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CN-121978014-A - Multilayer air chamber optical absorption tank capable of keeping stable gas parameters for long time and operation method

CN121978014ACN 121978014 ACN121978014 ACN 121978014ACN-121978014-A

Abstract

The invention discloses a multilayer air chamber optical absorption tank capable of keeping stable air parameters for a long time and an operation method. The air chamber group comprises an inner air chamber and at least one outer air chamber which surrounds the inner air chamber layer by layer along the outer side of the inner air chamber, the valve component is provided with an inner air chamber valve communicated with the inner air chamber and an outer air chamber valve communicated with the outer air chamber, the monitoring component can monitor target gas parameters, and the absorption tank is also provided with a reflecting mirror group and a light-transmitting window. The method is applied to the absorption tank, and after vacuumizing and inflating until the gas parameters of all the air chambers are consistent, the monitoring component monitors the gas parameters in real time and performs differential vacuumizing and inflating regulation and control, and the pumped gas can be recycled after being treated. The invention can maintain the stable gas parameters of the inner-layer gas chamber for a long time, promote the continuous working time of the absorption tank, reduce the target gas consumption, has economical efficiency and environmental protection, and has simple structure and method and higher application value.

Inventors

  • WANG LIKUN

Assignees

  • 王立坤

Dates

Publication Date
20260505
Application Date
20260309

Claims (10)

  1. 1. A multilayer gas cell optical absorber cell for maintaining stable gas parameters for a long period of time, the absorber cell comprising: A set of air cells comprising: an inner air chamber having a reflector group disposed therein, and The outer air chamber is arranged along the outer side of the inner air chamber in a surrounding mode layer by layer; a valve assembly, comprising: At least two inner-layer air chamber valves arranged outside the air chamber wall of the inner-layer air chamber and communicated with the inner-layer air chamber, and At least one outer layer air chamber valve arranged outside the air chamber wall of the outer layer air chamber and communicated with the outer layer air chamber; And And the monitoring assembly comprises a gas chamber monitoring device corresponding to each layer of gas chamber in the gas chamber group.
  2. 2. The absorbent cell of claim 1, wherein the set of air cells includes an inner air cell and an outer air cell, the outer air cell integrally surrounding the inner air cell, and the outer air cell having a volume less than the volume of the inner air cell.
  3. 3. The absorber of claim 2 wherein said valve assembly comprises: a first inner plenum valve communicating the inner and outer plenums and configured to control gas flow between the inner and outer plenums; a second inner-layer gas chamber valve communicating the inner-layer gas chamber with the outside of the absorption cell and configured to control gas communication between the inner-layer gas chamber and the outside of the absorption cell, and And an outer layer air chamber valve which is communicated with the outer layer air chamber and the outside of the absorption tank and is configured to control the air circulation between the outer layer air chamber and the outside of the absorption tank.
  4. 4. The absorption cell according to claim 1 wherein the monitoring assembly comprises: an inner plenum monitoring device coupled to the inner plenum, the inner plenum monitoring device configured to monitor a gas parameter of a gas in the inner plenum, and And the outer layer gas chamber monitoring device is connected with the outer layer gas chamber and is configured to monitor gas parameters of gas in the outer layer gas chamber.
  5. 5. The absorption cell according to claim 1, wherein the absorption cell further comprises: A light passing window disposed on the gas chamber walls of the inner and outer gas chambers and configured to provide a light path for the incidence and/or emergence of a light beam.
  6. 6. A method of operating a multilayer gas cell optical absorber cell that maintains stable gas parameters for a long period of time, the method comprising: Filling target gas into the absorption tank through a valve of any outer layer gas chamber, and closing the valve of the inner layer gas chamber and the valve of each outer layer gas chamber after the gas parameters of the target gas in each gas chamber reach preset working conditions; Monitoring gas parameters of the target gas in the inner layer gas chamber and each outer layer gas chamber in real time through a monitoring component, and And according to the gas parameters obtained through real-time monitoring, differentially pumping and/or inflating the inner-layer gas chamber and/or the outer-layer gas chamber of any level of the absorption tank, and maintaining the gas parameters of the target gas in the inner-layer gas chamber under preset working conditions.
  7. 7. The method of claim 6, wherein the gas parameters include pressure, purity, and/or composition ratio of the gas.
  8. 8. The method according to claim 6, wherein differentially pumping and/or inflating the inner air chamber and/or the outer air chamber of any level of the absorption cell according to the real-time monitoring result comprises: if the gas parameters of the target gas in the inner layer gas chamber and each outer layer gas chamber are in preset working conditions, continuously monitoring the gas parameters of the target gas, and keeping the absorption tank in a working state; If the gas parameters of the target gas in the inner-layer gas chambers meet preset working conditions and the gas parameters of the target gas in one or more outer-layer gas chambers deviate from the preset working conditions, carrying out air extraction and/or inflation operation on the one or more outer-layer gas chambers until the gas parameters of the gas in the one or more outer-layer gas chambers meet the preset working conditions; If the gas parameters of the target gas in the inner layer gas chambers deviate from the preset working conditions, stopping the operation of the absorption tank, performing problem investigation, and recovering the monitoring of the gas parameters of the target gas in the inner layer gas chambers and the outer layer gas chambers and the operation of the absorption tank after the problem investigation, and And stopping the operation of the absorption tank if the gas parameters of the target gas in the inner-layer gas chamber and at least one outer-layer gas chamber deviate from the preset working conditions, and re-filling the target gas after the inner-layer gas chamber and each outer-layer gas chamber of the absorption tank are subjected to air suction operation until the gas parameters of the target gas in the inner-layer gas chamber and each outer-layer gas chamber meet the preset working conditions, and then, recovering the monitoring of the gas parameters of the target gas in the inner-layer gas chamber and each outer-layer gas chamber and the operation of the absorption tank.
  9. 9. The method of claim 6, further comprising opening at least one inner chamber valve and each outer chamber valve to evacuate the inner chamber and each outer chamber to a vacuum prior to filling the target gas.
  10. 10. The method of claim 6, further comprising re-filling the corresponding gas cells in the set of gas cells of the absorption cell after subjecting the extracted gas to a gas treatment comprising separation, purification and/or purification.

Description

Multilayer air chamber optical absorption tank capable of keeping stable gas parameters for long time and operation method Technical Field The invention relates to the technical field of gas absorption tanks, in particular to a multilayer air chamber optical absorption tank capable of keeping stable gas parameters for a long time and an operation method. Background The core use requirement of the optical gas absorption tank is that target gas with specific pressure, purity and component proportion is filled in the optical gas absorption tank, the stability of the gas parameters is required to be maintained in the use process, and the related applications such as gas absorption spectrum research, gas spectrum analysis, gas concentration detection and the like are realized through the interaction of laser beams and the target gas in the gas chamber, and the optical gas absorption tank also needs to be used as a chemical reaction container in part of scenes to provide stable gas environment atmosphere for various chemical reactions. In the prior art, an optical gas absorption tank and similar gas containers are mostly designed by adopting a single-layer gas chamber structure, and are influenced by the self structural design, a sealing mode, the number of interfaces and other factors, so that gas leakage with a certain rate can exist in the use process. After the target gas meeting the use requirement is filled into the container, parameters such as gas pressure, purity, component proportion and the like in the container can continuously change along with gas leakage, and the parameters are difficult to maintain in a range required by application for a long time. When the gas parameters in the container exceed the set range, the operations of exhausting and re-inflating the whole container are required to be carried out, the mixed gas in the container is exhausted and the target gas is re-inflated to the required working condition, the operation needs to consume a certain time, and the gas parameters in the container can not meet the use requirements in the process, so that the manufacturing, production or testing process is interrupted. Meanwhile, the existing gas container lacks a special buffer isolation structure design, cannot regulate and control gas parameters in a grading manner, has no effective recycling mode for high-value poisonous or rare gas, not only improves the gas use cost, but also is easy to cause environmental pollution, and is difficult to meet the use requirements in practical application scenes. Therefore, there is a need for an optical gas absorption tank device and an operation method, which solve the problems that the traditional optical gas absorption tank and similar gas containers cannot keep the internal gas pressure, purity and component proportion stable for a long time, the working process is interrupted due to the fact that the whole gas is required to be pumped and inflated after the gas parameter exceeds the standard, the gas control precision is low, the target gas consumption is large and the gas cannot be recycled, so that the continuous working time of the gas container is prolonged, the gas use cost is reduced, and the method is suitable for the diversified requirements of various fields on stable gas environment. Disclosure of Invention Starting from the prior art, the task of the invention is to provide a multilayer air chamber optical absorption tank capable of keeping stable air parameters for a long time and an operation method, which can solve the problem that the traditional optical air absorption tank can not keep stable air parameters for a long time from the aspects of structure and method, thereby effectively improving the stability and control precision of air pressure, purity and component proportion in the absorption tank, prolonging the continuous working time of the device, reducing the consumption of target air, realizing the recycling of air, having economy, environmental protection and use safety, and simultaneously simplifying the structure and operation method of the device. In a first aspect of the present invention, there is provided a multilayer gas cell optical absorption cell for maintaining stable gas parameters over time, the absorption cell comprising: A set of air cells comprising: an inner air chamber having a reflector group disposed therein, and The outer air chamber is arranged along the outer side of the inner air chamber in a surrounding mode layer by layer; a valve assembly, comprising: At least two inner-layer air chamber valves arranged outside the air chamber wall of the inner-layer air chamber and communicated with the inner-layer air chamber, and At least one outer layer air chamber valve arranged outside the air chamber wall of the outer layer air chamber and communicated with the outer layer air chamber; And And the monitoring assembly comprises a gas chamber monitoring device corresponding to each layer of gas chamber in the