CN206929480U - Glass reinforced plastic pipe joint and submarine laying pipeline - Google Patents
Glass reinforced plastic pipe joint and submarine laying pipeline Download PDFInfo
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- CN206929480U CN206929480U CN201720644116.8U CN201720644116U CN206929480U CN 206929480 U CN206929480 U CN 206929480U CN 201720644116 U CN201720644116 U CN 201720644116U CN 206929480 U CN206929480 U CN 206929480U
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- reinforced plastic
- glass reinforced
- plastic pipe
- pipe joint
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Abstract
It the utility model is related to a kind of glass reinforced plastic pipe joint and submarine laying pipeline.The glass reinforced plastic pipe joint includes branch sleeve, two joint retainer rings and rigid connection structure；Branch sleeve is used to the port at the opposite end of two adjacent glass reinforced plastic pipes being set in branch sleeve；Two joint retainer rings are respectively used to be fixed on the port lateral wall that two adjacent glass steel pipes are held in opposite directions；Rigid connection structure includes joint connecting plate, and joint connecting plate is used to two joint retainer rings being rigidly connected fixation.The glass reinforced plastic pipe joint that the utility model supplies realizes being fastenedly connected for the joint retainer ring at the port at the opposite end for being fixed on adjacent glass reinforced plastic pipe by joint connecting plate, is rigidly connected so that glass reinforced plastic pipe joint is formed.
Description
Technical field
Pipe technology field is the utility model is related to, in particular it relates to a kind of glass reinforced plastic pipe joint and submarine laying pipe
Road.
Background technology
With the continuous development and raising of production technique, China deep-sea is recovered the oil and gas production operation is more and more, and this just needs
By extraction it is oily it is gentle be pipelined to destination, while seabed long distance water transfer is also required to realize by submarine pipeline,
Ocean flexible hose starts to substitute traditional steel ocean steel pipe at present, for conveying the media such as water or oil gas.
Glass reinforced plastic pipe is also referred to as chamber for fibre-reinforced plastics sand inclusion pipe, its main raw material(s) be using glass fibre and its product as
Reinforcing material, with the unsaturated polyester resin of macromolecule component, epoxy resin etc. for stock, with quartz sand and calcium carbonate etc.
Inorganic non-metallic granular materials is filler.Because glass reinforced plastic pipe has excellent corrosion resistance, it is light seawater has been widely used in
The Field of Ocean Pipeline Engineering such as change, oil-gas pipeline.
Existing seabed glass reinforced plastic pipe joint, generally include fiberglass muff joint and be separately fixed at two adjacent glass
Glass steel pipe holds two baffle ring devices of outer rim in opposite directions, and two baffle ring devices seal respectively is socketed in the two of the fiberglass muff joint
End, in addition to by the above-mentioned rigidly connected fixing device of two baffle ring devices.Such a joint makes between glass reinforced plastic pipe by being flexibly connected
It is changed into being rigidly connected, but by the rigidly connected bolt and nut fastener of two baffle ring devices because it is along glass reinforced plastic pipe circumferencial direction
Distribution, and with pipe shaft apart from close, carrying out bolt fastening time space very little, be not easy to construct；Meanwhile bolt and nut fastening dress
It is more to put middle bolt quantity, influences installation effectiveness so that efficiency of construction declines.
Utility model content
In order to improve the deficiencies in the prior art, the purpose of this utility model be the provision of a kind of glass reinforced plastic pipe joint and
Submarine laying pipeline is tight to solve the rigidly connected bolt and nut of existing glass reinforced plastic pipe joint present in prior art
It is fixedly mounted with and puts because it is distributed along glass reinforced plastic pipe circumferencial direction, and with pipe shaft apart from close, is carrying out bolt fastening time space very little,
It is not easy to construct；Meanwhile bolt quantity is more in bolt and nut fastener, influences installation effectiveness so that efficiency of construction declines
Technical problem.
A kind of glass reinforced plastic pipe joint is provided in embodiment of the present utility model, the glass reinforced plastic pipe joint includes
Branch sleeve, two joint retainer rings and rigid connection structure；The branch sleeve is used for two adjacent glass reinforced plastic pipes
The port held in opposite directions is set in the branch sleeve；Two joint retainer rings are respectively used to be fixed on two adjacent glass
On the port lateral wall that steel pipe is held in opposite directions；The rigid connection structure includes joint connecting plate, and the joint connecting plate is used for will
Two joint retainer rings are rigidly connected fixation.
Preferably, the quantity of the joint connecting plate is two, and two joint connecting plates are symmetricly set on two institutes
State in joint retainer ring.
Preferably, the joint retainer ring is symmetrically arranged with connecting bolt on the direction of circumference, and the joint connects
Fishplate bar both ends are provided with bolt hole, by bolt and nut fastening structure that the joint connecting plate and two joint retainer rings is firm
Property links together.
Preferably, the joint retainer ring includes two semicircular rings symmetrical above and below；Described two semicircular rings pass through locking
Bolt combination is fixed on the port lateral wall that two adjacent glass steel pipes are held in opposite directions.
Preferably, anti-skid rubber cushion is provided between the joint retainer ring and glass reinforced plastic pipe, is easy to joint retainer ring more
It is fixed well.
Preferably, the glass reinforced plastic pipe joint also includes internal seal structure, and the internal seal structure is arranged at
Between the branch sleeve and glass reinforced plastic pipe.
Preferably, the internal seal structure includes the groove on setting and the branch sleeve madial wall and is embedded in institute
State the watertight rubber circle of inside grooves.
Preferably, the quantity of groove and the watertight rubber circle is two, is respectively arranged at and is sheathed on the adapter sleeve
On the outside of the port of two section glass reinforced plastic pipes of cylinder.
Preferably, the branch sleeve, joint retainer ring, rigid connection structure are made using glass steel material.
A kind of submarine laying pipeline is provided in embodiment of the present utility model, the submarine laying pipeline includes more piece
GRP pipe, it is connected using glass reinforced plastic pipe joint as described above between the adjacent GRP pipe.
Glass reinforced plastic pipe joint provided by the utility model, it includes branch sleeve, two joint retainer rings and rigidity and connected
Binding structure；The branch sleeve is used to the port at the opposite end of two adjacent glass reinforced plastic pipes being set in the branch sleeve
It is interior；Two joint retainer rings are respectively used to be fixed on the port lateral wall that two adjacent glass steel pipes are held in opposite directions；It is described
Rigid connection structure includes joint connecting plate, and the joint connecting plate is used to two joint retainer rings being rigidly connected admittedly
It is fixed.Glass reinforced plastic pipe joint provided by the utility model is realized by joint connecting plate is fixed on the opposite of adjacent glass reinforced plastic pipe
Joint retainer ring at the port at end is fastenedly connected, and is rigidly connected so that glass reinforced plastic pipe joint is formed.
Submarine laying pipeline provided by the utility model, it includes more piece GRP pipe, the adjacent glass reinforced plastic pipe
It is connected between road using glass reinforced plastic pipe joint as described above.The glass reinforced plastic pipe for the submarine laying pipeline that the utility model supplies
Road joint realizes the tight of the joint retainer ring at the port at the opposite end for being fixed on adjacent glass reinforced plastic pipe by joint connecting plate
It is solidly connected, is rigidly connected so that glass reinforced plastic pipe joint is formed.
Brief description of the drawings
, below will be right in order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art
The required accompanying drawing used is briefly described in embodiment or description of the prior art, it should be apparent that, describe below
In accompanying drawing be some embodiments of the present utility model, for those of ordinary skill in the art, do not paying creativeness
On the premise of work, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is the structural representation for the embodiment 1 that Fig. 1 is glass reinforced plastic pipe joint provided by the utility model；
Fig. 2 is the cross-sectional view of glass reinforced plastic pipe joint provided by the utility model；
Fig. 3 is the structural representation of the connection sleeve pipe of glass reinforced plastic pipe joint provided by the utility model；
Fig. 4 is the structural representation of the embodiment 2 of glass reinforced plastic pipe joint provided by the utility model.
Icon：1- glass reinforced plastic pipe joints；10- branch sleeves；20- joint retainer rings；210- connecting bolts；
220- semicircular rings；230- clamping screws；240- anti-skid rubber cushions；30- rigid connection structures；310- joint connecting plates；
320- nuts；40- sealing structures.
Embodiment
The technical solution of the utility model is clearly and completely described below in conjunction with accompanying drawing, it is clear that described
Embodiment is the utility model part of the embodiment, rather than whole embodiments.Based on the embodiment in the utility model, sheet
The every other embodiment that field those of ordinary skill is obtained under the premise of creative work is not made, belongs to this practicality
Novel protected scope.
, it is necessary to explanation in description of the present utility model, term as occur " " center ", " on ", " under ", " left side ",
" right side ", " vertical ", " level ", " interior ", " outer " etc., orientation or position relationship indicated by it be based on orientation shown in the drawings or
Position relationship, it is for only for ease of description the utility model and simplifies description, rather than indicates or imply signified device or member
Part must have specific orientation, with specific azimuth configuration and operation, therefore it is not intended that to limitation of the present utility model.
In addition, such as there is term " first ", " second ", " the 3rd " are only used for describing purpose, and it is not intended that instruction or implying phase
To importance.
, it is necessary to which explanation, unless otherwise clearly defined and limited, term is " even in description of the present utility model
It is logical ", " connection " should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected, or be integrally connected；Can
To be mechanical connection or electrical connection；Can be joined directly together, can also be indirectly connected by intermediary, Ke Yishi
The connection of two element internals.For the ordinary skill in the art, with concrete condition above-mentioned term can be understood at this
Concrete meaning in utility model.
The utility model provides a kind of glass reinforced plastic pipe joint 1 and submarine laying pipeline, and multiple embodiments are given below
Glass reinforced plastic pipe joint 1 provided by the utility model and submarine laying pipeline are described in detail.
Embodiment 1
As shown in Figure 1-Figure 3, glass reinforced plastic pipe joint 1 provided by the utility model, it includes branch sleeve 10, two
Joint retainer ring 20 and rigid connection structure 30；Branch sleeve 10 is used for the port at the opposite end of two adjacent glass reinforced plastic pipes
It is set in branch sleeve 10；Two joint retainer rings 20 are respectively used to be fixed on the port that two adjacent glass steel pipes are held in opposite directions
On lateral wall；Rigid connection structure 30 includes joint connecting plate 310, and joint connecting plate 310 is used for two joint retainer rings 20
Be rigidly connected fixation.The glass reinforced plastic pipe joint 1 that the utility model supplies is realized by joint connecting plate 310 is fixed on adjacent glass
Joint retainer ring 20 at the port at the opposite end of glass steel pipe is fastenedly connected, so that glass reinforced plastic pipe joint 1 is formed just
Property connection.
The quantity of joint connecting plate 310 is two, and two joint connecting plates 310 are symmetricly set on two joint retainer rings 20
On.The glass reinforced plastic pipe joint 1 that the utility model supplies is realized by two joint connecting plates 310 is fixed on adjacent glass reinforced plastic pipe
Opposite end port at joint retainer ring 20 be fastenedly connected be rigidly connected so that glass reinforced plastic pipe joint 1 is formed,
And compared with existing glass reinforced plastic pipe joint, joint connecting plate 310, which needs two, can meet rigid requirements, significantly
The quantity of connecting bolt 210 is reduced, installation effectiveness greatly improves so that the installation of glass reinforced plastic pipe joint 1 is more convenient, high
Effect.
Specifically, joint retainer ring 20 is symmetrically arranged with connecting bolt 210, joint connecting plate on the direction of circumference
310 both ends are provided with bolt hole, are connected joint connecting plate 310 and two rigidity of joint retainer ring 20 by bolt and nut fastening structure
It is connected together.When installing glass reinforced plastic pipe joint 1, as shown in Fig. 2 being symmetrically embedded with perpendicular to circumference in joint retainer ring 20
Two groups of connecting bolts 210, the quantity of connecting bolt 210 of every group of connecting bolt 210 is two, while the both ends of joint connecting plate 310
Two bolts hole are equipped with, are when mounted enclosed on the bolt hole of joint connecting plate 310 pre- corresponding to two joint retainer rings 20
On the connecting bolt 210 buried, and fastened with nut 320, so as to which joint connecting plate 310 and two joint retainer rings 20 are fixed on
Together, to realize being rigidly connected for two GRP pipes.Compared with the rigid connection of existing glass reinforced plastic pipe joint,
Glass reinforced plastic pipe joint 1 provided by the utility model needs four groups of bolt and nut fastening combination cans to realize two glass
Steel conduit is rigidly connected, therefore substantially increases installation effectiveness so that efficiency of construction is more efficient；And same joint is consolidated
The bolt determined on ring 20 is symmetrical arranged perpendicular to circumference, therefore the installing space between every group of bolt is very big apart, so that
Worker's construction is easily facilitated during construction.
Further, joint connecting plate 310 is close to the lateral wall of branch sleeve 10.When mounted so that joint connecting plate
310 are close to set with the lateral wall of branch sleeve 10, and the purpose so set is so that joint connecting plate 310 not only by
The fixation of two joint retainer rings 20, while the supporting role of branch sleeve 10 is also received, to cause joint connecting plate
310 are preferably rigidly connected two GRP pipes.
Joint retainer ring 20 includes two semicircular rings 220 symmetrical above and below, and two semicircular rings 220 pass through clamping screw 230
Combination is fixed on the port lateral wall that two adjacent glass steel pipes are held in opposite directions.The purpose of such setting is so that joint
Retainer ring 20 is removably secured with GRP pipe to be connected, therefore first can customize difference according to the diameter of GRP pipe
The joint retainer ring 20 of size, so that glass reinforced plastic pipe joint 1 can apply the company in the GRP pipe of more sizes
Connect；Second is when joint retainer ring 20 produces damage, it can be changed in time, and only need to change what is damaged
Joint retainer ring 20, so as to extend the whole service life of glass reinforced plastic pipe joint 1 indirectly.
Preferably, joint retainer ring 20 can select stainless steel to make.Stainless steel is the abbreviation of stainless acid resistant steel, resistance to
The weak corrosive medium such as air, steam, water or the steel grade with rustless property are referred to as stainless steel.Joint is made using stainless steel to consolidate
Its service life can be improved by determining ring 20, therefore improve the service life of glass reinforced plastic pipe joint 1, and improve whole section of seabed
Lay the service life of pipeline.
Further, anti-skid rubber cushion 240 is provided between joint retainer ring 20 and glass reinforced plastic pipe, is easy to joint retainer ring
20 is preferably fixed.Set anti-skid rubber cushion 240 purpose be, the sealing between reinforced joint retainer ring 20 and glass reinforced plastic pipe
Property, and reduce the friction between joint retainer ring 20 and glass reinforced plastic pipe, so that joint retainer ring 20 is preferably fixed on
On glass reinforced plastic pipe.
Branch sleeve 10, joint retainer ring 20, rigid connection structure 30 can be made using glass steel material.This
The purpose that sample is set is that fiberglass has excellent corrosion resistance, and branch sleeve 10, joint retainer ring 20, be rigidly connected knot
Structure 30 is made with glass reinforced plastic pipe using identical material, therefore branch sleeve 10, joint retainer ring 20, rigid connection structure 30
Service life it is consistent with the service life of glass reinforced plastic pipe, therefore improve the service life of glass reinforced plastic pipe joint 1, and
Improve the service life of whole section of submarine laying pipeline.
Submarine laying pipeline provided by the utility model, it includes multiple GRP pipes, adjacent GRP pipe it
Between be connected using glass reinforced plastic pipe joint 1 as described above.The GRP pipe for the submarine laying pipeline that the utility model supplies
Joint 1 realizes the joint retainer ring 20 at the port at the opposite end for being fixed on adjacent glass reinforced plastic pipe by joint connecting plate 310
Be fastenedly connected so that glass reinforced plastic pipe joint 1 formed be rigidly connected.
Embodiment 2
As shown in figure 4, glass reinforced plastic pipe joint 1 provided by the utility model, it includes 10, two joints of branch sleeve and consolidated
Determine ring 20 and rigid connection structure 30；Branch sleeve 10 is used to the port at the opposite end of two adjacent glass reinforced plastic pipes being set in
In branch sleeve 10；Two joint retainer rings 20 are respectively used to be fixed on the port lateral wall that two adjacent glass steel pipes are held in opposite directions
On；Rigid connection structure 30 includes joint connecting plate 310, and joint connecting plate 310 is used to connect two rigidity of joint retainer ring 20
Connect fixation.The glass reinforced plastic pipe joint 1 that the utility model supplies is realized by joint connecting plate 310 is fixed on adjacent glass reinforced plastic pipe
Opposite end port at joint retainer ring 20 be fastenedly connected be rigidly connected so that glass reinforced plastic pipe joint 1 is formed.
The embodiment 2 of glass reinforced plastic pipe joint 1 provided by the utility model is GRP pipe with the difference of embodiment 1
Joint 1 also includes internal seal structure 40, and internal seal structure 40 is arranged between branch sleeve 10 and glass reinforced plastic pipe.Set
The purpose of internal seal structure 40 is, improves sealing of the branch sleeve 10 to medium in pipe of glass reinforced plastic pipe joint 1.
Specifically, internal seal structure 40 includes the groove being arranged on the madial wall of branch sleeve 10 and is embedded in groove
The watertight rubber circle in portion.Watertight rubber circle can be made of ethylene propylene diene rubber, and ethylene propylene diene rubber is ethene, propylene and lacked
The copolymer of the non-conjugated diene hydrocarbon of amount, it is one kind of EP rubbers, it has cost-effective a, anti-aging property, resistance to weather, resistance to
Ageing properties, the chemical-resistant resistance characteristic such as ozone, resistance to daylight, heat-resisting, water-fast, resistance to vapor, UV resistant, radiation hardness are excellent
Insulating properties and Applicable temperature scope it is wide, minimum temperature in use -40~-60 DEG C, can be used for a long time under the conditions of 130 DEG C
Advantage.
The quantity of groove and watertight rubber circle is two, is respectively arranged at the two section fiberglass for being sheathed on branch sleeve 10
On the outside of the port of pipe.Specifically, groove includes the first groove and the second groove, when glass reinforced plastic pipe joint 1 is installed,
The madial wall of branch sleeve 10 where first groove is in contact with the lateral wall of a section GRP pipe port, the second groove institute
The madial wall of branch sleeve 10 be in contact with the lateral wall of another section GRP pipe port, so as to realize to two section glass
The sealing of medium in the pipe of steel conduit port.
In summary, glass reinforced plastic pipe joint 1 provided by the utility model, it includes 10, two joints of branch sleeve and consolidated
Determine ring 20 and rigid connection structure 30；Branch sleeve 10 is used to the port at the opposite end of two adjacent glass reinforced plastic pipes being set in
In branch sleeve 10；Two joint retainer rings 20 are respectively used to be fixed on the port lateral wall that two adjacent glass steel pipes are held in opposite directions
On；Rigid connection structure 30 includes joint connecting plate 310, and joint connecting plate 310 is used to connect two rigidity of joint retainer ring 20
Connect fixation.The glass reinforced plastic pipe joint 1 that the utility model supplies is realized by joint connecting plate 310 is fixed on adjacent glass reinforced plastic pipe
Opposite end port at joint retainer ring 20 be fastenedly connected be rigidly connected so that glass reinforced plastic pipe joint 1 is formed.
Also, the quantity of joint connecting plate 310 is two, and two joint connecting plates 310 are symmetricly set in two joint retainer rings 20.
The glass reinforced plastic pipe joint 1 that the utility model supplies is realized by two joint connecting plates 310 is fixed on adjacent glass reinforced plastic pipe
Joint retainer ring 20 at the port held in opposite directions is fastenedly connected, and is rigidly connected so that glass reinforced plastic pipe joint 1 is formed, and
And compared with existing glass reinforced plastic pipe joint, joint connecting plate 310, which needs two, can meet rigid requirements, subtract significantly
Few quantity of connecting bolt 210, installation effectiveness greatly improve so that the installation of glass reinforced plastic pipe joint 1 is more convenient, high
Effect.
Submarine laying pipeline provided by the utility model, it includes more piece GRP pipe, adjacent GRP pipe it
Between be connected using glass reinforced plastic pipe joint 1 as described above.The GRP pipe for the submarine laying pipeline that the utility model supplies
Joint 1 realizes the joint retainer ring 20 at the port at the opposite end for being fixed on adjacent glass reinforced plastic pipe by joint connecting plate 310
Be fastenedly connected so that glass reinforced plastic pipe joint 1 formed be rigidly connected.
Finally it should be noted that：Various embodiments above is only to illustrate the technical solution of the utility model, rather than it is limited
System；Although the utility model is described in detail with reference to foregoing embodiments, one of ordinary skill in the art should
Understand：It can still modify to the technical scheme described in foregoing embodiments, either to which part or whole
Technical characteristic carries out equivalent substitution；And these modifications or replacement, the essence of appropriate technical solution is departed from this practicality newly
The scope of each embodiment technical scheme of type.
Claims (10)
1. a kind of glass reinforced plastic pipe joint, it is characterised in that the glass reinforced plastic pipe joint includes branch sleeve, two joints are consolidated
Determine ring and rigid connection structure；
The branch sleeve is used to the port at the opposite end of two adjacent glass reinforced plastic pipes being set in the branch sleeve；
Two joint retainer rings are respectively used to be fixed on the port lateral wall that two adjacent glass steel pipes are held in opposite directions；
The rigid connection structure includes joint connecting plate, and the joint connecting plate is used for two joint retainer ring rigidity
It is connected.
2. glass reinforced plastic pipe joint according to claim 1, it is characterised in that the quantity of the joint connecting plate is two
Individual, two joint connecting plates are symmetricly set in two joint retainer rings.
3. glass reinforced plastic pipe joint according to claim 1, it is characterised in that the joint retainer ring is perpendicular to circumference
Connecting bolt is symmetrically arranged with direction, the joint connecting plate both ends are provided with bolt hole, will by bolt and nut fastening structure
The joint connecting plate is rigidly connected with two joint retainer rings.
4. glass reinforced plastic pipe joint according to claim 1, it is characterised in that the joint retainer ring includes about two
Symmetrical semicircular ring；
Described two semicircular rings are combined by clamping screw to be fixed on the port lateral wall that two adjacent glass steel pipes are held in opposite directions.
5. glass reinforced plastic pipe joint according to claim 4, it is characterised in that the joint retainer ring and glass reinforced plastic pipe it
Between be provided with anti-skid rubber cushion, be easy to joint retainer ring preferably fixed.
6. glass reinforced plastic pipe joint according to claim 1, it is characterised in that the glass reinforced plastic pipe joint also includes
Internal seal structure, the internal seal structure are arranged between the branch sleeve and glass reinforced plastic pipe.
7. glass reinforced plastic pipe joint according to claim 6, it is characterised in that the internal seal structure include set with
Groove on the branch sleeve madial wall and the watertight rubber circle for being embedded in the inside grooves.
8. glass reinforced plastic pipe joint according to claim 7, it is characterised in that the quantity of groove and the watertight rubber circle
For two, it is respectively arranged on the outside of the port for the two section glass reinforced plastic pipes for being sheathed on the branch sleeve.
9. glass reinforced plastic pipe joint according to claim 1, it is characterised in that the branch sleeve, joint retainer ring, just
Property attachment structure is made using glass steel material.
10. a kind of submarine laying pipeline, it is characterised in that the submarine laying pipeline includes more piece GRP pipe, adjacent
It is connected between the GRP pipe using the glass reinforced plastic pipe joint as described in claim 1-9 any one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720644116.8U CN206929480U (en) | 2017-06-02 | 2017-06-02 | Glass reinforced plastic pipe joint and submarine laying pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720644116.8U CN206929480U (en) | 2017-06-02 | 2017-06-02 | Glass reinforced plastic pipe joint and submarine laying pipeline |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206929480U true CN206929480U (en) | 2018-01-26 |
Family
ID=61346051
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720644116.8U Active CN206929480U (en) | 2017-06-02 | 2017-06-02 | Glass reinforced plastic pipe joint and submarine laying pipeline |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206929480U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112429980A (en) * | 2020-12-03 | 2021-03-02 | 信和光能(安徽)有限公司 | High borosilicate glass pipe |
-
2017
- 2017-06-02 CN CN201720644116.8U patent/CN206929480U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112429980A (en) * | 2020-12-03 | 2021-03-02 | 信和光能(安徽)有限公司 | High borosilicate glass pipe |
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