Krypton and xenon content detection device for externally-sold poor krypton and xenon liquid oxygen

Abstract

The utility model relates to a krypton and xenon content detection device for external poor krypton and xenon liquid oxygen. Comprising a tank car used for filling poor krypton-xenon liquid oxygen, a filling port of the tank car is connected with a pressure stabilizing unit used for keeping the internal pressure of the tank car stable, and an outlet of the tank car is connected with a krypton-xenon content detection unit through a dehydration vaporization unit. The tank car has the advantages of being simple in structure, reasonable in design and capable of adjusting the pressure in the tank car so as to achieve convenient gasification, meanwhile, by arranging the dehydration vaporization unit, the purpose of dehydrating while gasifying liquid oxygen can be achieved, further, the arrangement can provide buffering for the krypton and xenon content detection unit, and the detection accuracy is improved. The detection unit is prevented from being scoured by overlarge gas phase pressure, so that the service life of the krypton and xenon content detection unit is prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of poor krypton xenon liquid oxygen detects, especially to a kind of krypton xenon content detection device for sale poor krypton xenon liquid oxygen. BACKGROUND

[0002] Krypton and xenon have important use in many industrial and scientific research fields;Currently, traditional krypton xenon is obtained by extraction in liquid oxygen, and krypton and xenon are rare gases with extremely small content in air, and liquid oxygen is a common product in industrial oxygen production process, so a series of complex processing steps are required for extracting poor krypton xenon product from liquid oxygen containing krypton and xenon;As known from the above, poor krypton xenon liquid oxygen is the raw material for producing krypton xenon, and based on this, the content of krypton xenon in liquid oxygen in tank car is related to the price of liquid oxygen in the tank car, and when the content of krypton xenon is high, the price of liquid oxygen is high, and when the content of krypton xenon is low, the price of liquid oxygen is low;Further, when krypton and xenon are separated and purified in liquid oxygen, the content of krypton and xenon needs to be determined, and when the content of krypton and xenon is uncertain or the content of krypton and xenon is high and low, it will cause large fluctuations in production load, which not only affects the entire extraction process of krypton and xenon, but also may cause the entire krypton and xenon separation and purification system to be paralyzed.

[0003] The existing detection method for the content of krypton and xenon in liquid oxygen in tank car is as follows: first, the tank car is filled with liquid oxygen, and after filling, an analysis panel and a krypton xenon content analyzer (TCD) are arranged at the outlet of the tank car to directly detect the content of krypton and xenon in liquid oxygen;The above method has the following defects: 1, liquid oxygen is liquid krypton xenon, which is not uniformly distributed in liquid oxygen, resulting in inaccurate detection results;2, liquid phase in tank car directly enters analysis panel, which has unstable pressure and unstable gasification process, finally resulting in fluctuation of analysis data, and the deviation of detection data is 100-200%, which cannot provide strong data support for subsequent krypton and xenon refining. 3, liquid oxygen contains water and has excessive pressure, which shortens the service life of krypton xenon content analyzer (TCD), and the general operation cycle is 3 months. UTILITY MODEL CONTENT

[0004] The utility model aims at solving the defects in the prior art, and provides a krypton xenon content detection device for sale poor krypton xenon liquid oxygen.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0006] A krypton xenon content detection device for sale poor krypton xenon liquid oxygen, the detection device includes a tank car for filling poor krypton xenon liquid oxygen, the filling port of the tank car is connected with a pressure stabilizing unit for maintaining the internal pressure of the tank car stable, and the outlet of the tank car is connected with a krypton xenon content detection unit through a dehydration vaporization unit.

[0007] The utility model discloses beneficial effect is: through setting up the stable voltage unit can realize the pressure of stable tank car inside, make the liquid oxygen pressure steady condition under the convenience in the subsequent process gasification, simultaneously through setting up the dehydration vaporization unit can realize the purpose of removing moisture content while gasifying liquid oxygen, further above -mentioned setting can provide the buffer for krypton xenon content detection unit, avoids the gas phase pressure too big to the detection unit and washes, thereby prolongs the service life of krypton xenon content detection unit.

[0008] Preferably, the dehydration vaporization unit comprises at least a buffer tank, the outlet of the tank car is connected to the inlet of the buffer tank through a pipeline, the pipeline extends to the lower part of the buffer tank through the inlet of the buffer tank, the middle part of the buffer tank is provided with a dehydration filler layer for buffering the gas phase and realizing dehydration of the gas phase, and the upper part of the dehydration filler layer is provided with a buffer tank outlet corresponding to the krypton xenon content detection unit.

[0009] Preferably, the pipeline is arranged at the lower one-third of the buffer tank.

[0010] Preferably, the dehydration vaporization unit further comprises a long pipeline arranged at the outlet of the buffer tank.

[0011] Preferably, the long pipeline is in a spiral structure.

[0012] Preferably, the outlet of the tank car is provided with an outlet flange, the outlet flange is connected to the inlet of the buffer tank through a gooseneck joint and a flow valve.

[0013] Preferably, the stable pressure unit is a nitrogen pipeline network, and the nitrogen pipeline network is connected to the filling port of the tank car through a pressure stabilizing valve.

[0014] Preferably, the krypton xenon content detection unit comprises an analysis panel connected to the outlet of the long pipeline, and the outlet of the analysis panel is connected to a krypton xenon content analyzer.

[0015] The krypton-xenon content detection device for the externally sold liquid oxygen with low krypton-xenon content prepared according to the above scheme can realize stable pressure in the tank truck by arranging the pressure stabilizing unit, can realize gasification of the liquid oxygen and reduce the erosion and corrosion of the equipment by the pressure, and can make the gas phase after gasification in a homogeneous state and remove water, so that the krypton-xenon content detection accuracy is improved under the premise of prolonging the service life of the equipment. The buffer tank arranged in the utility model is used for realizing buffering and gasification of the liquid oxygen, and simultaneously realizes removal of water, the removal of water includes that water enters the bottom of the buffer tank under the action of gravity and removal of water by the gas phase through the dehydration filler layer; the long pipeline arranged in the utility model can make the liquid phase carried by the gas phase fully gasify, can make the gas phase fully mix and enter the krypton-xenon content detection unit, and lays a foundation for ensuring the accuracy of the detection structure; further, the long pipeline is in a spiral structure, can effectively save the floor area of the equipment, and the spiral pipeline design can have the defect that water is accumulated at the bottom, and in a serious case, can have the freezing blockage phenomenon; the buffer tank can remove water, can not only prolong the service life of the krypton-xenon content detection unit, but also can solve the characteristics of the water accumulation in the spiral pipeline. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a structural schematic view of the utility model.

[0017] In the drawing:

[0018] 1, tank truck; 2, buffer tank; 3, dehydration filler layer; 4, buffer tank outlet; 5, long pipeline; 6, outlet flange; 7, sheep head joint; 8, flow valve; 9, nitrogen pipe network; 10, pressure stabilizing valve; 11, analysis panel; 12, krypton-xenon content analysis instrument. DETAILED DESCRIPTION

[0019] The technical scheme in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments.

[0020] In the description of the utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model.

[0021] Reference Figure 1The utility model discloses a kind of krypton-xenon content detection devices for selling poor krypton-xenon liquid oxygen, the detection device includes tank truck 1 for filling poor krypton-xenon liquid oxygen, the filling port of the tank truck 1 is connected with the pressure stabilizing unit for keeping the internal pressure of tank truck 1 stable, and the outlet of tank truck 1 is connected with krypton-xenon content detection unit through dehydration vaporization unit.The utility model is mainly used for determining the krypton-xenon content when selling poor krypton-xenon liquid oxygen, to determine the price of this batch of liquid oxygen and facilitate subsequent use of related process for the purpose of krypton-xenon purification;By setting pressure stabilizing unit, the liquid oxygen pressure can be kept stable, so that the characteristics of facilitating gasification in subsequent process are ensured;By setting dehydration vaporization unit, the liquid oxygen can be fully gasified, and dehydration is also realized, which ensures the accuracy of krypton-xenon detection and avoids the problem of water entering the krypton-xenon content detection unit, thereby affecting the service life.

[0022] Further, the dehydration vaporization unit at least includes buffer tank 2, the outlet of tank truck 1 is connected with the inlet of buffer tank 2 through pipeline, the pipeline extends to the lower part of buffer tank 2 through the inlet of buffer tank 2, and the middle part of buffer tank 2 is provided with dehydration filler layer 3 for buffering gas phase and realizing gas phase dehydration, and the upper part of dehydration filler layer 3 is provided with buffer tank outlet 4 corresponding to krypton-xenon content detection unit.The utility model can realize the characteristics of facilitating gasification and removing water by using its own gravity by extending the pipeline to the lower part of buffer tank 2, and can realize the purpose of further dehydration by cooperating with dehydration filler layer 3, and the buffer tank outlet 4 is arranged in the upper middle part to enable the gasified oxygen to be discharged into subsequent devices.The above arrangement can realize the characteristics of buffering pressure to avoid affecting the equipment in krypton-xenon content detection unit, and realize dehydration and gasification.

[0023] Further, the pipeline is arranged at the lower one-third of buffer tank 2 from bottom to top.

[0024] Further, the dehydration vaporization unit further includes long pipeline 5 arranged at buffer tank outlet 4.The utility model sets long pipeline 5 to realize the full gasification of a small amount of liquid oxygen mixed in oxygen, and make oxygen uniformly mixed to achieve the characteristics of homogeneity, which lays a foundation for accurate detection of krypton-xenon in subsequent process.

[0025] Further, the long pipeline 5 is in spiral structure.By setting long pipeline 5 in spiral structure, the purpose of saving floor area can be achieved, but long pipeline 5 in spiral structure has the characteristics that liquid is easy to accumulate at the bottom elbow, especially when the temperature of oxygen is low, which may cause freezing blockage, and the utility model realizes dehydration of gas oxygen by setting buffer tank 2 and corresponding structure, to achieve the purpose of solving the above technical problems.

[0026] Further, the outlet of the tank truck 1 is provided with an outlet flange 6, which is connected with the inlet of the buffer tank 2 through a gooseneck joint 7 and a flow valve 8. Through the above setting, the tank truck 1 and the buffer tank 2 can be quickly connected, so that the detection is convenient.

[0027] Further, the stable pressure unit is a nitrogen pipe network 9, which is connected with the filling port of the tank truck 1 through a stable pressure valve 10. In the utility model, the nitrogen from the nitrogen pipe network 9 is selected as the stable pressure gas. Firstly, the nitrogen is easy to separate from the oxygen. Secondly, the pressure of the nitrogen in the nitrogen pipe network 9 is stable. Therefore, through the above setting, the liquid oxygen pressure in the tank truck 1 is stable.

[0028] Further, the krypton-xenon content detection unit comprises an analysis panel 11 connected with the outlet of the long pipeline 5, and the outlet of the analysis panel 11 is connected with a krypton-xenon content analyzer 12.

[0029] The utility model discloses a liquid oxygen analysis device, which comprises a buffer tank, a nitrogen pipe network, a flow valve, a stable pressure valve, a tank car, a discharge valve, a gas analyzer, a gas analysis panel and a krypton-xenon content detection unit. The working principle of the utility model is as follows: when the utility model is used, the nitrogen pipe network 9 is connected together with the filling opening of the tank car 1 through the stable pressure valve 10, the outlet flange 6 of the tank car 1 is quickly connected together with the sheep horn joint 7, the flow valve 8 and the stable pressure valve 10 are opened after preparation, the nitrogen (the pressure is 0.4Mpa) in the nitrogen pipe network 9 enters the tank car 1 to carry out pressurization, the discharge valve is fully opened during analysis, the temperature and the pressure of the liquid oxygen are kept stable; the liquid oxygen in the tank car 1 enters the buffer tank 2 through the flow valve 8, the buffer tank 2 can effectively buffer pressure fluctuation, so that the system operation is more stable (the protection can prolong the service life of the subsequent related equipment, can also make the analyzed gas fully mix and be uniform, can play a buffering effect, avoids the front gas evacuation), the water in the raw material is fully layered and removed by extending the pipeline to the lower part in the buffer tank 2 and setting the dehydration filler layer 3, a large amount of clear water is avoided to enter the subsequent spiral structure long pipeline 5 and the krypton-xenon content detection unit, the fully gasified oxygen enters the analysis panel 11 under the homogeneous state, the pressure is about 0.3Mpa, the oxygen passing through the analysis panel 11 enters the krypton-xenon content analyzer 12 under the premise of stable pressure to detect the krypton-xenon content; preferably, the krypton-xenon content detection unit can replace the gas in the inside before use, so as to guarantee the accuracy of the detection result; the process can use the gas with the pressure of 0.2Mpa and the flow of 120ml / min to replace the krypton-xenon content detection unit for 20 minutes, so that the dead gas in the pipeline is discharged clean, the flow is adjusted to 20ml / min after 20 minutes, the analysis is carried out by the analysis instrument start key, and finally the stable analysis of the high concentration krypton-xenon in the liquid oxygen is realized, which provides an important basis for the subsequent krypton-xenon extraction and refining. The utility model has the advantages of simple analysis process and easy operation, and utilizes the principle of stable pressure and temperature, adds the buffer tank to make the liquid oxygen mixed gasification and mixing, realizes dehydration, and lays the foundation for the accuracy of the krypton-xenon content detection result in the subsequent process.

Claims

1. A krypton-xenon content detection device for commercially available lean krypton-xenon liquid oxygen, the device comprising a tanker truck (1) for filling lean krypton-xenon liquid oxygen, characterized in that, The filling port of the tank truck (1) is connected with a pressure stabilizing unit for keeping the pressure inside the tank truck (1) stable, and the outlet of the tank truck (1) is connected with a krypton-xenon content detecting unit through a dehydrating and vaporizing unit; The dehydrating and vaporizing unit comprises at least a buffer tank (2), the outlet of the tank truck (1) is connected with the inlet of the buffer tank (2) through a pipeline, the pipeline extends to the lower part of the buffer tank (2) through the inlet of the buffer tank (2), the middle part of the buffer tank (2) is provided with a dehydrating filler layer (3) for buffering the gas phase and realizing the dehydration of the gas phase, and the upper part of the dehydrating filler layer (3) is provided with a buffer tank outlet (4) corresponding to the krypton-xenon content detecting unit.

2. The device for detecting the content of krypton and xenon according to claim 1, wherein The pipeline is arranged at the lower one-third of the buffer tank (2).

3. The device for detecting the content of krypton and xenon according to claim 1, wherein The dehydrating and vaporizing unit further comprises a long pipeline (5) arranged at the buffer tank outlet (4).

4. The device for detecting the content of krypton and xenon according to claim 3, wherein The long pipeline (5) has a spiral structure.

5. The device for detecting the content of krypton and xenon according to claim 1, wherein The outlet of the tank truck (1) is provided with an outlet flange (6), the outlet flange (6) is connected with the inlet of the buffer tank (2) through a gooseneck joint (7) and a flow valve (8).

6. The device for detecting the content of krypton and xenon according to claim 1, wherein The pressure stabilizing unit is a nitrogen pipeline network (9), the nitrogen pipeline network (9) is connected with the filling port of the tank truck (1) through a pressure stabilizing valve (10).

7. The device for detecting the content of krypton and xenon according to claim 1, wherein The krypton-xenon content detecting unit comprises an analysis panel (11) connected with the outlet of the long pipeline (5), and the outlet of the analysis panel (11) is connected with a krypton-xenon content analysis instrument (12).

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