CN201090872Y - Direct-buried pouring and filling sleeve compensator - Google Patents
Direct-buried pouring and filling sleeve compensator Download PDFInfo
- Publication number
- CN201090872Y CN201090872Y CNU2007200136420U CN200720013642U CN201090872Y CN 201090872 Y CN201090872 Y CN 201090872Y CN U2007200136420 U CNU2007200136420 U CN U2007200136420U CN 200720013642 U CN200720013642 U CN 200720013642U CN 201090872 Y CN201090872 Y CN 201090872Y
- Authority
- CN
- China
- Prior art keywords
- sleeve
- sealing
- seal
- fillings
- compensator
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Sealing Devices (AREA)
Abstract
Disclosed is a direct-embedded filling sleeve compensator which comprises an inner sleeve, an outer sleeve, a sealing end ring, a looseness proof ring, a guiding belt, seal fillings and a connecting pipe. The utility model is characterized in that a looseness proof should is arranged on the inner end of the inner sleeve which is extended to the outer sleeve; the seal fillings are arranged in the cavity constructed by the inner sleeve, the outer sleeve, the sealing end ring and the looseness proof ring; flexible graphite sealants are filled in the seal fillings; the flexible graphite sealants are combined with the seal fillings to construct the sealing mechanism of the compensator. The utility model has the advantages that the filling port is not arranged; the seal fillings and the sealants are pressed into the utility model during the initial assembly process so that the compensation capability is great and no elastic force is generated; the filling sealants have good thermal expansion performance and the sealing is reliable; the operation maintenance cost is low; the safety and convenience of the application are improved; the cost is low and the service life is prolonged.
Description
Technical field
The utility model relates to a kind of sleeve expansion joint, but particularly a kind of direct-burried, and the direct-buried filling sleeve compensator of stuffing box packing Maintenance free is particularly useful for direct buried pipe network.
Background technique
The directly buried installation of the most of employing of heating network now, when the hot water temperature has surpassed Celsius 120 when spending, steam pipe system or hot water pipe net must adopt compensation directly buried installation mode, and the thermal compensation wide range of problem that solves the direct-burried pipe network adopts FlexbleJoint and filling sleeve compensator.The FlexbleJoint anti-chlorine ion corrosion is poor, and compensation ability is little, has problems such as elastic force.Conventional filling sleeve compensator is owing to frequent to-and-fro motion, and stuffing box packing is run off through regular meeting, needs often to fill out mouth from a plurality of uniform notes and injects filler.Safety in operation reduces greatly, and maintenance cost is very high.Because notes are filled out mouth need be easy to maintenance, can not reach direct-burried and use.And common packing-type filler sleeve expansion joint along with the increase packing wearing and tearing of number of run, reduces the Seal cage sealing load, and compensator causes leakage.
The model utility content
The purpose of this utility model provides a kind of direct-buried filling sleeve compensator, need not be provided with to annotate to fill out mouth, and stuffing box packing and sealing compound are to be pressed in the initial loading timing, compensation ability is big, nonelastic power annotates that to fill out the sealing compound thermal expansion properties good, and sealing is reliable, operation expense is low, notes are filled out agent and be need not to mend and fill out, and improve the Security of using, convenience, cost is low, increases the service life.
The purpose of this utility model is achieved by the following technical solution: it comprises inner sleeve, outer sleeve, sealing end ring, anti-avulsion ring, guidance tape, stuffing box packing and adapter, it is characterized in that: the inner that inner sleeve extend in the outer sleeve is provided with the anticreep shoulder, in the cavity that inner sleeve, outer sleeve, sealing end ring and anti-avulsion ring are formed, install stuffing box packing, between stuffing box packing, annotate and fill out band pressure Expanded graphite sealing compound, the sealing mechanism of the combined formation compensator of Expanded graphite sealing compound and stuffing box packing.
Above-mentioned stuffing box packing is that installing teflon seal filler constitutes between the graphite grazing packing.
The utility model has the advantages that: need not be provided with to annotate and fill out mouth, stuffing box packing and sealing compound are to be pressed in the initial loading timing, and compensation ability is big, nonelastic power, it is good that notes are filled out the sealing compound thermal expansion properties, sealing is reliable, and operation expense is low, annotates to fill out agent and need not to mend and fill out, improve the Security of using, convenience, cost is low, increases the service life.
Working principle: the utility model be by interior cover along the relative sliding motion of conduit axis direction, the hot elongation of extraction duct and cold conditions shorten, and discharge the pipeline thermal stress.Adopt to annotate and to fill out Expanded graphite sealing compound and teflon seal filler, the combined formation sealing mechanism of graphite grazing packing.Realizing slipper seal under the sealing load stably between the overcoat in making.Sealing compound is in closely packing into by pressure when product assembles between the cavity between cover and the overcoat, and the initial assembling pressure of sealing compound is greater than 3 times of compensator interior media working pressure.Because this sealing compound is a compressive state under initial assembling pressure, after work a period of time, it self can along with the variation in pressure of hyperbaric chamber from volumetric expansion, reached the state of compression seal at any time.Characteristics such as it is strong that the graphite grazing packing has sealing, and corrosion resistance is strong, but 600 ℃ of heatproofs.Polytetrafluoroethylene fiber weaving stuffing box packing have very high wear resistance and higher mechanical strength and self-lubricating property very good, friction factor is little, moment of torsion is little.Rely on guidance tape to realize the high-axiality of inside and outside cover relative movement, prevent cover in the scratch plating, make the sealing of pipeline under running state more reliable, durable.
Description of drawings
Fig. 1 is the utility model structural representation.
Embodiment
See Fig. 1, the utility model concrete structure is as follows: inner sleeve 1 extend in the outer sleeve 9, and its inner is provided with anticreep shoulder, can prevent that pipeline inner sleeve 1 when shrinkage from pulling out.Its intensity can satisfy the interior pressure thrust of pipeline, both can cancel the fixed bearing of pipeline.Form a cavity between inner sleeve 1, outer sleeve 9, sealing end ring 3 and the anti-avulsion ring 8, installing graphite grazing packing 5 in cavity, installing teflon seal filler 6 is annotated the black flexible sealing agent 7 of rockfilling between the teflon seal filler 6 between graphite grazing packing 5.Graphite flexible sealing agent 7 constitutes sealing mechanism with teflon seal filler 6, graphite grazing packing 5.
The order of fitting tight mechanism is: the cavity underpart between inner sleeve of holding up 1 and outer sleeve 9 is by anti-avulsion ring 8 back covers.Graphite flexible sealing agent 7 is squeezed in the 8 top filled polytetrafluoroethylene stuffing box packing 5 and graphite grazing packing 6 of anti-avulsion ring in the cavity center portion, seal up with graphite grazing packing 6 and tetrafluoroethylene stuffing box packing on top again.Be pressed into filler until locking with lock sealing end ring 3, locking can be adopted the mode of screw thread precession, also can adopt pressure to be pressed into the fixing mode of back welding.Lock sealing end ring 3 is provided with dust ring 2 one, has foreign material to drop on the work of inner sleeve surface restriction compensator in the time of can preventing work.Take over outer sleeve 9 and weld together.All assembling guide sleeve between sealing end ring 3 and inner sleeve 1 outer wall and between anti-avulsion ring 8 and inner sleeve 1 outer wall.This notes are filled out type, and not have the compensator compensates ability of annotating filling perforation big, and excellent corrosion can reduce engineering cost again.
Claims (2)
1. direct-buried filling sleeve compensator, it comprises inner sleeve, outer sleeve, sealing end ring, anti-avulsion ring, guidance tape, stuffing box packing and adapter, it is characterized in that: the inner that inner sleeve extend in the outer sleeve is provided with the anticreep shoulder, in the cavity that inner sleeve, outer sleeve, sealing end ring and anti-avulsion ring are formed, install stuffing box packing, between stuffing box packing, annotate and fill out band pressure Expanded graphite sealing compound, the sealing mechanism of the combined formation compensator of Expanded graphite sealing compound and stuffing box packing.
2. direct-buried filling sleeve compensator according to claim 1 is characterized in that: stuffing box packing is that installing teflon seal filler constitutes between the graphite grazing packing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200136420U CN201090872Y (en) | 2007-08-02 | 2007-08-02 | Direct-buried pouring and filling sleeve compensator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200136420U CN201090872Y (en) | 2007-08-02 | 2007-08-02 | Direct-buried pouring and filling sleeve compensator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201090872Y true CN201090872Y (en) | 2008-07-23 |
Family
ID=39862632
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200136420U Expired - Fee Related CN201090872Y (en) | 2007-08-02 | 2007-08-02 | Direct-buried pouring and filling sleeve compensator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201090872Y (en) |
-
2007
- 2007-08-02 CN CNU2007200136420U patent/CN201090872Y/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101105253A (en) | Direct-buried filling sleeve compensator | |
| CN209444958U (en) | A kind of whirl compensator sealing structure with the level on outer tube inner convex platform | |
| CN201090872Y (en) | Direct-buried pouring and filling sleeve compensator | |
| CN1877184A (en) | Universal expansion joint for oil seal pipeline | |
| CN203718251U (en) | Maintenance-free rotating compensator with guiding ring | |
| CN203023718U (en) | Direct-current three-dimensional spherical compensator with uniform internal diameter | |
| CN2236064Y (en) | Corrugated-pipe sleeve combined compensator | |
| CN102338256B (en) | Novel non-metal compensator for pipeline | |
| CN201636331U (en) | Combined cooling type padding component | |
| CN2530126Y (en) | Two-way extension filling pipeline compensator | |
| CN103062544A (en) | Uniform-inner-diameter direct current three-dimensional spherical compensator | |
| CN213871663U (en) | High-temperature high-pressure sleeve type compensator | |
| CN206988639U (en) | Non-maintaining super reinforcement level reciprocating hermetic sleeve expansion joint | |
| CN212361161U (en) | End face sealing structure for rotary compensator and rotary compensator | |
| CN109854853A (en) | A kind of low friction pressure self-tightening whirl compensator | |
| CN201330901Y (en) | Double-seal sleeve expansion device | |
| CN212509955U (en) | End face sealing structure of rotary compensator and rotary compensator | |
| CN2872045Y (en) | Self-sealed compensator of straight-embedded socket | |
| CN101571221B (en) | Composite closed type sleeve compensator for steam | |
| CN201014102Y (en) | Filling-type rotating compensator | |
| CN203223679U (en) | Simple sleeve expansion joint | |
| CN210920521U (en) | Sealed heat-preservation direct-buried sleeve compensator | |
| CN102466102B (en) | Corrosion-resistant rotary displacement adjuster for pipelines | |
| CN207569422U (en) | A kind of Double End compound seal earthenware duct telescopic joint | |
| CN216009965U (en) | Prefabricated heat preservation sealing sleeve compensator |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080723 |