CN211718251U

CN211718251U - Filter loss appearance back pressure receiver

Info

Publication number: CN211718251U
Application number: CN202020486276.6U
Authority: CN
Inventors: 李桂海
Original assignee: Qingdao Bairuida Petroleum Machinery Manufacturing Co ltd
Current assignee: Qingdao Bairuida Petroleum Machinery Manufacturing Co ltd
Priority date: 2020-04-07
Filing date: 2020-04-07
Publication date: 2020-10-20
Anticipated expiration: 2030-04-07

Abstract

The utility model discloses a back pressure receiver of a filter loss instrument, which comprises a back pressure receiver shell, wherein the back pressure receiver shell is divided into an upper shell and a lower shell, a first fixing ring is welded on the lower side of the upper shell, a second fixing ring is welded on the upper side of the lower shell, an elastic sealing washer is clamped and fixed between the first fixing ring and the second fixing ring, an air outlet hole is formed in one side of the elastic sealing washer, the lower side of the first fixing ring is fixedly connected with the second fixing ring, the utility model is provided with an upper shell and a lower shell which are fixed by the fixing rings, an elastic sealing gasket provided with an air outlet hole is arranged between the fixing rings, when the drain pipe blockked up, the pine bolt of unscrewing can make the increase of the distance between the solid fixed ring of first solid fixed ring and the solid fixed ring of second, and elasticity seal ring height increases, and the venthole exposes, can exhaust the decompression, has stopped directly to tear the risk of returning the pressure receiver body open.

Description

Filter loss appearance back pressure receiver

Technical Field

The utility model relates to a filtration appearance technical field specifically is a filtration appearance back pressure receiver.

Background

The filter loss instrument is a test instrument for simulating the amount of filter loss of drilling fluid in a deep well under high temperature and high pressure. The high-temperature high-pressure fluid loss instrument is suitable for normal temperature to 300 ℃, the maximum working pressure of a mud chamber can reach several to dozens of megapascals, the main body part of the high-temperature high-pressure fluid loss instrument consists of a heating device, a liquid storage fluid loss tank, a pressurizing device and a receiving device, and the high-temperature high-pressure fluid loss instrument has the characteristics of reliable testing performance and high precision.

The back pressure receiver commonly used at present generally only has a outage, in the use, once the outage blocks up or the circulation is not smooth, will lead to having certain pressure in the back pressure receiver, can only get off the solution problem through dismantling back pressure receiver body is whole, but this internal high pressure of back pressure receiver can bring certain danger when dismantling, though there is the increase fluid-discharge tube at present to carry out supplementary flowing back, or increases the recovery pressure ware that the exhaust hole is used for the decompression, but supplementary fluid-discharge tube still has certain probability to be blockked up with the exhaust hole.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a fluid loss filter back pressure receiver sets up detachable upper casing and lower casing, convenient to detach and pressure release when making the jam to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a fluid loss instrument back pressure receiver, includes back pressure receiver casing, back pressure receiver casing divide into casing and lower casing, it has first solid fixed ring to go up the welding of casing downside, the welding of casing upside has the solid fixed ring of second down, the tight elastic seal circle that is fixed with of clamp between the solid fixed ring of first solid fixed ring and the solid fixed ring of second, the venthole has been seted up to elastic seal circle one side, the solid fixed ring downside fixed connection of first solid fixed ring is in the solid fixed ring of second.

Preferably, a first through hole is formed in the surface of the first fixing ring, a second through hole is formed in the surface of the second fixing ring, and the first through hole and the second through hole are fixedly connected through a bolt.

Preferably, a first annular groove is formed in the lower side of the first fixing ring, a second annular groove is formed in the upper side of the second fixing ring, and the elastic sealing gasket is arranged between the first annular groove and the second annular groove.

Preferably, the edge of the second fixing ring is fixedly connected with a fixing plate, the fixing plate is at least provided with three groups, and the fixing plate is distributed in an annular array relative to the center of the second fixing ring.

Preferably, an air inlet pipe is fixedly communicated with one side of the upper shell, and a pressure gauge is arranged on one side of the lower shell.

Preferably, one side of the lower shell is fixedly communicated with a liquid outlet pipe, and one side of the liquid outlet pipe is provided with a valve.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the upper shell and the lower shell are arranged, the upper shell and the lower shell are fixedly connected through the fixing rings and the bolts, the elastic sealing gaskets are tightly pressed and fixed between the two groups of fixing rings, air outlet holes are formed in the surfaces of the elastic sealing gaskets, when the liquid outlet pipe is blocked, the bolts are unscrewed, the distance between the first fixing ring and the second fixing ring is increased, the elastic sealing gaskets expand, the air outlet holes are exposed, exhaust and decompression can be performed, the risk that the back pressure receiver body is directly dismounted is avoided, when the bolts are screwed, the elastic sealing gaskets are flattened, the air outlet holes are blocked, and the sealing and pressure maintaining effects are still achieved;

2. the upper casing and the lower casing are arranged, and the upper casing and the lower casing are fixedly connected through the fixing rings and the bolts, so that the back pressure receiver casing can be conveniently detached and cleaned.

Drawings

FIG. 1 is a schematic view of the internal structure of the present invention;

FIG. 2 is a schematic view of a portion A of FIG. 1 according to the present invention;

FIG. 3 is a schematic view of the structure of the present invention;

FIG. 4 is a schematic top view of the elastic sealing gasket according to the present invention;

FIG. 5 is a schematic structural view of the present invention when the air outlet is partially opened;

fig. 6 is a schematic structural view of the vent hole of the present invention when partially closed.

In the figure: 1. a back pressure receiver housing; 2. an upper housing; 3. a lower housing; 4. a first retaining ring; 5. a second retaining ring; 6. an elastic sealing gasket; 7. an air outlet; 8. a first through hole; 9. a second through hole; 10. a first annular groove; 11. a second annular groove; 12. a fixing sheet; 13. an air inlet pipe; 14. a pressure gauge; 15. a liquid outlet pipe; 16. and (4) a valve.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-6, the present invention provides a technical solution: the utility model provides a fluid loss instrument back pressure receiver, includes back pressure receiver casing 1, goes up 2 one sides of casing fixed intercommunication and has

intake pipe

13, and 3 one sides of lower casing are provided with manometer 14. A liquid outlet pipe 15 is fixedly communicated with one side of the lower shell 3, and a valve 16 is arranged on one side of the liquid outlet pipe 15.

Back pressure receiver casing 1 divide into casing 2 and casing 3 down, and the welding of 2 downside of last casing has first solid fixed ring 4, and the welding of 3 upsides of casing has the solid fixed ring 5 of second down, and the tight elastic seal ring 6 that is fixed with of clamp between the solid fixed ring 5 of first solid fixed ring 4 and second, and venthole 7 has been seted up to elastic seal ring 6 one side, and the solid fixed ring 5 of first solid fixed ring 4 downside fixed connection in the second.

In order to connect the first fixing ring 4 and the second fixing ring 5, a first through hole 8 is formed in the surface of the first fixing ring 4, a second through hole 9 is formed in the surface of the second fixing ring 5, and the first through hole 8 and the second through hole 9 are fixedly connected through bolts. In order to limit the position of the elastic sealing gasket 6, a first annular groove 10 is formed in the lower side of the first fixing ring 4, a second annular groove 11 is formed in the upper side of the second fixing ring 5, and the elastic sealing gasket 6 is arranged between the first annular groove 10 and the second annular groove 11.

In order to align the first fixing ring 4 and the second fixing ring 5, fixing pieces 12 are fixedly connected to the edge of the second fixing ring 5, at least three groups of fixing pieces 12 are arranged, and the fixing pieces 12 are distributed in an annular array relative to the center of the second fixing ring 5.

The working principle is as follows: set up casing 2 and lower casing 3, go up casing 2 and down between the casing 3 through first solid fixed ring 4, the solid fixed ring of second 5 and bolt fixed connection, compress tightly between two sets of solid fixed rings and be fixed with elastic seal ring 6, venthole 7 has been seted up on elastic seal ring 6 surface, when drain pipe 15 blocks up, the loose bolt can make the distance increase between the solid fixed ring of first solid fixed ring 4 and the solid fixed ring of second 5, elastic seal ring 6 inflation, venthole 7 exposes, can exhaust the decompression, the risk of directly tearing back pressure receiver body down has been stopped, when the bolt is screwed, elastic seal ring 6 is flattened, venthole 7 is flattened and is stopped up, still have sealed pressurize effect.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A fluid loss instrument back pressure receiver, includes back pressure receiver casing (1), its characterized in that: return pressure receiver casing (1) divide into casing (2) and casing (3) down, it has first solid fixed ring (4) to go up casing (2) downside welding, casing (3) upside welding has the solid fixed ring of second (5) down, it is fixed with elastic seal ring (6) to press from both sides between the solid fixed ring of first fixed ring (4) and the solid fixed ring of second (5), venthole (7) have been seted up to elastic seal ring (6) one side, solid fixed ring of first fixed ring (4) downside fixed connection in the solid fixed ring of second (5).

2. The fluid loss instrument back pressure receiver of claim 1, wherein: first through-hole (8) have been seted up on first solid fixed ring (4) surface, second through-hole (9) have been seted up on second solid fixed ring (5) surface, through bolt fixed connection between first through-hole (8) and second through-hole (9).

3. The fluid loss instrument back pressure receiver of claim 1, wherein: first annular groove (10) have been seted up to first solid fixed ring (4) downside, second annular groove (11) have been seted up to second solid fixed ring (5) upside, elastic seal ring (6) set up between first annular groove (10) and second annular groove (11).

4. The fluid loss instrument back pressure receiver of claim 1, wherein: the solid fixed ring of second (5) edge fixedly connected with stationary blade (12), stationary blade (12) are provided with three groups at least, stationary blade (12) are the annular array distribution in solid fixed ring of second (5) center relatively.

5. The fluid loss instrument back pressure receiver of claim 1, wherein: an air inlet pipe (13) is fixedly communicated with one side of the upper shell (2), and a pressure gauge (14) is arranged on one side of the lower shell (3).

6. The fluid loss instrument back pressure receiver of claim 1, wherein: a liquid outlet pipe (15) is fixedly communicated with one side of the lower shell (3), and a valve (16) is arranged on one side of the liquid outlet pipe (15).