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Flow equalizing fan box and embryo culture workstation

A technology of flow fans and fans, applied in mechanical equipment, radial flow pumps, machines/engines, etc., can solve the problems of uneven flow velocity on the air outlet surface, enlargement of the noise fan box, poor uniformity of the air outlet surface, etc., and achieve laminar flow. Good effect, noise reduction, uniform wind speed

Pending Publication Date: 2019-01-18
广州市华粤行医疗科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The uniformity of the air outlet surface of the blower type fan box is poor, and the noise is very loud
[0004] Due to the turbulent flow generated by the centrifugal fan, the traditional centrifugal fan type fan box will cause uneven flow velocity on the bottom air outlet surface, and because it is installed inside the fan box, the noise is easily amplified by the fan box

Method used

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  • Flow equalizing fan box and embryo culture workstation
  • Flow equalizing fan box and embryo culture workstation
  • Flow equalizing fan box and embryo culture workstation

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] figure 1 Schematically provides a simplified structural diagram of the flow equalizing fan box in Embodiment 1 of the present invention, as figure 1 As shown, the equal flow fan box includes:

[0046] A box body 3, the top of the box body has an air inlet, and the bottom has an air outlet;

[0047] a first filter, the first filter is arranged at the air inlet;

[0048] a second filter, the second filter is arranged at the air outlet;

[0049] Centrifugal fans without volute 1, such as figure 2 shown;

[0050] Support frame 2, described support frame is arranged in described casing, as image 3 As shown, the support frame includes at least two baffles, the baffles include a horizontal part and an upwardly inclined bent part, and the angle α formed between the horizontal part and the bent part is an obtuse angle, The width W of the upper end of the bent portion 1 Greater than bottom width W 2 ; The bent part has a hollow structure, and the inside and outside are...

Embodiment 2

[0060] An application example of the flow equalizing fan box according to Embodiment 1 of the present invention in an embryo culture workstation.

[0061] In this application example, the parameters of the non-volute centrifugal fan are: D = 220mm; H 2 = 45mm; H 1 =80mm;

[0062] D. 1 Take 150mm, take 7 for n, take N is taken as 10, and according to the relationship between parameters, it can be concluded that:

[0063] d 2 =147.5mm, W 2 =67mm, d 1 =128mm, W 1 =188mm, W=1450mm, H=750mm, L=2000mm, Z=7.5mm, d 3 =1.88mm, t=1.88mm, L=3mm.

[0064] Such as Image 6 As shown, the wind speed of the vertical airflow is measured in the plane area 100mm away from the air outlet of the fan box, the most edge measurement point is 100mm away from the edge of the fan box, and the horizontal and vertical distances of each measurement point are consistent.

[0065] Table of wind speed uniformity of traditional centrifugal fan type fan box:

[0066]

[0067] Noise: 49dBA

[00...

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Abstract

The invention provides a flow equalizing fan box and an embryo culture workstation, wherein the flow equalizing fan box comprises a box body; a volute-free centrifugal fan; a support frame, which comprises at least two baffle plates, wherein each baffle plate comprises a horizontal part and an inclined upward bending part, and an included angle alpha formed between the horizontal part and the bending part is an obtuse angle; the upper end width W1 of the bending part is larger than the bottom end width W2; the bending part is provided with a hollow structure, and the inner part and the outer part are communicated through a through hole; the volute-free centrifugal fan is arranged in an area enclosed by the support frame; and parameters of the box body, volute-free centrifugal fan and support frame meet certain conditions. The box has the advantages of uniform wind speed, low noise, good laminar flow effect and the like.

Description

technical field [0001] The invention relates to a fan box, in particular to a uniform flow fan box and an embryo culture workstation. Background technique [0002] At present, due to the increasingly significant role of laminar wind in many fields, everyone's requirements for laminar flow devices are getting higher and higher. Compared with turbulent air, laminar air has the advantages of dust prevention and sterilization, high heat dissipation efficiency, uniform and stable air volume, and low wind noise. Especially in the ultra-clean workbench and some embryo culture workstations, the laminar air flow is particularly important, which requires the air flow to maintain good uniformity when passing through the filter, but the effect of the laminar air flow in the existing fan boxes is uniform. It is not ideal, which adds many uncertainties and risks to the embryo operation. At the same time, the operation of the fan will generate a certain amount of noise, and most of the no...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04D17/16F04D25/08F04D25/16F04D29/42F04D29/44F04D29/66F04D29/70
CPCF04D17/16F04D25/08F04D25/166F04D29/4226F04D29/441F04D29/667F04D29/703
Inventor 闻路红张继越胡舜迪甘剑勤洪欢欢郭荣
Owner 广州市华粤行医疗科技有限公司
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