CN110397592B - High quality air compression processing system - Google Patents
High quality air compression processing system Download PDFInfo
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- CN110397592B CN110397592B CN201910739603.6A CN201910739603A CN110397592B CN 110397592 B CN110397592 B CN 110397592B CN 201910739603 A CN201910739603 A CN 201910739603A CN 110397592 B CN110397592 B CN 110397592B
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- 238000007906 compression Methods 0.000 title claims abstract description 33
- 230000006835 compression Effects 0.000 title claims abstract description 32
- 239000002808 molecular sieve Substances 0.000 claims abstract description 25
- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical compound [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 claims abstract description 25
- 238000001816 cooling Methods 0.000 claims abstract description 23
- 239000006096 absorbing agent Substances 0.000 claims abstract description 14
- 239000012535 impurity Substances 0.000 claims abstract description 10
- 238000001179 sorption measurement Methods 0.000 claims description 92
- 238000002156 mixing Methods 0.000 claims description 3
- 230000009977 dual effect Effects 0.000 claims 2
- 239000002245 particle Substances 0.000 abstract description 24
- 239000007788 liquid Substances 0.000 abstract description 19
- 239000007787 solid Substances 0.000 abstract description 18
- 239000003595 mist Substances 0.000 abstract description 12
- 238000001914 filtration Methods 0.000 abstract description 6
- 239000007789 gas Substances 0.000 description 17
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 239000000463 material Substances 0.000 description 4
- 238000005265 energy consumption Methods 0.000 description 3
- 241001631457 Cannula Species 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000009423 ventilation Methods 0.000 description 2
- 239000000443 aerosol Substances 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000020169 heat generation Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
- F04C18/08—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
- F04C18/12—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type
- F04C18/14—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons
- F04C18/16—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons with helical teeth, e.g. chevron-shaped, screw type
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C23/00—Combinations of two or more pumps, each being of rotary-piston or oscillating-piston type, specially adapted for elastic fluids; Pumping installations specially adapted for elastic fluids; Multi-stage pumps specially adapted for elastic fluids
- F04C23/02—Pumps characterised by combination with, or adaptation to, specific driving engines or motors
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
- F04C29/0092—Removing solid or liquid contaminants from the gas under pumping, e.g. by filtering or deposition; Purging; Scrubbing; Cleaning
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
- F04C29/02—Lubrication; Lubricant separation
- F04C29/026—Lubricant separation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
- F04C29/04—Heating; Cooling; Heat insulation
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Drying Of Gases (AREA)
- Compressor (AREA)
Abstract
The utility model provides a high-quality air compression treatment system which comprises a box body, wherein an air filter element, a double-stage variable-frequency air compressor, a coarse filter, a post-cooling system, a precise filter, a cold dryer, an ultra-precise filter and an air treatment host are sequentially connected in the box body. The air is filtered by an air filter element to remove large-particle impurities, and enters a two-stage variable-frequency air compressor to obtain compressed air; the compressed air passes through a coarse filter to filter out solid or liquid particles larger than 3 mu m in the compressed air; then passing through a cooling system, and then passing through a precise filter to filter out solid or liquid particles larger than 0.01 mu m and 99.99% of oil mist; filtering solid or liquid particles larger than 0.01 mu m and 99.999% of oil mist by a cold dryer and an ultra-precise filter; and finally, the compressed air reaching the first-level standard is treated by a molecular sieve absorber in an air treatment host.
Description
Technical Field
The utility model relates to the technical field of air compressors, in particular to a medical high-quality air compression treatment system.
Background
Air compressors are generally referred to as air compressors, which are devices used to compress a gas. The air compressor is similar in construction to the water pump. Most air compressors are reciprocating piston, rotary vane or rotary screw.
The traditional compressor is difficult to realize oil-free compression, and the oxygenerator used for medical treatment and health is main equipment for maintaining the life of a patient, and the quality of generated oxygen also directly influences the physical rehabilitation condition of the patient, so that the higher the quality of compressed air is, the more beneficial to the physical rehabilitation of the patient.
Conventionally, an air-cooled integrated air compressor (201720614811. X) includes a case in which an air compressor and a chiller dryer are integrated; the air compressor and the cold dryer are arranged at the bottom of the box body; the top of the box body is also provided with an air inlet and an air outlet; the air inlet is connected with the air inlet end of the air compressor; the exhaust port is connected with the exhaust end of the cold dryer; and the exhaust end of the air compressor is connected with the air inlet end of the cold dryer through a pipeline. The utility model provides an air-cooled integrated air compressor, which is characterized in that a screw machine type air compressor and a cold dryer are integrally arranged in a box body, so that a product becomes more compact, the design and trend of a pipeline are more reasonable, and the use space of a user machine room is greatly saved; and the gas generated by the air compressor is directly dried by a cold dryer, and is finally supplied to customers. However, the compressor adopted by the utility model is a common screw compressor, and the motor is a common three-phase asynchronous motor, so that the energy consumption is higher; the air is dried by the cold dryer, the pressure dew point of the compressed air at the outlet is higher, the air compression quality is difficult to be ensured, and even if a filter is adopted, only liquid oil in the compressed air can be filtered, but oil vapor and aerosol are difficult to filter, so that the actual oil content of the compressed air at the outlet is difficult to reach the first-level ISO8573.1 standard.
Disclosure of Invention
The utility model aims to overcome the defects of the prior art, and provides a high-quality air compression treatment system which comprises a box body, wherein an air filter element, a double-stage variable-frequency air compressor, a coarse filter, a post-cooling system, a precise filter, a cold dryer, an ultra-precise filter and an air treatment host are sequentially connected in the box body, wherein the air treatment host comprises an air inlet pipeline, a molecular sieve absorber, an air outlet pipeline and an electric control valve which are sequentially connected with the air inlet pipeline and the air outlet pipeline. Air sequentially passes through an air filter element, a two-stage variable frequency air compressor, a coarse filter, a post-cooling system, a precise filter, a cold dryer, an ultra-precise filter and an air treatment host, and enters the two-stage variable frequency air compressor through large particle filtration of the air filter element to initially obtain compressed air; the compressed air passes through a coarse filter to filter out solid or liquid particles larger than 3 mu m in the compressed air; then, after passing through a cooling system, solid or liquid particles larger than 0.01 mu m and 99.99% of oil mist in the compressed air are filtered through a precision filter; then the compressed air passes through a cold dryer and an ultra-precise filter to filter out solid or liquid particles with the particle size of more than 0.01 mu m and 99.999 percent of oil mist; and finally, the compressed air reaching the ISO8573.1 level standard is treated by a molecular sieve absorber in an air treatment host.
In order to achieve the above purpose, the utility model provides a high-quality air compression treatment system, which comprises a box body, wherein an air filter element, a double-stage variable frequency air compressor, a coarse filter, a post-cooling system, a precise filter, a cold dryer, an ultra-precise filter and an air treatment host are sequentially connected in the box body;
the two-stage variable-frequency air compressor, the coarse filter, the cold dryer and the air treatment host are all arranged at the bottom of the box body; the rear cooling system is arranged at the top of the inner side of the box body; the air filter element is arranged above the two-stage variable-frequency air compressor; the precise filter is connected to the air inlet passage of the cold dryer through a pipeline, the ultra-precise filter is connected to the air outlet passage of the cold dryer through a pipeline, and the air outlet of the ultra-precise filter is connected with the air treatment host;
the air treatment host comprises an air inlet pipeline, a molecular sieve absorber, an air outlet pipeline and an electric control valve, wherein the air inlet pipeline, the molecular sieve absorber and the air outlet pipeline are sequentially connected; the molecular sieve absorber comprises a first adsorption tower and a second adsorption tower, and the first adsorption tower and the second adsorption tower can alternately adsorb and analyze under the action of the electric control valve, so that the molecular sieve absorber is always kept dry, and water in the compressed air is removed.
Further, the two-stage variable frequency air compressor comprises a motor, a frequency converter is arranged on the motor, an air compressor main unit is arranged at one end of the motor, an oil-gas separator is arranged at one side of the air compressor main unit, and the air compressor main unit is connected with the oil-gas separator through an oil-gas mixing pipe.
Further, the motor is a permanent magnet variable frequency motor, and a stator part of the motor is made of permanent magnet materials.
Further, the air compressor main machine is a double-stage compression micro-oil screw compressor.
Further, the coarse filter is used to filter out solid or liquid particles greater than 3 μm in the compressed air so that the residual oil content is 5ppmw/w.
Further, the after-cooling system is used for cooling the compressed air.
Further, the post-cooling system is a centrifugal fan for air cooling.
Further, the fine filter is used to filter out solid or liquid particles greater than 1 μm and 99.99% of oil mist in the compressed air so that the residual oil content is 0.01ppmw/w.
Further, the cold dryer is a high-temperature air-cooled cold dryer and is used for reducing the moisture content in the compressed air and the pressure dew point of the compressed air.
Further, the ultra-precise filter is used for filtering out solid or liquid particles larger than 0.01 mu m and 99.999% of oil mist in compressed air, and the content of residual oil is 0.001ppmw/w.
Further, the system also comprises a control system for controlling the starting of the two-stage variable-frequency air compressor, the cold dryer and the air treatment host; the two-stage variable-frequency air compressor, the cold dryer and the air treatment host are connected with the control system.
Further, the control system also comprises a display screen; the cold dryer is provided with a pressure dew point temperature display screen; the display screen and the pressure dew point temperature display screen are arranged on the same operation panel; the operation plate is arranged on the box body.
Further, the back of the box body is provided with ventilation grid holes.
Further, the molecular sieve adsorber includes first adsorption tower and second adsorption tower, the air inlet pipeline is including the air inlet pipeline that is provided with the air inlet and be provided with the exhaust pipeline of gas vent, the one end of air inlet pipeline is connected to the entry of first adsorption tower, the other end of air inlet pipeline is connected to the entry of second adsorption tower, the solenoid valve is including setting up on the air inlet pipeline as normally open valve's first admission valve and second admission valve and setting up first discharge valve and the second discharge valve on the air inlet pipeline, first admission valve is located on the pipeline section between first adsorption tower with the air inlet, the second admission valve is located on the pipeline section between the second adsorption tower with be provided with the gas vent, the one end of exhaust pipeline is connected to first admission valve with the pipeline section between the first adsorption tower, the other end of exhaust pipeline is connected to the pipeline between the second adsorption tower, the first discharge valve is located on the second inlet pipeline between the other end of exhaust pipeline the second adsorption tower is connected to the second adsorption tower, the other end of exhaust pipeline is including the second adsorption tower is connected to the intermediate pipeline.
Further, a throttle ball valve is arranged on the first middle pipeline.
Further, the air outlet pipeline is provided with a first one-way valve positioned on a pipe section between the outlet of the first adsorption tower and the air outlet and a second one-way valve positioned on a pipe section between the outlet of the second adsorption tower and the air outlet, the inlet of the first one-way valve is led to the outlet of the first adsorption tower, the outlet of the first one-way valve is led to the air outlet, the inlet of the second one-way valve is led to the outlet of the second adsorption tower, and the outlet of the second one-way valve is led to the air outlet.
Further, the first intake valve, the second intake valve, the first exhaust valve and the second exhaust valve are respectively angle valves.
Further, the first air inlet valve, the second air inlet valve, the first air outlet valve, the second air outlet valve and the shuttle valve are respectively controlled by corresponding electromagnetic valves, and the electromagnetic valves are electrically connected with the control system.
Further, the first adsorption tower comprises a first connecting pipe and a plurality of first cylinders, the second adsorption tower comprises a second connecting pipe and second cylinders corresponding to the plurality of first cylinders, the tail ends of the plurality of first cylinders are provided with cannulas extending into the first connecting pipe, and the tail ends of the plurality of second cylinders are provided with cannulas extending into the second connecting pipe.
The air compression treatment process of the application is as follows:
the air passes through an air filter core, primary filters large particle impurities in the air, enters a double-stage variable frequency air compressor, is compressed in the double-stage variable frequency air compressor, passes through a coarse filter, filters solid or liquid particles larger than 3 mu m in the compressed air, is cooled by a post-cooling system, passes through a precision filter, filters solid or liquid particles larger than 0.011 mu m in the compressed air and 99.99% of oil mist, enters a cold dryer, reduces the moisture content in the compressed air entering the cold dryer, filters solid or liquid particles larger than 0.01 mu m and 99.999% of oil mist through an ultra-precision filter, finally enters an air treatment host, adopts a pressure swing adsorption principle, deeply dries the compressed air according to the pressure swing adsorption characteristic of a 4A molecular sieve, reduces the pressure dew point of the compressed air to below-30 ℃, and discharges the deeply dried compressed air from an air treatment host air outlet pipeline for users.
Due to the adoption of the technical scheme, the utility model has the beneficial effects that:
1. compared with the traditional three-phase asynchronous motor, the stator part of the motor is made of permanent magnet materials, so that the motor has higher energy level and lower energy consumption.
2. Compared with single-stage compression, the double-stage compression is higher in compression efficiency by adopting the double-extreme pressure micro-oil screw compressor, less idle work is caused by heating, equipment wear is slow, and the service life is longer.
3. Compared with the traditional axial flow fan, the centrifugal fan has larger air quantity, higher cooling efficiency and lower noise.
4. The utility model is provided with a cold dryer which is a high-temperature air-cooled cold dryer, and the cold dryer has the function of further reducing the moisture content in compressed air and reducing the pressure dew point of the compressed air to 3-10 ℃.
5. The air treatment host machine is arranged, so that compressed air entering the air treatment host machine is deeply dried, the air treatment host machine adopts a pressure swing adsorption principle, the compressed air is deeply dried, the pressure dew point of the compressed air is reduced to below minus 30 ℃, and the dew point and the oil content of the compressed air reach the primary standard of the quality of the compressed air.
6. The utility model adopts the layer-by-layer filtration of the coarse filter, the precise filter and the ultra-precise filter to ensure that the granularity in the compressed air reaches the first-level standard.
Drawings
In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is an internal perspective view of a high quality air compression processing system in accordance with the present utility model.
FIG. 2 is a schematic diagram of an air compression process flow of a high quality air compression system according to the present utility model.
FIG. 3 is a schematic diagram of an air handling unit according to the present utility model.
Fig. 4 is a schematic perspective view of an air treatment host according to the present utility model.
Fig. 5 is an internal schematic view of the first adsorption column of the present utility model.
The reference numerals are as follows:
1. a case; 2. an air filter element; 3. a two-stage variable frequency air compressor; 4. a coarse filter; 5. an aftercooling system; 6. a precision filter; 7. a cold dryer; 8. an ultra-precise filter; 9. an air treatment host; 91. an air intake line; 9110. an air inlet; 9120. an air intake duct; 9130. an exhaust port; 9140. an exhaust duct; 92. an air outlet pipeline; 9210. an air outlet; 9220. an air outlet pipe; 9230. a first intermediate conduit; 9240. a second intermediate conduit; 93. a first adsorption tower; 9310. a first connection pipe; 9320. a first cylinder; 9330. a cannula; 94. a second adsorption tower, 95 and a first air inlet valve; 96. a second intake valve; 97. a first exhaust valve; 98. a second exhaust valve; 99. a throttle ball valve; 910. a shuttle valve; 911. a first one-way valve; 912. a second one-way valve; 913. a muffler.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. The terminology used herein in the description of the utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. It is particularly noted that the term "connected" as used herein, unless otherwise specifically indicated (e.g., "electrically connected"), is to be understood as "connected via a gas line/gas pipe".
The utility model is further described below with reference to the accompanying drawings and specific examples:
referring to fig. 1, 2, 3 and 4, the present embodiment provides a high quality air compression processing system, which includes a box 1, wherein an air filter element 2, a two-stage variable frequency air compressor 3, a coarse filter 4, a post-cooling system 5, a precise filter 6, a cold dryer 7, an ultra-precise filter 8 and an air processing host 9 are sequentially connected in the box 1;
the two-stage variable-frequency air compressor 3, the coarse filter 4, the cold dryer 7 and the air treatment host 9 are all arranged at the bottom of the box body 1; the rear cooling system 5 is arranged at the top of the inner side of the box body 1; the air filter element 2 is arranged above the two-stage variable-frequency air compressor 3; the precise filter 6 is connected to the air inlet passage of the cold dryer 7 through a pipeline, the ultra-precise filter 8 is connected to the air outlet passage of the cold dryer 7 through a pipeline, and the air outlet of the ultra-precise filter 8 is connected with the air treatment host 9;
the air treatment host 9 comprises an air inlet pipeline 91, a molecular sieve absorber, an air outlet pipeline 92 and an electric control valve arranged on the air inlet pipeline 91 and the air outlet pipeline 92, wherein the molecular sieve absorber comprises a first adsorption tower 93 and a second adsorption tower 94, and under the action of the electric control valve, the first adsorption tower 93 and the second adsorption tower 94 can alternately adsorb and analyze, so that compressed air entering the air treatment host 9 is deeply dried, the air treatment host 9 adopts a pressure swing adsorption principle, the compressed air is deeply dried, the pressure dew point of the compressed air is reduced to below-30 ℃, and the dew point and the oil content of the compressed air reach the primary standard of the quality of the compressed air.
As a preferred embodiment, referring to fig. 1, the two-stage variable frequency air compressor 3 comprises a motor, a frequency converter is arranged on the motor, an air compressor main unit is arranged at one end of the motor, an oil-gas separator is arranged at one side of the air compressor main unit, and the air compressor main unit is connected with the oil-gas separator through an oil-gas mixing pipe.
As a preferred embodiment, the motor is a permanent magnet variable frequency motor, the stator part of the motor is made of permanent magnet materials, and compared with the traditional three-phase asynchronous motor, the stator part of the motor is made of permanent magnet materials, so that the motor has higher energy efficiency level, and the energy consumption of the equipment is smaller.
As a preferred embodiment, the air compressor main machine is a double-stage compression micro-oil screw compressor, the compression efficiency of the double-stage compression is higher compared with that of single-stage compression, the idle work caused by heat generation is smaller, the equipment wear is slow, and the service life is longer.
The coarse filter 4 is used for filtering solid or liquid particles larger than 3 mu m in the compressed air so that the content of residual oil is 5ppmw/w; the fine filter 6 is used for filtering out solid or liquid particles larger than 1 μm and 99.99% of oil mist in the compressed air, so that the content of residual oil is 0.01ppmw/w; the ultra-fine filter 8 serves to filter out solid or liquid particles greater than 0.01 μm in the compressed air and 99.99% of the oil mist so that the residual oil content is 0.001ppmw/w.
As a preferred embodiment, the post-cooling system 5 is used for cooling the compressed air, and the post-cooling system 5 is a centrifugal fan for air cooling.
As a preferred embodiment, the cold dryer 7 is a high temperature air-cooled type cold dryer, which serves to further reduce the moisture content in the compressed air, reducing the pressure dew point of the compressed air to 3-10 ℃.
As a preferred embodiment, the air treatment system further comprises a control system for controlling the starting of the two-stage variable-frequency air compressor 3, the cold dryer 7 and the air treatment host 9; the two-stage variable-frequency air compressor 3, the cold dryer 7 and the air treatment host 9 are connected with the control system.
As a preferred embodiment, the control system further comprises a display screen; the cold dryer 7 is provided with a pressure dew point temperature display screen; the display screen and the pressure dew point temperature display screen are arranged on the same operation panel; the operation plate is arranged on the box body.
As a preferred embodiment, the back of the box body is provided with ventilation grid holes.
As a preferred embodiment, referring to fig. 3 and 4, the molecular sieve adsorber comprises a first adsorption tower 93 and a second adsorption tower 94, the air intake pipe 91 comprises an air intake pipe 9120 provided with an air intake port 9110 and an air exhaust pipe 9140 provided with an air exhaust port 9130 (the air exhaust port 9130 may lead to an air exhaust pipe 9140 provided with a muffler 913), one end of the air intake pipe 9120 is connected to an inlet of the first adsorption tower 93, the other end of the air intake pipe 9120 is connected to an inlet of the second adsorption tower 94, the electromagnetic valve comprises a first air intake valve and a second air intake valve 96 which are provided on the air intake pipe 9120 as the normally open valves, and a first air exhaust valve 97 and a second air exhaust valve 98 which are provided on the air exhaust pipe 9140, the first air intake valve 95 is positioned on a pipe section between the first adsorption tower 93 and the air intake port 9110, the second air intake valve 96 is positioned on a pipe section between the second adsorption tower 94 and the air intake port 9110, one end of the air exhaust pipe 9140 is connected to a pipe section between the first air intake valve 96 and the first adsorption tower 93, the other end of the air intake pipe 9140 is connected to an inlet of the second air intake pipe 94, the other end of the air intake pipe 9140 is connected to an inlet of the second air intake valve 9240, the electromagnetic valve comprises a first air exhaust valve 97 and a second air exhaust valve 9240 which is positioned on an intermediate pipe section between the air exhaust pipe 9220 and an air exhaust pipe 9240 which is positioned on the air exhaust pipe 9220, and an intermediate pipe 9240 is positioned between the air exhaust valve 9220 and an air outlet of the first air exhaust pipe 9240, and an intermediate pipe 9220 which is positioned between the air intake valve 9220 and an air outlet 9220.
As a preferred embodiment, referring to fig. 3 and 4, a throttle ball valve 99 is provided on the first intermediate pipe 9230.
As a preferred embodiment, referring to fig. 3 and 4, the air outlet pipe 9220 has a first check valve 911 located on a pipe section between the outlet of the first adsorption tower 93 and the air outlet 9210 and a second check valve 912 located on a pipe section between the outlet of the second adsorption tower 94 and the air outlet 9210, the inlet of the first check valve 911 is open to the outlet of the first adsorption tower 93, the outlet of the first check valve 911 is open to the air outlet 9210, the inlet of the second check valve 912 is open to the outlet of the second adsorption tower 94, and the outlet of the second check valve 912 is open to the air outlet 9210.
As a preferred embodiment, the first intake valve 95, the second intake valve 96, the first exhaust valve 97, and the second exhaust valve 98 are angle valves, respectively.
As a preferred embodiment, the first and second intake valves 95, 96, 97 and 98 and the shuttle valve 910 are controlled by corresponding solenoid valves, respectively, which are electrically connected to the control system.
As a preferred embodiment, referring to fig. 5, the first adsorption tower 93 includes a first connection pipe 9310 and a plurality of first cylinders 9320, and the second adsorption tower 94 includes a second connection pipe and second cylinders corresponding to the plurality of first cylinders 9320, each end of the plurality of first cylinders 9320 having a cannula 9330 extending into the first connection pipe 9310, each end of the plurality of second cylinders having a cannula 9330 extending into the second connection pipe.
The air compression treatment process of the application is as follows:
the air passes through an air filter element 2, primary filters large particle impurities in the air, enters a double-stage variable frequency air compressor 3, is compressed in the double-stage variable frequency air compressor 3, passes through a coarse filter 4, filters solid or liquid particles larger than 3 mu m in the compressed air, ensures that the content of residual oil is 5ppmw/w, passes through a post-cooling system 5 for cooling, passes through a precise filter 6, and filters solid or liquid particles larger than 0.01 mu m in the compressed air and 99.99% of oil mist, so that the content of the residual oil is 0.01ppmw/w; then the compressed air enters a cold dryer 7, the water content in the compressed air entering the cold dryer 7 is reduced, solid or liquid particles larger than 0.01 mu m in the compressed air and 99.999% of oil mist are filtered through an ultra-precise filter 8, so that the content of residual oil is 0.001ppmw/w; finally, the air enters an air treatment host machine, the air treatment host machine adopts a pressure swing adsorption principle, the compressed air is deeply dried according to the pressure swing adsorption characteristic of the 4A molecular sieve, the pressure dew point of the compressed air is reduced to below minus 30 ℃, and the compressed air is discharged from an air outlet pipeline 92 of the air treatment host machine 9 after the deep drying for a user to use.
The molecular sieves in the molecular sieve adsorbers mentioned above are preferably 4A grade water absorbing sieves, and the specific dimensions and performance parameters of a 4A grade water absorbing sieve according to one embodiment of the present utility model are shown in the following table.
| Product type | 4*8 mesh ball-packed molecular sieve |
| Average particle size (mm) | 3.9-4.2 |
| Bulk Density (kg/m 3) | ≧680 |
| Crushing strength (N) | ≧75 |
| Balance water adsorption capacity (wt.%) | ≧21％ |
| Residual moisture content (wt.%) | ≦1.5％ |
In addition, the molecular sieve absorber preferably adopts a PSA (pressure swing adsorption) gas adsorption separation technology, impurities and oil absorbed by the molecular sieve absorber can be discharged, and the pressure dew point of the air treatment host provided by the utility model can be kept below minus 40 ℃ by adopting a pressure swing adsorption principle and the molecular sieve of the type.
The working principle of the air compression host is as follows:
taking the first adsorption tower 93, the second adsorption tower 94 for adsorption and the operation time of 3min-10min as an example, first air inlet valve 95 and second air outlet valve 98 are opened, second air inlet valve 96 and first air outlet valve 98 are closed, air entering air inlet pipeline 9120 from air inlet 9110 enters the lower part of first adsorption tower 93 through first air inlet valve 95, is discharged from the outlet of first adsorption tower 94 after being treated by first air inlet valve 95 from bottom to top, and is discharged from air outlet 9210 through first one-way valve 911, molecular sieve in first adsorption tower 93 works, and moisture or oil impurities in air are absorbed. When the operation is 200s-300s, the second exhaust valve 98 is closed (time can be set), the shuttle valve 910 is opened, the gas in the first adsorption tower 93 passes through the shuttle valve 910 and enters the second adsorption tower 94, so that the gas pressure in the second adsorption tower 94 is increased to be consistent or basically consistent with that of the first adsorption tower 93, when the operation reaches 300 s-400 s, the second air inlet valve 96 and the first exhaust valve 97 are simultaneously opened, the first air inlet valve 95 is closed, the gas in the second adsorption tower 94 passes through the gas path throttling ball valve 99 and enters the first adsorption tower 93, moisture or oil impurities and the like in the first adsorption tower 93 are analyzed from top to bottom, the moisture or oil impurities and the like can be discharged from the first exhaust valve 97, in a word, the first adsorption tower 93 and the second adsorption tower 94 can alternately adsorb and analyze, so that the moisture in the molecular sieve adsorber is kept dry all the time, the moisture in the compressed air is adsorbed better, and the compressed air discharged from the air outlet reaches the first-level quality standard is ensured.
The foregoing has outlined rather broadly the more detailed description of the utility model in order that the detailed description of the utility model herein may be better understood, and in order that the present contribution to the art may be better appreciated. It should be noted that it will be apparent to those skilled in the art that various modifications and adaptations of the utility model can be made without departing from the principles of the utility model and these modifications and adaptations are intended to be within the scope of the utility model as defined in the following claims.
Claims (9)
1. A high quality air compression processing system, comprising:
the box body is internally and sequentially connected with an air filter element, a two-stage variable frequency air compressor, a coarse filter, a post-cooling system, a precise filter, a cold dryer, an ultra-precise filter and an air treatment host;
the two-stage variable-frequency air compressor, the coarse filter, the cold dryer and the air treatment host are all arranged at the bottom of the box body; the rear cooling system is arranged at the top of the inner side of the box body; the air filter element is arranged above the two-stage variable-frequency air compressor; the precise filter is connected to the air inlet passage of the cold dryer through a pipeline, the ultra-precise filter is connected to the air outlet passage of the cold dryer through a pipeline, and the air outlet of the ultra-precise filter is connected with the air treatment host;
the air treatment host comprises an air inlet pipeline, a molecular sieve absorber, an air outlet pipeline and an electric control valve, wherein the air inlet pipeline, the molecular sieve absorber and the air outlet pipeline are sequentially connected; the molecular sieve absorber comprises a first adsorption tower and a second adsorption tower, and the first adsorption tower and the second adsorption tower can alternately adsorb and analyze under the action of the electric control valve;
the air inlet pipeline comprises an air inlet pipeline provided with an air inlet and an air outlet pipeline provided with an air outlet, one end of the air inlet pipeline is connected to the inlet of the first adsorption tower, and the other end of the air inlet pipeline is connected to the inlet of the second adsorption tower;
the air outlet pipeline is provided with a first one-way valve positioned on a pipe section between the outlet of the first adsorption tower and the air outlet and a second one-way valve positioned on a pipe section between the outlet of the second adsorption tower and the air outlet;
the electric control valve comprises a first air inlet valve and a second air inlet valve which are arranged on the air inlet pipeline and serve as normally open valves, and a first exhaust valve and a second exhaust valve which are arranged on the exhaust pipeline; a first middle pipeline and a second middle pipeline are connected between the outlet of the first adsorption tower and the outlet of the second adsorption tower, the electromagnetic valve comprises a shuttle valve arranged on the second middle pipeline, and a throttle ball valve is arranged on the first middle pipeline;
the first air inlet valve and the second air outlet valve are opened, the second air inlet valve and the first air outlet valve are closed, the air entering the air inlet pipeline enters the lower part of the first adsorption tower through the first air inlet valve, is discharged from the outlet of the first adsorption tower after being treated by the first air inlet valve from bottom to top, is discharged from the air outlet through the first one-way valve, and the molecular sieve in the first adsorption tower works to absorb moisture or oil impurities in the air; when the preset time is reached, the second air inlet valve and the first air outlet valve are simultaneously opened, the first air inlet valve is closed, the air path throttling ball valve in the second adsorption tower enters the first adsorption tower, moisture or oil impurities in the first adsorption tower are analyzed from top to bottom, and the moisture or oil impurities are discharged from the first air outlet valve.
2. The high-quality air compression treatment system according to claim 1, wherein the two-stage variable-frequency air compressor comprises a motor, a frequency converter is arranged on the motor, an air compressor main unit is arranged at one end of the motor, an oil-gas separator is arranged at one side of the air compressor main unit, and the air compressor main unit is connected with the oil-gas separator through an oil-gas mixing pipe.
3. The high quality air compression processing system of claim 2, wherein the air compressor main machine is a dual stage compression micro oil screw compressor.
4. The high quality air compression processing system of claim 1, wherein the cold dryer is a high temperature air cooled cold dryer for reducing the moisture content of the compressed air and the pressure dew point of the compressed air.
5. The high quality air compression processing system of claim 1, further comprising a control system for controlling the start-up of the dual stage variable frequency air compressor, the chiller dryer and the air handling host; the two-stage variable-frequency air compressor, the cold dryer and the air treatment host are connected with the control system.
6. The high quality air compression processing system of claim 5, wherein the control system further comprises a display screen; the cold dryer is provided with a pressure dew point temperature display screen; the display screen and the pressure dew point temperature display screen are arranged on the same operation panel; the operation plate is arranged on the box body.
7. The high quality air compression processing system according to claim 1, wherein the first intake valve is located on a pipe section between the first adsorption tower and the air intake port, the second intake valve is located on a pipe section between the second adsorption tower and the air intake port, one end of the air discharge pipe is connected to a pipe section between the first intake valve and the first adsorption tower, the other end of the air discharge pipe is connected to a pipe section between the second intake valve and the second adsorption tower, the first exhaust valve is located on a pipe section between one end of the air discharge pipe and the air exhaust port, the second exhaust valve is located on a pipe section between the other end of the air discharge pipe and the air exhaust port, the air discharge pipe includes an air discharge pipe provided with an air intake port, one end of the air discharge pipe is connected to an outlet of the first adsorption tower, and the other end of the air discharge pipe is connected to an outlet of the second adsorption tower.
8. The high quality air compression processing system of claim 1, wherein the inlet of the first one-way valve opens into the outlet of the first adsorption column, the outlet of the first one-way valve opens into the outlet, the inlet of the second one-way valve opens into the outlet of the second adsorption column, and the outlet of the second one-way valve opens into the outlet.
9. The high quality air compression processing system of claim 1, wherein the first adsorption tower comprises a first connecting tube and a plurality of first cylinders, the second adsorption tower comprises a second connecting tube and a second cylinder corresponding to the plurality of first cylinders, each end of the plurality of first cylinders has a cannula extending into the first connecting tube, and each end of the plurality of second cylinders has a cannula extending into the second connecting tube.
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| CN110816583B (en) * | 2019-11-15 | 2021-01-15 | 南京中车浦镇海泰制动设备有限公司 | Variable-frequency air supply device for rail transit vehicle |
| NL2026117B1 (en) * | 2020-07-22 | 2022-03-28 | Vreugdenhil Holding B V | DEVICE FOR COMPRESSING AIR, SYSTEM AND METHOD FOR THIS |
| CN111871636B (en) * | 2020-08-07 | 2023-07-28 | 中山威习日化科技有限公司 | High-efficiency spraying device |
| CN113041778B (en) * | 2021-03-24 | 2021-12-17 | 江苏恩铭机电科技有限公司 | Low dew point compressed air purifier's adsorption tower |
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