CN202030559U - Evaporation concentration device for treating wastewater in oil-gas field - Google Patents
Evaporation concentration device for treating wastewater in oil-gas field Download PDFInfo
- Publication number
- CN202030559U CN202030559U CN2011201312680U CN201120131268U CN202030559U CN 202030559 U CN202030559 U CN 202030559U CN 2011201312680 U CN2011201312680 U CN 2011201312680U CN 201120131268 U CN201120131268 U CN 201120131268U CN 202030559 U CN202030559 U CN 202030559U
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- flash tank
- evaporation concentration
- gas field
- compressor
- pool
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- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
Abstract
The utility model discloses an evaporation concentration device for treating wastewater in an oil-gas field. The device comprises a flash tank (1), a compressor (2), a concentrated sludge pump (3) and a wastewater preheater (4), wherein the flash tank (1) comprises a steam extraction opening (13), sewage inlet spray heads (9) and a liquid drop baffle (10) arranged at the top of the flash tank, an electrical heating coil pipe (8) arranged at the bottom of the flash tank, a superheated water zone (5) and a condensed water zone (6) arranged on the inner side of the flash tank; and the superheated water zone (5) is connected with the condensed water zone (6) through at least one water heating pipe (7). The utility model adopts a vacuum evaporation concentration process at a middle-low temperature, and recycles secondary steam and uses a heat exchanger to recover energy, so that the energy consumption is reduced, harmful substances in organic matters, heavy metal and the like in the wastewater are kept in concentrated waste sludge, and the produced condensation water can be recycled and be directly up to the standard for discharging without being treated again.
Description
Technical field
The utility model relates to the evaporation concentration device that a kind of handling oil gas field wastewater is used.
Background technology
The different steps of crude oil and Natural gas extraction all can produce the sewage waste.Contain Hazardous wastes-mud in the sewage, as in drilling process, the refuse code that the mud that waste drilling fluids disposal produces is included by " national Hazardous wastes register " is 071-002-08, and the hazard property of mud is a chronic toxicity; In oil production and refining process, the refuse code that the greasy filth of generation and oil foot are included is 071-001-08, and the hazard property of mud is chronic toxicity and inflammableness.Therefore, in carrying out wastewater treatment process, need concentrate to reduce sewage and amount to mud handling capacity.
In many handling oil gas field sewage treating processess, adopt common physical chemistry technology and technology, be chemical coagulation flocculation, electrolytic oxidation reduction, intensive filtration absorption.This technology is common to exist situations such as equipment is many, place of production area is big, the complicated investment height of capital construction, operational management requirement cost height, introducing treatment agent formation secondary pollution, and generally will handle the back sewage discharge, usually produces below standard problem with regard to discharging.Now at the oil-gas field sewage disposal, the membrane filtration process of employing and technology are also arranged, chemical coagulation flocculation in the often above a kind of technology of this technology is the basis, simultaneously since in the oil-gas field sewage suspended particle quantity be easy to cause film to stop up greatly, also cause running cost very high.
The utility model content
The purpose of this utility model is at the deficiencies in the prior art, the evaporation concentration device that provides a kind of handling oil gas field wastewater to use, the existing Technology use of solution equipment is many, floor space is big, capital construction is complicated, investment is high, the operational management cost high and easily form secondary pollution problems.
The purpose of this utility model is achieved through the following technical solutions: the evaporation concentration device that the handling oil gas field wastewater is used, and it comprises flash tank, compressor, dense dredge pump and waste water preheater; Described flash tank comprises fluffy head of the steam pumping mouth, the sewage import that are arranged at its top and drop baffle plate, be arranged at the electrically heated coil pipe of its bottom and be arranged at overheated pool and condensation pool on its both sides inwall, is connected by at least one water heating tube between overheated pool and the condensation pool; The steam pumping mouth is connected with the inlet of compressor, and the outlet of compressor is connected with overheated pool; Dense dredge pump is located at the below of flash tank, and the condensation pool is connected with the waste water preheater; An inlet of dense dredge pump is connected with flash tank, and another inlet of dense dredge pump is connected with the waste water preheater by the concentrating spent liquor reflux pipeline, and the concentrating spent liquor reflux pipeline is provided with concentrating spent liquor bleed valve and concentrating spent liquor reverse flow valve.
Flash tank described in the utility model is a vacuum flasher.
The top of flash tank described in the utility model is semisphere, and the bottom is tapered.
Compressor described in the utility model is the steam-to-vacuum compressor.
Flash tank described in the utility model is a vacuum flasher.
The top of flash tank described in the utility model is semisphere, and the bottom is tapered.
Compressor described in the utility model is the steam-to-vacuum compressor.
The beneficial effects of the utility model are as follows:
1, do not use chemical processing agent such as flocculation agent, redox agent;
2, cryogenic vacuum evaporating and concentrating process in the employing maintains pest still in concentrating spent liquor;
3, the final useless mud amount of handling is low, has reduced processing cost;
4, apparatus structure is simple, floor space is little, level of automation height, easy to use;
5, equipment energy consumption is low, and the treatment capacity scope is wide;
6, water base the contamination-free that evaporates, reusable edible;
7, in the equipment running process, do not produce secondary pollution, adapted to the current environmental protection demand of strengthening day by day.
Description of drawings
Fig. 1 is the utility model structural representation
Among the figure, 1-flash tank, 2-compressor, the dense dredge pump of 3-, 4-waste water preheater, the overheated pool of 5-, 6-condensation pool, 7-water heating tube, 8-electrically heated coil pipe, the fluffy head of 9-sewage import, 10-drop baffle plate, 11-concentrating spent liquor bleed valve, 12-concentrating spent liquor reverse flow valve, 13-steam pumping mouth.
Embodiment
Further describe the technical solution of the utility model below in conjunction with accompanying drawing: the evaporation concentration device that the handling oil gas field wastewater is used is characterized in that: it comprises vacuum flasher 1, steam-to-vacuum compressor 2, dense dredge pump 3 and waste water preheater 4; The top of described vacuum flasher 1 is semisphere, the bottom is tapered, it comprises fluffy 9 of steam pumping mouth 13, the sewage import and the drop baffle plate 10 that are arranged at its top, be arranged at the electrically heated coil pipe 8 of its bottom and be arranged at overheated pool 5 and condensation pool 6 on its both sides inwall, is connected by at least one water heating tube 7 between overheated pool 5 and the condensation pool 6; Steam pumping mouth 13 is connected with the inlet of steam-to-vacuum compressor 2, and the outlet of steam-to-vacuum compressor 2 is connected with overheated pool 5; Dense dredge pump 3 is located at the below of vacuum flasher 1, and condensation pool 6 is connected with waste water preheater 4; An inlet of dense dredge pump 3 is connected with vacuum flasher 1, and another inlet of dense dredge pump 4 is connected with waste water preheater 4 by the concentrating spent liquor reflux pipeline, and the concentrating spent liquor reflux pipeline is provided with concentrating spent liquor bleed valve 11 and concentrating spent liquor reverse flow valve 12.
Oil-gas field waste water enters vacuum flasher 1 after heating up through waste water preheater 4, in vacuum flasher 1, by vacuum and low temperature boiling principle, oil-gas field waste water evaporates big water gaging rapidly, form concentrating spent liquor then, water vapor obtains water of condensation at last by compression and second stage employ heat.
Steam-to-vacuum compressor 2 makes and forms low-voltage vacuum in the vacuum flasher 1, with the vapour compression that generates, produces superheated water, enters vacuum flasher 1.Fluffy 9 of the sewage import of vacuum flasher 1 is connected with waste water preheater 4 with condensation pool 6, and the water of condensation in condensation pool 6 enters 4 pairs of oil-gas field sewage of waste water preheater and carries out preheating in the vacuum flasher 1.
Concentrating spent liquor is delivered to next step dense mud treatment process by dense dredge pump 3, if concentrated effect is relatively poor, concentrating spent liquor can reflux and carry out evaporation concentration once more with oil-gas field waste water.
Claims (4)
1. the evaporation concentration device used of handling oil gas field wastewater, it is characterized in that: it comprises flash tank (1), compressor (2), dense dredge pump (3) and waste water preheater (4); Described flash tank (1) comprises the fluffy head of the steam pumping mouth (13), the sewage import that are arranged at its top (9) and drop baffle plate (10), be arranged at the electrically heated coil pipe (8) bottom it and be arranged at overheated pool (5) and condensation pool (6) on its both sides inwall, is connected by at least one water heating tube (7) between overheated pool (5) and condensation pool (6); Steam pumping mouth (13) is connected with the inlet of compressor (2), and the outlet of compressor (2) is connected with overheated pool (5); Dense dredge pump (3) is located at the below of flash tank (1), and condensation pool (6) are connected with waste water preheater (4); An inlet of dense dredge pump (3) is connected with flash tank (1), another inlet of dense dredge pump (4) is connected with waste water preheater (4) by the concentrating spent liquor reflux pipeline, and the concentrating spent liquor reflux pipeline is provided with concentrating spent liquor bleed valve (11) and concentrating spent liquor reverse flow valve (12).
2. the evaporation concentration device that handling oil gas field wastewater according to claim 1 is used is characterized in that: described flash tank (1) is a vacuum flasher.
3. the evaporation concentration device that handling oil gas field wastewater according to claim 1 is used is characterized in that: the top of described flash tank (1) is semisphere, and the bottom is tapered.
4. the evaporation concentration device that handling oil gas field wastewater according to claim 1 is used is characterized in that: described compressor (2) is the steam-to-vacuum compressor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201312680U CN202030559U (en) | 2011-04-29 | 2011-04-29 | Evaporation concentration device for treating wastewater in oil-gas field |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201312680U CN202030559U (en) | 2011-04-29 | 2011-04-29 | Evaporation concentration device for treating wastewater in oil-gas field |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202030559U true CN202030559U (en) | 2011-11-09 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201312680U Expired - Lifetime CN202030559U (en) | 2011-04-29 | 2011-04-29 | Evaporation concentration device for treating wastewater in oil-gas field |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202030559U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106698792A (en) * | 2017-01-10 | 2017-05-24 | 山东大学 | Organic salt-containing wastewater treatment system based on vacuum evaporation and thermal energy utilization and process |
| CN109071269A (en) * | 2016-04-21 | 2018-12-21 | 水翼株式会社 | The processing method and its device of oily waste liquor |
-
2011
- 2011-04-29 CN CN2011201312680U patent/CN202030559U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109071269A (en) * | 2016-04-21 | 2018-12-21 | 水翼株式会社 | The processing method and its device of oily waste liquor |
| CN106698792A (en) * | 2017-01-10 | 2017-05-24 | 山东大学 | Organic salt-containing wastewater treatment system based on vacuum evaporation and thermal energy utilization and process |
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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 | ||
| CX01 | Expiry of patent term |
Granted publication date: 20111109 |