Sealing device for blocking leakage of bottom plate of dry gas holder

Abstract

The utility model relates to the technical field of sealing devices, and provides a sealing device for blocking leakage of a bottom plate of a dry gas holder, the sealing device comprises a sealing main body, the sealing main body comprises a plurality of sealing elements, the plurality of sealing elements are mutually spliced to form an annular structure, and the sealing elements are made of flexible materials. A tenon is arranged at one end of each sealing piece, a mortise is formed in the other end of each sealing piece, and a plurality of adjacent sealing pieces are connected in an interference fit mode through the tenons and the mortises. The sealing body has the advantages of being simple in structure and easy to install, the joint of the bottom plate of the dry type gas holder and the gas holder foundation can be effectively sealed after the multiple sealing pieces are spliced into the annular structure, and due to the fact that the tenon-and-mortise structure is adopted, the stability of the sealing body is improved, and meanwhile the sealing effect of the sealing body is guaranteed.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of sealing devices, in particular to a sealing device for plugging leakage of a dry-type coal gas holder bottom plate. BACKGROUND

[0002] The dry-type coal gas holder is an important equipment for storing, mixing and balancing the pressure of the pipe network, and at present, there are mainly three types of holders in China, namely, polygonal thin oil sealing coal gas holder, cylindrical thin oil sealing coal gas holder and rubber membrane sealing coal gas holder, which are mainly composed of side plates, top plates, bottom plates and pistons moving up and down, and the functions of gas inlet and outlet of the coal gas holder are realized by the rising and falling of the pistons.

[0003] Based on the design specification of the dry-type coal gas holder, there is a gap between the dry-type coal gas holder and the gas holder foundation, and a gutter slope and asphalt seal are arranged at the joint of the coal gas holder bottom plate and the gas holder foundation to ensure the sealing and stability of the coal gas holder, and due to the thermal expansion and contraction of the bottom plate steel structure and the influence of the gutter slope material, there is a certain gap between the coal gas holder bottom plate and the gutter slope and asphalt seal of the gas holder foundation.

[0004] At present, when the coal gas holder bottom plate and the gas holder foundation appear oil seepage, water seepage and gas leakage during operation, the general treatment method is to shut down the coal gas holder and replace it by purging, after the bottom plate is completely cleaned, all the welds and bottom plates are checked, and after treatment, the tightness is checked, and if there is no leakage, it is qualified, if the oil seepage, water seepage and gas leakage of the bottom plate are relatively slight, the combination of the bottom plate and the gutter slope is often temporarily plugged and treated by coating and wrapping glass fiber, due to the large amount of bottom plate welds, difficult leakage point investigation and incomplete external coating treatment, it is difficult to treat the bottom plate leakage hidden danger of the dry-type coal gas holder after long-term operation, and the labor intensity of personnel is increased. Content of the utility model

[0005] The purpose of the embodiment of the present application is to provide a sealing device for plugging leakage of a dry-type coal gas holder bottom plate, which effectively seals the joint between the coal gas holder bottom plate and the gas holder foundation, reduces the generation of leakage sources and reduces the labor intensity of personnel.

[0006] The embodiment of the present application provides a sealing device for plugging leakage of a dry-type coal gas holder bottom plate, which adopts the following technical scheme:

[0007] A sealing device for plugging leakage of a dry-type coal gas holder bottom plate, comprising a sealing main body, the sealing main body comprises a plurality of sealing pieces, the plurality of sealing pieces are mutually spliced to form a ring structure, the sealing pieces are made of flexible material, one end of the sealing piece is provided with a tenon, the other end of the sealing piece is provided with a mortise, and a plurality of adjacent sealing pieces are connected through interference fit of the tenon and the mortise.

[0008] Preferably, at least one of the sealing members is provided with a through hole, and a drain pipe is arranged at the through hole, and a valve is arranged on the drain pipe.

[0009] Preferably, at least one expansion strip is arranged at each of the upper end and the lower end of the sealing member, and the expansion strip is arranged along the length direction of the sealing member.

[0010] Preferably, the upper end of the sealing member is provided with an inclined surface, and the inclined surface is located at the end of the sealing member close to the dry gas holder.

[0011] Preferably, the two ends of the sealing member are solid structures, the through hole is arranged on the solid structure, and the middle part of the sealing member is a Z-shaped structure.

[0012] Preferably, the Z-shaped structure is provided with a sandwich layer, and at least one layer of cloth is arranged in the sandwich layer.

[0013] Preferably, the middle part of the cloth is formed by crossing and weaving a plurality of ropes.

[0014] Preferably, the two ropes crossing each other are perpendicular to each other.

[0015] Preferably, the inclination angle of the inclined surface at the upper end of the sealing member is 1-5°.

[0016] Preferably, the tenon is a dovetail or a butterfly tenon.

[0017] Compared with the prior art, the application has the following beneficial effects:

[0018] The application has the characteristics of simple structure and easy installation, and after a plurality of sealing members are spliced into a ring-shaped structure, the joint between the bottom plate of the dry gas holder and the gas holder foundation can be effectively sealed. Due to the use of the mortise and tenon structure, the stability of the sealing body is improved, and the sealing effect of the sealing body is also ensured. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the application, the following will briefly introduce the drawings needed to be used in the embodiments. It should be understood that the following drawings only show some embodiments of the application, and therefore should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can also be obtained without creative labor.

[0020] Figure 1 Part structure diagram of the sealing body in some embodiments of the application;

[0021] Figure 2 Top view of the sealing body in some embodiments of the application;

[0022] Figure 3Structure schematic view of the sealing element in some embodiments of the utility model;

[0023] Figure 4 Sectional view of the Z-shaped structure in some embodiments of the utility model;

[0024] Figure 5 Structure schematic view of the middle part of the cloth clamp in some embodiments of the utility model.

[0025] The reference signs are respectively:

[0026] 1, sealing main body;2, sealing element;3, tenon;4, mortise;5, through hole;6, inspection pipe;7, valve;8, expansion strip;9, solid structure;10, Z-shaped structure;11, interlayer;12, cloth clamp;13, string. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are some of the embodiments of the present application, rather than all the embodiments of the present application. The components of the embodiments of the present application described and shown in the drawings herein can be arranged and designed in various different configurations.

[0028] Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed present application, but only represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present application.

[0029] It should be noted that: similar signs and letters represent similar items in the following drawings, therefore, once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings.

[0030] In the description of the present application, it should be noted that the orientation or position relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like is based on the orientation or position relationship shown in the drawings, or the orientation or position relationship commonly placed when the product of the application is used, and is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, therefore, it cannot be understood as a limitation on the present application. In addition, the terms "first", "second", "third" and the like are only used for differentiation in description, and cannot be understood as indicating or implying relative importance.

[0031] In addition, the terms "horizontal", "vertical", "overhanging" and the like do not mean that the components must be absolutely horizontal or overhanging, but can be slightly inclined. As "horizontal" merely means that it is more horizontal relative to "vertical", it does not mean that the structure must be completely horizontal, but can be slightly inclined.

[0032] In the description of the present application, it should be further pointed out that, unless otherwise explicitly specified and limited, the terms "arrangement", "installation", "connection", "connection" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication inside two elements. For those skilled in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances.

[0033] Embodiments

[0034] As shown in Figures 1-5 The sealing device for sealing the leakage of the dry-type coal gas tank bottom plate described in the embodiments of the present application comprises a sealing body 1, the sealing body 1 comprises a plurality of sealing pieces 2, the plurality of sealing pieces 2 are spliced to form a ring structure, the sealing piece 2 is made of flexible material, and in specific implementation, the sealing piece 2 is made of rubber material, one end of the sealing piece 2 is provided with a tenon 3, the other end of the sealing piece 2 is provided with a mortise 4, and a plurality of adjacent sealing pieces 2 are connected through interference fit of the tenon 3 and the mortise 4.

[0035] In use, one sealing piece 2 is pressed into the gap between the dry-type coal gas tank bottom plate and the gas tank foundation, then the next sealing piece 2 is connected through the insertion type installation of the mortise and tenon structure, and then the sealing piece 2 is pressed into the gap between the dry-type coal gas tank bottom plate and the gas tank foundation, until the closed loop installation is completed, the plurality of sealing pieces 2 are spliced to form a ring structure, and then the joint between the dry-type coal gas tank bottom plate and the gas tank foundation can be effectively sealed, realizing the online treatment of the leakage of the dry-type coal gas tank bottom plate. Since the mortise and tenon structure is adopted, the stability of the sealing body 1 is improved while the sealing effect of the sealing body 1 is ensured.

[0036] In the embodiment, at least one sealing element 2 is provided with a through hole 5. In specific implementation, 3-6 sealing elements 2 are provided with through holes 5. The through holes 5 can be arranged on the annular sealing body 1 according to requirements. The through holes 5 can be arranged close to the tenon 3 or close to the mortise 4. The through holes 5 are provided with a drain pipe 6. The drain pipe 6 is provided with a valve 7. The pressure of the gas tank used in China is relatively low. For example, the pressure of the rubber membrane type gas tank is less than 3.5 KPa. The pressure of the thin oil sealing type gas tank is not greater than 15 KPa. The form of installing the drain pipe 6 at the through hole 5 can be that the inserted drain pipe 6 is interference-fitted with the sealing body 1 and is installed by gluing. Alternatively, the inserted drain pipe 6 can be locked and sealed by gluing on the inner and outer sides of the sealing body 1.

[0037] In use, after the sealing body 1 operates for a period of time, the valve 7 is opened. Then, the leakage condition of the joint of the dry-type gas tank bottom plate and the gas tank foundation can be detected through the drain pipe 6. The purpose of monitoring and checking the leakage condition of the bottom space on the basis of reducing the leakage source is achieved. Therefore, the labor intensity of personnel is reduced.

[0038] In the embodiment, the upper and lower ends of the sealing element 2 are each provided with at least one expansion strip 8. The expansion strip 8 is arranged along the length direction of the sealing element 2. In specific implementation, the number of the expansion strips 8 at the upper and lower ends of the sealing element 2 is 1-3. When the sealing element 2 is installed, the dry-type gas tank bottom plate and the gas tank foundation can extrude the expansion strip 8. The sealing effect is improved. The resistance is increased. The stability and the sealing effect of the sealing body 1 are ensured. When the expansion strips 8 at the upper and lower ends of the sealing element 2 are each provided with more than one, multi-stage sealing can be achieved. The sealing effect is improved. The stability of the sealing body 1 is further improved.

[0039] In the embodiment, the upper end of the sealing element 2 has an inclined surface. The inclined surface is located at the end of the sealing element 2 close to the dry-type gas tank. The structure can facilitate the pressing of the sealing element 2 into the gap of the joint of the dry-type gas tank bottom plate and the gas tank foundation.

[0040] In the embodiment, the two ends of the sealing element 2 are solid structures 9. The through hole 5 is arranged on the solid structure 9. The middle part of the sealing element 2 is a Z-shaped structure 10. The Z-shaped structure 10 can compensate for the displacement change of the sealing body 1 in the radial direction of the dry-type gas tank.

[0041] In the embodiment, the Z-shaped structure 10 is provided with a sandwich layer 11. At least one layer of cloth 12 is arranged in the sandwich layer 11. In specific implementation, the cloth 12 is provided with 1-3 layers. The arrangement of the cloth 12 is beneficial to improve the deformation and strength of the sealing body 1 during installation and use.

[0042] In the embodiment, the middle part of the cloth 12 is formed by the cross-weaving of a plurality of ropes 13.

[0043] In this embodiment, the two strings 13 cross each other perpendicularly.

[0044] In this embodiment, the angle of the upper inclined surface of the seal 2 is 1-5°.

[0045] In this embodiment, the tenon 3 is a dovetail or a butterfly tenon.

[0046] The above only is the preferred embodiment of the present application, and is not used to limit the present application, for the person skilled in the art, the present application can have various changes and changes. Any modification, equivalent replacement, improvement, etc. within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims

1. A sealing device for sealing leaks in the bottom plate of a dry gas holder, characterized in that: The device includes a sealing body, which comprises several sealing elements. These sealing elements are spliced ​​together to form a ring structure. The sealing elements are made of flexible material. One end of each sealing element has a tenon, and the other end has a mortise. Several adjacent sealing elements are connected by an interference fit between the tenon and the mortise.

2. A sealing device for sealing leaks in the bottom plate of a dry gas holder according to claim 1, characterized in that: At least one of the sealing elements is provided with a through hole, a drain pipe is provided at the through hole, and a valve is provided on the drain pipe.

3. A sealing device for sealing leaks in the bottom plate of a dry gas holder according to claim 1, characterized in that: At least one expansion strip is provided at both the upper and lower ends of the seal, and the expansion strip is arranged along the length of the seal.

4. A sealing device for sealing leaks in the bottom plate of a dry gas holder according to claim 3, characterized in that: The upper end of the seal has an inclined surface, which is located at the end of the seal near the dry gas holder.

5. A sealing device for sealing leaks in the bottom plate of a dry gas holder according to claim 2, characterized in that: The two ends of the seal are solid structures, the through hole is provided on the solid structure, and the middle part of the seal is a Z-shaped structure.

6. A sealing device for sealing leaks in the bottom plate of a dry gas holder according to claim 5, characterized in that: The Z-shaped structure is provided with a sandwich layer, and at least one layer of fabric is provided inside the sandwich layer.

7. A sealing device for sealing leaks in the bottom plate of a dry gas holder according to claim 6, characterized in that: The middle part of the fabric is formed by several strands of cords interwoven together.

8. A sealing device for sealing leaks in the bottom plate of a dry gas holder according to claim 7, characterized in that: The two intersecting ropes are perpendicular to each other.

9. A sealing device for sealing leaks in the bottom plate of a dry gas holder according to claim 4, characterized in that: The angle of inclination of the upper inclined surface of the seal is 1-5°.

10. A sealing device for sealing leaks in the bottom plate of a dry gas holder according to claim 1, characterized in that: The tenon is either a dovetail tenon or a butterfly tenon.

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