CN214635142U - Storage tank VOCs draws and penetrates separation condensing system - Google Patents
Storage tank VOCs draws and penetrates separation condensing system Download PDFInfo
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- CN214635142U CN214635142U CN202120129819.3U CN202120129819U CN214635142U CN 214635142 U CN214635142 U CN 214635142U CN 202120129819 U CN202120129819 U CN 202120129819U CN 214635142 U CN214635142 U CN 214635142U
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- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
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Abstract
The utility model discloses a storage tank VOCs ejecting separation condensing system, which comprises an ejector, a supersonic cyclone separator and a coil heat exchange gas-liquid separator; the inlet of the ejector is connected with the fuel gas pipe of the heating furnace, and the ejection fluid inlet of the ejector is communicated with the upper gas cavity in the oil tank; the mixed fluid outlet of the ejector is connected with the inlet of the supersonic cyclone separator; the gas phase outlet of the supersonic cyclone separator is connected with a fuel gas inlet of the heating furnace, and the liquid phase outlet of the supersonic cyclone separator is connected with a medium inlet of the coil heat exchange gas-liquid separator; a top gas-phase outlet of the coil heat exchange gas-liquid separator is communicated to the gas conveying pipe, and a bottom liquid-phase outlet of the coil heat exchange gas-liquid separator is connected with a heavy hydrocarbon recovery pipeline; the coil heat exchange gas-liquid separator is internally provided with a heat exchange coil which is connected with a cold source supply part. The utility model discloses a supersonic speed hydrocyclone + coil pipe trades vapour and liquid separator's combination setting, has realized condensing twice of heavy hydrocarbon in the gas, has improved the rate of recovery of heavy hydrocarbon.
Description
Technical Field
The utility model belongs to the technical field of storage tank volatile organic compounds retrieves, concretely relates to storage tank VOCs draws and penetrates separation condensing system.
Background
Oil receiving and sending operations and standing respiration of the storage tank are one of important sources of Volatile Organic Compounds (VOCs) in a factory, and the emission of the Volatile Organic Compounds (VOCs) causes harm to the atmosphere, the environment and the health of human beings. With the increasing importance of the country on environmental protection, VOCs in the storage tank need to be treated.
At present, an air extractor is mostly adopted for extracting VOCs in a storage tank, and then the extracted VOCs are directly introduced into open fire equipment such as a thermal oxidation furnace, a heat storage oxidation furnace, a heating furnace and the like for incineration treatment. However, the extracted VOCs may contain a portion of vaporized heavy hydrocarbons and heavy hydrocarbon droplets, and direct incineration may result in loss of oil in the storage tank. Therefore, it is necessary to recover the heavy hydrocarbons therein.
Based on this, this application provides a storage tank VOCs draws and penetrates separation condensing system, and this system passes through supersonic speed cyclone, the coil pipe trades hot gas-liquid separator's combination setting, has realized that twice cooling of heavy hydrocarbon is condensed in the gas, has improved the rate of recovery of heavy hydrocarbon among the VOCs.
SUMMERY OF THE UTILITY MODEL
The utility model aims at overcoming the not enough of above-mentioned prior art, provide a storage tank VOCs draws and penetrates separation condensing system.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a storage tank VOCs draws and penetrates separation condensing system includes
The ejector is used for ejecting gas at the upper part of the oil tank;
the supersonic cyclone separator is used for carrying out gas-liquid separation on the gas at the outlet of the ejector;
the coil heat exchange gas-liquid separator is used for condensing and separating the mixed medium at the liquid phase outlet of the supersonic cyclone separator;
the working fluid inlet of the ejector is connected with a fuel gas pipe of the heating furnace, and the ejection fluid inlet of the ejector is communicated with the upper gas cavity in the oil tank through an ejection pipe;
the mixed fluid outlet of the ejector is connected with the inlet of the supersonic cyclone separator; the gas phase outlet of the supersonic cyclone separator is connected with the fuel gas inlet of the heating furnace through a gas conveying pipe; the liquid phase outlet of the supersonic cyclone separator is connected with the medium inlet of the coil heat exchange gas-liquid separator;
a top gas-phase outlet of the coil heat exchange gas-liquid separator is communicated to the gas conveying pipe, and a bottom liquid-phase outlet of the coil heat exchange gas-liquid separator is connected with a heavy hydrocarbon recovery pipeline;
the coil heat exchange gas-liquid separator is internally provided with a heat exchange coil which is spirally coiled and used for supplying cold source to flow, and the heat exchange coil is connected with a cold source supply part.
Preferably, the coil heat exchange gas-liquid separator comprises a separation shell in a vertical structure;
a medium inlet is arranged at the lower part of the side surface of the separation shell, a top gas phase outlet is arranged at the top of the separation shell, and a bottom liquid phase outlet is arranged at the bottom of the separation shell;
the heat exchange coil is arranged in the separation shell and is spirally coiled along the axial direction of the separation shell;
and the lower inlet end and the upper outlet end of the heat exchange coil penetrate through the side wall of the separation shell.
Preferably, a coalescence plate is arranged in the separation shell at the lower part of the top gas phase outlet; a gas circulation gap is reserved between the coalescence plate and the inner wall of the separation shell;
the top of the coalescence plate is fixedly connected with the inner side top wall of the separation shell through a plurality of support rods.
Preferably, the coalescence plate is of a conical surface structure with a thin upper part and a thick lower part.
Preferably, the cold source supply part is a vortex tube;
the inlet of the vortex tube is connected with a fuel gas tube of the heating furnace;
the cold flow outlet of the vortex tube is connected with the lower inlet end of the heat exchange coil through a cold source supply tube, and the upper outlet end of the heat exchange coil is connected with the inlet of the vortex tube through a cold source circulating tube; and the heat flow outlet of the vortex tube is communicated with the gas delivery pipe.
Preferably, a pressure sensor for detecting the pressure in the upper air cavity is arranged in the oil tank;
the injection pipe is provided with an electromagnetic valve;
the pressure sensor is connected with a controller, and the controller is electrically connected with the electromagnetic valve.
The utility model has the advantages that:
(1) the utility model discloses storage tank VOCs draws and penetrates separation condensing system passes through supersonic speed cyclone + coil pipe heat transfer vapour and liquid separator's combination setting, has realized that the twice cooling of heavy hydrocarbon condenses in the gas, has consequently improved the rate of recovery of heavy hydrocarbon.
(2) The utility model adopts the ejector to eject the gas in the oil tank, wherein the ejector adopts the original heating furnace fuel gas of the factory as high-energy high-speed flow, does not need extra external energy, and reduces the energy consumption; meanwhile, the ejector is small in size and low in price, and the occupied area and the input cost of equipment are reduced.
(3) The cold source in the heat exchange coil pipe of the utility model is directly obtained by decomposing the fuel gas of the heating furnace in the factory through the vortex tube, and the material is convenient to obtain; and the high-temperature gas flow decomposed by the vortex tube is conveyed to the heating furnace to be used as fuel gas, and the combustion can be fully ensured by increasing the temperature, so that the utilization rate of the fuel gas is increased.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the application and, together with the description, serve to explain the application and are not intended to limit the application.
FIG. 1 is a perspective view of the storage tank VOCs injection separation condensing system of the present invention;
FIG. 2 is a schematic structural view of the coiled gas-liquid separator of the present invention;
wherein the content of the first and second substances,
01-oil tank;
1-an ejector; 2-supersonic cyclone separator;
3-coil heat exchange gas-liquid separator, 301-separation shell, 302-heat exchange coil, 303-medium inlet, 304-top gas phase outlet, 305-bottom liquid phase outlet, 306-coalescence plate, 307-gas circulation gap, 308-support rod;
4-heating furnace fuel gas pipe; a 5-heavy hydrocarbon recovery line; 6-gas conveying pipe; 7-an injection pipe, 701-an electromagnetic valve; 8-vortex tube, 801-cold source supply tube and 802-cold source circulation tube.
Detailed Description
It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the disclosure. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.
In the present invention, the terms such as "upper", "lower", "bottom", "top" and the like indicate the position or positional relationship based on the position or positional relationship shown in the drawings, and the relationship term determined only for the convenience of describing the structural relationship of each component or element of the present invention is not particularly referred to any component or element of the present invention, and the limitation of the present invention cannot be understood.
In the present invention, terms such as "connected" and "connected" should be understood in a broad sense, and may be either fixedly connected or integrally connected or detachably connected; may be directly connected or indirectly connected through an intermediate. The meaning of the above terms in the present invention can be determined according to specific situations by persons skilled in the art, and should not be construed as limiting the present invention.
The present invention will be further explained with reference to the drawings and examples.
As shown in figure 1, a storage tank VOCs injection separation condensing system comprises
An ejector 1 for ejecting gas at the upper part of the oil tank 01;
a supersonic cyclone separator 2 for separating gas from liquid at the outlet of the ejector 1; the supersonic cyclone separator 2 is in the prior art, the supersonic cyclone separator mainly comprises components such as a Laval nozzle, a supersonic rectifier tube, a cyclone, a diffuser and the like, the entering gas can generate a low-temperature and low-pressure environment through the Laval nozzle, so that condensable components in the gas can be condensed, and the condensed liquid drops can be separated by generating a huge centrifugal force through the cyclone;
a coil heat exchange gas-liquid separator 3 for condensing and separating the mixed medium at the liquid phase outlet of the supersonic cyclone separator 2;
the working fluid inlet of the ejector 1 is connected with the fuel gas pipe 4 of the heating furnace, namely the high-speed high-energy flow of the ejector 1 adopts the original heating furnace fuel gas of a factory area, and the ejection fluid inlet of the ejector 1 is communicated with the upper air cavity in the oil tank 01 through an ejection pipe 7;
the mixed fluid outlet of the ejector 1 is connected with the inlet of the supersonic cyclone separator 2; the gas phase outlet of the supersonic cyclone separator 2 is connected with the fuel gas inlet of the heating furnace through a gas conveying pipe 6; the liquid phase outlet of the supersonic cyclone separator 2 is connected with the medium inlet 303 of the coil heat exchange gas-liquid separator 3;
a top gas-phase outlet 304 of the coil heat exchange gas-liquid separator 3 is communicated to the gas conveying pipe 6, and a bottom liquid-phase outlet 305 of the coil heat exchange gas-liquid separator 3 is connected with the heavy hydrocarbon recovery pipeline 5;
the coil heat exchange gas-liquid separator 3 is internally provided with a heat exchange coil 302 which is spirally coiled and used for supplying cold source to flow, and the heat exchange coil 302 is connected with a cold source supply part.
Preferably, as shown in fig. 2, the coiled heat exchange gas-liquid separator 3 includes a separation housing 301 in a vertical structure;
a medium inlet 303 is arranged at the lower part of the side surface of the separation shell 301, a top gas phase outlet 304 is arranged at the top of the separation shell 301, and a bottom liquid phase outlet 305 is arranged at the bottom of the separation shell 301;
the heat exchange coil 302 is arranged in the separation shell 301 and spirally wound along the axial direction of the separation shell 301;
the lower inlet end and the upper outlet end of the heat exchange coil 302 penetrate through the side wall of the separation shell 301.
Preferably, a coalescing plate 306 is arranged in the separation shell 301 below the top gas phase outlet 304; a gas circulation gap 307 is reserved between the coalescence plate 306 and the inner wall of the separation shell 301;
the top of the coalescing plate 306 is fixedly connected to the inner top wall of the separation housing 301 by a plurality of support rods 308.
Preferably, the coalescence plate 306 has a tapered structure with a thin upper part and a thick lower part.
Preferably, the cold source supply part is a vortex tube 8;
the inlet of the vortex tube 8 is connected with the fuel gas pipe 4 of the heating furnace;
the cold flow outlet of the vortex tube 8 is connected with the lower inlet end of the heat exchange coil 302 through a cold source supply tube 801, and the upper outlet end of the heat exchange coil 302 is connected with the inlet of the vortex tube 8 through a cold source circulating tube 802; the heat flow outlet of the vortex tube 8 is communicated with the gas delivery pipe 6.
Therefore, in the application, the vortex tube 8 decomposes the original heating furnace fuel gas in the plant area into low-temperature gas flow and high-temperature gas flow, wherein the low-temperature gas flow is conveyed to the heat exchange coil 302 through the cold source supply tube 801 to be used as a cold source, and the low-temperature gas flow absorbing heat is conveyed back to the inlet of the vortex tube 8 through the cold source circulating tube 802 again to realize recycling; and the high-temperature gas flow is conveyed into the heating furnace in the plant area through the gas conveying pipe 6 to be used as fuel gas. On one hand, the cold source in the heat exchange coil 302 is obtained by directly decomposing fuel gas of a heating furnace in a plant area through the vortex tube 8, and the material is convenient to obtain; on the other hand, in the gas conveying pipe 6, the high-temperature gas flow decomposed by the vortex tube 8 is mixed with the gas separated by the supersonic cyclone separator 2 and the gas separated by the coil heat exchange gas-liquid separator 3, the temperature of the gas is increased by adding the high-temperature gas flow, namely the temperature of the gas serving as the fuel gas of the heating furnace is increased, the sufficient combustion can be ensured by increasing the temperature, and the utilization rate of the fuel gas is improved.
Preferably, a pressure sensor for detecting the pressure in the upper air cavity is arranged in the oil tank 01;
the injection pipe 7 is provided with an electromagnetic valve 701;
the pressure sensor is connected to a controller, which is electrically connected to the solenoid valve 701.
In the process of injecting the gas in the oil tank 01 by the injector 1, the pressure sensor detects the air pressure in the oil tank 01, and when the air pressure is lower than a set value, the controller controls the electromagnetic valve 701 to be closed to prevent the oil tank from being deflated.
Specifically, a compressor for providing power is arranged on a corresponding pipeline in the system to realize normal transportation of gas in the system, for example, the compressor is arranged on an inlet pipeline of the ejector 1 and an inlet pipeline of the vortex tube 8; wherein the setting of compressor on the gas pipeline is prior art, and according to actual conditions specific setting, the specific position, the quantity of setting of compressor are no longer repeated herein.
The utility model provides a storage tank VOCs draws and penetrates separation condensing system, its embodiment as follows:
the original heating furnace fuel gas in a factory area is used as the gas in the high-speed high-energy flow injection oil tank 01, and then the mixed gas enters the supersonic cyclone separator 2; in the supersonic cyclone separator 2, the heavy hydrocarbon components are condensed and separated and discharged from a liquid phase outlet, the heavy hydrocarbon components discharged from the liquid phase outlet of the supersonic cyclone separator 2 can carry gas, and the part of mixed medium enters the coil heat exchange gas-liquid separator 3 for further separation; and the gas separated by the supersonic cyclone separator 2 enters the gas conveying pipe 6 through a gas phase outlet.
The mixed medium enters the separation vessel 301 through the lower medium inlet 303 wherein the liquid phase moves downwardly under gravity until it enters the heavy hydrocarbon recovery line 5 through the bottom liquid phase outlet 305; gaseous phase upward movement, upward the in-process of moving carries out the heat transfer cooling with the cold source in the heat transfer coil pipe 302, makes the heavy hydrocarbon component in the gas further condense into the liquid droplet, and when the gaseous phase that contains the liquid droplet that condenses arrived coalescence board 306 upwards, the liquid droplet coalesces into the liquid film on coalescence board 306 and slides down along conical surface coalescence board 306, drops to separation casing 301 lower part until, enters into heavy hydrocarbon recovery pipeline 5 by bottom liquid phase outlet 305, has improved the rate of recovery of heavy hydrocarbon. And gas enters the gas delivery tube 6 from the top gas phase outlet 304 through the gas flow gap 307. Therefore, this application supersonic cyclone 2+ coil pipe trades hot gas-liquid separator 3's combination setting, has realized twice cooling of heavy hydrocarbon among the VOCs and has condensed, has consequently promoted the rate of recovery of heavy hydrocarbon.
Meanwhile, after absorbing heat, the cold source in the heat exchange coil 302 returns to the inlet of the vortex tube 8 again through the cold source circulating tube 802, so that circulation is realized; the high-temperature airflow decomposed by the vortex tube 8 is mixed with the gas separated by the supersonic cyclone separator 2 and the gas separated by the coil heat exchange gas-liquid separator 3 in the gas conveying pipe 6, the temperature of the gas is increased by adding the high-temperature airflow, namely the temperature of the gas serving as the fuel gas of the heating furnace is increased, and the sufficient combustion can be ensured by increasing the temperature, so that the utilization rate of the fuel gas is improved.
Although the present invention has been described with reference to the accompanying drawings, it is not intended to limit the present invention, and those skilled in the art should understand that, based on the technical solution of the present invention, various modifications or variations that can be made by those skilled in the art without inventive labor are still within the scope of the present invention.
Claims (6)
1. A storage tank VOCs draws and penetrates separation condensing system, characterized by including
The ejector is used for ejecting gas at the upper part of the oil tank;
the supersonic cyclone separator is used for carrying out gas-liquid separation on the gas at the outlet of the ejector;
the coil heat exchange gas-liquid separator is used for condensing and separating the mixed medium at the liquid phase outlet of the supersonic cyclone separator;
the working fluid inlet of the ejector is connected with a fuel gas pipe of the heating furnace, and the ejection fluid inlet of the ejector is communicated with the upper gas cavity in the oil tank through an ejection pipe;
the mixed fluid outlet of the ejector is connected with the inlet of the supersonic cyclone separator; the gas phase outlet of the supersonic cyclone separator is connected with the fuel gas inlet of the heating furnace through a gas conveying pipe; the liquid phase outlet of the supersonic cyclone separator is connected with the medium inlet of the coil heat exchange gas-liquid separator;
a top gas-phase outlet of the coil heat exchange gas-liquid separator is communicated to the gas conveying pipe, and a bottom liquid-phase outlet of the coil heat exchange gas-liquid separator is connected with a heavy hydrocarbon recovery pipeline;
the coil heat exchange gas-liquid separator is internally provided with a heat exchange coil which is spirally coiled and used for supplying cold source to flow, and the heat exchange coil is connected with a cold source supply part.
2. The storage tank VOCs ejector separation condensing system of claim 1 wherein the coiled heat exchange gas-liquid separator comprises a separation shell in a vertical configuration;
a medium inlet is arranged at the lower part of the side surface of the separation shell, a top gas phase outlet is arranged at the top of the separation shell, and a bottom liquid phase outlet is arranged at the bottom of the separation shell;
the heat exchange coil is arranged in the separation shell and is spirally coiled along the axial direction of the separation shell;
and the lower inlet end and the upper outlet end of the heat exchange coil penetrate through the side wall of the separation shell.
3. The storage tank VOCs ejector separation condenser system of claim 2, wherein a coalescing plate is disposed in the separation housing below the top gas phase outlet; a gas circulation gap is reserved between the coalescence plate and the inner wall of the separation shell;
the top of the coalescence plate is fixedly connected with the inner side top wall of the separation shell through a plurality of support rods.
4. The system of claim 3 wherein the coalescing plate is tapered with a narrow top and a wide bottom.
5. The system for separation and condensation of VOCs in a storage tank of claim 2, wherein said cold source supply member is a vortex tube;
the inlet of the vortex tube is connected with a fuel gas tube of the heating furnace;
the cold flow outlet of the vortex tube is connected with the lower inlet end of the heat exchange coil through a cold source supply tube, and the upper outlet end of the heat exchange coil is connected with the inlet of the vortex tube through a cold source circulating tube; and the heat flow outlet of the vortex tube is communicated with the gas delivery pipe.
6. The storage tank VOCs ejector separation condensing system of claim 1 wherein a pressure sensor is located in the oil tank for sensing pressure in the upper air cavity;
the injection pipe is provided with an electromagnetic valve;
the pressure sensor is connected with a controller, and the controller is electrically connected with the electromagnetic valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120129819.3U CN214635142U (en) | 2021-01-19 | 2021-01-19 | Storage tank VOCs draws and penetrates separation condensing system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202120129819.3U CN214635142U (en) | 2021-01-19 | 2021-01-19 | Storage tank VOCs draws and penetrates separation condensing system |
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| CN214635142U true CN214635142U (en) | 2021-11-09 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116899361A (en) * | 2023-07-17 | 2023-10-20 | 江苏利锦莱德固废综合利用有限公司 | Low-cost VOC recovery system |
| CN117267732A (en) * | 2023-09-20 | 2023-12-22 | 广东一诚环保科技有限公司 | Intelligent multistage VOCS waste gas purification system |
| CN117401313A (en) * | 2023-12-12 | 2024-01-16 | 德州能奥石油科技有限公司 | Oil field large tank top air extraction system |
-
2021
- 2021-01-19 CN CN202120129819.3U patent/CN214635142U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116899361A (en) * | 2023-07-17 | 2023-10-20 | 江苏利锦莱德固废综合利用有限公司 | Low-cost VOC recovery system |
| CN116899361B (en) * | 2023-07-17 | 2024-05-03 | 江苏利锦莱德固废综合利用有限公司 | Low-cost VOC recovery system |
| CN117267732A (en) * | 2023-09-20 | 2023-12-22 | 广东一诚环保科技有限公司 | Intelligent multistage VOCS waste gas purification system |
| CN117267732B (en) * | 2023-09-20 | 2024-06-07 | 广东一诚环保科技有限公司 | Intelligent multistage VOCS waste gas purification system |
| CN117401313A (en) * | 2023-12-12 | 2024-01-16 | 德州能奥石油科技有限公司 | Oil field large tank top air extraction system |
| CN117401313B (en) * | 2023-12-12 | 2024-02-09 | 德州能奥石油科技有限公司 | Oil field large tank top air extraction system |
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