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CN-121977879-A - Geological isotope survey sample collection device

CN121977879ACN 121977879 ACN121977879 ACN 121977879ACN-121977879-A

Abstract

The invention relates to the technical field of geological detection, in particular to a geological isotope determination sample collection device which comprises a sampling sleeve, wherein a traction lifting frame is arranged in the middle of the sampling sleeve in a sliding connection mode, and the geological isotope determination sample collection device also comprises a sealing connecting disc which is symmetrically arranged on the upper side and the lower side of the traction lifting frame, and the sealing connecting disc is matched with the sampling sleeve in size. The invention forms a closed pipe bin through the sampling sleeve, and the sampling mechanism is totally nested and arranged in the closed pipe bin, so that the pollution of the external environment to the internal sampling mechanism is avoided in the moving and transporting process of the device, and when sampling is carried out, the sampling position of the sampling well is scraped by digging and scraping the well wall with a certain thickness by driving the plurality of vertical scrapers to clean the well wall, so that the sample which is polluted by the earlier stage well is prevented from being collected, the pollution of the external environment to the sample is prevented to the greatest extent, and the reliability of sample collection and the accuracy of subsequent isotope measurement are improved.

Inventors

  • TENG JIAYI
  • YANG YONGQIANG
  • QIU LONGWEI

Assignees

  • 中国石油大学(华东)

Dates

Publication Date
20260505
Application Date
20260403

Claims (10)

  1. 1. A geological isotope assay sample collection device, including sampling sleeve (1) and traction crane (205) of sliding connection on it, its characterized in that still includes: The sealing connection disc (2) is vertically symmetrically arranged on the traction lifting frame (205) and is matched with the sampling sleeve (1) in size, the upper sealing connection disc (2) is connected with an external conveying pipe (201), a plurality of cleaning conveying pipes (203) with cleaning nozzles (204) are arranged below the lower sealing connection disc (2), and the external conveying pipes (201) are communicated with all the cleaning conveying pipes (203); The central sampling tube (3) is arranged at the center of the closed connecting disc (2) in a penetrating connection manner, a plurality of cleaning conveying pipes (203) are uniformly distributed around the central sampling tube, a circulating conveying pump (302) is arranged in the central sampling tube (3), and a conveying inlet (301) positioned below the lower closed connecting disc (2) is arranged at the bottom of the central sampling tube (3); The spacing connecting disc (8) is connected with the bottom end of the central sampling tube (3), elastic sealing bags (801) are respectively arranged between the spacing connecting disc (8) and the side wall of the sealing connecting disc (2) arranged at the lower side in a surrounding manner, and the elastic sealing bags (801) are mutually communicated with the external conveying tube (201); The driving motor (802) is installed and arranged in the middle of the interval connecting disc (8), a central connecting frame (803) is arranged at the shaft end of the driving motor (802), a plurality of horizontal guide rails (9) are evenly arranged on the outer side of the central connecting frame (803) in a surrounding mode, a sliding connecting seat (901) is arranged on the outer side of each horizontal guide rail (9) in a sliding mode, a vertical scraping plate (904) is arranged on the outer side of each sliding connecting seat (901) in a connecting mode, and a conical base (804) matched with the size of the sampling sleeve (1) is connected to the bottom end of the central connecting frame (803).
  2. 2. The geological isotope determination sample collection device according to claim 1, wherein a lifting guide frame (102) is vertically connected to the top end of the sampling sleeve (1), a lifting screw rod (103) is vertically arranged in the middle of the lifting guide frame (102), a lifting motor (104) is connected to the shaft end of the lifting screw rod (103), a lifting screw sleeve (206) is connected to the top end of the traction lifting frame (205), and the traction lifting frame (205) is connected with the lifting screw rod (103) through the lifting screw sleeve (206).
  3. 3. The geological isotope determination sample collection device according to claim 1, wherein the vertical scraping plate (904) is in sliding connection with the horizontal guide rail (9) through a sliding connection seat (901), a reset spring (902) is arranged in the middle of the sliding connection seat (901), a plurality of digging scraping teeth (905) are uniformly distributed at the outer side edge of the vertical scraping plate (904), a guide inclined plane (903) is arranged at the bottom end of the sliding connection seat (901), a conical adjusting block (805) is arranged in the middle of the central connecting frame (803) in a sliding connection manner, the conical surface of the conical adjusting block (805) is mutually attached to the guide inclined plane (903), a telescopic adjusting rod (806) is arranged in the middle of the conical adjusting block (805), and the upper end and the lower end of the telescopic adjusting rod (806) are respectively connected with the conical adjusting block (805) and the central connecting frame (803) mutually.
  4. 4. The geological isotope determination sample collection device according to claim 1, wherein a sealed backflow bin (202) is formed between the sealing connection discs (2) on the upper side and the lower side of the traction lifting frame (205) symmetrically, the top ends of all cleaning conveying pipes (203) are mutually communicated with the sealed backflow bin (202), a plurality of sampling interfaces (305) are arranged on the upper side wall of the central sampling pipe (3), the circulating conveying pump (302) comprises a circulating impeller (303), the circulating impeller (303) is arranged on the inner side of the central sampling pipe (3) in a jogged and rotated mode, a pumping motor (304) is arranged on the shaft end of the circulating impeller (303) in a connected mode, the pumping motor (304) is fixedly connected with the central sampling pipe (3), water is pumped into the central sampling pipe (3) through a conveying inlet (301) through rotation, then is discharged into the sealed backflow bin (202) through the sampling interfaces (305), and is further conveyed to the cleaning conveying pipes (203) to be sprayed out of nozzles (204).
  5. 5. The geological isotope determination sample collection device according to claim 4, wherein a unit sampling cylinder (4) is connected and arranged at the outer side of the sampling interface (305), a closed sampling bin (402) is arranged inside the unit sampling cylinder (4), a threaded connecting sleeve (401) is further arranged around the outer side of the inner end of the unit sampling cylinder (4), a threaded connecting ring (306) is arranged around the middle of the sampling interface (305), and the unit sampling cylinder (4) is detachably connected with the sampling interface (305) in a closed mode through the threaded connecting sleeve (401) and the threaded connecting ring (306).
  6. 6. The geological isotope determination sample collection device according to claim 5, wherein the inner end and the outer end of the unit sampling cylinder (4) are respectively provided with a conical inlet (403) and a conical outlet (404), the two ends of the closed sampling bin (402) are respectively communicated with the sampling interface (305) and the sealed reflux bin (202) through the conical inlet (403) and the conical outlet (404), the sampling piston (5) is arranged in the sealed sampling bin (402) in a sliding manner, a sampling filter screen (501) is arranged in the middle of the sampling piston (5), a sealing connecting rod (502) is arranged at the center of the inner side surface of the sampling piston (5) in a connecting manner, an inlet sealing plug (505) is arranged at the inner end of the sealing connecting rod (502) in a connecting manner, and an outlet sealing plug (506) is arranged at the center of the outer side surface of the sampling piston (5) in a connecting manner, and the size of the inlet sealing plug (505) and the conical outlet (404) are respectively matched with each other.
  7. 7. The geological isotope determination sample collection device according to claim 6, wherein a jogged locking groove (503) is arranged in the middle of the closed connecting rod (502), a locking inclined plane (504) is arranged on the inner side of the jogged locking groove (503), a sliding locking sleeve (6) is horizontally arranged in the middle of the cylinder wall of the unit sampling cylinder (4), a jogged locking pin (601) is arranged in the inner side of the sliding locking sleeve (6) in a nested sliding manner, a jacking inclined plane (602) is arranged at the inner end of the jogged locking pin (601), the jogged locking pin (601) is mutually attached to the closed connecting rod (502) through the jacking inclined plane (602) and the locking inclined plane (504), a locking spring (603) is also arranged on the inner side of the sliding locking sleeve (6) in a nested manner, and a closed spring (405) is arranged on the inner side of the sampling piston (5).
  8. 8. The geological isotope determination sample collection device according to claim 7, wherein an adjusting opening (604) is arranged at the outer end of the sliding locking sleeve (6), an adjusting bolt (605) is arranged at the inner side of the adjusting opening (604) through threaded jogged connection, and the jogged locking pin (601) and the adjusting bolt (605) are respectively positioned at the inner side and the outer side of the locking spring (603).
  9. 9. The geological isotope determination sample collection device according to claim 8, wherein an adjusting piston (7) is arranged on the inner side of the central sampling tube (3) in a nested sliding manner, the adjusting piston (7) is located on the upper side of the circulating impeller (303), the adjusting piston (7) and the central sampling tube (3) are mutually matched in size, a lifting connecting frame (704) is connected and arranged above the adjusting piston (7), a hydraulic telescopic rod (705) is arranged above the lifting connecting frame (704), the upper end and the lower end of the hydraulic telescopic rod (705) are respectively connected with the central sampling tube (3) and the lifting connecting frame (704), and the hydraulic telescopic rod (705) drives the adjusting piston (7) to move up and down along the central sampling tube (3) through the lifting connecting frame (704).
  10. 10. The geological isotope determination sample collection device according to claim 9, wherein a communication inlet (701) and a communication outlet (702) are respectively arranged in the middle of the bottom surface and the side wall of the adjusting piston (7), the communication inlet (701) and the communication outlet (702) are mutually communicated, a rotating motor (703) is arranged in the middle of the lifting connecting frame (704), and the adjusting piston (7) is mutually connected with the shaft end of the rotating motor (703).

Description

Geological isotope survey sample collection device Technical Field The invention relates to the technical field of geological detection, in particular to a geological isotope determination sample collection device. Background The geological isotope analysis technology plays a central role in revealing the history of the earth and other satellites, the change of the ancient environment, the formation process of a mineral deposit, the life origin and evolution and the like, and particularly, the application of the isotope technology is particularly critical when researching key geological events such as late-period SPICE events in the eastern portion of the north China plate, wherein the SPICE events refer to the occurrence of remarkable transient fluctuation of certain isotope ratios in the ocean of the earth in late-period of the barren China, and the phenomenon is widely considered to be closely related to the change of ocean chemistry and environment in the global scope at the moment, so that the accurate measurement of the isotope ratio in the ancient ocean sample related to the SPICE events has important significance for understanding the change of the earth environment in late-period of the barren China and the response of an ecosystem thereof. The conventional sample collection device has many problems in the face of research on complex geological events such as SPICE events, especially in the process of collecting marine and sediment samples in key geological periods such as late-stage of the eastern british and the wary, including low sample collection efficiency, sample pollution and insufficient accuracy of sampling positions, and is difficult to collect and store samples efficiently and accurately, the samples are easy to pollute and change in the processes of collection, transportation and pretreatment, and especially in the case of needing high-fidelity and representative samples for fine isotope ratio analysis, tiny pollution can lead to errors of detection data. Disclosure of Invention Therefore, the invention aims to provide a sample collection device for geological isotope determination, which solves the problems that the current sample collection device is difficult to collect and store samples efficiently and accurately, the samples are easy to be polluted and changed in the collection process, and the subsequent isotope determination of the samples is inaccurate. Based on the above object, the present invention provides a geological isotope measurement sample collection device, which comprises a sampling sleeve and a traction lifting frame slidingly connected with the sampling sleeve, and is characterized by further comprising: The upper side sealing connecting disc is connected with an external conveying pipe, a plurality of cleaning conveying pipes with cleaning nozzles are arranged below the lower side sealing connecting disc, and the external conveying pipes are communicated with all the cleaning conveying pipes; The central sampling pipe is arranged at the center of the closed connecting disc in a penetrating way, a plurality of cleaning conveying pipes are uniformly distributed around the central sampling pipe, a circulating conveying pump is arranged in the central sampling pipe, and a conveying inlet positioned below the lower closed connecting disc is arranged at the bottom of the central sampling pipe; The interval connecting disc is connected with the bottom end of the central sampling tube, elastic sealing bags are respectively arranged between the interval connecting disc and the side wall of the sealing connecting disc arranged at the lower side in a surrounding manner, and the elastic sealing bags are mutually communicated with the external conveying tube; The driving motor is arranged in the middle of the interval connecting disc, a central connecting frame is arranged at the shaft end of the driving motor in a connecting mode, a plurality of horizontal guide rails are evenly arranged on the outer side of the central connecting frame in a surrounding mode, a sliding connecting seat is arranged on the outer side of each horizontal guide rail in a sliding mode, a vertical scraping plate is arranged on the outer side of each sliding connecting seat in a connecting mode, and the bottom end of the central connecting frame is connected with a conical base matched with the size of the sampling sleeve. Further, the vertical connection in top of sampling sheathed tube is provided with the lift leading truck, the vertical lift lead screw that is provided with in centre of lift leading truck, the axle head connection of lift lead screw is provided with elevator motor, the top connection of traction lifting frame is provided with the lift swivel nut, traction lifting frame passes through lift swivel nut and lift lead screw interconnect. Further, vertical scraper blade passes through sliding connection seat and horizontal guide rail sliding connection, sliding connection seat's interm