CN205560098U - Straight tube pressure balance type ripple expansion joint - Google Patents
Straight tube pressure balance type ripple expansion joint Download PDFInfo
- Publication number
- CN205560098U CN205560098U CN201620279421.7U CN201620279421U CN205560098U CN 205560098 U CN205560098 U CN 205560098U CN 201620279421 U CN201620279421 U CN 201620279421U CN 205560098 U CN205560098 U CN 205560098U
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- China
- Prior art keywords
- support plate
- siphunculus
- bellows
- extension board
- tube pressure
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Abstract
The utility model relates to a straight tube pressure balance type ripple expansion joint, its characterized in that: it includes one set of first extension board of putting on first siphunculus and being connected with first siphunculus, and two third extension board and the 5th extension boards of being connected with the second siphunculus are put to the spacer sleeve on the second siphunculus, go back on the second siphunculus spacer sleeve put two and the second siphunculus stay gapped second extension board and fourth extension board, a second bellows is connected to a fastening connection first bellows between first extension board and second extension board between third extension board and fourth extension board, connect a third bellows between second extension board and fourth extension board, the 3rd bellows jecket put the second bellows outside and with the inside airtight space that feeds through that forms of first bellows, plant on first extension board at least four run through the second extension board and with the first pull rod of fourth extension board fastening connection, plant on the second extension board at least four with the second pull rod of the 5th extension board fastening connection. The utility model discloses the axial of siphunculus can be absorbed simultaneously and the displacement is transversely made up to can restrict the displacement size of siphunculus.
Description
Technical field
The utility model relates to a kind of expansion bellow, especially with regard to a kind of straight-tube pressure-balance expansion bellow.
Background technology
The straight pipe pressure-balancing type expansion joint used in coal gasification apparatus is mainly used on the key position of device, and the most once expansion joint lost efficacy, and whole device must stop and keep in repair, and production can be caused strong influence and the wasting of resources by this.So expansion joint requires compact conformation, greatly and internal diameter of the pipeline must not have projection to absorb displacement.But the form that existing straight pipe pressure-balancing type expansion joint is connected in series owing to using multiple bellowss, thus results in straight pipe pressure-balancing type expansion joint size and weight is relatively big, and structure is the compactest, is unfavorable for the performance of expansion joint performance.Simultaneously; owing to expansion joint there being high-temperature medium circulate; such as pulverized coal particle etc.; therefore it is required that inner-walls of duct must can not accumulate pulverized coal particle between wear-resisting and ripple; but existing straight pipe pressure-balancing type expansion joint is unreasonable owing to lacking blow device or blow device Position Design; therefore pulverized coal particle thoroughly can not be purged, and inner-walls of duct accumulates pulverized coal particle for a long time and can aggravate inner-walls of duct abrasion, makes expansion joint the appearance of the serious problems such as leakage occur.
Summary of the invention
For the problems referred to above, the purpose of this utility model is to provide a kind of compact conformation, pulverized coal particle purges straight-tube pressure-balance expansion bellow thoroughly.
For achieving the above object, the utility model takes techniques below scheme: a kind of straight-tube pressure-balance expansion bellow, it is arranged on interval layout and the first siphunculus being positioned on same axis and the second siphunculus, it is characterized in that: it includes the first support plate being nested with on described first siphunculus and being fastenedly connected with described first siphunculus, on described second siphunculus, interval is nested with two the 3rd support plate being fastenedly connected with described second siphunculus and the 5th support plates, on described second siphunculus also interval be nested with two and described second siphunculus leave the second support plate and the 4th support plate in gap；One first bellows it is fastenedly connected between described first support plate and described second support plate, it is fastenedly connected one second bellows between described 3rd support plate and described 4th support plate, being fastenedly connected one the 3rd bellows between described second support plate and described 4th support plate, described 3rd bellows is nested with outside at described second bellows and is internally formed, with described first bellows, the confined space connected；Described first support plate is connected with described 4th support plate by least four first pull bars, and described second support plate is connected with described 5th support plate by least four second pull bars.
Also including that a blow device, described blow device have a scavenging conduit, described scavenging conduit runs through described 5th support plate and connects with described 3rd bellows interior after described 4th support plate.
Described 4th support plate and described 5th support plate use rectangle ring flat-plate, and described 4th support plate and described 5th support plate are staggered layout.
It is provided with nuts and washers at the two ends of described first pull bar and described second pull bar.
Described packing ring uses the taper faced washer and spheric washer cooperated.
The utility model is owing to taking above technical scheme, it has the advantage that 1, the first bellows of the present utility model is owing to connecting with the 3rd bellows, second bellows is due in parallel with the 3rd bellows, and it is provided with the many pull bars bearing pulling force and pressure, therefore can reach the balance of bellows blind flange force, the most in parallel second and the 3rd bellows make more compact structure.2, the utility model can absorb the axially and also laterally combination displacement of siphunculus simultaneously, and can limit the displacement size of siphunculus.3, the utility model is owing to being provided with blow device, therefore can purge the pulverized coal particle entered in the first bellows and the 3rd bellows interior connected space, prevents pulverized coal particle from inner tubal wall is produced abrasion and washes away, extends the service life of this device.The utility model can be widely applied to there is pipeline the conveying of the media such as the solid particle that washes away.
Accompanying drawing explanation
Fig. 1 is overall structure schematic diagram of the present utility model；
Fig. 2 is the side-looking structural representation of Fig. 1.
Detailed description of the invention
With embodiment, the utility model is described in detail below in conjunction with the accompanying drawings.
As it is shown in figure 1, the utility model includes siphunculus 1 and siphunculus 2, siphunculus 1 and siphunculus 2 interval arrange on the same axis and two mouths of pipe relative.Siphunculus 1 is nested with and the support plate 3 that be fastenedly connected vertical with tube wall.On siphunculus 2, spacer sleeve is equipped with support plate 4, support plate 5, support plate 6 and a support plate 7.Wherein, support plate 5 and support plate 7 are connected with the tube wall perpendicular fastener of siphunculus 2, and support plate 4 and support plate 6 leave gap with the tube wall of siphunculus 2, are used for making support plate 4 and the support plate 6 can relative movement when stress.Being nested with one first bellows 8 at siphunculus 2 near one end of siphunculus 1, one end of the first bellows 8 is fastenedly connected with support plate 3, and the other end is fastenedly connected with support plate 4.Being nested with one second bellows 9 at siphunculus 2 away from one end of siphunculus 1, one end of the second bellows 9 is fastenedly connected with support plate 5, and the other end is fastenedly connected with support plate 6.One the 3rd bellows 10 it is nested with outside the second bellows 9, one end of 3rd bellows 10 is fastenedly connected with support plate 4, the other end is fastenedly connected with support plate 6, make the first bellows 8 form, with the inner tubal wall of the 3rd bellows 10 and the outer tube wall of the second bellows 9, the confined space connected, be used for making pulverized coal particle to pass through.Support plate 3 is connected with support plate 6 by four pull bars being equidistantly spaced from 11, support plate 4 is connected with support plate 7 by four pull bars being equidistantly spaced from 12, pull bar 11 and pull bar 12 are for transmitting the pressure thrust that bellows 8,9,10 produces, to reach to balance the pressure thrust that bellows produces.
In above-described embodiment, the utility model also includes a blow device 13, and blow device 13 has a scavenging conduit 14, and scavenging conduit 14 connects the space between the second bellows 9 and the 3rd bellows 10 after running through support plate 7, support plate 6.Blow device 13 enters into the first bellows 8 and the pulverized coal particle of the internal connected space of the 3rd bellows 10 for purging, prevents pulverized coal particle from the inner tubal wall of the first bellows 8 and the 3rd bellows 10 is produced abrasion and being washed away.
In above-described embodiment; the caliber of siphunculus 1 and siphunculus 2 is equal; play the effect of connector and pressure part; and guide shell can be served as well; less owing to being spaced between siphunculus 1 and siphunculus 2; therefore, it is possible to the medium (pulverized coal particle) being effectively prevented flowing directly contacts with the first bellows 8,9,10, so being especially suitable for the medium pipeline of solid granule or dust-like.
In above-described embodiment, as in figure 2 it is shown, support plate 6 and support plate 7 can use rectangle ring flat-plate, and support plate 6 and support plate 7 are staggered layouts, it is to avoid the pull bar 11 planted on pull bar support plate 6 contacts with support plate 7 and produces interference.
In above-described embodiment, being provided with nut 16 and packing ring 15 at the two ends of pull bar 11 and pull bar 12, packing ring 15 can use the taper faced washer and spheric washer cooperated.Nut 16 is for absorbing pull bar 11 and the thrust of pull bar 12 generation or pressure, the pull bar 11 when packing ring 15 is for absorbing lateral displacement and the displacement of pull bar 12.
Operationally, when connected pipeline is by high-temperature medium, pipeline can be by thermal stretching, now the first bellows 8 forced compression for the utility model, the second bellows 9 and the elongation of the 3rd bellows 10 tension equivalent, in order to absorb the axial displacement of the pipeline that is connected.Meanwhile, work the first bellows 8 and the 3rd bellows 10 can the lateral displacement of extraction duct, and the pressure thrust that the first bellows 8,9,10 produces is balanced by pull bar 11 and pull bar 12 and the component that is connected.Wherein, owing to the scavenging conduit 14 of blow device 13 is fastenedly connected through support plate 7 with support plate 6, therefore when support plate 6 is subjected to displacement, scavenging conduit 14 can slide in support plate 7, it is to avoid produces and interferes.
The various embodiments described above are merely to illustrate the utility model; the structure of the most each parts, connection square etc. all can be varied from; every equivalents carried out on the basis of technical solutions of the utility model and improvement, the most should not get rid of outside protection domain of the present utility model.
Claims (6)
1. a straight-tube pressure-balance expansion bellow, be arranged at interval arrange and be positioned on same axis the
On one siphunculus and the second siphunculus, it is characterised in that: it includes being nested with on described first siphunculus and with described first
The first support plate that siphunculus is fastenedly connected, on described second siphunculus, interval is nested with two with described second siphunculus fastening even
The 3rd support plate connect and the 5th support plate, on described second siphunculus, also interval is nested with two and leaves with described second siphunculus
Second support plate in gap and the 4th support plate；One it is fastenedly connected between described first support plate and described second support plate
One bellows, is fastenedly connected one second bellows, described between described 3rd support plate and described 4th support plate
Being fastenedly connected one the 3rd bellows between second support plate and described 4th support plate, described 3rd bellows is nested with in institute
State the second bellows outside and be internally formed, with described first bellows, the confined space connected；Described first support plate
Being connected with described 4th support plate by least four first pull bars, described second support plate passes through at least four second
Pull bar is connected with described 5th support plate.
2. straight-tube pressure-balance expansion bellow as claimed in claim 1, it is characterised in that: also include one
Blow device, described blow device has a scavenging conduit, and described scavenging conduit runs through described 5th support plate and described
Connect with described 3rd bellows interior after four support plates.
3. straight-tube pressure-balance expansion bellow as claimed in claim 1, it is characterised in that: the described 4th
Support plate and described 5th support plate use rectangle ring flat-plate, and described 4th support plate and described 5th support plate are staggered layout.
4. straight-tube pressure-balance expansion bellow as claimed in claim 2, it is characterised in that: the described 4th
Support plate and described 5th support plate use rectangle ring flat-plate, and described 4th support plate and described 5th support plate are staggered layout.
Straight-tube pressure-balance expansion bellow the most as claimed in claim 1 or 2 or 3 or 4, its feature exists
In: it is provided with nuts and washers at the two ends of described first pull bar and described second pull bar.
6. straight-tube pressure-balance expansion bellow as claimed in claim 5, it is characterised in that: described packing ring
Use the taper faced washer and spheric washer cooperated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620279421.7U CN205560098U (en) | 2016-04-06 | 2016-04-06 | Straight tube pressure balance type ripple expansion joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620279421.7U CN205560098U (en) | 2016-04-06 | 2016-04-06 | Straight tube pressure balance type ripple expansion joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205560098U true CN205560098U (en) | 2016-09-07 |
Family
ID=56812889
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620279421.7U Withdrawn - After Issue CN205560098U (en) | 2016-04-06 | 2016-04-06 | Straight tube pressure balance type ripple expansion joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205560098U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105650396A (en) * | 2016-04-06 | 2016-06-08 | 中科合成油工程股份有限公司 | Straight-tube pressure-balance type bellows expansion joint |
-
2016
- 2016-04-06 CN CN201620279421.7U patent/CN205560098U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105650396A (en) * | 2016-04-06 | 2016-06-08 | 中科合成油工程股份有限公司 | Straight-tube pressure-balance type bellows expansion joint |
| CN105650396B (en) * | 2016-04-06 | 2018-02-02 | 中科合成油工程股份有限公司 | A kind of straight-tube pressure-balance expansion bellow |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20160907 Effective date of abandoning: 20180202 |
|
| AV01 | Patent right actively abandoned |