CN201615300U - High-pressure pipeline flange connecting structure - Google Patents

High-pressure pipeline flange connecting structure Download PDF

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Publication number
CN201615300U
CN201615300U CN2010201555245U CN201020155524U CN201615300U CN 201615300 U CN201615300 U CN 201615300U CN 2010201555245 U CN2010201555245 U CN 2010201555245U CN 201020155524 U CN201020155524 U CN 201020155524U CN 201615300 U CN201615300 U CN 201615300U
Authority
CN
China
Prior art keywords
flange
oil pipe
sealing
convex edge
annular groove
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
CN2010201555245U
Other languages
Chinese (zh)
Inventor
陈春明
谢广玉
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.)
XUZHOU PRESS SYSTEM CO Ltd
Original Assignee
XUZHOU PRESS SYSTEM 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 XUZHOU PRESS SYSTEM CO Ltd filed Critical XUZHOU PRESS SYSTEM CO Ltd
Priority to CN2010201555245U priority Critical patent/CN201615300U/en
Application granted granted Critical
Publication of CN201615300U publication Critical patent/CN201615300U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model discloses a high-pressure pipeline flange connecting structure, which belongs to the technical field of sealing connection of high pressure fluid pipelines and can be used for a hydraulic pipeline system of a hydraulic forging press. The flange connecting structure comprises an oil pipe I, a flange I is welded on an orifice of the oil pipe I and connected with a flange II, the flange I and the flange II are fastened via screws at a radial convex edge, an oil pipe II is welded on the other end surface of the flange II, the oil pipe I, the flange I, the flange II and the oil pipe II have the same inner diameter and are located at the same axis, a surface of the flange I contacting with the flange II is provided an axial convex edge, a surface of the flange II contacting with the flange I is provided with an axial sunken sealing space matching with the convex edge, the outer wall of the convex edge is provided with an annular groove, and a sealing ring is disposed inside the annular groove. The flange connecting structure has the advantages of resolving the problem of leakage of a sealing surface after the screws are pulled under stress and having compact structure, reliable sealing and convenient maintenance.

Description

The pressure duct flanged connecting structure
Technical field
The utility model relates to a kind of flange arrangement, belongs to the technical field that is tightly connected of high-pressure liquid pipeline, can be used for the hydraulic plumbing system such as free-forging hydraulic or large-scale stamp forging hydraulic press.
Background technique
Flange arrangement in the existing high-pressure liquid pipeline system adopts planar radial to be tightly connected mostly.In the high-volume hydraulic pipe-line system of stamp forging hydraulic press and so on, because system is in control procedure, can produce very big hydraulic shock in the pipeline, the joint bolt of flange can be pulled out after stressed in moment, make flange facing produce the gap, thereby cause flange facing to leak, can cause seal element to damage when serious, make hydraulic press serious the leakage occur, influence the usability of hydraulic press.
Summary of the invention
In order to overcome above-mentioned the deficiencies in the prior art part, the utility model provides a kind of pressure duct flanged connecting structure, and axial sealing configuration is set, after the stressed pulling of solution screw, and the problem that sealing surface is revealed.
The utility model is achieved by the following technical solution: a kind of pressure duct flanged connecting structure, comprise oil pipe I, the oil pipe I mouth of pipe is welded with flange I, the other end of flange I is connected with flange II, flange I and flange II are fastening by the screw on the radial flange, between flange I and the flange II seal ring is arranged, the other end of described flange II is welded with oil pipe II, oil pipe I, flange I, the internal diameter of flange II and oil pipe II is identical and on same axis, described flange I goes up and the contacted one side of flange II has axial flange, flange II goes up and the contacted one side of flange I has axially recessed seal space, and is suitable with flange.Described flange can insert in the seal space closely; The outer wall of described flange has annular groove, is provided with seal ring in the annular groove.
The beneficial effects of the utility model are: after having solved the stressed pulling of attachment screw, the problem that sealing surface is revealed has guaranteed the pipe-line system sealing effect under big flow, high pressure are impacted, compact structure, and sealing is reliable, and is easy to maintenance.
Description of drawings
With embodiment the utility model is further specified with reference to the accompanying drawings below.
Fig. 1 is the utility model structural representation;
Fig. 2 is the plan view of Fig. 1.
Among the figure, 1, oil pipe I, 2, flange I, 21, flange, 22, annular groove, 3, seal ring, 4, screw, 5, flange II, 51, seal space, 6, oil pipe II.
Embodiment
A kind of as shown in drawings pressure duct flanged connecting structure comprises oil pipe I 1, and the oil pipe I mouth of pipe is welded with flange I 2, and the other end of flange I is connected with flange II 5, and flange I and flange II are fastening by the screw on the radial flange 4.The other end of flange II 5 is welded with oil pipe II6, and the internal diameter of oil pipe I 1, flange I 2, flange II 5 and oil pipe II 6 is identical and on same axis.With flange II 5 contacted one sides axial flange 21 is arranged on the flange I 2, with flange I 2 contacted one sides axially recessed seal space 51 is arranged on the flange II 5, seal space 51 is suitable with flange 21.Described flange 21 can insert in the seal space 51 closely; The outer wall of flange 21 has annular groove 22, is provided with O shape rubber seal 3 in the annular groove.
During installation, oil pipe I 1 is inserted among the flange I 2 join weldering earlier, seal ring 3 is installed with flange I 2 insert among the flange II 5 again, with screw 4 that flange I and flange II is fastening, join solder paste pipe II 6 again, check and to guarantee that oil pipe and flange join the weldering quality, finish assembling of the present utility model.

Claims (2)

1. pressure duct flanged connecting structure, comprise oil pipe I (1), the oil pipe I mouth of pipe is welded with flange I (2), the other end of flange I is connected with flange II (5), flange I and flange II are fastening by the screw on the radial flange (4), seal ring (3) is arranged between flange I and the flange II, the other end of described flange II (5) is welded with oil pipe II (6), oil pipe I (1), flange I (2), the internal diameter of flange II (5) and oil pipe II (6) is identical and on same axis, it is characterized in that: described flange I (2) goes up and the contacted one side of flange II (5) has axial flange (21), flange II (5) goes up and the contacted one side of flange I (2) has axially recessed seal space (51), and is suitable with flange (21); Described flange (21) can insert in the seal space (51) closely; The outer wall of described flange (21) has annular groove (22), is provided with seal ring (3) in the annular groove.
2. pressure duct flanged connecting structure according to claim 1 is characterized in that: described seal ring (3) is an O shape rubber seal.
CN2010201555245U 2010-03-28 2010-03-28 High-pressure pipeline flange connecting structure Expired - Fee Related CN201615300U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2010201555245U CN201615300U (en) 2010-03-28 2010-03-28 High-pressure pipeline flange connecting structure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2010201555245U CN201615300U (en) 2010-03-28 2010-03-28 High-pressure pipeline flange connecting structure

Publications (1)

Publication Number Publication Date
CN201615300U true CN201615300U (en) 2010-10-27

Family

ID=43001669

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2010201555245U Expired - Fee Related CN201615300U (en) 2010-03-28 2010-03-28 High-pressure pipeline flange connecting structure

Country Status (1)

Country Link
CN (1) CN201615300U (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103032642A (en) * 2012-12-31 2013-04-10 太原重工股份有限公司 High-pressure pipeline and vibration attenuation device thereof
CN103388715A (en) * 2013-08-19 2013-11-13 孙蕾 Dual-sealing flange
CN106151720A (en) * 2015-04-24 2016-11-23 长城汽车股份有限公司 Pipe connecting structure and its conduit assembly and the exhaust pipe connection structure for vehicle

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103032642A (en) * 2012-12-31 2013-04-10 太原重工股份有限公司 High-pressure pipeline and vibration attenuation device thereof
CN103388715A (en) * 2013-08-19 2013-11-13 孙蕾 Dual-sealing flange
CN106151720A (en) * 2015-04-24 2016-11-23 长城汽车股份有限公司 Pipe connecting structure and its conduit assembly and the exhaust pipe connection structure for vehicle

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Legal Events

Date Code Title Description
GR01 Patent grant
C14 Grant of patent or utility model
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20101027

Termination date: 20110328

C17 Cessation of patent right