CN112388567A - Neutron source loading and unloading device and method for logging instrument - Google Patents
Neutron source loading and unloading device and method for logging instrument Download PDFInfo
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- CN112388567A CN112388567A CN202011183237.XA CN202011183237A CN112388567A CN 112388567 A CN112388567 A CN 112388567A CN 202011183237 A CN202011183237 A CN 202011183237A CN 112388567 A CN112388567 A CN 112388567A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
- B25B27/14—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for assembling objects other than by press fit or detaching same
- B25B27/143—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for assembling objects other than by press fit or detaching same for installing wire thread inserts or tubular threaded inserts
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
- B25B27/14—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for assembling objects other than by press fit or detaching same
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Abstract
The invention discloses a neutron source assembling and disassembling device and a method for a logging instrument, wherein the neutron source assembling and disassembling device comprises an outer pipe, a sleeve, an inner rod and a hexagonal handle; the sleeve is arranged at the top end of the outer pipe, the sleeve is of an inner hexagonal structure, a radial clamping groove is formed in the end face of the top end of the outer pipe, and a locking device is arranged at the bottom end of the outer pipe; the inner rod is arranged in the outer tube and is in sliding connection with the outer tube, the top end of the inner rod extends out of the top end of the outer tube and is positioned in the sleeve, the top end of the inner rod is provided with external threads, the bottom end of the external thread area is provided with a radially extending limiting pin, and the bottom end of the inner rod extends out of the bottom end of the outer tube and is connected with the hexagonal handle; the bottom end of the outer pipe is connected with the top end of the hexagonal handle through a spring, the spring is nested on the inner rod, the bottom end of the hexagonal handle is of an outer hexagonal structure, and the two sides of the top of the outer hexagonal structure are provided with lifting pins. Through a device, realize the fast loading and unloading of neutron source, improve handling efficiency.
Description
Technical Field
The invention belongs to the field of well logging of compensated neutron logging instruments, and relates to a device and a method for assembling and disassembling a neutron source of a logging instrument.
Background
When the compensated neutron logging instrument is used for calibration and logging, a neutron source with the activity of 16-20 Ci needs to be assembled and disassembled, and the source belongs to the second or third radioactive sources specified by the country and has great harm to human bodies.
The existing tools for assembling and disassembling the neutron source are three, namely a sleeve tool, a source bin hook and a source bin fixing screw assembling and disassembling rod. When the neutron source is assembled and disassembled for the compensated neutron logging instrument, the three tools are required to be alternately used respectively to complete the field operation.
When the source is loaded, the fastening screw of the neutron source bin is loosened by the source bin fixing screw loading and unloading rod, then the source bin hook is used for pulling out the neutron source bin from the compensation neutron logging instrument so that the neutron source bin is perpendicular to the position of the compensation neutron logging instrument and exposes out of the source bin hole, then the sleeve tool is used for sleeving the head hexagon of the neutron source from the source tank and is connected with the head source lifting screw hole, and the neutron source bin is loaded into the compensation neutron logging instrument after the neutron source bin is taken out and tensioned by anticlockwise rotation. And closing the source bin, and screwing the fastening screw of the neutron source bin by using the source bin fixing screw assembling and disassembling rod. The source unloading process basically repeats the actions.
When the neutron source is assembled and disassembled, the three tools need to be used alternately, the operation links are more, and the irradiation time of personnel by neutron rays is long; the source bin hook is a tool for opening the source bin, the sleeve is a tool for fastening and disassembling the neutron source, the tool for closing the source bin is lacked, and in practical use, the source bin is forcibly hammered by the sleeve or other tools to be closed, so that the sleeve is deformed and the source bin is damaged.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a device and a method for assembling and disassembling a neutron source of a logging instrument.
In order to achieve the purpose, the invention adopts the following technical scheme to realize the purpose:
a neutron source assembling and disassembling device of a logging instrument comprises an outer pipe, a sleeve, an inner rod and a hexagonal handle;
the sleeve is arranged at the top end of the outer pipe, the sleeve is of an inner hexagonal structure, a radial clamping groove is formed in the end face of the top end of the outer pipe, and a locking device is arranged at the bottom end of the outer pipe; the inner rod is arranged in the outer tube and is in sliding connection with the outer tube, the top end of the inner rod extends out of the top end of the outer tube and is positioned in the sleeve, the top end of the inner rod is provided with external threads, the bottom end of the external thread area is provided with a radially extending limiting pin, and the bottom end of the inner rod extends out of the bottom end of the outer tube and is connected with the hexagonal handle; the bottom end of the outer pipe is connected with the top end of the hexagonal handle through a spring, the spring is nested on the inner rod, the bottom end of the hexagonal handle is of an outer hexagonal structure, and the two sides of the top of the outer hexagonal structure are provided with lifting pins.
Preferably, be provided with the data monitoring unit on the outer tube, the data monitoring unit includes radiation measuring instrument, treater and pilot lamp, and the treater input is connected to the radiation measuring instrument output, and the pilot lamp input is connected to the treater output, and the pilot lamp includes yellow light and red light.
Further, the output end of the processor is connected with a wireless communication module, and the input end of the wireless communication module is connected with the output end of the GPS positioner and the output end of the staff card scanning module.
Preferably, the inner rod is provided with a ring groove, the locking device comprises an elastic clamping sleeve and a locking nut, the elastic clamping sleeve is attached to the inner rod, the locking nut is nested outside the elastic clamping sleeve, and when the spring is in a natural state, the elastic clamping sleeve corresponds to the ring groove.
Preferably, the sleeve is provided with a viewing aperture on a circumferential surface thereof.
Preferably, the overall length of the device is 1-1.5 m.
Preferably, all components are made of titanium alloy and/or super-hard aluminum material.
A logging instrument neutron source loading and unloading method based on any one of the logging instrument neutron source loading and unloading devices is characterized in that;
when installing the neutron source: the limiting pin is positioned in the clamping groove at the top end of the outer pipe, and the locking device relatively locks the outer pipe and the inner rod;
rotating the outer pipe to drive the hexagonal handle at the bottom end of the inner rod, loosening a fastening screw of the neutron source bin by using an outer hexagonal head at the bottom end of the hexagonal handle, inserting the hexagonal handle into a lifting groove of the neutron source bin, rotating the outer pipe to enable a lifting pin and the lifting groove to form a certain direction, hooking the neutron source bin out of the compensated neutron logging instrument, and pulling the neutron source bin to a horizontal station vertical to the compensated neutron logging instrument;
taking out the neutron source loading and unloading device of the logging instrument, opening the locking device, sleeving the hexagonal head of the neutron source from the source tank by using a sleeve, pressing down the inner rod, enabling external threads at the top end of the inner rod to contact a source lifting screw hole at the head of the neutron source, rotating the outer pipe, enabling the top end of the inner rod to be in threaded connection with the neutron source, inserting the neutron source into the neutron source bin after the neutron source is taken out, and rotating the outer pipe to load the neutron source into the neutron source bin;
the outer pipe is loosened, the inner rod is reset under the action of a spring, the limiting pin is clamped in a clamping groove at the top end of the outer pipe, and the locking device is locked; pushing the neutron source bin to close into the compensated neutron logging instrument by using a lifting pin and a hexagonal head; the outer pipe is rotated to drive the hexagonal handle at the bottom end of the inner rod, and the fastening screw of the neutron source bin is screwed by the outer hexagonal head at the bottom end of the hexagonal handle;
when the neutron source is disassembled: loosening a fastening screw of the neutron source bin by using a hexagonal head outside the bottom end of the hexagonal handle, inserting a lifting pin into a groove of the neutron source bin, hooking the neutron source bin out of the compensated neutron logging instrument, and pulling the neutron source bin to a horizontal station vertical to the compensated neutron logging instrument;
taking out the neutron source loading and unloading device of the logging instrument, opening the locking device, sleeving the head hexagon of the neutron source on the neutron source bin by using a sleeve, pressing down the inner rod to enable the external thread at the top end of the inner rod to contact a source lifting screw hole of the head of the neutron source, rotating the outer pipe, tensioning and taking out the neutron source, inserting the neutron source into the source tank, and rotating the outer pipe to load the neutron source into the source tank;
the outer pipe is loosened, the inner rod is reset under the action of a spring, the locking device is locked, and the neutron source bin is pushed to be closed into the compensated neutron logging instrument by the aid of the lifting pin and the hexagonal head; the outer pipe is rotated to drive the hexagonal handle at the bottom end of the inner rod, and the fastening screw of the neutron source bin is screwed by the outer hexagonal head at the bottom end of the hexagonal handle.
Preferably, during operation, the radiation measuring instrument measures a radiation value of the current environment, when the radiation is detected, the radiation value is sent to the processor, the processor judges whether the detection value exceeds a threshold value, if the detection value is smaller than the threshold value, the indicating lamp is turned on in a yellow mode, and if the detection value is larger than or equal to the threshold value, the indicating lamp is turned on in a red mode.
Furthermore, before operation, the worker card scanning module scans the worker cards, and after the operation is finished, the wireless communication module sends the personnel information, the GPS locator data and the ray radiation numerical value to the background.
Compared with the prior art, the invention has the following beneficial effects:
according to the device, the inner rod is assembled in the outer tube, the top end of the inner rod is provided with the external thread, the inner rod can rotate and axially move when the locking device is in an open state, and the inner rod is pressed downwards and rotated to move forwards towards the top end of the sleeve, so that the device can be used for connecting a source lifting screw hole of a neutron source. Through spring push-and-pull bottom hexagonal handle, taut neutron source prevents to drop. The hexagonal is used for suit neutron source in the sleeve, and the spacer pin card of inner rod bottom is in the draw-in groove on outer tube top, thereby cooperation locking device's locking realizes inner rod and outer tube synchronous rotation. The outer hexagonal head at the bottom end of the hexagonal handle can screw and loosen fastening screws of the neutron source bin to realize the opening and closing of the neutron source bin. The pulling pin and the hexagonal head form a cross hook, and the pulling pin can be hooked out of the compensated neutron logging instrument by being inserted into a groove on the neutron source and can also be used for pushing the neutron source bin to be closed into the compensated neutron logging instrument. The device can be used for rapidly realizing the assembly and disassembly of fastening screws of the neutron source bin, lifting and closing the neutron source bin, and extracting and assembling and disassembling the neutron source on a construction site. The prior art that three tools are respectively used for completing the operation of loading and unloading sources is avoided, the number of tools is reduced, the operation steps are simplified, and the operation time is shortened.
Furthermore, the data monitoring unit can measure the environmental radiation and display the environmental radiation through the indicator lamp, so that the operation safety is improved.
According to the method, the neutron source bin is hooked through the lifting pin, the neutron source bin is hooked out of the compensated neutron logging instrument, the hexagonal head of the neutron source is sleeved with the sleeve, the neutron source is connected with the neutron source through the external threads at the top end of the inner rod, the neutron source bin is inserted after the neutron source is taken out, the neutron source is installed into the neutron source bin by rotating the outer pipe, the fastening screw of the neutron source bin is screwed through the external hexagonal head at the bottom end of the hexagonal handle, the neutron source bin is closed, the assembly and disassembly of the fastening screw of the neutron source bin are rapidly achieved, the neutron source bin is lifted and closed, the neutron source is extracted and assembled, the operation steps are simplified, and the operation time is shortened.
Drawings
FIG. 1 is a schematic diagram of the apparatus of the present invention;
FIG. 2 is a schematic view of the sleeve structure of the present invention;
FIG. 3 is a schematic view of a hexagonal handle configuration of the present invention;
FIG. 4 is a schematic diagram of a data monitoring unit according to the present invention;
fig. 5 is a schematic structural diagram of the locking device of the present invention.
Wherein: 1-an outer tube; 2-a lock nut; 3-a sleeve; 4-inner rod; 5-a hexagonal handle; 6-connecting pin; 7-lifting pin; 8-a spring; 9-a limit pin; 10-a data monitoring unit; 11-a radiation measuring instrument; 12-an indicator light; 13-staff card scanning module.
Detailed Description
The invention is described in further detail below with reference to the accompanying drawings:
as shown in figure 1, the neutron source assembling and disassembling device for the logging instrument comprises an outer tube 1, a sleeve 3, an inner rod 4 and a hexagonal handle 5.
The bottom end of the outer tube 1 is provided with a locking device, as shown in fig. 5, the locking device comprises an elastic clamping sleeve and a locking nut 2, the bottom end of the outer tube 1 is of an elastic clamping sleeve structure, an annular groove is formed in the inner rod 4, the elastic clamping sleeve corresponds to the annular groove in position, and the locking nut 2 can be screwed or loosened on the outer tube 1, so that the elastic clamping sleeve of the outer tube is radially compressed or released, and the axial movement and the rotation of the elastic clamping sleeve are limited.
As shown in figure 2, the top end of the outer tube 1 and the sleeve 3 are welded into a whole, the sleeve 3 is of an inner hexagonal structure and is used for screwing or loosening the neutron source, an observation hole is formed in the sleeve, and the assembly and disassembly operations of the neutron source by the inner rod 4 can be observed.
The inner rod 4 is arranged inside the outer tube 1 and is in sliding connection with the outer tube 1, the top end of the inner rod 4 extends out of the top end of the outer tube 1 and is located inside the sleeve 3, external threads at the top end of the inner rod 4 are used for being connected with a neutron source and are tensioned through the spring 8, and the neutron source is prevented from falling off in the loading and unloading process; in addition, the bottom end of the external thread area is provided with a radially extending limiting pin 9, and the limiting pin 9 is clamped in the clamping groove of the outer pipe 1 when the locking nut 2 is locked, so that the circumferential position of the inner rod 4 is limited, and the inner rod 4 and the outer pipe 1 can rotate synchronously.
As shown in fig. 3, the end of the hexagonal handle 5 at the bottom end of the inner rod 4 is of an outer hexagonal structure and is provided with the pulling pins 7, the pulling pins 7 are positioned at two sides of the top of the outer hexagonal structure, and the fastening screws of the neutron source bin can be screwed and loosened by using the outer hexagonal heads. The pulling pin 7 and the outer hexagonal head form a cross structure, so that the neutron source bin can be hooked out of the instrument and pulled to a source loading and unloading station vertical to the instrument, and the pulling pin can also be used for pushing the neutron source bin to be closed into the instrument.
As shown in fig. 4, the outer tube 1 is provided with a data monitoring unit 10, the data monitoring unit 10 includes a wireless communication module input end, a GPS locator output end, a staff card scanning module 13 output end radiation measuring instrument 11, a processor and an indicator light 12, the output end of the radiation measuring instrument 11 is connected with the processor input end, the processor output end is connected with the indicator light 12 input end, and the indicator light 12 includes a yellow light and a red light.
The output end of the radiation measuring instrument 11 is connected with the input end of the processor, the output end of the processor is connected with the input end of the indicator lamp 12, and the indicator lamp 12 comprises a yellow lamp and a red lamp. The output end of the processor is connected with a wireless communication module, and the input end of the wireless communication module is connected with the output end of a GPS (global positioning system) positioner and the output end of a staff card scanning module 13.
The whole length of the device is 1-1.5 m. All parts are made of titanium alloy and/or super-hard aluminum material.
Loading source operation:
before the operation is started, the field operator records the staff card in the staff card scanning module 13 of the data monitoring unit, records the staff information, and the unit starts to work from a standby state. When ray radiation is detected, the ray radiation is sent to the processor, the processor judges whether the detection value exceeds a threshold value, if the detection value is smaller than the threshold value, the indicating lamp 12 is turned on in a yellow mode, and if the detection value is larger than or equal to the threshold value, the indicating lamp 12 is turned on in a red mode.
Meanwhile, working condition data information such as personnel information, radiation values, global positioning positions and the like is transmitted to a background headquarter monitoring center through a wireless communication module and a relay encryption of an engineering truck, and the field operation condition is monitored in real time.
When the neutron source is installed, the inner rod 4 is at an initial position, the limiting pin 9 arranged at the top end of the inner rod 4 is clamped in the clamping groove of the outer tube 1, the locking nut 2 radially compresses the elastic clamping sleeve structure of the outer tube 1 in a screwing state, and the inner rod 4 is clamped in the annular groove corresponding to the inner rod 4 to limit axial movement and rotation of the inner rod 4, so that synchronous rotation of the inner rod 4 and the outer tube 1 is realized.
The outer tube 1 is rotated to drive the hexagonal handle 5 at the bottom end of the inner rod 4, and the fastening screw of the neutron source bin is loosened by the hexagonal head outside the end head of the hexagonal handle. And then the neutron source bin is inserted into a neutron source bin lifting groove, the outer tube 1 is rotated to enable a cross hook of a lifting pin 7 to be in a 90-degree direction with the groove, the neutron source bin is hooked and pulled out of the instrument, and the neutron source bin is pulled to a horizontal station vertical to the instrument.
The tool is taken out, the locking nut 2 is loosened in a rotating mode, the elastic clamping sleeve at the bottom end of the outer tube 1 is released, and the inner rod 4 can rotate and move axially. The hexagonal head of the neutron source is sleeved in the source tank by a sleeve 3, the inner rod 4 is pressed downwards, the end part of the inner rod is in threaded connection with a source lifting screw hole of the head of the neutron source, the outer pipe 1 is rotated anticlockwise, the end part of the inner rod 4 is in threaded connection with the neutron source, the neutron source is tensioned and taken out and then inserted into a neutron source bin, and the outer pipe 1 is rotated clockwise to load the source.
The inner rod 4 resets under the action of the spring 8, the limiting pin 9 is clamped in the clamping groove of the outer tube 1, the locking nut 2 is screwed, and the elastic clamping sleeve radially compressing the outer tube 1 is clamped in the annular groove corresponding to the inner rod 4 to limit the axial movement and rotation of the inner rod 4, so that the inner rod 4 and the outer tube 1 can synchronously rotate.
The pulling pin 7 for turning around and the hexagonal head form a cross structure to push the neutron source bin to be closed in the instrument.
The outer tube 1 is rotated to drive the hexagonal handle 5 at the bottom end of the inner rod 4, and the fastening screw of the neutron source bin is screwed by the hexagonal head outside the end head of the hexagonal handle.
Source unloading operation:
and loosening a fastening screw of the neutron source bin by using an external hexagonal head at the end head of the hexagonal handle 5. And a cross hook of the lifting pin 7 is inserted into a groove of the neutron source bin, the neutron source bin is hooked and pulled out of the instrument, and the neutron source bin is pulled to a horizontal station vertical to the instrument.
The tool is taken out, the lock nut 2 is rotated to loosen, and the elastic ferrule at the bottom end of the outer tube 1 is released. Turning around from entangling the neutron source head hexagonal on the neutron source storehouse with sleeve 3 to push down inner rod 4, make its tip threaded connection neutron source head carry the source screw, anticlockwise rotation outer tube 1, after taut and taking out the neutron source, insert and clockwise rotation outer tube 1 and pack into the source jar with the source.
The inner rod 4 is reset, the locking nut 2 is screwed, and the pulling pin 7 and the hexagonal head are turned around to form a cross structure to push the neutron source bin to be closed into the instrument.
The outer tube 1 is rotated to drive the hexagonal handle 5 at the bottom end of the inner rod 4, and the fastening screw of the neutron source bin is screwed by the hexagonal head outside the end head of the hexagonal handle.
And finishing the source installation operation, swiping a worker card by a field operator in a scanning area of the radiation and working condition data monitoring unit, entering a standby state from a working state by the unit, and finishing the recording and transmission of the working condition data after shutdown.
The above-mentioned contents are only for illustrating the technical idea of the present invention, and the protection scope of the present invention is not limited thereby, and any modification made on the basis of the technical idea of the present invention falls within the protection scope of the claims of the present invention.
Claims (10)
1. A neutron source handling device of a logging instrument is characterized by comprising an outer tube (1), a sleeve (3), an inner rod (4) and a hexagonal handle (5);
the sleeve (3) is arranged at the top end of the outer pipe (1), the sleeve (3) is of an inner hexagonal structure, a radial clamping groove is formed in the end face of the top end of the outer pipe (1), and a locking device is arranged at the bottom end of the outer pipe (1); the inner rod (4) is arranged inside the outer tube (1) and is in sliding connection with the outer tube (1), the top end of the inner rod (4) extends out of the top end of the outer tube (1) and is located inside the sleeve (3), external threads are arranged at the top end of the inner rod (4), a radially extending limiting pin (9) is arranged at the bottom end of the external thread area, and the bottom end of the inner rod (4) extends out of the bottom end of the outer tube (1) and is connected with the hexagonal handle (5); the bottom end of the outer tube (1) is connected with the top end of the hexagonal handle (5) through a spring (8), the spring (8) is nested on the inner rod (4), the bottom end of the hexagonal handle (5) is of an outer hexagonal structure, and the two sides of the top of the outer hexagonal structure are provided with lifting pins (7).
2. The handling device of a neutron source of a logging instrument according to claim 1, characterized in that the outer tube (1) is provided with a data monitoring unit (10), the data monitoring unit (10) comprises a radiation measuring instrument (11), a processor and an indicator light (12), the output end of the radiation measuring instrument (11) is connected with the input end of the processor, the output end of the processor is connected with the input end of the indicator light (12), and the indicator light (12) comprises a yellow light and a red light.
3. A logging instrument neutron source handling device as claimed in claim 2, wherein the output of the processor is connected to a wireless communication module, the input of which is connected to the output of the GPS locator and the output of the staff card scanning module (13).
4. The handling device of a neutron source of a logging instrument as claimed in claim 1, wherein the inner rod (4) is provided with a ring groove, the locking device comprises an elastic clamping sleeve and a locking nut (2), the elastic clamping sleeve is attached to the inner rod (4), the locking nut (2) is nested outside the elastic clamping sleeve, and when the spring (8) is in a natural state, the elastic clamping sleeve corresponds to the ring groove.
5. A tool neutron source handling apparatus according to claim 1, wherein the sleeve (3) is provided with viewing holes in its circumferential surface.
6. A tool neutron source handling apparatus as in claim 1 wherein the overall length of the apparatus is 1-1.5 m.
7. A tool neutron source handling apparatus as in claim 1 wherein all of the components are made of titanium alloy and/or super hard aluminum material.
8. A method for loading and unloading a neutron source of a logging instrument based on the device for loading and unloading the neutron source of the logging instrument as claimed in any one of claims 1 to 7, wherein the device comprises a base;
when installing the neutron source: the limiting pin (9) is positioned in a clamping groove at the top end of the outer pipe (1), and the outer pipe (1) and the inner rod (4) are relatively locked by the locking device;
the method comprises the following steps that an outer pipe (1) is rotated to drive a hexagonal handle (5) at the bottom end of an inner rod (4), an outer hexagonal head at the bottom end of the hexagonal handle (5) is used for loosening a fastening screw of a neutron source bin, the hexagonal handle (5) is inserted into a lifting groove of the neutron source bin, the outer pipe (1) is rotated to enable a lifting pin (7) and the lifting groove to form a 90-degree direction, the neutron source bin is hooked out of a compensation neutron logging instrument, and the neutron source bin is pulled to a horizontal station vertical to the compensation neutron logging instrument;
taking out the neutron source assembling and disassembling device of the logging instrument, opening the locking device, sleeving the head hexagonal of the neutron source from the source tank by using a sleeve (3), pressing down the inner rod (4), enabling external threads at the top end of the inner rod (4) to contact a source lifting screw hole of the head of the neutron source, rotating the outer pipe (1), enabling the top end of the inner rod (4) to be in threaded connection with the neutron source, inserting the neutron source into a neutron source bin after taking out the neutron source, and rotating the outer pipe (1) to load the neutron source into the neutron source bin;
the outer tube (1) is loosened, the inner rod (4) resets under the action of the spring (8), the limiting pin (9) is clamped in the clamping groove at the top end of the outer tube (1), and the locking device is locked; a pulling pin (7) and a hexagonal head are used for pushing the neutron source bin to close into the compensated neutron logging instrument; the outer pipe (1) is rotated to drive a hexagonal handle (5) at the bottom end of the inner rod (4), and a fastening screw of the neutron source bin is screwed by using an outer hexagonal head at the bottom end of the hexagonal handle (5);
when the neutron source is disassembled: loosening a fastening screw of the neutron source bin by using a hexagonal head outside the bottom end of the hexagonal handle (5), inserting a lifting pin (7) into a groove of the neutron source bin, hooking the neutron source bin out of the compensated neutron logging instrument, and pulling the neutron source bin to a horizontal station vertical to the compensated neutron logging instrument;
taking out the neutron source loading and unloading device of the logging instrument, opening the locking device, sleeving a neutron source head hexagon on a neutron source bin by using a sleeve (3), pressing down an inner rod (4) to enable external threads at the top end of the inner rod (4) to contact a source lifting screw hole of the neutron source head, rotating an outer pipe (1), tensioning and taking out a neutron source, inserting the neutron source into a source tank, and rotating the outer pipe (1) to load the neutron source into the source tank;
the outer pipe (1) is loosened, the inner rod (4) is reset under the action of the spring (8), the locking device is locked, and the neutron source bin is pushed to be closed into the compensated neutron logging instrument by the aid of the lifting pin (7) and the hexagonal head; the outer pipe (1) is rotated to drive the hexagonal handle (5) at the bottom end of the inner rod (4), and the fastening screw of the neutron source bin is screwed by the outer hexagonal head at the bottom end of the hexagonal handle (5).
9. A method as claimed in claim 8, wherein in operation the radiation measuring apparatus (11) measures the current ambient radiation value, and when radiation is detected the radiation is sent to the processor which determines whether the detected value exceeds a threshold value, and if so, the indicator light (12) is turned on yellow, and if not, the indicator light (12) is turned on red.
10. The method of claim 9, wherein the staff card is scanned at a staff card scanning module (13) before operation, and after operation is completed, the wireless communication module sends staff information, GPS locator data, and ray radiation values to the background.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011183237.XA CN112388567B (en) | 2020-10-29 | 2020-10-29 | Neutron source loading and unloading device and method for logging instrument |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011183237.XA CN112388567B (en) | 2020-10-29 | 2020-10-29 | Neutron source loading and unloading device and method for logging instrument |
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| CN112388567A true CN112388567A (en) | 2021-02-23 |
| CN112388567B CN112388567B (en) | 2022-03-29 |
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| CN110948450A (en) * | 2019-11-29 | 2020-04-03 | 中国石油天然气集团有限公司 | Mounting and dismounting device and mounting and dismounting method |
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| CN112388567B (en) | 2022-03-29 |
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