CN110410298B - Air compression treatment system - Google Patents
Air compression treatment system Download PDFInfo
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- CN110410298B CN110410298B CN201910740147.7A CN201910740147A CN110410298B CN 110410298 B CN110410298 B CN 110410298B CN 201910740147 A CN201910740147 A CN 201910740147A CN 110410298 B CN110410298 B CN 110410298B
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- 238000007906 compression Methods 0.000 title claims abstract description 34
- 230000006835 compression Effects 0.000 title claims abstract description 33
- 238000001179 sorption measurement Methods 0.000 claims abstract description 83
- 239000002808 molecular sieve Substances 0.000 claims abstract description 22
- 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 22
- 238000001816 cooling Methods 0.000 claims abstract description 21
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 13
- 239000006096 absorbing agent Substances 0.000 claims description 12
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims description 10
- 239000007809 chemical reaction catalyst Substances 0.000 claims description 8
- 239000003507 refrigerant Substances 0.000 claims description 8
- 238000010438 heat treatment Methods 0.000 claims description 7
- 238000006555 catalytic reaction Methods 0.000 claims description 6
- 239000001569 carbon dioxide Substances 0.000 claims description 5
- 229910002092 carbon dioxide Inorganic materials 0.000 claims description 5
- 230000000087 stabilizing effect Effects 0.000 claims description 5
- 239000004215 Carbon black (E152) Substances 0.000 claims description 4
- 230000003197 catalytic effect Effects 0.000 claims description 4
- 229930195733 hydrocarbon Natural products 0.000 claims description 4
- 150000002430 hydrocarbons Chemical class 0.000 claims description 4
- VUZPPFZMUPKLLV-UHFFFAOYSA-N methane;hydrate Chemical compound C.O VUZPPFZMUPKLLV-UHFFFAOYSA-N 0.000 claims description 4
- 238000007254 oxidation reaction Methods 0.000 claims description 4
- 238000002156 mixing Methods 0.000 claims description 3
- 238000000746 purification Methods 0.000 claims description 2
- 230000009977 dual effect Effects 0.000 claims 1
- 239000002245 particle Substances 0.000 abstract description 23
- 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 8
- 239000012535 impurity Substances 0.000 abstract description 8
- 239000007789 gas Substances 0.000 description 17
- 239000000463 material Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 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
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000005238 degreasing 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
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/02—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
- B01D53/04—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography with stationary adsorbents
- B01D53/0407—Constructional details of adsorbing systems
- B01D53/0423—Beds in columns
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/02—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
- B01D53/04—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography with stationary adsorbents
- B01D53/047—Pressure swing adsorption
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/04—Measures to avoid lubricant contaminating the pumped fluid
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/06—Cooling; Heating; Prevention of freezing
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/16—Filtration; Moisture separation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B41/00—Pumping installations or systems specially adapted for elastic fluids
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2259/00—Type of treatment
- B01D2259/40—Further details for adsorption processes and devices
- B01D2259/40083—Regeneration of adsorbents in processes other than pressure or temperature swing adsorption
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Drying Of Gases (AREA)
- Compressor (AREA)
Abstract
The utility model provides an E0-level air compression treatment system, which 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, a post-treatment oil remover and an air treatment host. 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 filtering oil in the compressed air by a post-treatment oil remover, and finally treating the compressed air reaching ISO8573.1E0-level standard by a molecular sieve adsorption container in an air treatment host.
Description
Technical Field
The utility model relates to the technical field of air compressors, in particular to a medical E0-level 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 ISO8573.1E0 level standard.
Disclosure of Invention
The utility model aims to overcome the defects of the prior art, and provides an air compression treatment system which comprises a box body, wherein 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, a post-treatment oil remover and an air treatment host are sequentially connected in the box body, wherein the post-treatment oil remover removes oil in compressed air; the air treatment host again removes the excess water in the compressed air and lowers the dew point of the compressed air. The air passes through an air filter element to filter out large particle impurities, and enters a two-stage variable-frequency air compressor 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 99.999% 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 filtering oil in the compressed air by a post-treatment oil remover, and finally treating the compressed air reaching ISO8573.1E0-level standard by a molecular sieve absorber in an air treatment host.
In order to achieve the above purpose, the utility model provides an air compression treatment system, which comprises a box body, wherein 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, a post-treatment oil remover 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, the post-treatment host 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 an air inlet passage of the cold dryer through a pipeline, the ultra-precise filter is connected to an air outlet passage of the cold dryer through a pipeline, an air outlet of the ultra-precise filter is connected with a post-treatment oil remover, and an air outlet of the post-treatment oil remover is connected with the air treatment host;
the post-treatment oil remover comprises an oil removal air inlet pipeline, a heat exchanger, a reactor, an oil removal air outlet pipeline and a pressure stabilizing valve arranged on the oil removal air inlet pipeline which are sequentially connected, wherein a catalytic reaction catalyst is arranged in the reactor, and an electric heater is arranged at the top of the reactor; after the compressed air enters a heat exchanger for preheating, the compressed air enters a reactor, and under the action of an electric heater, oil and hydrocarbon undergo catalytic oxidation reaction under the action of a catalytic reaction catalyst to generate carbon dioxide and water;
the deoiling air inlet pipe is communicated with a refrigerant inlet of the heat exchanger, a refrigerant outlet of the heat exchanger is communicated with an air inlet of the reactor, an air outlet of the reactor is communicated with a heating medium inlet of the heat exchanger, and a heating medium outlet of the heat exchanger is connected with the air conveying pipe;
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, so that the molecular sieve absorber is always kept dry, and water in 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 deoiling air inlet pipe is communicated with a refrigerant inlet of the heat exchanger, a refrigerant outlet of the heat exchanger is communicated with an air inlet of the reactor, an air outlet of the reactor is communicated with a heating medium inlet of the heat exchanger, and a heating medium outlet of the heat exchanger is connected with the air conveying pipe.
Further, after the compressed air enters the heat exchanger for preheating, the compressed air enters the reactor for purifying and degreasing, and after the reaction, the compressed air is added with heat energy and recycled to the heat exchanger for preheating the compressed air entering the degreasing air inlet pipe. After the compressed air is deoiled, the compressed air entering the air treatment host is ensured to be clean and oilless.
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 utility model is provided with a post-treatment oil remover, which comprises a heat exchanger and a reactor, wherein oil-containing compressed air is reacted under the action of a reaction catalyst in the reactor to generate water and carbon dioxide after passing through the heat exchanger and the reactor, so that the oil content in the compressed air reaches E0 level standard.
6. 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 E0 level standard of the quality of the compressed air.
7. The utility model adopts the layer-by-layer filtration of the coarse filter, the precise filter and the ultra-precise filter, and is matched with the oil removal and the water removal of a cold dryer, a post-treatment oil remover and an air treatment host machine, so that the granularity, the water content and the oil content in the compressed air all reach E0 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 an air compression processing system according to the present utility model.
FIG. 2 is a schematic diagram of an air compression process flow of an air compression system according to the present utility model.
Fig. 3 is a schematic diagram of the principle of the post-treatment oil remover of the utility model.
FIG. 4 is a schematic diagram of an air handling unit according to the present utility model.
Fig. 5 is a schematic perspective view of an air treatment host according to the present utility model.
FIG. 6 is a schematic view showing the inside of the first adsorption column of the present utility model
Fig. 7 is a three-dimensional perspective view of the aftertreatment oil remover 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; 10. post-treatment oil remover; 101. an oil removal air inlet pipeline; 102. a heat exchanger; 103. a reactor; 104. a deoiling and air-out pipeline; 105. a pressure stabilizing valve.
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, 4 and 5, the present embodiment provides an air compression treatment system, which comprises 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 fine filter 6, a cold dryer 7, an ultra-fine filter 8, a post-treatment oil remover 10 and an air treatment 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, the post-treatment oil remover 10 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, the air outlet of the ultra-precise filter 8 is connected with the post-treatment oil remover 10, and the air outlet of the post-treatment oil remover 10 is connected with the air treatment host 9;
the aftertreatment oil remover 10 comprises an oil removal air inlet pipeline 101, a heat exchanger 102, a reactor 103, an oil removal air outlet pipeline 104 and a pressure stabilizing valve 105 which are sequentially connected, wherein a catalytic reaction catalyst is arranged in the reactor 103, and an electric heater is arranged at the top of the reactor; after the compressed air enters the heat exchanger for preheating, the compressed air enters the reactor, under the action of the electric heater, oil and hydrocarbon undergo catalytic oxidation reaction under the action of the catalytic reaction catalyst to generate carbon dioxide and water, and the oil in the compressed air is sequentially removed, so that the compressed air entering the air treatment host is ensured to be clean and oilless;
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, the first adsorption tower 93 and the second adsorption tower 94 can alternately adsorb and analyze, 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 first-level 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 7, the oil removal air inlet pipe 101 is communicated with a refrigerant inlet of the heat exchanger 102, a refrigerant outlet of the heat exchanger 102 is communicated with an air inlet of the reactor 103, an air outlet of the reactor 103 is communicated with a heat medium inlet of the heat exchanger 102, and a heat medium outlet of the heat exchanger 102 is connected with the air conveying pipe; after the compressed air enters the heat exchanger 102 for preheating, the compressed air enters the reactor 103 for purification and oil removal, heat energy is added to the reacted compressed air, the reacted compressed air is recycled to the heat exchanger 102 for preheating the compressed air entering the oil removal air inlet pipe 101, the preheated compressed air enters the air treatment host 9 through the oil removal air outlet pipe 104, and after the compressed air is deoiled, the compressed air entering the air treatment host is ensured to be clean and oilless.
It should be noted that the pressure stabilizing valve 105 is used to stabilize the pressure of the compressed air in the post-treatment oil remover 10, the electric heater at the top of the reactor 103 provides a suitable reaction temperature for the reactor 103, the compressed air containing oil is at a suitable temperature, and the oil and the hydrocarbon undergo catalytic oxidation reaction under the action of the reaction catalyst to generate carbon dioxide and water, so as to remove the oil in the compressed air.
As a preferred embodiment, referring to fig. 4 and 5, 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. 4 and 5, a throttle ball valve 99 is provided on the first intermediate pipe 9230.
As a preferred embodiment, referring to fig. 4 and 5, 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. 6, 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 the air filter element 2, the primary filtration of large particle impurities in the air enters the double-stage variable frequency air compressor 3, the compression is carried out in the double-stage variable frequency air compressor 3, the compressed air passes through the coarse filter 4, solid or liquid particles with the content of more than 3 mu m in the compressed air are filtered, the content of residual oil is 5ppmw/w, the preliminarily filtered compressed air passes through the post-cooling system 5 and is cooled, the cooled compressed air passes through the precise filter 6, the solid or liquid particles with the content of more than 0.01 mu m in the compressed air and 99.99% of oil mist are filtered, the content of the residual oil is 0.01ppmw/w, then enters a cold dryer 7, the water content in the compressed air entering the cold dryer 7 is reduced, solid or liquid particles with the content of more than 0.01 mu m and 99.999% of oil mist in the compressed air are filtered by an ultra-precise filter 8, so that the content of residual oil is 0.001ppmw/w, finally, the air enters an air treatment host, the air treatment host adopts a pressure swing adsorption principle, the compressed air is deeply dried according to the pressure swing adsorption characteristic of a 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 9 after the deep drying for users.
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.
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. An air compression treatment 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, a post-treatment oil remover and an air treatment host;
the two-stage variable-frequency air compressor, the coarse filter, the cold dryer, the post-treatment host 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 an air inlet passage of the cold dryer through a pipeline, the ultra-precise filter is connected to an air outlet passage of the cold dryer through a pipeline, an air outlet of the ultra-precise filter is connected with a post-treatment oil remover, and an air outlet of the post-treatment oil remover is connected with the air treatment host;
the post-treatment oil remover comprises an oil removal air inlet pipeline, a heat exchanger, a reactor, an oil removal air outlet pipeline and a pressure stabilizing valve arranged on the oil removal air inlet pipeline which are sequentially connected, wherein a catalytic reaction catalyst is arranged in the reactor, and an electric heater is arranged at the top of the reactor; after the compressed air enters a heat exchanger for preheating, the compressed air enters a reactor, and under the action of an electric heater, oil and hydrocarbon undergo catalytic oxidation reaction under the action of a catalytic reaction catalyst to generate carbon dioxide and water;
the deoiling air inlet pipe is communicated with a refrigerant inlet of the heat exchanger, a refrigerant outlet of the heat exchanger is communicated with an air inlet of the reactor, an air outlet of the reactor is communicated with a heating medium inlet of the heat exchanger, and a heating medium outlet of the heat exchanger is connected with an air conveying pipe; the compressed air enters a heat exchanger for preheating and then enters a reactor for purification and oil removal, heat energy is added to the reacted compressed air, the reacted compressed air is recycled to the heat exchanger for preheating the compressed air entering an oil removal air inlet pipe, and the preheated compressed air enters an air treatment host through an oil removal air outlet pipe;
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.
2. An air compression processing system according to claim 1, wherein the air intake pipe includes an air intake pipe provided with an air intake port and an air exhaust pipe provided with an air exhaust port, one end of the air intake pipe is connected to an inlet of the first adsorption tower, the other end of the air exhaust pipe is connected to an inlet of the second adsorption tower, the electric control valve includes a first air intake valve and a second air intake valve as the normally open valves and a first air exhaust valve and a second air exhaust valve provided on the air exhaust pipe, the first air intake valve is located on a pipe section between the first adsorption tower and the air intake port, the second air intake valve is located on a pipe section between the second adsorption tower and the air intake port, one end of the air exhaust pipe is connected to a pipe section between the first air intake valve and the first adsorption tower, the other end of the air exhaust pipe is connected to a pipe section between the second air intake valve and the second adsorption tower, the first air exhaust valve is located on a pipe section between one end of the air exhaust pipe and the air exhaust port, the second air exhaust pipe is located on an air exhaust pipe section between the second air exhaust pipe and the second adsorption tower, the air exhaust valve is connected to an air exhaust pipe is located between the second air exhaust pipe, and the air exhaust pipe is located between the air exhaust valve and the air exhaust pipe is connected to an air exhaust valve, and the air exhaust pipe is located between the air exhaust pipe, and the air exhaust pipe is connected to the air exhaust pipe.
3. An air compression processing system according to claim 2, wherein the air outlet pipe 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.
4. An air compression processing system as recited in claim 2, wherein said first adsorption tower includes a first connecting tube and a plurality of first cylinders, said second adsorption tower includes a second connecting tube and a second cylinder corresponding to said plurality of first cylinders, each end of said plurality of first cylinders having a cannula extending into said first connecting tube, each end of said plurality of second cylinders having a cannula extending into said second connecting tube.
5. The 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.
6. An air compression processing system according to claim 1, wherein the air compressor main unit is a two-stage compression micro-oil screw compressor.
7. An air compression processing system according to 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.
8. The 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.
9. An air compression treatment system according to claim 8, 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.
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| CN110410298B true CN110410298B (en) | 2024-01-16 |
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