阅读说明：本技术 高效排气式污水空气阀 (High-efficiency exhaust type sewage air valve ) 是由 欧立涛 黄靖 刘浩 殷建国 汪庆湘 于 2019-12-18 设计创作，主要内容包括：本发明涉及阀门技术领域,公开一种高效排气式污水空气阀,包括阀体、阀盖、阀板组件和浮球组件,阀板组件包括具有微排中空杆的阀板和嵌设在阀板内的微排阀座,阀盖上方连接有与阀板组件相配合的阀板座,阀板座上开设通孔供阀板的微排中空杆伸出且可供阀板组件灵活作上下移动,浮球组件包括浮球和阀杆,阀杆与微排阀座同轴设置且可在介质压力作用下与微排阀座抵接,阀板的微排中空杆另一端位于一气压室内,气压室包括相互隔绝的上气压室和下气压室,微排中空杆末端限位在上气压室内,上气压室和下气压室通过实时压力调节带动阀板组件上下移动。本申请的污水空气阀通过结合大排气和小排气两条排气通道,实现高效排气和排气彻底的目的。(The invention relates to the technical field of valves and discloses an efficient exhaust type sewage air valve which comprises a valve body, a valve cover, a valve plate assembly and a floating ball assembly, wherein the valve plate assembly comprises a valve plate with a micro-row hollow rod and a micro-row valve seat embedded in the valve plate, a valve plate seat matched with the valve plate assembly is connected above the valve cover, a through hole is formed in the valve plate seat, the micro-row hollow rod of the valve plate extends out and can be flexibly moved up and down by the valve plate assembly, the floating ball assembly comprises a floating ball and a valve rod, the valve rod and the micro-row valve seat are coaxially arranged and can be abutted against the micro-row valve seat under the action of medium pressure, the other end of the micro-row hollow rod of the valve plate is located in an air pressure chamber, the air pressure chamber comprises an upper air pressure chamber and a lower air pressure chamber which are mutually isolated, the tail end of the micro-row hollow rod. The sewage air valve of this application realizes high-efficient exhaust and the thorough purpose of exhaust through combining big exhaust and two exhaust passage of little exhaust.)

1. An efficient exhaust type sewage air valve comprises a valve body, a valve cover, a valve plate assembly and a floating ball assembly, and is characterized in that the valve plate assembly comprises a valve plate with a micro-row hollow rod and a micro-row valve seat embedded in the valve plate, the micro-row valve seat is connected with the micro-row hollow rod in an aligned mode, a valve plate seat matched with the valve plate assembly is connected above the valve cover, a through hole is formed in the valve plate seat to allow the micro-row hollow rod of the valve plate to extend out and allow the valve plate assembly to flexibly move up and down, the floating ball assembly comprises a floating ball and a valve rod, the valve rod is coaxially arranged with the micro-row valve seat and can be abutted against the micro-row valve seat under the action of medium pressure, the other end of the micro-row hollow rod of the valve plate is located in an air pressure chamber, the air pressure chamber comprises an upper air pressure chamber and a lower air pressure chamber which are mutually isolated, the tail end of, the air pressure chamber and the valve plate seat are spaced.

2. The high efficiency exhaust type sewage air valve according to claim 1 wherein the pressure chamber comprises a diaphragm seat, a diaphragm cover, a diaphragm and a diaphragm pressure plate arranged between the diaphragm seat and the diaphragm cover to isolate the upper pressure chamber from the lower pressure chamber, the diaphragm cover forms the upper pressure chamber with the diaphragm and the diaphragm pressure plate, the diaphragm seat forms the lower pressure chamber with the diaphragm and the diaphragm pressure plate, a spring is arranged between the diaphragm and the bottom of the diaphragm seat, the diaphragm seat is provided with a vent hole for the lower pressure chamber to communicate with the outside, the diaphragm cover is provided with a limited exhaust hole for the upper pressure chamber to communicate with the outside, and the size of the limited exhaust hole is smaller than the hollow size of the hollow rod in the micro-row.

3. The high efficiency exhaust sewage air valve of claim 2 wherein a plurality of posts support the air pressure chamber between the valve plate seat and the diaphragm seat.

4. The high efficiency exhaust sewage air valve of claim 1 wherein the valve plate has a sleeve portion extending below the micro exhaust valve seat for insertion of the valve stem.

5. The high efficiency exhaust sewage air valve of claim 4 wherein an R-shaped pin is disposed on the outer periphery of the sleeve portion to connect the valve stem with the valve plate.

6. The high efficiency exhaust sewage air valve of claim 1 wherein the valve plate is provided with a valve plate clamping ring and a sealing ring on the surface contacting the valve plate seat.

7. The high-efficiency exhaust type sewage air valve according to claim 1 further comprising a protective cover connected to the valve cover, wherein the protective cover is provided with air holes communicated with the outside, and an air flowing area is formed between the protective cover and the valve cover and between the protective cover and the air pressure chamber.

8. The high efficiency exhaust sewage air valve of claim 7 wherein the air vent connects the male and female connectors to the outside.

Technical Field

The invention relates to the technical field of valves, in particular to a high-efficiency exhaust type sewage air valve.

Background

In a long-distance sewage water conveying pipeline, if a high-speed exhaust valve is not arranged, gas in the pipeline cannot be exhausted when the pipeline is filled with water, air precipitated in the water cannot be exhausted in time, and the air can be gathered at the high position of the pipeline to form air mass, so that the water conveying efficiency is reduced, the water conveying interruption can be caused when the water conveying is serious, and the water filling of the pipeline is difficult to be completed smoothly. The composite exhaust valve for sewage in the prior art can only perform micro-exhaust through a small exhaust hole when exhausting air under pressure, and has the problems of low exhaust efficiency, incomplete exhaust and the like; meanwhile, because no high-speed air suction valve is arranged, when the pipeline stops pumping, is emptied or has faults such as pipe explosion and the like, negative pressure is generated in the pipeline, air cannot be sucked in time, and the pipeline can have the problems of sealing damage, pipeline collapse and the like.

Disclosure of Invention

The invention solves the technical problem of overcoming the defects of the prior art and provides an efficient exhaust type sewage air valve which is provided with double exhaust channels to ensure that air in a valve body is exhausted in time.

The purpose of the invention is realized by the following technical scheme:

an efficient exhaust type sewage air valve comprises a valve body and a valve cover, the valve plate assembly comprises a valve plate with a micro-row hollow rod and a micro-row valve seat embedded in the valve plate, the micro-row valve seat is connected with the micro-row hollow rod in an aligned mode, a valve plate seat matched with the valve plate assembly is connected above the valve cover, a through hole is formed in the valve plate seat and used for the micro-row hollow rod of the valve plate to stretch out and can be used for the valve plate assembly to flexibly move up and down, the floating ball assembly comprises a floating ball and a valve rod, the valve rod is coaxially arranged with the micro-row valve seat and can be abutted to the micro-row valve seat under the action of medium pressure, the other end of the micro-row hollow rod of the valve plate is located in an air pressure chamber, the air pressure chamber comprises an upper air pressure chamber and a lower air pressure chamber which are mutually isolated, the tail end of the micro-row hollow rod is limited in the upper air pressure chamber, the upper air pressure.

Further, the plenum chamber includes the diaphragm seat, the diaphragm lid, set up diaphragm and diaphragm clamp plate in order to completely cut off plenum chamber and lower plenum chamber between diaphragm seat and diaphragm lid, diaphragm lid and diaphragm, the diaphragm clamp plate forms the plenum chamber, diaphragm seat and diaphragm, the diaphragm clamp plate forms lower plenum chamber, set up the spring between diaphragm and the diaphragm seat bottom, set up the air vent on the diaphragm seat and supply plenum chamber and the external production gas circulation down, set up the limited vent on the diaphragm lid and supply plenum chamber and the external production gas circulation, the limited vent size is less than the hollow size of little row of free rod.

Furthermore, a plurality of upright posts are arranged between the valve plate seat and the diaphragm seat to support the air pressure chamber.

Further, the valve plate extends with a sleeve portion below the micro-valve seat for inserting the valve rod.

Further, an R-shaped pin is disposed on the outer periphery of the sleeve portion to connect the valve rod with the valve plate.

Further, the valve plate is provided with a valve plate pressing ring and a seal ring on a surface contacting the valve plate seat.

Furthermore, the gas valve further comprises a protective cover connected with the valve cover, the protective cover is provided with a gas hole communicated with the outside, and a gas circulation area is formed among the protective cover, the valve cover and the gas pressure chamber.

Furthermore, the air holes are connected with the external thread inner joint to ventilate with the outside.

Compared with the prior art, the invention has the following beneficial effects:

1) through the arrangement of the air pressure chamber, the valve plate assembly can be separated from or seal the valve plate seat under the pressure regulation of the air pressure chamber, so that a new exhaust channel is opened for the sewage air valve, the excellent combination of large exhaust at the valve plate seat and small exhaust at the micro-exhaust assembly is realized, the sewage air valve can smoothly perform large-amount exhaust, stop exhaust, exhaust under pressure and large-amount suction when needing large-amount exhaust, and the purposes of efficient exhaust and thorough exhaust are realized;

2) the air pressure chamber can make timely and accurate self-adaptive control and adjustment on the valve plate assembly and the valve rod by utilizing the size difference between the size of the limited discharge hole and the hollow size of the micro-discharge hollow rod, so that the reliable exhaust effect of the sewage air valve is ensured.

Drawings

FIG. 1 is a schematic view showing the construction of a waste water air valve according to embodiment 1 (initial exhaust state);

FIG. 2 is a schematic exhaust path of the waste air valve of FIG. 1;

FIG. 3 is a schematic view showing the configuration of the waste water air valve of embodiment 1 in a large amount of exhaust/suction states;

FIG. 4 is a schematic structural view of the waste water air valve according to embodiment 1 in a state of stopping air discharge;

FIG. 5 is a schematic view showing the sewage air valve of embodiment 1 in a state of being exhausted under pressure;

fig. 6 is a schematic structural view of the sewage air valve according to embodiment 1 in an abnormal state.

Detailed Description

The present invention will be further described with reference to the following detailed description, wherein the drawings are provided for illustrative purposes only and are not intended to be limiting; to better illustrate the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.