CN209043100U - A kind of corrosion protection apparatus for open-frame type gasifier - Google Patents

A kind of corrosion protection apparatus for open-frame type gasifier Download PDF

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Publication number
CN209043100U
CN209043100U CN201821457530.9U CN201821457530U CN209043100U CN 209043100 U CN209043100 U CN 209043100U CN 201821457530 U CN201821457530 U CN 201821457530U CN 209043100 U CN209043100 U CN 209043100U
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China
Prior art keywords
shield
heat exchanger
weld seam
exchanger tube
open
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CN201821457530.9U
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Chinese (zh)
Inventor
李晟
张毅
李培跃
胡靖元
李晓华
申彭姗
张明辉
吕国锋
梅丽
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725th Research Institute of CSIC
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725th Research Institute of CSIC
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Abstract

A kind of corrosion protection apparatus for open-frame type gasifier, including the protective device ontology being coated on open-frame type gasifier weld seam, the protective device ontology includes the heat exchanger tube shield being set in heat exchange pipe outer wall, weld seam shield and the collector shield being sticked in collection pipe outer wall, weld seam shield is domes and is coated on the weld seam of open-frame type gasifier, heat exchanger tube shield, weld seam shield and collector shield are integral structure made of the nonmetallic materials of resistance to low temperature, at least two through-holes for running through heat exchanger tube shield side wall are provided on heat exchanger tube shield, band is equipped in through-hole, protective device ontology is fixed on heat exchanger tube by band.The utility model uses the process for un-metal material with resistance to low temperature to manufacture, and avoids the electrochemical corrosion between metal material;Structure design is simple, easy to process;Fixation is tied up using band, is easily installed, it can be achieved that being installed in the non-stop-machine situation of equipment.

Description

A kind of corrosion protection apparatus for open-frame type gasifier
Technical field
The utility model relates to a kind of devices for preventing equipment from being corroded by seawater scouring, are used for open-shelf more particularly, to one kind The corrosion protection apparatus of formula gasifier.
Background technique
Natural gas (NG) is usually stored and is transported in the form of liquified natural gas (LNG:liquid natural gas), Open-frame type gasifier is generallyd use before being transported to application terminal use by LNG heating and gasifying to normal temperature state.Open-shelf gas When changing device work, seawater is flowed from above to below in the heat exchange pipe external surface of open-frame type gasifier by gravity, passes through seawater and LNG Heat convection realize LNG gasification, seawater to open-shelf gasifier device bulk material have biggish corrosivity, in order to mention The service life of high equipment, often in equipment surface anticorrosion with painting coating.In During Process of Long-term Operation gasifier surface covering by Seawater corrosion effect, which is gradually thinned, to fall off, especially the weld seam of heat exchanger tube and collector junction, by seawater scouring corrosion and chemistry The double action of corrosion, corrosion condition is especially prominent, occurs the corrosion of equipment matrix when serious, to the safety band of equipment itself Carry out certain hidden danger.
Through inquiring domestic and international patent, the method and apparatus that can not effectively solve the problems, such as this, only patent " a kind of transmission Device anticorrosion cover " (application number 201310541912.5) list it is a kind of transmission device is protected using shield, will be close Seal it is intracavitary vacuumize, so that transmission device is isolated from the outside world, play the role of etch-proof.But the invention is only with corrosive environment gas The case where being applicable in the case where atmosphere, not being suitable for seawater scouring corrosion.
Utility model content
The purpose of this utility model is the weldering to solve open-frame type gasifier heat exchanger tube and collector junction in the prior art Seam, by the double action of seawater scouring corrosion and chemical attack, corrosion condition is especially prominent, occurs the corruption of equipment matrix when serious The problem of losing, bringing certain hidden danger to the safety of equipment itself provides a kind of corrosion protection dress for open-frame type gasifier It sets.
The deficiency of the utility model to solve above-mentioned technical problem, used technical solution is:
A kind of corrosion protection apparatus for open-frame type gasifier, including the protection being coated on open-frame type gasifier weld seam Device noumenon, the protective device ontology include the heat exchanger tube shield being set in heat exchange pipe outer wall, weld seam protection The collector shield for covering and being sticked in collection pipe outer wall, weld seam shield are domes and the weldering for being coated on open-frame type gasifier It sews on, heat exchanger tube shield is fixed on weld seam shield close to one end of the weld seam of posture gasifier, and collector protects cover outer wall It is also secured at weld seam shield close to one end of the weld seam of posture gasifier, heat exchanger tube shield, weld seam shield and collector are anti- Shield is integral structure made of the nonmetallic materials of resistance to low temperature, and at least two are provided on heat exchanger tube shield through changing The through-hole of heat pipe shield side wall is equipped with band in through-hole, protective device ontology is fixed on heat exchanger tube by band.
Annular groove is offered on the outer wall of the heat exchanger tube shield, through-hole runs through the heat exchanger tube positioned at annular groove bottom The side wall of shield.
The collector shield is arcuate structure.
The beneficial effects of the utility model are: the utility model uses the process for un-metal material system with resistance to low temperature It makes, avoids the electrochemical corrosion between metal material;Structure design is simple, easy to process;Fixation is tied up using band, is convenient for Installation in the non-stop-machine situation of equipment, it can be achieved that install.
Detailed description of the invention
Fig. 1 is the schematic perspective view of the utility model.
Fig. 2 is the front view of Fig. 1.
Fig. 3 is the sectional view of Fig. 1.
Fig. 4 is the mounting means of the utility model.
Diagram label: 1, heat exchanger tube shield, 2, annular groove, 3, through-hole, 4, weld seam shield, 5, collector shield, a, Heat exchanger tube, b, weld seam, c, collector, d, band, e, protective device ontology.
Specific embodiment
As shown in the figure, specific embodiment is as follows:
As shown in Figure 1-3, a kind of corrosion protection apparatus for open-frame type gasifier, including it is coated on open-frame type gasifier Protective device ontology e, the protective device ontology e on weld seam include that the heat exchanger tube being set in heat exchange pipe outer wall is anti- Shield 1, weld seam shield 4 and be sticked collection pipe outer wall on collector shield 5, heat exchanger tube shield 1 be cylindrical structure and Center begins with hole and is set on heat exchanger tube to be fitted closely with heat exchanger tube, and collector shield 5 uses arcuate structure, weld seam shield 4 is domes and are coated on the weld seam of open-frame type gasifier, heat exchanger tube shield 1 close to posture gasifier weld seam one End is fixed on weld seam shield 4, and collector protection cover outer wall, which is also secured at weld seam close to one end of the weld seam of posture gasifier, to be prevented Shield 4, heat exchanger tube shield 1, weld seam shield 4 and collector shield 5 are structure as a whole, are provided on heat exchanger tube shield 1 At least two run through the through-hole 3 of heat exchanger tube shield side wall, are equipped with band d in through-hole 3, by band d by protective device sheet Body is fixed on heat exchanger tube a, and an annular groove is offered on the outer wall of the heat exchanger tube shield, and through-hole, which runs through, is located at annular The side wall of the heat exchanger tube shield of trench bottom, and there are two through-hole settings.
As shown in figure 4, a kind of mounting means of the corrosion protection apparatus for open-frame type gasifier, by protective device ontology E is placed on collector c and the junction heat exchanger tube a, and weld seam b is completely covered, and band d is wrapped on heat exchanger tube a after passing through from through-hole 3 and locks Fix protective device ontology e.
Technical solution cited by the utility model and embodiment and non-limiting, with skill cited by the utility model Art scheme and embodiment be equivalent or effect same approach is all in the range of the utility model is protected.

Claims (3)

1. a kind of corrosion protection apparatus for open-frame type gasifier, including the protection dress being coated on open-frame type gasifier weld seam Set ontology, it is characterised in that: the protective device ontology include one be set in heat exchange pipe outer wall on heat exchanger tube shield, Weld seam shield and the collector shield being sticked in collection pipe outer wall, weld seam shield are domes and are coated on open-shelf gas On the weld seam for changing device, heat exchanger tube shield is fixed on weld seam shield close to one end of the weld seam of posture gasifier, and collector is anti- Shield outer wall is also secured at weld seam shield, heat exchanger tube shield, weld seam shield close to one end of the weld seam of posture gasifier It is structure as a whole with collector shield, at least two is provided on heat exchanger tube shield through the logical of heat exchanger tube shield side wall Hole is equipped with band in through-hole, protective device ontology is fixed on heat exchanger tube by band.
2. a kind of corrosion protection apparatus for open-frame type gasifier according to claim 1, it is characterised in that: it is described Annular groove is offered on the outer wall of heat exchanger tube shield, through-hole runs through the side wall of the heat exchanger tube shield positioned at annular groove bottom.
3. a kind of corrosion protection apparatus for open-frame type gasifier according to claim 1, it is characterised in that: it is described Collector shield is arcuate structure.
CN201821457530.9U 2018-09-06 2018-09-06 A kind of corrosion protection apparatus for open-frame type gasifier Active CN209043100U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201821457530.9U CN209043100U (en) 2018-09-06 2018-09-06 A kind of corrosion protection apparatus for open-frame type gasifier

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201821457530.9U CN209043100U (en) 2018-09-06 2018-09-06 A kind of corrosion protection apparatus for open-frame type gasifier

Publications (1)

Publication Number Publication Date
CN209043100U true CN209043100U (en) 2019-06-28

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CN201821457530.9U Active CN209043100U (en) 2018-09-06 2018-09-06 A kind of corrosion protection apparatus for open-frame type gasifier

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112793949A (en) * 2021-01-29 2021-05-14 镇江远海包装有限公司 IBC ton bucket bottom plate of high strength corrosion-resistant type

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112793949A (en) * 2021-01-29 2021-05-14 镇江远海包装有限公司 IBC ton bucket bottom plate of high strength corrosion-resistant type

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