CN103801112A - Output water pressurizing device of overflowing settling tank - Google Patents
Output water pressurizing device of overflowing settling tank Download PDFInfo
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- CN103801112A CN103801112A CN201210450309.1A CN201210450309A CN103801112A CN 103801112 A CN103801112 A CN 103801112A CN 201210450309 A CN201210450309 A CN 201210450309A CN 103801112 A CN103801112 A CN 103801112A
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Abstract
The invention discloses an output water pressurizing device of an overflowing settling tank, which is designed to pressurize output water from an overflowing settling tank. The output water pressurizing device of the overflowing settling tank is characterized in that the overflowing 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 air vent valve and a water pressure sensor; the lower part of the closed water tank is connected with a water pump water suction pipe; the bottom of the closed water tank is connected with an emptying valve; a water output end of the water pump water suction pipe is connected and communicated with a water pump of a control cabinet, a check valve, an electric flow adjustment valve and a de-oiling tank. The pressurizing device is capable of automatically turning on and off the water pump according to pressure variation of the close water tank, and continuously adjusting the opening degree of the electric flow adjustment valve, so that the flow of output water of the overflowing settling tank and the flow of the water pump can be consistent, and the system can run continuously and safely; a water inlet pipe of the water tank and the water pump water suction pipe are arranged inside the closed water tank in an upper input and lower output manner, so that air in output water of the high-level water tank can be sufficiently separated out inside the tank and removed. Therefore, the cavitation phenomenon can be avoided. The pressurizing device uses an airtight method to pressurize the overflowing settling tank to output water, and has the advantages of good water supply continuity and high security property.
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 of deviating from is by elevated tank overflow.Oil removing pot is for the secondary settlement of overflow settling tank water outlet.
Due to the difference in height of station place shape and equipment, cause sometimes the elevated tank liquid level of overflow settling tank lower than the liquid level in oil removing pot, or both liquid level difference are not enough to overcome head loss of pipeline, cause the water outlet of overflow settling tank cannot enter oil removing pot.Now, pond (tank) is generally 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 or stop pressurization with water pump.The shortcoming of this way is that water pump operation is discontinuous, affects the operational effect of follow-up recovered water equipment, and equipment increases, and invests high; If the recovered water after oilfield treatments is water filling water, can the strict dissolved oxygen content of controlling recovered water, and 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, its adopt sealing method to overflow settling tank water outlet pressurize, with keep supply water continuity, guarantee 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.Enclosed water pot top connects composite exhaust valve and the hydraulic pressure sensor that is connected switch board, and bottom connects water pump suction pipe, and bottom connects atmospheric valve.Water pump suction pipe water side connects the pipeline that two-way in parallel is identical, and pipeline connects via maintenance valve the water pump of 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 after merging successively, and electric flow control valve connects switch board.
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 at enclosed water pot top, and pump outlet connects electric flow control valve.Switch board changes according to the pressure of enclosed water pot the pump that automatically opens, cuts off the water, and constantly regulates the open degree of electric flow control valve, consistent to guarantee the flow of the water outlet of overflow settling tank and water pump, guarantee system continuously, operation safely.The upper entering and lower leaving setting in enclosed water pot of water pot water inlet pipe and water pump suction pipe, can make air entrainment in elevated tank water outlet fully discharge and separate out in tank, and get rid of by composite exhaust valve, thereby avoids water pump suction air and the cavitation that forms.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.
The specific embodiment
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 ends connect vertical enclosed water pot 3 tops; Enclosed water pot 3 tops connect composite exhaust valve 5 and the hydraulic pressure sensor 6 that is connected switch board 12, and bottom connects water pump suction pipe 10, and bottom connects atmospheric valve 7; Water pump suction pipe 10 water sides connect the pipeline that two-way in parallel is identical (wherein a road is for subsequent use), and pipeline connects via maintenance valve the water pump 4 of connecting switch board 12, and water pump 4 water sides connect check-valves 8 and maintenance valve; Two-way pipeline connects electric flow control valve 9 and oil removing pot 11 after merging successively, and electric flow control valve 9 connects switch board 12.
When real work, the water outlet of overflow settling tank 1 is introduced into elevated tank 2, then flows into enclosed water pot 3, and water pump 4 draws water and transports to oil removing pot 11 from enclosed water pot 3 bottoms.The dischargeable capacity of enclosed water pot 3 is the 30S metered flow of water pump 4.
This pressue device is set a P1 value according to elevated tank 2 and the liquid level difference of enclosed water pot 3 and line loss between the two:
In the time that enclosed water pot 3 pressure equal P1, switch board 12 is opened 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 values.
When enclosed water pot 3 pressure are during higher than P1, illustrate that now overflow settling tank 1 water flow is greater than water pump 4 discharge capacities, 12 of switch boards increase the open degree of electric flow control valves 9, increase water pump 4 outflows.
When enclosed water pot 3 pressure are during lower than P1, illustrate that now overflow settling tank 1 water flow is less than water pump 4 discharge capacities, 12 of switch boards are turned down the open degree of electric flow control valve 9, reduce water pump 4 outflows.
When enclosed water pot 3 pressure are during lower than 0.00MPa, switch board 12 is closed 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 composite exhaust valve (5) and the hydraulic pressure sensor (6) that is connected switch board (12), bottom connects water pump suction pipe (10), and bottom connects atmospheric valve (7); Water pump suction pipe (10) water side connects the pipeline that two-way in parallel is identical, pipeline connects via maintenance valve the water pump (4) of 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) after merging successively, and electric flow control valve (9) connects switch board (12).
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 identical pipeline of two-way that water pump suction pipe (10) water side is connected in parallel, 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 | Overflow settling tank water outlet pressue device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210450309.1A CN103801112B (en) | 2012-11-12 | 2012-11-12 | Overflow settling tank water outlet pressue device |
Publications (2)
| Publication Number | Publication Date |
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| CN103801112A true CN103801112A (en) | 2014-05-21 |
| CN103801112B CN103801112B (en) | 2016-03-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210450309.1A Active CN103801112B (en) | 2012-11-12 | 2012-11-12 | Overflow settling tank water outlet pressue device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112076499A (en) * | 2019-06-12 | 2020-12-15 | 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 | Overflow settling tank water outlet pressurization device |
-
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 | Overflow settling tank water outlet pressurization device |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112076499A (en) * | 2019-06-12 | 2020-12-15 | 中国石油化工股份有限公司 | Safety discharge tank and application thereof |
| 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 |
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| Publication number | Publication date |
|---|---|
| CN103801112B (en) | 2016-03-09 |
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