CN220338875U - Liquefied gas crude purification device - Google Patents
Liquefied gas crude purification device Download PDFInfo
- Publication number
- CN220338875U CN220338875U CN202322023513.1U CN202322023513U CN220338875U CN 220338875 U CN220338875 U CN 220338875U CN 202322023513 U CN202322023513 U CN 202322023513U CN 220338875 U CN220338875 U CN 220338875U
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- Prior art keywords
- inner cylinder
- pipeline
- cylinder
- cold
- purification
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Links
- 238000000746 purification Methods 0.000 title claims abstract description 56
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 46
- 239000007789 gas Substances 0.000 claims abstract description 42
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 23
- 239000007788 liquid Substances 0.000 claims abstract description 21
- 239000012071 phase Substances 0.000 claims abstract description 20
- 239000007791 liquid phase Substances 0.000 claims abstract description 19
- 238000001514 detection method Methods 0.000 claims description 9
- 238000001816 cooling Methods 0.000 abstract description 9
- 239000000126 substance Substances 0.000 abstract description 7
- 238000009835 boiling Methods 0.000 abstract description 5
- 238000002844 melting Methods 0.000 abstract description 5
- 230000008018 melting Effects 0.000 abstract description 5
- 239000012535 impurity Substances 0.000 abstract description 4
- 238000000034 method Methods 0.000 abstract description 4
- 230000005484 gravity Effects 0.000 abstract description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000002826 coolant Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 230000003631 expected effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Landscapes
- Separation By Low-Temperature Treatments (AREA)
Abstract
The utility model discloses a liquefied gas crude purification device, which comprises a pressure vessel body, wherein the pressure vessel body comprises an outer cylinder and an inner cylinder; a cold energy supply line in contact with the inner cylinder; the input end of the cold quantity supply pipeline is communicated with an external liquid nitrogen supply device, and the liquid nitrogen supply device conveys liquid nitrogen into the cold quantity supply pipeline; the inner cylinder is communicated with a purification medium liquid phase pipeline, and the upper part of one side of the inner cylinder opposite to the purification medium liquid phase pipeline is communicated with a gas phase outlet pipeline; one end of the gas phase outlet pipeline, which is far away from the inner cylinder, is connected with a vacuum pump. The inner cylinder of the crude purification device is input with purification medium through a purification medium liquid phase pipeline, the upper end of the inner cylinder is communicated with a gas phase outlet pipeline, and the cooling capacity supply pipeline is used as a pipeline for cooling the inner cylinder to realize cooling by liquid nitrogen. The device simplifies the rectification flow and process by utilizing the rectification principle, and separates and discharges impurities in substances at different temperatures by utilizing the difference of melting boiling points and different specific gravities of the substances so as to achieve the purpose of crude purification.
Description
Technical Field
The utility model relates to the technical field of liquefied gas purification, in particular to a liquefied gas crude purification device.
Background
In the use process of liquefied gas, there is often a problem that the purity of the gas is insufficient and cannot be used or the expected effect cannot be achieved after the use. It has been found that this problem is caused by an excessively high air content (mainly oxygen and nitrogen content) in the liquefied gas.
In the prior art, the crude purification generally utilizes the difference of melting boiling points to separate substances, while the crude purification device in the prior art generally mainly adopts a system formed by connecting a plurality of devices in series, or the structure of the purification device is too complex and does not meet the requirement of the input cost of the crude purification.
Accordingly, based on the above technical problems, a person skilled in the art is required to develop a liquefied gas crude purification apparatus.
Disclosure of Invention
The utility model aims to provide a liquefied gas crude purification device which can not only finish crude purification of liquefied gas in a short time to reduce the content of oxygen and nitrogen, but also solve the problem of high input cost of the purification device in the current stage.
In order to achieve the above object, the present utility model provides the following technical solutions:
the utility model relates to a liquefied gas crude purification device, which comprises:
the pressure vessel comprises a pressure vessel body, wherein the pressure vessel body comprises an outer cylinder and an inner cylinder, and a certain space is reserved between the inner cylinder and the outer cylinder;
a cold energy supply line in contact with the inner cylinder;
the cold energy supply pipeline extends to a space between the outer cylinder and the inner cylinder and is in contact with the inner cylinder so as to realize heat exchange with a medium in the inner cylinder;
the input end of the cold energy supply pipeline is communicated with external liquid nitrogen supply equipment, and the liquid nitrogen supply equipment conveys liquid nitrogen into the cold energy supply pipeline;
the inner cylinder is communicated with a purification medium liquid phase pipeline, and the upper part of one side of the inner cylinder opposite to the purification medium liquid phase pipeline is communicated with a gas phase outlet pipeline;
one end of the gas phase outlet pipeline, which is far away from the inner cylinder, is connected with a vacuum pump.
Further, the height of the outer cylinder is larger than that of the inner cylinder;
the upper ends of the outer cylinder and the inner cylinder are sealed through a seal head;
the outer cylinder is characterized in that a thermometer is arranged on the sealing head of the outer cylinder, the detection end of the thermometer penetrates through the sealing head of the outer cylinder and extends to a space between the outer cylinder and the inner cylinder, and the detection end of the thermometer is close to one side of the outer wall of the inner cylinder.
Further, a pressure gauge is arranged on the seal head of the inner cylinder, and a detection end of the pressure gauge penetrates through the seal head of the inner cylinder and extends to the inner part of the inner cylinder.
Further, the cold energy supply line includes:
a cold medium inlet section and a cold medium outlet section; and
a cold medium heat transfer section located in the cold medium inlet section and the cold medium outlet section;
the Leng Jiezhi heat transfer section is wound on the outer wall of the inner cylinder from the lower part of the inner cylinder to the upper part of the inner cylinder;
valves are arranged on the cold medium inlet section and the cold medium outlet section.
Further, a valve is arranged on the purification medium liquid phase pipeline;
the output end of the purification medium liquid phase pipeline extends to the bottom of the inner part of the inner cylinder;
one end of the gas phase outlet pipeline extends to the upper part of the inner cylinder, and a valve is arranged on the gas phase outlet pipeline.
In the technical scheme, the liquefied gas crude purification device provided by the utility model has the following beneficial effects:
the crude purification device is formed into a sleeve structure through the outer cylinder and the inner cylinder, purification media are input into the inner cylinder through a purification media liquid phase pipeline, a gas phase outlet pipeline is communicated with the upper end of the inner cylinder, the gas phase outlet pipeline is connected with a vacuum pump, and cooling is realized by liquid nitrogen by taking a cold energy supply pipeline as a pipeline for cooling the inner cylinder. The device simplifies the rectification flow and process by utilizing the rectification principle, and separates and discharges impurities in substances at different temperatures by utilizing the difference of melting boiling points and different specific gravities of the substances so as to achieve the purpose of crude purification.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present utility model, and other drawings may be obtained according to these drawings for a person having ordinary skill in the art.
Fig. 1 is a schematic structural diagram of a liquefied gas crude purification device according to an embodiment of the present utility model.
101. An outer cylinder; 102. an inner cylinder; 103. a seal head;
2. a cold energy supply line;
201. a cold medium inlet section; 202. a cold medium discharge section; 203. a cold medium heat transfer section;
301. a thermometer; 302. a pressure gauge;
401. a purification medium liquid phase pipeline; 402. a gas phase outlet line; 403. and a vacuum pump.
Detailed Description
In order to make the technical scheme of the present utility model better understood by those skilled in the art, the present utility model will be further described in detail with reference to the accompanying drawings.
See fig. 1;
the embodiment discloses a liquefied gas crude purification device, this crude purification device includes:
the pressure vessel comprises a pressure vessel body, wherein the pressure vessel body comprises an outer cylinder 101 and an inner cylinder 102, and a certain space is reserved between the inner cylinder 102 and the outer cylinder 101;
a cold energy supply line 2 in contact with the inner tube 102;
the cold supply pipeline 2 extends to the space between the outer cylinder 101 and the inner cylinder 102 and is in contact with the inner cylinder 102 to realize heat exchange with the medium in the inner cylinder 102;
the input end of the cold energy supply pipeline 2 is communicated with an external liquid nitrogen supply device, and the liquid nitrogen supply device conveys liquid nitrogen into the cold energy supply pipeline 2;
the inner cylinder 102 is communicated with a purification medium liquid phase pipeline 401, and the upper part of one side of the inner cylinder opposite to the purification medium liquid phase pipeline 401 is communicated with a gas phase outlet pipeline 402;
the end of the gas phase outlet pipeline 402, which is far away from the inner cylinder, is connected with a vacuum pump 403.
Specifically, the embodiment discloses a device suitable for crude purification of liquefied gas, and the device mainly utilizes the rectification principle, and through the difference of material melting boiling point and proportion, the mode of providing cold energy with the outside is separated and discharged at different temperatures to reach crude purification's purpose with impurity in the material. The device of the embodiment mainly comprises an outer cylinder 101, an inner cylinder 102 and a cold energy supply pipeline 2. The gap reserved between the inner tube 102 and the outer tube 101 is used for arranging the cold energy supply pipeline 2. Liquid nitrogen is used as a cooling medium to provide the cooling capacity required by the inner barrel 102. The low-temperature heat-insulating pressure vessel consists of an outer cylinder 101 and an inner cylinder 102. Wherein, the liquefied gas to be purified enters the inner cylinder 102 through the liquid phase pipeline of the purifying medium, and the inner cylinder is cooled by utilizing the low temperature of the liquid nitrogen in the cold energy supply pipeline 2.
Preferably, the height of the outer cylinder 101 of the present embodiment is greater than the height of the inner cylinder 102;
the upper ends of the outer cylinder 101 and the inner cylinder 102 are sealed by a seal head 103;
the seal head 103 of the outer cylinder 101 is provided with a thermometer 301, a detection end of the thermometer 301 passes through the seal head 103 of the outer cylinder 101 and extends to a space between the outer cylinder 101 and the inner cylinder 102, and the detection end of the thermometer 301 is close to one side of the outer wall of the inner cylinder 102.
In order to detect the pressure value inside the inner cylinder 102, the seal head 103 of the inner cylinder 102 in this embodiment is provided with a pressure gauge 302, and a detection end of the pressure gauge 302 passes through the seal head 103 of the inner cylinder 102 and extends into the inner cylinder 102.
The cooling capacity supply line 2 of the present embodiment includes:
a cold medium inlet section 201 and a cold medium outlet section 202; and
a cold medium heat transfer section 203 located at the cold medium inlet section 201 and the cold medium outlet section 202;
the cooling medium heat transfer section 203 is wound on the outer wall of the inner cylinder 102 from the lower part of the inner cylinder 102 to the upper part of the inner cylinder 102;
valves are installed on both the cold medium inlet section 201 and the cold medium outlet section 202.
A valve is arranged on the purification medium liquid phase pipeline 401;
the output end of the purification medium liquid phase pipeline 401 extends to the bottom of the inner cylinder 102;
one end of the gas phase outlet line 402 extends to the upper portion of the interior of the inner barrel 102, and a valve is mounted on the gas phase outlet line 402.
During rough purification, liquid nitrogen is input into the inner barrel from one end of the cold medium inlet section 201, a valve of a liquid nitrogen outlet is opened, the inner barrel is cooled by using the low temperature of the liquid nitrogen, at the moment, the data of the pressure gauge 302 and the thermometer 301 are focused, after the set temperature and pressure are reached, the liquid nitrogen is stopped from being introduced, all stop valves on the container are closed, a vacuum pump 403 is opened, a valve of a gas phase outlet pipeline 402 is opened, the medium is vacuumized, the vacuuming time is not excessively long, after the vacuuming is finished, after the medium is heated to the normal temperature, the purity is analyzed and detected, the requirement is met, and if the requirement is not met, the next rough purification is continuously repeated.
In the technical scheme, the liquefied gas crude purification device provided by the utility model has the following beneficial effects:
the crude purification device is formed into a sleeve structure through an outer cylinder 101 and an inner cylinder 102, purification media are input into the inner cylinder 102 through a purification media liquid phase pipeline 401, a gas phase outlet pipeline 402 is communicated with the upper end of the inner cylinder 102, a vacuum pump 403 is connected, and cooling is realized by liquid nitrogen by taking a cold energy supply pipeline 2 as a pipeline for cooling the inner cylinder 102. The device simplifies the rectification flow and process by utilizing the rectification principle, and separates and discharges impurities in substances at different temperatures by utilizing the difference of melting boiling points and different specific gravities of the substances so as to achieve the purpose of crude purification.
While certain exemplary embodiments of the present utility model have been described above by way of illustration only, it will be apparent to those of ordinary skill in the art that modifications may be made to the described embodiments in various different ways without departing from the spirit and scope of the utility model. Accordingly, the drawings and description are to be regarded as illustrative in nature and not as restrictive of the scope of the utility model, which is defined by the appended claims.
Claims (5)
1. The liquefied gas crude purification device is characterized in that the crude purification device comprises:
the pressure vessel comprises a pressure vessel body, wherein the pressure vessel body comprises an outer cylinder (101) and an inner cylinder (102), and a certain space is reserved between the inner cylinder (102) and the outer cylinder (101);
a cold energy supply line (2) in contact with the inner tube (102);
the cold energy supply pipeline (2) extends to a space between the outer cylinder (101) and the inner cylinder (102) and is contacted with the inner cylinder (102) to realize heat exchange with a medium in the inner cylinder (102);
the input end of the cold energy supply pipeline (2) is communicated with an external liquid nitrogen supply device, and the liquid nitrogen supply device conveys liquid nitrogen into the cold energy supply pipeline (2);
the inner cylinder (102) is communicated with a purification medium liquid phase pipeline (401), and the upper part of one side of the inner cylinder (102) opposite to the purification medium liquid phase pipeline (401) is communicated with a gas phase outlet pipeline (402);
one end of the gas phase outlet pipeline (402) far away from the inner cylinder (102) is connected with a vacuum pump (403).
2. The liquefied gas crude purification apparatus as claimed in claim 1, wherein the height of the outer cylinder (101) is greater than the height of the inner cylinder (102);
the upper ends of the outer cylinder (101) and the inner cylinder (102) are sealed through a seal head (103);
the outer cylinder is characterized in that a thermometer (301) is arranged on the seal head (103) of the outer cylinder (101), the detection end of the thermometer (301) penetrates through the seal head (103) of the outer cylinder (101) and extends to a space between the outer cylinder (101) and the inner cylinder (102), and the detection end of the thermometer (301) is close to one side of the outer wall of the inner cylinder (102).
3. The liquefied gas crude purification device according to claim 2, wherein a pressure gauge (302) is provided on the seal head (103) of the inner cylinder (102), and a detection end of the pressure gauge (302) passes through the seal head (103) of the inner cylinder (102) and extends into the inner cylinder (102).
4. The liquefied gas crude purification apparatus as claimed in claim 1, wherein the cold supply line (2) comprises:
a cold medium inlet section (201) and a cold medium outlet section (202); and
a cold medium heat transfer section (203) located in the cold medium inlet section (201) and the cold medium outlet section (202);
the Leng Jiezhi heat transfer section (203) is wound on the outer wall of the inner cylinder (102) from the lower part of the inner cylinder (102) to the upper part of the inner cylinder (102);
valves are arranged on the cold medium inlet section (201) and the cold medium outlet section (202).
5. The liquefied gas crude purification device as claimed in claim 4, wherein a valve is installed on the purification medium liquid phase pipeline (401);
the output end of the purification medium liquid phase pipeline (401) extends to the bottom of the inner part of the inner cylinder (102);
one end of the gas phase outlet pipeline (402) extends to the upper part of the inner cylinder (102), and a valve is arranged on the gas phase outlet pipeline (402).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322023513.1U CN220338875U (en) | 2023-07-31 | 2023-07-31 | Liquefied gas crude purification device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322023513.1U CN220338875U (en) | 2023-07-31 | 2023-07-31 | Liquefied gas crude purification device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220338875U true CN220338875U (en) | 2024-01-12 |
Family
ID=89446037
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322023513.1U Active CN220338875U (en) | 2023-07-31 | 2023-07-31 | Liquefied gas crude purification device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220338875U (en) |
-
2023
- 2023-07-31 CN CN202322023513.1U patent/CN220338875U/en active Active
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| GR01 | Patent grant |