CN113350959A - Waste gas condensation recovery system using condensing unit and environment-friendly treatment method - Google Patents
Waste gas condensation recovery system using condensing unit and environment-friendly treatment method Download PDFInfo
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- CN113350959A CN113350959A CN202110767824.1A CN202110767824A CN113350959A CN 113350959 A CN113350959 A CN 113350959A CN 202110767824 A CN202110767824 A CN 202110767824A CN 113350959 A CN113350959 A CN 113350959A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/002—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by condensation
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/14—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by absorption
- B01D53/18—Absorbing units; Liquid distributors therefor
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- Treating Waste Gases (AREA)
Abstract
The invention relates to the field of refrigeration, in particular to a waste gas condensation and recovery system utilizing a condensing unit and an environment-friendly treatment method. The method comprises the following steps: by utilizing the refrigeration technology, the temperature of the chilled water is reduced, the amount of gas fused into the water is increased, the chilled liquid and the oil gas are subjected to heat exchange again, and harmful gas in the tail gas can be fused into low-temperature liquid so as to be simply separated out; the vapor contained in the tail gas is condensed into liquid in the gas-liquid separator when meeting cold, and the liquid can be removed cleanly; the separated gas, namely light oil gas, is led to a combustion furnace for incineration through a gas-liquid separator, so that zero emission is realized.
Description
Technical Field
The invention relates to the field of refrigeration, in particular to a waste gas condensation and recovery system utilizing a condensing unit and an environment-friendly treatment method.
Background
In response to the requirement of environmental protection, a large amount of hot oil gas polluting air can be generated in the production of petroleum refining and the like, and the tail gas can be discharged in a green, safe and clean manner only after being separated and treated under the requirement of human beings on health and environment. The harmful hot tail gas is washed by two stages of water, most of the tail gas is dissolved in water and separated, but a small amount of harmful gas cannot be separated after two processes.
Disclosure of Invention
The purpose of the invention is as follows: in order to provide an exhaust gas condensation and recovery system utilizing a condensing unit with better effect, the specific purpose is to see a plurality of substantial technical effects of the specific implementation part.
In order to achieve the purpose, the invention adopts the following technical scheme:
the first scheme is as follows:
the waste gas condensation recovery system utilizing the condensing unit is characterized in that the recovery system comprises a refrigerating unit 2, and cold air from the refrigerating unit 2 can exchange heat with water in a circulating water tank 1; a chilled water outlet pipe and a chilled water inlet pipe extend out of the circulating water tank 1, the chilled water outlet pipe and the chilled water inlet pipe are introduced into a water-gas heat exchanger 6, and the water-gas heat exchanger 6 extends out of a pipeline and is connected with a gas-liquid separator 8; the chilled water outlet pipe and the chilled water inlet pipe are introduced into the water-air heat exchanger 6, so that the chilled water can cool the water-air heat exchanger 6, and organic matters are dissolved in the water as much as possible in the process.
The further technical scheme of the invention is that a pipeline connecting the gas-liquid separator 8 and the water-gas heat exchanger 6 is an air inlet pipe 7.
The further technical proposal of the invention is that the water-gas heat exchanger 6 comprises an inlet pipeline for the water-containing water-heat oil gas; the water-gas heat exchanger 6 also comprises a water inlet and a water outlet.
The invention further adopts the technical scheme that gas after gas-liquid separation enters a combustion furnace; the liquid enters a purification tower for further purification.
The further technical scheme of the invention is that a second group of chilled water outlet pipe and a chilled water inlet pipe extend out of the circulating water tank 1, and the chilled water outlet pipe and the chilled water inlet pipe of the second group are wound on the gas-liquid separator 8 for cooling.
Scheme II:
the waste gas recovery system is characterized in that the recovery system comprises a refrigerating unit 2, cold air from the refrigerating unit 2 can exchange heat with a heat exchange absorption part 9 in a circulating water tank 1, and the heat exchange absorption part 9 is arranged in the circulating water tank 1; the heat exchange absorption part 9 comprises an inlet pipeline 10 and an outlet pipeline 11 for hydrothermal oil gas; the heat exchange absorption part 9 is connected with the gas-liquid separator 8 through a pipeline.
The further technical scheme of the invention is that the cold air from the refrigerating unit 2 is divided into a path of connecting coil, and the coil is arranged on the gas-liquid separator 8 and can cool the gas-liquid separator.
The third scheme is as follows:
utilize waste gas condensation recovery system of condensing unit, its characterized in that, waste gas condensation recovery system is one of following arbitrary scheme:
the waste gas condensation recovery system of the condensing unit is utilized, the recovery system comprises a refrigerating unit 2, and cold air from the refrigerating unit 2 can exchange heat with water in a circulating water tank 1; a chilled water outlet pipe and a chilled water inlet pipe extend out of the circulating water tank 1, the chilled water outlet pipe and the chilled water inlet pipe are introduced into a water-gas heat exchanger 6, and the water-gas heat exchanger 6 extends out of a pipeline and is connected with a gas-liquid separator 8; the chilled water outlet pipe and the chilled water inlet pipe are introduced into the water-gas heat exchanger 6, so that chilled water can cool the water-gas heat exchanger 6, and organic matters are dissolved in water as much as possible in the process;
the oil-water separator and the gas absorption device are a multi-path cooled waste gas recovery system, the recovery system comprises a refrigerating unit 2, cold air from the refrigerating unit 2 can exchange heat with a heat exchange absorption part 9 in a circulating water tank 1, and the heat exchange absorption part 9 is arranged in the circulating water tank 1; the heat exchange absorption part 9 comprises an inlet pipeline 10 and an outlet pipeline 11 for hydrothermal oil gas; the heat exchange absorption part 9 is connected with the gas-liquid separator 8 through a pipeline.
The environment-friendly treatment method utilizing the condensing unit is characterized in that the recovery system comprises the following methods: by utilizing the refrigeration technology, the temperature of the chilled water is reduced, the amount of gas fused into the water is increased, the chilled liquid and the oil gas are subjected to heat exchange again, and harmful gas in the tail gas can be fused into low-temperature liquid so as to be simply separated out; the vapor contained in the tail gas is condensed into liquid in the gas-liquid separator when meeting cold, and the liquid can be removed cleanly; the separated gas, namely light oil gas, is led to a combustion furnace for incineration through a gas-liquid separator, so that zero emission is realized.
Compared with the prior art, the invention adopting the technical scheme has the following beneficial effects: by utilizing the refrigeration technology, the temperature of the chilled water is reduced, the amount of the dissolved gas is increased, the chilled liquid and the oil gas are subjected to heat exchange again, and the harmful gas in the tail gas can be dissolved into the low-temperature liquid, so that the harmful gas can be simply separated; the water vapor contained in the tail gas is condensed into liquid when meeting cold and can be removed cleanly; still very little light oil gas leads to burning furnace burning through vapour and liquid separator, really realizes the zero release, has used our oil-gas separation cooler to realized that exhaust emission reaches national environmental protection standard requirement.
Drawings
To further illustrate the present invention, further description is provided below with reference to the accompanying drawings:
FIG. 1 is a block diagram of the purification apparatus of the present invention;
FIG. 2 is a layout view of a purification apparatus;
FIG. 3 is a perspective view of the novel interior;
FIG. 4 is a schematic diagram of the invention;
FIG. 5 is a schematic view of a further development of the invention;
FIG. 6 is a schematic view of the arrangement in the heat exchange box of FIG. 5;
wherein: 1. a circulating water tank; 2. a refrigeration unit; 3. an air outlet; 4. an external water circulation pump; 5. a water outlet pipe; 6. a water-gas heat exchanger; 7. an air inlet pipe; 8. a gas-liquid separator; 9. a heat exchange absorption part; 10. an inlet pipe containing hydrothermal oil gas; 11. an outlet conduit.
Detailed Description
The present invention will be further illustrated with reference to the accompanying drawings and specific embodiments, which are to be understood as merely illustrative of the invention and not as limiting the scope of the invention. In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", "top", "bottom", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, as they may be fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
The patent provides a plurality of parallel schemes, and different expressions belong to an improved scheme based on a basic scheme or a parallel scheme. Each solution has its own unique features. In addition, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other. The fixing means, which is not described herein, may be any one of screw fixing, bolt fixing, or glue bonding.
The first embodiment is as follows: combining fig. 1 and 2 with fig. 3 and 4; the waste gas condensation recovery system utilizing the condensing unit is characterized in that the recovery system comprises a refrigerating unit 2, and cold air from the refrigerating unit 2 can exchange heat with water in a circulating water tank 1; a chilled water outlet pipe and a chilled water inlet pipe extend out of the circulating water tank 1, the chilled water outlet pipe and the chilled water inlet pipe are introduced into a water-gas heat exchanger 6, and the water-gas heat exchanger 6 extends out of a pipeline and is connected with a gas-liquid separator 8; the chilled water outlet pipe and the chilled water inlet pipe are introduced into the water-air heat exchanger 6, so that the chilled water can cool the water-air heat exchanger 6, and organic matters are dissolved in the water as much as possible in the process. The technical scheme of the invention has the following substantial technical effects and the realization process: the environment-friendly treatment method utilizing the condensing unit is characterized in that the recovery system comprises the following methods: by utilizing the refrigeration technology, the temperature of the chilled water is reduced, the amount of gas fused into the water is increased, the chilled liquid and the oil gas are subjected to heat exchange again, and harmful gas in the tail gas can be fused into low-temperature liquid so as to be simply separated out; the vapor contained in the tail gas is condensed into liquid in the gas-liquid separator when meeting cold, and the liquid can be removed cleanly; the separated gas, namely light oil gas, is led to a combustion furnace for incineration through a gas-liquid separator, so that zero emission is realized.
Example two: as a further improvement or a parallel scheme or an alternative independent scheme, the pipeline connecting the gas-liquid separator 8 and the water-gas heat exchanger 6 is an air inlet pipe 7.
Example three: as a further improved scheme or a parallel scheme or an optional independent scheme, the water-gas heat exchanger 6 comprises an inlet pipeline for feeding the hydrothermal oil gas; the water-gas heat exchanger 6 also comprises a water inlet and a water outlet. The technical scheme of the invention has the following substantial technical effects and the realization process: the water inlet and the water outlet can feed water and can absorb hot oil gas containing water.
Example four: as a further improved scheme or a parallel scheme or an optional independent scheme, gas after gas-liquid separation enters a combustion furnace; the liquid enters a purification tower for further purification.
Example five: as a further improvement scheme or a parallel scheme or an optional independent scheme, a second group of chilled water outlet pipes and chilled water inlet pipes extend out of the circulating water tank 1, and the chilled water outlet pipes and the chilled water inlet pipes of the second group are wound on the gas-liquid separator 8 to reduce the temperature. The technical scheme of the invention has the following substantial technical effects and the realization process: the gas-liquid separator 8 can perform gas-liquid separation in a low temperature state.
Scheme II:
example six: as a further improved scheme or a parallel scheme or a selectable independent scheme, the waste gas recovery system with multi-path cooling of the oil-water separator and the gas absorption device is characterized in that the recovery system comprises a refrigerating unit 2, cold air from the refrigerating unit 2 can exchange heat with a heat exchange absorption part 9 in a circulating water tank 1, and the heat exchange absorption part 9 is arranged in the circulating water tank 1; the heat exchange absorption part 9 comprises an inlet pipeline 10 and an outlet pipeline 11 for hydrothermal oil gas; the heat exchange absorption part 9 is connected with the gas-liquid separator 8 through a pipeline. The technical scheme of the invention has the following substantial technical effects and the realization process: compared with the first embodiment, the cold air is directly adopted to construct the low-temperature environment, the low-temperature environment is constructed in the heat exchange absorption part 9, and the cold source loss is relatively low.
Example seven: as a further improvement scheme or a parallel scheme or an optional independent scheme, the cold air from the refrigerating unit 2 is also divided into a path of connecting coil, and the coil is arranged on the gas-liquid separator 8 and can cool the gas-liquid separator.
The third scheme is as follows:
example eight: as a further improvement scheme or a parallel scheme or an optional independent scheme, the waste gas condensation recovery system utilizing the condensing unit is characterized in that the waste gas condensation recovery system is one of the following schemes:
the waste gas condensation recovery system of the condensing unit is utilized, the recovery system comprises a refrigerating unit 2, and cold air from the refrigerating unit 2 can exchange heat with water in a circulating water tank 1; a chilled water outlet pipe and a chilled water inlet pipe extend out of the circulating water tank 1, the chilled water outlet pipe and the chilled water inlet pipe are introduced into a water-gas heat exchanger 6, and the water-gas heat exchanger 6 extends out of a pipeline and is connected with a gas-liquid separator 8; the chilled water outlet pipe and the chilled water inlet pipe are introduced into the water-gas heat exchanger 6, so that chilled water can cool the water-gas heat exchanger 6, and organic matters are dissolved in water as much as possible in the process;
the oil-water separator and the gas absorption device are a multi-path cooled waste gas recovery system, the recovery system comprises a refrigerating unit 2, cold air from the refrigerating unit 2 can exchange heat with a heat exchange absorption part 9 in a circulating water tank 1, and the heat exchange absorption part 9 is arranged in the circulating water tank 1; the heat exchange absorption part 9 comprises an inlet pipeline 10 and an outlet pipeline 11 for hydrothermal oil gas; the heat exchange absorption part 9 is connected with the gas-liquid separator 8 through a pipeline.
Example nine: as a further development or in parallel or alternatively independently, a process for the environmental treatment by means of a condensation train, characterized in that it comprises, by means of a recovery system as described above, the following processes: by utilizing the refrigeration technology, the temperature of the chilled water is reduced, the amount of gas fused into the water is increased, the chilled liquid and the oil gas are subjected to heat exchange again, and harmful gas in the tail gas can be fused into low-temperature liquid so as to be simply separated out; the vapor contained in the tail gas is condensed into liquid in the gas-liquid separator when meeting cold, and the liquid can be removed cleanly; the separated gas, namely light oil gas, is led to a combustion furnace for incineration through a gas-liquid separator, so that zero emission is realized.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are intended to illustrate the principles of the invention, but that various changes and modifications may be made without departing from the spirit and scope of the invention, and the invention is to be limited to the embodiments described above.
Claims (2)
1. Utilize waste gas condensation recovery system of condensing unit, its characterized in that, waste gas condensation recovery system is one of following arbitrary scheme:
the waste gas condensation recovery system of the condensing unit is utilized, the recovery system comprises a refrigerating unit (2), and cold air from the refrigerating unit (2) can exchange heat with water in a circulating water tank (1); a chilled water outlet pipe and a chilled water inlet pipe extend out of the circulating water tank (1), the chilled water outlet pipe and the chilled water inlet pipe are introduced into a water-gas heat exchanger (6), and the water-gas heat exchanger (6) extends out of a pipeline and is connected with a gas-liquid separator (8); the chilled water outlet pipe and the chilled water inlet pipe are introduced into the water-gas heat exchanger (6), so that chilled water can cool the water-gas heat exchanger (6), and organic matters are dissolved in water as much as possible in the process;
the waste gas recovery system comprises an oil-water separator and a gas absorption device, and is cooled in a multi-path mode, the recovery system comprises a refrigerating unit (2), cold air discharged from the refrigerating unit (2) can exchange heat with a heat exchange absorption part (9) in a circulating water tank (1), and the heat exchange absorption part (9) is arranged in the circulating water tank (1); the heat exchange absorption part (9) comprises an inlet pipeline (10) and an outlet pipeline (11) for hydrothermal oil gas; the heat exchange absorption part (9) is connected with the gas-liquid separator (8) through a pipeline.
2. An environmentally friendly process utilizing a condensing unit, characterized in that the recovery system of claim 1 is utilized, comprising the steps of: by utilizing the refrigeration technology, the temperature of the chilled water is reduced, the amount of gas fused into the water is increased, the chilled liquid and the oil gas are subjected to heat exchange again, and harmful gas in the tail gas can be fused into low-temperature liquid so as to be simply separated out; the vapor contained in the tail gas is condensed into liquid in the gas-liquid separator when meeting cold, and the liquid can be removed cleanly; the separated gas, namely light oil gas, is led to a combustion furnace for incineration through a gas-liquid separator, so that zero emission is realized.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110767824.1A CN113350959A (en) | 2021-07-07 | 2021-07-07 | Waste gas condensation recovery system using condensing unit and environment-friendly treatment method |
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| CN202110767824.1A CN113350959A (en) | 2021-07-07 | 2021-07-07 | Waste gas condensation recovery system using condensing unit and environment-friendly treatment method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113713557A (en) * | 2021-11-04 | 2021-11-30 | 瑞润化工(南通)有限公司 | UV photocuring coating equipment exhaust treatment device |
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| CN102441309A (en) * | 2010-10-12 | 2012-05-09 | 中国石油化工股份有限公司 | Method for recovering oil gas and device |
| CN102464999A (en) * | 2010-11-05 | 2012-05-23 | 中国石油化工股份有限公司 | Oil gas absorption recovering method |
| CN202246576U (en) * | 2011-10-17 | 2012-05-30 | 中国石油化工股份有限公司 | Low-temperature condensation absorption recycling device for oil gas |
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