CN105485064A - Air compression system and air compression method - Google Patents
Air compression system and air compression method Download PDFInfo
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- CN105485064A CN105485064A CN201510919889.8A CN201510919889A CN105485064A CN 105485064 A CN105485064 A CN 105485064A CN 201510919889 A CN201510919889 A CN 201510919889A CN 105485064 A CN105485064 A CN 105485064A
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- Prior art keywords
- air
- temperature
- compression system
- filter
- air compression
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/70—Suction grids; Strainers; Dust separation; Cleaning
- F04D29/701—Suction grids; Strainers; Dust separation; Cleaning especially adapted for elastic fluid pumps
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/58—Cooling; Heating; Diminishing heat transfer
- F04D29/582—Cooling; Heating; Diminishing heat transfer specially adapted for elastic fluid pumps
- F04D29/584—Cooling; Heating; Diminishing heat transfer specially adapted for elastic fluid pumps cooling or heating the machine
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/70—Suction grids; Strainers; Dust separation; Cleaning
- F04D29/701—Suction grids; Strainers; Dust separation; Cleaning especially adapted for elastic fluid pumps
- F04D29/706—Humidity separation
Abstract
The invention provides an air compression system with a good compression effect, and an air compression method, and relates to the field of air compression. The air compression system provided by the invention comprises an air compressor, wherein the air compression system comprises an air filter connected to the front end of the air compressor; the air filter comprises a housing and a filter assembly; the filter assembly is mounted in an inner cavity of the housing for dividing the inner cavity of the housing into a pure gas cavity and a raw gas cavity; a gas inlet structure communicated with the raw gas cavity is arranged on the housing; and a temperature regulating device for to-be-filtered air is arranged in an area, between the gas inlet structure and the filter assembly, on the gas inlet structure and/or in the raw gas cavity.
Description
Technical field
The present invention relates to a kind of air compression system and the air compression method in air compressing field.
Background technique
Air compressing technology is widely used in the every field such as medicine, chemical industry, weaving oil, machining, has become an indispensable part in production.
A kind of turbine gas compressor front end deduster is disclosed in Chinese invention patent application 201310024020.8, but inventor finds, after air compressor has installed above-mentioned front end deduster composition air compression system, energy consumption in air compression system working procedure is still larger, and air compression system easily breaks down in the process run, and stability is not high.
Inventor is after a series of experiment and research, find above-mentioned air compression system of the prior art, filter assemblies on airfiltering deduster easily blocks, inner at air compression system, except the problem of filter assemblies blocking, in air filter and air compressor, also find that there is the vestige of water stain existence.And above-mentioned such situation problem when the sultry humidity of weather is more serious.
Find after the further research of inventor, cause the main cause of the problems referred to above to be because enter into the water vapour also having air of air compression system with air.And the water vapour in air is easy to separate out on the filter assemblies that is attached in air filter in air filter system, the filtration pressure difference of filter assemblies is caused suddenly to increase, and easily cause filter cake texture on filter assemblies, cause the energy consumption of the filtration work in filter assemblies and blowback work to increase, also make filter assemblies easily break down and cause the stability of system to decline.
Meanwhile, the water vapour in air is separated out and is accelerated air compression system inwall physical damage and chemical corrosion in air compression system, and water vapour is easy after precipitation damages the lubrication system in air compression system.
Further, in air compressor, the molecular weight of water vapour is less than the molecular weight of air, and the service behaviour of water vapor is poor, and in air compressor, water vapour is separated out into the useless power consumption that liquid water causes air compressor and increased by air compressor effect partial pressure increases; If when what air compressor adopted is multistage centrifugal air compressor, perfect condition compresses air, cooling, recompression, the multistage isothermal compression process of lowering the temperature again, but water vapour is easy to along with air carries out phase transformation repeatedly in air compressor in this process, so also just causes air compressor and repeatedly flogging a dead horse.
In addition, inventor also finds, when air temperature is lower, in air with water vapour be very easy to separate out into solid-state ice crystal in air compression system, so both easy ice crystal of enclosing on filter assemblies blocked even mechanical damage filter assemblies, also the easy scratching caused in the running of system system.
So, need at present a kind of air compression system that can solve the problem and air compression method.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of effective, air compression system that energy consumption is low and air compression method.
First in order to realize above-mentioned first object, air compression system provided by the present invention, include air compressor, wherein: described air compression system comprises air compressor front end and is connected with air filter, this air filter comprises shell and filter assemblies, described filter assemblies is installed on shell inner cavity and is divided into pure qi (oxygen) chamber and Primordial Qi chamber, shell is provided with the air intake structure be communicated with Primordial Qi chamber, is provided with the temperature-adjusting device of air to be filtered in the region wherein on described air intake structure and/or in Primordial Qi chamber between described air intake structure and filter assemblies.
Inventor finds, first the impact of performance of air filter comprises the following aspects: the structure stability of filter assemblies in the filter precision of filter assemblies, air filter in air filter.Meanwhile, inventor also finds, in air filter, when humidity of the air is excessive, air filter is easily corroded, and meanwhile, when humidity is excessive, the liquid water that can there is precipitation in air is in atmosphere floating or be attached to around dust in air with the form of the tiny globule.Like this, when air is by filtering material, surface of filter medium is remaining liquid water very easily, and these liquid waters are easy to be formed fluid film on filter opening, and then affect the filtration flux of filter material, cause the filtration pressure difference of filter material to increase, even these liquid waters remained on filter material can also be combined with depending on the dust on filter material, cause dust to block filter opening in surface of filter medium fouling.Bring additional energy so both to the filtration work of air filter, filtration pressure difference increases the stability and the working life that also have influence on air filter, and also reduces the working efficiency of filtering blowback.
Like this, even if further improve technique on the filter precision and structure stability of air filter, be also difficult to promote that the service behaviour of air filter further improves.Even, when the filter precision of air filter is higher, filter opening in air filter on filter assemblies is more prone to the fluid film after being separated out by water vapour and blocks, thus the filtration pressure difference causing air filter increases dramatically, even cause filter assemblies pressure in air filter excessive and filter assemblies is damaged.
In view of this, in air compression system in the present invention, include one and there is thermostatic integrated function air filter, and this air filter is connected to the front end of air compressor, thus enter into the air of air compression system, first need while carrying out filtering, to carry out temperature adjustment through this air filter.Further, the temperature-adjusting device in described air filter is positioned at air intake structure position and/or the Primordial Qi chamber of air filter, thus can guarantee that first air was carrying out temperature adjustment by this temperature-adjusting device before filter assemblies.
It should be noted that herein, between the temperature of air and the humidity of air, there is certain contact in atmosphere, under standard atmospheric pressure (0.1013MPa), in the saturated moist air of 50 DEG C, steam partial pressure is 0.0123MPa, and saturated volume water content is 83.2gm
-3, in the saturated moist air of 20 DEG C, steam partial pressure is 0.0023MPa, and saturated volume water content is 30.3gm
-3, in the saturated moist air of-10 DEG C, steam partial pressure is 0.00026MPa, and saturated volume water content is 2.2gm
-3.So, mutual association is inherently there is between the temperature of gas and saturated humidity ratio, in practical operation use, can by reach to regulate and control the humidity of air to the control of temperature simultaneously, thus realize gas space filter the many-sided performance of gas is adjusted.
So can find out, in above-mentioned air compression system, be positioned in air filter filter element front end be provided with temperature-adjusting device can by the air that enters into air compression system by filter assemblies and air compressor advance trip temperature, thus, by the air temperature control by filter assemblies and air compressor in certain scope, just can guarantee that the saturated volume water content of air is in certain scope, and then the volume water content of the air can guaranteed by filtering assembly and air compressor controls in certain scope, the humidity of the air entering air compression system is controlled by the control realization to air temperature.
Simultaneously, it is to be noted in the method that humidity of the air is regulated, technology conventional at present also has the water vapour in the adsorption method removal air adopting physics or chemistry, but adsorption method needs to regularly replace sorbent, add the operating cost of air compression system, and can heat of adsorption be produced in the process of absorption, thus increase the temperature of air compression system air further.
And after the temperature of air in air compression system increases, microcosmic taking the form of the corresponding increase of the intermolecular mean kinetic energy of air gas, the density of air reduces simultaneously.Under standard atmospheric pressure (0.1013MPa), when air temperature is-3.16 DEG C, the density of air is 1.3082kg/m
3, when air temperature is 6.85 DEG C, air density is 1.2614kg/m
3, when air temperature is 16.85 DEG C, air density is 1.2177kg/m
3, when air temperature is 26.85 DEG C, air density is 1.1769kg/m
3, when air temperature is 36.85 DEG C, air density is 1.1389kg/m
3.And exactly for air compression system, be need the spacing between pressurized air gas, delivery air compression potential energy, between the gas molecule of air, mean kinetic energy is larger, and the energy consumption of air compressor when being compressed to same pressure is then also larger.
So no matter above-mentioned adsorption method reduces humidity of the air is the replacing of sorbent or the heat of adsorption of generation comprehensively largely adds it is make the energy consumption of air compression system increase.
Further, by being arranged on the temperature-adjusting device in air filter, just can be lowered into the temperature of air compression system air, like this, the density of air being increased, intermolecular mean kinetic energy reduces, and is conducive to air compressing in air compression system.
It is to be noted in addition, the air filter that air compressor front end connects has integration cooling dedusting function, make the dust content of air entering into air compressor reduce like this, avoid dust in air in air compressor, damage lubrication system, blocking air channel, fouling on blower fan.Dedusting function energy high degree reduces energy consumption.Meanwhile, the air entering into air compressor is carried out control wet low energy consumption and the efficiently output that also can guarantee air compression system further.
Here it should be noted that, the humidity being lowered into air in air compressor effectively can reduce the energy consumption of air compressor, increases the delivery efficiency of air compressor simultaneously, and is all the beneficial effect with highly significant for the working stability of air compressor and operating life.First, the molecular weight of water vapour is less than the molecular weight of dry air, and in air compressing technology, under same pressure, the ability to work of water vapour is less than dry air; Secondly, water vapour in air forms liquid and water droplet after precipitation in a device, even when operating temperature can condense into solid-state ice crystal lower than water vapour during water vapour freezing point at this pressure, in the process of equipment operation, very easily cause the physical abrasion to equipment like this, also largely strengthen the chemical corrosion to equipment; Meanwhile, wet air is separated out and also can be caused very large destruction to water for the lubrication system in equipment; Certainly, also include wet air in air filter and can also cause the impact of filter material in filter assemblies.
If in compound air compressor, need to compress air, then lower the temperature, the multistage compression work of recompression, water vapour is easy to along with air carries out phase transformation repeatedly in air compressor in this process, so also just causes air compressor and is repeatedly flogging a dead horse.
Supplement on the basis of the above, considering that air is after entering into air compression system, due in production environment, is there is not absolutely dry air in theory, even if lower than in the environment of zero degrees celsius, also can there is a certain amount of water vapour in air.So carrying out in pressurization compression work through air compressor, the pressure increase of air, steam partial pressure in corresponding air increases, when this temperature reach or lower than water vapour freezing point temperature at this pressure time, water vapour in air can condense into solid-state ice crystal in a device, and solid-state ice crystal is larger than liquid water droplets for the destructiveness of equipment.
So consider, air filter system in the present invention, the temperature of air not reduces by the temperature-adjusting device of employing simply, but need the temperature entering into air filter to control in a relatively suitable scope.
In addition, it is to be noted, in above-mentioned air air filter, in order to realize the compact structure of air air filter, in air filter, temperature-adjusting device can be arranged on the position of air intake structure, the air intake structure at the temperature-adjusting device wherein said here, can be a kind of open air intake structure, the position that the finger of broad sense is communicated with the Primordial Qi chamber of air filter; Also can refer to that temperature-adjusting device is positioned at a relatively specific air intake structure, such as, in the inwall of suction tude.Certainly, this air filter can directly be arranged in Primordial Qi chamber by this air air filter.
Can find out in sum, air compression system in the present invention can carry out multi-functional process to the multiple parameters of air, and, be combined into organic structure between each assembly, functionally can reach and promote each other, and structure is simple, connect and tightly urge.Can guarantee that the General of air compression system reaches the beneficial effect that energy consumption is low, output effect is good.
Further, the shell of described air filter forms tubular construction, and the sidewall of this tubular construction is provided with the suction port as described air intake structure, described temperature-adjusting device correspondence is installed on air intake structure place.The air filter being connected to air compressor front end is in the present invention a kind of tubular construction of solid, like this this tubular construction is necessarily provided with the face standing on side, and on the sidewall of this tubular construction, air intake structure is installed, thus to realize in air filter system air filter and air compressor between the two linkage structure tightly urge, and what realize is that air carries out temperature control and filtering integral process when entering air filter simultaneously.The basis of said structure is optimized, further can be provided with discharge structure in tubular construction, like this can so that condensed water be discharged from tubular construction.
Meanwhile, on the basis of above-mentioned air compression system, described air intake structure is interrupted around all bodies of tubular construction or offers continuously, then filter assemblies is enclosed in tubular alternating temperature band wherein by described temperature-adjusting device formation.The all body of air intake structure around tubular construction is interrupted or offers continuously, like this, achieves the air intake structure having a large face on shell, both added air inflow, have positive role to the thermostatic working efficiency being positioned at air intake structure simultaneously.Described air intake structure around shell tubular construction continuously or be interrupted and offer air intake structure and can increase air intake structure area, according to Flow continuity equation in hydrokinematics, in constant flow, the flow in stream is equal, and the speed of fluid is then inversely proportional to the sectional area of flow area.So, in above-mentioned air filter, air intake structure is provided be centered around on tubular construction and increases air intake structure area, effectively can reduce air by instantaneous velocity during air intake structure, so just make air carry out heat exchange more fully between air intake structure and temperature-adjusting device.Obviously, the thermostatic temperature that said structure can improve air intake structure effectively regulates efficiency, improves the Energy Efficiency Ratio of air filter system.
Preferably, described temperature-adjusting device adopts surface cooler, and this surface cooler is around tubular construction week body and be in communication with the outside and passed into heat-conducting medium.Inventor finds, adopts surface cooler effectively can improve the Energy Efficiency Ratio of system as temperature-adjusting device in air filter system, and adopt surface cooler to carry out temperature control, its operating power consumption is lower, and can have good temperature control effect.And inventor also finds through practice, water at atmospheric pressure circulation is adopted to have higher Energy Efficiency Ratio than adopting pressure solution as heat-conducting medium as heat-conducting medium.
Preferably, described air intake structure is centered around tubular construction on all bodies of lower end.Be like this in order to realize when air through air intake structure by after temperature-adjusting device effect, the temperature of air declines, condensation of water in air, air intake structure is arranged on tubular construction on all bodies of lower end easily condensed water to be discharged tubular construction.
Further, described chimney filter and orifice plate joint are provided with annular sealing strip, and chimney filter comprises support and is attached to the filter material of windward side on this support simultaneously.And as preferably, described chimney filter comprises the filter material be made up of high density porous polyethylene support and the expanded PTFE filtration membrane that is adhering closely to high density porous polyethylene supporting body surface; The hole density of described expanded PTFE filtration membrane is 5 × 10
8individual/cm
2to 30 × 10
8individual/cm
2.
First, for air filter, the structure stability of filter assemblies and filter precision all play very crucial impact to the performance of air filter, and the strainability of air filter also directly affects energy consumption and the work output effect of air compression system.
So the filter assemblies in above-mentioned air compression system, first in the structure of filter assemblies, filter assemblies is equiped with orifice plate, is arranged on by chimney filter on orifice plate, like this can so that the installation of filter assemblies, maintenance and dismounting.And orifice plate here can be provided with some chimney filters, to increase the filter area of filter assemblies, also can avoid filter assemblies after there is breakage, need whole replacing simultaneously.Chimney filter in filter assemblies is positioned at Primordial Qi chamber thus chimney filter can be made more close to the temperature-adjusting device being arranged on air intake structure.
Adopt filter material to be attached to the windward side of support in above-mentioned filter assemblies simultaneously.Described windward side refers in filtration work, and the one side that air-flow direction to be filtered first touches on chimney filter is referred to as windward side, otherwise is lee face.To the windward side being attached to support be filtered, thus realize the support of support to filter material, effectively can strengthen the strength and stability of chimney filter in filter assemblies like this, more stable with the work realizing filter assemblies.And adopt annular sealing strip to be connected and sealed in the joint of above-mentioned chimney filter and orifice plate, effectively can strengthen the join strength between chimney filter and orifice like this.
Second performance (comprising precision, air penetrability, the strength of materials, toughness etc.) preferred of the filtering material of filter assemblies, wherein, chimney filter comprises the filter material be made up of high density porous polyethylene support and the expanded PTFE filtration membrane that is adhering closely to high density porous polyethylene supporting body surface; The hole density of described expanded PTFE filtration membrane is 5 × 10
8individual/cm
2to 30 × 10
8individual/cm
2.
Inventor is from the angle of practical application, in order to ensure compared with under the prerequisite of high filtering precision, adopt and produce larger filtration flux with less filter pressure, the specific embodiment of the present invention also further hole density by expanded PTFE filtration membrane is set as 5 × 10
8individual/cm
2to 30 × 10
8individual/cm
2.By the hole density of expanded PTFE filtration membrane is set in above-mentioned scope, the degree that the filter efficiency of expanded PTFE filtration membrane reaches more satisfactory can be made.Test finds, when the porosity ratio of high density porous polyethylene support is all 30%, when the hole density of expanded PTFE filtration membrane is 15 × 10
8individual/cm
2, when filtration pressure difference equals 190Pa, filtration flux is 2m
3/ m
2min.When maintenance filtration flux is constant, the hole density of expanded PTFE filtration membrane improved further, filtration pressure difference then can reduce.On the contrary, when maintenance filtration flux is constant, the hole density of expanded PTFE filtration membrane reduced, filtration pressure difference then can raise.When hole, density is reduced to 5 × 10
8individual/cm
2time, filtration pressure difference is elevated to about 500Pa, close to centrifugal turbine air compressor institute capacity limit, in the present embodiment, therefore is 5 × 10 by the hole density limitations of expanded PTFE filtration membrane
8individual/cm
2above.According to the preparation process of current expanded PTFE filtration membrane, be 30 × 10 by the hole density limitations of expanded PTFE filtration membrane
8individual/cm
2below.Further, in the present embodiment, preferably the hole density of expanded PTFE filtration membrane is set as 10 × 10
8individual/cm
2to 25 × 10
8individual/cm
2, meanwhile, in the present embodiment, the porosity ratio of high density porous polyethylene support can be set between 25% to 70%, preferably between 30% to 60%.
And, inventor finds, in reality test, described expanded PTFE filtration membrane treats the eliminating rate of the dust of particle diameter >=0.5 in filtering gas μm more than 99%, also can have higher air penetrability, and test air compressor and do not find scale formation in operation after 1 year.
In sum, air compression system in the present invention can carry out multi-functional process to the multiple parameters of air, and, be combined into organic structure between each assembly, functionally can reach and promote each other, and structure is simple, connect and tightly urge.Can guarantee that the General of air compression system reaches the beneficial effect that energy consumption is low, output effect is good.
Secondly, in order to realize above-mentioned second object, air compression method provided by the present invention for by air before passing into air compressor first by air filter, wherein:
Air compression method, includes air compression system, and described air compression system comprises air compressor front end and is connected with temperature-adjusting device, and its step is:
To pass into the air of air compression system first by temperature-adjusting device, wherein temperature-adjusting device includes temperature lift mode and temperature reduction pattern, the air temperature passing into air compression system is increased to 0 DEG C ~ 10 DEG C; Or the air temperature passing into air compression system is reduced to 10 DEG C ~ 28 DEG C.
In conjunction with above to the explanation of air compression system, can find out in above-mentioned air compression method, in air filter, temperature-adjusting device front end is provided with temperature detection element and is connected with control system, carries out temperature detection like this to the air entering air filter; Can guarantee that air will cause the power consumption of air compressor to increase because kinetic energy between gas molecule is excessive in air compressor like this, the air temperature simultaneously controlling to enter into air compression system also can guarantee that the saturated volume water content of air is lower than certain numerical value, like this, also achieve the humidity regulation in air by regulating the temperature of air.But simultaneously also it is contemplated that, although the air temperature entering into air compressor is lower, air density is larger, its saturated volume water content is lower, but, even if below the freezing point temperature of water vapour, still a certain amount of water vapour can be there is in air, these water vapour are in air compressor, partial pressure still there will be the situation of precipitation after increasing, and in the working environment of air compressor, (pressure is larger lower than during certain numerical value for temperature, the freezing point temperature of water is higher), water vapour in wet air can directly separate out into solid-state ice crystal, now very large during the damageability of this solid-state ice crystal for air compression system, so, inventor considers this, also need to guarantee that the air temperature passed in air compressor can not be too low, in order to avoid separate out solid-state ice crystal and cause the damage to system and equipment under air compressor pressure, so air compression system can be caused to occur work fluctuation of service, and reduce the operating life of air compression system.
In the above-mentioned methods, by carrying out temperature adjustment in air compression system to the air entering into air compressor, wherein said be adjusted to a kind of selecting type specifically raise press down or be reduction pattern.Thus by above-mentioned air compression method, first the air temperature entering into air compression system is increased to 0 DEG C ~ 10 DEG C; Or the air temperature passing into air compression system is reduced to 10 DEG C ~ 28 DEG C.Guarantee to avoid occurring impacting air compressing steam in air in air compressing working procedure, this impact includes water vapour in air and separates out the phenomenon that liquid or solid water blocking air compression system, even air compression system lost efficacy, and the energy consumption causing air compression system in air compressing work increases.Above-mentioned air compression method is the air compression method that a kind of working efficiency is high, energy consumption is lower.
Further:
When the air temperature passing into air compression system is below 0 DEG C, air is increased to 0 DEG C ~ 10 DEG C by temperature-adjusting device;
When the air temperature passing into air compression system is more than 28 DEG C, air is reduced to 10 DEG C ~ 28 DEG C by temperature-adjusting device;
When the air temperature passing into air compression system is 0 DEG C ~ 28 DEG C, temperature-adjusting device does not adjust air temperature.
Above-mentioned is one preferred controlling method in air compression method, it should be noted that, in the above-mentioned methods, relate to two kinds of temperature and control, one raises air, and another kind is lowered the temperature to air.
From learning above, when air temperature is higher, the water vapour content that can dissolve in air is higher, as long as the temperature of air is reduced, just can reduce the saturated volume water content of water vapor in air, namely air temperature reduces, even if also only can dissolve compared with water vapour less during temperature height at saturation condition in air.But when temperature is controlled too low, be first that thermostatic energy consumption will increase, be secondly that the temperature of air controls too low, easily can occur that water vapor in air is separated out into solid-state ice crystal and caused damage to air compression system.
Further preferably:
When the air temperature passing into air compression system is below 5 DEG C, air is increased to 5 DEG C ~ 10 DEG C by temperature-adjusting device;
When the air temperature passing into air compression system is more than 25 DEG C, air is reduced to 20 DEG C ~ 25 DEG C by temperature-adjusting device;
When the air temperature passing into air compression system is 5 DEG C ~ 25 DEG C, temperature-adjusting device does not adjust air temperature.
This is that inventor is finding that after Practical experiments the air temperature by passing into air compression system raises or is reduced in said temperature interval range, both can guarantee that entering into air compression system carries out the humidity of the air of air compressing in comparatively safe scope, can guarantee that again the energy consumption of above-mentioned air compression method is lower.
Meanwhile, can further optimize based on the above method:
Humidity detecting is carried out, when this moisture detection device detects that in air, volume water content is 27.2gm to passing into the air carrying out air compressing in air compression system
-3time above, air is reduced to less than 28 DEG C by temperature-adjusting device; Thus when detecting that in air, humidity is too high, carry out temperature adjustment by temperature-adjusting device to entering into the air that air compression system compresses.It should be noted that, because the humidity of air can be represented by multiple presentation, so the volume water content of measurement described herein is 27.2gm
-3can be undertaken converting by other presentatioies of measurement humidity of the air.
Simultaneously by air by after temperature control component by filter assemblies, described filter assemblies treats the dust eliminating rate of particle diameter >=0.5 in filtered air μm more than 99%.By such controlling method; thus guarantee that the dust content entering into air compressor is extremely low; can effectively in air compression system; element particularly in air compressor is protected, and avoids dust in air compression system, cause air channel blocking, blade structure, bearing damage and lubrication system to break down.Detect through inventor, above-mentioned air compression method can guarantee air compression system at least in the phenomenon continuing also to there will not be without the need to dismantling deashing in the continuous use of a year system works instability and system failure.Like this, effectively can reduce the energy consumption of air compressing, also can guarantee the stability of system in air compressing process.
Further, this temperature-adjusting device adopts surface cooler, and wherein surface cooler is in communication with the outside and is connected with heat-conducting medium, and wherein heat-conducting medium flows to air is cross-flow and/or adverse current by the flow direction of surface cooler.
Inventor also finds, adopts surface cooler to carry out temperature as above-mentioned temperature-adjusting device and controls to be a kind of low, the effective method of energy consumption, the circulating water passed in heat conductive tube or heat-conducting plate, and by control system controlled circulation flow velocity; Such heat exchange mode is a kind of lower-cost heat exchange mode, first can by changing the temperature of circulating water if need to change heat transfer effect, second can by changing the flow velocity of circulating water in heat conductive tube or heat-conducting plate, three can be the area, quantity, cross-section of pipeline shape etc. that are coiled the surface cooler made by change heat conductive tube or heat-conducting plate.These modes operate convenient and simple, have lower cost, also have stronger operability simultaneously.
Can find out in sum, in above-mentioned air compression method, be that a kind of energy ezpenditure is lower, is again to make having comprehensive compression effectiveness preferably to the compression work of air.
Below in conjunction with Figure of description and embodiment, the air compression system in the present invention and pneumatics method are further elaborated.
Accompanying drawing explanation
Fig. 1 is the air compression system in the present invention.
Fig. 2 is the air filter schematic diagram in air compression system.
Fig. 3 is the schematic top plan view of air filter.
Fig. 4 is the partial enlarged drawing of surface cooler.
Fig. 5 is filter element enlarged diagram.
Fig. 6 is surface cooler side-looking partial sectional view.
In Figure of description, the corresponding relation of each label and structure is followed successively by: 11 is air compressor, and 12 is the cooler in air compressor, 13 is gas tank, and 14 is silencing apparatus, and 2 is air filter, 21 is shell, and 211 is Primordial Qi chamber, and 212 is pure qi (oxygen) chamber, 213 is air intake structure, and 22 is filter assemblies, and 221 is orifice plate, 222 is chimney filter, and 222a is expanded PTFE filtration membrane, and 222b is high density porous polyethylene support, 223 is annular sealing strip, and 231 is surface cooler.
Embodiment
Air compression system as shown in Figure 1, includes air compressor plant, is connected with air filter 2 at air compressor plant air intake, is connected with temperature-adjusting device at air filter 2 air intake.Wherein air compressor plant includes air compressor 11, cooler 12, gas tank 13, silencing apparatus 14.Wherein, in air compressor plant, air filter 2 is connected with at air compressor 11 air intake, enter into after air compressor 11 compresses at air, air enters gas tank 13 after the reduction of supercooler 12, and be connected with air compressor 11, also have the silencing apparatus 14 in parallel with gas tank 13, this silencing apparatus 14 is for the toxic emission of air compressor plant.In the present embodiment, described air compressor 11 selects centrifugal turbine air compressor 11, centrifugal turbine air compressor 11 economical, and can realize the multistage compression to air, and energy consumption is lower, good compression property.
As shown in Figure 2, in air compressor 11 front end, air intake is connected with air filter 2, and in the present embodiment, this air filter 2 includes shell 21 and filter assemblies 22.Shell 21 is provided with air intake structure 213 and relief opening, shell 21 is tubular construction, and be provided with cavity body structure in this tubular construction, filter assemblies 22 is provided with in this cavity body structure, this filter assemblies 22 includes chimney filter 222, this chimney filter 222 is one end open, the other end is closed, and the cavity body structure being wherein arranged in above-mentioned tubular construction is provided with orifice plate 221, and this orifice plate 221 is provided with some vents.Above-mentioned chimney filter 222 upper open end matches with orifice plate 221 upper vent hole, and be provided with in chimney filter 222 and orifice plate 221 joint and be also provided with the surface that orifice plate 221 carries out contacting the annular sealing strip 223 simultaneously surrounding all chimney filters 222 simultaneously, realize the integral sealing to orifice plate 221 and chimney filter 222.In air filter 2, coordinated with the chimney filter 222 be arranged on orifice plate 221 by orifice plate 221, the cavity body structure in the shell 21 of air filter 2 is divided into Primordial Qi chamber 211 and pure qi (oxygen) chamber 212.Simultaneously, in chimney filter 222, include high density porous polyethylene support 222b, wherein on high density porous polyethylene support 222b windward side, be attached with expanded PTFE filtration membrane 222a, so-called windward side refers to the one side of meeting to filtered air, and namely expanded PTFE filtration membrane 222a is positioned at Primordial Qi chamber 211.
The filtering material used in the above-mentioned embodiment of the present invention, that the mode that expanded PTFE filtration membrane 222a is covered by heat is adhering closely to (this film mulching method is prior art) on high density porous polyethylene support 222b, because expanded PTFE filtration membrane 222a and high density porous polyethylene support 222b is close polymer, therefore both associativities are very good.As seen in Figure 5, in the filtering material be made up of high density porous polyethylene support 222b and the expanded PTFE filtration membrane 222a that is adhering closely to high density porous polyethylene support 222b surface, the aperture of the expanded PTFE filtration membrane 222a of windward side is far smaller than the high density porous polyethylene support 222b of lee face, therefore, high density porous polyethylene support 222b only plays a supportive role, and does not participate in filtering.So-called expanded PTFE filtration membrane 222a is by defining fibrous blind hole after tensile buckling on polytetrafluoroethylmaterial material.Wherein, can control the hole density of expanded PTFE filtration membrane 222a according to the amount of tension of polytetrafluoroethylmaterial material.The specific embodiment of the present invention requires expanded PTFE filtration membrane 222a to reach to treat the filter precision of eliminating rate more than 99% of the dust of particle diameter >=0.1 in filtering gas μm.Found by actual verification, under the filter precision of the eliminating rate of dust treating particle diameter >=0.1 in filtering gas μm more than 99%, air compressor 11 does not find scale formation in operation after 1 year.In addition, from the angle of practical application, in order to ensure compared with under the prerequisite of high filtering precision, produce larger filtration flux with less filter pressure, the specific embodiment of the present invention also further hole density by expanded PTFE filtration membrane 222a is being set as 5 × 10
8individual/cm
2to 30 × 10
8individual/cm
2.By the hole density of expanded PTFE filtration membrane 222a is set in above-mentioned scope, the filter efficiency of expanded PTFE filtration membrane 222a can be made to reach more satisfactory degree.Test finds, when the porosity ratio of high density porous polyethylene support 222b is all 30%, when the hole density of expanded PTFE filtration membrane 222a is 15 × 10
8individual/cm
2, when filtration pressure difference equals 190Pa, filtration flux is 2m
3/ m
2min.When maintenance filtration flux is constant, the hole density of expanded PTFE filtration membrane 222a improved further, filtration pressure difference then can reduce.On the contrary, when maintenance filtration flux is constant, the hole density of expanded PTFE filtration membrane 222a reduced, filtration pressure difference then can raise.When hole, density is reduced to 5 × 10
8individual/cm
2time, filtration pressure difference is elevated to about 500Pa, close to centrifugal turbine air compressor 11 capacity limits, in the present embodiment, therefore is 5 × 10 by the hole density limitations of expanded PTFE filtration membrane 222a
8individual/cm
2above.According to the preparation process of current expanded PTFE filtration membrane 222a, be 30 × 10 by the hole density limitations of expanded PTFE filtration membrane 222a
8individual/cm
2below.Further, in the present embodiment, preferably the hole density of expanded PTFE filtration membrane 222a is set as 10 × 10
8individual/cm
2to 25 × 10
8individual/cm
2, meanwhile, in the present embodiment, the porosity ratio of high density porous polyethylene support 222b can be set between 25% to 70%, preferably between 30% to 60%.
Now, can guarantee that chimney filter 222 treats the eliminating rate of the dust of particle diameter >=0.5 in filtered air μm more than 99%, even can reach the eliminating rate of the dust treating particle diameter >=0.5 in filtered air μm more than 99%, and there is good air penetrability.
And, chimney filter 222 in the present embodiment in air filter 2, not only itself there is very high filter precision, and, after tested, at least can not because repeated deformation occurs damaged under the frequent filtration blowback switch operating state more than a year, under such circumstances, can guarantee be air compression system in the present embodiment can not because of the filter precision of air filter 2 or filter material damaged and cause its dust to enter into the work of air compressor 11 to air compressor 11 impacting.And, can guarantee that air filter 2 has lower energy consumption while air filter 2 itself has highi degree of accuracy and high air penetrability.
Meanwhile, more as shown in Figure 2, the air filter 2 being connected to air compressor 11 front end in the present embodiment in air compression system also includes the surface cooler 231 being arranged on air intake structure 213 place.In the present embodiment, as shown in Figure 4, this surface cooler 231 adopts heat conductive tube to coil and makes, and is in communication with the outside in this heat conductive tube, and heat conductive tube Inner eycle is connected with the water at atmospheric pressure of 12 DEG C ~ 18 DEG C as heat-conducting medium.Surface cooler 231 is herein exactly above-mentioned thermostatic a kind of concrete form.And above-mentioned surface cooler 231 is connected with control system, by the output terminal of control system, the water temperature supplied water in heat conductive tube in surface cooler 231, flow velocity are controlled, and the input end of described control system is connected with temperature detection element and moisture detection device, described temperature detection element and moisture detection device are arranged on air intake structure 213 front end.
As shown in Figure 4, repeatedly being coiled by heat conductive tube that surface cooler 231 in the present embodiment adopts is made, certainly, in order to realize the better heat exchange of surface cooler 231, can adopt and between heat conductive tube, to offer aperture or add laciniation on the tube wall of heat conductive tube, also can be provided with some surface coolers 231 parallel to each other on heat conductive tube, these structures further can strengthen the heat exchange efficacy of surface cooler 231.
Again shown in composition graphs 3, in above-mentioned air filter, the surrounding of filter assemblies 22 is provided with heat conductive tube and coils the surface cooler 231 made, in by surface cooler 231 filter assemblies 22 being centered around in the mode of similar tubular.And this surface cooler 231 is arranged on air intake structure 213, all air being entered into filter assemblies 22 by air intake structure 213, all will inevitably form heat exchange with it by this surface cooler 231.
Simultaneously, composition graphs 2 can be found out, in the present embodiment, the shell 21 of air air filter be one have certain altitude and in have the tubular construction of cavity, the air outlet being wherein provided with air air filter in the upper end being positioned at this tubular construction is connected with air compressor 11, be positioned at the air outlet lower end position of this tubular construction, orifice plate 221 is installed, this orifice plate 221 is provided with some chimney filters 222 by fastening piece, these chimney filters 222 extend certain length vertically downward, and major part has extended to surface cooler 231 same plane in chimney filter 222, and make chimney filter 222 major part surround by surface cooler 231, result in formation of chimney filter 222 and surface cooler 231 and there is distance to a certain extent closely.
In the present embodiment, above-mentioned each face of tubular construction surrounding is provided with monolithic or the some surface coolers be parallel to each other 231, and the surface cooler 231 be parallel to each other forms the vertical plane of tubular construction.In surface cooler 231, pass into the water that temperature is 12 DEG C ~ 18 DEG C, the heat conductive tube forming surface cooler 231 is connected inside with the external world and forms water circulation.And the heat conductive tube of above-mentioned formation surface cooler 231 leaves gap each other, pass into the identical air of pneumatics from this gap by entering into the air filter 2 in tubular construction.
Again as shown in Figure 6, be positioned at air intake structure 213 place of shell 21, described air intake structure 213 is around on all body sidewalls of above-mentioned tubular construction, this air intake structure 213 is comprise being arranged on shell 21 vertical direction and the suction port of some array arrangements in substantially horizontal, and this suction port is downward-sloping and have the eaves body of rain-proof dust-proof.Be positioned at air intake structure 213 place, the heat conductive tube coiling on surface cooler 231 is had to install, wherein surface cooler 231 including heat conductive tube is coiled in conplane sheet structure, heat conductive tube in this sheet structure leaves pipeline gap each other to be passed through for air, described sheet structure is vertically arranged on air intake structure 213 place near the position of filter assemblies 22, the sheet structure composition surface cooler 231 that multi-disc is parallel to each other is provided with at air intake structure 213 place, and the heat conductive tube between above-mentioned sheet structure parallel to each other forms certain dislocation in the horizontal direction, like this, can make fully to be contacted with between heat conductive tube by the air of surface cooler 231.Like this, after air enters into air filter 2 from air intake structure 213, define alternating temperature band between the heat conductive tube in above-mentioned surface cooler 231, air achieves the adjustment of temperature and humidity in this alternating temperature band.In said structure and composition graphs 3 can find out, air intake structure 213 and surface cooler 231 are enclosed on tubular construction sidewall to arrange, then above-mentioned alternating temperature band is also just formed as the tubular alternating temperature band be enclosed in by filter assemblies 22 wherein.
Apply the air compression method of above-mentioned air compression system, temperature detection element and moisture detection device is had in the arranged outside of above-mentioned surface cooler 231, to be used for detecting the temperature and humidity of air before passing into surface cooler 231, by temperature detection element and moisture detection device, the data detected are transported to control system again, control system exports control inputs to parameters such as the water temperature in heat conductive tube, flow velocitys.
In the present embodiment, the air compression method applying above-mentioned air compression system includes air first successively by temperature-adjusting device and air filter 2 before passing into air compressor 11, and consider from the angle of observable index, the controlling method choosing optimization is:
When described temperature detection element detects that air temperature is below 5 DEG C, air is increased to 5 DEG C ~ 10 DEG C by temperature-adjusting device; When described temperature detection element detects that air temperature is more than 25 DEG C, air is reduced to 20 DEG C ~ 25 DEG C by temperature-adjusting device; When described temperature detection element detects that air temperature is 5 DEG C ~ 25 DEG C, temperature-adjusting device does not adjust air temperature.
Simultaneously in above-mentioned air compression method, by pass into air compression system air by surface cooler 231 time, water in heat conductive tube in surface cooler 231 is passed into from the position of surface cooler 231 near top, water flow direction in such heat conductive tube is all the time in surface cooler 231 place plane, vertical for the air passing into air compression system surface cooler 231 is passed into, makes the water in surface cooler 231 in heat conductive tube and form cross-flow by the air of surface cooler 231.
Like this, be passed in air filter 2 by the air after passing into surface cooler 231, be passed in air compressor 11 after air filter 2 is filtered and compress, after cooler 12 reduces, the pressurized air of discharge enters gas tank 13, and tail gas is then discharged after silencing apparatus 14.
Claims (10)
1. air compression system, include air compressor (11), it is characterized in that: described air compression system comprises air compressor (11) front end and is connected with air filter (2), this air filter (2) comprises shell (21) and filter assemblies (22), described filter assemblies (22) is installed on shell (21) inner chamber and is divided into pure qi (oxygen) chamber (212) and Primordial Qi chamber (211), shell (21) is provided with the air intake structure (213) be communicated with Primordial Qi chamber (211), wherein on described air intake structure (213) and/or in Primordial Qi chamber (211), the region be positioned between described air intake structure (213) and filter assemblies (22) is provided with the temperature-adjusting device of air to be filtered.
2. air compression system as claimed in claim 1, it is characterized in that: the shell (21) of described air filter (2) forms tubular construction, the sidewall of this tubular construction is provided with the suction port as described air intake structure (213), described temperature-adjusting device correspondence is installed on air intake structure (213) place.
3. air compression system as claimed in claim 2, it is characterized in that: described air intake structure (213) is interrupted around all bodies of tubular construction or offers continuously, then filter assemblies (22) is enclosed in tubular alternating temperature band wherein by described temperature-adjusting device formation.
4. air compression system as claimed in claim 3, is characterized in that: described temperature-adjusting device adopts surface cooler (231), and this surface cooler (231) is around tubular construction week body and be in communication with the outside and passed into heat-conducting medium.
5. air compression system as claimed in claim 3, is characterized in that: described air intake structure (213) is centered around tubular construction on all bodies of lower end.
6. air compression system as claimed in claim 1, it is characterized in that: described filter assemblies (22) comprises some chimney filters (222), this chimney filter (222) is installed on the orifice plate (221) that is connected with shell (21) inwall.
7. air compression system as claimed in claim 6, is characterized in that: described chimney filter (222) comprises the filter material be made up of high density porous polyethylene support (222b) and the expanded PTFE filtration membrane (222a) that is adhering closely to high density porous polyethylene support (222b) surface; The hole density of described expanded PTFE filtration membrane (222a) is 5 × 10
8individual/cm
2to 30 × 10
8individual/cm
2.
8. air compression method, includes air compression system, and described air compression system comprises air compressor (11) front end and is connected with temperature-adjusting device, and its step is:
To pass into the air of air compression system first by temperature-adjusting device, wherein temperature-adjusting device includes temperature lift mode and temperature reduction pattern, the air temperature passing into air compression system is increased to 0 DEG C ~ 10 DEG C; Or the air temperature passing into air compression system is reduced to 10 DEG C ~ 28 DEG C.
9. air compression method as claimed in claim 8, is characterized in that:
When the air temperature passing into air compression system is below 0 DEG C, air is increased to 0 DEG C ~ 10 DEG C by temperature-adjusting device;
When the air temperature passing into air compression system is more than 28 DEG C, air is reduced to 10 DEG C ~ 28 DEG C by temperature-adjusting device;
When the air temperature passing into air compression system is 0 DEG C ~ 28 DEG C, temperature-adjusting device does not adjust air temperature.
10. air compression method as claimed in claim 8, is characterized in that:
When the air temperature passing into air compression system is below 5 DEG C, air is increased to 5 DEG C ~ 10 DEG C by temperature-adjusting device;
When the air temperature passing into air compression system is more than 25 DEG C, air is reduced to 20 DEG C ~ 25 DEG C by temperature-adjusting device;
When the air temperature passing into air compression system is 5 DEG C ~ 25 DEG C, temperature-adjusting device does not adjust air temperature.
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|---|---|---|---|
| CN201510919889.8A CN105485064A (en) | 2015-12-11 | 2015-12-11 | Air compression system and air compression method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510919889.8A CN105485064A (en) | 2015-12-11 | 2015-12-11 | Air compression system and air compression method |
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| CN105485064A true CN105485064A (en) | 2016-04-13 |
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| CN (1) | CN105485064A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112100815A (en) * | 2020-08-14 | 2020-12-18 | 西安工程大学 | Surface air cooler series design method for air compressor air inlet pretreatment |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080241029A1 (en) * | 2007-03-27 | 2008-10-02 | Vitali Victor Lissianski | Methods and apparatus for removing mercury from combustion flue gas |
| US20090114095A1 (en) * | 2007-11-06 | 2009-05-07 | General Electric Company | Filter cleaning system and method |
| CN102100993A (en) * | 2009-12-22 | 2011-06-22 | 通用电气公司 | Filter bag and laminated filter media |
| US20120174787A1 (en) * | 2011-01-12 | 2012-07-12 | General Electric Company | Filter having flow control features |
| CN102728157A (en) * | 2011-04-15 | 2012-10-17 | Bha控股公司 | Enhanced mercury capture from coal-fired power plants in the filtration baghouse |
| CN102847384A (en) * | 2011-06-27 | 2013-01-02 | 通用电气公司 | Filter assembly for use in a baghouse |
| CN203540306U (en) * | 2013-11-08 | 2014-04-16 | 新特能源股份有限公司 | Air compression system |
| CN104420999A (en) * | 2013-08-27 | 2015-03-18 | 通用电气公司 | Systems and methods for de-icing a gas turbine engine inlet screen and dehumidifying inlet air filters |
-
2015
- 2015-12-11 CN CN201510919889.8A patent/CN105485064A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080241029A1 (en) * | 2007-03-27 | 2008-10-02 | Vitali Victor Lissianski | Methods and apparatus for removing mercury from combustion flue gas |
| US20090114095A1 (en) * | 2007-11-06 | 2009-05-07 | General Electric Company | Filter cleaning system and method |
| CN102100993A (en) * | 2009-12-22 | 2011-06-22 | 通用电气公司 | Filter bag and laminated filter media |
| US20120174787A1 (en) * | 2011-01-12 | 2012-07-12 | General Electric Company | Filter having flow control features |
| CN102728157A (en) * | 2011-04-15 | 2012-10-17 | Bha控股公司 | Enhanced mercury capture from coal-fired power plants in the filtration baghouse |
| CN102847384A (en) * | 2011-06-27 | 2013-01-02 | 通用电气公司 | Filter assembly for use in a baghouse |
| CN104420999A (en) * | 2013-08-27 | 2015-03-18 | 通用电气公司 | Systems and methods for de-icing a gas turbine engine inlet screen and dehumidifying inlet air filters |
| CN203540306U (en) * | 2013-11-08 | 2014-04-16 | 新特能源股份有限公司 | Air compression system |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112100815A (en) * | 2020-08-14 | 2020-12-18 | 西安工程大学 | Surface air cooler series design method for air compressor air inlet pretreatment |
| CN112100815B (en) * | 2020-08-14 | 2024-04-16 | 西安工程大学 | Surface cooler serialization design method for air compressor air inlet pretreatment |
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Application publication date: 20160413 |