CN2611840Y - Cool storage compressed air freezing dryer - Google Patents
Cool storage compressed air freezing dryer Download PDFInfo
- Publication number
- CN2611840Y CN2611840Y CN 03235970 CN03235970U CN2611840Y CN 2611840 Y CN2611840 Y CN 2611840Y CN 03235970 CN03235970 CN 03235970 CN 03235970 U CN03235970 U CN 03235970U CN 2611840 Y CN2611840 Y CN 2611840Y
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- cold
- compressed air
- heat exchanger
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- compressor
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Abstract
The utility model provides a cold-storage air compressing freeze dryer with low energy consumption, high heating efficiency and good total energy efficiency, mainly comprising a circuit formed through the connection of the refrigerant circulation conduits and a refrigerating system formed by the refrigerant, an air compressing delivery system and a cold-storage hydraulic circulating system. The process of the refrigerant circulation conduits and the refrigerating system is a compressor-a cooler-an expansion valve-a heat exchanging conduit of the evaporator-the compressor. An air compressing inlet is connected with a precooler, a middle gas water separation, an air exchanging conduit of the main cooler, a terminal gas water separation, the other heat exchanging conduit of the precooler and an air compressing outlet through the conduits to form the air compressing delivery system. The coolant storage circulating system is mainly formed by the coolant and the circuit which is a coolant storage groove-a circulating pump-the other heat exchanging conduit of the main cooler-the other heat exchanging conduit of the evaporator-the coolant storage groove. The liquid temperature controller is positioned on the exit of the coolant storage groove and connected with the controlling switch of the compressor through the circuit.
Description
Technical field: the utility model relates to a kind of compressed air drier, particularly relates to a kind ofly removing the compressed-air actuated cold storage freezing dryer for compressed air of freeze drying by cold-storage liquid.
Background technology: existing cooling driers is that the evaporimeter of refrigeration system in the employing machine directly is cooled to pressure leak source temperature more than 0 ℃ to compressed air, by moisture trap and drainage arrangement condensed water is discharged, and reaches the purpose of dried compressed air.1. in the process that existing cooling driers refrigeration system is moved at the scene, mainly avoid compressed air temperature to be lower than 0 ℃ by the hot-gas bypass valve regulation refrigerating capacity in the refrigeration system, refrigeration system is done oepration at full load all the time in this regulative mode, and energy waste is big, and ice is stifled to happen occasionally with the liquid hammer accident; 2. repeatedly transfer, collide between the deflection plate of air-flow in shell-and-tube heat exchanger, the moisture film that is attached to heat exchange surface is taken away and the difficult submicron order droplet that separates of impact comminution poling; Only at terminal moisture trap of evaporator outlet configuration, over-burden to separate the water yield, adds the employing centrifugation for existing cooling driers, and the airflow strikes wall to separating the weak effect of submicron order droplet, makes existing cooling driers overall efficiency poor.Being characterized by of existing cooling driers inefficiency: the true dew point of the compressed air after the processing does not reach rated value; The import and export place compressed air temperature difference is big, reaches 10 ℃～17 ℃, and the thermal efficiency of existing cooling driers is had only about 50%.
Summary of the invention: existing cooling driers energy consumption is big, the thermal efficiency is low in order to solve, the shortcoming of overall efficiency difference, the utility model provides a kind of cold storage freezing dryer for compressed air, remove freeze drying compressed air by cold-storage liquid, comprise refrigeration system, compressed air conveying system, refrigeration system mainly is a heat exchanger channels → compressor by compressor → condenser → expansion valve → evaporimeter, and the loop and the cold-producing medium that are connected to form by refrigerant circulation passage constitute; It is characterized in that: compressed air inlet is connected with a heat exchanger channels of forecooler by pipeline, link to each other with middle moisture trap again, be connected with a heat exchanger channels in the primary cooler then, be connected with the terminal moisture trap by pipeline again, be connected with another heat exchanger channels in the forecooler again, link to each other with compressed air outlet at last, constitute compressed air conveying system; Have the cold-storage fluid circulation, the main loop that another heat exchanger channels → the cold-storage liquid bath forms by another the heat exchanger channels → evaporimeter in cold-storage liquid bath → circulating pump → primary cooler, and cold-storage liquid constitutes; The liquid temperature controller is positioned at the exit of cold-storage liquid bath, by the gauge tap associated of circuit and refrigeration compressor.
The formation device outer surface of described compressed air conveying system is provided with heat-insulation layer.
Described cold storage freezing dryer for compressed air drying technology process is: moisture trap in the middle of entering after the hot Wet Compression air that advances machine is cooled in forecooler, separate contained condensed water and become the half-dried compressed air of middle temperature, then flow to primary cooler, in primary cooler, be cooled to this confidential dew-point temperature of asking by cold-storage liquid, become the dried compressed air of low temperature behind the terminal moisture trap, the hot Wet Compression air heat of being advanced machine by forecooler becomes heat content and the higher dried compressed air finished product gas of temperature at last.In the compressed-air actuated entire work process of freeze drying, the circulating pump of cold-storage fluid circulation turns round always, pumps cold-storage liquid to primary cooler, return the cold-storage liquid bath through evaporimeter from the cold-storage liquid bath; In the evaporimeter of refrigeration system, cold-producing medium is cooled to 1 ℃ ± 0.5 ℃ to freezing point for-5 ℃ cold-storage liquid.When the temperature of cold-storage liquid dropped to set point of temperature, the liquid temperature controller made the gauge tap of compressor close compressor shutdown; The liquid temperature rise is to design temperature in the cold-storage liquid bath, and the liquid temperature controller is opened the gauge tap of compressor, and compressor recovers start.In primary cooler, cold-storage liquid is by the half-dried compressed air of the freezing middle temperature of heat exchanger channels simultaneously.
The formation device outer surface of described compressed air conveying system is provided with heat-insulation layer, can improve the recovery cold, reduce the cooling amount of the refrigeration system of this drying machine, improve the available energy of this drying machine on the other hand, this drying machine thermal efficiency reaches 87%, and the temperature difference of import and export has only 2～3 ℃.To with gas unit or gas equipment gas transmission the time, pipeline outer wall can dewfall, and guarantee the finished product gas of confession contain higher interior energy, improve compressed-air actuated utilization rate, reduce the air consumption of gas equipment.
The true dew point of compressed air after cold storage freezing dryer for compressed air is handled can steady in a long-termly keep, and year accumulative total operating cost is saved about 40% than existing cooling driers, avoid the economic loss that causes because of compressed air band water.Because the compressor of this drying machine in entire work process, is done intermittent running under the operating mode of safety, can not take place to ice stifled, liquid hammer accident, and is easy and simple to handle.
Description of drawings: Fig. 1 is the organigram of the cold storage freezing dryer for compressed air of the utility model.
The specific embodiment: referring to the cold storage compressed air drier of Fig. 1, refrigeration system is by another passage → compressor 7 of a heat exchanger channels → cold excessively/superheater 10 of passage → device for drying and filtering 11 → liquid-sighting glass 12 → magnetic valve 13 → expansion valve 14 → evaporimeter 4 of compressor 7 → condenser 8 → fluid reservoir 9 → excessively cold/superheaters 10, and the loop and the cold-producing medium that are connected to form by the cold-producing medium circulating line constitute; Compressed air inlet 17 is connected with a heat exchanger channels of forecooler 1 by pipeline, link to each other with middle moisture trap 20 again, be connected with a heat exchanger channels in the primary cooler 3 then, be connected with terminal moisture trap 2 by pipeline again, be connected with another heat exchanger channels of forecooler 1 again, link to each other with compressed air outlet 18 at last, constitute compressed air conveying system; The cold-storage fluid circulation, the main loop that another heat exchanger channels → cold-storage liquid bath 5 forms by another the heat exchanger channels → evaporimeter 4 in cold-storage liquid bath 5 → circulating pump 6 → primary cooler 3, and cold-storage liquid constitutes; Liquid temperature controller 16 is positioned at the exit of cold-storage liquid bath 5, by gauge tap 15 associated of circuit and refrigeration compressor.The formation device outer surface of described compressed air conveying system is provided with heat-insulation layer.Cold-storage liquid bath outer wall has heat-insulation layer, in be provided with homogenizing plate; The evaporimeter of drying machine also can have heat-insulation layer.The forecooler 1 of this drying machine, primary cooler 3, evaporimeter 4 and condenser 8 all are the board-like or plate-fin heat exchangers that adopts vertical installation.Middle moisture trap 20 and terminal moisture trap 2 place in the horizontal cylindrical pressure vessel altogether, are separated into two separator chamber with disk spacer, and a water collect tank 21 is respectively established in bottom, two chambeies, is drip pipes 19 in the bottom of water collect tank 21.
Claims (7)
1, a kind of cold storage freezing dryer for compressed air, remove freeze drying compressed air by cold-storage liquid, comprise refrigeration system, compressed air conveying system, refrigeration system mainly is a heat exchanger channels → compressor by compressor → condenser → expansion valve → evaporimeter, and the loop and the cold-producing medium that are connected to form by the cold-producing medium circulating line constitute; It is characterized in that: compressed air inlet is connected with a heat exchanger channels of forecooler by pipeline, link to each other with middle moisture trap again, be connected with a heat exchanger channels in the primary cooler then, be connected with the terminal moisture trap by pipeline again, be connected with another heat exchanger channels in the forecooler again, link to each other with compressed air outlet at last, constitute compressed air conveying system; Have the cold-storage fluid circulation, the main loop that another heat exchanger channels → the cold-storage liquid bath forms by another the heat exchanger channels → evaporimeter in cold-storage liquid bath → circulating pump → primary cooler, and cold-storage liquid constitutes; The liquid temperature controller is positioned at the exit of cold-storage liquid bath, by the gauge tap associated of circuit and refrigeration compressor.
2, cold storage freezing dryer for compressed air according to claim 1 is characterized in that: the formation device outer surface of described compressed air conveying system is provided with heat-insulation layer.
3, cold storage freezing dryer for compressed air according to claim 1 and 2 is characterized in that: described cold-storage liquid bath outer wall has heat-insulation layer, and inside is provided with homogenizing plate.The evaporimeter of drying machine also can have heat-insulation layer.
4, cold storage freezing dryer for compressed air according to claim 1 and 2 is characterized in that: moisture trap and terminal moisture trap place in the horizontal cylindrical pressure vessel altogether in the middle of described, are separated into two separator chamber with disk spacer.
5, cold storage freezing dryer for compressed air according to claim 1 and 2 is characterized in that: the forecooler of described drying machine, primary cooler, evaporimeter and condenser all adopt the board-like or plate-fin heat exchanger of vertical installation.
6, cold storage freezing dryer for compressed air according to claim 3 is characterized in that: moisture trap and terminal moisture trap place in the horizontal cylindrical pressure vessel altogether in the middle of described, are separated into two separator chamber with disk spacer.
7, cold storage freezing dryer for compressed air according to claim 3 is characterized in that: the forecooler of described drying machine, primary cooler, evaporimeter and condenser all adopt the board-like or plate-fin heat exchanger of vertical installation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03235970 CN2611840Y (en) | 2003-03-21 | 2003-03-21 | Cool storage compressed air freezing dryer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03235970 CN2611840Y (en) | 2003-03-21 | 2003-03-21 | Cool storage compressed air freezing dryer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2611840Y true CN2611840Y (en) | 2004-04-14 |
Family
ID=34166552
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03235970 Expired - Lifetime CN2611840Y (en) | 2003-03-21 | 2003-03-21 | Cool storage compressed air freezing dryer |
Country Status (1)
| Country | Link |
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| CN (1) | CN2611840Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100436992C (en) * | 2006-04-21 | 2008-11-26 | 程成 | A freezing dryer for compressed air |
| CN101435651B (en) * | 2008-12-11 | 2011-04-20 | 广州东誉工业设备有限公司 | Mute energy-saving freezing type drier |
| CN102430321A (en) * | 2011-08-02 | 2012-05-02 | 浙江大学 | Cooling and drying integrated machine |
| CN102463027A (en) * | 2010-11-15 | 2012-05-23 | 谢逢华 | Drying air compressor utilizing self heat and air for refrigeration |
| WO2018086474A1 (en) * | 2016-11-11 | 2018-05-17 | 中国科学院理化技术研究所 | Low-temperature rapid freeze-drying system |
-
2003
- 2003-03-21 CN CN 03235970 patent/CN2611840Y/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100436992C (en) * | 2006-04-21 | 2008-11-26 | 程成 | A freezing dryer for compressed air |
| CN101435651B (en) * | 2008-12-11 | 2011-04-20 | 广州东誉工业设备有限公司 | Mute energy-saving freezing type drier |
| CN102463027A (en) * | 2010-11-15 | 2012-05-23 | 谢逢华 | Drying air compressor utilizing self heat and air for refrigeration |
| CN102430321A (en) * | 2011-08-02 | 2012-05-02 | 浙江大学 | Cooling and drying integrated machine |
| CN102430321B (en) * | 2011-08-02 | 2013-11-20 | 浙江大学 | Cooling and drying integrated machine |
| WO2018086474A1 (en) * | 2016-11-11 | 2018-05-17 | 中国科学院理化技术研究所 | Low-temperature rapid freeze-drying system |
| US10900713B2 (en) | 2016-11-11 | 2021-01-26 | Technical Institute Of Physics And Chemistry, Chinese Academy Of Sciences | Low-temperature quick-freezing freeze-drying system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20130321 Granted publication date: 20040414 |