CN103801112B - Water outlet pressurizing device of overflow settling tank - Google Patents
Water outlet pressurizing device of overflow settling tank Download PDFInfo
- Publication number
- CN103801112B CN103801112B CN201210450309.1A CN201210450309A CN103801112B CN 103801112 B CN103801112 B CN 103801112B CN 201210450309 A CN201210450309 A CN 201210450309A CN 103801112 B CN103801112 B CN 103801112B
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- water
- tank
- connects
- water pump
- settling tank
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 141
- 238000012423 maintenance Methods 0.000 claims description 9
- 239000002131 composite material Substances 0.000 claims description 5
- 238000000034 method Methods 0.000 abstract description 5
- 230000001105 regulatory effect Effects 0.000 abstract 2
- 239000003921 oil Substances 0.000 description 8
- 239000007788 liquid Substances 0.000 description 5
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 239000010779 crude oil Substances 0.000 description 2
- 230000018044 dehydration Effects 0.000 description 2
- 238000006297 dehydration reaction Methods 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 230000032258 transport Effects 0.000 description 1
- 238000011282 treatment Methods 0.000 description 1
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- Jet Pumps And Other Pumps (AREA)
Abstract
The invention discloses an overflow settling tank effluent pressurizing device which is designed for pressurizing the effluent of an overflow settling tank. The overflow settling tank is connected with the upper part of a closed water tank through a high-level water tank, the top of the closed water tank is connected with a combined exhaust valve and a water pressure sensor, the lower part of the closed water tank is connected with a water suction pipe of a water pump, and the bottom of the closed water tank is connected with an emptying valve. The water outlet end of the water pump suction pipe is connected with a water pump, a check valve, an electric flow regulating valve and an oil removal tank which are communicated with the control cabinet. The pressure device automatically starts and stops the water pump according to the pressure change of the closed water tank, and continuously adjusts the opening degree of the electric flow regulating valve so as to ensure that the water outlet of the overflow settling tank is consistent with the flow of the water pump and ensure that the system continuously and safely operates. The water inlet pipe of the water tank and the water suction pipe of the water pump are arranged in the closed water tank in a mode of going in and going out from the top, so that air mixed with the water in the water discharged from the high-level water tank can be fully released out and removed in the tank, and the cavitation phenomenon is avoided. The pressurizing device adopts a closed method to pressurize the water discharged from the overflow settling tank, and has good water supply continuity and high safety performance.
Description
Technical field
The present invention relates to a kind of overflow settling tank water outlet pressue device, belong to dehydration of crude oil technical field.
Background technology
Overflow settling tank is dehydration of crude oil equipment, and the recovered water deviate from is by elevated tank overflow.Oil removing pot is used for the secondary settlement of overflow settling tank water outlet.
Due to the difference in height of stand place shape and equipment, cause the elevated tank liquid level of overflow settling tank lower than the liquid level in oil removing pot sometimes, or both liquid level difference are not enough to overcome head loss of pipeline, cause the water outlet of overflow settling tank to enter oil removing pot.Now, generally pond (tank) is set in centre, makes the water outlet of overflow settling tank be introduced into pond tank), then according to the liquid level of pond (tank), open with water pump or stop pressurization.The shortcoming of this way is that water pump operation is discontinuous, and affect the operational effect of follow-up recovered water equipment, equipment increases, and invests high; If the recovered water after oilfield treatments is water filling water, strictly can control the dissolved oxygen content of recovered water, and the pond (tank) in above-mentioned technique is open-top receptacle, can increase the dissolved oxygen content of recovered water.
Summary of the invention
The object of the present invention is to provide a kind of overflow settling tank water outlet pressue device, it adopts sealing method to pressurize to the water outlet of overflow settling tank, to keep the continuity supplied water, ensures the good operation of follow-up recovered water equipment.
The concrete technical scheme of overflow settling tank water outlet pressue device is as follows:
Overflow settling tank connects elevated tank by water tank breather pipe.Elevated tank connects water pot water inlet pipe via maintenance valve.The water pot water inlet pipe other end connects enclosed water pot top.Closed-up water tank top connects the hydraulic pressure sensor of composite exhaust valve and connection control cabinet, and bottom connects water pump suction pipe, and bottom connects atmospheric valve.Water pump suction pipe water side connects the identical pipeline of two-way in parallel, and pipeline connects via maintenance valve the water pump connecting switch board, and water pump water outlet end connects check-valves and maintenance valve.Two-way pipeline connects electric flow control valve and oil removing pot, electric flow control valve connection control cabinet after merging successively.
The water outlet of this pressue device overflow settling tank flows into enclosed water pot by elevated tank, and water pump directly draws water from enclosed water pot, and pressurized delivered is to oil removing pot.Hydraulic pressure sensor is established in closed-up water tank top, and pump outlet connects electric flow control valve.Switch board opens automatically according to the pressure change of enclosed water pot, pump of cutting off the water, and constantly regulates the open degree of electric flow control valve, consistent with the flow of water pump to ensure the water outlet of overflow settling tank, guarantees that system is run continuously, safely.Water pot water inlet pipe and the upper entering and lower leaving of water pump suction pipe in enclosed water pot are arranged, and the air entrainment in elevated tank water outlet can be made in tank fully to discharge precipitation, and got rid of by composite exhaust valve, thus the cavitation avoided water pump suction air and formed.This pressue device adopts sealing method to realize the water outlet pressurization of overflow settling tank, and water supply continuity is good, and security performance is high.
Accompanying drawing explanation
Fig. 1 is overflow settling tank water outlet pressue device schematic diagram.
Detailed description of the invention
With reference to Fig. 1, embodiments of the invention are further illustrated:
Embodiment:
This overflow settling tank water outlet pressue device is made up of overflow settling tank 1, elevated tank 2, enclosed water pot 3, water pump 4, composite exhaust valve 5, hydraulic pressure sensor 6, atmospheric valve 7, check-valves 8, electric flow control valve 9, water pump suction pipe 10, oil removing pot 11, switch board 12, water tank breather pipe 13 and water pot water inlet pipe 14:
Overflow settling tank 1 connects elevated tank 2 by water tank breather pipe 13; Elevated tank 2 connects water pot water inlet pipe 14 via maintenance valve; Water pot water inlet pipe 14 other end connects vertical enclosed water pot 3 top; Enclosed water pot 3 top connects the hydraulic pressure sensor 6 of composite exhaust valve 5 and connection control cabinet 12, and bottom connects water pump suction pipe 10, and bottom connects atmospheric valve 7; Water pump suction pipe 10 water side connects the identical pipeline (wherein a road is for subsequent use) of two-way in parallel, and pipeline connects via maintenance valve the water pump 4 connecting switch board 12, and water pump 4 water side connects check-valves 8 and maintenance valve; Two-way pipeline connects electric flow control valve 9 and oil removing pot 11, electric flow control valve 9 connection control cabinet 12 after merging successively.
During real work, the water outlet of overflow settling tank 1 is introduced into elevated tank 2, and then flow into enclosed water pot 3, water pump 4 draws water from enclosed water pot 3 bottom and transports to oil removing pot 11.The dischargeable capacity of enclosed water pot 3 is the 30S metered flow of water pump 4.
This pressue device sets a P1 value according to the liquid level difference of elevated tank 2 and enclosed water pot 3 and line loss between the two:
When enclosed water pot 3 pressure equals P1, switch board 12 opens water pump 4 automatically, and constantly automatically regulates the open degree of electric flow control valve 9, to maintain the stable of enclosed water pot 3 pressure value.
When enclosed water pot 3 pressure is higher than P1, illustrate that now overflow settling tank 1 water flow is greater than water pump 4 discharge capacity, switch board 12 increases the open degree of electric flow control valve 9, increases water pump 4 outflow.
When enclosed water pot 3 pressure is lower than P1, illustrate that now overflow settling tank 1 water flow is less than water pump 4 discharge capacity, switch board 12 turns down the open degree of electric flow control valve 9, reduces water pump 4 outflow.
When enclosed water pot 3 pressure is lower than 0.00MPa, switch board 12 closes down water pump 4 automatically, and utilizes the water storage water yield of enclosed water pot 3 to complete safe termination of pumping process, to avoid occurring pipeline vaccuum phenomenon.
Claims (2)
1. an overflow settling tank water outlet pressue device, is characterized in that:
Overflow settling tank (1) connects elevated tank (2) by water tank breather pipe (13); Elevated tank (2) connects water pot water inlet pipe (14) via maintenance valve; Water pot water inlet pipe (14) other end connects enclosed water pot (3) top; Enclosed water pot (3) top connects the hydraulic pressure sensor (6) of composite exhaust valve (5) and connection control cabinet (12), bottom connects water pump suction pipe (10), and bottom connects atmospheric valve (7); Water pump suction pipe (10) water side connects the identical pipeline of two-way in parallel, pipeline connects via maintenance valve the water pump (4) connecting switch board (12), and water pump (4) water side connects check-valves (8) and maintenance valve; The dischargeable capacity of enclosed water pot (3) is the 30s metered flow of water pump (4); Two-way pipeline connects electric flow control valve (9) and oil removing pot (11), electric flow control valve (9) connection control cabinet (12) after merging successively.
2. overflow settling tank water outlet pressue device as claimed in claim 1, is characterized in that enclosed water pot (3) is for vertical; The pipeline that the two-way that water pump suction pipe (10) water side is connected in parallel is identical, wherein a road is active redundancy pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210450309.1A CN103801112B (en) | 2012-11-12 | 2012-11-12 | Water outlet pressurizing device of overflow settling tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210450309.1A CN103801112B (en) | 2012-11-12 | 2012-11-12 | Water outlet pressurizing device of overflow settling tank |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103801112A CN103801112A (en) | 2014-05-21 |
| CN103801112B true CN103801112B (en) | 2016-03-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210450309.1A Active CN103801112B (en) | 2012-11-12 | 2012-11-12 | Water outlet pressurizing device of overflow settling tank |
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| Country | Link |
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| CN (1) | CN103801112B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112076499B (en) * | 2019-06-12 | 2022-02-18 | 中国石油化工股份有限公司 | Safety discharge tank and application thereof |
| CN113123770A (en) * | 2020-01-16 | 2021-07-16 | 中国石油化工股份有限公司 | Fixed-face hydraulic jet fracturing nozzle, jet pipe string and application of fixed-face hydraulic jet fracturing nozzle |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1148922B1 (en) * | 1999-02-01 | 2003-05-14 | Cyclotech Limited | Fluid processing for separating emulsions |
| CN201144165Y (en) * | 2007-09-03 | 2008-11-05 | 中国石油天然气管道局 | Closed automatic oil floating device for processing oil-contaminated water |
| CN202492415U (en) * | 2012-02-02 | 2012-10-17 | 孙成胜 | Efficient full-automatic oil-water separation system |
| CN202951287U (en) * | 2012-11-12 | 2013-05-29 | 中国石油天然气股份有限公司 | Water outlet pressurizing device of overflow settling tank |
-
2012
- 2012-11-12 CN CN201210450309.1A patent/CN103801112B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1148922B1 (en) * | 1999-02-01 | 2003-05-14 | Cyclotech Limited | Fluid processing for separating emulsions |
| CN201144165Y (en) * | 2007-09-03 | 2008-11-05 | 中国石油天然气管道局 | Closed automatic oil floating device for processing oil-contaminated water |
| CN202492415U (en) * | 2012-02-02 | 2012-10-17 | 孙成胜 | Efficient full-automatic oil-water separation system |
| CN202951287U (en) * | 2012-11-12 | 2013-05-29 | 中国石油天然气股份有限公司 | Water outlet pressurizing device of overflow settling tank |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103801112A (en) | 2014-05-21 |
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