CN108644493A - The sealing structure and encapsulating method of highly pressurised liquid baffle type pipe connections - Google Patents
The sealing structure and encapsulating method of highly pressurised liquid baffle type pipe connections Download PDFInfo
- Publication number
- CN108644493A CN108644493A CN201810887212.4A CN201810887212A CN108644493A CN 108644493 A CN108644493 A CN 108644493A CN 201810887212 A CN201810887212 A CN 201810887212A CN 108644493 A CN108644493 A CN 108644493A
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- CN
- China
- Prior art keywords
- straight tube
- sealing
- upstream
- hermetically sealed
- highly pressurised
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- 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.)
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L15/00—Screw-threaded joints; Forms of screw-threads for such joints
- F16L15/04—Screw-threaded joints; Forms of screw-threads for such joints with additional sealings
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
The sealing structure and encapsulating method of highly pressurised liquid baffle type pipe connections,There are the upstream straight tube and downstream straight tube for constituting volatile material flow path,The arrival end that downstream straight tube is inserted into the outlet end of upstream straight tube is tightly connected by thread seal,Or upstream straight tube docks connection with downstream straight tube,It is cased with sealed connecting component in junction,The sealing nested structure for being permeated from junction by highly pressurised liquid barrier volatile material for wrapping junction is provided on the outside of the upstream straight tube and downstream straight tube junction for passing through sealed connection,It is separately provided for importing the inlet of liquid barrier into the seal chamber of sealing nested structure on sealing nested structure,And the gas vent for sealing intracavity gas to be discharged,Liquid barrier at the sealed connection of upstream straight tube and downstream straight tube to carrying out obstruction seals again,Inlet connects the high pressure cleaning liquid barrier liquid outlet of energy storage tank by highly pressurised liquid delivery pipe.The present invention can effectively prevent the material volatile matter in pipeline along between two pipe fittings leak air among.
Description
Technical field
The present invention relates to a kind of sealing structures of pipe connections.Material between connecting piece for pipelines is prevented more particularly to one kind
The sealing structure and encapsulating method of the highly pressurised liquid baffle type pipe connections of leakage.
Background technology
The structure of existing connecting piece for pipelines is as shown in Figure 1 and Figure 2, and wherein volatile material 1 flows through upper by what is be connected with each other
Swim the flow path for the volatile material 1 that straight tube 2 and downstream straight tube 3 are constituted, wherein the company of the upstream straight tube 2 and downstream straight tube 3
It connects and is realized by thread seal 4.Either, the connection of the upstream straight tube 2 and downstream straight tube 3 is to pass through connector sleeve
5, gasket 6 and thread seal 4 are realized.The material of thread seal 4 is raw material band or the rope made of hemp, and the material of gasket is rubber, gathers
Tetrafluoroethene etc..Since the penetration of volatile material or VOCs are far longer than liquid material, so upstream straight tube 2, downstream are straight
Junction between pipe 3 is that there are the leakages of a certain amount of inorganization, and this leakage rate is uninterrupted, with the time
It is increasing to elapse this leakage rate.It is difficult to find the specific location of leakage, it is also difficult to thoroughly be repaired, often obviously be known
Leakage must also go to work braving one's illness.
This indicates that the structure of prior art tube wire connections and operation principle have disadvantages that and is difficult to overcome:
1, do not have not knowing single connecting piece for pipelines leakage point specific accurate location when logistics in pipeline;
2, the penetration of gas is more much larger than the penetration of liquid, therefore, just there is leakage certainly simply by the presence of gap, and
And it is constant, the more leak the more big.Air mixture ratio increase in the volatile gas and air that leak out in this way will draw
Detonation is fried, be easy to cause fire, carrys out huge hidden danger to safety belt.
3, it can not thoroughly repair and produce in spite of illness, especially " unreachable point " is even more so, and volatile material and VOCs are let out
It drains in air and pollutes environment, increases haze.Pollution air can not capture and form cumulative effect, keep the degree of purity of air more next
It is lower.
4, the connecting piece for pipelines leakage point of factory is large number of, takes care of the pence, it is difficult to control.
5, it is leaked during pipeline works, it is difficult to accomplish that operating side below in not parking situation repairs.
6, detection, reparation leakage point are time-consuming and laborious, and repair time lags, not in time, and human factor is big, detection data
It is inaccurate.
7, material inherently resource, the part of leakage, which can not be withdrawn, to be resulted in wasting, and increases the cost of chemical products.
8, it is exactly poison gas that gas material is practical, can induce human diseases.
Invention content
The technical problem to be solved by the invention is to provide a kind of material volatile matter that can be effectively prevent in pipeline along
The sealing structure and encapsulating method of highly pressurised liquid baffle type pipe connections between two pipe fittings among junction leakage air.
The technical solution adopted in the present invention is:A kind of sealing structure of highly pressurised liquid baffle type pipe connections includes
The upstream straight tube and downstream straight tube of volatile material flow path are constituted, the downstream straight tube is inserted into the outlet end of the upstream straight tube
Arrival end is simultaneously tightly connected by thread seal, and either, the upstream straight tube docks connection with downstream straight tube, and in junction
It is cased with sealed connecting component, one end of the sealed connecting component with the upstream straight tube is tightly connected by thread seal, described
The other end of sealed connecting component is connect with the mutual grab of downstream straight tube, is provided with gasket seal at the grab, is being passed through
Be provided on the outside of the upstream straight tube of sealed connection and downstream straight tube junction can wrap junction for passing through high pressure
The sealing nested structure that liquid barrier volatile material or VOCs are permeated from junction is respectively set on the sealing nested structure useful
In the inlet for importing high pressure cleaning liquid barrier into the seal chamber of sealing nested structure, and for being discharged in the seal chamber
The gas vent of gas, wherein the high pressure cleaning liquid barrier is used at the sealed connection to upstream straight tube and downstream straight tube
Obstruction seals again are carried out, the inlet is connected by highly pressurised liquid delivery pipe for providing high pressure cleaning liquid barrier
The high pressure cleaning liquid barrier liquid outlet of energy storage tank.
The sealing nested structure includes hermetically sealed case, on the inside of the two-port of the hermetically sealed case and corresponding upstream
The stuffing-box for being useful for close encapsulation chamber is respectively embedded between straight tube and downstream straight tube, the stuffing-box described in two with it is corresponding
It is formed with packing groove between upstream straight tube and the lateral wall of downstream straight tube, airtight and watertight padding is filled in the packing groove, it is described close
Seal the gland for being fixedly connected respectively by screw on two ports of housing and being useful for blocking stuffing-box and airtight and watertight padding, institute
Seal chamber is stated to be formed in the hermetically sealed case medial surface, upstream straight tube outside, downstream straight tube outside and be embedded in hermetically sealed case
Between stuffing-box in two-port, the inlet and gas vent are respectively formed on the hermetically sealed case.
The sealing nested structure includes hermetically sealed case, on the inside of the two-port of the hermetically sealed case and corresponding upstream
The stuffing-box for being useful for close encapsulation chamber is respectively embedded between straight tube and downstream straight tube, the stuffing-box described in two with it is corresponding
It is formed with packing groove between upstream straight tube and the lateral wall of downstream straight tube, airtight and watertight padding is filled in the packing groove, it is described close
Seal the gland for being fixedly connected respectively by screw on two ports of housing and being useful for blocking stuffing-box and airtight and watertight padding, institute
State seal chamber be formed on the inside of the hermetically sealed case, on the outside of the straight tube of upstream, on the outside of the straight tube of downstream, it is on the outside of sealed connecting component and embedding
Between entering the stuffing-box in hermetically sealed case two-port, the inlet and gas vent are respectively formed at the hermetically sealed case
On.
It is respectively arranged with radial direction seal ring and axial sealing ring between the stuffing-box and the hermetically sealed case.
The airtight and watertight padding is sealing ring gasket or sealed packing.
The gland includes for being sleeved on the upstream straight tube or downstream straight tube and being inserted by screw
Screw hole and be fixedly connected on the hold-down grid on hermetically sealed case port, the hold-down grid is positioned at the upstream straight tube or downstream
Straight tube side be formed with outwardly protrude withstand sealing for being inserted into the packing groove on the inside of the stuffing-box external port and fill out
The boss of material.
A kind of blocking method of the sealing structure of highly pressurised liquid baffle type pipe connections is the sealing shroud by pipe connections
Structure can effectively prevent the material in pipeline to volatilize by junction leakage path between high pressure liquid barrier cut-out pipe fitting
Among object between two pipe fittings along air is leaked, accomplish volatile organic compounds zero leakage.
The sealing structure and encapsulating method of the highly pressurised liquid baffle type pipe connections of the present invention are to utilize high pressure liquid barrier
The sealing structure of junction leakage path, can effectively prevent the material volatile matter in pipeline along two between cut-out two pipe fittings
The structure and method among air are leaked between pipe fitting, this method can accomplish that volatile organic compounds (VOCs) zero is let out
Leakage.Advantage of the present invention is as follows:
1, there is no leakage path.
2, material inherently resource, volatile organic compounds (VOCs) zero leakage is not only energy saving but also emission reduction.
3, the pressure in the liquid level and tank in observation, control energy storage tank can prejudge the work of junction between two pipe fittings
Make situation, strick precaution and possible trouble.
4, no matter can conveniently see that the position of water droplet can find the position of leakage, make dimension either with or without material in pipeline
It repaiies and accomplishes to shoot the arrow at the target.
Once 5, leakage can be produced when repairing with on-line maintenance, do not needed shutdown maintenance.
6, the interchangeability being transformed is strong, and input is small.
7, easy to maintain.
8, the fire that explodes and occur is avoided, ensures safety in production.
Description of the drawings
Fig. 1 is the sealing device first structure schematic diagram of the barrier gas material leakage line connector of the prior art;
Fig. 2 is the second structural schematic diagram of sealing device of the barrier gas material leakage line connector of the prior art;
Fig. 3 is the structural schematic diagram of the sealing structure first embodiment of highly pressurised liquid baffle type pipe connections of the present invention;
Fig. 4 is the structural schematic diagram of the sealing structure second embodiment of highly pressurised liquid baffle type pipe connections of the present invention;
Fig. 5 is the structural schematic diagram of gland in the present invention.
In figure
1:Volatile material 2:Upstream straight tube
3:Downstream straight tube 4:Thread seal
5:Sealed connecting component 6:Gasket seal
7:Seal nested structure 7.1:Seal chamber
7.2:Inlet 7.3:Gas vent
7.4:Hermetically sealed case 7.5:Stuffing-box
7.6:Airtight and watertight padding 7.7:Gland
7.71:Screw hole 7.72:Boss
7.73:Hold-down grid 7.8:Radial direction seal ring
7.9:Axial sealing ring 7.10:Screw
8:Highly pressurised liquid delivery pipe 9:Energy storage tank
9.1:Visor 9.2:Exhaust outlet
9.3:High pressure clean gas 9.4:High pressure cleaning liquid barrier
9.5:Liquid outlet
Specific implementation mode
The sealing structure to the highly pressurised liquid baffle type pipe connections of the present invention and sealing with reference to embodiment and attached drawing
Method is described in detail.
The sealing structure and encapsulating method of the highly pressurised liquid baffle type pipe connections of the present invention are to utilize high pressure liquid barrier
The sealing structure of junction leakage path, can effectively prevent the material volatile matter in pipeline along two between cut-out two pipe fittings
Between pipe fitting among leakage air.
As shown in Figure 3, Figure 4, the sealing structure of highly pressurised liquid baffle type pipe connections of the invention includes to constitute volatilization
The upstream straight tube 2 and downstream straight tube 3 of property 1 flow path of material, entering for the downstream straight tube 3 is inserted into the outlet end of the upstream straight tube 2
Mouth end is simultaneously tightly connected by thread seal 4, and either, the upstream straight tube 2 docks connection with downstream straight tube 3, and is connecting
Place is cased with sealed connecting component 5, and one end of the sealed connecting component 5 is to seal to connect by thread seal 4 with the upstream straight tube 2
It connects, the other end of the sealed connecting component 5 is connect with 3 mutual grab of the downstream straight tube, and gasket is provided at the grab
Piece 6, junction can be wrapped by being provided on the outside of 3 junction of upstream straight tube 2 and downstream straight tube by being tightly connected
For obstructing the sealing nested structure 7 that volatile material or VOCs are permeated from junction, the sealing nested structure 7 by highly pressurised liquid
On be separately provided for importing the inlet 7.2 of high pressure cleaning liquid barrier 9.4 into the seal chamber 7.1 of sealing nested structure 7,
And the gas vent 7.3 for gas in the seal chamber 7.1 to be discharged, wherein the high pressure cleaning liquid barrier 9.4 is used for
To being carried out at the sealed connection of upstream straight tube 2 and downstream straight tube 3, obstruction seals, the inlet 7.2 pass through high pressure liquid again
The high pressure cleaning liquid barrier liquid outlet 9.5 of energy storage tank 9 of the connection of body delivery pipe 8 for providing high pressure cleaning liquid barrier 9.4.
As shown in figure 3, the sealing nested structure 7 includes hermetically sealed case 7.4, the two-port of the hermetically sealed case 7.4
The stuffing-box 7.5 for being useful for close encapsulation chamber 7.1 is respectively embedded between inside and corresponding upstream straight tube 2 and downstream straight tube 3,
It is formed with packing groove between stuffing-box 7.5 and corresponding upstream straight tube 2 and the lateral wall of downstream straight tube 3 described in two, institute
It states and is filled with airtight and watertight padding 7.6 in packing groove, the airtight and watertight padding 7.6 is sealing ring gasket or airtight and watertight padding.
It is fixedly connected respectively by screw 7.10 on two ports of the hermetically sealed case 7.4 and is useful for blocking stuffing-box 7.5 and sealing
The gland 7.7 of filler 7.6 is respectively arranged with radial seal between the stuffing-box 7.5 and the hermetically sealed case 7.4
Circle 7.8 and axial sealing ring 7.9.The seal chamber 7.1 be formed in 7.4 medial surface of the hermetically sealed case, the outside of upstream straight tube 2,
Between the outside of downstream straight tube 3 and the stuffing-box 7.5 being embedded in 7.4 two-port of hermetically sealed case, the inlet 7.2 and put
Gas port 7.3 is respectively formed on the hermetically sealed case 7.4.
As shown in figure 4, the sealing nested structure 7 includes hermetically sealed case 7.4, the two-port of the hermetically sealed case 7.4
The stuffing-box 7.5 for being useful for close encapsulation chamber 7.1 is respectively embedded between inside and corresponding upstream straight tube 2 and downstream straight tube 3,
It is formed with packing groove between stuffing-box 7.5 and corresponding upstream straight tube 2 and the lateral wall of downstream straight tube 3 described in two, institute
It states and is filled with airtight and watertight padding 7.6 in packing groove, the airtight and watertight padding 7.6 is sealing ring gasket or sealed packing.
It is fixedly connected respectively by screw 7.10 on two ports of the hermetically sealed case 7.4 and is useful for blocking stuffing-box 7.5 and sealing
The gland 7.7 of filler 7.6 is respectively arranged with radial seal between the stuffing-box 7.5 and the hermetically sealed case 7.4
Circle 7.8 and axial sealing ring 7.9.The seal chamber 7.1 be formed in the inside of the hermetically sealed case 7.4,2 outside of upstream straight tube, under
It is described between trip straight tube 3 outside, 5 outside of sealed connecting component and the stuffing-box 7.5 that is embedded in 7.4 two-port of hermetically sealed case
Inlet 7.2 and gas vent 7.3 be respectively formed on the hermetically sealed case 7.4.
As shown in figure 5, the gland 7.7 includes for being sleeved on the upstream straight tube 2 or downstream straight tube 3
And it is fixedly connected on the hold-down grid 7.73 on 7.44 port of hermetically sealed case by insertion screw hole 7.71 of screw 7.10, it is described to fill out
Material pressing plate 7.73 be formed with positioned at the upstream straight tube 2 or 3 side of downstream straight tube outwardly protrude it is described for being inserted into
The boss 7.72 of airtight and watertight padding 7.6 is withstood in packing groove on the inside of 7.5 external port of stuffing-box.
The blocking method of the sealing structure of the highly pressurised liquid baffle type pipe connections of the present invention is by the close of pipe connections
Seal sleeve structure passes through junction leakage path, the material that can be effectively prevent in pipeline between high pressure liquid barrier cut-out pipe fitting
Among volatile matter between two pipe fittings along air is leaked, accomplish volatile organic compounds zero leakage.
Claims (7)
1. a kind of sealing structure of highly pressurised liquid baffle type pipe connections includes the upstream for constituting volatile material (1) flow path
The outlet end of straight tube (2) and downstream straight tube (3), the upstream straight tube (2) is inserted into the arrival end of the downstream straight tube (3) and is passed through
Thread seal (4) is tightly connected, and either, the upstream straight tube (2) docks connection with downstream straight tube (3), and is covered in junction
It with the upstream straight tube (2) is sealed by thread seal (4) to have sealed connecting component (5), one end of the sealed connecting component (5)
Connection, the other end of the sealed connecting component (5) connect with the downstream straight tube (3) mutually grab, are provided at the grab
Gasket seal (6), which is characterized in that passing through the upstream straight tube (2) being tightly connected and set on the outside of downstream straight tube (3) junction
The sealing for being permeated from junction by highly pressurised liquid barrier volatile material or VOCs of junction can be wrapped by being equipped with
Nested structure (7), described seal are separately provided for importing into the seal chamber (7.1) of sealing nested structure (7) on nested structure (7)
The inlet (7.2) of high pressure cleaning liquid barrier (9.4), and the gas vent for the seal chamber (7.1) interior gas to be discharged
(7.3), wherein the high pressure cleaning liquid barrier (9.4) is used for the sealing to upstream straight tube (2) and downstream straight tube (3) and connects
It meets place and carries out obstruction seals again, the inlet (7.2) is connected clean for providing high pressure by highly pressurised liquid delivery pipe (8)
The high pressure cleaning liquid barrier liquid outlet (9.5) of the energy storage tank (9) of net liquid barrier (9.4).
2. the sealing structure of highly pressurised liquid baffle type pipe connections according to claim 1, which is characterized in that described is close
Seal sleeve structure (7) includes hermetically sealed case (7.4), straight with corresponding upstream on the inside of the two-port of the hermetically sealed case (7.4)
It is respectively embedded into the stuffing-box (7.5) for being useful for close encapsulation chamber (7.1), filling out described in two between pipe (2) and downstream straight tube (3)
It is formed with packing groove, the filler between material letter (7.5) and corresponding upstream straight tube (2) and the lateral wall of downstream straight tube (3)
It is filled with airtight and watertight padding (7.6) in slot, connects respectively by the way that screw (6.9) is fixed on two ports of the hermetically sealed case (7.4)
It is connected to the gland (7.7) for blocking stuffing-box (7.5) and airtight and watertight padding (7.6), the seal chamber (7.1) is formed in institute
It states hermetically sealed case (7.4) medial surface, upstream straight tube (2) outside, downstream straight tube (3) outside and is embedded in hermetically sealed case (7.4)
Between stuffing-box (7.5) in two-port, the inlet (7.2) and gas vent (7.3) are respectively formed at outside the sealing
It covers on (7.4).
3. the sealing structure of highly pressurised liquid baffle type pipe connections according to claim 1, which is characterized in that described is close
Seal sleeve structure (7) includes hermetically sealed case (7.4), straight with corresponding upstream on the inside of the two-port of the hermetically sealed case (7.4)
It is respectively embedded into the stuffing-box (7.5) for being useful for close encapsulation chamber (7.1), filling out described in two between pipe (2) and downstream straight tube (3)
It is formed with packing groove, the filler between material letter (7.5) and corresponding upstream straight tube (2) and the lateral wall of downstream straight tube (3)
It is filled with airtight and watertight padding (7.6) in slot, connects respectively by the way that screw (6.9) is fixed on two ports of the hermetically sealed case (7.4)
It is connected to the gland (7.7) for blocking stuffing-box (7.5) and airtight and watertight padding (7.6), the seal chamber (7.1) is formed in institute
State hermetically sealed case (7.4) inside, upstream straight tube (2) outside, downstream straight tube (3) outside, sealed connecting component (5) outside and insertion
Between stuffing-box (7.5) in hermetically sealed case (7.4) two-port, the inlet (7.2) and gas vent (7.3) difference shape
At on the hermetically sealed case (7.4).
4. the sealing structure of highly pressurised liquid baffle type pipe connections according to claim 2 or 3, which is characterized in that described
Stuffing-box (7.5) and the hermetically sealed case (7.4) between be respectively arranged with radial direction seal ring (7.8) and axial sealing ring
(7.9)。
5. the sealing structure of highly pressurised liquid baffle type pipe connections according to claim 2 or 3, which is characterized in that described
Airtight and watertight padding (7.6) be sealing ring gasket or sealed packing.
6. the sealing structure of highly pressurised liquid baffle type pipe connections according to claim 2 or 3, which is characterized in that described
Gland (7.7) include for being sleeved on the upstream straight tube (2) or downstream straight tube (3) and by screw (7.10)
It is inserted into screw hole (7.71) and is fixedly connected on the hold-down grid (7.73) on hermetically sealed case (7.44) port, the hold-down grid
(7.73) be formed with positioned at the upstream straight tube (2) or downstream straight tube (3) side outwardly protrude it is described for being inserted into
The boss (7.72) of airtight and watertight padding (7.6) is withstood in packing groove on the inside of stuffing-box (7.5) external port.
7. a kind of blocking method of the sealing structure of highly pressurised liquid baffle type pipe connections described in claim 1, feature exist
In, it is the sealing nested structure by pipe connections, it, can by junction leakage path between high pressure liquid barrier cut-out pipe fitting
Effectively prevent the material volatile matter in pipeline along between two pipe fittings leak air among, accomplish volatile organic compounds zero
Leakage.
Priority Applications (1)
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CN201810887212.4A CN108644493A (en) | 2018-08-06 | 2018-08-06 | The sealing structure and encapsulating method of highly pressurised liquid baffle type pipe connections |
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CN201810887212.4A CN108644493A (en) | 2018-08-06 | 2018-08-06 | The sealing structure and encapsulating method of highly pressurised liquid baffle type pipe connections |
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Family
ID=63760832
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CN201810887212.4A Pending CN108644493A (en) | 2018-08-06 | 2018-08-06 | The sealing structure and encapsulating method of highly pressurised liquid baffle type pipe connections |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112005812A (en) * | 2020-09-23 | 2020-12-01 | 翔天菌业集团股份有限公司 | Conveying isolation device for raw materials for cultivating edible fungi between tank bodies |
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CN112005812A (en) * | 2020-09-23 | 2020-12-01 | 翔天菌业集团股份有限公司 | Conveying isolation device for raw materials for cultivating edible fungi between tank bodies |
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