CN203904276U - Demulsifying agent injection device - Google Patents
Demulsifying agent injection device Download PDFInfo
- Publication number
- CN203904276U CN203904276U CN201420286762.8U CN201420286762U CN203904276U CN 203904276 U CN203904276 U CN 203904276U CN 201420286762 U CN201420286762 U CN 201420286762U CN 203904276 U CN203904276 U CN 203904276U
- Authority
- CN
- China
- Prior art keywords
- emulsion splitter
- storage tank
- inlet tube
- demulsifying agent
- outlet pipe
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 238000002347 injection Methods 0.000 title claims abstract description 20
- 239000007924 injection Substances 0.000 title claims abstract description 20
- 239000003795 chemical substances by application Substances 0.000 title abstract description 16
- 239000000839 emulsion Substances 0.000 claims description 87
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims description 18
- 229910052786 argon Inorganic materials 0.000 claims description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 8
- 239000010779 crude oil Substances 0.000 abstract description 12
- 238000000034 method Methods 0.000 abstract description 10
- 239000003921 oil Substances 0.000 abstract description 6
- 238000011033 desalting Methods 0.000 abstract description 4
- 238000005259 measurement Methods 0.000 abstract 2
- 239000007788 liquid Substances 0.000 description 13
- 238000004140 cleaning Methods 0.000 description 3
- 239000012530 fluid Substances 0.000 description 3
- 235000019600 saltiness Nutrition 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- 238000001514 detection method Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000003912 environmental pollution Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000003556 assay Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 239000013043 chemical agent Substances 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 230000009897 systematic effect Effects 0.000 description 1
Landscapes
- Feeding, Discharge, Calcimining, Fusing, And Gas-Generation Devices (AREA)
Abstract
The utility model discloses a demulsifying agent injection device. The demulsifying agent injection device is used for solving the problems that an existing device is relatively high in manual labor intensity and relatively long in adjustment delay time of demulsifying agent injection amount. A demulsifying agent storage tank (6), a metering pump (18) and a PLC (programmable logic controller) (23) are arranged on the demulsifying agent injection device, wherein a stroke controller or a frequency converter (19) is arranged at an adjustment end of the metering pump; a measurement and control line (27) is arranged between the PLC and the stroke controller or the frequency converter; a DCS (data communication system) communication line (26) is arranged between the PLC and a DCS (29) in a central control room of an oil refinery; a self-sucking pump (4) is arranged at the outer part of the demulsifying agent storage tank; a self-sucking pump inlet pipe (2) and a self-sucking pump outlet pipe (28) are arranged on the self-sucking pump; the outlet of the self-sucking pump outlet pipe is connected with the upper part of the demulsifying agent storage tank; the measurement and control line is arranged between the PLC and the self-sucking pump. The demulsifying agent injection device disclosed by the utility model can be applied to the electric desalting and dewatering process of crude oil, and can be used for injecting a demulsifying agent into the crude oil.
Description
Technical field
The utility model relates in crude oil electric desalting dewatering process to the emulsion splitter injection device that injects emulsion splitter in crude oil.
Background technology
In crude oil deep-processing process, for alleviating equipment corrosion, improving oil quality, must first reduce saltiness and water content in crude oil; Normally add and throw a certain proportion of emulsion splitter and other chemical agent according to crude charging capacity at the entrance of electrical desalting and dewatering device.At present, the emulsion splitter injection device generally using mainly adopts manual regulation or open loop control, the subject matter existing is: because oil property signal, crude charging capacity signal, de-rear water content in crude oil signal and saltiness signal before de-fail to introduce operating device, so the adjustment of emulsion splitter fluence need to be passed through multiple links such as artificial sample, assay calculating, manual regulation volume pump.In the time that oil property or crude charging capacity change after de-front taking off, can not adjust in time emulsion splitter fluence; Be generally 1～2 day retardation time, sometimes even longer, have a strong impact on electrodesalting and electrodehydrating effect and quality product.Operating experience and the sense of responsibility dependence of whole operating process to operator is too strong, has reduced working efficiency, has increased hand labor intensity, also easily causes emulsion splitter waste and environmental pollution.In addition, need to use manually the emulsion splitter of barreled to be joined in emulsion splitter storage tank, labour intensity is also larger.
Summary of the invention
The problems such as the purpose of this utility model is to provide a kind of emulsion splitter injection device, and the existing hand labor intensity of existing emulsion splitter injection device is large to solve, the retardation time of emulsion splitter fluence adjustment is long.
For addressing the above problem, the technical solution adopted in the utility model is: a kind of emulsion splitter injection device, be provided with emulsion splitter storage tank, volume pump, PLC controller, volume pump is provided with volume pump inlet tube, volume pump outlet pipe, the entrance of volume pump inlet tube is connected with the bottom of emulsion splitter storage tank, the adjustable side of volume pump is provided with Fill argon clamping fixture or frequency transformer, between PLC controller and Fill argon clamping fixture or frequency transformer, be provided with observing and controlling line, it is characterized in that: between the indoor DCS system of PLC controller and refinery center-control, be provided with DCS connection, the outside of emulsion splitter storage tank is provided with vacuum primingpump, vacuum primingpump is provided with vacuum primingpump inlet tube and vacuum primingpump outlet pipe, the outlet of vacuum primingpump outlet pipe is connected with the top of emulsion splitter storage tank, between PLC controller and vacuum primingpump, be provided with observing and controlling line.
Adopt the utility model, there is following beneficial effect: PLC controller can receive in real time the indoor DCS systematic collection of refinery center-control to de-before oil property signal, crude charging capacity signal, de-after water content in crude oil signal and saltiness signal (being real time data), emulsion splitter injection device is carried out to signal detection and control.In the time that after de-front taking off, oil property or crude charging capacity change, PLC controller can be adjusted automatically by the program of setting the action of volume pump, adjust online, in time, exactly emulsion splitter fluence (be only generally about 1 minute retardation time), improve significantly electrodesalting and electrodehydrating effect and quality product.DCS system can on-line monitoring emulsion splitter injection device running status, realize remote automation control, alleviate hand labor intensity and to artificial dependence, improve working efficiency, improved Working environment, and can not cause waste and the environmental pollution of emulsion splitter.In addition, the utility model uses vacuum primingpump under the control of PLC controller, the emulsion splitter of barreled to be joined in emulsion splitter storage tank, has also alleviated hand labor intensity.
The utility model can be realized closed loop, the optimal control of emulsion splitter fluence, is ensureing, under the condition of the equal result of use of emulsion splitter, can to reduce emulsion splitter consumption 5%～20% (by volume) compared with adopting existing apparatus.Of the present utility model simple in structure, easy to operate, operate steadily reliably, plant investment and running cost are low, can perform well in crude oil electric desalting dewatering process, in crude oil, inject emulsion splitter.
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.The drawings and specific embodiments do not limit the claimed scope of the utility model.
Brief description of the drawings
Fig. 1 is the schematic diagram of the utility model emulsion splitter injection device.
Embodiment
Referring to Fig. 1, emulsion splitter injection device of the present utility model is provided with emulsion splitter storage tank 6, volume pump 18, PLC controller 23 (PLC controller is programmable logic controller).Volume pump 18 (being generally METERING DIAPHRAGM PUMPS) is provided with volume pump inlet tube 31, volume pump outlet pipe 16.The entrance of volume pump inlet tube 31 is connected with the bottom of emulsion splitter storage tank 6, and volume pump inlet tube 31 is provided with and adds agent valve 12 and strainer 14.Volume pump outlet pipe 16 is provided with volume pump outlet pipe valve 160, and is connected with deoscillator 15 and tensimeter 17.The adjustable side of volume pump 18 is provided with Fill argon clamping fixture or frequency transformer 19, between PLC controller 23 and Fill argon clamping fixture or frequency transformer 19, is provided with observing and controlling line 27.The sidewall of emulsion splitter storage tank 6 is provided with liquidometer 7, fluid level transmitter 8, between PLC controller 23 and fluid level transmitter 8, is provided with observing and controlling line 27.Liquidometer 7 is for detection of the liquid level of the interior emulsion splitter of emulsion splitter storage tank 6 or clean-out system, and sends liquid level signal to PLC controller 23 by fluid level transmitter 8.
PLC controller 23 is located in positive pressure explosion-proof cabinet 25; In positive pressure explosion-proof cabinet 25, be also provided with touch-screen 24, device power supply (DPS) 22, can realize the local setting of controlling parameter by touch-screen 24.Device power supply (DPS) 22 is with electric power incoming line 21 (entering from the bottom of positive pressure explosion-proof cabinet 25), and is provided with supply lead between PLC controller 23; Between PLC controller 23 and touch-screen 24, be provided with observing and controlling line.Between the indoor DCS system 29 of PLC controller 23 and refinery center-control, be provided with DCS connection 26 (DCS system is dcs).Owing to being provided with positive pressure explosion-proof cabinet 25, make the utility model can be used for Exed II C class anti-explosion area.
The outside of emulsion splitter storage tank 6 is provided with vacuum primingpump 4 (being generally self-priming centrifugal pump), and vacuum primingpump 4 is provided with vacuum primingpump inlet tube 2 and vacuum primingpump outlet pipe 28.Vacuum primingpump inlet tube 2 is provided with liquid valve 3, and vacuum primingpump inlet tube 2 is generally plastic hose with the pipeline section that upper liquid valve 3 entrances are connected; The outlet of vacuum primingpump outlet pipe 28 is connected with the top of emulsion splitter storage tank 6.Between PLC controller 23 and vacuum primingpump 4, be provided with observing and controlling line 27.
Between the top (preferably top) of emulsion splitter storage tank 6 and volume pump inlet tube 31, can be provided with and demarcate pipeline 30 (one end of demarcating pipeline 30 is connected in volume pump inlet tube 31 on the pipeline section adding between agent valve 12 and strainer 14), demarcate pipeline 30 and be provided with Calibration Column 10 and calibrate valve 11.
The top (preferably top) of emulsion splitter storage tank 6 can be provided with clean-out system inlet tube 9, and clean-out system inlet tube 9 is provided with clean-out system inlet tube valve 90.Simultaneously, between the bottom of emulsion splitter storage tank 6 and vacuum primingpump inlet tube 2, be provided with clean-out system outlet pipe 5 (outlet of clean-out system outlet pipe 5 is connected in vacuum primingpump inlet tube 2 on the pipeline section between vacuum primingpump 4 and upper liquid valve 3), clean-out system outlet pipe 5 is provided with clean-out system outlet pipe valve 50.The bottom of emulsion splitter storage tank 6 is provided with blow-off pipe 13, and blow-off pipe 13 is provided with wash water valve 130.
In the utility model each valve used, clean-out system inlet tube valve 90, clean-out system outlet pipe valve 50 and wash water valve 130 are magnetic valve, are respectively equipped with observing and controlling line (figure slightly) to control its switching between PLC controller 23 and these valves.Remaining valve is manually-operated gate, and it opens and closes by Artificial Control.
Emulsion splitter injection device of the present utility model can complete installation on base 20, so that transport, installation and maintenance.
Below in conjunction with Fig. 1, operating process of the present utility model is described.
Liquid on emulsion splitter: the entrance of vacuum primingpump inlet tube 2 is inserted in emulsion splitter bucket 1.Open the upper liquid valve 3 of closing, PLC controller 23 is controlled vacuum primingpump 4 and is started, and the emulsion splitter in emulsion splitter bucket 1 is sent in emulsion splitter storage tank 6 through vacuum primingpump inlet tube 2, vacuum primingpump outlet pipe 28.As stated above, many barrels of emulsion splitters are sent in emulsion splitter storage tank 6 successively.When the emulsion splitter liquid level in emulsion splitter storage tank 6 reach emulsion splitter storage tank 6 height approximately 90% time, close and close liquid valve 3, PLC controller 23 is controlled vacuum primingpump 4 and is shut down.
Emulsion splitter injects: open close add agent valve 12 and volume pump outlet pipe valve 160, PLC controller 23 is controlled volume pump 18 by Fill argon clamping fixture or frequency transformer 19 and is started, and the emulsion splitter in emulsion splitter storage tank 6 is sent in the crude oil that carries out electrodesalting and electrodehydrating through volume pump inlet tube 31, volume pump outlet pipe 16.PLC controller 23, by Fill argon clamping fixture or frequency transformer 19, can be realized automatically and controlling emulsion splitter fluence.
When the liquid level of emulsion splitter storage tank 6 interior emulsion splitters is reduced to down in limited time, to close and add agent valve 12, PLC controller 23 is controlled volume pump 18 by Fill argon clamping fixture or frequency transformer 19 and is shut down, and re-starts liquid on emulsion splitter.
The process of injecting at emulsion splitter, can carry out on-line proving to the fluence of emulsion splitter, and method is: open the calibrate valve 11 of closing, the emulsion splitter in emulsion splitter storage tank 6 enters Calibration Column 10 through volume pump inlet tube 31, demarcation pipeline 30.Manual observation enters the breakdown of emulsion dosage in Calibration Column 10, when its reach a certain amount of after, close and add agent valve 12 and start clock and watch timing simultaneously.Emulsion splitter in Calibration Column 10 is sent in the crude oil that carries out electrodesalting and electrodehydrating through demarcation pipeline 30, volume pump inlet tube 31, volume pump outlet pipe 16 by volume pump 18.Emulsion splitter in post 10 to be calibrated drops to when a certain amount of, closes calibrate valve 11 and stops timing, opens and add agent valve 12.Afterwards, can calculate the momentary value of emulsion splitter fluence under current working condition according to the time of the emulsion splitter slippage in Calibration Column 10 and metering, and revise in time as required the control parameter of PLC controller 23.
In calibration process, if it is excessive and overflowed by the top of Calibration Column 10 to enter emulsion splitter in Calibration Column 10, can upwards flow, enter emulsion splitter storage tank 6 along demarcating pipeline 30.
When emulsion splitter storage tank 6 use after a period of time or device overhauls, can automatically clean, method is: open the clean-out system inlet tube valve 90 (remaining valve is in closing condition) of closing, clean-out system is sent into emulsion splitter storage tank 6 through clean-out system inlet tube 9.When the clean-out system liquid level in emulsion splitter storage tank 6 reach emulsion splitter storage tank 6 height approximately 50% time, close clean-out system inlet tube valve 90, open clean-out system outlet pipe valve 50, while PLC controller 23 is controlled vacuum primingpump 4 and is started, clean-out system is flowed through clean-out system outlet pipe 5, vacuum primingpump inlet tube 2, vacuum primingpump outlet pipe 28, realize its circulating and cleaning in emulsion splitter storage tank 6.After cleaning for some time (approximately 10 minutes), PLC controller 23 controls vacuum primingpump 4 and shuts down and cut out clean-out system outlet pipe valve 50.Open afterwards wash water valve 130, the cleaning waste liquid in emulsion splitter storage tank 6 is discharged through blow-off pipe 13, then close wash water valve 130.
Claims (3)
1. an emulsion splitter injection device, be provided with emulsion splitter storage tank (6), volume pump (18), PLC controller (23), volume pump (18) is provided with volume pump inlet tube (31), volume pump outlet pipe (16), the entrance of volume pump inlet tube (31) is connected with the bottom of emulsion splitter storage tank (6), the adjustable side of volume pump (18) is provided with Fill argon clamping fixture or frequency transformer (19), between PLC controller (23) and Fill argon clamping fixture or frequency transformer (19), be provided with observing and controlling line (27), it is characterized in that: between the indoor DCS system (29) of PLC controller (23) and refinery center-control, be provided with DCS connection (26), the outside of emulsion splitter storage tank (6) is provided with vacuum primingpump (4), vacuum primingpump (4) is provided with vacuum primingpump inlet tube (2) and vacuum primingpump outlet pipe (28), the outlet of vacuum primingpump outlet pipe (28) is connected with the top of emulsion splitter storage tank (6), between PLC controller (23) and vacuum primingpump (4), be provided with observing and controlling line (27).
2. emulsion splitter injection device according to claim 1, it is characterized in that: between the top of emulsion splitter storage tank (6) and volume pump inlet tube (31), be provided with and demarcate pipeline (30), demarcate pipeline (30) and be provided with Calibration Column (10) and calibrate valve (11).
3. emulsion splitter injection device according to claim 1 and 2, it is characterized in that: the top of emulsion splitter storage tank (6) is provided with clean-out system inlet tube (9), clean-out system inlet tube (9) is provided with clean-out system inlet tube valve (90), between the bottom of emulsion splitter storage tank (6) and vacuum primingpump inlet tube (2), be provided with clean-out system outlet pipe (5), clean-out system outlet pipe (5) is provided with clean-out system outlet pipe valve (50), the bottom of emulsion splitter storage tank (6) is provided with blow-off pipe (13), blow-off pipe (13) is provided with wash water valve (130).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420286762.8U CN203904276U (en) | 2014-05-25 | 2014-05-25 | Demulsifying agent injection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420286762.8U CN203904276U (en) | 2014-05-25 | 2014-05-25 | Demulsifying agent injection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203904276U true CN203904276U (en) | 2014-10-29 |
Family
ID=51778566
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420286762.8U Expired - Lifetime CN203904276U (en) | 2014-05-25 | 2014-05-25 | Demulsifying agent injection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203904276U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105419854A (en) * | 2015-11-17 | 2016-03-23 | 中石化节能环保工程科技有限公司 | Demulsifying agent filling system |
| CN108274617A (en) * | 2017-01-05 | 2018-07-13 | 烟台政通节能建材设备制造有限公司 | A kind of novel mixing device |
| CN113586009A (en) * | 2021-07-30 | 2021-11-02 | 朱刘洋 | Quantitative injection device of demulsifier for oil exploitation |
-
2014
- 2014-05-25 CN CN201420286762.8U patent/CN203904276U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105419854A (en) * | 2015-11-17 | 2016-03-23 | 中石化节能环保工程科技有限公司 | Demulsifying agent filling system |
| CN108274617A (en) * | 2017-01-05 | 2018-07-13 | 烟台政通节能建材设备制造有限公司 | A kind of novel mixing device |
| CN113586009A (en) * | 2021-07-30 | 2021-11-02 | 朱刘洋 | Quantitative injection device of demulsifier for oil exploitation |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20141029 |
|
| CX01 | Expiry of patent term |