CN108644517A - The flange seal nested structure and encapsulating method of highly pressurised liquid baffle type pipe connections - Google Patents
The flange seal nested structure and encapsulating method of highly pressurised liquid baffle type pipe connections Download PDFInfo
- Publication number
- CN108644517A CN108644517A CN201810891226.3A CN201810891226A CN108644517A CN 108644517 A CN108644517 A CN 108644517A CN 201810891226 A CN201810891226 A CN 201810891226A CN 108644517 A CN108644517 A CN 108644517A
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- Prior art keywords
- straight tube
- downstream
- upstream
- flange
- seal
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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
-
- 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
- F16L43/00—Bends; Siphons
-
- 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
- F16L43/00—Bends; Siphons
- F16L43/02—Bends; Siphons adapted to make use of special securing means
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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 flange seal nested structure and encapsulating method of highly pressurised liquid baffle type pipe connections,There is the upstream straight tube for being sequentially connected and constituting volatile material channel,Bend pipe and downstream straight tube,Positioned at middle part bend pipe with positioned at both ends upstream straight tube and downstream straight tube be to be connect by thread seal,Cover board and gasket seal are stamped by cover screw in opening at bend pipe external corners,Upstream straight tube in volatile material channel,Sealing flange set mechanism is integrally provided on the outside of bend pipe and downstream straight tube,It is separately provided for importing high pressure cleaning liquid barrier in sealing flange set mechanism into the seal chamber that sealing flange covers mechanism to upstream straight tube,The inlet that the opening of the junction and bend pipe external corners of bend pipe and downstream straight tube is sealed and the gas vent for sealing intracavity gas to be discharged,Inlet connects the clean 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 flange seal nested 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, wherein volatile material 1 flows through sequentially connected upstream straight tube
2, bend pipe 3 and downstream straight tube 4, the sealing between three pipes is realized by thread seal 5, at 3 external corners of the bend pipe
Opening be to be fixed with cover board 6 and gasket seal 7 by what cover screw 8 sealed.The material of thread seal is raw material band or fiber crops
It restricts, the material for the gasket seal being open at 3 external corners of bend pipe is rubber, polytetrafluoroethylene (PTFE) etc..Due to volatile material or wave
The penetration of hair property organic compound (VOCs) is far longer than liquid material, so in upstream straight tube 2, bend pipe 3 and downstream straight tube 4
Arbitrary two pipe between and 3 external corners of bend pipe at opening be constantly present the leakage of a certain amount of inorganization, and this leakage rate
It is uninterrupted, this leakage rate is increasing over time.It is difficult to find the specific location of leakage, it is also difficult to
It is thoroughly repaired, often obviously knows that 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, and the air mixture ratio increase in the volatile gas and air that leak out in this way will cause explosion,
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 flange seal nested structure of highly pressurised liquid baffle type pipe connections between two pipe fittings among junction leakage air and sealing side
Method.
The technical solution adopted in the present invention is：A kind of flange seal nested structure of highly pressurised liquid baffle type pipe connections,
Include the upstream straight tube, bend pipe and downstream straight tube for being sequentially connected and constituting volatile material channel, be located at middle part bend pipe with
Upstream straight tube positioned at both ends with downstream straight tube is connected by thread seal, is passed through in the opening at the bend pipe external corners
Cover board and gasket seal are stamped in cover screw sealing, the described upstream straight tube for constituting volatile material channel, bend pipe and
Volatile material or the sealing flange of the infiltration of VOCs can be obstructed by highly pressurised liquid by being integrally provided on the outside of the straight tube of downstream
Mechanism is covered, it is clean that the importing high pressure into the seal chamber that sealing flange covers mechanism is separately provided in sealing flange set mechanism
What net liquid barrier was sealed the junction of upstream straight tube, bend pipe and downstream straight tube and the opening of bend pipe external corners
Inlet and for be discharged it is described sealing intracavity gas gas vent, wherein the inlet passes through highly pressurised liquid delivery pipe
Connect the clean liquid barrier liquid outlet of the energy storage tank for providing highly pressurised liquid.
Sealing flange set mechanism includes upstream flange set and downstream flange set, and the upstream flange covers and downstream method
The connecting flange of orchid set is symmetrically located in the corner of the bend pipe, and the connecting flange described in two is bolted to connection,
Gasket is provided between connecting flange described in two, the upstream port of the upstream flange set is provided with upstream seal bridging
The downstream port of structure, the downstream flange set is provided with downstream seal bridging structure, and the seal chamber is formed in sealed connection
Upstream flange covers between the inner wall and sequentially connected upstream straight tube, bend pipe and the outer wall of downstream straight tube of downstream flange set, institute
The inlet stated is formed in the upstream flange set and corresponds on the jacket wall at the upstream straight tube, and the gas vent is formed in institute
Downstream flange set is stated to correspond on the jacket wall at the downstream straight tube.
The upstream seal bridging structure is identical with downstream seal bridging structure, includes：It is entrapped in the upstream
The stuffing-box for axial seal in flange sleeve or downstream flange set port, is formed in recessed on the inside of the stuffing-box external port
Slot has been embedded in airtight and watertight padding, is fixedly connected and is useful for admittedly by screw on the outside of the upstream flange set or downstream flange set port
Determine the gland of airtight and watertight padding.
The stuffing-box and the upstream flange set or downstream flange set between be respectively arranged with radial direction seal ring and
Axial sealing ring.
The airtight and watertight padding is sealing ring gasket or 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 upstream flange set or downstream flange set port on hold-down grid, the hold-down grid is positioned at described
Upstream straight tube or downstream straight tube side are formed with the groove for being inserted on the inside of the stuffing-box external port outwardly protruded
Inside it is pressed against the protrusion of seal.
A kind of blocking method of the flange seal nested structure of highly pressurised liquid baffle type pipe connections, by the method for pipe connections
Orchid sealing nested structure, the channel of junction leakage between pipe fitting is cut off by high pressure liquid barrier, can be effectively prevent in pipeline
Volatile organic compounds along air is leaked between two pipe fittings among, accomplish the zero leakage of material volatile matter.
The flange seal nested structure and encapsulating method of the highly pressurised liquid baffle type pipe connections of the present invention are to utilize high pressure drag
The sealing structure of junction leakage path, can effectively prevent the material volatile matter edge in pipeline between liquid cuts off two pipe fittings
VOCs zero leakages can be accomplished by structure and method among leakage air, this method between two pipe fittings.Advantage of the present invention
It is as follows：
1, there is no leakage path.
2, material inherently resource, VOCs zero leakages are 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 schematic diagram of sealing device of the barrier gas material leakage line connector of the prior art；
Fig. 2 is the structural schematic diagram of the flange seal nested structure of the highly pressurised liquid baffle type pipe connections of the present invention；
Fig. 3 is the structural schematic diagram of gland in the present invention.
In figure
1：Volatile material 2：Upstream straight tube
3：Bend pipe 4：Downstream straight tube
5：Thread seal 6：Cover board
7：Gasket seal 8：Cover screw
9：Sealing flange covers mechanism 9.1：Inlet
9.2：Gas vent 9.3：Seal chamber
9.4：Upstream flange set 9.5：Downstream flange set
9.6：Bolt 9.7：Gasket
9.8：Stuffing-box 9.9：Groove
9.10：Airtight and watertight padding 9.11：Gland
9.111：Hold-down grid 9.112：Boss
9.113：Screw hole 9.12：Screw
9.13：Axial sealing ring 9.14：Radial direction seal ring
10：Highly pressurised liquid delivery pipe 11：Energy storage tank
11.1：Visor 11.2：Exhaust outlet
11.3：High pressure clean gas 11.4：Clean liquid barrier
11.5：Liquid outlet
Specific implementation mode
With reference to embodiment and attached drawing to the flange seal nested structure of the highly pressurised liquid baffle type pipe connections of the present invention
It is described in detail with encapsulating method.
As shown in Fig. 2, the flange seal nested structure of the highly pressurised liquid baffle type pipe connections of the present invention, includes to connect successively
The upstream straight tube 2, bend pipe 3 and downstream straight tube 4 in 1 channel of volatile material are connect and constituted, the bend pipe 3 at middle part is located at and is located at both ends
Upstream straight tube 2 and downstream straight tube 4 be to be connected by thread seal 5, pass through cover board in the opening at 3 external corners of the bend pipe
What screw 8 sealed is stamped cover board 6 and gasket seal 7, which is characterized in that in the upstream for constituting 1 channel of volatile material
The outside of straight tube 2, bend pipe 3 and downstream straight tube 4, which is integrally provided with, to obstruct volatile material or VOCs by highly pressurised liquid
The sealing flange of infiltration covers mechanism 9, is separately provided for covering mechanism 9 to sealing flange in sealing flange set mechanism 9
Junction and bend pipe 3 of the high pressure cleaning liquid barrier to upstream straight tube 2, bend pipe 3 and downstream straight tube 4 are imported in seal chamber 9.3
The inlet 9.1 that the opening of external corners is sealed and the gas vent 9.2 for gas in the seal chamber 9.3 to be discharged,
Wherein, the inlet 9.1 connects the cleaning of the energy storage tank 11 for providing highly pressurised liquid by highly pressurised liquid delivery pipe 10
Liquid barrier liquid outlet 11.5.
Sealing flange set mechanism 9 includes upstream flange set 9.4 and downstream flange set 9.5, the upstream flange set
9.4 and the connecting flange of downstream flange set 9.5 be symmetrically located in the corner of the bend pipe 3, the connecting flange described in two is logical
Cross bolt 9.6 to be fixedly connected, be provided with gasket 9.7 between the connecting flange described in two, the upstream flange set 9.4 it is upper
Trip port is provided with upstream seal bridging structure, and the downstream port of the downstream flange set 9.5 is provided with downstream seal bridging structure, institute
The seal chamber 9.3 stated be formed in sealed connection upstream flange set 9.4 and downstream flange set 9.5 inner wall with it is sequentially connected on
It swims between straight tube 2, bend pipe 3 and the outer wall of downstream straight tube 4, the inlet 9.1 is formed in the upstream flange set 9.4 and corresponds to
On jacket wall at the upstream straight tube 2, the gas vent 9.2 is formed in the downstream flange set 9.5 and corresponds to the downstream
On jacket wall at straight tube 4.
The upstream seal bridging structure is identical with downstream seal bridging structure, includes：It is entrapped in the upstream
Flange sleeve 9.4 or downstream flange cover the stuffing-box 9.8 for axial seal in 9.5 ports, are formed in outside the stuffing-box 9.8
Groove 9.9 on the inside of port has been embedded in airtight and watertight padding 9.10, and the upstream flange set 9.4 or downstream flange cover outside 9.5 ports
Side is fixedly connected with the gland 9.11 for being useful for fixing seal filler 9.10 by screw 9.12.The airtight and watertight padding 9.10
It is sealing ring gasket or packing.The stuffing-box 9.8 and the upstream flange set 9.4 or downstream flange set
Radial direction seal ring 9.14 and axial sealing ring 9.13 are respectively arranged between 9.5.
As shown in figure 3, the gland 9.11 includes for being sleeved on the upstream straight tube 2 or downstream straight tube 4
Above and screw hole 9.113 is inserted by screw 9.12 by is fixedly connected on 9.5 ports of upstream flange set 9.4 or downstream flange set
Hold-down grid 9.111, the hold-down grid 9.111 are formed with outward positioned at the upstream straight tube 2 or 4 side of downstream straight tube
Protrusion is used to be inserted into the boss for being pressed against airtight and watertight padding 9.10 in the groove 9.9 on the inside of 9.8 external port of the stuffing-box
9.112。
The blocking method of the flange seal nested structure of the highly pressurised liquid baffle type pipe connections of the present invention is connected by pipe
The flange seal nested structure of part is cut off the channel of junction leakage between pipe fitting by high pressure liquid barrier, can effectively prevent
Among volatile organic compounds in pipeline between two pipe fittings along air is leaked into, accomplish that the zero of material volatile matter lets out
Leakage.
Claims (7)
1. a kind of flange seal nested structure of highly pressurised liquid baffle type pipe connections, includes to be sequentially connected and constitute volatility object
Expect upstream straight tube (2), bend pipe (3) and the downstream straight tube (4) in (1) channel, is located at the bend pipe (3) at middle part and the upstream for being located at both ends
Straight tube (2) and downstream straight tube (4) are connected by thread seal (5), pass through lid in the opening at bend pipe (3) external corners
Cover board (6) and gasket seal (7) are stamped in plate bolt (8) sealing, which is characterized in that in the composition volatile material (1)
It is integrally provided with to obstruct by highly pressurised liquid on the outside of the upstream straight tube (2) in channel, bend pipe (3) and downstream straight tube (4) and wave
The sealing flange set mechanism (9) of the infiltration of hair property material or VOCs, the sealing flange covers to be separately provided in mechanism (9)
To sealing flange set mechanism (9) seal chamber (9.3) in import high pressure cleaning liquid barrier to upstream straight tube (2), bend pipe (3) and
Inlet (9.1) that the junction of downstream straight tube (4) and the opening of bend pipe (3) external corners are sealed and for being discharged
The gas vent (9.2) of the interior gas of the seal chamber (9.3), wherein the inlet (9.1) passes through highly pressurised liquid delivery pipe
(10) the clean liquid barrier liquid outlet (11.5) of energy storage tank (11) of the connection for providing highly pressurised liquid.
2. the flange seal nested structure of highly pressurised liquid baffle type pipe connections according to claim 1, which is characterized in that institute
It includes upstream flange set (9.4) and downstream flange set (9.5), the upstream flange set (9.4) to state sealing flange set mechanism (9)
The corner of the bend pipe (3) is symmetrically located in the connecting flange of downstream flange set (9.5), the connecting flange described in two is logical
It crosses bolt (9.6) to be fixedly connected, gasket (9.7), the upstream flange set is provided between the connecting flange described in two
(9.4) upstream port is provided with upstream seal bridging structure, and it is close that the downstream port of the downstream flange set (9.5) is provided with downstream
Plugging structure, the seal chamber (9.3) are formed in the upstream flange set (9.4) and downstream flange set (9.5) of sealed connection
Between inner wall and sequentially connected upstream straight tube (2), bend pipe (3) and the outer wall of downstream straight tube (4), the inlet (9.1)
The upstream flange set (9.4) is formed in corresponding on the jacket wall at the upstream straight tube (2), the gas vent (9.2) is formed
Correspond on the jacket wall at the downstream straight tube (4) in the downstream flange set (9.5).
3. the flange seal nested structure of highly pressurised liquid baffle type pipe connections according to claim 2, which is characterized in that institute
The upstream seal bridging structure stated is identical with downstream seal bridging structure, includes：It is entrapped in the upstream flange set (9.4)
Or the stuffing-box (9.8) for axial seal in downstream flange set (9.5) port, it is formed in the stuffing-box (9.8) outer end
Groove (9.9) on the inside of mouthful has been embedded in airtight and watertight padding (9.10), the upstream flange set (9.4) or downstream flange set (9.5)
The gland (9.11) for being useful for fixing seal filler (9.10) is fixedly connected with by screw (9.12) on the outside of port.
4. the flange seal nested structure of highly pressurised liquid baffle type pipe connections according to claim 3, which is characterized in that institute
It is respectively arranged with radial seal between the stuffing-box (9.8) and the upstream flange set (9.4) or downstream flange set (9.5) stated
Enclose (9.14) and axial sealing ring (9.13).
5. the flange seal nested structure of highly pressurised liquid baffle type pipe connections according to claim 3, which is characterized in that institute
The airtight and watertight padding (9.10) stated is sealing ring gasket or packing.
6. the flange seal nested structure of highly pressurised liquid baffle type pipe connections according to claim 3, which is characterized in that institute
The gland (9.11) stated includes for being sleeved on the upstream straight tube (2) or downstream straight tube (4) and passing through screw
(9.12) it is inserted into screw hole (9.113) and is fixedly connected on the filler on upstream flange set (9.4) or downstream flange set (9.5) port
Pressing plate (9.111), the hold-down grid (9.111) are formed with positioned at the upstream straight tube (2) or downstream straight tube (4) side
It is pressed against seal (9.10) in the groove (9.9) for being inserted on the inside of the stuffing-box (9.8) external port outwardly protruded
Protrusion (9.112).
7. a kind of blocking method of the flange seal nested structure of highly pressurised liquid baffle type pipe connections described in claim 1,
It is characterized in that, by the flange seal nested structure of pipe connections, junction leaks between cutting off pipe fitting by high pressure liquid barrier
Channel done among the volatile organic compounds that can be effectively prevent in pipeline between two pipe fittings along air is leaked into
To the zero leakage of material volatile matter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810891226.3A CN108644517A (en) | 2018-08-06 | 2018-08-06 | The flange seal nested structure and encapsulating method of highly pressurised liquid baffle type pipe connections |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810891226.3A CN108644517A (en) | 2018-08-06 | 2018-08-06 | The flange seal nested structure and encapsulating method of highly pressurised liquid baffle type pipe connections |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108644517A true CN108644517A (en) | 2018-10-12 |
Family
ID=63760726
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810891226.3A Pending CN108644517A (en) | 2018-08-06 | 2018-08-06 | The flange seal nested structure and encapsulating method of highly pressurised liquid baffle type pipe connections |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108644517A (en) |
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| CN108105146A (en) * | 2018-01-30 | 2018-06-01 | 邢天宜 | Using the system of the wet sealing cut-out wind turbine gas material leakage with liquid barrier |
| CN208619928U (en) * | 2018-08-06 | 2019-03-19 | 天津长瑞大通流体控制系统有限公司 | The flange seal nested structure of highly pressurised liquid baffle type pipe connections |
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2018
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JPH0942581A (en) * | 1995-07-26 | 1997-02-14 | Hakko Co Ltd | Aseismic reinforcing device for life line conduit run |
| JP2007217895A (en) * | 2006-02-14 | 2007-08-30 | Kubota Corp | Leg part bend for drain pipe |
| CN101542259A (en) * | 2006-11-21 | 2009-09-23 | 卡泊尔投资公司 | External pipe testing tool and testing method using same |
| CN204345150U (en) * | 2014-11-28 | 2015-05-20 | 成都市都得利管业有限公司 | A kind of bend pipe |
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| CN206369047U (en) * | 2016-12-03 | 2017-08-01 | 许川 | A kind of material filling type Pipe leakage stopper |
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