CN-122018594-A - Program control Wen Yeliu feed-out and recovery device and method for vacuum environment

CN122018594ACN 122018594 ACN122018594 ACN 122018594ACN-122018594-A

Abstract

The invention discloses a program control Wen Yeliu feed-out and recovery device and a method for a vacuum environment, wherein the program control Wen Yeliu feed-out and recovery device for the vacuum environment comprises a vacuum cavity, a capturing head heating device, an inner guide pipe, an outer guide pipe and a controller, wherein the capturing head is arranged in the vacuum cavity, the capturing head heating device is arranged in the vacuum cavity, the inner guide pipe is arranged in the vacuum cavity and connected with the capturing head, the outer guide pipe is arranged outside the vacuum cavity and connected with the inner guide pipe, the outer guide pipe heating device is arranged outside the vacuum cavity, and the controller is respectively and electrically connected with the capturing head heating device, the inner guide pipe heating device and the outer guide pipe heating device to respectively and independently control the heating temperatures of the capturing head heating device, the inner guide pipe heating device and the outer guide pipe heating device. The program control Wen Yeliu feed-out and recovery device for the vacuum environment has the advantages of being difficult to freeze and block, high in applicability and the like.

Inventors

YANG JIE
HUANG BO
YUAN LONGTENG
ZHONG HUAQIANG
Chen Nalun

Assignees

清华大学
粤港澳大湾区(广东)国创中心

Dates

Publication Date: 20260512
Application Date: 20260120

Claims (10)

1. A programmed Wen Yeliu feed-out and recovery apparatus for a vacuum environment, comprising: a vacuum cavity adapted to form a vacuum environment therein, the vacuum cavity being adapted to house a liquid jet device therein, the liquid jet device being adapted to generate a liquid jet; A capture head disposed within the vacuum cavity and adapted to capture the liquid jet; the capture head heating device is arranged on the capture head; The inner guide pipe is arranged in the vacuum cavity and connected with the capturing head; the inner conduit heating device is arranged on the inner conduit; The outer guide pipe is arranged outside the vacuum cavity and connected with the inner guide pipe; the outer catheter heating device is arranged on the outer catheter; And the controller is respectively and electrically connected with the capture head heating device, the inner conduit heating device and the outer conduit heating device to respectively and independently control the heating temperatures of the capture head heating device, the inner conduit heating device and the outer conduit heating device.
2. The programmed Wen Yeliu feed-out and recovery device for a vacuum environment according to claim 1, further comprising: the capture head temperature measuring device is arranged on the capture head and is electrically connected with the controller, and the controller is suitable for controlling the heating temperature of the capture head heating device according to the detection value of the capture head temperature measuring device; the inner conduit temperature measuring device is arranged on the inner conduit and is electrically connected with the controller, and the controller is suitable for controlling the heating temperature of the inner conduit heating device according to the detection value of the inner conduit temperature measuring device; The outer catheter temperature measuring device is arranged on the outer catheter and is electrically connected with the controller, and the controller is suitable for controlling the heating temperature of the outer catheter heating device according to the detection value of the outer catheter temperature measuring device.
3. The programmed Wen Yeliu feed-out and recovery device for a vacuum environment according to claim 1, further comprising: the waste liquid collecting container is connected with one end of the outer conduit far away from the inner conduit; and the vacuumizing device is connected with the waste liquid collecting container and is suitable for forming a low vacuum environment in the waste liquid collecting container.
4. A programmed Wen Yeliu feed-out and recovery device for a vacuum environment according to claim 3 further comprising a cold trap in which the waste collection vessel is located.
5. A programmed Wen Yeliu feed-out and recovery device for a vacuum environment according to claim 3 further comprising a pressure sensor connected between the waste collection vessel and the evacuation device.
6. The program control Wen Yeliu feed-out and recovery device for a vacuum environment according to claim 1, wherein a lower end of said capture head is provided with a conduit aperture, an upper end of said inner conduit fits within said conduit aperture, an upper end of said capture head is provided with a capture aperture, said capture aperture is adapted to capture said liquid jet, and an upper end surface of said capture head is configured as a tapered surface with a gradually increasing diameter from top to bottom.
7. The program control Wen Yeliu feed-out and recovery device for a vacuum environment according to claim 1, wherein a connection part is formed on the peripheral surface of the capturing head, a mounting hole is formed in the connection part, and the capturing head heating device is an electric heating rod and is fitted in the mounting hole.
8. The process control Wen Yeliu feed-out and recovery device for a vacuum environment of claim 1, wherein said capture head is a piece of thermally conductive material.
9. The process control Wen Yeliu feed-out and recovery device for a vacuum environment of claim 1, wherein said inner conduit heating means is a flexible electrical heating tape and is wrapped around said inner conduit and said outer conduit heating means is a flexible electrical heating tape and is wrapped around said outer conduit.
10. A programmed Wen Yeliu feed-out and recovery method for a vacuum environment, characterized in that a programmed Wen Yeliu feed-out and recovery device for a vacuum environment according to any one of claims 1-9 is used, comprising the steps of: Before the liquid jet device generates a liquid jet, the controller controls the capture head heating device, the inner conduit heating device and the outer conduit heating device to heat the capture head, the inner conduit and the outer conduit to a predetermined preheat temperature, the predetermined preheat temperature being greater than a melting point of a solvent of the liquid jet; During the experiment, the controller controls the capture head heating device, the inner conduit heating device and the outer conduit heating device to maintain the capture head, the inner conduit and the outer conduit at a predetermined experiment temperature, the predetermined experiment temperature being greater than the melting point of the solvent of the liquid jet; after the experiment is finished, the controller controls the capture head heating device, the inner conduit heating device and the outer conduit heating device to heat the capture head, the inner conduit and the outer conduit to a preset gasification temperature, wherein the preset gasification temperature is larger than the boiling point of the solvent of the liquid jet.

Description

Program control Wen Yeliu feed-out and recovery device and method for vacuum environment Technical Field The invention relates to the technical field of precision instruments, in particular to a program control Wen Yeliu feed-out and recovery device and method for a vacuum environment. Background In order to analyze chemical reaction kinetics, biological macromolecule conformation and solvation effect in the liquid on an atomic scale, the liquid phase sample is detected by adopting technologies such as electron diffraction, X-ray diffraction or photoelectron spectroscopy. Such experiments must produce and maintain a stable liquid sample in an ultra-high vacuum environment required to maintain electron beam or photon beam transport. For this purpose, microfluidic chips are required to generate micrometer-scale liquid jets for injection into the vacuum chamber. In order to maintain vacuum and protect the expensive electro-optical components, the jet must be captured and removed from the vacuum chamber quickly after it passes the probe point. In the liquid flow feeding device in the related art, on the one hand, the liquid can flash violently when flowing at a high speed under a high vacuum. The latent heat of vaporization takes away a large amount of heat, so that the liquid flow temperature suddenly drops in millisecond-level time, the liquid flow is extremely easy to freeze instantly in a capturing port or a transmission pipeline, physical blockage is caused, on the other hand, the adaptability to a high-melting-point solvent is lacking, the solidifying point is close to the room-temperature organic solvent, and after the organic solvent flows out of a vacuum cavity, the organic solvent is extremely easy to solidify again in the transmission pipeline in the room-temperature environment, so that the rear end is blocked. Disclosure of Invention The present invention aims to solve at least one of the technical problems existing in the prior art. Therefore, the invention provides a program control Wen Yeliu feed-out and recovery device for a vacuum environment, and the program control Wen Yeliu feed-out and recovery device for the vacuum environment has the advantages of difficult freezing and blocking, strong applicability and the like. The invention also provides a program control Wen Yeliu feed-out and recovery method for the vacuum environment. To achieve the above object, an embodiment according to a first aspect of the present invention proposes a program control Wen Yeliu feed-out and recovery device for a vacuum environment, the program control Wen Yeliu feed-out and recovery device for a vacuum environment comprising a vacuum chamber adapted to form a vacuum environment therein, the vacuum chamber being adapted to house a liquid jet device adapted to generate a liquid jet, a capturing head provided in the vacuum chamber and adapted to capture the liquid jet, a capturing head heating device provided on the capturing head, an inner conduit provided in the vacuum chamber and connected to the capturing head, an inner conduit heating device provided on the inner conduit, an outer conduit provided outside the vacuum chamber and connected to the inner conduit, an outer conduit heating device provided on the outer conduit, a controller provided respectively with the capturing head heating device, the inner conduit heating device and the outer conduit heating device to control the temperature of the capturing head heating device, the outer conduit heating device and the capturing head heating device, respectively. The program control Wen Yeliu feed-out and recovery device for the vacuum environment has the advantages of being not easy to freeze and block, high in applicability and the like. In addition, the program control Wen Yeliu feed-out and recovery device for vacuum environment according to the above-described embodiment of the present invention may further have the following additional technical features: According to one embodiment of the invention, the program control Wen Yeliu feed-out and recovery device for the vacuum environment further comprises a capturing head temperature measuring device which is arranged on the capturing head and is electrically connected with the controller, the controller is suitable for controlling the heating temperature of the capturing head heating device according to the detection value of the capturing head temperature measuring device, an inner conduit temperature measuring device is arranged on the inner conduit and is electrically connected with the controller, the controller is suitable for controlling the heating temperature of the inner conduit heating device according to the detection value of the inner conduit temperature measuring device, and an outer conduit temperature measuring device is arranged on the outer conduit and is electrically connected with the controller, and the controller is suitable for controlling the heating temperature of the outer conduit