CN220438254U - On-line monitoring liquid argon device - Google Patents
On-line monitoring liquid argon device Download PDFInfo
- Publication number
- CN220438254U CN220438254U CN202322354936.1U CN202322354936U CN220438254U CN 220438254 U CN220438254 U CN 220438254U CN 202322354936 U CN202322354936 U CN 202322354936U CN 220438254 U CN220438254 U CN 220438254U
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- Prior art keywords
- pipe
- liquid argon
- liquid
- storage tank
- monitoring
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- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 title claims abstract description 142
- 239000007788 liquid Substances 0.000 title claims abstract description 89
- 229910052786 argon Inorganic materials 0.000 title claims abstract description 71
- 238000012544 monitoring process Methods 0.000 title claims abstract description 19
- 238000003860 storage Methods 0.000 claims abstract description 38
- 238000004458 analytical method Methods 0.000 claims abstract description 27
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 23
- 229910052802 copper Inorganic materials 0.000 claims abstract description 23
- 239000010949 copper Substances 0.000 claims abstract description 23
- 239000007791 liquid phase Substances 0.000 claims abstract description 10
- 239000007789 gas Substances 0.000 claims abstract description 3
- 239000012071 phase Substances 0.000 claims abstract description 3
- 238000012806 monitoring device Methods 0.000 abstract description 3
- 238000004904 shortening Methods 0.000 abstract description 2
- 238000000926 separation method Methods 0.000 abstract 1
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 238000003556 assay Methods 0.000 description 1
- 238000009795 derivation Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 239000007792 gaseous phase Substances 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000010223 real-time analysis Methods 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Landscapes
- Sampling And Sample Adjustment (AREA)
Abstract
The utility model discloses an on-line monitoring liquid argon device, which belongs to the field of air separation system monitoring, and comprises a plurality of liquid argon storage tanks in a factory, wherein each liquid argon storage tank is provided with a differential pressure type liquid level meter, each liquid argon storage tank comprises an L pipe connected to the high part of the pipe wall of the liquid argon storage tank and an H pipe connected to the low part of the pipe wall of the liquid argon storage tank, the H pipe is a positive pressure taking pipeline for monitoring liquid phase, the L pipe is a negative pressure taking pipeline for monitoring gas phase, a pressure transmitter is arranged at the junction of the L pipe and the H pipe, a three-way valve is arranged on the H pipe pipeline, copper pipes are laid at joints of the three-way valves and are communicated to a chromatographic analyzer of an analysis chamber, and a change-over switch valve is arranged on a lead-out copper pipe of each liquid argon storage tank H pipe and is arranged in the analysis chamber. The liquid level monitoring device can monitor the liquid level and the liquid argon component in detail, thereby greatly reducing the labor intensity, improving the working efficiency, shortening the analysis time, improving the analysis accuracy and providing powerful guarantee for liquid sale.
Description
Technical Field
The utility model relates to the field of space division system monitoring, in particular to an on-line liquid argon monitoring device.
Background
An important storage unit in the space division system is a liquid argon storage tank, and is mainly responsible for storing liquid argon products after argon rectification in the space division device. Along with the production of 2#15000 space division, a new situation that liquid can be sold is created, liquid argon in a liquid argon storage tank can be sold as a product, which means that the quality requirement on the liquid argon product is higher and higher, and the real-time analysis and judgment of the components of the liquid argon product becomes a serious difficulty in the current work. A plurality of liquid argon storage tanks are arranged in a common factory, if a chromatograph is arranged for each liquid argon storage tank, the cost is monitored in real time, the existing operation is mostly that laboratory staff walks between each liquid argon storage tank to analyze one by one through a portable analyzer, data are recorded manually, the portable analyzer can only analyze the oxygen component content in liquid argon and can not analyze the nitrogen component content and the hydrocarbon component content, pressurizing operation is needed when each storage tank is analyzed, the analysis time is greatly prolonged, meanwhile, different staff operate the instrument with a certain system error, great inconvenience is brought to the accuracy of the liquid argon component, the liquid selling efficiency is influenced, meanwhile, the detection of the liquid argon component is needed to monitor the liquid phase, the liquid phase data accuracy is directly influenced by the liquid level, and if the data are inaccurate, the liquid cannot be sold.
Disclosure of Invention
The technical problem to be solved by the utility model is to provide an on-line liquid argon monitoring device, which can monitor the liquid level and monitor various components of a liquid argon storage tank by using one chromatograph, thereby effectively evaluating and controlling the quality of liquid argon sold commodity.
In order to solve the technical problems, the utility model adopts the following technical scheme: the utility model provides an on-line monitoring liquid argon device, including a plurality of liquid argon storage tanks, all be provided with differential pressure formula level gauge on every liquid argon storage tank, differential pressure formula level gauge is including connecting the L pipe of liquid argon storage tank pipe wall eminence and the H pipe of eminence, wherein the H pipe is the malleation pressure-taking pipeline for monitor the liquid phase, the L pipe is the negative pressure-taking pipeline, be used for monitoring the gaseous phase, L pipe and H pipe junction are provided with pressure transmitter, be provided with the three-way valve on the H pipe pipeline, three-way valve connects department to lay the copper pipe, the copper pipe communicates to the chromatograph of analysis room on, all be provided with the change over switch valve on every liquid argon storage tank H pipe derivation copper pipe, the change over switch valve is installed in the analysis room.
The technical scheme of the utility model is further improved as follows: each liquid argon reservoir H tube leads out of the copper tube through the tube lane from the air to the analysis chamber.
The technical scheme of the utility model is further improved as follows: the chromatographic analyzer is a liquid phase argon chromatographic online analyzer.
The technical scheme of the utility model is further improved as follows: a plc control console is arranged in the analysis chamber, and the switch of the switching valve on each copper pipe is controlled by plc.
By adopting the technical scheme, the utility model has the following technical progress: through setting up the three-way valve on the malleation pressure-taking pipeline on each liquid argon device, lay the copper pipe on the three-way valve and introduce the chromatograph, neither influence the continuation of survey liquid level function and use, also can carry out on-line analysis control to the liquid argon of a plurality of liquid argon storage tanks to set up on the malleation pipe, both guaranteed the moment control liquid phase, can need not extra pressurization again, rely on malleation pipe internal pressure alright promote monitoring liquid and get into the chromatograph through the copper pipe. Through setting up aerial piping lane, make the laying of copper pipe not receive the space restriction, transfer line is more smooth and easy. The device can reduce the labor cost, greatly reduce the labor intensity, improve the working efficiency, more importantly shorten the analysis time, improve the analysis accuracy and provide powerful guarantee for liquid sale.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art;
FIG. 1 is a schematic diagram of the structure of the present utility model;
Detailed Description
The utility model is further illustrated by the following examples:
example 1
As shown in FIG. 1, the structure diagram of an on-line monitoring liquid argon device is shown, the main body is 5 liquid argon storage tanks distributed at different positions in a factory, each liquid argon storage tank is provided with a differential pressure type liquid level meter, wherein the differential pressure type liquid level meter comprises an L pipe connected to the high part of the pipe wall of the liquid argon storage tank and an H pipe connected to the low part of the pipe wall of the liquid argon storage tank, the H pipe is a positive pressure taking pipeline and is arranged at the low part of the pipe wall of the storage tank and used for collecting and monitoring liquid phase, the L pipe is a negative pressure taking pipeline and is arranged at the high part and used for monitoring gas phase, a pressure transformer is arranged at the junction of the L pipe and the H pipe, the corresponding liquid level can be calculated according to the pressure difference of the two pipes, and the liquid level information is transmitted out for people to check. The method is characterized in that a three-way valve is arranged on an H pipe pipeline of each liquid argon storage tank, namely a positive pressure taking pipeline, the H pipe is normally connected to a pressure transmitter through the three-way valve, copper pipes are laid on the remaining joint, the lengths of the laid copper pipes are different according to the position difference of each liquid argon storage tank, the copper pipes are built in the air through pipe galleries, and the copper pipes led out of each liquid argon storage tank are uniformly connected into an analysis chamber from the air. The three-way valve is adopted, so that the normal use of the liquid level measuring function of the liquid level meter is not influenced, the liquid level meter is connected to the positive pressure taking pipe H pipe, additional pressurization is not needed, the medium to be measured can be normally pressed out and conveyed through the internal pressure of the storage tank, the furthest liquid argon storage tank in a factory can reach hundreds of meters, and the liquid level meter can still be normally conveyed, and the internal additional pressurization is not needed.
The liquid-phase argon chromatographic on-line analyzer and the switching valve arranged on each copper pipe are arranged in the analysis chamber, and the on-line argon chromatographic analyzer has the advantages of high stability, short analysis time and the like. The copper tubes are converged into a main pipe through a switching valve, and the main pipe is connected into a liquid argon chromatograph on-line analyzer. Therefore, the medium in each liquid argon storage tank is concentrated and summarized into the assay analysis concentration chamber through the sampling copper pipe, the switching valve is manually controlled in the analysis chamber, liquid argon to be detected in different liquid argon storage tanks respectively enters the main pipe by utilizing the switch of each switching valve and flows into the liquid argon chromatographic online analyzer, the liquid argon components in each storage tank are sequentially analyzed, the online argon chromatographic analyzer has the advantages of high stability, short analysis time and the like, and can simultaneously analyze oxygen components, nitrogen components, methane components and hydrogen components in the liquid argon, and automatically generate an analysis report.
Example two
A plc control console is arranged in the analysis chamber, a switching valve of each copper pipe and a liquid argon chromatograph on-line analyzer are connected into the plc control system, and an operator can automatically control the copper pipe switching valve of the liquid argon storage tank to be detected respectively in the analysis chamber by operating the plc control console so as to detect liquid argon of each liquid argon storage tank respectively.
The utility model can monitor the liquid level and the liquid argon component in detail after being put into use in a factory, thereby greatly reducing the labor intensity, improving the working efficiency, shortening the analysis time, improving the analysis accuracy and providing powerful guarantee for the liquid sale.
The above examples are only illustrative of the preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model, and various modifications and improvements made by those skilled in the art to the technical solution of the present utility model should fall within the scope of protection defined by the claims of the present utility model without departing from the spirit of the design of the present utility model.
Claims (4)
1. The utility model provides an on-line monitoring liquid argon device, includes a plurality of liquid argon storage tanks, its characterized in that: each liquid argon storage tank is provided with a differential pressure type liquid level meter, each differential pressure type liquid level meter comprises an L pipe connected to the high part of the pipe wall of each liquid argon storage tank and an H pipe at the low part, wherein the H pipe is a positive pressure taking pipeline and used for monitoring liquid phase, the L pipe is a negative pressure taking pipeline and used for monitoring gas phase, a pressure transmitter is arranged at the junction of the L pipe and the H pipe, a three-way valve is arranged on the H pipe pipeline, a copper pipe is laid at the junction of the three-way valve and is communicated to a chromatographic analyzer of an analysis chamber, a change-over switch valve is arranged on a copper pipe led out of each liquid argon storage tank H pipe, and the change-over switch valve is arranged in the analysis chamber.
2. The on-line monitoring liquid argon apparatus of claim 1, wherein: each liquid argon reservoir H tube leads out of the copper tube through the tube lane from the air to the analysis chamber.
3. An on-line monitoring liquid argon apparatus as claimed in claim 1 or claim 2 wherein: the chromatographic analyzer is a liquid phase argon chromatographic online analyzer.
4. An on-line monitoring liquid argon apparatus as claimed in any one of claims 1 to 3 wherein: a plc control console is arranged in the analysis chamber, and the switch of the switching valve on each copper pipe is controlled by plc.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322354936.1U CN220438254U (en) | 2023-08-31 | 2023-08-31 | On-line monitoring liquid argon device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322354936.1U CN220438254U (en) | 2023-08-31 | 2023-08-31 | On-line monitoring liquid argon device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220438254U true CN220438254U (en) | 2024-02-02 |
Family
ID=89699698
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322354936.1U Active CN220438254U (en) | 2023-08-31 | 2023-08-31 | On-line monitoring liquid argon device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220438254U (en) |
-
2023
- 2023-08-31 CN CN202322354936.1U patent/CN220438254U/en active Active
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