Petroleum drilling and production delivery pump

Abstract

The utility model relates to the technical field of petroleum delivery, and discloses a petroleum drilling delivery pump which comprises a base, a bearing seat is mounted at the top end of the base, a servo motor is mounted at the top end of the base on one side of the bearing seat, a protective cover is arranged on the other side of the bearing seat, and one end of the protective cover is connected with a delivery cover through a flange plate. The sealing filler is matched with the protective cover, so that a connecting gap between the rotating shaft and the conveying cover is conveniently plugged, crude oil is prevented from leaking, the limiting guide assembly and the thrust adjusting assembly are matched, the movable lantern ring is screwed forwards, the movable lantern ring pushes the abutting plate to move forwards, and the sealing effect is achieved. Therefore, the extrusion sleeve plate axially extrudes the sealing filler, filling of a connecting gap of the sealing filler is promoted, the radial deformation effect of the sealing filler is improved, the sealing effect of the sealing filler is improved, and due to the fact that the extrusion force can be adjusted, the sealing filler can be prevented from loosening after being used for a long time.

Description

Technical Field

[0001] The utility model relates to the technical field of oil transportation, in particular to an oil drilling and production transportation pump. Background Art

[0002] Special equipment for oil drilling and production refers to equipment used for exploration and exploitation of resources such as oil and natural gas. When drilling and producing oil, corresponding delivery pumps are required to operate. The transmission capacity of the delivery pumps is used to seal and transmit the crude oil under the oil well, which is then convenient for subsequent transportation and processing.

[0003] Chinese patent authorization announcement number CN214196783U discloses a centrifugal pump for oil transportation, including a pump body, a support plate fixedly connected to the lower end of the pump body, and a rotating motor fixedly connected to the left side of the upper end of the support plate, a plurality of spring damping rods fixedly connected to the lower end of the support plate, and the lower end of the support plate is fixedly connected to a bottom plate through the spring damping rods, and a rotating shaft is rotatably connected to the right end of the rotating motor to prevent oil from flowing back in the oil outlet pipe, to prevent oil from falling and hitting the impeller when flowing back, to prevent the impeller from reversing, thereby preventing the impeller from loosening due to reversal, and ensuring the service life of the centrifugal pump. The above-mentioned prior art solution has the following shortcomings: during the use of the oil delivery pump, in order to prevent the leakage of crude oil, a sealing packing is generally arranged at the connection between the rotating shaft and the delivery cover, and is wrapped with a shell to protect it to prevent the leakage of crude oil. Since the crude oil has a certain viscosity, its viscosity during transportation is relatively large, and its impact on the shell gap is greater. With long-term delivery use, the tightness between the sealing packing and the delivery cover is reduced, and the existing delivery pump is not easy to extrude and adjust the sealing packing, so it is easy to affect the long-term sealing of the packing. An improvement scheme is now proposed. Utility Model Content

[0004] The utility model aims to provide an oil drilling and production delivery pump to solve the problem that the existing oil drilling and production delivery pump is not easy to extrude and adjust the sealing packing in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an oil drilling and production delivery pump, comprising a base, a bearing seat is installed at the top of the base, and a servo motor is installed at the top of the base on one side of the bearing seat, a protective cover is arranged on the other side of the bearing seat, and one end of the protective cover is connected to the delivery cover through a flange, a rotating shaft is installed at one end of the bearing seat, and one end of the rotating shaft passes through the bearing seat and the interior of the protective cover and extends to the interior of the delivery cover, impellers are evenly arranged on the outside of one end of the rotating shaft, an oil inlet pipe is installed at the bottom end of one side of the delivery cover, an oil outlet pipe is installed at the top of the delivery cover, and a side of the protective cover close to the delivery cover is arranged inside the protective cover A rotating shaft is arranged, and an extrusion sleeve is installed inside the protective cover on the side of the rotating shaft away from the conveying cover. An adjusting mechanism is connected between one side of the extrusion sleeve and the protective cover, and the extrusion force adjusting mechanism includes a thrust adjustment component and a limit guide component. The thrust adjustment component is sleeved on the outside of the protective cover, and the limit guide component is arranged on the side of the extrusion sleeve away from the rotating shaft, and the limit guide components are distributed in annular shapes with equal intervals on the extrusion sleeve. One end of the limit guide component extends to the outside of the protective cover and abuts against one side of the thrust adjustment component. The adjusting mechanism is used to generate axial thrust on the extrusion sleeve to extrude the sealing filler and improve the sealing effect.

[0006] Preferably, the limiting guide assembly includes guide holes evenly opened on the outside of the protective cover, and the guide holes are distributed in an annular shape with equal intervals on the protective cover, the inside of the guide holes are penetrated by a pressure plate, and the bottom end of the pressure plate is installed with a connecting plate, one side of the connecting plate is connected to the top end of one side of the extrusion sleeve, and a reinforcing block is connected between the connecting plate and the pressure plate.

[0007] Preferably, the length of the guide hole is smaller than the thickness of the extruded sleeve, and the connecting plate is vertically distributed therewith.

[0008] Preferably, the thrust adjustment assembly includes a movable collar sleeved on the outside of the protective cover, and a pressure ring is installed on a side of the movable collar close to the pressure plate, and one side of the pressure ring is against one side of the pressure plate.

[0009] Preferably, the movable collar is located on a side of the limiting guide assembly away from the rotating shaft, and the movable collar is threadedly connected to the protective cover.

[0010] Preferably, a guide pipe is provided inside the oil outlet pipe at one end close to the conveying cover, and a guide channel is opened inside the guide pipe. A sealing box is welded to the outside of the oil outlet pipe on one side of the guide pipe, and an automatic opening and closing mechanism is provided inside the sealing box.

[0011] Preferably, the automatic opening and closing mechanism includes a guide rod running through one end of the automatic opening and closing mechanism away from the oil outlet pipe, and a locking ball is installed at one end of the guide rod, and a blocking block is installed at the other end of the guide rod, and one end of the blocking block extends to the interior of the guide channel to block the guide pipe, and a spring is provided on the side of the blocking block away from the guide channel, and one end of the spring is connected to the inner wall of the sealing box.

[0012] Preferably, the bottom end surface of the blocking block is a slope, and the slope slopes downward from left to right, and limiting guide blocks are provided on one side of the two ends of the blocking block close to the guide rod, and one side of the limiting guide blocks is against the inner wall of the sealing box.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] (1) The sealing packing cooperates with the protective cover to seal the connection gap between the rotating shaft and the conveying cover to prevent the leakage of crude oil. The limit guide component and the thrust adjustment component cooperate to screw the movable ring forward to push the pressure plate forward, so that the extrusion sleeve exerts an axial extrusion effect on the sealing packing, promotes the filling of the connection gap between the sealing packing, and improves its radial deformation effect, thereby improving its sealing effect. Since the extrusion force can be adjusted, it is helpful to avoid the loosening of the sealing packing under long-term use, thereby ensuring the service life of the conveying pump;

[0015] (2) Due to the special structure of the sealing block, when the impeller rotates, the crude oil will generate an upward thrust, causing the oil to flow into the inside of the oil outlet pipe, thereby pushing the sealing block to move outward and compressing the spring. When the delivery pump stops running, the resilience of the spring is used to drive the sealing block to reset, thereby achieving the closure of the diversion channel to prevent the backflow of crude oil and avoid the reverse loosening of the impeller. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 This is a schematic diagram of the main cross-sectional structure of the utility model;

[0018] Figure 2 It is a schematic diagram of the three-dimensional structure of the protective cover of the utility model;

[0019] Figure 3 This is a schematic diagram of the three-dimensional structure of the extruded sleeve of the utility model;

[0020] Figure 4 It is a three-dimensional structural schematic diagram of the automatic opening and closing mechanism of the utility model.

[0021] Explanation of the reference numerals in the figure: 1. base; 2. bearing seat; 3. servo motor; 4. protective cover; 5. conveying cover; 6. oil inlet pipe; 7. oil outlet pipe; 8. rotating shaft; 9. impeller; 10. limit guide assembly; 1001. guide hole; 1002. pressure plate; 1003. connecting plate; 1004. reinforcement block; 11. extrusion sleeve; 12. guide pipe; 13. guide channel; 14. sealing box; 15. limit guide block; 16. automatic opening and closing mechanism; 1601. guide rod; 1602. locking ball; 1603. blocking block; 1604. spring; 17. thrust adjustment assembly; 1701. movable collar; 1702. pressure ring; 18. sealing packing; 19. flange. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] See also Figure 1-Figure 4 The utility model provides an embodiment: an oil drilling and production delivery pump, comprising a base 1, a bearing seat 2 is installed at the top of the base 1, and a servo motor 3 is installed at the top of the base 1 on one side of the bearing seat 2, a protective cover 4 is arranged on the other side of the bearing seat 2, and one end of the protective cover 4 is connected to a delivery cover 5 through a flange 19, a rotating shaft 8 is installed at one end of the bearing seat 2, and one end of the rotating shaft 8 passes through the bearing seat 2 and the interior of the protective cover 4 and extends to the interior of the delivery cover 5, an impeller 9 is evenly arranged on the outside of one end of the rotating shaft 8, an oil inlet pipe 6 is installed at the bottom end of one side of the delivery cover 5, and an oil outlet pipe 7 is installed at the top of the delivery cover 5;

[0024] A flow guide pipe 12 is provided at one end of the oil outlet pipe 7 near the conveying cover 5, and a flow guide channel 13 is provided inside the flow guide pipe 12. A sealing box 14 is welded to the outside of the oil outlet pipe 7 on one side of the flow guide pipe 12, and an automatic opening and closing mechanism 16 is provided inside the sealing box 14.

[0025] The automatic opening and closing mechanism 16 includes a guide rod 1601 that runs through the end of the automatic opening and closing mechanism 16 away from the oil outlet pipe 7, and a locking ball 1602 is installed at one end of the guide rod 1601, and a blocking block 1603 is installed at the other end of the guide rod 1601, and one end of the blocking block 1603 extends to the inside of the guide channel 13 to block the guide pipe 12, and a spring 1604 is provided on the side of the blocking block 1603 away from the guide channel 13, and one end of the spring 1604 is connected to the inner wall of the sealing box 14;

[0026] The bottom end surface of the blocking block 1603 is an inclined surface, and the inclined surface is inclined downward from left to right. A limiting guide block 15 is provided on one side of both ends of the blocking block 1603 close to the guide rod 1601, and one side of the limiting guide block 15 is against the inner wall of the sealing box 14;

[0027] Specifically, Figure 1 , Figure 4 As shown, when in use, the special structure of the blocking block 1603 and the rising influx of oil are utilized to realize the automatic opening of the guide channel 13 to facilitate the transmission of oil, and the elastic reset effect of the spring 1604 is utilized to form an automatic closure inside the oil outlet pipe 7 when the machine stops to prevent the backflow of oil;

[0028] A rotating shaft 8 is provided on one side of the protective cover 4 close to the conveying cover 5, and an extrusion sleeve 11 is installed inside the protective cover 4 on the side of the rotating shaft 8 away from the conveying cover 5. An adjustment mechanism is connected between one side of the extrusion sleeve 11 and the protective cover 4, and the extrusion pressure adjustment mechanism includes a thrust adjustment component 17 and a limit guide component 10. The thrust adjustment component 17 is sleeved on the outside of the protective cover 4;

[0029] The thrust adjustment assembly 17 includes a movable collar 1701 sleeved on the outside of the protective cover 4, and a pressure ring 1702 is installed on one side of the movable collar 1701 close to the pressure plate 1002, and one side of the pressure ring 1702 abuts against one side of the pressure plate 1002;

[0030] The movable collar 1701 is located on a side of the limiting guide assembly 10 away from the rotating shaft 8, and the movable collar 1701 is threadedly connected to the protective cover 4;

[0031] Specifically, Figure 1 , Figure 2 As shown, when in use, a threaded connection is used to adjust and fix the position of the movable collar 1701, thereby adjusting the position of the pressure plate 1002, which is simple and convenient to operate, and the sealing effect of the sealing packing 18 can be achieved without disassembling the entire protective cover 4;

[0032] The limiting guide assembly 10 is arranged on a side of the extrusion sleeve 11 away from the rotating shaft 8, and the limiting guide assembly 10 is distributed in an annular shape with equal spacing on the extrusion sleeve 11;

[0033] The position limiting guide assembly 10 includes guide holes 1001 uniformly opened on the outside of the protective cover 4, and the guide holes 1001 are distributed in an annular shape with equal intervals on the protective cover 4, and the inside of the guide holes 1001 is penetrated by a pressing plate 1002, and a connecting plate 1003 is installed at the bottom end of the pressing plate 1002, one side of the connecting plate 1003 is connected to the top end of one side of the extrusion sleeve 11, and a reinforcing block 1004 is connected between the connecting plate 1003 and the pressing plate 1002;

[0034] The length of the guide hole 1001 is smaller than the thickness of the extruded sleeve 11, and the connecting plates 1003 and 1102 are vertically distributed;

[0035] One end of the limiting guide assembly 10 extends to the outside of the protective cover 4 and abuts against one side of the thrust adjustment assembly 17. The adjustment mechanism is used to generate an axial thrust on the extrusion sleeve 11 to squeeze the sealing packing 18 to improve the sealing effect.

[0036] Specifically, Figure 1 , Figure 2 and Figure 3 As shown, when in use, the guide hole 1001 is utilized in conjunction with the pressure plate 1002 and the connecting plate 1003 to limit the forward movement direction of the extrusion sleeve 11 and ensure uniform force on the extrusion sleeve 11. The length difference between the extrusion sleeve 11 and the guide hole 1001 is utilized to avoid leakage of the sealing filler 18.

[0037] Working principle: When the utility model is used, firstly, the oil inlet pipe 6 is connected to the oil pipeline, the oil outlet pipe 7 is connected to the delivery pipeline, and the servo motor 3 is started to make the rotating shaft 8 drive the impeller 9 to rotate, so that the impeller 9 attracts the crude oil in the oil inlet pipe 6 inward, and with the help of the rotation force, the crude oil is transmitted upward to the oil outlet pipe 7. Since the crude oil generates a vertical upward driving force on the bottom end of the blocking block 1603, the blocking block 1603 generates a rightward thrust, so that the blocking block 1603 moves, and the guide channel 13 is opened, so that the crude oil moves along the oil outlet pipe 7 to the delivery pipeline;

[0038] Secondly, when the servo motor 3 stops, the upward driving force of the oil disappears, and then the blocking block 1603 is reset under the elastic action of the spring 1604, so that the blocking block 1603 closes the guide channel 13 again, which is helpful to reduce the downward reflux effect of the crude oil;

[0039] Finally, the sealing filler 18 is utilized to seal the connection gap between the rotating shaft 8 and the conveying cover 5 to prevent the crude oil from leaking outward, and by rotating the movable sleeve 1701, it moves forward along the outside of the protective cover 4, thereby synchronously driving the pressure ring 1702 to generate a forward thrust on the pressure plate 1002, so that the pressure plate 1002 moves along the guide hole 1001 to further push the connecting plate 1003 forward, so that the extrusion sleeve 11 has an extrusion effect on the sealing filler 18, so that the sealing filler 18 further squeezes the connection gap, cooperates with the protective cover 4 to increase the radial deformation tendency of the sealing filler 18, so that it further fills the connection gap to ensure its sealing effect.

[0040] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" 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 indirectly connected 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.

[0041] The device embodiments described above are merely illustrative, wherein the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the scheme of this embodiment. Ordinary technicians in this field can understand and implement it without paying creative labor.

[0042] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the utility model.

Claims

1. A petroleum drilling and delivery pump, comprising a base (1), a bearing seat (2) being mounted on the top of the base (1), and a servo motor (3) being mounted on the top of the base (1) on one side of the bearing seat (2), a protective cover (4) being arranged on the other side of the bearing seat (2), and one end of the protective cover (4) being connected to a delivery cover (5) via a flange (19), characterized in that: A rotating shaft (8) is installed at one end of the bearing seat (2), and one end of the rotating shaft (8) passes through the bearing seat (2), the interior of the protective cover (4) and extends to the interior of the conveying cover (5). An impeller (9) is evenly arranged outside one end of the rotating shaft (8). An oil inlet pipe (6) is installed at the bottom end of one side of the conveying cover (5), and an oil outlet pipe (7) is installed at the top end of the conveying cover (5). A rotating shaft (8) is installed on a side of the protective cover (4) close to the conveying cover (5). An extrusion sleeve (11) is installed on the interior of the protective cover (4) on a side of the rotating shaft (8) away from the conveying cover (5). One side of the extrusion sleeve (11) is connected to the protective cover (4). An adjusting mechanism is connected between the two extrusion sleeves (11), and the extrusion pressure adjusting mechanism comprises a thrust adjusting component (17) and a limit guide component (10). The thrust adjusting component (17) is sleeved on the outside of the protective cover (4), and the limit guide component (10) is arranged on the side of the extrusion sleeve (11) away from the rotating shaft (8). The limit guide components (10) are distributed in an annular shape with equal spacing on the extrusion sleeve (11). One end of the limit guide component (10) extends to the outside of the protective cover (4) and abuts against one side of the thrust adjusting component (17). The adjusting mechanism is used to generate an axial thrust on the extrusion sleeve (11) so that it extrude the sealing filler (18) to improve the sealing effect.

2. The oil drilling and delivery pump according to claim 1, characterized in that: The position limiting guide assembly (10) comprises guide holes (1001) uniformly arranged on the outside of the protective cover (4), and the guide holes (1001) are distributed in an annular shape at equal intervals on the protective cover (4), the interior of the guide holes (1001) is penetrated by a pressure plate (1002), and a connecting plate (1003) is installed at the bottom end of the pressure plate (1002), one side of the connecting plate (1003) is connected to the top end of one side of the extrusion sleeve (11), and a reinforcing block (1004) is connected between the connecting plate (1003) and the pressure plate (1002).

3. The oil drilling and delivery pump according to claim 2, characterized in that: The length of the guide hole (1001) is smaller than the thickness of the extruded sleeve (11), and the connecting plates (1003) and (1102) are vertically distributed.

4. The oil drilling and delivery pump according to claim 1, characterized in that: The thrust adjustment assembly (17) comprises a movable collar (1701) sleeved on the outside of the protective cover (4), and a pressure ring (1702) is installed on one side of the movable collar (1701) close to the pressure plate (1002), and one side of the pressure ring (1702) is in contact with one side of the pressure plate (1002).

5. The oil drilling and delivery pump according to claim 4, characterized in that: The movable collar (1701) is located on a side of the position limiting guide assembly (10) away from the rotating shaft (8), and the movable collar (1701) is threadedly connected to the protective cover (4).

6. The oil drilling and delivery pump according to claim 1, characterized in that: A flow guide pipe (12) is arranged at one end of the oil outlet pipe (7) close to the conveying cover (5), and a flow guide channel (13) is provided inside the flow guide pipe (12). A sealing box (14) is welded to the outside of the oil outlet pipe (7) on one side of the flow guide pipe (12), and an automatic opening and closing mechanism (16) is arranged inside the sealing box (14).

7. The oil drilling and delivery pump according to claim 6, characterized in that: The automatic opening and closing mechanism (16) comprises a guide rod (1601) which passes through an end of the automatic opening and closing mechanism (16) away from the oil outlet pipe (7), and a locking ball (1602) is installed at one end of the guide rod (1601), and a blocking block (1603) is installed at the other end of the guide rod (1601), and one end of the blocking block (1603) extends to the inside of the guide channel (13) to block the guide pipe (12), and a spring (1604) is arranged on a side of the blocking block (1603) away from the guide channel (13), and one end of the spring (1604) is connected to the inner wall of the sealing box (14).

8. The oil drilling and delivery pump according to claim 7, characterized in that: The bottom end surface of the blocking block (1603) is an inclined surface, and the inclined surface is inclined downward from left to right. A limiting guide block (15) is provided on one side of both ends of the blocking block (1603) close to the guide rod (1601), and one side of the limiting guide block (15) is against the inner wall of the sealing box (14).

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