CN214306473U - Evaporated gas recovery device of liquefied gas storage tank - Google Patents
Evaporated gas recovery device of liquefied gas storage tank Download PDFInfo
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- CN214306473U CN214306473U CN202120128919.4U CN202120128919U CN214306473U CN 214306473 U CN214306473 U CN 214306473U CN 202120128919 U CN202120128919 U CN 202120128919U CN 214306473 U CN214306473 U CN 214306473U
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- gas recovery
- storage tank
- boil
- liquefied gas
- evaporation
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Abstract
The utility model provides a liquefied gas storage tank boil-off gas recovery unit, includes liquefied gas storage tank, still includes the boil-off gas recovery jar, liquefied gas storage tank top pass through the air duct and be connected with the boil-off gas recovery jar, boil-off gas recovery tank top is equipped with the inlet tube, is equipped with the gate valve of intaking on the inlet tube, is equipped with the warning pipe on the inlet tube, is equipped with the overflow gate valve on the warning pipe, boil-off gas recovery jar one side is equipped with the outlet duct. This is novel adopts above-mentioned structure, can retrieve the gasification part that the liquefied gas storage in-process produced, reaches the purpose that improves liquefied gas utilization ratio, reduces the atmosphere pollution.
Description
Technical Field
The utility model relates to a liquefied gas stores technical field, and specifically is a liquefied gas storage tank boil-off gas recovery unit.
Background
At present, in the process of producing industrial gas and civil gas at home and abroad, liquefied gas needs to be stored and is stored in a storage tank such as a pressure container, the ambient temperature is higher than the temperature of the liquefied gas in the storage tank, the liquefied gas in the storage tank is evaporated due to reasons such as heat conduction, the pressure in the storage tank is increased due to the evaporated gas, and the evaporated gas is usually discharged into the atmosphere through an evaporation valve (a pressure reducing valve) in order to reduce the pressure in the storage tank; therefore, it is necessary to design a device for recovering the storage tank boil-off gas to recover the boil-off gas, so as to achieve the purposes of improving the utilization rate of the liquefied gas and reducing the air pollution.
Disclosure of Invention
The utility model aims to solve the technical problem that a liquefied gas storage tank boil-off gas recovery unit is provided, can retrieve the gasification part that produces in the liquefied gas storage process, reach and improve liquefied gas utilization ratio, reduce the purpose of air pollution.
In order to solve the technical problem, the utility model discloses the technical scheme who adopts is: the utility model provides a liquefied gas storage tank boil-off gas recovery unit, includes liquefied gas storage tank, still includes the boil-off gas recovery jar, liquefied gas storage tank top pass through the air duct and be connected with the boil-off gas recovery jar, boil-off gas recovery tank top is equipped with the inlet tube, is equipped with the gate valve of intaking on the inlet tube, is equipped with the warning pipe on the inlet tube, is equipped with the overflow gate valve on the warning pipe, boil-off gas recovery jar one side is equipped with the outlet duct.
In the preferred scheme, liquefied gas storage tank bottom be equipped with first drain port, be equipped with first access hole on the liquefied gas storage tank lateral wall, be equipped with drain pipe and feed liquor pipe on the liquefied gas storage tank lateral wall.
In the preferred scheme, liquefied gas storage tank top be equipped with the evaporation valve, the pipe connection that the evaporation valve is located is on the gas accumulation cover bottom, keeps away from the gas duct one end connection of evaporating gaseous recovery jar on the gas accumulation cover top.
In a preferred scheme, the lower end of the water inlet pipe extends to the position, close to the bottom of the evaporation gas recovery tank, in the evaporation gas recovery tank.
In the preferred scheme, the top of the evaporation gas recovery tank is provided with a pressure reducing valve, the side wall of the evaporation gas recovery tank is provided with a second access hole, and the bottom of the evaporation gas recovery tank is provided with a second sewage draining outlet.
In the preferred scheme, a water level monitoring device is further arranged on the side wall of the evaporation gas recovery tank and is arranged close to the bottom of the evaporation gas recovery tank.
The utility model provides a liquefied gas storage tank evaporation gas recovery unit through adopting above-mentioned structure, has realized the recovery purpose of produced gas part in the liquefied gas storage process, has replaced the mode of current direct emission, has reached and has reduced the liquefied gas loss amount of volatilizing, has reduced the pollution to the environment, has improved gas utilization.
Drawings
The invention will be further explained with reference to the following figures and examples:
fig. 1 is a schematic view of the overall structure of the present invention.
In the figure: the device comprises a first sewage draining port 1, a liquefied gas storage tank 2, a first access hole 3, a liquid outlet pipe 4, liquefied gas 5 in the storage tank, an evaporation valve 6, a gas accumulation cover 7, a gas guide pipe 8, a liquid inlet pipe 9, an overflow pipe 10, an overflow gate valve 11, a water inlet pipe 12, a water inlet gate valve 13, a pressure reducing valve 14, recovered evaporation gas 15, a gas outlet pipe 16, filling water 17, a second access hole 18, an evaporation gas recovery tank 19, a second sewage draining port 20 and a water level monitoring device 21.
Detailed Description
As shown in fig. 1, a liquefied gas storage tank evaporation gas recovery device, including liquefied gas storage tank 2, still include evaporation gas recovery tank 19, liquefied gas storage tank 2 top pass through the air duct 8 and be connected with evaporation gas recovery tank 19, evaporation gas recovery tank 19 top is equipped with inlet tube 12, is equipped with into water gate valve 13 on the inlet tube 12, is equipped with overflow pipe 10 on the inlet tube 12, is equipped with overflow gate valve 11 on the overflow pipe 10, and evaporation gas recovery tank 19 one side is equipped with outlet duct 16.
In the preferred scheme, 2 bottoms of liquefied gas storage tank be equipped with first drain 1, be equipped with first access hole 3 on 2 lateral walls of liquefied gas storage tank, be equipped with drain pipe 4 and feed liquor pipe 9 on 2 lateral walls of liquefied gas storage tank.
In the preferred scheme, the top of the liquefied gas storage tank 2 is provided with an evaporation valve 6, a pipeline where the evaporation valve 6 is located is connected to the bottom of the gas accumulation cover 7, and one end of the gas guide pipe 8 far away from the evaporated gas recovery tank 19 is connected to the top of the gas accumulation cover 7.
In a preferred embodiment, the lower end of the water inlet pipe 12 extends to a position inside the boil-off gas recovery tank 19 near the bottom of the boil-off gas recovery tank 19.
In the preferred scheme, the top of the evaporation gas recovery tank 19 is provided with a pressure reducing valve 14, the side wall of the evaporation gas recovery tank 19 is provided with a second manhole 18, and the bottom of the evaporation gas recovery tank 19 is provided with a second sewage draining outlet 20.
In a preferable scheme, a water level monitoring device 21 is further arranged on the side wall of the evaporation gas recovery tank 19, and the water level monitoring device 21 is arranged close to the bottom of the evaporation gas recovery tank 19.
The novel principle is as follows:
as shown in fig. 1, an evaporation valve 6 is provided on the top of a liquefied gas storage tank 2, an evaporation valve 6 is covered by an evaporation cover 7, the inside and outside of the evaporation cover are isolated, the evaporation gas is introduced into an evaporation gas recovery tank 19 through a gas duct 8, and the introduced recovered evaporation gas 15 is discharged from an overflow pipe 10 by filling water 17 (a water inlet gate valve 13 is opened to replenish water into the evaporation gas recovery tank 19 through a water inlet pipe 12) which is previously replenished into the evaporation gas recovery tank 19 by gas pressure in the process of continuous introduction, wherein the filling water 17 in the evaporation gas recovery tank 19 is less and the recovered gas 15 is more and more, and the overflow gate valve 11 is closed until no water flows out from the overflow pipe 10; when the filling water 17 is nearly exhausted, the evaporation gas 15 recovered in the evaporation gas recovery tank 19 can be pumped out for use through the gas outlet pipe 16, in the process, the water inlet gate valve 13 is opened, the overflow gate valve 11 is closed, and in the continuous pumping process, the water inlet pipe 12 is enabled to supplement water into the evaporation gas recovery tank 19, so that the pressure in the evaporation gas recovery tank 19 is kept stable.
When the recovered evaporation gas 15 is insoluble in water, the water inlet pipe 12 directly inputs clean water, if the recovered gas is soluble in water, the filling water 17 is changed into other organic solvents, and the recovered evaporation gas 15 is ensured not to be dissolved in the liquid and discharged.
Claims (6)
1. The utility model provides a liquefied gas storage tank evaporation gas recovery unit, includes liquefied gas storage tank (2), its characterized in that: still include boil-off gas recovery tank (19), liquefied gas storage tank (2) top pass through air duct (8) and be connected with boil-off gas recovery tank (19), boil-off gas recovery tank (19) top is equipped with inlet tube (12), is equipped with into water gate valve (13) on inlet tube (12), is equipped with overflow pipe (10) on inlet tube (12), is equipped with overflow gate valve (11) on overflow pipe (10), and boil-off gas recovery tank (19) one side is equipped with outlet duct (16).
2. The boil-off gas recovery device of a liquefied gas storage tank as claimed in claim 1, wherein: liquefied gas storage tank (2) bottom be equipped with first drain hole (1), be equipped with first access hole (3) on liquefied gas storage tank (2) lateral wall, be equipped with drain pipe (4) and feed liquor pipe (9) on liquefied gas storage tank (2) lateral wall.
3. The boil-off gas recovery device of a liquefied gas storage tank as claimed in claim 1, wherein: the top of the liquefied gas storage tank (2) is provided with an evaporation valve (6), the pipeline where the evaporation valve (6) is arranged is connected to the bottom of the gas accumulation cover (7), and one end of the gas guide pipe (8) far away from the evaporated gas recovery tank (19) is connected to the top of the gas accumulation cover (7).
4. The boil-off gas recovery device of a liquefied gas storage tank as claimed in claim 1, wherein: the lower end of the water inlet pipe (12) extends to the position, close to the bottom of the evaporation gas recovery tank (19), in the evaporation gas recovery tank (19).
5. The boil-off gas recovery device of a liquefied gas storage tank as claimed in claim 1, wherein: the top of the evaporation gas recovery tank (19) is provided with a pressure reducing valve (14), the side wall of the evaporation gas recovery tank (19) is provided with a second access hole (18), and the bottom of the evaporation gas recovery tank (19) is provided with a second sewage draining outlet (20).
6. The boil-off gas recovery device of a liquefied gas storage tank as claimed in claim 1, wherein: the side wall of the evaporation gas recovery tank (19) is also provided with a water level monitoring device (21), and the water level monitoring device (21) is arranged close to the bottom of the evaporation gas recovery tank (19).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120128919.4U CN214306473U (en) | 2021-01-18 | 2021-01-18 | Evaporated gas recovery device of liquefied gas storage tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120128919.4U CN214306473U (en) | 2021-01-18 | 2021-01-18 | Evaporated gas recovery device of liquefied gas storage tank |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214306473U true CN214306473U (en) | 2021-09-28 |
Family
ID=77825698
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120128919.4U Active CN214306473U (en) | 2021-01-18 | 2021-01-18 | Evaporated gas recovery device of liquefied gas storage tank |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214306473U (en) |
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2021
- 2021-01-18 CN CN202120128919.4U patent/CN214306473U/en active Active
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| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20221101 Address after: 443002 # 74-5, Qiaohu Second Road, Xiling District, Yichang City, Hubei Province Patentee after: Yichang Tiantian Electric Co.,Ltd. Address before: 443002 No. 19-207, qiaohu 1st Road, Xiling District, Yichang City, Hubei Province Patentee before: Luan Changzhen |