The difference between mini-pleat filter & separator filter

The two commonly used HEPA filter is Mini-pleat & separator. 

The mini-pleat HEPA filter mainly adopts thermal sol as filter divider, is advantageous for the mechanized production. At present, a lot of clean workshop need large quantities of this mini-pleat structure because of the small volume, light weight, easy installation, stable efficiency, and uniform wind speed. 

The separator HEPA filter, mainly adopts aluminum foil, paper to be folding shape as filter dividers, form the air channel. A separator is made of high quality craft paper, hot roll-press or adopted offset paper as partition plate. Currently, the use most is the double-sided adhesive coated paper for separator, main purpose is to prevent the partition affected by cold and hot dry wet contraction and emit particles. 
When temperature and humidity changes, the separator paper may have larger particles distribution, resulting the cleanliness test is unqualified for the cleanroom. 

So for the places with high cleanliness requirements, we should recommend customers to use Mini-pleat HEPA filter. The abroad price of Separator HEPA filter is higher than Mini-pleat HEPA filter, so the separator HEPA filter seldom used oversea. In addition, compared with the rectangular channel of separator HEPA filter, the V channel of mini-pleat HEPA filter further improve the uniformity of dust capacity and extend the service life. Ventilation mini-pleat HEPA filter can avoid the use of metal parts, easy to waste processing, in line with the increasingly stringent environmental requirements. Except some special occasions, like the high temperature resistant and high security requirements, the mini-pleat HEPA filter can replace the separator HEPA filter.

The air cleanliness testing of cleanroom

The air cleanliness testing of cleanroom

The air cleanliness of cleanroom, should undertake the following tests:

A  Empty state & static testing
Empty state test: under the conditions of cleanroom has been completed & the purify air conditioning system has been in a state of normal operation, to do the test without process equipment and production personnel indoor.
Static test: under the conditions of cleanroom purify air conditioning system is in normal operation condition and process equipment has been installed, to do the test without production personnel indoor.

B  To do the dynamic testing cleanroom under the normal production.
Clean room air volume, wind speed, positive pressure, temperature, humidity, noise detection, can according to the relevant provisions of the general gm & air conditioning to execute.

Empty state, static testing
A   the preparation before the test
1. Response to the clean room clean air conditioning system to make a thorough clean.

2、Using light scattering particle counter to do the leak detection test for HEPA filter. First determine the dust grain number of upper side of the HEPA air filter static pressure box (or air hose) particle size ≥0.5um should be ≥30000 / l. If not enough, smoke can be introduced, and then began to leak detection. Put the particle counter (or leak detection devices) about 2~3cm to the sampling port of the HEPA filter, can move at a speed of 2 ~ 4 cm/sec, to scan the whole section head at the glue and mounting frame. When the dust particles of particle counter?≥0.5um over 3 grain/min.l (or the penetration rate ＞0.01‰)，that it has obvious leakage, must be prevented leak.

B  Test content
1. The total air supply volume, total return air volume, fresh air volume, exhaust air volume, etc.
2. Clean room pressure value.
3. The section air velocity and air flow of laminar flow cleanroom.
4. The cleanliness of clean work area.
5. Indoor temperature, humidity and the adjust test of control capabilities.
6. The indoor noise of cleanroom.

C  The test method for air cleanliness of the clean work area for the particle size ≥0.5um, it’s better to adopt a light scattering particle counting method. For the particle size ≥0.5um, it can also be used membrane microscope counting method.

Light scattering particle counting method
1、Light scattering particle counter sample volume for 100 rank: each time the sample volume ≥1 liter.
For 1,000~10,000 rank: each time the sample volume ≥0.3 liter.
For 100,000 rank: each time the sample volume ≥0.1 liter.
For the 100 rank cleanroom, it should be used to test by the large flow particle counter. If the conditions are not available, it can be used for each sample not less than 1 liter of particle counter.

2、Sampling Notes：
(1) The sampling tube must be clean, junction is strictly prohibited leakage.
(2) The length of sampling tube, should be based on allowable length of the instrument. If not has the specified, should be less than 1.5 meters.
(3) The sampling nozzle velocity, should close to the average wind speed of cleanroom section. The tester should at the downwind of sampling port.
(4) Sample order should be in accordance with the dust concentration from low to high.

3、Monitoring point arrangement
(1) Testing should be proceed in the clean work area. When the production process without special requirements, sampling height appropriate for one meter from the ground.
(2) The total measuring point of laminar flow clean room not less than 20 points, each measuring point distance is from 0.5um to 2.0um. The number of dust particle size ≥ 0.5 microns allows more than one point. The measuring points of horizontal laminar flow clean room only arranged in the first clean workspace.
(3) Turbulence cleanroom according to clean area, if ≤ 50 square meters are arranged five measuring points (attached map 2). Each additional 20~50 square meters, add 3~5 measuring points.

4、Data processing
(1) Data processing of each measuring point should be three consecutive sampling under conditions of stable operation of test equipment, take the average value, is the point at which the measured value.

(2) For the number of dust particles ≥ 0.5um: laminar flow cleanroom to take each maximum measurement point, turbulence cleanroom averaged each measuring point.

D  Positive pressure measuring should adopt the micromanometers which the accuracy up to 0.01 mm water column.

Dynamic Testing. The operating position in the clean workspace choose a representative measuring point on the airflow wind direction, the test method is the same with empty state & static testing.

How many Do you know about nozzles of industrial Cleanroom air shower?

How many Do you know about nozzles of industrial Cleanroom air shower?

Air shower room as dust removal equipment not less in industrial production, its use has been very extensive, but in today's article for you to some of the design and use of these air shower nozzle to introduce the basic situation, we have a look at today's vents.

1, air shower nozzle design materials

1.1, The materials of air shower nozzles must have the corrosion resistance, and easy molding;

1.2, When using aluminum to comply with the GB5237;

1.3, When using the steel to meet GB11253.

2, air shower nozzle design requirements

2.1, The decorative surface color to be consistent;

2.2, the blade pitch size deviation of not more than 1mm;

2.3, air decorative surface has no obvious scratch, indentation;

2.4, the curvature of the blade is 3/1000mm, the parallel degree is 4/1000mm;

2.5, determine the air in the standard test conditions rated air flow and a range of values;

2.6, air moving parts required to operate freely, not stuck, loose phenomenon;

2.7, the air in the neck of the speed is 6m/s, the total pressure loss of equipment can not exceed 100Pa;

2.8, air interface joint decoration on the surface of aluminium material should not exceed 0.15mm, other materials not exceeding 0.2mm.

3.The basic classification of the nozzle three, air shower room.

3.1, louver: square, rectangular, round;

3.2, the diffuser: circular, square, rectangular, circular etc.;

3.3: circular, rectangular, nozzle, spherical etc.;

3.4, the special air inlet, outlet, chair: lamps, grille and air outlet hole;

3.5, slot outlet: single slot, and a plurality of slots.

On the three aspects above we provide you a detailed analysis of the specifications and requirements of the air shower nozzle, these seemingly simple knowledge is in our actual operation process is very important, the general air shower nozzle quality will also affect the wind effect, because this is the understanding and very important to grasp this knowledge.

Anlaitech--We are professional in clean room air shower manufacturing,the standard nozzles of air shower specifications:

1. Stainless steel 304 made which is corrosion resistance, and easy molding.

2.Round type

WEB: WWW.CLEANROOMFFU.COM

Modular Cleanroom 100Class GMP standard Negative pressure Weighing Room ...

The difference between the clean room and clean booth(Modular clean room)

More and more customer prefer easy installed clean booth(Modular clean roo, softwall clean room as named) for cost saving, to keep a clean area space.

Then Anlaitech company engineer would take more information about clean booth to share, if any professional in clean room trade, we would much appreciated your comments !

Thank you for reading.

The difference between the clean room and clean booth(Modular clean room)

 

1. Clean booth material :

Framework of clean booth generally three types:50*50/50*80/50*100 stainless steel square but, iron with epoxy powder coated in square tube , 40*40 aluminum.
The top shelf material of clean booth generally four types: stainless steel plate, cold rolled steel spray epoxy, anti -static air curtain, (anti-static ) acrylic plate .
Airflow Supply Parts, the general choice FFU laminar flow hood (FFU laminar flow air supply unit )
Walls of clean booth materials generally include: anti-static air curtain, ( anti-static ) acrylic plate.

2.Clean booth purification level of choice:

More customers will choose 1000class clean booth(Modular clean room), or 10000class clean booth, a small number of customers will choose one hundred or ten thousand clean class clean booth. In short , clean booth-level choices depends on customers requirements, but relatively clean booth sealed closed, such as when selecting clean booth level is relatively low, often bring some side effects : insufficient cooling capacity, staff feel more hot in the clean booth, so the actual and the customer communication process , need to pay attention to this point.

3. The cost of the clean room and clean booth comparison:

Overall, most customers will built clean booth in the clean room, but some customers do not want to build a clean room, clean booth does not consider air conditioning system and air shower room, pass box these cleaning equipment, etc. the cost of clean booth is about 40% to 60% of the clean room cost, also depending on the customer 's choice of clean booth material, as well as the size of the clean booth. The larger the area needs, with a clean room cost difference will be smaller compared.

4. clean booth advantages:

A. Construction fast, easy installation
B. low cost , easy maintenance
C. easy to control , FFU each comes with fan;

5. clean booth drawbacks:

A. because of the extensive use of FFU air filtration units , so clean booth noise may be relatively large ;

B. FFU own fans, to maintain high frequency, but most clean room choose FFU own fans instead of HEPA filter box also maintain high frequency;

C. due to space airflow supply , clean shed inside will often feel hot ;

D. If not clean booth built in the clean room, due to the lack of protection in effect filter, high efficiency filter life compared with the clean room, will be shortened, the higher the cost of long-term use.

We are in clean room business many years, chose Anlaitech to built a perfect clean room for your factory!

www.cleanroomffu.com

Email at: wangvanlu@gmail.com / sales@anlaitech.com

We are in Guangzhou China.

Our Mini-Pleated HEPA filter

Mini-Pleated HEPA filter of Anlaitech Brand

Product Introduction<<<

Mini-pleated HEPA filter made ​​of ultra-fine glass fiber; with hot melt adhesive separated, plastic glue can be sure that the folds spacing, to ensure the best airflow through to reach a high dust holding capacity, full use of the filter media. Double-side spray mesh grille protect net to protect filter media not damaged, special sealant ensure the tightness of the entire filter. Frame uses hard anodized to increase the degree of corrosion resistance and durability. Each filter has been strictly tested before factory.

Features: High efficiency, low resistance, light weight, thin, easy installation, low running costs.

Application: Electronics, medicine, food, semiconductor manufacturing, Atomic, precision machinery, cosmetics and other places required high clean class.

Material and Operation Conditions

Media	Glass fiber
Sealant	PU Polyurethane
Frame	Aluminum/Galvanized steel/Stainless steel
Protect net	Spray diamond mesh
Separator	EVA hot melt adhesive
Gasket	PU Polyurethane, EVA, Neoprene
Filter Efficiency (EN1822)	CH3: 99.97-99.99%@0.3μm CH4: 99.995-99.999%@0.3μm
Max. Temperature	70℃
Max. Humidity	80%

Dimension & Parameters<<<

Model	Size (W×H×D)mm	Air flow(m³/h)	Intital Resistance(pa)	Final Resistance(pa)	Media area (m2)	Dust Holding(g)	Efficiency
AL-MH-001	305×305×69	260	≤200	400-600	2.5	150	CH3-CH4
AL-MH-002	484×484×69	700	≤200	400-600	6.6	400	CH3-CH4
AL-MH-003	610×610×69	1000	≤200	400-600	10.7	650	CH3-CH4
AL-MH-004	610×915×69	1600	≤200	400-600	16.0	950	CH3-CH4
AL-MH-005	1220×610×69	2100	≤200	400-600	21.3	1000	CH3-CH4
AL-MH-006	484×484×96	1000	≤200	400-600	10.2	620	CH3-CH4
AL-MH-007	610×610×96	1500	≤200	400-600	16.2	980	CH3-CH4
AL-MH-008	1220×610×96	3100	≤200	400-600	31.9	1920	CH3-CH4

Customized design is welcome.

Check our HEPA filter producing, feel free contact with us for best price!

Click our web: www.cleanroomffu.com for more HEPA filter information!

Now our HEPA filter oder full to our Spring New Year Festival( 14th of Feb to 25th of Feb), contact with us to order a good delivery, do not wait!

Air Shower Tunnel Simple Introductions Save the Time for your Clean Room

English Name: AIR SHOWER TUNNEL / AIR SHOWER PASSAGE

Chinese Name: 风淋通道

Application: Industrial clean room entrance facilities

Nickname: ​​Air shower

Contents

1 Introduction
2 Works
3 Main features
4 Facilities Role
5 Air Shower tunnel configuration
6 Troubleshooting

1 Introduction

Air shower tunnel is clean plant and ancillary clean room equipment for blowing the

surface dust of attached to the body and belongings before entering clean area, at the same time play the role as an airlock room to prevent unpurified air into the clean area. It is purify the material and equipment to prevent effective outdoor air pollution the clean area, versatility, with all the clean room and supporting the use of clean room. Air shower tunnel decontamination area suitable for large enterprises.

Nickname: Air shower (AIR SHOWER ROOM), clean room air shower, clean air shower, clean air shower room, air shower clean room, air shower doors, air dust blowing room, air shower channel, air shower tunnel, air shower passage

2 Works
Air inside Air shower tunnel by the fan's role filtered by the primary filter into the plenum, then through HEPA air filters, the clean air spray out from the air shower room high-speed nozzles, nozzle angle can be adjusted, effectively clean the dust of people or carry items attached to the surface of dust, blowing dust into the primary air filters, so the cycle can achieve the purpose of the clean air shower.

3 Main features
1 , the use of more appropriate clean room principle arc angle design
2, the system automatically control operation, two-door electronic interlocking, and a photoelectric sensor. Once door closed infrared sensor automatically blowing leaching, two door automatically locked during showering, only go out from the air shower exit door;
3, the overall production of cold-rolled steel , the outer surface electrostatic spray
4, door, floor base, nozzles are made ​​of stainless steel , nice

5. Touch soft keys time relay , LED display and setting air showering time, the range of 10-99s adjustable( PLC control system is available);
6, using the pre-filter, high level filtration system with HEPA filter, filtration efficiency : 99.99% , to ensure the purification level
7, the air nozzle outlet winds of up to 25m/s or more, blowing wind speed on the human body 18m/s or more.

8, using EVA sealing material , high sealant performance

9 , the use of imported electronic components, reliable performance
10, with stainless steel multi-angle adjustable nozzle, double volute winds of low noise external rotor fan, surface wind speed is greater than 25m/s;
11 , advanced noise reduction device system mute .
12 , modular design, assembly, transportation is very convenient

13, single-chip microprocessor controller , intelligent voice prompt system , automatic air shower at the time by the control system voice prompts people to have the order to complete the blowing dust leaching process.
14, LED display can indicate showering time, and working status.

15 , infrared photoelectric sensor switch control air shower, avoid unmanned air blowing.

4 Facilities Role

Air shower tunnel is personal purification device to enter the clean room use. It uses high-speed blow clean air into the room to get rid of people who poured the dirt. Its nozzle can be adjusted in order to effectively remove dust from humans and prevent outside contamination entering the clean area. It can also be applied to large cargo air shower .

Personal / cargo shower is necessary equipment for human / cargo entering and leaving the clean room and simultaneously play the role of a sealed gas chamber clean room.
In order to reduce the human / cargo attached large number of dust particles, air filtered through HEPA filter then clean air through injection nozzle can be rotated in all directions, effectively and rapid removal of dust particles, dust particles after clearing and then from the primary filter, after the HEPA filtered recirculated into the air shower area.

In order to achieve the best results blow shower, the personal / cargo shower nozzle outlet design wind speed can reach 25m/s or more, blowing wind humans minimum 18m/s, the initial air shower time factory set to 10 seconds .

Air shower tunnel provides a modular assembly, it can be assembled into the actual needs of the air shower size of various lengths.

5 Air shower tunnel configuration

4. Troubleshooting

(1) Fan unable to start

① check the power plug is plugged in

② check whether the E-top switch is pressed (E-stop switch on the outside of the cabinet)

③ confirm the above two are normal still unable to start, please contact with our company

(2) Air shower unable to showering

① check whether the E-top switch on the control panel is pressed, such as emergency stop light is red then do not showering, press the emergency stop button will be ok
② check whether the front door is in a closed state, the front door is not closed under good conditions then does not showering
③ check to see if standing in the sensing area. Again pass through sensing area can be ok.

(3) Lighting the lamp is not lit

① check whether the lamp is damaged, if so , please replace the lamp.

② Please check the lighting key on the control panel is pressed, such as light indicator is not on, lights are also not lit, press the light button will be ok

(4) Air shower low wind speed

① check the voltage is lower than the rated voltage of the fan

② if the air shower has been used for a period, check whether the filter is dirty enough need replaced.

(primary filter replaced generally 1-6 months, HEPA filter replaced usually 6-12 months )

air shower export packing

More types design of air shower tunnel, contact with us for best design for your clean room

Sort by: Vanessa Wang

Skype: wangvanlu

Email at: wangvanlu@gmail.com

Web: www.cleanroomffu.com