CN114909596B - Gravity type gas storage structure convenient to construction - Google Patents

Gravity type gas storage structure convenient to construction Download PDF

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Publication number
CN114909596B
CN114909596B CN202210720874.9A CN202210720874A CN114909596B CN 114909596 B CN114909596 B CN 114909596B CN 202210720874 A CN202210720874 A CN 202210720874A CN 114909596 B CN114909596 B CN 114909596B
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China
Prior art keywords
plunger
conical
diameter
wall
gravity
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Active
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CN202210720874.9A
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Chinese (zh)
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CN114909596A (en
Inventor
文军
梅生伟
杨成龙
王月明
薛小代
张学林
李阳
赵瀚辰
卢强
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Tsinghua University
Xian Thermal Power Research Institute Co Ltd
Huaneng Group Technology Innovation Center Co Ltd
Original Assignee
Tsinghua University
Xian Thermal Power Research Institute Co Ltd
Huaneng Group Technology Innovation Center Co Ltd
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Priority to CN202210720874.9A priority Critical patent/CN114909596B/en
Publication of CN114909596A publication Critical patent/CN114909596A/en
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Publication of CN114909596B publication Critical patent/CN114909596B/en
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17BGAS-HOLDERS OF VARIABLE CAPACITY
    • F17B1/00Gas-holders of variable capacity
    • F17B1/02Details
    • F17B1/04Sealing devices for sliding parts
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17BGAS-HOLDERS OF VARIABLE CAPACITY
    • F17B1/00Gas-holders of variable capacity
    • F17B1/02Details
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/16Mechanical energy storage, e.g. flywheels or pressurised fluids
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E70/00Other energy conversion or management systems reducing GHG emissions
    • Y02E70/30Systems combining energy storage with energy generation of non-fossil origin

Abstract

The invention provides a gravity type gas storage structure convenient for construction, which comprises a vertical shaft and a gravity plunger, wherein a first limiting piece is arranged on the inner wall of the vertical shaft; the gravity plunger is movably inserted into the vertical shaft and comprises a second plunger and a first plunger arranged on the second plunger so as to limit and clamp the first plunger through a first limiting piece, so that the second plunger passes through the first limiting piece to move downwards to be separated from the first plunger; be connected with the seal membrane between second plunger outer wall and the shaft inner wall, the seal membrane setting is close to first plunger department on second plunger top, the second plunger, seal membrane and shaft are located and enclose into sealed gas storage chamber between the sealed membrane below space, in order to promote gravity plunger rebound through the pressure that changes in the gas storage chamber, when the construction, can hoist the second plunger to the shaft in the back of taking one's place, can directly be connected seal membrane and shaft, need not arrange the auxiliary shaft on the shaft next door in addition and carry out the installation of seal membrane, it is more convenient to be under construction.

Description

Gravity type gas storage structure convenient to construction
Technical Field
The invention relates to the technical field of gravity compressed air energy storage, in particular to a gravity type gas storage structure convenient to construct.
Background
The storage of compressed gas is of great significance for industrial production and daily life, such as natural gas used in thermal power plants, medical oxygen, compressed air energy storage and the like. In the aspect of gravity compressed air energy storage, generally through set up the gravity piece in the shaft, through seal membrane sealing connection between gravity piece and the shaft, form sealed gas storage chamber in the shaft that is located gravity piece below, the high-pressure gas's of being convenient for storage, the seal membrane generally sets up in the below of gravity piece, need arrange the auxiliary shaft at the shaft avris in the seal membrane installation, realizes the installation of seal membrane and shaft inner wall, and the work progress is complicated.
Disclosure of Invention
The present invention is directed to solving, at least in part, one of the technical problems in the related art.
Therefore, the invention aims to provide a gravity type gas storage structure convenient for construction, wherein a gravity plunger is divided into a first plunger and a second plunger which are separated from each other, during construction, the second plunger can be hoisted into a vertical shaft to be in place, then a sealing membrane can be directly connected with the vertical shaft, an auxiliary well is not required to be additionally arranged beside the vertical shaft for installing the sealing membrane, the construction is more convenient, meanwhile, the gravity plunger is divided into the first plunger and the second plunger, a first limiting piece is arranged on the side wall of the vertical shaft, the first plunger is clamped through the first limiting piece in the energy releasing process, the second plunger is still moved downwards after being separated from the first plunger, and when energy is stored, the gas pressure introduced into a gas storage cavity can be jacked up only by being larger than the gravity of the second plunger, so that the starting pressure required by the gas storage device at the beginning of inflation is reduced.
In order to achieve the above object, the present invention provides a gravity type gas storage structure convenient for construction, comprising:
the inner wall of the vertical shaft is provided with a first limiting piece;
the gravity plunger is movably inserted into the vertical shaft and comprises a second plunger and a first plunger arranged on the second plunger so as to limit and clamp the first plunger through the first limiting piece, and the second plunger passes through the first limiting piece to move downwards to be separated from the first plunger;
the second plunger outer wall with be connected with the seal membrane between the shaft inner wall, the seal membrane sets up the second plunger top is close to first plunger department, second plunger, seal membrane with the shaft is located enclose into sealed gas storage chamber between the sealed membrane lower space, in order to promote through changing pressure in the gas storage chamber gravity plunger rebound.
Furthermore, the inner wall of the shaft is further provided with a second limiting part, the second limiting part is located below the first limiting part, so that the second plunger is limited and clamped through the second limiting part, and a gap is formed between the bottom of the second plunger and the bottom of the shaft.
Furthermore, the sealing membrane is fixed on the inner wall of the vertical shaft and is positioned between the first limiting piece and the second limiting piece.
Furthermore, a plurality of smooth grooves which are vertically distributed are arranged on the periphery of the outer wall surface of the second plunger;
the seal membrane is established for the cover the annular tubular structure of second plunger outside, the shaft is located one section between first locating part and the second locating part is the drum structure, and the external diameter of seal membrane equals the internal diameter of drum structure, the seal membrane turns over the interior annular saddle face structure that forms with the inner ring after turning over upper portion to the book in the middle of, turns over the back and obtains in the side of the inner ring week that it is protruding to form the fold, the bottom of outer loop with shaft inner wall sealing connection, the bottom of inner ring with the outer wall sealing connection of second plunger, the fold arch with level and smooth groove laminating, the fold arch is fixed level and smooth groove department.
Furthermore, the annular cylindrical structure of the sealing membrane is a cylindrical surface structure with the upper diameter and the lower diameter being equal to each other, and the circumferential perimeter of the gravity plunger at the smooth groove is equal to the circumferential perimeter of the outer wall of the sealing membrane, so that the fold protrusions can be attached to the smooth groove.
Furthermore, a first tapered hole is formed in the middle of the first limiting member, and a small opening end of the first tapered hole is located below a large opening end of the first tapered hole;
the diameter of the second plunger is smaller than the minor end inner diameter of the first tapered bore such that the second plunger moves downwardly through the first tapered bore;
the diameter of the first plunger is larger than the inner diameter of the small end of the first conical hole, so that the first plunger is limited and clamped through the first conical hole.
Furthermore, the bottom end of the first plunger is provided with a first conical body structure, and the diameter of the large head end of the first conical body structure is larger than the inner diameter of the small end of the first conical hole, so that the first conical body structure is limited and clamped through the first conical hole;
the slope of the first tapered hole is equal to the slope of the first tapered structure.
Further, a second tapered hole is formed in the middle of the second limiting part, and a small-opening end of the second tapered hole is located below a large-opening end of the second tapered hole;
the diameter of the second plunger is larger than the inner diameter of the small end of the second conical hole, so that the second plunger is limited and clamped through the second conical hole.
Furthermore, the bottom end of the second plunger is provided with a second conical structure, the diameter of the large head end of the second conical structure is larger than the inner diameter of the small end of the second conical hole, so that the second conical structure is limited and clamped through the second conical hole;
the slope of the second taper hole is equal to the slope of the second taper structure.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The foregoing and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 is a schematic structural diagram of a gravity type gas storage structure convenient for construction according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a shaft according to another embodiment of the present invention;
FIG. 3 is a schematic view of a second plunger of the present invention;
FIG. 4 is a partial schematic view of the second plunger of the present invention after being connected to a sealing membrane.
In the figure, 1, a shaft; 11. a cylindrical structure; 2. a first limit piece; 21. a first tapered bore; 3. a first plunger; 31. a first cone structure; 4. a second plunger; 41. a second taper structure; 42. smoothing the groove; 5. sealing the film; 51. an outer ring; 52. an inner ring; 6. a gas storage cavity; 7. a second limiting member; 71. a second tapered bore.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention. On the contrary, the embodiments of the invention include all changes, modifications and equivalents coming within the spirit and terms of the claims appended hereto.
Fig. 1 is a schematic structural diagram of a gravity type gas storage structure convenient for construction according to an embodiment of the present invention.
Referring to fig. 1 and 2, a gravity type gas storage structure convenient for construction comprises a vertical shaft 1 and a gravity plunger, wherein the gravity plunger is movably inserted in the vertical shaft 1 and can move up and down in the vertical shaft 1, the gravity plunger comprises a second plunger 4 and a first plunger 3 arranged on the second plunger 4, in order to store gas, a sealing film 5 is connected between the outer wall of the second plunger 4 and the inner wall of the vertical shaft 1, the sealing film 5 is arranged at the top end of the second plunger 4 close to the first plunger 3, during installation, the sealing film 5 is firstly connected with the top end of the second plunger 4, then the second plunger 4 is hoisted into the vertical shaft 1 to be in place, the sealing film 5 can be directly connected with the vertical shaft 1, and installation is convenient, so that during construction, an auxiliary well is not required to be additionally arranged beside the vertical shaft 1 for installing the sealing film 5, construction is more convenient, and meanwhile, the second plunger 4, the sealing film 5 and the vertical shaft 1 are positioned in a space below the vertical shaft 5 to form a sealed gas storage cavity 6, and the whole gravity plunger is pushed to move upwards by changing the pressure in the gas storage cavity 6.
In addition, a first limiting member 2 is arranged on the inner wall of the shaft 1, so as to limit and clamp the first plunger 3 through the first limiting member 2, so that the second plunger 4 moves downwards through the first limiting member 2 to be separated from the first plunger 3, that is, two completely separated bodies can be arranged between the first plunger 3 and the second plunger 4, when the first plunger 3 and the second plunger 4 move downwards together, the second plunger 4 can pass through the first limiting member 2 to continue moving downwards due to small diameter, and the first plunger 3 is blocked by the first limiting member 2 due to large diameter, so that the first plunger 3 and the second plunger are separated, the second plunger 4 is pushed to move upwards to the first plunger 3 by changing the pressure in the air storage cavity 6, the first plunger 3 is pushed to move upwards, the first plunger 3 and the second plunger 4 are separated by arranging the first limiting member 2, and the first plunger 3 is supported by the first limiting member 2, after the first plunger 3 moves to the lower part of the vertical shaft 1, when energy is stored, gas is introduced into the gas storage cavity 6, the second plunger 4 is pushed to move upwards by the gas pressure in the gas storage cavity 6, when the initial position is reached, the pressure acted by the gas in the gas storage cavity 6 can be jacked up by the second plunger 4 as long as the pressure exceeds the gravity of the second plunger 4, when the second plunger 4 jacks up and moves upwards, the second plunger 4 moves upwards to the joint with the first plunger 3, compressed gas is continuously introduced into the gas, when the gas pressure in the gas storage cavity 6 can exceed the sum of the gravity of the first plunger 3 and the second plunger 4, the whole gravity plunger can be jacked up and continuously moves upwards to a certain position, when the gravity plunger moves to the position of the first limiting part 2, the gravity plunger 4 passes through the first limiting part 2 and then continuously moves downwards, the first plunger 3 is blocked by the first limiting part 2, and the process is repeated to realize the gravity compressed air energy storage process.
In some embodiments, the inner wall of the shaft 1 is further provided with a second limiting member 7, the second limiting member 7 is located below the first limiting member 2, the second plunger 4 is limited and clamped by the second limiting member 7, a gap is formed between the bottom of the second plunger 4 and the bottom of the shaft 1, a certain space is reserved in the gas storage cavity 6, when energy is stored, gas is filled into the gas storage cavity 6, the pressure of the gas is larger than the gravity of the second plunger 4, the starting pressure is reduced, the gravity of each layer can be reduced by layering the gravity plungers, and the pressure effect of each layer of gravity plungers on the limiting members is further reduced.
In some embodiments, the sealing membrane 5 may be fixed on the inner wall of the shaft 1 between the first limiting member 2 and the second limiting member 7, so that when the first plunger 3 is clamped and fixed by the first limiting member 2 and the second plunger 4 is clamped and fixed by the second limiting member 7, the sealing membrane 5 is not squeezed, and the sealing membrane 5 is not damaged.
Referring to fig. 3 and 4, in some embodiments, in order to improve the safety in use of the sealing membrane 5, the outer wall surface peripheral side of the second plunger 4 is provided with a plurality of smooth grooves 42 distributed vertically, wherein the vertical direction coincides with the axial direction of the second plunger 4. The sealing membrane 5 is an annular cylindrical structure sleeved outside the second plunger 4, one section of the shaft 1 located between the first limiting part 2 and the second limiting part 7 is a cylindrical structure 11, the outer diameter of the sealing membrane 5 is equal to the inner diameter of the cylindrical structure 11, the sealing membrane 5 is folded inwards from the middle to form an annular saddle surface structure formed by connecting an outer ring 51 and an inner ring 52, a fold bulge is formed on the periphery side of the inner ring 52 obtained after folding, the top end of the outer ring 51 is connected with the top end of the inner ring 52, the bottom end of the outer ring 51 is hermetically connected with the inner wall of the cylindrical structure 11, the bottom end of the inner ring 52 is hermetically connected with the top of the outer wall of the second plunger 4, the fold bulge is attached to the smooth groove 42, through the arrangement, the sealing membrane 5 is allowed to be recessed in the smooth groove 42, so that the length of the annular outer wall of the second plunger 4 connected with the sealing membrane 5 is increased, the length of the sealing membrane 5 fixed on the periphery side of the second plunger 4 is increased, the outer ring 51 and the inner wall of the sealing membrane 5 of the shaft 5 are always kept well attached to the inner wall of the shaft 1 in the vertical moving process, the sealing membrane 5 can provide the service life of the sealing membrane 5 and the safety of the shaft 1, and the sealing membrane 5 can be offset the service life of the sealing membrane 5, and the sealing membrane 5 due to the service life of the sealing membrane 5.
In detail, because the inner ring 52 that the sealing membrane 5 formed after turning over is located the outer ring 51 inboard, the sealing membrane 5 is the tubular structure, the inner ring 52 after turning over is close to second plunger 4, because the external diameter of second plunger 4 is less, the inner ring 52 is for adapting to the annular space size, local folding of self can appear, form the fold arch, the fold arch is not met with second plunger 4 lateral wall, cause second plunger 4 and sealing membrane 5 to reduce at annular combination site, through set up a plurality of smooth grooves 42 that are vertical distribution in the week side of second plunger 4, make smooth groove 42 department can be arranged in to the fold arch, and then can ensure that the fold arch also can laminate with second plunger 4, make the area that sealing membrane 5 annular and second plunger 4 combine increase, support sealing membrane 5 fold arch through smooth groove 42 in the second plunger 4, can improve the support stability of sealing membrane 5.
In addition, the annular cylindrical structure of the sealing membrane 5 is a cylindrical surface structure with the upper diameter and the lower diameter, and the circumferential perimeter of the second plunger 4 at the smooth groove 42 is equal to the circumferential perimeter of the outer wall of the sealing membrane 5, so that the corrugated bulges can be attached to the smooth groove 42. That is, the smooth groove 42 on the circumferential side of the second plunger 4 may penetrate to the top surface of the second plunger 4, and after the smooth groove 42 is provided on the circumferential side of the second plunger 4, the circumferential length of the second plunger 4 in the circumferential direction of the smooth groove 42 is increased (when the smooth groove 42 penetrates to the top surface of the second plunger 4, the circumferential length of the second plunger 4 in the circumferential direction of the smooth groove 42 is the circumferential length of the side of the top surface of the second plunger 4, and the circumferential length of the outer wall of the sealing membrane 5 in the circumferential direction is the circumferential length of the end surface side of the annular cylindrical structure of the sealing membrane 5), and when the circumferential length of the second plunger 4 in the circumferential direction of the smooth groove 42 is controlled to be equal to the circumferential length of the outer wall of the sealing membrane 5, the portion of the inner ring 52 including the bulge in the circumferential direction can be attached to the groove bottom of the groove including the smooth groove 42 on the circumferential side of the second plunger 4, and the second plunger 4 can fully support the sealing membrane 5, thereby improving the safety, reliability, and the life of the sealing membrane 5.
It should be noted that there are various structures of the first stopper 2 that can perform the stopper fastening of the first plunger 3.
As a possible structure, the middle part of the first limiting member 2 is provided with a first tapered hole 21, the small end of the first tapered hole 21 is located below the large end of the first tapered hole 21, and the diameter of the second plunger 4 is smaller than the small end inner diameter of the first tapered hole 21, so that the second plunger 4 passes through the first tapered hole 21 to move downwards, and the diameter of the first plunger 3 is larger than the small end inner diameter of the first tapered hole 21, so that the first plunger 3 is limited and clamped through the first tapered hole 21, and the first plunger 3 cannot move downwards when moving to the first tapered hole 21.
In addition, the bottom end of the first plunger 3 is set as a first conical structure 31, the diameter of the large head end of the first conical structure 31 is greater than the inner diameter of the small end of the first conical hole 21, so as to limit and clamp the first conical structure 31 through the first conical hole 21, because the first plunger 3 is a cylindrical structure, the bottom end of the first plunger 3 can be directly processed into a cone shape, that is, the first conical structure 31 is the first conical structure 31, at this time, the first conical structure 31 and the first plunger 3 are an integrated connection structure, the diameter of the large head end of the first conical structure 31 can be equal to the diameter of the first plunger 3, and because the diameter of the large head end of the first conical structure 31 is greater than the inner diameter of the small end of the first conical hole 21, the first plunger 3 is blocked before moving to the small end of the first conical hole 21, and cannot move downward, and meanwhile, the axis of the first conical hole 21 is vertically arranged, that is, the axis direction of the first conical hole 21 is parallel to the gravity direction of the first plunger 3.
In some embodiments, the slope of the first tapered hole 21 is set to be equal to the slope of the first tapered structure 31, so that when the first plunger 3 moves to the lowest end for clamping, the outer conical surface of the first tapered structure 31 is attached to the inner conical surface of the first tapered hole 21, the conical surface is adopted for self-locking, the contact area is increased, the average load of the contact surface is reduced, and the reliability and the service life of the locking structure are enhanced.
It should be noted that the structure of the second limiting member 7 capable of limiting and fastening the second plunger 4 may be various.
As a possible structure, a second tapered hole 71 may be disposed in the middle of the second limiting member 7, a small end of the second tapered hole 71 is located below a large end of the second tapered hole 71, and the diameter of the second plunger 4 is greater than the small end inner diameter of the second tapered hole 71, so as to perform limiting and clamping on the second plunger 4 through the second tapered hole 71, so that the second plunger 4 cannot move downward when moving to the second tapered hole 71, and a certain air storage space is reserved for the air storage cavity 6.
In addition, the bottom end of the second plunger 4 is set as the second conical structure 41, the diameter of the large head end of the second conical structure 41 is larger than the inner diameter of the small end of the second conical hole 71, so as to perform limiting and clamping on the second conical structure 41 through the second conical hole 71, because the second plunger 4 is a cylindrical structure, the bottom end of the second plunger 4 can be directly processed into a conical shape, that is, the second conical structure 41 is also used as the second plunger 4, so that the second conical structure 41 and the second plunger 4 are integrally connected and fixed, the diameter of the large head end of the second conical structure 41 can be equal to the diameter of the second plunger 4, and because the diameter of the large head end of the second conical structure 41 is larger than the inner diameter of the small end of the second conical hole 71, the second plunger 4 is blocked before moving to the small end of the second conical hole 71, and cannot move downwards.
In some embodiments, the inclination of the second conical hole 71 may be set to be equal to the inclination of the second conical structure 41, and the axis of the second conical hole 71 is vertically arranged, that is, the axis direction of the second conical hole 71 is parallel to the gravity direction of the second plunger 4, so that when the second plunger 4 vertically moves downward to the fastening position, the external conical surface of the second conical structure 41 directly fits with the internal conical surface of the second conical hole 71, so as to achieve conical self-locking, increase the contact area, reduce the average load of the contact surface, and enhance the reliability and the service life of the locking structure.
It should be noted that the terms "first," "second," and the like in the description of the present invention are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. In addition, in the description of the present invention, "a plurality" means two or more unless otherwise specified.
Any process or method descriptions in flow charts or otherwise described herein may be understood as representing modules, segments, or portions of code which include one or more executable instructions for implementing specific logical functions or steps of the process, and alternate implementations are included within the scope of the preferred embodiment of the present invention in which functions may be executed out of order from that shown or discussed, including substantially concurrently or in reverse order, depending on the functionality involved, as would be understood by those reasonably skilled in the art of the present invention.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.

Claims (6)

1. The utility model provides a gravity type gas storage structure convenient to construction which characterized in that includes:
the inner wall of the vertical shaft is provided with a first limiting piece;
the gravity plunger is movably inserted into the vertical shaft and comprises a second plunger and a first plunger arranged on the second plunger so as to limit and clamp the first plunger through the first limiting piece, and the second plunger passes through the first limiting piece to move downwards to be separated from the first plunger;
a sealing membrane is connected between the outer wall of the second plunger and the inner wall of the vertical shaft, the sealing membrane is arranged at the top end of the second plunger and close to the first plunger, and a sealed air storage cavity is enclosed among the space below the sealing membrane of the second plunger, the sealing membrane and the vertical shaft so as to push the gravity plunger to move upwards by changing the pressure in the air storage cavity;
the inner wall of the vertical shaft is also provided with a second limiting piece, and the second limiting piece is positioned below the first limiting piece so as to limit and clamp the second plunger through the second limiting piece, so that a gap is formed between the bottom of the second plunger and the bottom of the vertical shaft;
the sealing membrane is fixed on the inner wall of the vertical shaft and positioned between the first limiting piece and the second limiting piece;
a first conical hole is formed in the middle of the first limiting piece, and a small opening end of the first conical hole is positioned below a large opening end of the first conical hole;
the diameter of the second plunger is smaller than the minor end inner diameter of the first tapered bore such that the second plunger moves downwardly through the first tapered bore;
the diameter of the first plunger is larger than the inner diameter of the small end of the first conical hole, so that the first plunger is limited and clamped through the first conical hole.
2. The gravity type gas storage structure convenient for construction as claimed in claim 1, wherein the second plunger is provided with a plurality of smooth grooves distributed vertically on the periphery of the outer wall surface;
the seal membrane is established for the cover the annular tubular structure of second plunger outside, the shaft is located one section between first locating part and the second locating part is the drum structure, and the external diameter of seal membrane equals the internal diameter of drum structure, the seal membrane turns over the interior annular saddle face structure that forms with the inner ring after turning over upper portion to the book in the middle of, turns over the back and obtains in the side of the inner ring week that it is protruding to form the fold, the bottom of outer loop with shaft inner wall sealing connection, the bottom of inner ring with the outer wall sealing connection of second plunger, the fold arch with level and smooth groove laminating, the fold arch is fixed level and smooth groove department.
3. The gas storage structure as claimed in claim 2 wherein said annular cylinder of said sealing membrane is a cylindrical cylinder with equal diameter, and said gravity plug has a circumferential perimeter at said smooth groove equal to the circumferential perimeter of the outer wall of said sealing membrane, so that said corrugated protrusion can fit into said smooth groove.
4. The gravity gas storage structure convenient for construction according to claim 1, wherein the bottom end of the first plunger is configured as a first conical body structure, and the diameter of the large head end of the first conical body structure is larger than the inner diameter of the small end of the first conical hole, so that the first conical body structure is limited and clamped through the first conical hole;
the slope of the first tapered hole is equal to the slope of the first tapered structure.
5. The gravity type gas storage structure convenient for construction as claimed in claim 1, wherein the second limiting member is provided with a second tapered hole in the middle, and the small end of the second tapered hole is located below the large end of the second tapered hole;
the diameter of the second plunger is larger than the inner diameter of the small end of the second conical hole, so that the second plunger is limited and clamped through the second conical hole.
6. The gravity type gas storage structure convenient for construction as claimed in claim 5, wherein the bottom end of the second plunger is provided with a second conical structure, the diameter of the large head end of the second conical structure is larger than the inner diameter of the small mouth end of the second conical hole, so as to perform limiting and clamping on the second conical structure through the second conical hole;
the slope of the second taper hole is equal to the slope of the second taper structure.
CN202210720874.9A 2022-06-23 2022-06-23 Gravity type gas storage structure convenient to construction Active CN114909596B (en)

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