CN109945068A - The gas-liquid separated overflow mechanism of LNG tank - Google Patents
The gas-liquid separated overflow mechanism of LNG tank Download PDFInfo
- Publication number
- CN109945068A CN109945068A CN201910240073.0A CN201910240073A CN109945068A CN 109945068 A CN109945068 A CN 109945068A CN 201910240073 A CN201910240073 A CN 201910240073A CN 109945068 A CN109945068 A CN 109945068A
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- China
- Prior art keywords
- shell
- tube
- eccentric reducer
- lng tank
- gas
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- 239000007788 liquid Substances 0.000 title claims abstract description 30
- 230000007246 mechanism Effects 0.000 title claims abstract description 24
- 230000008878 coupling Effects 0.000 claims abstract description 28
- 238000010168 coupling process Methods 0.000 claims abstract description 28
- 238000005859 coupling reaction Methods 0.000 claims abstract description 28
- 239000003638 chemical reducing agent Substances 0.000 claims description 25
- 238000004513 sizing Methods 0.000 claims description 23
- 238000001514 detection method Methods 0.000 abstract description 5
- 239000003949 liquefied natural gas Substances 0.000 description 21
- 239000007789 gas Substances 0.000 description 18
- 238000003795 desorption Methods 0.000 description 6
- 239000012141 concentrate Substances 0.000 description 3
- 238000011010 flushing procedure Methods 0.000 description 2
- 238000002309 gasification Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000005429 filling process Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
Landscapes
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
The present invention relates to a kind of LNG tank component, the specifically gas-liquid separated overflow mechanism of LNG tank.Its feature be include shell, outlet is arranged at the top of shell side, connector is arranged at the lower part of the other side, there is temperature transmitter on connector, it is connected between temperature transmitter and connector in fixing seal shape, temperature transmitter has horizontally disposed pipe sleeve, and casing is located in shell, and the height of casing is less than the height of outlet lower edge.There is the coupling tube for being connected with LNG tank at the top of the shell.The overflow mechanism can reach detection requirement, and structure is simpler.
Description
Technical field
The present invention relates to a kind of LNG tank components, and specifically LNG tank is overflow with gas-liquid separated
Flow device.
Background technique
LNG tank is the critical facility in LNG Storage, Transport.Liquefied natural gas fills in storage tank in order to prevent
Overload and jeopardize storage tank and process system safety, therefore overflow mechanism can be set, when overflow mechanism has monitored on storage tank
Cryogenic liquid outflow indicates to reach specified fullness rate, stops filling.
Currently, one kind is simple there are two types of the gas-liquid separated overflow mechanisms of the LNG tank used in industry
Formula.Since liquefaction weather device is in filling process, partially liq gasification is had.Gas and liquid cannot be distinguished in plain type overflow mechanism
Body, when in use, the frozen gas after gasification plain type overflow mechanism is impacted it is larger so that plain type overflow mechanism send out
The signal to make mistake, thus, plain type overflow mechanism is unable to satisfy detection requirement.Though another complexity formula overflow mechanism can reach
Detection requirement, however, structure is complicated for the overflow mechanism.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of gas-liquid separated overflow mechanisms of LNG tank, should
Overflow mechanism can reach detection requirement, and structure is simpler.
To solve the above problems, the following technical schemes are provided:
The characteristics of LNG tank of the invention gas-liquid separated overflow mechanism be include shell, the top of shell side
There is outlet, there is connector in the lower part of the other side, there is temperature transmitter on connector, close in fixation between temperature transmitter and connector
Shape connection is sealed, temperature transmitter has horizontally disposed pipe sleeve, and casing is located in shell, and the height of casing is less than outlet lower edge
Height.There is the coupling tube for being connected with LNG tank at the top of the shell.
Wherein, the shell includes horizontally disposed sizing tube, and one end of sizing tube is inclined to being connected to horizontally disposed first
Heart reduced pipe, the other end is to being connected to horizontally disposed second eccentric reducer.The coupling tube is located at the top of sizing tube.It is described
One end that first eccentric reducer is relatively large in diameter is connected with sizing tube, the top of first that lesser section of eccentric reducing pipe diameter
Along flushing with the upper edge of sizing tube, the oral area of first that lesser section of eccentric reducing pipe diameter is the outlet.It is described
One end that second eccentric reducer is relatively large in diameter is connected with sizing tube, second that lesser section of eccentric reducing pipe diameter it is following
Along flushing with the lower edge of sizing tube, the oral area of first that lesser section of eccentric reducing pipe diameter is the connector, far
Casing one end from temperature transmitter is extend into the first eccentric reducer.
The coupling tube is J-shaped pipe, and corresponding that section of coupling tube of the horizontal part of J-shaped is located at the shell above described sleeve pipe
It is interior, and corresponding coupling tube one end of horizontal part of J-shaped, towards the outlet, corresponding that section of coupling tube in the vertical portion of J-shaped passes through
Case top reaches outside shell, and connects between coupling tube and case top in seal shape.
The above scheme has the following advantages:
What it is due to the gas-liquid separated overflow mechanism of LNG tank of the invention includes shell, and the top of shell side has
There are connector in outlet, the lower part of the other side, there is temperature transmitter on connector, are in fixing seal between temperature transmitter and connector
Shape connection, temperature transmitter have horizontally disposed pipe sleeve, and casing is located in shell, and the height of casing is less than outlet lower edge
Highly, there is the coupling tube for being connected with LNG tank at the top of shell.In use, by the outlet of shell and liquefaction day
The gas phase pipe of right gas concentrates desorption tube to be connected, and coupling tube is connected with the overflow port of LNG tank.When filling, temperature
Transmitter is started to work, and the gas in storage tank is entered in shell by overflow port and coupling tube and entered by outlet at this time
The gas phase pipe of liquefied natural gas is concentrated in desorption tube.When fill reach specified fullness rate when, i.e., the liquid level in storage tank with
After overflow open height is consistent, the cryogenic liquid in storage tank is entered in shell by overflow port and coupling tube, since gas liquid is close
Degree is different, is affected by gravity, and liquid is separated with gas, and gas continues through the gas phase pipe or collection that outlet enters liquefied natural gas
In middle desorption tube, and liquid then contacts the temperature transmitter casing of lower section, and temperature transmitter is to issue the signal for stopping filling.It should
Overflow mechanism can realize gas-liquid separation, and temperature transmitter casing is located at outlet lower section, to greatly reduce frozen gas pair
The influence of temperature transmitter guarantees the capable of emitting correct signal of the overflow mechanism, to meet detection requirement, and structure letter
It is single.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of LNG tank of the invention with gas-liquid separated overflow mechanism.
Specific embodiment
Present invention will be described in further detail below with reference to the accompanying drawings.
As shown in Figure 1, the gas-liquid separated overflow mechanism of LNG tank of the invention includes shell, shell side
Top have outlet 7, connector is arranged at the lower part of the other side, there is temperature transmitter 6, temperature transmitter 6 and connector on connector
Between connected in fixing seal shape, temperature transmitter 6 has horizontally disposed pipe sleeve 5, and casing is located in shell, and the height of casing is small
In the height for exporting 7 lower edges.There is the coupling tube 3 for being connected with LNG tank at the top of the shell.
The shell includes horizontally disposed sizing tube 2, and one end of sizing tube 2 is eccentric different to being connected to horizontally disposed first
Diameter pipe 1, the other end is to being connected to horizontally disposed second eccentric reducer 4；The coupling tube 3 is located at the top of sizing tube 2.It is described
One end that first eccentric reducer 1 is relatively large in diameter is connected with sizing tube 2, that lesser section of 1 diameter of the first eccentric reducer
Upper edge is flushed with the upper edge of sizing tube 2, and the oral area of that lesser section of 1 diameter of the first eccentric reducer is the outlet
7.One end that second eccentric reducer 4 is relatively large in diameter is connected with sizing tube 2,4 diameter of the second eccentric reducer it is lesser that
One section of lower edge is flushed with the lower edge of sizing tube 2, and the oral area of that lesser section of 1 diameter of the first eccentric reducer is institute
Connector is stated, casing one end far from temperature transmitter 6 is extend into the first eccentric reducer 1.
The coupling tube 3 is J-shaped pipe, and corresponding that section of coupling tube 3 of the horizontal part of J-shaped is located at the shell above described sleeve pipe
It is interior, and corresponding 3 one end of coupling tube of horizontal part of J-shaped, towards the outlet 7, corresponding that section of coupling tube 3 in the vertical portion of J-shaped is worn
It crosses case top to reach outside shell, and is connected between coupling tube 3 and case top in seal shape.
The sizing tube 2, the first eccentric reducer 1 and the second eccentric reducer 4 are DN50 stainless-steel pipe, the mistake
Crossing pipe 3 is DN15 stainless steel tube.
Thermal resistance is included in the casing of the temperature transmitter 6.
In use, by the outlet 7 of shell and the gas phase pipe of liquefied natural gas or desorption tube is concentrated to be connected, by coupling tube 3 with
The overflow port of LNG tank is connected.When filling, temperature transmitter 6 is started to work, and the gas in storage tank is by overflowing at this time
Head piece and coupling tube 3 enter in shell and enter the gas phase pipe of liquefied natural gas by outlet 7 or concentrate in desorption tube.When
Fill when reaching specified fullness rate, i.e., the liquid level in storage tank it is consistent with overflow open height after, the cryogenic liquid in storage tank is logical
It crosses overflow port and coupling tube 3 enters in shell, since gas liquid density is different, be affected by gravity, liquid is separated with gas, gas
Body continues through outlet 7 and enters the gas phase pipe of liquefied natural gas or concentrate in desorption tube, and liquid then contacts the temperature of lower section
6 casing of transmitter, temperature transmitter 6 are to issue the signal for stopping filling.In addition, by sizing tube 2,1 and of the first eccentric reducer
The shell that second eccentric reducer 4 is constituted has the function of liquid collecting, when flow rate of liquid is too fast, fails first time Contact Temperature pick-up
When the casing of device 6, liquid also can be full of shell moment, and the casing of temperature transmitter 6 is in the lower part of shell, casing and cryogenic liquid
Also the signal for stopping filling can be issued after contact at once.
Claims (3)
1. the gas-liquid separated overflow mechanism of LNG tank, it is characterised in that including shell, the top of shell side has
It exports (7), there is connector in the lower part of the other side, has on connector temperature transmitter (6), between temperature transmitter (6) and connector
It is connected in fixing seal shape, temperature transmitter (6) has horizontally disposed pipe sleeve (5), and casing is located in shell, and the height of casing
Less than the height of outlet (7) lower edge；There is the coupling tube (3) for being connected with LNG tank at the top of the shell.
2. the gas-liquid separated overflow mechanism of LNG tank as described in claim 1, it is characterised in that the shell
Including horizontally disposed sizing tube (2), one end of sizing tube (2) is another to being connected to horizontally disposed first eccentric reducer (1)
End is to being connected to horizontally disposed second eccentric reducer (4)；The coupling tube (3) is located at the top of sizing tube (2)；Described first
One end that eccentric reducer (1) is relatively large in diameter is connected with sizing tube (2), that lesser section of the first eccentric reducer (1) diameter
Upper edge flushed with the upper edge of sizing tube (2), the oral area of that lesser section of the first eccentric reducer (1) diameter is institute
State outlet (7)；One end that second eccentric reducer (4) is relatively large in diameter is connected with sizing tube (2), the second eccentric reducer
(4) lower edge of that lesser section of diameter is flushed with the lower edge of sizing tube (2), and the first eccentric reducer (1) diameter is smaller
The oral area of that section be the connector, casing one end far from temperature transmitter (6) extend into the first eccentric reducer
(1) in.
3. the gas-liquid separated overflow mechanism of LNG tank as claimed in claim 1 or 2, it is characterised in that the mistake
Crossing pipe (3) is J-shaped pipe, and corresponding that section of coupling tube (3) of the horizontal part of J-shaped is located in the shell above described sleeve pipe, and J-shaped
The corresponding coupling tube of horizontal part (3) one end passes through shell towards the outlet (7), corresponding that section of coupling tube (3) in the vertical portion of J-shaped
It is reached outside shell at the top of body, and coupling tube (3) is connect between case top in seal shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910240073.0A CN109945068A (en) | 2019-03-29 | 2019-03-29 | The gas-liquid separated overflow mechanism of LNG tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910240073.0A CN109945068A (en) | 2019-03-29 | 2019-03-29 | The gas-liquid separated overflow mechanism of LNG tank |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109945068A true CN109945068A (en) | 2019-06-28 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910240073.0A Pending CN109945068A (en) | 2019-03-29 | 2019-03-29 | The gas-liquid separated overflow mechanism of LNG tank |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109945068A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110368753A (en) * | 2019-07-30 | 2019-10-25 | 无锡雷德环保设备有限公司 | A kind of abnormity high efficient horizontal steam isolating device |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3811269A1 (en) * | 1987-07-09 | 1988-09-15 | Gok Gmbh & Co Kg | Gas take-off valve for liquid-gas containers |
| CN204986398U (en) * | 2015-07-23 | 2016-01-20 | 张家港中集圣达因低温装备有限公司 | LNG storage tank |
| CN205048157U (en) * | 2015-09-08 | 2016-02-24 | 荆门宏图特种飞行器制造有限公司 | Liquefied natural gas tank |
| CN205690066U (en) * | 2016-06-17 | 2016-11-16 | 日照海达尔加气设备有限公司 | A kind of separator for liquefied natural gas aerating machine |
| CN206469058U (en) * | 2017-02-10 | 2017-09-05 | 佛山市汽车燃气有限公司 | Liquefied natural gas filling device |
| CN207830973U (en) * | 2018-01-12 | 2018-09-07 | 江苏深绿新能源科技有限公司 | A kind of vertical low temperature basin Anti-overflow device |
| CN209943994U (en) * | 2019-03-29 | 2020-01-14 | 无锡海核装备科技有限公司 | Gas-liquid separation type overflow device for liquefied natural gas storage tank |
-
2019
- 2019-03-29 CN CN201910240073.0A patent/CN109945068A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3811269A1 (en) * | 1987-07-09 | 1988-09-15 | Gok Gmbh & Co Kg | Gas take-off valve for liquid-gas containers |
| CN204986398U (en) * | 2015-07-23 | 2016-01-20 | 张家港中集圣达因低温装备有限公司 | LNG storage tank |
| CN205048157U (en) * | 2015-09-08 | 2016-02-24 | 荆门宏图特种飞行器制造有限公司 | Liquefied natural gas tank |
| CN205690066U (en) * | 2016-06-17 | 2016-11-16 | 日照海达尔加气设备有限公司 | A kind of separator for liquefied natural gas aerating machine |
| CN206469058U (en) * | 2017-02-10 | 2017-09-05 | 佛山市汽车燃气有限公司 | Liquefied natural gas filling device |
| CN207830973U (en) * | 2018-01-12 | 2018-09-07 | 江苏深绿新能源科技有限公司 | A kind of vertical low temperature basin Anti-overflow device |
| CN209943994U (en) * | 2019-03-29 | 2020-01-14 | 无锡海核装备科技有限公司 | Gas-liquid separation type overflow device for liquefied natural gas storage tank |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110368753A (en) * | 2019-07-30 | 2019-10-25 | 无锡雷德环保设备有限公司 | A kind of abnormity high efficient horizontal steam isolating device |
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