CN-122016892-A - Multi-sample temperature and humidity control experimental device of small-angle neutron scattering spectrometer

CN122016892ACN 122016892 ACN122016892 ACN 122016892ACN-122016892-A

Abstract

The application discloses a multi-sample temperature and humidity control experimental device of a small-angle neutron scattering spectrometer, which comprises a shell component, a sample frame, a heat preservation medium conveying mechanism and a reaction medium conveying mechanism, wherein the shell component comprises a shell, an incident window and an emergent window, the shell, the incident window and the emergent window jointly define a sample cavity, a heat preservation space is arranged between the inner wall and the outer wall of the shell, the heat preservation space surrounds at least part of the sample cavity, the sample frame is used for carrying a plurality of samples, the opposite sides of each sample face the incident window and the emergent window respectively, the heat preservation medium conveying mechanism is used for circularly conveying heat preservation medium to the heat preservation space, and the reaction medium conveying mechanism is used for circularly conveying reaction medium with preset temperature and humidity to the sample cavity. The device is used for preserving heat of the sample cavity in a mode of circularly conveying heat preservation media in the heat preservation space, so that samples in the sample cavity are in a constant temperature and humidity environment, and accuracy of experimental results is improved.

Inventors

HU HAITAO
CHENG HUI
BAI BO
YUAN BAO
LUO WANJU
ZENG DAXING
ZHANG MIN
CHENG FALIANG
XIE SHILEI
Shang Shuangyan
Dou Mengjia
WANG JIAXIANG
ZUO TAISEN
CHENG HE
HUANG ZHIQIANG
TONG XIN
SUN YUAN
YE FAN

Assignees

散裂中子源科学中心
中国科学院高能物理研究所

Dates

Publication Date: 20260512
Application Date: 20260407

Claims (10)

1. Multi-sample temperature and humidity control experimental device of small-angle neutron scattering spectrometer, which is characterized by comprising: The shell assembly comprises a shell, an incident window and an emergent window, wherein the shell is provided with an incident port and an emergent port, the incident window is arranged at the incident port, the emergent window is arranged at the emergent port, the shell, the incident window and the emergent window jointly define a sample cavity, a heat-preserving space is arranged between the inner wall and the outer wall of the shell, and the heat-preserving space surrounds at least part of the sample cavity; the sample rack is used for bearing a plurality of samples, and the opposite two sides of each sample face the incident window and the emergent window respectively; the heat preservation medium conveying mechanism is communicated with the heat preservation space and is used for circularly conveying heat preservation medium to the heat preservation space; And the reaction medium conveying mechanism is communicated with the sample cavity and is used for circularly conveying the reaction medium with preset temperature and humidity to the sample cavity.
2. The multi-sample temperature and humidity control experimental device of the small-angle neutron scattering spectrometer of claim 1, further comprising a temperature and humidity sensor for detecting the temperature and humidity in the sample cavity.
3. The multi-sample temperature and humidity control experimental device of the small-angle neutron scattering spectrometer according to claim 1, wherein the heat preservation medium conveying mechanism comprises a heat preservation medium input connector and a heat preservation medium output connector, the shell is provided with a heat preservation medium inlet and a heat preservation medium outlet, the heat preservation medium inlet and the heat preservation medium outlet are communicated with the heat preservation space, the heat preservation medium input connector is arranged at the heat preservation medium inlet, the heat preservation medium output connector is arranged at the heat preservation medium outlet, the heat preservation medium input connector is used for inputting heat preservation medium into the heat preservation space, and the heat preservation medium output connector is used for outputting heat preservation medium in the heat preservation space.
4. The multi-sample temperature and humidity control experimental device of the small-angle neutron scattering spectrometer according to claim 1, wherein the reaction medium conveying mechanism comprises a reaction medium input connector and a reaction medium output connector, the shell is provided with a reaction medium inlet and a reaction medium outlet, the reaction medium inlet and the reaction medium outlet are both communicated with the sample cavity, the reaction medium input connector is arranged at the reaction medium inlet, the reaction medium output connector is arranged at the reaction medium outlet, the reaction medium input connector is used for inputting reaction medium with preset temperature into the sample cavity, and the reaction medium output connector is used for outputting the reaction medium in the sample cavity.
5. The multi-sample temperature and humidity control experimental device of the small-angle neutron scattering spectrometer according to claim 1, wherein the shell assembly further comprises a cover body, the shell body is provided with a taking and placing opening, the taking and placing opening is communicated with the sample cavity and is used for taking and placing the sample rack, and the cover body is detachably arranged at the taking and placing opening.
6. The multi-sample temperature and humidity control experimental device of the small-angle neutron scattering spectrometer of claim 5, wherein the housing assembly further comprises a heat preservation layer, and the heat preservation layer is coated on the outer surface of the housing.
7. The multi-sample temperature and humidity control experimental device for small-angle neutron scattering spectrometers of claim 6, wherein the housing comprises an inner housing, an outer housing, a first sealing plate and a second sealing plate, the inner housing is mounted inside the outer housing and is connected with the outer housing, a gap is formed between the inner housing and the outer housing, the first sealing plate covers one sides of the inner housing and the outer housing and covers one side of the gap, the second sealing plate covers the other sides of the inner housing and the outer housing and covers the other side of the gap, the first sealing plate, the second sealing plate and the gap enclose to form the heat insulation space, the entrance opening and the exit opening are respectively arranged on two opposite sides of the inner housing, the entrance opening, the exit opening and the inner housing jointly define the sample cavity, the taking opening penetrates through the inner housing and the outer housing, and the heat insulation layer covers the outer surface of the outer housing.
8. The multi-sample temperature and humidity control experimental device of the small-angle neutron scattering spectrometer of claim 1, wherein the sample holder comprises a holder body and a plurality of sample boxes, the holder body is detachably mounted in the sample cavity, the plurality of sample boxes are detachably mounted on the holder body, and the sample boxes are used for bearing samples.
9. The multi-sample temperature and humidity control experimental device for the small-angle neutron scattering spectrometer according to claim 8, wherein the frame body is provided with a plurality of slots, and a plurality of sample boxes are respectively inserted and installed in the slots.
10. The multi-sample temperature and humidity control experimental device for the small-angle neutron scattering spectrometer according to claim 1, further comprising a collimation piece, wherein the collimation piece is detachably arranged on the outer side of the incident window, the collimation piece is provided with a plurality of collimation positions, the plurality of collimation positions respectively correspond to a plurality of samples on the sample rack, and the collimation positions are used for collimating the plurality of samples on the sample rack.

Description

Multi-sample temperature and humidity control experimental device of small-angle neutron scattering spectrometer Technical Field The application relates to the technical field of small-angle neutron scattering experimental devices, in particular to a multi-sample temperature and humidity control experimental device for small-angle neutron scattering. Background The small angle scattering is an important means for detecting the nano-scale structure of the material, has the advantages of good statistical representativeness, simple and convenient sample preparation and the like, has an irreplaceable effect in the aspect of microstructure characterization of the material, irradiates an incident beam to the sample when a neutron or X-ray is used for carrying out a small angle scattering experiment, records and analyzes a generated scattering signal by means of a detector, and can infer microstructure characteristics of the sample. In the small angle scattering experiment, the temperature and humidity environment where the sample is located plays an important role, and the change of the temperature and humidity of the environment can change the nano structure inside the sample, so that the change is observed and quantified in real time by utilizing the small angle scattering technology, and the dynamics and thermodynamic process of the sample under the influence of the external environment are detected. The traditional temperature and humidity control experimental device with small angle scattering has poor heat preservation effect, influences the uniformity of environmental temperature and humidity, and further influences the accuracy of experimental results. Disclosure of Invention The application aims to provide a multi-sample temperature and humidity control experimental device of a small-angle neutron scattering spectrometer, which is used for preserving heat of a sample cavity in a mode of circularly conveying a heat preservation medium into a heat preservation space, so that samples in the sample cavity are in a constant temperature and humidity environment, and the accuracy of experimental results is improved. The application provides a multi-sample temperature and humidity control experimental device of a small-angle neutron scattering spectrometer, which comprises: The shell assembly comprises a shell, an incident window and an emergent window, wherein the shell is provided with an incident port and an emergent port, the incident window is arranged at the incident port, the emergent window is arranged at the emergent port, the shell, the incident window and the emergent window jointly define a sample cavity, a heat-preserving space is arranged between the inner wall and the outer wall of the shell, and the heat-preserving space surrounds at least part of the sample cavity; the sample rack is used for bearing a plurality of samples, and the opposite two sides of each sample face the incident window and the emergent window respectively; the heat preservation medium conveying mechanism is communicated with the heat preservation space and is used for circularly conveying heat preservation medium to the heat preservation space; And the reaction medium conveying mechanism is communicated with the sample cavity and is used for circularly conveying the reaction medium with preset temperature and humidity to the sample cavity. In an embodiment, the temperature and humidity sensor is further included, and the temperature and humidity sensor is used for detecting the temperature and humidity in the sample cavity. In an embodiment, the thermal insulation medium conveying mechanism comprises a thermal insulation medium input connector and a thermal insulation medium output connector, the shell is provided with a thermal insulation medium inlet and a thermal insulation medium outlet, the thermal insulation medium inlet and the thermal insulation medium outlet are both communicated with the thermal insulation space, the thermal insulation medium input connector is installed at the thermal insulation medium inlet, the thermal insulation medium output connector is installed at the thermal insulation medium outlet, the thermal insulation medium input connector is used for inputting thermal insulation medium into the thermal insulation space, and the thermal insulation medium output connector is used for outputting the thermal insulation medium in the thermal insulation space. In an embodiment, the reaction medium conveying mechanism comprises a reaction medium input connector and a reaction medium output connector, the shell is provided with a reaction medium inlet and a reaction medium outlet, the reaction medium inlet and the reaction medium outlet are both communicated with the sample cavity, the reaction medium input connector is installed at the reaction medium inlet, the reaction medium output connector is installed at the reaction medium outlet, the reaction medium input connector is used for inputting reaction me