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A fan exhaust device

A technology of air extraction device and fan, which is applied to pump devices, components of pumping devices for elastic fluids, mechanical equipment, etc., can solve problems such as hidden dangers of cabin safety construction, inability to achieve effective ventilation, and unsatisfactory air extraction effects. It is convenient for scraping and stacking, flexible in shape and structure, and the effect of reducing energy consumption

Active Publication Date: 2020-09-18
CHENGXI SHIPYARD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In the process of ship repair, when effectively ventilating the working environment of the airtight cabin, there are mainly two kinds of inward air supply and outward air extraction. Place it directly at the door opening for ventilation. Because the shape of the fan is quite different from the door opening, effective ventilation cannot be achieved, and the ventilation effect is very unsatisfactory; according to the requirements of safe construction, there should be two entrances and exits for the relevant cabins, so that in case of emergency It is used for escape from the bottom, and the personnel who buckle the fan on the doorway cannot pass at all, which is equivalent to blocking an exit, which brings hidden dangers to the safe construction of the cabin

Method used

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Experimental program
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Embodiment 1

[0018] Such as Figure 1 to Figure 4 As shown, the present invention is a kind of blower blower device, comprises the base 1 (plate thickness is 6 millimeters) that is the shape of upper circle below, is provided with the door 2 that is hinged on the side of base 1 on the side of base 1, the middle position of base 1 The scraper plate 3 is integrally arranged, the cantilever end of the scraper plate 3 is integrally provided with a stacking limit plate 4, the scraper plate 3 is arranged horizontally, the stacking limit plate 4 is vertically arranged, the scraper plate 3 is located above the door 2, The scraper plate 3 is provided with at least one pair, and the linear distance between the cantilever ends of the two scraper plates 3 in each pair is equivalent to the side length of the square end of the base 1; a rubber gasket 5 is fixedly arranged on the inner wall of the square end of the base 1; It is fixedly arranged on the inner wall of the upper part of the base 1 or fixedl...

Embodiment 2

[0020] The difference from Embodiment 1 is that, as Figure 5 , Figure 6 shown (for ease of illustration, Figure 5 , Figure 6 The top of the bottom plate is not shown, and the slots only show two pairs), the height of the rubber gasket 5 is 0.5 to 5 cm; several slots 13 are arranged on the inner sidewall of the bottom of the base 1, and the upper end of the slot 13 is connected to the square platform The upper end of the lower part of the shell-shaped base 1 is flush, and the lower end of the slot 13 is flush with the upper end of the rubber gasket 5; a pair of slots 13 on any two inner walls of the lower part of the base 1 are fitted with a plugboard 14 , the bottom surface of the board 14 is provided with a rubber strip slot.

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Abstract

The invention discloses an air draft device of a draught fan. The air draft device of the draught fan comprises a base which is in an upper circular shape and a lower square shape, a door hinged to the side face of the base is arranged on the side face of the base, shoveling plates are integrally arranged at the middle position of the base, stacking limiting plates are integrally arranged at the cantilever ends of the shoveling plate, the shoveling plates are transversely arranged, the stacking limiting plates are vertically arranged, the shoveling plates are located above the door, at least apair of the shoveling plates are provided, and the linear distances of the cantilever ends of the two shoveling plates in each pair are equal to the side length of the square end of the base; and a rubber sealing gasket is fixedly arranged on the inner side wall of the square end of the base, a fan is fixedly arranged on the inner wall of the upper part of the base or fixedly arranged on a cross-shaped connecting rod, and the two ends of the connecting rod are fixedly connected to the inner side wall of the base. According to the air draft device, the shape of the lower part of the base is matched with the shape of a hole, so that the air draft effect of the fan is improved by sealing, air can be effectively ventilated, the door is arranged on the base, the door opening position does notneed to be worried about, and the air draft device of a draught fan facilitates shoveling transportation and stacking placement.

Description

technical field [0001] The invention relates to a blower blower device. Background technique [0002] In the process of ship repair, when effectively ventilating the working environment of the airtight cabin, there are mainly two kinds of inward air supply and outward air extraction. Place it directly at the door opening for ventilation. Because the shape of the fan is quite different from the door opening, effective ventilation cannot be achieved, and the ventilation effect is very unsatisfactory; according to the requirements of safe construction, there should be two entrances and exits for the relevant cabins, so that in case of emergency It is used for escape from the bottom, and the personnel who buckle the fan on the doorway cannot pass at all, which is equivalent to blocking an exit, which brings hidden dangers to the safe construction of the cabin. Through the analysis of the use principle of the fans, only when the fan and the hole are in a vacuum state, the exhaus...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F04D25/12F04D27/00F04D29/08F04D29/52F04D29/64
CPCF04D25/12F04D27/00F04D29/083F04D29/522F04D29/644
Inventor 陈利兵
Owner CHENGXI SHIPYARD