CN109437102B - System and method for avoiding blockage of spray head of conversion quencher - Google Patents
System and method for avoiding blockage of spray head of conversion quencher Download PDFInfo
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- CN109437102B CN109437102B CN201811427286.6A CN201811427286A CN109437102B CN 109437102 B CN109437102 B CN 109437102B CN 201811427286 A CN201811427286 A CN 201811427286A CN 109437102 B CN109437102 B CN 109437102B
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- hand valve
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B3/00—Hydrogen; Gaseous mixtures containing hydrogen; Separation of hydrogen from mixtures containing it; Purification of hydrogen
- C01B3/02—Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen
- C01B3/06—Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen by reaction of inorganic compounds containing electro-positively bound hydrogen, e.g. water, acids, bases, ammonia, with inorganic reducing agents
- C01B3/12—Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen by reaction of inorganic compounds containing electro-positively bound hydrogen, e.g. water, acids, bases, ammonia, with inorganic reducing agents by reaction of water vapour with carbon monoxide
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
- B08B3/02—Cleaning by the force of jets or sprays
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B3/00—Hydrogen; Gaseous mixtures containing hydrogen; Separation of hydrogen from mixtures containing it; Purification of hydrogen
- C01B3/02—Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen
- C01B3/32—Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen by reaction of gaseous or liquid organic compounds with gasifying agents, e.g. water, carbon dioxide, air
- C01B3/34—Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen by reaction of gaseous or liquid organic compounds with gasifying agents, e.g. water, carbon dioxide, air by reaction of hydrocarbons with gasifying agents
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
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- General Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Inorganic Chemistry (AREA)
- Polyesters Or Polycarbonates (AREA)
- Nozzles (AREA)
Abstract
The invention discloses a system and a method for avoiding blockage of a spray head of a conversion quencher, comprising a regulating valve, a seven-hand valve and an eight-hand valve, wherein a feed inlet of the eight-hand valve is connected with the regulating valve, a discharge outlet of the eight-hand valve is respectively connected with an upper coil connecting wire and a lower coil connecting wire, the discharge outlet of the seven-hand valve is connected with the regulating valve, the feed inlet of the seven-hand valve is respectively connected with a condensate feed pipeline and a boiler water feed pipeline, the condensate feed pipeline is provided with a one-hand valve, and the boiler water feed pipeline is provided with a two-hand valve; a first filter pipeline branch and a second filter pipeline branch are respectively connected in parallel between a feed inlet and a discharge outlet of the seventh hand valve, a third hand valve, a first filter and a fifth hand valve are sequentially arranged on the first filter pipeline branch, and a fourth hand valve, a second filter and a sixth hand valve are sequentially arranged on the second filter pipeline branch. The invention avoids the blockage of the spray head caused by the excessive dirty quenching water and the reduction of the service life of the catalyst caused by high inlet temperature of the shift catalyst.
Description
Technical Field
The invention relates to the field of chemical production, in particular to a system and a method for avoiding blockage of a spray head of a conversion quencher.
Background
The coal gas from the coal gasification device enters a first shift converter to carry out incomplete shift reaction, enters a No. 1 quenching filter to quench the shift gas by using condensate liquid as quenching water, and then enters a second shift converter R04102 to continue the shift reaction. After the second shift converter shifted gas is cooled to 40 ℃ and the acid gas removal procedure is carried out in a No. 2 shift gas separator, the condensate generated by the shifting device is recovered to a methanol condensate flash tank and then is conveyed to a No. 1 quenching filter and a No. 2 quenching filter to be used as a chilling liquid through a condensate pump. Because the condensate is recycled, impurities such as pulverized coal and catalyst powder of the conversion device enter the condensate, a spray head in the quenching filter is blocked, the blocked quenching filter cannot effectively reduce the conversion gas temperature, the inlet temperature of the conversion furnace is high, the service life of the catalyst is influenced, and the serious safety risk is brought by exceeding the design and use temperature of the conversion furnace equipment.
Disclosure of Invention
The invention aims to overcome the defects in the prior art, and provides a system and a method for avoiding the blockage of a spray head of a conversion quencher, which can avoid the blockage of the spray head caused by excessive dirty quenching water and effectively avoid the problem of the reduction of the service life of a catalyst caused by high inlet temperature of a conversion catalyst.
The aim of the invention can be achieved by the following technical scheme.
The system for avoiding blockage of the spray head of the transformation quencher comprises a regulating valve, a seven-hand valve and an eight-hand valve, wherein the feed inlet of the eight-hand valve is connected with the discharge outlet of the regulating valve through a pipeline, the discharge outlet of the eight-hand valve is respectively connected with an upper coil connecting wire and a lower coil connecting wire, the upper coil connecting wire is provided with the ten-hand valve, the lower coil connecting wire is provided with the eleven-hand valve, the discharge outlet of the seven-hand valve is connected with the feed inlet of the regulating valve through a pipeline, the feed inlet of the seven-hand valve is respectively connected with a condensate feed pipeline and a boiler water feed pipeline, the condensate feed pipeline is provided with a first-hand valve, and the boiler water feed pipeline is provided with a second-hand valve; a first filter pipeline branch and a second filter pipeline branch are respectively connected in parallel between a feed inlet and a discharge outlet of the seventh hand valve, a third hand valve, a first filter and a fifth hand valve are sequentially arranged on the first filter pipeline branch, and a fourth hand valve, a second filter and a sixth hand valve are sequentially arranged on the second filter pipeline branch.
And a nine-hand valve is connected between the seven-hand valve feeding hole and the eight-hand valve discharging hole through pipelines.
And a spray valve is arranged on the connecting pipeline of the feed inlet of the regulating valve.
The aim of the invention can be achieved by the following technical scheme.
The method for avoiding blockage of the spray head of the transformation quencher comprises the following steps:
the first step: injecting condensate
Opening a first hand valve, an eighth hand valve, a regulating valve, a third hand valve and a fifth hand valve (or a fourth hand valve and a sixth hand valve), closing a seventh hand valve and a ninth hand valve, opening a tenth hand valve or an eleventh hand valve, putting a first filter (or a second filter) and regulating the flow of condensate through the regulating valve; when the first filter (or the second filter) is blocked, opening a fourth hand valve and a sixth hand valve (or a third hand valve and a fifth hand valve), closing the third hand valve and the fifth hand valve (or the fourth hand valve and the sixth hand valve), switching and putting the filter into the second filter (or the first filter), and cleaning the cut filter for later use;
and a second step of: periodic use of boiler water rinse spray head
a. Opening a second hand valve, closing a first hand valve, introducing boiler water, opening a seventh hand valve, closing a third hand valve or a fourth hand valve, and cutting out a first filter and a second filter;
b. observing the temperature of the inlet of the shift converter, and on the premise of ensuring that the temperature of the inlet of the shift converter is higher than the dew point temperature by more than 20 ℃, adjusting the opening of the regulating valve to flush the spray head;
c. after the flushing is finished, opening a first hand valve, closing a seventh hand valve and a second hand valve, opening a third hand valve HV3 or a fourth hand valve, putting the first filter or the second filter into use, and continuously injecting condensate;
d. and (5) periodically repeating the steps a-c, and flushing the spray head.
The pressure of the condensate in the first step is 4.8MPa.
In the second step, the water pressure of the boiler is 6MPa
Compared with the prior art, the technical scheme of the invention has the following beneficial effects:
(1) According to the invention, the filter is added at the condensate inlet of the quenching filter, so that the spray head is prevented from being blocked due to excessive dirty quenching water, and the problem of reduced service life of the catalyst caused by high inlet temperature of the shift catalyst is effectively avoided.
(2) According to the invention, the spray nozzle is cleaned intermittently by the medium-pressure boiler water, so that fine powder such as coal dust is prevented from accumulating at the spray nozzle for a long time.
Drawings
FIG. 1 is a schematic diagram of a system for avoiding blockage of a shift quench head in accordance with the present invention.
Reference numerals: HV1 first hand valve, HV2 second hand valve, HV3 third hand valve, HV4 fourth hand valve, HV5 fifth hand valve, HV6 sixth hand valve, HV7 seventh hand valve, HV8 eighth hand valve, HV9 ninth hand valve, HV10 tenth hand valve, HV11 eleventh hand valve, HV12 spray valve, TV 0419 regulator valve, T1 first filter, T2 second filter.
Detailed Description
The invention is further described below with reference to the accompanying drawings.
As shown in FIG. 1, the system for avoiding blockage of the spray head of the conversion quencher comprises a regulating valve TV 0419, a seven-hand valve HV7 and an eight-hand valve HV8, wherein a spray valve HV12 is arranged on a connecting pipeline of a feed inlet of the regulating valve TV 0419. The eight-hand valve HV8 feed inlet is connected with the discharge port of the regulating valve TV 0419 through a pipeline, and the eight-hand valve HV8 discharge port is respectively connected with an upper coil connecting wire and a lower coil connecting wire. The upper coil connecting line is provided with a ten-way valve HV10, and the upper coil connecting line is communicated with the upper coil of the No. 2 quencher. The lower coil connecting line is provided with an eleven-hand valve HV1, and the lower coil connecting line is communicated with a lower coil of the No. 2 quencher. The coil pipe of the No. 2 quencher is a circular closed coil pipe, a plurality of water outlet pipes are uniformly distributed in one circle of the coil pipe, and a spray head is arranged at the bottom end of the water outlet pipe.
And a nine-hand valve HV9 is connected between the seven-hand valve HV7 feed inlet and the eight-hand valve HV8 discharge outlet through pipelines. The discharge port of the seven-hand valve HV7 is connected with the feed port of the regulating valve TV 0419 through a pipeline, the feed port of the seven-hand valve HV7 is respectively connected with a condensate feed pipeline and a boiler water feed pipeline, the condensate feed pipeline is provided with a one-hand valve HV1, and the boiler water feed pipeline is provided with a two-hand valve HV2. A first filter pipeline branch and a second filter pipeline branch are respectively connected in parallel between a feed inlet and a discharge outlet of the seventh hand valve HV7, a third hand valve HV3, a first filter T1 and a fifth hand valve HV5 are sequentially arranged on the first filter pipeline branch, and a fourth hand valve HV4, a second filter T2 and a sixth hand valve HV6 are sequentially arranged on the second filter pipeline branch.
The method for avoiding blockage of the spray head of the transformation quencher comprises the following steps:
the first step: injecting condensate
Opening a first hand valve HV1, an eighth hand valve HV8, a regulating valve TV 0419, a third hand valve HV3 and a fifth hand valve HV5 (or a fourth hand valve HV4 and a sixth hand valve HV 6), closing a seventh hand valve HV7 and a ninth hand valve HV9, opening a tenth hand valve HV10 or an eleventh hand valve HV11, putting into a first filter T1 (or a second filter T2), and regulating the condensate flow through the regulating valve TV 0419; when the first filter T1 (or the second filter T2) is blocked (if the opening degree of the regulating valve TV 0419 is larger and the temperature of the inlet of the converter is not reduced or the reduction degree is small, another group of filters are required to be switched), the fourth hand valve HV4 and the sixth hand valve HV6 (or the third hand valve HV3 and the fifth hand valve HV 5) are opened, the third hand valve HV3 and the fifth hand valve HV5 (or the fourth hand valve HV4 and the sixth hand valve HV 6) are closed, the second filter T2 (or the first filter T1) is switched and put into operation, and the cut filters are cleaned and then are reserved.
And a second step of: periodic flushing spray head
The medium-pressure boiler water is periodically used for flushing the spray head on line, and because the pressure of the conversion system is 3.8MPa, the pressure of the condensing liquid is 4.8MPa and the pressure of the boiler water is 6MPa, the impurities such as coal dust attached to the inner wall of the spray head can be flushed and removed by improving the pressure. The specific method comprises the following steps:
a. opening a second hand valve HV2, closing a first hand valve HV1, introducing boiler water, opening a seventh hand valve HV7, closing a third hand valve HV3 or a fourth hand valve HV4, cutting out a first filter T1 and a second filter T2, and avoiding the influence on flushing effect due to resistance drop caused by sundries;
b. observing the temperature of the inlet of the shift converter, and on the premise of ensuring that the temperature of the inlet of the shift converter is higher than the dew point temperature by more than 20 ℃, adjusting the opening of a regulating valve TV 0419, opening the TV 0419 as much as possible, and flushing the spray head at a large flow rate;
c. after the flushing is finished, opening a first hand valve HV1, closing a seventh hand valve HV7 and a second hand valve HV2, opening a third hand valve HV3 or a fourth hand valve HV4, putting the first filter T1 or the second filter T2 into use, and continuously injecting condensate;
d. and (5) periodically repeating the steps a-c, and flushing the spray head.
Although the function and operation of the present invention has been described above with reference to the accompanying drawings, the present invention is not limited to the above-described specific functions and operations, but the above-described specific embodiments are merely illustrative, not restrictive, and many forms can be made by those having ordinary skill in the art without departing from the spirit of the present invention and the scope of the appended claims, which are included in the protection of the present invention.
Claims (6)
1. The utility model provides a avoid changing system that quencher shower nozzle blockked up, includes governing valve (TV 0419), seven hand valves (HV 7) and eight hand valves (HV 8), eight hand valves (HV 8) feed inlet is connected with governing valve (TV 0419) discharge gate through the pipeline, eight hand valves (HV 8) discharge gate is connected with upper coil connecting wire and lower coil connecting wire respectively, upper coil connecting wire is provided with ten hand valves (HV 10), lower coil connecting wire is provided with eleven hand valves (HV 1), characterized in that, seven hand valves (HV 7) discharge gate is connected with governing valve (TV 0419) feed inlet through the pipeline, seven hand valves (HV 7) feed inlet is connected with condensate feed line and boiler water feed line respectively, condensate feed line is provided with one hand valve (HV 1), boiler water feed line is provided with two hand valves (HV 2); a first filter pipeline branch and a second filter pipeline branch are respectively connected in parallel between a feed inlet and a discharge outlet of the seventh hand valve (HV 7), a third hand valve (HV 3), a first filter (T1) and a fifth hand valve (HV 5) are sequentially arranged on the first filter pipeline branch, and a fourth hand valve (HV 4), a second filter (T2) and a sixth hand valve (HV 6) are sequentially arranged on the second filter pipeline branch.
2. The system for avoiding blockage of a spray head of a shift quencher of claim 1, wherein a nine-hand valve (HV 9) is connected between the seven-hand valve (HV 7) inlet and the eight-hand valve (HV 8) outlet through a line.
3. The system for avoiding blockage of a shift quencher spray head of claim 1, wherein a spray valve (HV 12) is provided on the regulator valve (TV 0419) feed inlet connection line.
4. A method of avoiding blockage of a spray head of a conversion quench, comprising the steps of:
the first step: injecting condensate
Opening a first hand valve (HV 1), an eighth hand valve (HV 8), a regulating valve (TV 0419), a third hand valve (HV 3) and a fifth hand valve (HV 5), closing a seventh hand valve (HV 7) and a ninth hand valve (HV 9), opening a tenth hand valve (HV 10) or an eleventh hand valve (HV 11), putting into a first filter (T1), and regulating the condensate flow through the regulating valve (TV 0419); when the first filter (T1) is blocked, a fourth hand valve (HV 4) and a sixth hand valve (HV 6) are opened, a third hand valve (HV 3) and a fifth hand valve (HV 5) are closed, the second filter (T2) is switched and put into, and the cut filter is cleaned for standby;
and a second step of: periodic use of boiler water rinse spray head
a. Opening a second hand valve (HV 2), closing a first hand valve (HV 1), introducing boiler water, opening a seventh hand valve (HV 7), closing a third hand valve (HV 3) or a fourth hand valve (HV 4), and cutting out a first filter (T1) and a second filter (T2);
b. observing the temperature of the inlet of the shift converter, and on the premise of ensuring that the temperature of the inlet of the shift converter is higher than the dew point temperature by more than 20 ℃, adjusting the opening of a regulating valve (TV 0419) to flush the spray head;
c. after the flushing is finished, opening a first hand valve (HV 1), closing a seventh hand valve (HV 7) and a second hand valve (HV 2), opening a third hand valve (HV 3) or a fourth hand valve (HV 4), putting the first filter (T1) or the second filter (T2) into use, and continuously injecting condensate;
d. and (5) periodically repeating the steps a-c, and flushing the spray head.
5. The method for avoiding plugging of a spray head of a shift quencher of claim 4 wherein the pressure of the condensate in the first step is 4.8MPa.
6. The method for avoiding plugging of a spray head of a shift quencher of claim 4 wherein the boiler water pressure in the second step is 6MPa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811427286.6A CN109437102B (en) | 2018-11-27 | 2018-11-27 | System and method for avoiding blockage of spray head of conversion quencher |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811427286.6A CN109437102B (en) | 2018-11-27 | 2018-11-27 | System and method for avoiding blockage of spray head of conversion quencher |
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| Publication Number | Publication Date |
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| CN109437102A CN109437102A (en) | 2019-03-08 |
| CN109437102B true CN109437102B (en) | 2023-09-08 |
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| CN201811427286.6A Active CN109437102B (en) | 2018-11-27 | 2018-11-27 | System and method for avoiding blockage of spray head of conversion quencher |
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Citations (7)
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|---|---|---|---|---|
| CH688764A5 (en) * | 1993-03-25 | 1998-03-13 | Haeny & Cie Ag | Dosed mixing device for fire sprinkler installation |
| JP2005271266A (en) * | 2004-03-23 | 2005-10-06 | Seiko Epson Corp | Manufacturing method and manufacturing equipment for droplet ejection head, droplet ejection head, and droplet ejector |
| CN204779835U (en) * | 2015-04-27 | 2015-11-18 | 杭州新永丰钢业有限公司 | Belted steel cleaning system |
| CN106311529A (en) * | 2015-06-30 | 2017-01-11 | 沈阳芯源微电子设备有限公司 | Uniform liquid spraying treatment system and treatment method thereof |
| WO2018117272A1 (en) * | 2016-12-23 | 2018-06-28 | バイオコーク技研株式会社 | Hydrogen generating device and hydrogen generating method |
| WO2018190232A1 (en) * | 2017-04-11 | 2018-10-18 | バイオコーク技研株式会社 | Continuous hydrogen generation apparatus and hydrogen generation method |
| CN209322469U (en) * | 2018-11-27 | 2019-08-30 | 天津渤化永利化工股份有限公司 | A kind of system avoiding transformation quencher spray head blocking |
-
2018
- 2018-11-27 CN CN201811427286.6A patent/CN109437102B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH688764A5 (en) * | 1993-03-25 | 1998-03-13 | Haeny & Cie Ag | Dosed mixing device for fire sprinkler installation |
| JP2005271266A (en) * | 2004-03-23 | 2005-10-06 | Seiko Epson Corp | Manufacturing method and manufacturing equipment for droplet ejection head, droplet ejection head, and droplet ejector |
| CN204779835U (en) * | 2015-04-27 | 2015-11-18 | 杭州新永丰钢业有限公司 | Belted steel cleaning system |
| CN106311529A (en) * | 2015-06-30 | 2017-01-11 | 沈阳芯源微电子设备有限公司 | Uniform liquid spraying treatment system and treatment method thereof |
| WO2018117272A1 (en) * | 2016-12-23 | 2018-06-28 | バイオコーク技研株式会社 | Hydrogen generating device and hydrogen generating method |
| WO2018190232A1 (en) * | 2017-04-11 | 2018-10-18 | バイオコーク技研株式会社 | Continuous hydrogen generation apparatus and hydrogen generation method |
| CN209322469U (en) * | 2018-11-27 | 2019-08-30 | 天津渤化永利化工股份有限公司 | A kind of system avoiding transformation quencher spray head blocking |
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| CN109437102A (en) | 2019-03-08 |
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