Window structure suitable for high-temperature and high-pressure kettle and high-temperature and high-pressure kettle

Abstract

The invention discloses a window structure suitable for a high-temperature and high-pressure kettle and the high-temperature and high-pressure kettle, and relates to the technical field of container windows, the window structure comprises two open holes, sight glass seats corresponding to the open holes, visual glass corresponding to the open holes and sealing assemblies corresponding to the open holes, the two open holes are annularly formed in the side wall of the autoclave cylinder at intervals, the sight glass bases are arranged in the open holes, the tail ends of the sight glass bases extend to the outer portion of the autoclave cylinder, the visual glass is arranged in the open holes and located at the top ends of the sight glass bases, the visual glass extends into the autoclave cylinder, and the visual glass is arranged in the open holes and located at the top ends of the sight glass bases. The sealing assembly is arranged among the sight glass base, the visual glass and the open hole to form sealing, the sight glass base and the visual glass are fixed to a high-temperature and high-pressure container, namely the side wall of the autoclave cylinder through the open hole, and the situation in the autoclave cylinder can be observed and obtained in real time.

Description

Technical Field

[0001] The present invention relates to the technical field of container windows, and particularly to a window structure applicable to a high-temperature and high-pressure autoclave and a high-temperature and high-pressure autoclave. Background Art

[0002] In the technical field of oil and gas exploration, as the oil and gas exploration technology advances to deeper strata, the performance of the drill bit under high-temperature and high-pressure environments has become a key factor determining drilling efficiency and safety. It is necessary to manufacture special containers that can generate high temperature and high pressure to simulate the high-temperature and high-pressure environment under formation conditions. Inevitably, it is necessary to open a visual window on the high-temperature and high-pressure container for visual experiments to observe and analyze the wear mechanism of the drill bit, the change of cutting force, and the rock breaking characteristics, so as to provide reliable data for studying the performance of the drill bit. Therefore, it is urgent to research a visual window structure to meet the window sealing requirements under high-temperature and high-pressure environments. Summary of the Invention

[0003] Embodiments of the present invention provide a window structure applicable to a high-temperature and high-pressure autoclave and a high-temperature and high-pressure autoclave to meet the need for opening a visual window on the high-temperature and high-pressure container for visual experiments.

[0004] In a first aspect, a window structure applicable to a high-temperature and high-pressure autoclave is provided, including:

[0005] Two openings, the two openings are circumferentially spaced on the side wall of the autoclave cylinder;

[0006] A sight glass seat corresponding to each opening, the sight glass seat is arranged in the opening, and the tail end of the sight glass seat extends to the outside of the autoclave cylinder;

[0007] A visible glass corresponding to each opening, the visible glass is arranged in the opening and located at the top of the sight glass seat, and the visible glass extends into the autoclave cylinder;

[0008] A sealing assembly corresponding to each opening, the sealing assembly is arranged between the sight glass seat, the visible glass and the opening to form a seal.

[0009] In some embodiments, the sight glass seat is a cylindrical structure, and a ring-shaped boss is provided at the top of the sight glass seat, and the visible glass is embedded in the ring-shaped boss.

[0010] In some embodiments, a T-shaped transmission thread is provided on the outer wall of the sight glass seat along the circumferential direction, and the opening is a threaded hole matching the T-shaped transmission thread.

[0011] In some embodiments, the sealing assembly includes:

[0012] An O-ring is provided, and the O-ring is disposed outside the visible glass and is hermetically connected to the opening.

[0013] An elastic energy storage ring is provided, and the elastic energy storage ring is disposed on the top of the annular boss and is hermetically connected to the visible glass and the opening.

[0014] In some embodiments, the elastic energy storage ring includes:

[0015] A first triangular pad is provided, and the first triangular pad is disposed along the circumferential direction at the top end of the annular boss;

[0016] A second triangular pad is provided, and the inclined surface of the second triangular pad is attached to the inclined surface of the first triangular pad;

[0017] A lip seal is provided, and the lip seal is disposed at the front end of the second triangular pad. The lip seal and the first triangular pad and the second triangular pad form a radial sealing structure.

[0018] In some embodiments, the elastic energy storage ring further includes:

[0019] An alloy spring piece is provided, and the alloy spring piece is in a U-shaped structure and is disposed inside the lip of the lip seal.

[0020] In some embodiments, the sealing assembly further includes:

[0021] A washer is provided, and the washer is disposed between the bottom of the annular boss and the visible glass.

[0022] In some embodiments, both of the openings are inclinedly disposed on the side wall of the autoclave cylinder, and the inclination angle of one of the openings is 14 degrees to 15 degrees, and the inclination angle of the other opening is 9 degrees to 10 degrees.

[0023] In some embodiments, the included angle between the two openings is 45 degrees to 90 degrees.

[0024] In a second aspect, an autoclave is provided, including the window structure applicable to the autoclave described above.

[0025] The beneficial effects brought by the technical solution provided by the present invention include:

[0026] An embodiment of the present invention provides a window structure applicable to a high-temperature and high-pressure autoclave and a high-temperature and high-pressure autoclave. The window structure applicable to the high-temperature and high-pressure autoclave includes: two openings, a sight glass seat corresponding to each opening, a visible glass corresponding to each opening, and a sealing component corresponding to each opening. The two openings are circumferentially spaced on the side wall of the autoclave cylinder. The sight glass seat is arranged in the opening, and the tail end of the sight glass seat extends to the outside of the autoclave cylinder. The visible glass is arranged in the opening and located at the top of the sight glass seat, and the visible glass extends into the autoclave cylinder. The sealing component is arranged between the sight glass seat, the visible glass and the opening to form a seal. The sight glass seat and the visible glass are fixed on the side wall of the high-temperature and high-pressure container, that is, the autoclave cylinder, through the opening. One opening and the corresponding sight glass seat and visible glass are used for lighting, and the other opening and the corresponding sight glass seat and visible glass are used for observation. The two openings arranged in combination with the optical principle can effectively improve the illumination and clarity inside the autoclave cylinder, and the situation inside the autoclave cylinder can be observed and obtained in real time, and a visualization test can be carried out on the autoclave. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0028] Figure 1 FIG. 9 is an overall structural schematic diagram of a window structure applicable to a high-temperature and high-pressure autoclave provided by an embodiment of the present invention;

[0029] Figure 2 FIG. 13 is a specific structural schematic diagram of a window structure applicable to a high-temperature and high-pressure autoclave provided by an embodiment of the present invention;

[0030] Figure 3 FIG. 17 is a structural schematic diagram of an elastic energy storage ring provided by an embodiment of the present invention;

[0031] REFERENCE SIGNS:

[0032] 1. Opening;

[0033] 2. Autoclave cylinder;

[0034] 3. Sight glass seat; 31. Annular boss; 32. T-shaped transmission thread;

[0035] 4. Visible glass;

[0036] 5. Sealing assembly; 51. O-ring; 52. Elastic energy storage ring; 521. First triangular pad; 522. Second triangular pad; 523. Lip seal ring; 524. Alloy spring piece; 53. Washer. Detailed implementation manners

[0037] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Apparently, the described embodiments are some but not all of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the scope of protection of the present invention.

[0038] The embodiments of the present invention provide a window structure applicable to a high-temperature and high-pressure autoclave and a high-temperature and high-pressure autoclave to meet the requirement of conducting visual experiments by opening a visual window on a high-temperature and high-pressure container.

[0039] Figure 1 The window structure applicable to a high-temperature and high-pressure autoclave provided by the embodiments of the present invention includes: two openings 1, a sight glass seat 3 corresponding to each opening 1, a visible glass 4 corresponding to each opening 1, and a sealing assembly 5 corresponding to each opening 1. The two openings 1 are circumferentially spaced on the side wall of the autoclave cylinder 2. The sight glass seat 3 is disposed in the opening 1, and the tail end of the sight glass seat 3 extends to the outside of the autoclave cylinder 2. The visible glass 4 is disposed in the opening 1 and at the top of the sight glass seat 3, and the visible glass 4 extends into the autoclave cylinder 2. The sealing assembly 5 is disposed between the sight glass seat 3, the visible glass 4, and the opening 1 to form a seal.

[0040] The window structure applicable to a high-temperature and high-pressure autoclave according to an embodiment of the present invention is provided with two openings, a sight glass seat corresponding to each of the openings, a visible glass corresponding to each of the openings, and a sealing assembly corresponding to each of the openings. The two openings are circumferentially spaced on the side wall of the autoclave cylinder. The sight glass seat is arranged in the opening, and the tail end of the sight glass seat extends to the outside of the autoclave cylinder. The visible glass is arranged in the opening and located at the top of the sight glass seat, and the visible glass extends into the autoclave cylinder. The sealing assembly is arranged between the sight glass seat, the visible glass and the opening to form a seal. Among them, the two openings form a set of window structures. One of the openings and the corresponding sight glass seat and visible glass are used for lighting, and the other opening and the corresponding sight glass seat and visible glass are used for observation. In addition, a plurality of the openings can be circumferentially spaced on the side wall of the autoclave cylinder to form multiple sets of window structures at different angles for observing the cutting performance of the drill bit in the autoclave cylinder from different positions and different angles. For example, four of the openings are arranged on the side wall of the autoclave cylinder along the circumferential direction. Two of the openings form a set of window structures. One of the openings and the corresponding sight glass seat and visible glass in each set of window structures are used for lighting, and the other opening and the corresponding sight glass seat and visible glass in each set of window structures are used for observation. The sight glass seat and the visible glass are fixed on the side wall of the high-temperature and high-pressure container, that is, the autoclave cylinder, through the opening. The two openings arranged in combination with the optical principle can effectively improve the illumination and clarity in the autoclave cylinder, can observe and obtain the internal situation of the autoclave cylinder in real time, and perform a visualization test on the autoclave.

[0041] As an optional implementation manner, in an embodiment of the invention, refer to Figure 2 As shown, the sight glass seat 3 is a cylindrical structure, and a ring-shaped boss 31 is provided at the top of the sight glass seat 3. The visible glass 4 is embedded in the ring-shaped boss 31. The height of the ring-shaped boss 31 is not less than 10 mm to ensure that the sealing assembly 5 can be pressed out of the guiding angle and pressed into the sealing groove of the opening 1. The outer diameter of the ring-shaped boss 31 and the inner diameter of the sealing groove of the opening 1 are connected in an interference fit. The inner diameter of the ring-shaped boss 31 and the outer diameter of the visible glass 4 are also connected in an interference fit, which can make the sealing assembly 5 achieve reliable sealing and improve its sealing performance. At the same time, the visible glass 4 is made of sapphire glass material. Sapphire glass has high hardness, good heat resistance and good light transmittance.

[0042] As an optional implementation manner, in an embodiment of the invention, refer to Figure 2As shown, on the outer wall of the sight glass base 3, a T-shaped drive thread 32 is provided along the circumferential direction, and the opening 1 is a threaded hole matching the T-shaped drive thread 32. The sight glass base 3 is threadedly connected to the opening 1 through the T-shaped drive thread 32. The height of the T-shaped drive thread 32 is calculated based on the ultimate shear stress required for each thread of this type of thread. This connection structure is simple, convenient for disassembly and assembly, and has a low maintenance cost. Dust and impurities are not easily accumulated on the surface area of the viewing window, making it easier to clean. Moreover, the T-shaped drive thread 32 can significantly improve the shear resistance of the sight glass base 3 and enhance the mechanical properties of the sight glass base 3.

[0043] As an optional implementation manner, in an invention embodiment, refer to Figure 2 As shown, the sealing assembly 5 includes: an O-ring 51 and an elastic energy storage ring 52. The O-ring 51 is arranged outside the visible glass 4 and is hermetically connected to the opening 1. The elastic energy storage ring 52 is arranged on the top of the annular boss 31 and is hermetically connected to the visible glass 4 and the opening 1. An O-ring groove is provided in the opening 1. The O-ring 51 is the first radial seal to hermetically connect the visible glass 4 and the opening 1. The O-ring is made of a perfluoroether rubber ring, and the inner diameter of the O-ring 51 and the O-ring groove is in a transition fit connection to ensure its reliable seal in extreme environments. The elastic energy storage ring 52 is the second radial seal and the main seal to hermetically connect the bottom of the visible glass 4 and the top end of the sight glass base 3 to the opening 1. A sealing groove for the elastic energy storage ring 52 in an opening form is also provided in the opening 1, and a guiding angle is set at the opening end to facilitate pressing the elastic energy storage ring 52 into the sealing groove. The double-seal structure can effectively improve the overall sealing performance of the viewing window structure of the present invention embodiment applicable to high-temperature and high-pressure autoclaves. When the single-seal structure fails to seal in a high-temperature and high-pressure environment, the other radial seal structure can still provide reliable sealing, reducing the risk of leakage of the viewing window structure.

[0044] As an optional implementation manner, in an invention embodiment, refer to Figure 2 and Figure 3As shown, the elastic energy storage ring 52 includes: a first triangular pad 521, a second triangular pad 522, and a lip seal 523. The first triangular pad 521 is disposed along the circumferential direction at the top of the annular boss 31. The inclined surface of the second triangular pad 522 is in contact with the inclined surface of the first triangular pad 521. The lip seal 523 is disposed at the front end of the second triangular pad 522. The lip seal 523 and the first triangular pad 521 and the second triangular pad 522 form a radial sealing structure. The first triangular pad 521 and the second triangular pad 522 are arranged offset from each other. The inclined surfaces between the first triangular pad 521 and the second triangular pad 522 are connected by a clearance fit. Both the first triangular pad 521 and the second triangular pad 522 are made of PEEK (polyether ether ketone) material. The lip seal 523 is made of polytetrafluoroethylene material. The lip seal 523 and the sealing contact surfaces of the opening 1 and the visual glass 4 are connected by an interference fit. The inner diameter of the lip seal 523 is smaller than the outer diameter of the visual glass 4. The outer diameter of the lip seal 523 is larger than the inner diameter of the sealing groove of the elastic energy storage ring 52. The inner diameter after the first triangular pad 521 and the second triangular pad 522 are assembled is connected to the outer diameter of the visual glass 4 by a clearance fit. The outer diameter after the first triangular pad 521 and the second triangular pad 522 are assembled is connected to the inner diameter of the sealing groove of the elastic energy storage ring 52 by a clearance fit. The offset arrangement of the first triangular pad 521 and the second triangular pad 522 can make their inner and outer sides better adhere to the sealing contact surfaces, enabling the first triangular pad 521 and the second triangular pad 522 to withstand a sufficiently large torsional and shear force and not undergo obvious rupture when subjected to a huge outward extrusion force from the lip seal 523, significantly improving the compressive capacity and sealing performance of the elastic energy storage ring 52, and at the same time reducing the difficulty of installation and disassembly of the radial sealing position.

[0045] As an alternative embodiment, in an invention embodiment, refer to Figure 2 and Figure 3As shown, the elastic energy storage ring 52 further includes: an alloy spring piece 524. The alloy spring piece 524 is of a U-shaped structure and is arranged inside the lip of the lip seal ring 523. The alloy spring piece 524 is an alloy spring pad and is made of 316L stainless steel. After the elastic energy storage ring 52 is installed in the sealing position, the alloy spring piece 524 is deformed under pressure, providing the load required for initial sealing at low pressure. The alloy spring piece 524 with a U-shaped structure is inserted into the lip of the lip seal ring 523, enabling the lip seal ring 523 to have a certain degree of opening and extension, which can help the lip seal ring 523 better establish the initial pressure and is not easily damaged during the disassembly process. That is, when the pressure in the autoclave cylinder 2 enters the opening 1, the pressure acts on the alloy spring piece 524, making the lip of the lip seal ring 523 fit more tightly into the sealing groove of the elastic energy storage ring 52, thus forming a good sealing effect. In addition, since the lip seal ring 523 is made of polytetrafluoroethylene, its hardness is lower than that of the autoclave cylinder 2 and the viewing glass 4, and it is not easily damaged when subjected to a large extrusion force, protecting the sealing surfaces of the autoclave cylinder 2 and the viewing glass 4.

[0046] As an alternative embodiment, in an inventive embodiment, refer to Figure 2 As shown, the sealing assembly 5 further includes: a gasket 53. The gasket 53 is arranged between the bottom of the annular boss 31 and the viewing glass 4. The viewing glass seat 3 and the viewing glass 4 are separated by the gasket 53. The gasket 53 plays a buffering role, effectively reducing the risk of the viewing glass 4 cracking due to squeezing the viewing glass seat 3 under high-pressure conditions.

[0047] As an alternative embodiment, in an inventive embodiment, refer to Figure 1 As shown, both of the openings 1 are inclinedly arranged on the side wall of the autoclave cylinder 2. The inclination angle of one opening 1 is 14 degrees to 15 degrees, and the inclination angle of the other opening 1 is 9 degrees to 10 degrees. By changing the opening direction, the stress concentration points on the side wall of the autoclave cylinder 2 can be effectively dispersed, reducing the risk of cracks and fatigue damage. The inclined openings can also provide a better viewing angle, enabling the operator to see the inside of the autoclave cylinder 2 more clearly. At the same time, the inclined openings can reduce the direct reflection of light into the observer's eyes or the camera, allowing the light to enter the autoclave cylinder 2 and evenly illuminate the observed object. One opening 1 is used for lighting, and the other opening 1 is used for observation. That is, the angle of the lighting hole is greater than the angle of the observation hole, and the light source and the observed object are at a certain angle, avoiding the direct reflection of light into the observer's eyes or the camera, reducing glare, and improving the accuracy and precision of observation.

[0048] As an alternative embodiment, in one embodiment of the invention, refer to Figure 1 As shown, the included angle between the two openings 1 is 45 degrees to 90 degrees, that is, the included angle between the light-emitting hole and the observation hole is 45 degrees to 90 degrees. An included angle of 45 degrees to 90 degrees can ensure that the light irradiates the object to be observed evenly, ensuring that both the light-emitting and the observation are focused on the observation point, reducing shadows and reflections, thereby improving the lighting effect, enabling the observer to clearly see the details and features of the object to be observed, and reducing visual fatigue and discomfort.

[0049] The embodiment of the present invention further provides a high-temperature and high-pressure autoclave, including the window structure applicable to the high-temperature and high-pressure autoclave described above. The window structure applicable to the high-temperature and high-pressure autoclave includes two openings 1, a sight glass seat 3 corresponding to each opening 1, a visible glass 4 corresponding to each opening 1, and a sealing assembly 5 corresponding to each opening 1. The two openings 1 are circumferentially spaced on the side wall of the autoclave cylinder 2. The sight glass seat 3 is arranged in the opening 1, and the tail end of the sight glass seat 3 extends to the outside of the autoclave cylinder 2. The visible glass 4 is arranged in the opening 1 and located at the top of the sight glass seat 3, and the visible glass 4 extends into the autoclave cylinder 2. The sealing assembly 5 is arranged between the sight glass seat 3, the visible glass 4 and the opening 1 to form a seal.

[0050] The autoclave according to the embodiment of the present invention, the window structure applicable to the autoclave is provided with two openings, a sight glass seat corresponding to each of the openings, a visible glass corresponding to each of the openings, and a sealing component corresponding to each of the openings. The two openings are circumferentially spaced on the side wall of the autoclave cylinder. The sight glass seat is arranged in the opening, and the tail end of the sight glass seat extends to the outside of the autoclave cylinder. The visible glass is arranged in the opening and located at the top of the sight glass seat, and the visible glass extends into the autoclave cylinder. The sealing component is arranged between the sight glass seat, the visible glass and the opening to form a seal. Among them, the two openings form a group of window structures. One of the openings and the corresponding sight glass seat and visible glass are used for lighting, and the other opening and the corresponding sight glass seat and visible glass are used for observation. In addition, a plurality of the openings can be circumferentially spaced on the side wall of the autoclave cylinder to form multiple groups of window structures at different angles for observing the cutting performance of the drill bit in the autoclave cylinder from different positions and different angles. For example, four of the openings are arranged on the side wall of the autoclave cylinder along the circumferential direction. Two of the openings are a group of window structures. One of the openings and the corresponding sight glass seat and visible glass in each group of window structures are used for lighting, and the other opening and the corresponding sight glass seat and visible glass in each group of window structures are used for observation. The sight glass seat and the visible glass are fixed to the side wall of the high-temperature and high-pressure container, that is, the autoclave cylinder, through the opening. The two openings arranged in combination with the optical principle can effectively improve the illumination and clarity in the autoclave cylinder, can observe and obtain the internal situation of the autoclave cylinder in real time, and perform a visualization test on the autoclave.

[0051] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the structure or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention. Unless otherwise clearly specified and defined, the terms "installation", "connection", and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0052] It should be noted that in the present invention, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variation thereof is intended to cover non-exclusive inclusion, such that a process, method, article or device comprising a series of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "comprising an..." does not exclude the presence of additional identical elements in the process, method, article or device comprising the said element.

[0053] The above are only specific embodiments of the present invention, enabling those skilled in the art to understand or implement the present invention. Various modifications to these embodiments will be obvious to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the broadest scope consistent with the principles and novel features of the invention herein.

Claims

1. A window structure applicable to a high-temperature and high-pressure autoclave, characterized in that, Comprising: Two openings (1), and the two openings (1) are circumferentially spaced on the side wall of the autoclave cylinder body (2); A sight glass seat (3) corresponding to each of the openings (1), the sight glass seat (3) is arranged in the opening (1), and the tail end of the sight glass seat (3) extends to the outside of the autoclave cylinder body (2); A visible glass (4) corresponding to each of the openings (1), the visible glass (4) is arranged in the opening (1) and located at the top of the sight glass seat (3), and the visible glass (4) extends into the autoclave cylinder body (2); A sealing assembly (5) corresponding to each of the openings (1), the sealing assembly (5) is arranged between the sight glass seat (3), the visible glass (4) and the opening (1) to form a seal.

2. The window structure applicable to a high-temperature and high-pressure autoclave according to claim 1, characterized in that: The sight glass seat (3) is of a cylindrical structure, and an annular boss (31) is provided at the top of the sight glass seat (3), and the visible glass (4) is embedded in the annular boss (31).

3. The window structure applicable to a high-temperature and high-pressure autoclave according to claim 2, characterized in that: A T-shaped driving thread (32) is provided on the outer wall of the sight glass seat (3) along the circumferential direction, and the opening (1) is a threaded hole matching the T-shaped driving thread (32).

4. The window structure applicable to a high-temperature and high-pressure autoclave according to claim 2, characterized in that, The sealing assembly (5) includes: An O-ring (51), the O-ring (51) is arranged outside the visible glass (4) and is sealingly connected to the opening (1); An elastic energy storage ring (52), the elastic energy storage ring (52) is arranged on the top of the annular boss (31) and is sealingly connected to the visible glass (4) and the opening (1).

5. The window structure applicable to a high-temperature and high-pressure autoclave according to claim 4, characterized in that, The elastic energy storage ring (52) includes: A first triangular pad (521), the first triangular pad (521) is arranged along the circumferential direction at the top of the annular boss (31); A second triangular pad (522), the inclined surface of the second triangular pad (522) is attached to the inclined surface of the first triangular pad (521); A lip seal (523), the lip seal (523) is arranged at the front end of the second triangular pad (522), and the lip seal (523) and the first triangular pad (521), the second triangular pad (522) form a radial sealing structure.

6. The window structure applicable to a high-temperature and high-pressure autoclave according to claim 5, characterized in that, The elastic energy storage ring (52) further includes: An alloy spring piece (524), the alloy spring piece (524) is of a U-shaped structure and is arranged in the lip of the lip seal (523).

7. The window structure applicable to a high-temperature and high-pressure autoclave according to claim 4, characterized in that, The sealing assembly (5) further includes: A washer (53), the washer (53) is arranged between the bottom of the annular boss (31) and the visible glass (4).

8. The window structure applicable to a high-temperature and high-pressure autoclave according to claim 1, characterized in that: The two openings (1) are both inclined on the side wall of the autoclave cylinder body (2), and the inclination angle of one opening (1) is 14 degrees to 15 degrees, and the inclination angle of the other opening (1) is 9 degrees to 10 degrees.

9. The window structure applicable to a high-temperature and high-pressure autoclave according to claim 8, characterized in that: The included angle between the two openings (1) is 45 degrees to 90 degrees.

10. A high-temperature and high-pressure autoclave, characterized in that, Comprising the window structure applicable to a high-temperature and high-pressure autoclave according to any one of claims 1-9.

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