CN107984626A - The electromechanical configuration design of reinforcing oil well liquid additive automatic distribution system LADS equipment - Google Patents
The electromechanical configuration design of reinforcing oil well liquid additive automatic distribution system LADS equipment Download PDFInfo
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- CN107984626A CN107984626A CN201710659613.XA CN201710659613A CN107984626A CN 107984626 A CN107984626 A CN 107984626A CN 201710659613 A CN201710659613 A CN 201710659613A CN 107984626 A CN107984626 A CN 107984626A
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- 239000007788 liquid Substances 0.000 title claims abstract description 45
- 239000000654 additive Substances 0.000 title claims abstract description 39
- 230000000996 additive effect Effects 0.000 title claims abstract description 39
- 238000009826 distribution Methods 0.000 title claims abstract description 11
- 239000003129 oil well Substances 0.000 title claims abstract description 9
- 230000003014 reinforcing effect Effects 0.000 title claims abstract description 9
- 238000013461 design Methods 0.000 title claims description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 22
- 239000012530 fluid Substances 0.000 claims abstract description 21
- 238000003756 stirring Methods 0.000 claims abstract description 10
- 239000000203 mixture Substances 0.000 claims abstract description 8
- 239000004568 cement Substances 0.000 claims abstract description 4
- 239000002002 slurry Substances 0.000 claims abstract 9
- 239000011083 cement mortar Substances 0.000 claims abstract 3
- 239000013505 freshwater Substances 0.000 claims abstract 2
- 239000003921 oil Substances 0.000 claims description 56
- 239000010720 hydraulic oil Substances 0.000 claims description 24
- 150000001875 compounds Chemical class 0.000 claims description 17
- 229910001220 stainless steel Inorganic materials 0.000 claims description 14
- 239000010935 stainless steel Substances 0.000 claims description 14
- 239000002828 fuel tank Substances 0.000 claims description 10
- 238000010438 heat treatment Methods 0.000 claims description 9
- 230000008878 coupling Effects 0.000 claims description 8
- 238000010168 coupling process Methods 0.000 claims description 8
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- DQECFVGMGBQCPA-GLCLSGQWSA-N 2,2-dimethylpropanoyloxymethyl (2s,5r,6r)-6-[[(2r)-2-amino-2-phenylacetyl]amino]-3,3-dimethyl-7-oxo-4-thia-1-azabicyclo[3.2.0]heptane-2-carboxylate;hydron;chloride Chemical compound Cl.C1([C@@H](N)C(=O)N[C@H]2[C@@H]3N(C2=O)[C@H](C(S3)(C)C)C(=O)OCOC(=O)C(C)(C)C)=CC=CC=C1 DQECFVGMGBQCPA-GLCLSGQWSA-N 0.000 claims description 2
- 229910000831 Steel Inorganic materials 0.000 claims description 2
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- 208000016063 arterial thoracic outlet syndrome Diseases 0.000 claims description 2
- 238000005422 blasting Methods 0.000 claims description 2
- 230000000903 blocking effect Effects 0.000 claims description 2
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- 239000003638 chemical reducing agent Substances 0.000 claims description 2
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- 238000011109 contamination Methods 0.000 claims description 2
- 239000000498 cooling water Substances 0.000 claims description 2
- 230000007797 corrosion Effects 0.000 claims description 2
- 238000005260 corrosion Methods 0.000 claims description 2
- 230000000694 effects Effects 0.000 claims description 2
- 239000003344 environmental pollutant Substances 0.000 claims description 2
- 239000000945 filler Substances 0.000 claims description 2
- -1 filter Substances 0.000 claims description 2
- 238000001914 filtration Methods 0.000 claims description 2
- 230000017525 heat dissipation Effects 0.000 claims description 2
- 239000012535 impurity Substances 0.000 claims description 2
- 238000007726 management method Methods 0.000 claims description 2
- 239000002184 metal Substances 0.000 claims description 2
- 238000002156 mixing Methods 0.000 claims description 2
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- 231100000719 pollutant Toxicity 0.000 claims description 2
- 238000005086 pumping Methods 0.000 claims description 2
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28C7/00—Controlling the operation of apparatus for producing mixtures of clay or cement with other substances; Supplying or proportioning the ingredients for mixing clay or cement with other substances; Discharging the mixture
- B28C7/04—Supplying or proportioning the ingredients
- B28C7/0404—Proportioning
- B28C7/0418—Proportioning control systems therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28C7/00—Controlling the operation of apparatus for producing mixtures of clay or cement with other substances; Supplying or proportioning the ingredients for mixing clay or cement with other substances; Discharging the mixture
- B28C7/0007—Pretreatment of the ingredients, e.g. by heating, sorting, grading, drying, disintegrating; Preventing generation of dust
- B28C7/0023—Pretreatment of the ingredients, e.g. by heating, sorting, grading, drying, disintegrating; Preventing generation of dust by heating or cooling
- B28C7/003—Heating, e.g. using steam
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28C7/00—Controlling the operation of apparatus for producing mixtures of clay or cement with other substances; Supplying or proportioning the ingredients for mixing clay or cement with other substances; Discharging the mixture
- B28C7/04—Supplying or proportioning the ingredients
- B28C7/12—Supplying or proportioning liquid ingredients
Abstract
The invention belongs to oil gas field engineering machinery field, there is provided a kind of reinforcing oil well liquid additive automates distribution system LADS digital devices.LADS digital devices are mainly made of feeding system (4 agitator tanks), metering pump system 4, hydraulic power system and electronic platform scale and 4 part of charging basket.Fluid motor-driven screw pump, sucks the suction inlet that liquid additive is pumped into mix cement slurry clarified water pump out of 4 tanks respectively, and liquid additive is added in cement mortar by the clear water of mixture.When general device works, after the additive types of required addition and required proportioning are input to PLC controller by operator, open valve NO.1 N0.2, close valve N0.3, set work order, start blender, liquid additive started to stir in fluid reservoir, circulated, fresh water can be automatically injected slurry system.After the clarified water pump of well cementing operation is stopped, system will be automatically stopped liquid additive pump and close corresponding valve.
Description
Technical field
The invention belongs to oil gas field engineering machinery field, there is provided a kind of reinforcing oil well liquid additive automates distribution system
The electromechanical configuration design of LADS equipment.
Background technology
Offshore oil probing and exploitation are very high to the cementing quality requirement of drilling well, if well cementing operation is before the deadline
Equipment cannot effectively supply well cementation additive, will cause the completion accident of similar " bowel lavage ", cause the huge damage of human, financial, and material resources
Lose, and pollution of marine environment.In order to control the solidification rate of cement, rate-of-loss of coolant, thickening time, it is desirable to which cementing equipment adds
Add agent electromechanical integration complexes that there is very high the degree of automation.Therefore, it can be said that automatic the matching somebody with somebody of liquid well cementation additive
Material system LADS equipment is to determine one of vital equipment of well cementing operation quality.
China Petroleum well cementing operation is chronically at extensive state, and the required precision to additive formulations is not high, makes
The no market of development of LADS equipment.But the deep development of the probing and exploitation with petroleum industry, onshore oil field is to hypotonic
Thoroughly, volatile oil reservoir marches, and for offshore oil to deep-water developments, the requirement to environmental protection can be higher and higher.China's oil drilling
Business is to international market, while drive oing boldly, drilling engineering also requires the quality of well cementing operation higher and higher.In some states
In border drilling well bidding engineering, whether drilling crew, which possesses LADS equipment, has become the key won the title and got the upper hand of.Therefore, development has
The well cementation additive automatic batching system (abbreviation LADS) of independent intellectual property right, can lift China's tradition drilling engineering equipment
Construction quality.
The content of the invention
The present invention provides a kind of reinforcing oil well liquid additive automation distribution system LADS equipment electromechanical configuration design.Its
It is as follows to install and use condition：
(1) main power source：460AVC, three-phase five-wire mode power supply.
(2) compressed air：Pressure 0.8Mpa；Flow 0.5M3/min.
(3) steam：Pressure 0.2Mpa；Flow 60kg/h.
(4) liquid filling agent：4 kinds of species.
(5) metering pump：Precision：± 0.3%~0.5% (being determined by selection pump type).
The present invention provides a kind of reinforcing oil well liquid additive automation distribution system LADS equipment, the electromechanical configuration of its equipment
It is described as follows with technology：
Feeding system (agitator tank 4):Stainless steel tank body, welding structure.Hydraulic motor drive is installed in removable type cover plate
Dynamic agitating device, stirring, homogenizing for material.Steam is installed in order to meet that user uses in cold district, in tank to add
Hot Stainless Steel Coil, fluid temperature is detected by the thermal resistance installed in tank in real time, automatic according to design temperature and control steam pipe
On the open and close of pneumatic stopping valve heated and kept the temperature.Temperature error can ensure within ± 5 DEG C.Heating to agitator tank
On the one hand compound viscosity can be reduced, prevents the blocking for causing metering pump or transfer pipeline, reduce power of agitator and stirring
Uniformity；On the other hand since the viscosity of compound can be controlled, so as to improve measuring accuracy.When user need not to compound into
Row heating when, only need to by steam pipe hand sluice valve close or close pneumatic stopping valve, or will setting heating-up temperature be set to it is low
Value, stops heating.Cleaning water pipe is also equipped with agitator tank, is controlled by hand sluice valve.When need clean agitator tank, metering
When pump and pipeline, the cleaning of hand valve can be opened manually.Stirring tank volume and blender length see the table below 1：
1 feeding system of table configures and technical indicator
* note：Such as user's needs, blender volume can be designed as 375gal (1419.4L), corresponding blender length by user's requirement
Spend 62.54in (1.588m)
Metering pump system 4:Below every agitator tank, metering pump is installed.Metering pump is driven by oil motor, passes through electricity
Hydraulic servo controls oil motor rotating speed, and controller changes valve opening to control measuring accuracy by voltage signal.Count at the same time
Encoder is installed in amount pump shaft, the actual speed of metering pump is detected, compared with rotating speed needed for calculating.Measure pump discharge
Entered by the high-pressure rubber hose with quick coupling and hand sluice valve spare in blending tank.In order to reduce in metering pump export pipeline
Influence of the heels to measuring accuracy, metering pump discharge pneumatic stopping valve is installed, close to the valve be provided with compressed air or
High pressure water cleans pipe, and pneumatic stopping valve, control cleaning action are equally provided with pipe is cleaned.Completed when every kind of compound measures
Afterwards, heels in pipe is cleaned up by compressed air or high pressure water.Due to different compound and operation temperature, compound
Viscosity, proportion are different, and metering pumpage will change, and (viscosity increases, and the volumetric efficiency of pump declines；Operation temperature raises, and fills out
Agent viscosity is added to decline)；Metering pump discharge pressure also has an impact measuring accuracy.In order to ensure measuring accuracy, in system debug
When viscosity and pressure correction carried out according to different compounds, different temperatures, for user's correction coefficient or curve, or by computer
Storage is corrected (by user's determination mode) automatically.
Hydraulic system:Hydraulic system provides power source for whole feed proportioning system.All it is to pass through liquid including stirring, measuring pumping
Pressure motor drives.Fluid motor-driven has its small (under identical driving power compared with motor reducer), starting torque
Greatly, the features such as speed governing facilitates.The duplex pump that the system is formed using gear pump and plunger pump, is driven, small tooth by a motor
Wheel pump drives blender oil motor, while provides hydraulic oil for big plunger pump, improves the oil absorption of column pump.Gear pump passes through
The rotation of hand-operated valve manual control blender oil motor on oil pipe.Plunger pump provides the hydraulic oil of metering pump driving oil motor,
Motor rotary speed is automatically controlled by solenoid-operated proportional servo valve, it is also possible to manual needle valve manual control.Hydraulic pressure well cuts in order to prevent
Infringement to Hydraulic Elements, filter is provided with hydraulic pump oil inlet pipe.Cooler can be according to the thermometric on hydraulic oil pipe
The temperature of element control oil, is provided with overflow valve in the outlet of pump, prevents hydraulic system superpressure.Hydraulic system includes：Motor, tooth
Wheel pump, plunger pump, metering pump drive motor, electromagnetic servo valve, manual needle valve, fuel tank, filter, hydraulic oil cooler, pressure
Sensor, temperature element, agitator drive motor and its fluid pressure line etc..In order to reduce system dimension, most hydraulic valves are adopted
With modularized design, while facilitate the extension of system.Each oil pipe is connected using the high-pressure rubber pipe of quick coupling, easy to repair.Liquid
The configuration such as table 2 below of each element of pressure system：
(1) screw metering pump 4
2 hydraulic system metering pump of table configures and technical indicator
* note, operating pressure are calculated by the long 50ft of metering pump export pipeline (15.24m).Such as pipeline lengthening, pressure needs to increase.
(2) screw metering pump drive gear oil motor 4
3 hydraulic system metering pump of table driving configuration and technical indicator
(3) stirrer-driven oil motor 4
Oil motor maximum speed about 180rpm, model Ross17.7cu in/motor (290ml/ turns), the place of production U.S..
(4) gear pump 1
Maximum pressure：3000Psi (21MPa), operating pressure：2000psi(14MPa).
The pump is mainly used for driving blender oil motor and provides 20psi (0.14MPa) hydraulic oil for axial variable displacement plunger pump,
Discharge capacity >=46ml/ turns.
(5) PVPC types axial variable displacement plunger pump 1
Original system maximum pressure 2500psi (17.5MPa), 700~1000psi of operating pressure (4.9~7.0MPa).Select pump
Model：X2E-L-4-046/D, discharge capacity：46ml/ turns；Maximum pressure： 260ba(26MPa)r；Rated operating pressure：210bar
(21MPa).The place of production：Italian ATOS companies.
(6) electro-hydraulic proportional servo valve 4
Solenoid-operated proportional servo valve control is by the hydraulic fluid flow rate of hydraulic metering pump drive motor, so that oil motor rotating speed is controlled,
Reach accurate metering.Every metering pump drive motor matches somebody with somebody a proportional servo valve.Servo valve model BD-15CCCN B2.5, BD-
15CCCN B15 and BD-15CCCN B20 control respectively 1#, 2,3# and 4# metering pump drive motor, the control of proportional servo valve
Device (amplifier) uses interior explosion-proof type, 12 4s length 12m of 24DVC, cable EHC.Model PCM600S.
(7) filter 1
Filter is critical elements in hydraulic system.It can remove the pollutant in hydraulic oil, keep oil cleanliness, it is ensured that
The reliability of system element work.
Using stainless steel fibre filter, filter core sinters felt material using stainless steel superfine fibre, high with intensity, high temperature resistant,
Corrosion-resistant, contamination capacity is big, and filterability is good, and filter core can clean the features such as use repeatedly.
Filter model：YPH240ST-10W.
Technical performance：Flow：240L/min；10 μm of filtering accuracy；Pressure 4.2Mpa；Visual pressure difference indicator, indicates pressure difference 0.7
±0.07Mpa；- 10 DEG C~+100 DEG C of temperature；Filter core is pressure-resistant 21Mpa；Band by-passing valve, metal core.
(8) 1, cooler
During hydraulic work system, because of hydraulic pump, the volumetric loss of hydraulic motor and mechanical loss, or the pressure of control element and pipeline
The energy of the consumption such as power loss and liquid friction loss, almost all are converted into heat, make the temperature of hydraulic oil and Hydraulic Elements
Rise.If oil temperature is more than 80 DEG C, the normal work of hydraulic system will be seriously affected.The normal work of general provision hydraulic oil
Temperature is 15 DEG C~65 DEG C.Hydraulic oil is cooled down using cooler, makes it in prescribed limit.Go out in cooler hydraulic oil
The oily Thermistor Temperature Measurement element of installation, hydraulic fluid temperature can be observed by the thermometer in control panel on mouth pipeline.
Cooler uses domestic shell-and-tube heat exchanger, stainless steel welded structure.Hydraulic oil by shell side, cooling water by tube side,
Good heat dissipation effect, heat transfer coefficient are about：350~580W/ (M2 DEG C) heat exchange area 0.7M2, design pressure 1.6MPa.Pressure
Drop≤0.1MPa, model：2LQF1W types.
(9) 2, check valve
The direction of hydraulic oil is controlled, it is flowed from a direction.One of check valve makees counterbalance valve at the same time, makes variable
The entrance oil pressure of axial plunger pump is increased to 20psi (1.4Mpa), steady pressure.
Influence of 4 high temperature of table to Hydraulic Elements performance
(10) manual needle valve 4
For controlling blender oil motor rotating speed manually.
(11) 1, alternating current generator
Two coaxial mounted gear oil pumps and axial variable displacement plunger pump are driven by alternating current generator at the same time.
Technical parameter：40HP, 380~460DVC. three phase electric machine, 48A, 1800rpm, internal heater, is opened when stopping using
Dynamic heater heating motor, prevents condensed water.
(12) motor starter 1
Startup for motor.Installation electric heater in stainless steel inner cover, when system stalls, heater prevents condensed water
Into inside starter.Model FVNR.
(13) overflow valve 2
Make safety valve use, ensure that system is safe and reliable.
Relief valve set pressure 2500psi (17.5MPa) on axial variable displacement plunger pump export pipeline, maximum pressure：
3000psi (21MPa), flow：≥82.8L/min.
Overflow valve maximum pressure 3000psi (21MPa) on gear hydraulic pump export pipeline, setting pressure 2000psi
(14MPa)；Flow：≥82.8L/min.
(14) fuel tank
Open type oil tank, stainless steel welded structure, volume 20 gallons (75.7L).Fluid is by atmosphere pollution in order to prevent, on fuel tank top
Portion sets air cleaner, while doubles as pouring orifice.Fuel tank internal setting partition plate will be inhaled, oil return pipe separates, and circulate liquid stream, oil
Bubble in stream is separated and precipitated with impurity.In fuel tank lower curtate extreme lower position, drain oil, fluid and dirt when enabling to change oil are set
Successfully flowed out from drain oil.In order to observe the situation of the liquid level rising to tank filling and seen in system operation
See liquid level, be provided with liquid level gauge.Inner wall of oil tank blasting treatment, thoroughly removes dirt and welding slag.
Air-filter type：QUQ2, the overanxious precision of air：10μm；Air mass flow：1.0M3/min；Temperature range：- 20~+
100℃；The overanxious mesh of oil：15μm.
(15) quick coupling and high-pressure rubber pipe
For the ease of safeguarding, all hydraulic pipeline is connected with compound delivery pipe using quick coupling.Sebific duct is compiled using steel wire
Knit high-pressure rubber hose.
(16) pressure gauge and pressure meter switch
Indicate the pressure of each point in fluid pressure line.
Electronic platform scale and charging basket:It is used to artificial dispensing when electronic platform scale and charging basket are as emergent management use.When system goes out
During existing failure, in order not to influence to produce, discharge gate is equipped with each stirrer bottom.Hand valve can be opened and manually carry out dispensing.
Electronic platform scale is furnished with high accuracy Panther instrument, can show weight.
LADS equipment automation controls use the PLC control system of Mitsubishi Corporation of Japan FX2N series.Built in program capacity
8000 step RAM, maximum, which can expand to 16K, to be walked；The speed of service is high, 0.08 μ s/ of elementary instruction steps, using the μ of 1.52 μ s of instruction~100
S/ is walked, and high-speed counter counting rate is up to 60kHz；Special module enriches, and has simulation input output, and high-speed pulse input is fixed
Position, communication, networking module etc.；External communication is simplified, can be with peripheral device communication by installing function expansion board.
The structure and Functional Design for liquid additive automatic distribution system LADS equipment of cementing the well are as shown in Figure 2.
Brief description of the drawings
Fig. 1：LADS equipment operation principle schematic diagrams
Fig. 2：LADS equipment Top-Dowe design frame charts
Embodiment
Example 1：
The electromechanical configuration of table 5LADS systems and price [amount to：(domestic part assembles $ to 13.182 ten thousand yuan of $ of import parts assembling
6.3465 ten thousand yuan)
Claims (3)
1. the present invention provides a kind of reinforcing oil well liquid additive automation distribution system LADS equipment electromechanical configuration design, LADS
Equipment is mainly by feeding system (4 agitator tanks), metering pump system 4,4 part of hydraulic power system, electronic platform scale and charging basket
Composition.Liquid additive automatic distribution system LADS equipment of cementing the well is using the screw pump of fluid motor-driven respectively from 4 liquid
Suction liquid additive in additive tank, then liquid additive is pumped into the suction inlet of the clarified water pump of mix cement slurry, so
Liquid additive is just added in cement mortar by mixture clear water.During work, operator can be by the species of the additive of required addition
And required proportioning is input to PLC controller, and open valve NO.1 N0.2, close valve N0.3, set work order
Afterwards, start blender, liquid additive started to stir in fluid reservoir, circulated, at this time since valve N0.3 is closed storage tank
In liquid additive will not discharge, yet with valve NO.1st, N0.2 is open mode, and fresh water can inject automatic slurry system
System.When starting mix cement slurry, PLC controller by the flow value of the clear water flow meter read automatically in automatic slurry system,
After opening valve N0.3, closing valve N0.2, this liquid additive stops circulation, starts to be pumped into automatic slurry system
On clear water Pump Suction Nozzle, while the rotating speed of additive pump sends PLC controller to；PLC controller is also constantly read from the same time
The flow value of the clear water flow meter of dynamic slurry system, by the way that actually required additive capacity is calculated, then with by measuring
Screw rod pump tachomete calculate after additive capacity compare, if variant, send instruction change liquid additive pump turn
Speed, untill correct liquid additive amount can be pumped out.After the clarified water pump of well cementing operation is stopped, system will be automatic
Stop liquid additive pump and close corresponding valve.
Additionally, it is contemplated that the complexity of industry spot situation, system are also configured with manual operation system, when automatically controlling at work
When breaking down, operator can the corresponding valve of manual unlocking, start corresponding liquid additive pump, liquid additive is added
Enter into cement mortar.The discharge capacity of liquid additive, operator can pass through (or the control of the clear water flow that is set in automatic slurry system
The clear water flow that device flow meter instrument is shown), controlled by calculating the rotating speed of adjustment liquid additive pump, still, need spy
Not, it is emphasized that due to adding artificial observation and calculating factor, the precision of the additive amount of being pumped into can reduce during control manually.
2. reinforcing oil well liquid additive as claimed in claim 1 automates distribution system LADS equipment, it installs and uses bar
Part is as follows：(1) main power source：460AVC, three-phase five-wire mode power supply；(2) compressed air：Pressure 0.8Mpa；Flow 0.5M3/min；
(3) steam：Pressure 0.2Mpa；Flow 60kg/h；(4) liquid filling agent：4 kinds of species；(5) metering pump：Precision：± 0.3%~
0.5% (being determined by selection pump type).
3. reinforcing oil well liquid additive as claimed in claim 1 automates distribution system LADS equipment, its equipment electromechanics is matched somebody with somebody
Put and be described as follows with technology：
3.1 A feeding systems (agitator tank 4)
Stainless steel tank body, welding structure.The agitating device of fluid motor-driven is installed, for stirring for material in removable type cover plate
Mix, be homogenized.In order to meet that user uses in cold district, steam heating Stainless Steel Coil is installed, by what is installed in tank in tank
Thermal resistance detects fluid temperature in real time, automatic according to design temperature and control the open and close of the pneumatic stopping valve on steam pipe to carry out
Heating and insulation.Temperature error can ensure within ± 5 DEG C.On the one hand heating to agitator tank can reduce compound viscosity,
Prevent the blocking for causing metering pump or transfer pipeline, reduce the uniformity of power of agitator and stirring；On the other hand due to that can control
The viscosity of compound, so as to improve measuring accuracy., only need to be by steam pipe when user need not heat compound
Pneumatic stopping valve is closed or closed to hand sluice valve, or setting heating-up temperature is set to low value, stops heating.On agitator tank also
Cleaning water pipe is installed, is controlled by hand sluice valve.When needing to clean agitator tank, metering pump and pipeline, hand can be opened manually
Valve cleans.Stirring tank volume and blender length see the table below 1：
1 feeding system of table configures and technical indicator
* note：Such as user's needs, blender volume can be designed as 375gal (1419.4L), corresponding blender length by user's requirement
Spend 62.54in (1.588m)
3.2 metering pump systems 4
Below every agitator tank, metering pump is installed.Metering pump is driven by oil motor, and oil motor is controlled by electrohydraulic servo valve
Rotating speed, controller change valve opening to control measuring accuracy by voltage signal.Volume is installed in metering pump shaft at the same time
Code device, detects the actual speed of metering pump, compared with rotating speed needed for calculating.Metering pump discharge passes through the height with quick coupling
Pressure rubber tube and hand sluice valve enter spare in blending tank.In order to reduce in metering pump export pipeline heels to measuring accuracy
Influence, pneumatic stopping valve is installed in metering pump discharge, compressed air is installed close to the valve or high pressure water cleans pipe, is being cleaned
Pneumatic stopping valve, control cleaning action are equally installed on pipe.After the completion of the metering of every kind of compound, pass through compressed air or height
Pressure water cleans up heels in pipe.Due to different compound and operation temperature, compound viscosity, proportion are different, metering
Pumpage will change, and (viscosity increases, and the volumetric efficiency of pump declines；Operation temperature raises, and compound viscosity declines)；Metering
Pump discharge pressure also has an impact measuring accuracy.In order to ensure measuring accuracy, in system debug according to different compounds,
Different temperatures carries out viscosity and pressure correction, for user's correction coefficient or curve, or be corrected automatically by computer storage (by
User's determination mode).
3.3 hydraulic system
Hydraulic system provides power source for whole feed proportioning system.All it is to pass through fluid motor-driven including stirring, measuring pumping.Liquid
Pressure motor driving has its small (under identical driving power compared with motor reducer), starting torque is big, speed governing is convenient etc.
Feature.The duplex pump that the system is formed using gear pump and plunger pump, is driven, small gear pump driven blender by a motor
Oil motor, while hydraulic oil is provided for big plunger pump, improve the oil absorption of column pump.Gear pump passes through the hand-operated valve on oil pipe
The rotation of manual control blender oil motor.Plunger pump provides the hydraulic oil of metering pump driving oil motor, by solenoid-operated proportional servo
Valve automatically controls motor rotary speed, it is also possible to manual needle valve manual control.Damage of the hydraulic pressure well cuts to Hydraulic Elements in order to prevent
Evil, filter is provided with hydraulic pump oil inlet pipe.Cooler can be according to the temperature of the temperature element control oil on hydraulic oil pipe
Degree, is provided with overflow valve in the outlet of pump, prevents hydraulic system superpressure.Hydraulic system includes：Motor, gear pump, plunger pump, meter
Measure pump drive motor, electromagnetic servo valve, manual needle valve, fuel tank, filter, hydraulic oil cooler, pressure sensor, thermometric member
Part, agitator drive motor and its fluid pressure line etc..In order to reduce system dimension, most hydraulic valves use modularized design,
Facilitate the extension of system at the same time.Each oil pipe is connected using the high-pressure rubber pipe of quick coupling, easy to repair.Each element of hydraulic system
Configuration such as table 2 below：
(1) screw metering pump 4
2 hydraulic system metering pump of table configures and technical indicator
* note, operating pressure are calculated by the long 50ft of metering pump export pipeline (15.24m).Such as pipeline lengthening, pressure needs to increase.
(2) screw metering pump drive gear oil motor 4
3 hydraulic system metering pump of table driving configuration and technical indicator
(3) stirrer-driven oil motor 4
Oil motor maximum speed about 180rpm, model Ross17.7cu in/motor (290ml/ turns), the place of production U.S..
(4) gear pump 1
Maximum pressure：3000Psi (21MPa), operating pressure：2000psi(14MPa).
The pump is mainly used for driving blender oil motor and provides 20psi (0.14MPa) hydraulic oil for axial variable displacement plunger pump, arranges
Amount >=46ml/ turns.
(5) PVPC types axial variable displacement plunger pump 1
Original system maximum pressure 2500psi (17.5MPa), 700~1000psi of operating pressure (4.9~7.0MPa).Select pump-type
Number：X2E-L-4-046/D, discharge capacity：46ml/ turns；Maximum pressure：260ba(26MPa)r；Rated operating pressure：210bar
(21MPa).The place of production：Italian ATOS companies.
(6) electro-hydraulic proportional servo valve 4
Solenoid-operated proportional servo valve control is by the hydraulic fluid flow rate of hydraulic metering pump drive motor, so that oil motor rotating speed is controlled,
Reach accurate metering.Every metering pump drive motor matches somebody with somebody a proportional servo valve.Servo valve model BD-15CCCN B2.5, BD-
15CCCN B15 and BD-15CCCN B20 control respectively 1#, 2,3# and 4# metering pump drive motor, the controller of proportional servo valve
(amplifier) uses interior explosion-proof type, 12 4s length 12m of 24DVC, cable EHC.Model PCM600S.
(7) filter 1
Filter is critical elements in hydraulic system.It can remove the pollutant in hydraulic oil, keep oil cleanliness, it is ensured that
The reliability of system element work.
Using stainless steel fibre filter, filter core sinters felt material using stainless steel superfine fibre, high with intensity, high temperature resistant,
Corrosion-resistant, contamination capacity is big, and filterability is good, and filter core can clean the features such as use repeatedly.
Filter model：YPH240ST-10W.
Technical performance：Flow：240L/min；10 μm of filtering accuracy；Pressure 4.2Mpa；Visual pressure difference indicator, indicates pressure difference 0.7
±0.07Mpa；- 10 DEG C~+100 DEG C of temperature；Filter core is pressure-resistant 21Mpa；Band by-passing valve, metal core.
(8) 1, cooler
During hydraulic work system, because of hydraulic pump, the volumetric loss of hydraulic motor and mechanical loss, or the pressure of control element and pipeline
The energy of the consumption such as power loss and liquid friction loss, almost all are converted into heat, make the temperature of hydraulic oil and Hydraulic Elements
Rise.If oil temperature is more than 80 DEG C, the normal work of hydraulic system will be seriously affected.The normal work of general provision hydraulic oil
Temperature is 15 DEG C~65 DEG C.Hydraulic oil is cooled down using cooler, makes it in prescribed limit.Go out in cooler hydraulic oil
The oily Thermistor Temperature Measurement element of installation, hydraulic fluid temperature can be observed by the thermometer in control panel on mouth pipeline.
Cooler uses domestic shell-and-tube heat exchanger, stainless steel welded structure.Hydraulic oil by shell side, cooling water by tube side,
Good heat dissipation effect, heat transfer coefficient are about：350~580W/ (M2 DEG C) heat exchange area 0.7M2, design pressure 1.6MPa.Pressure
Drop≤0.1MPa, model：2LQF1W types.
(9) 2, check valve
The direction of hydraulic oil is controlled, it is flowed from a direction.One of check valve makees counterbalance valve at the same time, makes variable
The entrance oil pressure of axial plunger pump is increased to 20psi (1.4Mpa), steady pressure.
Influence of 4 high temperature of table to Hydraulic Elements performance
(10) manual needle valve 4
For controlling blender oil motor rotating speed manually.
(11) 1, alternating current generator
Two coaxial mounted gear oil pumps and axial variable displacement plunger pump are driven by alternating current generator at the same time.
Technical parameter：40HP, 380~460DVC. three phase electric machine, 48A, 1800rpm, internal heater, is opened when stopping using
Dynamic heater heating motor, prevents condensed water.
(12) motor starter 1
Startup for motor.Installation electric heater in stainless steel inner cover, when system stalls, heater prevents condensed water
Into inside starter.Model FVNR.
(13) overflow valve 2
Make safety valve use, ensure that system is safe and reliable.
Relief valve set pressure 2500psi (17.5MPa) on axial variable displacement plunger pump export pipeline, maximum pressure：
3000psi (21MPa), flow：≥82.8L/min.
Overflow valve maximum pressure 3000psi (21MPa) on gear hydraulic pump export pipeline, setting pressure 2000psi
(14MPa)；Flow：≥82.8L/min.
(14) fuel tank
Open type oil tank, stainless steel welded structure, volume 20 gallons (75.7L).Fluid is by atmosphere pollution in order to prevent, on fuel tank top
Portion sets air cleaner, while doubles as pouring orifice.Fuel tank internal setting partition plate will be inhaled, oil return pipe separates, and circulate liquid stream, oil
Bubble in stream is separated and precipitated with impurity.In fuel tank lower curtate extreme lower position, drain oil, fluid and dirt when enabling to change oil are set
Successfully flowed out from drain oil.In order to observe the situation of the liquid level rising to tank filling and seen in system operation
See liquid level, be provided with liquid level gauge.Inner wall of oil tank blasting treatment, thoroughly removes dirt and welding slag.
Air-filter type：QUQ2, the overanxious precision of air：10μm；Air mass flow：1.0M3/min；Temperature range：- 20~+
100℃；The overanxious mesh of oil：15μm.
(15) quick coupling and high-pressure rubber pipe
For the ease of safeguarding, all hydraulic pipeline is connected with compound delivery pipe using quick coupling.Sebific duct is compiled using steel wire
Knit high-pressure rubber hose.
(16) pressure gauge and pressure meter switch
Indicate the pressure of each point in fluid pressure line.
3.4 electronic platform scales and charging basket
It is used to artificial dispensing when electronic platform scale and charging basket are as emergent management use.When system breaks down, in order not to influence
Production, discharge gate is equipped with each stirrer bottom.Hand valve can be opened and manually carry out dispensing.Electronic platform scale is equipped with high accuracy
Panther instrument, can show weight.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109989706A (en) * | 2019-04-25 | 2019-07-09 | 山东瑞诺液压机械有限公司 | A kind of petroleum machinery drive system using hydraulic motor |
| CN114704516A (en) * | 2022-04-22 | 2022-07-05 | 中国航发控制系统研究所 | Gear type pump pressure regulating system |
| US11931920B2 (en) | 2020-09-11 | 2024-03-19 | Halliburton Energy Services, Inc. | Additive control method utilizing smart redundant feedback |
-
2017
- 2017-08-04 CN CN201710659613.XA patent/CN107984626A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109989706A (en) * | 2019-04-25 | 2019-07-09 | 山东瑞诺液压机械有限公司 | A kind of petroleum machinery drive system using hydraulic motor |
| US11931920B2 (en) | 2020-09-11 | 2024-03-19 | Halliburton Energy Services, Inc. | Additive control method utilizing smart redundant feedback |
| CN114704516A (en) * | 2022-04-22 | 2022-07-05 | 中国航发控制系统研究所 | Gear type pump pressure regulating system |
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Application publication date: 20180504 |