CN105299443B - Liquefied gas filling and replacement method - Google Patents
Liquefied gas filling and replacement method Download PDFInfo
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- CN105299443B CN105299443B CN201510811429.3A CN201510811429A CN105299443B CN 105299443 B CN105299443 B CN 105299443B CN 201510811429 A CN201510811429 A CN 201510811429A CN 105299443 B CN105299443 B CN 105299443B
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- gas
- pipe valve
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Abstract
The invention discloses a liquefied gas filling and replacement method. The method is characterized in that a liquefied gas tank is connected with a finished product tank, a gas-phase pipe opening of the liquefied gas tank is connected with a gas-phase pipe opening of the finished product tank, a liquid-phase pipe opening of the liquefied gas tank is connected with a pumping outlet of the finished product tank, and a nitrogen pipeline and an exhaust suction pipeline are additionally arranged between the gas-phase pipe opening of the liquefied gas tank and the liquid-phase pipe opening of the liquefied gas tank. The liquefied gas filling and replacement method has the beneficial effects that replacement is convenient, exhaust and pressure relief of a tank car and replacement cleaning of the tank car are facilitated, and no potential safety hazard exists.
Description
Technical field
The present invention relates to a kind of liquefied gas filling method of replacing.
Background technology
The storage tank or groove tank car for filling liquefied gas needs release to check annual test or carry out inert gas replacement protection every year.It is general
Logical filling apparatus can only carry out fill or discharging, not possess storage tank aerofluxuss release or the function with inert gas replacement.Because Jing it is normal
Dismounting and tank body adpting flange are needed, and potential safety hazard are brought to human users.
The content of the invention
The purpose of the present invention, is to overcome above-mentioned limitation, convenient so as to provide a kind of displacement, facilitates groove tank vehicle exhaust release
And enter line replacement cleaning, the liquefied gas filling method of replacing without potential safety hazard to groove tank car.
The purpose of the present invention is achieved through the following technical solutions：A kind of liquefied gas filling method of replacing, by liquefied gas
Body tank is connected with finished pot, and wherein the liquefied gas tank gas phase mouth of pipe is connected with the finished pot gas phase mouth of pipe, liquefied gas tank liquid
The phase mouth of pipe is connected with finished pot pump discharge, and is increased between the liquefied gas tank gas phase mouth of pipe and the liquefied gas tank liquid phase mouth of pipe
Nitrogen pipeline and tail gas absorption pipeline, comprise the following steps that：
A, when the normal fill of liquefied gas, open the liquefied gas tank gas phase mouth of pipe valve that is connected with groove tank car and liquefied gas
Body tank liquid phase mouth of pipe valve, opens finished pot pump discharge valve turn on pump, opens and finished pot gas phase mouth of pipe valve；Simultaneously close off tail
Aspiration pipe valve, nitrogen pipeline valve and shutoff valve, will the pan tank beginning that is connected with groove tank car it is normal canned；Work as filling
Dress terminates rear termination of pumping, closes the liquid phase valve of liquefied gas tank, simultaneously closes off finished pot gas phase mouth of pipe valve and finished pot pump
Outlet valve, then open tail gas absorption pipe valve and shutoff valve make after filling apparatus pressure release with groove tank car liquefied gas tank point
From；
When release is needed to groove tank car liquefied gas tank after B, fill, close finished pot gas phase mouth of pipe valve, nitrogen pipeline
Valve and finished pot pump discharge valve make groove tank car be connected with filling apparatus, open liquefied gas tank gas phase mouth of pipe valve and liquefaction
Gas tank liquid phase mouth of pipe valve opens tail gas absorption pipe valve and shutoff valve simultaneously, and the liquid phase valve for opening groove tank car will
Liquid gas in tank pass through tail gas absorption pipe valve blowdown pressure letdown；
C, when groove tank car needs to use inert gas replacement, close finished pot gas phase mouth of pipe valve, finished pot pump discharge valve
Door and shutoff valve are opened liquefied gas tank gas phase mouth of pipe valve, liquefied gas tank liquid phase mouth of pipe valve valve, tail gas simultaneously and are inhaled
Pipe valve and nitrogen pipeline valve are received, nitrogen is entered into groove tank car by liquid phase pipeline, groove tank car passes through liquefied gas tank gas
Groove tank car nitrogen is entered line replacement by phase mouth of pipe valve and tail gas absorption pipe valve.
Preferably, nitrogen regulator is provided with nitrogen pipeline, nitrogen will be passed through into liquid phase after nitrogen pressure regulation to 6barg
Pipeline enters groove tank car.
Preferably, pressure inductor, the pressure inductor and numeric display are provided with tail gas absorption pipe valve
Connection, is provided with anti-reversing clutch in tail gas absorption pipe valve.
In sum, the present invention has advantages below：Displacement is convenient, facilitates the release of groove tank vehicle exhaust and groove tank car is entered
Line replacement is cleaned, without potential safety hazard.
Description of the drawings
Fig. 1 is the connecting line figure of the present invention；
Label in figure：1- liquefied gas tank gas phase mouth of pipe valves, 2- liquefied gas tank liquid phase mouth of pipe valves, 3- finished pot gas
Phase mouth of pipe valve, 4- tail gas absorption pipe valves, 5- nitrogen pipeline valves, 6- finished pot pump discharge valves, 7- shutoff valves.
Specific embodiment
In order to deepen the understanding of the present invention, below in conjunction with embodiment and accompanying drawing, the invention will be further described, should
Embodiment is only used for the explanation present invention, does not constitute limiting the scope of the present invention.
A kind of liquefied gas filling method of replacing as shown in Figure 1, liquefied gas tank is connected with finished pot, wherein liquid
Change the gas tank gas phase mouth of pipe to be connected with the finished pot gas phase mouth of pipe, the liquefied gas tank liquid phase mouth of pipe is connected with finished pot pump discharge
Connect, and increase nitrogen pipeline and tail gas absorption pipeline between the liquefied gas tank gas phase mouth of pipe and the liquefied gas tank liquid phase mouth of pipe,
Comprise the following steps that：When the normal fill of liquefied gas, the liquefied gas tank gas phase mouth of pipe valve 1 and liquid being connected with groove tank car is opened
Change gas tank liquid phase mouth of pipe valve 2, open 6 turn on pump of finished pot pump discharge valve, open and finished pot gas phase mouth of pipe valve 3；Together
When close tail gas absorption pipe valve 4, nitrogen pipeline valve 5 and shutoff valve 7, will pan tank be connected with groove tank car and just starting
It is often canned；Termination of pumping after fill terminates, closes the liquid phase valve of liquefied gas tank, simultaneously closes off finished pot gas phase mouth of pipe valve
3 and finished pot pump discharge valve 6, then open tail gas absorption pipe valve 4 and shutoff valve 7 make after filling apparatus pressure release with groove tank
Car liquefied gas tank is separated；When needing release to groove tank car liquefied gas tank after fill, closing finished pot gas phase mouth of pipe valve 3,
Nitrogen pipeline valve 5 and finished pot pump discharge valve 6 make groove tank car be connected with filling apparatus, open the liquefied gas tank gas phase mouth of pipe
Valve 1 and liquefied gas tank liquid phase mouth of pipe valve 2 open tail gas absorption pipe valve 4 and shutoff valve 7 simultaneously, open groove tank car
Liquid phase valve by the liquid gas in tank by 4 blowdown pressure letdown of tail gas absorption pipe valve, in tail gas absorption pipe valve 4
Pressure inductor is provided with, the pressure inductor is connected with numeric display, in tail gas absorption pipe valve 4, is provided with anti-reverse dress
Put；When groove tank car needs to use inert gas replacement, close finished pot gas phase mouth of pipe valve 3, finished pot pump discharge valve 6 and cut
Only valve 7 opens liquefied gas tank gas phase mouth of pipe valve 1, liquefied gas tank liquid phase mouth of pipe valve valve 2, tail gas absorption pipe simultaneously
Nitrogen is entered groove tank car by liquid phase pipeline by road valve 4 and nitrogen pipeline valve 5, and groove tank car passes through liquefied gas tank gas phase
Groove tank car nitrogen is entered line replacement by mouth of pipe valve 1 and tail gas absorption pipe valve 4.Nitrogen pressure regulation dress is provided with nitrogen pipeline
Put, nitrogen will be entered into groove tank car by liquid phase pipeline after nitrogen pressure regulation to 6barg.
Claims (3)
1. a kind of liquefied gas filling method of replacing, it is characterised in that liquefied gas tank is connected with finished pot, wherein liquefying
The gas tank gas phase mouth of pipe is connected with the finished pot gas phase mouth of pipe, and the liquefied gas tank liquid phase mouth of pipe is connected with finished pot pump discharge,
And increase nitrogen pipeline and tail gas absorption pipeline between the liquefied gas tank gas phase mouth of pipe and the liquefied gas tank liquid phase mouth of pipe, specifically
Step is as follows：
A, when the normal fill of liquefied gas, open the liquefied gas tank gas phase mouth of pipe valve that is connected with groove tank car（1）And liquefied gas
Body tank liquid phase mouth of pipe valve（2）, open finished pot pump discharge valve（6）Turn on pump, opens and finished pot gas phase mouth of pipe valve（3）；
Simultaneously close off tail gas absorption pipe valve（4）, nitrogen pipeline valve（5）And shutoff valve（7）, will finished pot and groove tank car phase
Company starts normal canned；Termination of pumping after fill terminates, closes the liquid phase valve of liquefied gas tank, simultaneously closes off finished pot gas phase
Mouth of pipe valve（3）With finished pot pump discharge valve（6）, then open tail gas absorption pipe valve（4）And shutoff valve（7）Make fill
Separate with groove tank car liquefied gas tank after device pressure release；
When release is needed to groove tank car liquefied gas tank after B, fill, close finished pot gas phase mouth of pipe valve（3）, nitrogen pipeline valve
Door（5）With finished pot pump discharge valve（6）Make groove tank car be connected with filling apparatus, open liquefied gas tank gas phase mouth of pipe valve
（1）With liquefied gas tank liquid phase mouth of pipe valve（2）Tail gas absorption pipe valve is opened simultaneously（4）And shutoff valve（7）, open groove
Liquid gas in tank are passed through tail gas absorption pipe valve by the liquid phase valve of tank car（4）Blowdown pressure letdown；
C, when groove tank car needs to use inert gas replacement, close finished pot gas phase mouth of pipe valve（3）, finished pot pump discharge valve
（6）And shutoff valve（7）Liquefied gas tank gas phase mouth of pipe valve is opened simultaneously（1）, liquefied gas tank liquid phase mouth of pipe valve（2）、
Tail gas absorption pipe valve（4）With nitrogen pipeline valve（5）, nitrogen is entered into groove tank car by liquid phase pipeline, groove tank car passes through
Liquefied gas tank gas phase mouth of pipe valve（1）With tail gas absorption pipe valve（4）Groove tank car nitrogen is entered into line replacement.
2. liquefied gas filling method of replacing according to claim 1, it is characterised in that：Nitrogen is provided with the nitrogen pipeline
Nitrogen will be entered groove tank car by liquid phase pipeline after nitrogen pressure regulation to 6barg by regulator.
3. liquefied gas filling method of replacing according to claim 1, it is characterised in that：The tail gas absorption pipe valve
（4）Pressure inductor is provided with inside, the pressure inductor is connected with numeric display, tail gas absorption pipe valve（4）Inside it is provided with
Anti-reversing clutch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510811429.3A CN105299443B (en) | 2015-11-23 | 2015-11-23 | Liquefied gas filling and replacement method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510811429.3A CN105299443B (en) | 2015-11-23 | 2015-11-23 | Liquefied gas filling and replacement method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105299443A CN105299443A (en) | 2016-02-03 |
| CN105299443B true CN105299443B (en) | 2017-04-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510811429.3A Active CN105299443B (en) | 2015-11-23 | 2015-11-23 | Liquefied gas filling and replacement method |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106368655B (en) * | 2016-10-27 | 2019-04-30 | 中国科学院力学研究所 | A kind of cryogenic high pressure liquid CO2Displacement apparatus and its application method |
| CN108506733A (en) * | 2018-05-10 | 2018-09-07 | 江苏南大光电材料股份有限公司 | Material bulking device |
| CN109353983A (en) * | 2018-10-18 | 2019-02-19 | 江阴江化微电子材料股份有限公司 | A kind of Mobile automatic charging action of chemicals tank car |
| CN111156405B (en) * | 2018-11-07 | 2021-04-20 | 北汽福田汽车股份有限公司 | Hydrogen filling equipment |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1027394C (en) * | 1990-12-21 | 1995-01-11 | 苏香瑞 | Storaging and filling system of liquefied petroleum gas |
| JP5106979B2 (en) * | 2007-10-15 | 2012-12-26 | 日本エア・リキード株式会社 | Gas supply system |
| CN202132693U (en) * | 2011-07-29 | 2012-02-01 | 广东顺德浦项钢板有限公司 | Novel liquid ammonia filling system |
| CN202265399U (en) * | 2011-09-30 | 2012-06-06 | 河南尚宇新能源股份有限公司 | Trichlorosilane product loading equipment |
| CN103775827A (en) * | 2013-11-04 | 2014-05-07 | 山东国塑慧科高分子材料有限公司 | Liquid chlorine delivery system for producing chlorinated polyethylene |
| CN204717342U (en) * | 2015-06-02 | 2015-10-21 | 石家庄市海森化工有限公司 | A kind of closed loop oxidative ethane unloading unit |
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| CN105299443A (en) | 2016-02-03 |
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