A spiral constant flow probe for soil measurement of a radon meter

Abstract

The utility model discloses a spiral constant flow probe for radon survey meter soil survey belongs to nuclear radiation detection technical field, including intermediate connecting piece, and the bottom end detachable connection of intermediate connecting piece has the gas guide main pipe, and the upper surface of intermediate connecting piece is provided with the flowmeter connecting hole and short stick connecting hole, and the bottom end of intermediate connecting piece is the circular truncated cone structure and is provided with the outer thread, and the gas flowmeter is connected with radon survey meter still, and the bottom end of intermediate connecting piece is the circular truncated cone structure and is provided with the outer thread, and the utility model sets up and has the intermediate connecting piece of thread, and the leakproofness between intermediate connecting piece can pass through the thread promotion and the detection soil, to make the measurement result more accurate.

Description

Technical Field

[0001] This utility model belongs to the field of nuclear radiation detection technology, specifically relating to a spiral constant current probe for soil measurement using a radon detector. Background Technology

[0002] When using a radon meter to measure soil radon concentration in the field, a uniform sampling and gas extraction time is usually determined experimentally to ensure work efficiency and consistency of results. Factors such as soil porosity, moisture content, and diffusion coefficient can affect the instrument's gas extraction rate, thus influencing the measurement results. Furthermore, the standard probe provided with the instrument may have sealing issues, further affecting the measurement results. Therefore, providing a spiral constant-flow probe for radon meter soil measurements is a problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0003] The main objective of this invention is to provide a spiral constant-flow probe for soil measurement in a radon analyzer, thereby solving the aforementioned technical problems. The device features a threaded intermediate connector, which improves the seal between the connector and the soil being measured, resulting in more accurate measurement results.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A spiral constant flow probe for soil measurement with a radon detector includes an intermediate connector. The bottom end of the intermediate connector is detachably connected to a gas guide pipe. The intermediate connector is provided with a flow meter connection hole and a short rod connection hole. A gas flow meter and a connecting short rod are respectively connected to the intermediate connector through the flow meter connection hole and the short rod connection hole. The gas flow meter is also connected to the radon detector. The bottom end of the intermediate connector has a frustum-shaped structure and is provided with external threads.

[0006] Furthermore, the gas flow meter has a connector at one end and an interface pipe at the other end. The gas flow meter is connected to the flow meter connection hole on the intermediate connector through the connector, and the gas flow meter is connected to the inlet hose of the radon detector through the interface pipe.

[0007] Furthermore, the outer wall of the main air guide pipe is provided with multiple vent holes. The main air guide pipe is formed by connecting the air guide tail pipe and multiple air guide branch pipes. An ellipsoidal block is connected to the bottom end of the air guide tail pipe. Multiple vent holes are provided at the bottom end of the outer wall of the air guide tail pipe. The multiple air guide branch pipes are connected end to end. The top end of the multiple air guide branch pipes after connection is connected to the intermediate connector. The bottom end of the multiple air guide branch pipes after connection is connected to the air guide tail pipe.

[0008] Compared with the prior art, the present invention has the following beneficial effects:

[0009] This utility model is equipped with a threaded intermediate connector, which can improve the sealing between the intermediate connector and the soil being tested through the thread, thereby making the measurement results more accurate; it can connect to air guide pipes of different lengths according to different soil depths, thereby improving the accuracy of the measurement results; the ellipsoidal block connected to the air guide tail pipe can prevent the air vent from being blocked by the soil; the gas flow meter can detect and control the gas flow, making the gas flow more uniform. Attached Figure Description

[0010] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0011] Figure 1 This is a schematic diagram of the structure of this utility model.

[0012] Figure 2 This is a side view of the present invention.

[0013] Figure 3 This is a schematic diagram of the probe's structure.

[0014] Figure 4 This is a schematic diagram of the structure connecting the short rods.

[0015] Figure 5 This is a schematic diagram of a gas flow meter.

[0016] Among them, 1-intermediate connector, 2-connecting short rod, 3-gas flow meter, 3.1-connector, 4-gas main pipe, 5-vent hole, 6-flow meter connection hole. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] like Figures 1-5As shown, this utility model provides a spiral constant flow probe for soil measurement with a radon detector, including an intermediate connector 1. The bottom end of the intermediate connector 1 is detachably connected to a gas guide pipe 4. The intermediate connector 1 is provided with a flow meter connection hole 6 and a short rod connection hole. The intermediate connector 1 is connected to a gas flow meter 3 and a connecting short rod 2 through the flow meter connection hole 6 and the short rod connection hole, respectively. The gas flow meter 3 is also connected to the radon detector. The gas guide pipe 4 can be designed with different lengths to measure soil at different depths. The bottom end of the intermediate connector 1 has a frustum-shaped structure and is provided with external threads. The threads can be used to fix the intermediate connector 1 to the soil. After the threads are screwed into the soil, the sealing between the intermediate connector 1 and the soil can be improved. The intermediate connector 1 is provided with a gas communication hole. The two ends of the gas communication hole are connected to the gas guide pipe 4 and the gas flow meter 3 through threads, respectively, so that the gas guide pipe 4 and the gas flow meter 3 can communicate with each other.

[0019] In this embodiment, the gas flow meter 3 is provided with a connector 3.1 at one end and an interface pipe at the other end. The gas flow meter 3 is connected to the flow meter connection hole 6 on the intermediate connector 1 through the connector 3.1. The gas flow meter 3 is connected to the inlet hose of the radon detector through the interface pipe. The gas flow meter 3 can be used to record (or adjust) the pumping flow rate of the radon detector to ensure the consistency of the measurement results.

[0020] In this embodiment, the outer wall of the main gas-conducting pipe 4 is provided with multiple ventilation holes 5, which can be used to guide gas in the soil into the main gas-conducting pipe 4. The main gas-conducting pipe 4 is formed by connecting a tail gas-conducting pipe and multiple branch gas-conducting pipes. The tail gas-conducting pipe is located at the bottom end, and an ellipsoidal block is connected to the bottom end of the tail gas-conducting pipe. Ventilation holes 5 are provided at the bottom end of the outer wall of the tail gas-conducting pipe. The multiple branch gas-conducting pipes are connected to each other by threaded connection. The top end of the multiple branch gas-conducting pipes is connected to the middle connector 1, and the bottom end is connected to the tail gas-conducting pipe. The branch gas-conducting pipes have a cylindrical structure, and the tail gas-conducting pipe has a hollow structure inside, which can realize the guidance of gas in the soil. Specifically, in this embodiment, one branch gas-conducting pipe is connected to the tail gas-conducting pipe. In addition, multiple tail gas-conducting pipes can be connected according to different detection depths.

[0021] Working principle: First, drill a hole vertically in the soil to be measured using a steel rod (the hole diameter is significantly larger than the diameter of the main gas pipe 4, and the depth is greater than the length of the main gas pipe 4). Then, connect the intermediate connector 1 to the main gas pipe 4 to form a probe. After connecting, insert it into the drilled hole. After the thread at the bottom of the intermediate connector 1 contacts the soil, insert the connecting rod 2 and rotate it to firmly fix the intermediate connector 1 in the soil without gaps. Then, connect the inlet hose of the radon detector (α-energy spectrum radon gas detector) to the inlet hose of the gas flow meter 3. Turn on the instrument to start the measurement, record the readings, or adjust the inlet flow rate using the gas flow meter 3. Finally, complete the measurement. When removing the probe, use the connecting rod 2 to rotate in the opposite direction and pull the probe out.

[0022] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on its differences from other embodiments. Similar or identical parts between embodiments can be referred to interchangeably. For the apparatus disclosed in the embodiments, since they correspond to the methods disclosed in the embodiments, the description is relatively simple; relevant parts can be referred to the method section.

[0023] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A spiral constant-current probe for soil measurement with a radon detector, characterized in that, The device includes an intermediate connector (1), the bottom end of which is detachably connected to a gas guide pipe (4). The intermediate connector (1) is provided with a flow meter connection hole (6) and a short rod connection hole. The intermediate connector (1) is connected to a gas flow meter (3) and a connecting short rod (2) through the flow meter connection hole (6) and the short rod connection hole, respectively. The gas flow meter (3) is also connected to a radon detector. The bottom end of the intermediate connector (1) is a frustum-shaped structure and is provided with an external thread.

2. The spiral constant-flow probe for soil measurement with a radon detector according to claim 1, characterized in that, The gas flow meter (3) has a connector (3.1) at one end and an interface pipe at the other end. The gas flow meter (3) is connected to the flow meter connection hole (6) on the intermediate connector (1) through the connector (3.1). The gas flow meter (3) is connected to the inlet hose of the radon detector through the interface pipe.

3. A spiral constant-flow probe for soil measurement with a radon detector according to claim 1, characterized in that, The outer wall of the main air guide pipe (4) is provided with multiple air vents (5). The main air guide pipe (4) is formed by connecting the air guide tail pipe and multiple air guide branches. The bottom end of the air guide tail pipe is connected to an ellipsoidal block. The bottom end of the outer wall of the air guide tail pipe is provided with multiple air vents (5). The multiple air guide branches are connected end to end. The top end of the multiple air guide branches after connection is connected to the middle connector (1). The bottom end of the multiple air guide branches after connection is connected to the air guide tail pipe.

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