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Intermediate volute with intake and exhaust functions

An air intake and exhaust, functional technology, applied to the components of the pumping device for elastic fluid, non-variable displacement pumps, machines/engines, etc. The effect of pressure adjustment range, stable airflow, and good user experience

Inactive Publication Date: 2018-12-18
JIANGSU LAISEN ENVIRONMENTAL PROTECTION EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, such a volute structure can only be applied to traditional multi-stage fans, and cannot realize fan pressure regulation and control. If the function of air inlet and outlet can be realized on the volute, it is expected to solve the above dilemma

Method used

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  • Intermediate volute with intake and exhaust functions
  • Intermediate volute with intake and exhaust functions
  • Intermediate volute with intake and exhaust functions

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Such as figure 1 and figure 2 As shown, the tuyere 2 of the middle volute 8 of this embodiment is used as the air outlet, and the air outlet of the front section of the flow channel enters the air flow channel of the middle volute 8 from the second type of flow channel opening 7 of the right deflector 5. When the fan works , open the valve on the pipe connected to the air outlet 2, and the air can be released, such as figure 1 and figure 2 indicated by the arrow in the middle.

Embodiment 2

[0028] Such as image 3 and Figure 4 As shown, the tuyere 2 of the middle volute 8 of this embodiment is used as the air inlet. When the fan is working, open the valve on the pipeline connected to the tuyere 2 to enter the air, and the airflow enters the airflow of the rear section from the first type of flow channel opening Boosting is achieved in channels such as image 3 and Figure 4 indicated by the arrow in the middle.

Embodiment 3

[0030] Such as Figure 5 As shown, the present embodiment discloses a centrifugal fan, which includes several intervolutes 8 with intake and exhaust functions as mentioned above. The specific structure of the centrifugal fan is protected in other patents, and will not be described in detail in the present invention. .

[0031] To sum up, the inter-volute 8 of the present invention has the functions of air intake and exhaust, and the tuyere 2 can be used as both the air inlet and the air outlet. In this way, the tuyere 2 can be opened and closed and the wind direction can be switched according to the needs in actual use, greatly increasing the number of fans. The air pressure adjustment range enables the fan to better match the working conditions; the first type of flow port 6 and the second type of flow port 7 are reasonably set on the deflector to ensure stable air flow, avoid surge, and give the fan better Excellent user experience; the intermediate volute 8 can be installe...

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PUM

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Abstract

The invention discloses an intermediate volute with intake and exhaust functions. The intermediate volute comprises a shell connected with a rotating shaft by the axis, and a guide plate mounted in the shell; the shell is provided with an air port; a flange is mounted in the air port; an airflow channel, communicating with the air port, is formed in the shell; the guide plate comprises a left guide plate and a right guide plate; a first type of runner port is formed in the joint place between the left guide plate and the right guide plate; and second types of runner ports are formed in the upper and lower ends of the right guide plate. The intermediate volute achieves the intake and exhaust functions; the air port can serve as an air inlet and an air outlet, so that the opening and the closing of the air port and the switching of the wind direction can be performed as needed in actual use, the air pressure adjusting range of a fan is greatly widened, and the fan can be preferably matched with the working conditions; and the first type of runner port and the second types of runner ports are reasonably arranged on the guide plate, so that the stable airflow is guaranteed, the surgingis prevented, and better use experiences are given to the fan.

Description

technical field [0001] The invention relates to an inter-volute, in particular to an inter-volute with the function of air intake and exhaust, and belongs to the technical field of fan equipment components. Background technique [0002] The fan is the customary abbreviation for gas compression and gas delivery machinery in my country. Its working principle and purpose are to convert the rotating mechanical energy into gas pressure energy and kinetic energy, and transport the gas out. The main structural components of the fan include impellers, casings, air inlets, brackets, motors, pulleys, couplings, mufflers, transmission parts (bearings), etc. [0003] Fans have a long history. More than 2,000 years ago, China, Babylon, Persia and other countries had used ancient windmills to lift water for irrigation and grind grain. Modern centrifugal fans are basically the same. With the development of technology, the performance of fan has also been greatly improved, and it has been...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04D29/42F04D29/44F04D29/66
CPCF04D29/4206F04D29/441F04D29/667
Inventor 边慧韩斌
Owner JIANGSU LAISEN ENVIRONMENTAL PROTECTION EQUIP CO LTD