Top drive hydraulic oil temperature control system

Abstract

The utility model discloses a top drive hydraulic oil temperature control system, comprising a temperature detection unit which comprises at least one temperature sensor, is installed in a hydraulic oil tank and is used for detecting the temperature of hydraulic oil in real time and converting a temperature signal into an electric signal for outputting; the control unit is electrically connected with the temperature detection unit and is used for receiving the electric signal output by the temperature detection unit and judging whether the detected temperature exceeds a preset temperature threshold value or not so as to generate a control instruction; the heat dissipation mechanism is electrically connected with the control unit, works according to a control instruction of the control unit and comprises a cooling water tank, a water suction pump, a fixing frame and a water outlet pipe, and the fixing frame is fixed to a vehicle frame. Therefore, the power output stability of the drilling machine is ensured, and energy consumption is reduced.

Description

Technical Field

[0001] This utility model relates to the field of drilling equipment technology, specifically to a top drive hydraulic oil temperature control system. Background Technology

[0002] In oil and gas drilling operations, the rotational power of the drilling rig is mainly provided by a drive unit located on top of the drill rig, namely the top drive. Previously, the top drive used electric power to control the rig's rotation; however, electric drives struggled to provide sufficient torque output, so hydraulic drives were adopted instead.

[0003] Hydraulic drives mainly consist of hydraulic pumps and hydraulic motors, transmitting power to the drilling rig via hydraulic transmission. The temperature of the hydraulic oil plays a crucial role in this power transmission. However, in summer, excessively high hydraulic oil temperatures can lead to sediment buildup, resulting in reduced power output, affecting drilling rig performance, and increasing the risk of leaks and storage hazards. In winter, excessively low hydraulic oil temperatures cause excessively high viscosity and poor flowability, significantly increasing energy consumption when the hydraulic pump supplies oil to the hydraulic motor. Summary of the Invention

[0004] The technical problem to be solved by this utility model is to overcome the existing defects and provide a top drive hydraulic oil temperature control system that can ensure that the hydraulic oil is within a suitable temperature range during operation, thereby ensuring the stability of the power output of the drilling rig, reducing energy consumption, and effectively solving the problems in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a top drive hydraulic oil temperature control system, comprising:

[0006] The temperature detection unit includes at least one temperature sensor, which is installed inside the hydraulic oil tank to detect the temperature of the hydraulic oil in real time and convert the temperature signal into an electrical signal output.

[0007] The control unit is electrically connected to the temperature detection unit, receives the electrical signal output by the temperature detection unit, determines whether the detected temperature exceeds a preset temperature threshold, and then generates a control command.

[0008] The heat dissipation mechanism, electrically connected to the control unit, operates according to the control instructions of the control unit. It includes a cooling water tank, a water pump, a fixed frame, and a water outlet pipe. The fixed frame is fixed on a ground support, and the hydraulic oil tank is located inside the fixed frame. One end of the fixed frame is connected to the water pump through a hose, and the other end of the water pump is connected to the cooling water tank. The lower end of the fixed frame is provided with a water outlet pipe, which cools the hydraulic oil in the hydraulic oil tank by means of cooling water.

[0009] A heating mechanism is installed on the hydraulic pipeline between the hydraulic pump and the hydraulic motor and is electrically connected to the control unit. The hydraulic pipeline is heated according to the control command of the control unit. The mechanism includes a heating box and an electric heating wire. The heating box is fixed on the vehicle frame. The hydraulic pipeline between the hydraulic pump and the hydraulic motor passes through the heating box. An electric heating wire is provided on the inner side of the heating box to heat the hydraulic oil flowing through the hydraulic pipeline.

[0010] As a preferred embodiment of this invention, the temperature sensor is a thermistor type temperature sensor.

[0011] As a preferred embodiment of this utility model, an electrically controlled valve is installed inside the water outlet pipe, and the water outlet pipe is connected to the cooling water tank via a return water pipe.

[0012] As a preferred embodiment of this utility model, a liquid level sensor is provided inside the fixed frame, and the output end of the liquid level sensor is electrically connected to the input end of the control unit.

[0013] As a preferred technical solution of this utility model, the cooling water tank is equipped with a self-cooling component to ensure that the water in the cooling water tank is in a low temperature state.

[0014] As a preferred embodiment of this utility model, the hydraulic pipeline between the hydraulic pump and the hydraulic motor is made of high-temperature resistant material.

[0015] Compared with the prior art, the beneficial effects of this utility model are: the top drive hydraulic oil temperature control system is reasonably designed and ingeniously conceived. By setting a temperature detection unit to detect the temperature of the hydraulic oil in real time, when the temperature is too high, the hydraulic oil in the hydraulic oil tank is cooled by the heat dissipation mechanism, thereby ensuring that the hydraulic oil is at a suitable temperature and avoiding the risk of leakage and spontaneous combustion; when the temperature is too low, the hydraulic oil delivered by the hydraulic pump to the hydraulic motor is heated by the heating mechanism, reducing energy consumption and ensuring the stability of the drilling rig. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the planar structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the control system of this utility model.

[0018] In the diagram: 1 Temperature detection unit, 2 Hydraulic oil tank, 3 Hydraulic pump, 4 Hydraulic motor, 5 Heat dissipation mechanism, 51 Cooling water tank, 52 Water pump, 53 Fixing frame, 54 Water outlet pipe, 55 Electrically controlled valve, 56 Water return pipe, 57 Liquid level sensor, 6 Heating mechanism, 61 Heating box, 62 Electric heating wire. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0020] Please see Figure 1-2 This utility model provides a technical solution: a top drive hydraulic oil temperature control system, including a temperature detection unit 1, a control unit, a heat dissipation mechanism 5, and a heating mechanism 6;

[0021] The temperature detection unit 1 includes at least one temperature sensor, which is installed in the hydraulic oil tank 2 to detect the temperature of the hydraulic oil in real time and convert the temperature signal into an electrical signal output.

[0022] The control unit is electrically connected to the temperature detection unit 1 and receives the electrical signal output by the temperature detection unit 1. The control unit has a temperature threshold range set in it. When the temperature of the hydraulic oil exceeds the preset temperature threshold range, the control unit generates a control command.

[0023] The heat dissipation mechanism 5 includes a cooling water tank 51, a water pump 52, a fixing frame 53, and a water outlet pipe 54. The fixing frame 53 is fixed on the ground support and has an open box structure at the top. The hydraulic oil tank 2 is located inside the fixing frame 53. One end of the fixing frame 53 is connected to the water pump 52 through a hose, and the other end of the water pump 52 is connected to the cooling water tank 51. The cooling water tank 51 is equipped with a self-cooling component to ensure that the water in the cooling water tank 51 is at a low temperature. The lower end of the fixing frame 53 is equipped with a water outlet pipe 54. The input end of the water pump 52 is electrically connected to the output end of the control unit. The water pump 52 draws the cooling water in the cooling water tank 51 into the fixing frame 53, and the cooling water cools the hydraulic oil in the hydraulic oil tank 2.

[0024] The heating mechanism 6 includes a heating box 61 and an electric heating wire 62. The heating box 61 is fixed on the frame. The hydraulic pipeline between the hydraulic pump 3 and the hydraulic motor 4 passes through the heating box 61. The electric heating wire 62 is provided on the inner side of the heating box 61. The hydraulic oil flowing through this hydraulic pipeline is heated by the electric heating wire 62.

[0025] To improve the sensitivity of temperature detection, a thermistor-type temperature sensor is used.

[0026] In order to achieve the recycling of cooling water and save energy, an electrically controlled valve 55 is installed in the outlet pipe 54. The outlet pipe 54 is connected to the cooling water tank 51 through the return pipe 56. The input end of the electrically controlled valve 55 is electrically connected to the output end of the control unit.

[0027] To prevent cooling water from overflowing from the fixing frame 53, a liquid level sensor 57 is installed inside the fixing frame 53. The output end of the liquid level sensor 57 is electrically connected to the input end of the control unit. When the water level of the cooling water reaches a certain height, the cooling water begins to circulate and flow in, cooling the hydraulic oil in the hydraulic oil tank 2.

[0028] Furthermore, the hydraulic pipeline between the hydraulic pump 3 and the hydraulic motor 4 is made of high-temperature resistant material to prevent damage to the pipeline when the electric heating wire 62 heats it.

[0029] In use: In summer, when the temperature sensor detects that the hydraulic oil temperature in the hydraulic oil tank 2 is too high, the temperature sensor transmits the signal to the control unit. The control unit controls the water pump 52 to start, pumping the cooling water in the cooling water tank 51 into the fixed frame 53. At this time, the electric valve 55 is in the closed state. When the water level reaches the hydraulic sensor 57, the level sensor 57 transmits the signal to the control unit. The control unit controls the electric valve 55 to open, and the water pump 52 continuously supplies water to ensure the continuous flow of cooling water and cools the hydraulic oil in the hydraulic oil tank 2.

[0030] In winter, when the temperature sensor detects that the hydraulic oil in the hydraulic oil tank 2 is too cold, the temperature sensor transmits the signal to the control unit. The control unit controls the electric heating wire 62 to work, which heats the hydraulic oil in the hydraulic pipeline between the hydraulic pump 3 and the hydraulic motor 4, thereby improving the fluidity of the hydraulic oil and reducing energy consumption.

[0031] This invention can effectively control the temperature of hydraulic oil within a suitable range, ensuring the stability of drilling rig operation, eliminating safety hazards, reducing energy consumption, and greatly improving ease of use, regardless of whether it is winter or summer.

[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A top drive hydraulic oil temperature control system, characterized by: The utility model relates to a temperature detection unit (1) comprising at least one temperature sensor installed in a hydraulic oil tank (2) for real-time detection of the temperature of the hydraulic oil and conversion of the temperature signal into an electrical signal output; a control unit electrically connected to the temperature detection unit (1) for receiving the electrical signal output by the temperature detection unit (1) and determining whether the detected temperature exceeds a preset temperature threshold to generate a control instruction; a heat dissipation mechanism (5) electrically connected to the control unit and operating according to the control instruction of the control unit, comprising a cooling water tank (51), a water pump (52), a fixed frame (53), and a water outlet pipe (54); the fixed frame (53) is fixed to a ground support, the hydraulic oil tank (2) is located in the fixed frame (53), one end of the fixed frame (53) is connected to the water pump (52) through a hose, the other end of the water pump (52) is connected to the cooling water tank (51), and the lower end of the fixed frame (53) is provided with the water outlet pipe (54) for cooling the hydraulic oil in the hydraulic oil tank (2) by cooling water; a heating mechanism (6) is arranged on the hydraulic pipeline between a hydraulic pump (3) and a hydraulic motor (4) and is electrically connected to the control unit for heating the hydraulic pipeline according to the control instruction of the control unit, comprising a heating tank (61) and an electric heating wire (62); the heating tank (61) is fixed to a vehicle frame, the hydraulic pipeline between the hydraulic pump (3) and the hydraulic motor (4) passes through the heating tank (61), and the inner side of the heating tank (61) is provided with the electric heating wire (62) for heating the hydraulic oil flowing through the hydraulic pipeline. The temperature sensor is a thermistor type temperature sensor. An electric control valve (55) is arranged in the water outlet pipe (54), and the water outlet pipe (54) is connected to the cooling water tank (51) through a backwater pipe (56). A liquid level sensor (57) is arranged in the fixed frame (53), and the output end of the liquid level sensor (57) is electrically connected to the input end of the control unit. A self-cooling assembly is arranged in the cooling water tank (51) to ensure that the water in the cooling water tank (51) is in a low-temperature state.

2. A top drive hydraulic oil temperature control system as claimed in claim 1, characterized in that: The hydraulic pipeline between the hydraulic pump (3) and the hydraulic motor (4) is made of a high-temperature-resistant material.

3. The hydraulic oil temperature control system of claim 1, wherein: ​ 4. The hydraulic oil temperature control system of claim 1, wherein: ​ 5. The hydraulic oil temperature control system of claim 1, wherein: ​ 6. A top drive hydraulic oil temperature control system as defined in claim 1, wherein: ​

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