Two-section type rubber membrane sealing gas chamber

Abstract

The invention provides a two-section type rubber membrane sealing gas cabinet. The two-section type rubber membrane sealing gas cabinet comprises a cabinet body and cabinet side plates vertically arranged along the periphery of a cabinet bottom plate. The T-gear rack mechanism is characterized in that a T-gear rack is annularly arranged on the inner side of the cabinet side plate, and a T-gear rack is annularly arranged in the circumferential direction of the T-gear rack and movably connected with the top of the T-gear rack in the vertical direction; the piston mechanism is movably arranged on the inner side of the T-shaped blocking frame mechanism in a penetrating mode in the vertical direction, and the piston mechanism can move to abut against the top of the T-shaped blocking frame and drive the T-shaped blocking frame to move upwards to the top of the cabinet body. A first sealing structure of the sealing mechanism is telescopically connected between the outer side of the piston mechanism and the inner side of the bottom of the T-shaped blocking frame, and a second sealing structure of the sealing mechanism is telescopically connected between the outer side of the bottom of the T-shaped blocking frame and the inner side of the middle of the cabinet side plate; the piston mechanism, the T-shaped blocking frame mechanism and the sealing mechanism define the upper gas cavity, the lower gas cavity is used for storing gas with the planned yield and gas with the overproduction capacity, and the problem that the volume of a single gas holder cannot meet the requirement for gas recovery is solved.

Description

Technical Field

[0001] The invention relates to the technical field of gas storage equipment, and in particular to a two-stage rubber membrane sealed gas cabinet. Background Art

[0002] The description in this section merely provides background information related to the present disclosure and does not constitute prior art.

[0003] There are two main types of dry gas holders used by steel enterprises. One is the thin oil sealed gas holder, which is mainly used to store blast furnace gas and coke oven gas. The other is the rubber membrane sealed gas holder, also called Wiggins gas holder or rolling shutter gas holder. It is a fully dry gas holder that does not use liquid or semi-liquid such as water and grease. It is suitable for the storage of gas media with high dust content, high humidity and high toxic gas components. Therefore, it has become the preferred cabinet type for converter gas recovery in steel enterprises.

[0004] The maximum gas storage capacity of the rubber membrane sealed gas tanks that have been built or are under construction is 150,000 m 3 Due to the limitation of the processing length of the sealing rubber membrane and the structural installation technology, it is difficult to further increase the maximum volume of a single gas cabinet. With the development of large-scale converters, the capacity of a single cabinet is 150,000 m 3 The gas tanks are far from meeting the needs of gas recovery. One solution to this problem is to build two gas tanks arranged in parallel. However, due to the safety distance requirements between gas tanks and between gas tanks and surrounding structures, such a setting occupies too much space, resulting in higher investment costs; in addition, since it is difficult to adjust the pressure of the two gas tanks to be completely consistent, the gas distributed by the two gas tanks during the gas storage and distribution process is different, which will cause the actual operating volume to be less than the sum of the theoretical volumes of the two gas tanks.

[0005] Another solution is to build two or more gas holders at different locations to recover the gas corresponding to different converters. However, this will make the gas pipeline system complicated and difficult to manage, increase the initial investment, and increase the manpower management cost.

[0006] It should be noted that the above introduction to the technical background is only for the convenience of providing a clear and complete description of the technical solutions of the present invention and for the convenience of understanding by those skilled in the art. It cannot be considered that the above technical solutions are well known to those skilled in the art simply because these solutions are described in the background technology section of the present invention. Summary of the invention

[0007] The purpose of the present invention is to provide a two-stage rubber membrane sealed gas holder, which solves the problem that the volume of a single gas holder cannot meet the demand for gas recovery.

[0008] The above-mentioned implementation objectives of the present invention are mainly achieved by the following technical solutions:

[0009] The present invention provides a two-stage rubber membrane sealed gas cabinet, comprising:

[0010] A cabinet body, the cabinet body comprising a cabinet bottom plate and cabinet side plates erected along the periphery of the cabinet bottom plate;

[0011] A T-frame mechanism, the T-frame mechanism comprising a T-frame and a T-frame stand, the T-frame stand being arranged in a ring on the inner side of the cabinet side plate, the T-frame being arranged in a ring along the circumference of the T-frame stand and being movably connected to the top of the T-frame stand in a vertical direction;

[0012] A piston mechanism, the piston mechanism is movably disposed in the inner side of the T-frame mechanism in the vertical direction, and the piston mechanism can abut against the top of the T-frame by moving vertically upward, so as to drive the T-frame to move upward to the top of the cabinet;

[0013] The sealing mechanism includes a first sealing structure and a second sealing structure, wherein the first sealing structure is telescopically connected between the outer side of the piston mechanism and the inner side of the bottom of the T-frame, and the second sealing structure is telescopically connected between the outer side of the bottom of the T-frame and the inner side of the middle of the cabinet side panel. When the piston mechanism and the T-frame abut against the top of the cabinet, the piston mechanism, the first sealing structure and the T-frame form an upper gas chamber, and the bottom of the T-frame, the second sealing structure, the cabinet side panel and the cabinet bottom panel form a lower gas chamber. The volume formed by the upper gas chamber and the lower gas chamber being connected up and down is used to store the planned production of gas and the excess production of gas.

[0014] In a specific embodiment,

[0015] The piston mechanism includes a piston plate and a piston bracket. The piston plate is coaxially arranged with the cabinet bottom plate. The piston bracket is sleeved around the piston plate. The first sealing structure is connected between the bottom outer side of the piston bracket and the bottom inner side of the T gear frame.

[0016] In a specific embodiment, the first sealing structure and the second sealing structure are both composed of a sealing film layer and a supporting rib layer, wherein the supporting rib layer is protruded from the surface of the sealing film layer, and the supporting rib layer has a plurality of supporting ribs, each of which extends in any direction along the surface of the sealing film layer and crosses each other.

[0017] In a specific embodiment, a plurality of the supporting ribs cross at the same point of the sealing film layer, and the angles between any two adjacent supporting ribs are equal.

[0018] In a specific embodiment,

[0019] The sealing mechanism further comprises a first sealing connection member and a second sealing connection member.

[0020] Wherein, the first sealing connection piece is arranged at the bottom of the piston support along the circumferential direction of the piston mechanism, and the inner periphery of the first sealing structure is sealedly connected to the outer side of the bottom of the piston support through the first sealing connection piece;

[0021] The second sealing connection piece is arranged at the bottom of the T-frame along the circumference of the T-frame, and the outer periphery of the first sealing structure is sealed and connected to the inner side of the bottom of the T-frame through the second sealing connection piece;

[0022] The first sealing connection piece is preferably a sealing channel steel, and the second sealing connection piece is preferably a sealing angle steel.

[0023] In a specific embodiment,

[0024] The first sealing connection piece is arranged at the bottom of the T-frame along the circumference of the T-frame, and the second sealing connection piece is arranged at the middle of the cabinet side plate along the circumference of the cabinet side plate. The inner periphery of the second sealing structure is sealed to the outer side of the bottom of the T-frame through the second sealing connection piece, and the outer periphery of the second sealing structure is sealed to the inner side of the middle part of the cabinet side plate through the second sealing connection piece.

[0025] In a specific embodiment,

[0026] The sealing gap between the piston mechanism and the T-frame is 350 mm to 400 mm, and the sealing gap between the T-frame and the cabinet side plate is 400 mm to 500 mm.

[0027] In a specific implementation, the ratio of the height of the cabinet side plate to the diameter of the cabinet bottom plate is greater than 0.9.

[0028] In a specific embodiment, the volume formed by the upper gas chamber and the lower gas chamber being connected up and down is greater than 200,000 m 3 .

[0029] In a specific embodiment, the diameter of the cabinet bottom plate is 68.8 m, the ratio of the height of the cabinet side plate to the diameter of the cabinet bottom plate is 0.94, and the volume is 200,000 m 3 .

[0030] Compared with the prior art, the technical solution of the present invention has the following characteristics and advantages:

[0031] 1. The two-stage rubber membrane sealed gas holder provided by the present invention, while keeping the diameter and area of ​​the cabinet bottom plate unchanged, increases the piston stroke and redesigns the piston structure, thereby improving the height-to-diameter ratio of the existing two-stage rubber membrane sealed gas holder, and increasing the volume of the two-stage rubber membrane sealed gas holder without increasing the floor space of the original gas holder. At the same time, the two-stage rubber membrane seal also enables the upper gas chamber and the lower gas chamber to simultaneously accommodate the planned production of gas and the excess production of gas when the sealing mechanism is lifted to the highest position, so that the two-stage rubber membrane sealed gas holder provided by the present invention saves site occupation, simplifies pipeline layout, streamlines management, etc., making it have great advantages in the balance between technical and economic performance.

[0032] 2. The two-stage rubber membrane sealed gas holder provided by the present invention avoids the drawbacks of using multiple groups of small gas holders in parallel in the past, reduces the initial investment cost, reduces the cost of management, labor, and operation and maintenance during operation, and also greatly reduces the energy consumption of water, electricity, wind, and gas.

[0033] 3. The two-stage rubber membrane sealed gas tank provided by the present invention is provided with a piston plate and a piston bracket, so that the piston plate can be covered inside the gas tank to form a top cover of the upper gas chamber and the lower gas chamber, and the piston bracket can ensure the stability of the piston when it moves up and down in the vertical direction, avoiding the problem of losing balance.

[0034] 4. The height-to-diameter ratio of the two-stage rubber membrane sealed gas tank provided by the present invention is above 0.9, wherein the height-to-diameter ratio, i.e., the ratio of the height of the cabinet side plate to the diameter of the cabinet bottom plate, is further improved compared with the height-to-diameter ratio of the existing rubber membrane sealed gas tank.

[0035] 5. The two-stage rubber membrane sealed gas holder provided by the present invention solves the problem that the volume of a single rubber membrane sealed gas holder is far from meeting the demand for gas recovery during the capacity transformation of a steel plant.

[0036] 6. The two-stage rubber membrane sealed gas holder provided by the present invention can build a rubber membrane sealed gas holder with a larger volume with a smaller floor space, and the volume utilization rate is higher. At the same time, the safety distance between the rubber membrane sealed gas holder and the surrounding structures is more reasonable, thus saving more land resources.

[0037] 7. The two-stage rubber membrane sealed gas holder provided by the present invention has a reasonable and effective sealing mechanism, which can ensure the safe operation of the gas holder and ensure that the relevant parameters for the safe operation of the gas holder are within a reasonable range; the relevant parameters for ensuring the safe operation of the gas holder include the main operating parameters such as the inclination of the gas holder piston and the drift of the piston, all of which can achieve actual operating values ​​below the allowable deviation values ​​of the specifications.

[0038] 8. The two-stage rubber membrane sealed gas tank provided by the present invention has a reasonable piston mechanism design, which can ensure that the overall steel usage is reduced and reduce the weight and volume ratio of the piston mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] Figure 1 It is a structural diagram of a two-stage rubber membrane sealed gas cabinet of the present invention;

[0040] Figure 2 for Figure 1 A partial enlarged view of the D area in the middle;

[0041] Figure 3 for Figure 1 A partial enlarged view of the middle E area;

[0042] Figure 4 It is a cross-sectional structural diagram of the two-stage rubber membrane sealed gas holder of the present invention at the first rising stage;

[0043] Figure 5 It is a cross-sectional structural diagram of the two-stage rubber membrane sealed gas holder of the present invention at the second rising stage;

[0044] Figure 6 It is a cross-sectional structural diagram of the two-stage rubber membrane sealed gas holder of the present invention at the third rising stage;

[0045] Figure 7 It is a cross-sectional structural diagram of the two-stage rubber membrane sealed gas holder of the present invention at the fourth ascending stage;

[0046] Figure 8 It is a cross-sectional structural diagram of the two-stage rubber membrane sealed gas holder of the present invention at the fifth ascending stage;

[0047] Fig. 9 A cross-sectional view of a first rubber membrane or a second rubber membrane of a two-stage rubber membrane sealed gas holder of the present invention;

[0048] Fig.10 A top view of a first embodiment of a first rubber membrane or a second rubber membrane of a two-stage rubber membrane sealed gas holder of the present invention;

[0049] Fig.11 It is a top view of a second embodiment of the first rubber membrane or the second rubber membrane of the two-stage rubber membrane sealing gas holder of the present invention.

[0050] Description of Figure Numbers:

[0051] 100. Cabinet;

[0052] 110, cabinet bottom plate;

[0053] 120, cabinet side panel; 121, side panel ventilation hole;

[0054] 130, cabinet top plate;

[0055] 200, T-frame mechanism;

[0056] 210, T-frame; 220, T-frame stand;

[0057] 300, piston mechanism;

[0058] 310, piston plate; 320, piston bracket;

[0059] 400, sealing mechanism;

[0060] 410, a first sealing structure;

[0061] 420, second sealing structure; 430, first sealing connection member; 440, second sealing connection member;

[0062] 4001, sealing film layer; 4002, supporting rib layer; 4003, supporting rib;

[0063] 500, pillar;

[0064] 600, wind-resistant trusses and platforms;

[0065] 700, release system;

[0066] 800, leveling system;

[0067] 900, cabinet capacity indicator;

[0068] A. Upper gas chamber;

[0069] B. Lower gas chamber. DETAILED DESCRIPTION

[0070] In order to enable those skilled in the art to better understand the technical solutions in the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0071] It should be noted that when an element is referred to as being "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only embodiment.

[0072] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those generally understood by those skilled in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0073] like Figures 1 to 3 ,as well as Figure 8 As shown, the present invention provides a two-stage rubber membrane sealed gas cabinet, comprising:

[0074] The cabinet 100 includes a cabinet bottom plate 110, cabinet side plates 120 and columns 500 erected along the periphery of the cabinet bottom plate 110, and the columns 500 are arranged on the outer side of the cabinet side plates 120;

[0075] The T-frame mechanism 200 includes a T-frame 210 and a T-frame stand 220. The T-frame stand 220 is disposed on the inner side of the cabinet side plate 120. The T-frame 210 is disposed along the circumference of the T-frame stand 220 and is movably connected to the top of the T-frame stand 220 in the vertical direction.

[0076] The piston mechanism 300 is movably disposed in the inner side of the T-frame mechanism 200 in the vertical direction. The piston mechanism 300 can abut against the top of the T-frame 210 by moving vertically upward to drive the T-frame 210 to move upward to the top of the cabinet 100;

[0077] The sealing mechanism 400 includes a first sealing structure 410 and a second sealing structure 420. The first sealing structure 410 is telescopically connected between the outer side of the piston mechanism 300 and the inner side of the bottom of the T-frame 210. The second sealing structure 420 is telescopically connected between the outer side of the bottom of the T-frame 210 and the inner side of the middle of the cabinet side plate 120. When the piston mechanism 300 and the T-frame 210 are in contact with the top of the cabinet body 100, the piston mechanism 300, the first sealing structure 410 and the T-frame 210 are surrounded to form an upper gas chamber A. The bottom of the T-frame 210, the second sealing structure 420, the cabinet side plate 120 and the cabinet bottom plate 110 are surrounded to form a lower gas chamber B. The volume formed by the upper gas chamber A and the lower gas chamber B being connected up and down is used to store the planned production gas and the excess production gas.

[0078] The two-stage rubber membrane sealed gas holder provided by the present invention, while keeping the diameter and area of ​​the cabinet bottom plate 110 of the cabinet body 100 unchanged, redesigns the piston mechanism 300 by increasing the piston stroke, thereby improving the height-to-diameter ratio of the existing two-stage rubber membrane sealed gas holder, and increasing the volume of the two-stage rubber membrane sealed gas holder without increasing the floor area of ​​the original gas holder. At the same time, the two-stage rubber membrane seal also enables the upper gas chamber A and the lower gas chamber B to simultaneously accommodate the planned production of gas and the excess production of gas when the sealing mechanism 400 is lifted to the highest position, so that the two-stage rubber membrane sealed gas holder provided by the present invention saves site occupation, simplifies pipeline layout, streamlines management, etc., making it have great advantages in the balance between technical and economic performance.

[0079] The two-stage rubber membrane sealed gas holder provided by the present invention avoids the drawbacks of using multiple groups of small gas holders in parallel in the past, reduces the initial investment cost, reduces the cost of management, labor, and operation and maintenance during operation, and also greatly reduces the energy consumption of water, electricity, wind, and gas.

[0080] Specifically in this embodiment, the cabinet body 100 is generally cylindrical, the cabinet bottom plate 110 is generally circular, the cabinet bottom plate 110 is erected on the work surface to be installed, the cabinet side plate 120 is sealed and connected to the periphery of the cabinet bottom plate 110 to form the side wall of the cabinet body 100, the cabinet body 100 also has a cabinet top plate 130, the cabinet top plate 130 is connected to the top end of the cabinet side plate 120 to form a cylindrical cabinet body 100, and an inner cavity for accommodating a T-frame mechanism 200 and a sealing mechanism 400 is formed inside the cabinet body 100, and the T-frame mechanism 200 and the sealing mechanism 400 are both arranged on the inner side of the cabinet body 100.

[0081] In this embodiment, the T-frame stand 220 of the T-frame structure is arranged around the inner wall of the cabinet side panel 120 to form an annular structure. The lower end of the T-frame stand 220 is connected to the cabinet bottom plate 110, and the upper end of the T-frame stand 220 forms a platform for connecting with the bottom end of the T-frame 210. In this embodiment, the T-frame 210 is also arranged around the inner side of the cabinet side panel 120. The T-frame 210 and the T-frame stand 220 are arranged coaxially, and the T-frame 210 can be movably arranged in the cabinet body 100 along the vertical direction. The T-frame 210 can move downward and abut against the upper end of the T-frame stand 220. The T-frame stand 220 is used to provide a certain installation position height for the T-frame 210, so that the piston mechanism 300 can abut against the T-frame 210 after moving up a certain distance, so as to form an upper gas chamber A on the inner side of the T-frame 210 and below the piston mechanism 300.

[0082] In this embodiment, the piston mechanism 300 is penetrated through the inner side of the T-frame stand 220 and the inner side of the T-frame 210. The piston mechanism 300 can be movably arranged in the vertical direction. When the piston mechanism 300 moves upward, the piston mechanism 300 can abut against the top of the T-frame 210 and drive the T-frame 210 to move upward together. When the piston mechanism 300 moves upward together with the T-frame 210, a lower gas chamber B is formed below the T-frame 210 and on the inner side of the cabinet side panel 120.

[0083] In the present embodiment, the first sealing structure 410 and the second sealing structure 420 are sealing structures generally made of rubber material. During the stretching or contraction of the two ends of the first sealing structure 410, the first sealing structure 410 can still maintain a sealed connection between the outer side of the piston mechanism 300 and the inner side of the bottom of the T-frame 210, or during the stretching or contraction of the two ends of the second sealing structure 420, the second sealing structure 420 can still maintain a sealed connection between the outer side of the bottom of the T-frame 210 and the inner side of the middle of the cabinet side panel 120. In the present embodiment, the first sealing structure 410 is used to seal the gap between the outer side of the piston mechanism 300 and the inner side of the T-frame 210, and the second sealing structure 420 is used to seal the gap between the outer side of the T-frame 210 and the inner side of the cabinet side panel 120 to prevent gas leakage from these gaps.

[0084] In this embodiment, the first sealing structure 410 is telescopically connected between the outer side of the piston mechanism 300 and the inner side of the bottom of the T-frame 210, that is, when the cabinet 100 is in an initial state without storing gas, the bottom end of the piston mechanism 300 is in contact with the cabinet bottom plate 110, and one end of the first sealing structure 410 is connected to the inner side of the bottom of the T-frame 210. When the gas is gradually injected into the interior of the cabinet 100, the piston mechanism 300 rises, and the distance between the bottom of the piston mechanism 300 and the bottom of the T-frame 210 in the vertical direction is shortened, and the first sealing structure 410 gradually deforms until the upper end of the piston mechanism 300 abuts against the upper end of the T-frame 210, and the deformation of the first sealing structure 410 stops.

[0085] In this embodiment, the second sealing structure 420 is retractably connected between the bottom outer side of the T-frame 210 and the middle inner side of the cabinet side plate 120, that is, when the piston mechanism 300 is not in contact with the upper end of the T-frame 210, the second sealing structure 420 is retractably connected between the bottom outer side of the T-frame 210 and the middle inner side of the cabinet side plate 120. Figures 4 to 5 As shown, the second sealing structure 420 remains in an undeformed state; when the gas is gradually injected into the cabinet 100, the second sealing structure 420 remains in an undeformed state; Figure 6 to Figure 7 As shown, the piston mechanism 300 abuts against the upper end of the T-frame 210 and drives the T-frame 210 to move upward. When the T-frame 210 gradually moves upward to the middle of the cabinet side plate 120, the second sealing structure 420 is not in the maximum tension state; Figure 8As shown, when the T-frame 210 gradually moves from the middle of the cabinet side panel 120 to the top of the cabinet body 100, the second sealing structure 420 continues to stretch. When the T-frame 210 abuts against the top of the cabinet body 100, the second sealing structure 420 is in a maximum stretching state.

[0086] like Figure 1 and Figure 3 As shown, in one specific embodiment,

[0087] The piston mechanism 300 includes a piston plate 310 and a piston bracket 320. The piston plate 310 is coaxially arranged with the cabinet bottom plate 110. The piston bracket 320 is sleeved on the periphery of the piston plate 310. The first sealing structure 410 is connected between the outer side of the piston bracket 320 and the inner side of the bottom of the T-frame 210.

[0088] The two-stage rubber membrane sealed gas tank provided by the present invention is provided with a piston plate 310 and a piston bracket 320, wherein the piston plate 310 can become a common top cover of the upper gas chamber A and the lower gas chamber B, and the piston bracket 320 can limit the stability of the piston mechanism 300 when moving up and down in the vertical direction, avoiding the problem of the piston plate 310 losing balance.

[0089] Specifically in this embodiment, the piston plate 310 is generally a circular plate, the center of the piston plate 310 is concentrically arranged with the center of the cabinet bottom plate 110, the piston bracket 320 is generally annular structure, the piston bracket 320 is connected to the periphery of the piston plate 310, and the piston bracket 320 extends vertically. In this embodiment, the first sealing structure 410 is connected to the outer side of the piston bracket 320, and the piston bracket 320 is sealed and connected to the outer side of the piston plate 310 to prevent gas from overflowing from between the piston bracket 320 and the piston plate 310.

[0090] like Figure 1 and Figure 3 As shown, in one specific embodiment,

[0091] In this embodiment, the first sealing structure 410 and the second sealing structure 420 are both annular membrane structures made of rubber material, the outer periphery of the first sealing structure 410 is connected to the inner side of the bottom of the T-frame 210, and the inner periphery of the first sealing structure 410 is connected to the outer side of the bottom of the piston support 320; the inner periphery of the second sealing structure 420 is connected to the outer side of the bottom of the T-frame 210, and the outer periphery of the second sealing structure 420 is connected to the inner side of the middle part of the cabinet side panel 120.

[0092] In this embodiment, when the cabinet 100 is in the initial state without storing gas, refer to Figure 4As shown, the bottom ends of the piston plate 310 and the piston bracket 320 are in contact with the cabinet bottom plate 110, and the first sealing structure 410 and the second sealing structure 420 are both in an undeformed state. When the gas is gradually injected into the cabinet body 100, Figure 5 As shown, the piston plate 310 and the piston bracket 320 both move upward, and the first sealing structure 410 gradually deforms. When the top of the piston bracket 320 rises to abut against the top of the T-frame 210, the first sealing structure 410 maintains the final deformation state; the piston bracket 320 and the piston plate 310 continue to move upward, and when the top of the T-frame 210 and the top of the piston bracket 320 abut against the top of the cabinet 100, the first sealing structure 410 is in the maximum tension state, and the second sealing structure 420 is in the maximum tension state, refer to Figure 6 shown.

[0093] like Fig. 9 and Fig.10 As shown, in one specific embodiment,

[0094] The first sealing structure 410 and the second sealing structure 420 are both composed of a sealing film layer 4001 and a supporting rib layer 4002. The supporting rib layer 4002 is formed by protruding from the surface of the sealing film layer 4001. The supporting rib layer 4002 has a plurality of supporting ribs 4003. Each supporting rib 4003 extends in any direction along the surface of the sealing film layer 4001 and crosses each other.

[0095] In the present embodiment, the first sealing structure 410 is composed of a sealing film layer 4001 and a supporting rib layer 4002. In other embodiments, the second sealing structure 420 may also be composed of a sealing film layer 4001 and a supporting rib layer 4002. There is no specific limitation on this. In the present embodiment, the sealing film layer 4001 is made of a deformable rubber material, and the supporting rib layer 4002 is formed by convexly protruding outward from one side of the sealing film layer 4001. The supporting rib layer 4002 has a plurality of supporting ribs 4003, that is, the supporting ribs 4003 extend along the surface of the sealing film layer 4001. The cross-linking of the plurality of supporting ribs 4003 can increase a plurality of stress concentration points, which is convenient for dispersing stress and increasing the structural deformation force that the sealing film layer 4001 can bear, so as to avoid the sealing film layer 4001 being broken, cracked, or losing the sealing effect due to the excessive stretching length of the sealing film layer 4001. In this embodiment, a plurality of supporting ribs 4003 cross each other at the same point to form a radial structure similar to a cross-shaped structure. In other embodiments, a plurality of supporting ribs 4003 cross each other at different points to form a mesh-like supporting rib layer 4002.

[0096] like Fig. 9 and Fig.11As shown, in a specific embodiment, a plurality of supporting ribs 4003 cross at the same point of the sealing film layer 4001, and the angles between any two adjacent supporting ribs 4003 are equal.

[0097] In this embodiment, multiple supporting rib layers 4002 cross at the same point, that is, multiple supporting ribs 4003 extend in all directions from the same point to form a "M-shaped" supporting rib layer 4002. The extension distance of each supporting rib 4003 is similar, and the stress concentration point of each supporting rib 4003 is located at the same point, so that each supporting rib 4003 can effectively share the tensile stress in its extension direction.

[0098] In this embodiment, the angles between two adjacent supporting ribs 4003 are equal, that is, when any supporting rib 4003 bears the deformation tension in its extension direction, the supporting force given by the adjacent supporting ribs 4003 is the same, which can effectively improve the service life of the sealing film layer 4001 and avoid stress concentration in a certain place of the sealing film layer 4001.

[0099] like Figure 2 and Figure 4 As shown, in one specific embodiment,

[0100] The sealing mechanism 400 further includes a first sealing connection member 430 and a second sealing connection member 440.

[0101] The first sealing connection member 430 is disposed at the bottom of the piston support 320 along the circumference of the piston mechanism 300, and the inner periphery of the first sealing structure 410 is sealed and connected to the outer side of the bottom of the piston support 320 through the first sealing connection member 430;

[0102] The second sealing connection member 440 is disposed at the bottom of the T-frame 210 along the circumference of the T-frame 210 , and the outer periphery of the first sealing structure 410 is sealed and connected to the inner side of the bottom of the T-frame 210 through the second sealing connection member 440 ;

[0103] The first sealing connection member 430 is preferably a sealing channel steel, and the second sealing connection member 440 is preferably a sealing angle steel.

[0104] The two-stage rubber membrane sealed gas tank provided by the present invention adopts a first sealing connector 430 and a second sealing connector 440 to seal and fix the first sealing structure 410 on the piston support 320 and the T-frame 210, wherein the first sealing connector 430 is arranged along the periphery of the outer bottom of the piston support 320; the second sealing connector 440 is arranged along the periphery of the inner bottom of the T-frame, and the inner periphery of the first sealing structure 410 is connected to the piston support 320 through the first sealing connector 430; the second sealing connector 440 is arranged along the inner periphery of the T-frame 210, and the outer periphery of the first sealing structure 410 is sealed and connected to the inner bottom of the T-frame 210 through the second sealing connector 440. The sealing between the piston mechanism 300 and the T-frame 210 is achieved to prevent the gas from escaping from the gap between the piston mechanism 300 and the T-frame 210.

[0105] like Figure 2 and Figure 3 As shown, in one specific embodiment,

[0106] The sealing mechanism 400 further includes a first sealing connector 430 and a second sealing connector 440. The first sealing connector 430 is disposed at the bottom of the T-frame 210, the second sealing connector 440 is disposed at the middle of the cabinet side plate 120, the inner periphery of the second sealing structure 420 is sealed to the outer side of the bottom of the T-frame 210 through the first sealing connector 430, and the outer periphery of the second sealing structure 420 is sealed to the inner side wall of the middle of the cabinet side plate 120 through the second sealing connector 440;

[0107] The first sealing connection member 430 is preferably a sealing channel steel, and the second sealing connection member 440 is preferably a sealing angle steel.

[0108] The two-stage rubber membrane sealed gas cabinet provided by the present invention adopts a first sealing connector 430 and a second sealing connector 440 to seal and fix the second sealing structure 420 on the T-frame 210 and the cabinet side panel 120 respectively, thereby achieving sealing between the cabinet side panel 120 and the T-frame 210 and preventing gas from escaping from the gap between the cabinet side panel 120 and the T-frame 210.

[0109] Specifically in this embodiment, the first sealing connector 430 is arranged along the outer periphery of the T-frame 210, the second sealing structure 420 is generally annular sealing membrane structure, the second sealing structure 420 is telescopically arranged, and the inner periphery of the second sealing structure 420 is sealed and connected to the outer peripheral side wall of the bottom of the T-frame 210 through the first sealing connector 430; the second sealing connector 440 is arranged along the inner periphery of the middle side wall of the cabinet side panel 120, and the outer periphery of the second sealing structure 420 is sealed and connected to the inner peripheral side wall of the cabinet side panel 120 through the second sealing connector 440.

[0110] The first sealing connection member 430 is preferably a sealing channel steel, and the second sealing connection member 440 is preferably a sealing angle steel.

[0111] like Figure 2 and Figure 3 As shown, in one specific embodiment,

[0112] The sealing gap between the piston mechanism 300 and the T-frame 210 is 350 mm to 400 mm, and the sealing gap between the T-frame 210 and the cabinet side plate 120 is 400 mm to 500 mm.

[0113] The two-stage rubber membrane sealed gas cabinet provided by the present invention has a greater sealing elastic range requirement for the sealing mechanism 400 due to the increase in the vertical height of the sealing mechanism 400 in the cabinet body 100, wherein the sealing gap used to place the sealing mechanism 400 determines the circumference of the first sealing structure 410 and the second sealing structure 420. Therefore, a sealing gap is set between the piston mechanism 300 and the T-frame 210, and a sealing gap is set between the T-frame 210 and the cabinet side plate 120, which can accommodate a larger volume of the first sealing structure 410 and the second sealing structure 420, and can significantly improve the sealing range and sealing ability of the first sealing structure 410 and the second sealing structure 420, thereby ensuring the sealing effect of the sealing mechanism 400 on the upper gas chamber A and the lower gas chamber B.

[0114] Specifically in this embodiment, the sealing gap between the piston mechanism 300 and the T-frame 210 is 350 mm to 400 mm, that is, the gap between the outer wall of the piston mechanism 300 and the inner wall of the T-frame 210 in the radial direction of the cabinet 100 is 350 mm to 400 mm.

[0115] Specifically in this embodiment, the sealing gap between the T-frame 210 and the cabinet side plate 120 is 400 mm to 500 mm, that is, the gap between the outer wall of the T-frame 210 and the inner wall of the cabinet side plate 120 in the radial direction of the cabinet body 100 is 400 mm to 500 mm.

[0116] like Figure 1 As shown, in a specific embodiment, the ratio of the height of the cabinet side plate 120 to the diameter of the cabinet bottom plate 110 is greater than 0.9.

[0117] The height-to-diameter ratio of the two-stage rubber membrane sealed gas holder provided by the present invention is above 0.9, wherein the height-to-diameter ratio, i.e., the ratio of the height of the cabinet side panel 120 to the diameter of the cabinet bottom panel 110, is further improved compared with the height-to-diameter ratio of the existing rubber membrane sealed gas holder, and can increase the total volume of the upper gas chamber A and the lower gas chamber B, so that the upper gas chamber A and the lower gas chamber B can simultaneously accommodate the planned production of gas and the excess production of gas, and also the two-stage rubber membrane sealed gas holder provided by the present invention saves site occupation, simplifies pipeline layout, streamlines management, etc., which has great advantages in the balance between technical and economic performance.

[0118] like Figure 8 As shown, in a specific embodiment, the upper gas chamber A and the lower gas chamber B are connected up and down to form a volume greater than 200,000 m 3 .

[0119] In the two-stage rubber membrane sealed gas cabinet provided by the present invention, when the piston mechanism 300 and the T-frame 210 abut against the top of the cabinet body 100, the first sealing structure 410 is in a stretched state, wherein the piston plate 310 of the piston mechanism 300, the piston bracket 320, the rubber membrane 411 of the first sealing structure 410, and the T-frame 210 are arranged to form an upper gas chamber A.

[0120] In the two-stage rubber membrane sealed gas cabinet provided by the present invention, when the piston mechanism 300 and the T-frame 210 are in contact with the top of the cabinet body 100, the second sealing structure 420 is also in a stretched state, wherein the bottom of the T-frame 210, the second sealing structure 420, the cabinet side plate 120, and the cabinet bottom plate 110 are surrounded to form a lower gas chamber B, wherein the lower end of the upper gas chamber A is connected to the upper end of the lower gas chamber B, so that when the height-to-diameter ratio of the two-stage rubber membrane sealed gas cabinet is above 0.9, the volume of the upper gas chamber A and the volume of the lower gas chamber B form a volume greater than 200,000 m 3 The volume.

[0121] The two-stage rubber membrane sealed gas holder provided by the present invention solves the problem that the volume of a single rubber membrane sealed gas holder is far from meeting the demand for gas recovery during the capacity transformation of a steel plant.

[0122] like Figure 1 and Figure 2 As shown, in one specific embodiment, the diameter of the cabinet bottom plate 110 is 68.8 m, the ratio of the height of the cabinet side plate 120 to the diameter of the cabinet bottom plate 110 is 0.94, and the volume is 200,000 m 3 .

[0123] In a specific embodiment of the two-stage rubber membrane sealed gas cabinet provided by the present invention, the diameter of the cabinet bottom plate 110 used is 68.8m. 3The gas storage volume is determined by determining that the ratio of the height of the cabinet side plate 120 to the diameter of the cabinet bottom plate 110 is 0.94.

[0124] The two-stage rubber membrane sealed gas holder provided by the present invention builds a rubber membrane sealed gas holder with a larger volume with a smaller floor space, and the volume utilization rate is higher. At the same time, the safety distance between the rubber membrane sealed gas holder and surrounding structures is more reasonable, and land resources are saved.

[0125] In the specific design process, due to the change in the overall height-to-diameter ratio of the gas tank, it is necessary to model the gas tank. First, a finite element analysis is performed on the gas tank as a whole.

[0126] Step S1: Establish the stiffness matrix. The analysis process according to the stiffness matrix is ​​as follows:

[0127] (1) Structural identification, including node and element numbering, setting of local coordinate system and structural coordinate system;

[0128] (2) Establish node displacement vector and node load vector;

[0129] (3) Establish the stiffness matrix of each unit after considering the displacement constraint conditions;

[0130] (4) Forming the structural stiffness matrix and establishing the structural stiffness equation;

[0131] (5) Solve the structural stiffness equation and calculate the unknown displacement of the nodes;

[0132] (6) Calculate the rod end force and support reaction force of each unit;

[0133] (7) Verification.

[0134] Step S2: Calculate input loads: input snow load, platform live load, pressure load, wind load, cabinet body structure load, earthquake load, auxiliary process equipment (leveling, etc.) load.

[0135] Step S3: Simulate the constraints of boundary conditions. The specific constraint process is as follows:

[0136] (1) Constrain the bottom of the column of the cabinet 100 and the three translational degrees of freedom of the node at the bottom of the column;

[0137] (2) constraining the circumferential and radial displacements of the piston guide wheel, that is, assuming that the piston mechanism 300 is in a working state or an overhaul state, the piston mechanism 300 cannot move in its circumferential and radial directions;

[0138] (3) constraining the vertical displacement of the lower part of the piston mechanism 300 to the guide wheel when the piston mechanism 300 is in the working state;

[0139] (4) When the piston mechanism 300 is in the maintenance state, the contact point between the piston mechanism 300 and the bracket is displaced in the vertical direction.

[0140] Step S4: Perform combined calculations on different working conditions. The specific calculation process is as follows:

[0141] (1) During production, there is a piston mechanism 300, a gas counterweight and air pressure, and the body pressure is balanced with the piston and the counterweight:

[0142] Among the things to consider are:

[0143] ① Consider the different effects of wind pressure and suction on the cabinet side panel 120;

[0144] ② Consider that the piston mechanism 300 has different conditions at the upper and lower limit positions.

[0145] (2) When not in production, there is no piston mechanism 300 and no air pressure, and the constant load is beneficial to the structural overturning of the gas cabinet;

[0146] (3) Loads during earthquakes:

[0147] Among the things to consider are:

[0148] ① When not in production;

[0149] ②During production.

[0150] Based on the above situations, 200,000 m 3 The gas tank structure is designed and calculated, and the best structural form is designed based on the cabinet body 100, T-frame mechanism 200, piston mechanism 300, and sealing mechanism 400 of the above-mentioned two-stage rubber membrane sealed gas tank.

[0151] A plurality of columns 500 are vertically disposed on the outer side of the cabinet side plate 120 of the two-stage rubber membrane sealed gas cabinet provided by the present invention.

[0152] The two-stage rubber membrane sealed gas cabinet provided by the present invention has a plurality of wind-resistant trusses and platforms 600 arranged at intervals along the vertical direction on the outer side of the cabinet side panel 120 , wherein each wind-resistant truss and platform 600 is arranged around the outer side of the cabinet side panel 120 .

[0153] The two-stage rubber membrane sealed gas cabinet provided by the present invention also has a release system 700, one end of which is connected to the cabinet side panel 120, and the other end of which is connected to the atmosphere, so as to quickly release the gas when the gas pressure is too high.

[0154] The two-stage rubber membrane sealed gas cabinet provided by the present invention is also provided with a plurality of side panel ventilation holes 121 on the upper part of the cabinet side panel 120. The diameter of the cabinet bottom panel 110 is 68.8 m, the ratio of the height of the cabinet side panel 120 to the diameter of the cabinet bottom panel 110 is 0.94, and the volume is 200,000 m 3 In the embodiment, a plurality of ventilation hole rows are formed along the height direction of the cabinet side plate 120 , and each ventilation hole row has a plurality of side plate ventilation holes 121 spaced apart along the circumference of the cabinet side plate 120 .

[0155] The two-stage rubber membrane sealed gas cabinet provided by the present invention further comprises a leveling system 800 and a cabinet capacity indicator 900 .

[0156] Specifically, in one embodiment, after the finite element analysis of the gas cabinet as a whole is performed in step S1, the two softwares GTSTRUDL and MSC / NASTRAN can be compared to perform modeling calculations and compare the calculation results, so as to reasonably optimize the steel structure design of the piston bracket 320 and the T-frame 210, so that the overall steel consumption of the piston bracket 320 and the T-frame 210 is only 13.25 kg / m 3 .

[0157] The two-stage rubber membrane sealed gas holder provided by the present invention has a reasonable and effective sealing mechanism 400, which can ensure the safe operation of the gas holder and ensure that the relevant parameters of the safe operation of the gas holder are within a reasonable range; the relevant parameters to ensure the safe operation of the gas holder include the main operating parameters such as the inclination amount of the gas holder piston and the piston drift amount, all of which can achieve actual operating values ​​below the allowable deviation value of the specification.

[0158] The two-stage rubber membrane sealed gas holder provided by the present invention has a piston mechanism 300 that is reasonably designed, which can ensure that the overall steel usage is reduced and reduce the weight to volume ratio of the piston mechanism 300.

[0159] The above specific embodiments further illustrate the purpose, technical solutions and beneficial effects of the present invention in detail. It should be understood that the above description is only a specific embodiment of the present invention and is not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A two-stage rubber membrane sealed gas tank, characterized in that: include: A cabinet body, the cabinet body comprising a cabinet bottom plate and cabinet side plates erected along the periphery of the cabinet bottom plate; A T-frame mechanism, the T-frame mechanism comprising a T-frame and a T-frame stand, the T-frame stand being arranged in a ring on the inner side of the cabinet side plate, the T-frame being arranged in a ring along the circumference of the T-frame stand and being movably connected to the top of the T-frame stand in a vertical direction; A piston mechanism, the piston mechanism is movably disposed in the inner side of the T-frame mechanism in the vertical direction, and the piston mechanism can abut against the top of the T-frame by moving vertically upward, so as to drive the T-frame to move upward to the top of the cabinet; The sealing mechanism includes a first sealing structure and a second sealing structure, wherein the first sealing structure is telescopically connected between the outer side of the piston mechanism and the inner side of the bottom of the T-frame, and the second sealing structure is telescopically connected between the outer side of the bottom of the T-frame and the inner side of the middle of the cabinet side panel. When the piston mechanism and the T-frame abut against the top of the cabinet, the piston mechanism, the first sealing structure and the T-frame form an upper gas chamber, and the bottom of the T-frame, the second sealing structure, the cabinet side panel and the cabinet bottom panel form a lower gas chamber. The volume formed by the upper gas chamber and the lower gas chamber being connected up and down is used to store the planned production gas and the excess production gas.

2. The two-stage rubber membrane sealed gas tank according to claim 1 is characterized in that: The piston mechanism includes a piston plate and a piston bracket. The piston plate is coaxially arranged with the cabinet bottom plate. The piston bracket is sleeved around the piston plate. The first sealing structure is connected between the bottom outer side of the piston bracket and the bottom inner side of the T gear frame.

3. The two-stage rubber membrane sealed gas holder according to claim 2 is characterized in that: The first sealing structure and the second sealing structure are both composed of a sealing film layer and a supporting rib layer. The supporting rib layer is formed by protruding from the surface of the sealing film layer. The supporting rib layer has a plurality of supporting ribs, and each of the supporting ribs extends in any direction along the surface of the sealing film layer and crosses each other.

4. The two-stage rubber membrane sealed gas holder according to claim 3 is characterized in that: A plurality of the supporting ribs cross at the same point of the sealing film layer, and the angles between any two adjacent supporting ribs are equal.

5. The two-stage rubber membrane sealed gas holder according to claim 2 is characterized in that: The sealing mechanism further comprises a first sealing connection member and a second sealing connection member. Wherein, the first sealing connection piece is arranged at the bottom of the piston support along the circumferential direction of the piston mechanism, and the inner periphery of the first sealing structure is sealedly connected to the outer side of the bottom of the piston support through the first sealing connection piece; The second sealing connection piece is arranged at the bottom of the T-frame along the circumference of the T-frame, and the outer periphery of the first sealing structure is sealed and connected to the inner side of the bottom of the T-frame through the second sealing connection piece; The first sealing connection piece is preferably a sealing channel steel, and the second sealing connection piece is preferably a sealing angle steel.

6. The two-stage rubber membrane sealed gas holder according to claim 5, characterized in that: The first sealing connection piece is arranged at the bottom of the T-frame along the circumference of the T-frame, and the second sealing connection piece is arranged at the middle of the cabinet side plate along the circumference of the cabinet side plate. The inner periphery of the second sealing structure is sealed to the outer side of the bottom of the T-frame through the first sealing connection piece, and the outer periphery of the second sealing structure is sealed to the inner side of the middle part of the cabinet side plate through the second sealing connection piece.

7. The two-stage rubber membrane sealed gas tank according to claim 1 is characterized in that: The sealing gap between the piston mechanism and the T-frame is 350 mm to 400 mm, and the sealing gap between the T-frame and the cabinet side plate is 400 mm to 500 mm.

8. The two-stage rubber membrane sealed gas holder according to claim 1 is characterized in that: The ratio of the height of the cabinet side plate to the diameter of the cabinet bottom plate is greater than 0.

9.

9. The two-stage rubber membrane sealed gas holder according to claim 8, characterized in that: The volume formed by the upper gas chamber and the lower gas chamber being connected up and down is greater than 200,000 m 3 .

10. The two-stage rubber membrane sealed gas holder according to claim 9, characterized in that: The diameter of the cabinet bottom plate is 68.8m, the ratio of the height of the cabinet side plate to the diameter of the cabinet bottom plate is 0.94, and the volume is 200,000 m 3 .

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