CN108929724B - Multi-section differential pressure type oil-water continuous drainage device - Google Patents
Multi-section differential pressure type oil-water continuous drainage device Download PDFInfo
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- CN108929724B CN108929724B CN201811081404.2A CN201811081404A CN108929724B CN 108929724 B CN108929724 B CN 108929724B CN 201811081404 A CN201811081404 A CN 201811081404A CN 108929724 B CN108929724 B CN 108929724B
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- oil
- gas
- water separator
- water
- pipeline
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 107
- 239000007788 liquid Substances 0.000 claims abstract description 36
- 239000007791 liquid phase Substances 0.000 claims abstract description 7
- 239000012071 phase Substances 0.000 claims abstract description 7
- 230000001105 regulatory effect Effects 0.000 claims description 26
- 239000003034 coal gas Substances 0.000 abstract description 12
- 238000007599 discharging Methods 0.000 abstract description 2
- 238000003912 environmental pollution Methods 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 description 6
- 239000000126 substance Substances 0.000 description 5
- 238000003911 water pollution Methods 0.000 description 5
- 238000004064 recycling Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 2
- 238000000746 purification Methods 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 239000003463 adsorbent Substances 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 231100000614 poison Toxicity 0.000 description 1
- 231100000572 poisoning Toxicity 0.000 description 1
- 230000000607 poisoning effect Effects 0.000 description 1
- 230000007096 poisonous effect Effects 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 239000012808 vapor phase Substances 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10K—PURIFYING OR MODIFYING THE CHEMICAL COMPOSITION OF COMBUSTIBLE GASES CONTAINING CARBON MONOXIDE
- C10K1/00—Purifying combustible gases containing carbon monoxide
- C10K1/002—Removal of contaminants
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D1/00—Pipe-line systems
- F17D1/005—Pipe-line systems for a two-phase gas-liquid flow
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D3/00—Arrangements for supervising or controlling working operations
- F17D3/01—Arrangements for supervising or controlling working operations for controlling, signalling, or supervising the conveyance of a product
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Pipeline Systems (AREA)
Abstract
The invention discloses a multi-pipeline differential pressure type oil-water continuous drainage device which comprises a gas tank, wherein gas outlets of the gas tank are connected to a plurality of gas main pipelines with different pressures, the gas outlets of each gas main pipeline are connected to an oil-water separator, a gas phase outlet of the oil-water separator is connected to a gas inlet of the gas tank, and a liquid phase outlet of the oil-water separator is connected to an oil-water collecting tank; a gas phase outlet and a liquid phase outlet of the oil-water separator are respectively provided with a pressure linkage control valve and a liquid level linkage control valve; the invention solves the problems of untimely and incomplete pollution discharge caused by manual timing and fixed-point valve opening, and avoids the environmental pollution and the personnel operation safety caused by directly discharging the coal gas into the atmosphere.
Description
[ field of technology ]
The invention belongs to the technical field of coal gas purification treatment in coal chemical industry, and particularly relates to a multi-pipeline differential pressure type oil-water continuous drainage device.
[ background Art ]
When the gas is conveyed in the pipeline, part of saturated steam and mechanical water can be separated. And brings adverse effects to gas transportation, gas pipeline facilities and use of users. At present, the coal gas oil-water pollution discharge device in the chemical industry field is formed by a coal gas water seal, oil water is discharged and coal gas is sealed through the height of the water seal and the depth of an insertion pipe, but the coal gas water seal device has a plurality of limitations, firstly, the water seal is only suitable for the condition of lower pipeline pressure, once the pipeline pressure is slightly higher, the height of water in the water seal is difficult to control (10 cm water seal=1 kPa), and the pipeline pressure is higher in the chemical industry field, so that the old water seal cannot be used due to the limitations. Secondly, each section of oil-water pollution discharge of the old device needs to manually open a pollution discharge valve at fixed time and fixed point for oil-water pollution discharge, so that oil water is accumulated in a pipeline, after entrainment, the efficiency and the service life of an adsorbent and a catalyst in a rear system tower are reduced, and meanwhile, crystal scale is generated in a compressor system, and the working efficiency and the service life of the compressor are influenced. Thirdly, the old oil-water pollution discharge directly discharges the coal gas in the oil water to the atmosphere, so that the environment is polluted, and the idea of clean civilized production is not consistent; in the pollution discharge process, coal gas is directly discharged as a dangerous source, and is extremely easy to catch fire and explode when meeting open fire, and is easy to cause the threat of inhalation poisoning when meeting the environment with poor ventilation.
[ invention ]
The invention aims to provide a multi-pipeline differential pressure type oil-water continuous drainage device, which solves the problems of untimely and incomplete drainage caused by manual timing and fixed-point valve opening, and avoids the problems of environmental pollution and personnel operation safety caused by directly discharging coal gas into the atmosphere.
The invention adopts the following technical scheme: the multi-pipeline differential pressure type oil-water continuous drainage device comprises a gas tank, wherein a gas outlet of the gas tank is connected to a plurality of gas main pipelines with different pressures, the gas outlet of each gas main pipeline is connected to an oil-water separator, a gas phase outlet of the oil-water separator is connected to a gas inlet of the gas tank, and a liquid phase outlet of the oil-water separator is connected to an oil-water collecting tank;
the pressure sensor is used for measuring the pressure in the oil-water separator and sending a signal to the corresponding automatic regulating valve when the measured pressure reaches a preset value, so that the corresponding automatic regulating valve is opened and gas in the oil-water separator is conveyed to a gas inlet of the gas tank; the liquid level sensor is used for measuring the liquid level in the oil-water separator and sending a signal to the corresponding automatic regulating valve when the measured liquid level reaches a preset value, so that the corresponding automatic regulating valve is opened and the liquid in the oil-water separator is conveyed to the oil-water collecting tank.
Further, the differential pressure between the main gas pipeline and the oil-water separator is 0.15-0.2 MPa.
Further, the liquid level preset value of the liquid level sensor is 30% -45% of the full liquid level of the oil-water separator.
Further, an emptying shower guide valve and an on-site pressure gauge are arranged between each main gas pipeline and the oil-water separator and at the front end and the rear end of the automatic regulating valve.
The beneficial effects of the invention are as follows: the oil-water separator effectively recycles the coal gas in the oil water, avoids the direct discharge of the coal gas to the atmosphere, realizes clean civilized production, protects the environment, realizes uninterrupted oil-water pollution discharge and coal gas recycling for 24 hours by utilizing a two-stage pressure difference, a liquid level linkage control valve and a pressure linkage control valve, is not limited by pipeline pressure in the daily production process of a chemical plant, avoids accumulated water in a pipeline caused by manual timing and fixed-point valve opening pollution discharge, and ensures the purification of the gas, the normal operation and the service life of a compressor and a supercharger.
[ description of the drawings ]
Fig. 1 is a schematic structural view of the present invention.
Wherein: 1. a main gas pipe; 2. a gas cabinet; 3. an automatic regulating valve; 5. an oil-water separator; 6. an oil-water collecting tank; 7. an emptying shower guiding valve; 8. a pressure sensor; 9. a liquid level sensor.
[ detailed description ] of the invention
The invention will be described in detail below with reference to the drawings and the detailed description.
The multi-pipeline differential pressure type oil-water continuous drainage device comprises a gas tank 2, wherein the gas tank 2 is used for storing gas and supplies gas for each workshop, so that gas outlets of the gas tank are connected to a plurality of gas main pipelines 1 with different pressures after being pressurized, and the gas outlets of each gas main pipeline 1 are connected to an oil-water separator 5.
The gas phase outlet of the oil-water separator 5 is connected to the gas inlet of the gas tank 2, a pressure sensor 8 is arranged on the gas phase outlet, an automatic regulating valve 3 is further arranged on a pipeline between the oil-water separator 5 and the gas tank 2, the pressure sensor 8 is in signal connection with the automatic regulating valve 3, the pressure sensor 8 and the automatic regulating valve 3 establish pressure automatic linkage logic to control the pressure of the oil-water separator 5, and the gas inlet for conveying the gas in the oil-water separator 5 to the gas tank is opened when the measured pressure reaches a preset value.
The pressure value in the oil-water separator 5 can be detected in real time through the pressure sensor 8, and a signal is sent to the automatic regulating valve 3 when the measured pressure reaches a preset value, so that the automatic regulating valve 3 is automatically opened, and the gas in the oil-water separator 5 is conveyed to the gas inlet of the gas tank 2 through the conveying pipeline. In order to ensure that the oil-water separator 5 sufficiently separates oil and water in the gas, a certain differential pressure must be maintained between the gas main pipeline 1 and the oil-water separator 5, and the differential pressure is 0.15-0.2 MPa, so that the separation effect is best.
The liquid phase outlet of the oil-water separator 5 is provided with a liquid level sensor 9, the pipeline between the oil-water separator 5 and the oil-water collecting tank 6 is also provided with an automatic regulating valve 3, the liquid level sensor 9 is used for measuring the liquid level in the oil-water separator 5, the liquid level sensor 9 and the automatic regulating valve 3 are used for measuring the liquid level in the oil-water separator 5, and when the liquid level reaches a preset value, the liquid in the oil-water separator 5 is started to be conveyed to the oil-water collecting tank 6. The liquid level sensor 9 is connected with the automatic regulating valve 3 through signals, and the liquid level sensor 9 is used for measuring the oil-water liquid level in the oil-water separator 5 and sending signals to the corresponding automatic regulating valve 3 when the liquid level reaches a preset value, so that the corresponding automatic regulating valve 3 is opened and the liquid in the oil-water separator 5 is conveyed to the oil-water collecting tank 6. In order to ensure the normal operation of the oil-water separator 5, the liquid level preset value of the liquid level sensor 9 is 30% -45% of the full liquid level of the oil-water separator 5.
In addition, in order to facilitate later maintenance, an emptying shower guide valve 7 and an on-site pressure gauge are arranged between each gas main pipeline 1 and the oil-water separator 5 and at the front end and the rear end of the automatic regulating valve 3.
The liquid phase outlet of the oil-water separator 5 is connected to an oil-water collecting tank 6, and water quality is further purified and reused by precipitation in the oil-water collecting tank 6.
The invention relates to a multi-pipeline differential pressure type oil-water continuous drainage device, which is an oil-water drainage device capable of realizing centralized recovery of oil-water and gas recovery and reutilization for 24 hours and clean production. The gas belongs to poisonous and harmful gas, is extremely easy to explode when meeting open fire, intensively recovers and effectively protects the operation safety and the physical health of staff in the post, and simultaneously, the recovered gas enters the gas cabinet again, thereby realizing the cost reduction and synergy of production.
According to the invention, oil-water separation of a plurality of devices and a plurality of small pressure difference pipelines is realized simultaneously under the condition of differential pressure, separated oil and water are conveyed to an oil-water collecting tank 6 by vapor phase flash evaporation secondary pressure after pressure reduction, gas is recycled to a low-pressure pipe network of a gas tank for recycling, and finally, the full-automatic linkage drainage and gas collection of a plurality of pipelines by one oil-water separator are realized simultaneously.
As shown in figure 1, raw gas comes from a gas tank, enters 4 equipment pipelines, the pipeline pressure can be gradually reduced due to the existence of resistance, the pressure of each pipeline from top to bottom is respectively 0.3MPa, 0.29MPa, 0.28MPa and 0.25MPa, oil water generated in the pipeline enters the oil-water separator 5 at any time, the gas phase part is monitored by the pressure sensor 8, when the pressure in the oil-water separator 5 is higher than 0.08MPa, the automatic regulating valve 3 is automatically opened through a logic principle, gas enters the gas tank for recycling, and the problem that gas in oil water is directly discharged to the atmosphere is solved. The liquid phase part is monitored by a liquid level sensor 9, when the liquid level in the oil-water separator 5 reaches 30%, an automatic regulating valve is controlled to be automatically opened through a logic principle, and oil water enters an oil-water collecting tank 6, so that the problems that the valve is manually opened and the oil water is accumulated during sewage discharge are solved.
The oil-water separator 5 can timely and thoroughly discharge oil water and impurities in the equipment pipeline, and can effectively recycle gas in the oil water, so that the resource recycling is realized, the environment and the health of workers are protected, the labor force of frequent manual drainage is relieved, and the chemical safety production is effectively ensured.
Claims (4)
1. The multi-pipeline differential pressure type oil-water continuous drainage device is characterized by comprising a gas tank (2), wherein gas outlets of the gas tank (2) are connected to a plurality of gas main pipelines (1) with different pressures, the gas outlets of each gas main pipeline (1) are connected to an oil-water separator (5), a gas phase outlet of the oil-water separator (5) is connected to a gas inlet of the gas tank (2), and a liquid phase outlet of the oil-water separator (5) is connected to an oil-water collecting tank (6);
the oil-water separator (5) is provided with a pressure sensor (8) and a liquid level sensor (9), the pipeline between the oil-water separator (5) and the gas tank (2) and the pipeline between the oil-water separator (5) and the oil-water collecting tank (6) are provided with automatic regulating valves (3), the pressure sensor (8) and the liquid level sensor (9) are respectively connected with the corresponding automatic regulating valves (3) through signals, the pressure sensor (8) is used for measuring the pressure in the oil-water separator (5) and sending signals to the corresponding automatic regulating valves (3) when the measured pressure reaches a preset value, so that the corresponding automatic regulating valves (3) are opened and gas in the oil-water separator (5) is conveyed to a gas inlet of the gas tank (2); the liquid level sensor (9) is used for measuring the liquid level in the oil-water separator (5) and sending a signal to the corresponding automatic regulating valve (3) when the measured liquid level reaches a preset value, so that the corresponding automatic regulating valve (3) is opened and the liquid in the oil-water separator (5) is conveyed to the oil-water collecting tank (6).
2. The multi-pipeline differential pressure type oil-water continuous drainage device according to claim 1, wherein the differential pressure between the main gas pipeline (1) and the oil-water separator (5) is 0.15-0.2 MPa.
3. The multi-pipeline differential pressure type oil-water continuous drainage device according to claim 1 or 2, wherein the liquid level preset value of the liquid level sensor (9) is 30% -45% of the full liquid level of the oil-water separator (5).
4. A multi-pipeline differential pressure type oil-water continuous drainage device as claimed in claim 3, wherein an emptying shower guide valve (7) and an on-site pressure gauge are arranged between each gas main pipeline (1) and the oil-water separator (5) and at the front end and the rear end of the automatic regulating valve (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811081404.2A CN108929724B (en) | 2018-09-17 | 2018-09-17 | Multi-section differential pressure type oil-water continuous drainage device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811081404.2A CN108929724B (en) | 2018-09-17 | 2018-09-17 | Multi-section differential pressure type oil-water continuous drainage device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108929724A CN108929724A (en) | 2018-12-04 |
| CN108929724B true CN108929724B (en) | 2023-12-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201811081404.2A Active CN108929724B (en) | 2018-09-17 | 2018-09-17 | Multi-section differential pressure type oil-water continuous drainage device |
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Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4160652A (en) * | 1977-08-26 | 1979-07-10 | Texas Eastern Engineering, Ltd. | Method and apparatus for handling the fluids in a two-phase flow pipeline system |
| SU1395811A1 (en) * | 1986-10-27 | 1988-05-15 | Казанское научно-производственное объединение "Нефтепромавтоматика" | Installation for joint conveying of oil-containing liquid and gas |
| CN101036847A (en) * | 2007-02-12 | 2007-09-19 | 中冶集团北京冶金设备研究设计总院 | Device for purifying air by eliminating smoke and dust and the technique thereof |
| CN202705391U (en) * | 2012-07-25 | 2013-01-30 | 济钢集团国际工程技术有限公司 | Off-line gas recovery device for gas cabinet of converter |
| CN104359005A (en) * | 2014-11-10 | 2015-02-18 | 河南中鸿集团煤化有限公司 | Automatic recycling device for discharged gas |
| CN204897958U (en) * | 2015-09-02 | 2015-12-23 | 昆明钢铁集团有限责任公司 | Converter coal gas recovery system with pressure measurement function is stabilized to high accuracy |
| CN105907915A (en) * | 2016-04-21 | 2016-08-31 | 中冶东方工程技术有限公司 | System and process of recycling and utilizing converter gas |
| CN207085625U (en) * | 2017-06-14 | 2018-03-13 | 唐山钢铁集团有限责任公司 | A kind of coking device for recovering tail gas of achievable zero-emission |
| CN208949212U (en) * | 2018-09-17 | 2019-06-07 | 陕西黑猫焦化股份有限公司 | A kind of multitube segment difference pressure type grease platoon device |
-
2018
- 2018-09-17 CN CN201811081404.2A patent/CN108929724B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4160652A (en) * | 1977-08-26 | 1979-07-10 | Texas Eastern Engineering, Ltd. | Method and apparatus for handling the fluids in a two-phase flow pipeline system |
| SU1395811A1 (en) * | 1986-10-27 | 1988-05-15 | Казанское научно-производственное объединение "Нефтепромавтоматика" | Installation for joint conveying of oil-containing liquid and gas |
| CN101036847A (en) * | 2007-02-12 | 2007-09-19 | 中冶集团北京冶金设备研究设计总院 | Device for purifying air by eliminating smoke and dust and the technique thereof |
| CN202705391U (en) * | 2012-07-25 | 2013-01-30 | 济钢集团国际工程技术有限公司 | Off-line gas recovery device for gas cabinet of converter |
| CN104359005A (en) * | 2014-11-10 | 2015-02-18 | 河南中鸿集团煤化有限公司 | Automatic recycling device for discharged gas |
| CN204897958U (en) * | 2015-09-02 | 2015-12-23 | 昆明钢铁集团有限责任公司 | Converter coal gas recovery system with pressure measurement function is stabilized to high accuracy |
| CN105907915A (en) * | 2016-04-21 | 2016-08-31 | 中冶东方工程技术有限公司 | System and process of recycling and utilizing converter gas |
| CN207085625U (en) * | 2017-06-14 | 2018-03-13 | 唐山钢铁集团有限责任公司 | A kind of coking device for recovering tail gas of achievable zero-emission |
| CN208949212U (en) * | 2018-09-17 | 2019-06-07 | 陕西黑猫焦化股份有限公司 | A kind of multitube segment difference pressure type grease platoon device |
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|---|---|
| CN108929724A (en) | 2018-12-04 |
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