CN209310366U - The device of high-purity liquid methane - Google Patents
The device of high-purity liquid methane Download PDFInfo
- Publication number
- CN209310366U CN209310366U CN201920099710.2U CN201920099710U CN209310366U CN 209310366 U CN209310366 U CN 209310366U CN 201920099710 U CN201920099710 U CN 201920099710U CN 209310366 U CN209310366 U CN 209310366U
- Authority
- CN
- China
- Prior art keywords
- methane
- removing column
- evaporator
- subcooler
- storage tank
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
The utility model discloses a kind of devices of high-purity liquid methane, including raw material liq methane storage tank, lightness-removing column, weight-removing column, evaporator I, evaporator II, condenser, subcooler, heat exchanger, methane compressor, 99.999% or more high-purity liquid methane product storage tank.It is circularly cooling agent that the utility model, which is dirty gases methane using the emptying end gas of weight-removing column, provides cooling capacity for device, reduces nitrogen circulating system, process equipment is simple, and can reduce the comprehensive energy consumption of device, save the cost.
Description
Technical field
The utility model relates to liquid methane preparation technique fields, and in particular to a kind of dress of high-purity liquid methane
It sets.
Background technique
With the fast development of electronics industry, high-purity methane will also have explosive demand；Furthermore high-purity methane
It will efficiently be applied in aerospace field, high-purity methane can substitute existing aerospace engine fuel, replace
Kerosene+liquid oxygen fuel mode.
High-purity methane largely uses molecular sieve purifier absorption to recycle nitrogen compression circularly cooling system at present
Take high-purity methane.Also need additional nitrogen as cycle refrigeration system in this way, gas medium is on the high side, complex process equipment,
Energy consumption is high.
Utility model content
The purpose of the utility model is to provide a kind of devices of high-purity liquid methane, to solve the prior art not
Foot.
The utility model uses following technical scheme:
A kind of device of high-purity liquid methane, including raw material liq methane storage tank, lightness-removing column, weight-removing column, evaporation
Device I, evaporator II, condenser, subcooler, heat exchanger, methane compressor, the storage of 99.999% or more high-purity liquid methane product
Slot,
Lightness-removing column, weight-removing column, evaporator I, evaporator II, condenser, subcooler, heat exchanger are set in ice chest, material liquid
Body methane storage tank, methane compressor, 99.999% or more high-purity liquid methane product storage tank are set to outside ice chest, and evaporator I is set
In lightness-removing column lower part, evaporator II is set to weight-removing column lower part, and condenser is set to weight-removing column top；
The outlet of raw material liq methane storage tank is connected with the raw material liq methane import of lightness-removing column, light group at the top of lightness-removing column
Waste gas outlet is divided to connect with external blowdown piping, the higher degree liquid methane outlet of lightness-removing column bottom is connected with weight-removing column；
The heavy constituent waste liquid outlet of weight-removing column bottom and external emptying piping connection, at the top of weight-removing column 99.999% with
Upper high-pure gas methane is connected with condenser, and 99.999% or more high-purity liquid methane of condenser is exported respectively and is subcooled
Connection at the top of device, weight-removing column, the connection of subcooler and 99.999% or more high-purity liquid methane product storage tank；
The dirty gases methane outlet of condenser is connected with subcooler, and subcooler is connected with heat exchanger, heat exchanger and methane pressure
The connection of contracting machine, methane compressor are connected with heat exchanger again, and heat exchanger is connected with evaporator I, evaporator II respectively, evaporator I's
Outlet, the outlet of evaporator II are connected to subcooler, and subcooler is connected with condenser, the liquid line and subcooler of condenser
Connection.
Further, the purity of raw material liq methane is 92-98% in raw material liq methane storage tank.
Further, its cooler of methane compressor and methane compressor be integrated or non-integration.
Further, raw material liq methane storage tank and 99.999% or more high-purity liquid methane product storage tank is respectively equipped with
Liquidometer.
The utility model has the beneficial effects that
1, it is circularly cooling agent that the utility model, which is dirty gases methane using the emptying end gas of weight-removing column, is provided for device cold
Amount, on the one hand reduces nitrogen circulating system, process equipment is simple；On the other hand the comprehensive energy consumption of device can be reduced, save at
This.Because boiling temperature under methane normal pressure is -162 DEG C, only need -162 DEG C of cooling capacity that can meet the need of device
It asks, and boiling temperature is -196 DEG C when usual manner does refrigeration cycle with nitrogen, under the normal pressure of nitrogen, their temperature difference difference 34
DEG C, the temperature difference is bigger, and the cold energy of waste is bigger, that is, efficiency is lower, and energy consumption waste is bigger.
2, the utility model enters lightness-removing column as raw material for the liquid methane of 92-98% using purity, using raw material liq
The cold energy of methane reduces cold damage, reduces energy consumption.
Detailed description of the invention
Fig. 1 is utility model device schematic diagram.
Specific embodiment
The utility model is done below with reference to embodiment and attached drawing and is further explained.The following example is merely to illustrate
The utility model, but be not used to limit the scope of the utility model.
A kind of device of high-purity liquid methane, as shown in Figure 1, include raw material liq methane storage tank 1, lightness-removing column 2,
Weight-removing column 3, evaporator I4, evaporator II5, condenser 6, subcooler 7, heat exchanger 9,8,99.999% or more methane compressor are high
Pure liquids methane product storage tank 10；
The purity of raw material liq methane is 92-98% in raw material liq methane storage tank 1, and raw material liq methane storage tank 1 is equipped with
First liquid level gauge 1-1,99.999% or more high-purity liquid methane product storage tank 10 are equipped with second liquid level gauge 10-1, methane compression
Its cooler 8-1 of machine 8 and methane compressor 8 be integrated or non-integration；
Lightness-removing column 2, weight-removing column 3, evaporator I4, evaporator II5, condenser 6, subcooler 7, heat exchanger 9 are set in ice chest,
Raw material liq methane storage tank 1,8,99.999% or more high-purity liquid methane product storage tank 10 of methane compressor are set to outside ice chest,
Evaporator I4 is set to 2 lower part of lightness-removing column, and evaporator II5 is set to 3 lower part of weight-removing column, and condenser 6 is set to 3 top of weight-removing column；
The outlet of raw material liq methane storage tank 1 is connected with the raw material liq methane import of lightness-removing column 2, and connecting line is equipped with
First regulating valve V1, the light component waste gas outlet at the top of lightness-removing column 2 and the blowdown piping of outside connect, 2 bottom of lightness-removing column compared with
The outlet of high-purity liquid methane and weight-removing column 3 connect, and connecting line is equipped with the 4th regulating valve V4；
The heavy constituent waste liquid outlet of 3 bottom of weight-removing column and external emptying piping connection, the 99.999% of 3 top of weight-removing column
The above high-pure gas methane and condenser 6 connect, 99.999% or more the high-purity liquid methane outlet of condenser 6 respectively and
It is connected at the top of subcooler 7, weight-removing column 3, neutralizes 3 top connecting line of weight-removing column and be equipped with the 5th regulating valve V5,7 He of subcooler
The connection of 99.999% or more high-purity liquid methane product storage tank 10, connecting line are equipped with the 7th regulating valve V7；
The dirty gases methane outlet of condenser 6 and subcooler 7 connect, and subcooler 7 and heat exchanger 9 connect, heat exchanger 9 and first
Alkane compressor 8 connects, and methane compressor 8 is connected with heat exchanger 9 again, and heat exchanger 9 is connected with evaporator I4, evaporator II5 respectively,
Connecting line is respectively equipped with the second regulating valve V2, the outlet of third regulating valve V3, evaporator I4, the outlet of evaporator II5 connect
It is connected to subcooler 7, subcooler 7 and condenser 6 connect, and connecting line is equipped with the 8th regulating valve V8, the liquid line of condenser 7
It is connected with subcooler 7, connecting line is equipped with the 6th regulating valve V6.
Using the method for above-mentioned apparatus high-purity liquid methane, include the following steps:
Step 1: the raw material liq methane that purity is 92-98% is removed by raw material liq methane storage tank 1 into lightness-removing column 2
Light component medium, light component medium are discharged at the top of lightness-removing column 2 as exhaust gas, and 2 bottom of lightness-removing column obtains higher degree liquid first
Alkane；
Step 2: higher degree liquid methane, which enters weight-removing column 3, removes heavy constituent medium, heavy constituent medium is from weight-removing column 3
Bottom is discharged as waste liquid, obtains 99.999% or more high-pure gas methane at the top of weight-removing column 3；
Step 3: it is 99.999% or more high-purity that 99.999% or more high-pure gas methane, which enters the liquefaction of condenser 6,
Liquid methane, 99.999% or more high-purity liquid methane a part are back at the top of weight-removing column 3 as phegma, rest part
Enter 99.999% or more high-purity liquid methane product storage tank 10 after the supercooling of subcooler 7；The dirty gas first at 6 top of condenser
Alkane is successively entered by entering after the compression of methane compressor 8 increases pressure after subcooler 7,9 re-heat of heat exchanger as circularly cooling agent
Heat exchanger 9 is cooling, and dirt gases methane a part after cooling enters evaporator I4, and another part enters evaporator II5, gives respectively
Evaporator I4, evaporator II5 provide heat and liquefy as subcooled liquid methane, the subcooled liquid of evaporator I4 and evaporator II5
Methane is used as cold source by entering condenser 6 after subcooler 7 further supercooling, is vaporizated into dirty gases methane, and dirty gases methane enters
Above-mentioned circulation；Subcooled liquid methane moiety enters subcooler 7 in condenser 6, supplements cooling capacity to subcooler 7.
Subcooled liquid methane of having more than needed in subcooler 7 when shutdown can be emptied by external pipe.
Claims (4)
1. a kind of device of high-purity liquid methane, which is characterized in that including raw material liq methane storage tank, lightness-removing column, take off
Weight tower, evaporator I, evaporator II, condenser, subcooler, heat exchanger, methane compressor, 99.999% or more high-purity liquid
Methane product storage tank,
Lightness-removing column, weight-removing column, evaporator I, evaporator II, condenser, subcooler, heat exchanger are set in ice chest, raw material liq first
Alkane storage tank, methane compressor, 99.999% or more high-purity liquid methane product storage tank are set to outside ice chest, and evaporator I is set to de-
Light tower lower part, evaporator II are set to weight-removing column lower part, and condenser is set to weight-removing column top；
The outlet of raw material liq methane storage tank is connected with the raw material liq methane import of lightness-removing column, and the light component at the top of lightness-removing column is useless
Gas outlet is connected with external blowdown piping, and the higher degree liquid methane outlet of lightness-removing column bottom is connected with weight-removing column；
The heavy constituent waste liquid outlet of weight-removing column bottom and external emptying piping connection, 99.999% or more at the top of weight-removing column are high
Purity gases methane is connected with condenser, the outlet of 99.999% or more high-purity liquid methane of condenser respectively with subcooler,
Connection at the top of weight-removing column, the connection of subcooler and 99.999% or more high-purity liquid methane product storage tank；
The dirty gases methane outlet of condenser is connected with subcooler, and subcooler is connected with heat exchanger, heat exchanger and methane compressor
Connection, methane compressor are connected with heat exchanger again, and heat exchanger is connected with evaporator I, evaporator II respectively, the outlet of evaporator I,
The outlet of evaporator II is connected to subcooler, and subcooler is connected with condenser, and the liquid line of condenser is connected with subcooler.
2. the device of high-purity liquid methane according to claim 1, which is characterized in that raw material liq methane storage tank
The purity of middle raw material liq methane is 92-98%.
3. the device of high-purity liquid methane according to claim 1, which is characterized in that its cooling of methane compressor
Device and methane compressor be integrated or non-integration.
4. the device of high-purity liquid methane according to claim 1, which is characterized in that raw material liq methane storage tank
Liquidometer is respectively equipped with 99.999% or more high-purity liquid methane product storage tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920099710.2U CN209310366U (en) | 2019-01-22 | 2019-01-22 | The device of high-purity liquid methane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920099710.2U CN209310366U (en) | 2019-01-22 | 2019-01-22 | The device of high-purity liquid methane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209310366U true CN209310366U (en) | 2019-08-27 |
Family
ID=67681098
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920099710.2U Active CN209310366U (en) | 2019-01-22 | 2019-01-22 | The device of high-purity liquid methane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209310366U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109654808A (en) * | 2019-01-22 | 2019-04-19 | 杭州凯德空分设备有限公司 | The device and method of high-purity liquid methane |
-
2019
- 2019-01-22 CN CN201920099710.2U patent/CN209310366U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109654808A (en) * | 2019-01-22 | 2019-04-19 | 杭州凯德空分设备有限公司 | The device and method of high-purity liquid methane |
| CN109654808B (en) * | 2019-01-22 | 2024-03-01 | 杭州凯德空分设备有限公司 | Device and method for preparing high-purity liquid methane |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| WO2021043182A1 (en) | Air separation apparatus and method using lng cold energy | |
| CN103196278B (en) | Air separation device | |
| CN112361712A (en) | Hydrogen liquefaction equipment adopting helium refrigeration cycle system | |
| CN109442867A (en) | A kind of interior purity nitrogen device for making and the method for liquefying of novel outer pressurization | |
| CN109341193A (en) | A kind of peak-trough electricity production liquid oxygen liquid nitrogen plan and method | |
| CN107702430A (en) | The re-liquefied system and method for ship | |
| CN209310366U (en) | The device of high-purity liquid methane | |
| CN201532078U (en) | Air separating system using liquefied natural gas cold energy | |
| CN206930061U (en) | A kind of space division system | |
| CN102072612B (en) | N-type pattern energy-saving gas manufacturing method | |
| CN214095167U (en) | Hydrogen liquefaction equipment adopting helium refrigeration cycle system | |
| CN106219495A (en) | A kind of small-sized PSA and the combination unit of small-sized cryogenic air separation unit | |
| CN102977910B (en) | System and method for light hydrocarbon recovery | |
| CN114485051B (en) | Liquid ammonia double-working-condition refrigerating system and liquid carbon dioxide production equipment | |
| CN202216490U (en) | Extraction device for high-purity liquid neon | |
| CN108224900A (en) | A kind of oxygen nitrogen and argon piece-rate system using cold energy of liquefied natural gas | |
| CN107641535A (en) | Film deep cooling integrated separation purifies the device and method of multiple gases | |
| CN109654808A (en) | The device and method of high-purity liquid methane | |
| CN206676210U (en) | A kind of collecting carbonic anhydride liquefying plant | |
| CN202648306U (en) | Air separating device | |
| CN209027187U (en) | A kind of peak-trough electricity production liquid oxygen liquid nitrogen plan | |
| CN209116371U (en) | The system that gas supply is stablized in a kind of low energy consumption | |
| CN207751222U (en) | A kind of LNG cold energy uses are thermally integrated rectifying space division system | |
| CN208907712U (en) | The integrated sled block co 2 liquefaction purifying plant of one kind | |
| CN106731600A (en) | A kind of collecting carbonic anhydride liquefying plant |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230111 Address after: No. 66-5, Shanxiba, Liangzhu Village, Liangzhu Street, Yuhang District, Hangzhou City, Zhejiang Province 310000 Patentee after: Zhejiang Yuandao Power Group Co.,Ltd. Address before: 310121 Shige Community, Zhongtai Street, Yuhang District, Hangzhou City, Zhejiang Province Patentee before: HANGZHOU CANDO AIR SEPARATION PLANT CO.,LTD. |