Intelligent ball collecting machine

Abstract

The invention relates to the technical field of crude oil gathering and transportation, and provides an intelligent ball collecting machine, comprising: a machine body, the machine body is provided with an oil conveying channel and a ball feeding channel which intersect and communicate with each other, a pressure detection element is provided at the upstream of the oil conveying channel; a ball feeding mechanism is arranged on the machine body, comprising a first plunger, the first plunger can slide back and forth in the ball feeding channel, and the inner end of the first plunger is provided with a ball collecting channel; a ball blocking rod is arranged at the downstream of the oil conveying channel; an oil suction and discharge mechanism is arranged on the machine body, comprising an oil storage chamber and a second plunger, the second plunger can be reciprocatingly slidably arranged in the oil storage chamber to form a suction force or a pressing force in the oil storage chamber; the first plunger is suitable for switching between multiple positions, so as to realize automatic and accurate recovery of wax cleaning balls, and can recover crude oil on the surface of the wax cleaning balls, reduce the oil carrying amount of the wax cleaning balls, and has the characteristics of high ball collecting efficiency and easy management.

Description

Technical Field

[0001] The invention relates to the technical field of crude oil gathering and transportation, and in particular to an intelligent ball collecting machine. Background Art

[0002] During the crude oil extraction and transportation process, crude oil contains paraffin wax to varying degrees. During the pipeline transportation process, paraffin wax will be precipitated to varying degrees. The paraffin wax adheres to the wall of the crude oil transportation pipe, which is easy to cause blockage, seriously affecting the crude oil flow rate and normal oil transportation. At present, most major oil fields use manual or automatic rubber wax removal balls at the wellhead. The wax removal balls are pushed forward by the power of the crude oil in the pipeline, squeezing out the paraffin wax attached to the pipe wall and taking it away to achieve wax removal. The balls are mainly collected in the main pipeline where the pipelines of each single well in the station are gathered. The wax removal ball recovery mainly relies on the station's manual timed ball collection or automatic ball collection device. However, the above methods have the following problems: (1) The use of manual ball collection has problems such as high work intensity, cumbersome on-site operations, great safety hazards, large oil carrying volume and low efficiency; (2) The current automatic ball collection device has problems such as inability to accurately collect balls and large oil carrying volume. Summary of the invention

[0003] The present invention provides an intelligent ball collecting machine, which can realize automatic and accurate recovery of wax cleaning balls, recover crude oil on the surface of the wax cleaning balls, reduce the amount of oil carried by the wax cleaning balls, and has the characteristics of high ball collecting efficiency, easy management, etc.

[0004] The present invention provides an intelligent ball collecting machine, comprising: a machine body, the machine body is provided with an oil delivery channel and a ball delivery channel intersecting and communicating with each other, and a pressure detection element is provided at the upstream of the oil delivery channel; a ball delivery mechanism, arranged on the machine body, comprising a first plunger, the first plunger can slide back and forth in the ball delivery channel, and the inner end of the first plunger is provided with a ball collecting channel; a ball blocking rod, arranged at the downstream of the oil delivery channel, used to block the wax cleaning ball entering through the upstream of the oil delivery channel so that it is located in the ball collecting channel; an oil suction and discharge mechanism, arranged on the machine body, comprising an oil storage chamber and a second plunger, the second plunger The plug is reciprocatingly slidably arranged in the oil storage chamber to form a suction force or a pressing force in the oil storage chamber; the first plunger is suitable for switching between multiple positions, when the inner end of the first plunger is located at the first position in the ball delivery channel, the ball receiving channel is located in the oil delivery channel and is connected with the oil delivery channel, when the inner end of the first plunger is located at the second position in the ball delivery channel, the ball receiving channel is connected with the oil storage chamber, and when the inner end of the first plunger is located at the third position, the ball receiving channel is located outside the ball delivery channel to recover the wax cleaning balls in the ball receiving channel.

[0005] According to an intelligent ball collecting machine provided by the present invention, a bypass channel is provided in the body, a first end of the bypass channel is connected to the upstream of the oil delivery channel via a pressure regulating mechanism, a second end of the bypass channel is connected to the downstream of the oil delivery channel, and the pressure regulating mechanism is used to regulate the upstream pressure of the oil delivery channel.

[0006] According to an intelligent ball collecting machine provided by the present invention, the pressure regulating mechanism includes: a valve cover, a guide sleeve, a guide rod, a valve core and a spring, the valve cover is arranged on the machine body, a part of the guide sleeve extends into the valve cover from the bottom of the valve cover, a part of the guide rod is slidably arranged in the guide sleeve, the other part of the guide rod is provided with the valve core, a spring is provided between the valve core and the other part of the guide sleeve, and the valve core is arranged at the first end of the bypass flow channel for opening and closing the bypass flow channel.

[0007] According to an intelligent ball collecting machine provided by the present invention, the pressure regulating mechanism also includes a connecting rod, the first end of the connecting rod extends from the top of the valve cover and is connected to the guide rod, the second end of the connecting rod is provided with a first sensor plate, and the valve cover is provided with a first proximity switch and a second proximity switch that cooperate with the first sensor plate to detect the opening and closing of the bypass channel.

[0008] According to an intelligent ball collecting machine provided by the present invention, the pressure regulating mechanism also includes: an adjusting rod, an adjusting cover and an adjusting screw, the adjusting rod is sleeved on the connecting rod, the adjusting rod is provided with a boss, the boss extends from the top of the valve cover and abuts against part of the guide sleeve, the adjusting cover is sleeved on the adjusting rod and pressed against the boss, and the adjusting screw connects the adjusting cover to the top of the valve cover.

[0009] According to an intelligent ball collecting machine provided by the present invention, the ball sending mechanism also includes a first driving device, the driving end of the first driving device is connected to the outer end of the first plunger, and the driving end of the first driving device is provided with a second sensing sheet, and the fixed end of the first driving device is provided with a third proximity switch, a fourth proximity switch and a fifth proximity switch that cooperate with the second sensing sheet, for respectively detecting the first position, the second position and the third position.

[0010] According to an intelligent ball collecting machine provided by the present invention, the oil suction and discharge mechanism also includes a second driving device, the driving end of the second driving device is connected to the second plunger, and the driving end of the second driving device is provided with a third sensing plate, and the fixed end of the second driving device is provided with a sixth proximity switch and a seventh proximity switch that cooperate with the third sensing plate.

[0011] According to an intelligent ball collecting machine provided by the present invention, a ball retrieval mechanism for recovering the wax cleaning balls is provided on the outer side of the machine body, and the ball retrieval mechanism includes a ball pushing device, a ball collecting basket and an oil collecting tank. The ball pushing device pushes the wax cleaning balls into the ball collecting basket, and the oil collecting tank is located below the ball collecting basket.

[0012] According to an intelligent ball collecting machine provided by the present invention, the oil delivery channel and the ball sending channel are arranged on the side of the machine body, the oil suction and discharge mechanism is arranged at the bottom of the machine body, a first oil hole is arranged at the bottom of the ball collecting channel, and a second oil hole matching the first oil hole is arranged at the bottom of the machine body corresponding to the second position, and the second oil hole is connected to the oil storage chamber.

[0013] An intelligent ball collecting machine provided according to the present invention also includes a control box for controlling the operation of the entire machine.

[0014] In the intelligent ball collecting machine provided by the present invention, crude oil carrying wax-cleaning balls enters the machine body through the upstream of the oil delivery channel, and the first plunger is located in the first position (initial state). At this time, the ball collecting channel of the first plunger is located in the oil delivery channel and is connected to the oil delivery channel, and the wax-cleaning ball is blocked by the downstream ball blocking rod so that it is located in the ball collecting channel of the first plunger, and then the ball collecting channel is blocked, resulting in an increase in the upstream pressure of the oil delivery channel. Therefore, the pressure detection element detects the pressure change to determine the incoming ball, that is, whether the wax-cleaning ball is in the ball collecting channel of the first plunger. When the wax-cleaning ball is located in the ball collecting channel, the first plunger is controlled to slide in the ball delivery channel to move the ball collecting channel of the first plunger to the second position. At this time, the ball collecting channel of the first plunger is connected to the oil storage chamber of the oil suction and discharge mechanism. The first plunger is connected to the second position, and the second plunger is controlled to slide to generate suction force to suck the crude oil carried in the ball receiving channel into the oil storage chamber, so as to recover the excess crude oil in the ball receiving channel and reduce the oil carrying amount of the wax cleaning ball; the first plunger is continued to be controlled to move to the third position, at which time the ball receiving channel of the first plunger is located outside the ball sending channel, that is, outside the machine body, so as to facilitate the recovery of the wax cleaning balls in the ball receiving channel; after recovering the wax cleaning balls, the first plunger is controlled to return to the second position, at which time, the second plunger is controlled to move in the opposite direction to generate a pressing force to press out the crude oil sucked into the oil storage chamber and re-discharge it into the ball receiving channel of the first plunger, and then the first plunger is controlled to continue to return to the first position, at which time the ball receiving channel is connected to the oil delivery channel again, and the crude oil recovered in the ball receiving channel is discharged to the downstream together with the oil delivery channel. Therefore, the present invention can realize the automatic and accurate recovery of the wax cleaning balls, and can recover the crude oil on the surface of the wax cleaning balls, reduce the oil carrying amount of the wax cleaning balls, avoid polluting the environment, and has the characteristics of high ball collection efficiency and easy management.

[0015] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the present invention or related technologies, the following briefly introduces the drawings required for use in the embodiments or related technical descriptions. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 It is a structural schematic diagram of the intelligent ball collecting machine provided by the present invention;

[0018] Figure 2 This is a front view of the intelligent ball collecting machine provided by the present invention;

[0019] Figure 3 It is a top view of the intelligent ball collecting machine provided by the present invention;

[0020] Figure 4 yes Figure 3 Cross-sectional view at AA of FIG.

[0021] Figure 5 yes Figure 3 A cross-sectional view of the section at BB;

[0022] Figure 6 is a schematic structural diagram of a first plunger provided by the present invention;

[0023] Figure 7 is a cross-sectional view of a first plunger provided by the present invention;

[0024] Figure 8 It is a structural schematic diagram of the pressure regulating mechanism provided by the present invention;

[0025] Reference numerals:

[0026] 1: body; 2: oil delivery channel; 201: inlet end; 202: outlet end;

[0027] 3: pressure detection element; 4: first plunger; 5: ball receiving channel; 6: ball blocking rod;

[0028] 7: oil storage chamber; 8: second plunger; 9: bypass channel; 10: pressure regulating mechanism;

[0029] 11: installation channel; 12: valve cover; 13: guide sleeve; 14: guide rod; 15: valve core;

[0030] 16: spring; 17: first sealing ring; 18: flange; 19: second sealing ring;

[0031] 20: connecting rod; 21: first sensing sheet; 22: first bracket; 23: first proximity switch;

[0032] 24: Second proximity switch; 25: Adjustment rod; 26: Adjustment cover; 27: Adjustment screw;

[0033] 28: shoulder; 29: first driving device; 30: second sensing plate;

[0034] 31: third proximity switch; 32: fourth proximity switch; 33: fifth proximity switch;

[0035] 34: sheath; 35: first shield; 36: second bracket; 37: second drive device;

[0036] 38: third sensor sheet; 39: sixth proximity switch; 40: seventh proximity switch;

[0037] 41: second shield; 42: third bracket; 43: ball pushing device; 44: ball receiving basket;

[0038] 45: oil collecting tank; 46: third protective cover; 47: fourth protective cover; 48: fourth bracket;

[0039] 49: fourth induction plate; 50: first push rod; 51: second push rod; 52: guide block;

[0040] 53: eighth proximity switch; 54: third sealing ring; 55: fourth sealing ring;

[0041] 56: fifth sealing ring; 57: dust ring; 58: first oil hole; 59: second oil hole;

[0042] 60: control box; 61: frame. DETAILED DESCRIPTION

[0043] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with the drawings of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0044] In the description of the embodiments of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limitations on the embodiments of the present invention. In addition, the terms "first", "second", "third" and the like are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0045] In the description of the embodiments of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" 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 an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present invention can be understood according to specific circumstances.

[0046] In the embodiments of the present invention, unless otherwise clearly specified and limited, the first feature being "above" or "below" the second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "above" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0047] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. 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 embodiment of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0048] Combine the following Figure 1-Figure 8 The intelligent ball collecting machine of the present invention is described.

[0049] According to an embodiment of the present invention, Figure 1-Figure 7 As shown, the intelligent ball collecting machine provided by the present invention mainly includes: a body 1, a ball feeding mechanism, a ball blocking rod 6 and an oil suction and discharge mechanism. Among them, an oil delivery channel 2 and a ball delivery channel are provided inside the body 1, and the oil delivery channel 2 and the ball delivery channel respectively pass through the side of the body 1, and the upstream (inlet end 201) and downstream (outlet end 202) of the oil delivery channel 2 are connected to the aggregate pipeline for transporting crude oil, so that the crude oil and wax balls in the aggregate pipeline flow through the oil delivery channel 2, and a pressure detection element 3 is provided upstream of the oil delivery channel 2 for detecting the upstream pressure of the oil delivery channel 2; the ball delivery channel intersects with the oil delivery channel 2 and is interconnected. In this example, the ball delivery channel and the oil delivery channel 2 are arranged perpendicular to each other, which is convenient for pipeline design. The pressure detection element 3 can be a pressure sensor, a pressure transmitter or other components.

[0050] The ball delivery mechanism is arranged at the side of the body 1, and mainly comprises a first plunger 4, which is arranged in the ball delivery channel and can slide back and forth in the ball delivery channel, and the inner end of the first plunger 4 is provided with a ball receiving channel 5 along the direction of the oil delivery channel 2, which is used to recover the wax cleaning balls; it should be understood that both ends of the ball receiving channel 5 of the present invention are provided with openings, and in the initial state, the ball receiving channel 5 is located in the oil delivery channel 2 and is connected to the oil delivery channel 2, and the inner end of the first plunger 4 is the part of the first plunger 4 located in the ball delivery channel, and correspondingly, the outer end of the first plunger 4 is the part of the first plunger located outside the ball delivery channel. The present invention can realize automatic ball collection and delivery through the ball delivery mechanism.

[0051] The ball blocking rod 6 is arranged at the downstream of the oil delivery channel 2, and is used to block the wax cleaning balls entering from the upstream of the oil delivery channel 2 and make them located in the ball receiving channel 5 of the first plunger 4. Specifically, the ball receiving channel 5 of the first plunger 4 is located at the first position I (initial state). At this time, the ball receiving channel 5 of the first plunger 4 is located in the oil delivery channel 2 and is connected to the oil delivery channel 2. The crude oil and the wax cleaning balls enter the ball receiving channel 5 from the upstream of the oil delivery channel 2, and the wax cleaning balls are blocked by the downstream ball blocking rod 6, so that the wax cleaning balls are located in the ball receiving channel 5 of the first plunger 4, and the ball receiving channel 5 is blocked. At this time, crude oil will also remain in the ball receiving channel 5.

[0052] The oil suction and discharge mechanism is arranged at the bottom of the body 1, and includes an oil storage chamber 7 and a second plunger 8. The second plunger 8 can be reciprocatingly slidably arranged in the oil storage chamber 7 to form a suction force or a pressure force in the oil storage chamber. By driving the second plunger 8 to slide reciprocatingly, a suction force or a pressure force can be formed. The suction force can be used to suck the crude oil in the ball receiving channel 5 of the first plunger 4 into the oil storage chamber 7, so as to realize the recovery of the excess crude oil in the ball receiving channel 5 and reduce the oil carrying amount of the wax cleaning ball; the suctioned crude oil can be pressed out and sent back to the ball receiving channel 5 by the pressure force, and then discharged to the downstream together with the oil delivery channel 2, so as to realize resource recovery and avoid environmental pollution.

[0053] In addition, the first plunger 4 of the present invention is suitable for switching between multiple positions. When the inner end of the first plunger 4 is located at the first position I in the ball delivery channel, the ball receiving channel 5 is located in the oil delivery channel 2 and is connected to the oil delivery channel 2. During the ball receiving process, the ball receiving channel 5 can recover the wax cleaning balls in the oil delivery channel 2. During the resetting process, the ball receiving channel 5 can re-deliver the crude oil discharged through the oil suction and discharge mechanism into the oil delivery channel 2 and discharge it to the downstream.

[0054] When the inner end of the first plunger 4 is located at the second position II in the ball delivery channel, the ball receiving channel 5 of the first plunger 4 is connected to the oil storage chamber. During the ball receiving process, the second plunger 8 is controlled to move to generate suction force to suck the crude oil in the ball receiving channel 5 into the oil storage chamber 7; during the resetting process, the second plunger 8 is controlled to move in the opposite direction to generate extrusion force to press the sucked crude oil back into the ball receiving channel 5.

[0055] When the inner end of the first plunger 4 is located at the third position III, the ball receiving channel 5 of the first plunger 4 is located outside the ball delivering channel, that is, outside the body 1, so that the wax cleaning balls in the ball receiving channel 5 after cleaning can be recovered.

[0056] The working principle of the intelligent ball collecting machine provided by the embodiment of the present invention mainly includes the following two stages.

[0057] Ball collecting process: Crude oil carrying wax-cleaning balls enters the machine body 1 through the upstream of the oil delivery channel 2, and the first plunger 4 is located at the first position I (initial state). At this time, the ball-collecting channel 5 of the first plunger 4 is located in the oil delivery channel 2 and is connected to the oil delivery channel 2. The wax-cleaning balls are blocked by the downstream ball-blocking rod 6 so that they are located in the ball-collecting channel 5 of the first plunger 4, and then the ball-collecting channel 5 is blocked, resulting in an increase in the upstream pressure of the oil delivery channel 2. Therefore, the pressure detection element 3 can be used to determine the incoming ball, that is, to determine whether the wax-cleaning ball is in the ball-collecting channel 5 of the first plunger 4. When the wax-cleaning ball is located in the ball-collecting channel 5, the pressure detection element 3 can be used to determine whether the wax-cleaning ball is in the ball-collecting channel 5 of the first plunger 4. By controlling the first plunger 4 to slide in the ball delivery channel, the ball receiving channel of the first plunger 4 is moved to the second position II. At this time, the ball receiving channel 5 of the first plunger 4 is connected with the oil storage chamber 7 of the oil suction and discharge mechanism. The second plunger 8 is controlled to slide to generate a suction force to suck the crude oil in the ball receiving channel 5 into the oil storage chamber 7, so as to recover the excess crude oil in the ball receiving channel 5 and reduce the oil carrying amount of the wax cleaning balls. The first plunger 4 is continued to be controlled to move to the third position III. At this time, the ball receiving channel 5 of the first plunger 4 is located outside the ball delivery channel, that is, outside the body 1, so as to facilitate the recovery of the wax cleaning balls in the ball receiving channel 5.

[0058] Reset process: After the wax cleaning balls are recovered, the first plunger 4 is controlled to return to the second position II. After it is in place, the second plunger 8 is controlled to move in the opposite direction to generate a pressing force to press out the crude oil sucked into the oil storage chamber 7 and discharge it into the ball receiving channel 5 of the first plunger 4 again. Then the first plunger 4 is controlled to continue to return to the first position I. At this time, the ball receiving channel 5 is connected with the oil delivery channel 2, and the crude oil in the ball receiving channel 5 is discharged to the downstream together with the oil delivery channel 2.

[0059] Therefore, the present invention can realize automatic and accurate recovery of wax cleaning balls, and can recover crude oil on the surface of wax cleaning balls, reduce the amount of oil carried by wax cleaning balls, avoid environmental pollution, and has the characteristics of high ball collection efficiency and easy management.

[0060] According to the above embodiments, during the ball collecting process, when the first plunger 4 is located at the first position I, the wax cleaning ball enters the ball collecting channel 5 of the first plunger 4 and blocks the ball collecting channel 5, and when the first plunger 4 leaves the first position, the column of the first plunger 4 will also block the oil delivery channel 2, causing the upstream pressure of the oil delivery channel 2 to rise, causing the entire pipeline to experience pressure build-up, posing a safety risk.

[0061] The present invention is to solve the above problems. In one embodiment, Figure 5 As shown, a bypass channel 9 is arranged inside the body 1, and the first end of the bypass channel 9 is connected to the upstream of the oil delivery channel 2 via a pressure regulating mechanism 10, and the second end of the bypass channel 9 is connected to the downstream of the oil delivery channel 2, and the pressure regulating mechanism 10 is used to adjust the upstream pressure of the oil delivery channel 2. Specifically, when the pressure in the pipeline is higher than the preset pressure of the pressure regulating mechanism 10, the pressure regulating mechanism 10 is actuated to connect the bypass channel 9 with the oil delivery channel 2, and the crude oil upstream of the oil delivery channel 2 flows to the downstream through the bypass channel 9, so as to realize automatic flow regulation and prevent the pipeline from being pressurized. The specific type of the pressure regulating mechanism 10 of this embodiment of the present invention is not particularly limited, as long as the opening and closing of the bypass channel 9 can be controlled, for example, it can be a pressure regulating valve, a flow regulating valve, etc.

[0062] In one embodiment, Figure 2 , Figure 5 and Figure 8 As shown, the body 1 is provided with a mounting channel 11 for the pressure regulating mechanism 10, and the lower end of the mounting channel 11 ( Figure 5The right end is connected to the upstream of the oil delivery channel 2. The pressure regulating mechanism 10 mainly includes: a valve cover 12, a guide sleeve 13, a guide rod 14, a valve core 15 and a spring 16. Among them, the valve cover 12 is arranged on the top of the body 1, and the guide sleeve 13, the guide rod 14, the valve core 15 and the spring 16 are located in the installation channel 11; part of the guide sleeve 13 extends into the valve cover 12 from the bottom of the valve cover 12, and a first sealing ring 17 is provided between part of the guide sleeve 13 and the valve cover 12 for sliding sealing, and another part of the guide sleeve 13 is provided with a flange 18, and the flange 18 is arranged in the installation groove at the bottom of the valve cover 12; part of the guide rod 14 is slidably arranged vertically in the guide sleeve 13, and a second sealing ring 19 is provided between part of the guide rod 14 and the guide sleeve 13 for sliding sealing, another part of the guide rod 14 is provided with a valve core 15, a spring 16 is provided between the valve core 15 and the flange 18 of the guide sleeve 13, and the valve core 15 is arranged at the first end of the bypass channel 9 for opening and closing the bypass channel 9. When the pressure upstream of the oil delivery channel 2 is greater than the preload force of the spring 16, the valve core 15 is pushed upward, and the valve core 15 opens the first end of the bypass channel 9, and the crude oil in the oil delivery channel 2 flows into the bypass channel 9 to the downstream, realizing automatic flow regulation and preventing the pipeline from being pressurized. In this example, the main body of the valve core 15 is truncated cone-shaped, which is convenient for abutting against the step at the lower end of the installation channel 11. In the initial state, the valve core 15 is pressed against the step to separate the bypass channel 9 from the oil delivery channel 2. When the valve core 15 is pushed open, the bypass channel 9 is connected to the oil delivery channel 2.

[0063] According to an embodiment of the present invention, Figure 1 , Figure 2 and Figure 8As shown, the pressure regulating mechanism 10 of the present invention also includes a connecting rod 20, the first end (lower end) of the connecting rod 20 vertically extends from the top of the valve cover 12 and is connected to the upper end of the guide rod 14, the second end (upper end) of the connecting rod 20 extends to the top of the body 1 and is provided with a first sensing sheet 21, the valve cover 12 is provided with a first bracket 22, the first bracket 22 is provided with a first proximity switch 23 and a second proximity switch 24, the first proximity switch 23 is arranged below the second proximity switch 24, the first proximity switch 23 and the second proximity switch 24 cooperate with the first sensing sheet 21 to detect the opening and closing of the bypass channel 9, thereby realizing incoming ball detection. Specifically, when it is in the initial state and the valve core 15 closes the bypass channel 9, the first sensing plate 21 is located at the first proximity switch 23, and the indicator light of the first proximity switch 23 is on, which shows that there is no wax-clearing ball in the ball receiving channel 5 of the first plunger 4; when the valve core 15 is pushed open and moves upward, it drives the guide rod 14 and the connecting rod 20 to move upward, and at the same time drives the first sensing plate 21 to move to the second proximity switch 24, the indicator light of the first proximity switch 23 is off and the indicator light of the second proximity switch 24 is on, which shows that there is a wax-clearing ball in the ball receiving channel 5 of the first plunger 4. Therefore, in addition to judging whether there is a wax-clearing ball in the ball receiving channel 5 of the first plunger 4 through the pressure change signal of the pressure detection element 3, the present invention can further judge through the indicator light signals of the first proximity switch 23 and the second proximity switch 24. No matter which of the two signals is detected, it indicates that the wax-clearing ball is in place, and then the first plunger 4 is controlled to perform the ball delivery action. Through this setting, the present invention can effectively improve the accuracy of incoming ball detection.

[0064] According to an embodiment of the present invention, Figure 8 As shown, the pressure regulating mechanism 10 of the present invention further includes a preload regulating assembly, which includes: an adjusting rod 25, an adjusting gland 26 and an adjusting screw 27. The adjusting rod 25 is sleeved on the connecting rod 20, and the connecting rod 20 can slide up and down relative to the adjusting rod 25. The adjusting rod 25 is provided with a convex shoulder 28, and the convex shoulder 28 extends from the top of the valve cover 12 to abut against the upper end of the guide sleeve 13. The adjusting gland 26 is sleeved on the adjusting rod 25 and pressed against the convex shoulder 28. The adjusting screw 27 connects the adjusting gland 26 to the top of the valve cover 12. By screwing the adjusting screw 27, the pressing force of the adjusting gland 26 on the convex shoulder 28 of the adjusting rod 25 is controlled, and then the pressing force of the convex shoulder 28 of the adjusting rod 25 on the guide sleeve 13 is controlled, so as to achieve the preload adjustment of the spring 16, and then achieve the matching with the normal working pressure of the pipeline.

[0065] According to an embodiment of the present invention, Figure 1-Figure 4As shown, the ball delivery mechanism also includes a first driving device 29, the driving end of the first driving device 29 is connected to the outer end of the first plunger 4, and the driving end of the first driving device 29 is provided with a second sensing sheet 30, and the fixed end of the first driving device 29 is provided with a third proximity switch 31, a fourth proximity switch 32 and a fifth proximity switch 33 matched with the second sensing sheet 30, which are used to detect the first position I, the second position II and the third position III respectively. Specifically, when the first driving device 29 drives the first plunger 4 to move back and forth, the second sensing sheet 30 is driven to move accordingly, when the second sensing sheet 30 moves to the third proximity switch 31, the indicator light of the third proximity switch 31 is on, to indicate that the ball receiving channel 5 of the first plunger 4 is located at the first position I, when the second sensing sheet 30 moves to the fourth proximity switch 32, the indicator light of the fourth proximity switch 32 is on, to indicate that the ball receiving channel 5 of the first plunger 4 is located at the second position II, when the second sensing sheet 30 moves to the fifth proximity switch 33, the indicator light of the fifth proximity switch 33 is on, to indicate that the ball receiving channel 5 of the first plunger 4 is located at the third position III.

[0066] The specific type of the first driving device 29 of the present invention is not particularly limited, as long as it can drive the first plunger 4 to reciprocate, for example, it can be a cylinder, an electric push rod, a hydraulic cylinder, a screw lift, etc.

[0067] In one example, the first driving device 29 is a screw lift, the outer wall of the first plunger 4 is provided with a sheath 34 to protect the first plunger 4, the left end of the sheath 34 is fixed to the side of the body 1 through a flange, the left end of the fixing seat of the screw lift is connected to the right end of the sheath 34 through a flange, and the right end of the fixing seat is provided with a first shield 35, the screw of the screw lift is arranged horizontally, the first end of the screw of the screw lift is connected to the outer end of the first plunger 4, the second end of the screw extends into the first shield 35 and is connected to the second sensor sheet 30, the first shield 35 is provided with a second bracket 36 arranged side by side with the screw, and the second bracket 36 is provided with a third proximity switch 31, a fourth proximity switch 32 and a fifth proximity switch 33 in sequence from right to left. The second sensor sheet 30, the third proximity switch 31, the fourth proximity switch 32 and the fifth proximity switch 33 are protected by the first shield 35.

[0068] According to an embodiment of the present invention, Figure 4As shown, the oil suction and discharge mechanism also includes a second driving device 37, the driving end of the second driving device 37 is connected to the second plunger 8, and the driving end of the second driving device 37 is provided with a third sensing sheet 38, and the fixed end of the second driving device 37 is provided with a sixth proximity switch 39 and a seventh proximity switch 40 that cooperate with the third sensing sheet 38 to prompt the oil suction and discharge process. Specifically, the sixth proximity switch 39 is located below the seventh proximity switch 40. When the second driving device 37 drives the second plunger 8 to move back and forth, the third sensing sheet 38 is driven to move accordingly. When the third sensing sheet 38 moves from the sixth proximity switch 39 to the seventh proximity switch 40, that is, the indicator light of the sixth proximity switch 39 is off and the indicator light of the seventh proximity switch 40 is on, to prompt that the second plunger 8 moves upward, which is the oil discharge process, and vice versa, it is the oil suction process.

[0069] The specific type of the second driving device 37 of the present invention is not particularly limited, as long as it can drive the second plunger 8 to reciprocate, for example, it can be a cylinder, an electric push rod, a hydraulic cylinder, a screw lift, etc.

[0070] In one example, the second driving device 37 is a screw lift, the fixing seat of the screw lift is fixed to the bottom of the oil storage chamber 7, the bottom of the fixing seat is provided with a second shield 41, the screw of the screw lift is arranged vertically, the upper end of the screw extends into the oil storage chamber 7 and is connected to the second plunger 8, the lower end of the screw extends into the second shield 41 and is connected to the third sensor sheet 38, the second shield 41 is provided with a third bracket 42 arranged side by side with the screw, and the third bracket 42 is provided with a sixth proximity switch 39 and a seventh proximity switch 40 at intervals. The first shield 35 protects the third sensor sheet 38, the sixth proximity switch 39, the seventh proximity switch 40 and other components.

[0071] According to an embodiment of the present invention, Figure 1 and Figure 2 As shown, a ball taking mechanism for recovering wax cleaning balls is provided on the outside of the machine body 1. The ball taking mechanism and the first driving device 29 are arranged on the left and right sides of the machine body 1 opposite to each other. The ball taking mechanism mainly includes a ball pushing device 43, a ball collecting basket 44 and an oil collecting tank 45. The ball pushing device 43 pushes the wax cleaning balls into the ball collecting basket 44 for storage. The oil collecting tank 45 is located below the ball collecting basket 44. When the first plunger 4 is located at the third position III, that is, the first plunger 4 sends the wax cleaning balls to the outside of the machine body 1, at this time, it is a normal pressure environment, and the wax cleaning balls are pushed into the ball collecting basket 44 by the ball pushing device 43. Since the ball collecting basket 44 itself has gaps or holes, when the oil suction and discharge mechanism does not absorb oil sufficiently, a small amount of crude oil will be carried on the surface of the wax cleaning balls. At this time, a small amount of crude oil on the surface of the wax cleaning balls drips into the oil collecting tank 45 through the gaps or holes for recovery, so as to further clean the wax cleaning balls.

[0072] In one embodiment, a third protective cover 46 is provided on the ball receiving basket 44 .

[0073] The specific type of the ball pushing device 43 of the present invention is not particularly limited. In some embodiments, the ball pushing device 43 can be a pneumatic cylinder, an electric push rod, a hydraulic cylinder, etc., and the wax cleaning ball in the ball receiving channel 5 of the first plunger 4 is pushed out by the pneumatic rod of the pneumatic cylinder, the push rod of the electric push rod, and the piston rod of the hydraulic cylinder.

[0074] In one embodiment, the ball pushing device 43 may also be a robot, which is used to take out the wax cleaning balls in the ball receiving channel 5 of the first plunger 4 and put them into the ball receiving basket 44 .

[0075] In the present example, Figure 3 As shown, the ball pushing device 43 is arranged at the rear side of the machine body 1, and the ball pushing device 43 includes a fourth shield 47, and a fourth bracket 48, a third driving device (not shown in the figure), a fourth sensor sheet 49, a first push rod 50, a second push rod 51, a guide block 52 and an eighth proximity switch 53 are arranged in the fourth shield 47. Among them, the fourth bracket 48 is arranged along the front-to-back direction, and the front end of the fourth bracket 48 is installed on the machine body 1, the third driving device is fixed to the right side of the rear end of the fourth bracket 48, the driving end of the third driving device penetrates the fourth bracket 48 and extends to the left side of the fourth bracket 48 and is connected to the first end of the fourth sensor sheet 49, the second end of the fourth sensor sheet 49 is hinged to the first end of the first push rod 50, the second end of the first push rod 50 is hinged to the first end of the second push rod 51, the second end of the second push rod 51 extends into the guide hole of the guide block 52 and can be telescopically slidable in the guide hole, the guide block 52 is arranged on the left side of the front end of the fourth bracket 48, and the eighth proximity switch 53 is arranged on the rear side of the fourth shield 47. The fourth sensing sheet 49 is driven to rotate by the third driving device, driving the first push rod 50 to swing, and then driving the second push rod 51 to telescope and reciprocate in the guide block 52, and the wax cleaning ball in the ball receiving channel 5 of the first plunger 4 is pushed out by the second push rod 51, and when the fourth sensing sheet 49 rotates to the detection range of the eighth proximity switch 53, the indicator light of the eighth proximity switch 53 is on. Specifically, when the ball pushing device 43 is in the initial state, the fourth sensing sheet 49 is close to the eighth proximity switch 53, and the indicator light of the eighth proximity switch 53 is on. During the process of the third driving device driving the second push rod 51 to extend and push the ball, the fourth sensing sheet 49 is away from the eighth proximity switch 53, and the indicator light of the eighth proximity switch 53 is off. When the ball pushing is completed, that is, the second push rod 51 is reset and retracted to the initial state, the indicator light of the eighth proximity switch 53 is on. Therefore, the indicator light of the eighth proximity switch 53 can be used to judge that the ball pushing mechanism has completed a ball pushing process.

[0076] It can be understood that the material of each induction sheet of the present invention is metal; and the third driving device can be a motor.

[0077] In one embodiment, Figure 4As shown, the inner wall of the ball delivery channel of the present invention is provided with three sealing rings at intervals for sliding sealing; wherein, a third sealing ring 54 is provided at the outer end of the first position I, a fourth sealing ring 55 is provided between the first position I and the second position II, and a fifth sealing ring 56 is provided at the outer end of the second position II. On the one hand, it can prevent the crude oil from leaking inside and outside the body 1, and on the other hand, it can seal and separate the areas of the first position I and the second position II respectively to prevent the crude oil from leaking into the area.

[0078] In one embodiment, dustproof rings 57 are respectively provided at both ends of the inner wall of the ball delivery channel of the present invention to prevent dust.

[0079] According to an embodiment of the present invention, Figure 1 and Figure 4 As shown, the oil delivery channel 2 is arranged along the front and rear sides of the machine body 1, the ball delivery channel is arranged along the left and right sides of the machine body 1, the oil suction and discharge mechanism is arranged at the bottom of the machine body 1, the bottom of the ball receiving channel 5 of the first plunger 4 is provided with a first oil hole 58, and the bottom of the machine body 1 corresponding to the second position II is provided with a second oil hole 59 matched with the first oil hole 58, and the second oil hole 59 is connected with the oil storage chamber 7. When the ball receiving channel 5 of the first plunger 4 is located at the second position II, the first oil hole 58 of the ball receiving channel 5 of the first plunger 4 is connected with the oil storage chamber 7 through the second oil hole 59. In the process of collecting the balls, the crude oil can enter the oil storage chamber 7 through the suction force generated by the second plunger 8 and the gravity of the crude oil itself.

[0080] In addition, the intelligent ball collecting machine of the present invention further comprises a control box 60, which is mainly connected to various driving devices and various proximity switches and other components for controlling the automatic operation of the entire machine.

[0081] In addition, the intelligent ball collecting machine of the present invention further comprises a frame 61 , and components such as a control box 60 , a machine body 1 and a ball collecting mechanism are all integrated and mounted on the frame 61 .

[0082] Based on the above embodiments, the working principle of the intelligent ball collecting machine provided by the present invention is further described below, which mainly includes a ball collecting process and a resetting process.

[0083] Ball receiving process: the wax-clearing balls from the single well pipeline enter the collection pipeline and enter the oil delivery channel 2 of the body 1 along with the crude oil. The first plunger 4 is located at the first position I (initial state), the indicator lights of the first proximity switch 23, the third proximity switch 31, the seventh proximity switch 40 and the eighth proximity switch 53 are on, and the ball receiving channel 5 of the first plunger 4 is located in the oil delivery channel 2 and is connected to the oil delivery channel 2. When the wax-clearing ball enters the ball receiving channel 5 of the first plunger 4, it blocks the ball receiving channel 5, causing the upstream pressure of the oil delivery channel 2 of the body 1 to increase, and the pressure detection element 3 detects the pressure change, and the valve core 15 of the pressure regulating mechanism 10 is pushed open, opening the bypass channel 9. At this time, the first sensing plate 21 moves upward, the indicator light of the second proximity switch 24 is on, and the crude oil in the upstream of the oil delivery channel 2 is introduced into the downstream through the bypass channel 9. The upstream pressure drops to a stable level. Regardless of whether the control box 60 detects the pressure increase or the indicator light signal of the second proximity switch 24 is on, it can be determined that the wax cleaning ball has entered the ball receiving channel 5 of the first plunger 4, and then controls the first driving device 29 to drive the first plunger 4 to start moving left to the second plunger 4. Position II, driving the second sensing plate 30 to move from the third proximity switch 31 to the fourth proximity switch 32, the indicator light of the fourth proximity switch 32 is on, and the control box 60 sets the dwell time to make the first plunger 4 stay for a period of time. At this time, the first oil hole 58 of the ball receiving channel 5 of the first plunger 4 is connected to the oil storage chamber 7 through the second oil hole 59, and the second driving device 37 is controlled to drive the second plunger 8 to move from top to bottom to generate suction force, so as to suck the crude oil in the ball receiving channel 5 into the oil storage chamber 7. At the same time, the third sensing plate 38 moves from the seventh proximity switch 40 to The sixth proximity switch 39, when the indicator light of the sixth proximity switch 39 is on, it is judged that the oil suction is finished, and the first plunger 4 is continued to be controlled to move left to the third position III, driving the second sensor plate 30 to move from the fourth proximity switch 32 to the fifth proximity switch 33, the indicator light of the fifth proximity switch 33 is on, and the ball pushing device 43 is controlled to push the wax cleaning ball into the ball collecting basket 44, and the indicator light of the eighth proximity switch 53 generates a light-off-light signal, completing one ball pushing, and the residual oil on the surface of the wax cleaning ball drips into the oil collecting tank 45 through the gaps or holes in the ball collecting basket 44.

[0084] Reset process: After the ball push recovery is completed, the first plunger 4 is controlled to return to the second position II, driving the second sensor plate 30 to return from the fifth proximity switch 33 to the fourth proximity switch 32, and the indicator light of the fourth proximity switch 32 is on. Similarly, the dwell time is set to make the first plunger 4 stay for a period of time, and the second plunger 8 is controlled to move upward in the opposite direction to generate a pressing force to press out the crude oil sucked into the oil storage chamber 7 and re-discharge it into the ball receiving channel 5 of the first plunger 4. At this time, the third sensor plate 38 moves from the sixth proximity switch 39 to the seventh proximity switch 40. When the indicator light of the seventh proximity switch 40 is on, After judging that the oil discharge is finished, the first plunger 4 is controlled to continue to return to the first position I, driving the second sensor plate 30 to return from the fourth proximity switch 32 to the third proximity switch 31, and the indicator light of the third proximity switch 31 is on. At this time, the ball receiving channel 5 is connected with the oil delivery channel 2 again, and the valve core 15 of the pressure regulating mechanism 10 is reset, closing the bypass channel 9, driving the first sensor plate 21 to return from the second proximity switch 24 to the first proximity switch 23, and the indicator light of the first proximity switch 23 is on. At this time, the crude oil in the ball receiving channel 5 of the first plunger 4 can be discharged to the downstream together with the oil delivery channel 2. Through the reciprocating cycle of the above process, the recovery of multiple wax cleaning balls is realized.

[0085] In summary, the intelligent ball collecting machine provided by the present invention can realize incoming ball detection, automatic flow adjustment, automatic ball collection, automatic recovery of excess oil in the ball collecting channel and normal pressure ball storage, and thus can realize the precise automatic recovery of wax cleaning balls, statistics on the number of collected balls, and reduce oil emissions, and can effectively reduce the cost and work intensity of wax cleaning pipe ball collection operations, improve ball collection management capabilities and dynamic operation supervision capabilities, and achieve the purpose of big data analysis and networking management of ball collection data.

[0086] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention 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 embodiments of the present invention.

Claims

1. An intelligent ball collecting machine, characterized in that: include: A machine body, wherein the machine body is provided with an oil delivery channel and a ball delivery channel which intersect and communicate with each other, and a pressure detection element is provided upstream of the oil delivery channel; A ball delivery mechanism is arranged on the machine body and comprises a first plunger, the first plunger can slide back and forth in the ball delivery channel, and the inner end of the first plunger is provided with a ball receiving channel; A ball blocking rod is arranged at the downstream of the oil delivery channel, and is used to block the wax cleaning balls entering through the upstream of the oil delivery channel so that the balls are located in the ball receiving channel; An oil suction and discharge mechanism is arranged on the machine body, comprising an oil storage chamber and a second plunger, wherein the second plunger is reciprocatingly slidably arranged in the oil storage chamber to form a suction force or a pressure discharge force in the oil storage chamber; The first plunger is suitable for switching between a plurality of positions. When the inner end of the first plunger is located at a first position in the ball delivery channel, the ball receiving channel is located in the oil delivery channel and is connected to the oil delivery channel. When the inner end of the first plunger is located at a second position in the ball delivery channel, the ball receiving channel is connected to the oil storage chamber. When the inner end of the first plunger is located at a third position, the ball receiving channel is located outside the ball delivery channel to recover the wax cleaning balls in the ball receiving channel. A bypass channel is provided in the body, a first end of the bypass channel is connected to the upstream of the oil delivery channel via a pressure regulating mechanism, a second end of the bypass channel is connected to the downstream of the oil delivery channel, and the pressure regulating mechanism is used to regulate the upstream pressure of the oil delivery channel; The pressure regulating mechanism comprises: a valve cover, a guide sleeve, a guide rod, a valve core and a spring, wherein the valve cover is arranged on the body, a portion of the guide sleeve extends into the valve cover from the bottom of the valve cover, a portion of the guide rod is slidably arranged in the guide sleeve, another portion of the guide rod is provided with the valve core, a spring is arranged between the valve core and another portion of the guide sleeve, and the valve core is arranged at the first end of the bypass flow channel for opening and closing the bypass flow channel; The outer side of the machine body is provided with a ball taking mechanism for recovering the wax cleaning balls, the ball taking mechanism comprises a ball pushing device, a ball collecting basket and an oil collecting box, the ball pushing device pushes the wax cleaning balls into the ball collecting basket, and the oil collecting box is located below the ball collecting basket.

2. The intelligent ball collecting machine according to claim 1, characterized in that: The pressure regulating mechanism also includes a connecting rod, the first end of which extends from the top of the valve cover and is connected to the guide rod, the second end of the connecting rod is provided with a first sensor plate, and the valve cover is provided with a first proximity switch and a second proximity switch that cooperate with the first sensor plate to detect the opening and closing of the bypass channel.

3. The intelligent ball collecting machine according to claim 2, characterized in that: The pressure regulating mechanism also includes: an adjusting rod, an adjusting cover and an adjusting screw. The adjusting rod is sleeved on the connecting rod. The adjusting rod is provided with a boss, and the boss extends from the top of the valve cover and abuts against part of the guide sleeve. The adjusting cover is sleeved on the adjusting rod and pressed against the boss, and the adjusting screw connects the adjusting cover to the top of the valve cover.

4. The intelligent ball collecting machine according to claim 1, characterized in that: The ball feeding mechanism also includes a first driving device, a driving end of which is connected to the outer end of the first plunger, and a second sensing sheet is provided at the driving end of the first driving device, and a third proximity switch, a fourth proximity switch and a fifth proximity switch are provided at the fixed end of the first driving device, which cooperate with the second sensing sheet and are used to detect the first position, the second position and the third position respectively.

5. The intelligent ball collecting machine according to claim 1, characterized in that: The oil suction and discharge mechanism also includes a second driving device, a driving end of which is connected to the second plunger, and a third sensing sheet is provided at the driving end of the second driving device, and a sixth proximity switch and a seventh proximity switch matched with the third sensing sheet are provided at the fixed end of the second driving device.

6. The intelligent ball collecting machine according to claim 1, characterized in that: The oil delivery channel and the ball delivery channel are arranged on the side of the body, the oil suction and discharge mechanism is arranged at the bottom of the body, a first oil hole is arranged at the bottom of the ball receiving channel, and a second oil hole matching the first oil hole is arranged at the bottom of the body corresponding to the second position, and the second oil hole is communicated with the oil storage chamber.

7. The intelligent ball collecting machine according to any one of claims 1 to 6, characterized in that: It also includes a control box, which is used to control the entire machine operation.

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