CN102580547A - Membrane module testing method - Google Patents
Membrane module testing method Download PDFInfo
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- CN102580547A CN102580547A CN201110449155XA CN201110449155A CN102580547A CN 102580547 A CN102580547 A CN 102580547A CN 201110449155X A CN201110449155X A CN 201110449155XA CN 201110449155 A CN201110449155 A CN 201110449155A CN 102580547 A CN102580547 A CN 102580547A
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- 238000012360 testing method Methods 0.000 title abstract description 97
- 238000000034 method Methods 0.000 claims abstract description 16
- 230000008595 infiltration Effects 0.000 claims description 84
- 238000001764 infiltration Methods 0.000 claims description 84
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 40
- 230000006835 compression Effects 0.000 claims description 22
- 238000007906 compression Methods 0.000 claims description 22
- 238000010998 test method Methods 0.000 claims description 19
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- 229910000831 Steel Inorganic materials 0.000 description 33
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- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 15
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 14
- 238000004088 simulation Methods 0.000 description 14
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- 239000012466 permeate Substances 0.000 description 11
- 229910052757 nitrogen Inorganic materials 0.000 description 9
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- 238000011049 filling Methods 0.000 description 4
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- 238000010586 diagram Methods 0.000 description 3
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- 238000003786 synthesis reaction Methods 0.000 description 3
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- 238000005085 air analysis Methods 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
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- 239000001569 carbon dioxide Substances 0.000 description 2
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- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 1
- 206010013786 Dry skin Diseases 0.000 description 1
- 238000005273 aeration Methods 0.000 description 1
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- 238000004587 chromatography analysis Methods 0.000 description 1
- 239000000567 combustion gas Substances 0.000 description 1
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- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The invention discloses a membrane module testing method which comprises the following steps that: delivering feed gas from a feed gas tank to a membrane module by a feed gas delivery line; separating the feed gas into permeating gas and permeating residual gas in the membrane module; and analyzing the permeating gas and the permeating residual gas by a gas analyzer. The method further comprises the following steps that: setting a permeating residual gas return line to return the permeating residual gas flowing out of the membrane module to the feed gas tank; and setting a permeating gas return line to return the permeating gas flowing out of the membrane module to the feed gas tank. According to the method provided by the invention, the test for an industrial membrane module is realized with less gas consumption and lower cost; the emission of poisonous, flammable and explosive gas is reduced; and the test safety is ensured.
Description
Technical field
The present invention relates to the gas separation membrane assembly, be specifically related to the method that the stalling characteristic of gas separation membrane assembly is tested.
Background technology
Gas separation membrane is different with selectivity to the transmitance of variety classes gas molecule; Thereby can utilize gas separation membrane from admixture of gas, to select to separate certain gas; Produce purity nitrogen and oxygen-enriched air respectively like nitrogen in the separation of air and oxygen; Separate nitrogen and hydrogen in the synthetic ammonia tailgas, carbon dioxide in the separating natural gas and methane etc.In addition, gas separation membrane can also be used for filtering and eliminating the pollutant of automobile and industrial combustion gas, so its application is very extensive.
The gas separation membrane assembly is the basic composition unit of film separation system.Usually, membrane module is that the film with some areas places in withstand voltage metal or the nonmetal putamina, film and putamina is fixed and the separative element that forms with resin binder.Film is divided into two parts with the space in the membrane module, and fluid only can see through film and arrive another part from wherein a part.
The gas separation membrane assembly is installed on film separation system need carries out performance test before.Test purpose has two: the firstth, and whether detect membrane module inside has leakage point, if there is leakage point, then unstrpped gas will make membrane module lose separation function through the feed side entering per-meate side of leakage point from film; The secondth, the separating property of detection membrane module, promptly film is for the permeation flux and the selectivity of each component in the separated gas.Test gas both can be pure gas; Like purity nitrogen, pure oxygen, pure carbon dioxide etc.; Also can be the gaseous mixture that content is confirmed, as methane concentration be 60%, gas concentration lwevel is 40% simulation biogas, nitrogen gas concn is 85%, gas concentration lwevel is 15% simulated flue gas.
Existing a kind of lab membrane component test device is as shown in Figure 1, and it comprises sweep gas steel cylinder 10 ', unstripped gas steel cylinder 20 ', membrane module 30 ' and gas-chromatography 40 '.Membrane module 30 ' is divided into feed side 31 ' and per-meate side 32 ' by film 33 '.Unstripped gas steel cylinder 20 ' is connected to the feed side 31 ' of membrane module 30 ' through pipeline 21 '.Sweep gas steel cylinder 10 ' is connected to the per-meate side 32 ' of membrane module 30 ' through pipeline 11 '.And the per-meate side 32 ' of membrane module 30 ' is connected to gas-chromatography 40 ' through pipeline 41 ', and the feed side 31 ' of membrane module 30 ' is connected to flowmeter 50 ' through pipeline 51 '.In addition, on pipeline 11 ' and 21 ', be respectively arranged with pressure-reducing valve 61 ' and 62 ', be used for steel cylinder gas is reduced pressure.On pipeline 51 ', be arranged on counterbalance valve 63 ', be used to regulate the pressure in the membrane module 30 '.
The course of work of above-mentioned membrane module testing arrangement is following: the feed side 31 ' that unstripped gas is supplied to membrane module 30 ' from unstripped gas steel cylinder 20 ' through piping 21 '.A part that gets into the unstripped gas of membrane module 30 ' can become infiltration gas via the per-meate side 32 ' that film 33 ' is penetrated into membrane module 30 ', and the remainder of unstripped gas can not become via film 33 ' infiltration and oozes residual air.Simultaneously, sweep gas is supplied to the per-meate side 32 ' of membrane module 30 ' from sweep gas steel cylinder 10 ' through piping 11 ', sweep gas is used to carry the infiltration gas that penetrates film and gets into gas-chromatography 40 ' as tested gas through pipeline 41 '.Gas-chromatography 40 ' is used to analyze the concentration of component of the gas that penetrates film, thereby understands the Penetration Signature of film.On the other hand, the residual air of oozing in the feed side 31 ' of membrane module 30 ' then gets into flowmeter 50 ' through pipeline 51 ', is used to measure the flow that oozes residual air.
The characteristics of above-mentioned method of testing are: (1) unstripped gas and sweep gas are all supplied with by high-pressure cylinder; (2) infiltration gas is emitted in the environment after being carried the entering chromatography by sweep gas, oozes also to be emitted in the environment after residual air is measured through flowmeter; (3) the infiltration gas that penetrates film is carried by sweep gas and gets into gas-chromatography and analyze.This method is suitable for that membrane area is less (generally to have only tens cm
2) the laboratory tests of membrane module.Because membrane area is less, required test gas flow is very little, and generally as long as the flow of 1～2L/min can satisfy test request, a standard steel cylinder (40L capacity, 10MPa pressure) can follow-on test 2000～4000 hours.As long as ventilation condition is good, the test gas of this flow is discharged into and is unlikely in the environment to cause danger.In addition, membrane area is less, and the permeating airflow amount that penetrates film is very little, generally is merely tens mL/min, uses sweep gas will permeate gas and carries and get into gas chromatographic column and be convenient to detect and permeate the gas component.
But above-mentioned existing testing arrangement and method can not be applied to test the technical grade membrane module.The membrane area of technical grade membrane module is at least at 1.0m
2More than, what have reaches tens m
2, the gas flow that is used to test the technical grade membrane module is very big, can reach 10Nm sometimes
3More than/the h, if adopt the method for testing of above-mentioned laboratory test device, will produce following point: (1) test gas flow is bigger, and (general steel cylinder volume is 40L to the high-pressure cylinder finite capacity, and pressure is 10MPa, is scaled the about 4Nm of gas capacity under the standard state
3), less than the one bottle of gas of just using up half an hour,, also be difficult to satisfy and surpass 24 hours follow-on test even with bus-bar a plurality of steel cylinders of connecting.When the steel cylinder atmospheric pressure is reduced to test pressure when following, must interrupt test change steel cylinder.A large amount of steel cylinder gas that use make testing cost very high as the test source of the gas.(2) for some poisonous and harmful, inflammable and explosive test gas, oozing residual air and infiltration gas, directly to be discharged in the environment harm very big, causes security incident easily.For example test gas is simulation during biogas, is discharged into concentration of methane gas in the environment and reaches 5～15% and can form explosive atmosphere.(3), carry infiltration gas with sweep gas and get into gas chromatographic column and test and be difficult to realize because technical grade membrane module membrane area is bigger, and the gas flow that penetrates film is also bigger.
Summary of the invention
The present invention is intended to overcome above-mentioned at least one defective of the prior art, and a kind of method of testing that is applicable to the test of technical grade membrane module is provided.
Propose a kind of membrane module method of testing according to the present invention, may further comprise the steps:
Unstripped gas is delivered to membrane module from the unstripped gas storage tank through the unstripped gas transfer pipeline;
In membrane module, unstripped gas is separated into infiltration gas and oozes residual air; And
Analyze respectively permeating gas and oozing residual air through gas analyzer,
Wherein, said method also comprises step:
The residual air return line is oozed in setting, and the residual air of oozing that will flow out in the membrane module is returned the unstripped gas storage tank through the said residual air return line that oozes; With
Infiltration gas return line is set, and the infiltration gas that will flow out in the membrane module that will flow out in the membrane module returns the unstripped gas storage tank through said infiltration gas return line.
According to one embodiment of present invention; Wherein, Said method comprising the steps of: the gas sample pipeline is set, through said gas sample pipeline to the infiltration gas that separates through membrane module with ooze residual air and take a sample respectively, and the gas that will be taken a sample is transported to gas analyzer.
According to one embodiment of present invention; Wherein, The two ends of said gas sample pipeline are connected to infiltration gas return line and ooze on the residual air return line, and, in said gas sample pipeline, triple valve is set; Two input ports of this triple valve receive the infiltration gas of being taken a sample respectively and ooze residual air, and the output port of this triple valve is connected to gas analyzer.
According to one embodiment of present invention; Wherein, Said method comprising the steps of: on said unstripped gas transfer pipeline, set gradually compressor, flowmeter and compression unstripped gas storage tank, make unstripped gas be transported to said membrane module through behind compressor, flowmeter and the compression unstripped gas storage tank successively from the unstripped gas storage tank.
According to one embodiment of present invention; Wherein, Said method comprising the steps of: the water vapour feeding pipe is set; Said water vapour feeding pipe is connected between compression unstripped gas storage tank and the membrane module, makes the compression unstripped gas that flows out from compression unstripped gas storage tank and steam from said water vapour feeding pipe converge the back and gets into membrane module.
According to one embodiment of the present of invention, wherein, said method comprising the steps of: on said water vapour feeding pipe, water pot, measuring pump and heating furnace are set, measuring pump quantitatively pumps into heating furnace with water from water pot, heating furnace with water vapor to produce water vapour.
According to one embodiment of present invention; Wherein, Said method comprising the steps of: set gradually counterbalance valve on the residual air return line, ooze residual air freeze dryer and flowmeter said oozing, make from membrane module ooze residual air successively through counterbalance valve, ooze the residual air freeze dryer and flowmeter returns the unstripped gas storage tank.
According to one embodiment of present invention; Wherein, Said method comprising the steps of: on said infiltration gas return line, set gradually the first infiltration gas surge tank, vavuum pump, the second infiltration gas surge tank, infiltration air compressor and infiltration gas freeze dryer, make infiltration gas return the unstripped gas storage tank through the first infiltration gas surge tank, vavuum pump, the second infiltration gas surge tank, infiltration air compressor and infiltration gas freeze dryer successively from membrane module.
Membrane module method of testing of the present invention relates to a kind of membrane module testing arrangement, comprising: the unstripped gas storage tank is used for storage of raw materials gas; Membrane module is used for unstripped gas is separated into infiltration gas and oozes residual air; The unstripped gas transfer pipeline is used for unstripped gas is delivered to membrane module from the unstripped gas storage tank, and gas analyzer; Be used for the infiltration gas that separates through membrane module or ooze residual air analysis; Wherein, said membrane module testing arrangement also comprises: ooze the residual air return line, the residual air of oozing that flows out in the membrane module is returned the unstripped gas storage tank through the said residual air return line that oozes; With infiltration gas return line, the infiltration gas that flows out in the membrane module returns the unstripped gas storage tank through said infiltration gas return line.
Wherein, said membrane module testing arrangement also comprises the gas sample pipeline, through said gas sample pipeline to the infiltration gas that separates through membrane module with ooze residual air and take a sample respectively, and the gas that will be taken a sample is transported to gas analyzer.
Wherein, The two ends of said gas sample pipeline are connected to infiltration gas return line and ooze on the residual air return line; And; In said gas sample pipeline, triple valve is set, two input ports of this triple valve receive the infiltration gas of being taken a sample respectively and ooze residual air, and the output port of this triple valve is connected to gas analyzer.
Wherein, said unstripped gas transfer pipeline is provided with compressor, flowmeter and compression unstripped gas storage tank, is transported to said membrane module through behind compressor, flowmeter and the compression unstripped gas storage tank successively from the unstripped gas of unstripped gas storage tank.
Wherein, Said membrane module testing arrangement also comprises the water vapour feeding pipe; Said water vapour feeding pipe is connected between compression unstripped gas storage tank and the membrane module, and the compression unstripped gas that flows out from compression unstripped gas storage tank converges the back with the steam from said water vapour feeding pipe and gets into membrane module.
Wherein, said water vapour feeding pipe is provided with water pot, measuring pump and heating furnace, and measuring pump quantitatively pumps into heating furnace with water from water pot, heating furnace with water vapor to produce water vapour.
Wherein, be disposed with counterbalance valve on the residual air return line, ooze residual air freeze dryer and flowmeter said oozing, from membrane module ooze residual air successively through counterbalance valve, ooze the residual air freeze dryer and flowmeter returns the unstripped gas storage tank.
Wherein, On said infiltration gas return line, be disposed with the first infiltration gas surge tank, vavuum pump, the second infiltration gas surge tank, infiltration air compressor and infiltration gas freeze dryer, return the unstripped gas storage tank through the first infiltration gas surge tank, vavuum pump, the second infiltration gas surge tank, infiltration air compressor and infiltration gas freeze dryer successively from the infiltration gas of membrane module.
Membrane module method of testing of the present invention has the following advantages: the test to the technical grade membrane module is realized with less gas consumption and lower cost in (1).(2) discharging of minimizing poisonous and harmful, flammable explosive gas ensures test safety.(3) do not re-use sweep gas and carry infiltration gas and get into chromatogram, but through the mode of a plurality of sample points is set, use the gas analyzer analysis again after utilizing the sample point sampling, need not use the for example sweep gas of hydrogen, further reduce testing cost and improve security.
Description of drawings
Fig. 1 has explained the system block diagram according to the membrane module testing arrangement of prior art;
Fig. 2 shows the system block diagram of membrane module testing arrangement according to an embodiment of the invention.
The specific embodiment
Below in conjunction with accompanying drawing through example shows membrane module method of testing of the present invention and the membrane module testing arrangement that relates to.
Fig. 2 shows the system block diagram of membrane module testing arrangement according to an embodiment of the invention.As shown in Figure 2, comprise unstripped gas steel cylinder 10 according to the membrane module testing arrangement of this embodiment, as the unstripped gas supply source, be used for to unstripped gas storage tank 11 base feed gas.Unstripped gas storage tank 11 again through unstripped gas transfer pipeline 100 with unstripped gas delivery film assembly 60.Unstripped gas transfer pipeline 100 is provided with compressor 12, mass flowmenter 13, compression unstripped gas surge tank 14.Wherein, compressor 12 is used for the unstripped gas supercharging.Compression unstripped gas surge tank 14 is used to eliminate the gas pulses of compressor 12 outlets.Membrane module 60 is pressure vessels that film 61 is housed, and membrane module 60 is placed in the membrane module chamber 64 that is provided with heater 65, so that come the operating ambient temperature of controlling diaphragm assembly through heater 65.Unstripped gas from unstripped gas storage tank 11 gets into compression unstripped gas surge tank 14 after compressor 12 superchargings, and the feed side that behind compression unstripped gas surge tank 14, gets into membrane module 60.Unstripped gas is through being separated into infiltration gas and oozing residual air behind the membrane module 60.And, separated infiltration gas with ooze residual air and be sampled to online gas analyzer 50 and analyze.
In addition, as shown in Figure 2, also comprise according to the membrane module testing arrangement of this embodiment and to ooze residual air return line 200, ooze residual air and return unstripped gas storage tank 11 through oozing residual air return line 200, so that recycle from membrane module 60.Be disposed with counterbalance valve 21, ooze residual air freeze dryer 22 and flowmeter 23 along oozing the residual air return flow path said oozing on the residual air return line 200, from membrane module 60 ooze residual air successively through counterbalance valve 21, ooze residual air freeze dryer 22 and flowmeter 23 returns unstripped gas storage tank 11.
In addition, as shown in Figure 2, the membrane module testing arrangement also comprises infiltration gas return line 300, and infiltration gas returns unstripped gas storage tank 11 from membrane module 60 through infiltration gas return line 300, so that recycle.Be disposed with first surge tank 31, vavuum pump 32, second surge tank 33, compressor 34 and infiltration gas freeze dryer 35 at infiltration gas return line 300 upper edges infiltration gas return flow path, return unstripped gas storage tank 11 through first surge tank 31, vavuum pump 32, second surge tank 33, compressor 34 and infiltration gas freeze dryer 35 successively from the infiltration gas of membrane module 60.Wherein, compressor 34 is used to permeate the gas supercharging, and vavuum pump 32 is used for the gas that penetrates film is extracted out from membrane module.
In addition, as shown in Figure 2, also comprise gas sample pipeline 500 according to the membrane module testing arrangement of this embodiment, be used for to the infiltration gas that separates through membrane module 60 with ooze residual air and take a sample, and the gas that will be taken a sample is transported to gas analyzer 50.According to this embodiment; The two ends of gas sample pipeline 500 are connected to infiltration gas return line 300 and ooze on the residual air return line 200; And; Triple valve 51 is set in gas sample pipeline 500, and two input ports of this triple valve 51 receive the infiltration gas of being taken a sample respectively and ooze residual air, and the output port of this triple valve is connected to online gas analyzer 50.Like this, can adopt a gas analyzer 50, through the switching controls of triple valve 51, optionally to permeating gas or oozing residual air analysis.Online gas analyzer 50, the Gasboard-3500 explosion-proof type infrared gas analyser that for example can adopt Wuhan Sifang Photoelectric Science & Technology Co., Ltd. to produce perhaps also can adopt the Agilent7890A gas-chromatography.
In addition, as shown in Figure 2, also comprise water vapour feeding pipe 400 according to the membrane module testing arrangement of this embodiment.Water vapour feeding pipe 400 is connected between compression unstripped gas surge tank 14 and the membrane module 60; Water vapour feeding pipe 400 is provided with water pot 41, measuring pump 42 and heating furnace 43; Measuring pump 42 quantitatively pumps into heating furnace 43 with water from water pot 41, heating furnace 43 with water vapor to produce water vapour.Thereby, converge back entering membrane module 60 from the steam and the compression unstripped gas that flows out from compression unstripped gas surge tank 14 of water vapour feeding pipe 400, so that separated by membrane module 60.
In addition; Though it is not shown among Fig. 2; Membrane module testing arrangement according to this embodiment can also comprise the various control instruments that are connected in the pipeline, like other auxiliary equipments such as flow displaying instrument, pressure display instrument, temperature control instrument, fluid humidity display etc. and valve gears.
Utilize the process of membrane module testing arrangement test membrane assembly shown in Figure 2 following:
At first use unstripped gas steel cylinder 10 in the testing arrangement pipeline, to inflate, after manifold pressure reaches setting value, close unstripped gas steel cylinder 10; Compressor and starting 12 makes the unstripped gas supercharging get into surge tank 14; Measuring pump 42 quantitatively pumps into heating furnace 43 with water from water pot 41, heating furnace 43 is mixed and fed into membrane module 60 with the unstripped gas of water vapour after the water vapor and surge tank 14 outflows; Unstripped gas tunicle 61 is separated into two strands of gas of the infiltration gas that oozes residual air and per-meate side of retentate side in membrane module 60; Feed side pressure is regulated through counterbalance valve 21, oozes residual air and after oozing residual air freeze dryer 22 dryings and flowmeter 23 meterings, returns unstripped gas storage tank 11; Infiltration gas is by vavuum pump 32 suction surge tanks 31; Get into surge tank 33 through vavuum pump 32 backs; Permeate gas this moment is normal pressure; Boosting through compressor 34 and permeating gas freeze dryer 35 dehydration back gets into unstripped gas storage tanks 11 and oozes residual air and mix, and gaseous mixture can be compressed machine 12 once more and compress, and is transported to membrane module 60 with separated.In the above-mentioned gas cyclic process, can be at any time through gas sample pipeline 500, to the infiltration gas that separates through membrane module 60 with ooze residual air and take a sample, and carry out analytical test with the component of oozing residual air, concentration etc. by 50 pairs of infiltrations of online gas analyzer gas.
As stated, according to the present invention, unstripped gas gets into membrane module to be measured after boosting through compressor; Tunicle is separated into infiltration gas and oozes two strands of residual air, oozes the pressure that residual air has kept unstripped gas basically, can directly return the unstripped gas storage tank; Infiltration gas is extracted out membrane module by vavuum pump, and vacuum pump outlet place infiltration gas is normal pressure, also gets into the unstripped gas storage tank through after the compressor boost; These two strands of gas merge into unstripped gas again in the unstripped gas storage tank, for recycling.Therefore, form the closed cycle path, unstripped gas can be recycled in testing arrangement according to membrane module testing arrangement of the present invention.
Generally speaking; Membrane module method of testing of the present invention has the following advantages: (1) conservation gas; Use steel cylinder in the testing arrangement pipeline, to inflate before the testing arrangement operation, promptly close steel cylinder after reaching certain pressure, the testing arrangement run duration need not to reuse steel cylinder gas.If test traffic is 10Nm
3/ h only can use less than half an hour for gas in steel cylinder of open system, and testing arrangement of the present invention adopts closed circuit circulatory system; Different according to test pressure; A cyclinder gas can satisfy test request 5～10 times, and the time of each test is not limit, and has greatly saved testing cost.(2) the test period testing arrangement is to any gas of environmental emission, gas emptying in only when EOT, just needing install, and the gas flow of single voiding is for testing the aeration quantity of preceding steel cylinder gas, and the processing that is easy to ventilate is unlikely to produce potential safety hazard.(3) a plurality of sample points are set in testing arrangement, sampling mode usable samples bag perhaps directly is connected with the gas component in-line analyzer, does not use sweep gas, and for example hydrogen can further reduce testing cost, improves security.
It below is the concrete example application of membrane module method of testing of the present invention.
Example 1
Use the membrane module testing arrangement to investigate the permselective property ability of hollow fiber film assembly for simulation biogas.Filling 4.5m in single the hollow fiber film assembly
2Hollow-fibre membrane, test gas is simulation biogas (60%CH
4, 40%CO
2).At first residual gas in the testing arrangement pipeline is extracted out with vavuum pump; Once more testing arrangement is vacuumized after replacing three times with purity nitrogen then, then use the steel cylinder simulation biogas for preparing in advance in testing arrangement, to be inflated to pressure and be 0.2MPa, close unstripped gas steel cylinder 10; Compressor and starting 12; Make unstripped gas boost to 0.5MPa, open vacuum pump 32 makes the testing arrangement operation with compressor 34, and flow adjustment range is 1.0～10.0Nm
3/ h.Do not reach the situation that flow is set if actual flow occurs when regulating flow, can in system, replenish test gas with steel cylinder gas.If environment temperature is lower than 10 ℃ Celsius, then open the heater 65 in the membrane module chamber 64, temperature is set at 20～40 ℃.The testing arrangement operation was opened heating furnace 43 after 1 hour, and setting heating-up temperature is 150 ℃, opened measuring pump 42, and the setting pump discharge is 1.0～5.0mL/min.The testing arrangement operation can be from oozing residual air and infiltration gas sample point sampling and testing after 12 hours.
Example 2
The use test device is investigated the permselective property ability of hollow fiber film assembly for the simulation natural gas.Filling 4.5m in single the hollow fiber film assembly
2Hollow-fibre membrane, test gas is simulation natural gas (90%CH
4, 10%CO
2).At first will install residual gas extraction in the pipeline with vavuum pump; Once more device is vacuumized after replacing three times with purity nitrogen then, then use the steel cylinder simulation natural gas for preparing in advance in testing arrangement, to be inflated to pressure and be 1.0MPa, close unstripped gas steel cylinder 10; Compressor and starting 12; Make unstripped gas boost to 1.5MPa, open vacuum pump 32 makes the testing arrangement operation with compressor 34, and flow adjustment range is 1.0～10.0Nm
3/ h.Do not reach the situation that flow is set if actual flow occurs when regulating flow, can in system, replenish test gas with steel cylinder gas.If environment temperature is lower than 10 ℃ Celsius, then open the heater 65 in the membrane module chamber 64, temperature is set at 20～40 ℃.The testing arrangement operation was opened heating furnace 43 after 1 hour, and setting heating-up temperature is 180 ℃, opened measuring pump 42, and the setting pump discharge is 1.0～5.0mL/min.The testing arrangement operation can be from oozing residual air and infiltration gas sample point sampling and testing after 12 hours.
Example 3
The use test device is investigated the permselective property ability of hollow fiber film assembly for the simulation power plant flue gas.Filling 4.5m in single the hollow fiber film assembly
2Hollow-fibre membrane, test gas is simulation power plant flue gas (85%N
2, 15%CO
2).At first will install residual gas extraction in the pipeline with vavuum pump; Then use the steel cylinder simulation power plant flue gas for preparing in advance in testing arrangement, to be inflated to pressure and be 0.2MPa; Close unstripped gas steel cylinder 10, compressor and starting 12 makes unstripped gas boost to 0.5MPa; Open vacuum pump 32 makes the testing arrangement operation with compressor 34, and flow adjustment range is 1.0～10.0Nm
3/ h.Do not reach the situation that flow is set if actual flow occurs when regulating flow, can in system, replenish test gas with steel cylinder gas.If environment temperature is lower than 10 ℃ Celsius, then open the heater 65 in the membrane module chamber 64, temperature is set at 20～40 ℃.The testing arrangement operation was opened heating furnace 43 after 1 hour, and setting heating-up temperature is 150 ℃, opened measuring pump 42, and the setting pump discharge is 1.0～5.0mL/min.The testing arrangement operation can be from oozing residual air and infiltration gas sample point sampling and testing after 12 hours.
Example 4
The use test device is investigated the permselective property ability of hollow fiber film assembly for the simulation synthesis gas.Filling 4.5m in single the hollow fiber film assembly film
2Hollow-fibre membrane, test gas is simulation synthesis gas (40%H
2, 40%N
2, 20%CO
2).At first residual gas in the testing arrangement pipeline is extracted out with vavuum pump; Once more testing arrangement is vacuumized after replacing three times with purity nitrogen then; Then use the steel cylinder simulation synthesis gas for preparing in advance in testing arrangement, to be inflated to pressure and be 0.2MPa; Close unstripped gas steel cylinder 10 compressor and starting 12 and boost to 0.5MPa, open vacuum pump 32 makes the device operation with compressor 34, and flow adjustment range is 1.0～10.0Nm
3/ h.Do not reach the situation that flow is set if actual flow occurs when regulating flow, can in system, replenish test gas with steel cylinder gas.If environment temperature is lower than 10 ℃ Celsius, then open the heater 65 in the membrane module chamber 64, temperature is set at 20～40 ℃.The testing arrangement operation was opened heating furnace 43 after 1 hour, and setting heating-up temperature is 150 ℃, opened measuring pump 42, and the setting pump discharge is 1.0～5.0mL/min.The testing arrangement operation can be from oozing residual air and infiltration gas sample point sampling and testing after 12 hours.
Below just enumerated several examples of using membrane module method of testing of the present invention, but membrane module method of testing of the present invention can be applied to any occasion that gas separation membrane is tested.Therefore; More than embodiments of the invention have only exemplarily been explained in description, but not are used to limit the present invention, know it will be understood by those skilled in the art that; Under the situation that does not depart from essence of the present invention, all within the scope of the invention to any distortion that the present invention did.Each accompanying drawing is just to schematic illustration of the present invention, and unrestricted the present invention.
Claims (8)
1. membrane module method of testing may further comprise the steps:
Unstripped gas is delivered to membrane module from the unstripped gas storage tank through the unstripped gas transfer pipeline;
In membrane module, unstripped gas is separated into infiltration gas and oozes residual air; And
Analyze respectively permeating gas and oozing residual air through gas analyzer,
It is characterized in that said method also comprises step:
The residual air return line is oozed in setting, and the residual air of oozing that will flow out in the membrane module is returned the unstripped gas storage tank through the said residual air return line that oozes; With
Infiltration gas return line is set, and the infiltration gas that will flow out in the membrane module that will flow out in the membrane module returns the unstripped gas storage tank through said infiltration gas return line.
2. membrane module method of testing according to claim 1 is characterized in that, and is further comprising the steps of:
The gas sample pipeline is set, through said gas sample pipeline to the infiltration gas that separates through membrane module with ooze residual air and take a sample respectively, and the gas that will be taken a sample is transported to gas analyzer.
3. membrane module method of testing according to claim 2 is characterized in that, and is further comprising the steps of:
The two ends of said gas sample pipeline are connected to infiltration gas return line and ooze on the residual air return line; And; In said gas sample pipeline, triple valve is set; Two input ports of this triple valve receive the infiltration gas of being taken a sample respectively and ooze residual air, and the output port of this triple valve is connected to gas analyzer.
4. according to each described membrane module method of testing among the claim 1-3, it is characterized in that, further comprising the steps of:
On said unstripped gas transfer pipeline, set gradually compressor, flowmeter and compression unstripped gas storage tank, make unstripped gas be transported to said membrane module through behind compressor, flowmeter and the compression unstripped gas storage tank successively from the unstripped gas storage tank.
5. membrane module method of testing according to claim 4 is characterized in that, and is further comprising the steps of:
The water vapour feeding pipe is set, and said water vapour feeding pipe is connected between compression unstripped gas storage tank and the membrane module, makes the compression unstripped gas that flows out from compression unstripped gas storage tank and steam from said water vapour feeding pipe converge the back and gets into membrane module.
6. membrane module method of testing according to claim 5; It is characterized in that; Further comprising the steps of: on said water vapour feeding pipe, water pot, measuring pump and heating furnace are set, measuring pump quantitatively pumps into heating furnace with water from water pot, heating furnace with water vapor to produce water vapour.
7. according to each described membrane module method of testing among the claim 1-3, it is characterized in that, further comprising the steps of:
Set gradually counterbalance valve on the residual air return line, ooze residual air freeze dryer and flowmeter said oozing, make from membrane module ooze residual air successively through counterbalance valve, ooze the residual air freeze dryer and flowmeter returns the unstripped gas storage tank.
8. according to each described membrane module method of testing among the claim 1-3, it is characterized in that, further comprising the steps of:
On said infiltration gas return line, set gradually the first infiltration gas surge tank, vavuum pump, the second infiltration gas surge tank, infiltration air compressor and infiltration gas freeze dryer, make infiltration gas return the unstripped gas storage tank through the first infiltration gas surge tank, vavuum pump, the second infiltration gas surge tank, infiltration air compressor and infiltration gas freeze dryer successively from membrane module.
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| CN103255048A (en) * | 2013-04-19 | 2013-08-21 | 北京科技大学 | Device and method for fixing carbon dioxide by utilizing biomineralization of spirulina platensis in seawater system |
| CN103432909A (en) * | 2013-08-02 | 2013-12-11 | 中膜科技(苏州)有限公司 | Membrane module performance detection method |
| CN104069742A (en) * | 2014-07-10 | 2014-10-01 | 马钢(集团)控股有限公司 | Membrane element detection device for desalting water station and membrane element detection method |
| CN106017957A (en) * | 2016-05-26 | 2016-10-12 | 天邦膜技术国家工程研究中心有限责任公司 | Helium-containing water-soluble gas dehydration unit evaluation system |
| CN106621827A (en) * | 2016-12-14 | 2017-05-10 | 南京九思高科技有限公司 | Flat sheet membrane permeability testing assembly |
| CN107789991A (en) * | 2017-12-04 | 2018-03-13 | 南京九思高科技有限公司 | The detection means and detection method of preferential organic gas seperation film permeance property thoroughly |
| CN109588052A (en) * | 2017-07-28 | 2019-04-05 | 韩国电力公社 | For evaluating the system and its apparatus of carbon dioxide separation membrane module performance |
| CN109588044A (en) * | 2017-07-28 | 2019-04-05 | 韩国电力公社 | System for detecting carbon dioxide separation film device exception |
| CN111266015A (en) * | 2020-03-05 | 2020-06-12 | 天津工业大学 | Constant volume variable pressure method test system of gas transmittance |
| CN112808016A (en) * | 2021-01-06 | 2021-05-18 | 中国原子能科学研究院 | Membrane module testing device, membrane module testing system and membrane module testing method |
| CN113396009A (en) * | 2019-03-07 | 2021-09-14 | 日本多宁股份有限公司 | Hydrogenation device and method for determining consumption of hydrogen permeable membrane |
| CN116426974A (en) * | 2023-03-03 | 2023-07-14 | 浙江蓝能氢能科技股份有限公司 | Gas permeation system and testing method of electrolytic hydrogen production device |
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| CN103255048A (en) * | 2013-04-19 | 2013-08-21 | 北京科技大学 | Device and method for fixing carbon dioxide by utilizing biomineralization of spirulina platensis in seawater system |
| CN103432909A (en) * | 2013-08-02 | 2013-12-11 | 中膜科技(苏州)有限公司 | Membrane module performance detection method |
| CN104069742A (en) * | 2014-07-10 | 2014-10-01 | 马钢(集团)控股有限公司 | Membrane element detection device for desalting water station and membrane element detection method |
| CN106017957A (en) * | 2016-05-26 | 2016-10-12 | 天邦膜技术国家工程研究中心有限责任公司 | Helium-containing water-soluble gas dehydration unit evaluation system |
| CN106621827A (en) * | 2016-12-14 | 2017-05-10 | 南京九思高科技有限公司 | Flat sheet membrane permeability testing assembly |
| CN106621827B (en) * | 2016-12-14 | 2023-06-20 | 江苏久膜高科技股份有限公司 | Flat membrane permeability test assembly |
| CN109588052A (en) * | 2017-07-28 | 2019-04-05 | 韩国电力公社 | For evaluating the system and its apparatus of carbon dioxide separation membrane module performance |
| CN109588044A (en) * | 2017-07-28 | 2019-04-05 | 韩国电力公社 | System for detecting carbon dioxide separation film device exception |
| US10821405B2 (en) * | 2017-07-28 | 2020-11-03 | Korea Elastic Power Corporation | System for evaluating performance of carbon dioxide separation membrane module and device therefor |
| CN107789991A (en) * | 2017-12-04 | 2018-03-13 | 南京九思高科技有限公司 | The detection means and detection method of preferential organic gas seperation film permeance property thoroughly |
| CN113396009A (en) * | 2019-03-07 | 2021-09-14 | 日本多宁股份有限公司 | Hydrogenation device and method for determining consumption of hydrogen permeable membrane |
| CN113396009B (en) * | 2019-03-07 | 2024-05-03 | 日本多宁股份有限公司 | Hydrogenation apparatus and method for determining consumption of hydrogen permeable membrane |
| CN111266015A (en) * | 2020-03-05 | 2020-06-12 | 天津工业大学 | Constant volume variable pressure method test system of gas transmittance |
| CN112808016A (en) * | 2021-01-06 | 2021-05-18 | 中国原子能科学研究院 | Membrane module testing device, membrane module testing system and membrane module testing method |
| CN116426974A (en) * | 2023-03-03 | 2023-07-14 | 浙江蓝能氢能科技股份有限公司 | Gas permeation system and testing method of electrolytic hydrogen production device |
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