CN201265929Y - Non-leak sterilizing and ventilating apparatus - Google Patents

Abstract

The utility model relates to a non-leakage sterilization air exhauster which belongs to the technical field of ventilation air conditioners, in particular to an air exhauster with a sterilization part and no structural leakage, which comprises a blower, a sterilization part, a case body and a hollow framework. The sterilization part is fixed on the non-leakage hollow framework in the case body, connected with the case body in an air-tight way and arranged on the air inlet part of the blower; the case body is provided with a power cord and a control unit; the side close to the sterilization part is punched with a hole, and the positive pressure air of an air outlet section is led into the hollow framework by a fine pipe to be communicated with a mechanical sealed surface. The utility model can keep room negative pressure and completely remove the harmful microorganisms in exhausted air to prevent pathogens from escaping to harm the surrounding people and environment, and can also be used for removing radiative dust in the exhausted air of radiative, isotopic and the like laboratories and therapeutic rooms without leakage.

Description

Do not leak the degerming air exhausting device

Technical field

The utility model relates to the air conditioner technical field, refers to the degerming air exhausting device that a kind of all kinds negative pressure room that is fit to prevent that indoor harmful microorganism from leaking is used especially.

Background technology

There are various harmful microorganisms to indoor, the isolation ward of the air approach strong pathogenic bacteria of propagating particularly, biocontainment laboratory, infection animal room, all kinds of rooms such as bacterium storehouse.In order to prevent that harmful microorganism from escaping out, must make these room room pressures be lower than ambient air pressure.These rooms are called as negative pressure chamber, and the engineering measure that these negative pressure space realize is air draft.Its key technology is all removed all harmful microorganisms in the air draft exactly, never allows any leakage, with personnel and environment around the harm.Because degerming parts (as high efficiency particulate air filter) both sides pressure reduction is very big,, will make indoor strong pathogenic bacteria directly leak into the air draft side and discharge without degerming as long as a little leak.Therefore the key of such air exhausting device is not leak.Usually require the processing flatness of installation frame and degerming parts joint face very high, the intensity of pressure and the uniformity that need when mounted constantly to regulate mechanical seal just can make the joint face sealing gasket reach bubble-tight requirement.And require great effort again when being in the leak detection working expenditure of degerming parts of negative pressure end.Mechanical seal in long-time running is because sealing gasket is aging, or hold-down mechanism is loosening, can't guarantee not leak in any case.In case leak as appearance in service, consequence is hardly imaginable.The equal lay special stress on of the relevant criterion of each industrially developed country of the world or standard need be reserved bigger air draft passageway for leak detection, examination to leak detection, examination and the monitoring in service of air exhausting device for this reason in design, very waste time and energy, and operational monitoring is then more difficult.The special construction that the art of this patent provides makes air exhausting device under any circumstance seepage can not occur.Therefore need not hunt leak, guarantee to check and accept and once pass through, also need not monitor; Do not need to waste area yet and give over to the leak detection space.This patent also can be used for removing death ash in the air draft of laboratories such as radioactivity, isotope and therapeutic room and does not leak.

Summary of the invention

It is a kind of simple in structure that technical problem to be solved in the utility model is to provide, novel uniqueness, low cost configuration guarantees that the degerming parts are installed, can not occur leaking in the use, can effectively stop pathogenic bacteria to discharge the outdoor degerming air exhausting device that do not leak.

Solving the problems of the technologies described above the technical scheme of being taked is: the degerming air exhausting device that do not leak of the present utility model, by blower fan, degerming parts, do not leak hollow frame, casing is formed, wherein, the degerming parts are fixed in the casing, with do not leak hollow frame in the casing and keep air-tightness to be connected, be installed on the air inlet place of blower fan; Antibacterial member can be matched according to microbe species is different with harmfulness, can select common high efficiency filter for use, also can be with composite highly effective filters such as chemical anti-biotic material, photocatalyst, cold catalyst;

Casing front or sidewall etc. can be designed to slit-aperture type, grating type, well plate format air port, reduce the diffusion of air-supply air-flow as far as possible.Casing is provided with power line; Control assembly is a speed regulator.Can select rheostat speed regulator or frequency converter.

The described hollow frame structure of not leaking is leaked the frame structure that combines for a kind of mechanical seal with positive pressure drag, guarantees can not leak in installation of degerming parts and the use.

The utility model has changed traditional simple mechanical sealing, on the mechanical seal basis, adopt special hollow frame structure, at close degerming parts one side perforating, the positive pressure air of wind outlet section is introduced hollow frame with tubule, communicate, just in case micro gap appears in mechanical sealing surface with mechanical sealing surface, positive pressure air only may outwards be oozed out from the slit, block the indoor air that carries disease germs by gap leakage in blast pipe.Ensured that from structure pathogenic bacteria are non-leakage, reduced machining accuracy.

This structure has ensured that effectively any situation pathogenic bacteria do not leak, and reduces processing request and precision, does not therefore also need to hunt leak, monitor.

Description of drawings

Fig. 1 is traditional mechanical seal structure schematic diagram.

Fig. 2 is the degerming air exhausting device principle schematic of not leaking of the present utility model.

Fig. 3 is a hollow frame schematic diagram of the present utility model.

Fig. 4 is the A-A profile of Fig. 3.

Label declaration in the accompanying drawing

1-casing, 2-blower fan, 3-degerming parts

4-hollow frame, 41-intercommunicating pore, 42-malleation hole

43-shallow slot 5-tubule 6-wooden partition

The specific embodiment

Key of the present utility model is the special construction that do not leak.Except adopting traditional mechanical seal, also the hollow frame that do not leak in the utility model is communicated with the positive pressure air place with tubule, make and keep malleation in the hollow frame, owing to all be in negative pressure in the air exhausting device before and after the degerming parts (as high efficiency particulate air filter).Just in case micro gap appears in the mechanical sealing surface between degerming parts and the installation frame, positive pressure air only may outwards be oozed out from the slit, blocks room air and goes out by slot leakage, and positive pressure air has been blocked the approach that the indoor air that carries disease germs leaks in other words.Absolutely not the indoor aerosol bypass degerming parts that pathogenic bacteria are arranged are leaked in the exhaust duct, ensured that effectively the aerosol that under any circumstance can not make pathogenic bacteria leaks.

Below in conjunction with accompanying drawing structure of the present utility model is described further.

See also shown in Fig. 2,3,4, the degerming air exhausting device that do not leak of the present utility model is combined by casing 1, blower fan 2, degerming parts 3, hollow frame 4, is characterized in:

Degerming parts 3 are fixed in not leaking on the hollow frame 4 in the casing 1, keep air-tightness to be connected with casing 1, are installed on the air inlet place of blower fan 2; Casing 1 is provided with power line and is the control assembly of speed regulator.

Described structure of not leaking hollow frame 4 is that a kind of special mechanical seal is leaked the frame structure that combines with positive pressure drag, is the framework that can not occur leaking in 3 installations of assurance degerming parts and the use.

Described special mechanical seal, paste the closed cell rubber foam-rubber cushion in degerming parts 3 sides, the pressurization of not leaking between the hollow frame 4 with mechanical system and casing 1 connects, do not leak hollow frame 4 and be hollow structure, near border, degerming parts 3 side shallow slot 43 is arranged, evenly beat dozens of malleation hole 42 in the groove 43, do not leak intercommunicating pore 41 usefulness tubules in the hollow frame 4 and positive pressure air place the blower fan exit (seepage require high person or and ajutage, or with the minitype air-supply device, seepage requires low person and outside atmosphere) link to each other.Positive pressure air enters the malleation hole 42 that communicates with mechanical sealing surface of hollow frame 4 by intercommunicating pore 41 through tubule; As mechanical sealing surface complete when airtight positive pressure air can not come out, just in case small slit appears in mechanical sealing surface, because both sides, degerming parts 3 front and back all are in negative pressure, positive pressure air only may be from malleation hole 42 to gap leakage, utilize the principle of pressure reduction to block room air and go out by gap leakage, positive pressure air has been blocked the approach of the indoor air leaks of carrying disease germs in other words.Guaranteed Never-leakage in any case.

Described hollow frame 4 links to each other with the positive pressure air place with tubule, and tubule is metal tube or is non-metallic pipe.

Claims (3)

1, a kind of degerming air exhausting device that do not leak is provided with the degerming parts and structurally can not produces the air exhausting device of leakage for a kind of, comprises blower fan, degerming parts, casing, it is characterized in that:

Do not leak the degerming air exhausting device and also comprise hollow frame, the degerming parts are fixed in not leaking on the hollow frame in the casing, keep air-tightness to be connected with casing, are installed on the air inlet place of blower fan; Casing is provided with power line and control assembly;

Near degerming parts one side perforating, the positive pressure air of wind outlet section is introduced hollow frame with tubule, communicate with mechanical sealing surface.

2, the degerming air exhausting device that do not leak according to claim 1 is characterized in that:

The described hollow frame that do not leak leaks the frame structure that combines for a kind of special mechanical seal with positive pressure drag, is the framework that can not occur leaking in assurance degerming parts installation and the use.

3, the degerming air exhausting device that do not leak according to claim 2 is characterized in that:

Described special mechanical seal, paste the closed cell rubber foam-rubber cushion in the degerming component side, be connected with pressurization between the non-leakage hollow frame of mechanical system and casing, non-leakage hollow frame spiles near degerming parts side, do not leak the blower fan exit malleation hole of hollow frame with tubule and positive pressure air place, or and ajutage, or link to each other with the minitype air-supply device, the malleation aperture tubule of positive pressure air enters hollow frame and communicates with mechanical sealing surface.

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