CN216605170U - Multistage sealing device suitable for visual window under high temperature and high pressure - Google Patents
Multistage sealing device suitable for visual window under high temperature and high pressure Download PDFInfo
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- CN216605170U CN216605170U CN202121139017.7U CN202121139017U CN216605170U CN 216605170 U CN216605170 U CN 216605170U CN 202121139017 U CN202121139017 U CN 202121139017U CN 216605170 U CN216605170 U CN 216605170U
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Abstract
The utility model provides a visual window multistage sealing device suitable for high temperature and high pressure, and relates to the technical field of visual window sealing. The multistage sealing device comprises a visual window mounting base body, wherein a mounting through hole is formed in the visual window mounting base body in a penetrating manner; the visual glass is arranged in the mounting through hole, and the visual window pressing plate is pressed on one side of the visual glass; a primary seal gasket, the primary seal end being disposed between the viewing glass and the viewing window pressure plate; a secondary sealing gasket horizontally arranged between the visual window mounting base body and the visual glass; and the window cover plate is arranged on the upper side of the visual window pressing plate, and the window cover plate and the visual window are provided with a base body window pressing. The utility model has the advantages of good sealing performance and stable structure.
Description
Technical Field
The utility model relates to the technical field of visible window sealing, in particular to a multistage sealing device for a visible window under high temperature and high pressure.
Background
In some industrial reaction technologies or experimental apparatuses, it is necessary to observe the internal change, so a visual window is usually installed on the sidewall of the reaction chamber, and the phenomenon inside the reaction chamber can be effectively observed through the visual window, thereby providing a guarantee condition for further research on the transient phenomenon of the reaction chamber. For example, a visualization experiment related to reactor thermal hydraulics, a flow boiling visualization experiment, a manhole observation device in the chemical field and the like all need to be provided with a visual window to observe the internal change condition.
For the high-temperature high-pressure cavity, the sealing design of the visible window is especially important, the existing visible window structure is realized by combining a boss type sealing ring, however, the boss is not easy to process, and the visible crack is easy to appear in the position processing process of the boss, and the visible device is easy to fail in the using process.
To sum up, we propose a multistage sealing device for a visual window under high temperature and high pressure to solve the above technical problems, and simultaneously provide a good sealing scheme for cross sealing.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a multistage visual window sealing device suitable for high temperature and high pressure, and the device has the advantages of good sealing performance and stable structure.
The embodiment of the utility model is realized by the following steps:
the embodiment of the application provides a be applicable to multistage sealing device of visual window under high temperature high pressure, include:
the device comprises a visual window mounting base body, a reaction chamber and a reaction chamber, wherein the visual window mounting base body is a side wall of the reaction chamber and is provided with a mounting through hole in a penetrating manner;
a visual glass, which is arranged in the mounting through hole,
the visual window pressing plate is arranged in the mounting through hole, and the visual window pressing plate window is pressed on the outer side of the visual glass;
a primary seal gasket, the primary seal end being disposed between the viewing glass and the viewing window pressure plate;
the second-stage sealing gasket is in a circular ring shape and is arranged in the mounting through hole, and the visual window pressing plate is sleeved with the second-stage sealing gasket;
and the window cover plate is arranged on the outer side of the visual window pressing plate, and the window cover plate and the visual window are provided with a base body window pressing.
In some embodiments of the present invention, the installation through hole is a countersunk hole, the viewing glass is disposed at a small-aperture end of the installation through hole, the viewing window pressing plate is disposed at a large-aperture end of the installation through hole, and outer edges of the viewing window pressing plate and the viewing glass have the same size.
In some embodiments of the utility model, the primary seal is a graphite seal.
In some embodiments of the present invention, the secondary sealing gasket is a packing ring, an inner side of the secondary sealing gasket is connected to an outer side of the window pressing plate, and an outer side of the secondary sealing gasket is connected to a sidewall of the installation through hole.
In some embodiments of the present invention, the window cover plate and the window mounting base are detachably pressed against each other by bolts.
In some embodiments of the present invention, the window cover plate and the window pressing plate are detachably pressed by bolts.
In some embodiments of the present invention, the window cover plate and the visual window mounting base and the window cover plate and the visual window pressing plate are pressed by a plurality of bolts.
In some embodiments of the present invention, the window cover is T-shaped, a bottom of a longitudinal portion of the T-shaped window cover extends into the installation through hole to press against the window of the window pressing plate, and a diameter of the longitudinal portion of the window cover is equal to a diameter of the installation through hole.
In some embodiments of the present invention, the visual window pressing plate and the visual window cover plate are both provided with a visual through hole in the middle.
In some embodiments of the present invention, the visible glass is quartz glass.
Compared with the prior art, the embodiment of the utility model has at least the following advantages or beneficial effects:
a multi-stage sealing device for a visual window under high temperature and high pressure comprises:
the visual window mounting base is a side wall of the reaction chamber, and a mounting through hole penetrates through the visual window mounting base;
a visual glass, which is arranged in the mounting through hole,
the visual window pressing plate is arranged in the mounting through hole, and the visual window pressing plate window is pressed on one side of the visual glass;
a primary seal gasket, the primary seal end being disposed between the viewing glass and the viewing window pressure plate;
the second-stage sealing gasket is in a circular ring shape and is arranged in the mounting through hole, and the visual window pressing plate is sleeved with the second-stage sealing gasket;
and the window cover plate is arranged on the outer side of the visual window pressing plate and is connected with the visual window mounting base body.
In the embodiment of the application, when the chamber operates under the conditions of high temperature and high pressure, the indoor pressure exerts certain acting force on the visual glass, the visual glass exerts the acting force on the visual window pressing plate, the visual window pressing plate exerts the acting force on the visual window cover plate, and the visual window cover plate transmits the acting force to the visual window mounting base body so as to achieve the effect of bearing the visual glass. In the process, the design of the primary sealing gasket achieves the primary sealing of the visible window, so that the horizontal sealing is realized, and the leakage prevention effect is achieved; based on multi-stage sealing, cross sealing is realized. The window cover plate is connected with the visual window mounting base body, so that the acting force of the internal air pressure is transmitted to the visual window mounting base body through the visual glass, the visual window pressing plate and the window cover plate, and the visual window is stably mounted. The design of the utility model has the advantages of good sealing performance and stable structure.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is a schematic structural view of a multistage sealing device for a viewing window under high temperature and high pressure according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a visible glass according to an embodiment of the present invention;
FIG. 3 is a schematic view of a window cover plate according to an embodiment of the present invention;
FIG. 4 is a schematic structural view of a primary gasket according to an embodiment of the utility model;
FIG. 5 is a schematic view of a visual window press plate according to an embodiment of the present invention;
FIG. 6 is a schematic structural diagram of a secondary gasket according to an embodiment of the present invention.
Icon: 1-visible glass, 2-window cover plate, 3-visible window pressing plate, 4-visible window mounting base body, 5-primary sealing gasket and 6-secondary sealing gasket.
Detailed Description
In order to make the objects, 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 drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the embodiments of the present invention, it should be noted that, if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate an orientation or a positional relationship based on the orientation or the positional relationship shown in the drawings, or an orientation or a positional relationship which is usually placed when the products of the present invention are used, the description is only for convenience and simplicity, and the indication or the suggestion that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, the present invention should not be construed as being limited. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
Furthermore, the terms "horizontal", "vertical", "overhang" and the like do not require that the components be absolutely horizontal or overhang, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the description of the embodiments of the present invention, "a plurality" represents at least 2.
In the description of the embodiments of the present invention, it should be further noted that unless otherwise explicitly stated or limited, the terms "disposed," "mounted," "connected," and "connected" should be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
Examples
Referring to fig. 1 to 6, the present embodiment provides a multi-stage sealing device for a viewing window under high temperature and high pressure, including:
A visual window installation matrix 4, wherein the visual window installation matrix 4 is a side wall of the reaction chamber, and an installation through hole is formed in the visual window installation matrix 4 in a penetrating manner;
a visual glass 1, wherein the visual glass 1 is arranged in the mounting through hole,
a visual window pressing plate 3, wherein the visual window pressing plate 3 has a perspective function, the visual window pressing plate 3 is arranged in the mounting through hole, and the visual window pressing plate 3 is connected to one side of the visual glass 1;
a primary sealing gasket 5, the primary sealing end is arranged between the visual glass 1 and the visual window pressing plate 3;
a secondary sealing gasket 6, wherein the secondary sealing gasket 6 is annular, the secondary sealing gasket 6 is arranged in the installation through hole, and the secondary sealing gasket 6 is sleeved on the visual window pressing plate 3;
the window cover plate 2, the above-mentioned window cover plate 2 has perspective function, the above-mentioned window cover plate 2 is set up in the outside of the above-mentioned visual window pressing plate 3, the above-mentioned window cover plate 2 is connected with the above-mentioned visual window installation basal body 4.
It is worth explaining that two ends of the installation through hole respectively penetrate through two opposite sides of the visual window installation base body 4, the visual glass 1 is installed on the inner side of the installation through hole and is used for being in contact with high-pressure gas in the reaction chamber, the visual window pressing plate 3 and the visual glass 1 can be fixedly connected or detachably connected, and the two modes can be the same, for example, the visual window pressing plate 3 and the visual glass 1 can be glass and a frame structure of connecting glass, detailed description is omitted here, the visual window pressing plate 3 and the visual window cover plate 2 both have a perspective function, so that a person who is a relevant person can see through the visual window cover plate 2, the visual window pressing plate 3 and the visual glass 1 in sequence to see the reaction conditions in the reaction chamber clearly. When the visual window pressing plate 3 is arranged in the installation through hole, a certain gap is formed between the ring side of the visual window pressing plate 3 and the inner side of the installation through hole, and the secondary sealing gasket 6 is arranged in the gap, so that the purpose of sealing the gap is achieved, and the phenomenon that high-pressure gas in the reaction chamber leaks to influence the reaction condition in the reaction chamber is avoided. The window cover 2 and the window mounting base 4 may be fixedly connected or detachably connected, and will not be described in detail herein.
In this application embodiment, when carrying out the high-temperature high-pressure reaction in the reaction chamber, certain effort is applyed on visual glass 1 to the atmospheric pressure in the reaction chamber, and visual glass 1 is applyed on visual window clamp plate 3 with above-mentioned effort, and visual window clamp plate 3 is applyed window apron 2 with above-mentioned effort, and window apron 2 transmits on visual window installation base member 4 above-mentioned effort to reach the effect that visual glass 1 bore a weight of. In the process, the design of the primary sealing gasket 5 achieves the primary sealing of the visible window, and the leakage-proof effect is achieved; the window cover plate 2 is connected with the visual window installation base body 4, so that the acting force of the internal air pressure is transmitted to the visual window installation base body 4 through the visual glass 1, the visual window pressing plate 3 and the window cover plate 2, and the visual window is stably installed. The design of the utility model has the advantages of good sealing performance and stable structure.
In some embodiments of the present invention, the mounting hole is a countersunk hole, the viewing glass 1 is disposed at a small-aperture end of the mounting hole, the viewing window pressing plate 3 is disposed at a large-aperture end of the mounting hole, and the viewing window pressing plate 3 and the viewing glass 1 have the same aperture.
In the above embodiment, the mounting through hole is a counter bore, the counter bore is a hole with different calibers at two ends, specifically, one end of the counter bore is large, the other end of the counter bore is small, one end of the mounting through hole with a small caliber faces the inner side of the reaction chamber, one end of the mounting through hole with a large caliber faces the outer side of the reaction chamber, and the caliber of the outer side of the visible window pressing plate 3 is equal to the caliber of the outer side of the visible glass 1, so that the visible glass 1 and the visible window pressing plate 3 are stably connected. It should be noted that the caliber of the visible glass 1 is the same as that of the visible window pressing plate 3, which is only one embodiment of the present invention, and the specific structures of the visible glass 1 and the visible window pressing plate 3 are not limited, and in other embodiments, the visible window pressing plate 3 or/and the visible glass 1 may have other sizes as long as the connection between the two can be achieved, which will not be described in detail herein.
In some embodiments of the present invention, the primary seal 5 is a graphite seal.
In the above embodiments, the graphite gasket (expandable graphite (flexible graphite) is made of pure natural graphite by chemical treatment and high temperature treatment at 1000 ℃, which provides excellent heat resistance and chemical resistance, and can well provide high elasticity and low ductility characteristics to the gasket) is made of pure graphite or metal (toothed plate, flat plate, mesh) reinforced graphite plate by cutting or punching, has a plurality of excellent sealing properties, such as thermal stability, self-lubrication, corrosion resistance, non-aging, non-brittleness, etc., can be stably used for a long time under severe working conditions, and requires little maintenance. The lining material can be different sealing gasket metal sheets. The type can be selected from no edge-covering, inner edge-covering, outer edge-covering and inner and outer edge-covering. The graphite cutting gasket is punched or cut from a pure graphite plate, has good corrosion resistance, high/low temperature resistance, good compression resilience and high strength, and various circular complex geometric gaskets are widely used for pipelines, valves, pumps, pressure vessels, heat exchangers, condensers, generators, air compressors, exhaust pipes, refrigerators and the like. The graphite gasket had the following characteristics: 1. the sealing performance of the flexible graphite gasket is almost kept unchanged in the range from extremely low temperature to high temperature of 400 ℃; 2. flexible graphite gaskets have excellent chemical resistance to almost all liquids (except for strong oxidizing acids, etc.); 3. due to the low cold deformation and ductility, over-tightening of the mounting has no effect on the flexible graphite gasket. The method is particularly suitable for the environment with high temperature and high pressure.
In some embodiments of the present invention, the secondary gasket 6 is a packing ring, an inner side of the secondary gasket 6 is connected to an outer side of the window pressing plate 3, and an outer side of the secondary gasket 6 is connected to a sidewall of the installation through hole.
In the above embodiment, the secondary seal 6 is a packing ring, and the packing ring is a graphite packing ring, and the graphite packing ring has at least the following characteristics: 1. the gasket is resistant to high temperature and low temperature, the application range in a non-oxidizing medium is centigrade, the gasket can reach 400 ℃ in an oxidizing medium, and the gasket is resistant to corrosion and various corrosive media, but has certain limitation when used in a strong oxidizing medium, the limit pressure of the gasket is 1.33X10<59MPa, and good sealing can be ensured even in severe temperature alternation and pressure alternation; asbestos gaskets often leak liquid media due to capillary action, while flexible graphite gaskets have good impermeability; the flange sealing surface does not need finish machining, and the sealing can be ensured as long as the surface roughness reaches RA6.3mm; the gasket is soft and has good elastic-plastic property, so that the pressing force of the bolt is small, good sealing can be ensured only by slightly pressing the gasket, and the installation is more convenient; 7. the sealing surface is not stained.
In some embodiments of the present invention, the window cover 2 and the window mounting base 4 are detachably connected by bolts.
In the above embodiment, the connection manner of the bolts can realize quick installation or disassembly of the window cover plate 2 and the visual window installation base 4, and the connection manner of the bolts enables the window cover plate 2 to be fixed better.
In some embodiments of the present invention, the window cover plate 2 and the window pressing plate 3 are detachably pressed by bolts.
In the above embodiment, the connection manner of the bolts can realize the quick installation or disassembly of the window cover plate 2 and the visual window pressing plate 3, and the connection manner of the bolts enables the fixing effect of the visual window pressing plate 3 to be better.
In some embodiments of the present invention, the window cover plate 2 and the visual window mounting base 4, and the window cover plate 2 and the visual window pressing plate 3 are connected by a plurality of bolts.
In the above embodiment, the plurality of sets of bolts between the window cover plate 2 and the visual window mounting base 4 are uniformly distributed along the circumferential direction of the window cover plate 2 at intervals, the plurality of sets of bolts for quality inspection of the window cover plate 2 and the visual window pressing plate 3 are uniformly distributed along the circumferential direction of the window cover plate 2 at intervals, and the calibers of the two sets of circumferential bolts are different.
In some embodiments of the present invention, the window cover plate 2 is T-shaped, a bottom of a longitudinal portion of the T-shaped window cover plate 2 extends into the installation through hole to connect with the window pressing plate 3, and a diameter of the longitudinal portion of the window cover plate 2 is equal to a diameter of the installation through hole.
In the above embodiment, the bolt connecting the window cover plate 2 and the visual window mounting base 4 is disposed outside the transverse portion of the T-shaped window cover plate 2, and the bolt connecting the window cover plate 2 and the visual window pressing plate 3 is disposed inside the T-shaped window cover plate 2 and penetrates the longitudinal portion of the T-shaped window cover plate 2.
In some embodiments of the present invention, the visual window pressing plate 3 and the visual window cover plate 2 are both provided with a visual through hole in the middle.
In the above embodiment, the design of the visual through hole allows the relevant worker to observe the reaction condition in the reaction chamber through the visual glass 1 after passing through the visual through hole.
In some embodiments of the present invention, the above-mentioned visible glass 1 is quartz glass.
In the above examples, the quartz glass is made of natural crystalline quartz (crystal or pure silica) or synthetic silane by high temperature melting. The molten product has excellent processability, and in an extremely high viscosity range, the tube and rod can be subjected to hot working as in the case of ordinary glass fine working, and can also be subjected to high-speed machining using an abrasive tool made of diamond or silicon carbide, thereby making various instruments and special products having complicated shapes. The quartz glass has extremely low thermal expansion coefficient, high temperature resistance, excellent chemical stability, excellent electrical insulation, low and stable ultrasonic delay performance, optimal ultraviolet spectrum transmission performance, visible light transmission performance and near infrared spectrum transmission performance, and mechanical performance higher than that of common glass.
In summary, the embodiment of the present invention provides a multi-stage sealing device for a window under high temperature and high pressure, which at least has the following technical effects:
in this application embodiment, when carrying out the high-temperature high-pressure reaction in the reaction chamber, certain effort on visual glass 1 is applyed to atmospheric pressure in the reaction chamber, and visual glass 1 is applyed above-mentioned effort on visual window clamp plate 3, and visual window clamp plate 3 is applyed above-mentioned effort to window apron 2, and window apron 2 transmits above-mentioned effort for visual window installation base member 4 on to reach the effect that visual glass 1 bore. In the process, the design of the primary sealing gasket 5 achieves the primary sealing of the visible window, and the leakage-proof effect is achieved; the window cover plate 2 is connected with the visual window installation base body 4, so that the acting force of the internal air pressure is transmitted to the visual window installation base body 4 through the visual glass 1, the visual window pressing plate 3 and the window cover plate 2, and the stable installation of the visual window is achieved. The design of the utility model has the advantages of good sealing performance and stable structure.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A multistage sealing device of visual window suitable for high temperature and high pressure is characterized by comprising:
the visual window mounting base is a side wall of the observation chamber, and a mounting through hole is formed in the visual window mounting base in a penetrating manner;
the visual glass is arranged in the mounting through hole,
the visual window pressing plate is arranged in the mounting through hole, and the visual window pressing plate presses the outer side of the visual glass;
the primary sealing pad is arranged between the visual glass and the visual window pressing plate;
the secondary sealing gasket is in a circular ring shape and is arranged between the mounting through hole and the visual glass;
the window cover plate is arranged on the upper side of the visual window pressing plate, and the window cover plate and the visual window are provided with a base body window pressing device.
2. The multistage sealing device of claim 1, wherein the installation through hole is a countersunk hole, the viewing glass is disposed at the small-aperture end of the installation through hole, the viewing window pressing plate is disposed at the large-aperture end of the installation through hole, and the outer edges of the viewing window pressing plate and the viewing glass have the same size.
3. The multi-stage sealing device for the viewing window under high temperature and high pressure as claimed in claim 1, wherein the primary sealing gasket is a graphite sealing gasket.
4. The multi-stage sealing device for the visual window under the high temperature and the high pressure as claimed in claim 3, wherein the secondary sealing gasket is a packing ring, the inner side of the secondary sealing gasket is connected with the outer side of the visual window pressing plate, and the outer side of the secondary sealing gasket is connected with the side wall of the installation through hole.
5. The multistage sealing device for the visual window under high temperature and high pressure as claimed in claim 1, wherein the visual window cover plate and the visual window installation base body are detachably pressed by a bolt.
6. The multistage sealing device for the visual window under high temperature and high pressure as claimed in claim 5, wherein the visual window cover plate and the visual window pressing plate are detachably pressed by a bolt.
7. The multi-stage sealing device for the visual window under high temperature and high pressure as claimed in claim 6, wherein the window cover plate and the visual window mounting base body and the visual window cover plate and the visual window pressing plate are pressed by a plurality of bolts.
8. The multistage sealing device of claim 1, wherein the window cover plate is T-shaped, a bottom of a longitudinal portion of the T-shaped window cover plate extends into the installation through hole to press against the window of the window pressing plate, and a diameter of the longitudinal portion of the window cover plate is equal to a diameter of the installation through hole.
9. The multistage sealing device of claim 1, wherein the window pressing plate and the window cover plate have through holes in the middle.
10. The multi-stage sealing device for a high temperature and high pressure viewing window of claim 1, wherein the viewing glass is quartz glass.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121139017.7U CN216605170U (en) | 2021-05-25 | 2021-05-25 | Multistage sealing device suitable for visual window under high temperature and high pressure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121139017.7U CN216605170U (en) | 2021-05-25 | 2021-05-25 | Multistage sealing device suitable for visual window under high temperature and high pressure |
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| Publication Number | Publication Date |
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| CN216605170U true CN216605170U (en) | 2022-05-27 |
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| CN202121139017.7U Active CN216605170U (en) | 2021-05-25 | 2021-05-25 | Multistage sealing device suitable for visual window under high temperature and high pressure |
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| CN (1) | CN216605170U (en) |
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2021
- 2021-05-25 CN CN202121139017.7U patent/CN216605170U/en active Active
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