阅读说明：本技术 一种适用于柱塞脂润滑的固井压裂泵集油盘及其使用方法 (Well cementation fracturing pump oil collecting disc suitable for plunger grease lubrication and using method thereof ) 是由 胡圣华 李蓉 郑汉东 李德清 苑珍东 李文婕 皮振东 于 2021-08-25 设计创作，主要内容包括：本发明提供一种适用于柱塞脂润滑的固井压裂泵集油盘及其使用方法,油盘通过连接装置与泵总成连接,油盘内部设有刮油装置,刮油装置包括刮油板,刮油板形状与油盘底部存油截面形状一致,还设有驱动装置,驱动装置与刮油板连接,油盘底部或者端部设有排废口,驱动装置驱动刮油板滑动以使刮油板将废油脂从排废口排出。对比常规集油盘在油盘内增加了刮油装置,同时增大排出口孔径,可大大降低废润滑脂清理工作难度,减少作业期间设备维护保养工作量。(The invention provides a well cementation fracturing pump oil collecting tray suitable for plunger grease lubrication and a using method thereof. Compared with the conventional oil collecting tray, the oil scraping device is additionally arranged in the oil tray, the aperture of the discharge port is increased, the difficulty of waste lubricating grease cleaning can be greatly reduced, and the equipment maintenance workload during operation is reduced.)

1. A well cementation fracturing pump oil collecting tray suitable for lubricating plunger grease is characterized in that: food tray (2) are connected with the pump assembly through connecting device (3), food tray (2) inside is equipped with frizing device (1), frizing device (1) is including frizing board (101), frizing board (101) shape is unanimous with food tray (2) bottom oil storage cross-sectional shape, still be equipped with drive arrangement, drive arrangement is connected with frizing board (101), food tray (2) bottom or tip are equipped with waste discharge outlet (5), drive arrangement drive frizing board (101) slide so that frizing board (101) discharge waste oil from waste discharge outlet (5).

2. A well cementation fracturing pump oil collecting tray suitable for grease lubrication of a plunger as claimed in claim 1, wherein: the oil scraping device (1) comprises a vertical plate (107) and at least one oil scraping plate (101), wherein the oil scraping plate (101) is hinged to the vertical plate (107), a limiting plate (103) is further arranged on the vertical plate (107), and the oil scraping plate (101) is opened to abut against the limiting plate (103) when the oil scraping plate (101) slides towards the waste discharge port (5).

3. A well cementation fracturing pump oil collecting tray suitable for grease lubrication of a plunger as claimed in claim 2, wherein: a stop head (109) is also arranged on the vertical plate (107);

when the oil scraping plate (101) moves reversely, the oil scraping plate (101) rotates and abuts against the stop head (109).

4. A well cementation fracturing pump oil collecting tray suitable for grease lubrication of a plunger as claimed in claim 1, wherein: the driving device is a manual driving device and comprises a guide pipe (105), the guide pipe (105) is arranged inside the oil pan (2), an opening is formed below the guide pipe (105), a pull rod (104) is arranged inside the guide pipe (105), and a vertical plate (107) penetrates through the opening of the guide pipe (105) and is connected with the pull rod (104).

5. A well cementation fracturing pump oil collecting tray suitable for grease lubrication of a plunger as claimed in claim 1, wherein: the end part of the handle (4) is also provided with a handle (106), and the handle (4) penetrates through one side of the oil pan (2) and is connected with the handle (106).

6. A well cementation fracturing pump oil collecting tray suitable for grease lubrication of a plunger as claimed in claim 1, wherein: the driving device is an electric driving device and comprises a lead screw sliding block (6), a vertical plate (107) is connected with the lead screw sliding block (6), a lead screw (8) is arranged inside an oil disc (2), the lead screw (8) is in threaded connection with the lead screw sliding block (6), a motor is arranged on the outer side of the oil disc (2), and the motor is connected with the lead screw (8).

7. A well cementation fracturing pump oil collecting tray suitable for lubricating plunger grease according to claim 6, characterized by: lead screw (8) one side still is equipped with guide bar (7), and guide bar (7) both ends are connected with food tray (2), and lead screw slider (6) and guide bar (7) sliding connection.

8. A well cementation fracturing pump oil collecting tray suitable for grease lubrication of a plunger as claimed in claim 1, wherein: the connecting device (3) comprises a buckle connection structure, a hook connection structure or a thread connection structure.

9. A well cementation fracturing pump oil collecting tray suitable for grease lubrication of a plunger as claimed in claim 1, wherein: the two ends of the oil pan (2) are also provided with a plurality of handles (4).

10. A method of using a well cementation fracturing pump oil collecting tray suitable for plunger grease lubrication according to any one of claims 1 to 9, wherein:

the method for manually discharging the waste oil comprises the following steps:

s1, lifting the oil pan (2) by using the handle (4) and installing the oil pan on the pump assembly;

s2, after waste grease inside the oil pan (2) is accumulated, the pull rod (104) is used for driving the whole oil scraping device (1) to move back and forth inside the oil pan (2) through the pull handle (106), when the oil scraping plate (101) moves towards the waste discharge port (5) end of the oil pan (2), the oil scraping plate (101) is in an opening state or a flattening state, and the shape of the oil scraping plate (101) is consistent with the shape of the oil storage section at the bottom of the oil pan (2);

s3, closing the oil scraping plate (101) to a certain included angle during reverse movement, wherein the oil scraping plate (101) is of an up-and-down opening and closing structure and is transversely lifted during reverse movement, so that waste lubricating grease is prevented from being pushed in the reverse direction;

s4, opening and closing of the oil scraping plate (101) of the oil scraping device (1) are realized by the resistance of lubricating grease when the device moves forwards and backwards, and the opening and closing angle is limited by a limit plate (103) and a stop head (109) on the oil scraping plate (101);

the method for automatically discharging the waste oil comprises the following steps:

a1, after waste grease in the oil pan (2) is accumulated, the controller controls the motor to rotate, the motor drives the screw rod (8) to drive the oil scraping device (1) to move back and forth in the oil pan (2), and the principle of an oil scraping plate (101) of the oil scraping device (1) is the same as that of the steps S3-S4;

a2, the control center controls the number of turns of the motor and the stroke of the oil scraping device (1) in the oil pan (2);

a3, the control center controls the running time of the motor and controls the oil scraping device (1) to clean up waste oil and grease in the oil pan (2).

Technical Field

The invention relates to the field of petroleum drilling and well cementation fracturing pumps, in particular to a well cementation fracturing pump oil collecting tray suitable for plunger grease lubrication and a using method thereof.

Background

The plunger pump is one of key devices of oil and gas exploitation series equipment, and is widely applied to well cementation, fracturing and water injection operations. In recent years, the requirements of oil and gas engineering service companies on operation environmental protection and low cost are higher and higher, and grease lubrication gradually replaces oil lubrication to become the first choice for plunger lubrication of plunger pump equipment for oil fields due to the low cost and environmental protection advantages of the grease lubrication. Because the lubricating oil has better fluidity, the oil collecting tray of the conventional well cementation fracturing plunger pump is mostly a simple thin-wall container, and the waste lubricating oil can be easily discharged through the liquid discharge pipe of the oil collecting tray. When the plunger is lubricated by using lubricating grease, the flowability of the lubricating grease is poor, and the flowability of the lubricating grease becomes worse after the rubber parts such as packing, sealing ring and the like are mixed with abrasive dust, so that the waste lubricating grease cannot be discharged through a liquid discharge pipeline of the oil collecting tray. Meanwhile, the assembly space is small, the oil collecting tray is inconvenient to disassemble, and the waste lubricating grease is difficult to clean.

Disclosure of Invention

The invention mainly aims to provide an oil collecting tray of a well cementation fracturing pump suitable for plunger grease lubrication and a using method thereof, and solves the problems that waste lubricating grease cannot be discharged through a liquid discharge pipeline of the oil collecting tray, the oil collecting tray is inconvenient to disassemble, and the difficulty in cleaning the waste lubricating grease is high.

In order to solve the technical problems, the technical scheme adopted by the invention is as follows: the oil pan is connected with a pump assembly through a connecting device, an oil scraping device is arranged inside the oil pan and comprises an oil scraping plate, the shape of the oil scraping plate is consistent with the shape of an oil storage cross section at the bottom of the oil pan, a driving device is further arranged, the driving device is connected with the oil scraping plate, a waste discharge port is formed in the bottom or the end of the oil pan, and the driving device drives the oil scraping plate to slide so that waste oil and fat are discharged from the waste discharge port by the oil scraping plate.

In the preferred scheme, the oil scraping device comprises a vertical plate and at least one oil scraping plate, the oil scraping plate is hinged to the vertical plate, a limiting plate is further arranged on the vertical plate, and the oil scraping plate is opened to abut against the limiting plate when sliding towards the waste discharge port.

In the preferred scheme, a stop head is also arranged on the vertical plate;

when the oil scraping plate moves reversely, the oil scraping plate rotates and abuts against the blocking head.

In the preferred scheme, the driving device is a manual driving device and comprises a guide pipe, the guide pipe is arranged inside the oil pan, an opening is formed in the lower portion of the guide pipe, a pull rod is arranged in the guide pipe, and the vertical plate penetrates through the opening of the guide pipe and is connected with the pull rod.

In a preferable scheme, the end part of the handle is also provided with a handle, and the handle penetrates through one side of the oil pan and is connected with the handle.

In the preferred scheme, drive arrangement is electric drive device, including lead screw slider, erects the version and is connected with lead screw slider, and the food tray is inside to be equipped with the lead screw, lead screw and lead screw slider threaded connection, and the food tray outside is equipped with the motor, motor and screw connection.

In the preferred scheme, lead screw one side still is equipped with the guide bar, and the guide bar both ends are connected with the food tray, lead screw slider and guide bar sliding connection.

In the preferred scheme, the connecting device comprises a buckle connection structure, a hook connection structure or a threaded connection structure.

In a preferable scheme, a plurality of handles are further arranged at two ends of the oil pan.

The method for manually discharging the waste oil comprises the following steps:

s1, lifting the oil pan by using a handle and installing the oil pan on the pump assembly;

s2, after waste grease in the oil pan is accumulated, the pull rod is used for driving the whole oil scraping device to move back and forth in the oil pan, the oil scraping plate is in an open state or a flattened state when moving towards the waste discharge end of the oil pan, and the shape of the oil scraping plate is consistent with the shape of the oil storage section at the bottom of the oil pan;

s3, closing the oil scraping plate to a certain included angle during reverse movement, wherein the oil scraping plate is of an up-and-down opening and closing structure and is transversely lifted during reverse movement, so that waste lubricating grease is prevented from being pushed in the reverse direction;

and S4, opening and closing the oil scraping plate of the oil scraping device are realized by the resistance of the lubricating grease when the device moves forwards and backwards, and the opening and closing angle is limited by a limit plate and a stop head on the oil scraping plate.

The method for automatically discharging the waste oil comprises the following steps:

a1, after waste grease in the oil pan is accumulated, the controller controls the motor to rotate, the motor drives the screw rod to drive the oil scraping device to move back and forth in the oil pan, and the principle of an oil scraping plate of the oil scraping device is the same as that of the steps S3-S4;

a2, the control center controls the number of turns of the motor and the stroke of the oil scraping device in the oil pan;

a3 and a control center control the running time of the motor and control the oil scraping device to clean up waste oil in the oil pan.

The invention provides an oil collecting disc of a well cementation fracturing pump suitable for plunger grease lubrication and a use method thereof. Compared with the conventional oil collecting tray, the oil scraping device is additionally arranged in the oil tray, the hole diameter of the discharge port is increased, the difficulty of waste lubricating grease cleaning can be greatly reduced, and the equipment maintenance workload during operation can be reduced. Waste lubricating grease can be conveniently cleaned when the oil collecting tray is not detached. The oil scraping device can move back and forth in the oil pan, and the shape of the oil scraping plate is consistent with the shape of the oil storage section at the bottom of the oil pan when the oil scraping plate moves towards the liquid discharge end of the oil pan; the scraper is closed to certain contained angle during reverse movement, avoids pushing abandonment lubricating grease in the opposite direction, also can design the structure that opens and shuts from top to bottom, and the efficiency of scraping oil and arranging waste oil is high, simple structure, convenient and practical.

Drawings

The invention is further illustrated by the following examples in conjunction with the accompanying drawings:

FIG. 1 is a general block diagram of the present invention;

FIG. 2 is a block diagram of the manually actuated oil scraping device of the present invention;

FIG. 3 is a view showing the construction of the oil scraping apparatus of the present invention;

FIG. 4 is a view showing a structure of a reverse thrust structure of the oil scraping apparatus of the present invention;

FIG. 5 is a structural view of an electrically driven oil scraping device according to the present invention;

FIG. 6 is a view showing the construction of the oil scraping plate of the vertically opening and closing structure of the present invention;

FIG. 7 is a block diagram of a single oil scraper blade according to the present invention;

in the figure: an oil scraping device 1; a scraper plate 101; a hinge 102; a stopper plate 103; a pull rod 104; a guide tube 105; a handle 106; a vertical plate 107; a rotating shaft 108; a stopper 109; an oil pan 2; a connecting device 3; a handle 4; a waste discharge port 5; a lead screw slider 6; a guide rod 7; and a lead screw 8.

Detailed Description

As shown in figures 1-7, a well cementation fracturing pump oil collecting tray suitable for plunger grease lubrication and a using method thereof are provided, wherein an oil pan 2 is connected with a pump assembly through a connecting device 3, an oil scraping device 1 is arranged inside the oil pan 2, the oil scraping device 1 comprises an oil scraping plate 101, the shape of the oil scraping plate 101 is consistent with the shape of an oil storage cross section at the bottom of the oil pan 2, a driving device is further arranged, the driving device is connected with the oil scraping plate 101, a waste discharge port 5 is arranged at the bottom or at the end part of the oil pan 2, and the driving device drives the oil scraping plate 101 to slide so that waste grease is discharged from the waste discharge port 5 by the oil scraping plate 101. During the use, the device is assembled at the middle connecting part of the power end and the hydraulic end of the well cementation fracturing pump and used for collecting waste lubricating grease or lubricating oil discharged by the lubrication of the plunger at the hydraulic end and lubricating oil possibly leaked at the oil seal part of the small connecting rod at the power end. Compared with the conventional oil collecting tray, the oil scraping device is additionally arranged in the oil tray, the hole diameter of the discharge port is increased, the difficulty of waste lubricating grease cleaning can be greatly reduced, and the equipment maintenance workload during operation can be reduced.

In the preferred scheme, the oil scraping device 1 comprises a vertical plate 107 and at least one oil scraping plate 101, wherein the oil scraping plate 101 is hinged to the vertical plate 107, a limiting plate 103 is further arranged on the vertical plate 107, and the oil scraping plate 101 is opened to abut against the limiting plate 103 when the oil scraping plate 101 slides towards the waste discharge port 5. The vertical plate 107 is also provided with a stopper 109. The scraper 101 rotates against the stop 109 when the scraper 101 moves in the reverse direction.

The oil scraping plate 101 of the oil scraping device 1 includes the oil scraping plates 101 installed in a left-right symmetrical manner and configured as shown in fig. 2, or the oil scraping plates 101 adopting an up-down opening and closing structure are configured as shown in fig. 6, or a single oil scraping plate 101 structure is configured as shown in fig. 7.

The oil scraping device 1 comprises a vertical plate 107, a rotating shaft 108 is arranged on the vertical plate 107, the oil scraping device further comprises at least two oil scraping plates 101, hinges 102 are arranged on the oil scraping plates 101, the two oil scraping plates 101 are symmetrically arranged, the hinges 102 of the oil scraping plates 101 are hinged to the rotating shaft 108, limiting plates 103 are further arranged on two sides of the vertical plate 107, and the oil scraping plates 101 are opened to abut against the limiting plates 103 when the oil scraping plates 101 slide towards the waste discharge port 5. The oil scraping device 1 with the structure shown in figure 3 can move back and forth in the oil pan, and the shape of the oil scraping plate 101 is consistent with the shape of the oil storage section at the bottom of the oil pan 2 when the oil scraping plate is in an open state when moving towards the liquid discharging end of the oil pan 2; the scraper 101 is closed to a certain angle during reverse movement to avoid pushing the waste grease in the reverse direction, and can be designed to be an up-and-down opening and closing structure, and the principle is the same as the above. The joint parts of the oil scraping plates 101 are connected by hinges 102, and the opening and the closing are realized by the resistance of lubricating grease when the device moves forwards and backwards, and the opening and the closing angles are limited by limit plates 103 on the oil scraping plates.

The oil pan 2 is of a box body structure with an upper opening formed by stamping or welding, the bottom of the oil pan is provided with an oil storage structure, and the cross section of the oil storage part is symmetrical left and right, preferably in a circular or inverted isosceles trapezoid structure.

The oil pan 2 is of a box body structure with an upper opening formed by stamping or welding, the bottom of the oil pan is provided with an oil storage structure, the cross section of the oil storage part is bilaterally symmetrical, preferably of an arc-shaped structure, and the oil storage part can also be of an inverted isosceles trapezoid structure. The connecting device 3 is used for assembling and connecting the oil collecting tray and the pump assembly, and a clamping connection structure, a hook connection structure or a threaded connection structure is recommended. The figures show a snap connection with a bolt lock. The handle 4 is bent from round steel, welded to the oil pan, and used for lifting the oil pan during handling such as loading and unloading. The drain port 5 is used for discharging waste lubricating oil or grease, and is a through-hole pipe joint welded to an oil pan.

In a preferable scheme, the vertical plate 107 is further provided with a stopper 109, the stopper 109 penetrates through the two oil scraping plates 101 and is arranged on the front side, and when the oil scraping plates 101 move in the reverse direction, the oil scraping plates 101 are closed to abut against the stopper 109 to form an acute angle. The two oil scraping plates 101 are prevented from sticking together when pushed back, and are unfolded into a flat plate structure when scraping oil.

In a preferred scheme, the driving device is a manual driving device and comprises a guide pipe 105, the guide pipe 105 is arranged inside the oil pan 2, an opening is formed below the guide pipe 105, a pull rod 104 is arranged inside the guide pipe 105, and a vertical plate 107 penetrates through the opening of the guide pipe 105 and is connected with the pull rod 104. The handle 4 is also provided with a pull handle 106 at the end, and the handle 4 is connected to the pull handle 106 through the oil pan 2 side. The manual driving device is structured as shown in fig. 2, the handle 4 can drag the vertical plate 107, and the oil scraping plate 101 on the vertical plate 107 can scrape oil.

In the preferred scheme, drive arrangement is electric drive device, including lead screw slider 6, erects version 107 and is connected with lead screw slider 6, and 2 inside lead screws 8 that are equipped with of food tray, lead screw 8 and 6 threaded connection of lead screw slider, the 2 outsides of food tray are equipped with the motor, and the motor is connected with lead screw 8. And a guide rod 7 is further arranged on one side of the lead screw 8, two ends of the guide rod 7 are connected with the oil disc 2, and the lead screw sliding block 6 is in sliding connection with the guide rod 7. With the structure shown in fig. 5, the motor drives the screw 8 to rotate, and the oil scraping plate 101 can slide along the inside of the oil pan 2 to discharge oil.

In a preferred embodiment, the connecting device 3 comprises a snap connection, a hook connection or a threaded connection. The preferred buckle of this scheme is connected.

In a preferred scheme, a plurality of handles 4 are further arranged at two ends of the oil pan 2.

Example 2

As further described in connection with example 1, the method for manually discharging grease, which is constructed as shown in fig. 1 to 7, comprises: s1, the oil pan 2 is lifted by the handle 4 and mounted on the pump assembly.

After waste grease inside the oil pan 2 is accumulated, the pull rod 104 is used for driving the whole oil scraping device 1 to move back and forth inside the oil pan 2 by using the handle 106, the oil scraping plate 101 is in an open state or a flattening state when moving towards the end of the waste discharge port 5 of the oil pan 2, and the shape of the oil scraping plate 101 is consistent with the shape of the oil storage section at the bottom of the oil pan 2.

The oil scraping plate 101 is closed to a certain included angle during reverse movement, the oil scraping plate 101 is of an up-and-down opening and closing structure, and the waste lubricating grease is transversely lifted during reverse movement, so that the waste lubricating grease is prevented from being pushed in the reverse direction.

The oil scraper device 1 is characterized in that the opening and closing of the oil scraper plate 101 are realized by the resistance of lubricating grease when the device moves back and forth, and the opening and closing angles are limited by a limit plate 103 and a stop 109 on the oil scraper plate 101.

The method for automatically discharging the waste oil comprises the following steps: after waste grease in the oil pan 2 is accumulated, the controller controls the motor to rotate, the motor drives the screw 8 to drive the oil scraping device 1 to move back and forth in the oil pan 2, and the principle of the oil scraping plate 101 of the oil scraping device 1 is the same as that of the steps S3-S4.

The control center controls the number of turns of the motor and the stroke of the oil scraping device 1 in the oil pan 2.

The control center controls the running time of the motor and controls the oil scraping device 1 to clean up waste oil and grease in the oil pan 2.

The above-described embodiments are merely preferred embodiments of the present invention, and should not be construed as limiting the present invention, and the scope of the present invention is defined by the claims, and equivalents including technical features described in the claims. I.e., equivalent alterations and modifications within the scope hereof, are also intended to be within the scope of the invention.