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A device and method for collecting deep water samples in a borehole

A collection device and technology in a borehole, which are applied in the field of deep water sample collection devices in boreholes, can solve the problems of inability to accurately collect water samples at a specified depth, collision damage to the borehole wall, poor working reliability, etc., so as to improve sampling efficiency and improve efficiency. effect, prolong the service life, avoid the effect of reducing the work efficiency

Active Publication Date: 2022-07-12
INST OF KARST GEOLOGY CAGS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In view of the above analysis, the present invention aims to provide a device and method for collecting internally fixed deep water samples in boreholes, which are used to solve the problem of low sampling efficiency and poor functionality of existing internally fixed deep water sample collection devices for boreholes, which cannot accurately collect water samples at specified depths. Moreover, the device is easily displaced within the borehole during the sampling process, resulting in one or more of the problems of collision with the borehole wall, damage, short service life, and poor operational reliability.

Method used

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  • A device and method for collecting deep water samples in a borehole
  • A device and method for collecting deep water samples in a borehole
  • A device and method for collecting deep water samples in a borehole

Examples

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Embodiment 1

[0055] A specific embodiment of the present invention discloses a deep water sample collection device in a borehole, such as figure 1 shown, including:

[0056] Mounting frame 1, the mounting frame 1 is used to support the acquisition device;

[0057] The collection assembly 5 includes a collection cylinder 20 and a liquid level sensor 26. The collection cylinder 20 has a plurality of independent collection chambers. The collection chamber is provided with a suction port 22, a sample inlet port 37 and a sample outlet port 25. Through the suction port 22 Pumping air makes the collection chamber form a negative pressure, the sample inlet 37 is provided with a sample inlet switch assembly 23, and the collected samples are taken out from the sample outlet 25; the liquid level sensor 26 is fixed on the collection cylinder 20, and the liquid level sensor 26 The monitoring data to obtain the depth of water sample collection;

[0058] Take-up and pay-off mechanism, the take-up and p...

Embodiment 2

[0087] On the basis of the above-mentioned embodiment, the present invention proposes a deep water sample collection device in a borehole, further comprising a buffer member 27 . The buffer member 27 is arranged on the outer peripheral wall of the collection cylinder 20 , and the buffer member 27 is arranged to lower the depth of the water sample from the borehole wall. impact force for protection.

[0088] like Figure 8 As shown, the buffer member 27 includes a buffer frame 28, a telescopic member 29 and an elastic pad 30. The buffer frame 28 is arranged on the periphery of the collection cylinder 20, the height of the buffer frame 28 is greater than or equal to the height of the collection cylinder 20, and the elastic pad 30 is arranged on the buffer frame. One end of 28 away from the collection cylinder 20, the buffer frame 28 is connected to the outer peripheral wall of the collection cylinder 20 through a telescopic member 29, and the telescopic member 29 can elastically...

Embodiment 3

[0098] like Figure 4 As shown, on the basis of the above-mentioned embodiment, the present invention proposes a deep water sample collection device with a borehole. The drive assembly includes a second drive motor 16, a first gear 17, a second gear 18 and a third gear 19. The assembly can simultaneously drive the shaft 6 (that is, drive the winding roller 7 to rotate) and the lead screw 8 to rotate. Specifically, the second drive motor 16 is provided on the mounting frame 1, and the mounting The main shaft of the driving motor 16 extends into the installation cavity 15 and is connected with the second gear 18 by key; The first gear 17 and the third gear 19; the first gear 17 and the third gear 19 are meshed with the second gear 18 respectively. That is to say, the first end of the rotating shaft 6 extends into the installation cavity 15 and is keyed to the first gear 17, and the first end of the lead screw 8 extends into the installation cavity 15 and is keyed to the third g...

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Abstract

The invention relates to a deep water sample collection device and method in a borehole, belongs to the technical field of water sample collection, and solves the problems of low sampling efficiency and poor working reliability of the existing collection device. The collection device includes a mounting frame, a collection assembly, a take-up and pay-out mechanism and a controller. The collection assembly includes a collection cylinder with multiple collection chambers. The collection chamber is provided with a suction port, a sample inlet and a sample outlet, and the sample inlet is provided with an inlet. There is a liquid level sensor on the collection cylinder; the winding roller of the take-up and pay-out mechanism is rotatably arranged on the installation frame, the first end of the pulling wire is wound around the winding roller, and the second end passes through the wire assembly and the collection The component is connected, the driving component is used to drive the winding roller to rotate to realize the take-up and pay-off of the pulling wire, and the wire component is used to make the acquisition component located on the center line of the borehole; the controller is connected to the driving component and the injection switch component for communication . The present invention has the advantages of simple structure and convenient operation, can accurately collect water samples at a specified depth, and has high sampling efficiency.

Description

technical field [0001] The invention relates to the field of water sample collection equipment, in particular to a device and method for collecting deep water samples in a borehole. Background technique [0002] Hydrogeology, a branch of geology, refers to the phenomena of various changes and movements of groundwater in nature. Hydrogeology is the science of studying groundwater. It mainly studies the distribution and formation laws of groundwater, the physical properties and chemical composition of groundwater, and the Resources and their rational use, the adverse effects of groundwater on engineering construction and mining and its prevention and control, etc. With the development of science and the needs of production and construction, hydrogeology is further divided into regional hydrogeology, groundwater dynamics, hydrogeochemistry , water supply hydrogeology, mineral deposit hydrogeology, soil improvement hydrogeology and other branch disciplines. [0003] In order to...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21B49/08E21B47/047E21B23/14B01D35/02B01D29/64
CPCE21B49/082E21B23/14B01D35/02B01D29/6415B07B2201/04Y02A90/30
Inventor 任坤潘晓东彭聪焦友军曾洁梁嘉鹏
Owner INST OF KARST GEOLOGY CAGS
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