CN203451488U - Coking catalytic dry gas automatic anti-purging and filtering device - Google Patents
Coking catalytic dry gas automatic anti-purging and filtering device Download PDFInfo
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- CN203451488U CN203451488U CN201320470808.7U CN201320470808U CN203451488U CN 203451488 U CN203451488 U CN 203451488U CN 201320470808 U CN201320470808 U CN 201320470808U CN 203451488 U CN203451488 U CN 203451488U
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Abstract
The utility model discloses a coking catalytic dry gas automatic anti-purging and filtering device. The key points of the technical scheme of the utility model are as follows: the coking catalytic dry gas automatic anti-purging and filtering device comprises a filtering unit and an automatic anti-purging unit, wherein the filtering unit comprises a filter housing, a filtering element and a pipe plate; the pipe plate is arranged at the upper part of the filter housing, the filtering element is fixed on the lower side of the pipe plate, and a gas inlet is formed in the side wall of the pipe plate; the automatic anti-purging unit comprises an automatic anti-purging control device and a buffer tank, the gas inlet end of the automatic anti-purging control device is connected with the buffer tank, and the gas outlet end of the automatic anti-purging control device is connected with the gas inlet in the side wall of the pipe plate. The coking catalytic dry gas automatic anti-purging and filtering device disclosed by the utility model can realize full-load operation, the external supply volume of ethylene-rich gas is upgraded from 4.6 tons/hour to 5.0 tons/hour, raw material is increased for an ethylene device, the synergy of economic development is greatly improved, the operation is normal, a compressor is protected, and the smooth operation of an ethylene recovery device is further ensured.
Description
Technical field
The utility model relates to the gas-solid separating device of a kind of coking, catalysis drying gas, is specifically related to a kind of coking, catalysis drying gas automatic back blow is swept filtration unit.
Background technology
The dry gas of refinery's by-product mainly contains the non-condensable gas of catalytic cracked dry gas, coking dry gas, reformation dry gas, hydrocracking dry gas and normal pressure or reliever etc., and wherein catalytic cracked dry gas output is large, and the volume fraction of contained ethene and lighter hydrocarbons is high, has utility value.But at present oil refinery dry gas is conventionally all sent into gas pipe network and is used as fuel gas, some is even put into torch burnup and falls, and is a waste greatly of resource.Catalytic cracked dry gas is concentrated, therefrom obtain ethene and lighter hydrocarbons, without cracking, directly enter the separation system of ethylene unit, as supplementing of ethylene raw, become abroad the important means that Integrated Refinery And Petrochemical is realized optimizing network resource utilization and reduced production cost of ethylene.
The composition of catalysis drying gas, except containing ethene and lighter hydrocarbons, also contains the impurity such as coke powder, tar, and as without pre-treatment, not only energy consumption is high when compression and deep cooling, but also dangerous.Therefore from dry gas, reclaim ethene and lighter hydrocarbons, should first remove the coke powder that exists in gas and tar etc.So ，Wo company is according to field working conditions and needs, Design and manufacture a kind of coking, catalysis drying gas automatic back blow sweep filtration unit.
Summary of the invention
The technical problem that the utility model solves has been to provide a kind of coking, catalysis drying gas automatic back blow is swept filtration unit.
The technical solution of the utility model is: coking, catalysis drying gas automatic back blow are swept filtration unit, it is characterized in that comprising that filtering unit and automatic back blow sweep unit, described filtering unit comprises filter body, filtering element and tube sheet, wherein tube sheet is arranged at the top of filter body, the downside of tube sheet is fixed with filtering element, and the sidewall of tube sheet is provided with inlet mouth; Described automatic back blow is swept unit and is comprised that automatic back blow sweeps control device and surge tank, and the inlet end that wherein automatic back blow is swept control device is connected with surge tank, and the outlet side that automatic back blow is swept control device is connected with the inlet mouth on tube sheet sidewall.
The airflow line of tube sheet described in the utility model inside is inverted U structure, and the air outlet of this airflow line is connected with gas redistribution device, and the downside of gas redistribution device is filtering element.
Inlet mouth on tube sheet sidewall described in the utility model is provided with at least two, and it is corresponding with the quantity of the enterprising gas port of tube sheet sidewall that described automatic back blow is swept the quantity of control device.
Automatic back blow described in the utility model is swept control device and is adopted PLC or DCS to control back-flushing valve trolley stream to open filtering element is carried out to on-line automatic deashing, and automatic back blow is swept and when control device can start automatic inverse blow system or reach set(ting)value according to the pressure reduction of pressure difference transmitter transmission according to the predefined backwash cycle, started automatic inverse blow system.
The utility model is after coking, catalysis drying gas are introduced; device has been realized oepration at full load; send ethylene-rich tolerance outside and rise to 5.0 tons/hour by 4.6 tons/hour; for ethylene unit has increased raw material; Economic development has greatly synergy, after in May, 2012, equipment put into operation, and normal operation; effectively protect compressor, and guaranteed the trouble-free operation of ethylene recovery unit.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Drawing explanation: 1, filter body, 2, filtering element, 3, tube sheet, 4, automatic back blow sweeps control device, 5, surge tank, 6, airflow line, 7, gas redistribution device.
Embodiment
Describe by reference to the accompanying drawings embodiment in detail.Coking, catalysis drying gas automatic back blow are swept filtration unit, comprise that filtering unit and automatic back blow sweep unit, described filtering unit comprises filter body 1, filtering element 2 and tube sheet 3, wherein tube sheet 3 is arranged at the top of filter body 1, the downside of tube sheet 3 is fixed with filtering element 2, and the sidewall of tube sheet 3 is provided with inlet mouth; Described automatic back blow is swept unit and is comprised that automatic back blow sweeps control device 4 and surge tank 5, and the inlet end that wherein automatic back blow is swept control device 4 is connected with surge tank 5, and the outlet side that automatic back blow is swept control device 4 is connected with the inlet mouth on tube sheet 3 sidewalls.The airflow line 6 of described tube sheet 3 inside is inverted U structure, and the air outlet of this airflow line 6 is connected with gas redistribution device 7, and the downside of gas redistribution device 7 is filtering element 2.Inlet mouth on described tube sheet 3 sidewalls is provided with at least two, and it is corresponding with the quantity of the enterprising gas port of tube sheet 3 sidewall that described automatic back blow is swept the quantity of control device 4.Described automatic back blow is swept control device 4 and is adopted PLC or DCS to control back-flushing valve trolley stream to open filtering element 2 is carried out to on-line automatic deashing, and automatic back blow is swept and when control device 4 can start automatic inverse blow system or reach set(ting)value according to the pressure reduction of pressure difference transmitter transmission according to the predefined backwash cycle, started automatic inverse blow system.
The utility model is after coking, catalysis drying gas are introduced; device has been realized oepration at full load; send ethylene-rich tolerance outside and rise to 5.0 tons/hour by 4.6 tons/hour; for ethylene unit has increased raw material; Economic development has greatly synergy, after in May, 2012, equipment put into operation, and normal operation; effectively protect compressor, and guaranteed the trouble-free operation of ethylene recovery unit.
Principle of work of the present utility model is:
This automatic back blow is swept filtration unit and is arranged on pipeline, for removing the coke powder of dry gas.During equipment normal operation, dusty gas slave unit bottom inlet enters automatic back blow and sweeps filtration unit, passes through from outside to inside filter core, then by filter core hollow space, enters the upper cavity of strainer, the clean gas converging at after the filtration of upper cavity is discharged from filter outlet, enters next equipment.And dust in process gas is stopped by filter core, a part of larger particles dust, due to action of gravity, drops in tank body, and all the other dust are caught by filter core, is attached to cartridge surface and forms cake layer.
Owing to being attached to the cake layer progressive additive of the dust formation of cartridge surface, cause the pressure drop of equipment to increase, therefore need carry out oppositely winding-up to filter bag, clean; This equipment adopts PLC(or DCS) control back-flushing valve trolley stream and open filter core is carried out to on-line automatic deashing.Cake layer, under back draught effect, departs from cartridge surface, is deposited to tank body lower part.For guaranteeing the continuity of strainer work, we are divided into several groups by filtering element, and when carrying out each group filter core blowback, gas is redistributed in tank body.
Filter bag dividing plate upstream and downstream at equipment is provided with differential pressure transmitter interface, and the pressure drop that differential pressure transmitter forms airflow passes filter bag is imported PLC(or DCS into by electrical signal), the working condition of filter core is monitored.When process reverse gas cleaning, pressure drop, still higher than allowable pressure drop, just needs more renew cartridge.
Blowback is controlled automatically:
Automatic back blow is swept the execution of filtration unit by PLC(or DCS) and automatic valve realization.Automatic back blow is swept control device can start automatic inverse blow system according to the predefined backwash cycle, or starts automatic inverse blow system while reaching certain set(ting)value according to the pressure reduction of pressure difference transmitter transmission.
Above embodiment has described ultimate principle of the present utility model, principal character and advantage.The technician of the industry should understand; the utility model is not restricted to the described embodiments; that in above-described embodiment and specification sheets, describes just illustrates principle of the present utility model; do not departing under the scope of the utility model principle; the utility model also has various changes and modifications, and these changes and improvements all fall in the scope of the utility model protection.
Claims (3)
1. coking, catalysis drying gas automatic back blow are swept filtration unit, it is characterized in that comprising that filtering unit and automatic back blow sweep unit, described filtering unit comprises filter body, filtering element and tube sheet, wherein tube sheet is arranged at the top of filter body, the downside of tube sheet is fixed with filtering element, and the sidewall of tube sheet is provided with inlet mouth; Described automatic back blow is swept unit and is comprised that automatic back blow sweeps control device and surge tank, and the inlet end that wherein automatic back blow is swept control device is connected with surge tank, and the outlet side that automatic back blow is swept control device is connected with the inlet mouth on tube sheet sidewall.
2. coking according to claim 1, catalysis drying gas automatic back blow are swept filtration unit, it is characterized in that: the airflow line of described tube sheet inside is inverted U structure, the air outlet of this airflow line is connected with gas redistribution device, and the downside of gas redistribution device is filtering element.
3. coking according to claim 1, catalysis drying gas automatic back blow are swept filtration unit, it is characterized in that: the inlet mouth on described tube sheet sidewall is provided with at least two, it is corresponding with the quantity of the enterprising gas port of tube sheet sidewall that described automatic back blow is swept the quantity of control device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320470808.7U CN203451488U (en) | 2013-08-05 | 2013-08-05 | Coking catalytic dry gas automatic anti-purging and filtering device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320470808.7U CN203451488U (en) | 2013-08-05 | 2013-08-05 | Coking catalytic dry gas automatic anti-purging and filtering device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203451488U true CN203451488U (en) | 2014-02-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320470808.7U Withdrawn - After Issue CN203451488U (en) | 2013-08-05 | 2013-08-05 | Coking catalytic dry gas automatic anti-purging and filtering device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203451488U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103396834A (en) * | 2013-08-05 | 2013-11-20 | 新乡市胜达过滤净化技术有限公司 | Automatic reverse blowing filter device for coking and catalytic dry gases |
-
2013
- 2013-08-05 CN CN201320470808.7U patent/CN203451488U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103396834A (en) * | 2013-08-05 | 2013-11-20 | 新乡市胜达过滤净化技术有限公司 | Automatic reverse blowing filter device for coking and catalytic dry gases |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140226 Effective date of abandoning: 20150311 |
|
| RGAV | Abandon patent right to avoid regrant |