CN201435897Y - Air suction filter of built-in heat exchange system of electrical equipment - Google Patents

Air suction filter of built-in heat exchange system of electrical equipment Download PDF

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Publication number
CN201435897Y
CN201435897Y CN2009201219171U CN200920121917U CN201435897Y CN 201435897 Y CN201435897 Y CN 201435897Y CN 2009201219171 U CN2009201219171 U CN 2009201219171U CN 200920121917 U CN200920121917 U CN 200920121917U CN 201435897 Y CN201435897 Y CN 201435897Y
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CN
China
Prior art keywords
filter
built
air intake
exchange
heat
Prior art date
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Expired - Lifetime
Application number
CN2009201219171U
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Chinese (zh)
Inventor
沈亚斌
易元利
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
HANGZHOU FILTECH INTELLIGENT CO., LTD.
Original Assignee
HANGZHOU CACL TECHNOLOGY Co Ltd
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Priority to CN2009201219171U priority Critical patent/CN201435897Y/en
Application granted granted Critical
Publication of CN201435897Y publication Critical patent/CN201435897Y/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Abstract

The utility model relates to an air suction filter of a built-in heat exchange system of a control equipment cabinet of an electricity and wireless communication base station which is all-weather exposed; the air suction filter is mainly used for removing air suspension particles with more than 0.3mum and comprises a filter frame and a filter medium arranged in the frame in a sealing way; the airsuction filter is characterized in that: the air suction filter is round; the novel filter has easy and convenient installation and superhigh dust holding capacity, and is convenient and easy to cleandust.

Description

A kind of air intake filter that is used for the built-in heat-exchange system of electric equipment
Technical field
The utility model relates to a kind of air intake filter of built-in heat-exchange system of the control rack that is used to be exposed to electric power under all weather conditions, wireless communication base station, is mainly used to remove the above airborne suspended particle of 0.3um.
Background technology
Those skilled in the art knows that the interior work electronic component of " remote terminal " control rack of electric power, wireless remote communication base station, cable TV and data transmission set can produce certain heat usually; if untimelyly heat is got rid of rack outside will produce immeasurable destruction, thereby need certain cooling and/or ventilation.Rack can be placed usually, be installed under the various harsh weather environments in addition; such as: the high concentrate dust area of the offshore platform and the torrid zone, polar region, desert, foul pollution; for the built-in sensitive electronic components of rack, in the ventilation cooling procedure, should avoid contacting common damage, the corrosion of reacting the electronics senser that is produced of compound particle of water, mist, moisture and salt as far as possible.Usually those skilled in the art can become cabinet design one to contain the air inlet of initial effect net filter, the air outlet of a band centrifugal fan.The continual cold air that rack is outer of centrifugal fan is introduced by air inlet and is removed to absorb the heat energy that electronic component produces in the rack, constantly will have again simultaneously heat air discharge outside the rack, its objective is that the temperature and the outdoor temperature that allow in the rack reach a balance point.
Chinese patent literature CN101223838A discloses a kind of fan cooling unit that is used for the prior art of air cooled telecommunication base station; this fan cooling unit comprises the shell that holds described electronic unit; at least one air intake opening in the described shell and at least one air outlet slit opening; generation is passed through described shell at least one blower fan to the air-flow of described air outlet slit opening from described air intake opening; and at least one protectiveness covers device; described protectiveness covers device and fully covers described at least air intake opening to remove degranulation from the air-flow that enters described shell; described protection covers device and comprises composite filter media and framework; described composite filter media is installed in the described framework; thereby between described filter medium and described framework, form airtight cooperation; wherein; described filter medium comprises the membrane filtration layer; described membrane filtration layer comprises the thin polymer film of porous; and at least one depth filter media layer; described depth filter media layer comprises fiber and is arranged on respect to the airflow direction that flows through filter on the upstream side of described membrane filtration layer; wherein, the fiber of described depth filter media layer preferably has electrostatic charge.
But the protectiveness of this scheme covers device and still has following shortcoming:
The electrostatic charge of in-depth filtration medium is difficult to keep the long period, being merely able under outdoor environment keeps the some months will be by the charging neutrality of air the inside, filter efficiency is reduced to 30% by 85%, will increase the weight of the filtration burden of back ePTFE thin layer, influences filter useful life.
This air intake filter normally is contained in the dead ahead of rack, wants usually to disassemble this protecting sheathing earlier when rack keeps in repair, and therefore increases the extra work amount, in some narrow cabinet space, can bring inconvenience extremely.
In order to reach long filter useful life, filter is designed enough hugely usually, and the filter of design can not clean and clean, thereby the purchase of filter and replacement cost are very big.
Chinese patent literature CN2860594 discloses a kind of filtering element for air filter, by housing, central shaft and collapsible filter paper are formed, housing is made of bigger main ring and less base ring, the bottom of band reinforcement in less base ring is provided with, the bottom of band reinforcement is provided with circular and special-shaped air admission hole, central shaft is set to the integrative-structure form by reinforcement and housing, support by reinforcement, be arranged on the central authorities of housing bigger main ring, the folding direction and the central shaft of collapsible filter paper are vertical arrangement, close emitting shape form is fixedly installed between the inner surface of central shaft outer surface and housing in dredging in addition, because air flows along central axis direction during work, dust relatively is evenly distributed on the collapsible filter paper surface, help the unimpeded of air-flow, simultaneously, more collapsible filter paper is set in the housing bigger main ring of same volume, the working life that helps increasing air filtration face and prolong filter core, and housing and central shaft be the integrative-structure form makes structure more become simple and rationally.But adopt central axle designs can cause the decline of effective filtration area, make the dust containing capacity of filter reduce, and resistance raises.
Summary of the invention
The utility model is at above the deficiencies in the prior art, provide a kind of " remote terminal " that is used to be exposed to electric power under all weather conditions, wireless remote communication base station, cable TV and data transmission set to control the air intake filter of the built-in heat-exchange system of rack, it not only has dedusting, water-resistance, anti-salt, also has to resist all cause the element of corrosion or damage to sensitive electronic components defensive ability/resistance ability.
The technical solution of the utility model is:
A kind of air intake filter that is used for the built-in heat-exchange system of electric equipment comprises filter frame and is seal-installed on the interior filter medium of framework, it is characterized in that described air intake filter is rounded.
Described filter medium is seal-installed in the framework by fluid sealant, and described filter frame and fluid sealant are the annulus column.
Described filter frame is poly-carbon plastic frame or metal framework or ABS plastic framework.
Described filter medium comprises at least one deck primary efficient filter screen, one deck medium air filtration net and the folding filter course of one deck at least at least.
Described primary efficient filter screen, medium air filtration net be the formula tridimensional network in gradient.
Described folding filter course is that continuous Z-shaped plate material fold forms.
Described folding filter course is provided with plurality of strengthening ribs.
Described folding filter course comprises basic unit and breathable films filter course.
Described basic unit comprises stiffening spunlace non-woven cloth and at least one strata acid amides nanofiber of one deck at least.
Described breathable films filter course is a ptfe porous membrane.
Its diameter of described polyamide nanofiber is the 100-300 nanometer, is 2-40g/m attached to the polyamide nanofiber grammes per square metre on the spunlace non-woven cloth 2
Described breathable films filter course is the ptfe porous membrane of handling through the electret polarization.
Optimally, described is 10-20g/m attached to the polyamide nanofiber grammes per square metre on the spunlace non-woven cloth 2
Some further elaborations of the utility model are:
Filter medium of the present utility model also comprises the basic unit of one deck band layers of nanofibers except the breathable films filter course, this basic unit is arranged on the upstream side of thin layer with respect to the airflow direction by filter.This basic unit comprises by the Fypro of 100-500 nanometer and stiffening spunlace non-woven cloth complex media, the preferable Fypro of selecting the 200-300 nanometer for use and the combination of stiffening spunlace non-woven cloth complex media, the compound preferred ultrasonic wave of material is compound, and less important selective solvent is fitted.
The porous Teflon (ePTFE) of selecting for use that the breathable films filter course is preferable is made, the ePTFE film is hydrophobic, uniform microcellular structure can be resisted compound of water, mist, saliferous or the like and can catch efficiently on the air intake surface of film, forms cake layer; The preferable electret polarization of can doing on this breathable films is handled.
Though the ePTFE film has anti-water, demist, anti-salt and ash removal efficiency efficiently; but because film softness; the about 5-10um of thickness; use that can not be independent; must use together with ventilative supporting layer, cause in the use and the course of processing, film can be scratched usually; pull, it is definitely out of use adopting damaged filter.Therefore; this filters its structure and comprises the folding filter course that has cancellated filter screen of three-dimensional gradient and pleating lamination; folding filter course comprises the ePTFE film and has the spunlace non-woven cloth base material and the breathable films protection plastics grid net of polyamide nanofiber that this breathable films has the 250l/m of being about 2The air gas permeability of/s, and the particle of the 0.3um size filter efficiency under 32LPM test phoenix amount reached 85% ash removal efficiency at least
And the spunlace non-woven cloth base material of polyamide nanofiber has about 10001/m 2The air gas permeability of/s, and the particle of the 0.3um size filter efficiency under 32LPMc test air quantity reached 75% at least; And whole composite lay can obtain 2001/m 2The air gas permeability of/s, and the filter efficiency of particle under 32LPM of 0.3um size reached 99.5% or higher filter efficiency at least, described material efficiency, resistance measurement standard are EN1822-3:1998; Described material gas permeability testing standard is ISO 9237-1995.
Nonwoven fabrics also can be set folding filter course described in the utility model or plastic grid cloth or plastic grill net etc. further strengthen the intensity that folds filter course.
The utility model can be used for-40 ℃ to+120 ℃ environment, can resist the experiment of various operating modes of estimating and the anti-molecule of anti-water, this filter is the gradient-structure of multilayer, at first allow particle diameter be tackled by the gradient primarily efficient filter layer of three-dimensional structure, estimate interception is fallen the fiber grain thing dust and the aqueous vapor of 50% mass ratio and contained salt compound greater than the fibre dust particle more than the 5.0um; Particle diameter is filtered out the fiber grain thing dust and the aqueous vapor of 45% mass ratio and contains salt compound by the medium air filtration layer again at the particle diameter of 1-5um; Layers of nanofibers will filter out 4% mass ratio 0.3-1.0um fiber grain thing dust and aqueous vapor and contain salt compound; And last one deck breathable film layer will filter out the aerosol and the aqueous vapor of the 0.1-0.3um particle of 0.5% mass ratio.Therefore have the front that about 99% particle and aqueous vapor are intercepted at film, 0.5% the particle of only having an appointment covers on the film, and this will improve the useful life of this air intake filter greatly.
Those skilled in the art know, along with the increase that filter uses, filter cake gradually primarily efficient filter layer and medium air filtration layer the surface and the slit of chemical fiber in fill up.This filter cake also provides the additional filtering effect simultaneously, As time goes on the filter efficiency of filter cake improves, when the above-mentioned filter that contains filter cake is exposed in the humid climate of about 100% relative humidity, if filter cake is formed directly on the surface of breathable films material, then the expansion of filter cake particle in humid climate causes ventilative fenestra to be plugged and causes the pressure drop of filter medium to strengthen.Yet if filter cake separates with film surface with middle effect layer by means of the primarily efficient filter layer, so this pressure drop will reduce greatly, and positive filter efficiency is arranged on the contrary.
The utility model filter has following characteristics:
1, the air intake filter is contained in the side of rack, meets the best principle of cooling machine cabinet, and the installation site of filter, does not influence follow-up rack maintenance work, and is simple and convenient.
2, filter housing can be selected fire-retardant poly-charcoal engineering plastics for use, and antistatic, anti-aging, anti-electric shock is excellent, because be circular, so assemble more convenient.
3, water thorn base material and the polytetrafluoroethylene breathable films material that adopts the first effect gradient filter pulp and the middle effect filter pulp of three-dimensional structure and contain layers of nanofibers, the dust containing capacity with superelevation can dwindle the volume of filtration greatly.
4, in difform filter, under the situation of identical effective filtration area, filter amplitude peak of the present invention ground reduces the external form volume of filter assemblies, has a lot of dust amount.
5, the filter dust cleaning is more convenient, easy
Description of drawings
Fig. 1 is a kind of folding filter course cross-sectional view of the present utility model
Fig. 2 is a kind of folding filter course cross-sectional view of the present utility model
Fig. 3 is a kind of folding filter course cross-sectional view of the present utility model
Fig. 4 is a kind of folding filter course cross-sectional view of the present utility model
Fig. 5 is a kind of folding filtering layer structure schematic diagram of the present utility model
Fig. 6 is a filter sectional structure schematic diagram of the present utility model
Fig. 7 is the utility model filter explosive view
Fig. 8 is a kind of folding filtering layer structure schematic diagram of the present utility model
Fig. 9 is a filter sectional structure schematic diagram of the present utility model
Figure 10 is the utility model filter explosive view
Wherein: folding filter course 10, thin layer 11, layers of nanofibers 13, spunlace non-woven cloth 14, protective layer 15, plastic grill net 16, primary efficient filter screen 21, medium air filtration net 22, colloid 30, framework 40, reinforcement 41.
Embodiment
The utility model will be further described below in conjunction with accompanying drawing.
Embodiment one
As described in Fig. 1, Fig. 5, Fig. 6, Fig. 7, circular air intake filter comprises annulus column filter frame 40 and is seal-installed on the interior filter medium of framework that filter frame 40 is a metal framework.
Described filter medium comprises that one deck primary efficient filter screen 21, one deck medium air filtration net 22 and one deck fold filter course 10, by colloid 30 sealings, folding filter course 10 is pleating the forming of continuous Z-shaped plate material, folding filter course comprises membrane filtration layer 11, one deck spunlace non-woven cloth 14 and is located at one deck polyamide nanofiber 13 on the spunlace non-woven cloth 14 that membrane filtration layer 11 is the ptfe porous membrane of handling through electret; The polyamide nanofiber diameter is 100 nanometers, is 2g/m attached to the polyamide nanofiber grammes per square metre on the spunlace non-woven cloth 2
Embodiment two
As described in Fig. 2, Fig. 8, Fig. 9, Figure 10, circular air intake filter comprises annulus column filter frame 40 and is seal-installed on the interior filter medium of framework that filter frame 40 is poly-carbon plastic frame.
Described filter medium comprises one deck primarily efficient filter layer 20 and the folding filter course 10 of one deck, by colloid 30 sealings, primarily efficient filter layer 20 is the formula three-dimensional structure in gradient, by filter course 21, filter course 22 is formed, folding filter course 10 is pleating the forming of continuous Z-shaped plate material, folding filter course 10 is provided with plurality of strengthening ribs 41, folding filter course comprises membrane filtration layer 11, one deck spunlace non-woven cloth 14 and one deck polyamide nanofiber 13, and the layer protective layer 15 of bottom, membrane filtration layer 11 is the ptfe porous membrane of handling through electret; Its diameter of polyamide nanofiber is 300 nanometers, is 40g/m attached to the polyamide nanofiber grammes per square metre on the spunlace non-woven cloth 2
Embodiment three
As described in Fig. 4, Fig. 5, Fig. 6, Fig. 7, circular air intake filter comprises annulus column filter frame 40 and the filter medium that is seal-installed in the framework 40, and filter frame 40 is the ABS plastic framework.
Described filter medium comprises one deck primarily efficient filter layer 20 and the folding filter course 10 of one deck, and by colloid 30 sealings, primarily efficient filter layer 20 is the formula three-dimensional structure in gradient, and by filter course 21, filter course 22 is formed; Folding filter course 10 is pleating the forming of continuous Z-shaped plate material, folding filter course 10 is plastic grill net 16, polyamide nanofiber 13, spunlace non-woven cloth 14, membrane filtration layer 11, protective layer 15, plastic grill net 16 from top to bottom, and membrane filtration layer 11 is the ptfe porous membrane of handling through electret; The polyamide nanofiber diameter is 200 nanometers, is 10g/m attached to the polyamide nanofiber grammes per square metre on the spunlace non-woven cloth 2
Embodiment four
As described in Fig. 4, Fig. 8, Fig. 9, Figure 10, circular air intake filter comprises annulus column filter frame 40 and is seal-installed on the interior filter medium of framework that filter frame 40 is poly-carbon plastic frame.
Described filter medium comprises one deck primarily efficient filter layer 20 and the folding filter course 10 of one deck, and by colloid 30 sealings, primarily efficient filter layer 20 is the formula three-dimensional structure in gradient, and by filter course 21, filter course 22 is formed; Folding filter course 10 is pleating the forming of continuous Z-shaped plate material, folding filter course 10 is provided with plurality of strengthening ribs 41, folding filter course 10 is plastic grill net 16, polyamide nanofiber 13, membrane filtration layer 11, spunlace non-woven cloth 14, plastic grill net 16 from top to bottom, and membrane filtration layer 11 is the ptfe porous membrane of handling through electret; The polyamide nanofiber diameter is 250 nanometers, is 20g/m attached to the polyamide nanofiber grammes per square metre on the spunlace non-woven cloth 2
Should be noted that; to be that the Z-shaped plate material is pleating form rounded technical scheme and all fall into protection range of the present utility model every folded medium layer; the replacement of any simple concept all should be considered as simple deformation of the present utility model, belongs to protection range of the present utility model.

Claims (13)

1, a kind of air intake filter that is used for the built-in heat-exchange system of electric equipment comprises filter frame and is seal-installed on the interior filter medium of framework, it is characterized in that described air intake filter is rounded.
2, the air intake filter that is used for the built-in heat-exchange system of electric equipment according to claim 1 is characterized in that described filter medium is seal-installed in the framework by fluid sealant, and described filter frame and fluid sealant are the annulus column.
3, the air intake filter that is used for the built-in heat-exchange system of electric equipment according to claim 2 is characterized in that described filter frame is poly-carbon plastic frame or metal framework or ABS plastic framework.
4, the air intake filter that is used for the built-in heat-exchange system of electric equipment according to claim 1 is characterized in that described filter medium comprises at least one deck primary efficient filter screen, one deck medium air filtration net and the folding filter course of one deck at least at least.
5, the air intake filter that is used for the built-in heat-exchange system of electric equipment according to claim 4 is characterized in that described primary efficient filter screen, medium air filtration net formula tridimensional network in gradient.
6, the air intake filter that is used for the built-in heat-exchange system of electric equipment according to claim 4 is characterized in that described folding filter course is that continuous Z-shaped plate material fold forms.
7,, it is characterized in that described folding filter course is provided with plurality of strengthening ribs according to claim 4 or the 6 described air intake filters that are used for the built-in heat-exchange system of electric equipment.
8, the air intake filter that is used for the built-in heat-exchange system of electric equipment according to claim 4 is characterized in that described folding filter course comprises basic unit and breathable films filter course.
9, the air intake filter that is used for the built-in heat-exchange system of electric equipment according to claim 8 is characterized in that described basic unit comprises stiffening spunlace non-woven cloth and at least one strata acid amides nanofiber of one deck at least.
10, the air intake filter that is used for the built-in heat-exchange system of electric equipment according to claim 8 is characterized in that described breathable films filter course is a ptfe porous membrane.
11, the air intake filter that is used for the built-in heat-exchange system of electric equipment according to claim 9 is characterized in that its diameter of described polyamide nanofiber is the 100-300 nanometer, is 2-40g/m attached to the polyamide nanofiber grammes per square metre on the spunlace non-woven cloth 2
12, the air intake filter that is used for the built-in heat-exchange system of electric equipment according to claim 10 is characterized in that the ptfe porous membrane of described breathable films filter course for handling through the electret polarization.
13, the air intake filter that is used for the built-in heat-exchange system of electric equipment according to claim 11 is characterized in that described is 10-20g/m attached to the polyamide nanofiber grammes per square metre on the spunlace non-woven cloth 2
CN2009201219171U 2009-06-11 2009-06-11 Air suction filter of built-in heat exchange system of electrical equipment Expired - Lifetime CN201435897Y (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110281253A (en) * 2019-07-17 2019-09-27 中民新能投资集团有限公司 A kind of photovoltaic plant sweeping robot control cabinet and automatic protecting method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110281253A (en) * 2019-07-17 2019-09-27 中民新能投资集团有限公司 A kind of photovoltaic plant sweeping robot control cabinet and automatic protecting method

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Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
C56 Change in the name or address of the patentee
CP03 Change of name, title or address

Address after: Hangzhou City, Zhejiang province Binjiang District 310023 shore road 1197 building 7 room 316

Patentee after: HANGZHOU FILTECH INTELLIGENT CO., LTD.

Address before: 311114, Zhejiang, Hangzhou, Yuhang five five Jing Feng Industrial Park, 3

Patentee before: Hangzhou CACL Technology Co., Ltd.

CX01 Expiry of patent term
CX01 Expiry of patent term

Granted publication date: 20100331