CN203656180U - Wedge-shaped self-tightening type sealing part for manhole door of pressure stabilizer - Google Patents
Wedge-shaped self-tightening type sealing part for manhole door of pressure stabilizer Download PDFInfo
- Publication number
- CN203656180U CN203656180U CN201320570062.7U CN201320570062U CN203656180U CN 203656180 U CN203656180 U CN 203656180U CN 201320570062 U CN201320570062 U CN 201320570062U CN 203656180 U CN203656180 U CN 203656180U
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- sealing
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- wedge shape
- sealing part
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Abstract
The utility model relates to the technical field of sealing devices, particularly to a wedge-shaped self-tightening type sealing part for a manhole door of a pressure stabilizer. The sealing part comprises a container cover plate, wherein a container is correspondingly arranged at the lower end of the container cover plate, a sealing part mounting disc is arranged inside the container, a wedge-shaped mounting groove is formed in the outer wall of the upper end of the sealing part mounting disc, a wedge-shaped sealing ring is arranged inside the wedge-shaped mounting groove and comprises a flexible graphite ring body, a metal full-wrapping edge is arranged at the upper end of the flexible graphite ring body, and a metal semi-wrapping edge is arranged at the lower end of the flexible graphite ring body. According to the sealing part, flexible graphite is used as a base material, during mounting, the sealing part is molded into a wedge shape by a wedge-shaped groove of a flange, and an upward thrust force is exerted on the sealing part with the continuous rising of the inner pressure of the container during actual running, so that the sealing is tightened under pressure, and the sealing effect is better; when the temperature and the inner pressure are reduced, deformation of the flange is compensated by the high resilience of the flexible graphite sealing ring, and a larger gap exists between the wedge-shaped sealing ring and the inner wall of the container, so that the sealing part is convenient to mount, and the leakage rate is greatly reduced.
Description
Technical field
The utility model relates to seal arrangement technical field, particularly a kind of voltage stabilizer manhole door wedge shape self-energized seal part.
Background technique
Voltage stabilizer is that the pressure in a loop is maintained on the setting valve of 15.5MPa, to prevent that coolant water from vaporizing in a loop.The water of contain two-phase state in voltage stabilizer, water and steam, all at the corresponding same temperature of definite pressure, relies on shower valve and heater to carry out pressure adjusting; Next is the rapid variation of available buffer one circuit system water capacity.Voltage stabilizer is generally made up of pressurized container, shell inner member, support unit, electric heater group, liquid level, temperature transducer and fixed block etc.And become miter angle Position Design one manhole door in voltage stabilizer body side.This place's conventional seals adopts a metal ring, needs larger seal load, and when voltage stabilizer is normally worked, along with temperature and pressure constantly alternately changes, metallic packing ring expands with heat and contract with cold, and is therefore often accompanied by the generation of leakage.This place's Sealing is installed to only depend on manually and is completed, and installation is difficult, leak-down rate is large.
Summary of the invention
The purpose of this utility model is for the deficiencies in the prior art, provides one not only easy for installation, and the voltage stabilizer manhole door wedge shape self-energized seal part that greatly reduces of leak-down rate.
For achieving the above object, the utility model is by the following technical solutions: a kind of voltage stabilizer manhole door wedge shape self-energized seal part, comprise container cover plate, container cover plate lower end correspondence is provided with container, is provided with Sealing mounting disc in container, and Sealing mounting disc upper end outer wall offers wedge shape mounting groove, in this wedge shape mounting groove, be provided with wedge shape sealing ring, wedge shape sealing ring comprises Expanded graphite ring body, and Expanded graphite ring body upper end is provided with metal whole edge covering, and Expanded graphite ring body lower end is provided with metal half bound edge.
Wherein, the one side that described Expanded graphite ring body and Sealing mounting disc are sticked is provided with the angle being equipped with wedge shape mounting groove.
Wherein, between described container cover plate and wedge shape sealing ring and between container cover plate and container, be all connected by screw rod.
The utility model beneficial effect is: the utility model comprises container cover plate, container cover plate lower end correspondence is provided with container, in container, be provided with Sealing mounting disc, Sealing mounting disc upper end outer wall offers wedge shape mounting groove, in this wedge shape mounting groove, be provided with wedge shape sealing ring, wedge shape sealing ring comprises Expanded graphite ring body, Expanded graphite ring body upper end is provided with metal whole edge covering, Expanded graphite ring body lower end is provided with metal half bound edge, the utility model adopts the wedge shape self-sealing ring taking Expanded graphite as base material, in installation process, utilize flange vee-cut that Sealing is shaped to wedge shape.In actual motion, along with the continuous rising of pressing in container, Sealing is subject to a thrust upwards, makes sealed pressure self-tightening, and sealing effect is better, and when temperature reduces, the distortion that when interior pressure reduces, the high resilience of flexible graphite sealing ring is flange is compensated.This kind of sealing configuration is simple and reliable, and wedge shape sealing ring and container inner wall have larger gap, easy for installation, greatly reduces leak-down rate.
brief description of the drawings:
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the structural representation of wedge shape sealing ring in the utility model.
reference character:
1---container cover plate 2---container
3---Sealing mounting disc 4---wedge shape mounting groove
5---wedge shape sealing ring 6---Expanded graphite body.
Embodiment
With embodiment, the utility model is described in further detail below, is not practical range of the present utility model is limited to this.
As shown in Figure 1, a kind of voltage stabilizer manhole door wedge shape self-energized seal part, comprise container cover plate 1, container cover plate 1 lower end correspondence is provided with container 2, in container 2, be provided with Sealing mounting disc 3, Sealing mounting disc 3 upper end outer walls offer wedge shape mounting groove 4, in this wedge shape mounting groove 4, be provided with wedge shape sealing ring 5, wedge shape sealing ring 5 comprises Expanded graphite ring body 6, Expanded graphite ring body 6 upper ends are provided with metal whole edge covering, Expanded graphite ring body 6 lower ends are provided with metal half bound edge, the utility model adopts the wedge shape self-sealing ring taking Expanded graphite as base material, in installation process, utilize flange vee-cut that Sealing is shaped to wedge shape.In actual motion, along with the continuous rising of container 2 interior pressures, Sealing is subject to a thrust upwards, makes sealed pressure self-tightening, and sealing effect is better, and when temperature reduces, the distortion that when interior pressure reduces, the high resilience of flexible graphite sealing ring is flange is compensated.This kind of sealing configuration is simple and reliable, and wedge shape sealing ring 5 has larger gap with container 2 inwalls, easy for installation, greatly reduces leak-down rate.
In the present embodiment, described Expanded graphite ring body 6 is provided with the one side that Sealing mounting disc 3 is sticked the angle being equipped with wedge shape mounting groove 4, the interior pressure of this angle receptor 2 and Expanded graphite ring body 6 and Sealing mounting disc 3 extruding form, wherein, between described container cover plate 1 and wedge shape sealing ring 5 and between container cover plate 1 and container 2, be all connected by screw rod, connect reliable.
The above is only preferred embodiments of the present utility model, and the equivalence of doing according to structure, feature and principle described in the utility model patent claim therefore all changes or modifies, and is included in the utility model patent claim.
Claims (3)
1. a voltage stabilizer manhole door wedge shape self-energized seal part, it is characterized in that: comprise container cover plate, container cover plate lower end correspondence is provided with container, in container, be provided with Sealing mounting disc, Sealing mounting disc upper end outer wall offers wedge shape mounting groove, in this wedge shape mounting groove, is provided with wedge shape sealing ring, and wedge shape sealing ring comprises Expanded graphite ring body, Expanded graphite ring body upper end is provided with metal whole edge covering, and Expanded graphite ring body lower end is provided with metal half bound edge.
2. a kind of voltage stabilizer manhole door wedge shape self-energized seal part according to claim 1, is characterized in that: the one side that described Expanded graphite ring body and Sealing mounting disc are sticked is provided with the angle being equipped with wedge shape mounting groove.
3. a kind of voltage stabilizer manhole door wedge shape self-energized seal part according to claim 1, is characterized in that: between described container cover plate and wedge shape sealing ring and between container cover plate and container, be all connected by screw rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320570062.7U CN203656180U (en) | 2013-09-16 | 2013-09-16 | Wedge-shaped self-tightening type sealing part for manhole door of pressure stabilizer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320570062.7U CN203656180U (en) | 2013-09-16 | 2013-09-16 | Wedge-shaped self-tightening type sealing part for manhole door of pressure stabilizer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203656180U true CN203656180U (en) | 2014-06-18 |
Family
ID=50922568
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320570062.7U Expired - Fee Related CN203656180U (en) | 2013-09-16 | 2013-09-16 | Wedge-shaped self-tightening type sealing part for manhole door of pressure stabilizer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203656180U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103498935A (en) * | 2013-09-16 | 2014-01-08 | 宁波天生密封件有限公司 | Wedged self-tightening sealing piece of manhole door of pressure stabilizer |
-
2013
- 2013-09-16 CN CN201320570062.7U patent/CN203656180U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103498935A (en) * | 2013-09-16 | 2014-01-08 | 宁波天生密封件有限公司 | Wedged self-tightening sealing piece of manhole door of pressure stabilizer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140618 Termination date: 20140916 |
|
| EXPY | Termination of patent right or utility model |