CN219472271U - Slurry pump easy to maintain - Google Patents

Abstract

The utility model relates to the field of slurry pumps, in particular to an easy-to-maintain slurry pump, which comprises a cylinder body, wherein the bottom of the cylinder body is provided with a suction inlet, the top of the cylinder body is provided with a mounting port, a discharge port is arranged below the mounting port, and a piston cavity is connected with the part of the cylinder body between the suction inlet and the discharge port; the lower bowl seat assembly comprises a lower bowl seat and a suction valve, wherein the lower bowl seat comprises a lower bowl seat body with a lower through hole and a lower bracket arranged at the top of the lower bowl seat body, the suction valve is arranged on the lower bracket and can seal the lower through hole, and the lower bracket is provided with a through hole communicated with the inner cavity of the cylinder body; the upper bowl seat assembly comprises an upper bowl seat and a discharge valve, wherein the upper bowl seat comprises an upper bowl seat body and an upper bracket, the discharge valve is arranged on the upper bowl seat body, the upper bowl seat body is provided with an upper through hole, and the discharge valve can seal the upper through hole.

Description

Slurry pump easy to maintain

Technical Field

The utility model relates to the field of slurry pumps, in particular to an easy-to-maintain slurry pump.

Background

In drilling operations, it is often necessary to use a slurry pump to convey slurry to a borehole, and the conventional slurry pump is often shown as a slurry pump fluid end assembly disclosed in patent 201520684041.7, and includes a cylinder, a cylinder sleeve connected to the cylinder, a piston, a suction valve and a discharge valve mounted in the cylinder.

Disclosure of Invention

In order to solve the technical problems, the utility model provides the slurry pump which is easy to maintain, and the suction valve and the discharge valve can be conveniently taken out from the cylinder body for maintenance, so that the problems in the prior art are effectively solved.

In order to solve the problems, the utility model provides an easy-to-maintain slurry pump, which comprises a cylinder body, wherein the bottom of the cylinder body is provided with a suction inlet, the top of the cylinder body is provided with a mounting port, a discharge port is arranged below the mounting port, and a piston cavity is connected with the part of the cylinder body between the suction inlet and the discharge port; the lower bowl seat assembly comprises a lower bowl seat arranged at the suction inlet and a suction valve arranged at the lower bowl seat, the lower bowl seat comprises a lower bowl seat body with a lower through hole and a lower bracket arranged at the top of the lower bowl seat body, the suction valve is arranged at the lower bracket and can seal the lower through hole, and the lower bracket is provided with a through hole communicated with the inner cavity of the cylinder body; the upper bowl seat assembly is installed at the installation opening and comprises an upper bowl seat and a discharge valve installed at the upper bowl seat, the upper bowl seat comprises an upper bowl seat body extending into the lower side of the discharge outlet and an upper support fixed at the installation opening, the discharge valve is installed at the upper bowl seat body, the upper bowl seat body is provided with an upper through hole, and the discharge valve can seal the upper through hole.

Further, a lower flange is arranged at the bottom of the cylinder body, and the lower bowl seat is fixedly connected with the lower flange.

Further, a lower fixing ring is arranged at the bottom of the lower support, and the lower bowl seat and the lower flange are clamped and fixed on the lower fixing ring.

Further, the upper section of the lower through hole is arranged into a conical section with a large upper part and a small lower part, the suction valve seals the lower section of the conical section, and the inner surface of the upper section of the conical section is provided with a flow guide rib.

Further, the guide ribs are arc-shaped, and the guide ribs are arranged at intervals along the circumferential direction of the lower through hole.

Further, the lower bracket includes:

the side barrel is connected with the lower bowl seat;

the fixed plate is arranged at the top of the side cylinder;

the connecting ribs are arranged and connected with the fixing plate and the side cylinders, and the connecting ribs are spirally distributed.

Further, a spiral guide plate is arranged at the bottom of the connecting rib.

Further, an upper flange is arranged at the top of the cylinder body, and the upper bracket is fixedly arranged on the upper flange.

Further, an upper fixing ring is arranged at the top of the upper bowl seat body, and the upper flange and the upper bracket are clamped and fixed on the upper fixing ring.

Further, a sealing ring is arranged on the outer surface of the upper bowl seat body.

The utility model has the beneficial effects that the utility model provides the slurry pump which is easy to maintain, and the suction valve and the discharge valve can be conveniently taken out from the cylinder body for maintenance, so that the problems in the prior art are effectively solved.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model and do not constitute a limitation on the utility model. In the drawings:

fig. 1 is a schematic structural diagram of an embodiment of the present utility model.

Fig. 2 is a schematic cross-sectional view of the embodiment of fig. 1.

Fig. 3 is a schematic top view of the lower bowl base body in the embodiment shown in fig. 1.

Wherein: 1. a cylinder; 101. a suction inlet; 102. a mounting port; 103. a discharge port; 104. a piston chamber; 105. a lower flange; 2. a lower bowl seat; 201. a lower bowl seat body; 202. a lower bracket; 2021. a side cylinder; 2022. a fixing plate; 2023. a connecting rib; 3. a suction valve; 4. a lower through hole; 5. a bowl seat is arranged; 501. an upper bowl seat body; 502. an upper bracket; 6. a discharge valve; 7. an upper through hole; 8. a lower fixing ring; 9. a conical section; 10. a flow guiding rib; 11. a deflector; 12. an upper flange; 13. an upper fixing ring; 14. and (3) sealing rings.

Detailed Description

In order to more clearly illustrate the general inventive concept, reference will be made in the following detailed description, by way of example, to the accompanying drawings.

It should be noted that in the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model, however, the present utility model may be practiced in other ways than as described herein, and therefore the scope of the present utility model is not limited by the specific embodiments disclosed below.

In addition, in the description of the present utility model, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on 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.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. However, it is noted that a direct connection indicates that two bodies connected together do not form a connection relationship by an excessive structure, but are connected to form a whole by a connection structure. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present utility model, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

In the utility model, as shown in fig. 1-3, there is provided an easy-to-maintain slurry pump, comprising a cylinder 1, the bottom of the cylinder is provided with a suction inlet 101, the top is provided with a mounting port 102, a discharge outlet 103 is arranged below the mounting port 102, and a piston cavity 104 is connected with the part of the cylinder 1 between the suction inlet 101 and the discharge outlet 103; the lower bowl seat assembly comprises a lower bowl seat 2 arranged at the suction inlet 101 and a suction valve 3 arranged at the lower bowl seat 2, wherein the lower bowl seat 2 comprises a lower bowl seat body 201 with a lower through hole 4 and a lower bracket 202 arranged at the top of the lower bowl seat body 201, the suction valve 3 is arranged at the lower bracket 202 and can seal the lower through hole 4, and the lower bracket 202 is provided with a through hole communicated with the inner cavity of the cylinder body 1; the upper bowl seat assembly is installed at the installation opening 102 and comprises an upper bowl seat 5 and a discharge valve 6 installed at the upper bowl seat 5, the upper bowl seat 5 comprises an upper bowl seat body 501 extending into the lower side of the discharge outlet 103 and an upper bracket 502 fixed at the installation opening 102, the discharge valve 6 is installed at the upper bowl seat body 501, the upper bowl seat body 501 is provided with an upper through hole 7, and the discharge valve 6 can seal the upper through hole 7.

When the slurry pump is used, the piston arranged in the piston cavity 104 moves back and forth, so that negative pressure is generated in the cylinder body 1 when the piston in the piston cavity 104 moves away from the cylinder body 1, the suction valve 3 is sucked up from the lower through hole 4, the lower through hole 4 is opened, slurry enters the cylinder body from the lower through hole 4, at the moment, the discharge valve 6 seals the upper through hole 7, when the piston in the piston cavity 104 moves towards the direction close to the cylinder body 1, the pressure in the cylinder body 1 is increased, the suction valve 3 is pressed to seal the lower through hole 4, the discharge valve 6 is pushed away by high-pressure slurry in the cylinder body 1 to open the upper through hole 7, and the slurry in the cylinder body 1 is discharged. When the suction valve 3 and the discharge valve 6 in the cylinder body 1 need to be maintained, since the lower bowl seat 2 is installed at the bottom of the cylinder body 1, the upper bracket 502 is fixed at the installation opening 102, the lower bowl seat 2 can be detached from the bottom of the cylinder body 1, the upper bracket 502 can be detached from the installation opening 102, and then maintenance work such as overhauling, replacement and the like can be performed on the suction valve 3 and the discharge valve 6 outside the cylinder body 1 respectively, so that the operation is easier. Moreover, the cylinder 1 of the present application is also easier to machine than in the manner in which the valve seat is machined in the cylinder 1 in the reference.

It should be noted that the improvement of the present utility model is to improve the structure of the cylinder 1 of the slurry pump, and other structures of the slurry pump are not limited, and a person skilled in the art may flexibly select other structures in implementation, for example, a piston mechanism at the piston cavity 104 may select a reciprocating piston in the comparison document, and the reciprocating piston may select an existing cam connecting rod driving structure, which is not described herein.

In the embodiment shown in fig. 1, more specifically, a lower flange 105 is disposed at the bottom of the cylinder 1, and the lower bowl 2 is fixedly connected to the lower flange 105. As shown in fig. 2, the bottom of the lower bowl base 2 is plate-shaped and fixed to the lower flange 105 by bolts.

In further detail, in the embodiment shown in fig. 1, a lower fixing ring 8 is disposed at the bottom of the lower bracket 202, and the lower bowl seat 2 and the lower flange 105 clamp and fix the lower fixing ring 8. The lower bowl seat 2 and the lower flange 105 are used for clamping and fixing the lower fixing ring 8, so that the separation between the lower bowl seat body and the lower bracket 202 can be completed simultaneously when the lower bowl seat 2 is detached from the cylinder body 1, and the suction valve 3 can be exposed at the moment, so that the suction valve 3 can be conveniently disassembled, assembled and maintained. As shown in fig. 2, a notch is arranged at the bottom of the cylinder body 1 at the position of the lower fixing ring 8, and the lower bowl seat 2 clamps the lower fixing ring 8 at the notch position.

In an alternative embodiment, other forms of connection between the lower bracket 202 and the lower bowl base 2 may be used, for example, a bolt fixing manner is adopted between the lower bowl base 2 and the lower bracket 202, and specifically, the lower fixing ring 8 shown in fig. 2 is directly fastened to the lower bowl base 2 by a bolt.

In the embodiment shown in fig. 1, more specifically, the upper section of the lower through hole 4 is provided with a conical section 9 with a large upper part and a small lower part, the suction valve 3 seals the lower section of the conical section 9, and the inner surface of the upper section of the conical section 9 is provided with a flow guiding rib 10. As shown in the figure, by arranging the guide rib 10, the guide rib 10 has a transverse guide structure, so that when the suction valve 3 is opened to suck mud, the mud can transversely flow under the guidance of the guide rib 10, the flushing effect of the mud in the lower bracket 202 is increased, and the accumulation of mud particles in the lower bracket 202 can be reduced to a certain extent.

In a preferred embodiment, further specifically, the guide ribs 10 are arc-shaped, and a plurality of guide ribs 10 are arranged at intervals along the circumference of the lower through hole 4.

In the embodiment shown in fig. 1, for the structure of the lower bracket 202, further specifically, the lower bracket 202 includes:

a side tube 2021 connected to the lower bowl base 2;

a fixing plate 2022 provided on the top of the side tube 2021;

a plurality of connecting ribs 2023 are provided to connect the fixing plate 2022 and the side tube 2021, and the connecting ribs 2023 are spirally distributed. As shown in fig. 2, the spaces between adjacent connecting ribs 2023 allow the slurry to pass therethrough, and by arranging the connecting ribs 2023 in a spiral, the stirring effect on the flowing slurry is increased, further preventing the slurry from depositing in the lower bracket 202. In an implementation similar to the example shown in fig. 1, the connecting rib 2023 may be modified to be a straight rib.

In the embodiment shown in fig. 1, it is further optimized that the bottom of the connecting rib 2023 is provided with a spiral deflector 11. As shown in fig. 2, the baffle 11 may be a plastic baffle, which can be assembled conveniently and increase the stirring effect.

In the embodiment shown in fig. 1, more specifically, an upper flange 12 is disposed at the top of the cylinder 1, and the upper bracket 502 is mounted and fixed on the upper flange 12. As shown in fig. 2, the upper bracket 502 is fixed to the upper flange 12 by bolts, and the upper bracket 502 can be detached from the upper flange 12 when the discharge valve 6 needs to be removed.

In further detail, for the embodiment shown in fig. 1, an upper fixing ring 13 is disposed on the top of the upper bowl base body 501, and the upper flange 12 and the upper bracket 502 clamp and fix the upper fixing ring 13. Through upper bracket 502 and upper flange 12 centre gripping fixed upper fixed ring 13, can simplify the fixed connection structure between upper bracket 502 and the upper bowl seat body 501, when upper bracket 502 is torn down by cylinder body 1, can accomplish the separation between upper bowl seat body 501 and the upper bracket 502 simultaneously, can expose discharge valve 6 this moment, be convenient for carry out dismouting maintenance to discharge valve 6. As shown in fig. 2, a notch is formed in the top of the cylinder 1 at the position of the lower fixing ring 8, and the upper bracket 502 clamps the upper fixing ring 13 at the notch position.

In an alternative embodiment, other connection modes between the upper bracket 502 and the upper bowl base body 501 may be used, for example, a bolt fixing mode is adopted between the upper bowl base 5 and the upper bracket 502, and specifically, the upper fixing ring 13 shown in fig. 2 is directly fastened on the upper bowl base 5 through bolts.

In further detail, for the embodiment shown in fig. 1, a sealing ring 14 is disposed on the outer surface of the upper bowl base body 501. As shown in the figure, by providing the seal ring 14, leakage between the upper bowl base body 501 and the inner wall of the cylinder 1 can be prevented.

It should be noted that the two types of cylinders 1 are illustrated in a single-cylinder structure, which is not a limitation of the embodiment of the present utility model, and in an alternative embodiment, a multi-cylinder structure may be used.

For the illustrated embodiment, the suction valve 3 and the discharge valve 6 are of the same structural form, and specifically comprise a valve seat, a spring and a closed rubber sleeve sleeved outside the spring. This is not a limitation of the structure of the suction valve 3 and the discharge valve 6 of the present utility model, and other existing valve forms may be used in alternative embodiments.

In this specification, each embodiment is described in a progressive manner, and identical and similar parts of each embodiment are all referred to each other, and each embodiment mainly describes differences from other embodiments. In particular, for system embodiments, since they are substantially similar to method embodiments, the description is relatively simple, as relevant to see a section of the description of method embodiments.

The foregoing is merely exemplary of the present application and is not intended to limit the present application. Various modifications and changes may be made to the present application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc. which are within the spirit and principles of the present application are intended to be included within the scope of the claims of the present application.

Claims (10)

1. A slurry pump for easy maintenance, comprising:

the cylinder body is provided with a suction inlet at the bottom and a mounting port at the top, a discharge outlet is arranged below the mounting port, and a piston cavity is connected with the cylinder body at the part between the suction inlet and the discharge outlet;

the lower bowl seat assembly comprises a lower bowl seat arranged at the suction inlet and a suction valve arranged at the lower bowl seat, the lower bowl seat comprises a lower bowl seat body with a lower through hole and a lower bracket arranged at the top of the lower bowl seat body, the suction valve is arranged at the lower bracket and can seal the lower through hole, and the lower bracket is provided with a through hole communicated with the inner cavity of the cylinder body;

the upper bowl seat assembly is installed at the installation opening and comprises an upper bowl seat and a discharge valve installed at the upper bowl seat, the upper bowl seat comprises an upper bowl seat body extending into the lower side of the discharge outlet and an upper support fixed at the installation opening, the discharge valve is installed at the upper bowl seat body, the upper bowl seat body is provided with an upper through hole, and the discharge valve can seal the upper through hole.

2. The easy-to-maintain mud pump as set forth in claim 1, wherein the bottom of the cylinder is provided with a lower flange, and the lower bowl seat is fixedly connected to the lower flange.

3. The slurry pump according to claim 2, wherein a lower fixing ring is provided at the bottom of the lower bracket, and the lower bowl seat and the lower flange clamp and fix the lower fixing ring.

4. The slurry pump according to claim 1, wherein the upper section of the lower through hole is formed into a tapered section with a large upper part and a small lower part, the suction valve closes the lower section of the tapered section, and the inner surface of the upper section of the tapered section is provided with guide ribs.

5. The easy maintenance slurry pump of claim 4 wherein said ribs are arcuate and a plurality of ribs are circumferentially spaced about said lower bore.

6. The easy maintenance mud pump as set forth in claim 1, wherein said lower bracket comprises:

the side barrel is connected with the lower bowl seat;

the fixed plate is arranged at the top of the side cylinder;

the connecting ribs are arranged and connected with the fixing plate and the side cylinders, and the connecting ribs are spirally distributed.

7. The easy maintenance slurry pump of claim 6 wherein said ribs have a spiral baffle at the bottom.

8. The easy maintenance slurry pump of claim 1 wherein the top of the cylinder is provided with an upper flange, and the upper bracket is mounted and secured to the upper flange.

9. The easy maintenance slurry pump of claim 8 wherein an upper retaining ring is provided on top of said upper bowl base body, said upper flange and said upper bracket clamping said upper retaining ring.

10. The easy maintenance slurry pump of claim 8 wherein the outer surface of the upper bowl base body is provided with a sealing ring.