CN113669468A

CN113669468A - Diaphragm straight-through type on-way air supplement unit

Info

Publication number: CN113669468A
Application number: CN202110996516.6A
Authority: CN
Inventors: 薛新军; 顾炳涛; 陈学勇; 陈伟; 杨宇
Original assignee: Jiangsu Frontier Environmental Technology Co ltd
Current assignee: Jiangsu Frontier Environmental Technology Co ltd
Priority date: 2021-08-27
Filing date: 2021-08-27
Publication date: 2021-11-19

Abstract

The invention discloses a diaphragm through type on-way air supply device, which comprises a valve body and a valve cover, wherein a connecting pipe and an air inlet pipe are arranged at the lower end and the side surface of the valve body, the valve cover is arranged at the other side end of the valve body, the valve cover is a T-shaped cylindrical valve cover, a spring is arranged in a middle through hole of the valve cover, a diaphragm and a valve core are fixed at one side of the spring, a pressure regulating knob is arranged at the other side of the spring, and the pressure regulating knob is connected with the outer side of the valve cover by threads. The invention adopts a diaphragm through structure, has simple structure and reliable and sensitive action, the opening and closing of the device are determined only by the pressure in the conveying pipeline, and the device is controlled without other modes and can be opened automatically only in places needing most compressed air supplement, namely places with high pressure in the conveying pipeline.

Description

Diaphragm straight-through type on-way air supplement unit

Technical Field

The invention belongs to the technical field of on-way air supply devices, and particularly relates to a diaphragm through type on-way air supply device.

Background

For a long-distance pneumatic conveying system, in order to ensure that pipes are not blocked, a companion blowing pipe is required to be arranged along a main conveying pipeline, and 1 air supplement unit is arranged every several meters and used for supplementing compressed air into the conveying pipeline to prevent the pipes from being blocked.

Traditional on-way air supplement unit is by will forming by manual ball valve, Y type filter, connecting pipe, check valve etc. its theory of operation is: during conveying, the pneumatic valve before the air blowing is opened, and compressed air enters the ash conveying pipe through the manual ball valve and the one-way valve of the connecting pipe, so that the aim of supplementing the compressed air is fulfilled.

Because all air supplementing devices share one accompanying blowing air supply and are opened simultaneously, the air supplementing device close to the tail end of the conveying pipe has the defects that a large amount of air compressed air flows away from the tail end due to small back pressure in the conveying pipe, and the front end which needs air supplementing most cannot be supplemented with enough air amount due to large back pressure in the conveying pipe, so that the compressed air is increased, the blowing assisting effect is not obvious and the like.

Disclosure of Invention

The invention aims to solve the defects of the prior art and provides a diaphragm straight-through type on-way air supply device which is characterized by comprising a valve body and a valve cover; the valve body below with the side be equipped with respectively and take over and intake pipe, valve body another side and valve gap link to each other, the valve gap be T type cylinder, the centre of valve gap is equipped with the through-hole, the through-hole of valve gap in the middle of be equipped with the spring, spring one side link to each other with the diaphragm mount pad, the opposite side links to each other with the pressure regulating knob, diaphragm mount pad center fixed through screw thread and case, the case is fixed with the diaphragm centre gripping through the gasket in the middle of with the diaphragm mount pad, the outside of pressure regulating knob and valve gap pass through threaded connection.

Furthermore, the valve body is a cylinder, a connecting pipe threaded hole is formed in the bottom side of the end face of the valve body, an air inlet pipe threaded hole is formed in one end of the side face of the valve body, and a valve cover mounting face is arranged at the other end of the side face of the valve body.

Furthermore, the valve cover is a T-shaped cylinder, a through hole is formed in the middle of the valve cover, a spring is arranged in the middle of the through hole, and the outer side of the thin cylinder at the other end of the valve cover is connected with an adjusting knob through threads.

Furthermore, one side of the spring is connected with the diaphragm mounting seat, the center of the diaphragm mounting seat is fixed with the valve core through threads, the diaphragm is clamped and fixed between the valve core and the diaphragm mounting seat through a gasket, and the other end of the spring is connected with the top of the inner opening of the adjusting knob.

Further, the bonnet is mounted on a bonnet mounting surface on a side of the valve body using bolts.

Has the advantages that:

in the conveying process, the conveying pressure is relatively low when the material flows smoothly, and compressed air is not required to be supplemented at the end of the conveying process; when the conveying is not smooth and the pipe is prone to being blocked, the pressure in the pipeline is high, and compressed air needs to be supplemented at the end of the process; when the material flow passes through, the pressure in the pipeline is high, and the compressed air is required to be supplemented at the stopping position; when the conveying is about to be finished and the materials in the pipeline are less, compressed air does not need to be supplemented when the conveying pressure is low; by utilizing the pressure characteristic in the conveying pipeline, the on-way air supplement device is automatically opened at the position where the pressure in the conveying pipeline is high, and the on-way air supplement device is automatically closed at the position where the pressure in the conveying pipeline is low.

And a diaphragm through structure is adopted, so that the structure is simple, and the action is reliable and sensitive.

The opening and closing of the device is determined only by the pressure in the conveying pipeline, and the device is controlled in no other way and is completely automatically opened only in the place where the compressed air is needed to be supplemented most, namely the pressure in the conveying pipeline is high.

Drawings

FIG. 1 is a schematic view of a diaphragm-type in-process air-supplying device;

in the figure: 1. the pressure regulating valve comprises a pressure regulating knob, 2, a spring, 3, a valve cover, 4, a valve core, 5, a diaphragm, 6, a valve body, 7, an air inlet pipe, 8, a connecting pipe and the like, and 9 is arranged in an inner cavity of the valve body.

Detailed Description

For the purpose of enhancing the understanding of the present invention, the present invention will be further described in detail with reference to the following examples and the accompanying drawings, which are only used for explaining the present invention and are not to be construed as limiting the scope of the present invention.

An implementation example;

a diaphragm straight-through type on-way air supplement unit is characterized by comprising a valve body and a valve cover; the valve body below with the side be equipped with respectively and take over and intake pipe, valve body another side and valve gap link to each other, the valve gap be T type cylinder, the centre of valve gap is equipped with the through-hole, the through-hole of valve gap in the middle of be equipped with the spring, spring one side link to each other with the diaphragm mount pad, the opposite side links to each other with the pressure regulating knob, diaphragm mount pad center fixed through screw thread and case, the case is fixed with the diaphragm centre gripping through the gasket in the middle of with the diaphragm mount pad, the outside of pressure regulating knob and valve gap pass through threaded connection.

As shown in figure 1, in the diaphragm through type on-way air supply device, a pressure regulating knob 1 presses a diaphragm 5 and a valve core 4 onto a sealing surface of an air inlet pipe 7 through a spring 2, the air inlet pipe 7 and a connecting pipe 8 are both connected onto a valve body 6, and the connecting pipe 8 is communicated with a valve body inner cavity 9 of the valve body 6.

When in use, compressed air is connected to the air inlet pipe 7, and the connecting pipe 8 is connected to the main conveying pipe. Every several meters is connected with an air supply device along the form.

Compressed air is accessed through the air inlet pipe 7, and because the elasticity of the spring 2 is far larger than the pressure of the compressed air acting on the valve core 4, the compressed air can not enter the inner cavity 9 of the valve body, and at the moment, the device is closed.

When the conveying pressure in the conveying pipeline is increased, the pressure in the inner cavity 9 of the valve body is increased, the pressure acting on the diaphragm is increased, when the pressure is greater than the elastic force of the spring 2, the diaphragm 5 is pushed to move leftwards, the valve core 4 is driven to move leftwards together, so that the sealing port of the air inlet pipe 8 is opened, the device is opened, and compressed air flows into the connecting pipe 8 through the inner cavity 9 of the valve body and enters the main conveying pipe.

When the pressure in the delivery pipe is reduced, the pressure in the valve body inner cavity 9 is reduced, the pressure acting on the diaphragm 5 is reduced, and when the elastic force of the spring 2 is greater than the sum of the pressure of the valve body inner cavity 9 acting on the diaphragm and the pressure of compressed air acting on the valve core 4, the diaphragm 5 drives the valve core 4 to move rightwards to prop against the sealing surface of the air inlet pipe 7, so that the compressed air is closed.

It can be seen that the opening and closing of the device is determined by the pressure in the ash conveying pipe, and the device is opened when the pressure is high and closed when the pressure is low.

In this embodiment, the pressure of the spring acting on the diaphragm can be adjusted by the pressure adjusting knob 1, which can be used to change the pressure threshold of the opening device.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims

1. A diaphragm straight-through type on-way air supplement unit is characterized by comprising a valve body and a valve cover; the valve body below with the side be equipped with respectively and take over and intake pipe, valve body another side and valve gap link to each other, the valve gap be T type cylinder, the centre of valve gap is equipped with the through-hole, the through-hole of valve gap in the middle of be equipped with the spring, spring one side link to each other with the diaphragm mount pad, the opposite side links to each other with the pressure regulating knob, diaphragm mount pad center fixed through screw thread and case, the case is fixed with the diaphragm centre gripping through the gasket in the middle of with the diaphragm mount pad, the outside of pressure regulating knob and valve gap pass through threaded connection.

2. The diaphragm through type on-pass air supplement unit of claim 1, wherein the valve body is a cylinder, the bottom side of the end face of the valve body is provided with a threaded hole for the connection pipe, one end of the side face of the valve body is provided with a threaded hole for the air inlet pipe, and the other end of the side face of the valve body is provided with a valve cover mounting face.

3. The diaphragm through type on-way air supplement unit according to claim 1, characterized in that the valve cap is a T-shaped cylinder, a through hole is provided in the middle of the valve cap, a spring is provided in the middle of the through hole, and an adjusting knob is screwed to the outside of the thin cylinder at the other end of the valve cap.

4. The diaphragm through type on-pass air supplement unit of claim 1, wherein one side of the spring is connected to the diaphragm mounting seat, the center of the diaphragm mounting seat is fixed to the valve core by screw threads, the diaphragm is clamped and fixed between the valve core and the diaphragm mounting seat by a gasket, and the other end of the spring is connected to the top of the inner opening of the adjusting knob.

5. A diaphragm through type on-pass air supplement unit according to claim 1, wherein the valve cover is mounted on the valve cover mounting surface of the valve body side using bolts.