CN106838318A - High temperature resistant self-tightening type high-temperature and high-pressure sealing device and encapsulating method - Google Patents
High temperature resistant self-tightening type high-temperature and high-pressure sealing device and encapsulating method Download PDFInfo
- Publication number
- CN106838318A CN106838318A CN201510879326.0A CN201510879326A CN106838318A CN 106838318 A CN106838318 A CN 106838318A CN 201510879326 A CN201510879326 A CN 201510879326A CN 106838318 A CN106838318 A CN 106838318A
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- Prior art keywords
- pressure
- packing
- ring
- sealing device
- main shaft
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Abstract
A kind of high temperature resistant self-tightening type high-temperature and high-pressure sealing device and encapsulating method.Current sealing device form is a lot, has gasket seal, mechanical seal, packing seal, dry gas seals, magnetic force close
Envelope, labyrinth seal etc.
,
In the case of only high pressure or high temperature
,
Such good seal is used
,
If HTHP is present simultaneously
,
Particularly temperature exceedes
300
DEG C when be difficult to ensure its performance.A kind of high temperature resistant self-tightening type high-temperature and high-pressure sealing device, its composition includes：Main shaft（
1
）, described main shaft passes through packing box assembly（
11
）, described packing box assembly and the gland with sphere（
8
）Connection, a side end face of the described gland with sphere and disc spring（
9
）Connection, described disc spring and gland bolt（
10
）Connection, has through hole on described packing box assembly.
The present invention is applied to sealing device.
Description
Technical field：
The present invention relates to a kind of high temperature resistant self-tightening type high-temperature and high-pressure sealing device and encapsulating method.
Background technology：
Current sealing device form is a lot, there is gasket seal, mechanical seal, packing seal, dry gas seals, magnetic seal, labyrinth seal etc.
,
In the case of only high pressure or high temperature
,
Such good seal is used
,
If HTHP is present simultaneously
,
Particularly temperature exceedes
300
DEG C when be difficult to ensure its performance.Mechanical seal, dry gas seals, labyrinth seal apply in general to speed conditions high
;
During packing seal, magnetic seal are applied in general to, slow-speed of revolution situation.Magnetic seal is a kind of inclusion seal
,
But temperature exceedes
300
DEG C when magnet demagnetization quickly
;
Mechanical seal, dry gas seals need lubrication
,
Temperature exceedes
250
℃“
O
" type rubber seal will coking and fail.
In the prior art
,
The structure of the dynamic sealing stuffing box of pressure vessel is as described in data
,
Including casing
,
Casing center is main shaft
,
Soft filler is set around main shaft
,
Oil filling pipe is connect by filler
,
The outside of filler sets cooling water tank and cooling water outlet and inlet
,
Filler outer end is installed by gland
,
Gland is fixed on casing by regulating bolt.This dynamic sealing stuffing box voltage endurance capability is
0.6
~
1.2MPa,
Operating temperature is
150
~
250
℃
,
It is only applicable to low pressure vessel.Need often to add lubricating oil to stuffing box during work
,
Parts of lubricating oil can be flowed into container along gap of main reinforcement
,
Contaminated material.In addition
,
Lubricating oil oil pipe is easily blocked
,
Main shaft surface abrasion can be caused and failed.
The content of the invention：
It is an object of the invention to provide a kind of high temperature resistant self-tightening type high-temperature and high-pressure sealing device and encapsulating method.
Above-mentioned purpose is realized by following technical scheme：
A kind of high temperature resistant self-tightening type high-temperature and high-pressure sealing device, its composition includes：Main shaft, described main shaft passes through packing box assembly, described packing box assembly to be connected with the gland with sphere, and a side end face of the described gland with sphere is connected with disc spring, and described disc spring is connected with gland bolt, has through hole on described packing box assembly.
A kind of described high temperature resistant self-tightening type high-temperature and high-pressure sealing device, is connected on the axial plane of described main shaft with back ring, is left between described back ring and support ring one
0.5mm
Space, described support ring one is connected with pressure ring one, and the end face of described pressure ring one is connected with graphite packing packing one, and described graphite packing packing one is connected with gas distribution rings.
A kind of described high temperature resistant self-tightening type high-temperature and high-pressure sealing device, the opposite side of described gas distribution rings is connected with support ring two, described support ring two is connected with pressure ring two, and described pressure ring two is connected with graphite packing packing two, and described graphite packing packing two is connected with spherical surface compression ring.
Described high temperature resistant self-tightening type high-temperature and high-pressure sealing device, described pressure ring one, described pressure ring two are with θ
150
° taper, described graphite packing packing one, described graphite packing packing two are made up of the pure high-quality graphite line of interlacing, and one group of circular hole of being scrounged in described gas distribution rings, described circular hole is evenly distributed on described main shaft.
The encapsulating method of described high temperature resistant self-tightening type high-temperature and high-pressure sealing device, the method comprises the following steps：
Back ring is first being filled on high-tension side main shaft, back ring is provided with annular space near high pressure side,
,
Installation diameter of the annular space diameter less than filler
,
The enterable annular space of pressure for producing high-pressure side
,
Pressure in annular space is equal with container inner pressure
,
Certain thrust so is produced to filler on main shaft
,
Self sealss can be played a part of
,
And with the rising of pressure
,
Sealing effectiveness is more preferable, while the hold-down bolt with disc spring on the gland with sphere
,
When pressure oscillation or expand with heat and contract with cold
,
Compensated by the elasticity of disc spring
,
Ensure that filler is squeezed
,
Reduce the gap between filler and main shaft
,
Improve sealing effectiveness.
Beneficial effects of the present invention：
1.
Pressure high-temp resistant ability of the present invention is high
:
This device operating pressure is
2.0
~
20.0MPa,
While high pressure
,
Can also heatproof be
200
~
650
℃
,
And the applicable working condition of existing technology is
:1.0MPa
、
450
DEG C or
5.0MPa
、
250
℃.Good seal performance
:
The present apparatus is used
ChestertonTwo
Superior graphite packing
,
The temperature in use under non-oxidizing atmosphere
2760
℃
,
Bear rotating speed
23m/s,
It is resistant to chemical etching
pH0
~
14
。
The present invention has that heatproof is high, high conductance and automatic self-lubricating property make it not produce cut to main shaft substantially in use.Be pressurized uniform raising sealing property
:
The present apparatus is using back ring, spherical surface compression ring, sphere gland with annular space
,
Uniform-compression when principal security high pressure and low pressure both sides are compressed to filler
,
And self sealss are played a part of to filler
,
Improve sealing property.High pressure low temperature gas auxiliary seal
:
The gas being typically filled with is inert gas
,
Its pressure is generally greater than the pressure in container
0.1
~
0.5kPa,
The effect of the gas is essentially consisted in
:
One is have cooling effect to filler
;
Two is to make to be in oxygen-free environment around filler
,
Protection filler is not oxidized
;
Three is to prevent gas in container from leaking.Self-tightening disc spring
:
The hold-down bolt with disc spring is used on sphere gland
,
It is primarily subjected to mechanical shock, pressure oscillation or expands with heat and contract with cold
,
Compensated by the elasticity of disc spring
,
Ensure that filler is squeezed
,
Reduce the gap between filler and main shaft
,
Improve sealing effectiveness.
Brief description of the drawings：
Accompanying drawing
1
It is structural representation of the invention.
Specific embodiment：
Embodiment
1
：
A kind of high temperature resistant self-tightening type high-temperature and high-pressure sealing device, its composition includes：Main shaft
1
, described main shaft passes through packing box assembly
11
, described packing box assembly and the gland with sphere
8
Connection, a side end face of the described gland with sphere and disc spring
9
Connection, described disc spring and gland bolt
10
Connection, has through hole on described packing box assembly.
Embodiment
2
：
According to embodiment
1
Described high temperature resistant self-tightening type high-temperature and high-pressure sealing device, with back ring on the axial plane of described main shaft
2
Connection, described back ring and support ring one
3
Between leave
0.5mm
Space, described support ring one and pressure ring one
4
Connection, end face and the graphite packing packing one of described pressure ring one
5
Connection, described graphite packing packing one and gas distribution rings
6
Connection.
Embodiment
3
：
According to embodiment
1
Or
2
Described high temperature resistant self-tightening type high-temperature and high-pressure sealing device, opposite side and the support ring two of described gas distribution rings
12
Connection, described support ring two and pressure ring two
13
Connection, described pressure ring two and graphite packing packing two
14
Connection, described graphite packing packing two and spherical surface compression ring
7
Connection.
Embodiment
4
：
According to embodiment
1
Or
2
Or
3
Described high temperature resistant self-tightening type high-temperature and high-pressure sealing device, described pressure ring one, described pressure ring two are with θ
150
° taper, described graphite packing packing one, described graphite packing packing two are made up of the pure high-quality graphite line of interlacing, and one group of circular hole of being scrounged in described gas distribution rings, described circular hole is evenly distributed on described main shaft.
Embodiment
5
：
A kind of embodiment
1
—
4
The encapsulating method of described high temperature resistant self-tightening type high-temperature and high-pressure sealing device, the method comprises the following steps：
Back ring is first being filled on high-tension side main shaft, back ring is provided with annular space near high pressure side,
,
Installation diameter of the annular space diameter less than filler
,
The enterable annular space of pressure for producing high-pressure side
,
Pressure in annular space is equal with container inner pressure
,
Certain thrust so is produced to filler on main shaft
,
Self sealss can be played a part of
,
And with the rising of pressure
,
Sealing effectiveness is more preferable, while the hold-down bolt with disc spring on the gland with sphere
,
When pressure oscillation or expand with heat and contract with cold
,
Compensated by the elasticity of disc spring
,
Ensure that filler is squeezed
,
Reduce the gap between filler and main shaft
,
Improve sealing effectiveness.
Claims (5)
1. a kind of high temperature resistant self-tightening type high-temperature and high-pressure sealing device, its composition includes：Main shaft, it is characterized in that：Described main shaft passes through packing box assembly, described packing box assembly to be connected with the gland with sphere, and a side end face of the described gland with sphere is connected with disc spring, and described disc spring is connected with gland bolt, has through hole on described packing box assembly.
2. a kind of high temperature resistant self-tightening type high-temperature and high-pressure sealing device according to claim 1, it is characterized in that：It is connected with back ring on the axial plane of described main shaft, the space of 0.5mm is left between described back ring and support ring one, described support ring one is connected with pressure ring one, and the end face of described pressure ring one is connected with graphite packing packing one, and described graphite packing packing one is connected with gas distribution rings.
3. a kind of high temperature resistant self-tightening type high-temperature and high-pressure sealing device according to claim 1 and 2, it is characterized in that：The opposite side of described gas distribution rings is connected with support ring two, and described support ring two is connected with pressure ring two, and described pressure ring two is connected with graphite packing packing two, and described graphite packing packing two is connected with spherical surface compression ring.
4. the high temperature resistant self-tightening type high-temperature and high-pressure sealing device according to claim 1 or 2 or 3, it is characterized in that：Described pressure ring one, described pressure ring two is 150 ° of tapers with θ, described graphite packing packing one, described graphite packing packing two are made up of the pure high-quality graphite line of interlacing, scrounged in described gas distribution rings one group of circular hole, described circular hole is evenly distributed on described main shaft.
5. the encapsulating method of the high temperature resistant self-tightening type high-temperature and high-pressure sealing device described in a kind of claim 1-4, it is characterized in that：The method comprises the following steps：
Back ring is first being filled on high-tension side main shaft, back ring is provided with annular space near high pressure side, , installation diameter of the annular space diameter less than filler, the enterable annular space of pressure for producing high-pressure side, pressure in annular space is equal with container inner pressure, certain thrust so is produced to filler on main shaft, self sealss can be played a part of, and with the rising of pressure, sealing effectiveness is more preferable, there is the hold-down bolt of disc spring on the gland with sphere simultaneously, when pressure oscillation or expand with heat and contract with cold, compensated by the elasticity of disc spring, ensure that filler is squeezed, reduce the gap between filler and main shaft, improve sealing effectiveness.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510879326.0A CN106838318A (en) | 2015-12-05 | 2015-12-05 | High temperature resistant self-tightening type high-temperature and high-pressure sealing device and encapsulating method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510879326.0A CN106838318A (en) | 2015-12-05 | 2015-12-05 | High temperature resistant self-tightening type high-temperature and high-pressure sealing device and encapsulating method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106838318A true CN106838318A (en) | 2017-06-13 |
Family
ID=59148660
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510879326.0A Pending CN106838318A (en) | 2015-12-05 | 2015-12-05 | High temperature resistant self-tightening type high-temperature and high-pressure sealing device and encapsulating method |
Country Status (1)
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|---|---|
| CN (1) | CN106838318A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107600901A (en) * | 2017-09-14 | 2018-01-19 | 湖北天宜机械股份有限公司 | A kind of lignite high temperature pyrolysis semicoke conveying equipment special, carrying method and application |
| CN108223800A (en) * | 2018-01-03 | 2018-06-29 | 马鞍山市吉利机械设备有限公司 | A kind of filter and its shaft seal assembly with excellent seal |
| CN109210270A (en) * | 2017-07-01 | 2019-01-15 | 上海威纳工程技术有限公司 | A kind of pressure essence control type packing installation method |
| CN109349942A (en) * | 2018-10-18 | 2019-02-19 | 陈姿璇 | A kind of anti-dropout hingle and its anti-dropout method |
| CN110762284A (en) * | 2019-10-31 | 2020-02-07 | 湖北航天技术研究院总体设计所 | High-temperature high-pressure reciprocating shaft sealing gas valve |
| CN112228562A (en) * | 2020-11-05 | 2021-01-15 | 北京化工大学 | Radial self-tightening type packing sealing device and system |
-
2015
- 2015-12-05 CN CN201510879326.0A patent/CN106838318A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109210270A (en) * | 2017-07-01 | 2019-01-15 | 上海威纳工程技术有限公司 | A kind of pressure essence control type packing installation method |
| CN107600901A (en) * | 2017-09-14 | 2018-01-19 | 湖北天宜机械股份有限公司 | A kind of lignite high temperature pyrolysis semicoke conveying equipment special, carrying method and application |
| CN107600901B (en) * | 2017-09-14 | 2023-10-20 | 湖北天宜机械股份有限公司 | Special conveying equipment, conveying method and application for lignite pyrolysis semicoke |
| CN108223800A (en) * | 2018-01-03 | 2018-06-29 | 马鞍山市吉利机械设备有限公司 | A kind of filter and its shaft seal assembly with excellent seal |
| CN109349942A (en) * | 2018-10-18 | 2019-02-19 | 陈姿璇 | A kind of anti-dropout hingle and its anti-dropout method |
| CN109349942B (en) * | 2018-10-18 | 2021-11-02 | 陈姿璇 | Anti-falling pot handle and anti-falling method thereof |
| CN110762284A (en) * | 2019-10-31 | 2020-02-07 | 湖北航天技术研究院总体设计所 | High-temperature high-pressure reciprocating shaft sealing gas valve |
| CN110762284B (en) * | 2019-10-31 | 2021-08-03 | 湖北航天技术研究院总体设计所 | High-temperature high-pressure reciprocating shaft sealing gas valve |
| CN112228562A (en) * | 2020-11-05 | 2021-01-15 | 北京化工大学 | Radial self-tightening type packing sealing device and system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170613 |
|
| WD01 | Invention patent application deemed withdrawn after publication |