Two-section type rubber membrane sealing gas chamber

Abstract

The utility model provides a two-section type rubber membrane sealing gas cabinet which comprises a cabinet body and cabinet side plates vertically arranged along the periphery of a cabinet bottom plate. The T-gear rack is annularly arranged on the inner side of the cabinet side plate, and the 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 utility model relates to the technical field of gas storage equipment, in particular to a two-stage rubber membrane sealed gas holder. Background Technique

[0002] The description of this part only provides background information related to the disclosure of the utility model, and does not constitute the prior art.

[0003] The dry gas holders used in iron and steel enterprises are mainly divided into two categories. One is the 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 and rolling curtain gas holder. It is a fully dry gas holder that does not use liquids or semi-liquids such as water and grease, and is suitable for storing gas media with a large amount of dust, high humidity and many toxic gas components. Therefore, it has become the preferred gas holder type for the recovery of converter gas in iron and steel enterprises.

[0004] At present, the ultimate gas storage volume of the built and under-construction rubber membrane sealed gas holders is 150,000 m 3 , limited by the processing length of the sealing rubber membrane and the structure installation technology, it is very difficult to further increase the ultimate volume of a single gas holder. With the development of the large-scale converter, the gas holder with a single tank capacity of 150,000 m 3 is far from meeting the demand for gas recovery. In response to this problem, one solution is to build two gas holders arranged in parallel. However, due to the requirements for the safety distance between gas holders and between gas holders and surrounding structures and buildings, such a setting occupies too much land area, resulting in a higher investment cost; in addition, since it is very difficult to adjust the pressures of the two gas holders to be exactly the same, there are differences in the gas distributed by the two gas holders during the gas storage and distribution process, which will cause the actual volume in the actual operation to be less than the sum of the theoretical volumes of the two gas holders.

[0005] Another solution is to build two or more gas holders at different locations to recover the gas corresponding to different converters respectively. However, on the one hand, this will make the gas pipeline system intricate and difficult to manage, increasing the initial investment, and on the other hand, it will also increase the labor management cost.

[0006] It should be noted that the above introduction of the technical background is only for the convenience of clearly and completely explaining the technical solution of the utility model and facilitating the understanding of those skilled in the art. It cannot be considered that the above technical solutions are well-known to those skilled in the art just because these solutions are described in the background technical part of the utility model. Content of the Utility Model

[0007] The purpose of the utility model 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 implementation objectives of the present utility model are mainly achieved by the following technical solutions:

[0009] The present utility model provides a two-stage rubber membrane sealed gas holder, comprising:

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

[0011] A T-shaped rack mechanism, the T-shaped rack mechanism includes a T-shaped rack and a T-shaped rack bench, the T-shaped rack bench is arranged around the inner side of the cabinet side plate, the T-shaped rack is arranged around the circumference of the T-shaped rack bench and is movably connected to the top of the T-shaped rack bench along the vertical direction;

[0012] A piston mechanism, the piston mechanism is movably arranged along the vertical direction through the inner side of the T-shaped rack mechanism, the piston mechanism can be abutted against the top of the T-shaped rack by moving vertically upward, so as to drive the T-shaped rack to move upward to the top of the cabinet body;

[0013] A sealing mechanism, including a first sealing structure and a second sealing structure, 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-shaped rack, the second sealing structure is telescopically connected between the outer side of the bottom of the T-shaped rack and the inner side of the middle part of the cabinet side plate, when the piston mechanism and the T-shaped rack are abutted against the top of the cabinet body, the piston mechanism, the first sealing structure and the T-shaped rack enclose an upper gas chamber, the bottom of the T-shaped rack, the second sealing structure, the cabinet side plate and the cabinet bottom plate enclose a lower gas chamber, and the volume formed by the upper gas chamber and the lower gas chamber connected up and down is used to store the gas of the planned output and the gas of the over-production.

[0014] In a specific embodiment,

[0015] The piston mechanism includes a piston plate and a piston support, the piston plate is coaxially corresponding to the cabinet bottom plate, the piston support is sleeved around the periphery of the piston plate, and the first sealing structure is connected between the outer side of the bottom of the piston support and the inner side of the bottom of the T-shaped rack.

[0016] In a specific embodiment, both the first sealing structure and the second sealing structure are composed of a sealing film layer and a support rib layer, the support rib layer protrudes from the surface of the sealing film layer, the support rib layer has a plurality of support ribs, and each support rib extends along any direction on the surface of the sealing film layer and intersects with each other.

[0017] In a specific embodiment, a plurality of the support ribs intersect at the same point on the sealing film layer, and the included angle between any two adjacent support ribs is equal.

[0018] In a specific embodiment,

[0019] The sealing mechanism further includes a first sealing connector and a second sealing connector.

[0020] Wherein, the first sealing connector is disposed along the circumferential direction of the piston mechanism at the bottom of the piston bracket, and the inner periphery of the first sealing structure is sealingly connected to the outer side of the bottom of the piston bracket through the first sealing connector;

[0021] The second sealing connector is disposed along the circumferential direction of the T-shaped frame at the bottom of the T-shaped frame, and the outer periphery of the first sealing structure is sealingly connected to the inner side of the bottom of the T-shaped frame through the second sealing connector;

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

[0023] In a specific embodiment,

[0024] The first sealing connector is disposed along the circumferential direction of the T-shaped frame at the bottom of the T-shaped frame, the second sealing connector is disposed along the circumferential direction of the cabinet side plate in the middle of the cabinet side plate, the inner periphery of the second sealing structure is sealingly connected to the outer side of the bottom of the T-shaped frame through the second sealing connector, and the outer periphery of the second sealing structure is sealingly connected to the inner side of the middle of the cabinet side plate through the second sealing connector.

[0025] In a specific embodiment,

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

[0027] In a specific embodiment, 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 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 utility model has the following characteristics and advantages:

[0031] 1. The two-stage rubber membrane sealed gas holder provided by the present utility model, on the premise of keeping the diameter and area of the bottom plate of the gas holder body unchanged, increases the piston stroke, re-structures the piston structure, improves the height-diameter ratio of the existing two-stage rubber membrane sealed gas holder, and increases 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 and lower gas chambers to accommodate the planned production volume of gas and the over-production volume of gas simultaneously when the seal mechanism is lifted to the highest position, which also saves the site occupation, simplifies the pipeline layout, streamlines management, etc. of the two-stage rubber membrane sealed gas holder provided by the present utility model, making it have great advantages in the balance between technicality and economy.

[0032] 2. The two-stage rubber membrane sealed gas holder provided by the present utility model avoids the disadvantages of the parallel use of multiple groups of small gas holders in the past, reduces the upfront investment cost, reduces the costs of management, labor, operation and maintenance during operation, and significantly reduces the energy consumption of water, electricity, wind, gas, etc.

[0033] 3. The two-stage rubber membrane sealed gas holder provided by the present utility model is provided with a piston plate and a piston support, so that the piston plate can cover the inside of the gas holder to form the top cover of the upper and lower gas chambers, and the piston support can ensure the stability of the piston when moving up and down in the vertical direction, avoiding the problem of loss of balance.

[0034] 4. The height-diameter ratio of the two-stage rubber membrane sealed gas holder provided by the present utility model is above 0.9. Among them, the height-diameter ratio is the ratio of the height of the side plate of the gas holder to the diameter of the bottom plate of the gas holder, and is further improved compared with the height-diameter ratio of the existing rubber membrane sealed gas holder.

[0035] 5. The two-stage rubber membrane sealed gas holder provided by the present utility model solves the problem that the volume of a single rubber membrane sealed gas holder in the steel plant production capacity transformation far cannot meet the demand for gas recovery.

[0036] 6. The two-stage rubber membrane sealed gas holder provided by the present utility model builds a rubber membrane sealed gas holder with a larger volume with less floor area, has a higher volume utilization rate, and at the same time, the safety distance between the rubber membrane sealed gas holder and the surrounding structures is more reasonable, saving more land resources.

[0037] 7. The sealing mechanism of the two-stage rubber membrane sealed gas holder provided by the present utility model is reasonable and effective, can ensure the safe operation of the gas holder, and the relevant parameters for ensuring 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 operation parameters such as the inclination of the gas holder piston and the piston drift, etc., and can all achieve the actual operation values below the allowable deviation values specified in the specifications.

[0038] 8. The two-stage rubber membrane sealed gas holder provided by the present utility model has a reasonable piston mechanism design, which can ensure a reduction in the overall steel consumption and a reduction in the weight-to-volume ratio of the piston mechanism. Description of the Drawings

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

[0040] Figure 2 It is Figure 1 a partial enlarged view of area D in

[0041] Figure 3 It is Figure 1 a partial enlarged view of area E in

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

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

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

[0045] Figure 7 It is a sectional structural diagram of the two-stage rubber membrane sealed gas holder of the present utility model in the fourth rising stage;

[0046] Figure 8 It is a sectional structural diagram of the two-stage rubber membrane sealed gas holder of the present utility model in the fifth rising stage;

[0047] Figure 9 It is a sectional view of the first rubber membrane or the second rubber membrane of the two-stage rubber membrane sealed gas holder of the present utility model;

[0048] Figure 10 It is a top view of the first embodiment of the first rubber membrane or the second rubber membrane of the two-stage rubber membrane sealed gas holder of the present utility model;

[0049] Figure 11 It is a top view of the second embodiment of the first rubber membrane or the second rubber membrane of the two-stage rubber membrane sealed gas holder of the present utility model.

[0050] Description of the Reference Numerals in the Drawings:

[0051] 100, gas holder body;

[0052] 110, bottom plate of the gas holder;

[0053] 120, side plate of the gas holder; 121, ventilation hole in the side plate

[0054] 130. Cabinet top plate

[0055] 200. T-bar rack mechanism

[0056] 210. T-bar rack; 220. T-bar rack platform

[0057] 300. Piston mechanism

[0058] 310. Piston plate; 320. Piston support

[0059] 400. Sealing mechanism

[0060] 410. First sealing structure

[0061] 420. Second sealing structure; 430. First sealing connecting piece; 440. Second sealing connecting piece

[0062] 4001. Sealing film layer; 4002. Support rib layer; 4003. Support rib

[0063] 500. Column

[0064] 600. Wind-resistant truss and platform

[0065] 700. Relief system

[0066] 800. Leveling system

[0067] 900. Cabinet volume indicator

[0068] A. Upper gas chamber

[0069] B. Lower gas chamber Detailed implementation manners

[0070] In order to enable those skilled in the art of this technology to better understand the technical solutions in this utility model, the following will clearly and completely describe the technical solutions in the embodiments of this utility model in conjunction with the accompanying drawings in the embodiments of this utility model. Obviously, the described embodiments are only a part of the embodiments of this utility model, rather than all of the embodiments. Based on the embodiments in this utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of this utility model.

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

[0072] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which this utility model belongs. The terms used in the description of this utility model herein are only for the purpose of describing specific embodiments and are not intended to limit this utility model. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0073] As Figures 1 to 3 and Figure 8 shown, this utility model provides a two-stage rubber membrane sealed gas holder, including:

[0074] A cabinet body 100, the cabinet body 100 includes a cabinet bottom plate 110, and a cabinet side plate 120 and a column 500 erected along the periphery of the cabinet bottom plate 110. The column 500 is disposed outside the cabinet side plate 120;

[0075] A T-shaped bracket mechanism 200, the T-shaped bracket mechanism 200 includes a T-shaped bracket 210 and a T-shaped bracket platform 220. The T-shaped bracket platform 220 is annularly arranged inside the cabinet side plate 120. The T-shaped bracket 210 is annularly arranged along the circumference of the T-shaped bracket platform 220 and is movably connected to the top of the T-shaped bracket platform 220 in the vertical direction;

[0076] A piston mechanism 300, the piston mechanism 300 is movably disposed inside the T-shaped bracket mechanism 200 in the vertical direction. The piston mechanism 300 can abut against the top of the T-shaped bracket 210 by moving vertically upward to drive the T-shaped bracket 210 to move upward to the top of the cabinet body 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 utility model, under the premise of 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 accommodate the planned production of gas and the excess production of gas at the same time when the sealing mechanism 400 is lifted to the highest position, so that the two-stage rubber membrane sealed gas holder provided by the utility model 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 utility model 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 plate 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 plate 120. The T-frame 210 and the T-frame stand 220 are coaxially arranged, and the T-frame 210 is movably arranged in the cabinet 100 in 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 erection position height for the T-frame 210, so that the piston mechanism 300 can move upward a certain distance before abutting against the T-frame 210, so as to form an upper gas chamber A between the inner side of the T-frame 210 and the lower part of the piston mechanism 300.

[0082] In this embodiment, the piston mechanism 300 passes 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 and the T-frame 210 move upward together, it is used to form a lower gas chamber B between the lower part of the T-frame 210 and the inner side of the cabinet side plate 120.

[0083] In this embodiment, the first sealing structure 410 and the second sealing structure 420 are generally sealing structures made of rubber material. During the stretching or shrinking process of both 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 shrinking process of both 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 middle inner side of the cabinet side plate 120. In this 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 plate 120, so as to prevent gas from leaking through these gaps.

[0084] In this embodiment, the first sealing structure 410 is telescopically connected between the outside of the piston mechanism 300 and the inner side of the bottom of the T-shaped frame 210. That is, when the cabinet body 100 is in the initial state without storing gas, the bottom end of the piston mechanism 300 contacts 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-shaped frame 210. When gas is gradually injected into the interior of the cabinet body 100, the piston mechanism 300 rises, and the distance between the bottom of the piston mechanism 300 and the bottom of the T-shaped frame 210 in the vertical direction shortens, 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-shaped frame 210, the deformation of the first sealing structure 410 stops.

[0085] In this embodiment, the second sealing structure 420 is telescopically connected between the outside of the bottom of the T-shaped frame 210 and the inner side of the middle part of the cabinet side plate 120. That is, when the piston mechanism 300 does not abut against the upper end of the T-shaped frame 210, with reference to Figures 4 to 5 as shown, the second sealing structure 420 remains in an undeformed state; when gas is gradually injected into the interior of the cabinet body 100, with reference to Figures 6 to 7 as shown, the piston mechanism 300 abuts against the upper end of the T-shaped frame 210 and drives the T-shaped frame 210 to move upward. In the state where the T-shaped frame 210 gradually moves upward to the middle part of the cabinet side plate 120, the second sealing structure 420 is not in the maximum stretched state; with reference to Figure 8 as shown, in the state where the T-shaped frame 210 gradually moves from the middle part of the cabinet side plate 120 to the top of the cabinet body 100, the second sealing structure 420 continues to stretch. When the T-shaped frame 210 abuts against the top of the cabinet body 100, the second sealing structure 420 is in the maximum stretched state.

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

[0087] The piston mechanism 300 includes a piston plate 310 and a piston support 320. The piston plate 310 is coaxially arranged corresponding to the cabinet bottom plate 110, and the piston support 320 is sleeved around the periphery of the piston plate 310. The first sealing structure 410 is connected between the outside of the piston support 320 and the inner side of the bottom of the T-shaped frame 210.

[0088] The two-stage rubber film sealed gas holder provided by the present utility model is provided with a piston plate 310 and a piston support 320. Among them, the piston plate 310 can become a common top cover for the upper gas chamber A and the lower gas chamber B, and the piston support 320 can limit the stability of the piston mechanism 300 when moving up and down in the vertical direction, avoiding the problem that the piston plate 310 loses balance.

[0089] Specifically, in this embodiment, the piston plate 310 is generally a circular plate member, and the center of the piston plate 310 is concentric with the center of the cabinet bottom plate 110. The piston support 320 is generally an annular structure, and the piston support 320 is connected to the periphery of the piston plate 310. The piston support 320 extends vertically. In this embodiment, the first sealing structure 410 is connected to the outside of the piston support 320, and the piston support 320 is hermetically connected to the outside of the piston plate 310 to prevent gas from leaking out between the piston support 320 and the piston plate 310.

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

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

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

[0093] As Figure 9 and Figure 10 shown, in a specific embodiment,

[0094] Both the first sealing structure 410 and the second sealing structure 420 are composed of a sealing film layer 4001 and a support rib layer 4002. The support rib layer 4002 protrudes from the surface of the sealing film layer 4001. The support rib layer 4002 has a plurality of support ribs 4003, and each support rib 4003 extends in any direction on the surface of the sealing film layer 4001 and intersects with each other.

[0095] In this embodiment, the first sealing structure 410 is composed of a sealing film layer 4001 and a support rib layer 4002. In other embodiments, the second sealing structure 420 can also be composed of the sealing film layer 4001 and the support rib layer 4002, without specific limitations in this regard. In this embodiment, the sealing film layer 4001 is made of a deformable rubber material, and the support rib layer 4002 protrudes outward from one side of the sealing film layer 4001. The support rib layer 4002 has a plurality of support ribs 4003, that is, the support ribs 4003 extend along the surface of the sealing film layer 4001. The intersection of the plurality of support ribs 4003 can increase a plurality of stress concentration points, facilitating the dispersion of stress and increasing the structural deformation force that the sealing film layer 4001 can bear, and avoiding the occurrence of fracture, crack, and loss of sealing effect of the sealing film layer 4001 caused by the excessive tensile length of the sealing film layer 4001. In this embodiment, the plurality of support ribs 4003 intersect at the same point, forming a radiation structure similar to a "cross", and in other embodiments, the plurality of support ribs 4003 intersect at different points to form a reticular support rib layer 4002.

[0096] As Figure 9 and Figure 11 shown, in a specific embodiment, a plurality of support ribs 4003 intersect at the same point on the sealing film layer 4001, and the angle between any two adjacent support ribs 4003 is equal.

[0097] In this embodiment, a plurality of support rib layers 4002 intersect at the same point, that is, a plurality of support ribs 4003 extend radially from the same point to form a support rib layer 4002 similar to a "cross". The extension distances of the support ribs 4003 are similar, and the stress concentration points of the support ribs 4003 are located at the same point, so that each support rib 4003 can effectively share the tensile stress in its extension direction.

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

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

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

[0101] Among them, the first sealing connector 430 is disposed along the circumferential direction of the piston mechanism 300 at the bottom of the piston bracket 320, and the inner periphery of the first sealing structure 410 is hermetically connected to the outer side of the bottom of the piston bracket 320 through the first sealing connector 430;

[0102] The second sealing connector 440 is disposed along the circumferential direction of the T-shaped frame 210 at the bottom of the T-shaped frame 210, and the outer periphery of the first sealing structure 410 is hermetically connected to the inner side of the bottom of the T-shaped frame 210 through the second sealing connector 440;

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

[0104] For the two-stage rubber film sealed gas holder provided by the present utility model, by adopting the first sealing connector 430 and the second sealing connector 440, the first sealing structure 410 is hermetically fixed on the piston bracket 320 and the T-shaped frame 210. Among them, the first sealing connector 430 is disposed along the periphery of the outer side of the bottom of the piston bracket 320; the second sealing connector 440 is disposed along the periphery of the inner side of the bottom of the T-shaped frame. The inner periphery of the first sealing structure 410 is connected to the piston bracket 320 through the first sealing connector 430; the second sealing connector 440 is disposed along the inner circumference of the T-shaped frame 210, and the outer periphery of the first sealing structure 410 is hermetically connected to the inner side of the bottom of the T-shaped frame 210 through the second sealing connector 440. Sealing between the piston mechanism 300 and the T-shaped frame 210 is achieved, and gas leakage from the gap between the piston mechanism 300 and the T-shaped frame 210 is avoided.

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

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

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

[0108] The two-stage rubber membrane sealed gas holder provided by the present utility model uses a first sealing connector 430 and a second sealing connector 440 to respectively seal and fix the second sealing structure 420 on the T-shaped bracket 210 and the cabinet side plate 120, realizing the sealing between the cabinet side plate 120 and the T-shaped bracket 210 and preventing gas from escaping through the gap between the cabinet side plate 120 and the T-shaped bracket 210.

[0109] Specifically, in this embodiment, the first sealing connector 430 is arranged along the outer periphery of the T-shaped bracket 210. The second sealing structure 420 is generally in the shape of an annular sealing membrane structure and is telescopically arranged. The inner periphery of the second sealing structure 420 is hermetically connected to the outer peripheral side wall at the bottom of the T-shaped bracket 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 plate 120, and the outer periphery of the second sealing structure 420 is hermetically connected to the inner peripheral side wall of the cabinet side plate 120 through the second sealing connector 440.

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

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

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

[0113] For the two-stage rubber membrane sealed gas holder provided by the present utility model, since the height of the sealing mechanism 400 in the vertical direction inside the cabinet body 100 increases, a greater sealing elastic range is required for the sealing mechanism 400. The sealing gap for placing the sealing mechanism 400 determines the circumferences of the first sealing structure 410 and the second sealing structure 420. Therefore, setting the sealing gap between the piston mechanism 300 and the T-shaped bracket 210, and setting the sealing gap between the T-shaped bracket 210 and the cabinet side plate 120 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, 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-shaped bracket 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-shaped bracket 210 in the radial direction of the cabinet body 100 is 350 mm to 400 mm.

[0115] Specifically, in this embodiment, the sealing gap between the T-shaped 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-shaped 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] As Figure 1 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-diameter ratio of the two-stage rubber membrane sealed gas holder provided by the present invention is above 0.9. Among them, the height-diameter ratio is the ratio of the height of the cabinet side plate 120 to the diameter of the cabinet bottom plate 110. Compared with the height-diameter ratio of the existing rubber membrane sealed gas holder, it is further improved, which can increase the total volume of the upper gas chamber A and the lower gas chamber B, and enable the upper gas chamber A and the lower gas chamber B to accommodate the planned production volume of gas and the over-production volume of gas at the same time. It also makes the two-stage rubber membrane sealed gas holder provided by the present invention save site occupation, simplify pipeline layout, streamline management, etc., and has great advantages in the balance of technology and economy.

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

[0119] For the two-stage rubber membrane sealed gas holder provided by the present invention, when the piston mechanism 300 and the T-shaped frame 210 are abutted against the top of the cabinet body 100, the first sealing structure 410 is in a stretched state. Among them, the piston plate 310 of the piston mechanism 300, the piston support 320, the rubber membrane 411 of the first sealing structure 410, and the T-shaped frame 210 enclose to form the upper gas chamber A.

[0120] For the two-stage rubber membrane sealed gas holder provided by the present invention, when the piston mechanism 300 and the T-shaped frame 210 are abutted against the top of the cabinet body 100, the second sealing structure 420 is also in a stretched state. Among them, the bottom of the T-shaped frame 210, the second sealing structure 420, the cabinet side plate 120, and the cabinet bottom plate 110 enclose to form the lower gas chamber B. The lower end of the upper gas chamber A is connected to the upper end of the lower gas chamber B. When the height-diameter ratio of the two-stage rubber membrane sealed gas holder is above 0.9, the volumes of the upper gas chamber A and the lower gas chamber B together form a volume greater than 200,000 m 3 .

[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 in the steel plant production capacity transformation far cannot meet the demand for gas recovery.

[0122] As Figure 1 and Figure 2 shown, in a 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] For the two-stage rubber membrane sealed gas holder provided by the present utility model, in a specific embodiment, the diameter of the adopted cabinet bottom plate 110 is 68.8 m. To achieve a gas storage volume of 200,000 m 3 , the ratio of the height of the cabinet side plate 120 to the diameter of the cabinet bottom plate 110 is determined to be 0.94.

[0124] The two-stage rubber membrane sealed gas holder provided by the present utility model can build a rubber membrane sealed gas holder with a larger volume with less floor area, has a higher volume utilization rate, and at the same time, the safety distance between the rubber membrane sealed gas holder and the surrounding structures is more reasonable, saving more land resources.

[0125] In the specific design process, due to the change of the height-diameter ratio of the overall gas holder, it is necessary to carry out a model plan for the gas holder, and first conduct a finite element analysis on the overall gas holder.

[0126] Step S1: Establish the stiffness matrix. The analysis process based on the stiffness matrix is as follows:

[0127] (1) Structure identification, including node and element numbering, setting local coordinate systems and structural coordinate systems;

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

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

[0130] (4) Form the structural stiffness matrix and establish the structural stiffness equation;

[0131] (5) Solve the structural stiffness equation and calculate the unknown node displacements;

[0132] (6) Calculate the bar end forces and support reactions of each element;

[0133] (7) Check.

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

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

[0136] (1) Restrain the 3 translational degrees of freedom of the bottom of the upright columns of the cabinet body 100 and the upright column bottom nodes;

[0137] (2) Restrain the circumferential and radial displacements of the piston guide wheels, that is, assume that when the piston mechanism 300 is in the working state or the maintenance state, the piston mechanism 300 cannot move in its circumferential and radial directions;

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

[0139] (4) Restrain the vertical displacement of the contact point between the piston mechanism 300 and the support when the piston mechanism 300 is in the maintenance state.

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

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

[0142] Among them, the following contents need to be considered:

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

[0144] ② Consider the different situations of the piston mechanism 300 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 dead load is beneficial to the structural overturning of the gas holder;

[0146] (3) The load during the earthquake action:

[0147] Among them, the following contents need to be considered:

[0148] ① When not in production;

[0149] ② When in production.

[0150] Based on the above several situations, conduct a structural design check for a 200,000 m 3 gas holder, and design the best structural form based on the cabinet body 100, T-frame mechanism 200, piston mechanism 300, and sealing mechanism 400 of the above two-stage rubber film sealed gas holder.

[0151] On the outer side of the cabinet side plate 120 of the two-stage rubber film sealed gas holder provided by the present utility model, a plurality of upright columns 500 are vertically provided.

[0152] On the outer side of the cabinet side plate 120 of the two-stage rubber film sealed gas holder provided by the present utility model, a plurality of wind-resistant trusses and platforms 600 are provided at intervals in the vertical direction, and each wind-resistant truss and platform 600 is arranged around the outer side of the cabinet side plate 120.

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

[0154] The two - stage rubber - membrane - sealed gas holder provided by the present utility model also has a plurality of side - plate ventilation holes 121 opened in the upper part of the cabinet side plate 120. In the above - mentioned 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 In the embodiment, a plurality of ventilation - hole columns are formed along the height direction of the cabinet side plate 120, and a plurality of side - plate ventilation holes 121 are arranged at intervals along the circumferential direction of the cabinet side plate 120 in each ventilation - hole column.

[0155] The two - stage rubber - membrane - sealed gas holder provided by the present utility model also has a leveling system 800 and a tank - volume indicator 900.

[0156] Specifically, in an embodiment, after performing a finite - element analysis on the entire gas holder in step S1, it is also possible to compare the modeling calculations using GTSTRUDL and MSC / NASTRAN software and compare the calculation results, and reasonably optimize the steel - structure design scheme of the piston support 320 and the T - bracket 210, so that the overall steel consumption of the piston support 320 and the T - bracket 210 is only 13.25 kg / m 3 .

[0157] For the two - stage rubber - membrane - sealed gas holder provided by the present utility model, its sealing mechanism 400 is reasonable and effective, which can ensure the safe operation of the gas holder, and the relevant parameters for ensuring 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 main operation parameters such as the inclination of the gas - holder piston and the piston drift, etc., and the actual operation values can all be achieved below the allowable deviation values specified in the standards.

[0158] For the two - stage rubber - membrane - sealed gas holder provided by the present utility model, the piston mechanism 300 is reasonably designed, which can ensure the reduction of the overall steel consumption and reduce the ratio of the weight of the piston mechanism 300 to the volume.

[0159] In the above - mentioned specific embodiments, the purpose, technical solution, and beneficial effects of the present utility model are further described in detail. It should be understood that the above - mentioned are only specific embodiments of the present utility model, and do not limit the protection scope of the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A two-stage rubber membrane sealed gas holder, characterized in that, Comprising: A cabinet body, the cabinet body including a cabinet bottom plate and cabinet side plates erected along the periphery of the cabinet bottom plate; A T-shaped rack mechanism, the T-shaped rack mechanism including a T-shaped rack and a T-shaped rack bench, the T-shaped rack bench being annularly arranged inside the cabinet side plates, the T-shaped rack being annularly arranged along the circumference of the T-shaped rack bench and movably connected to the top of the T-shaped rack bench in the vertical direction; A piston mechanism, the piston mechanism movably penetrating through the inside of the T-shaped rack mechanism in the vertical direction, the piston mechanism being capable of abutting against the top of the T-shaped rack through upward movement in the vertical direction to drive the T-shaped rack to move upward to the top of the cabinet body; A sealing mechanism, including a first sealing structure and a second sealing structure, the first sealing structure being telescopically connected between the outside of the piston mechanism and the inner side of the bottom of the T-shaped rack, the second sealing structure being telescopically connected between the outside of the bottom of the T-shaped rack and the inner side of the middle of the cabinet side plate. When the piston mechanism and the T-shaped rack abut against the top of the cabinet body, an upper gas chamber is formed by enclosing the piston mechanism, the first sealing structure and the T-shaped rack, and a lower gas chamber is formed by enclosing the bottom of the T-shaped rack, the second sealing structure, the cabinet side plate and the cabinet bottom plate. 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 volume of gas and the over-production volume of gas.

2. The two-stage rubber membrane sealed gas holder according to claim 1, wherein The piston mechanism includes a piston plate and a piston bracket, the piston plate being coaxially corresponding to the cabinet bottom plate, the piston bracket being sleeved on the periphery of the piston plate, and the first sealing structure being connected between the outer side of the bottom of the piston bracket and the inner side of the bottom of the T-shaped rack.

3. The two-stage rubber membrane sealed gas holder according to claim 2, characterized in that, Both the first sealing structure and the second sealing structure are composed of a sealing film layer and a support rib layer, the support rib layer protruding from the surface of the sealing film layer, the support rib layer having a plurality of support ribs, and each of the support ribs extending and intersecting with each other in any direction on the surface of the sealing film layer.

4. The two-stage rubber membrane sealed gas holder according to claim 3, wherein, A plurality of the support ribs intersect at the same point on the sealing film layer, and the angle between any two adjacent support ribs is equal.

5. The two-stage rubber membrane sealed gas holder according to claim 2, wherein The sealing mechanism further includes a first sealing connector and a second sealing connector, wherein, the first sealing connector is arranged along the circumference of the piston mechanism at the bottom of the piston bracket, and the inner periphery of the first sealing structure is hermetically connected to the outer side of the bottom of the piston bracket through the first sealing connector; The second sealing connector is arranged along the circumference of the T-shaped rack at the bottom of the T-shaped rack, and the outer periphery of the first sealing structure is hermetically connected to the inner side of the bottom of the T-shaped rack through the second sealing connector; The first sealing connector is a sealing channel steel, and the second sealing connector is a sealing angle steel.

6. The two-stage rubber membrane sealed gas holder according to claim 5, characterized in that, The first sealing connection member is disposed at the bottom of the T-shaped frame along the circumferential direction of the T-shaped frame, the second sealing connection member is disposed in the middle of the cabinet side plate along the circumferential direction of the cabinet side plate, the inner periphery of the second sealing structure is hermetically connected to the outer side of the bottom of the T-shaped frame through the first sealing connection member, and the outer periphery of the second sealing structure is hermetically connected to the inner side of the middle of the cabinet side plate through the second sealing connection member.

7. The two-stage rubber membrane sealed gas holder according to claim 1, wherein The sealing gap between the piston mechanism and the T-shaped frame is 350 mm to 400 mm, and the sealing gap between the T-shaped 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, wherein 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 connected up and down is greater than 200,000 m 3 .

10. The two-stage rubber membrane sealed gasholder according to claim 9, characterized in that, 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 .

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