CN1091993A - Low-grade fever regeneration gas dry decontamination method and device thereof in the body - Google Patents
Low-grade fever regeneration gas dry decontamination method and device thereof in the body Download PDFInfo
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- CN1091993A CN1091993A CN 94103379 CN94103379A CN1091993A CN 1091993 A CN1091993 A CN 1091993A CN 94103379 CN94103379 CN 94103379 CN 94103379 A CN94103379 A CN 94103379A CN 1091993 A CN1091993 A CN 1091993A
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Disclose low-grade fever regeneration gas dry decontamination method and device thereof in a kind of body, belonged to gas dry decontamination technical field.This method comprises the gas absorption drying, filters and removes profit and processes such as dust and adsorbent parsing regeneration, and special equipment has drier, multi-grade oil water filter and multistage dust filter unit.It is big to the invention solves the regeneration energy consumption, valve is fragile, technical problem such as adsorbent cracky service life is low, improved finished product makings amount, particularly increase the flow of handling gas, can be used for handling gases such as air, oxygen, nitrogen, suiting in industrial departments such as petrochemical industry, weaving, food, building, metallurgy, telecommunication, electronics provides dry decontamination gas for pneumatic element and control system and technology usefulness gas.
Description
The present invention relates to Compressed Gas adsorption dry, filter and remove method and the special equipment thereof that profit, dust and adsorbent are resolved regeneration, belong to compressed air drying purification techniques field.
The compressed air drying method relevant with the present invention can be divided into the heatless regeneration method by the difference of adsorbent regeneration method, external thermal regeneration method, thermal regeneration method in the body, external low-grade fever method of reproduction.
1. heatless regeneration compressed air drying surface owned by France absorption is according to the transformation absorption principle, utilizes the adsorbent surface gas pressure to have the characteristic that averages out with the ambient gas partial pressure, and adsorbent is adsorbed under pressure state, resolves regeneration under normal pressure.Along with air is compressed, content is that the dividing potential drop that the hydraulic pressure of air a few minutes one steams is improved, water vapour in the compressed air, when contacting with the very low adsorbent of surface water steam pressure, shift to adsorbent surface, progressively improve the adsorbent surface steam partial pressure until balance, Here it is transformation absorption principle.Behind the moisture content of adsorbent surface absorption 0.2～0.5Wt%, the dry air that will be decompressed to normal pressure immediately feeds air dryer to be regenerated, at this moment, the adsorbent surface steam partial pressure is higher than the dividing potential drop of water vapour in the regenerative dry air of feeding in the drier, makes the adsorbent desorption and regeneration.
The process of adsorbents adsorb moisture content is an exothermic process, emits 721 heats that block as silica gel absorption heat for every absorption one kg of water, and molecular sieve adsorption heat is every absorption one kg of water heat release 915 cards.When two driers switch fast, switched once in per 5 minutes, the heat that adsorbent stores can be fully utilized, heat of adsorption improves adsorbent bed temperature in addition, the drying air temperature that reduces to normal pressure also improves thereupon, so the heatless regeneration method does not need extraneous supply heat, only the heat of adsorption of utilization savings itself reaches the purpose that adsorbent is resolved regeneration.
The shortcoming of heatless regeneration method is that regeneration energy consumption about 15% suitable range of flow is little, and flow is at 60NM
3Comparatively suitable below the/Min; Two drier switching cycles are short, will switch once every 5 minutes valves, and valve will move more than 100,000 times in 1 year, so valve is fragile; The adsorbent bed adsorbent that makes of berserk is broken easily up and down repeatedly when adsorbents adsorb and regeneration, causes Powdered adsorbent, and adsorbent is reduced service life greatly.
Fig. 1 is the device of heatless regeneration compressed air drying method.Fig. 2 represents drier A work, drier B regeneration.Fig. 3 represents drier A work, drier B pressurising.Fig. 4 represents drier A regeneration, drier B work.Fig. 5 represents drier A pressurising, drier B work.
2. the degree of depth absorption owned by France of external thermal regeneration compressed air drying.Behind the certain moisture content of adsorbents adsorb, as silica gel suction 5～8Wt%, aluminium glue suction 4～6Wt%, molecular sieve suction 10～12Wt% need resolve regeneration and handle.Resolving is endothermic process, evaporate one kilogram of about 1000～2800 card heat of absorption moisture content calorific requirement, this just must use the method for heating, promptly adsorbent bed be in change to imitate adsorption site before, outside air is sent into electric heater or steam heater with Roots blower, hot-air feeds drier to be regenerated, and makes adsorbent resolve regeneration.
In order to recover the adsorption capacity of adsorbent, also need adsorbent is cooled to 50 ℃, the cycle is 8 hours, switches once in 4 hours.This method belongs to degree of depth absorption, does not heat and can't realize adsorbent parsing regeneration.
Fig. 6 is the device of external thermal regeneration compressed air drying method, and it comprises Roots blower, external heater, and drier, cross valve and automatic control part, two drier exchange work and regeneration, the cycle is 8 hours.Humid air is entered in the drier A through inlet cross valve 18 by humid air inlet valve 10 during work, carries out adsorption dry from the bottom to top in adsorbent bed, is used for the user by 13 outputs of outlet cross valve.During regeneration, deliver to electric heater 16 through the atmospheric air of filter by Roots blower 17, be heated to 180～220 ℃, enter drier A through outlet cross valve 13 again, from top to bottom heat drying agent behind the parsing moisture content, is discharged by inlet cross valve 18.After heating 2～3 hours, when the adsorbent bed temperature in drier bottom rises to 70～80 ℃, regeneration ending stops heating and air blast, uses the compressed air of dry decontamination instead, compressed air pressure behind restricting orifice is reduced to normal pressure≤0.035MPa, enter drier A by outlet cross valve 13, carried out cold blowing 3～4 hours, when adsorbent bed temperature of lower is reduced to 50 ℃, promptly stop cold blowing and treat next cycling, the regeneration gas consumption is 5～8%.Drier A and B alternation and regeneration.
The shortcoming of external thermal regeneration method is that external electric heater capacity is big, only utilizes the convection heat transfer of air-flow, and power consumption is big, heat loss is big, and the plant area area is big, need be heated to 180～220 ℃ during adsorbent reactivation, the temperature height also need be used the cold blowing of dry decontamination air, consumes many energy again.
3. thermal regeneration compressed air drying method in the body, its operation principle and work period consubstantiality heat method of reproduction outward.Fig. 7 is the device of this method, during work, humid air is entered in the drier B22 by cross valve 19, pass through adsorbent bed from top to bottom through filter 21, by the screen pack 23 of drier B22 bottom, enter the sleeve pipe of electric heater 20 again, make progress along sleeve pipe, dry gas outlet through the sleeve pipe upper end provides the user to use by check-valves 28.During adsorbent reactivation, dry air through choke valve, check-valves 28 to drier A26, in sleeve pipe, from top to bottom heated by electric heater 27, be heated to 180～200 ℃, the screen pack 23 of thermal current bottom drier A enters adsorbent bed, discharges from the bottom to top and by filter 21 and cross valve 19.
The shortcoming of this method is, because regeneration air need be heated to 180～220 ℃, power consumption is big, and regeneration gas needs 5～8% equally; In addition,, and cause bias current, destroy adsorbent bedly, influence the quality of dry air, at 100HM because inlet filter 21 secundly in drier arranges
3The drier that/Min flow is following; Whole technical process valve is many, and consumable accessory is many, and maintenance management is loaded down with trivial details.
4. external low-grade fever regeneration compressed air drying method, this method is outside drier dry air to be heated to 120～150 ℃, sends into then to make adsorbent resolve regeneration in the dry gas.Fig. 8 is the device of this method.During work, humid air is entered in the drier A29 by humid air inlet 35, by adsorbent bed, sends to use through check-valves 48 more from top to bottom.During regeneration, dry air enters electric heater 45 through gate valve 44 and restricting orifice 43, air themperature is heated to 120～150 ℃, send into the bottom of drier B then through check-valves 46, from the bottom to top by adsorbent bed, make adsorbent resolve regeneration, and moisture content is taken away, drying device top exit, pneumatic stopping valve 37 and silencer 36 are discharged.
The air heating-up temperature is not high during this method regeneration, and energy consuming ratio is few than the first two kind method, but heater is external at drier, and heat loss is big, and valve is many in the technological process, and consumable accessory is many, causes operating maintenance loaded down with trivial details.
The invention belongs to little heating compressed air drying purification method in the body, during adsorbent reactivation, dry gas is heated to 120～150 ℃ by the heater in the drier inner sleeve, entire method, and technological process and device thereof all are different from the prior art of above narration.Through retrieval, the document more relevant with the present invention has the open 107725(A of Japan's special permission)/88, open day on May 12nd, 1988, and U.S. Pat 2557557, the June 19 nineteen fifty-one day for announcing.
Fig. 9 and Figure 10 represent a kind of one-level candle filter.Figure 11 and Figure 12 represent a kind of filter that is constituted by cyclone and silk screen filter layer.Multi-grade oil water filter of the present invention and multistage dust filter unit are through retrieving the report that all finds no the same structure filter.
The purpose of this invention is to provide a kind of compressed air drying purification method and device thereof, solved in the adsorbent parsing regenerative process and consumed energy greatly, adsorbent is damaged easily, two drier switching cycles are short, the how fragile and dry gas of the valve switching times problems such as suitable range of flow is restricted that are secondary polluted.
A kind of compressed air drying purification method of the present invention, comprise the absorbing process of institute's water content in the adsorbents adsorb Compressed Gas and the regeneration technology that adsorbent is resolved, it is characterized in that the Compressed Gas that wets at first enters the multi-grade oil water filter and removes the You Heshui that is contained and carry out absorbing process again, after in drier, finishing absorbing process, dry gas enters multistage dust filter unit again, removes the adsorbent powder dust particle of being carried secretly; Compressed Gas behind the de-oiled water is entered in the drier by top, enters adsorbent bedly downwards through inlet filter, again through the egress filtering device, is discharged by the outlet of drier bottom dry gas; When adsorbent is resolved regeneration, Compressed Gas after the dry or drying dedusting is through reduced pressure treatment, enter in heater and the inner sleeve by drier top, by the little heating of the heater in the inner sleeve, 120～150 ℃ of heating-up temperatures, thermal current after the heating enters drier outlet at bottom filter from top to bottom in inner sleeve, then upwards through the adsorbent bed adsorbent resolving of carrying out.
Special-purpose drier of the present invention, can hocket absorbing process and regeneration technology process is characterized in that its inside has one or more heaters to be placed in the inner sleeve, inner sleeve from top to bottom merogenesis places on the bottom of drier; On the inner sleeve surface between egress filtering device and the drier bottom, has loose structure, loose structure and egress filtering device and adsorbent bed communicating; Drier top is provided with inlet filter, and the bottom is provided with the egress filtering device, is provided with adsorbent bed between two filter courses.
Drier is characterised in that its bottom is provided with the dry gas outlet, and it communicates with the inner sleeve lower end; Be covered with regeneration gas inlet and humid gas inlet on the drier, the regeneration gas inlet communicates with inner sleeve, and the humid gas inlet communicates with inlet filter, and it also can make regeneration technology process exhaust outlet; A plurality of visors are housed on the housing.
The feature of drier is that also inlet filter and egress filtering device are constituted by porous plate, silk screen and microwell plate, the silk screen hole is 25～200 orders, made by stainless steel wire or copper wire, microwell plate is made by plastics with micropore or stainless steel, and the aperture of micropore is 30～200 μ m.
Special-purpose multi-grade oil water filter of the present invention is characterized in that its inside is made of silk screen filter layer and microporous filter tube combination of filters; The bottom is provided with secondary or multistage silk screen filter layer in the housing, and top is provided with one or more microporous filter tube filter; Air inlet pipe is passed housing by the oil and water filters middle part and is connected with one-level silk screen filter layer.
Oil and water filters is characterised in that wire gauzee filter made by stainless steel wire or plastics silk or glass fibre or felt; The chimney filter of microporous filter tube filter is made by the plastics or the chemical synthetic fiber of band micropore, and the aperture of micropore is 0.2～150 μ m.
The multistage dust filter unit of special use of the present invention is characterized in that it is made of secondary or multistage microporous filter tube combination of filters; Air inlet pipe is upward through housing by the dust filter unit bottom vertical, and the air inlet pipe upper end is positioned at the chimney filter upper position; Separated by dividing plate between the microporous filter tube filter of adjacent two levels, and have air inlet pipe to communicate, the upper end of air inlet pipe is positioned at the chimney filter upper position.
Multistage dust filter unit is characterized in that its chimney filter made by the plastics with micropore or metal or pottery magnetic or glass, perhaps makes with glass fibre or chemical synthetic fiber, and the aperture of micropore is 0.2～150 μ m.
The technical parameter of low-grade fever regeneration compressed air drying method and device thereof is in the body of the present invention:
Pressure leak source-70～-20 ℃
Dustiness 0.1～5mg/m
3
Oil content 0.01～1mg/m
3
Precision 0.01～5 μ m
The pressure scope of application (gauge pressure) 0.6～4.0MPa
20～40 ℃ of intake air temperature
Table 1 is the comparison of the present invention and heatless regeneration method and external thermal regeneration method.
Table 2 is each technical process time in one-period of the present invention.
The present invention compares with heatless regeneration method, external thermal regeneration method, the interior thermal regeneration method of body and external little thermal regeneration method, has following advantage:
1. the work period is 4 hours, has prolonged the working time, reduces valve wearing and tearing number of times, has utilized the principle of transformation absorption and alternating temperature absorption again,
2. utilize the principle of airflow convection heat transfer and conduction heat transfer, adopt heating regeneration gas in the drier, regeneration temperature is 120～150 ℃, and electric heater capacity reduces more than 1/3rd,
3. regeneration temperature is low, needs the dry gas scale of construction few during cold blowing, and the cold blowing time significantly reduces, and adsorbent also is difficult for broken,
4. during pressurising, send into the dry place pressurising up and down simultaneously by drier, the adsorbent on adsorbent bed does not float, be difficult for broken,
5. the quality through dry gas behind multi-grade oil water filter and the multistage dust filter unit is improved,
6. directly send to use by the outlet of drier bottom by adsorbent bed dry gas, discharge without inner sleeve and electric heater drying device top, avoided in inner sleeve by the dust secondary pollution, the Compressed Gas dew point is low, and quality is good,
7. the air mass flow scope is big, is 6～400NM
3/ Min is specially adapted to big flow,
8. in the whole process flow, valve quantity is few, and the inner sleeve merogenesis is installed, chimney filter, heater convenient disassembly, and therefore easy and simple to handle, maintenance capacity is few.
Drier of the present invention compared with prior art has the following advantages:
The air-flow of 1. working when regenerating is reverse flow, and air current composition is reasonable, causes the adsorbents adsorb after the regeneration effective, and dew point is low, and gaseous mass is good,
2. interior loading port and two filters of outlet, air-flow is evenly distributed, and is suitable for big flow, is difficult for taking away the adsorbent powder dust particle again,
3. adopt efficient electric heater, in deflection plate is arranged, the dismounting electrothermal tube is convenient,
4. the inner sleeve merogenesis is installed, and it is convenient to dismantle, overhaul,
5. differing heights is equipped with visor and discolour silica gel, by the adsorbent suction situation on the bed directly perceived of the visor on the housing,
6. regeneration air stream is walked from bottom to top, and the bottom adsorbent reactivation is complete, and the dry air quality is good.
Multi-grade oil water filter good effect of the present invention:
1. resistance is little, and humid air enters from the housing middle part, downwards by one-level silk screen filter layer, water on the silk screen can drip by nature, humid air then upwards by secondary and three grades of silk screen filter layers, so silk screen to catch fogbound power little, gas-liquid separation can be removed the drop more than the 5 μ m
2. good separating effect, the filter core that humid air is made by the hydrophobic and oil repellent material, water smoke and mist of oil coarse are filtered, and the live load of drier is alleviated greatly, have prolonged the service life of adsorbent.
The multistage dust filter unit good effect of the present invention:
1. dust-filtering precision height, precision can reach≤0.01 μ m, finished product dry decontamination gas dustiness＜1mg/m
3,
2. the air inlet pipe upper end makes chimney filter be difficult for stopping up at the chimney filter upper position, and big grain dust filters at the one-level chimney filter, and grain dust is filtered by secondary or multistage chimney filter.
Accompanying drawing title of the present invention is as follows:
Fig. 1. heatless regeneration compressed air drying method fundamental diagram
Fig. 2. heatless regeneration method, the work of A tower, the regeneration of B tower
Fig. 3. heatless regeneration method, the work of A tower, the pressurising of B tower
Fig. 4. heatless regeneration method, the regeneration of A tower, the work of B tower
Fig. 5. heatless regeneration method, the pressurising of A tower, the work of B tower
Fig. 6. external thermal regeneration compressed air drier
Fig. 7. thermal regeneration compressed air drier in the body
Fig. 8. external low-grade fever regeneration compressed air drier
Fig. 9. existing compressed air cleaner
Figure 10. the view of Fig. 9
Figure 11. existing gas-water separation equipment
Figure 12. the view of Figure 11
Figure 13. low-grade fever regeneration compressed air drying purifier process chart in the body of the present invention
Figure 14. multistage dust filter unit of the present invention
Figure 15. multi-grade oil water filter of the present invention
Figure 16. low-grade fever regenerative dryer configuration in the body of the present invention
Mark title in the accompanying drawing of the present invention is as follows:
1. moisture enters the mouth, 2. drier A, 3. dry gas outlet, 4. check-valves, 5. choke valve, 6. drier B, 7. silencer, 8. straight-through cock, 9. cross valve, 10. moisture inlet valve, 11. dry gas outlet valve, 12. drier A, 13. outlet cross valve, 14. drier B, 15. regeneration gas inlet valve, 16. electric heater, 17. Roots blower, 18. inlet cross valves, 19. cross valves, 20. electric heater, 21. internal filter, 22. drier B, 23. screen packs, 24. unload the adsorbent mouth, 25. silencer, 26. drier A, 27. electric heaters, 28. check-valves, 29. drier A, 30. Pneumatic butterfly valves, 31. pneumatic stopping valves, 32. silencer, 33. pneumatic stopping valve, 34. silencers, 35. moistures inlet, 36. silencer, 37. pneumatic stopping valve, 38. silencers, 39. pneumatic stopping valves, 40. Pneumatic butterfly valve, 41. filter, 42. manual ball valves, 43. restricting orifices, 44. gate valve, 45. electric heater, 46. check-valves, 47. check-valves, 48. check-valves, 49. check-valves, 50. clean gas outlets, 51. filter cores, 52. housing, 53. sewage draining exit, 54. ash-laden gases inlet, 55. remove the aqueous vapor outlet, 56. contain the aqueous vapor inlet, 57. sewage draining exit, 58. housings, 59. cyclones, 60. bearing support, 61. the silk screen filter layer, 62. loam cakes, 63. drier A, 64. check-valves, 65. the Pneumatic four-way valve, 66. pressure balance pressurising lines, 67. pneumatic stopping valves, 68. silencer, 69. drier B, 70. multistage dust filter units, the outlet of 71. dry decontamination gas, 72. sampling of dry decontamination gas and pressure tap, 73. pneumatic stopping valve, sampling of 74. dry gas and pressure tap, 75. pneumatic stopping valves, 76. choke valve, 77. check-valves, 78. sewage draining exits, 79. oil-containing aqueous vapors inlet, 80. import sampling and pressure tap, 81. the multi-grade oil water filter, 82. outlet sampling and pressure taps, 83. oil removing moisture outlet, 84. lower house, 85. pipe in the air inlet, 86. one-level chimney filters, 87. secondary chimney filters, 88. back blow port, 89. the outlet of dry decontamination gas, 90. sampling and pressure taps, 91. upper shells, 92. dividing plate, 93. the secondary dust-exhausting port, 94. flanges, 95. dividing plates, 96. sampling and pressure tap, 97. the dry gas inlet, 98. one-level dust-exhausting ports, 99. sewage draining exits, 100. moisture inlet, 101. sampling and pressure tap, 102. chimney filters, 103. sampling and pressure taps, 104. oil removing moisture outlet, 105. back blow port, 106. three grades of silk screen filter layers, 107. one-level silk screen filter layers, 108. secondary silk screen filter layer, 109. housing, the outlet of 110. dry gas, 111 egress filtering devices, 112. housing, 113. bearing support, 114. inner sleeves, 115. electric heaters, 116. inlet filter, 117. loam cake, 118. electric heater insulation seal devices, 119. regeneration gases inlet, 120. moisture inlet or regeneration gas outlet, 121. the filled with adsorbent mouth, 122. top visors, 123. middle part visors, 124. the bottom visor, 125. unload the adsorbent mouth.
Below further specify feature of the present invention with accompanying drawing, will be understood that the present invention is not subjected to the restriction of following institute narrating content.
Figure 13 is the process chart of low-grade fever regeneration compressed air drying purification method and device in the body of the present invention.The present invention has utilized transformation absorption and two basic principles of thermal regeneration, adopt hocket adsorption dry technology and resolve the regeneration technology process of two driers, work period is 2～4 hours, wherein adsorption drying process is 1～2 hour, resolve regenerative process and comprise that blast-cold is stamped into 1～2 hour, can realize the Compressed Gas of dry decontamination without interruption.
Whole process flow comprises drier, multi-grade oil water filter, multistage dust filter unit, a cross valve, check-valves, stop valve, equipment and parts such as choke valve and silencer.
Technological process is as follows:
1. adsorption dry technology, moisture enters the multi-grade oil water filter by oil-containing water air intake 79, earlier from top to bottom by one-level silk screen filter layer, a large amount of profits are removed, and drip downwards along silk screen, moisture then be upward through multistage silk screen filter layer, further remove You Heshui, by multistage microporous filter tube filter, microporous filter tube uses hates the material of oily hydrophobic to make, and removes the contained You Heshui of moisture then.
Gas is by de-oiling moisture outlet 83, deliver to drier A63 through Pneumatic four-way valve 65, loam cake 117 by drier A63 enters, filter by inlet filter 116 earlier, then from the top down by adsorbent bed and egress filtering device 111, pass the loose structure of inner sleeve 114 bottoms, send drier A by dry gas outlet 110 downwards, deliver to multistage dust filter unit 70 through check-valves 77.
Dry gas is made progress along pipe in the air inlet 85 by the dry gas inlet 97 of multistage dust filter unit 70 bottoms, one-level chimney filter 86 tops of one-level microporous filter tube filter are delivered in the hole of passing pipe 85 upper faces in the air inlet, the top that dry gas is after filtering delivered to the secondary chimney filter 87 of secondary microporous filter tube filter by pipe 85 in the air inlet, the dry gas that is filtered after the dedusting is sent to use by dry decontamination gas outlet 89.
2. parsing regeneration technology, part dry gas process pneumatic stopping valve from drier A63, perhaps the dry decontamination gas from multistage dust filter unit 70 passes through pneumatic stopping valve 75 and choke valve 76, carry out reduced pressure treatment, enter the inner sleeve 114 of drier B69 again through check-valves 64, dry gas is heated to 120～150 ℃ by the electric heater 115 in the inner sleeve 114, thermal current arrives the bottom of drier B69 from top to bottom along inner sleeve 114, pass loose structure, transfer again upwards by egress filtering device 111, adsorbent bed and inlet filter 116, regeneration gas contains the moisture content that adsorbent is resolved, discharge drier B69 from regeneration gas outlet 120, by Pneumatic four-way valve 65, pneumatic stopping valve 67 and silencer 68 are discharged.
When the adsorbent bed upper temp of drier B69 is 60～70 ℃, heater 115 outages in the inner sleeve, cold dry gas or dry decontamination gas are through pneumatic stopping valve 75 and choke valve 76, check-valves 64 and inner sleeve enter drier B69 bottom, pass loose structure more upwards by egress filtering device 111, adsorbent bed and inlet filter 116, deliver to pneumatic stopping valve 67 and silencer 68 discharges by regeneration gas outlet 120 at last.Adsorbent temperature is≤50 ℃ when adsorbent bed top, stops the blast-cold of dry gas or dry decontamination gas, closes pneumatic stopping valve 67, carries out the pressurising process.
During drier B69 pressurising, send into gas from top and bottom simultaneously, promptly enter the top of drier B69 through pneumatic stopping valve 67 and enter adsorbent bed from the bottom to top via inner sleeve 114, egress filtering device 111 from the dry gas of choke valve 76 from the moisture of drier A63.
After pressurising was finished, two driers switched, and drier B69 can carry out adsorption drying process, and drier A63 resolves regenerative process thereupon.
Figure 16 is low-grade fever regenerative dryer structure in the special-purpose body of the present invention.Drier inside comprises inlet filter 116, egress filtering device 111 and adsorbent bed, inner sleeve 114 and electric heater 115, top loam cake 117 is provided with regeneration gas inlet 119 and the moisture inlet or the outlet 120 of giving vent to anger again, the bottom is provided with dry air outlet 110, top visor 122 is arranged on the housing, middle part visor 123, bottom visor 124.
Figure 15 is a multi-grade oil water filter of the present invention, its inside is provided with one-level silk screen filter layer 107, the chimney filter 102 of 108, three grades of silk screen filter layer 106 of secondary silk screen filter layer and microporous filter tube filter, the top is provided with oil removing moisture outlet 104 and back blow port 105, and the bottom is provided with sewage draining exit 99.
Figure 14 is a multistage dust filter unit of the present invention, air inlet pipe 85 in its housing, one-level chimney filter 86, secondary chimney filter 87, dividing plate 92, dividing plate 95, case top is provided with dry decontamination gas outlet 89, back blow port 88, and the housing middle part is provided with secondary dust-exhausting port 93, housing bottom is provided with dry gas inlet 97 and one-level dust-exhausting port 98, and last lower house is connected by flange 94.
Embodiment 1
At flow of the present invention is 200NM
3In the body of/Min in the low-grade fever regeneration air drying device, it is 1MPa(A that the compressed air that is saturation state enters multi-grade oil water filter 81 compressed-air actuated pressure), temperature is 30 ℃, oil content is 106.7mg/m
3Behind multi-grade oil water filter 81, the air oil content is 0.535mg/m
3, filtered more than 95% greater than the liquid particles of 5 μ m.Then, the compressed air that is saturation state behind the deoiling, dewatering enters drier A63 by cross valve 65, becomes pressure leak source by check-valves 77 again and is-40 ℃ dry air, delivers to multistage dust filter unit 70, become the dry decontamination air behind dust removal and filtration, its dustiness is 1mg/m
3, maximum particle diameter≤1 μ m, purification efficiency is 99.99%.The work adsorption time of drier A63 is 1.5 hours.
Send 5～8% gas from dry decontamination gas outlet 71 as regeneration gas, by pneumatic stopping valve 75, deliver to drier B69 through choke valve 76 and check-valves 64 again, carry out low-grade fever regeneration, this process is 1.5 hours, when adsorbent bed upper temp is 60～70 ℃, stop the electric heater heating, 1 hour heat time heating time, regeneration air stream continues to carry out the blast-cold process along former heating process airflow direction, blast-cold to bed upper temp is 40～50 ℃ stops 25 minutes blast-cold time.Then pneumatic stopping valve 67 is closed and carry out pressurising, make drier A and B pressure reach balance, pressurising took time 5 minutes.Promptly finish one-period and be 3 hours absorption regeneration process.Half period is 1.5 hours, and two drier alternations in promptly 1.5 hours, regenerative process are once.
Table 1.
Claims (9)
1, a kind of compressed air drying purification method, comprise the absorbing process of adsorbents adsorb Compressed Gas institute water content and the regeneration technology that adsorbent is resolved, it is characterized in that Compressed Gas is introduced into that the multi-grade oil water filter removes institute's oil-containing and water carries out absorbing process again, dry air entered multistage dust filter unit again and removes contained powder dust particle after absorbing process was finished; Compressed Gas behind the de-oiled water is entered in the drier by top, enters adsorbent bedly downwards through inlet filter, again through the egress filtering device, is discharged by the outlet of drier bottom dry gas; When adsorbent is resolved, Compressed Gas after the dry or drying dedusting is through reduced pressure treatment, enter in the heater inner sleeve by drier top, by the little heating of the heater in the inner sleeve, 120～150 ℃ of heating-up temperatures, thermal current after the heating enters drier outlet at bottom filter from top to bottom in inner sleeve, then upwards through the adsorbent bed adsorbent desorption process that carries out
2, a kind of special-purpose drier according to the described compressed air drying purification method of claim 1, absorbing process and regeneration technology process can hocket, it is characterized in that its inside has one or more heaters to be placed in the inner sleeve, inner sleeve from top to bottom merogenesis places on the bottom of drier; The surface of the inner sleeve between egress filtering device and drier bottom has loose structure, loose structure and egress filtering device and adsorbent bed communicating; Drier top is provided with inlet filter, and the bottom is provided with the egress filtering device, be provided with between two filters adsorbent bed,
3, drier according to claim 2 is characterized in that its bottom is provided with the dry gas outlet, and it communicates with the inner sleeve lower end; Be covered with regeneration gas inlet and humid gas inlet on the drier, the regeneration gas inlet communicates with inner sleeve, and the humid air inlet communicates with inlet filter, also can make the regenerative process exhaust outlet of regeneration technology; A plurality of visors are housed on the housing,
4, drier according to claim 2, it is characterized in that inlet filter and egress filtering device are constituted by porous plate, silk screen and microwell plate, the silk screen hole is 25～200 orders, make by stainless steel wire or copper wire, microwell plate is made by plastics with micropore or stainless steel, the aperture of micropore is 30～200 μ m
5, a kind of special-purpose multi-grade oil water filter according to the described compressed air drying purification method of claim 1 is characterized in that its inside is made of silk screen filter layer and microporous filter tube combination of filters; The bottom is provided with secondary or multistage silk screen filter layer in the housing, and top is provided with one or more microporous filter tube filter; Air inlet pipe is passed housing by the housing middle part and is connected with one-level silk screen filter layer,
6, multi-grade oil water filter according to claim 5 is characterized in that oil-containing water compressed air is entered in the oil and water filters by air inlet pipe, passes through one-level silk screen filter layer from top to bottom, and then upwards through multistage silk screen filter layer,
7, multi-grade oil water filter according to claim 5 is characterized in that the silk screen filter layer made by stainless steel wire or plastics silk or glass fibre or felt; The chimney filter of microporous filter tube filter is made by the plastics or the chemical synthetic fiber of band micropore, and micropore size is 5～150 μ m,
8, a kind of special-purpose multistage dust filter unit according to the described compressed air drying purification method of claim 1 is characterized in that it is made of secondary or multistage microporous filter tube combination of filters; Air inlet pipe is upward through housing by the dust filter unit bottom vertical, and the air inlet pipe upper end is positioned at the chimney filter upper position; Separate by dividing plate between the microporous filter tube filter of adjacent two levels; And have air inlet pipe to communicate, the air inlet pipe upper end is positioned at the chimney filter upper position,
9, multistage dust filter unit according to claim 8 is characterized in that its chimney filter made by the plastics with micropore or metal or pottery magnetic or glass, perhaps makes with glass fibre or chemical synthetic fiber, and the aperture of micropore is 0.2～150 μ m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN94103379A CN1036177C (en) | 1994-04-04 | 1994-04-04 | Method and apparatus for drying and purifying gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN94103379A CN1036177C (en) | 1994-04-04 | 1994-04-04 | Method and apparatus for drying and purifying gas |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1091993A true CN1091993A (en) | 1994-09-14 |
| CN1036177C CN1036177C (en) | 1997-10-22 |
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ID=5031036
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN94103379A Expired - Lifetime CN1036177C (en) | 1994-04-04 | 1994-04-04 | Method and apparatus for drying and purifying gas |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1036177C (en) |
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| CN101000206B (en) * | 2006-01-10 | 2010-04-14 | 高志凯 | Compression gas afterheat regeneration drying process without gas consumption |
| CN101175549B (en) * | 2005-05-16 | 2011-02-02 | 沃布科汽车（英国）有限公司 | Air dryer cartridge |
| CN104332083A (en) * | 2014-10-31 | 2015-02-04 | 徐州工程学院 | Adsorbent adsorption-regeneration presentation device and presentation method thereof |
| CN104888540A (en) * | 2015-05-04 | 2015-09-09 | 广西南宁双阳科技有限公司 | Gas source purification treatment system and method |
| CN105148689A (en) * | 2015-08-24 | 2015-12-16 | 王新建 | Adsorption tower for drying compressed air |
| CN108568197A (en) * | 2018-07-03 | 2018-09-25 | 重庆鲍斯可燃气工程有限公司 | One-stop compressed air purification system |
| CN108579367A (en) * | 2018-07-03 | 2018-09-28 | 重庆鲍斯可燃气工程有限公司 | Low energy consumption environment protection compressed air purification system |
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| CN115518497A (en) * | 2022-11-01 | 2022-12-27 | 杭州嘉隆气体设备有限公司 | Blast regeneration compressed air dryer and use method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63107725A (en) * | 1986-10-27 | 1988-05-12 | Orion Mach Co Ltd | Method and apparatus for dehumidifying and drying compressed air |
| JPH04265112A (en) * | 1991-02-20 | 1992-09-21 | Ckd Corp | Pressure swinging separation of gaseous mixture and its device |
| CN2139850Y (en) * | 1992-10-13 | 1993-08-11 | 铁道部四方车辆研究所 | Air desiccator |
| CN2141320Y (en) * | 1992-10-20 | 1993-09-01 | 杭州汉业气源净化设备有限公司 | Dryer for purifying compressed air |
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1994
- 1994-04-04 CN CN94103379A patent/CN1036177C/en not_active Expired - Lifetime
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| CN101175549B (en) * | 2005-05-16 | 2011-02-02 | 沃布科汽车（英国）有限公司 | Air dryer cartridge |
| CN101000206B (en) * | 2006-01-10 | 2010-04-14 | 高志凯 | Compression gas afterheat regeneration drying process without gas consumption |
| CN104332083A (en) * | 2014-10-31 | 2015-02-04 | 徐州工程学院 | Adsorbent adsorption-regeneration presentation device and presentation method thereof |
| CN104888540A (en) * | 2015-05-04 | 2015-09-09 | 广西南宁双阳科技有限公司 | Gas source purification treatment system and method |
| CN105148689A (en) * | 2015-08-24 | 2015-12-16 | 王新建 | Adsorption tower for drying compressed air |
| CN110665341A (en) * | 2018-07-02 | 2020-01-10 | 重庆鲍斯可燃气工程有限公司 | Energy-saving adsorption type drying tower for purifying compressed air |
| CN108568197A (en) * | 2018-07-03 | 2018-09-25 | 重庆鲍斯可燃气工程有限公司 | One-stop compressed air purification system |
| CN108579367A (en) * | 2018-07-03 | 2018-09-28 | 重庆鲍斯可燃气工程有限公司 | Low energy consumption environment protection compressed air purification system |
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| Publication number | Publication date |
|---|---|
| CN1036177C (en) | 1997-10-22 |
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