Sealing structure device of autoclave heater

Abstract

The utility model discloses an autoclave heater sealing structure device, which comprises an autoclave shell and a heating pipe inserted in the autoclave shell through a sealing device, the sealing device comprises a fixing seat, a pressing piece, an assembling seat and an integrated sealing piece, the integrated sealing piece is composed of a first conical head, a second conical head, a first sealing piece and a second sealing piece, the utility model relates to the technical field of autoclaves, in particular to an autoclave. According to the sealing structure device of the autoclave heater, a traditional threaded connection mode of a compression nut is replaced with a flange assembly mode, on one hand, position deviation of a sealing piece caused by downward screwing of the compression nut can be avoided in the installation process, and the sealing effect is ensured; the sealing performance and the pressure bearing capacity are better, meanwhile, an integrated sealing piece is adopted to replace a traditional overlapped sealing structure, dismounting and mounting are more convenient, an annular gasket is arranged, the coverage range is optimized, and the sealing effect is further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of autoclaves, in particular to an autoclave heater sealing structure device. Background Art

[0002] After searching, Chinese patent CN207156493U discloses a special heater sealing structure for autoclaves. The inner cavity of the shell is a pressurized cavity. The heating tube passes through the inside of the shell. The shell is sealed by pressing the copper pad through the base. The sealing of the heating tube is achieved by tightening the compression nut and pressing the annular sealing ring downward to transfer the downward pressure to the cone head sealing ring. An annular sealing ring is arranged between the compression nut and the upper end of the cone head sealing ring. The upper and lower ends of the outer side of the annular sealing ring are respectively processed with annular outer conical surfaces, and the inner side of the upper end of the cone head sealing ring is also processed with an annular inner conical surface matching the outer conical surface. The sealing of the heating tube is achieved by the compression nut, the cone head sealing ring / annular sealing ring base. The sealing structure enables the heating tube to be disassembled smoothly and the seal can be used multiple times.

[0003] In the process of implementing the present invention, the inventors discovered that the prior art has at least the following problems:

[0004] As mentioned above, the current sealing structure of a heater dedicated to an autoclave, in order to prevent the cone head sealing ring from being stuck to the wall of the heating tube under the action of the tightening nut, replaces the traditional sealing structure by providing an annular sealing ring and a cone head sealing ring that overlap each other. However, in actual application, the current sealing ring is relatively small in size, and the tightening nut will inevitably drive the sealing structure to rotate during the process of tightening it, which can easily cause the position of the sealing structure to shift and even affect the sealing effect.

[0005] Therefore, the above technical problems need to be solved. Utility Model Content

[0006] In order to overcome the shortcomings of the existing technology, the utility model proposes a hot-press tank heater sealing structure device, which solves the problem that the current sealing ring is relatively small in size, and the tightening nut will inevitably drive the sealing structure to rotate during the tightening process, which may easily cause the position of the sealing structure to shift and even affect the sealing effect.

[0007] In order to solve the above technical problems, the basic technical solutions proposed by the present invention are as follows:

[0008] The autoclave heater sealing structure device comprises an autoclave shell and a heating tube inserted into the autoclave shell through a sealing device.

[0009] The sealing device includes a fixing seat welded through the autoclave shell and a pressing piece welded to the outer wall of the heating tube, an assembly seat installed between the pressing piece and the fixing seat through a plurality of locking fitting flanges, and an integrated sealing piece embedded in the compression piece and the assembly seat.

[0010] The integrated sealing component is composed of a first cone head and a second cone head which are coaxially distributed up and down, and an annular gasket arranged outside the first cone head and the second cone head.

[0011] Preferably, the locking accessory includes a screw rod and a first nut and a second nut arranged in an upper and lower arrangement and threadedly assembled thereon. The first nut is used to lock the pressing member and the assembly seat, and the second nut is used to lock the assembly seat and the fixing seat. Specifically, during installation, the operator first tightens the second nut and then the first nut.

[0012] Preferably, the assembly seat and the fixing seat are provided with a sealing ring coaxially arranged between the assembly seat and the fixing seat, and the flange on the top of the fixing seat and the flange on the bottom of the assembly seat are provided with grooves for the sealing ring to be inserted into. The provision of the sealing ring further ensures the sealing between the assembly seat and the fixing seat.

[0013] Preferably, the flange on the top of the fixing base and the flange on the bottom of the assembly base are each provided with a plurality of U-shaped grooves arranged in a circular array, which are adapted to fit the screws. Since the flange on the fixing base is adjacent to the autoclave shell, installing a longer screw is inconvenient. By providing U-shaped grooves around the flange on the top of the fixing base and the flange on the bottom of the assembly base for the screws to fit through, the installation convenience of the locking accessories is improved.

[0014] Preferably, the device further comprises an end cap with a sunken thread mounted on the top of the compression member, and a conical sealing ring is embedded between the inner side of the bottom of the end cap and the top of the compression member. The compression member is welded to the outer wall of the heating tube, and the end cap and the conical sealing ring can provide subsequent sealing between the compression member and the heating tube.

[0015] The beneficial effects of the utility model are:

[0016] The technical solution of the present invention replaces the traditional threaded connection method of the compression nut with a flange assembly method. On the one hand, during the installation process, the seal can be prevented from being shifted in position due to the tightening of the compression nut, thereby ensuring the sealing effect. On the other hand, compared with the threaded connection, the flange assembly has better sealing performance and pressure bearing capacity. At the same time, an integrated seal is used to replace the traditional stacked sealing structure, which makes disassembly and assembly more convenient, and is equipped with an annular gasket to optimize the coverage range and further improve the sealing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1This is a schematic structural diagram of an embodiment of the present utility model;

[0018] Figure 2 It is a schematic diagram of the cross-sectional structure of the utility model;

[0019] Figure 3 This is a schematic structural diagram of the integrated sealing element of the utility model;

[0020] Figure 4 This is a schematic structural diagram of the locking accessory of the utility model;

[0021] Figure 5 This is a schematic diagram of the installation structure of the assembly seat of the utility model;

[0022] Figure 6 This is a schematic diagram of the installation structure of the terminal of the utility model;

[0023] Description of reference numerals:

[0024] 100. Autoclave shell;

[0025] 200, sealing device;

[0026] 210, fixing seat; 220, pressing member; 230, locking accessory; 240, assembly seat; 250, integrated sealing member; 260, sealing ring; 270, groove; 280, U-shaped groove;

[0027] 2210, end; 2220, cone head sealing ring;

[0028] 2310, screw; 2320, first nut; 2330, second nut;

[0029] 2510, first cone head; 2520, second cone head; 2530, annular gasket;

[0030] 300. Heating tube. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0032] See also Figures 1-6The utility model provides a technical solution: an autoclave heater sealing structure device, including an autoclave shell 100 and a heating tube 300 inserted into the autoclave shell 100 through a sealing device 200, the sealing device 200 includes a fixing seat 210 welded through the autoclave shell 100 and a pressing piece 220 welded to the outer wall of the heating tube 300, and an assembly seat 240 flange-mounted between the pressing piece 220 and the fixing seat 210 through a plurality of locking accessories 230, and an integrated sealing member 250 embedded in the compression piece 220 and the assembly seat 240. The integrated sealing member 250 consists of a first cone head 2510 and a second cone head 2520 coaxially distributed above and below, and an annular gasket 2530 arranged on the outside between the two.

[0033] Based on the above-mentioned structural setting, the autoclave heater sealing structure device is composed of an autoclave shell 100, a sealing device 200 and a heating tube 300, wherein the sealing device 200 provides a structural guarantee for the heating tube 300 to be sealed and inserted into the autoclave shell 100. Specifically, during the installation process, the operator first inserts the assembly seat 240 into the fixing seat 210, and then embeds the integrated sealing member 250 on the top of the assembly seat 240, and finally inserts the heating tube 300 into the assembly seat 240. The heating tube 300 extends into the autoclave shell 100 until the pressing member 220 fits and covers the top of the assembly seat 240. At this time, the operator can fix the assembly seat 240 and the pressing member 220 in turn with the help of several locking accessories 230. Since the pressing member 220 The locking and positioning is achieved by the locking accessories 230, and there is no rotation operation during the pressing process. At the same time, the integrated seal 250 is relatively large in size, so during the assembly process, the probability of the integrated seal 250 moving is small, ensuring the sealing effect. The autoclave heater sealing structure device replaces the traditional threaded connection method of the compression nut with a flange assembly method. On the one hand, during the installation process, the seal can be prevented from being shifted due to the downward tightening of the compression nut, thereby ensuring the sealing effect. On the other hand, compared with the threaded connection, the flange assembly has better sealing performance and pressure bearing capacity. At the same time, the integrated seal 250 is used to replace the traditional overlapping sealing structure, which makes disassembly and assembly more convenient, and is equipped with an annular gasket 2530 to optimize the coverage range and further improve the sealing effect.

[0034] Furthermore, the locking accessory 230 includes a screw rod 2310 and a first nut 2320 and a second nut 2330 that are distributed in the upper and lower parts and are threadedly assembled thereon.

[0035] Furthermore, it also includes a sealing ring 260 coaxially arranged between the assembly seat 240 and the fixed seat 210, and a groove 270 for the sealing ring 260 to be embedded is opened on the flange plate on the top of the fixed seat 210 and the flange plate on the bottom of the assembly seat 240.

[0036] Furthermore, a plurality of U-shaped grooves 280 distributed in a circular array are provided around the flange on the top of the fixing seat 210 and the flange on the bottom of the assembly seat 240 , and the U-shaped grooves 280 are adapted to the screw rods 2310 .

[0037] Furthermore, it also includes an end head 2210 that is assembled on the top of the pressing piece 220 through a sunken thread, and a cone head sealing ring 2220 is embedded between the inner side of the bottom of the end head 2210 and the top of the pressing piece 220.

[0038] Based on the disclosure and teachings of the above description, those skilled in the art may also make changes and modifications to the above embodiments. Therefore, the present invention is not limited to the specific embodiments disclosed and described above, and any modifications and variations of the present invention should also fall within the scope of protection of the claims of the present invention. In addition, although certain specific terms are used in this description, these terms are for convenience of description only and do not constitute any limitation to the present invention.

Claims

1. A sealing structure device for an autoclave heater, comprising an autoclave shell (100) and a heating tube (300) inserted into the autoclave shell (100) via a sealing device (200); Its characteristics are: The sealing device (200) comprises a fixing seat (210) welded to the autoclave shell (100), a pressing member (220) welded to the outer wall of the heating tube (300), an assembly seat (240) flange-mounted between the pressing member (220) and the fixing seat (210) via a plurality of locking fittings (230), and an integrated sealing member (250) embedded between the pressing member (220) and the assembly seat (240). The integrated seal (250) is composed of a first cone head (2510) and a second cone head (2520) coaxially distributed at the upper and lower ends, and an annular gasket (2530) disposed outside the first cone head and the second cone head.

2. The autoclave heater sealing structure device according to claim 1, characterized in that: The locking accessory (230) includes a screw (2310) and a first nut (2320) and a second nut (2330) which are distributed in an upper and lower manner and are both threadedly assembled thereon.

3. The autoclave heater sealing structure device according to claim 1, characterized in that: The invention also includes a sealing ring (260) coaxially arranged between the assembly seat (240) and the fixed seat (210), and a groove (270) for embedding the sealing ring (260) is provided on the flange at the top of the fixed seat (210) and the flange at the bottom of the assembly seat (240).

4. The autoclave heater sealing structure device according to claim 2, characterized in that: A plurality of U-shaped grooves (280) distributed in a circular array are provided around the flange at the top of the fixing seat (210) and the flange at the bottom of the assembly seat (240), and the U-shaped grooves (280) are adapted to the screw rods (2310).

5. The autoclave heater sealing structure device according to claim 1, characterized in that: It also includes an end head (2210) with a sunken thread assembled on the top of the pressing member (220), and a cone head sealing ring (2220) is embedded between the inner side of the bottom of the end head (2210) and the top of the pressing member (220).

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