CN104555918A - Method and system for recycling high-temperature steam - Google Patents
Method and system for recycling high-temperature steam Download PDFInfo
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- CN104555918A CN104555918A CN201410845417.8A CN201410845417A CN104555918A CN 104555918 A CN104555918 A CN 104555918A CN 201410845417 A CN201410845417 A CN 201410845417A CN 104555918 A CN104555918 A CN 104555918A
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Abstract
The invention discloses a method for recycling high-temperature steam. High-temperature steam is pumped into a nitrogen heater to heat nitrogen; after the nitrogen is heated to be 250-350 DEG C, a first control valve and a second control valve are opened so that high-temperature nitrogen is pumped into a first conversion furnace and a second conversion furnace; when a catalyst in the first conversion furnace is heated to be 220-280 DEG C and a catalyst in the second conversion furnace is heated to be 210-250 DEG C, the first control valve and the second control valve are closed so as to stop pumping high-temperature nitrogen into the first conversion furnace and the second conversion furnace; at the moment, a pressure-reducing steam valve is opened so that high-temperature steam flows into a steam recycler via the pressure-reducing steam valve. A system for recycling high-temperature steam avoids huge noise pollution caused by on-site discharge of steam, greatly optimizes the operation environment, and is simple in structure and convenient to operate.
Description
Technical field
The present invention relates to a kind of method and system reclaiming high-temperature steam, belong to the technical field of vapor recovery.
Background technology
The conversion of carbon monoxide refers to that in synthetic gas, CO is by means of the effect of catalyzer, at a certain temperature, reacts with water vapour, and carbon monoxide generates the process of carbonic acid gas and hydrogen, and its object mainly obtains the available gas hydrogen producing derived product.CO shift reaction carries out under catalyzer existent condition, it is a typical gas-solid catalysis, the service temperature of low temperature shift catalyst is 200 ~ 280 DEG C, classical carbon monoxide sulfur resistant conversion process flow process is before system is driven, with press through in 4.4MPa hot steam will go into operation nitrogen heating, nitrogen by more than catalyzer temperature-elevating to catalyst activity temperature, the general then emptying on the spot of the high-temperature steam after using.Temperature-rise period due to catalyzer strictly will control the temperature rise of unit time, the simple method operational difficulty regulating temperature by emptying control quantity of steam, the catalyzer temperature-elevating time is long simultaneously, steam usage quantity is large, steam between transformation catalyst temperature raising period is caused to lose in a large number, directly affect economic benefit, and emptying steam on-site noise is larger.
Summary of the invention
The object of the invention is to, a kind of method and system reclaiming high-temperature steam are provided.The present invention can recycle high-temperature steam, avoids the steam sound pollution brought of emptying and waste on the spot, optimize operating environment greatly, and structure is simple, easy to operate.
Technical scheme of the present invention:
A kind of method reclaiming high-temperature steam, high-temperature steam is passed in nitrogen heater (1), nitrogen is heated, after nitrogen is heated to 250-350 DEG C, open the first control valve (7) and the second control valve (8), high temperature nitrogen is made to pass in the first shift converter (4) and the second shift converter (5), when the catalyzer in the first shift converter (4) is heated to 220 DEG C-280 DEG C, when catalyzer in second shift converter (5) is heated to 210 DEG C-250 DEG C, close the first control valve (7) and the second control valve (8), stop logical nitrogen in the first shift converter (4) and the second shift converter (5), now open reduced steam valve (9), high-temperature steam is made to enter in vapor recovery device (3) by reduced steam valve (9), .
Reclaim a system for high-temperature steam, comprise nitrogen heater (1), nitrogen heater (1) connects the described reduced steam valve (9) of steam evacuation valve (2), reduced steam valve (9) and shift converter part (6) simultaneously and is connected vapor recovery device (3).
In the system of aforementioned recovery high-temperature steam, described shift converter part (6) comprises the first control valve (7), and the first control valve (7) connects the first shift converter (4), and the first shift converter (4) is connected with the second shift converter (5) through the second control valve (8).
In the system of aforementioned recovery high-temperature steam, described nitrogen heater (1) is connected with first control valve (7) of shift converter part (6).
Compared with the prior art, the present invention has following beneficial effect:
One, the present invention by connecting reduced steam valve on nitrogen heater, and connect vapor recovery device by reduced steam valve.When high-temperature steam enters after nitrogen heats by nitrogen heater, open reduced steam valve, being now used for the high-temperature steam of heated nitrogen enters vapor recovery device through reduced steam valve and reclaims, and avoids the emptying loss of high-temperature steam, thus reduces production cost.
Two, the present invention is reclaimed high-temperature steam by vapor recovery device, avoid high-temperature steam on the spot emptying time the noise pollution that produces.Pass through actual measurement, when steam heater outlet saturated-steam temperature is 230-280 DEG C, when pressure is 4.0Mpa, as by high-temperature steam emptying on the spot, noise is 117 decibels, and is recycled to by high-temperature steam in vapor recovery device, and noise can be down to 45 decibels, optimize production environment greatly, decrease sound pollution.
Three, in the present invention, nitrogen heater is also connected with steam evacuation valve, when pressure instability timing appears in high-temperature steam, can open steam evacuation valve, on the spot emptying, effectively can avoid the generation of accident.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Being labeled as in accompanying drawing: 1-nitrogen heater, 2-steam evacuation valve, 3-vapor recovery device, 4-first shift converter, 5-second shift converter, 6-shift converter part, 7-first control valve, 8-second control valve, 9-reduced steam valve.
Embodiment
Below in conjunction with drawings and Examples, the present invention is further illustrated, but not as the foundation limited the present invention.
Embodiment 1. 1 kinds reclaims the method for high-temperature steam, the method is passed into by high-temperature steam in nitrogen heater 1, nitrogen is heated, after nitrogen is heated to 250-350 DEG C, nitrogen heater 1 is also connected with the first shift converter 4 through the first control valve 7 by the method, first shift converter 4 connects through the second control valve 8 second shift converter 5, open the first control valve 7 and the second control valve 8, high temperature nitrogen will pass in the first shift converter 4 and the second shift converter 5, when the catalyzer in the first shift converter 4 is heated to 220 DEG C-280 DEG C, when catalyzer in second shift converter 5 is heated to 210 DEG C-250 DEG C, close the first control valve 7 and the second control valve 8, stop logical nitrogen in the first shift converter 4 and the second shift converter 5, nitrogen heater 1 is also connected with vapor recovery device 3 through reduced steam valve 9 by the method, now opens reduced steam valve 9, and high-temperature steam will be entered in vapor recovery device 3 by reduced steam valve 9, thus reclaims high-temperature steam, nitrogen heater 1 also connects steam evacuation valve 2, when high temperature steam pressure is too high, unstable, by opening steam evacuation valve 2, by high-temperature steam emptying on the spot, can avoid the generation of accident like this.
Embodiment 2. 1 kinds reclaims the system of high-temperature steam, form as shown in Figure 1, comprise nitrogen heater 1, nitrogen heater 1 connects reduced steam valve 9 described in steam evacuation valve 2, reduced steam valve 9 and shift converter part 6 simultaneously and is connected vapor recovery device 3, nitrogen heater 1 also connects steam evacuation valve 2, when high temperature steam pressure is too high, unstable, by opening steam evacuation valve 2, by high-temperature steam emptying on the spot, the generation of accident can be avoided like this.
Described shift converter part 6 comprises the first control valve 7, first control valve 7 and connects the first shift converter 4, first shift converter 4 and be connected with the second shift converter 5 through the second control valve 8.
Described nitrogen heater 1 is connected with the first control valve 7 of shift converter part 6.
Claims (4)
1. one kind is reclaimed the method for high-temperature steam, it is characterized in that: high-temperature steam is passed in nitrogen heater (1), nitrogen is heated, after nitrogen is heated to 250-350 DEG C, open the first control valve (7) and the second control valve (8), high temperature nitrogen is made to pass in the first shift converter (4) and the second shift converter (5), when the catalyzer in the first shift converter (4) is heated to 220 DEG C-280 DEG C, when catalyzer in second shift converter (5) is heated to 210 DEG C-250 DEG C, close the first control valve (7) and the second control valve (8), stop logical nitrogen in the first shift converter (4) and the second shift converter (5), now open reduced steam valve (9), high-temperature steam is made to enter in vapor recovery device (3) by reduced steam valve (9), .
2. one kind is reclaimed the system of high-temperature steam, it is characterized in that: comprise nitrogen heater (1), nitrogen heater (1) connects the described reduced steam valve (9) of steam evacuation valve (2), reduced steam valve (9) and shift converter part (6) simultaneously and is connected vapor recovery device (3).
3. reclaim the system of high-temperature steam according to claim 2, it is characterized in that: described shift converter part (6) comprises the first control valve (7), first control valve (7) connects the first shift converter (4), and the first shift converter (4) is connected with the second shift converter (5) through the second control valve (8).
4. reclaim the system of high-temperature steam according to claim 3, it is characterized in that: described nitrogen heater (1) is connected with first control valve (7) of shift converter part (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410845417.8A CN104555918A (en) | 2014-12-31 | 2014-12-31 | Method and system for recycling high-temperature steam |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410845417.8A CN104555918A (en) | 2014-12-31 | 2014-12-31 | Method and system for recycling high-temperature steam |
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| CN104555918A true CN104555918A (en) | 2015-04-29 |
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| CN201410845417.8A Pending CN104555918A (en) | 2014-12-31 | 2014-12-31 | Method and system for recycling high-temperature steam |
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Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JPS63230503A (en) * | 1987-03-20 | 1988-09-27 | Hitachi Ltd | Method for increasing temperature of reforming system |
| CN101134577A (en) * | 2007-07-30 | 2008-03-05 | 四川美丰化工股份有限公司 | Method for shortening operating time of synthesis ammonia system |
| CN101704513A (en) * | 2009-08-13 | 2010-05-12 | 上海国际化建工程咨询公司 | Shunting-type isothermal sulfur-tolerant conversion process and equipment thereof |
| CN102001624A (en) * | 2010-11-22 | 2011-04-06 | 神华集团有限责任公司 | Method for producing hydrogen by using hydrocarbonaceous material gas |
| CN102219185A (en) * | 2011-04-11 | 2011-10-19 | 中国石油化工股份有限公司 | Process for activating catalyst during starting of natural gas steam transforming hydrogen production device |
| CN202440305U (en) * | 2011-11-23 | 2012-09-19 | 安徽淮化股份有限公司 | Hot nitrogen replacement system suitable for CO conversion device |
| CN103508418A (en) * | 2012-06-18 | 2014-01-15 | 中国石油化工集团公司 | Start gas heating system in process of hydrogen production from water vapor and heating method |
| CN203419741U (en) * | 2013-06-04 | 2014-02-05 | 贵州天福化工有限责任公司 | Conversion system sufficiently utilizing byproduct medium pressure steam of coal gasification device |
| CN204356077U (en) * | 2014-12-31 | 2015-05-27 | 贵州天福化工有限责任公司 | A kind of system reclaiming high-temperature steam |
-
2014
- 2014-12-31 CN CN201410845417.8A patent/CN104555918A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63230503A (en) * | 1987-03-20 | 1988-09-27 | Hitachi Ltd | Method for increasing temperature of reforming system |
| CN101134577A (en) * | 2007-07-30 | 2008-03-05 | 四川美丰化工股份有限公司 | Method for shortening operating time of synthesis ammonia system |
| CN101704513A (en) * | 2009-08-13 | 2010-05-12 | 上海国际化建工程咨询公司 | Shunting-type isothermal sulfur-tolerant conversion process and equipment thereof |
| CN102001624A (en) * | 2010-11-22 | 2011-04-06 | 神华集团有限责任公司 | Method for producing hydrogen by using hydrocarbonaceous material gas |
| CN102219185A (en) * | 2011-04-11 | 2011-10-19 | 中国石油化工股份有限公司 | Process for activating catalyst during starting of natural gas steam transforming hydrogen production device |
| CN202440305U (en) * | 2011-11-23 | 2012-09-19 | 安徽淮化股份有限公司 | Hot nitrogen replacement system suitable for CO conversion device |
| CN103508418A (en) * | 2012-06-18 | 2014-01-15 | 中国石油化工集团公司 | Start gas heating system in process of hydrogen production from water vapor and heating method |
| CN203419741U (en) * | 2013-06-04 | 2014-02-05 | 贵州天福化工有限责任公司 | Conversion system sufficiently utilizing byproduct medium pressure steam of coal gasification device |
| CN204356077U (en) * | 2014-12-31 | 2015-05-27 | 贵州天福化工有限责任公司 | A kind of system reclaiming high-temperature steam |
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Application publication date: 20150429 |
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