CN209180646U - A kind of liquefied natural gas storage tanks - Google Patents
A kind of liquefied natural gas storage tanks Download PDFInfo
- Publication number
- CN209180646U CN209180646U CN201822070838.4U CN201822070838U CN209180646U CN 209180646 U CN209180646 U CN 209180646U CN 201822070838 U CN201822070838 U CN 201822070838U CN 209180646 U CN209180646 U CN 209180646U
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- China
- Prior art keywords
- tank body
- natural gas
- alarm
- flow valve
- pressure gauge
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Abstract
The utility model belongs to chemical equipment technical field, discloses a kind of liquefied natural gas storage tanks, including tank body, the tank body is connected with air inlet pipe and an air outlet pipe, the inside of tank body is equipped with pressure gauge, and tank body is externally connected to alarm, and the pressure gauge is electrically connected alarm, the air inlet pipe and an air outlet pipe is connected separately with a flow valve, it is connected between pressure gauge and flow valve by conversion hysteria relay, when the flow valve is open, pressure gauge power-off, when flow valve is closed, pressure gauge is powered and works.The utility model passes through setting pressure gauge, when tank body leaks, it can be detected in time, facilitate maintenance personal's on-call maintenance, also pass through setting alarm, when the pressure of tank interior changes, by the alarm of alarm, the intracorporal pressure information of tank can be sent to operator in time.
Description
Technical field
The utility model belongs to chemical equipment technical field, and in particular to a kind of liquefied natural gas storage tanks.
Background technique
Natural gas is the general designation for being present in the mixed gas in subsurface rock reservoir based on hydrocarbon, than weighing about 0.65,
It is lighter than air, there is colourless, tasteless, nontoxic characteristic.
Natural gas main component alkane, wherein methane accounts for the overwhelming majority, separately has a small amount of ethane, propane and butane, furthermore
Generally there are hydrogen sulfide, carbon dioxide, nitrogen and aqueous vapor and a small amount of carbon monoxide and micro rare gas, such as helium and argon.Naturally
Gas is before being sent to end user, to help leak detection, also adds smell to natural gas with mercaptan, thiophane etc..
Natural gas is not soluble in water, and density is 0.7174kg/Nm3 [2], and relative density (water) is about 0.45 (liquefaction) burning point
(DEG C) is 650, and explosion limit (V%) is 5-15.At standard conditions, methane exists to butane with gaseous state, more than pentane
For liquid.Methane is most short and most light hydrocarbon molecule.
Organic sulfur compound and hydrogen sulfide (H S) are common impurity, all necessary in the case where most of utilization natural gases
It removes in advance.The technical term of natural gas English more than sulfur-containing impurities describes as " sour (sour) ".
Every cube of combustion heat value of natural gas is 8000 kilocalories to 8500 kilocalories.Per kilogram liquefied gas combustion heat value is 11000
Kilocalorie.The specific gravity of gaseous liquefied gas is 2.5 kilograms/cubic metre.Every cube of liquefied gas combustion heat value is 25200 kilocalories.Every bottle of liquid
Change gas and weigh 14.5 kilograms, amounts to 159500 kilocalorie of combustion heat value, be equivalent to the combustion heat value of 20 cubic natural gas.
Natural gas has become indispensable in modern society due to its unique property and higher economic value
A kind of energy, be to be stored using natural gas tank to it under normal conditions, but since natural gas belongs to inflammable gas, simultaneously
There is no special taste, therefore is not easy to be therefore easily perceived by humans when natural gas leaks yet.
Currently, the storage of liquified natural gas tank is primarily present following problems:
1, liquefied natural gas can not be found in time in leakage, be easy to cause the wasting of resources, or even explode.
2, when fire occurring around liquified natural gas tank, with the upper body of temperature, liquified natural gas tank at any time all can be right
The personal safety of the surrounding masses damages.
Utility model content
The utility model aim is to provide a kind of liquefied natural gas storage tanks, by the automatic detection of pressure gauge, so that
Tank body can be detected in time when leaking, economic loss and life injury caused by preventing because of On Lng Leakage.
In order to solve the above problems existing in the present technology, the technology employed by the present utility model is
A kind of liquefied natural gas storage tanks, including tank body, the tank body are connected with air inlet pipe and an air outlet pipe, the inside of tank body
Equipped with pressure gauge, tank body is externally connected to alarm, and the pressure gauge is electrically connected alarm, the air inlet pipe and an air outlet pipe point
It is not connected with a flow valve, is connected between pressure gauge and flow valve by conversion hysteria relay, when the flow valve is open, pressure
Meter power-off, when flow valve is closed, pressure gauge is powered and works.
Further, the pressure gauge includes first pressure meter and second pressure meter, the first pressure meter, second pressure
Meter is connected with alarm by series circuit.
Further, the first pressure meter is connected to the inside of tank body and is arranged close to escape pipe, and first pressure meter is logical
Cross the flow valve that conversion hysteria relay is connected in escape pipe.
Further, the second pressure meter is connected to the inside of tank body and is arranged close to air inlet pipe, and second pressure meter is logical
Cross the flow valve that conversion hysteria relay is connected in air inlet pipe.
Further, the tank body includes the hollow cavity between outer housing, inner housing and outer housing and inner housing, described
It is connected between outer housing and inner housing by multiple fixed blocks.
Further, the outer housing is stainless steel tank body, and the inner housing is thermally conductive tank body.
Further, water pipe is equipped in the hollow cavity, the water pipe is wound in inner housing, and the both ends of water pipe pass through respectively
Water outlet and water inlet are connected to outside tank body.
Further, the tank body is internally connected with filter screen, and the escape pipe and air inlet pipe be respectively arranged on filter screen
Two sides.
Further, the filter screen includes the first filter screen and the second filter screen, and first filter screen is set to second
Filter screen is close to the side of air inlet pipe.
Further, the tank body is externally connected to the support frame for being used to support tank body, and support frame as described above includes support
Ring and multiple supporting legs, described to support ring set in the outside of tank body and be fixedly connected with tank body, multiple supporting legs are all connected with
In support ring.
Further, there are six the supporting leg is set, six supporting legs are centrosymmetric centered on the axis of support ring
Distribution.
Further, the lower part of the tank body is equipped with cleaning pipe, and the cleaning pipe is connected with solenoid valve.
Further, the alarm is combined aural and visual alarm.
The utility model has the following beneficial effects:
(1) the utility model can be detected by the way that pressure gauge is arranged when tank body leaks in time, facilitate dimension
Repair personnel's on-call maintenance.
(2) the utility model passes through the report of alarm when the pressure of tank interior changes by the way that alarm is arranged
It is alert, the intracorporal pressure information of tank can be sent to operator in time.
(3) the utility model connects pressure gauge and flow valve by conversion hysteria relay, so that flow valve and pressure gauge
When one of work, another be in off-position, when flow valve opens progress input and output gas, pressure gauge without
Work will not trigger alarm even if pressure generates variation in tank body at this time.
(4) the utility model is by connecting first pressure meter, second pressure meter and alarm, only when two are flowed
When measuring valve whole closing, just need to detect the intracorporal pressure of tank.
(5) tank design is bilayer by the utility model, and hollow cavity is arranged between two layers of tank body, when outer layer by
After impact, it can reduce impact suffered by inner housing, prevent tank body from leaking.
(6) water pipe is arranged in the utility model in hollow cavity, when ambient enviroment overheat, for the pressure for preventing tank interior
It is excessive, by the water flowing into water pipe, is cooled down using recirculated water to tank interior, improve the safety of tank body.
(7) filter screen is arranged in the inside of tank body in the utility model, is filtered to natural gas, guarantees the burning of natural gas
Efficiency.
(8) the utility model by setting cleaning pipe, tank body after a period of use, open solenoid valve, pass through cleaning
Pipe clears up tank interior, improves the service life of tank body.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the schematic diagram of internal structure of the utility model.
In figure: 1- tank body；2- escape pipe；3- air inlet pipe；4- flow valve；5- support ring；6- supporting leg；7- water outlet；8-
Cleaning pipe；9- water pipe；11- outer housing；12- hollow cavity；13- inner housing；14- fixed block；15- first pressure meter；16- second is pressed
Power meter；17- solenoid valve；The second filter screen of 18-；The first filter screen of 19-；20- alarm.
Specific embodiment
With reference to the accompanying drawing and specific embodiment is further elaborated the utility model.
It is in the description of the present invention, it should be noted that term " center ", "upper", "lower", "left", "right", " perpendicular
Directly ", the orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" is to be based on the orientation or positional relationship shown in the drawings, and is only
For ease of description the utility model and simplify description, rather than the device or element of indication or suggestion meaning must have it is specific
Orientation, be constructed and operated in a specific orientation, therefore should not be understood as limiting the present invention.In addition, term " the
One ", " second ", " third " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance.
Specific embodiment of the present utility model is described in detail below in conjunction with attached drawing.It should be understood that herein
Described specific embodiment is only used for describing and explaining the present invention, and is not intended to limit the utility model.
Embodiment 1:
As shown in Figure 1, a kind of liquefied natural gas storage tanks, including tank body 1, the tank body 1 are connected with air inlet pipe 3 and outlet
Pipe 2, the inside of tank body 1 are equipped with pressure gauge, and tank body 1 is externally connected to alarm 20, and the pressure gauge is electrically connected alarm 20,
The air inlet pipe 3 and escape pipe 2 are connected separately with a flow valve 4, pass through conversion hysteria relay between pressure gauge and flow valve 4
Connection, when flow valve 4 is opened, pressure gauge power-off, when flow valve 4 is closed, pressure gauge is powered and works.
The utility model can be detected by the way that pressure gauge is arranged when tank body 1 leaks in time, facilitate maintenance
Personnel's on-call maintenance.
The utility model when the pressure inside tank body 1 changes, passes through alarm 20 by setting alarm 20
Alarm, can be sent in time operator for the pressure information in tank body 20.
Embodiment 2:
As illustrated in fig. 1 and 2, a kind of liquefied natural gas storage tanks, including tank body 1, the tank body 1 are connected with 3 He of air inlet pipe
The inside of escape pipe 2, tank body 1 is equipped with pressure gauge, and tank body 1 is externally connected to alarm 20, and the pressure gauge is electrically connected taking alarm
Device 20, the air inlet pipe 3 and escape pipe 2 are connected separately with a flow valve 4, pass through conversion hysteria between pressure gauge and flow valve 4
Relay connection, when flow valve 4 is opened, pressure gauge power-off, when flow valve 4 is closed, pressure gauge is powered and works.
The tank body 1 includes the hollow cavity 12 between outer housing 11, inner housing 13 and outer housing 11 and inner housing 13, institute
It states and is connected between outer housing 11 and inner housing 13 by multiple fixed blocks 14.
The outer housing 11 is stainless steel tank body, and the inner housing 13 is thermally conductive tank body.
The tank body 1 is internally connected with filter screen, and the escape pipe 2 and air inlet pipe 3 are respectively arranged on the two sides of filter screen.
The pressure gauge includes first pressure meter 15 and second pressure meter 16, the first pressure meter 15, second pressure meter
16 are connected with alarm 20 by series circuit.
The first pressure meter 15 is connected to the inside of tank body 1 and is arranged close to escape pipe 2, and first pressure meter 15 is by turning
Relay of remodeling is connected to the flow valve 4 in escape pipe 2.
The second pressure meter 16 is connected to the inside of tank body 1 and is arranged close to air inlet pipe 3, and second pressure meter 16 is by turning
Relay of remodeling is connected to the flow valve 4 in air inlet pipe 3.
The tank body 1 is externally connected to the support frame for being used to support tank body 1, and support frame as described above includes support ring 5 and more
A supporting leg 6,5 sets of the support ring tank body 1 outside and be fixedly connected with tank body 1, multiple supporting legs 6 are all connected to
Support ring 5.
There are six the supporting leg 6 is set, six supporting legs 6 are centrosymmetric distribution centered on the axis of support ring 5.
The alarm 20 is combined aural and visual alarm.
The utility model can be detected by the way that pressure gauge is arranged when tank body 1 leaks in time, facilitate maintenance
Personnel's on-call maintenance.
The utility model when the pressure inside tank body 1 changes, passes through alarm 20 by setting alarm 20
Alarm, can be sent in time operator for the pressure information in tank body 20.
The utility model connects pressure gauge and flow valve 4 by conversion hysteria relay so that flow valve 4 and pressure gauge its
In a job when, another is in off-position, flow valve 4 open carry out input and output gas when, pressure gauge without
Work will not trigger alarm 20 even if pressure generates variation in tank body 1 at this time.
The utility model is by connecting first pressure meter 15, second pressure meter 16 and alarm 20, only when two
When a flow valve 4 is all closed, just need to detect the pressure in tank body 1.
Tank body 1 is designed as bilayer by the utility model, and hollow cavity 12 is arranged between two layers of tank body 1, works as outer housing
After 11 are impacted, impact suffered by inner housing 13 can reduce, prevent tank body 1 from leaking.
Embodiment 3:
As illustrated in fig. 1 and 2, a kind of liquefied natural gas storage tanks, including tank body 1, the tank body 1 are connected with 3 He of air inlet pipe
The inside of escape pipe 2, tank body 1 is equipped with pressure gauge, and tank body 1 is externally connected to alarm 20, and the pressure gauge is electrically connected taking alarm
Device 20, the air inlet pipe 3 and escape pipe 2 are connected separately with a flow valve 4, pass through conversion hysteria between pressure gauge and flow valve 4
Relay connection, when flow valve 4 is opened, pressure gauge power-off, when flow valve 4 is closed, pressure gauge is powered and works.
The pressure gauge includes first pressure meter 15 and second pressure meter 16, the first pressure meter 15, second pressure meter
16 are connected with alarm 20 by series circuit.
The first pressure meter 15 is connected to the inside of tank body 1 and is arranged close to escape pipe 2, and first pressure meter 15 is by turning
Relay of remodeling is connected to the flow valve 4 in escape pipe 2.
The second pressure meter 16 is connected to the inside of tank body 1 and is arranged close to air inlet pipe 3, and second pressure meter 16 is by turning
Relay of remodeling is connected to the flow valve 4 in air inlet pipe 3.
The tank body 1 includes the hollow cavity 12 between outer housing 11, inner housing 13 and outer housing 11 and inner housing 13, institute
It states and is connected between outer housing 11 and inner housing 13 by multiple fixed blocks 14.
The outer housing 11 is stainless steel tank body, and the inner housing 13 is thermally conductive tank body.
It is equipped with water pipe 9 in the hollow cavity 12, the water pipe 9 is wound in inner housing 13, and the both ends of water pipe 9 pass through out respectively
The mouth of a river 7 and water inlet are connected to outside tank body 1.
The tank body 1 is internally connected with filter screen, and the escape pipe 2 and air inlet pipe 3 are respectively arranged on the two sides of filter screen.
The filter screen includes the first filter screen 19 and the second filter screen 18, and first filter screen 19 is set to the second filtering
Net 18 is close to the side of air inlet pipe 3.
The tank body 1 is externally connected to the support frame for being used to support tank body 1, and support frame as described above includes support ring 5 and more
A supporting leg 6,5 sets of the support ring tank body 1 outside and be fixedly connected with tank body 1, multiple supporting legs 6 are all connected to
Support ring 5.
There are six the supporting leg 6 is set, six supporting legs 6 are centrosymmetric distribution centered on the axis of support ring 5.
The lower part of the tank body 1 is equipped with cleaning pipe 8, and the cleaning pipe 8 is connected with solenoid valve 17.
The alarm 20 is combined aural and visual alarm.
The utility model can be detected by the way that pressure gauge is arranged when tank body 1 leaks in time, facilitate maintenance
Personnel's on-call maintenance.
The utility model when the pressure inside tank body 1 changes, passes through alarm 20 by setting alarm 20
Alarm, can be sent in time operator for the pressure information in tank body 20.
The utility model connects pressure gauge and flow valve 4 by conversion hysteria relay so that flow valve 4 and pressure gauge its
In a job when, another is in off-position, flow valve 4 open carry out input and output gas when, pressure gauge without
Work will not trigger alarm 20 even if pressure generates variation in tank body 1 at this time.
The utility model is by connecting first pressure meter 15, second pressure meter 16 and alarm 20, only when two
When a flow valve 4 is all closed, just need to detect the pressure in tank body 1.
Tank body 1 is designed as bilayer by the utility model, and hollow cavity 12 is arranged between two layers of tank body 1, works as outer housing
After 11 are impacted, impact suffered by inner housing 13 can reduce, prevent tank body 1 from leaking.
Water pipe 9 is arranged in the utility model in hollow cavity 12, when ambient enviroment overheat, to prevent the pressure inside tank body 1
Power is excessive, improves the safety of tank body 1 using recirculated water to cooling down inside tank body 1 by the water flowing into water pipe 9.
Filter screen is arranged in the inside of tank body 1 in the utility model, is filtered to natural gas, guarantees the quality of natural gas,
Improve the efficiency of combustion of natural gas.
The utility model by setting cleaning pipe 8, tank body 1 after a period of use, open solenoid valve 17, pass through cleaning
Pipe 8 improves the service life of tank body 1 to clearing up inside tank body 1.
The device working principle first opens the flow valve 4 of air inlet pipe 3, at this time when using the liquefied natural gas storage tanks
Second pressure meter 16 powers off, and the natural gas for needing to store then is passed through into tank body 1, the stream of air inlet pipe 3 is closed after the completion of inflation
Valve 4 is measured, first pressure meter 15 and second pressure meter 16 are powered at this time, and two pressure gauges are connected with alarm 20, when the
When one pressure gauge 15 or second pressure meter 16 detect that the pressure inside tank body 1 changes, pressure gauge issues electricity to alarm 20
Signal, alarm 20 issue acousto-optic and alarm, and testing staff is reminded to detect and repair tank body 1, natural when needing to use
When gas, the flow valve 4 of escape pipe 2 is opened, first pressure meter 15 powers off at this time, and then tank body 1 conveys natural gas to outside, completes
The storage and conveying of entire liquefied natural gas, ambient enviroment when the temperature is excessively high, water flowing in Xiang Shuiguan 9 passes through recirculated water pair
Inner housing 13 cools down, and prevents from causing 1 internal pressure of tank body excessive due to high temperature, in turn results in leakage.
The utility model is not limited to above-mentioned optional embodiment, anyone can obtain under the enlightenment of the utility model
Other various forms of products, however, making any variation in its shape or structure, all the utility model rights that falls into are wanted
The technical solution in confining spectrum is sought, is all fallen within the protection scope of the utility model.
Claims (10)
1. a kind of liquefied natural gas storage tanks, including tank body (1), the tank body (1) is connected with air inlet pipe (3) and escape pipe (2),
It is characterized by: the inside of tank body (1) is equipped with pressure gauge, tank body (1) is externally connected to alarm (20), the pressure gauge electricity
It connects alarm (20), the air inlet pipe (3) and escape pipe (2) are connected separately with a flow valve (4), pressure gauge and flow valve
(4) it is connected between by conversion hysteria relay, when flow valve (4) are opened, pressure gauge power-off, when flow valve (4) are closed, pressure
Power meter is powered and works.
2. a kind of liquefied natural gas storage tanks according to claim 1, it is characterised in that: the pressure gauge includes the first pressure
Power meter (15) and second pressure meter (16), the first pressure meter (15), second pressure meter (16) and alarm (20) pass through string
Join circuit connection；
The first pressure meter (15) is connected to the inside of tank body (1) and is arranged close to escape pipe (2), and first pressure meter (15) is logical
Cross the flow valve (4) that conversion hysteria relay is connected in escape pipe (2)；
The second pressure meter (16) is connected to the inside of tank body (1) and is arranged close to air inlet pipe (3), and second pressure meter (16) is logical
Cross the flow valve (4) that conversion hysteria relay is connected in air inlet pipe (3).
3. a kind of liquefied natural gas storage tanks according to claim 1, it is characterised in that: the tank body (1) includes shell
Hollow cavity (12) between body (11), inner housing (13) and outer housing (11) and inner housing (13), the outer housing (11) and
It is connected between inner housing (13) by multiple fixed blocks (14).
4. a kind of liquefied natural gas storage tanks according to claim 3, it is characterised in that: the outer housing (11) is stainless
Cylinder of steel body, the inner housing (13) are thermally conductive tank body.
5. a kind of liquefied natural gas storage tanks according to claim 4, it is characterised in that: be equipped in the hollow cavity (12)
Water pipe (9), the water pipe (9) are wound in inner housing (13), and the both ends of water pipe (9) pass through water outlet (7) respectively and water inlet connects
It is external to pass through tank body (1).
6. a kind of liquefied natural gas storage tanks according to claim 1, it is characterised in that: the inside of the tank body (1) connects
It is connected to filter screen, the escape pipe (2) and air inlet pipe (3) are respectively arranged on the two sides of filter screen.
7. a kind of liquefied natural gas storage tanks according to claim 6, it is characterised in that: the filter screen includes the first mistake
Strainer (19) and the second filter screen (18), first filter screen (19) are set to the second filter screen (18) close to air inlet pipe (3)
Side.
8. a kind of liquefied natural gas storage tanks according to claim 1, it is characterised in that: the outside of the tank body (1) connects
It is connected to the support frame for being used to support tank body (1), support frame as described above includes support ring (5) and multiple supporting legs (6), the support ring
(5) it covers the outside in tank body (1) and is fixedly connected with tank body (1), multiple supporting legs (6) are all connected to support ring (5).
9. a kind of liquefied natural gas storage tanks according to claim 1, it is characterised in that: the lower part of the tank body (1) is set
There is cleaning pipe (8), the cleaning pipe (8) is connected with solenoid valve (17).
10. a kind of liquefied natural gas storage tanks according to claim 2, it is characterised in that: the alarm (20) is sound
Light crossing-signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822070838.4U CN209180646U (en) | 2018-12-10 | 2018-12-10 | A kind of liquefied natural gas storage tanks |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822070838.4U CN209180646U (en) | 2018-12-10 | 2018-12-10 | A kind of liquefied natural gas storage tanks |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209180646U true CN209180646U (en) | 2019-07-30 |
Family
ID=67376540
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822070838.4U Expired - Fee Related CN209180646U (en) | 2018-12-10 | 2018-12-10 | A kind of liquefied natural gas storage tanks |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209180646U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110404480A (en) * | 2019-09-11 | 2019-11-05 | 湖北沃瑞尔重工有限责任公司 | A kind of chemical industry pressure-resistant apparatus |
| CN113294684A (en) * | 2021-06-07 | 2021-08-24 | 唐山市丰南区高氏工业气体有限公司 | Liquefied natural gas safety detection system |
-
2018
- 2018-12-10 CN CN201822070838.4U patent/CN209180646U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110404480A (en) * | 2019-09-11 | 2019-11-05 | 湖北沃瑞尔重工有限责任公司 | A kind of chemical industry pressure-resistant apparatus |
| CN113294684A (en) * | 2021-06-07 | 2021-08-24 | 唐山市丰南区高氏工业气体有限公司 | Liquefied natural gas safety detection system |
| CN113294684B (en) * | 2021-06-07 | 2022-06-24 | 唐山市丰南区高氏工业气体有限公司 | Liquefied natural gas safety inspection system |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190730 Termination date: 20211210 |
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| CF01 | Termination of patent right due to non-payment of annual fee |