CN202761762U - Flow equalizing device for tunnel type sterilization oven - Google Patents

Abstract

The utility model relates to a flow equalizing device for a tunnel-type sterilization oven, which is characterized in that it includes a wind cover, and a flow equalization mechanism is arranged inside the wind cover, and the flow equalization mechanism is formed to ensure the width direction of the tunnel-type sterilization oven. The equalizing air duct with uniform hot air volume. The utility model has the advantages that it can successfully equalize the hot air in the sterilization box, ensure the uniformity of temperature distribution in the width direction of the oven, make the tunnel oven more in line with GMP requirements, and prolong the service life of the high-efficiency filter. Reduce operating costs.

Description

A flow equalizing device for tunnel type sterilization oven

technical field

The utility model relates to a flow equalization device applied in a tunnel oven, through which the uniformity of hot air entering a high-efficiency filter in a heating section is adjusted.

Background technique

Heat uniformity is an important indicator of sterilization in GMP, which requires all points in the sterilization equipment to reach the predetermined sterilization temperature. The uneven heat distribution of the sterilization equipment is an important reason for its failure to pass the verification. In the sterilization equipment with uneven heat distribution, the thermal effect of dry heat sterilization obtained by some containers passing through the sterilization section is reduced, so that the depyrogenation cannot be achieved. Effect. For this reason, the thermal distribution of sterilization equipment has received general attention.

For hot air tunnel sterilization ovens, heat uniformity is an important indicator to measure performance (heat uniformity refers to the temperature difference between the highest temperature and the lowest temperature on the same cross-section in the width direction of the oven). It exchanges heat with the heating element, and then blows the hot air into the wind hood by the fan. After passing through the high-temperature high-efficiency filter, the clean hot air heats and sterilizes the medicine bottle. The return air channel returns to the heating element for heating. Due to the special structure of the circulating air, the sterilization effect of the medicine bottles close to the return air passage is better than that of the medicine bottles far away from the return air passage due to the sufficient hot air.

At the same time, the unevenness of the air volume also causes the dust to be too concentrated in the position where the filter has a large ventilation volume, which shortens the service life of the high-temperature high-efficiency filter and increases the operating cost of the oven.

Contents of the invention

The purpose of the utility model is to provide a flow equalizing device to ensure uniform temperature distribution in the oven and protect the high-efficiency filter.

In order to achieve the above object, the technical solution of the utility model is to provide a flow equalizing device for tunnel type sterilization oven, which is characterized in that: it includes a wind cover, and a flow equalizing mechanism is arranged in the wind cover, and the flow equalizing mechanism A flow equalizing air duct is formed to ensure uniform hot air volume in the width direction of the tunnel type sterilization oven.

Preferably, the flow equalization mechanism is an angle-adjustable air regulation vane arranged in the wind cover, and the air flow equalization ducts of different sizes are formed between two adjacent air regulation blades.

Preferably, both ends of the air regulation vane are connected and fixed by lock nuts to the wind shield.

Preferably, the axial direction of the air-regulating vane is perpendicular to the width direction of the tunnel-type sterilization oven.

The utility model has the advantages that it can successfully equalize the hot air in the sterilization box, ensure the uniformity of temperature distribution in the width direction of the oven, make the tunnel oven more in line with GMP requirements, and prolong the service life of the high-efficiency filter. Reduce operating costs.

Description of drawings

Fig. 1 is a bottom view of a flow equalizing device used in a tunnel type sterilization oven in this embodiment;

Fig. 2 is a three-dimensional schematic view of a tunnel type sterilization oven in this embodiment;

Fig. 3 is a schematic diagram of the installation of a tunnel-type sterilization oven in this embodiment.

Detailed ways

In order to make the utility model more comprehensible, preferred embodiments are described in detail below with accompanying drawings.

As shown in Figures 1 and 2, a flow equalization device for a tunnel-type sterilization oven disclosed in this embodiment includes a windshield 1, and a plurality of angle-adjustable wind-regulating blades 2 are arranged in the windshield 1, and the Between two adjacent air regulating blades 2 , equal flow air passages of different sizes are formed, and the two ends of the air regulating blades 2 are connected and fixed between the lock nuts 3 and the wind cover 1 .

As shown in Fig. 3, when in use, a kind of flow equalizing device for the tunnel type sterilization oven provided by the utility model is placed above the high efficiency filter 4 of the tunnel type sterilization oven, and the high efficiency filter can also be used 4. The original windshield positioned at the air inlet position is used to install the air regulating vane 2 .

When working, the clean air is heated to the temperature required by the process through the heating element, and then the fan sends the hot air from the air cover 1 to the high-efficiency filter 4. Adjusting the angles of the air regulating blades 2 to corresponding angles can ensure uniform hot air volume in the width direction of the tunnel type sterilization oven.

The utility model provides that the blade angle can be flexibly adjusted according to the change of the working conditions during the use of the machine, and the uniformity of the hot air volume in the width direction of the oven is always maintained.

Claims (4)

1. a current equalizer that is used for tunnel-type sterilizing oven is characterized in that: comprise fan housing (1), be provided with current-sharing mechanism in fan housing (1), formed the uniform current-sharing of the hot blast air quantity air channel that guarantees the tunnel-type sterilizing oven width by current-sharing mechanism.

2. a kind of current equalizer for tunnel-type sterilizing oven as claimed in claim 1, it is characterized in that: described current-sharing mechanism is for being arranged in the adjustable accent air blade (2) of angle described fan housing (1) in, by forming described current-sharing air channel not of uniform size between adjacent two accent air blades (2).

3. a kind of current equalizer for tunnel-type sterilizing oven as claimed in claim 2, it is characterized in that: the two ends of described accent air blade (2) are by being connected and fixed between locking nut (3) and the described fan housing (1).

4. a kind of current equalizer for tunnel-type sterilizing oven as claimed in claim 2, it is characterized in that: the axial direction of described accent air blade (2) is vertical with the width of tunnel-type sterilizing oven.

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