CN214612089U - Condensing system - Google Patents
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- CN214612089U CN214612089U CN202120231469.1U CN202120231469U CN214612089U CN 214612089 U CN214612089 U CN 214612089U CN 202120231469 U CN202120231469 U CN 202120231469U CN 214612089 U CN214612089 U CN 214612089U
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Abstract
The utility model discloses a condensing system, include: the system comprises thermal phase separation equipment, condensing equipment, first heat exchange equipment, second heat exchange equipment and absorption refrigeration equipment; the thermal phase separation equipment is provided with a high-temperature gas outlet and a flue gas outlet; the condensing device is provided with a gas inlet and an uncondensed gas outlet; the first heat exchange device is provided with a first heat exchange gas inlet, a first cooling medium outlet and a non-condensable gas outlet; the second heat exchange device is provided with a flue gas inlet, a second cooling medium inlet and a second cooling medium outlet; the absorption refrigeration equipment is provided with a refrigeration medium outlet; the high-temperature gas outlet is communicated with the gas inlet, the uncondensed gas outlet is communicated with the first heat exchange gas inlet, the first cooling medium inlet is communicated with the refrigerating medium outlet, the flue gas inlet is communicated with the flue gas outlet, and the second cooling medium outlet is communicated with the high-temperature medium inlet. The condensing system can effectively condense and recover high-temperature components, medium-temperature components and low-temperature components in oil gas components.
Description
Technical Field
The utility model relates to an oiliness sludge treatment technical field especially relates to a condensing system.
Background
The oily sludge is oily solid waste generated in the processes of oil exploitation, transportation, refining and oily sewage treatment, and is one of main pollutants generated in the processes of oil gas development, storage and transportation. The oily sludge is not only waste generated in the production process of oil fields, but also a resource, and the oily sludge is treated by thermal phase separation equipment to carry out harmless treatment and residual oil recovery, thereby not only generating certain economic benefit, but also lightening pollution and bringing huge environmental benefit and social benefit.
The oil-containing sludge is treated by thermal phase separation equipment and is indirectly heated in an anoxic or inert gas atmosphere, so that a large amount of high-temperature mixed gas is generated, the mixed gas comprises water gas, oil gas with different components, particulate impurities and the like, wherein the oil gas component comprises a high-temperature component with a condensation point of more than 170 ℃, a medium-temperature component with a condensation point of about 70-170 ℃ and a low-temperature component with a condensation point of less than 70 ℃, the mixed gas is condensed by condensation equipment and is cooled to about 70 ℃, and the purpose of condensing and recycling the low-temperature component cannot be achieved.
Therefore, there is a need for a condensing system that can effectively condense and recover high temperature components, medium temperature components, and low temperature components of oil and gas components.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a condensing system to solve the technical problem that the unable condensation of conventional condensing equipment retrieves low temperature component among the prior art.
In order to solve the above problem, the utility model adopts the following technical scheme:
according to an embodiment of the present application, there is provided a condensing system including: the system comprises thermal phase separation equipment, condensing equipment, first heat exchange equipment, second heat exchange equipment and absorption refrigeration equipment; the thermal phase separation equipment is provided with a high-temperature gas outlet and a flue gas outlet; the condensing device has a gas inlet and an uncondensed gas outlet; the first heat exchange device is provided with a first heat exchange gas inlet, a first cooling medium outlet, a non-condensable gas outlet and a first condensed liquid outlet; the second heat exchange device is provided with a flue gas inlet, a flue gas discharge port, a second cooling medium inlet and a second cooling medium outlet; the absorption refrigeration equipment is provided with a high-temperature medium inlet and a refrigeration medium outlet; the high-temperature gas outlet is communicated with the gas inlet, the uncondensed gas outlet is communicated with the first heat exchange gas inlet, the first cooling medium inlet is communicated with the refrigerating medium outlet, the flue gas inlet is communicated with the flue gas outlet, and the second cooling medium outlet is communicated with the high-temperature medium inlet.
Optionally, the thermal phase separation apparatus comprises a burner, the non-condensable gas outlet being in communication with the burner.
Optionally, the absorption refrigeration device is a lithium bromide absorption refrigerator.
Optionally, the condensing system further comprises a condensed liquid collection tank, and the first condensed liquid outlet is in communication with the condensed liquid collection tank.
Optionally, the condensing system further comprises a demister, the demister comprising a demister gas channel and a demister liquid outlet, and the uncondensed gas outlet is communicated with the first heat exchange gas inlet through the demister gas channel.
Optionally, the condensing system further comprises a settling separation device, the settling separation device comprises a settling separation material inlet, and the demister liquid outlet is communicated with the settling separation material inlet.
Optionally, the condensing apparatus is a spray tower; the condensing equipment further comprises a second condensed liquid inlet and a second condensed liquid outlet, and the second condensed liquid outlet is communicated with the sedimentation separation material inlet.
Optionally, the settling separation device further includes an upper layer liquid outlet and a middle layer liquid first outlet, the condensation system further includes an oil tank and a sewage treatment device, the upper layer liquid outlet is communicated with the oil tank, and the middle layer liquid first outlet is communicated with the sewage treatment device.
Optionally, the settling separation apparatus further includes a second outlet for the middle-layer liquid, the condensing system further includes a third heat exchange apparatus, the third heat exchange apparatus includes a third heat-exchange liquid inlet and a third heat-exchange liquid outlet, the second outlet for the middle-layer liquid is communicated with the third heat-exchange liquid inlet, and the third heat-exchange liquid outlet is communicated with the second condensed liquid inlet.
Optionally, the condensing system further comprises a pretreatment apparatus and a feed apparatus in communication with the pretreatment apparatus, the feed apparatus in communication with the thermal phase separation apparatus.
The utility model discloses a technical scheme can reach following beneficial effect:
the application provides a condensing system at first adopts condensing equipment to condense high temperature component and the medium temperature component in the oil gas component, then continues to cool off the low temperature component in the oil gas component in first heat exchange equipment as the cold source with the refrigeration of absorption refrigeration equipment output, through this condensing system, can both carry out effective condensation to high temperature component, medium temperature component and the low temperature component in the oil gas component and retrieve. Meanwhile, the absorption refrigeration equipment utilizes the heat provided by the second heat exchange equipment to refrigerate, chilled water with the temperature of 5-15 ℃ can be obtained, deep condensation is carried out on low-temperature components by utilizing the chilled water, the waste heat of the flue gas is fully utilized, and the operation cost is low.
Drawings
The accompanying drawings, which are described herein, serve to provide a further understanding of the invention and constitute a part of this specification, and the exemplary embodiments and descriptions thereof are provided for explaining the invention without unduly limiting it. In the drawings:
FIG. 1 is a process flow diagram of a condensing system according to an embodiment of the present application.
Description of reference numerals:
1 pretreatment apparatus
2 feeding device
3 thermal phase separation device
4 condensation plant
5 demister
6 settling separation equipment
7 sewage treatment equipment
8 oil tank
9 first heat exchange equipment
10 absorption refrigeration equipment
11 second heat exchange equipment
12 condensed liquid collecting tank
13 third heat exchange equipment
Detailed Description
To make the purpose, technical solution and advantages of the present invention clearer, the following will combine the embodiments of the present invention and the corresponding drawings to clearly and completely describe the technical solution of the present invention. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
The technical solutions disclosed in the embodiments of the present invention are described in detail below with reference to the accompanying drawings.
As shown in fig. 1, according to an embodiment of the present application, there is provided a condensing system including: the system comprises a thermal phase separation device 3, a condensation device 4, a first heat exchange device 9, a second heat exchange device 11 and an absorption refrigeration device 10; the thermal phase separation equipment 3 is used for carrying out indirect heating treatment on the oily sludge to generate high-temperature mixed gas, and the thermal phase separation equipment 3 is provided with a high-temperature gas outlet and a flue gas outlet; the condensing equipment 4 is used for preliminarily condensing the generated high-temperature mixed gas, the condensing equipment 4 is provided with a gas inlet and an uncondensed gas outlet, and the high-temperature gas outlet is communicated with the gas inlet. The high-temperature mixed gas generated in the thermal phase separation device 3 enters a gas inlet of the condensation device 4 through a high-temperature gas outlet and is then condensed in the condensation device 4, wherein high-temperature components and medium-temperature components in the mixed gas are condensed and the temperature of the gas which is not condensed in the mixed gas (i.e., low-temperature components, also called as first-stage non-condensable gas) is reduced to about 40 ℃; the first-stage non-condensable gas enters a first heat exchange device 9 through a non-condensable gas outlet, the first heat exchange device 9 is used for deeply condensing the non-condensable gas (the first-stage non-condensable gas) in the condensing device 4, the first heat exchange device 9 is provided with a first heat exchange gas inlet, a first cooling medium outlet, a non-condensable gas outlet and a first condensed liquid outlet, and the non-condensable gas outlet is communicated with the first heat exchange gas inlet; the uncondensed gas (the first-stage uncondensed gas) in the condensing equipment 4 enters the first heat exchange equipment 9 and then is further condensed, wherein a cold source of the first heat exchange equipment 9 is chilled water of 5-15 ℃ output by the absorption refrigeration equipment 10, the absorption refrigeration equipment 10 is provided with a high-temperature medium inlet and a refrigeration medium outlet, the first cooling medium inlet is communicated with the refrigeration medium outlet, the chilled water flows into the first cooling medium inlet of the first heat exchange equipment 9 from the refrigeration medium outlet, and therefore the low-boiling-point organic component and part of water in the low-temperature component are condensed in the first heat exchange equipment 9.
In this embodiment, the absorption refrigeration device 10 may be a lithium bromide absorption refrigeration machine, and the cold energy produced by the absorption refrigeration device 10 provides cold energy for the first heat exchange device 9 in a water circulation manner. The absorption refrigeration equipment 10 utilizes the heat provided by the second heat exchange equipment 11 to carry out refrigeration, and the plant cooling water exchanges heat with the absorption refrigeration equipment 10. The second heat exchange device 10 is provided with a flue gas inlet, a flue gas discharge port, a second cooling medium inlet and a second cooling medium outlet; the flue gas inlet of the second heat exchange device 10 is communicated with the flue gas outlet of the thermal phase separation device 3, and high-temperature flue gas discharged by the thermal phase separation device 3 through the flue gas outlet enters the second heat exchange device 10 through the flue gas inlet. And a second cooling medium outlet of the second heat exchange device 10 is communicated with a high-temperature medium inlet of the absorption refrigeration device 10.
Further, the thermal phase separation equipment can also comprise a combustor, and a non-condensable gas outlet of the first heat exchange equipment 9 is communicated with the combustor, so that non-condensable gas (second-stage non-condensable gas) which is not condensed in the first heat exchange equipment 9 enters the combustor to provide heat for the thermal phase separation equipment.
Further, the condensing system can further comprise a condensed liquid collecting tank 12, and the first condensed liquid outlet of the first heat exchange device 9 is communicated with the condensed liquid collecting tank, so that the condensation and recovery of the low-boiling-point organic components and part of water are realized.
In this embodiment, the condensing system may further include a demister 5, the demister 5 including a demister gas passage and a demister liquid outlet, the uncondensed gas outlet being communicated with the first heat exchange gas inlet through the demister gas passage. The gas that does not condense in condensing equipment 4 (the noncondensable gas in first stage) carries a small amount of oil droplets, moisture, tiny particle and gets into defroster 5, handles through defroster 5, and moisture, tiny particle, the oil droplets in the noncondensable gas in first stage separate from the noncondensable gas in first stage, discharge through defroster liquid outlet in order to carry out processing on next step, and the noncondensable gas in first stage also obtains the purification through defroster 5 simultaneously.
Further, the condensing system can also include sedimentation separation equipment 6, and sedimentation separation equipment 6 includes the sedimentation separation material import, and defroster liquid outlet and sedimentation separation material import intercommunication to moisture, tiny particle, the oil droplet (oil water solid) mixture in the first stage noncondensable gas that separates in defroster 5 gets into the sedimentation separation material import through defroster liquid outlet, then carries out the three-phase separation at sedimentation separation equipment 6.
In this embodiment, the condensing device 4 may adopt a spray tower to condense the mixed gas by a spray condensing manner; the condensing means 4 may further comprise a second condensed liquid inlet and a second condensed liquid outlet, the second condensed liquid outlet communicating with the settled separated material inlet. Cooling medium such as water gets into condensing equipment 4 through second condensate liquid import and provides the cold source for condensing equipment 4, and then with the heat transfer of high temperature mist to carry out preliminary condensation to high temperature mist, wherein, the liquid after the condensation mainly is the oil phase, gets into through second condensate liquid export and subsides the material import of separation, in order to carry out the three-phase separation in settling separation equipment 6.
Further, the sedimentation separation equipment 6 further comprises an upper layer liquid outlet and a middle layer liquid first outlet, the condensation system further comprises an oil tank 8 and sewage treatment equipment 7, the upper layer liquid outlet is communicated with the oil tank 8, and the middle layer liquid first outlet is communicated with the sewage treatment equipment 7. Therefore, the upper oil phase in the settling separation device 6 enters the oil tank 8 through the upper liquid outlet, and part of the middle water phase is sent to the sewage treatment device 7 for treatment through the middle liquid first outlet.
In order to realize the cyclic utilization of the process water, the sedimentation separation equipment 6 can further comprise a middle-layer liquid second outlet, the condensation system can further comprise a third heat exchange equipment 13, the third heat exchange equipment 13 comprises a third heat exchange liquid inlet and a third heat exchange liquid outlet, the middle-layer liquid second outlet is communicated with the third heat exchange liquid inlet, and the third heat exchange liquid outlet is communicated with the second condensation liquid inlet, so that part of middle-layer water phase in the sedimentation separation equipment 6 is used as process circulating water and is sent to the third heat exchange equipment 13 through the middle-layer liquid second outlet, the process circulating water is sent to the condensation equipment 4 after being cooled by the third heat exchange equipment 13, spraying water is provided for the condensation equipment 4, plant cooling water is used for heat exchange of the third heat exchange equipment 13, and hot water after heat exchange is discharged at the same time.
Further, the condensation system of the present application may further comprise a pretreatment apparatus 1 and a feed apparatus 2 in communication with the pretreatment apparatus, the feed apparatus 2 being in communication with a thermal phase separation apparatus 3.
In the embodiment of the application, the operation method of the condensation system is as follows:
after being crushed and screened by a pretreatment device 1, oil-containing sludge is conveyed to a thermal phase separation device 3 by a feeding device 2 for indirect heating treatment, high-temperature solid slag phase generated by the oil-containing sludge after the thermal phase separation treatment is discharged from the tail end of the thermal phase separation device 3 to the next stage device for continuous treatment, high-temperature mixed gas generated by the oil-containing sludge after the thermal phase separation treatment enters a condensing device 4 for condensation treatment, the high-temperature mixed gas is condensed and collected to a sedimentation separation device 6 for three-phase separation after the condensation treatment of the condensing device 4, non-condensable gas in the first stage can be cooled to about 40 ℃, high-temperature components, medium-temperature components and dust particles carried by the high-temperature components are condensed and collected to a sedimentation separation device 6 for three-phase separation, the non-condensable gas in the first stage carries a small amount of oil beads, moisture and fine particles to enter a demister 5 and is treated by the demister 5, and the moisture, fine particles and oil beads in the non-condensable gas in the first stage are separated from the non-condensable gas in the first stage, the first stage is where the non-condensable gases are purified. The separated and collected oil-water-solid mixture enters a sedimentation separation device 6 to be subjected to three-phase separation, the mixture is treated by the sedimentation separation device 6, the upper oil phase is collected into an oil tank 8, sludge at the bottom of the sedimentation separation device 6 is discharged for further treatment, part of the middle water phase is sent to a sewage treatment device 7 to be treated, part of the middle water phase is sent to a third heat exchange device 13 to be subjected to heat exchange and then is used as process circulating water, the process circulating water is cooled by the third heat exchange device 13 and then is sent to a condensation device 4 to provide spraying water for the condensation device, plant cooling water is used for heat exchange of the third heat exchange device 13, and hot water after heat exchange is discharged at the same time.
The first stage noncondensable gas after the defroster 5 is handled gets into first heat exchange equipment 9 and carries out the advanced treatment, and low boiling organic component and part of water are condensed and are retrieved, and first stage noncondensable gas obtains further processing, and the second stage noncondensable gas that obtains gets into the combustor burning of hot phase separation equipment 3, provides the heat for hot phase separation equipment 3, and resource recycle practices thrift the resource.
Fuels such as natural gas, diesel oil and the like are combusted in a combustor of the thermal phase separation equipment 3 to provide heat for indirectly heating the oily sludge, high-temperature flue gas with the temperature of 300-500 ℃ generated after the fuels such as the natural gas, the diesel oil and the like are combusted and exchange heat with plant cooling water in second heat exchange equipment 11, the flue gas cooled by the second heat exchange equipment 11 is discharged to the atmosphere, the high-temperature water after heat exchange provides heat for absorption type refrigeration equipment 10, the absorption type refrigeration equipment 10 utilizes the heat provided by the second heat exchange equipment 11 for refrigeration, the plant cooling water exchanges heat with the absorption type refrigeration equipment 10 to obtain chilled water with the temperature of 5-15 ℃, the chilled water is used as a cold source and enters first heat exchange equipment 9, organic substances with low condensation points in the non-condensable gas in the first stage are deeply condensed and recovered in the first heat exchange equipment 9, and the condensate of the non-condensable gas in the first stage, which is deeply condensed and recovered by the first heat exchange equipment 9, is collected into a condensate liquid collecting tank 12 for storage.
The application provides a set of complete and environment-friendly process system for deep condensation of mixed gas generated after thermal phase separation treatment; the waste heat recycling device is arranged, the flue gas heat refrigeration is utilized to carry out deep condensation treatment on the non-condensable gas in the first stage, the flue gas waste heat refrigeration is fully utilized to carry out deep condensation on the mixed gas generated after the oily sludge is treated by the thermal phase separation equipment, and the operation cost is low; a lithium bromide-water absorption type refrigeration mode is adopted, naturally existing water is used as a refrigerant to provide cold energy for first heat exchange equipment, and organic substances in the non-condensable gas in the first stage are deeply condensed and recovered; the device is harmless to the environment and the atmospheric ozone layer, the whole device is a heat exchanger except most parts, the operation is quiet, the vibration is small, and meanwhile, the refrigerator operates in a vacuum state, and the device is simple in structure, safe and reliable.
By adopting a multi-stage treatment mode, mixed gas generated after oily sludge is treated by the thermal phase separation equipment sequentially passes through the condensing equipment, the demister and the first heat exchange equipment, and water and organic substances are condensed and recycled thoroughly; and the treated non-condensable gas in the second stage enters a combustor of the thermal phase separation equipment for complete combustion, and is discharged from a chimney after meeting the emission standard of atmospheric pollutants, so that resource recycling can be realized.
To sum up, this patent can effectively recycle the flue gas waste heat through the implementation of above process systems, and the noncondensable gas of deep condensation processing to organic matter is retrieved in the condensation.
The utility model discloses what the key description in the above embodiment is different between each embodiment, and different optimization characteristics are as long as not contradictory between each embodiment, all can make up and form more preferred embodiment, consider that the literary composition is succinct, then no longer describe here.
The above are merely examples of the present invention, and are not intended to limit the present invention. Various modifications and changes may occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.
Claims (10)
1. A condensing system, comprising: the system comprises thermal phase separation equipment, condensing equipment, first heat exchange equipment, second heat exchange equipment and absorption refrigeration equipment;
the thermal phase separation equipment is provided with a high-temperature gas outlet and a flue gas outlet;
the condensing device has a gas inlet and an uncondensed gas outlet;
the first heat exchange device is provided with a first heat exchange gas inlet, a first cooling medium outlet, a non-condensable gas outlet and a first condensed liquid outlet;
the second heat exchange device is provided with a flue gas inlet, a flue gas discharge port, a second cooling medium inlet and a second cooling medium outlet;
the absorption refrigeration equipment is provided with a high-temperature medium inlet and a refrigeration medium outlet;
the high-temperature gas outlet is communicated with the gas inlet, the uncondensed gas outlet is communicated with the first heat exchange gas inlet, the first cooling medium inlet is communicated with the refrigerating medium outlet, the flue gas inlet is communicated with the flue gas outlet, and the second cooling medium outlet is communicated with the high-temperature medium inlet.
2. A condensing system according to claim 1, wherein the thermal phase separation apparatus comprises a burner, the non-condensable gas outlet being in communication with the burner.
3. A condensing system according to claim 1 wherein said absorption refrigeration equipment is a lithium bromide absorption refrigerator.
4. A condensing system according to claim 1, further comprising a condensed liquid collection tank, said first condensed liquid outlet communicating with said condensed liquid collection tank.
5. A condensing system according to claim 1, further comprising a demister gas channel and a demister liquid outlet, the uncondensed gas outlet communicating with the first heat exchange gas inlet through the demister gas channel.
6. The condensing system of claim 5, further comprising a settling separation apparatus comprising a settling separation material inlet, said demister liquid outlet communicating with said settling separation material inlet.
7. The condensing system of claim 6, wherein said condensing apparatus is a spray tower;
the condensing equipment further comprises a second condensed liquid inlet and a second condensed liquid outlet, and the second condensed liquid outlet is communicated with the sedimentation separation material inlet.
8. A condensing system according to claim 7, wherein said settling separation apparatus further comprises an upper liquid outlet and a middle liquid first outlet, said condensing system further comprising an oil tank and a sewage treatment apparatus, said upper liquid outlet being in communication with said oil tank, said middle liquid first outlet being in communication with said sewage treatment apparatus.
9. A condensing system according to claim 8, wherein said settling separation device further comprises a middle liquid second outlet, said condensing system further comprising a third heat exchange device comprising a third heat exchange liquid inlet and a third heat exchange liquid outlet, said middle liquid second outlet in communication with said third heat exchange liquid inlet, said third heat exchange liquid outlet in communication with said second condensed liquid inlet.
10. The condensing system of claim 1, further comprising a pretreatment apparatus and a feed apparatus in communication with the pretreatment apparatus, the feed apparatus in communication with the thermal phase separation apparatus.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120231469.1U CN214612089U (en) | 2021-01-27 | 2021-01-27 | Condensing system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120231469.1U CN214612089U (en) | 2021-01-27 | 2021-01-27 | Condensing system |
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| Publication Number | Publication Date |
|---|---|
| CN214612089U true CN214612089U (en) | 2021-11-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN202120231469.1U Active CN214612089U (en) | 2021-01-27 | 2021-01-27 | Condensing system |
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| CN (1) | CN214612089U (en) |
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2021
- 2021-01-27 CN CN202120231469.1U patent/CN214612089U/en active Active
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