CN220992043U - Flange formula changer diaphragm seal flange washing unit - Google Patents

Abstract

The utility model discloses a flushing device for a diaphragm seal flange of a flange transmitter, which is arranged between a flange diaphragm capsule and a matched flange and comprises a matched flange, a gasket, a flushing ring, a winding gasket, a pressure detection part, a ring holder, a flushing fluid inlet pipe, an exhaust/drain plug, a mounting screw and a bolt; the gasket is connected between the matched flange and the front end of the flushing ring, and the winding gasket is positioned between the rear end of the flushing ring and the pressure detection component; two parallel screw holes are formed in the side wall of the flushing ring, and two corresponding screw holes are formed in the corresponding side of the side wall; the screw holes on the side wall of the flushing ring are provided with ring holders which are fixed by screws; the top and the bottom of the side wall of the flushing ring are respectively provided with two corresponding through holes, a flushing liquid inlet pipe is arranged in the upper through hole, and an exhaust/liquid discharge plug is arranged in the lower through hole.

Description

Flange formula changer diaphragm seal flange washing unit

Technical Field

The utility model belongs to the technical field of cleaning equipment, and particularly relates to a flange type transmitter diaphragm seal flange flushing device.

Background

The diaphragm sealed transmitter is formed by adding a remote transmission sealing device on the basis of a common transmitter, so the diaphragm sealed transmitter is also called remote transmission transmitter or diaphragm sealed transmitter. The remote seal device consists of a flange diaphragm capsule, a capillary tube and filling liquid in the capillary tube. When in operation, the medium to be measured acts on the isolating diaphragm of the flange diaphragm box to deform the diaphragm, then the pressure is transmitted to the sensitive element of the transmitter through the filling liquid in the capillary tube, and the instrument outputs corresponding signals after conversion. And in a common transmitter, a medium to be measured enters a measuring chamber of the transmitter through a pressure guide pipe. If the medium to be measured is a viscous liquid, the impulse pipe is easy to be blocked. At present, the capillary tube is used for replacing the impulse tube, so that the blockage phenomenon can not exist. Because the capillary tube is of a sealing structure, the filling liquid in the capillary tube is selected, and the chemical and physical properties are stable, and the capillary tube is not easy to congeal and vaporize as the medium in the pressure guide tube, so that the filling of isolating liquid, an isolator, a condenser and other auxiliary equipment is not required to be added as in a common transmitter. Thus, the measurement accuracy can be improved, and the maintenance workload can be reduced. Meanwhile, as the flange diaphragm capsule is far away from the transmitter body, the liquid receiving temperature of the instrument can be increased, the maximum liquid receiving temperature can reach 315 ℃, and the application range can be enlarged. The method is widely applied in the fields of metallurgy, chemical industry, environmental protection and the like, and is particularly suitable for liquid level measurement of viscous liquid serving as a measured medium, such as a benzene washing tower, a tar fraction tower, an industrial naphthalene primary distillation tower, a rectifying tower, an asphalt flash tower and the like of a coking plant. The liquid level measurement of viscous liquid in the coking gas recovery and purification process is very important data, and plays a very important role in product quality control and production safety. However, as the coking chemical production medium to be measured is viscous liquid, the coking chemical production medium is easy to deposit in the paired flange pipes in long-period work, so that the measurement accuracy is reduced, and the production operation is difficult.

Disclosure of utility model

The utility model provides a flushing device for a diaphragm seal flange of a flange type transmitter, which is used for flushing the flange on line under the condition that the flange is not detached by installing a flushing ring chamber between a flange diaphragm box and a matched flange, and cleaning sediment in a flange diaphragm and a matched flange pipe.

Therefore, the utility model adopts the following technical scheme:

A flushing device for a diaphragm seal flange of a flange transmitter comprises a matched flange, a gasket, a flushing ring, a winding gasket, a pressure detection part, a ring holder, a flushing fluid inlet pipe, an exhaust/drain plug, a mounting screw and a bolt;

The gasket is connected between the matched flange and the front end of the flushing ring, and the winding gasket is positioned between the rear end of the flushing ring and the pressure detection component; two parallel screw holes are formed in the side wall of the flushing ring, and two corresponding screw holes are formed in the corresponding side of the side wall; the screw holes on the side wall of the flushing ring are provided with ring holders which are fixed by screws;

The top and the bottom of the side wall of the flushing ring are respectively provided with two corresponding through holes, a flushing liquid inlet pipe is arranged in the upper through hole, and an exhaust/liquid discharge plug is arranged in the lower through hole.

The utility model has the beneficial effects that:

A flushing ring chamber is arranged between the flange diaphragm capsule and the matched flange, and is used for flushing the flange on line under the condition that the flange is not detached, so that sediment in a matched flange pipe is removed, continuous, accurate and reliable measurement of the diaphragm sealed transmitter is realized, and the manual maintenance amount is less than or equal to 2 times/year; the device is simple and has good engineering application effect.

Drawings

FIG. 1 is an exploded assembly view of the present utility model;

FIG. 2 is a side view of the present utility model;

In the figure: 1-matched flange, 2-gasket, 3-flushing ring, 4-wound gasket, 5-pressure detection component, 6-ring holder, 7-flushing fluid inlet pipe, 8-exhaust/drain plug, 9-mounting screw, 10-bolt.

Detailed Description

The utility model is further described with reference to the drawings and the specific embodiments below:

As shown in fig. 1 and 2, the device is installed between a flange bellows and its mating flange, and comprises a mating flange 1, a gasket 2, a flushing ring 3, a winding gasket 4, a pressure detecting member 5, a ring holder 6, a flushing liquid inlet pipe 7, an exhaust/drain plug 8, mounting screws 9, bolts 10. The matched flange 1 is connected with the gasket 2, the gasket 2 is connected with the flushing ring 3, the flushing ring 3 is connected with the winding gasket 4, and the winding gasket 4 is connected with the pressure detection part 5.

Installing a flushing ring: mounting the ring holder 6 on the rinse ring 3 and screwing the mounting screw 9; placing the winding gasket 4 into the annular groove, flushing with the surface of the pressure detection part 5, and screwing the mounting screw 9 of the ring holder 6; adjusting the position of the flushing ring, the flushing liquid inlet pipe 7 and the exhaust/drain plug 8 are kept vertical; the bolts 10 are tightened so that there is no gap between the flushing ring 3 and the pressure detecting member 5. After installation on the process flange, it was confirmed that there was no gap between the purge ring and the pressure sensing component.

During flushing, the plug at the top of the flushing fluid inlet pipe 7 is removed, the plug of the exhaust/drain plug 8 is removed, the flushing fluid inlet pipe 7 is connected with the flushing fluid pipe, the matched flange 1 is filled with cleaning fluid, the inner wall of the flange is cleaned under the action of the cleaning fluid, and the cleaned fluid is drained from the exhaust/drain plug 8.

Claims (1)

1. The flushing device is arranged between the flange diaphragm box and the matched flange and comprises a matched flange, a gasket, a flushing ring, a winding gasket, a pressure detection part, a ring holder, a flushing fluid inlet pipe, an exhaust/drain plug, a mounting screw and a bolt;

The gasket is connected between the matched flange and the front end of the flushing ring, and the winding gasket is positioned between the rear end of the flushing ring and the pressure detection component; two parallel screw holes are formed in the side wall of the flushing ring, and two corresponding screw holes are formed in the corresponding side of the side wall; the screw holes on the side wall of the flushing ring are provided with ring holders which are fixed by screws;

The top and the bottom of the side wall of the flushing ring are respectively provided with two corresponding through holes, a flushing liquid inlet pipe is arranged in the upper through hole, and an exhaust/liquid discharge plug is arranged in the lower through hole.