Isotope sampling device for geothermal well

Abstract

The utility model provides a geothermal well isotope sampling device and belongs to the technical field of isotope sampling. The sampling device body comprises a feeding hole, a screw cover, a discharge hole and a screw plug, and is connected with an air washing bottle through a PU (Polyurethane) pipe, so that a precipitation function in an isotope sampling process is realized; the discharge hole is arranged to be a vertical surface, so that the friction force between the sediment sample and the discharge hole of the sampling device is greatly reduced, the problems that the sediment sample is accumulated and settled at the lower part of the sampling device and the sample outlet is blocked are completely avoided, and meanwhile, the sample in the sample collection bottle is completely settled.

Description

Technical Field

[0001] The utility model belongs to the technical field of isotope sampling, and particularly relates to an isotope sampling device for a geothermal well. Background Art

[0002] In the prior art, during the sampling process of the manual isotope sampling device, due to the inclined plane at the sampling outlet position, the friction between the precipitated sample and the inclined plane increases, which easily causes the accumulation of precipitates, the upper part of the sampling collection bottle is hollow, and the sampling bottle cannot be filled with precipitates completely;

[0003] Furthermore, due to the problem of incomplete precipitation in the sampling bottle, the efficiency of field isotope sampling is low and the sampling is not standardized, the isotope parameters cannot be effectively obtained, and the progress of field work is affected. Summary of the Utility Model

[0004] The utility model aims at the problems of the manual isotope sampling device in the prior art, and provides an isotope sampling device for a geothermal well.

[0005] In order to achieve the above purpose, the technical solution adopted by this application is as follows:

[0006] An isotope sampling device for a geothermal well, comprising a sampling device body; a feeding port is opened at the top of the sampling device body; a screw cap matching with the feeding port is detachably arranged on the feeding port; a discharging port is opened at the bottom surface of the sampling device body, the discharging port is a vertical surface, and a screw plug matching with the discharging port is detachably arranged on the discharging port.

[0007] Preferably, a through hole is opened on the top surface of the screw cap, and a two-way ball valve with a quick connector is detachably installed in the through hole; the two-way ball valve is connected to an air washing bottle through a PU tube.

[0008] Preferably, a first sealing gasket is fixedly connected inside the screw cap, and the first sealing gasket contacts the outer wall of the feeding port; a sealing rubber ring is fixedly connected to the side surface of the screw plug, and the outer side surface of the sealing rubber ring contacts the inner wall of the discharging port; a second sealing gasket is fixedly connected to the inner wall of the air washing bottle, and the PU tube passes through the second sealing gasket and enters the air washing bottle.

[0009] Preferably, a gas diffusing head with a quick connector is arranged inside the air washing bottle.

[0010] Preferably, a connecting piece with a drain pipe is fixedly connected to the side surface of the discharging port of the sampling device body; a thread matching with the screw plug is arranged on the inner side surface of the connecting piece.

[0011] Preferably, brackets are detachably installed on the front and rear side surfaces of the sampling device body, and the brackets are telescopic rods.

[0012] Preferably, handle parts are fixedly connected to the left and right sides of the sampling device body respectively.

[0013] Preferably, a rubber ring is fixedly connected to the side of the sampling device body.

[0014] Compared with the prior art, the advantages and positive effects of the present utility model are as follows:

[0015] In a geothermal well isotope sampling device of the present utility model, by providing a sampling device body including a feeding port, a screw cap, a discharging port, a screw plug, and an air washing bottle connected through a PU tube, the precipitation function in the isotope sampling process is realized; the discharging port is set as a vertical surface, ensuring that the friction between the precipitated sample and the discharging port of the sampling device is greatly reduced, completely avoiding the problems of the precipitated sample accumulating and blocking the sample outlet at the lower part of the sampling device, and at the same time enabling the sample in the sample collection bottle to precipitate completely. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following-described drawings are some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0017] Figure 1 It is a structural schematic diagram of the present utility model;

[0018] Figure 2 It is a structural schematic diagram of the present utility model when the screw plug is removed;

[0019] Figure 3 It is a structural schematic diagram of the sample collection bottle in the present utility model;

[0020] In the above figures, 1, sampling device body; 2, feeding port; 3, screw cap; 4, discharging port; 5, screw plug; 6, two-way ball valve; 7, PU tube; 8, air washing bottle; 9, first sealing gasket; 10, sealing rubber ring; 11, second sealing gasket; 12, air diffuser head; 13, connecting piece; 14, bracket; 15, sample collection bottle; 16, handle part; 17, rubber ring. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] In order to more clearly understand the above objects, features and advantages of the present utility model, the following further illustrates the present utility model with reference to the drawings and embodiments. It should be noted that, without conflict, the embodiments of the present application and the features in the embodiments can be combined with each other.

[0022] In the following description, many specific details are set forth in order to provide a thorough understanding of the present utility model. However, the present utility model may also be implemented in other ways different from those described herein. Therefore, the present utility model is not limited by the limitations of the specific embodiments disclosed in the following specification.

[0023] Example 1, as Figure 1 shown, a geothermal well isotope sampling device of the present application includes a sampling device body 1; a feeding port 2 is provided at the top of the sampling device body 1; a spiral cap 3 that matches the feeding port 2 is detachably arranged on the feeding port 2; a discharge port 4 is provided at the bottom surface of the sampling device body 1, the discharge port 4 is a vertical surface, and a spiral plug 5 that matches the discharge port 4 is detachably arranged on the discharge port 4;

[0024] A through hole is provided on the top surface of the spiral cap 3, and a two-way ball valve 6 with a quick connector is detachably installed in the through hole; the two-way ball valve 6 is connected to an air washing bottle 8 through a PU tube 7;

[0025] A first sealing gasket 9 is fixedly connected inside the spiral cap 3, and the first sealing gasket 9 contacts the outer wall of the feeding port 2; a sealing rubber ring 10 is fixedly connected to the side surface of the spiral plug 5, and the outer side surface of the sealing rubber ring 10 contacts the inner wall of the discharge port 4; a second sealing gasket 11 is fixedly connected to the inner wall of the air washing bottle 8, and the PU tube 7 passes through the second sealing gasket 11 and enters the air washing bottle 8;

[0026] A diffuser head 12 with a quick connector is arranged inside the air washing bottle 8;

[0027] A connecting piece 13 with a drain pipe is fixedly connected to the side surface of the sampling device body 1 at the discharge port 4; the connecting piece 13 includes a straight section fixedly connected to the outer side surface of the discharge port 4 of the sampling device body 1, a baffle section extending into the sampling device body 1, and a drain pipe with a valve communicating with the inside of the sampling device body 1. The baffle section is fixedly connected to the inner side surface of the straight section at one-third from top to bottom; a thread that matches the spiral plug 5 is provided on the inner side surface of the connecting piece 13; specifically, in this embodiment, the discharge port 4 is detachably arranged with the spiral plug 5 through the connecting piece 13; during use, the spiral plug 5 is screwed into the sampling device body 1 through the discharge port 4. After being completely tightened, the sealing rubber ring 10 contacts the inner side surface of the straight section of the connecting piece 13, and the top surface of the spiral plug 5 contacts the bottom surface of the baffle section;

[0028] Brackets 14 are detachably installed on the front and rear side surfaces of the sampling device body 1, and the brackets 14 are telescopic rods;

[0029] It further includes a sample collection bottle 15 with an opening matching the size of the discharge port; a thread that matches the inner side surface of the straight section of the connecting piece 13 is provided at the bottle mouth of the sample collection bottle 15;

[0030] On the left and right sides of the main body 1 of the sampling device, there are respectively fixedly connected with handle grips 16

[0031] On the outer side of the main body 1 of the sampling device, there is fixedly connected with a rubber ring 17. Specifically, the rubber ring 17 is wound around the outer side of the main body 1 of the sampling device; in this embodiment, there are two rubber rings 17, which are respectively arranged above and below the handle grip 16. Among them, the rubber ring 17 below the handle grip 16 is arranged in the middle of the main body 1 of the sampling device, and the thickness of the rubber ring 17 is greater than the length of the handle grip 16; during use, the rubber ring 17 can prevent the main body 1 of the sampling device from being knocked when it rolls and shakes on the ground;

[0032] During use, first wash the main body 1 of the sampling device three times with sampling water, insert the sampling water pipe into the bottom of the main body 1 of the sampling device, control the speed of water injection into the bucket, not too fast, and the water surface slowly rises until at least ten liters of water overflows from the feeding port 2, and then cover the screw cap 3;

[0033] Subsequently, after determining that the air washing bottle 8 is connected well, open the drain valve of the connecting piece 13 to drain ten liters of water to leave space for adding medicine and shaking in the main body 1 of the sampling device. After draining, close the drain valve of the connecting piece 13; quickly open the screw cap 3, add 2 grams of ferrous sulfate to the bucket, then tighten the screw cap 3, and shake the main body 1 of the sampling device violently for at least two minutes to fully dissolve the ferrous sulfate;

[0034] Subsequently, open the screw cap 3, add saturated NaOH solution or 30 - 50 grams of NaOH particles to the main body 1 of the sampling device, cover the screw cap 3 tightly and shake violently for at least 30 seconds;

[0035] Open the screw cap 3, pour the dissolved barium chloride solution into the main body 1 of the sampling device, then cover the screw cap 3 tightly and shake violently for at least 3 minutes;

[0036] Open the screw cap 3, add 20 milliliters of 5‰ polyacrylamide solution to the bucket, and shake violently for at least 2 minutes;

[0037] After removing the air washing bottle 8, first invert the sampling device, replace the screw plug 5 with the sample collection bottle 15 and tighten it; then install the support 14, and the sampling device is fixed and left standing through the support 14 to wait for complete precipitation;

[0038] After complete precipitation, open the drain valve of the connecting piece 13 to drain the liquid until the water no longer flows out, then remove the sample collection bottle 15. Since the discharge port 4 is a vertical surface, the precipitation sample in the sample collection bottle 15 completely avoids the problems of precipitation and blockage of the sample outlet at the lower part of the sampling device; at the same time, the sample in the sampling bottle is completely precipitated, improving the work efficiency.

[0039] The above are only the preferred embodiments of the present utility model, and do not limit the present utility model in other forms. Any person skilled in the relevant art may use the disclosed technical content to make changes or modifications into equivalent embodiments with equivalent changes and apply them to other fields. However, as long as it does not depart from the technical solution content of the present utility model, any simple modification, equivalent change and modification made to the above embodiments based on the technical essence of the present utility model still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A geothermal well isotope sampling device, characterized in that: The sampling device comprises a sampling device body (1); a feeding port (2) is provided on the top of the sampling device body (1); a screw cover (3) which matches the feeding port (2) is detachably provided on the feeding port (2); a discharge port (4) is provided on the bottom surface of the sampling device body (1); the discharge port (4) is a vertical surface; a screw plug (5) which matches the discharge port (4) is detachably provided on the discharge port (4); A connector (13) with a drain pipe is fixedly connected to the side of the discharge port (4) of the sampling device body (1); a thread matching the screw plug (5) is arranged on the inner side of the connector (13); the discharge port (4) is detachably arranged with the screw plug (5) via the connector (13).

2. A geothermal well isotope sampling device according to claim 1, characterized in that: The top surface of the screw cap (3) is provided with a through hole, in which a two-way ball valve (6) with a quick-insert connector is detachably installed; the two-way ball valve (6) is connected to an air washing bottle (8) via a PU tube (7).

3. A geothermal well isotope sampling device according to claim 2, characterized in that: A first sealing rubber pad (9) is fixedly connected to the inside of the screw cap (3), and the first sealing rubber pad (9) is in contact with the outer wall of the feeding port (2); a sealing rubber ring (10) is fixedly connected to the side of the screw plug (5), and the outer side surface of the sealing rubber ring (10) is in contact with the inner wall of the discharge port (4); a second sealing rubber pad (11) is fixedly connected to the inner wall of the air washing bottle (8), and the PU tube (7) passes through the second sealing rubber pad (11) and enters the air washing bottle (8).

4. A geothermal well isotope sampling device according to claim 3, characterized in that: The air washing bottle (8) is provided with a built-in air diffuser (12) with a quick-connect connector.

5. The geothermal well isotope sampling device according to claim 1, characterized in that: Brackets (14) are detachably mounted on the front and rear sides of the sampling device body (1), and the bracket (14) is a telescopic rod.

6. The geothermal well isotope sampling device according to claim 1, characterized in that: The left and right side surfaces of the sampling device body (1) are respectively fixedly connected with buckles (16).

7. The geothermal well isotope sampling device according to claim 1, characterized in that: A rubber ring (17) is fixedly connected to the side of the sampling device body (1).

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