CN201028046Y

CN201028046Y - Drowned pulse valve

Info

Publication number: CN201028046Y
Application number: CNU2007200367162U
Authority: CN
Inventors: 陈玉梅; 徐辉
Original assignee: Anhui Yuanchen Environmental Protection Science and Technology Co Ltd
Current assignee: Anhui Yuanchen Environmental Protection Science and Technology Co Ltd
Priority date: 2007-04-25
Filing date: 2007-04-25
Publication date: 2008-02-27
Anticipated expiration: 2017-04-25

Abstract

The utility model provides an embedded pulse valve and belongs to the valve technical field, aiming to provide an improved embedded pulse valve which can effectively reduce the resistance in an air exhausting hole, increase the blast and the displacement of membranes, quickly discharges the pressure air, and has high working efficiency and good dust-cleaning effect. The key points of the art are that: an air exhausting hole (I) which is arranged on the side wall of an inner cavity arranged on the upper end of a big valve cover (4) and communicated with the atmosphere has a diameter of at least 14.5mm. As the diameter of the air exhausting is increased to 14.5 mm, the discharged amount of the air is increased effectively, and the resistance to the discharged air is reduced, and the air in an air cavity C and D arranged inside the body of the valve can be discharged out quickly through the air exhausting hole, thereby driving the big and small membranes moves quickly upward. Meanwhile, the compressed air in an air bag enters an air exhausting cavity A quickly through an air cavity B and then enters a blast pipe connected in a valve seat quickly to enter a filtering bag to blow off dust. The utility model has a good dust blowing effect and high work efficiency, and can reduce effective energy consumption, and prolong the service life of the membranes.

Description

The submerged sentinel valve

Technical field

The utility model relates to a kind of improved valve, particularly a kind of submerged sentinel valve that is widely used in the large-scale sack cleaner of industries such as iron and steel, smelting, cement, chemical industry, mine.

Background technique

At present, large-scale sack cleaner domestic production, that be applied to industries such as iron and steel, smelting, cement, chemical industry, mine flood formula sentinel valve (see figure 1), all be the cavity in the big valve bodies to be divided into exhaust cavity A, back air cavity C and preceding air cavity B basically by big diaphragm 3; By Small diaphragm-piece 7 being divided into upper gas chamber E, lower air chamber D in the little valve body.Air cavity F links through throttle orifice G and upper gas chamber E, lower air chamber D through throttle orifice J with after air cavity C link.After solenoid valve 10 is received the deashing signal that controller sends, promptly open piston rod, make gas enter atmosphere through its exhaust port, upper gas chamber E pressure descends, move on the Small diaphragm-piece 7, thereby opened lower air chamber D and back air cavity C, the gas of lower air chamber D and back air cavity C is discharged through the exhaust port worker, causes air cavity C pressure to descend, move on the big diaphragm, gas in the gas bag enters exhaust cavity A by preceding air cavity B, and the gas moment process in the gas bag connects the winding-up pipe and sprays into filter bag, carries out deashing.After this, because the sealing of solenoid valve relief opening, Small diaphragm-piece moves down with big diaphragm, at this moment back air cavity C and upper gas chamber E pressure reach balanced, and under the effect of spring 6 and 13, large and small diaphragm moves down, big diaphragm will connect the winding-up mouth of pipe and hold out against, thereby finish the pulsatile once deashing process.But,, have only 13mm because the diameter of the exhaust port I of existing submerged sentinel valve is less.Therefore, when calm the anger by the time, cause calming the anger owing to its bore is too little and wait that the time of releasing is long, thereby cause the complete machine slow motion, inefficiency, ash-removal effect is poor; Simultaneously, can not in time discharge and cause diaphragm to be in tensioned state for a long time and impaired, thereby cause diaphragm to shorten working life owing to calm the anger.

Summary of the invention

The purpose of this utility model provides a kind of improved submerged sentinel valve, and it can effectively reduce the exhaust passage resistance, increase the winding-up amount, make diaphragm displacement big, put calm the anger fast, high working efficiency, ash-removal effect is good; Simultaneously, can also effectively reduce the working life of energy consumption, prolongation diaphragm.

Its technological scheme is: a kind of submerged sentinel valve, comprise valve seat, large, medium and small valve gap, large and small diaphragm and large and small hard core and solenoid valve is characterized in that: the diameter of the exhaust port of being offered on the intracavity sidewall of described big valve gap upper end that is communicated with atmosphere is at least 14.5mm.

Its technique effect is: since the diameter reaming of the exhaust port that will be communicated with atmosphere to 14.5mm and more than, so increased the air displacement of its gas effectively, the resistance of exhaust is reduced, back air cavity C in the valve body and the gas among the lower air chamber D can be discharged rapidly by this exhaust port, thereby driving large and small diaphragm moves on rapidly, pressurized air in the gas bag enters exhaust cavity A rapidly by preceding air cavity B, and enters fast in the winding-up pipe that is connected in the valve seat, and then enters filter bag and carry out jetting deashing.Its ash-removal effect is good, high working efficiency; Simultaneously, can also effectively reduce the working life of energy consumption, prolongation diaphragm.

Description of drawings

Fig. 1 is the utility model structural representation.

Embodiment

As shown in Figure 1, the submerged sentinel valve, by valve seat, large, medium and small valve gap, large and small diaphragm and large and small hard core and solenoid valve are formed.Big diaphragm 3 places between two big hard cores 16 in the valve body, is connected and fixed by bolt 17.Spring 6 places between the inner and big hard core 16 of big valve gap 4.The edge of big diaphragm places between valve seat 1 and the big valve gap 4, is connected and fixed by bolt 5, thereby the cavity in the big valve body is divided into exhaust cavity A, back air cavity C and preceding air cavity B.Small diaphragm-piece 7 places between two little hard cores 14, is connected and fixed by bolt 15.Spring 13 places between valve gap the inner and the little hard core.The edge of Small diaphragm-piece places between big valve gap and the valve gap 8, is connected and fixed by bolt 12, thereby the cavity in the little valve body is divided into upper gas chamber E and lower air chamber D.Upper gas chamber E is by throttle orifice G and air cavity F UNICOM, and lower air chamber D is by throttle orifice J and back air cavity C UNICOM.The exhaust port I that is communicated with atmosphere that is offered on the intracavity sidewall of big valve gap 4 upper ends, after reaming, its diameter is at least 14.5mm.Be connected and fixed by bolt 11 between little valve gap 9 and the middle valve gap, the upper gas chamber E in the inner chamber of little valve gap and the middle valve gap is communicated with.Little valve gap and solenoid valve 10 are connected and fixed, and its inner chamber is communicated with.Connect the winding-up pipe by seal ring 2 on the inwall of valve seat 1.

Claims

1. submerged sentinel valve, comprise valve seat, large, medium and small valve gap, large and small diaphragm and large and small hard core and solenoid valve is characterized in that: the diameter of the exhaust port of being offered on the intracavity sidewall of described big valve gap (4) upper end that is communicated with atmosphere (I) is at least 14.5mm.