CN2336167Y

CN2336167Y - Diaphragm automatic drainage valve

Info

Publication number: CN2336167Y
Application number: CN 98211001
Authority: CN
Inventors: 武振华
Original assignee: Individual
Current assignee: Individual
Priority date: 1998-02-03
Filing date: 1998-02-03
Publication date: 1999-09-01
Anticipated expiration: 2008-02-03

Abstract

The utility model relates to a diaphragm automatic drainage valve for drain water and oil which is coagulated out of a container for storing and transporting air and a pipeline for storing and transporting air, which is arranged on the container and the pipeline. The utility model mainly comprises a valve body, a valve cover, an upper valve cover, a filtering net, a lever, a floating ball, a diaphragm sheet, a guide valve flap and a spring sheet. The valve has the characteristics of large drainage amount, smooth drainage passage and short and fast drainage time. The utility model effectively solves the problems of easy block and short service life of automatic drainage valves.

Description

The diaphragm type automatic blowdown valve

The utility model relates to a kind of automatic eliminating from storing and transport a kind of device of the soiling solution that freeze-outs gas containers and the pipeline.

At present, known automatic blowdown valve, for example a kind of relying under the gas pressure effect, the elastic force that piston overcomes spring upwards slowly moves, and piston moves past in the journey last, and the conical surface can not form sealing with annular ring immediately under the mandrel, and liquid discharges successively in the cup and make.It can only slowly discharge soiling solution its structure and operating principle decision, is not with impact, thereby can only designs less filter screen order number and pollutant exhaust hole, so be unfavorable for the discharge of fine particle and viscous crude.Comprise the automatic blowdown valve of certain quite influential company of Japan, also can only use about two months just blocked.

The purpose of this utility model provides that a kind of blowdown flow rate is big, and the drain outlet is unobstructed, and blowing time is short and fast; Tightness is good; The diaphragm type automatic blowdown valve reliable, that the life-span is long.

Technical measures of the present utility model are as follows: the diaphragm type automatic blowdown valve mainly is made up of valve body, upper end cap, valve gap, filter screen, lever, ball float, diaphragm, pilot valve lobe, spring sheet.Its mounting point and annexation are: upper end cap is connected the upper end of valve body, and valve gap is connected the downside of valve body.Air relief cock is connected on the valve gap, filter screen is installed in upper end cap inner chamber downside, lever, ball float are contained in the filter screen lower side, one end of lever is connected on the ball float, the other end that the pilot valve lobe is housed is connected on the lever ball support, the pilot valve lobe drops on the suction port, and lever ball support, lever ball support ring, front diaphragm (seal membrane), pilot valve body, rear film (power diaphragm), valve gap laterally link into an integrated entity successively.Valve gap is connected on the valve body.Piston is positioned at the pilot valve intracoelomic cavity, and both ends of the surface are adjacent with forward and backward diaphragm respectively.The soiling solution of separating in ball float is accompanyed or follow air that enters the float chamber through filter screen increases and when being increased to certain altitude, the moving lever pilot valve lobe of spherical zone is opened inlet hole, makes pressurized air enter the diaphragm cavity.Because the rear film work area that is active in one's movements is greater than the work area of front diaphragm, so produce certain axial force.Promote piston and open the blowdown sealed mouth, soiling solution is discharged by sewage draining exit rapidly.

Along with soiling solution is discharged, ball and lever descend, and the pilot valve lobe is closed inlet hole, and the auxiliary front diaphragm of spring sheet promotes piston reset, thereby closes the blowdown sealed mouth.

When water level in the valve body rose once more, the next discharge opeing process that opens and closes just began again.Thereby realized the purpose of this utility model.

Owing to adopt such scheme, efficiently solve the easily stifled and short problem of life-span of known blowdown valve.

Below in conjunction with drawings and Examples the utility model is further specified, Fig. 1 is product structure figure, and Fig. 2 is a partial enlarged drawing.

Among the figure 1, upper end cap 2, filter screen 3, float chamber 4, inlet hole 5, ball float 6, lever 7, pilot valve lobe 8, spring sheet 9, lever ball support 10, lever ball support ring 11, front diaphragm 12, rear film 13, piston 14, valve gap 15, air relief cock 16, pollutant exhaust hole 17, blowdown sealed mouth 18, pilot valve body 19, valve body 20, diaphragm cavity

In the accompanying drawings, upper end cap (1) is connected the upper end of valve body (19) with thread forms; Valve gap (14) is connected the downside of valve body (19); To be stainless steel order number be fixed on upper end cap (1) inner chamber downside for the filter screen (2) of (20) to material; Ball float (5) is welded with the stainless steel punching press, is positioned at the float chamber (3) of filter screen (2) downside; One end of lever (6) is welded on the ball float (5), and the other end that pilot valve lobe (7) is housed is connected on the lever ball support (9), and pilot valve lobe (7) drops on the suction port (4); Lever ball support (9) is connected the right side of lever ball support ring (10); Lever ball support ring (10) is connected from right to left successively with front diaphragm (11), pilot valve body (18), rear film (12), valve gap (14); Piston (13) is positioned at pilot valve body (18) inner chamber, can slide between front diaphragm (11) and rear film (12); One end of spring sheet (8) is fixed on the right flank of lever ball support ring (10), and the other end that has R orphan's degree is positioned at the right flank of front diaphragm (11).

Claims

1, a kind of diaphragm type automatic blowdown valve mainly is made up of valve body, upper end cap, valve gap, filter screen, lever, ball float, diaphragm, pilot valve lobe, spring sheet.It is characterized in that: upper end cap (1) is connected the upper end of valve body (19), and valve gap (14) is connected the lower side of valve body (19), and air relief cock (15) is connected on the valve gap (14).Filter screen (2) is contained in the lower side of upper end cap (1) inner chamber, lever (6), ball float (5) are contained in the lower side of filter screen (2), one end of lever (6) is connected on the ball float (5), the other end that pilot valve lobe (7) is housed is connected on the lever ball support (9), pilot valve lobe (7) drops on the pilot valve inlet hole (4), and lever ball support (9), lever ball support ring (10), front diaphragm (11), pilot valve body (18), rear film (12), valve gap (14) laterally link into an integrated entity successively.Piston (13) is positioned at pilot valve body (18) inner chamber, and is isometric with pilot valve body (18).Piston (13) can slide between forward and backward diaphragm (11,12).

2, diaphragm type automatic blowdown valve as claimed in claim 1 is characterized in that having adopted two diaphragms, and rear film (12) work area is greater than front diaphragm (11).

3, diaphragm type automatic blowdown valve as claimed in claim 1 is characterized in that front diaphragm (seal membrane 11) side is equipped with spring sheet (8).