CN208596057U - Closed variable displacement crude sampler - Google Patents
Closed variable displacement crude sampler Download PDFInfo
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- CN208596057U CN208596057U CN201821238459.5U CN201821238459U CN208596057U CN 208596057 U CN208596057 U CN 208596057U CN 201821238459 U CN201821238459 U CN 201821238459U CN 208596057 U CN208596057 U CN 208596057U
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Abstract
The utility model discloses closed variable displacement crude samplers, including motor-driven valve, gear pump, hydraulic station, sampling check valve, sampling actuator, sampling regulating valve, enclosed sampling cylinder, displacement sensor, setting-out valve and outlet shutoff valve；Motor-driven valve, gear pump and outlet shutoff valve are sequentially communicated by main line；Enclosed sampling cylinder includes cylinder body and piston rod；Cylinder body both ends are respectively equipped with the inlet and outlet and extrusion mouth being connected to cylinder interior.The utility model proposes a kind of closed variable displacement crude sampler, for traditional automatic sampling, sampling efficiency is higher, and sample is more standby representative, and labor intensity is lower；Using forced circulation circuit, instantaneous acquiring oil sample, sampling moment no pressure leaks, and the perfect choke preventing function of sampling system enhances road ability of the crude oil in system.
Description
Technical field
The utility model relates to technical field of energy equipment, more particularly to a kind of closed variable displacement crude oil sampling
Device.
Background technique
The main purpose of crude oil sampling is that the representative sample taken to it is analyzed, and measures its composition, water and precipitating
The physical parameters such as the index of quality such as object content or density, viscosity, vapour pressure.And it samples and needs the representational sample of collection in worksite
Product finally determine the parameters such as bulk density and water content by lab analysis, and in this, as the foundation that oil mass calculates.If chemical examination
Sample is without representativeness, even if being operated using advanced assay equipment and meticulous assay, can also represent because of sampling
Property problem and lead to mistake result of laboratory test, cause the erroneous judgement of batch oil quality, to oil product produce and sell and use bring it is unfavorable
It influences, or even causes economic loss, cause metering dispute.It can be seen that sampling is the chemical examination indivisible first term process of work
And important link, it is to guarantee the accurate precondition of result of laboratory test.
Currently, both at home and abroad there are two types of crude oil pipeline sampling methods: one is hand sample methods, are suitable for all kinds of containers (such as
Oil tank, tank truck etc.) and pipeline；Another kind is automatic sampling method, is primarily adapted for use in pipeline sampling (such as Crude-oil Pipeline, original
Oily boat line etc.).Hand sample method has some disadvantages: first is that by crude Treatment technique Parameters variation and transport oil condition shadow
It rings；Second is that timing acquiring point sample, sample interval are longer；Third is that being easily affected by human factors.These disadvantages all easily cause
Sample representativeness problem causes the dispute to oil quality and metric results.Automatic sampling method uses pipeline Autosampler, can
To overcome the shortcomings of hand sample, realizes high frequency time, short interval, continuous automatic equal proportion sampling, guarantee that samples taken has one
Fixed representativeness, and the labor intensity of operator is alleviated, but existing automatic sampling method needs to guarantee that samples taken has
Standby representative and every sub-sampling requires manually to participate on condition that the sampling of high frequency time must be carried out, although compared to traditional people
Labor intensity when manual sampling operation is alleviated for work sampling, but there is no reduce for the artificial frequency for participating in sampling.
Utility model content
The utility model aims to solve at least one of the technical problems existing in the prior art.For this purpose, the utility model mentions
Gone out closed variable displacement crude sampler, including motor-driven valve, gear pump, hydraulic station, sampling check valve, sampling actuator,
Sample regulating valve, enclosed sampling cylinder, displacement sensor, setting-out valve and outlet shutoff valve；
The motor-driven valve, gear pump and outlet shutoff valve are sequentially communicated by main line；The motor-driven valve is close to the master
The arrival end of pipeline is arranged；The outlet shutoff valve is arranged close to the outlet end of the main line；
The first bye-pass is communicated between the gear pump and outlet shutoff valve of the main line；The sampling check valve takes
Sample actuator, sampling regulating valve and setting-out valve are sequentially arranged on first bye-pass；The hydraulic station and the sampling execute
Device connection；
The enclosed sampling cylinder includes cylinder body and piston rod；The cylinder body both ends be respectively equipped be connected to cylinder interior into
Outlet and extrusion mouth；The piston rod is connect with institute's displacement sensors, and institute's displacement sensors are for measuring the piston
The throw of lever；The inlet and outlet is in setting-out valve and samples the part between regulating valve by pipeline and first bye-pass to be connected
It is logical；
The second bye-pass is also communicated between the first bye-pass and outlet shutoff valve of the main line；Second branch pipe
Road end is connected to the extrusion mouth of the enclosed sampling cylinder.
It further, further include third bye-pass, anti-condensation case and anti-condensation valve；The third bye-pass is connected to the supervisor
Between the motor-driven valve and gear pump on road；The anti-condensation valve and anti-condensation case are successively connected to the third bye-pass.
Further, electric tracing and temperature sensor are equipped in the anti-condensation case.
It further, further include sampling pressure table；The sampling pressure table is set to pipeline and institute at the inlet and outlet
State the point of intersection of the first bye-pass connection.
It further, further include sampling safety valve；The sampling safety valve and first bye-pass are in sampling pressure
Part between table and setting-out valve is connected to.
It further, further include hydraulic gage and Hydraulic Relief Valve；The Hydraulic Relief Valve is connected to the hydraulic station；
The hydraulic gage is connected between the Hydraulic Relief Valve and the hydraulic station.
It further, further include suction flange and filter；The suction flange and the filter are set to the supervisor
The arrival end on road.
It further, further include Outlet check valves and outlet(discharge) flange；The Outlet check valves and the outlet(discharge) flange are set to
The outlet end of the main line.
It further, further include master control system；The master control system with respectively can control panel electric signal communication.
It further, further include the sampling bottle for being set to first bye-pass end.
The utility model proposes a kind of closed variable displacement crude sampler, due to being set using enclosed sampling cylinder
Meter, so that can be stored in enclosed sampling cylinder from the sample taken out in crude oil pipe, sample component will not volatilize, between can carrying out repeatedly
Every sampling, sample is more representative, and the amount for sample to the sampling bottle released from enclosed sampling cylinder is controllable, and sample time can
It adjusts, for traditional automatic sampling, sampling efficiency is higher, and sample is more standby representative, and labor intensity is lower；And it is logical
Sample capacity in enclosed sampling cylinder can be controlled at any time by crossing displacement sensor；And it is equipped with anti-condensation case and is used suitable for low temperature environment；
And forced circulation circuit is used, instantaneous acquiring oil sample, sampling moment no pressure leaks, the perfect choke preventing function of sampling system,
Enhance road ability of the crude oil in system.
Detailed description of the invention
Fig. 1 is the principle schematic diagram of closed variable displacement crude sampler provided by the utility model；
Wherein, 1, motor-driven valve；2, gear pump；3, hydraulic station；4, check valve is sampled；5, actuator is sampled；6, sampling is adjusted
Valve；7, enclosed sampling cylinder；8, displacement sensor；9, setting-out valve；10, outlet shutoff valve；11, the first bye-pass；12, the second branch pipe
Road；13, third bye-pass；14, cylinder body；15, piston rod；16, inlet and outlet；17, extrusion mouth；18, anti-condensation case；19, anti-condensation valve；
20, electric tracing；21, temperature sensor；22, sampling pressure table；23, hydraulic gage；24, Hydraulic Relief Valve；25, import method
It is blue；26, filter；27, sampling bottle；28, main line；29, safety valve is sampled；30, Outlet check valves；31, outlet(discharge) flange.
Specific embodiment
The embodiments of the present invention are described below in detail, the example of embodiment is shown in the accompanying drawings, wherein from beginning to end
Same or similar label indicates same or similar element or element with the same or similar functions.Below with reference to attached
The embodiment of figure description is exemplary, and is only used for explaining the utility model, and should not be understood as limiting the present invention.
In the description of the present invention, it should be understood that term " center ", "upper", "lower", "front", "rear",
The orientation or positional relationship of the instructions such as "left", "right", "vertical", "horizontal", "top", "bottom" "inner", "outside" is based on attached drawing institute
The orientation or positional relationship shown, is merely for convenience of describing the present invention and simplifying the description, rather than indication or suggestion is signified
Device or element must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as to this is practical
Novel limitation.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " is pacified
Dress ", " connected ", " setting " shall be understood in a broad sense, for example, it may be being fixedly linked, being arranged, may be a detachable connection, set
It sets, or is integrally connected, is arranged.For the ordinary skill in the art, it can understand that above-mentioned term exists with concrete condition
Concrete meaning in the utility model.
As shown in Figure 1, the utility model provides closed variable displacement crude sampler, including motor-driven valve 1, gear pump
2, hydraulic station 3, sampling check valve 4, sampling actuator 5, sampling regulating valve 6, enclosed sampling cylinder 7, displacement sensor 8, setting-out valve 9
And outlet shutoff valve 10；
Motor-driven valve 1, gear pump 2 and outlet shutoff valve 10 are sequentially communicated by main line 28；Motor-driven valve 1 is close to main line 28
Arrival end setting；Outlet shutoff valve 10 is arranged close to the outlet end of main line 28；
The first bye-pass 11 is communicated between the gear pump 2 and outlet shutoff valve 10 of main line 28；Sampling check valve 4 takes
Sample actuator 5, sampling regulating valve 6 and setting-out valve 9 are sequentially arranged on the first bye-pass 11；Hydraulic station 3 and sampling actuator 5 connect
It is logical；
Enclosed sampling cylinder 7 includes cylinder body 14 and piston rod 15；14 both ends of cylinder body, which are respectively equipped with, to be connected to inside cylinder body 14
Inlet and outlet 16 and extrusion mouth 17；Piston rod 15 is connect with displacement sensor 8, and displacement sensor 8 is for measuring 15 row of piston rod
Journey；Inlet and outlet 16 is in setting-out valve 9 with the first bye-pass 11 and samples the part between regulating valve 6 and is connected to by pipeline；
The second bye-pass 12 is also communicated between the first bye-pass 11 and outlet shutoff valve 10 of main line 28；Second branch pipe
12 end of road is connected to the extrusion mouth 17 of enclosed sampling cylinder 7.
It further include third bye-pass 13, anti-condensation case 18 and anti-condensation valve 19；Third bye-pass 13 is connected to the electricity of main line 28
Between dynamic valve 1 and gear pump 2；Anti-condensation valve 19 and anti-condensation case 18 are successively connected to third bye-pass 13.Electricity is equipped in anti-condensation case 18
Heat tracing 20 and temperature sensor 21.
It further include sampling pressure table 22；The pipeline and the first bye-pass 11 that sampling pressure table 22 is set at inlet and outlet 16 connect
Logical point of intersection.It further include sampling safety valve 29；Sampling safety valve 29 is in sampling pressure table 22 and puts with the first bye-pass 11
Part connection between sample valve 9.
It further include hydraulic gage 23 and Hydraulic Relief Valve 24；Hydraulic Relief Valve 24 is connected to hydraulic station 3；Hydraulic gage
23 are connected between Hydraulic Relief Valve 24 and hydraulic station 3.
It further include suction flange 25 and filter 26；Suction flange 25 and filter 26 are set to the arrival end of main line 28.
It further include Outlet check valves 30 and outlet(discharge) flange 31；Outlet check valves 30 and outlet(discharge) flange 31 are set to the outlet end of main line 28.
It further include master control system；Master control system with respectively can control panel (such as hydraulic station 3, gear pump 2, sampling adjust
Save valve 6 etc.) electric signal communication.It further include the sampling bottle 27 set on 11 end of the first bye-pass.
Due to the effect of the motor-driven valve 1 (being chosen as electrical ball valve) and outlet shutoff valve 10 that are arranged on main pipeline, can prevent
Sample is flow backwards or leakage；The max-flow being equal in main line 28 due to the inlet flow rate of sampling loop (i.e. the first bye-pass 11)
Speed can prevent turbulent flow, avoid the sedimentation of water.
Since displacement sensor 8 is arranged, and master control system (built-in timing module and processing module) is combined, when can be used
Between proportional sampling and flow proportional sample two kinds of sampling modes；Sample is automatically powered off after reaching sets requirement, is shut down, and prevents the sample that overflows
Phenomenon；For example, be arranged in single sample time by master control system, the displacement of power-on time and displacement sensor 8 and
The circulation of the inlet and outlet 16 of enclosed sampling cylinder 7 judges the sampling amount in single sample time；And pass through displacement sensor 8
It can obtain remaining sample size in enclosed sampling cylinder 7；Master control system includes Siemens S7-smart series of programmable logic control
Device (PLC) processed and the man-machine interface for using Siemens IE700 array of touch screen；Certainly, this specific sampling mode needs root
It is realized according to the specific programming of master control system, and this programming mode has been existing mature technology, therefore, is also repeated no more.
Closed variable displacement crude sampler concrete principle provided by the utility model is as follows: the arrival end of main line 28
It is connected to crude oil pipeline upstream, the outlet end of main pipeline and crude oil pipeline communicating downstream, certainly, this upstream and downstream is phase
For；When needing to fill sample into enclosed sampling cylinder 7, motor-driven valve 1 and outlet shutoff valve 10 are opened, allows main pipeline and crude oil
The flow velocity of pipeline is identical；Outlet shutoff valve 10 is closed, gear pump 2 is powered, and the sample (oil) in main line 28 enters the first branch pipe
It road 11, can not be reversed again after sample enters between sampling check valve 4 and sampling regulating valve 6 due to sampling the effect of check valve 4
It flows in main line 28, therefore, when hydraulic station 3 drives sampling actuator 5 to work, sampling check valve 4 and sampling regulating valve 6
Between sample be extruded and pass through inlet and outlet 16 and enter in the cylinder body 14 of enclosed sampling cylinder 7, this process is completed primary close
Close sampling 7 sample of cylinder filling, i.e., the primary sample for relatively traditional sampling method, the sample storage only obtained during this
In in enclosed sampling cylinder 7, and also it is not in sampling bottle 27.Later, motor-driven valve 1 can close, and gear pump 2 can power off.
After the time of one end, i.e., until setting sample time, repeatedly aforesaid operations, completion are primary closed again next time
Sample the filling of 7 sample of cylinder；Successively repeatedly, until sample filling is full in enclosed sampling cylinder 7, this process needs displacement sensor 8 to examine
It surveys；The sample filling process of above-mentioned entire enclosed sampling cylinder 7 can be fully automated progress, without manually scene being gone to be operated,
It is only to press button (remote controlled) several times that worker, which needs the possibility operated,.
After the sample filling in enclosed sampling cylinder 7 is full, and when needing the sampling in just sincere justice, that is, need to take closed
When sample in sample cylinder 7 is expelled in sampling bottle 27, gear pump 2 is powered, but hydraulic station 3 does not work, and outlet shutoff valve 10 is closed,
Entered again by extrusion mouth 17 in the cylinder body 14 of enclosed sampling cylinder 7 to which the sample in main line 28 enters the second bye-pass 12,
And it is located at the piston other side of piston rod 15, it is separated with required sample by the piston of piston rod 15；When gear pump 2 continues working
When, the oil in main line 28 is squeezed into cylinder body 14 by continual by extrusion mouth 17, so that piston rod 15 is mobile, by cylinder body
The 14 really necessary sample wanted in 15 other side of piston rod squeezes out cylinder body 14 from inlet and outlet 16, opens setting-out valve 9, sample is direct
It flows into sampling bottle 27, completes primary sample.
Since the volume of usual sampling bottle 27 is less than the volume of enclosed sampling cylinder 7, if desired by enclosed sampling cylinder 7
Interior sample takes, it may be necessary to repeatedly sampled, and the interval time between this multiple sampling, enclosed sampling cylinder 7 again can
It is automatic to carry out sample filling, so that the sample that sampling bottle 27 takes out is more representative.
While there has been shown and described that the embodiments of the present invention, it will be understood by those skilled in the art that:
These embodiments can be carried out with a variety of variations, modification, replacement in the case where not departing from the principles of the present invention and objective
And modification, the scope of the utility model are defined by the claims and their equivalents.
Claims (10)
1. a kind of closed variable displacement crude sampler, which is characterized in that single including motor-driven valve, gear pump, hydraulic station, sampling
To valve, sampling actuator, sampling regulating valve, enclosed sampling cylinder, displacement sensor, setting-out valve and outlet shutoff valve；
The motor-driven valve, gear pump and outlet shutoff valve are sequentially communicated by main line；The motor-driven valve is close to the main line
Arrival end setting；The outlet shutoff valve is arranged close to the outlet end of the main line；
The first bye-pass is communicated between the gear pump and outlet shutoff valve of the main line；The sampling check valve, sampling are held
Row device, sampling regulating valve and setting-out valve are sequentially arranged on first bye-pass；The hydraulic station and the sampling actuator connect
It is logical；
The enclosed sampling cylinder includes cylinder body and piston rod；The cylinder body both ends are respectively equipped with the disengaging sample being connected to cylinder interior
Mouth and extrusion mouth；The piston rod is connect with institute's displacement sensors, and institute's displacement sensors are for measuring the piston rod row
Journey；The inlet and outlet is in setting-out valve with first bye-pass and samples the part between regulating valve and is connected to by pipeline；
The second bye-pass is also communicated between the first bye-pass and outlet shutoff valve of the main line；The second bye-pass end
End is connected to the extrusion mouth of the enclosed sampling cylinder.
2. closed variable displacement crude sampler according to claim 1, which is characterized in that further include third branch pipe
Road, anti-condensation case and anti-condensation valve；The third bye-pass is connected between the motor-driven valve and gear pump of the main line；It is described anti-condensation
Valve and anti-condensation case are successively connected to the third bye-pass.
3. closed variable displacement crude sampler according to claim 2, which is characterized in that be equipped in the anti-condensation case
Electric tracing and temperature sensor.
4. closed variable displacement crude sampler according to claim 1, which is characterized in that further include sampling pressure
Table；The point of intersection that the pipeline that the sampling pressure table is set at the inlet and outlet is connected to first bye-pass.
5. closed variable displacement crude sampler according to claim 4, which is characterized in that further include sampling safety
Valve；The sampling safety valve is in the part between sampling pressure table and setting-out valve with first bye-pass and is connected to.
6. closed variable displacement crude sampler according to claim 1, which is characterized in that further include hydraulic gage
And Hydraulic Relief Valve；The Hydraulic Relief Valve is connected to the hydraulic station；The hydraulic gage is connected to the hydraulic overflow
Between valve and the hydraulic station.
7. closed variable displacement crude sampler according to claim 1, which is characterized in that further include suction flange and
Filter；The suction flange and the filter are set to the arrival end of the main line.
8. closed variable displacement crude sampler according to claim 1, which is characterized in that further include Outlet check valves
And outlet(discharge) flange；The Outlet check valves and the outlet(discharge) flange are set to the outlet end of the main line.
9. described in any item closed variable displacement crude samplers according to claim 1~8, which is characterized in that further include
Master control system；The master control system with respectively can control panel electric signal communication.
10. closed variable displacement crude sampler according to claim 9, which is characterized in that further include set on described
The sampling bottle of first bye-pass end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821238459.5U CN208596057U (en) | 2018-08-02 | 2018-08-02 | Closed variable displacement crude sampler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821238459.5U CN208596057U (en) | 2018-08-02 | 2018-08-02 | Closed variable displacement crude sampler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208596057U true CN208596057U (en) | 2019-03-12 |
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ID=65604190
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821238459.5U Active CN208596057U (en) | 2018-08-02 | 2018-08-02 | Closed variable displacement crude sampler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208596057U (en) |
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2018
- 2018-08-02 CN CN201821238459.5U patent/CN208596057U/en active Active
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