CN209909165U - Mechanical sealing device for glass lining reaction kettle - Google Patents
Mechanical sealing device for glass lining reaction kettle Download PDFInfo
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- CN209909165U CN209909165U CN201920489853.4U CN201920489853U CN209909165U CN 209909165 U CN209909165 U CN 209909165U CN 201920489853 U CN201920489853 U CN 201920489853U CN 209909165 U CN209909165 U CN 209909165U
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Abstract
The utility model relates to a ward off mechanical seal device for glass reation kettle, including axle sleeve, corrosion-resistant short cover, go up quiet ring seat, spring holder subassembly, cooling jacket subassembly, seal assembly, quiet ring base and flange. The upper stationary ring seat is sleeved at the upper end of the shaft sleeve; the cooling sleeve assembly is tightly attached to the lower end face of the upper static ring seat; the connecting flange with the enamel layer or the polytetrafluoroethylene lining is arranged close to the lower end face of the cooling sleeve assembly; the static ring base is arranged in a mounting cavity formed between the connecting flange and the cooling sleeve assembly; the spring seat assembly is arranged in a mounting cavity formed between the cooling sleeve assembly and the shaft sleeve; the two sealing components are respectively arranged close to two ends of the spring seat component; the corrosion-resistant short sleeve is arranged below the shaft sleeve and is axially constrained through an inner inclined plane structure of the spring seat assembly. The utility model discloses can effectively prevent the corruption of sealing member, the deformation and the dry running of sealing end face.
Description
Technical Field
The utility model relates to a mechanical seal device, in particular to mechanical seal device for glass lining reaction kettle.
Background
The medium in the glass lining reaction kettle is mostly corrosive liquid such as various acid, alkali, salt solution and the like, and the medium is easy to generate corrosive gas phase medium when the medium is subjected to chemical reaction in the kettle. The top-loading mechanical seal works in the gas phase medium for a long time, and is easy to corrode and dry run. Meanwhile, when some manufacturers customize the mechanical seal, the materials in the glass lining reaction kettle cannot be completely determined, so that the materials of the mechanical seal contacting the medium are difficult to select, and if expensive metals are selected, although the application range can be properly improved, the cost of the mechanical seal is greatly increased, and the application range is still limited.
In the whole production process of the medium from the inlet to the outlet of the kettle, the pressure, the temperature and the like are changed along with time. Under the action of pressure circulation and cold-hot circulation, the sealing end face of the mechanical seal is easy to deform, and the sealing performance is reduced; meanwhile, under the dual actions of high-temperature working environment and frictional heat generation, a liquid film on the sealing end face is easy to vaporize, and the dry running condition is generated.
Disclosure of Invention
The utility model discloses main aim at solves above-mentioned sealing member corruption, seal end face deformation and dry operation problem, provides a mechanical seal device for ward off glass reation kettle, guarantees that mechanical seal can normal operation in the life cycle.
The utility model provides a technical scheme that above-mentioned technical problem adopted is: a mechanical sealing device for a glass lining reaction kettle comprises a shaft sleeve, a corrosion-resistant short sleeve, an upper static ring seat, a spring seat assembly, a cooling sleeve assembly, two pairs of sealing assemblies, a static ring base and a connecting flange, wherein the two pairs of sealing assemblies are respectively composed of a static ring and a moving ring. The upper stationary ring seat is sleeved at the upper end of the shaft sleeve, the lower end face of the upper stationary ring seat is tightly attached to the cooling sleeve assembly, the connecting flange is tightly attached to the lower end face of the cooling sleeve assembly, the stationary ring seat is arranged in an installation cavity formed between the connecting flange and the cooling sleeve assembly, the spring seat assembly is arranged in an annular installation cavity formed between the cooling sleeve assembly and the shaft sleeve, two sealing assemblies are tightly attached to two ends of the spring seat assembly respectively, the upper stationary ring is fixedly sleeved in the installation cavity formed between the shaft sleeve and the upper stationary ring seat, the upper movable ring is arranged above the spring seat assembly, the upper end face of the upper movable ring is abutted to the lower end face of the upper stationary ring, the lower stationary ring is fixedly sleeved in the installation cavity formed between the stationary ring seat and the shaft, the lower movable ring is arranged below the spring seat assembly, and the lower end face of the lower movable ring is abutted to the upper end face of the lower stationary ring.
Preferably, the lower end face and the inner side face of the connecting flange are provided with a U-shaped enamel layer or a poly-tetraethylene bushing.
Preferably, the corrosion-resistant short sleeve is arranged below the shaft sleeve, and the outer inclined surface of the corrosion-resistant short sleeve is abutted to the inner inclined surface of the spring seat assembly.
Preferably, an O-shaped sealing ring is respectively arranged between the lower static ring and the static ring base and between the lower static ring and the cooling inner sleeve.
Preferably, a sealing liquid chamber is formed among the cooling jacket assembly, the spring seat assembly and the sealing assembly, and the chamber is connected with a matched sealing liquid circulating system through a sealing liquid inlet and a sealing liquid outlet which are arranged on the upper static ring seat.
Preferably, the cooling jacket assembly comprises a cooling outer jacket and a cooling inner jacket, an annular cooling liquid chamber is formed between the cooling inner jacket and the cooling outer jacket, and the annular cooling liquid chamber is connected with a matched cooling liquid circulating system through a cooling liquid inlet and a cooling liquid outlet which are arranged on the cooling outer jacket.
Preferably, a corrosion-resistant gasket is arranged between the static ring base and the connecting flange, and corrosion-resistant O-shaped sealing rings are arranged at the joints of other parts.
The utility model has the advantages that: the enamel layer or the polytetrafluoroethylene lining arranged on the connecting flange has wide corrosion resistance, so that the metal part of the connecting flange is effectively prevented from contacting with corrosive media, and the corrosion-resistant cost is reduced; the corrosion-resistant short sleeve, the static ring base and the sealing assembly are made of materials with wide corrosion resistance (such as silicon carbide, graphite and polytetrafluoroethylene), and the corrosion-resistant short sleeve, the static ring base and the sealing assembly are sealed by gaskets or O-shaped sealing rings with non-corrosion-resistant parts, so that the non-corrosion-resistant parts can be effectively prevented from contacting with corrosive media; the lower static ring adopts a double-O-shaped ring supporting mode and the upper static ring adopts a floating structure (the lower end surface is not axially constrained by the upper static ring seat), so that the deformation of the sealing end surface can be reduced, and the end surface is always kept in the best fit state; when the mechanical seal runs, the sealing liquid cavity is filled with sealing liquid, the pressure of the sealing liquid is set to be higher than the medium pressure in the kettle, so that a liquid film is filled between the sealing end faces (the contact part of the moving ring and the static ring), and meanwhile, the temperature of the sealing liquid is reduced through cooling of the cooling liquid in the cooling liquid cavity, and the dry running is avoided.
Drawings
The present invention will be further explained with reference to the drawings and examples.
Fig. 1 is a schematic view of the present invention.
In the figure: 1. the cooling device comprises a connecting flange, an enamel layer or a polytetrafluoroethylene lining 1A, a gasket 2, a lower static ring 3, a lower movable ring 4, a corrosion-resistant short sleeve 5, a spring seat assembly 6, an upper movable ring 7, an upper static ring 8, a shaft sleeve 9, an upper static ring seat 10, a cooling sleeve assembly 11, a cooling jacket 11A, a cooling inner sleeve 11B, an O-shaped sealing ring 12, a static ring base 13, a sealing liquid chamber 14A, a sealing liquid outlet 14B, a sealing liquid inlet 14C, a cooling liquid chamber 15A, a cooling liquid outlet 15B and a cooling liquid inlet 15C.
Detailed Description
As shown in figure 1, the specific embodiment of the utility model is a mechanical sealing device for glass lining reaction kettle, comprising a shaft sleeve 9, a corrosion-resistant short sleeve 5, an upper static ring seat 10, a spring seat component 6, a cooling jacket component 11, two sealing components respectively composed of a static ring and a moving ring, a static ring seat 13 and a connecting flange 1. The upper static ring seat 10 is sleeved at the upper end of the shaft sleeve 9, the cooling sleeve assembly 11 is arranged close to the lower end face of the upper static ring seat 10, the connecting flange 1 is arranged close to the lower end face of the cooling sleeve assembly 11, the static ring base 13 is arranged in an installation cavity formed between the connecting flange 1 and the cooling sleeve assembly 11, and the spring seat assembly 6 is arranged in an annular installation cavity formed between the cooling sleeve assembly 11 and the shaft sleeve 9; the two sealing components are respectively arranged close to two ends of the spring seat component 6, the upper static ring 8 is fixedly sleeved in an installation cavity formed between the shaft sleeve 9 and the upper static ring seat 10, the upper dynamic ring 7 is arranged above the spring seat component 6, and the upper end surface of the upper dynamic ring 7 is abutted against the lower end surface of the upper static ring 8; the fixed suit of quiet ring 3 is down in the installation cavity that forms between quiet ring base 13 and axle, and lower rotating ring 4 sets up in the below of spring holder subassembly 6, and the lower terminal surface of lower rotating ring 4 offsets with the up end of quiet ring 3 down.
Preferably, a U-shaped enamel layer or a poly-tetra-ethylene lining 1A is arranged on the lower end surface and the inner side surface of the connecting flange 1, which are in contact with the medium.
Preferably, the corrosion-resistant short sleeve 5 is arranged below the shaft sleeve 9, and an outer inclined surface of the corrosion-resistant short sleeve 5 is abutted against an inner inclined surface of the spring seat assembly 6, so that the axial restraint of the corrosion-resistant short sleeve 5 is realized.
Preferably, an O-ring 12 is respectively arranged between the lower stationary ring 3 and the stationary ring base 13 and between the lower stationary ring 3 and the cooling inner sleeve 11B, that is, the lower stationary ring adopts a double O-ring supporting mode, so that the floatability of the lower stationary ring is improved.
Preferably, a sealing liquid chamber 14A is formed between the cooling jacket assembly 11, the spring seat assembly 6 and the sealing assembly, and the chamber is connected with a matched sealing liquid circulating system through a sealing liquid inlet 14C and a sealing liquid outlet 14B which are arranged on the upper stationary ring seat 10.
Preferably, the cooling jacket assembly 11 is composed of an outer cooling jacket 11A and an inner cooling jacket 11B, and a cooling liquid chamber 15A is formed between the inner cooling jacket 11B and the outer cooling jacket 11A, and the annular chamber is connected with a matched cooling liquid circulation system through a cooling liquid inlet 15C and a cooling liquid outlet 15B arranged on the outer cooling jacket 11A.
Preferably, a corrosion-resistant gasket 2 is arranged between the stationary ring base 13 and the connecting flange 1, and corrosion-resistant O-shaped sealing rings are arranged at the joints of other parts.
Claims (7)
1. The utility model provides a mechanical seal device for ward off glass reactor which characterized in that: the cooling device comprises a shaft sleeve, a corrosion-resistant short sleeve, an upper static ring seat, a spring seat assembly, a cooling sleeve assembly, two sealing assemblies, a static ring base and a connecting flange, wherein each sealing assembly is composed of a static ring and a moving ring; the upper stationary ring seat is sleeved at the upper end of the shaft sleeve, the lower end face of the upper stationary ring seat is tightly attached to the cooling sleeve assembly, the connecting flange is tightly attached to the lower end face of the cooling sleeve assembly, the stationary ring seat is arranged in an installation cavity formed between the connecting flange and the cooling sleeve assembly, the spring seat assembly is arranged in an annular installation cavity formed between the cooling sleeve assembly and the shaft sleeve, two sealing assemblies are respectively tightly attached to two ends of the spring seat assembly, the upper stationary ring is fixedly sleeved in the installation cavity formed between the shaft sleeve and the upper stationary ring seat, the upper movable ring is arranged above the spring seat assembly, the upper end face of the upper movable ring is abutted to the lower end face of the upper stationary ring, the lower stationary ring is fixedly sleeved in the installation cavity formed between the stationary ring seat and the shaft, the lower movable ring is arranged below the spring seat assembly, and the lower end face of the lower movable ring is abutted to the upper end face of the lower stationary ring.
2. The mechanical sealing device for glass-lined reaction vessels according to claim 1, wherein: the lower end surface and the inner side surface of the connecting flange are provided with a U-shaped enamel layer or a poly-tetra-ethylene lining.
3. The mechanical sealing device for glass-lined reaction vessels according to claim 1, wherein: and a corrosion-resistant short sleeve is arranged below the shaft sleeve, and the outer inclined surface of the corrosion-resistant short sleeve is abutted against the inner inclined surface of the spring seat component.
4. The mechanical sealing device for glass-lined reaction vessels according to claim 1, wherein: and an O-shaped sealing ring is respectively arranged between the lower static ring and the static ring base and between the lower static ring and the cooling inner sleeve.
5. The mechanical sealing device for glass-lined reaction vessels according to claim 1, wherein: a sealing liquid cavity is formed among the cooling sleeve assembly, the spring seat assembly and the sealing assembly, and a sealing liquid inlet and a sealing liquid outlet are formed in the upper static ring seat.
6. The mechanical sealing device for glass-lined reaction vessels according to claim 1, wherein: the cooling jacket assembly consists of a cooling outer jacket and a cooling inner jacket, a cooling liquid cavity is formed between the cooling inner jacket and the cooling outer jacket, and a cooling liquid inlet and a cooling liquid outlet are arranged on the cooling outer jacket.
7. The mechanical sealing device for glass-lined reaction vessels according to claim 1, wherein: and a corrosion-resistant gasket is arranged between the static ring base and the connecting flange, and corrosion-resistant O-shaped sealing rings are arranged at the joints of other parts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920489853.4U CN209909165U (en) | 2019-04-12 | 2019-04-12 | Mechanical sealing device for glass lining reaction kettle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920489853.4U CN209909165U (en) | 2019-04-12 | 2019-04-12 | Mechanical sealing device for glass lining reaction kettle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209909165U true CN209909165U (en) | 2020-01-07 |
Family
ID=69035926
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920489853.4U Active CN209909165U (en) | 2019-04-12 | 2019-04-12 | Mechanical sealing device for glass lining reaction kettle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209909165U (en) |
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2019
- 2019-04-12 CN CN201920489853.4U patent/CN209909165U/en active Active
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