CN202729345U

CN202729345U - Pneumatic dedusting system

Info

Publication number: CN202729345U
Application number: CN 201220427810
Authority: CN
Inventors: 汪文良
Original assignee: Individual
Current assignee: Individual
Priority date: 2012-08-27
Filing date: 2012-08-27
Publication date: 2013-02-13
Anticipated expiration: 2022-08-27

Abstract

A pneumatic dedusting system comprises a bin pump feed valve, a stop valve, a deduster bucket and a high-pressure container, wherein the deduster bucket is communicated with a top feed hole of the bin pump feed valve and the high-pressure container is communicated with a bottom discharge hole of the bin pump feed valve. The high-pressure container is provided with a bin pump discharge valve, a breather valve and a high-pressure intake connector. An outlet end of the breather valve is communicated with the top of the deduster bucket trough an air pipe. A high-pressure pip is communicated with the high-pressure intake pipe and is used for being communicated with a high-pressure gas source. An upper valve body on a seal surface of the bin pump feed valve is provided with a through hole. The stop valve is connected to the outer wall of the valve body and is communicated with the through hole. The pneumatic dedusting system has the advantages that the bin pump feed valve which leaks can be conveniently located by a worker, maintenance of the pneumatic dedusting system is facilitated, and maintaining efficiency can be improved greatly.

Description

A kind of pneumatic ash removal system

Technical field

The utility model relates to a kind of pneumatics, particularly a kind of pneumatic ash removal system.

Background technology

Pneumatic ash removal system is the requisite deashing device of thermal powerplant, and a thermal powerplant all disposes a plurality of pneumatic ash removal systems usually.At present, existing pneumatic ash removal system generally comprises storehouse pump inlet valve, be connected the dust collector ash hopper that communicates with storehouse pump inlet valve upper end inlet point and be connected the high pressure vessel that communicates with pump inlet valve lower end, storehouse discharging opening, high pressure vessel is provided with storehouse pump bleeder valve, vent valve and high pressure admission interface, the vent valve exit end is connected with dust collector ash hopper top by a permeability cell and communicates, and the high pressure admission interface is connected with high-pressure air source by high-pressure pipe and communicates.During this pneumatic ash removal system work, need close first high-pressure pipe and storehouse pump bleeder valve, open again storehouse pump inlet valve and vent valve, coal ash is entered in the high pressure vessel through storehouse pump inlet valve from dust collector ash hopper, the effect of vent valve is that the residual residual air in the high pressure vessel is discharged, so that coal ash can enter in the high pressure vessel smoothly, after coal ash is full of high pressure vessel, close storehouse pump inlet valve and vent valve, then open storehouse pump bleeder valve and high-pressure pipe, utilize high pressure gas that the coal ash in the high pressure vessel is discharged from the exit end of storehouse pump bleeder valve.There is a weak point in the pneumatic ash removal system of said structure in actual application: because the storehouse pump inlet valve in the pneumatic ash removal system in use often can cause seal failure because of wearing and tearing; and storehouse pump inlet valve is in case leak; will cause the gaseous tension in the high-pressure air source to reduce; and then cause pneumatic ash removal system to work; therefore; the storehouse pump inlet valve that the staff need in time will occur to leak removes and overhauls; just can make pneumatic ash removal system recover as early as possible normal operation; yet; employed all pneumatic ash removal system of thermal powerplant all adopt same high-pressure air source to carry out air feed usually; that is to say; whichsoever the storehouse pump inlet valve in the pneumatic ash removal system leaks; all will cause the gaseous tension in this high-pressure air source to reduce; thereby all pneumatic ash removal systems all can't be worked; and the staff is in the situation that the storehouse pump inlet valve that can't directly know in which pneumatic ash removal system occurs to leak; storehouse pump inlet valve in all pneumatic ash removal systems can only be removed one by one and check, until find till that storehouse pump inlet valve that occurs to leak.Be not difficult to find out thus, the handling labor of existing pneumatic ash removal system not only bothers, and work efficiency is low.

The utility model content

The technical problems to be solved in the utility model is to provide a kind of and can make the staff find easily the storehouse pump inlet valve that leakage occurs, thereby not only can make handling labor become convenient, and can also greatly improve the pneumatic ash removal system of handling labor efficient.

For solving the problems of the technologies described above, the utility model provides a kind of pneumatic ash removal system of following structure: comprise storehouse pump inlet valve, be connected the dust collector ash hopper that communicates with storehouse pump inlet valve upper end inlet point and be connected the high pressure vessel that communicates with pump inlet valve lower end, storehouse discharging opening, high pressure vessel is provided with storehouse pump bleeder valve, vent valve and high pressure admission interface, the vent valve exit end is connected with dust collector ash hopper top by a permeability cell and communicates, connect on the high pressure admission interface and be connected with mutually high-pressure pipe, high-pressure pipe communicates for being connected with high-pressure air source, wherein, pneumatic ash removal system also comprises a shutoff valve, offer through hole on the valve body on pump inlet valve sealing surface top, storehouse, shutoff valve is connected on the valve body, and is connected with through hole and communicates.

A kind of pneumatic ash removal system described in the utility model, wherein, storehouse pump inlet valve is bell-jar inlet valve or board plug type inlet valve or rotation pendulum-type inlet valve.

After adopting said structure, compared with prior art, the utlity model has following advantage: when when the reduction of the gaseous tension in the high-pressure air source all pneumatic ash removal systems all can't be worked, the staff can open first one of them shutoff valve, then check whether this shutoff valve place has gas to discharge, if not having gas discharges from this shutoff valve, illustrate that then the corresponding storehouse of this shutoff valve pump inlet valve does not leak, if and have gas to discharge from this shutoff valve, illustrate that then leakage has occured the corresponding storehouse of this shutoff valve pump inlet valve, by that analogy, the staff can find easily all storehouse pump inlet valves that occur to leak and they are removed to overhaul and get final product, thereby not only greatly facilitate the handling labor of a kind of pneumatic ash removal system of the utility model, but also greatly improved handling labor efficient.

Description of drawings

Structural representation when Fig. 1 is a kind of pneumatic ash removal system employing of the utility model bell-jar inlet valve;

Structural representation when Fig. 2 is a kind of pneumatic ash removal system employing of the utility model board plug type inlet valve;

Fig. 3 is that a kind of pneumatic ash removal system of the utility model adopts the structural representation when rotating the pendulum-type inlet valve.

The specific embodiment

Below in conjunction with the drawings and specific embodiments a kind of pneumatic ash removal system of the utility model is described in further detail.

As shown in Figure 1, in this specific embodiment, a kind of pneumatic ash removal system of the utility model comprises storehouse pump inlet valve 1, dust collector ash hopper 2, shutoff valve 9 and be connected the high pressure vessel 3 that communicates with storehouse pump inlet valve 1 lower end discharging opening, be connected between dust collector ash hopper 2 lower ends and the storehouse pump inlet valve 1 upper end inlet point and be connected with mutually compensator 12, high pressure vessel 3 is provided with storehouse pump bleeder valve 4, vent valve 5 and high pressure admission interface 6, vent valve 5 exit end are connected with dust collector ash hopper 2 tops by a permeability cell 7 and communicate, connect on the high pressure admission interface 6 and be connected with mutually high-pressure pipe 8, high-pressure pipe 8 communicates for being connected with high-pressure air source, offer through hole 11 on the valve body 10 on pump inlet valve 1 sealing surface top, storehouse, shutoff valve 9 is connected on the valve body 10, and be connected with through hole 11 and communicate, storehouse pump inlet valve 1 is the bell-jar inlet valve.

Storehouse pump inlet valve 1 sealing surface described in a kind of pneumatic ash removal system of the utility model refers to when storehouse pump inlet valve 1 cuts out, formed sealing surface after cooperating between the valve body 10 of storehouse pump inlet valve 1 and the core assembly.

Above-described embodiment is described preferred implementation of the present utility model; be not that scope of the present utility model is limited; under the prerequisite that does not break away from the utility model design spirit; various distortion and improvement that those of ordinary skills make the technical solution of the utility model; as storehouse pump inlet valve 1 being changed into board plug type inlet valve as shown in Figure 2 or changing as shown in Figure 3 rotation pendulum-type inlet valve into, all should fall in the protection domain that the utility model claims determine.

Claims

1. pneumatic ash removal system, comprise storehouse pump inlet valve (1), be connected the dust collector ash hopper (2) that communicates with storehouse pump inlet valve (1) upper end inlet point and be connected the high pressure vessel (3) that communicates with storehouse pump inlet valve (1) lower end discharging opening, described high pressure vessel (3) is provided with storehouse pump bleeder valve (4), vent valve (5) and high pressure admission interface (6), described vent valve (5) exit end is connected with dust collector ash hopper (2) top by a permeability cell (7) and communicates, the upper connection of described high pressure admission interface (6) is connected with high-pressure pipe (8) mutually, described high-pressure pipe (8) communicates for being connected with high-pressure air source, it is characterized in that: described pneumatic ash removal system also comprises a shutoff valve (9), offer through hole (11) on the valve body (10) on described storehouse pump inlet valve (1) sealing surface top, described shutoff valve (9) is connected on the valve body (10), and is connected with through hole (11) and communicates.

2. a kind of pneumatic ash removal system according to claim 1 is characterized in that: described storehouse pump inlet valve (1) is bell-jar inlet valve or board plug type inlet valve or rotation pendulum-type inlet valve.