CN213146068U - Storage tank for storing natural gas - Google Patents
Storage tank for storing natural gas Download PDFInfo
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- CN213146068U CN213146068U CN202022193361.6U CN202022193361U CN213146068U CN 213146068 U CN213146068 U CN 213146068U CN 202022193361 U CN202022193361 U CN 202022193361U CN 213146068 U CN213146068 U CN 213146068U
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Abstract
The utility model relates to the technical field of natural gas storage, in particular to a storage tank for storing natural gas; the technical scheme is as follows: the bottom of the cavity of the tank body is matched with a piston so as to divide the cavity in the tank body into a storage cavity and a slow release cavity which are distributed up and down; a compression spring is arranged in the slow release cavity and used for driving the piston to reset; the slow release cavity is also provided with an air leakage hole, and the air leakage hole is used for discharging the inner gas of the slow release cavity. The utility model discloses a liquefied natural gas promotes piston compression spring, is heated or the jar body receives when assaulting the internal liquefied natural gas inflation of messenger jar when the jar body, perhaps the jar body receives when assaulting the volume and reduce, can remove the cavity that the increase jar body is used for holding liquefied natural gas through the piston, and then avoid jar body explosion, consequently the utility model has the characteristics of safe and reliable. When the liquefied natural gas contracts, the compression spring drives the piston to reset, so that the liquefied natural gas is prevented from being gasified to influence the storage of the natural gas.
Description
Technical Field
The utility model relates to a natural gas stores technical field, concretely relates to holding vessel for storing natural gas.
Background
Gaseous natural gas is inconvenient to transport and store due to its low density, and is converted into liquid natural gas after being cooled to-162 ℃, and the volume of natural gas with the same weight is reduced to 1/625, so that the gaseous natural gas needs to be liquefied for transport and storage. The liquefied natural gas is stored in a storage tank, the storage tank is easily influenced by the environmental temperature, if the environmental temperature is too high, the liquefied natural gas is heated and expanded, the potential safety hazard of explosion of the storage tank exists, and the safety of the storage tank and the personal safety of personnel are endangered; if the pressure in the storage tank is too low, the liquefied natural gas is easily vaporized, and the loss during storage is likely to occur. In addition, if the storage tank receives the impact collision, the internal energy of the liquefied natural gas is increased or the volume of the storage tank is reduced, so that the pressure in the storage tank is increased easily, and the potential safety hazard of explosion of the storage tank exists. Therefore, the existing liquefied natural gas storage tank has poor environmental adaptability.
SUMMERY OF THE UTILITY MODEL
To the poor technical problem of above-mentioned current liquefied natural gas holding vessel environmental suitability, the utility model provides a storage tank for storing natural gas can adapt to the change of the liquefied natural gas volume that different ambient temperature brought to avoid the potential safety hazard that liquefied natural gas storage in-process pressure increase brought, have safe and reliable's characteristics.
The utility model discloses a following technical scheme realizes:
a storage tank for storing natural gas comprises a tank body, wherein a piston is matched with the bottom of a cavity of the tank body; the piston divides the inner cavity of the tank body into a storage cavity and a slow release cavity which are distributed up and down; a compression spring is arranged in the slow release cavity and used for driving the piston to reset; the slow release cavity is also provided with an air leakage hole, and the air leakage hole is used for discharging the inner gas of the slow release cavity.
The utility model discloses fill the liquefied natural gas of rated pressure in for jar body when using to promote piston compression spring, the gas between piston and jar body bottom cavity is then discharged from disappointing the hole, can ensure that the piston can be promoted. When the tank body is heated or impacted to enable the liquid natural gas in the tank body to expand, or when the tank body is impacted to reduce the volume, the liquid natural gas in the tank body can push the piston to continue to compress the spring, so that the cavity of the tank body for containing the liquid natural gas is enlarged through the movement of the piston, and the explosion of the tank body is avoided. Therefore, the utility model has the characteristics of safe and reliable. When the environmental temperature of the tank body is restored to the normal storage range, the liquefied natural gas contracts, and the compression spring drives the piston to reset at the moment, so that the liquefied natural gas is under the rated filling pressure, and the liquefied natural gas is prevented from being gasified to influence the storage of the natural gas.
Specifically, the air leakage hole is positioned on the side wall of the tank body.
Preferably, the distance between the bottom ends of the cavities in the air leakage pore tank body is greater than L, and L is the sum of the length of the compression spring when the compression spring is completely compressed and the axial length of the piston. When the compression spring can not be compressed continuously in an extreme condition, the liquefied natural gas can be discharged through the air leakage hole, the pressure of the liquefied natural gas in the tank body is reduced, and the effect of the safety valve is achieved, so that the tank body can not explode in the extreme condition, and the personal safety of personnel is ensured.
Preferably, the side wall of the piston is at least provided with two sealing rings at intervals in a sleeved mode, so that the sealing performance of the piston is guaranteed, and the waste of resources caused by the fact that normally liquid natural gas is discharged from the air leakage port is avoided.
Preferably, the material of the sealing ring is fluorosilicone rubber so as to ensure that the sealing ring has sufficient weather resistance and corrosion resistance.
In order to reduce the influence of the piston on the volume of the liquefied natural gas stored in the tank body, the middle part of the piston is provided with a pit, and the opening of the pit is opposite to the upper end of the tank body.
Preferably, the pits are cylindrical pits, so that the processing and production are convenient.
In order to ensure the structural strength of the piston, a plurality of convex ribs are uniformly distributed on the circumference of the side wall of the concave pit.
The utility model has the advantages that:
1. the liquid natural gas filled with rated pressure pushes the piston to compress the compression spring, when the tank body is heated or impacted to expand the liquid natural gas in the tank body, or when the tank body is impacted to reduce the volume, the liquid natural gas in the tank body can push the piston to continue to compress the spring, so that the cavity of the tank body for containing the liquid natural gas is enlarged through the movement of the piston, and the explosion of the tank body is further avoided;
2. when the environmental temperature of the tank body is restored to the normal storage range, the liquefied natural gas contracts, and the compression spring drives the piston to reset at the moment, so that the liquefied natural gas is under the rated filling pressure, and the liquefied natural gas is prevented from being gasified to influence the storage of the natural gas;
3. the gas release hole is positioned on the side wall of the tank body, the distance between the bottom end of the cavity in the tank body of the gas release pore passage is greater than L, and L is the sum of the length of the compression spring when the compression spring is completely compressed and the axial length of the piston, so that when the compression spring cannot be continuously compressed under extreme conditions, the liquid natural gas can be discharged through the gas release hole, the pressure of the liquid natural gas in the tank body is reduced, the effect of a safety valve is achieved, the tank body cannot explode under the extreme conditions, and the personal safety of personnel is ensured;
4. the middle part of the piston is provided with a pit, the opening of the pit is right opposite to the upper end of the tank body, and the influence of the piston on the volume of the tank body for storing the liquefied natural gas can be reduced.
Drawings
The accompanying drawings, which are included to provide a further understanding of the embodiments of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the principles of the invention. In the drawings:
fig. 1 is a schematic structural diagram of the present invention.
Reference numbers and corresponding part names in the drawings:
1-tank body, 11-storage cavity, 12-slow release cavity, 2-piston, 3-compression spring, 4-air release hole, 5-sealing ring, 6-pit and 7-rib.
Detailed Description
To make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to the following examples and drawings, and the exemplary embodiments and descriptions thereof of the present invention are only used for explaining the present invention, and are not intended as limitations of the present invention.
Examples
The utility model provides a holding vessel for storing natural gas, includes jar body 1, 1 cavity bottom adaptation of jar body has piston 2, piston 2 is divided into storage chamber 11 and the slowly-releasing chamber 12 that distribute from top to bottom with 1 inside cavity of jar body, storage chamber 11 is used for storing liquefied natural gas. And a compression spring 3 is arranged in the slow release cavity 12, and the compression spring 3 is used for driving the piston 2 to reset. The slow release cavity 12 is further provided with a gas release hole 4, and the gas release hole 4 is used for discharging the gas in the slow release cavity 12.
Specifically, the air release hole 4 is located on the side wall of the tank body 1.
Preferably, 4 distances of the inside cavity bottom of jar body 1 of disappointing hole are greater than L, L is length and 2 axial length sums of piston when compression spring 3 fully compresses to make compression spring 3 when fully compressing, disappointing hole 4 can communicate with the cavity of jar body 1 upper end and carry out the pressure release.
Preferably, at least two sealing rings 5 are arranged on the side wall of the piston 2 at intervals to ensure the sealing performance of the piston 2 to prevent the liquid natural gas from being discharged from the air leakage port under the normal condition to cause resource waste.
Preferably, the material of the seal ring 5 is fluorosilicone rubber, so as to ensure sufficient weather resistance and corrosion resistance of the seal ring 5.
In order to reduce the influence of the piston 2 on the volume of the tank body 1 for storing the liquefied natural gas, a pit 6 is arranged in the middle of the piston 2, and the opening of the pit 6 is opposite to the upper end of the tank body 1.
Preferably, the pit 6 is a cylindrical pit 6, so that the processing and production are convenient.
In order to ensure the structural strength of the piston 2, a plurality of convex ribs 7 are uniformly distributed on the circumference of the side wall of the pit 6.
The working principle of the embodiment is as follows:
when in use, the tank body 1 is filled with the liquefied natural gas with rated pressure to push the piston 2 to compress the compression spring 3, and the gas between the piston 2 and the cavity at the bottom of the tank body 1 (the slow release cavity 12) is discharged from the air release hole 4, so that the piston 2 can be ensured to be pushed.
When the tank body 1 is heated or the tank body 1 is impacted to expand the liquefied natural gas in the tank body 1, or the tank body 1 is impacted to reduce the volume, the liquefied natural gas in the tank body 1 can push the piston 2 to continue to compress the spring 3, so that the piston 2 moves to enlarge the cavity of the tank body 1 for containing the liquefied natural gas, and further the tank body 1 is prevented from being exploded.
When the environmental temperature of the tank body 1 is restored to the normal storage range, the liquefied natural gas contracts, and the compression spring 3 drives the piston 2 to reset at the moment, so that the liquefied natural gas is under the rated filling pressure, and the liquefied natural gas is prevented from being gasified to influence the storage of the natural gas.
When the compression spring 3 can not be compressed continuously in an extreme condition, the liquefied natural gas can be discharged through the air leakage hole 4, the pressure of the liquefied natural gas in the tank body 1 is reduced, and the effect of a safety valve is achieved, so that the tank body 1 can not explode in the extreme condition, and the personal safety of personnel is ensured.
The above-mentioned embodiments, further detailed description of the objects, technical solutions and advantages of the present invention, it should be understood that the above description is only the embodiments of the present invention, and is not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (8)
1. A storage tank for storing natural gas comprises a tank body (1), and is characterized in that a piston (2) is adapted to the bottom of a cavity of the tank body (1), and the piston (2) divides the cavity inside the tank body (1) into a storage cavity (11) and a slow release cavity (12) which are distributed up and down;
a compression spring (3) is arranged in the slow release cavity (12), and the compression spring (3) is used for driving the piston (2) to reset;
the slow release cavity (12) is further provided with an air leakage hole (4), and the air leakage hole (4) is used for discharging the inner gas of the slow release cavity (12).
2. Storage tank for storing natural gas according to claim 1, characterized in that the air-escape aperture (4) is located in the side wall of the tank (1).
3. Storage tank for storing natural gas according to claim 2, characterized in that the distance of the air-escape hole (4) from the bottom end of the internal cavity of the tank (1) is greater than L, which is the sum of the length of the compression spring (3) when it is fully compressed and the axial length of the piston (2).
4. Storage tank for storing natural gas according to claim 1, characterized in that the side wall of the piston (2) is fitted at least at intervals with two sealing rings (5).
5. The storage tank for storing natural gas according to claim 4, wherein the sealing ring (5) is made of fluorosilicone rubber.
6. Storage tank for storing natural gas according to any of claims 1-5, characterized in that the piston (2) is provided with a pit (6) in the middle, the pit (6) opening towards the upper end of the tank (1).
7. Storage tank for storing natural gas according to claim 6, characterized in that the pits (6) are cylindrical pits (6).
8. Storage tank for storing natural gas according to claim 7, characterized in that the side walls of the pits (6) are circumferentially and uniformly provided with a plurality of ridges (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022193361.6U CN213146068U (en) | 2020-09-29 | 2020-09-29 | Storage tank for storing natural gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022193361.6U CN213146068U (en) | 2020-09-29 | 2020-09-29 | Storage tank for storing natural gas |
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| Publication Number | Publication Date |
|---|---|
| CN213146068U true CN213146068U (en) | 2021-05-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022193361.6U Active CN213146068U (en) | 2020-09-29 | 2020-09-29 | Storage tank for storing natural gas |
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| CN (1) | CN213146068U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114134526A (en) * | 2021-12-01 | 2022-03-04 | 山东开圣氢能科技有限公司 | Hydrogen production and storage device with energy supplied by photovoltaic |
| CN115013716A (en) * | 2022-08-08 | 2022-09-06 | 烟台蓬莱区天阳化工有限公司 | Low-temperature carbon dioxide transportation tank |
| CN115285536A (en) * | 2022-09-29 | 2022-11-04 | 菏泽远东强亚新材料有限公司 | Fuel oil transportation storage tank |
| CN115388318A (en) * | 2022-08-25 | 2022-11-25 | 国网浙江省电力有限公司双创中心 | Low-temperature high-pressure hydrogen storage tank |
-
2020
- 2020-09-29 CN CN202022193361.6U patent/CN213146068U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114134526A (en) * | 2021-12-01 | 2022-03-04 | 山东开圣氢能科技有限公司 | Hydrogen production and storage device with energy supplied by photovoltaic |
| CN115013716A (en) * | 2022-08-08 | 2022-09-06 | 烟台蓬莱区天阳化工有限公司 | Low-temperature carbon dioxide transportation tank |
| CN115388318A (en) * | 2022-08-25 | 2022-11-25 | 国网浙江省电力有限公司双创中心 | Low-temperature high-pressure hydrogen storage tank |
| CN115388318B (en) * | 2022-08-25 | 2024-02-23 | 国网浙江省电力有限公司双创中心 | Low-temperature high-pressure hydrogen storage tank |
| CN115285536A (en) * | 2022-09-29 | 2022-11-04 | 菏泽远东强亚新材料有限公司 | Fuel oil transportation storage tank |
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