CN109804935A - Biological safe type big animal raising device - Google Patents
Biological safe type big animal raising device Download PDFInfo
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- CN109804935A CN109804935A CN201910075334.8A CN201910075334A CN109804935A CN 109804935 A CN109804935 A CN 109804935A CN 201910075334 A CN201910075334 A CN 201910075334A CN 109804935 A CN109804935 A CN 109804935A
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- rearging cage
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- purifying
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Abstract
The invention discloses a kind of biological safe type big animal raising device, including rearging cage unit, the rearging cage unit includes at least upper layer and lower layer；Animal fixing device, is slidably connected in the rearging cage unit and one end is equipped with the driving device for stretching out the rearging cage unit；Powered air-purifying device, Xiang Suoshu rearging cage unit is for clean fresh air；Exhaust gas in the rearging cage unit is discharged and forms negative pressure in rearging cage unit by exhaust-air filter；Monitoring system detects the reduced pressure in the powered air-purifying device and exhaust-air filter operating status and the rearging cage unit.Pass through above-mentioned setting, circulating filtration is carried out to the air in animal raising device by powered air-purifying device and exhaust-air filter, it is lasting that clean fresh air is provided, and animal fixing device is operated since animal stable can be driven at rearging cage mouth by the setting of driving device convenient for personnel.
Description
Technical field
The present invention relates to Bioexperiment equipment, in particular to biological safe type big animal raising device.
Background technique
Animal feeding is inevitable a part of experimental provision in biology, the research of many clinical tests or drug
Require to do corresponding test in animals to confirm clinical response, therefore one kind is fully functional, operation is convenient for designing
Raising animal device be very it is necessary to.
Wherein, according to biological safety protection performance, biological safe type breeding apparatus is divided into non-hermetically sealed formula and two kinds of air hermetic,
In terms of its main distinction essentially consists in device structure, disinfection way, air-tightness requirement.But in zoopery work, to band
The animal of germ of being infectious is raised and is tested, and most important work is to prevent operator's virus infection, controls cause of disease
To external diffusion.Therefore, it is necessary to animal feeding cage tool is arranged in subnormal ambient.The experimental implementations such as have an injection, be administered pass through negative pressure
Operation window before cabinet carries out, while being necessary to ensure that the windstream of operation window, ensures the work safety of experiment operator.
But since China lacks corresponding standard and industry standard for the design of above-mentioned big animal raising device, cause
So far again without specific references object, be easy to cause in the market corresponding big animal raising device it is all kinds of, product matter
It measures and function is also irregular, therefore it is also required to provide one kind to obtain industry approval, reliable in quality, multiple functional biology
Safety-type big animal raising device.
Summary of the invention
In view of the deficiencies of the prior art, the present invention intends to provide a kind of biological safe type big animal raising dress
It sets, securely and reliably, operator's operation is convenient.
Above-mentioned technical purpose of the invention has the technical scheme that a kind of big animal of biological safe type
Breeding apparatus, including rearging cage unit, the rearging cage unit include at least upper layer and lower layer；
Animal fixing device, is slidably connected in the rearging cage unit and one end is equipped with the driving for stretching out the rearging cage unit
Device；Powered air-purifying device, Xiang Suoshu rearging cage unit is for clean fresh air；
Exhaust gas in the rearging cage unit is discharged and forms negative pressure in rearging cage unit by exhaust-air filter；
Monitoring system detects negative in the powered air-purifying device and exhaust-air filter operating status and the rearging cage unit
Pressure degree.
By using above-mentioned technical proposal, rearging cage unit includes at least upper layer and lower layer, is conducive to the group for meeting big animal
The requirement of residence property, animal fixing device is equipped with the driving device stretched out outside rearging cage unit, therefore can help operator
The fixation that big animal is stable is improved into safety convenient for operation.The cooperation of powered air-purifying device and exhaust-air filter can not only
Enough maintain that there is lasting clean fresh air inside rearging cage unit, and the negative pressure maintained can prevent internal bacterium or pathogen
It is excessive, for ensureing that the health of operator provides good guarantee.
The further setting of the present invention are as follows: the rearging cage unit be equipped with it is multiple, multiple rearging cage units be connect
Body setting, and separated between the adjacent rearging cage unit using the preferable organic material of perspectivity.
It can be in powered air-purifying device and row by multiple conjuncted settings of rearging cage unit by using above-mentioned technical proposal
Unified circulation Fresh air handing is carried out under the operation of wind filter device, while each other with the preferable organic material point of the transparency
Every also complying with the gregarious requirement of big animal.
The further setting of the present invention are as follows: the rearging cage unit offers perforative operation window, the operation window
On be rotatably connected to luffer boards, be additionally provided with fastener between the luffer boards and the operation window.
The further setting of the present invention are as follows: the bottom of the rearging cage unit is additionally provided with collection tray, the rearging cage list
The collecting dung mouth with the collection tray sustained height is offered on the side wall of member, the collection tray is slidably connected to described
In rearging cage unit and sliding plug is in the collecting dung mouth, is also rotatably connected to collection on the collecting dung mouth and turns over
Lid also is provided with fastener between the collection flip lid and the rearging cage unit.
By using above-mentioned technical proposal, operation window can carry out feeding, experiment, and collecting dung mouth can replace receipts
Collect pallet, the excrement being convenient to clean inside rearging cage maintains the feeding environment of clean hygiene, and fastener can be opened what is opened up
Mouth closing is placed primate and is opened voluntarily, enhances the globality and safety of rearging cage unit.
The further setting of the present invention are as follows: the fastener includes slide bolt and lockset, and the lockset can be by the cunning
Dynamic bolt is fixed.
By using above-mentioned technical proposal, slide bolt is common locking form, durable and simple and convenient, and is added
Upper lockset then can completely guarantee the closing of operation window and collecting dung mouth, enhance whole stability.
The further setting of the present invention are as follows: the powered air-purifying device includes powered air-purifying plenum chamber, pressure fan and air-supply
Pipe, the powered air-purifying plenum chamber are connected to the rearging cage unit, and the air supply tube is connected to the pressure fan and powered air-purifying
Plenum chamber.
By using above-mentioned technical proposal, powered air-purifying plenum chamber the air of pumping can be purified in time for fresh air and and
When be provided in rearging cage unit, and noise is lower, and long-play will not influence the normal rest of big animal.
The further setting of the present invention are as follows: the exhaust-air filter includes exhaust blower and exhaust duct, the exhaust blower
It is connected to the rearging cage unit, the rearging cage unit is additionally provided with return air filtering far from the side of the powered air-purifying plenum chamber
Plenum chamber, the return air filtering plenum chamber are equipped with backwind tube, and the other end of the backwind tube is connect with the pressure fan.
By using above-mentioned technical proposal, return air filtering plenum chamber is provided in exhaust-air filter can be by the useless of discharge
Gas filters the requirement for reaching discharge in time, reduces pollution, while treated for part that gas enters return air duct re-circulation makes
With, it is possible to reduce the loss of heat can also reduce the workload of powered air-purifying plenum chamber and pressure fan, extend and use the longevity
Life.
The further setting of the present invention are as follows: the luffer boards, operation window, collecting dung mouth, collect flip lid between be equipped with
Sealing strip.
By using above-mentioned technical proposal, relatively stable negative pressure can be maintained under idle state equipped with sealing strip
Environment reduces the possibility of internal gas accidental release, improves safety.
In conclusion there is complete circulation fresh air system the invention has the following advantages: globality is strong, it can
It keeps maintaining certain negative pressure while big animal raising device inner clean, reduces internal bacterium or specialized hospital's leakage, improve safety
Property, function is complete, easy to operate；Animal husbandry cage unit is arranged upper layer and lower layer simultaneously, it is multiple between be well arranged for perspectivity,
The gregarious requirement for meeting big animal, meets the requirement of big zoopery as far as possible.
Detailed description of the invention
Fig. 1 is the positive structure schematic of the present embodiment；
Fig. 2 is the corresponding protective housing part planar structural representation of single rearging cage unit；
Fig. 3 is the structural schematic diagram of single rearging cage unit.
Appended drawing reference: 1, outer cage；2, protective housing；3, exhaust-air filter；31, exhaust blower；32, exhaust duct；33, return air
Filter plenum chamber；34, backwind tube；4, powered air-purifying device；41, pressure fan；42, powered air-purifying plenum chamber；43, air supply tube；5,
Operation window；51, luffer boards；52, fastener；6, collecting dung mouth；61, it renovates；7, rearging cage unit；71, stripper plate；72, it drives
Dynamic device；73, collection tray.
Specific embodiment
A kind of biological safe type big animal raising device, as shown in figs. 1 and 3, including interior cage and outer cage 1, outer cage 1 are placed on interior
Outside cage, outer cage 1 includes protective housing 2 and the powered air-purifying device 4 and exhaust-air filter 3 that are installed at left and right sides of protective housing 2, and
Powered air-purifying device 4 and exhaust-air filter 3 are connect with interior cage.
As shown in figs. 1 and 3, interior cage includes multiple rearging cage units 7, and each rearging cage unit 7 is then isolated into upper layer and lower layer,
Operation window 5 is offered on each layer of corresponding protective housing 2 of rearging cage unit 7, is rotatably connected to luffer boards on operation window 5
51, and fastener 52 is also equipped between luffer boards 51 and operation window 5, fastener 52 includes being installed on luffer boards 51 and operation window
Being fixedly connected between luffer boards 51 and operation window 5 can be realized by slide bolt in pair of sliding bolt on 5, and in order to
Stable and safety is further strengthened, lockset is additionally provided on slide bolt, the slide bolt after grafting can further be locked
It is fixed.And likewise, operation window 5 is rotationally connected on protective housing 2 also by hinge, and between operation window 5 and protective housing 2
It is fixedly connected by what fastener 52 was realized, i.e., not only there is slide bolt also to there is lockset to be locked.In order to facilitate in observation
The actual conditions in portion, operation window 5 are made of tempered glass isolation board.
As shown in Figures 2 and 3, it is arranged between the upper layer and lower layer of each rearging cage unit 7 for intercommunication, and bilevel work
Window 5 is opened in the right and left of the same side, and also slides in the bottom of rearging cage unit 7 and be placed with one piece of collection tray 73, raises
The collecting dung mouth 6 offered on the side wall of cage unit 7 with 73 sustained height of collection tray is supported, collection tray 73 can slide slotting
It is connected in collecting dung mouth 6, it can taken out collection tray 73 by collecting dung mouth 6.At same collecting dung mouth 6
It is rotatably connected to collection flip lid 61, collects and is again provided with fastener 52, fastener 52 between flip lid 61 and collecting dung mouth 6
It equally include slide bolt and lockset.
In order to meet the gregarious requirement of big animal, the isolated material between each rearging cage unit 7, which is that perspectivity is good, to be had
Machine material, or use tempered glass isolation board.
As shown in figs. 1 and 3, since the protected working of big animal raising device focuses on preventing operator from infecting disease
Poison controls cause of disease to external diffusion.Therefore, it is necessary to animal feeding cage tool is arranged in subnormal ambient.The experiments behaviour such as have an injection, be administered
Make to carry out by the operation window 5 before negative pressure cabinet, while being necessary to ensure that the windstream of operation window 5, ensures experimental implementation people
The work safety of member.Therefore, powered air-purifying device 4 includes powered air-purifying plenum chamber 42, pressure fan 41 and air supply tube 43, is blown
Filter plenum chamber 42 is installed on the left side side wall of protective housing 2 and is connected to rearging cage unit 7, and air supply tube 43 is connected to 41 He of pressure fan
Powered air-purifying plenum chamber 42.Exhaust-air filter 3 includes exhaust blower 31 and exhaust duct 32, exhaust blower 31 and rearging cage unit 7
It is connected to, return air filtering plenum chamber 33 is additionally provided in the right sidewall of protective housing 2, return air filters plenum chamber 33 and is equipped with backwind tube
34, the other end of backwind tube 34 is connect with pressure fan 41.
By above structure, powered air-purifying plenum chamber is all rearging cages in protective housing 2 under the action of pressure fan 41
Unit 7 provides clean fresh air, and on the one hand the exhaust gas generated in rearging cage unit 7 then takes discharge away by exhaust blower 31, another
Part is taken away by backwind tube 34 by pressure fan 41 and filters 33 filtration treatment of plenum chamber by return air, recycles.Certainly, such as
Shown in Fig. 1 and 3, one end of exhaust blower 31 is connected with 3 (not shown) of exhaust-air filter, and exhaust-air filter 3 then connects
It passes through in protective housing 2, is connected to setting with all rearging cage units 7, and the other end of exhaust blower 31 is then connected by pipeline
To integrated air exhaust pipeline, will be by treated the gas discharge chamber of exhaust-air filter 3 outside.
Due to the inside of big animal raising device, i.e., the offer of fresh air and the row of exhaust gas are not only maintained inside protective housing 2
Out, a degree of negative pressure is also controlled, therefore is also equipped with detection system detection 4 He of powered air-purifying device on protective housing 2
Reduced pressure in 3 operating status of exhaust-air filter and rearging cage unit 7, detection system include differential pressure indicator and PLC control cabinet,
For implementing to feed back the air pressure inside protective housing 2, convenient for artificially adjusting the air quantity of air inlet air draft, the adjusting control to pressure difference is realized
System.
Further, in order to reinforce the leakproofness of protective housing 2, luffer boards 51, collecting dung mouth 6, are collected and are turned over operation window 5
It is equipped with sealing strip (not shown) between lid 61 and protective housing 2, maintains closed state as far as possible when closed, prevents inside
Cause of disease or bacterium outflow.
In actual design, as shown in figs. 1 and 3, isolator, that is, rearging cage unit 7 frame uses 304/2B stainless steel plate system
Make, organic glass operation window is also equipped on protective housing 2, offers three pairs on organic glass windowHandle hole
For experimental implementation；Corresponding 2 width of protective housing of single rearging cage unit 7 is 800mm, and organic glass can pacify after subtracting frame
The width of dress is 720mm, and handle hole designs larger as far as possible on this width, convenient for operation.It is designed by 4 traditional holes, hole
Diameter maximum can only achieveAnd aperture spacing is less than 200mm, handle hole secundly is not or not middle position.Due to carrying disease germs
The operator of experiment will wear special isolation clothes, larger at cuff, handle hole operation less than normal is very inconvenient.It improves
Operation aperture reaches afterwardsHole is opened in middle position, and it is more convenient to operate.
Powered air-purifying plenum chamber and 2 connectivity part of protective housing are located at top of the box, and return air filters plenum chamber 33 and protective housing 2
Junction is located at the bottom of box, and the junction of exhaust-air filter 3 and protective housing 2 also is located at the bottom of cabinet, and is additionally provided with
More branch pipe(tube) (not shown)s, branch pipe(tube) nozzle are installed on luffer boards 51, operation window 5, collecting dung mouth 6, collect flip lid
61 and handle hole lower opening portion, in this way open when operated during, can significantly reduce internal gas
Outflow, improve leakproofness and safety.
Specifically, as shown in figs. 1 and 3, be also slidably fitted in each rearging cage unit 7 vertical stripper plate 71 and with squeeze
The driving device 72 that pressing plate 71 is fixedly connected, driving device 72 stretch out the outside that rearging cage unit 7 is located at protective housing 2, and setting is squeezed
Pressing plate 71 is to be able to shift onto big animal to be fixed in front of handle hole, operates convenient for personnel, and driving device 72 can be with
It can also directly be pusher cylinder for common lever arm of force device, one end is fixedly connected with stripper plate 71, and the other end is fixed
It is mounted on protective housing 2.
To guarantee fresh air standard in raising area, the first low efficient filter and first are set in the air inlet of powered air-purifying plenum chamber
HEPA enters raising area from the top of protective housing 2 by this two layers of filtered air, and air purity has reached GBl4925-
2010 standard.The second low efficient filter, second, third HEPA mistake of installation can be first passed through when the exhaust gas discharge of animal discharge
Filter, while two HEPA that are installed in series on exhaust blower 31, can reach 99.99% filter efficiency (0.3 μm of partial size).Protective housing 2
20W headlamp is housed in vivo, is convenient for zoopery, safeguard work illumination meets GBl4925-2010 standard, and drinking-water is designed as certainly
Dynamic water fountain, water holding box make of stainless steel, convenient for disinfection.
By above structure, obtained biological safe type big animal raising device can satisfy most of requirement, knot
Structure stabilization function is complete, highly-safe easy to operate, promotional value with higher, simultaneously as being related to the feeding of big animal
Support and experiment, it is also closely bound up with operator's health, therefore also need to inspect periodically equipment, by indices come
Make corresponding adjust.
Testing index and method:
(1) tightness detection is according to 2 grades of sealing grades, by standard ISO 10648-2:1994 requirement should use pressure-decay method into
Row test.The principle of pressure-decay method is that the attenuation change of pressure in equipment under test is utilized in equipment under test constancy of volume
Test slip.Detection of negative pressure is used when detection.
(2) rate of ventilation detection rate of ventilation is to be held by the air output hourly of measuring unit cage divided by net inside cage
Product obtains.The measurement of air output generallys use air quantity shield or airspeedometer is tested, but air output and air-supply due to unit cage
Mouth is smaller, is unsuitable for measuring using air quantity shield, therefore, airspeedometer can only be used in blasting high-efficiency filter outlet air surface 10
Wind speed is measured at~15cm or in air inlet.When measurement, uniform stationing is carried out in test section, is averaged calculating air quantity.
For circular duct, section should be measured by homalographic ring method and determines measuring point number；When air port is rectangle or is rectangular, can incite somebody to action
Air port section is divided into several homalographics square, is measured respectively in each square center point, and measuring point should not be less than 6
It is a.
(3) static pressure difference detection unit cage and the relative pressure in place room can directly be measured with pressure difference meter.Tested device
In stablizing under normal running conditions, it is separately connected inside animal isolator with pressure difference meter and external environment directly measures isolator
Static pressure difference；Before test, the tightness and rate of ventilation of device should pass through detection.
(4) using smoke generating device visible smoke occurs for operation window air flow direction, outside operation window at about 38mm
Pass through along the periphery of entire operation window, allows smog along the entire boundary diffusion of operation window, observe smog flow direction.Specifically
It is required that referring to YY 0569-2011 " II grade of Biohazard Safety Equipment ".
(5) operation window air-flow average speed directly measures operation window sectional wind velocity using anemobiagraph, when measurement, each column
It at least measures at 3 points, at least measures 5 column, every column pitch is not more than 0.15m, averages.Specific requirement is referring to YY 0569-2011
The requirement of II grade of B2 type Biohazard Safety Equipment in " II grade of Biohazard Safety Equipment ".
(6) high efficiency particulate air filter integrity detection, which is used, carries out high efficiency particulate air filter using the Efficiency testing method of physics aerosol
Integrity detection judges whether filter leaks by total filter efficiency of testing filters.Utilize particle counting, root
Tested filter upstream and downstream number concentration is calculated according to sampling time and sampling flow, then calculates filter efficiency, for
The integral filter efficiency of 0.3~0.5 μm of particle is not lower than 99.995%.Efficiency testing method must use manmade dust as test
Aerosol, meanwhile, isolator equipment must be equipped with sampled upstream mouth and sampled downstream mouth.Sampled upstream and sampled downstream must be through
It crosses aerosol and mixes test, to prove that sampled upstream and sampled downstream all have representativeness, otherwise, it is possible that causing test result
Inaccuracy.
(7) noise testing measuring point is located inside device, and arrangement is determined according to device inner space size, while measuring point exists
Horizontal plane locating for experimental animal is arranged.By sound level meter be directly placed at cage bottom portion (survey before will fill water in drinking bottle, to prevent
It only vibrates).Specific targets require " real referring to GB 14925-2010 " experimental animal environment and facility " and GB 50447-2008
Test animal facility Building technology specification ".Noise level measurement the ventilation and air conditioning system in room and facility should be in surely where device
Determine normal operating condition.When detection, it is ensured that it is installed on normal operating condition and has operated normally certain time, and its tightness,
Air output and its detection is passed through with the relative pressure in place room and meets relevant criterion requirement.
(8) two kinds of illumination patterns are arranged in illumination test altogether: one kind is animal illumination, and another kind is work illumination.Animal is shone
Degree is the life illumination (requirement of the different animals to life illumination is different) of experimental animal, and the illumination that works be staff into
Illumination when row normal operating, both illumination are intended to be detected, wherein life illumination will be under room light closed state
It is tested.Illumination photometer is directly placed at cage bottom portion middle position to test.Specific index request is referring to GB14925-
2010 " experimental animal environment and facilities " and GB50447-2008 " Laboratory Animal Facility Building technology specification ".
The operation standard of instrument and equipment is also provided simultaneously as reference, and content is as follows:
Test method:
(1) visual examination: feel, visually；
(2) dimension measurement: reach technique requirement with the general gage measuring for meeting precision；
(3) shell protection grade measures: carrying out by the regulation of GB4208-1998；
(4) it electric appliance strength test: is carried out by GB4706.1-1,998 16.3 regulation；
(5) it leakage current test: is carried out by GB4706.1-1,998 16.2 regulation；
(6) it wiechert method: is carried out by GB4706.1-1,998 27.5 regulation；
(7) ambient temperature and humidity measures: carrying out by the regulation of appendix A in GBl4925-2001；
(8) it ambient windstream velocity determination: is carried out by the regulation of Appendix B in GBl4925-2001；
(9) environment rate of ventilation measures: carrying out by the regulation of appendix C in GBl4925-2001；
(10) it environmental gradient pressure difference measuring method: is carried out by the regulation of Appendix D in 6B14925-2001；
(11) it the detection method of surrounding air cleanliness: is carried out by the regulation of annex E in GBl4925-2001；
(12) surrounding air falls bacterium number detection method: carrying out by the regulation of annex F in GBl4925-2001；
(13) it environment noise test method: is carried out by the regulation of annex G in GBl4925-2001；
(14) it illumination photometry method in environment: is carried out by the regulation of annex H in GBl4925-2001；
(15) it environment ammonia concentration determination method: is carried out by the regulation of annex I in GBl4925-2001.
By the biological safe type big animal raising device of design and the evaluation index and method of formulation and to equipment instrument
The operating condition content of the test of device can provide perfect, good, the high device of universality and be matched for big animal raising
The standard of set is conducive to the development for promoting industry.
Claims (8)
1. a kind of biological safe type big animal raising device, it is characterised in that: including rearging cage unit (7), the rearging cage list
First (7) include at least upper layer and lower layer；
Animal fixing device, is slidably connected in the rearging cage unit (7) and one end is equipped with and stretches out the rearging cage unit (7)
Driving device (72)；
Powered air-purifying device (4), Xiang Suoshu rearging cage unit (7) is for clean fresh air；
Exhaust-air filter (3), by the interior exhaust gas discharge of the rearging cage unit (7) and the formation negative pressure in rearging cage unit (7)；
Monitoring system detects the powered air-purifying device (4) and exhaust-air filter (3) operating status and the rearging cage unit
(7) reduced pressure in.
2. biological safe type big animal raising device according to claim 1, it is characterised in that: the rearging cage unit
(7) it is equipped with multiple, multiple rearging cage units (7) are disjunctor setting, and are adopted between the adjacent rearging cage unit (7)
Separated with the preferable organic material of perspectivity.
3. biological safe type big animal raising device according to claim 2, it is characterised in that: the rearging cage unit
(7) offer perforative operation window (5), be rotatably connected to luffer boards (51) on the operation window (5), the luffer boards (51) with
Fastener (52) are additionally provided between the operation window (5).
4. biological safe type big animal raising device according to claim 3, it is characterised in that: the rearging cage unit
(7) bottom is additionally provided with collection tray (73), is offered on the side wall of the rearging cage unit (7) and the collection tray (73)
The collecting dung mouth (6) of sustained height, the collection tray (73) is slidably connected in the rearging cage unit (7) and sliding is inserted
It is connected in the collecting dung mouth (6), collection flip lid (61), the collection is also rotatably connected on the collecting dung mouth (6)
Fastener (52) also are provided between flip lid (61) and the rearging cage unit (7).
5. biological safe type big animal raising device according to claim 4, it is characterised in that: fastener (52) packet
Slide bolt and lockset are included, the lockset can fix the slide bolt.
6. biological safe type big animal raising device according to claim 1, it is characterised in that: the powered air-purifying device
(4) include powered air-purifying plenum chamber (42), pressure fan (41) and air supply tube (43), the powered air-purifying plenum chamber (42) with it is described
Rearging cage unit (7) connection, the air supply tube (43) are connected to the pressure fan (41) and powered air-purifying plenum chamber (42).
7. biological safe type big animal raising device according to claim 6, it is characterised in that: the exhaust-air filter
It (3) include exhaust blower (31) and exhaust duct (32), the exhaust blower (31) is connected to the rearging cage unit (7), the feeding
It supports cage unit (7) and is additionally provided with return air filtering plenum chamber (33), the return air far from the side of the powered air-purifying plenum chamber (42)
It filters plenum chamber (33) and is equipped with backwind tube (34), the other end of the backwind tube (34) is connect with the pressure fan (41).
8. biological safe type big animal raising device according to claim 4, it is characterised in that: the luffer boards (51), work
Make window (5), collecting dung mouth (6), collect flip lid (61) between be equipped with sealing strip.
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| CN201910075334.8A CN109804935A (en) | 2019-01-25 | 2019-01-25 | Biological safe type big animal raising device |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112504324A (en) * | 2019-09-16 | 2021-03-16 | 武汉世纪久海检测技术有限公司 | Method for detecting air exchange times of independent ventilation cage box |
| CN113170737A (en) * | 2021-05-25 | 2021-07-27 | 姜楠 | Experimental animal transportation system and method |
| CN113261540A (en) * | 2021-05-14 | 2021-08-17 | 嵊州陌桑高科股份有限公司 | Air environment control system that returns under breed room top |
| CN113678739A (en) * | 2021-08-25 | 2021-11-23 | 广东唯金智能环境科技有限公司 | Livestock breeding house environment control system and control method thereof |
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| CN112504324A (en) * | 2019-09-16 | 2021-03-16 | 武汉世纪久海检测技术有限公司 | Method for detecting air exchange times of independent ventilation cage box |
| CN113261540A (en) * | 2021-05-14 | 2021-08-17 | 嵊州陌桑高科股份有限公司 | Air environment control system that returns under breed room top |
| CN113261540B (en) * | 2021-05-14 | 2022-08-12 | 嵊州陌桑高科股份有限公司 | Air environment control system that returns under breed room top |
| CN113170737A (en) * | 2021-05-25 | 2021-07-27 | 姜楠 | Experimental animal transportation system and method |
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