A damage-proof structure of sealing rubber for a coal gas holder

Abstract

The utility model discloses a kind of coal gas tank sealing rubber anti-break structure, applied in coal gas tank sealing technical field, including cabinet, T table slidably connected in the inside of cabinet and piston slidably connected in the inside of T table, first rubber membrane is provided between the cabinet and T table, second rubber membrane is provided between T table and piston, the inside of the cabinet and the surface of T table are all equipped with the guide sleeve of opposite direction, the inside of T table is equipped with a plurality of equidistantly arranged first guide plate;The utility model passes through the guide sleeve of opposite direction of cabinet and T table surface, and the first guide plate in T table, the second guide plate on the surface of piston, jointly act to ensure that the motion track stability of first rubber membrane and second rubber membrane is rolled up and unfolded in the lifting process of T table and piston, avoid first rubber membrane and second rubber membrane excessive scratch etc.

Description

Technical Field

[0001] This utility model belongs to the field of gas holder sealing technology, and specifically relates to a gas holder sealing rubber anti-damage structure. Background Technology

[0002] During the operation of a gas holder, the sealing rubber is a key component for achieving gas storage sealing. However, there are still some problems with the sealing rubber of existing gas holders during use.

[0003] During the lifting and lowering process of the T-shaped platform and piston in a traditional gas holder, the sealing rubber rubs against the cabinet, T-shaped platform, piston, and other components, causing rapid wear marks to appear on the surface. As the operating time increases, the wear gradually intensifies, eventually leading to rubber tearing and loss of sealing function. Furthermore, gas contains corrosive components such as tar and hydrogen sulfide. The material formulation and structural design of traditional sealing rubber are insufficient to resist these corrosive media. During long-term contact, corrosive components will chemically react with the rubber, damaging its molecular structure. The rubber will gradually age, manifesting as hardening, brittleness, softening, swelling, and delamination, thus failing to effectively block gas and affecting the sealing effect of the gas holder. Utility Model Content

[0004] The purpose of this utility model is to provide a gas holder sealing rubber anti-damage structure, which has the advantages of being anti-friction and anti-aging.

[0005] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a gas holder sealing rubber anti-damage structure, comprising a cabinet body, a T-shaped platform slidably connected to the inside of the cabinet body, and a piston slidably connected to the inside of the T-shaped platform. A first rubber membrane is provided between the cabinet body and the T-shaped platform, and a second rubber membrane is provided between the T-shaped platform and the piston. Guide sleeves with opposite directions are installed inside the cabinet body and on the surface of the T-shaped platform. Multiple first guide plates arranged at equal intervals are installed inside the T-shaped platform, and multiple second guide plates arranged at equal intervals are installed on the surface of the piston. A retaining ring for use with the second rubber membrane is provided between the T-shaped platform and the piston. Multiple first contact strips arranged in annular arrangement at equal intervals are bonded to the inner and outer sides of the first rubber membrane, and multiple second contact strips arranged in annular arrangement at equal intervals are bonded to the inner and outer sides of the second rubber membrane. Anti-corrosion films are bonded to the inner and outer sides of the first rubber membrane and the inner and outer sides of the second rubber membrane.

[0006] By adopting the above technical solution: This utility model, through the guide sleeves with opposite directions on the surfaces of the cabinet and the T-stage, as well as the first guide plate inside the T-stage and the second guide plate on the piston surface, works together to ensure the stability of the movement trajectory of the first and second rubber membranes during the lifting and lowering process of the T-stage and the piston, avoiding excessive scratching of the first and second rubber membranes, and reducing the wear risk of the first and second rubber membranes. Through the design of the first and second contact strips, the contact area between the first and second rubber membranes and the mating parts is increased, the frictional stress is dispersed, and the wear of the first and second rubber membranes caused by friction is effectively reduced. The setting of the anti-corrosion film can block the contact between corrosive components such as tar and hydrogen sulfide in the gas and the rubber, delay the aging of the rubber, and greatly improve the corrosion resistance of the sealing rubber, thereby extending its service life.

[0007] The present invention is further configured such that a first fixing seat is detachably connected to the bottom of the T-stage, and the first fixing seat fixes one end of the first rubber membrane and the second rubber membrane to the bottom of the T-stage.

[0008] The above technical solution involves a first fixing seat that securely attaches one end of the first and second rubber membranes to the bottom of the T-stage, ensuring the stability of the connection between the rubber membranes and the T-stage. This prevents the rubber membranes from falling off or loosening during operation of the gas holder due to insecure fixing, thus preventing damage or sealing failure caused by connection problems. The detachable connection allows for easy removal of the first fixing seat when the rubber membranes need to be replaced or maintained, improving the maintenance convenience of the gas holder sealing system and reducing maintenance costs and time.

[0009] The present invention is further configured such that the side wall of the cabinet and the bottom of the piston are detachably connected to a second fixing seat, the other end of the first rubber membrane is fixedly fastened to the side wall of the cabinet by the second fixing seat, and the other end of the second rubber membrane is fixedly fastened to the bottom of the piston by the second fixing seat.

[0010] The above technical solution involves firmly snapping the other ends of the first and second rubber membranes together and locking them to the side wall of the cabinet and the bottom of the piston, respectively. This ensures the reliability of the connection between the two sealing structures and prevents the rubber membranes from shifting, being pulled, or failing to seal due to loosening during the operation of the gas holder. The detachable design makes subsequent replacement and maintenance of the rubber membranes more convenient, without requiring significant modifications to the main structure of the cabinet or piston, thus reducing maintenance difficulty and cost.

[0011] The present invention is further configured such that the bottom of the first fixing base is equipped with a plurality of brackets arranged in a ring at equal intervals, and the other end of the brackets is fixedly connected to a retaining ring.

[0012] The above technical solution employs multiple equally spaced ring-shaped supports in conjunction with retaining rings to form a ring-shaped support structure. This structure provides stable support for the second rubber diaphragm, preventing excessive deformation or collapse during changes in gas holder pressure or piston movement. The uniform distribution of the supports disperses the stress on the second rubber diaphragm to multiple support points, reducing local stress concentration and lowering the risk of tearing or damage to the rubber diaphragm due to uneven stress, while also ensuring the stability of the seal.

[0013] The present invention is further configured such that a first annular limiting block is fixedly connected to the side wall of the cabinet, and the first annular limiting block is used in conjunction with the T-stage.

[0014] The above technical solution involves mechanically limiting the lifting stroke of the T-stage to prevent it from exceeding the design range due to excessive rising or falling, thus avoiding excessive stretching or compression of the first rubber membrane. In conjunction with the external guide structure, the movement trajectory of the T-stage is further constrained, reducing T-stage offset and shaking, reducing abnormal friction with the sealing rubber, indirectly protecting the rubber membrane from damage, and ensuring the sealing performance of the gas holder.

[0015] The present invention is further configured such that a second annular limiting block is fixedly connected to the inner wall of the T-stage, and the second annular limiting block is used in conjunction with the piston.

[0016] The above technical solution is adopted to precisely limit the piston's lifting stroke in conjunction with an external guide mechanism, preventing excessive piston displacement beyond the design range, avoiding excessive stretching or compression damage to the second rubber diaphragm, and ensuring the stability of the sealing structure.

[0017] In summary, this utility model has the following beneficial effects: 1. This utility model, through the guide sleeves with opposite directions on the cabinet and T-stage surfaces, as well as the first guide plate inside the T-stage and the second guide plate on the piston surface, works together to ensure the stability of the movement trajectory of the first and second rubber membranes during the lifting and lowering process of the T-stage and piston, avoiding excessive scratching of the first and second rubber membranes, and reducing the wear risk of the first and second rubber membranes. 2. By designing the first and second contact strips, this utility model increases the contact area between the first and second rubber films and the mating components, disperses frictional stress, effectively reduces wear caused by friction on the first and second rubber films, and the anti-corrosion film can block the contact between corrosive components such as tar and hydrogen sulfide in the gas and the rubber, delay rubber aging, and greatly improve the corrosion resistance of the sealing rubber, thereby extending its service life. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is the utility model Figure 1 Enlarged view of point A in the middle; Figure 3 This is a partial structural connection sectional view of this utility model.

[0019] Reference numerals in the attached drawings: 1. Cabinet; 2. T-stage; 3. Piston; 4. First rubber membrane; 5. Second rubber membrane; 6. Guide sleeve; 7. First guide plate; 8. Second guide plate; 9. Snap ring; 10. First contact strip; 11. Second contact strip; 12. Anti-corrosion film; 13. First fixing seat; 14. Second fixing seat; 15. Bracket; 16. First annular limiting block; 17. Second annular limiting block. Detailed Implementation

[0020] The present invention will be further described in detail below with reference to the accompanying drawings.

[0021] Example 1: refer to Figure 1 and Figure 2 A gas holder sealing rubber anti-damage structure includes a cabinet body 1, a T-shaped platform 2 slidably connected inside the cabinet body 1, and a piston 3 slidably connected inside the T-shaped platform 2. A first rubber membrane 4 is provided between the cabinet body 1 and the T-shaped platform 2, and a second rubber membrane 5 is provided between the T-shaped platform 2 and the piston 3. Guide sleeves 6 with opposite directions are installed inside the cabinet body 1 and on the surface of the T-shaped platform 2. Multiple first guide plates 7 are installed inside the T-shaped platform 2, and multiple second guide plates 8 are installed on the surface of the piston 3. A retaining ring 9 that cooperates with the second rubber membrane 5 is provided between the T-shaped platform 2 and the piston 3. Through the guide sleeves 6 with opposite directions on the surfaces of the cabinet body 1 and the T-shaped platform 2, as well as the first guide plates 7 inside the T-shaped platform 2 and the second guide plates 8 on the surface of the piston 3, the movement trajectory stability of the first rubber membrane 4 and the second rubber membrane 5 during the lifting and lowering process of the T-shaped platform 2 and the piston 3 is ensured, avoiding excessive scratching of the first rubber membrane 4 and the second rubber membrane 5, and reducing the wear risk of the first rubber membrane 4 and the second rubber membrane 5.

[0022] refer to Figure 1 and Figure 2The bottom of the T-stage 2 is detachably connected to a first fixing seat 13. The first fixing seat 13 securely fastens one end of the first rubber membrane 4 and the second rubber membrane 5 to the bottom of the T-stage 2. By setting the first fixing seat 13, the first fixing seat 13 firmly fastens one end of the first rubber membrane 4 and the second rubber membrane 5 to the bottom of the T-stage 2, ensuring the stability of the connection between the rubber membrane and the T-stage 2. This prevents the rubber membrane from falling off or loosening during the operation of the gas holder due to insecure fixing, thereby preventing damage or sealing failure of the rubber membrane due to connection problems. The detachable connection method allows for easy removal of the first fixing seat 13 when the rubber membrane needs to be replaced or maintained, improving the maintenance convenience of the gas holder sealing system and reducing maintenance costs and time.

[0023] refer to Figure 1 and Figure 2 The side wall of the cabinet 1 and the bottom of the piston 3 are detachably connected to a second fixing seat 14. The other end of the first rubber diaphragm 4 is fixedly snapped to the side wall of the cabinet 1 through the second fixing seat 14, and the other end of the second rubber diaphragm 5 is fixedly snapped to the bottom of the piston 3 through the second fixing seat 14. By setting the second fixing seat 14, the other ends of the first rubber diaphragm 4 and the second rubber diaphragm 5 are firmly snapped together and locked to the side wall of the cabinet 1 and the bottom of the piston 3 respectively, ensuring the reliability of the connection of the two sealing structures and preventing the rubber diaphragms from shifting, being pulled or failing to seal due to loose fixing during the operation of the gas holder. The detachable design makes the subsequent replacement and maintenance of the rubber diaphragms more convenient, without the need for major modifications to the main structure of the cabinet 1 or the piston 3, reducing maintenance difficulty and cost.

[0024] refer to Figure 1 The bottom of the first fixed seat 13 is equipped with multiple equally spaced ring-shaped brackets 15. The other end of the brackets 15 is fixedly connected to the retaining ring 9. By setting the brackets 15, the multiple equally spaced ring-shaped brackets 15, together with the retaining ring 9, form a ring support structure, which plays a stable supporting role for the second rubber diaphragm 5, preventing it from excessively deforming or collapsing when the gas holder pressure changes or the piston 3 moves. The uniform distribution of the brackets 15 can disperse the stress on the second rubber diaphragm 5 to multiple support points, reduce local stress concentration, reduce the risk of tearing and damage to the rubber diaphragm due to uneven stress, and at the same time ensure the stability of the seal.

[0025] refer to Figure 1 and Figure 2A first annular limiting block 16 is fixedly connected to the side wall of the cabinet 1. The first annular limiting block 16 works in conjunction with the T-stage 2. By setting the first annular limiting block 16, the lifting stroke of the T-stage 2 is mechanically limited to prevent the T-stage 2 from exceeding the design range due to excessive rising or falling, and to avoid excessive stretching or compression of the first rubber membrane 4. In conjunction with the external guide structure, the movement trajectory of the T-stage 2 is further constrained, reducing the deviation and shaking of the T-stage 2, reducing abnormal friction with the sealing rubber, indirectly protecting the rubber membrane from damage, and ensuring the sealing performance of the gas holder.

[0026] refer to Figure 1 and Figure 2 A second annular limiting block 17 is fixedly connected to the inner wall of the T-stage 2. The second annular limiting block 17 works in conjunction with the piston 3. By setting the second annular limiting block 17, the piston 3's lifting stroke is precisely limited in conjunction with the external guide mechanism to prevent the piston 3 from excessively displacing beyond the design range, avoid excessive stretching or compression damage to the second rubber membrane 5, and ensure the stability of the sealing structure.

[0027] Example 2: refer to Figure 1 , Figure 2 and Figure 3 A gas holder sealing rubber anti-damage structure includes a cabinet body 1, a T-shaped platform 2 slidably connected inside the cabinet body 1, and a piston 3 slidably connected inside the T-shaped platform 2. A first rubber membrane 4 is provided between the cabinet body 1 and the T-shaped platform 2, and a second rubber membrane 5 is provided between the T-shaped platform 2 and the piston 3. Guide sleeves 6 facing opposite directions are installed inside the cabinet body 1 and on the surface of the T-shaped platform 2. Multiple first guide plates 7 are installed inside the T-shaped platform 2 at equal intervals, and multiple second guide plates 8 are installed on the surface of the piston 3 at equal intervals. A retaining ring 9 that cooperates with the second rubber membrane 5 is provided between the T-shaped platform 2 and the piston 3. Multiple first contact strips 1 arranged in annular patterns at equal intervals are adhered to both the inner and outer sides of the first rubber membrane 4. The inner and outer sides of the second rubber membrane 5 are each bonded with a plurality of equally spaced annularly arranged second contact strips 11. The inner and outer sides of the first rubber membrane 4 and the inner and outer sides of the second rubber membrane 5 are each bonded with an anti-corrosion membrane 12. Through the design of the first contact strips 10 and the second contact strips 11, the contact area between the first rubber membrane 4 and the second rubber membrane 5 and the mating parts is increased, the frictional stress is dispersed, and the wear caused by friction of the first rubber membrane 4 and the second rubber membrane 5 is effectively reduced. The anti-corrosion membrane 12 can block the contact between corrosive components such as tar and hydrogen sulfide in the gas and the rubber, delay the aging of the rubber, and greatly improve the corrosion resistance of the sealing rubber, thereby extending its service life.

[0028] Brief description of the operation: When gas is introduced into the gas holder, the internal pressure increases, pushing piston 3 upward. Platform 2 rises and falls synchronously with the pressure change. When gas is discharged, the pressure decreases, and piston 3 and platform 2 descend along a preset trajectory. During this process, the first rubber diaphragm 4 and the second rubber diaphragm 5 form two sealing barriers, isolating the gas from the outside environment and ensuring sealing performance. When the first rubber diaphragm 4 and the second rubber diaphragm 5 are rolled up, the first contact strip 10 on the surface of the cabinet 1 and platform 2 contacts the guide sleeve 6. The first rubber diaphragm 4 does not contact the guide sleeve, and the second contact strip 10 on the first rubber diaphragm 4... The first guide plate 7 and the second guide plate 8 are in contact, while the second rubber diaphragm 5 is not in contact with the first guide plate 7 and the second guide plate 8. This reduces the contact area with the mating parts, disperses frictional stress, and reduces wear during movement. The outer anti-corrosion film 12 blocks corrosive components such as tar and hydrogen sulfide in the gas, delaying rubber aging. The annular bracket 15 at the bottom of the first fixed seat 13 cooperates with the retaining ring 9 to provide uniform support for the second rubber diaphragm 5, dispersing the pressure it bears and avoiding local stress concentration or excessive deformation. The sealed protective structure enhances the wear resistance and corrosion resistance of the rubber diaphragm, ensuring the long-term reliable operation of the gas holder.

[0029] It should be noted that parts have a lifespan and can be replaced during regular maintenance when they no longer meet performance requirements. Deterioration in performance due to prolonged use of parts is not a design defect of this application.

[0030] This specific embodiment is merely an explanation of the present utility model and is not intended to limit the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but as long as they are within the scope of the claims of the present utility model, they are protected by patent law.

Claims

1. A gas holder sealing rubber anti-damage structure, comprising a cabinet body (1), a T-shaped platform (2) slidably connected inside the cabinet body (1), and a piston (3) slidably connected inside the T-shaped platform (2), characterized in that: A first rubber membrane (4) is provided between the cabinet (1) and the T-stage (2), and a second rubber membrane (5) is provided between the T-stage (2) and the piston (3). The interior of the cabinet (1) and the surface of the T-stage (2) are equipped with guide sleeves (6) facing opposite directions. The interior of the T-stage (2) is equipped with multiple first guide plates (7) arranged at equal intervals, and the surface of the piston (3) is equipped with multiple second guide plates (8) arranged at equal intervals. A retaining ring (9) is provided between the T-stage (2) and the piston (3) to cooperate with the second rubber membrane (5). Multiple first contact strips (10) arranged in annular pattern are bonded to the inner and outer sides of the first rubber membrane (4), and multiple second contact strips (11) arranged in annular pattern are bonded to the inner and outer sides of the second rubber membrane (5). An anti-corrosion film (12) is bonded to the inner and outer sides of the first rubber membrane (4) and the inner and outer sides of the second rubber membrane (5).

2. The gas holder sealing rubber anti-damage structure according to claim 1, characterized in that: The bottom of the T-stage (2) is detachably connected to a first fixing seat (13), which fixes one end of the first rubber membrane (4) and the second rubber membrane (5) to the bottom of the T-stage (2).

3. The gas holder sealing rubber anti-damage structure according to claim 1, characterized in that: The side wall of the cabinet (1) and the bottom of the piston (3) are detachably connected to a second fixing seat (14). The other end of the first rubber membrane (4) is fixedly attached to the side wall of the cabinet (1) through the second fixing seat (14), and the other end of the second rubber membrane (5) is fixedly attached to the bottom of the piston (3) through the second fixing seat (14).

4. The gas holder sealing rubber anti-damage structure according to claim 2, characterized in that: The bottom of the first fixed base (13) is equipped with a plurality of equally spaced ring-shaped brackets (15), and the other end of the brackets (15) is fixedly connected to the retaining ring (9).

5. The gas holder sealing rubber anti-damage structure according to claim 1, characterized in that: A first annular limiting block (16) is fixedly connected to the side wall of the cabinet (1), and the first annular limiting block (16) is used in conjunction with the T-stage (2).

6. The gas holder sealing rubber anti-damage structure according to claim 1, characterized in that: A second annular limiting block (17) is fixedly connected to the inner wall of the T-stage (2), and the second annular limiting block (17) is used in conjunction with the piston (3).

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