CN202203554U - Negative pressure sealing flange connection device - Google Patents

Negative pressure sealing flange connection device Download PDF

Info

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
Application number
CN2011202858786U
Other languages
Chinese (zh)
Inventor
王光勇
葛玉斌
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
URUMQI TIANZHILAN ENVIRONMENT ENGINEERING Co Ltd
Original Assignee
URUMQI TIANZHILAN ENVIRONMENT ENGINEERING Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by URUMQI TIANZHILAN ENVIRONMENT ENGINEERING Co Ltd filed Critical URUMQI TIANZHILAN ENVIRONMENT ENGINEERING Co Ltd
Priority to CN2011202858786U priority Critical patent/CN202203554U/en
Application granted granted Critical
Publication of CN202203554U publication Critical patent/CN202203554U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

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

The negative-pressure sealing flange connecting apparatus
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.
CN2011202858786U 2011-08-08 2011-08-08 Negative pressure sealing flange connection device Expired - Fee Related CN202203554U (en)

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)

* Cited by examiner, † Cited by third party
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

Cited By (2)

* Cited by examiner, † Cited by third party
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