A centralized automatic water supplementing and spraying device for multiple mud pumps

Abstract

This utility model relates to the field of oil drilling equipment technology, and in particular discloses a centralized automatic water replenishment and spraying device for multiple mud pumps. It includes a PLC controller, a water storage tank, a water tanker truck, a water pump, and a mud pump water tank. The two ends of the water pump are connected to the inlet and outlet pipes of the water storage tank, respectively. The water tanker truck is connected to the inlet pipe of the water pump, and the mud pump water tank is connected to the outlet pipe of the water pump. Each component's connecting water pipe is equipped with an electric ball valve. Level transmitters are installed in the water storage tank, water tanker truck, and mud pump water tank. The level transmitters and electric ball valves are all connected to the PLC controller. This utility model monitors the water level using the level transmitters and transmits the level data to the PLC controller. The PLC controller controls the opening and closing of the electric ball valves to achieve automatic water replenishment to the mud pump and water storage tank, ensuring the normal operation of the cylinder liner and piston, ensuring the safety of drilling operations, and reducing the labor intensity of workers.

Description

Technical Field

[0001] This utility model relates to the field of oil drilling equipment technology, and in particular to a centralized automatic water replenishment and spraying device for multiple mud pumps. Background Technology

[0002] In oil drilling engineering, the mud pump, as the core equipment of the drilling rig, delivers drilling fluid to the bottom of the well through a high-pressure manifold in the circulation system. It functions to cool the drill bit, clean the well bottom, break rocks, carry cuttings, and balance formation pressure. The mud pump's function is achieved by the piston rod driving the piston in reciprocating motion within the cylinder liner. To achieve the required drilling pressure and circulation flow, the piston rod and piston need to perform high-speed reciprocating motion within the cylinder liner. The frequent friction between the piston and the cylinder liner generates a large amount of heat. If this heat is not cooled in time, it will significantly reduce the service life of the cylinder liner and piston. Existing mud pump spraying systems use a single spray pump to directly draw clean water from a water tank. The spray pump outlet is connected to a spray pipeline, and cooling water is sprayed into each cylinder liner through nozzles on the spray pipeline. In high-temperature regions, the hot and dry environment combined with high-load flushing spraying operations causes the cooling water in the water tank to evaporate very quickly. If there is insufficient cooling water for flushing or the flow rate is inadequate, the cylinder liner and piston will burn out due to high temperatures in a very short time, severely affecting their service life. Currently, at drilling sites, at least two mud pump units are equipped, and the replenishment of cooling water to the spray tanks is done manually. Moreover, in high-temperature areas, the cooling water evaporates quickly, requiring workers to frequently replenish the tanks in a short period of time, resulting in high labor intensity. If water replenishment is not timely, cylinder liners and pistons may burn out, leading to drilling shutdown.

[0003] Therefore, it is necessary to propose an improvement to overcome the shortcomings of the existing technology. Summary of the Invention

[0004] The purpose of this invention is to solve the problems in the prior art by providing a centralized automatic water replenishment and spraying device for multiple mud pumps, thereby solving the problem of water replenishment for mud pumps during oil drilling.

[0005] The technical solution of this utility model is:

[0006] A centralized automatic water replenishment and spraying device for multiple mud pumps includes a PLC controller, a water storage tank, a water tanker truck, a water pump, and a mud pump water tank. The two ends of the water pump are connected to the inlet pipe and outlet pipe of the water storage tank, respectively. The water tanker truck is connected to the inlet pipe of the water pump, and the mud pump water tank is connected to the outlet pipe of the water pump. Each component is equipped with an electric ball valve on its connecting water pipe. The water storage tank, the water tanker truck, and the mud pump water tank are all equipped with level transmitters. The level transmitters and the electric ball valves are all connected to the PLC controller.

[0007] As a preferred technical solution, a monitor is also included, which is connected to the PLC controller.

[0008] As a preferred technical solution, the monitor is equipped with a touch screen.

[0009] As a preferred technical solution, the monitor is equipped with an alarm.

[0010] As a preferred technical solution, the mud pump water tank includes at least two units, namely a first mud pump water tank and a second mud pump water tank.

[0011] As a preferred technical solution, the electric ball valve includes a first electric ball valve, a second electric ball valve, a third electric ball valve, a fourth electric ball valve, and a fifth electric ball valve. The first electric ball valve is connected to the inlet pipe of the first mud pump water tank, the second electric ball valve is connected to the inlet pipe of the water storage tank, the third electric ball valve is connected to the inlet pipe of the second mud pump water tank, the fourth electric ball valve is connected to the outlet pipe of the water storage tank, and the fifth electric ball valve is connected to the inlet pipe of the water pump.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] This utility model relates to a centralized automatic water replenishment and spraying device for multiple mud pumps. It includes a PLC controller, a water storage tank, a water tanker truck, water pumps, and a mud pump water tank. Electric ball valves are installed on the water pipes connecting each component. Level transmitters are installed in the water storage tank, water tanker truck, and mud pump water tank. These level transmitters monitor the water level and transmit the data to the PLC controller. The PLC controller then controls the opening and closing of the electric ball valves to automatically replenish water to the mud pumps and water storage tanks. This ensures the normal operation of the cylinder liners and pistons, guarantees the safety of drilling operations, and reduces the labor intensity of workers. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of the multi-mud pump centralized automatic water replenishment spraying device of this utility model.

[0015] In the diagram, 1. Mud pump water tank; 11. First mud pump water tank; 12. Second mud pump water tank; 21. First level transmitter; 22. Second level transmitter; 23. Third level transmitter; 3. Water pump; 4. PLC controller; 5. Monitor; 61. First electric ball valve; 62. Second electric ball valve; 63. Third electric ball valve; 64. Fourth electric ball valve; 65. Fifth electric ball valve; 7. Water tanker; 8. Water storage tank. Detailed Implementation

[0016] To make the technical means, technical features, utility model purpose and technical effects of this utility model easier to understand, the present utility model will be further described below with reference to specific illustrations.

[0017] Example 1:

[0018] like Figure 1 The diagram shown is a structural schematic of the multi-mud pump centralized automatic water replenishment spraying device of this utility model.

[0019] This embodiment of a multi-pump centralized automatic water replenishment and spraying device includes a mud pump water tank 1, a water pump 3, a PLC controller 4, an electric ball valve 6, a water tanker 7, and a water storage tank 8. In this embodiment, there are two mud pump water tanks 1, namely a first mud pump water tank 11 and a second mud pump water tank 12. The water inlet of the water pump 3 is connected to the water outlet of the water storage tank 8 and the water tanker 7, respectively. A fourth electric ball valve 64 is installed on the connecting pipe between the water inlet of the water pump 3 and the water outlet of the water storage tank 8, and a fifth electric ball valve 65 is installed on the connecting pipe between the water inlet of the water pump 3 and the water tanker 7. The outlet of the pump 3 is connected to the inlet of the water storage tank 8. A second electric ball valve 62 is installed on the connecting pipe between the outlet of the pump 3 and the inlet of the water storage tank 8. The inlet pipes of the first mud pump tank 11 and the second mud pump tank 12 are both connected to the connecting pipe between the outlet of the pump 3 and the water storage tank 8. The connection points of the inlet pipes of the first mud pump tank 11 and the second mud pump tank 12 are both located at the front end of the second electric ball valve 62. The inlet pipe of the first mud pump tank 11 is equipped with the first electric ball valve 61, and the inlet pipe of the second mud pump tank 12 is equipped with the third electric ball valve 63. The first electric ball valve 61, the second electric ball valve 62, the third electric ball valve 63, the fourth electric ball valve 64, and the fifth electric ball valve 64 are all connected to the PLC controller 4. The PLC controller 4 adjusts the opening and closing of each ball valve to realize the water injection operation into different tanks.

[0020] In this embodiment, a first level transmitter 21 is installed in the first mud pump tank 11, a second level transmitter 22 is installed in the second mud pump tank 12, and a third level transmitter 23 is installed in the water storage tank 8. The first level transmitter 21, the second level transmitter 22, and the third level transmitter 23 are all connected to the PLC controller 4. The PLC controller 4 monitors the liquid level in the tanks via the level transmitters.

[0021] In this embodiment, a monitor 5 is connected to the PLC controller. The monitor 5 is equipped with a touch screen and an alarm. The touch screen facilitates the monitoring and adjustment of system parameters. The alarm sounds when the liquid level in the water tank 8 drops below the warning line, reminding the user to add water to the water tank 8 in time.

[0022] Working principle:

[0023] Internal circulation of the system: When the drilling mud is operating normally and no water replenishment is required, the fourth electric ball valve 64 at the suction port of the water pump 3 and the second electric ball valve 62 at the discharge port are both in the open state, while the other electric ball valves are in the closed state. The water pump 3 draws cooling water from the water storage tank 8 through the fourth electric ball valve 64 and discharges it into the water storage tank 8 through the second electric ball valve 62, thus realizing the internal circulation of cooling water in the water storage tank 8.

[0024] Automatic replenishment function of mud pump water tank: When the liquid level of the first mud pump water tank 11 reaches the first set value, the PLC controller 4 controls the first electric valve 61 to open and the second electric ball valve 62 to close according to the electrical signal sent by the first liquid level transmitter 21. At this time, the water pump 3 draws cooling water from the water storage tank 8 to replenish the first mud pump water tank 11. When the liquid level in the first mud pump water tank 11 reaches the set value, the PLC controller 4 controls the second electric ball valve 62 to open and the first electric ball valve 61 to close according to the electrical signal sent by the first liquid level transmitter 21. Similarly, when the liquid level in the second mud pump tank 12 is lower than the set value, the PLC controller 4 controls the third electric ball valve 63 to open and the second electric ball valve 62 to close sequentially according to the electrical signal sent by the second liquid level transmitter 22. At this time, the water pump 3 draws cooling water from the water storage tank 8 to replenish the second mud pump tank 12. When the liquid level in the second mud pump tank 12 reaches the set value, the PLC controller 4 controls the second electric ball valve 62 to open and the third electric ball valve 63 to close sequentially according to the electrical signal sent by the second liquid level transmitter 22.

[0025] When the first mud pump water tank 11 and the second mud pump water tank 12 are replenished with water at the same time, the replenishment of the first mud pump water tank 1 is not completed. When the replenishment of the second mud pump water tank 12 is completed, the system detects that the first electric ball valve 61 is still in the open state. Therefore, only the third electric ball valve 63 is closed and the second electric ball valve 62 is not opened. After the first mud pump water tank 11 is replenished with water, the second electric ball valve 62 is opened in sequence and the first electric ball valve 61 is closed, and the replenishment of the two mud pump water tanks is completed.

[0026] Water tank level alarm and automatic water filling function: When the water level in water tank 8 reaches the set value, the PLC controller 4 will issue an alarm prompt on the monitor 5 based on the electrical signal sent by the third level transmitter 23, reminding the user to fill water tank 8 in time. When the water tanker 7 is in position and water is being filled into water tank 8, a hose is connected to the water inlet of the water pump 3. The water filling function is selected on the monitor 5. The PLC controller 4 controls the fourth electric ball valve 64 to close, and the second electric ball valve 62 and the fifth electric ball valve 65 to open. The water pump 3 draws cooling water from the water tanker 7 and adds it to the water tank 8. When the water level in water tank 8 reaches the set value, the PLC controller 4 automatically controls the fourth electric ball valve 64 to open and the fifth electric ball valve 65 to close based on the electrical signal sent by the third level transmitter 23, completing the water filling of water tank 8.

[0027] Liquid level monitoring and parameter setting functions: Monitor 5 can visually monitor the liquid level in mud pump water tank 1 and water storage tank 8, allowing for intuitive monitoring of their status and enabling advance preparation for water tanker 7 to fill with water. Simultaneously, monitor 5 can be used to set liquid level parameters for mud pump water tank 1 and water storage tank 8, and switch between automatic and manual functions.

[0028] The above description is merely a preferred embodiment of this utility model and is not intended to limit the scope of this utility model. All equivalent changes and modifications made in accordance with the scope of the claims of this utility model should fall within the technical scope of this utility model.

Claims

1. A centralized automatic water replenishment and spraying device for multiple mud pumps, characterized in that, The system includes a PLC controller (4), a water storage tank (8), a water tanker (7), a water pump (3), and a mud pump tank (1). The two ends of the water pump (3) are connected to the inlet pipe and outlet pipe of the water storage tank (8), respectively. The water tanker (7) is connected to the inlet pipe of the water pump (3), and the mud pump tank (1) is connected to the outlet pipe of the water pump (3). Each component is equipped with an electric ball valve on its connecting water pipe. The water storage tank (8), the water tanker (7), and the mud pump tank (1) are all equipped with level transmitters. The level transmitters and electric ball valves are all connected to the PLC controller (4).

2. The centralized automatic water replenishment and spraying device for multiple mud pumps according to claim 1, characterized in that, It also includes a monitor (5), which is connected to the PLC controller (4).

3. The centralized automatic water replenishment and spraying device for multiple mud pumps according to claim 2, characterized in that, The monitor (5) is equipped with a touch screen.

4. The centralized automatic water replenishment and spraying device for multiple mud pumps according to claim 2, characterized in that, The monitor (5) is equipped with an alarm.

5. The centralized automatic water replenishment and spraying device for multiple mud pumps according to claim 1, characterized in that, The mud pump tank (1) includes at least two units, namely the first mud pump tank (11) and the second mud pump tank (12).

6. The centralized automatic water replenishment and spraying device for multiple mud pumps according to claim 5, characterized in that, The electric ball valves include a first electric ball valve (61), a second electric ball valve (62), a third electric ball valve (63), a fourth electric ball valve (64), and a fifth electric ball valve (65). The first electric ball valve (61) is connected to the inlet pipe of the first mud pump tank (11), the second electric ball valve (62) is connected to the inlet pipe of the water storage tank (8), the third electric ball valve (63) is connected to the inlet pipe of the second mud pump tank (12), the fourth electric ball valve (64) is connected to the outlet pipe of the water storage tank (8), and the fifth electric ball valve (65) is connected to the inlet pipe of the water pump (3).

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