CN202813604U - Intermittent air return device for experimental animal facility - Google Patents
Intermittent air return device for experimental animal facility Download PDFInfo
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- CN202813604U CN202813604U CN 201220329618 CN201220329618U CN202813604U CN 202813604 U CN202813604 U CN 202813604U CN 201220329618 CN201220329618 CN 201220329618 CN 201220329618 U CN201220329618 U CN 201220329618U CN 202813604 U CN202813604 U CN 202813604U
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Abstract
Disclosed is an intermittent air return device for an experimental animal facility. A fresh air inlet section 1, a coarse filter 2, a preheating coil section 3, an air feeder section 4, a flow equalizing section 5, a medium efficiency filter 6, a maintenance section 7, a cold and hot coil section 10, a reheating coil section 11, a humidifying section 12 and an air supply outlet section 13 are sequentially connected to form a basic portion for treating outdoor fresh air supplied into an animal house. An exhaust fan section 16, a flow equalizing section 18, an activated carbon filter 15, a medium efficiency filter 14 and an air exhaust outlet section 17 are sequentially connected to form a basic portion for treating return air in the animal house and exhausting the return air into the atmosphere. An air supply volume regulating valve 20 is mounted between the coarse filter 2 and the preheating coil section 3, and an air return volume regulating valve 19 is mounted in the air exhaust outlet section 17 and is linked with the air supply volume regulating valve 20. By the aid of the intermittent air return device, accumulation of contaminants in the facility can be eliminated, the animal house has a high-quality environment, and energy can be effectively saved.
Description
Technical field
The utility model relates to Laboratory Animal Facility and is interrupted air-returning device, be a kind of can be for Animal House provides high-quality environment, again can effectively energy-conservation technology.
Background technology
Because the environment control of the Laboratory Animal Facility of SPF (no-special pathogen) level requires higher, therefore in the design and running process of SPF level Laboratory Animal Facility in order to meet the demands, guarantee environmental quality, so that the hot procedure for wet processing of Laboratory Animal Facility air-conditioning system and operation control have unique requirement.
At present the environment control unit of traditional SPF Animal House as shown in Figure 1, whole device is by new wind entrance 1, low efficient filter 2, preheating plate pipeline section 3, blower section 4, flow equalization section 5, medium air filtration section 6, maintenance section 7, full recuperation of heat runner 8, flow equalization section 9, cold-heated plate pipeline section 10, hot coil section 11, humidifier section 12, air-supply wind outlet section 13, filter 14, active carbon filter 15, exhaust blower section 16, air draft wind outlet section 17, air inlet 21, air outlet 22, indoor return air inlet 23, exhaust outlet 24 are interconnected to constitute again.Outdoor new wind is directly sent between Animal House by air outlet 22 through processing, and the indoor return air of Animal House enters indoor return air inlet 23, enters atmosphere through processing.
There is following problem in the indoor air quality controlling run of the environment control unit of above-mentioned traditional SPF Animal House:
(1) on the air-treatment mode: moisture dispersed amount is large in the Laboratory Animal Facility, and in order to keep relative humidity, so that the air-treatment machine dew point of Laboratory Animal Facility is low, it is large that the new wind of unit is processed energy consumption.Adopt simultaneously the air-treatment mode of degree of depth cooling and dehumidifying reheat-type, caused cold and hot amount to offset consumes energy.(2) Laboratory Animal Facility environmental requirement height, and the temperature in each room needs independent control, existing terminal reheat-type temperature control mode power consumption, and can only improve terminal wind pushing temperature, can not guarantee the temperature control in each room.(3) Laboratory Animal Facility generally adopts the all-fresh air operation, and rate of ventilation is high, and resh air requirement is large.The processing energy consumption of new wind is large, send, the load of exhaust equipment is very large.(4) be the infringement of control suspension microorganism to institute's letting animals feed, must require to install thick effect, middle effect and high efficiency particulate air filter according to different in the supply air system of facility, and also will process air draft, remove foul smell (ammonia), so that the increase of supply and exhaust resistance, and power consumption also increases.
At present, although various countries' standard all regulation allow to be no more than 50% return air, almost all adopt 100% outdoor new wind DC mode in important Laboratory Animal Facility system.Although this is because analyze in theory and be no more than the level of pollution that 50% return air may cause and allow, in fact pollute constantly accumulation in the Laboratory Animal Facility, be difficult to elimination.
Summary of the invention
The utility model purpose is the problem that exists for present Animal House environment control device, provide a kind of Laboratory Animal Facility to be interrupted air-returning device, make it can: 1. guarantee with all-fresh air Laboratory Animal Facility to be carried out " washing away " for some time every day, eliminate the accumulation of facility internal contamination thing.2. guarantee that Animal House has high-quality environment, so that the temperature of environment, humidity, cleanliness factor, falling bacterium number, ammonia concentration, ventilation volume and air velocity should be in allowed limits.3. guaranteeing under the high-quality environment of Animal House, effectively energy-conservation.
Laboratory Animal Facility described in the utility model is interrupted air-returning device and is comprised: new wind entrance 1, low efficient filter 2, preheating plate pipeline section 3, blower section 4, flow equalization section 5, medium effeciency filter 6, maintenance section 7, cold-heated plate pipeline section 10, again hot coil section 11, humidifier section 12, air-supply wind outlet section 13, medium effeciency filter 14, active carbon filter 15, exhaust blower section 16, air draft wind outlet section 17, flow equalization section 18 and fresh wind port 21, air outlet 22, indoor return air inlet 23, exhaust outlet 24.New wind entrance 1, low efficient filter 2, preheating plate pipeline section 3, blower section 4, flow equalization section 5, medium effeciency filter 6, maintenance section 7, cold-heated plate pipeline section 10, hot coil section 11, humidifier section 12, air-supply wind outlet section 13 connect the foundation that formation is processed the outdoor new wind of sending into Animal House successively again.New wind entrance 1 connects fresh wind port 21.Air-supply wind outlet section 13 connects air outlet 22.Exhaust blower section 16, flow equalization section 18, active carbon filter 15, medium effeciency filter 14, air draft wind outlet section 17 connect successively, consist of the foundation of the return air of Animal House being processed and entered atmosphere.Air draft wind outlet section 17 is connected with exhaust outlet 24.Exhaust blower section 16 is connected with indoor return air inlet 23.Air-supply volume damper 20 is housed between low efficient filter 2 and the preheating plate pipeline section 3.Return air volume damper 19 is housed in the air draft wind outlet section 17.
Return air volume damper 19 and air-supply volume damper 20 link mutually, adopt the control of mechanical type or electronic type.
Air-supply wind outlet section 13 is communicated with Animal House by air outlet 22.Exhaust blower section 16 is communicated with Animal House by indoor return air inlet 23.
Parts in the utility model all can be selected existing product.The mutual interlock of return air volume damper 19 and air-supply volume damper 20 also can be selected known technology.
The utility model Laboratory Animal Facility is interrupted air-returning device and is compared with the environment control unit of traditional SPF Animal House and have following characteristics:
1. adopt and be interrupted return air, guarantee with all-fresh air Laboratory Animal Facility to be carried out " washing away " for some time every day, eliminate the accumulation of facility internal contamination thing.
2. guarantee that Animal House has high-quality environment, outdoor new wind and indoor return air all pass through strict processing, thus guarantee indoor environment temperature, humidity, cleanliness factor, fall the parameters such as bacterium number, ammonia concentration, ventilation volume and air velocity all in allowed limits.
3. adopt and be interrupted return air, reduce directly new wind consumption, the heap(ed) capacity of unit calculates refrigerating capacity by the air returning ratio of determining during according to the highest outdoor conditions, and is so just little much than the refrigerating capacity that calculates by all-fresh air, also reduce simultaneously the maximum of unit and processed enthalpy difference, effectively energy-conservation.
Description of drawings
The structural map of the environment control unit of the SPF Animal House that Fig. 1 is traditional.
Fig. 2 Laboratory Animal Facility described in the utility model is interrupted the structural map of air-returning device.
Among the figure, 1 new wind entrance 2 low efficient filters 3 preheating plate pipeline sections 4 blower sections 5 flow equalization sections 6 medium air filtration sections 7 maintenance sections 8 full recuperation of heat runner 9 flow equalization sections 10 cold-heated plate pipeline sections 11 are hot coil section 12 humidifier sections 13 air-supply wind outlet sections 14 filters 15 active carbon filters 16 exhaust blower sections 17 air draft wind outlet sections 18 flow equalization sections 19 return air volume dampers 20 air-supply volume dampers 21 fresh wind ports 22 air outlets 23 indoor return air inlet 24 exhaust outlets again.
The specific embodiment
As shown in Figure 2, Laboratory Animal Facility described in the utility model is interrupted air-returning device and is comprised: new wind entrance 1, low efficient filter 2, preheating plate pipeline section 3, blower section 4, flow equalization section 5, medium effeciency filter 6, maintenance section 7, cold-heated plate pipeline section 10, again hot coil section 11, humidifier section 12, air-supply wind outlet section 13, medium effeciency filter 14, active carbon filter 15, exhaust blower section 16, air draft wind outlet section 17, flow equalization section 18 and fresh wind port 21, air outlet 22, indoor return air inlet 23, exhaust outlet 24.New wind entrance 1, low efficient filter 2, preheating plate pipeline section 3, blower section 4, flow equalization section 5, medium effeciency filter 6, maintenance section 7, cold-heated plate pipeline section 10, hot coil section 11, humidifier section 12, air-supply wind outlet section 13 connect the foundation that formation is processed the outdoor new wind of sending into Animal House successively again.New wind entrance 1 connects fresh wind port 21.Air-supply wind outlet section 13 connects air outlet 22.Air outlet 22 is communicated with Animal House.Exhaust blower section 16, flow equalization section 18, active carbon filter 15, medium effeciency filter 14, air draft wind outlet section 17 connect successively, consist of the foundation of the return air of Animal House being processed and entered atmosphere.Air draft wind outlet section 17 is connected with exhaust outlet 24.Exhaust blower section 16 is connected with indoor return air inlet 23.Indoor return air inlet 23 is communicated with Animal House.Air-supply volume damper 20 is housed between low efficient filter 2 and the preheating plate pipeline section 3.Return air volume damper 19 is housed in the air draft wind outlet section 17.Return air volume damper 19 and air-supply volume damper 20 link mutually, adopt the control of mechanical type or electronic type.
The method of operation of being interrupted air-returning device below in conjunction with described Laboratory Animal Facility is described further the utility model:
In summer, set a critical-temperature (method is definite frequently by temperature) according to the outdoor climate conditions of locality.When outdoor temperature when critical-temperature is following, by the effect of control valve, system is under the all-fresh air pattern and moves, room air directly is discharged into outdoor.When in case outdoor temperature surpasses critical-temperature, be transformed into the return air pattern by valve, the part room air (less than air-supply 50%) fillter section that can consist of through medium effeciency filter and active carbon filter to be to filter out particle and the ammonia in the return air, by volume damper 19, then return the air-conditioning unit, the new wind of mixing portion (be not less than air output 50%) by process send into again indoor.When outdoor temperature is reduced to critical-temperature when following again, system converts back the all-fresh air pattern again.Return air volume damper 19 and air-supply volume damper 20 adopt interlock control, Opposite direction connection, and during one of them standard-sized sheet, the another one full cut-off, thus guarantee the stable of air output.The return air pattern occurs over just outdoor temperature and surpasses in the short time of critical-temperature, among one day along with the arriving at night or the decline of temperature, system can rotate back into 100% outdoor new wind DC mode, guarantee with all-fresh air Laboratory Animal Facility to be carried out " washing away " for some time every day, eliminate the accumulation of facility internal contamination thing, meet the arriving of second day with good air quality.Winter same principle, when outdoor temperature was higher than the critical-temperature of setting, system adopted the all-fresh air operation, when being lower than critical-temperature, adopted the return air pattern.After adopting this measure, calculate refrigerating capacity etc. by the air returning ratio of determining when the heap(ed) capacity of unit should be according to the highest outdoor conditions, so just little a lot of than the refrigerating capacity that calculates by all-fresh air, also reduce the maximum of unit simultaneously and processed enthalpy difference, effectively energy-conservation.
Claims (3)
1. a Laboratory Animal Facility is interrupted air-returning device, it is characterized in that: comprising: new wind entrance (1), low efficient filter (2), preheating plate pipeline section (3), blower section (4), flow equalization section (5), medium effeciency filter (6), maintenance section (7), cold-heated plate pipeline section (10), hot coil section (11) again, humidifier section (12), air-supply wind outlet section (13), medium effeciency filter (14), active carbon filter (15), exhaust blower section (16), air draft wind outlet section (17), flow equalization section (18) and fresh wind port (21), air outlet (22), indoor return air inlet (23), exhaust outlet (24); New wind entrance (1), low efficient filter (2), preheating plate pipeline section (3), blower section (4), flow equalization section (5), medium effeciency filter (6), maintenance section (7), a cold-heated plate pipeline section (10), hot coil section (11), humidifier section (12), air-supply wind outlet section (13) connect the foundation that formation is processed the outdoor new wind of sending into Animal House successively again; New wind entrance (1) connects fresh wind port (21); Air-supply wind outlet section (13) connects air outlet (22); Exhaust blower section (16), flow equalization section (18), active carbon filter (15), medium effeciency filter (14), air draft wind outlet section (17) connect successively, consist of the foundation of the return air of Animal House being processed and entered atmosphere; Air draft wind outlet section (17) is connected with exhaust outlet (24); Exhaust blower section (16) is connected with indoor return air inlet (23); Air-supply volume damper (20) is housed between low efficient filter (2) and the preheating plate pipeline section (3); Return air volume damper (19) is housed in the air draft wind outlet section (17).
2. be interrupted air-returning device by Laboratory Animal Facility claimed in claim 1, it is characterized in that: the mutually interlock of return air volume damper (19) and air-supply volume damper (20), adopt the control of mechanical type or electronic type.
3. be interrupted air-returning device by Laboratory Animal Facility claimed in claim 1, it is characterized in that: air-supply wind outlet section (13) is communicated with Animal House by air outlet (22); Exhaust blower section (16) is communicated with Animal House by indoor return air inlet (23).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN 201220329618 CN202813604U (en) | 2012-07-10 | 2012-07-10 | Intermittent air return device for experimental animal facility |
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201220329618 CN202813604U (en) | 2012-07-10 | 2012-07-10 | Intermittent air return device for experimental animal facility |
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| CN202813604U true CN202813604U (en) | 2013-03-20 |
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| CN 201220329618 Expired - Lifetime CN202813604U (en) | 2012-07-10 | 2012-07-10 | Intermittent air return device for experimental animal facility |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106016585A (en) * | 2016-05-19 | 2016-10-12 | 苏州苏净安发空调有限公司 | Air conditioner management system for experimental animal barrier facilities |
| CN106891907A (en) * | 2017-04-17 | 2017-06-27 | 深圳沃海森科技有限公司 | The new blower fan of high ferro with multi-point atomizing humidification system |
| CN110771520A (en) * | 2019-10-28 | 2020-02-11 | 北京工业大学 | New exhaust air heat recovery device and method suitable for experimental animal room |
| CN110953677A (en) * | 2019-12-13 | 2020-04-03 | 江苏达实久信医疗科技有限公司 | Integrated form operating room clean system |
| CN110953678A (en) * | 2019-12-13 | 2020-04-03 | 江苏达实久信医疗科技有限公司 | Integrated form operating room clean system of low energy consumption |
| CN112470940A (en) * | 2020-10-15 | 2021-03-12 | 浙江理工大学 | Low-resistance energy-saving air conditioning device for laboratory animal house |
| CN115218300A (en) * | 2022-06-30 | 2022-10-21 | 安徽正刚新能源科技有限公司 | Solution dehumidification unit based on return air cold energy recovery |
-
2012
- 2012-07-10 CN CN 201220329618 patent/CN202813604U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106016585A (en) * | 2016-05-19 | 2016-10-12 | 苏州苏净安发空调有限公司 | Air conditioner management system for experimental animal barrier facilities |
| CN106891907A (en) * | 2017-04-17 | 2017-06-27 | 深圳沃海森科技有限公司 | The new blower fan of high ferro with multi-point atomizing humidification system |
| CN110771520A (en) * | 2019-10-28 | 2020-02-11 | 北京工业大学 | New exhaust air heat recovery device and method suitable for experimental animal room |
| CN110953677A (en) * | 2019-12-13 | 2020-04-03 | 江苏达实久信医疗科技有限公司 | Integrated form operating room clean system |
| CN110953678A (en) * | 2019-12-13 | 2020-04-03 | 江苏达实久信医疗科技有限公司 | Integrated form operating room clean system of low energy consumption |
| CN112470940A (en) * | 2020-10-15 | 2021-03-12 | 浙江理工大学 | Low-resistance energy-saving air conditioning device for laboratory animal house |
| CN115218300A (en) * | 2022-06-30 | 2022-10-21 | 安徽正刚新能源科技有限公司 | Solution dehumidification unit based on return air cold energy recovery |
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Granted publication date: 20130320 |
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