CN2213300Y - 变压式止逆阀 - Google Patents

变压式止逆阀 Download PDF

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CN2213300Y
CN2213300Y CN 95243308 CN95243308U CN2213300Y CN 2213300 Y CN2213300 Y CN 2213300Y CN 95243308 CN95243308 CN 95243308 CN 95243308 U CN95243308 U CN 95243308U CN 2213300 Y CN2213300 Y CN 2213300Y
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沈惠贤
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Shen Huixian
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Abstract

本实用新型涉及一种变压式止逆阀,包括进风 口、出风口、止逆百页、外壳,出风口直径小于进风口 直径,出风口和进风口之间有排气道,排气道由进气 口向出气口逐渐收缩。可有效解决现有烟气集中排 放系统中止逆阀排气不畅和回风串味的问题,并对油 烟进行二次脱排,减少了排出气体的废油含量,可望 成为新一代的止逆阀。

Description

本实用新型涉及一种止逆阀,特别是一种住宅建筑烟气集中排放系统的变压式止逆阀。
目前,广泛使用的脱排油烟机有效的收集了厨房内的油烟,但是油烟的排放一般直接向室外走廊排出,或破墙向户外排出,造成居住区环境污染,且损害了建筑物的美观,为此,研制成功了一种住宅建筑烟气集中排放系统,它包括止逆阀、集中排气管、屋顶出风口,现以初步推广使用,取得了良好的效果。然而,在实际使用中,这种烟气集中排放系统的设计还不尽理想,其中,止逆阀存在着开阀时叶片开不足和闭阀时叶片之间不密封的问题,造成排气不畅和回风串味的现象,影响了使用效果。
本实用新型的目的是提供一种可有效排气和防回风的变压式止逆阀。
本实用新型的任务是这样实现的。本实用新型包括进风口、出风口、止逆百页、外壳,其中出风口直径小于进风口直径,出风口和进风口之间有排气道,排气道由进气口向出气口逐渐收缩,其底部装有集油杯,在排气道上还有水平安装的抽屉式止逆百页。根据流体力学原理,油烟气流由进气口向出气口逐渐加压,流速加大,可有效的开启止逆百页,由出风口将油烟排出;其次,油烟在排出过程中,部分废油留在了排气道中,流至其底部的集油杯,起到二次分离油烟的作用;水平安装的止逆百页可有效关闭,防止回风串味的发生。
本实用新型构思新颖,结构简单,对同类产品作出了重大改进,可有效解决现有烟气集中排放系统中止逆阀排气不畅和回风串味的问题,并对油烟进行二次脱排,减少了排出气体的废油含量,可望成为新一代的止逆阀。
现结合附图对本实用新型作进一步说明。
图1为本实用新型的结构示意图。
本实用新型包括进风口1、出风口2、外壳3,        其特征是:所述的出风口2直径小于进风口1直径,出风口2和进风口1之间有排气道4,排气道4由进气口向出气口逐渐收缩,其底部装有集油杯6,在排气道4上还安装有的止逆百页5,所述的止逆百页5是抽屉式百页。

Claims (4)

1、一种变压式止逆阀,包括进风口(1)、出风口(2)、外壳(3),其特征是:所述的出风口(2)直径小于进风口(1)直径,出风口(2)和进风口(1)之间有排气道(4),排气道(4)由进气口(1)向出气口(2)逐渐收缩。
2、根据权利要求1所述的止逆阀,其特征是:所述的排气道(4)上安装有的止逆百页(5)。
3、根据权利要求2所述的止逆阀,其特征是:所述的排气道(5)底部装有集油杯(6)。
4、根据权利要求3所述的止逆阀,其特征是:所述的止逆百页(5)是抽屉式百页。
CN 95243308 1995-01-04 1995-01-04 变压式止逆阀 Expired - Fee Related CN2213300Y (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 95243308 CN2213300Y (zh) 1995-01-04 1995-01-04 变压式止逆阀

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Application Number Priority Date Filing Date Title
CN 95243308 CN2213300Y (zh) 1995-01-04 1995-01-04 变压式止逆阀

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CN2213300Y true CN2213300Y (zh) 1995-11-22

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CN 95243308 Expired - Fee Related CN2213300Y (zh) 1995-01-04 1995-01-04 变压式止逆阀

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CN (1) CN2213300Y (zh)

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Free format text: CORRECT: PATENTEE ADDRESS; FROM: ROOM 501, NO. 1022, JIANGGU ROAD, SHANGHAI CITY TO: ROOM 1406, NO.10, LANE 953, JIANGQIAO ROAD, SHANGHAI CITY, 200051

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