Inflatable efficient sealing structure and preparation process thereof
Technical Field
The invention relates to an oil-gas sealing structure, in particular to an inflatable efficient sealing structure applied to a gas holder and a preparation process thereof.
Background
At present, a conventional gas holder sealing structure is to fill a rubber sheath with a filler such as a sponge, however, in practical application, it is found that the rubber sheath of the ring-mounted structure has a seam, and the seam is always used for a long time, so that oil gas permeates into the rubber sheath and reacts with the filler such as the sponge filled in the rubber sheath, thereby affecting the sealing effect.
Disclosure of Invention
The invention aims to overcome the defects and provide an inflatable high-efficiency sealing structure and a preparation process thereof, wherein the inflatable structure is adopted to replace the conventional sponge filling, so that the problem of oil gas erosion is avoided.
The purpose of the invention is realized in the following way:
the utility model provides an inflatable high-efficient seal structure, includes the sealing rubber area that is located between the floating disc outer wall of cabinet internal wall, sealing rubber area is an annular structure, and the ring surface of the sealing rubber area of this annular structure is sunken down and is formed an annular channel that holds the gasbag, and the cell wall top of the annular channel of sealing rubber area is all fixed mounting on the outer wall of floating disc;
The air bag comprises a cylindrical rubber inner tube, connecting flanges are arranged at two opening ends of the rubber inner tube, two ends of the rubber inner tube are connected through the connecting flanges to form an annular structure, step air charging holes are formed in the radial direction of the connecting flanges, the large aperture ends of the step air charging holes face inwards, the small aperture ends of the step air charging holes face outwards, and one-way valves are embedded in the large aperture ends of the step air charging holes.
The invention relates to an inflatable efficient sealing structure, wherein a pressure sensor is embedded in a small-aperture end of a step air inflation hole.
A preparation process of an inflatable efficient sealing structure is characterized by comprising the following steps:
step1, preparing an air bag:
Step 1.1, after the rubber plate is dragged to the lower part of the hot-pressing roller, surrounding the rubber plate on the hot-pressing roller;
Step 1.2, sleeving two connecting flanges onto the hot pressing roller from two ends of the hot pressing roller respectively, pressing two ends of the rubber plate onto the flanges of the flange plates of the connecting flanges, and then tensioning the rubber plate to enable the rubber plate to be tightly attached to the hot pressing roller;
Step 1.3, respectively pressing the rubber plate downwards and upwards on the hot press roller under the action of the oil cylinder by the upper arc pressing plate and the lower arc pressing plate, and enabling the upper arc pressing plate and the lower arc pressing plate to be combined to form a complete cylindrical structure, wherein arc grooves for embedding flanges of flange plates of the connecting flange are formed at two ends of the arc surfaces of the upper arc pressing plate and the lower arc pressing plate;
Step 1.4, heating the heat conduction steam in the pipeline in the hot pressing roller, the thermocouples in the upper arc pressing plate and the lower arc pressing plate for two hours to enable the connecting flange and the rubber plate to be integrally formed through hot pressing and vulcanization;
Step 1.5, trimming, namely opening an upper arc-shaped pressing plate and a lower arc-shaped pressing plate, cutting off residual materials at the joint of the rubber inner tube formed after the rubber plate is wound, and then rotating the rubber inner tube by 90 degrees;
Step 1.6, closing the upper arc pressing plate and the lower arc pressing plate, and continuously heating for half an hour to obtain re-vulcanization of the joint of the rubber inner tube;
Step 1.7, after opening the upper arc pressing plate and the lower arc pressing plate, pulling out the rubber inner tube with the connecting flange, then punching the connecting flange along the axial direction to form a connecting bolt hole, punching the connecting flange along the radial direction to form a step air charging hole, and embedding a one-way valve into the big head end of the step air charging hole positioned at the inner side;
step 1.8, connecting flanges at two ends of the rubber inner tube are combined to form a complete air bag;
Step 2, bending the ring surface of the sealing rubber belt with the ring-shaped structure into a U-shaped groove, and then plugging the U-shaped groove into an annular space between the inner wall of the cabinet body and the outer wall of the floating disc;
Step 3, after the air bag manufactured in the step 1 is placed in the U-shaped groove, the air bag is inflated through the step inflation hole, so that the air bag is inflated to drive two sides of the sealing rubber belt to be respectively attached to the inner wall of the cabinet body and the outer wall of the floating disc;
step 4, fixing the groove walls at two sides of the U-shaped groove of the sealing rubber belt with the annular structure on the top of the outer wall of the floating disc;
According to the preparation process of the inflatable efficient sealing structure, welding sealing treatment is carried out between the top of the pressure sensor and the hole edge of the step air charging hole, so that once the air leakage occurs in the rubber inner tube of the air bag, the air in the step air charging hole is led into the rubber inner tube, and at the moment, the pressure sensor sends a detected air pressure reduction signal to the terminal server to remind maintenance.
Compared with the prior art, the invention has the beneficial effects that:
The invention uses the inflatable structure to replace the conventional filling structure, thereby avoiding the erosion of oil gas to the filler and ensuring the sealing effect. Meanwhile, after the conventional inflatable structure, the whole structure is simpler and the assembly is more convenient.
Drawings
Fig. 1 is a schematic structural view of an inflatable high-efficiency sealing structure according to the present invention.
FIG. 2 is a schematic structural view of an airbag with an inflatable high-efficiency sealing structure according to the present invention.
FIG. 3 is a partial side view of a gas-filled high-efficiency seal structure of the present invention in a ready-made state.
Fig. 4 is a front partial cross-sectional view of a preparation state of an inflatable high-efficiency sealing structure of the present invention.
Wherein:
The cabinet body 1, the floating disc 2, the sealing rubber belt 3 and the air bag 4;
the rubber inner tube 4.1, the connecting flange 4.2, the step air charging hole 4.3, the one-way valve 4.4 and the pressure sensor 4.5;
A hot press roller 101, an upper arc-shaped pressing plate 102, a lower arc-shaped pressing plate 103, an end cover 104 and a rubber plate 105.
Detailed Description
Referring to fig. 1-4, the inflatable efficient sealing structure comprises sealing rubber belts 3 positioned between the outer walls of floating discs 2 on the inner wall of a cabinet body 1, wherein the sealing rubber belts 3 are of an annular structure, the annular surface of each sealing rubber belt 3 of the annular structure is sunken downwards to form an annular groove for accommodating an air bag 4, and the tops of groove walls of the annular grooves of the sealing rubber belts 3 are fixedly arranged on the outer walls of the floating discs 2;
Therefore, the air bag 4 comprises a rubber inner tube 4.1 with a cylindrical structure, the two opening ends of the rubber inner tube 4.1 are respectively provided with a connecting flange 4.2, the two ends of the rubber inner tube 4.1 are connected through the connecting flanges 4.2 to form an annular structure, the connecting flanges 4.2 are radially provided with step air charging holes 4.3, the large aperture ends of the step air charging holes 4.3 face inwards, the small aperture ends of the step air charging holes 4.3 face outwards, and the large aperture ends of the step air charging holes 4.3 are embedded with one-way valves 4.4.
Further, a pressure sensor 4.5 is embedded in the small-aperture end of the step air charging hole 4.3.
A preparation process of an inflatable efficient sealing structure comprises the following steps:
step1, preparing an air bag:
Step 1.1, after the rubber plate 105 is dragged to the lower part of the hot-pressing roller 101, the rubber plate 105 is wound on the hot-pressing roller 101;
Step 1.2, sleeving two connecting flanges 4.2 onto the hot-pressing roller 101 from two ends of the hot-pressing roller 101 respectively, pressing two ends of a rubber plate 105 onto the flanges of the flange plates of the connecting flanges 4.2, and then tensioning the rubber plate 105 to enable the rubber plate 105 to be tightly attached to the hot-pressing roller 101;
step 1.3, an upper arc pressing plate 102 and a lower arc pressing plate 103 respectively press the rubber plate 105 on the hot press roller 101 downwards and upwards under the action of an oil cylinder, the upper arc pressing plate 102 and the lower arc pressing plate 103 are combined to form a complete cylindrical structure, and arc grooves for embedding flanges of the flange plate of the connecting flange 4.2 are formed at two ends of the arc surfaces of the upper arc pressing plate 102 and the lower arc pressing plate 103;
Step 1.4, heating the heat conduction steam in the pipeline in the hot-pressing roller 101, the thermocouples in the upper arc-shaped pressing plate 102 and the lower arc-shaped pressing plate 103 for two hours to enable the connecting flange 4.2 and the rubber plate 105 to form an integral through hot-pressing vulcanization;
step 1.5, trimming, namely opening an upper arc-shaped pressing plate 102 and a lower arc-shaped pressing plate 103, cutting off residual materials at the joint of the rubber inner tube 4.1 formed after the rubber plate 105 is wound, and then rotating the rubber inner tube 4.1 by 90 degrees;
step 1.6, closing the upper arc-shaped pressing plate 102 and the lower arc-shaped pressing plate 103, and continuously heating for half an hour to re-vulcanize the joint of the rubber inner tube 4.1;
Step 1.7, after the upper arc pressing plate 102 and the lower arc pressing plate 103 are opened, the rubber inner tube 4.1 with the connecting flange 4.2 is pulled out, then a connecting bolt hole is formed by punching on the connecting flange 4.2 along the axial direction, a step air filling hole 4.3 is formed by punching on the connecting flange 4.2 along the radial direction, and a check valve 4.4 is embedded in the big end of the step air filling hole 4.3 positioned on the inner side;
step 1.8, connecting flanges 4.2 at two ends of the rubber inner tube 4.1 are combined to form a complete air bag 4;
step 2, bending the ring surface of the sealing rubber belt 3 with the ring structure into a U-shaped groove, and then plugging the U-shaped groove into an annular space between the inner wall of the cabinet body 1 and the outer wall of the floating disc 2;
Step 3, after the air bag 4 manufactured in the step 1 is placed in the U-shaped groove, the air bag 4 is inflated through the step inflation hole 4.3, so that the air bag 4 is inflated to drive the two sides of the sealing rubber belt 3 to be respectively attached to the inner wall of the cabinet body 1 and the outer wall of the floating disc 2;
Step 4, fixing the groove walls at two sides of the U-shaped groove of the sealing rubber belt 3 with the annular structure on the top of the outer wall of the floating disc 2;
Further, the welding sealing treatment is performed between the top of the pressure sensor 4.5 and the hole edge of the step air charging hole 4.3, so that once the air leakage occurs in the rubber inner tube 4.1 of the air bag 4, the air in the step air charging hole 4.3 is led into the rubber inner tube 4.1, and at the moment, the pressure sensor 4.5 sends a detected air pressure reduction signal to the terminal server to remind maintenance.
In addition, it should be noted that the above specific embodiment is only one optimization scheme of the present patent, and any modification or improvement made by those skilled in the art according to the above concepts falls within the protection scope of the present patent.