Air control interlocking oil pump clutch control system

Abstract

The utility model relates to the technical field of air pressure transmission, and particularly discloses an air control interlocking oil pump clutch control system which comprises a first oil pump clutch, a second oil pump clutch, an air source, a hydraulic control box control end and a driller box control end, and the hydraulic control box control end and the driller box control end are respectively connected with the air source. The driller box control end is connected with the hydraulic control box control end, and the hydraulic control box control end is connected with the first oil pump clutch and the second oil pump clutch. By means of connection of the three-position four-way manual reversing valve, the two-position three-way pneumatic control reversing valve and the shuttle valves, interlocking of pneumatic control is achieved, separation and reunion of the two oil pumps are controlled respectively, the situation that the two oil pumps are started when the two oil pumps are separated and recombined is avoided, the clutch control device can be applied to various working environments, convenience and safety of disassembly and assembly are facilitated, and the clutch control device is suitable for popularization and application. The hydraulic control box control end and the driller box control end are respectively connected with the air source, so that the hydraulic control box control end and the driller box control end can be conveniently adjusted at any time, and stable operation of equipment is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of pneumatic transmission, in particular to a pneumatically controlled interlocking oil pump clutch control system. Background Art

[0002] Well repair is an important part of the construction of oil and natural gas exploration and development. Oil, gas and water wells may fail at any time during the process of self-flowing, oil pumping or water and gas injection, resulting in reduced or even shutdown of oil wells. Or, during the operation, downhole oil production equipment may fail. After the failure occurs, downhole operations are needed to eliminate the fault, replace equipment, adjust oil well parameters, etc., to restore normal production of the oil well. Downhole operations are an important measure for stabilizing oil field production, and well repair rigs are key equipment for well repair.

[0003] In recent years, well repair rigs often use pneumatic and hydraulic combined systems, which use pneumatics as control by taking advantage of the pneumatics' sensitive and fast response characteristics, and use hydraulics as execution by taking advantage of the hydraulics' stable operation and ability to generate greater thrust. At present, the dual oil pump clutch of the existing vehicle-mounted drilling and repair rigs uses pneumatic transmission control, and it is necessary to equip the hydraulic control box and the driller's room with control ends for controlling the oil pump clutch, and to select and control one of the oil pumps to participate in the work through air circuit valves. When there are air circuit valves for controlling the clutches of the two oil pumps in the hydraulic control box and the driller's room at the same time, it is necessary to ensure that when the hydraulic control box oil pump clutch control end is operated, the driller's room oil pump clutch control end loses its function; conversely, it is necessary to ensure that when the driller's room oil pump clutch control end is operated, the hydraulic control box oil pump clutch control end loses its function. In the prior art, for dual oil pump well repair rigs, electric control is often used to select to control the two oil pump clutches separately, which is costly and requires higher explosion-proof requirements.

[0004] Therefore, it is necessary to propose a gas-controlled interlocking oil pump clutch control system to overcome the defects of the prior art. Utility Model Content

[0005] The utility model aims to solve the problems in the prior art and provide a gas-controlled interlocking oil pump clutch control system.

[0006] The technical solution of the utility model is:

[0007] A gas-controlled interlocked oil pump clutch control system includes a first oil pump clutch and a second oil pump clutch, and also includes an air source, a hydraulic control box control end and a driller box control end. The hydraulic control box control end and the driller box control end are respectively connected to the air source, the driller box control end is connected to the hydraulic control box control end, and the hydraulic control box control end is respectively connected to the first oil pump clutch and the second oil pump clutch.

[0008] Preferably, the control end of the hydraulic control box includes a first control valve, an oil pump clutch control end 1, a shuttle valve 1 and a shuttle valve 2, the air inlet of the first control valve is connected to the air source, the air outlet of the first control valve is connected to the air inlet of the oil pump clutch control end 1, one of the air inlets of shuttle valve 1 and one of the air inlets of shuttle valve 2 are respectively connected to the air outlet of the oil pump clutch control end 1, the air outlet of shuttle valve 1 is connected to the first oil pump clutch, and the air outlet of shuttle valve 2 is connected to the second oil pump clutch.

[0009] Preferably, the driller box control end includes a second control valve and an oil pump clutch control end 2, the air inlet of the second control valve is connected to the air source, the air outlet of the second control valve is connected to the air inlet of the oil pump clutch control end 2, and the other air inlet of shuttle valve 1 and the other air inlet of shuttle valve 2 are respectively connected to the air outlet of the oil pump clutch control end 2.

[0010] Preferably, the control end of the hydraulic control box also includes shuttle valve three and shuttle valve four, the air outlet of shuttle valve three is connected to the air control port of the first control valve, the air outlet of shuttle valve four is connected to the air control port of the second control valve, and the air inlets of shuttle valve three and shuttle valve four are respectively connected to the pipeline between the oil pump clutch control end one and the oil pump clutch control end two.

[0011] Preferably, the first control valve and the second control valve are two-position three-way pneumatically controlled reversing valves.

[0012] Preferably, the oil pump clutch control terminal 1 and the oil pump clutch control terminal 2 adopt a three-position four-way manual reversing valve.

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

[0014] The utility model realizes the interlocking of the pneumatic control through the connection between the three-position four-way manual reversing valve, the two-position three-way pneumatic control reversing valve and a plurality of shuttle valves, and then realizes the separate control of the clutch of the two oil pumps, so as to avoid the situation that the two oil pumps are started at the same time when they are clutched, and can be used in various working environments, which is conducive to the convenience and safety of disassembly and assembly. The two control ends of the hydraulic control box control end and the driller box control end are respectively connected to the air source, which is convenient for adjusting the hydraulic control box control end and the driller box control end at any time, which is conducive to the stable operation of the equipment and reduces the workload of the operating personnel. The overall manufacturing and installation cost is low, the installation and adjustment are convenient, the safety is high, and it is easy to promote. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the utility model.

[0016] Among them, 1. The first oil pump clutch; 2. The second oil pump clutch; 3. The air source; 4. The control end of the hydraulic control box; 41. The first control valve; 42. The oil pump clutch control end one; 43. The shuttle valve one; 44. The shuttle valve two; 45. The shuttle valve three; 46. The shuttle valve four; 5. The driller box control end; 51. The second control valve; 52. The oil pump clutch control end two. DETAILED DESCRIPTION

[0017] In order to make the technical means, technical features, utility model objectives and technical effects achieved by the utility model easy to understand, the utility model is further explained below with reference to specific illustrations.

[0018] like Figure 1 As shown, a gas-controlled interlocked oil pump clutch control system includes a first oil pump clutch 1 and a second oil pump clutch 2, and also includes an air source 3, a hydraulic control box control end 4 and a driller box control end 5. The air source 3 is used to provide compressed air. The hydraulic control box control end 4 and the driller box control end 5 are respectively connected to the air source 3. The air source 3 supplies compressed air to the hydraulic control box control end 4 and the driller box control end 5 respectively. The driller box control end 5 and the hydraulic control box control end 4 are interconnected to form a chain-link interlocking control structure. The hydraulic control box control end 4 is respectively connected to the first oil pump clutch 1 and the second oil pump clutch 2, and can perform load control and remote feedback control at the same time, so as to achieve the purpose of disabling the second oil pump clutch 2 / first oil pump clutch 1 while selecting to control the first oil pump clutch 1 / the second oil pump clutch 2.

[0019] like Figure 1As shown, the control end 4 of the hydraulic control box includes a first control valve 41, an oil pump clutch control end 1 42, a shuttle valve 1 43 and a shuttle valve 2 44, and the control end 5 of the driller box includes a second control valve 51 and an oil pump clutch control end 2 52. The first control valve 41 and the oil pump clutch control end 1 42 are connected in series, and the second control valve 51 and the oil pump clutch control end 2 52 are connected in series. The air inlet of the first control valve 41 is connected to the air source 3, and the air outlet of the first control valve 41 is connected to the air inlet of the oil pump clutch control end 1 42. The air inlet of the second control valve 51 is connected to the air source 3, and the air outlet of the second control valve 51 is connected to the air inlet of the oil pump clutch control end 2 52. The shuttle valve 1 43 and the shuttle valve 2 44 are connected in parallel with each other. Between the oil pump clutch control end 1 42 and the oil pump clutch control end 2 52, specifically, the two air outlets of the oil pump clutch control end 1 42 and the two air outlets of the oil pump clutch control end 2 52 are connected through an air pipe, the shuttle valve 1 43 is connected to the pipeline between one air outlet of the oil pump clutch control end 1 42 and one air outlet of the oil pump clutch control end 2 52, the shuttle valve 2 44 is connected to the pipeline between the other air outlet of the oil pump clutch control end 1 42 and the other air outlet of the oil pump clutch control end 2 52, the air outlet of the shuttle valve 1 43 is connected to the first oil pump clutch 1, and the air outlet of the shuttle valve 2 44 is connected to the second oil pump clutch 2, so as to control the first oil pump clutch 1 and the second oil pump clutch 2 respectively.

[0020] like Figure 1 As shown, the control end 4 of the hydraulic control box also includes a shuttle valve three 45 and a shuttle valve four 46. The two air inlets of the shuttle valve three 45 and the shuttle valve four 46 are respectively connected to the pipelines between the two air outlets of the oil pump clutch control end one 42 and the two air outlets of the oil pump clutch control end two 52. The air outlet of the shuttle valve three 45 is connected to the air control port of the first control valve 41 for controlling the on-off of the first control valve 41. The air outlet of the shuttle valve four 46 is connected to the air control port of the second control valve 51 for controlling the on-off of the second control valve 51.

[0021] like Figure 1 As shown, the first control valve 41 and the second control valve 51 adopt two-position three-way air-controlled reversing valves, which are controlled on and off by shuttle valve three 45 and shuttle valve four 46 respectively, and the oil pump clutch control terminal one 42 and the oil pump clutch control terminal two 52 adopt three-position four-way manual reversing valves.

[0022] The working principle of the utility model is:

[0023] The compressed air is supplied from the air source 3 to the oil pump clutch control end 1 42 through the first control valve 41, and the oil pump clutch control end 1 42 is operated to connect the first control valve 41 with the right working position of the oil pump clutch control end 1 42. At this time, the compressed air is connected to the first oil pump clutch 1 through the shuttle valve 1 43 to control the first oil pump clutch 1, or the oil pump clutch control end 1 42 is operated to connect the first control valve 41 with the left working position of the oil pump clutch control end 1 42. At this time, the compressed air is connected to the second oil pump clutch 2 through the shuttle valve 2 44 to control the first oil pump clutch 1; at the same time, the compressed air will be connected to the air control port of the second control valve 51 through the shuttle valve 4 46, pushing the second control valve 51 to switch from the right working position to the left working position, that is, the second control valve 51 changes from the closed state to the open state, and the compressed air cannot reach the oil pump clutch control end 2 52 through the second control valve 51, making the oil pump clutch control end 2 52 invalid;

[0024] On the contrary, compressed air is supplied from the air source 3 to the oil pump clutch control terminal 2 52 through the second control valve 51, and the oil pump clutch control terminal 2 52 is operated to connect the second control valve 51 with the left working position of the oil pump clutch control terminal 2 52, and the compressed air is connected to the second oil pump clutch 2 through the shuttle valve 2 44 to control the second oil pump clutch 2, or the oil pump clutch control terminal 2 52 is operated to connect the second control valve 51 with the right working position of the oil pump clutch control terminal 2 52, and the compressed air is connected to the first oil pump clutch 1 through the shuttle valve 1 43 to control the first oil pump clutch 1; at the same time, the compressed air will be connected to the air control port of the first control valve 41 through the shuttle valve 3 45, pushing the first control valve 41 to switch from the left working position to the right working position, that is, the first control valve 41 changes from the closed state to the open state, making the oil pump clutch control terminal 1 42 invalid;

[0025] The on-off of the first control valve 41 and the second control valve 51 are controlled in the above two operation modes, so as to realize the control of the pneumatic interlocking of the first oil pump clutch 1 and the second oil pump clutch 2, and avoid the situation that the first oil pump clutch 1 and the second oil pump clutch 2 are started at the same time.

[0026] The above description is only a preferred embodiment of the utility model, and is not intended to limit the scope of implementation of the utility model. That is, all equivalent changes and modifications made according to the content of the patent application scope of the utility model should belong to the technical scope of the utility model.

Claims

1. A gas-controlled interlocked oil pump clutch control system, comprising a first oil pump clutch (1) and a second oil pump clutch (2), characterized in that: It also comprises an air source (3), a hydraulic control box control end (4) and a driller box control end (5), wherein the hydraulic control box control end (4) and the driller box control end (5) are respectively connected to the air source (3), the driller box control end (5) is connected to the hydraulic control box control end (4), and the hydraulic control box control end (4) is respectively connected to the first oil pump clutch (1) and the second oil pump clutch (2).

2. The gas-controlled interlocked oil pump clutch control system according to claim 1, characterized in that: The control end (4) of the hydraulic control box comprises a first control valve (41), an oil pump clutch control end 1 (42), a shuttle valve 1 (43) and a shuttle valve 2 (44); an air inlet of the first control valve (41) is connected to an air source (3); an air outlet of the first control valve (41) is connected to an air inlet of the oil pump clutch control end 1 (42); one of the air inlets of the shuttle valve 1 (43) and one of the air inlets of the shuttle valve 2 (44) are respectively connected to an air outlet of the oil pump clutch control end 1 (42); an air outlet of the shuttle valve 1 (43) is connected to the first oil pump clutch (1); and an air outlet of the shuttle valve 2 (44) is connected to the second oil pump clutch (2).

3. The gas-controlled interlocked oil pump clutch control system according to claim 2, characterized in that: The driller box control end (5) comprises a second control valve (51) and an oil pump clutch control end 2 (52); an air inlet of the second control valve (51) is connected to an air source (3); an air outlet of the second control valve (51) is connected to an air inlet of the oil pump clutch control end 2 (52); another air inlet of the shuttle valve 1 (43) and another air inlet of the shuttle valve 2 (44) are respectively connected to an air outlet of the oil pump clutch control end 2 (52).

4. The gas-controlled interlocked oil pump clutch control system according to claim 3, characterized in that: The control end (4) of the hydraulic control box further comprises a shuttle valve three (45) and a shuttle valve four (46), wherein the air outlet of the shuttle valve three (45) is connected to the air control port of the first control valve (41), and the air outlet of the shuttle valve four (46) is connected to the air control port of the second control valve (51), and the air inlets of the shuttle valve three (45) and the shuttle valve four (46) are respectively connected to the pipeline between the oil pump clutch control end one (42) and the oil pump clutch control end two (52).

5. The gas-controlled interlocked oil pump clutch control system according to claim 3, characterized in that: The first control valve (41) and the second control valve (51) are two-position three-way pneumatically controlled reversing valves.

6. The gas-controlled interlocked oil pump clutch control system according to claim 3, characterized in that: The oil pump clutch control end 1 (42) and the oil pump clutch control end 2 (52) adopt a three-position four-way manual reversing valve.

Images