CN2141320Y - Dryer for purifying compressed air - Google Patents
Dryer for purifying compressed air Download PDFInfo
- Publication number
- CN2141320Y CN2141320Y CN 92238580 CN92238580U CN2141320Y CN 2141320 Y CN2141320 Y CN 2141320Y CN 92238580 CN92238580 CN 92238580 CN 92238580 U CN92238580 U CN 92238580U CN 2141320 Y CN2141320 Y CN 2141320Y
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- compressed air
- air
- drier
- dryer
- absorption drier
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Abstract
The utility model provides a dryer for purifying compressed air. The utility model is mainly characterized in that the front part of the air inlet of an adsorption type dryer is connected with a 0.01 mu precise filter and a freezing type drier, one side of the air outlet of the adsorption type dryer is connected with a side flow pipe, a waste heat heater is arranged between the compressor and the condenser of a refrigerator, and the side flow pipe passing through the waste heat heater and a regenerating flow regulating valve is connected with the check valve of the adsorption type dryer. The dryer of the utility model can process the harsh air of the compressed air into pure compressed air with high dryness, having low energy consumption.
Description
The utility model relates to gas drier, particularly the purification of compressed air drying device.
Compressed air because safe in utilization, control is convenient, cost is lower, thereby is used as power source widely in fields such as pneumatic means, application, winding-up, conveyings.Compressed air contains impurity such as moisture that volume exists with water vapour, droplet form and dust from atmosphere, air itself, through again machine oil that contained deterioration behind the air compressor more, therefore be a kind of inferior thick gas by the compressed air that air compressor provided, can not make the power source of senior spraying, chemical fibre dyeing, the contour technological requirement of pneumatic instrument.Compressed-air actuated purification is exactly to remove impurity such as moisture in the thick gas of compressed air, dust mist of oil.Adopt absorption drier to come purification of compressed air in the prior art, it mainly uses with the molecular sieve of aluminosilicate material the powerful suction-operated of moisture, impurity is reached the purification purpose, but when moisture, impurity take the cavity of molecular sieve, this catharsis just reduces greatly, again change that molecular screen material not only needs to expend time in, expense, and influence the continuity of work, therefore adopt the way that molecular screen material is carried out the cyclic regeneration activation to solve.Absorption drier is equipped with two absorbing cylinders that molecular sieve is housed, utilize the high aridity compressed air of part of absorption drier output that molecular sieve is carried out regeneration activating, way be the outlet at absorption drier connect a by-pass flow pipe with the high aridity compressed air of part by the regeneration adjustable valve, check-valves enters absorbing cylinder molecular sieve is regenerated, activation, two absorbing cylinders are switched by solenoid control, be used alternatingly, during molecular sieve work in absorbing cylinder, the molecular sieve in another absorbing cylinder is reproduced, activation can guarantee that absorption drier can the continuous operation (see figure 1).Absorption drier is the purification efficiency height not only, and easy to use.But the compressed-air actuated quantity of high aridity that consumes for regenerating molecular sieve, activation is also very big, account for the absorption drier output high aridity purification of compressed air quantity 15%, the thick gas of compressed air that is to say the air compressor machine output has only 85% purification of compressed air yield after absorption drier purifies.Air engine and the thick gas disposal amount of compressed air with 200HP are 20Nm
3The absorption drier of/min coupling is used and is example, year usage charges reach 12.5 ten thousand yuan, the expense of regeneration activating molecular sieve is up to 50,000 yuan, and expended a large amount of energy.
The purpose of this utility model will provide a kind of improved purification of compressed air drying device exactly, and this device not only can be produced the pure compressed air of high aridity, and energy consumption is lower.
Task of the present utility model is finished as follows:
The purification of compressed air drying device, has absorption drier, its characteristics are that the air inlet front sequence of absorption drier is connected with 0.01 μ accurate filter, by refrigeration machine, heat exchanger, air inlet, the freezing type drier that moisture trap and automatic water trap are combined into, the escape pipe of described absorption drier passes through that the side in the gas outlet is connected with the by-pass flow pipe behind the heat exchanger, be provided with the used heat warmer between compressor in the refrigeration machine and the condenser, a section of described by-pass flow pipe passes behind used heat warmer and the regeneration adjustable valve with check-valves in the absorption drier and links to each other.
Can be connected with filter on the escape pipe of the utility model drying machine.
The thick gas of high temperature compressed air that air compressor machine produces enters the pure compressed air of low temperature that heat exchanger rear section heat is dried in the device escape pipe by the air inlet of drying device and takes away, the thick gas of compressed air enters peripheral work of evaporimeter of refrigeration machine and further lowers the temperature, because the dew-point temperature of refrigerant is 1 °～2 ℃ in the refrigeration machine, so the condensation vapor that exists with gaseous form in the thick gas of compressed air becomes water droplet and discharges through moisture trap and automatic water trap.Compressed air is when 0.01 μ accurate filter, and impurity such as moisture that exists with the droplet form in the thick gas and mist of oil are eliminated.After compressed air enters absorbing cylinder, because the dew-point temperature of molecular sieve reaches-40 °～-70 ℃ in the absorbing cylinder, therefore be that oil content is 0.01PPm by escape pipe output, dustiness is less than the pure compressed air of the high aridity of 0.01 μ, can be used as the pneumatic power source that senior spraying, the contour technological requirement of pneumatic instrument are used fully.Compressed air through freezing type drier and the output of 0.01 μ accurate filter has been removed impurity such as the moisture more than 90%, mist of oil, has therefore alleviated the operating pressure of molecular sieve in the absorption drier greatly.The pure compressed-air actuated consumption of high aridity that has not only prolonged the working life of molecular sieve but also be used for the regeneration activating molecular sieve also significantly reduces.According to test, mating thick gas disposal amount with the air compressor machine of 200HP is 20Nm
3It is 20Nm that the absorption drier of/min, the air compressor machine of 200HP mate thick gas disposal amount
3The utility model drying device of/min is opposed than test: last group of pure compressed-air actuated consumption of high aridity that is used for regeneration activating is 8～10 times of the one group of consumption in back.Then the power of the freezing type drier that increases in a group has only 5HP, and the power of therefore comprehensive post consumption has reduced 20HP, and its energy-saving effect is fairly obvious.Last group year usage charges be 125000 yuan, one group the year usage charges in back are 40000 yuan, its economic benefit also is considerable.
Below with reference to accompanying drawing the utility model is described in further detail.
Fig. 1 is the schematic flow sheet of known absorption drier
Fig. 2 is the schematic flow sheet of known freezing type drier
Fig. 3 is the flow process organigram of the utility model drying device
Consult Fig. 1, absorption drier is by air inlet 1, escape pipe 3, and absorbing cylinder 11,12, the magnetic valve 13 in charged source, regeneration adjustable valve 8, check-valves 9 is formed, and is equipped with the molecular sieve of aluminosilicate material in the absorbing cylinder 11,12.The pressure leak source of absorption drier is-40 °～-70 ℃, compressed air that therefore can the high aridity of output.Consult Fig. 2, the refrigeration machine that known freezing type drier is made up of evaporimeter 14, compressor 15, condenser 16, control valve 17, heat exchanger 18, air inlet 19, moisture trap 20, automatic water trap 21 is formed.Because the pressure leak source of refrigerant is 1 °～2 ℃ so can only separates out the steam that exists with gaseous form in the thick gas of compressed air in the refrigeration machine.Therefore can not remove the moisture that exists with liquid droplet form in the thick gas, the compressed air that the freezing type drier that uses with the air compressor coupling can not the high aridity of output.But the power that freezing type drier consumes is little, with the power of air compressor be 200HP and its coupling, slightly the gas disposal amount is 20Nm
3The freezing type drier power of/min has only 5HP, thus freezing type drier to be used for removing the steam that the thick gas of compressed air exists with gaseous form be that very economical is worthwhile.The air inlet 1 of consulting Fig. 1～Fig. 3 absorption drier 0.01 μ accurate filter 2 and the freezing type drier that be linked in sequence.Be connected with the filter 10 that can filter the molecular sieve fragment on the escape pipe 3 of absorption drier, escape pipe 3 makes the less nest of tubes of diameter into after entering heat exchanger 18, can improve rate of heat exchange.One side of gas outlet 22 is connected with by-pass flow pipe 6, is provided with used heat warmer 7 between compressor 15 in the refrigeration machine and the condenser 16, and by-pass flow pipe 6 links to each other with check-valves 9 behind the adjustable valve 8 with regeneration through used heat warmer 7.
When drying device of the present utility model uses, air inlet 19 is linked to each other with the air outside compressor, gas outlet 22 links to each other with device of air with the outside, and cold medium compressor 15 is connected power supply respectively with magnetic valve 13.After the thick gas of the compressed air of high temperature enters heat exchanger 18 by air inlet 19, the part heat is taken away by the pure compressed air of low temperature drying in the escape pipe 3 in the thick gas, when thick gas enters evaporimeter 14 peripheries of refrigeration machine, because the dew-point temperature of refrigerant reaches 1 °～2 ℃, heat in the therefore thick gas is siphoned away in a large number, temperature descends rapidly, and the condensation vapor in the thick gas becomes water droplet, through moisture trap 20, automatic water trap 21 moisture that folds is discharged.Compressed air is during through 0.01 μ accurate filter 2, and impurity such as moisture that exists with the droplet form in the thick gas and mist of oil are eliminated.Compressed air is through the absorbing cylinder 11 or 12 of absorption drier, carry out last purification by the molecular sieve in the absorbing cylinder, by escape pipe 3 outputs is that oil content is 0.01PPM, dustiness is less than the pure compressed air of the high aridity of low temperature of 0.01 μ, after heat exchanger 18, gas outlet 22 outputs.The regeneration of molecular sieve, activation is carried out by the high aridity compressed air of part of the utility model drying device output, but the aging powder that comes off of the high aridity compressed air process of low temperature filter 10 elimination molecular sieves by escape pipe 3 outputs, make compressed air keep pure, compressed air in the escape pipe 3 has absorbed temperature rising behind the heat of the thick gas of high temperature outside the pipe in heat exchanger 18, after the pure compressed air of the high aridity of a part enters used heat warmer 7 by by-pass flow pipe 6, liberated heat when having absorbed the refrigerant condensation outward of by-pass flow pipe is so further rise to 60 °～70 ℃ as the compressed air temperature of regenerating molecular sieve activation.Compressed air through regeneration adjustable valve 8, check-valves 9 enters absorbing cylinder 11 or 12 pairs of molecular sieves are regenerated, activated.Compressed-air actuated air inflow is controlled by regeneration adjustable valve 8, and the regeneration of molecular sieve in the absorbing cylinder 11 and 12, activation hocket, and this work is also carried out by magnetic valve 13, automaticallyes switch.During absorbing cylinder 11 work, the molecular sieve in the absorbing cylinder 12 is reproduced, activates, and during absorbing cylinder 12 work, then the molecular sieve in the absorbing cylinder 11 is reproduced, activates.As the compressed air temperature height, aridity height of regeneration, activation then its consumption with regard to corresponding minimizing, so the pure compressed air of the high aridity of low temperature is to utilize used heat to improve compressed-air actuated temperature for twice through heat exchanger 18, used heat warmer 7, thereby reach the gas consumption that reduces the regenerating molecular sieve activation, the purpose of energy efficient, after tested, this measure energy consumption of saving accounts for the utility model drying device total energy-conservation 1/10th.
Claims (2)
1, a kind of purification of compressed air drying device, has absorption drier, air inlet (1) front sequence that it is characterized in that absorption drier is connected with 0.01 μ accurate filter (2), by refrigeration machine, heat exchanger (18), air inlet (19), moisture trap (20), the freezing type drier that automatic water trap (21) is formed, the escape pipe of absorption drier (3) passes through heat exchanger (18), and afterwards one side of (22) is connected with by-pass flow pipe (6) in the gas outlet, be provided with used heat warmer (7) between compressor in the refrigeration machine (15) and the condenser (16), one section of by-pass flow pipe (6) is passed used heat warmer (7) check-valves (9) back with regeneration adjustable valve (8) and in the absorption drier and links to each other.
2, drying device according to claim 1 is characterized in that can being connected with filter (10) on the escape pipe (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92238580 CN2141320Y (en) | 1992-10-20 | 1992-10-20 | Dryer for purifying compressed air |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92238580 CN2141320Y (en) | 1992-10-20 | 1992-10-20 | Dryer for purifying compressed air |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2141320Y true CN2141320Y (en) | 1993-09-01 |
Family
ID=33779538
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 92238580 Expired - Lifetime CN2141320Y (en) | 1992-10-20 | 1992-10-20 | Dryer for purifying compressed air |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2141320Y (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1036177C (en) * | 1994-04-04 | 1997-10-22 | 中国石化北京设计院 | Method and apparatus for drying and purifying gas |
| CN102166466A (en) * | 2011-02-27 | 2011-08-31 | 无锡市新兴仪表有限公司 | Air purifier |
| CN102631813A (en) * | 2012-04-26 | 2012-08-15 | 中国人民解放军军事医学科学院卫生装备研究所 | Renewable gas particulate filtering unit |
| CN104242069A (en) * | 2014-09-17 | 2014-12-24 | 国家电网公司 | Dehumidification device for electrical cabinet |
| CN104528654A (en) * | 2014-10-08 | 2015-04-22 | 吉林市卓欣康泰医疗科技有限公司 | Medical central oxygen-generating air purification system and operation method thereof |
| CN104874504A (en) * | 2015-06-06 | 2015-09-02 | 合肥铭锋模具铸造有限公司 | Spraying line |
| CN105688617A (en) * | 2016-04-11 | 2016-06-22 | 珠海市臻的科技有限公司 | Front-end refrigerating and regenerated gas recycling and heating system for adsorbing drying machine |
| CN105879593A (en) * | 2016-04-11 | 2016-08-24 | 珠海市臻的科技有限公司 | Front-end refrigerating and regenerated gas recovering and heating system for adsorption type dryer |
| CN106377981A (en) * | 2016-11-11 | 2017-02-08 | 上海大众祥源动力供应有限公司 | Adsorption type drying device with high operation reliability |
| CN110772935A (en) * | 2018-07-31 | 2020-02-11 | 马尼托沃克起重机集团（法国）公司 | Compressed air drying device |
-
1992
- 1992-10-20 CN CN 92238580 patent/CN2141320Y/en not_active Expired - Lifetime
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1036177C (en) * | 1994-04-04 | 1997-10-22 | 中国石化北京设计院 | Method and apparatus for drying and purifying gas |
| CN102166466A (en) * | 2011-02-27 | 2011-08-31 | 无锡市新兴仪表有限公司 | Air purifier |
| CN102631813A (en) * | 2012-04-26 | 2012-08-15 | 中国人民解放军军事医学科学院卫生装备研究所 | Renewable gas particulate filtering unit |
| CN104242069A (en) * | 2014-09-17 | 2014-12-24 | 国家电网公司 | Dehumidification device for electrical cabinet |
| CN104528654A (en) * | 2014-10-08 | 2015-04-22 | 吉林市卓欣康泰医疗科技有限公司 | Medical central oxygen-generating air purification system and operation method thereof |
| CN104874504A (en) * | 2015-06-06 | 2015-09-02 | 合肥铭锋模具铸造有限公司 | Spraying line |
| CN105688617A (en) * | 2016-04-11 | 2016-06-22 | 珠海市臻的科技有限公司 | Front-end refrigerating and regenerated gas recycling and heating system for adsorbing drying machine |
| CN105879593A (en) * | 2016-04-11 | 2016-08-24 | 珠海市臻的科技有限公司 | Front-end refrigerating and regenerated gas recovering and heating system for adsorption type dryer |
| CN106377981A (en) * | 2016-11-11 | 2017-02-08 | 上海大众祥源动力供应有限公司 | Adsorption type drying device with high operation reliability |
| CN110772935A (en) * | 2018-07-31 | 2020-02-11 | 马尼托沃克起重机集团（法国）公司 | Compressed air drying device |
| US11413568B2 (en) | 2018-07-31 | 2022-08-16 | Manitowoc Crane Group France Sas | Compressed-air drying device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C15 | Extension of patent right duration from 15 to 20 years for appl. with date before 31.12.1992 and still valid on 11.12.2001 (patent law change 1993) | ||
| RN01 | Renewal of patent term | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |