CN113984603A - Low water content and H isotope composition simulated lunar soil preparation experimental device - Google Patents

Abstract

The invention discloses an experimental device for preparing simulated lunar soil with low water content and H isotope composition, which comprises a glove box, a lunar soil cup, a liquid nitrogen refrigerating tank, a water vapor generating device and a gas conveying pipe. The invention has the advantage of being capable of simulating the formation process of the water-containing ice lunar soil in a low-temperature and near-lunar environment.

Description

Low water content and H isotope composition simulated lunar soil preparation experimental device

Technical Field

The invention relates to a lunar soil preparation experimental device simulating low water content and H isotope composition.

Background

Water plays a key role in the process of moon formation and evolution, is related to all primary problems of moon science, and is also regarded as an important extraterrestrial resource to be paid attention by various planet exploration countries. The past remote sensing detection task indicates that the permanent shadow areas of the two poles of the moon contain water ice with the content of about 10¹¹kg, these water ices may originate from the implantation of solar wind protons, the impact of water-containing asteroids, lunar volcanic eruptions, interstellar ice particles, etc., and the H isotope may be the source of key evidence indicators. At present, the detection result is still controversial, so that unmanned in-situ detection or mining tasks aiming at water ice become the primary target of future deep space detection. Before that timeGround related experiments are required to understand the relevant properties of water ice and lunar soil, however, no preparation technology simulating water ice lunar soil in a lunar environment exists at present.

Disclosure of Invention

In order to solve the technical problems, an experimental device for preparing simulated lunar soil with low water content and H isotope composition is provided. The system comprises a glove box, a lunar soil cup, a liquid nitrogen refrigerating tank, a water vapor generating device and a gas transmission pipe.

The glove box comprises a main box body and a transition bin, wherein the main box body is internally provided with a thermometer, a hygrometer and an analytical balance, the bottom of the main box body is penetrated by a lunar soil cup, and the transition bin is provided with a heating plate; the inner wall of the lunar soil cup contains a temperature probe, the upper part of the lunar soil cup is positioned in the glove box main box body, the lower part of the lunar soil cup is positioned outside the main box body, and the lower part of the lunar soil cup is wrapped by a liquid nitrogen refrigeration tank; the water vapor generating device is positioned outside the glove box, is provided with water and a heavy water sealing bottle, and is connected with the lunar soil cup in the glove box main box body through a gas transmission pipe; the liquid nitrogen refrigeration tank is provided with an air outlet.

The invention has the beneficial effects that: the invention provides an experimental device for preparing low-water-content and H-isotope composition simulated lunar soil, which helps to realize the preparation of low-water-content simulated lunar soil, provides a base material for ground related experiments, and provides technical support for the water ice composition and H-isotope measurement calibration of a subsequent lunar permanent shadow region.

Drawings

FIG. 1: the internal structure diagram of the main body of the experimental device for preparing the simulated lunar soil is composed of low water content and H isotopes;

FIG. 2: a control schematic diagram of an experimental device for simulating lunar soil preparation with low water content and H isotope composition;

FIG. 3: an experimental method general flow chart of a simulated lunar soil preparation experimental device with low water content and H isotope composition.

Detailed Description

As shown in figure 1, the experimental device for preparing the lunar soil simulation with low water content and H isotope composition comprises a glove box, a lunar soil cup 2, a liquid nitrogen refrigerating tank 4, a water vapor generating device 3, agas conveying pipe 9 and corresponding control equipment. The glove box comprises a main box body 1 and a transition bin 6, wherein the main box body 1 is of a sealed box body structure, inert gas is filled in the main box body 1, and the front side of the main box body 1 is provided with a manual operation hole for operating gloves in sealing connection; transition bin 6 sets up in main tank body one side, is equipped withhot plate 10 in the transition bin 6. The thermometer, thehygrometer 12 and theanalytical balance 5 are arranged in the main box body, the lunar soil cup 2 vertically penetrates through the bottom of the main box body 1 of the glove box, the upper portion of the lunar soil cup 2 is located in the main box body 1, and the lower portion of the lunar soil cup 2 is located outside the main box body 1 of the glove box; the inner wall of the lunar soil cup contains atemperature probe 11, and the liquid nitrogen refrigeration tank 4 wraps the lower part of the lunar soil cup 2 outside the main box body 1. The water vapor generating device 3 is located outside a glove box main box body, the water vapor generating device 3 is provided with awater sealing bottle 7 and a heavywater sealing bottle 8, and water and heavy water are mixed by the water vapor generating device to form water vapor consisting of fixed H isotopes. Thegas transmission pipe 9 penetrates through the glove box main box body 1 from the side face, the terminal of thegas transmission pipe 9 is placed in the lunar soil cup 2, and the water vapor generation device 3 is connected with the lunar soil cup 2 in the glove box main box body 1 through thegas transmission pipe 9.

As shown in fig. 2 and 3, the experimental preparation method for simulating lunar soil with low water content and H isotope composition comprises the following specific steps:

the first step is as follows: placing the simulated lunar soil in a transition bin 6, and heating by aheating plate 10;

the second step is that: weighing the simulated lunar soil, and transferring the simulated lunar soil into a lunar soil cup 2;

the third step: filling the liquid nitrogen refrigerating tank 4 with liquid nitrogen, reading the temperature data of the lunar soilcup temperature probe 11, and starting the water vapor generating device 3 after the temperature data reaches a set temperature;

the fourth step: recording the temperature and humidity in the glove box main box body 1 in real time, and closing the water vapor generating device 3 after the set time is reached;

the fifth step: the hydrous ice is weighed using ananalytical balance 5 to simulate lunar soil;

and a sixth step: and finishing the preparation experiment of the lunar soil with low water content and H isotope composition simulation.

Claims (4)

1. A simulated lunar soil preparation experimental device with low water content and H isotope composition is characterized in that: comprises a glove box, a lunar soil cup (2), a liquid nitrogen refrigerating tank (4), a water vapor generating device (3), a gas transmission pipe (9) and corresponding control equipment; the glove box comprises a main box body (1) and a transition bin (6), inert gas is filled in the main box body (1), the main box body (1) is of a sealed box body structure, a lunar soil cup (2) is arranged at the bottom of the main box body (1), the front side of the main box body is provided with a manual operation hole of an operation glove in sealing connection, and a heating plate (10) is arranged in the transition bin (6); the lunar soil cup (2) vertically penetrates through the bottom of the glove box, so that the upper part of the lunar soil cup (2) is positioned in the main box body (1), and the lower part of the lunar soil cup (2) is positioned outside the main box body (1) of the glove box; the liquid nitrogen refrigerating tank (4) wraps the lower part of the lunar soil cup; the water vapor generating device (3) is positioned outside the glove box main box body (1), the water vapor generating device is provided with a water sealing bottle (7) and a heavy water sealing bottle (8), and the water vapor generating device (3) enables water and heavy water to be mixed to form fixed H isotopes to form water vapor; the gas transmission pipe (9) penetrates through the glove box main box body (1) from the side face, and the gas transmission pipe terminal is placed in the lunar soil cup (2).

2. The experimental device for preparing the lunar soil with low water content and H isotope composition simulation according to claim 1, wherein the inner wall of the lunar soil cup (1) is provided with a temperature probe (11); an air outlet is arranged on the liquid nitrogen refrigerating tank (4).

3. The experimental device for preparing simulated lunar soil with low water content and H isotope composition as claimed in claim 1, is characterized in that a thermometer, a hygrometer (12) and an analytical balance (5) are arranged in the glove box main body (1).

4. An experimental method for preparing experimental equipment for simulating lunar soil by using low water content and H isotope composition according to any one of claims 1 to 3, which is characterized by comprising the following steps:

the first step is as follows: placing the simulated lunar soil in a transition bin (6), and heating by a heating plate (10);

the second step is that: weighing the simulated lunar soil, and transferring the simulated lunar soil into a lunar soil cup (2);

the third step: filling the liquid nitrogen refrigerating tank (4) with liquid nitrogen, reading temperature data of the lunar soil cup temperature probe (11), and starting the water vapor generating device (3) after the temperature data reaches a set temperature;

the fourth step: recording the temperature and humidity in the glove box main box body (1) in real time, and closing the water vapor generating device (3) after the set time is reached;

the fifth step: simulating lunar soil by weighing the water-containing ice by using an analytical balance (5);

and a sixth step: and finishing the preparation experiment of the lunar soil with low water content and H isotope composition simulation.

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