CN202297109U - Total recycle low-pressure hydrogen recovery device - Google Patents
Total recycle low-pressure hydrogen recovery device Download PDFInfo
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- CN202297109U CN202297109U CN2011203042474U CN201120304247U CN202297109U CN 202297109 U CN202297109 U CN 202297109U CN 2011203042474 U CN2011203042474 U CN 2011203042474U CN 201120304247 U CN201120304247 U CN 201120304247U CN 202297109 U CN202297109 U CN 202297109U
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Abstract
The utility model discloses a total recycle low-pressure hydrogen recovery device, which is used for collecting tail gas containing hydrogen, carrying out elution, dedusting, pressurization, deoiling, deoxidization, dehydration and other purification processes to obtain purified hydrogen, and reusing. In the total recycle low-pressure hydrogen recovery device, two alternatively operated drier units are arranged, one drier unit is used for drying and dehydrating the deoxidized waste hydrogen, while the other drier unit uses the dried hydrogen to purge and regenerate, and the purged regenerated gas is sent to a front stage of a cooler so as to be repurified, so that zero emission of the hydrogen is realized. The hydrogen avoids being emptied, the hydrogen consumption cost is greatly reduced, the production cost is reduced, energy conservation and emission reduction are truly realized, and the economic benefit is improved.
Description
Technical field
The utility model relates to full recovery low pressure hydrogen retrieving arrangement.
Background technology
Hydrogen is semi-conductor, unicircuit with silicon single crystal and the solar-energy photo-voltaic cell important process material with polysilicon, also is that the special material tungsten is made important raw materials technology with gold.Explore today of new forms of energy in the whole world, hydrogen also is a kind of new forms of energy.In today that energy dilemma is more and more given prominence to, Recovery technology of hydrogen has great significance undoubtedly.
Hydrogen recycling method mainly contains both at home and abroad at present: (1) pressure swing adsorption process, high product purity is arranged, but need under elevated pressures, just can carry out, and the recovery of hydrogen is not high; (2) membrane separation process, energy consumption is low, and free from environmental pollution, but needs higher gaseous tension, and the purity of recover hydrogen is lower simultaneously, generally has only 90%; (3) Deep Cooling Method, hydrogen recovery rate is higher, but equipment manufacturing cost is high, and energy consumption is high; (4) chemiadsorption can be processed into the special useless hydrogen of branch, but its purity is not high and the investment energy consumption is also high; (5) alternating temperature absorption method, less demanding to raw hydrogen pressure, recover hydrogen purity is higher, but the recovery is not high, generally 85%～95%.Novel energy and the power-saving technology advocated energetically in current country; Thereby to have in the current present technical process a large amount of hydrogen by emptying with the high situation of hydrogen cost; This patent proposes hydrogenous tail gas and reclaims, purifies utilization more entirely; Thereby greatly reduce the hydrogen gas production cost, practiced thrift a large amount of hydrogen resource and social resources simultaneously.
Summary of the invention
The purpose of the utility model provides the full recovery low pressure hydrogen retrieving arrangement of hydrogen zero release.
For achieving the above object, the technical scheme that the utility model adopts is: reclaim the low pressure hydrogen retrieving arrangement entirely, comprise successively downstream from the upper reaches
The water cooler that can lower the temperature to the useless hydrogen of high temperature;
Can carry out the dust separating eluting column of drip washing to the useless hydrogen after the cooling;
Can carry out condenser condensing to the useless hydrogen after the drip washing;
Can remove the steam separator of the moisture in the condensed useless hydrogen;
Can carry out the gas blower of supercharging to the useless hydrogen after dewatering;
Can be to the oil tank that removes of the useless hydrogen oil removing of supercharging;
Can carry out the deoxygenator of deoxygenation to the useless hydrogen after the oil removing;
Can carry out the exsiccant moisture eliminator to the useless hydrogen after the deoxygenation;
Can carry out filtering strainer to dried hydrogen,
Said moisture eliminator comprises the dryer unit of two alternations; All have open top, bottom opening on each said dryer unit; All be connected with dry inlet in the said open top, regenerate with the outlet of valve with valve; This drying is connected with the inlet of said strainer with the outlet of valve; This regeneration is connected with the outlet of said strainer with the inlet of valve, also is connected with well heater between the outlet of this regeneration with the inlet of valve and said strainer, all is connected with dry outlet with valve on the said bottom opening, regenerates with the inlet of valve; This drying is connected with the outlet of said deoxygenator with the inlet of valve, and this regeneration is connected with the inlet of said water cooler with the outlet of valve.
Preferably, said full recovery low pressure hydrogen retrieving arrangement also comprises transfers the valve group, and the input aperture of said accent valve group is connected with the outlet of said gas blower, and the delivery port of said accent valve group is connected with the inlet of said condensing surface or said eluting column.
Preferably, the inlet of said water cooler is connected with the useless hydrogen outlet of industrial hydrogen production device, and the outlet of said strainer is connected with the raw hydrogen inlet of said industrial hydrogen production device through transferring the valve group.
Further preferably, said accent valve group comprises two valve roads that are in parallel, and wherein a valve road comprises stopping valve, variable valve, the stopping valve that is in series successively, and an other valve road comprises stopping valve.
As a kind of concrete embodiment, said industrial hydrogen production device is the molybdenum powder reduction stove.
Because the utilization of technique scheme; The utility model compared with prior art has advantage: reclaiming the low pressure hydrogen retrieving arrangement entirely is that hydrogen containing tail gas is collected; Through drip washing dedusting, supercharging, oil removing, deoxygenation, purifying treatment such as dewater, be purified hydrogen and re-use.Should reclaim entirely in the low pressure hydrogen retrieving arrangement; The dryer unit of two alternations is set; Dryer unit is being carried out the useless hydrogen after the deoxygenation when drying dewaters, and another dryer unit uses dried hydrogen to purge regeneration, and the resurgent gases behind the purging is delivered to the prime of water cooler; Carry out the secondary recovery utilization, thereby realize the zero release of hydrogen.Avoid hydrogen by emptying like this, reduce greatly and use the hydrogen cost, thereby reduce production costs, accomplish real energy-saving and emission-reduction, increase economic efficiency, hydrogen is inflammable and explosive gas, and lp system is guaranteed safe and stable arrangement.Further; Pressure and the flow of transferring the valve group to be used for adjustments of gas are set; Transfer the backflow that the valve group can pilot-gas through one group; Hypotony causes gas blower to take out negative pressure before preventing blower fan, reaches the stable recycle system, through other one group of automatic control and utilization of transferring the valve group to realize purified hydrogen.
Description of drawings
Accompanying drawing 1 is the synoptic diagram of the utility model.
Embodiment
Come further to set forth the structure of the utility model below in conjunction with accompanying drawing.
Referring to shown in Figure 1, reclaim the low pressure hydrogen retrieving arrangement entirely, comprise water cooler 1, eluting column 2, condensing surface 3, steam separator 4, gas blower 5 from the upper reaches downstream successively, remove oil tank 7, deoxygenator 8, moisture eliminator, strainer 11; The useless hydrogen of high temperature from molybdenum powder reduction stove 21 comes out at first gets into water cooler 1, through the water-cooled function of water cooler 1 the useless hydrogen of the high temperature that reclaims is lowered the temperature; Useless subsequently hydrogen is through eluting column 2; Dust and molecule impurity through carrying in the useless hydrogen of washing flush away in eluting column 2 get into condensing surface 3 again through the useless hydrogen of drip washing, through the condensing surface 3 condensations most of moisture in the hydrogen that goes out to give up; Remove moisture through steam separator 4 subsequently; The dew point of useless like this hydrogen can reach 5-10 ℃, and useless then hydrogen gets into gas blower 5 and carries out supercharging, and gas blower 5 can adopt roots blower; Useless hydrogen after gas blower 5 pressurizations gets into and removes oil tank 7; Remove the wet goods impurity that system's prime is brought through removing oil tank 7, the gas of handling entering hydrogen purification device carries out deoxygenation and dewaters and filtration treatment, in Fig. 1; Employing can carry out the useless hydrogen after the oil removing deoxygenation deoxygenator 8, can carry out the exsiccant moisture eliminator to the useless hydrogen after the deoxygenation, can carry out filtering strainer 11 dried hydrogen; Make the oxygen level of gas and the index that dew point is reduced to requirement, the hydrogen after the purification pass through free-standing variable valve group 12 control top hole pressure and flows like this, supply with molybdenum powder reduction stove 21 as virgin gas and use.In Fig. 1; Should reclaim the low pressure hydrogen retrieving arrangement entirely and be applied to molybdenum powder reduction stove 21; Specifically; The inlet that can import the water cooler 1 of the useless hydrogen of high temperature is connected with the useless hydrogen outlet of molybdenum powder reduction stove 21, and the outlet that can export the strainer 11 of the hydrogen after the purification is connected through transferring valve group 12 to enter the mouth with the raw hydrogen of molybdenum powder reduction stove 21.Realized that like this hydrogen containing tail gas with molybdenum powder reduction production is a raw material, transferred the purified hydrogen of the automatic control of valve group to utilize again through combination after cooling drip washing, supercharging oil removing, the deoxygenation drying.
Stable in order to guarantee to reclaim entirely in the low pressure hydrogen retrieving arrangement system pressure; Hypotony causes gas blower 5 to take out negative pressure before preventing blower fan; Be provided with and transfer valve group 6 to carry out tonifying Qi; Specifically, transfer the input aperture of valve group 6 to be connected, transfer the delivery port of valve group 6 to be connected with the inlet of condensing surface 3 or eluting column 2 with the outlet of gas blower 5.Transfer valve group 6 and 12 to include two valve roads that are in parallel, wherein a valve road comprises stopping valve 14, variable valve 13, the stopping valve 15 that is in series successively, and an other valve road comprises stopping valve 16.Transfer the pressure and the flow of valve group 6 and 12 equal adjustments of gas,, reach the stable recycle system, realize the automatic control and the utilization of purified hydrogen through transferring valve group 12 through transferring the backflow of valve group 6 pilot-gas.
In Fig. 1; In order to guarantee the continuous purification work of hydrogen gas recovering device; Moisture eliminator comprises the dryer unit 9 of two alternations, all has open top, bottom opening on each dryer unit 9, all is connected with dry inlet with valve 18 in each open top, regenerates with the outlet of valve 17; This drying is connected with the inlet of strainer 11 with the outlet of valve 18; This regeneration is connected with the outlet of strainer 11 with the inlet of valve 17, also is connected with well heater 10 between the outlet of this regeneration with the inlet of valve 17 and strainer 11, all is connected with dry outlet with valve 19 on each bottom opening, regenerates with the inlet of valve 20; This drying is connected with the outlet of deoxygenator 8 with the inlet of valve 19, and this regeneration is connected with the inlet of water cooler 1 with the outlet of valve 20.Through control dry with valve 18, regeneration with valve 17, drying with valve 19, regenerate with the switching of valve 20; Realized that a dryer unit 9 carrying out exsiccant simultaneously to the useless hydrogen after the deoxygenation; Another dryer unit 9 uses dried hydrogen to purge regeneration; Resurgent gases behind the purging is delivered to the prime of water cooler 1, carries out the secondary recovery utilization, thereby realizes the zero release of hydrogen.In order to guarantee to purge effect, through well heater 10 heating, the siccative in the gas purging dryer unit 9 of heating carries away the aqueous vapor of adsorbing in the siccative to dried hydrogen earlier, thereby realizes the regeneration of siccative.In Fig. 1, suppose that the dryer unit 9 on the left side is being carried out drying work, then the dryer unit 9 on the right is being carried out reproduction operation; At this moment, the drying that is connected on the open top of left side dryer unit 9 and the bottom opening is opened with valve 18 and 19, and regeneration is closed with valve 17 and 20; The drying that is connected on open top and the bottom opening of the right dryer unit 9 is closed with valve 18 and 19, regenerates and opens with valve 17 and 20, and the gas of exporting from deoxygenator 8 like this carries out drying through left side dryer unit 9; Dried gas gets into strainer 11 and filters, the hydrogen after promptly being purified, and the hydrogen after part purifies is as the regeneration sweep gas; After well heater 10 heating, get into the right dryer unit 9 and purge, blow out the moisture in the siccative; Realize regeneration, the gas that purges out is sent into water cooler 1 and is carried out the secondary recovery utilization.The full recovery, the purification that have realized hydrogen like this utilize again, and the recovery is 100%.
To sum up, this reclaims the low pressure hydrogen retrieving arrangement entirely is that hydrogen containing tail gas is collected, and through drip washing dedusting, supercharging, oil removing, deoxygenation, purifying treatment such as dewater, the purified gas that obtains re-uses.Adopt the full low pressure hydrogen retrieving arrangement that reclaims, avoid hydrogen, reduce greatly and use the hydrogen cost, thereby reduce production costs, accomplish real energy-saving and emission-reduction, increase economic efficiency by emptying.Hydrogen is inflammable and explosive gas, and lp system can further be guaranteed the safe and stable arrangement operation.
To this full application of reclaiming the low pressure hydrogen retrieving arrangement be described through a specific embodiment below; Certain enterprise is in the molybdenum powder production process; The raw material ammonium molybdate, molybdenum dioxide needs the low-voltage hydrogenation reduction reaction, and reduction generates the high purity molybdenum powder; Therefore must in Reaktionsofen, feed highly purified hydrogen, make the molybdenum dioxide reduction generate molybdenum.Certain company carries out reduction reaction through adopting steel cylinder hydrogen decompression back to feed Reaktionsofen; Reacted tail gas is through burning or directly discharging; Its hydrogen richness of collection analysis through tail gas is up to more than 90%, and this causes a large amount of hydrogen source wastes, and causes production cost high.
To above-mentioned situation, this enterprise is in September, 2008, therein on molybdenum powder reduction workshop the 500Nm that provides of my company of cover
3/ h hydrogen gas recovering device reclaims the tail gas in the molybdenum powder reduction stove, utilizes after the purifying treatment again; Obtained success,, recycled through adopting the hydrogen gas recovering device recover hydrogen through relatively finding; The molybdenum powder quality that molybdenum powder of producing and original production line are produced is suitable; And device is stable, reaches re-set target, greatly reduces the use cost of hydrogen.
The useless hydrogen of high temperature from the molybdenum powder reduction stove comes out at first gets into 20m
2Water cooler is further lowered the temperature to the hydrogen that reclaims, and useless subsequently hydrogen just passes through eluting column (patent No. 200920241767.8), the dust and the molecule impurity that carry in the useless hydrogen of flush away; Useless hydrogen through drip washing gets into surge tank, carries out 15m again
2Condensation and steam separator, the most of moisture in the hydrogen that can condensation goes out to give up, the dew point of gas can reach 5～15 ℃; Get into roots blower then and carry out supercharging, pressure reaches 10～30kpa after the supercharging; Useless hydrogen after the blower fan pressurization gets into and removes oil tank, the wet goods impurity that the system prime of removing is brought; The gas handled gets into hydrogen purification device to carry out deoxygenation and dewaters, and the purified gas index is following: oxygen level≤5ppm, gas dew point≤-65 ℃; Hydrogen after the purification is supplied with reduction furnace equipment as virgin gas and is used through free-standing variable valve group control top hole pressure and flow.
Claims (5)
1. reclaim the low pressure hydrogen retrieving arrangement entirely, it is characterized in that: comprise successively downstream from the upper reaches
The water cooler that can lower the temperature to the useless hydrogen of high temperature;
Can carry out the dust separating eluting column of drip washing to the useless hydrogen after the cooling;
Can carry out condenser condensing to the useless hydrogen after the drip washing;
Can remove the steam separator of the moisture in the condensed useless hydrogen;
Can carry out the gas blower of supercharging to the useless hydrogen after dewatering;
Can be to the oil tank that removes of the useless hydrogen oil removing of supercharging;
Can carry out the deoxygenator of deoxygenation to the useless hydrogen after the oil removing;
Can carry out the exsiccant moisture eliminator to the useless hydrogen after the deoxygenation;
Can carry out filtering strainer to dried hydrogen,
Said moisture eliminator comprises the dryer unit of two alternations; All have open top, bottom opening on each said dryer unit; All be connected with dry inlet in the said open top, regenerate with the outlet of valve with valve; This drying is connected with the inlet of said strainer with the outlet of valve; This regeneration is connected with the outlet of said strainer with the inlet of valve, also is connected with well heater between the outlet of this regeneration with the inlet of valve and said strainer, all is connected with dry outlet with valve on the said bottom opening, regenerates with the inlet of valve; This drying is connected with the outlet of said deoxygenator with the inlet of valve, and this regeneration is connected with the inlet of said water cooler with the outlet of valve.
2. full recovery low pressure hydrogen retrieving arrangement according to claim 1; It is characterized in that: said full recovery low pressure hydrogen retrieving arrangement also comprises transfers the valve group; The input aperture of said accent valve group is connected with the outlet of said gas blower, and the delivery port of said accent valve group is connected with the inlet of said condensing surface or said eluting column.
3. full recovery low pressure hydrogen retrieving arrangement according to claim 1; It is characterized in that: the inlet of said water cooler is connected with the useless hydrogen outlet of industrial hydrogen production device, and the outlet of said strainer is connected with the raw hydrogen inlet of said industrial hydrogen production device through transferring the valve group.
4. according to claim 2 or 3 described full recovery low pressure hydrogen retrieving arrangements; It is characterized in that: said accent valve group comprises two valve roads that are in parallel; Wherein a valve road comprises stopping valve, variable valve, the stopping valve that is in series successively, and an other valve road comprises stopping valve.
5. full recovery low pressure hydrogen retrieving arrangement according to claim 3, it is characterized in that: said industrial hydrogen production device is the molybdenum powder reduction stove.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011203042474U CN202297109U (en) | 2011-08-19 | 2011-08-19 | Total recycle low-pressure hydrogen recovery device |
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| CN2011203042474U CN202297109U (en) | 2011-08-19 | 2011-08-19 | Total recycle low-pressure hydrogen recovery device |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102784549A (en) * | 2012-08-28 | 2012-11-21 | 温州菲德石化科技有限公司 | Automatic regenerating dust-removing dewatering device for instrument air |
| CN103537706A (en) * | 2013-10-16 | 2014-01-29 | 宜兴市炜华合金材料有限公司 | Automatic reducing gas recovery system |
| CN104785305A (en) * | 2015-03-16 | 2015-07-22 | 聊城市鲁西化工工程设计有限责任公司 | Reduction and passivation system for ammonia synthesis catalyst, and method thereof |
| CN105879670A (en) * | 2016-06-27 | 2016-08-24 | 河南省日立信股份有限公司 | Hydrogen deoxidizing and drying device of hydrogen-cooled power generator set |
| CN106145037A (en) * | 2015-04-01 | 2016-11-23 | 大连中鼎化学有限公司 | The device of hydrogen and the method for High Purity Hydrogen processed is reclaimed from silicon epitaxial furnace emptying end gas |
| CN106984824A (en) * | 2017-04-17 | 2017-07-28 | 河源普益硬质合金厂有限公司 | A kind of energy-saving tungsten oxide hydrogen reducing system |
| CN107199348A (en) * | 2017-04-17 | 2017-09-26 | 河源普益硬质合金厂有限公司 | A kind of tungsten oxide hydrogen reducing system |
| CN109437105A (en) * | 2018-10-22 | 2019-03-08 | 金堆城钼业股份有限公司 | A kind of hydrogen recovery system applied on Mo powder production line |
| CN109592640A (en) * | 2019-01-22 | 2019-04-09 | 崇义章源钨业股份有限公司 | Hydrogen purification system and method |
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2011
- 2011-08-19 CN CN2011203042474U patent/CN202297109U/en not_active Expired - Fee Related
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102784549A (en) * | 2012-08-28 | 2012-11-21 | 温州菲德石化科技有限公司 | Automatic regenerating dust-removing dewatering device for instrument air |
| CN103537706B (en) * | 2013-10-16 | 2016-07-06 | 宜兴市炜华合金材料有限公司 | A kind of reducing gas automatic recovery system |
| CN103537706A (en) * | 2013-10-16 | 2014-01-29 | 宜兴市炜华合金材料有限公司 | Automatic reducing gas recovery system |
| CN104785305B (en) * | 2015-03-16 | 2017-06-13 | 聊城市鲁西化工工程设计有限责任公司 | A kind of reduction passivation system and method for synthetic ammonia catalyst |
| CN104785305A (en) * | 2015-03-16 | 2015-07-22 | 聊城市鲁西化工工程设计有限责任公司 | Reduction and passivation system for ammonia synthesis catalyst, and method thereof |
| CN106145037A (en) * | 2015-04-01 | 2016-11-23 | 大连中鼎化学有限公司 | The device of hydrogen and the method for High Purity Hydrogen processed is reclaimed from silicon epitaxial furnace emptying end gas |
| CN106145037B (en) * | 2015-04-01 | 2018-07-27 | 大连中鼎化学有限公司 | The method that the device and High Purity Hydrogen processed of hydrogen are recycled from silicon epitaxial furnace emptying end gas |
| CN105879670A (en) * | 2016-06-27 | 2016-08-24 | 河南省日立信股份有限公司 | Hydrogen deoxidizing and drying device of hydrogen-cooled power generator set |
| CN106984824A (en) * | 2017-04-17 | 2017-07-28 | 河源普益硬质合金厂有限公司 | A kind of energy-saving tungsten oxide hydrogen reducing system |
| CN107199348A (en) * | 2017-04-17 | 2017-09-26 | 河源普益硬质合金厂有限公司 | A kind of tungsten oxide hydrogen reducing system |
| CN106984824B (en) * | 2017-04-17 | 2023-10-03 | 河源普益硬质合金厂有限公司 | Energy-saving tungsten oxide hydrogen reduction system |
| CN109437105A (en) * | 2018-10-22 | 2019-03-08 | 金堆城钼业股份有限公司 | A kind of hydrogen recovery system applied on Mo powder production line |
| CN109592640A (en) * | 2019-01-22 | 2019-04-09 | 崇义章源钨业股份有限公司 | Hydrogen purification system and method |
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