CN204250692U - A kind of manhole with hermetically-sealed construction - Google Patents
A kind of manhole with hermetically-sealed construction Download PDFInfo
- Publication number
- CN204250692U CN204250692U CN201420533900.8U CN201420533900U CN204250692U CN 204250692 U CN204250692 U CN 204250692U CN 201420533900 U CN201420533900 U CN 201420533900U CN 204250692 U CN204250692 U CN 204250692U
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- manhole
- cylindrical shell
- throat
- pore
- hermetically
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Abstract
The utility model discloses a kind of manhole with hermetically-sealed construction, it comprises people's pore-throat or manhole cylindrical shell that container and container are arranged, in described people's pore-throat or manhole cylindrical shell, be provided with secondary and once sealing structure from outside to inside successively.The utility model good sealing effect, can eliminate manhole inside and build up material, applied widely, can be used for material is in the container of gas, liquid and solid, also can transform the old manhole that material requirement is built up few in existing inside.
Description
Technical field
The utility model relate to a kind of manhole with hermetically-sealed construction, belongs to the maintenance corollary apparatus field of container.
Background technology
At petrochemical industry, the manhole of current inner band central layer roughly has two kinds of purposes, be the high-order manhole for normal pressure floating roof tank, this type of manhole be set and can reduce crude oil gathering in manhole on the one hand, can prevent the sealing arrangement on floating plate from being scratched through manhole on the other hand.The common structure of this kind of manhole is in manhole, add interior chip, its shortcoming is chip and manhole internal diameter because the reason of installing generally has comparatively wide arc gap, Long-Time Service can damage floating plate sealing, will gather simultaneously and be full of crude oil in manhole, the use of manhole during inconvenience maintenance.
Another purposes of the manhole of inner band central layer is in the Pressure Vessels such as some absorption chambers, and its effect is to prevent material that particle is very little or liquid in manhole inner accumulated, improving the Occupation coefficient of material.Its shortcoming of manhole of this type of band central layer is equally also can not carry out effective sealing to install, the object of the completely isolated material of out of reach.
Through retrieval, patent CN 202924164 U discloses a kind of belt carcass manhole, its structure be the turning gear of original belt carcass manhole L shape pivoted arm end and rise to the bait between top and set up straight line pivoted arm, rotatably be connected by adapter shaft between straight line pivoted arm with L shape pivoted arm end, this structure can make the gap smaller of central layer diameter and manhole internal diameter, but can not eliminate gap completely.This structure can not be used for the operating mode that Pressure Vessel or material are solid small particles, liquid, gas simultaneously, range of use relative narrower.
Utility model content
The purpose of this utility model is to provide a kind of manhole of band hermetically-sealed construction of good sealing effect.
For achieving the above object, solution of the present utility model is:
With a manhole for hermetically-sealed construction, comprise people's pore-throat or manhole cylindrical shell that container and container are arranged, in described people's pore-throat or manhole cylindrical shell, be provided with secondary and once sealing structure from outside to inside successively.
Described secondary seal structure comprises sealing member and seal ring; The internal diameter of sealing body and described people's pore-throat or manhole cylindrical shell is equipped with, and is provided with seal ring between the two.
Described once sealing structure comprises curved baffle and baffle plate attaching parts; The arc-shaped curved surface of this curved baffle is consistent with container inner wall curved surface, this curved baffle and baffle plate attaching parts affixed, and baffle plate attaching parts is threaded with the sealing member of secondary seal structure.
Described sealing member upper end center is provided with connection pipe, this connection pipe by gusset and sealing member inwall affixed and connection pipe has mounting hole.
Bracing or strutting arrangement is provided with between the blind flange of described people's pore-throat or manhole cylindrical shell and secondary seal structure.
The utility model adopts twice hermetically-sealed construction, the once sealing structure be made up of curved baffle, manhole cylindrical shell can stop large granular materials to enter manhole cylindrical shell, and the secondary seal structure be made up of sealing member, seal ring and manhole cylindrical shell then can stop gas or liquid to enter manhole cylindrical shell.The gas, liquid, solid material that pressure container or non-pressure vessel are stored all can effectively, failure-free isolates.
The utility model good sealing effect, substantially can eliminate manhole inside and build up material; Applied widely, can be used for material is in the container of gas, liquid and solid; Install simple, can the old manhole that material requirement is built up few in existing inside be transformed, without the need to welding on protoplast hole.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is scheme of installation of the present utility model;
Fig. 3 is the enlarged drawing of the utility model first and second hermetically-sealed construction;
Fig. 4 is A-A section-drawing in Fig. 3.
Fig. 5 is B-B section-drawing in Fig. 3.
Fig. 6 another embodiment of the present utility model.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, embodiment of the present utility model is further illustrated.
Embodiment 1, as shown in Figure 1, a kind of manhole with hermetically-sealed construction, this device is by people's pore-throat or manhole cylindrical shell 1, flange 2, blind flange 3 and be placed in the parts such as first and second sealing arrangement in people's pore-throat or manhole cylindrical shell 1 and form.This device is applicable on normal pressure or low pressure vessel or storage tank.
As shown in Fig. 3,4,5, described secondary seal structure comprises sealing member 4 and seal ring 5; The internal diameter of sealing body 4 and described people's pore-throat or manhole cylindrical shell 1 is equipped with, and is provided with seal ring 5 between the two.Seal ring 5 generally adopts O shape rubber seal, and its screen resilience can stop the material in container to enter manhole inner barrel, and the quantity of seal ring 5 depends on design parameters such as storage material properties, pressure etc.This secondary seal structure stops gas or liquid to enter manhole cylindrical shell, becomes the key structure realizing this device.
Described once sealing structure comprises curved baffle 6 and baffle plate attaching parts 7; The arc-shaped curved surface of this curved baffle 6 is consistent with container inner wall curved surface, and this curved baffle 6 welds with baffle plate attaching parts 7, and baffle plate attaching parts 7 is threaded with the sealing member 4 of secondary seal structure.Baffle plate attaching parts 7 is provided with gusset I 8, to increase the rigidity of baffle plate attaching parts 7.Adopt free-running fit between the diameter of curved baffle 6 and manhole internal diameter, form once sealing structure, stop granule materials to enter manhole cylindrical shell.Curved baffle 6 is made for carbon steel or stainless steel.
Described sealing member 4 upper end center is provided with connection pipe 9, and this connection pipe 9 has the installation through hole of φ 12 by gusset 10 and affixed and connection pipe 9 radial direction of sealing member 4 inwall.Gusset 10 strengthens the rigidity of sealing member 4.Connection pipe 9 one aspect provides the installing space of curved baffle 6, on the other hand for the installation of sealing arrangement provides stress point.
Embodiment 2, for the tankage that pressure is higher, the structure shown in available Fig. 6, increases by a bracing or strutting arrangement 11 between manhole cover and sealing member, and this supportive device is the steel pipe of muscle in band, prevents because container inner pressure is excessive, sealing arrangement is moved to manhole cover side.Remaining logical embodiment 1.
Because have friction force between the seal ring on sealing arrangement 5 and manhole cylindrical shell inner arm, the installation of sealing arrangement needs special installation tool, and as shown in Figure 2, mounting tools is made up of support 14, handle 12, leading screw 13 and attaching parts 15.Sealing arrangement installation process is as follows:
First, the assembling of sealing arrangement.Seal ring 5 is assemblied on the seal groove of sealing member 4 periphery, then the assembly set of curved baffle 6 and baffle plate attaching parts 7 is installed by the negative thread of sealing member 4.Second step, the sealing arrangement after assembling puts into manhole cylindrical shell, is bolted on manhole flange by the support of special installation tool, and the attaching parts on mounting tools is connected by bearing pin with the connection pipe 9 on sealing arrangement.3rd step, turning handle, then sealing arrangement progressively enters default position under the thrust of leading screw.4th step, takes down bearing pin, removes special installation tool, installs manhole cover.When overhaul of the equipments, the demolishing process of sealing arrangement and above-mentioned just in time contrary.
The utility model structure is simple, does not need when mounted to carry out welding on manhole, so can transform the old manhole that material requirement is built up few in existing inside.
Claims (3)
1. the manhole with hermetically-sealed construction, comprises people's pore-throat or manhole cylindrical shell (1) that container and container are arranged, it is characterized in that: in described people's pore-throat or manhole cylindrical shell (1), be provided with secondary and once sealing structure from outside to inside successively; Described secondary seal structure comprises sealing member (4) and seal ring (5); The internal diameter of sealing body (4) and described people's pore-throat or manhole cylindrical shell (1) is equipped with, and is provided with seal ring (5) between the two; Described once sealing structure comprises curved baffle (6) and baffle plate attaching parts (7); The arc-shaped curved surface of this curved baffle (6) is consistent with container inner wall curved surface, and this curved baffle (6) is affixed with baffle plate attaching parts (7), and baffle plate attaching parts (7) is threaded with the sealing member (4) of secondary seal structure.
2. a kind of manhole with hermetically-sealed construction as claimed in claim 1, it is characterized in that: described sealing member (4) upper end center is provided with connection pipe (9), this connection pipe (9) by gusset (10) and sealing member (4) inwall affixed and connection pipe (9) has mounting hole.
3. a kind of manhole with hermetically-sealed construction as claimed in claim 1, is characterized in that: be provided with bracing or strutting arrangement (11) between the blind flange of described people's pore-throat or manhole cylindrical shell (1) and secondary seal structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420533900.8U CN204250692U (en) | 2014-09-17 | 2014-09-17 | A kind of manhole with hermetically-sealed construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420533900.8U CN204250692U (en) | 2014-09-17 | 2014-09-17 | A kind of manhole with hermetically-sealed construction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204250692U true CN204250692U (en) | 2015-04-08 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420533900.8U Expired - Fee Related CN204250692U (en) | 2014-09-17 | 2014-09-17 | A kind of manhole with hermetically-sealed construction |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204250692U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107677554A (en) * | 2017-10-13 | 2018-02-09 | 中石化第四建设有限公司 | It is inside and outside to pull-type Nozzle Zone of Vessels pressure testing device |
-
2014
- 2014-09-17 CN CN201420533900.8U patent/CN204250692U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107677554A (en) * | 2017-10-13 | 2018-02-09 | 中石化第四建设有限公司 | It is inside and outside to pull-type Nozzle Zone of Vessels pressure testing device |
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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: 20150408 Termination date: 20190917 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |