Detachable centrifugal machine slurry distribution disc and centrifugal machine applying same

Abstract

The utility model provides a dismountable centrifugal machine mud distribution disc and centrifugal machine applying the same, the distribution disc comprises a base and a tray, the tray is made of ceramic material, the base comprises a first base plate and a first side wall, the first base plate is round, the first side wall is cylindrical, the tray comprises a second base plate and a second side wall, the second base plate is round, and the second side wall is cylindrical. The second side wall is cylindrical, a conical protrusion is arranged in the middle of the second base plate, a V-shaped annular groove is formed in the outer surface of the first side wall, and the tray is bonded in the base. The mud distribution plate is divided into two parts, the center of the tray base plate is in the shape of the blunt cone, and the joint of the outer ring and the side wall is the annular cambered surface, so that the advancing resistance of mud can be effectively reduced, and drilling fluid is prevented from being deposited. The mud distribution disc and the propeller are not integrated, when the distribution disc is damaged, only the damaged distribution disc needs to be taken out, the whole propeller does not need to be replaced, replacement and maintenance are convenient, and consumed time is short.

Description

Technical Field

[0001] The utility model relates to the technical field of petroleum equipment, in particular to a detachable centrifuge mud distribution plate and a centrifuge using the same. Background Art

[0002] At present, the internal distribution plate of the centrifuge is mostly made of metal flat plate structure, and is welded to the propeller as a whole. When the mud is continuously fed from the feed pipe, it first enters the propeller from the feed port, and then enters the drum through the flat distribution plate. The drum rotates at high speed, and under the action of centrifugal force that is hundreds or even thousands of times greater than gravity, an annular liquid pool is formed in the drum. In this process, there are at least the following two problems: First, once the metal distribution plate welded to the propeller is damaged, the entire propeller needs to be replaced, which will result in long downtime and large losses; second, the flat structure of the distribution plate is not conducive to the diversion of mud, and the mud will accumulate in the angle between the distribution plate and the propeller. Utility Model Content

[0003] Therefore, one object of the present invention is to provide a detachable centrifuge mud distribution plate and a centrifuge using the same, so as to solve the problems mentioned in the background technology and overcome the deficiencies in the prior art.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] A detachable centrifuge mud distribution plate includes a base and a tray, the tray is made of ceramic material, the base includes a first chassis and a first side wall, the first chassis is circular, the first side wall is cylindrical, the tray includes a second chassis and a second side wall, the second chassis is circular, the second side wall is cylindrical, a conical protrusion is provided in the middle of the second chassis, the outer surface of the first side wall is provided with a V-shaped annular groove, and the tray is bonded to the base.

[0006] Furthermore, one side of the first chassis is connected to the first side wall, and the first chassis and the first side wall are integrated.

[0007] Furthermore, one side of the second chassis is connected to the second side wall, and the second chassis and the second side wall are integrated.

[0008] Furthermore, the V-shaped annular groove surrounds the outer surface of the first side wall.

[0009] Furthermore, a connecting hole is provided on the other side of the first chassis, and a thread is provided on the connecting hole.

[0010] Furthermore, the connection between the first chassis and the inner surface of the first side wall is a right angle.

[0011] Furthermore, a connection point between the second chassis and the inner surface of the second side wall is an arc-shaped guide angle.

[0012] Furthermore, the outer diameter of the second side wall is equal to the inner diameter of the first side wall.

[0013] Furthermore, the base is made of metal.

[0014] A centrifuge is also provided, comprising the above-mentioned detachable centrifuge mud distribution plate, and also comprising a propeller and a plurality of fixing screws, wherein the propeller is provided with a plurality of fixing screw holes, the distribution plate is arranged inside the propeller, the first side wall of the distribution plate is clearance-matched with the inner surface of the propeller, the fixing screw is screwed into the fixing screw hole so that the end of the fixing screw is tightly pressed in the V-shaped ring groove of the first side wall.

[0015] Therefore, the utility model has the following beneficial effects:

[0016] The utility model discloses a detachable centrifuge mud distribution plate and a centrifuge using the same. The mud distribution plate is divided into two parts. The tray bottom plate is in the shape of a blunt cone in the center and the connection between the outer ring and the side wall is an annular arc surface, which can effectively reduce the travel resistance of the mud and prevent the drilling fluid from depositing.

[0017] The tray is made of ceramic, which is harder, more wear-resistant and corrosion-resistant than metal.

[0018] The mud distribution plate is not integrated with the propeller, and is connected to the propeller through screws and clearance fit. When the distribution plate is damaged, you only need to remove the set screws first, then extend the lead screw from one end into the propeller, screw it into the connecting hole of the first chassis, and then gently pull it out to remove the damaged distribution plate. There is no need to replace the entire propeller. Replacement and maintenance are convenient and time-saving.

[0019] Additional aspects and advantages of the present invention will be given in part in the following description and in part will become apparent from the following description or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0021] Figure 1 It is a schematic diagram of the overall structure of the mud distribution plate of the utility model;

[0022] Figure 2 This is a schematic diagram of the overall structure of the mud distribution plate of the utility model from another perspective;

[0023] Figure 3It is a front view of the mud distribution plate of the utility model;

[0024] Figure 4 It is a side view of the mud distribution plate of the utility model;

[0025] Figure 5 It is a top view of the mud distribution plate of the utility model;

[0026] Figure 6 It is a structural schematic diagram of the base of the utility model;

[0027] Figure 7 It is a structural schematic diagram of the tray of the utility model;

[0028] Figure 8 yes Figure 3 AA section view shown;

[0029] Fig. 9 It is a cross-sectional view of the base of the utility model;

[0030] Fig.10 It is a cross-sectional view of the tray of the utility model;

[0031] Fig.11 It is a partial structural sectional view of a centrifuge of the utility model.

[0032] In the figure: 1. base; 2. tray; 3. first chassis; 4. first side wall; 5. second chassis; 6. second side wall; 7. concave surface; 8. conical protrusion; 9. V-shaped ring groove; 10. connecting hole; 11. drum; 12. propeller; 13. set screw; 14. slurry discharge hole; 15. feed pipe. DETAILED DESCRIPTION

[0033] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0034] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0035] like Figure 1-Figure 10As shown, a detachable centrifuge mud distribution plate includes a base 1 and a tray 2, the tray 2 is made of ceramic material, the base 1 includes a first chassis 3 and a first side wall 4, the first chassis 3 is circular, the first side wall 4 is cylindrical, the tray 2 includes a second chassis 5 and a second side wall 6, the second chassis 5 is circular, the second side wall 6 is cylindrical, a conical protrusion 8 is provided in the middle of the second chassis 5, and a V-shaped annular groove 9 is provided on the outer surface of the first side wall 4, and the tray 2 is bonded to the base 1.

[0036] The utility model discloses a detachable centrifuge mud distribution plate, which is divided into two parts, namely a base 1 and a tray 2. The tray 2 has a bottom plate with a blunt cone at the center and an annular arc surface at the connection between the outer ring and the side wall, which can effectively reduce the travel resistance of the mud and prevent the drilling fluid from depositing.

[0037] like Figure 6 As shown, one side of the first chassis 3 is connected to the first side wall 4, and the first chassis 3 and the first side wall 4 are integrated.

[0038] As an implementation manner, the first chassis 3 and the first side wall 4 of the base 1 may be integrally formed by metal powder injection molding.

[0039] As an implementation manner, the first chassis 3 and the first side wall 4 of the base 1 may also be fixedly connected by welding.

[0040] like Figure 6 and Fig. 9 As shown, the first chassis 3 and the first side wall 4 are connected to form the base 1, the first chassis 3 serves as the bottom of the base 1, and the first side wall 4 is arranged around the first chassis 3 to form an open cavity that can accommodate the tray 2. The inner surface of the first chassis 3 is a smooth plane, and the inner surface of the first side wall 4 is a smooth cylindrical surface.

[0041] like Figure 7 As shown, one side of the second chassis 5 is connected to the second side wall 6, and the second chassis 5 and the second side wall 6 are integrated.

[0042] As an embodiment, the second bottom plate 5 and the second side wall 6 of the tray 2 may be integrally formed by ceramic injection molding.

[0043] As an embodiment, the second bottom plate 5 and the second side wall 6 of the tray 2 may be integrally formed by ceramic compression molding.

[0044] like Figure 7 and Fig.10As shown, the second chassis 5 and the second side wall 6 are connected to form the tray 2, the second chassis 5 serves as the bottom of the tray 2, the second side wall 6 is arranged around the second chassis 5, a conical protrusion 8 is provided at the center position of the second chassis 5, a cone surface is formed at the center position of the surface of the second chassis 5, and the connection between the second chassis 5 and the second side wall 6 is designed to be a smooth concave surface 7.

[0045] like Figure 4 , Figure 5 , Figure 8 , Fig. 9 As shown, the V-shaped annular groove 9 surrounds the outer surface of the first side wall 4. The V-shaped annular groove 9 is used to cooperate with the set screw 13 to achieve fixation with the propeller 12.

[0046] like Figure 2 , Figure 4 , Figure 5 , Figure 8 and Fig. 9 As shown, a connecting hole 10 is provided on the other side of the first chassis 3, and a thread is provided on the connecting hole 10.

[0047] The connecting hole 10 is used to be connected and screwed with the lead screw, and the unfixed distribution plate can be taken out by pulling the lead screw.

[0048] As an implementation mode, the thread is an internal thread, which is provided on the inner surface of the connecting hole 10 and is used for being connected and screwed with a lead screw provided with an external thread.

[0049] As an implementation mode, the thread is an external thread, which is provided on the outer surface of the connecting hole 10 and is used for being connected and screwed with a lead screw provided with an internal thread.

[0050] like Fig. 9 As shown, the connection between the first chassis 3 and the inner surface of the first side wall 4 is a right angle.

[0051] like Figure 8 and Fig.10 As shown, the connection between the second chassis 5 and the inner surface of the second side wall 6 is an arc-shaped guide angle.

[0052] More specifically, the connection between the second chassis 5 and the inner surface of the second side wall 6 is an arc angle, or an arc angle, or a circular arc angle, or a fillet, or an inner chamfer, or a cambered angle, that is, the cross-section of the connection between the second chassis 5 and the inner surface of the second side wall 6 is not a right angle like the cross-section of the connection between the first chassis 3 and the inner surface of the first side wall 4, but a smooth arc, which can effectively reduce the travel resistance of the mud and prevent the deposition of drilling fluid.

[0053] As an implementation manner, the outer diameter of the second side wall 6 is equal to the inner diameter of the first side wall 4 .

[0054] As an implementation manner, the outer diameter of the second side wall 6 is smaller than or slightly smaller than the inner diameter of the first side wall 4 .

[0055] The tray 2 is bonded to the base 1 . Specifically, the tray 2 and the base 1 can be bonded together by any adhesive such as epoxy adhesive, acrylic adhesive, silicone adhesive, polyurethane adhesive, acrylic adhesive, etc.

[0056] Furthermore, the base 1 is made of metal.

[0057] Specifically, the base 1 can be made of any one of stainless steel, tungsten-cobalt alloy, tungsten-titanium alloy, tungsten-tantalum alloy and the like.

[0058] As an implementation method, the outer dimensions of the base 1 and the tray 2 can be obtained by machining.

[0059] The utility model adopts a detachable centrifuge distribution plate, which is divided into two parts, a metal base 1 and a ceramic tray 2, which are bonded together with an adhesive. The ceramic tray 2 is designed with a blunt cone in the center and an annular arc surface on the outer ring, which can effectively reduce the travel resistance of the mud and prevent the drilling fluid from depositing. In addition, ceramics are harder than metals, and are wear-resistant and corrosion-resistant.

[0060] The utility model also provides a centrifuge, including the above-mentioned detachable centrifuge mud distribution plate, and also includes a propeller 12 and a plurality of fixing screws 13. The propeller 12 is provided with a plurality of fixing screw holes. The distribution plate is arranged inside the propeller 12. The first side wall 4 of the distribution plate is clearance-matched with the inner surface of the propeller 12. The fixing screw 13 is screwed into the fixing screw hole so that the end of the fixing screw 13 is tightly pressed in the V-shaped ring groove 9 of the first side wall 4.

[0061] As an implementation manner, the number of the set screws 13 and the set screw holes is specifically four.

[0062] As an implementation manner, the number of the set screws 13 and the set screw holes is specifically five.

[0063] As an implementation manner, the number of the set screws 13 and the set screw holes is specifically 6.

[0064] That is to say, the present invention does not impose any specific restrictions on the number of set screws 13 and set screw holes. The number of set screws 13 and set screw holes can be selectively set according to actual needs. Any number of set screws 13 and set screw holes that can achieve the screwing of the set screws 13 and the set screw holes so that the end of the set screws 13 is tightly pressed in the V-shaped ring groove 9 of the first side wall 4, thereby achieving a good fixing effect on the distribution plate and the pusher 12, are within the protection scope of the present invention.

[0065] One side of the metal base 1 is bonded to the ceramic tray 2, and a threaded hole (i.e., a connecting hole 10) is provided on the flat protrusion on the other side. There is a clearance fit between the metal base 1 and the propeller 12, and the four set screws 13 are screwed into the set screw holes on the propeller 12, and the ends are tightly pressed into the conical annular groove of the metal base 1 to complete the limit. When the distribution plate is damaged, you only need to remove the four set screws 13 first, and then extend the lead screw from one end into the propeller 12 and screw it into the threaded hole of the bottom support protrusion. After screwing, you can remove the damaged distribution plate by gently pulling it, without having to replace the entire propeller 12. If there is an abnormal sound inside the propeller 12, you can also remove the distribution plate for inspection or cleaning.

[0066] like Fig.11 As shown, when the centrifuge of the utility model is working, the slurry enters from the feed pipe 15, is dispersed through the blunt conical protrusion of the ceramic tray 2, and then rises through the annular arc surface and is discharged from the slurry discharge hole 14, forming an annular liquid pool on the inner wall of the drum 11.

[0067] As for other structures of the centrifuge that are not related to the mud distribution plate, they belong to the existing mature technology and the present utility model will not elaborate on them in detail.

[0068] The utility model adopts a detachable mud distribution plate. The ceramic material is harder and more wear-resistant than metal. The special shape of the ceramic tray 2 can also better guide the mud.

[0069] When the distribution plate is damaged, it is not necessary to replace the entire propeller 12, but only the distribution plate needs to be replaced, which greatly increases the service life of the propeller 12.

[0070] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0071] It is not difficult for those skilled in the art to understand that the utility model includes any combination of the utility model content and the specific implementation method part of the above specification and the various parts shown in the drawings. Due to the limited space and to make the specification concise, the various schemes composed of these combinations are not described one by one. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

[0072] Although the embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and cannot be understood as limiting the present invention. Those skilled in the art can change, modify, replace and modify the above embodiments within the scope of the present invention without departing from the principles and purpose of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A detachable centrifuge mud distribution plate, characterized in that: It includes a base and a tray, the tray is made of ceramic material, the base includes a first chassis and a first side wall, the first chassis is circular, the first side wall is cylindrical, the tray includes a second chassis and a second side wall, the second chassis is circular, the second side wall is cylindrical, a conical protrusion is provided in the middle of the second chassis, the outer surface of the first side wall is provided with a V-shaped annular groove, and the tray is bonded to the base.

2. A detachable centrifuge mud distribution plate according to claim 1, characterized in that: One side of the first chassis is connected to the first side wall, and the first chassis and the first side wall are integrated.

3. A detachable centrifuge mud distribution plate according to claim 1, characterized in that: One side of the second chassis is connected to the second side wall, and the second chassis and the second side wall are integrated.

4. A detachable centrifuge mud distribution plate according to claim 1, characterized in that: The V-shaped annular groove surrounds the outer surface of the first side wall.

5. A detachable centrifuge mud distribution plate according to claim 1 or 2, characterized in that: A connecting hole is provided on the other side of the first chassis, and a thread is provided on the connecting hole.

6. A detachable centrifuge mud distribution plate according to claim 2, characterized in that: The first bottom plate and the inner surface of the first side wall are connected at a right angle.

7. A detachable centrifuge mud distribution plate according to claim 3, characterized in that: The connection between the second bottom plate and the inner surface of the second side wall is an arc-shaped guide angle.

8. A detachable centrifuge mud distribution plate according to claim 1, characterized in that: The outer diameter of the second side wall is equal to the inner diameter of the first side wall.

9. A detachable centrifuge mud distribution plate according to claim 1, characterized in that: The base is made of metal.

10. A centrifuge, comprising a detachable centrifuge mud distribution plate according to any one of claims 1 to 9, characterized in that: It also includes a pusher and a plurality of fixing screws, wherein the pusher is provided with a plurality of fixing screw holes, the distribution plate is arranged inside the pusher, the first side wall of the distribution plate is clearance-matched with the inner surface of the pusher, and the fixing screws are screwed into the fixing screw holes so that the end of the fixing screws is tightly pressed in the V-shaped ring groove of the first side wall.

Images