Method and system for centralized flue gas emission in park atmosphere treatment
By integrating multiple chimneys into a main chimney and designing a clustered flue gas emission system, the problem of wasteful land use caused by numerous chimneys in the refining and chemical project has been solved, and efficient management and environmental control of centralized flue gas emission have been achieved.
Patent Information
- Application Number
- CN202410785785.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-18
- Publication Date
- 2026-02-13
- Estimated Expiration
- 2044-06-18
AI Technical Summary
In integrated refining and chemical projects, the numerous chimneys of multiple units result in a large land area occupied, making environmental pollution monitoring inconvenient. Furthermore, each individual chimney occupies a large area, wasting plant resources.
By analyzing the operational and basic data of each chimney, multiple chimneys are integrated into a main chimney, and a multi-tube bundle flue gas emission system is designed. Combined with a DCS detection system, flue gas emission indicators are monitored and adjusted to achieve centralized flue gas emission.
The number of chimneys and the area they occupy have been reduced, construction costs and difficulties have been lowered, construction progress has been accelerated, and the management efficiency of flue gas emissions and the ability to control environmental indicators have been improved.
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Figure CN118568905B_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the field of environmental protection technology for petroleum refining, in particular, especially relates to a park atmospheric treatment flue gas centralized discharge method and system. BACKGROUND
[0002] There are many devices in the integrated refining and chemical projects, and the waste heat boilers and the coke burning tail gas after purification need to be discharged through chimneys. For some integrated refining and chemical projects, a single refinery needs to set up chimneys to discharge tail gas, with 10-20 sets of devices at least and 30-50 sets of devices at most, resulting in many chimneys in the chemical plant, which brings inconvenience to environmental pollution detection, in addition, a single chimney occupies an area of about 500 square meters, and all the chimneys occupy a wide area, which wastes the ground resources of the plant. SUMMARY
[0003] According to the above technical problems, a park atmospheric treatment flue gas centralized discharge method and system are provided.
[0004] The technical means adopted by the present application are as follows:
[0005] A park atmospheric treatment flue gas centralized discharge method comprises the following steps:
[0006] Step 1, obtaining basic data and operation data of chimneys to be built or built in the park;
[0007] Step 2, first considering the operation data of each chimney, according to the flue gas composition difference generated by different fuel components of the device heating furnace, the flue gas is integrated and discharged, according to the operation data of the flue gas, a multi-tube cluster flue gas discharge system is set, and several sub-chimneys within the preset index range are integrated into a main chimney;
[0008] Step 3, considering the basic data of each chimney again, considering the relationship between the device establishment position, the difficulty of flue arrangement, the length of flue arrangement, and finding the most reasonable position to set up the integrated discharge chimney;
[0009] Step 4, comprehensively considering the factors of step 2 and step 3, judging the integrated chimney designed in step 2 and step 3 with the preset influence factor, until the optimal number and specific flue gas discharge sub-chimney, and the basic data of the main chimney after integration of each sub-chimney are obtained;
[0010] Step 5, according to the obtained flue gas dust content data, calculating the pollutant emission concentration, and designing the overall height of the main chimney.
[0011] Further, the basic data includes the setting area, the occupied area and the height data of the chimney.
[0012] Further, the operation data includes the chimney emission composition, temperature, humidity, dust amount, sulfur content, and pressure.
[0013] A park atmospheric treatment flue gas centralized discharge system comprises a multi-tube bundle centralized flue gas discharge system, and the input end of the multi-tube bundle centralized flue gas discharge system is connected with the output end of a heating furnace with a preset number and preset device.
[0014] Further, the multi-tube bundle centralized flue gas discharge system comprises a main chimney and flue pipes, the number of the flue pipes is at least two, and the input end of the flue pipe is connected with the output end of the heating furnace.
[0015] Further, the flue pipe is supported to a preset height through a flue steel structure support, a flue maintenance manhole is arranged on the flue pipe, and a plurality of expansion joints are arranged on the flue pipe based on the design length of the flue pipe.
[0016] Further, the main chimney comprises a chimney inner cylinder and a chimney outer cylinder, a chimney ladder and a maintenance platform are arranged between the chimney inner cylinder and the chimney outer cylinder, a plurality of sensors for monitoring operation data are arranged on the chimney inner cylinder, the output end of each sensor is connected with a flue gas discharge quality detection system, a lightning rod and an aviation obstruction light are arranged on the outer wall of the chimney outer cylinder, a liquid discharge port is arranged at the bottom of the chimney inner cylinder, and a liquid discharge pipe is connected with the liquid discharge port.
[0017] Further, each sensor detects all indicators of flue gas discharge and transmits to a DCS detection system, according to the feedback result of the flue gas detection system CEMS system, if the detected pollutants are unqualified, the oxygen content in the device heating furnace is adjusted in time to ensure that the environmental protection indicators are within the qualified range.
[0018] Further, the multi-tube bundle centralized flue gas discharge system arranged in the factory area at least comprises at least one of the following main chimneys: one main chimney is arranged for the flue gas collection of a coal hydrogen production device and a sulfur recovery device; the flue gas of a wax oil device, a residual oil device, and a solvent deasphalted device is collected through a flue gas pipeline and combined into one main chimney for discharge; the flue gas of a reforming device and a naphtha hydrogenation device is collected through a flue gas pipeline and combined into one main chimney for discharge; the flue gas of a conventional vacuum distillation device, a diesel hydrogenation device, a lubricating oil isomerization dewaxing device, and a kerosene hydrogenation device is collected through a flue gas pipeline and combined into one main chimney for discharge; the flue gas of an isomerization device, a xylene device, and a disproportionation device is collected through a flue gas pipeline and combined into one main chimney for discharge; and the flue gas of a plurality of mixed dehydrogenation devices is collected through a flue gas pipeline and combined into one main chimney for discharge.
[0019] Compared with the prior art, the present application has the following advantages: based on the location of the device construction, the difficulty of arranging the flue gas pipeline, the distance of arranging the flue gas pipeline, the most reasonable discharge point is selected, a multi-pipe cluster discharge chimney is constructed, by analyzing the emissions of different heating devices, the discharge ports of multiple different devices meeting the preset standard are integrated together, the land area is reduced, the cost is reduced, the engineering construction difficulty is reduced, the construction risk coefficient is reduced, and the engineering construction progress is accelerated. In addition, the flue gas is connected to the whole plant DCS detection system, and the flue gas emission index detection and unqualified control are implemented, the discharge monitoring points are few, and the management is convenient. BRIEF DESCRIPTION OF DRAWINGS
[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description are some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.
[0021] Figure 1 It is a front view of the flue gas discharge system in the embodiment of the present application.
[0022] Figure 2 It is a top view of the flue gas discharge system in the embodiment of the present application. DETAILED DESCRIPTION
[0023] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict. The present application will be described in detail below with reference to the drawings and in combination with the embodiments.
[0024] In order to make the purpose, technical scheme and advantages of the embodiments of the present application more clear, the technical scheme in the embodiments of the present application will be described clearly and completely below in combination with the drawings of the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, not all. The description of the at least one exemplary embodiment is actually only illustrative, not as any limitation on the present application and its application or use. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.
[0025] It is to be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments in accordance with the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and / or "comprising," when used in this specification, specify the presence of stated features, steps, operations, devices, components and / or combinations thereof, but do not preclude the presence or addition of one or more other features, steps, operations, devices, components and / or combinations thereof.
[0026] The relative arrangement of components and steps, numerical expressions, and numerical values set forth in the examples are not intended to limit the scope of the application unless otherwise specifically stated. It is also to be understood that the dimensions of the various parts shown in the drawings are not necessarily to scale, and that for purposes of convenience and clarity in understanding the present application, common terms have been used for like components throughout. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art can not be discussed in detail but are intended to be part of the scope of the present application. In all examples shown and discussed herein, any specific numerical value, wherever placed, should be construed as merely an example and not a limitation. Other examples of the example embodiments can have different values. It is to be noted that like numbers and letters refer to like elements throughout the several views of the drawings and that, unless otherwise specifically stated, the drawings are not to scale, and that, if so, the dimensions of the various parts are intended to be exaggerated for the convenience of description and do not limit the scope of the present application.
[0027] In the description of the present application, it is to be understood that the orientation or positional relationships indicated by orientation words such as "front, back, upper, lower, left, right", "horizontal, vertical, perpendicular, horizontal" and "top, bottom" are generally based on the orientation or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description. Unless otherwise specified, these orientation words do not indicate and imply that the devices or elements referred to must have a particular orientation or be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the scope of protection of the present application: the orientation words "inner, outer" refer to the inner and outer relative to the contour of each component.
[0028] For purposes of the description hereinafter, spatially relative terms, such as "above", "below", "up", "down", "between", "within", "left", "right", "rear", "front", "upper", "lower", "horizontal", "vertical", "above", "below", "up", "down", "top", "bottom", "under" and the like, can be used herein for ease of description to describe one element's or feature's relationship to another element(s) or feature(s) as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientations depicted in the figures. For example, if a device in the figures is inverted, elements described as "above" or "up" other elements or features would then be oriented "below" or "down" the other elements or features. Thus, the exemplary term "above" can encompass both an orientation of above and below. The device can be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly. The terms "first", "second", "third", etc. can be used herein to describe various elements, components, regions and / or sections but are not intended to be limiting. Such terms are used only to distinguish one element, component, region and / or section from another element, component, region and / or section.
[0029] In addition, it should be noted that the use of "first", "second", and the like words of distinction do not have a special meaning and are used only to distinguish corresponding parts, and therefore cannot be understood as limiting the scope of protection of the present application.
[0030] As shown in Figure 1 , Figure 2 The embodiment of the present application discloses a method for centralized flue gas emission of park atmospheric treatment, comprising the following steps:
[0031] Step 1, obtaining the basic data and operation data of the to-be-built or built chimney in the park;
[0032] Step 2, first considering the operation data of each chimney, according to the flue gas composition difference caused by different fuel components of the device heating furnace, the flue gas is integrated and discharged, according to the operation data of the flue gas, a multi-tube cluster flue gas discharge system is set, and a plurality of sub-chimneys within a preset index range are integrated into a main chimney;
[0033] Step 3, considering the basic data of each chimney again, considering the device location relationship, the difficulty of flue arrangement, the length factor of flue arrangement, and finding the most reasonable position to set the integrated discharge chimney;
[0034] Step 4, comprehensively considering the factors of step 2 and step 3, judging the integrated chimney designed in step 2 and step 3 by a preset influence factor, until the optimal number and specific flue gas discharge sub-chimney, and the basic data of the main chimney after integration of each sub-chimney are obtained;
[0035] Step 5, according to the obtained flue gas dust content data, calculating the pollutant emission concentration, and designing the overall height of the main chimney.
[0036] Further, the basic data includes the setting area, floor area, and height data of the chimney.
[0037] Further, the operation data includes the emission composition, temperature, humidity, dust amount, sulfur content, and pressure of the chimney.
[0038] A centralized flue gas discharge system for park atmospheric treatment, comprising a multi-tube bundle centralized flue gas discharge system, the input end of the multi-tube bundle centralized flue gas discharge system being connected with the output end of a heating furnace of a preset number and preset device.
[0039] Further, the multi-tube bundle centralized flue gas discharge system comprises a main chimney and flue pipes, the number of the flue pipes being at least two, and the input end of the flue pipes being connected with the output end of the heating furnace.
[0040] Further, the flue pipes are supported to a preset height by flue steel structure supports, a flue manhole is arranged on the flue pipes, and a plurality of expansion joints are arranged on the flue pipes based on the design length of the flue pipe.
[0041] Further, the main chimney comprises a chimney inner cylinder and a chimney outer cylinder, a chimney ladder and a maintenance platform are arranged between the chimney inner cylinder and the chimney outer cylinder, a plurality of sensors for monitoring operation data are arranged on the chimney inner cylinder, the output end of each sensor is connected with a flue gas discharge quality detection system, a lightning rod and an aviation obstruction light are arranged on the outer wall of the chimney outer cylinder, a liquid discharge port is arranged at the bottom of the chimney inner cylinder, and a liquid discharge pipe is connected with the liquid discharge port.
[0042] Further, each sensor detects all indicators of flue gas discharge and transmits to the DCS detection system, according to the feedback result of the flue gas detection system CEMS system, if the detected pollutants are unqualified, the oxygen content in the device heating furnace is adjusted in time to ensure that the environmental protection indicators are within the qualified range.
[0043] Further, the multi-tube bundle centralized flue gas discharge system arranged in the plant area at least comprises at least one of the following main chimneys: one main chimney is set up for the flue gas of a coal-to-hydrogen device and a sulfur recovery device; the flue gas of a wax oil device, a residual oil device, and a solvent deasphalted device is collected and combined through a flue gas pipeline to one main chimney for discharge; the flue gas of a reforming device and a naphtha hydrogenation device is collected and combined through a flue gas pipeline to one main chimney for discharge; the flue gas of a conventional vacuum distillation device, a diesel hydrogenation device, a lubricating oil isomerization dewaxing device, and a kerosene hydrogenation device is collected and combined through a flue gas pipeline to one main chimney for discharge; the flue gas of an isomerization device, a xylene device, and a disproportionation device is collected and combined through a flue gas pipeline to one main chimney for discharge; and the flue gas of a plurality of sets of mixed dehydrogenation devices is collected and combined through a flue gas pipeline to one main chimney for discharge.
[0044] In this embodiment, the specific chimney design and emission monitoring are as follows:
[0045]
[0046] In the embodiment, 26 chimneys are integrated into 8, reducing the number of chemical plant chimneys, reducing the flue gas detection equipment, reducing the floor area, and reducing the cost. In the embodiment, the design chimney discharge height is calculated as 180m, reducing the ground pollutant concentration. A multi-cluster concentrated flue gas discharge system is used to guide the flue gas and harmful gas to high altitude, and the pollutants are diffused to a greater extent, which greatly adjusts the ground concentration.
[0047] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.
Claims
1. A method for centralized flue gas emission of park atmospheric treatment, characterized in that, It comprises the following steps: Step 1, obtaining the basic data and operation data of the to-be-built or built chimney in the park; Step 2, first considering the operation data of each chimney, according to the difference of flue gas composition generated by different fuel components of the device heating furnace, the flue gas integration emission is considered, according to the operation data of the flue gas, a multi-tube cluster flue gas emission system is set, and several sub-chimneys within the preset index range are integrated into a main chimney; Step 3, considering the basic data of each chimney again, considering the relationship between the device and the location, the difficulty of flue arrangement, the length of flue arrangement, and finding the most reasonable position to set the integrated emission chimney; Step 4, comprehensively considering the factors of step 2 and step 3, judging the integrated chimney designed in step 2 and step 3 with the preset influence factor, until the optimal number and specific flue gas emission sub-chimney, and the basic data of the main chimney after integration of each sub-chimney are obtained; Step 5, according to the obtained flue dust content data, calculating the pollutant emission concentration, designing the overall height of the main chimney.
2. The park atmospheric treatment flue gas centralized emission method according to claim 1, characterized in that, The basic data includes the setting area, land area and height data of the chimney.
3. The method according to claim 1, wherein, The operation data includes the composition, temperature, humidity, dust content, sulfur content and pressure of the chimney.
4. An emission system based on the design of the method for centralized emission of flue gas for atmospheric treatment of a park according to any one of claims 1 to 3, characterized in that, It comprises a multi-tube cluster flue gas emission system, and the input end of the multi-tube cluster flue gas emission system is connected with the output end of the heating furnace of the preset number and preset device.
5. The park atmospheric treatment flue gas centralized discharge system according to claim 4, characterized in that, The multi-tube cluster flue gas emission system comprises a main chimney and a flue pipe, the number of the flue pipe is at least two, and the input end of the flue pipe is connected with the output end of the heating furnace.
6. The park atmospheric treatment flue gas centralized discharge system according to claim 5, characterized in that, The flue pipe is supported to a preset height by a flue steel structure support, a flue maintenance manhole is arranged on the flue pipe, and a plurality of expansion joints are arranged on the flue pipe based on the design length of the flue pipe.
7. The park atmospheric treatment flue gas centralized discharge system according to claim 4, characterized in that, The main chimney comprises a chimney inner cylinder and a chimney outer cylinder, a chimney ladder and a maintenance platform are arranged between the chimney inner cylinder and the chimney outer cylinder, a plurality of sensors for monitoring operation data are arranged on the chimney inner cylinder, the output ends of the sensors are connected with a flue gas emission quality detection system, a lightning rod and an aviation obstruction light are arranged on the outer wall of the chimney outer cylinder, a drainage port is arranged at the bottom of the chimney inner cylinder, and a drainage pipe is connected with the drainage port.
8. The park atmospheric treatment flue gas centralized discharge system according to claim 7, characterized in that, All indicators of flue gas emission are detected by each sensor and transmitted to the DCS detection system, according to the feedback result of the flue gas detection system CEMS system, if the detected pollutants are unqualified, the oxygen content in the device heating furnace is adjusted in time to ensure that the environmental protection index is within the qualified range. 9.The centralized flue gas discharging system for park atmosphere treatment according to claim 4, characterized in that, The multi-tube bundle cluster flue gas discharge system arranged in the factory area comprises at least one of the following main chimneys: a main chimney is arranged for collecting flue gas of a coal hydrogen production device and a sulfur recovery device; flue gas of a wax oil device, a residual oil device and a solvent deasphalting device is collected through flue gas pipelines and combined into one main chimney for discharge; flue gas of a reforming device and a naphtha hydrogenation device is collected through flue gas pipelines and combined into one main chimney for discharge; flue gas of a conventional pressure reduction device, a diesel hydrogenation device, a lubricating oil isomerization dewaxing device and a kerosene hydrogenation device is collected through flue gas pipelines and combined into one main chimney for discharge; flue gas of an isomerization device, a xylene device and a disproportionation device is collected through flue gas pipelines and combined into one main chimney for discharge; flue gas of multiple sets of mixed dehydrogenation devices is collected through flue gas pipelines and combined into one main chimney for discharge.
Citation Information
Patent Citations
Computer-aided design method and system for chimney and storage medium
CN117436283A