CN220748193U - Flat gland sealing structure of mud filter of ocean module drilling machine - Google Patents

Abstract

The utility model discloses a flat gland sealing structure of a mud filter of an ocean module drilling machine, which comprises a groove formed on the top surface of a filter body, a sealing ring embedded in the groove and a filter cover body, wherein the filter cover body comprises a hammering union ring and a gland, the gland is pressed on the top surface of the filter body, and the hammering union ring is in threaded connection with the filter body; the inner wall of the upper end of the hammering union ring forms an inner convex ring, and the convex ring is pressed on the gland. The utility model can effectively ensure the sealing effect of the top of the slurry filter, is convenient to detach in the use process, can better control the deformation of the sealing surface, the sealing surface of the gland and the rubber gasket are not easy to damage, prolongs the service life, reduces the use cost and improves the operation efficiency.

Description

Flat gland sealing structure of mud filter of ocean module drilling machine

Technical Field

The utility model belongs to the field of drilling mud filtering systems of ocean module drilling machines, and particularly relates to a flat gland sealing structure of a mud filter of an ocean module drilling machine.

Background

Currently, in the marine module drilling project, a mud filter is usually arranged in front of a high-pressure drilling pump, and the treatment capacity is usually designed to be 200m ³ And (3) the filtering medium is as follows: mud, seawater, diesel oil, etc., the maximum allowable pressure drop is 100Kpa, the filtering precision is 5mm, the design pressure is 800Kpa G, the design temperature is 100 ℃, and the inner diameter of the filter is about 650mm. Because of the piston stroke requirement of the high pressure drilling pump, the mud filter is in the working condition environment with frequency vibration for a long timeThe filter body sealing failure occurs for many times in the operation process of a plurality of projects in the past, so that medium leakage overflows, the normal operation of the ocean module drilling machine is influenced, and the pump is stopped, replaced and overhauled, and the drilling aging is influenced.

Disclosure of Invention

The utility model provides a flat gland sealing structure of a mud filter of a marine module drilling machine, which aims to overcome the defects in the prior art.

The utility model is realized by the following technical scheme:

the utility model provides a dull and stereotyped gland seal structure of ocean module rig mud filter, includes the recess that forms in filter body top surface, embedded sealing washer and the filter lid in the recess, the filter lid includes hammering union ring and gland, and the gland pressfitting is in filter body top surface, hammering union ring and filter body threaded connection.

In the technical scheme, the inner wall of the upper end of the hammering union ring forms an inner convex ring, and the convex ring is pressed on the gland.

In the technical scheme, the outer wall of the hammering union ring forms an outer convex ring.

In the above technical scheme, the sealing ring is a rubber gasket.

In the technical scheme, the gland is of a disc-shaped flat plate structure.

The beneficial effects of the utility model are as follows:

the utility model provides a flat gland sealing structure of a mud filter of an ocean module drilling machine, which adopts a hammering union rotation screw thread fastening mode to compact a gasket between a cover plate and a groove at the top of a body, so as to realize sealing, changes a traditional blind plate union into a union ring and an annular flat gland, has no welding fixation between the union ring and the annular flat gland, better controls the deformation of a sealing surface, directly machines the annular flat gland, and greatly improves the planeness of the sealing surface; the adjustment time of the manual gland in the installation process of the slurry filter is reduced; in the filter mounting and replacing process, dynamic friction and collision are transferred between the union ring and the annular flat gland, the flat gland and the rubber gasket at the top groove of the filter body are relatively static, a better protection effect is achieved on the sealing surface and the rubber gasket, and the service life is prolonged.

Drawings

Fig. 1 is a schematic structural view of the present utility model.

Wherein:

1 hammering union ring 2 gland

3 the filter body 4 is sealed.

Other relevant drawings may be made by those of ordinary skill in the art from the above figures without undue burden.

Detailed Description

In order to make the technical solution of the present utility model better understood by those skilled in the art, the technical solution of the present utility model will be further described below by means of specific embodiments in combination with the accompanying drawings of the specification.

As shown in fig. 1, the flat gland sealing structure of the mud filter of the marine module drilling machine comprises a groove formed on the top surface of a filter body 3, a sealing ring 4 embedded in the groove and a filter cover body, wherein the filter cover body comprises a hammering union ring 1 and a gland 2, the gland 2 is pressed on the top surface of the filter body 3, and the hammering union ring 1 is in threaded connection with the filter body 3;

hammering the inner wall of the upper end of the union ring 1 to form an inner convex ring, and pressing the convex ring on the gland 2;

the outer wall of the hammering union ring 1 forms an outer convex ring, so that the screw thread fastening is convenient to rotate.

In this embodiment, the sealing ring 4 is a rubber gasket.

In this embodiment, the gland 2 is a disc-shaped flat plate structure.

The sealing principle of the utility model:

there is no welded connection relation between gland 2 and hammering union ring 1, through hammering union ring 1, pressfitting gland 2 on filter body 3, gland 2 is static relatively with filter body 3 and sealing washer 4, compresses tightly gland 2 in order to realize compressing tightly embedded sealing washer 4 through rotatory hammering union ring 1, forms stable seal.

The installation process of the utility model comprises the following steps:

the rubber gasket 4 is embedded into a groove at the top of the filter body 3, the flat gland 2 and the union ring 1 are placed and pressed at a fixed position to press the rubber gasket 4, the union ring 1 is screwed up by rotating threads and finally fastened by hammering, the annular flat gland 2 and the filter body 3 are tightly pressed and sealed, and the flat gland 2 and the rubber gasket 4 at the groove at the top of the filter body 3 are relatively static; the disassembly step is opposite to the assembly step, and the annular flat gland 2 can be removed by only disassembling the upper hammer union ring 1 so as to replace the rubber gasket 4 and the filter element of the filter.

It should be noted that, without conflict, the embodiments of the present utility model and features of the embodiments may be combined with each other.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first", "a second", etc. may explicitly or implicitly include one or more such feature. In the description of the present utility model, unless otherwise indicated, the meaning of "a plurality" is two or more.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art in a specific case.

The applicant declares that the above is only a specific embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and it should be apparent to those skilled in the art that any changes or substitutions that are easily conceivable within the technical scope of the present utility model disclosed by the present utility model fall within the scope of the present utility model and the disclosure.

Claims (5)

1. A dull and stereotyped gland seal structure of ocean module rig mud filter, its characterized in that: including forming in the recess of filter body (3) top surface, embedded sealing washer (4) and the filter lid in the recess, the filter lid is including hammering union ring (1) and gland (2), and gland (2) pressfitting is in filter body (3) top surface, hammering union ring (1) and filter body (3) threaded connection.

2. The flat gland sealing structure of a marine module drilling rig mud filter according to claim 1, wherein: the inner wall of the upper end of the hammering union ring (1) forms an inner convex ring, and the convex ring is pressed on the gland (2).

3. The flat gland sealing structure of a marine module drilling rig mud filter according to claim 1, wherein: the outer wall of the hammering union ring (1) forms an outer convex ring.

4. The flat gland sealing structure of a marine module drilling rig mud filter according to claim 1, wherein: the sealing ring (4) is a rubber gasket.

5. The flat gland sealing structure of a marine module drilling rig mud filter according to claim 1, wherein: the gland (2) is of a disc-shaped flat plate structure.