JPH0132557Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a local air conditioning system for an animal breeding room suitable for use in an animal breeding room where laboratory animals are kept in isolation.

[Background technology]

As shown in FIG. 1, in the breeding room for experimental animals, one or more (in this example, two) animal breeding frames 12 are arranged in the breeding room 10, and on these, in the illustrated example, each Five cages 14 are installed.

The breeding room 10 is equipped with an air conditioning system to keep the temperature and humidity constant and remove dust.
That is, the sterile conditioned air is sent to the sterile blow-off unit 1.
6, and the air is then fed into the breeding room 10 in all directions, and the air inside the room is fed through the suction ports 2 of the twin walls 18 installed on the walls of the breeding room 10, respectively.
Exhausted via 0. The arrows in the figure indicate the state of indoor airflow.

In this way, the conventional air conditioner air-conditions the entire breeding room 10. However, the area that actually needs air conditioning is mainly cage 1 where the animals are kept.
Only part 4 is enough. As is clear from the illustrated example, the cage 14 occupies a very small volume relative to the total volume of the breeding room 10. For this reason, conventional air conditioners use air conditioning to remove dust even in wasted space within the breeding room 10, which not only results in poor air conditioning efficiency, but also requires a huge amount of energy for air conditioning as it is an all-outdoor air conditioning system. There were some drawbacks.

Furthermore, in such a fully air-conditioned system, the breeding room 10
When people working inside the room come in and out, there is a risk that the workers may contaminate the room and cause cross-infection from workers.

[Purpose of invention]

In consideration of the above facts, this invention is designed for use in animal breeding rooms by air-conditioning only the minimum necessary area to improve air-conditioning efficiency and save energy, as well as to minimize indoor contamination. It provides a local air conditioning system.

[Summary of the idea]

The local air conditioner for an animal breeding room according to the present invention includes a blowing chamber that is formed by a partition between a working area and a breeding area in the breeding room and supplies conditioned air to the breeding area, and a blowing chamber that sucks air in the breeding area. It is characterized by comprising a twin wall in which a suction port is installed and a breeding area is defined, and an exhaust path formed by the twin wall and a side wall of the breeding room.

[Example of idea]

FIG. 2 shows a first embodiment of the local air conditioning system for animal breeding rooms according to the present invention. The animal breeding frames 12 are installed in parallel near the walls 22, 22 of the breeding room 10, respectively, and a plurality of cages 14 as described above are arranged on each of the frames 12, 12. Therefore, the plurality of cages 14 are provided with blowout chambers 24, 24, respectively, so that the conditioned air flows horizontally.

The blowout chambers 24, 24 are partitions 26, 2
6 and partitions 28, 28 that can be opened and closed,
Both walls 26 and 28 are installed in parallel with a predetermined spacing between them. In addition, the blowout chambers 24, 24
The space between the two serves as a passageway and work area for workers.

Twin walls 18, 18 are installed between the pedestal 12 and the side wall 22, respectively, and conditioned air is exhausted through a suction port 20 provided in the twin walls 18, 18.

On the other hand, a sterile blow-off unit 32 is provided in the center of the ceiling 30 of the breeding room 10. This blow-off unit 32 includes a main blow-off unit 34 for feeding conditioned air into the room between the pair of blow-off chambers 24, 24, and a pair of branches for feeding conditioned air to the pair of blow-off chambers 24, 24. Blowout unit 3
6,36. By using such a blowing unit 32, the cages 14, 14
Fresh conditioned air is constantly supplied to the chambers 24, 24 through the outlet chambers 24, 24. 38 is a hepa filter.

Note that the partitions 28 and 28 are installed slightly apart from the floor 40 without being in complete contact with the floor 40, and the conditioned air supplied by the main blow-off unit 34 is directed to the floor 40.
The air is supplied to the exhaust passage 38 through the gap between the air and the partitions 28, 28. Therefore, the conditioned air supplied by the main blow-off unit 34 and the conditioned air sent to the blow-off chambers 24, 24 via the branch blow-off units 36, 36 are completely separated. The conditioned air does not pass through the cage 14.

In this way, the interior of the cages 14, 14 can be conditioned only by the air supplied to the blow chambers 24, 24. On the other hand, since there is no need to constantly air condition the work area where workers go in and out, it is possible to reduce the number of times ventilation is required when not working.

Therefore, by performing air conditioning control as described above in combination with local air conditioning, air conditioning energy can be significantly saved. In addition, by separating the work area and the animal area in terms of air conditioning,
Mutual infection with workers can be minimized even if the workers go in and out of the breeding room 10.

FIG. 3 shows a second embodiment of the present invention, and this example is applied to a breeding room 10 equipped with one pedestal 12 and a plurality of cages 14 installed thereon. is provided with one blow-off chamber 24 and one branch blow-off unit 36. A small breeding room like this 1
The present invention can also be applied to 0.

FIG. 4 shows a third embodiment of the present invention. Both the first and second embodiments have blowout chambers 24, 24.
was formed by partitions 26, 26 and 28, 28, but in this third embodiment, rearing room units 46, 46 are used in which blowout chambers 44, 44 are provided in advance on the indoor side.

Therefore, the outlet chambers 44, 44 and the branch ports 48, 4 provided in a part of the main outlet unit 34 are
8 are connected by air supply ducts 50, 50, so that conditioned air is fed into the respective blowout chambers 44, 44.

By using the breeding room units 46, 46 with the blowout chambers in this way, it is possible to extremely easily perform local air conditioning to the minimum necessary level, thereby realizing energy saving and isolation between the animal area and the work area. .

[Effect of idea]

According to the present invention, a partition is provided between the working area and the breeding area of the breeding room, and a blowing chamber is formed to supply conditioned air to the breeding area. Therefore, it becomes possible to locally supply clean conditioned air into the breeding area, and maintenance and inspection of the cage becomes easy. Furthermore, since contaminated air within the rearing area is introduced into the exhaust path formed by the twin walls and the side wall of the rearing room, a constant amount of airflow can always be maintained within the rearing area.

As a result, the cage in which the animal is kept can be air-conditioned in a focused manner, making it possible to significantly reduce air-conditioning energy compared to the case where the entire breeding room is uniformly air-conditioned. Therefore, it is economically efficient.

Furthermore, since the animal area and the work area can be isolated by this local air conditioning, cross-infection between animals and humans is eliminated, and sterile breeding of animals can be achieved relatively easily.

In addition, the one-way airflow allows bacteria, dust, odors, heat, etc. generated by animals to be quickly disposed of without dispersing them into the breeding room, thereby maintaining the cleanliness of the animal area and preventing cross-infection between animals. At the same time, it is possible to prevent the spread of animal odor throughout the breeding room and to equalize the distribution of temperature and humidity among animals by reducing the sensible heat load in the room.

[Brief explanation of the drawing]

FIG. 1 is a simplified diagram showing an example of an animal breeding room with conventional air conditioning equipment, and FIGS. 2, 3, and 4 show a first local air conditioning system for animal breeding rooms according to the present invention.
It is a simplified diagram showing the second and third embodiments. 10... Breeding room, 12... Frame, 14... Cage, 18... Twin wall, 24, 44... Blowout chamber, 26... Partition, 28... Partition, 34... Main blowout unit, 36... Branch blowout unit.

Claims (1)

[Scope of utility model registration request] By providing a partition in the breeding room that can be opened and closed between the work area and the breeding area where the animal breeding frame is installed, a blowout chamber is formed between the animal breeding frame and the partition, and air-conditioned air is supplied to the blowout chamber. A local air conditioner for an animal breeding room, wherein the conditioned air is supplied with air and exhausted from an inlet provided on the wall side of the animal breeding frame.