CN202203554U - Negative pressure sealing flange connection device - Google Patents
Negative pressure sealing flange connection device Download PDFInfo
- Publication number
- CN202203554U CN202203554U CN2011202858786U CN201120285878U CN202203554U CN 202203554 U CN202203554 U CN 202203554U CN 2011202858786 U CN2011202858786 U CN 2011202858786U CN 201120285878 U CN201120285878 U CN 201120285878U CN 202203554 U CN202203554 U CN 202203554U
- Authority
- CN
- China
- Prior art keywords
- pipeline
- port
- pressure sealing
- flange
- flange connection
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Joints With Pressure Members (AREA)
- Flanged Joints, Insulating Joints, And Other Joints (AREA)
Abstract
The utility model belongs to the improvement of a pipeline flange connection structure, in particular to a negative pressure sealing flange connection device, which is characterized in that the port of a main pipeline is provided with a connecting flange with a conical inserting pipe, the conical inserting pipe is positioned outside the port of the main pipeline, the small end of the conical inserting pipe is outward, the port of a connected pipeline is provided with another connecting flange, the main pipeline and the connected connecting pipeline are connected through the connecting flanges, so that the conical inserting pipe is positioned in the connected pipeline. The pipeline flange connection structure disclosed by the utility model has good sealability, high pressure bearing capability, good high temperature resistance, firmness and durability, and long service life.
Description
Technical field
The utility model belongs to the improvement of piping flange linkage structure, particularly the negative-pressure sealing flange connecting apparatus.
Background technique
The utility model belongs to the improvement of piping flange linkage structure, particularly the negative-pressure sealing flange connecting apparatus.
Summary of the invention
The purpose of the utility model is to provide a kind of negative-pressure sealing flange connecting apparatus, good seal performance not only, and bear the pressure height, resistance to high temperature is good, and is sturdy and durable, long service life.
The purpose of the utility model is achieved in that a kind of negative-pressure sealing flange connecting apparatus; Adpting flange with tapered cannula is being set on the port of main pipe; Tapered cannula is positioned at the outside of main pipe port, and the small end of tapered cannula is outside, on the port of connected pipeline, adpting flange is being set; Main pipe and connected pipe link together through adpting flange, make tapered cannula be positioned at connected pipeline.
Because the utility model is being provided with the adpting flange with tapered cannula on the port of main pipe; Tapered cannula is positioned at the outside of main pipe port; And the small end of tapered cannula is outside, and main pipe and connected pipe link together through flange, and tapered cannula is positioned at connected pipe.When fluid at a high speed flow through tapered cannula, rate of flow of fluid increased, and produced negative pressure, and the degree of vacuum at pipe joint place is increased, and bearing capacity is increased substantially.Between flange, can use metallic gasket, improve the resistance and high temperature resistance property of pipe joint.The utility model is good seal performance not only, and bears the pressure height, and resistance to high temperature is good, and is sturdy and durable, long service life.
Description of drawings
To combine accompanying drawing that the utility model is done further to describe below, accompanying drawing is the utility model sectional structure schematic representation.
Embodiment
A kind of negative-pressure sealing flange connecting apparatus; Shown in accompanying drawing, the adpting flange 2 with tapered cannula 4 is being set on the port of main pipe 1, tapered cannula 4 is positioned at the outside of main pipe 1 port; The small end of tapered cannula 4 is outside; Adpting flange 3 is being set on the port of connected pipeline 5, and main pipe 1 links together through adpting flange 2,3 with connected pipe, makes tapered cannula 4 be positioned at connected pipeline 5.Between the adpting flange 3 of adpting flange with tapered cannula 42 and connected pipe, metallic gasket 6 is being set.Metallic gasket 6 is steel or copper sealing gasket.
Claims (3)
1. negative-pressure sealing flange connecting apparatus; It is characterized in that: the have tapered cannula adpting flange (2) of (4) is being set on the port of main pipe (1); Tapered cannula (4) is positioned at the outside of main pipe (1) port; The small end of tapered cannula (4) is outside; Adpting flange (3) is being set on the port of connected pipeline (5), and main pipe (1) links together through adpting flange (2,3) with connected pipe, makes tapered cannula (4) be positioned at connected pipeline (5).
2. negative-pressure sealing flange connecting apparatus according to claim 1 is characterized in that: between the adpting flange (3) of adpting flange with tapered cannula (4) (2) and connected pipe, metallic gasket (6) is being set.
3. negative-pressure sealing flange connecting apparatus according to claim 2 is characterized in that: metallic gasket (6) is steel or copper sealing gasket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202858786U CN202203554U (en) | 2011-08-08 | 2011-08-08 | Negative pressure sealing flange connection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202858786U CN202203554U (en) | 2011-08-08 | 2011-08-08 | Negative pressure sealing flange connection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202203554U true CN202203554U (en) | 2012-04-25 |
Family
ID=45967675
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202858786U Expired - Fee Related CN202203554U (en) | 2011-08-08 | 2011-08-08 | Negative pressure sealing flange connection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202203554U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103277608A (en) * | 2013-06-14 | 2013-09-04 | 苏州柏德纳科技有限公司 | Connecting pipe |
| CN103388715A (en) * | 2013-08-19 | 2013-11-13 | 孙蕾 | Dual-sealing flange |
-
2011
- 2011-08-08 CN CN2011202858786U patent/CN202203554U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103277608A (en) * | 2013-06-14 | 2013-09-04 | 苏州柏德纳科技有限公司 | Connecting pipe |
| CN103388715A (en) * | 2013-08-19 | 2013-11-13 | 孙蕾 | Dual-sealing flange |
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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: 20120425 Termination date: 20170808 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |