CN201206678Y - Conical surface sealed composite stainless steel tube for fluid - Google Patents

Conical surface sealed composite stainless steel tube for fluid Download PDF

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Publication number
CN201206678Y
CN201206678Y CNU2008200122140U CN200820012214U CN201206678Y CN 201206678 Y CN201206678 Y CN 201206678Y CN U2008200122140 U CNU2008200122140 U CN U2008200122140U CN 200820012214 U CN200820012214 U CN 200820012214U CN 201206678 Y CN201206678 Y CN 201206678Y
Authority
CN
China
Prior art keywords
pipe
stainless steel
conical
composite
composite bed
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
CNU2008200122140U
Other languages
Chinese (zh)
Inventor
周永银
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.)
JUYANG DRILLING-PRODUCING TECHNOLOGY Co Ltd LIAOHE OIL FIELD PANJIN
Original Assignee
JUYANG DRILLING-PRODUCING TECHNOLOGY Co Ltd LIAOHE OIL FIELD PANJIN
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 JUYANG DRILLING-PRODUCING TECHNOLOGY Co Ltd LIAOHE OIL FIELD PANJIN filed Critical JUYANG DRILLING-PRODUCING TECHNOLOGY Co Ltd LIAOHE OIL FIELD PANJIN
Priority to CNU2008200122140U priority Critical patent/CN201206678Y/en
Application granted granted Critical
Publication of CN201206678Y publication Critical patent/CN201206678Y/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model relates to a conical-seal composite stainless steel fluid pipe which comprises a pipe body and a pipe member. The pipe body and the pipe member are connected by the threaded connection of the joint ends of the pipe body and the pipe member, and are sealed through a conical sealing plane. The pipe body and the pipe member each comprises a carbon steel outer pipe and a stainless steel inner composite layer laminated on the inner side of the carbon steel outer pipe. An outwards-folded external conical sealing laminated layer and external threads are respectively machined at two ends of the pipe body. An outwards-extended internal conical sealing laminated layer and internal threads are respectively machined at two ends of the pipe member. The outwards-folded external conical sealing laminated layer at the end of the pipe body is integrated with the stainless steel composite inner layer inside the pipe body as a whole. The outwards-extended internal conical sealing laminated layer at the end of the pipe member is integrated with the stainless steel composite inner layer inside the pipe body as a whole. The conical-seal composite stainless steel fluid pipe has novel structure and reliable performance, can effectively solve the technical difficulties of poor connection and seal performance in the prior composite stainless steel fluid pipe, and provides a novel piping carrier for fluid medium transmission.

Description

Conical surface seal composite stainless steel fluid hose
Technical field:
The utility model relates to a kind of pipe fitting that is used to transmit various flowing mediums, belongs to the tubing technology type.
Background technique:
High speed development along with economic construction and industrial and agricultural production, for being used for transmitting the pipeline of various liquid state, gaseous fluid medium and the antiseptic property of pipe fitting requires more and more higher, the composite stainless steel fluid hose is exactly a kind of antiseptic effect tubing preferably, and this kind tubing is compound book wall stainless steel lining and a kind of novel fluid pipe of constituting on the inwall of carbon steel tubing.Because this tubing under the situation of stainless steel fluid tubing, can obtain very strong pressure-bearing temperature resistant capability in cost, can obtain very strong anti-current body corrosion ability again, thereby have the price performance of superelevation.But because the connection and the sealing of composite stainless steel fluid hose are big technical barriers, the existing product sealability is not ideal enough, thereby has limited the application of composite stainless steel fluid hose and the development of related industry thereof.
The model utility content:
The purpose of this utility model is to provide a kind of conical surface seal composite stainless steel fluid hose that can improve pipeline connection, sealability greatly.This kind composite stainless steel fluid hose comprises body and pipe fitting two-part, and the screw thread by the butt end is connected therebetween, realizes sealing by conical seal (contact) face.Two-part are made up of composite bed in carbon steel outer tube and the stainless steel respectively, and the body two ends are respectively equipped with composite bed flanging male cone (strobilus masculinus) and outside thread, and the pipe fitting two ends are respectively equipped with composite bed and extend out inner conical surface and internal thread.During use, will be connected successively by a plurality of pipe fittings between the adjacent body.Because body and pipe end place have been provided with the composite bed of sealing cushioning effect respectively and have extended out inner conical surface and composite bed flanging male cone (strobilus masculinus), internal thread by pipe fitting end and body end externally threaded tightened the two is fitted tightly and realizes excellent sealing, the fluid that pipeline is flow through in assurance does not contact with carbon steel, play good antisepsis, thereby solved the connection and a sealing difficult problem of composite stainless steel fluid hose effectively.
The utility model novel structure, reliable operation, utilize it can under the situation that need not add any sealing gasket in addition, realize the reliable sealing of double-layer composite pipe, connect and the dissatisfactory technical barrier of sealability thereby effectively solve the composite stainless steel fluid hose, for flowing medium transmission technology provides new pipeline carrier.
Description of drawings:
Fig. 1 is a general structure schematic representation of the present utility model.Fig. 2 is the enlarged view at A position among Fig. 1.Fig. 3 is non-compound conical surface seal link and being connected and sealed structural representation of conical surface seal stainless steel fluid hose body, and Fig. 4 is the enlarged view at B position among Fig. 3.
Embodiment:
As shown in Figure 1 and Figure 2, the utility model comprises body and pipe fitting two-part, screw thread by the butt end is connected therebetween, realize sealing by conical seal (contact) face, its structure, assembled relation are as follows: pipe fitting and body two-part are not by the compound internal layer 8,3 of carbon steel outer tube 1,2 inboard composite stainless steels, the body two ends are processed with flanging external conical shape compound seal layer 5 and outside thread 7 respectively, and the pipe fitting two ends are processed with respectively and extend out inner conical compound seal layer 4 and internal thread 6; The flanging external conical shape compound seal layer 5 of body end is complementary with the inner conical compound seal layer 4 that extends out of pipe fitting end; The external conical shape compound seal layer 5 that turns up of body end is stainless steel lining, with composite bed in the stainless steel in the body 8 be one continuously, the inner conical that extends out of pipe fitting end is answered the compound conical surface seal footpath socket together of specification, elbow, union, also be can be with footpath, reducing tee, four-way, pipe cap, pipe plug and spigot, can be made into series product.Body is the compound stainless steel fluid hoses of two ends with the footpath.This novel non-compound conical surface seal stainless steel fluid hose (seeing Fig. 3, Fig. 4) that also can be made into, this moment, body was identical with aforesaid compound stainless steel fluid hose structure, promptly form by composite bed 8 in carbon steel outer tube and the stainless steel, the end is provided with flanging external conical shape compound seal layer 5, link then directly adopts stainless steel to make, do not establish interior composite bed in the pipe, its two ends fabrication and processing has the inner conical surface that seals, and the port is shaped on and is used for the internal thread that is connected with compound stainless steel fluid hose.

Claims (1)

1, a kind of conical surface seal composite stainless steel fluid hose, comprise body and pipe fitting two-part, screw thread by the butt end is connected therebetween, realize sealing by conical seal (contact) face, it is characterized in that: pipe fitting and body two-part are not by carbon steel outer tube (1), the compound internal layer of (2) inboard composite stainless steel (8), (3), the body two ends are processed with flanging external conical shape sealing surface composite bed (5) and outside thread (7) respectively, and the pipe fitting two ends are processed with respectively and extend out inner conical sealing surface composite bed (4) and internal thread (6); The flanging external conical shape sealing surface composite bed (5) of body end is complementary with the inner conical sealing surface composite bed (4) that extends out of pipe fitting end; The external conical shape sealing surface composite bed (5) that turns up of body end is a stainless steel lining, with composite bed (8) in the stainless steel in the body be one continuously, the inner conical sealing surface composite bed (4) that extends out of pipe fitting end is a stainless steel lining, with composite bed (3) in the stainless steel in the pipe fitting be one continuously.
CNU2008200122140U 2008-04-18 2008-04-18 Conical surface sealed composite stainless steel tube for fluid Expired - Fee Related CN201206678Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNU2008200122140U CN201206678Y (en) 2008-04-18 2008-04-18 Conical surface sealed composite stainless steel tube for fluid

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNU2008200122140U CN201206678Y (en) 2008-04-18 2008-04-18 Conical surface sealed composite stainless steel tube for fluid

Publications (1)

Publication Number Publication Date
CN201206678Y true CN201206678Y (en) 2009-03-11

Family

ID=40465741

Family Applications (1)

Application Number Title Priority Date Filing Date
CNU2008200122140U Expired - Fee Related CN201206678Y (en) 2008-04-18 2008-04-18 Conical surface sealed composite stainless steel tube for fluid

Country Status (1)

Country Link
CN (1) CN201206678Y (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103075590A (en) * 2013-02-06 2013-05-01 山西经纬合力机械制造有限公司二厂 Connecting pipe and reducer union device
CN107288761A (en) * 2017-06-09 2017-10-24 中国航发湖南动力机械研究所 Sealing structure and gas-turbine unit bearing block oil seal structure

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103075590A (en) * 2013-02-06 2013-05-01 山西经纬合力机械制造有限公司二厂 Connecting pipe and reducer union device
CN107288761A (en) * 2017-06-09 2017-10-24 中国航发湖南动力机械研究所 Sealing structure and gas-turbine unit bearing block oil seal structure

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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: 20090311

Termination date: 20110418

C17 Cessation of patent right