Clean operating room laminar smallpox to strict for indoor air filtration, removal of planktonic bacteria in the air, and the air distribution of science, make the patient and medical staff of bacteria with airflow away, not return incision, to avoid the infection from the air.So strict air filter, reasonable airflow organization, is the core operating room air purification system of the technology.
Laminar flow operating room smallpox in the air purification
process.Fresh air into the return air section, mixed with return
air, again into effect in the early period, early efficient filter filter to a
diameter of 10 um large particles of dust, into the heat exchanger and
humidification, which can adjust the temperature, humidity, and then into the
fan section pressure, through the efficient filter, dust filter to l - 10 um,
enter the silencer, the noise dropped below 58 db, sent to the operating room of
efficient plenum, the high efficiency filter dust filter to 0.31 um um - 1, the
high efficiency air supply outlet, the mesa clean air sent to the operating
room.At the beginning of operating room return air mouth
installation has effectively filter, return air piping is also equipped with
muffler.The operating room to install more than pressure valve, in
order to maintain indoor positive pressure value of the
constant.Exhaust fan is used to quickly eliminate peculiar smell
and accelerate the fresh air.
Clean operating room smallpox laminar flow organization forms: clean operating room in coarse, medium and high level 3 filters can be *, for indoor air is clean, decide the level of the purity of the operating room is a form of airflow.Different forms of air flow to eliminate the operating room like bacteria quantity effect is not of itself, cause the operation clean level is different also.The basic principle of the clean operating room air flow organization is to minimize eddy current, make the shoot people clean air flow through the shortest flow operation area, hope the direction of the airflow and dust gravity sedimentation in the same direction, and makes the backflow effectively will indoor airflow dust emitted.In clean technology, the airflow organization is divided into laminar flow and turbulence (turbulent) 2 types.Laminar flow according to the particle in the air flowing speed of uniform cross section in the parallel to the streamline, turbulence said particles in the air is the uneven flow at the speed of non-uniform flow.
According to the airflow organization
form,
Clean operating room is usually divided into vertical
laminar flow operating room, horizontal laminar flow operating room, turbulence
in the operating room and adjustable cleanliness in the operating
room,
1, vertical laminar flow operating room: smallpox smallpox
vertical laminar flow operating room is hepa filter cloth over the table, the
lower part of the side wall cloth inlet.Parallel vertical, the upper portion of the
airflow into laminar flow state, the lower is the return air mouth tilt, laminar
flow has been destroyed.In the table of the epitaxial areas around
the table and form clean laminar flow area, local area for high
cleanliness.
To ensure operation area cleanliness, efficient air
supply outlet must be sufficient, the area of class I in the operating room
should be greater than 6.2 m2, on the height of 0.8 m air supply velocity should
not be less than 0.25 m/s.。Shadowless lamp is installed in the middle of
the air supply outlet, in order to reduce fan impact air flow, with a small
shield skeleton type shadowless lamp, big back shell shadowless lamp effect on
airflow, unfavorable use.
2、Smallpox smallpox, horizontal laminar flow
operating room 2: horizontal laminar flow operating room is the feature of
horizontal air supply, air supply metope hepa filter cloth, return air in air
distribution across the wall, metope decorate a coarse filter, filter and flow
effect, prevent the indoor floating fibers and duct, dust pollution protection
level after filter, the patient's feet to the air supply outlet, the
anesthesiologist on one side of the head and anaesthesia equipment squarely in
the direction of the wind, in order to prevent the anesthetic gas
contamination.
Horizontal laminar flow operating room of high
efficiency filter, static pressure box, air supply outlet installed in the
operating room on the side, do not take up the operating room height, so the
height on the low side of the operating room can use horizontal laminar flow
way.It occupies large area, in order to overcome the gravity
settling of dust, air supply velocity is higher than the vertical laminar flow
wind speed, not less than 0.3 m/s, namely air output to
increase.
Choose way of laminar flow, associated with the
structure of the operating room.。Experiments show that the vertical laminar flow
bacteria disappear fast, dust concentration is low, but the vertical incision
and airflow direction, and the cutter head doctor in incision on the
wind.And horizontal laminar incision parallel to air flow, so the
horizontal laminar incision of pollution than vertical laminar
flow.Foreign horizontal laminar flow operating room more than
vertical laminar flow operating room, covers an area of the current domestic in
order to save the operating room, vertical laminar flow operating room
use.
3、 turbulence clean
operating room: the filtered clean air from the top or side of several supply
air into the mouth, clean air rapidly spreading around, blended with indoor air,
and the indoor air inlet ruled out, because of the clean air to dilute the air
dust concentration, to meet the requirements of the corresponding clean
level. Cleanroom airflow
turbulence, decorate should be the shortest distance to make clean air wafted to
the operation platform, thereby reducing the likelihood of clean system
polluted, the cleanliness level of up to 1000-100000, this is mainly determined
by the air output, the ventilation rate, ventilation rate reaches 40 times per
hour, the insurable the 1000 level of cleanliness cleanliness, Ⅱ clean operating
room, the standard clean operating room.Send certain, return than a
certain amount of dust in the operating room, operating room spotlessness
(concentrations (low), high cycles.
4、 adjustable cleanliness in the operating room:
the above three kinds of operating room air output is constant, the air flow is
constant in form, operating room air cleanliness is a constant, in using the
management is not flexible, comprehensive utilization is not convenient to the
operating room, is unfavorable to save energy.。In the big surgery, department of management, in
order to improve the utilization rate of the operating room, most of the
operating room arrangement types of surgery will often change, their demand for
cleanliness is also not consistent.
If eye surgery wind speed is low, general
surgery, bone surgery wind speed can be higher.Medical staff and
patients feel each have about wind speed difference, in order to choose the most
comfortable wind speed, so often ask for wind speed adaptive
adjustment.Wind speed change, send air volume change, airflow form
change, indoor air cleanliness is also changing.In order to adapt
to the adjustment of the wind speed, the purification of the clean operating
room should adopt independent air conditioning unit, blower should adopt
frequency control of motor speed control system.
Efficient air
diffuser and return air mouth according to level 100 cleanliness requirements of
the operating room layout design.Fan type and duct size can be the
lower limit of design according to the requirements of grade
100.Fan runs at high speed, the indoor cleanliness level work under
the state in 100, when low speed cleanliness level down to 10000 or less
work.The operating room for the construction of the investment can
be below the standard of cleanliness level 100 operating room, strict definition
of cleanliness is difficult to adapt to the needs of the changes in clinical
practice, according to the actual need, adjust, accepted and approved by the
medical staff.This is the development of frequency conversion
adjustment technology and mature operating room design and function
change.
Supply air laminar flow air supply smallpox smallpox | the operating room technical parameters:
model |
Primary air supply smallpox |
The secondary air supply smallpox |
Tertiary air supply smallpox |
Filtration efficiency |
ㄒ99.99%(0.3um) |
||
The wind speed m/s |
0.450.45 |
0.30.3 |
0.230.23 |
mmSupply air plane size mm |
2600*24002600 * 2400 |
2600*18002600 * 1800 |
2600*14002600 * 1400 |
mmInstallation dimensions in mm |
2680*2480*3502680 * 2480 * 350 |
2680*1880*3502680 * 1880 * 350 |
2680*1480*3502680 * 1480 * 350 |
mmThe flange size mm |
1000 * 200 4only |
500 * 200 4only |
320 * 200 4only |
High efficiency filter box specifications and quantity |
1270 * 666 * 666 2 only |
1270 * 666 * 610 1 only |
1270 * 666 * 610 1 only |
Hepa filter specifications |
610 * 610 * 295 * 4 only |
610 * 610 * 295 * 2 only |
610 * 610 * 295 * 1 only |
mmThe flange size mm |
800*500800 * 500 |
800*500800 * 500 |
500*320500 * 320 |
Use occasions |
Ⅰ grade clean operating room in particular |
Ⅱ level standard clean operating room |
Ⅱ grade clean operating room in general |
Supply air laminar flow air supply smallpox smallpox | the operating room equipment test results:
Air flow (m3 / h) |
90009000 |
1010010100 |
||||
Face the wind (m/s) |
0.250.25 |
0.30.3 |
||||
Turbulence degrees |
0.270.27 |
0.20.2 |
||||
Operation area cleanliness (q/l) |
≥0.5um ≥0.5um |
The maximum |
0.060.06 |
≥0.5um ≥0.5um |
The maximum |
0.060.06 |
statistics |
0.070.07 |
statistics |
0.070.07 |
|||
≥5um ≥5um |
The maximum |
00 |
≥5um ≥5um |
The maximum |
00 |
|
statistics |
00 |
statistics |
00 |
|||
The surrounding area cleanliness (q/l) |
≥0.5um≥0.5um |
The maximum |
0.940.94 |
≥0.5um≥0.5um |
The maximum |
0.590.59 |
statistics |
0.570.57 |
statistics |
0.270.27 |
|||
≥5.0um≥5.0um |
The maximum |
00 |
≥5.0um≥5.0um |
The maximum |
00 |
|
statistics |
00 |
statistics |
00 |
Contact: manager.zhan
Phone: 15928853231
Tel: 028-87849573
Email: 2541565040@qq.com
Add: Chengdu Gaoxin West District Science and Technology Park