CN205824465U - High flexibility anti-accumulated powder straight-pipe pressure balanced expansion joint - Google Patents

High flexibility anti-accumulated powder straight-pipe pressure balanced expansion joint Download PDF

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Publication number
CN205824465U
CN205824465U CN201620671572.7U CN201620671572U CN205824465U CN 205824465 U CN205824465 U CN 205824465U CN 201620671572 U CN201620671572 U CN 201620671572U CN 205824465 U CN205824465 U CN 205824465U
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China
Prior art keywords
corrugated tube
adapter
work
expansion joint
flange
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CN201620671572.7U
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Chinese (zh)
Inventor
周命生
李祥
牛玉华
李亮
刘化斌
王正奎
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NANJING CHENGUANG DONGLUO BELLOW CO Ltd
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NANJING CHENGUANG DONGLUO BELLOW CO Ltd
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Abstract

The utility model discloses a kind of high flexibility anti-accumulated powder straight-pipe pressure balanced expansion joint, including internal adapter, internal adapter arrival end is provided with inlet flange, and the port of export is provided with outlet(discharge) flange;The first work corrugated tube, balance corrugated tube and the second work corrugated tube it is set with successively outside the adapter of inside, first work corrugated tube is respectively arranged at two ends with the first adapter and the second adapter, second work corrugated tube one end connection outlet flange, the other end is provided with the 3rd adapter, first adapter is provided with blow device, also includes for preventing the first work corrugated tube, balance corrugated tube and the anti-unstability mechanism of the second work corrugated tube unstability.This utility model utilizes corrugated tube to raise structure upstream and sets blow device and add downstream and smooth the anti-accumulated powder Wear-proof structure of reducing adapter, thick-walled takeover and reach directly as the high-wearing feature of inside lining sleeve that expansion joint is wear-resisting undermines the performance indications such as anti-accumulated powder, it is to avoid inside lining sleeve comes off because solid state medium washes away and to jeopardize the safety of tubing properly functioning.

Description

High flexibility anti-accumulated powder straight-pipe pressure balanced expansion joint
Technical field
This utility model relates to a kind of coal liquifaction indirect liquefaction process pipe system in New Coal Chemical industry High flexibility anti-accumulated powder straight-pipe pressure balanced expansion joint.
Background technology
Coal liquifaction indirect liquefaction process pipe system in New Coal Chemical industry is all that high trestle is arranged at present, fixing Frame requires that stress is the least, it is therefore desirable to selects straight-pipe pressure balanced expansion joint, and requires that expansion joint entirety axial rigidity is little, Flexible.Simultaneously as containing solid-state coal dust in medium, it is desirable to expansion joint is overall wear-resistant and prevents coal dust in corrugated tube inner product Poly-.
Conventional straight pipe with small diameter pressure balance expanding joint, its structure as shown in Figure 1: balance ripple pipe is used for balancing intrinsic pressure Power and the pressure thrust of two work corrugated tubes;Also include inside lining sleeve.
Straight-pipe pressure balanced expansion joint shown in Fig. 1, first can not meet the requirement of Low rigidity, high flexibility.Because ripple Tube wave number can not be too much, and otherwise corrugated tube easily produces Pole-shape unstability;Two is to meet anti abrasive requirement.Due to inside lining sleeve Diameter is less than adapter internal diameter, containing dust medium, inside lining sleeve generation is washed away, is denuded, and then causes inside lining sleeve to come off;Three is containing powder Dust in dirt medium is easily deposited between inside lining sleeve and corrugated tube, and corrugated tube may be caused for a long time to lose flexibility.
Utility model content
Goal of the invention: in order to overcome the deficiencies in the prior art, this utility model provides a kind of anti-accumulated powder of high flexibility Straight-pipe pressure balanced expansion joint.
Technical scheme: for solving above-mentioned technical problem, a kind of high flexibility anti-accumulated powder straight pipe pressure-equalizing of the present utility model Expansion joint, including internal adapter, internal adapter is connected with inlet flange;The first operating wave it is set with successively outside the adapter of inside Stricture of vagina pipe, balance corrugated tube and the second work corrugated tube, the first work corrugated tube is respectively arranged at two ends with the first adapter and the second adapter, Second work corrugated tube one end connection outlet flange, the other end is provided with the 3rd adapter, is provided with blow device, also in the first adapter Including for preventing the first work corrugated tube, balance corrugated tube and the anti-unstability mechanism of the second work corrugated tube unstability.
Wherein, blow device includes being located in the first adapter multiple and the first work corrugated tube, balance corrugated tube and the The arm of two work bellows interior connections, each arm connects outside nitrogen pipeline.
Wherein, between the second work corrugated tube and outlet(discharge) flange, is provided with Concentric Reducers, the big end of Concentric Reducers and the Two work corrugated tubes connect, and the small end of Concentric Reducers is connected with outlet(discharge) flange.
Wherein, anti-unstability mechanism includes the ring flat-plate being respectively arranged in the second adapter and the 3rd adapter, the ring in the second adapter Between ring flat-plate and outlet(discharge) flange between plate and inlet flange, in the 3rd adapter, circumference staggers and is laid with many stabiliser bars.
Wherein, first work corrugated tube, balance corrugated tube and second work corrugated tube on be respectively provided with support each The ring flat-plate of stabiliser bar, each stabiliser bar is connected with ring flat-plate by retainer ring respectively.
Beneficial effect: a kind of high flexibility anti-accumulated powder straight-pipe pressure balanced expansion joint of the present utility model, has following useful Effect:
(1) utilize the anti-unstability structure of stabiliser bar+retainer ring, prevent corrugated tube because of wave number too much unstability and then satisfied The high flexibility of expansion joint, Low rigidity and long life requirement.
(2) utilize corrugated tube raise structure upstream set blow device add downstream smooth reducing adapter anti-accumulated powder Wear-proof knot Structure, thick-walled takeover reach directly as the high-wearing feature of inside lining sleeve that expansion joint is wear-resisting undermines the performance indications such as anti-accumulated powder, it is to avoid interior Lining comes off because solid state medium washes away and to jeopardize the safety of tubing properly functioning.
Accompanying drawing explanation
Fig. 1 is prior art construction schematic diagram;
Fig. 2 is this utility model structural representation.
Detailed description of the invention
Below in conjunction with the accompanying drawings this utility model is further described.
Such as Fig. 2 a kind of high flexibility anti-accumulated powder straight-pipe pressure balanced expansion joint as depicted, including internal adapter 9, inside Adapter 9 arrival end connects inlet flange 15, is set with the first work corrugated tube 1, balance corrugated tube outside inside adapter 9 successively 2 and second work corrugated tube 10, first work corrugated tube two ends connect the first adapter 4 and the second adapter 3, the second operating wave respectively Stricture of vagina pipe 10 one end connection outlet flange 12, the other end is provided with the 3rd adapter 13, arranges blow device 11 in the first adapter 4, Also include for preventing the first work corrugated tube 1, balance corrugated tube 2 and the anti-unstability mechanism of the second work corrugated tube 10 unstability. Blow device includes multiple and the first work corrugated tube 1, balance corrugated tube 2 and the second operating wave being arranged in the first adapter 4 The arm 16 of the internal connection of stricture of vagina pipe 10, each arm 16 connects outside nitrogen pipeline.Second work corrugated tube 10 and outlet(discharge) flange Arranging Concentric Reducers 5 between 12, the big end of Concentric Reducers 5 corrugated tube 10 that works with second is connected, Concentric Reducers 5 little End is connected with outlet(discharge) flange 12.Anti-unstability mechanism includes the ring flat-plate being separately positioned in the second adapter 3 and the 3rd adapter 13, second Many it are respectively provided with surely between ring flat-plate and outlet(discharge) flange 12 between ring flat-plate and inlet flange 15 in adapter 3, in the 3rd adapter 13 Fixed pole 8.It is respectively arranged to support each on first work corrugated tube 1, balance corrugated tube 2 and the second work corrugated tube 10 stable The ring flat-plate 6 of bar 8, each stabiliser bar 8 is connected with ring flat-plate 6 by retainer ring 7 respectively.
Internal adapter 9 is welded to connect with inlet flange 15, and it is used as inside lining sleeve simultaneously, meets anti-accumulated powder and wear-resisting performance Index;Blow device 11 is welded to connect by multiple arms and the first adapter 4, outside nitrogen is accessed the first adapter 4 internal, anti- Only expansion joint inner chamber accumulated powder;Concentric Reducers 5 is held greatly and is welded to connect with the second work corrugated tube 10, and small end welds with outlet(discharge) flange 12 Connecing in succession, Concentric Reducers 5 smooths reducing, effectively slows down washing away of solid state medium;Ring flat-plate 6, retainer ring 7 are plus stabiliser bar 8 Improve the stability of corrugated tube, prevent from occurring because wave number Pole-shape unstability more.
The above is only preferred implementation of the present utility model, it should be pointed out that: for the common skill of the art For art personnel, on the premise of without departing from this utility model principle, it is also possible to make some improvements and modifications, these improve and Retouching also should be regarded as protection domain of the present utility model.

Claims (5)

1. a high flexibility anti-accumulated powder straight-pipe pressure balanced expansion joint, it is characterised in that: include internal adapter (9), internal adapter (9) it is connected with inlet flange (15);The first work corrugated tube (1), balance corrugated tube it is set with successively in outside, inside adapter (9) And the second work corrugated tube (10) (2), the first work corrugated tube is respectively arranged at two ends with the first adapter (4) and second and takes over (3), the Two work corrugated tube (10) one end connection outlet flange (12), the other end is provided with the 3rd adapter (13), sets in the first adapter (4) There is blow device (11), also include for preventing the first work corrugated tube (1), balance corrugated tube (2) and the second work corrugated tube (10) the anti-unstability mechanism of unstability.
High flexibility the most according to claim 1 anti-accumulated powder straight-pipe pressure balanced expansion joint, it is characterised in that: wherein, purging Device includes multiple and the first work corrugated tube (1), balance corrugated tube (2) and the second operating wave being located in the first adapter (4) The arm (16) of the internal connection of stricture of vagina pipe (10), each arm (16) connects outside nitrogen pipeline.
High flexibility the most according to claim 1 and 2 anti-accumulated powder straight-pipe pressure balanced expansion joint, it is characterised in that: wherein, the Being provided with Concentric Reducers (5) between two work corrugated tube (10) and outlet(discharge) flange (12), the big end of Concentric Reducers (5) is with second Work corrugated tube (10) connects, and the small end of Concentric Reducers (5) is connected with outlet(discharge) flange (12).
High flexibility the most according to claim 1 anti-accumulated powder straight-pipe pressure balanced expansion joint, it is characterised in that: wherein, anti-mistake Steady mechanism includes the ring flat-plate being respectively arranged in the second adapter (3) and the 3rd adapter (13), the ring flat-plate in the second adapter (3) and entrance Between ring flat-plate and outlet(discharge) flange (12) between flange (15), in the 3rd adapter (13), circumference staggers and is laid with many stabiliser bars (8)。
High flexibility the most according to claim 4 anti-accumulated powder straight-pipe pressure balanced expansion joint, it is characterised in that: wherein, first It is respectively provided with each stabiliser bar of support in work corrugated tube (1), balance corrugated tube (2) and the second work corrugated tube (10) (8) ring flat-plate (6), each stabiliser bar (8) is connected with ring flat-plate (6) by retainer ring (7) respectively.
CN201620671572.7U 2016-06-29 2016-06-29 High flexibility anti-accumulated powder straight-pipe pressure balanced expansion joint Active CN205824465U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201620671572.7U CN205824465U (en) 2016-06-29 2016-06-29 High flexibility anti-accumulated powder straight-pipe pressure balanced expansion joint

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201620671572.7U CN205824465U (en) 2016-06-29 2016-06-29 High flexibility anti-accumulated powder straight-pipe pressure balanced expansion joint

Publications (1)

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CN205824465U true CN205824465U (en) 2016-12-21

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CN201620671572.7U Active CN205824465U (en) 2016-06-29 2016-06-29 High flexibility anti-accumulated powder straight-pipe pressure balanced expansion joint

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109812639A (en) * 2019-03-21 2019-05-28 贵州赤天化纸业股份有限公司 A kind of anti-expansion joint wear structure

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109812639A (en) * 2019-03-21 2019-05-28 贵州赤天化纸业股份有限公司 A kind of anti-expansion joint wear structure
CN109812639B (en) * 2019-03-21 2024-03-08 泰盛(贵州)竹资源发展有限公司 Expansion joint wear prevention structure

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