Probe type generator

Abstract

A probe type generator comprises a shell, a driving unit, a power generation unit and a rectification unit. A power output port is formed in the tail part of the shell; the driving unit, the power generation unit and the rectification unit are sequentially arranged in the length direction of the shell; the output end of the driving unit is connected with the input end of the power generation unit, the output end of the power generation unit is connected with the input end of the rectification unit, and the output end of the rectification unit is connected with a power supply output port; according to the probe tube type generator, the rectification unit is arranged to replace a battery, so that the generator is large in energy and temperature range and high in safety.

Description

Technical Field

[0001] The utility model relates to the technical field of generators, in particular to a probe-tube generator. Background Art

[0002] With the widespread application of geosteering technology, logging while drilling technology and closed-loop drilling technology in the oilfield development process, downhole instruments require sufficient energy supply as a guarantee. At present, the power source of downhole instruments is mainly powered by batteries, but the energy and temperature range of batteries are limited, and long-term use has poor safety.

[0003] However, battery-powered devices have limited energy and temperature range and poor safety. Utility Model Content

[0004] In order to solve the problem of poor safety performance caused by battery power supply in the existing drilling industry, the utility model provides a probe-tube generator.

[0005] A probe tube generator comprises a shell, a driving unit, a power generation unit and a rectifier unit; a power output port is provided at the rear of the shell; the driving unit, the power generation unit and the rectifier unit are arranged in sequence along the length direction of the shell, and the power generation unit and the rectifier unit are arranged inside the shell; the driving unit comprises a plurality of guide wheels and impellers, the guide wheels and the impellers are distributed along the circumference of the shell, and can rotate under the drive of flowing liquid, and the output end of the driving unit is connected to the input end of the power generation unit, the output end of the power generation unit is connected to the input end of the rectifier unit, and the output end of the rectifier unit is connected to the power output port.

[0006] In the above-mentioned probe-tube generator, the rectifying unit includes a circuit module.

[0007] In the above-mentioned probe-tube generator, the input end of the circuit module is connected to the output end of the power generation unit, and the output end of the circuit module is connected to the power output port.

[0008] In the above-mentioned probe-tube generator, the driving unit also includes a guide wheel support body, a three-core coaxial connector, an impeller magnetic cylinder assembly and an impeller support shaft.

[0009] In the above-mentioned probe tube type generator, the guide wheel support body is fixedly arranged at the front part inside the outer shell; the three-core coaxial connector is arranged at the rear end of the guide wheel support body; the guide wheel and the impeller are both detachably mounted on the outside of the outer shell; the impeller magnetic cylinder assembly is fixedly arranged inside the outer shell and is at the same position as the impeller; the impeller support shaft is fixedly arranged at the rear end of the front part inside the outer shell and the front end of the middle part of the outer shell, and the impeller magnetic cylinder assembly is mounted on the impeller support shaft.

[0010] The above-mentioned probe-tube generator, the power generation unit includes a wire passing tube, a generator rotor, a generator stator, a bearing, a double-row bearing and a connector.

[0011] In the above-mentioned probe tube type generator, the front end of the wire passing tube is connected to the three-core coaxial connector; the generator rotor is sleeved on the wire passing tube; the generator stator is sleeved on the generator rotor; the bearing is fixedly arranged between the impeller support shaft and the generator rotor; the double-row bearing is arranged at the rear of the generator stator; the connector is fixedly arranged at the rear end of the middle part of the inner part of the outer casing, and is connected to the input end of the circuit module.

[0012] In the above-mentioned probe-tube generator, a centralizer is fixedly provided at the tail of the casing.

[0013] In the above-mentioned probe tube type generator, the guide wheel, the impeller and the centralizer are coaxial.

[0014] The above-mentioned probe-tube generator has an outer shell in the shape of an elongated pen.

[0015] Beneficial effects of the utility model: the probe-tube generator of the utility model is provided with a rectifier unit, so that the three-phase AC voltage formed in the power generation unit is converted into power through the circuit module in the rectifier unit, replacing the battery power supply, which can make the energy and temperature range of the utility model larger and the safety higher. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is an overall schematic diagram of a probe-tube generator of the utility model;

[0017] Figure 2 The utility model is a cross-sectional schematic diagram of a probe-tube type generator. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0019] Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar symbols throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0020] In the description of the present invention, it is necessary to understand that the terms "center", "longitudinal", "lateral", "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention or simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0021] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0022] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix", "join", "hinge" and the like 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, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0023] A probe-tube generator, such as Figure 1 to Figure 2 As shown, it includes a driving unit 100, a power generation unit 200, a rectifier unit 300, a centralizer 400 and a housing 5, wherein the driving unit 100, the power generation unit 200 and the rectifier unit 300 are arranged in a row along the length direction of the housing 5; and the power generation unit 200 and the rectifier unit 300 are both arranged inside the housing 5. The driving unit 100 is used to push the driving unit 100 through the downhole mud to push the power generation unit 200; the power generation unit 200 is used to output three-phase alternating current and transmit it to the rectifier unit 300; the rectifier unit 300 is used to convert the three-phase alternating current into the power required by the downhole instrument; the centralizer 400 is used to support the probe-type generator to a specified position to prevent it from tilting.

[0024] like Figure 2As shown, the driving unit 100 includes a guide wheel support body 101, a guide wheel 102, a three-core coaxial connector 103, an impeller 104, an impeller magnetic cylinder assembly 105 and an impeller support shaft 106; the power generation unit 200 includes a bearing 201, a generator rotor 202, a generator stator 203, a wire passing tube 204, a double-row bearing 205 and a connector 206; the rectifier unit 300 includes a circuit module 301.

[0025] The drive unit 100 is arranged at the front of the housing 5. Figure 2 As shown, the guide wheel support body 101 is fixedly arranged at the front end of the inner shell 5, and is used to support the guide wheel 102; the rear end of the guide wheel support body 101 is provided with a three-core coaxial connector 103, which is used to ensure the stable transmission and high quality of the signal; the guide wheel 102 and the impeller 104 are distributed along the circumference of the shell 5, and the guide wheel 102 and the impeller 104 are both detachably sleeved on the outer periphery of the shell 5, and the rear end of the guide wheel 102 is connected to the front end of the impeller 104. The guide wheel 102 is driven by the flow of mud in the well, and the impeller 104 is driven by the rotation of the guide wheel 102.

[0026] The guide wheel 102 and the impeller 104 are hollow cylinders. Figure 2 As shown, the diameter of the hollow circle of the guide wheel 102 and the impeller 104 is slightly larger than the diameter of the circle of the cross-section of the front part of the outer shell 5, so that the guide wheel 102 and the impeller 104 can be detachably mounted on the front part of the outer shell 5. Through such an arrangement, technicians can select different combinations of the guide wheel 102 and the impeller 104 according to the amount of mud and demand, so as to adapt to the rotation speed of the probe tube generator and the output voltage range of the rectifier circuit.

[0027] The impeller magnetic cylinder assembly 105 is fixedly arranged at a rear position of the front part of the interior of the housing 5. Figure 2 As shown, the impeller main magnetic cylinder 105 is sleeved on the impeller support shaft 106, and the impeller magnetic cylinder assembly 105 is used to accurately control the movement of the impeller 104 to ensure the operation of the generator; half of the impeller support shaft 106 is fixedly arranged at the rear end of the front part of the interior of the outer shell 5, and the other half of the impeller support shaft 106 is fixedly arranged at the front end of the middle part of the interior of the outer shell 5, which is used to support and position the impeller to reduce friction, and is also used to connect the drive unit 100 and the power generation unit 200, thereby ensuring the stability and rotation speed of the impeller.

[0028] The power generation unit 200 is arranged at the front middle of the housing 5. Figure 1As shown, the wire tube 204 runs through the entire power generation unit 200, and part of the wire tube 204 is arranged in the drive unit 100, and the input end of the wire tube 204 is connected to the output end of the three-core coaxial connector, for receiving the signal output by the three-core coaxial connector 103; the generator rotor 202 is sleeved on the wire tube 204; the generator stator 203 is sleeved around the generator rotor 202 in the form of a coil, when the guide wheel 102 rotates, the impeller 104 is driven to rotate, and the generator rotor 202 is driven to rotate through the magnetic coupling principle, so that the magnet on the generator rotor 202 and the surrounding generator stator 203 form a three-phase AC voltage.

[0029] The bearing 201 is fixedly disposed between the impeller support shaft 106 and the generator stator 203. Figure 2 As shown, the bearing 201 is sleeved on the generator rotor 202, and is used to manufacture and protect the generator rotor 202 and the generator stator 203; a double-row bearing 205 is provided at the rear end of the generator rotor 202, and the double-row bearing 205 is sleeved on the generator rotor 202, and is used to reduce friction and rotation resistance, and bear the axial force and radial force of the rotor; the connector 206 is provided at the rear end of the middle part of the housing, as shown in FIG. Figure 2 As shown, the connector 206 is arranged at the rear end of the power generation unit 200, the input end of the connector 206 is connected to the power generation unit 200, and the output end of the connector 206 is connected to the rectifier unit 300, for connecting the rectifier unit 300 and transmitting current to the rectifier unit 300.

[0030] The rectifier unit 300 is arranged in the middle and rear of the housing 5. Figure 2 As shown, the rectifier unit 300 includes a circuit module 301 , which is distributed throughout the entire rectifier unit 300 . The input end of the circuit module 301 is connected to the output end of the connector 206 for receiving the three-phase alternating current output by the power generation unit 200 .

[0031] like Figure 1 to Figure 2 As shown, the centralizer 400 is sleeved on the middle part of the rear part of the housing 5, and is used by technicians to centralize the probe-tube generator to prevent the probe-tube generator from tilting or even falling.

[0032] A power outlet 6 is provided at the rear of the housing 5. Figure 2 As shown, the power output port 6 passes through the tail of the housing 5 and the centralizer 400, and the input end of the power output port 6 is connected to the output end of the circuit module 301 for outputting the rectified power.

[0033] When the utility model is used: according to the displacement of the mud in the well, a suitable guide wheel 102 and the impeller 104 combination are selected, and the suitable guide wheel 102 and the impeller 104 combination are installed on the outside of the shell 5. After the assembly is completed, the probe tube generator is put into the well, and the drilling fluid is used as the power to push the guide wheel 102. The guide wheel 102 starts to rotate with the flow of the mud, and the rotation of the guide wheel 102 drives the impeller 104. The impeller 104 uses the magnetic coupling principle to drive the generator rotor 202 to rotate, so that the magnets on the generator rotor 202 and the surrounding coil-shaped generator stator 203 form a power generation system to output a three-phase AC voltage. The three-phase AC voltage is transmitted to the rectifier unit 300 through the connector 206. The circuit module 301 in the rectifier unit 300 converts the received three-phase AC voltage into the power required by the downhole instrument, and outputs it through the power output port 6 for use by the downhole instrument.

[0034] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent substitutions or changes according to the technical scheme and concept of the present invention within the scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A probe-tube generator, characterized in that: It includes a shell, a driving unit, a power generation unit and a rectifier unit; a power output port is opened at the rear of the shell; the driving unit, the power generation unit and the rectifier unit are arranged in sequence along the length direction of the shell, and the power generation unit and the rectifier unit are arranged inside the shell; the driving unit includes a plurality of guide wheels and impellers, the guide wheels and the impellers are distributed along the circumference of the shell, and can rotate under the drive of the flowing liquid, and the output end of the driving unit is connected to the input end of the power generation unit, the output end of the power generation unit is connected to the input end of the rectifier unit, and the output end of the rectifier unit is connected to the power output port.

2. The probe-tube generator according to claim 1, characterized in that: The rectifying unit comprises a circuit module.

3. The probe-tube generator according to claim 2, characterized in that: The input end of the circuit module is connected to the output end of the power generation unit, and the output end of the circuit module is connected to the power output port.

4. The probe-tube generator according to claim 3, characterized in that: The driving unit also includes a guide wheel support body, a three-core coaxial connector, an impeller magnetic cylinder assembly and an impeller support shaft.

5. The probe-tube generator according to claim 4, characterized in that: The guide wheel support body is fixedly arranged at the front part inside the outer shell; the three-core coaxial connector is arranged at the rear end of the guide wheel support body; the guide wheel and the impeller are both detachably mounted on the outside of the outer shell; the impeller magnetic cylinder assembly is fixedly arranged inside the outer shell and is at the same position as the impeller; the impeller support shaft is fixedly arranged at the rear end of the front part inside the outer shell and the front end of the middle part of the outer shell, and the impeller magnetic cylinder assembly is mounted on the impeller support shaft.

6. The probe-tube generator according to claim 5, characterized in that: The power generation unit comprises a wire passing tube, a generator rotor, a generator stator, a bearing, a double-row bearing and a connector.

7. The probe-tube generator according to claim 6, characterized in that: The front end of the wire passing tube is connected to the three-core coaxial connector; the generator rotor is sleeved on the wire passing tube; the generator stator is sleeved on the generator rotor; the bearing is fixedly arranged between the impeller support shaft and the generator rotor; the double-row bearing is arranged at the rear of the generator stator; the connector is fixedly arranged at the rear end of the middle part of the outer casing and connected to the input end of the circuit module.

8. The probe-tube generator according to claim 1, characterized in that: A centralizer is fixedly arranged at the tail of the shell.

9. The probe-tube generator according to claim 8, characterized in that: The guide wheel, the impeller and the centralizer are coaxial.

10. The probe-tube generator according to claim 1, characterized in that: The shell is in the shape of an elongated pen.

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