided advantage such as maintenance in the future and maintenance,
Superior system remote detection and control are also subjected to while realizing sampling system independent control.Make pipe-line construction and operational management
More they tend to standardization, modularization, high efficiency, hommization, shortcut.
Oil pipeline can realize reliable, installation side after using on-line period detection means described in the utility model
Just, real-time continuous, sample size is accurate, flow control in loop is accurate, and reach obtain sample is representative, sampling process from
Dynamicization, system control precision requirement, ensure that sampling system it is continuous, obtain stably, automatically, in proportion it is representational
Sample.The device is provided with dynamic mixed function, is fitted into using pump discharge in the nozzle jet-action mixed charge road in main pipeline
Fluid, it is ensured that liquid stream can be well mixed under any flow velocity in main pipeline so that abundant into the liquid stream in sampling loop
The property of liquid in main pipeline is represented, avoids sampling from only representing local feature and does not possess representativeness.The device can provided with controller
Equipment in sampling loop (pump, sampling control valve, liquid separation triple valve) and operational factor (pressure, temperature, flow, are taken with realizing
Sample amount, density, liquid level of sample reception tank etc.) real-time monitoring；And the instruction of higher level's master control system can be received at any time；According to
Flow velocity in main pipeline improves or reduced sampling frequency；Ensure steady sampling system, safety, controlled operation.The device samples back
Road is provided with flowmeter, the flow velocity of liquid in real-time measure loop, using the flow velocity of liquid in loop as controlled parameter, passes through and samples control
The rotating speed of system processed control variable frequency pump realizes in sampling loop flow rate of liquid in flow velocity real-time tracking main pipeline.The device is provided with
Sampling pump, sample reception tank, sampling control valve, the filter of redundancy, ensure the continuously available of system.The device with main pipeline
Junction sets manual sampling valve also to carry out manual sampling operation to ensure that even if system can not work.
The device fills outdoor design (controller is mounted remotely from the non-anti-explosion area at scene) by sledge, and its degree of protection is
IP65, explosive-proof grade EXdIIBT4, fully meet open-air atmosphere and live requirement of explosion proof；Sample treatment and the sampling pump of conveying are adopted
With frequency conversion centrifugal pump, realize to bypass and the flow velocity of sampling loop and the control of pressure, it is met the requirement of standard；In device
Porch sampling pump before be provided with redundant filter, it is ensured that the stability and reliability of the continuous operation of sampling pump；Taking
Sample pump discharge sets check valve to prevent that liquid level flows back in bypass duct；Butterworth Hatch is respectively provided with the inlet and outlet of device,
Cleaning uses external medium cleaning way, and structure arrangement is easy to handle and cleaned, and can be achieved not turning off and safeguards in the case of main pipeline；
Equipped with related emptying, blowdown pipeline and valve in sampling loop, blowdown, shut-off can be carried out to the pipeline in device and equipment
And emission treatment, it is easy to daily maintenance and maintenance；Temperature transmitter, pressure transmitter, flowmeter are provided with sampling loop, it is real
When monitor the temperature of sampling loop, pressure, flow, it is ensured that sampling is carried out under reasonable conditions；It is provided with sample reception tank
Weighing-appliance, whether for being alarmed when the liquid level superelevation in device, while it is accurate to monitor sample size acquirement in tank；Provided with safety
Bleeder valve, when superpressure reach safety valve release value when, safety valve action, to sample reception loop and connect sample reception tank implement
Safeguard protection；Pipeline and equipment in device are provided with constant temperature electrical heating and Insulation, it is ensured that the stream in on-line period device
Body is not protected from environmental, enables the device in outdoor stable operation.Differential pressure switch is set to be used for sample train before and after filter
The running status of system detection filter, judges whether filter blocks.
The utility model is applied to oil pipeline on-line period.This automatic sampling system is used for domestic project first, mainly
Technical indicator exceedes domestic best level, has reached international same period advanced level.Pumped (conveying) medium sample is inherently improved to take
The representativeness obtained, reduce trade dispute；Do not influenceed by Oil Production technique and transport oil condition change；It is not affected by human factors；
Reduce the labor intensity of operating personnel.The technique of use, equipment, material and structure technology are advanced, design document component content and
Depth meets the requirements.With it is with high content of technology, processing performance is advanced, technological process is reasonable, do not produce the pressure loss, be applicable difference
Caliber and any range of flow.Good environmental benefit, economic benefit and social benefit are generated after the system self-operating, very
The requirement that good satisfaction is built, produces and use, overall economic efficiency are significantly improved than built same type project, and transport
Row is reliably, stably, efficient, safe.
Brief description of the drawings
Fig. 1 is the structural representation of oil pipeline on-line period device described in the utility model；
Wherein, 1- sampling probes, the manual sampling valves of 2-, 3- process valves A, 4,7,17,26,29,34,40,53,58,
60- electric tracing thermal insulation parts, 5- process valves B, 6- purge valve A, 8- bypass, 9- process valves C, 10- pressure gauge A, 11- filtering
Device A, 12- differential pressure switch A, 13- sampling pump A, 14- pressure gauge B, 15- process valve D, 16- check valve A, 18- process valve E,
19- pressure gauge C 20- filter Bs, 21- differential pressure switches B, 22- sampling pump B, 23- pressure gauge D, 24- process valve F 25- are mono-
To valve B, 27- purge valves B, 28- process valve G, 30- process valve H, 31- nozzle 32- sampling loops, 33- sewage draining valves,
35- process valves I, 36- on-line densimeter, 37- process valves J, 38- process valve K, 39- emptying valve, 41- process valves
L, 42- sampling control valve A, 43- process valve M, 44- process valve N, 45- sampling control valve B, 46- process valve O, 47- point
Liquid triple valve, 48- relief valves, 49- sample reception tank A, 50- sample reception tank B, 51- weighing instrument A, 52- weighing instrument B,
54- process valves P, 55- pressure transmitter, 56- temperature transmitters, 57- flowmeters, 59- process valves Q, 61- process valve R,
62nd, 63,64,65,66,67,68,69,70,71,72,73,76- instrument cables, 74- controllers, 75- master control systems, 77-
Spray circuits.
Embodiment
In order that the purpose of this utility model, technical scheme and advantage are more clearly understood, below in conjunction with accompanying drawing and implementation
Example, the utility model is further elaborated.It should be appreciated that specific embodiment described herein is only explaining this
Utility model, it is not used to limit the utility model.
A kind of oil pipeline on-line period device, as shown in figure 1, being provided with one section of bypass 8, the bypass on main pipeline
8 arrival end connects sampling probe 1, and the sampling probe 1 accesses main pipeline.
Wherein, sampling probe 1 is sequentially connected in series process valve A3 and process valve B5, sampling probe 1 and process valve A3 it
Between the other dynamic sampling valve 2 of catcher, the entrance of the process valve B5 connection branch road A and branch road B, the branch road A and branch road B setting phases
Together, be mutually redundant, wherein branch road A from entrance be sequentially connected in series process valve C9, pressure gauge A10, filter A11, sampling pump A13,
Pressure gauge B14, process valve D15 and check valve A16, branch road B are sequentially connected in series process valve E18, pressure gauge C19, mistake from entrance
Filter B20, sampling pump B22, pressure gauge D23, process valve B25 and check valve B25, filter A11 both sides parallel connection differential pressure switches
A12, the both sides parallel connection differential pressure switch B21 of filter B 20, the differential pressure switch A12, differential pressure switch B21 access through instrument cable
Controller 74.It is other between process valve B5 and branch road A, branch road B inlet connections to meet purge valve A6.Branch road A and branch road B outlet
A spray circuits 77 are merged into, and process valve G28 and process valve are sequentially connected in series after branch road A and branch road B joint
H30, most access main pipeline through the nozzle 31 afterwards.
The branch road A, branch road B joint and process valve G28 between it is other connect sampling loop 32, wherein, the sampling
Loop 32 is sequentially connected in series process valve I35, on-line densimeter 36 and process valve K38, the process valve K38 companies from entrance
Connect branch road C and branch road D entrance.Wherein, it is other between the entrance of sampling loop 32 and process valve I35 to connect sewage draining valve 33.Work
The pipeline F parallel connection technology valve J37 that skill valve I35, on-line densimeter 36 and process valve K38 are formed, the process valve
Emptying valve 39 is connect by the junction of J37 and pipeline F outlets.The branch road C is identical with branch road D setting, is mutually redundant, its
Middle branch road C is sequentially connected in series process valve L41 from entrance, samples control valve A42 and process valve M43, and branch road D goes here and there successively from entrance
Meet process valve N44, sampling control valve B45 and process valve O46；The branch road C and branch road D outlet merges into a pipe
Road, and pressure transmitter 55, temperature transmitter 56, flowmeter 57, purge valve B27, process valve are sequentially connected in series after joint
Q59 and process valve R61, finally imports main pipeline.Branch road C and branch road D both sides are parallel with one section of bypass line, the side
Stylet is provided with process valve P54.
Sampled control valve A42 and sampling control valve B45's branch road C and branch road D are connected together as pipeline E, the pipe respectively
Line E entrance connection liquid separation triple valve 47, sample reception tank A49 and sample reception are connected after the liquid separation triple valve 47 respectively
Tank B50, sample reception tank A49 and sample reception the tank B50 are respectively placed on weighing instrument A51 and weighing instrument B52.Sampling
Control valve A42 and sampling control valve B45 extracts medium the equipment that juxtaposition changed in sample receiver, full-bore design, complete
Taken in section, variable frequency control, high-frequency action (30 times/min), it is ensured that meet that frequency is proportional to flow, unit sample
Quantity obtains accurate.Sample reception tank A49 and sample reception tank B50 use full-closed structure, with fast connecting joint, safety
Bleeder valve, the pressure vessel that material is stainless steel.It is other between the entrance and liquid separation triple valve 47 of the pipeline E to connect relief valve
48。
Sampling pump A13, on-line densimeter 36, weighing instrument A51, weighing instrument B52, sampling control valve A42, sampling control valve
B45, liquid separation triple valve 47, pressure transmitter 55, temperature transmitter 56, flowmeter 57 by instrument cable access controller 74,
The controller 74 accesses master control system through instrument cable.Flowmeter 57 selects mass flowmenter, and the degree of accuracy is high, and inside can not
Dynamic component reduces maintenance workload, long lifespan, and can realize real-time dynamic pressure by the pressure transmitter 55 in sampling loop
Compensation.Controller 74 is on-line period device " brain ", has multiple function：Cryptoguard；Monitor sampling loop temperature, pressure
The parameters such as power, flow, sample reception tank liquid level；Control sampling frequency, it is ensured that proportional to main pipeline flow；Control frequency conversion centrifugation
Revolution speed, reach flow, the purpose of pressure in control sampling loop；Control the flow direction of liquid separatnig valve；Equipment and power supply status monitoring,
Fault alarm；Communicated with higher level's master control system, receive higher level's master control system order and open, stop sampler, receive and monitor
The flow status of main pipeline；And sampler parameter is uploaded into higher level's master control system.
The sampling probe 1 stretches into main pipeline center to main pipeline central lower 0.1D section position, wherein, based on D
The diameter of pipeline, can so avoid influence of the tube wall to flow velocity and moisture content, and the sample of extraction is most representative.
The nozzle 31 is the hollow high intensity straight tube of bottom lock, is uniformly provided with along the outer wall of the hollow straight tube some
Individual spray is empty, the straight tube straight cutting main pipeline bottom, makes whole pipeline beneficial to by the effect by pumping out liquid such as bottom deposit water
Section, which reaches, to be sufficiently mixed, it is ensured that it is in office why not the flow velocity of profit, viscosity, unaffected under density；The bottom of the nozzle 31
Combined closely with main pipeline bottom, to resist moment of flexure caused by main pipeline internal cause Peak Flow Rate, and bear to trigger because of vortex
Vibrations.
Between process valve A3 and process valve B5, process valve B5 and branch road A, branch road B inlet connections, check valve
A16 and branch road A, branch road B outlet joint between, branch road A, branch road B outlet joint and process valve G28 between, work
Between skill valve G28 and process valve H30, between the entrance and process valve I35 of sampling loop 32, process valve K38 and branch
Road C, branch road D inlet connection between, branch road C, branch road D outlet joint and pressure transmitter 55 between, purge valve B27
Between process valve Q59, electric tracing thermal insulation part is equipped between process valve Q59 and process valve R61.
Sampling pump B22 on the sampling pump A13 and branch road B uses frequency conversion centrifugal pump, by controller control frequency conversion from
The rotating speed of heart pump, reach the purpose of control sampling loop flow velocity and injection power.
Before the filter A11 and the redundancy of filter B 20 are arranged on sampling pump, it is provided with the metal screen in filter
Magnetic absorption device, metallic residue and particle in institute's pumped (conveying) medium can be adsorbed well, ensure that the steady of filter and sampling pump
Run calmly and extend its service life.
All pipelines of oil pipeline on-line period detection means described in the utility model and all devices of installation collect
Loaded onto into sledge, pressure rating meets the requirement of design pressure.
Process valve I35, process valve J37, process valve K38, process valve L41, process valve M43, process valve
N44, process valve O46, process valve P54 select 1 " 300#ANSI RF ball valves；
Process valve D15 and process valve F24 selects 3 " 300#ANSI RF ball valves；
Process valve C9, process valve E18, process valve G28 and process valve H30 select 4 " 300#ANSI RF balls
Valve；
Process valve A3 and process valve B5 selects 6 " 300#ANSI RF ball valves；
Check valve A16 and check valve B25 selects 3 " 300#ANSI RF swing type check valves；
Process valve R61 selects 1 " 300#ANSI RF stop valves；
Sampling pump A13 and sampling pump B22 selects frequency conversion centrifugal pump, and entrance " 300#ANSI RF, is exported as 3 " 300# for 4
ANSI RF, maximum stream flow 400GPM, 380/3/60HZ；
" 300#ANSI RF basket filters, swing type bolt are fast from 4 " × 8 " × 4 for filter A11 and filter B 20
Speed opens closure；
Flowmeter 57 selects Rosement 1 " 300#ANSI RF mass flowmenters；
Sample control valve A42 and sampling control valve A45 select 1 " the electro-hydraulic bypass sampling control valves of 300#ANSI RF 210；
Relief valve 48 is from SS-4R3A types 1/4, and " pipe connects angle-style bleeder valve；
Sample reception tank A49 and sample reception tank A50 selects portable example receiving tank, maximum size： 5GAL；
Liquid separation triple valve 47 is made up of following sections：Changing Direction Type valve ferrule fitting SS-43- GXF4-51-SR, threeway
Ball valve, spring return actuator and Changing Direction Type magnetic valve；
What on-line densimeter 36 was selected is " the 300#ANSI RF liquid densimeters of type 1 of Solartron 7845；
Pressure gauge A9, pressure gauge B15, pressure gauge C18, pressure gauge D24 selected ranges are 0-50Bar, and 1/2 " internal thread connects
The pressure display unit connect；
Differential pressure switch A12 and differential pressure switch B21 selects the differential pressure switch with display function；
Pressure transmitter 55 and temperature transmitter 56 select Rosement product；
Control computer of the controller 74 from the models of OMNI 6000.After whole sampler sledge dress production and processing
Anti-corrosion, the antirust treatment of correlation need be made, all process pipelines and equipment do electric tracing and isothermal holding.
In the present embodiment, using the method for on-line period device on-line period described in the utility model in flood-pot experiment process
After be sampled calibrating, it is as follows：
Water filling
A) connection valve, filter, pressure gauge, pipeline, pump, stream are passed through in the upstream of sampler before Autosampler operation
The equipment such as gauge, the water of dose known amounts is injected into main pipeline.
B) element of the water decanting point away from sampling system upstream, at the same need to be Jing Guo sampling system mixing equipment.
C) water injection rate generally accounts for the 1-5% of main pipeline rate-of flow at the appointed time, because this project system is being done
The injection rate of the big needs of output oil amount is with regard to big during experiment, and can not be separated after injecting water, passed through on the premise of technical feasibility with customs,
Commodity inspection is consulted, and injected water volume is adjusted to as 0.6% or so of pipe throughput rate.
D) water injection time is no less than 1 hour, to gather the water filling sample of abundance.
E) water is injected from pipeline bottom with certain speed, can not be produced other mix in injection process to product and be made
With.The speed of medium and direction are identicals in the velocity attitude and main pipeline of water filling.
F the flowmeter accuracy for) measuring water volume is better than ± 2%.
Calibrating
Sampling calibrating carried out under conditions of worst, respectively before testing, test in, test after collect 3 samples
Product.The sample that sampler collects 1 hour before water filling is operated, the sample of 1 hour in the injecting process is then regathered, when all water fillings
After medium is by sampler, then the sample that sampler receives 1 hour is operated, it is determined that containing before testing with the water in sample after test
Amount, test between two moisture content values of gained no more than 0.1%.Water content in the sample obtained eventually through analytical sampling
Judge the performance of whole sampling system with injecting the uniformity of water content, this is a percentage value, and the value exists
It is the highest level of the degree of accuracy generally acknowledged in the world within 0.05%.This item purpose automatic sampling system degree of accuracy is examined through water filling
This rank is reached.
The automatic sampling system of this Project design is as follows through flood-pot experiment verification result：Water content is through analysis in crude oil
0.0504% (sampling analysis), one hour water injection rate percentage of water filling (water for being measured according to flowmeter and defeated that is 0.6267%
Oil mass is calculated), water content is obtained as 0.6684% by sampling analysis in test process, final sampling analysis and reality
The deviation of water injection rate be -0.0087% (0.6684-0.6267-0.0504), this meets the requirement of international standard highest level.
The system is by the use more than 8 years, and stable, since putting into operation, sampling 10L or so, operates 10000 daily daily
Repeatedly, primary sample 1mL is often acted.
This example improves credibility, accuracy, repeatability, the stability of on-line period system through on probation, beneficial in the future
Safeguard, many-sided advantage such as maintenance, and it is compact-sized, installation is simple, convenient transportation, it is possible to achieve outdoor sledge installing is put, and is saved
Space and operation operation room are saved.
Preferred embodiment of the present utility model is the foregoing is only, is not limited to the utility model, for this
For the technical staff in field, the utility model can have various modifications and variations.It is all in the spirit and principles of the utility model
Within, any modification, equivalent substitution and improvements made etc., it should be included within the scope of protection of the utility model.
Claims (10)
1. a kind of oil pipeline on-line period detection means, it is characterised in that one section of bypass (8), institute are provided with main pipeline
The arrival end for stating bypass (8) connects sampling probe (1), and the sampling probe (1) accesses main pipeline, and sampling probe (1) is followed by branch road A
With filter and sampling pump are equipped with branch road B, the branch road A and branch road B, branch road A and branch road B outlet merge into a pipe
Road, and connect sampling loop (32) and spray circuits (76) respectively after joint, wherein the spray circuits (76) are through nozzle
(31) main pipeline is accessed；
The entrance of the sampling loop (32) connects branch road C and branch road D, the branch road C and branch road D after on-line densimeter (36)
On be equipped with sampling control valve A, the branch road C and branch road D outlet and merge into a pipeline, and be sequentially connected in series after joint
Pressure transmitter (55), temperature transmitter (56) and flowmeter (57) import main pipeline afterwards；
Branch road C and the sampled control valves of branch road D are connected together as pipeline E, the entrance connection liquid separation triple valve of the pipeline E
(47), sample reception tank A (49) and sample reception tank B (50), the sample are connected respectively after the liquid separation triple valve (47)
Receiving tank A (49) and sample reception tank B (50) are respectively placed on weighing instrument A (51) and weighing instrument B (52), wherein, the pipe
It is other between line E entrance and liquid separation triple valve (47) to connect relief valve (48).
2. oil pipeline on-line period detection means according to claim 1, it is characterised in that branch road A's and branch road B sets
Put identical, be mutually redundant；Wherein, branch road A from entrance be sequentially connected in series process valve C (9), pressure gauge A (10), filter A (11),
Sampling pump A (13), pressure gauge B (14), process valve D (15) and check valve A (16)；Branch road B is sequentially connected in series technique valve from entrance
Door E (18), pressure gauge C (19), filter B (20), sampling pump B (22), pressure gauge D (23), process valve F (24) and check valve
B(25)。
3. oil pipeline on-line period detection means according to claim 2, it is characterised in that branch road C's and branch road D sets
Put identical, be mutually redundant；Wherein, branch road C is sequentially connected in series process valve L (41), sampling control valve A (42) and technique valve from entrance
Door M (43)；Branch road D is sequentially connected in series process valve N (44), sampling control valve B (45) and process valve O (46) from entrance；Branch road C
One section of bypass line is parallel with branch road D both sides, the bypass line is provided with process valve P (54).
4. oil pipeline on-line period detection means according to claim 1, it is characterised in that sampling probe (1) connects branch
Process valve A (3) and process valve B (5), process valve B (5) the connection branch road A have also been sequentially connected in series before road A and branch road B
With branch road B entrance；The other dynamic sampling valve (2) of catcher between sampling probe (1) and process valve A (3)；Process valve B (5) and branch
It is other between road A, branch road B inlet connections to meet purge valve A (6).
5. oil pipeline on-line period detection means according to claim 1, it is characterised in that the spray circuits (76)
Process valve G (28) and process valve H has also been sequentially connected in series between upper branch road A and branch road B joint and the nozzle (31)
(30)。
6. oil pipeline on-line period detection means according to claim 1, it is characterised in that the sampling loop (32)
Process valve I (35), on-line densimeter (36) and process valve K (38) are sequentially connected in series from entrance, the process valve K (38) is even
Connect branch road C and branch road D entrance；It is other between the entrance and process valve I (35) of sampling loop (32) to be connected to sewage draining valve (33)；
The pipeline F parallel connection technology valve J (37) that process valve I (35), on-line densimeter (36) and process valve K (38) are formed, it is described
Emptying valve (39) is connect by the junction of process valve J (37) and pipeline F outlets.
7. oil pipeline on-line period detection means according to claim 1, it is characterised in that the sampling loop outlet
End has also been sequentially connected in series purge valve B (27), process valve Q (59) and process valve R (61) before main pipeline is imported.
8. oil pipeline on-line period detection means according to claim 3, it is characterised in that filter A (11) both sides
Differential pressure switch A (12) in parallel, filter B (20) both sides parallel connection differential pressure switch B (21), the differential pressure switch A (12) and differential pressure are opened
B (21) is closed respectively through instrument cable access controller (74)；
Sampling pump A (13), sampling pump B (22), on-line densimeter (36), weighing instrument A (51), weighing instrument B (52), sampling control valve
A (42), sampling control valve B (45), liquid separation triple valve (47), pressure transmitter (55), temperature transmitter (56), flowmeter (57)
By instrument cable access controller (74), the controller (74) accesses master control system (75) through instrument cable.
9. oil pipeline on-line period detection means according to claim 1, it is characterised in that the sampling probe (1)
Main pipeline center is stretched into main pipeline central lower 0.1D position, wherein, D is the diameter of main pipeline；
The nozzle (31) is hollow straight tube, the bottom lock of the nozzle (31) and is combined with main pipeline bottom, described hollow
It is empty that the outer wall of straight tube is uniformly provided with several sprays.
10. oil pipeline on-line period detection means according to claim 2, it is characterised in that the bypass (8), spray
It is emitted back towards on road (76) and sampling loop and is equipped with electric tracing thermal insulation part；
Sampling pump B (22) on the sampling pump A (13) and branch road B uses frequency conversion centrifugal pump；
The metal screen in filter B (20) on the filter A (11) and branch road B is provided with magnetic absorption device.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114184709A (en) * | 2021-12-22 | 2022-03-15 | 新疆新特晶体硅高科技有限公司 | Online chlorosilane detection device and method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114184709A (en) * | 2021-12-22 | 2022-03-15 | 新疆新特晶体硅高科技有限公司 | Online chlorosilane detection device and method |
| CN114184709B (en) * | 2021-12-22 | 2024-01-26 | 新疆新特晶体硅高科技有限公司 | Chlorosilane on-line detection device and method |
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| CP03 | Change of name, title or address |
Address after: 100007 Beijing, Dongzhimen, North Street, No. 9, No. Co-patentee after: China Petroleum Pipeline Engineering Co.,Ltd. Patentee after: CHINA NATIONAL PETROLEUM Corp. Co-patentee after: DESIGN BRANCH OF CHINA PETROLEUM PIPELINE ENGINEERING Corp. Address before: 100120 Beijing Xicheng District six laying Kang Co-patentee before: China Petroleum Pipeline Engineering Co.,Ltd. Patentee before: China National Petroleum Corp. Co-patentee before: DESIGN BRANCH OF CHINA PETROLEUM PIPELINE ENGINEERING Corp. |
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Effective date of registration: 20190911 Address after: 100007 Beijing, Dongzhimen, North Street, No. 9, No. Co-patentee after: China Petroleum Pipeline Engineering Co.,Ltd. Patentee after: CHINA NATIONAL PETROLEUM Corp. Co-patentee after: CHINA PETROLEUM PIPELINE ENGINEERING Corp. Address before: 100007 Beijing, Dongzhimen, North Street, No. 9, No. Co-patentee before: China Petroleum Pipeline Engineering Co.,Ltd. Patentee before: CHINA NATIONAL PETROLEUM Corp. Co-patentee before: DESIGN BRANCH OF CHINA PETROLEUM PIPELINE ENGINEERING Corp. |