CN102794151B - A kind of diagonal-bracing type annular-pipe reactor - Google Patents
A kind of diagonal-bracing type annular-pipe reactor Download PDFInfo
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- CN102794151B CN102794151B CN201210340327.4A CN201210340327A CN102794151B CN 102794151 B CN102794151 B CN 102794151B CN 201210340327 A CN201210340327 A CN 201210340327A CN 102794151 B CN102794151 B CN 102794151B
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Abstract
A kind of diagonal-bracing type annular-pipe reactor, comprise the sleeve pipe of some, chuck communicating pipe, elbow and erection support, sleeve pipe includes inner and outer tubes, elbow and interior pipe are sequentially connected in series into the conveying of reaction mass and the connection runner of reaction, chuck communicating pipe be positioned at elbow to be connected with outer tube, described interior pipe and the chuck runner formed between described outer tube are connected into carry cooling medium be communicated with runner, wherein, described sleeve pipe includes upstanding sleeve and/or tilt sleeve; Described diagonal-bracing type annular-pipe reactor is combined mutually by upstanding sleeve and tilt sleeve; Or described diagonal-bracing type annular-pipe reactor is combined mutually by tilt sleeve.The sleeve pipe that the present invention overcomes traditional annular-pipe reactor can only be the technology prejudice of upstanding sleeve, adopt the technical scheme improved the contact area of installation foundation can be increased, thus increase the anti-ability of toppling over moment of flexure of sleeve pipe, also disperseed the load of whole annular-pipe reactor, this technology solves the strength and stability requirement of tall and slender structure simultaneously.
Description
Technical field
The present invention relates to petrochemical industry Special mechanical equipment engineering, particularly relate to a kind of diagonal-bracing type annular-pipe reactor.
Background technology
In prior art, polyolefin (as: polypropylene and polyethylene) is output and the maximum kind of consumption figure in general synthetic resin, and the common production technology of polyolefin includes three kinds: i.e. slurry process, vapor phase method and solwution method.So-called slurry process (Slurry Process) is also called slurry method or solvent process method, be in the world the earliest for the production of polyacrylic technology.Slurry process production technology is the main method of producing HDPE, this manufacturing technique method is: propylene or ethene are mixed with hydrocarbon solvent, and the polymer suspension produced is in solvent, and the industrial applications time of slurry method comparatively early, mature technology, and pressure in production process, temperature are lower.The consersion unit that slurry process adopts is according to reactor types, and the reactor that slurry process adopts can be divided into stirred-tank reactor and annular-pipe reactor two kinds.
In prior art, common annular-pipe reactor, include the sleeve pipe of some arranged according to production capacity size, and the chuck communicating pipe of correspondence, elbow, erection support, tie-beam etc., sleeve pipe includes inner and outer tubes, the end of elbow and the end of interior pipe are sequentially connected in series, be linked to be the connection runner of conveying for reaction mass and reaction, because polymerisation can produce heat, therefore between the inner and outer tubes of sleeve pipe, chuck runner is formed, the connection runner be connected into by chuck runner for carrying cooling medium is connected chuck communicating pipe with outer tube, by the coolant medium in chuck runner, reaction heat is taken away.The outer tube of sleeve pipe is provided with corrugated-type expansion joint, erection support and a beam seat, tie-beam is connected with a beam seat by bolt, and sleeve pipe is combined into a space framework.Because annular-pipe reactor is many foundation supports, namely every bar sleeve pipe is all provided with erection support supporting corresponding thereto, cause the length of sleeve pipe, axial location, orientation, absolute altitude, spacing equal error thus, and the sleeve pipe depth of parallelism, verticality of flange, elbow the factors such as foozle all to endless tube, sealing property can be installed simultaneously and have an impact; And annular-pipe reactor adopts low-temperature steel manufacture, all higher to manufacture, welding, heat treated requirement.Smooth and easy in order to make material flow in upstanding sleeve, inner tube wall must, through repeatedly polishing, being polished to close to the degree of minute surface, prevent reactant from gluing wall, produces implode.
Such as, the structure of the polyacrylic annular-pipe reactor of production of 300000 tons/year, as shown in Figure 1, include six each length are 50m, external diameter is φ 609.6 × 16 mm sleeve pipe R1, R2, R3, R4, R5, R6, the interior pipe of six elbow A1, A2, A3, B1, B2, B3 one_to_one corresponding and sleeve pipe successively series connection connects and forms one and circulate and overall be communicated with runner, and C1, C2, C3, C4, C5 were connected with outer tube chuck runner was connected into a connection runner successively five chuck communicating pipes; Cooling medium is entered by the cooling medium inflow entrance 2A of chuck runner, and the cooling medium flow export 2F to chuck runner flows out, and six erection supports D1, D2, D3, D4, D5, D6 are positioned at the bottom of each sleeve pipe R1, R2, R3, R4, R5, R6.Elbow B1, B2, B3 place, bottom of annular-pipe reactor is provided with axial-flow pump, reaction mass enters annular-pipe reactor by reaction mass inflow entrance 1A, under the driving of axial-flow pump, reaction mass stirs in sleeve pipe R1, R2, R3, R4, R5, R6, circulation, and under the effect of catalyst, after carrying out the polypropylene of reaction formation pulpous state, then released by reaction mass flow export 1B, then enter to granulating system; This annular-pipe reactor is seated on the high platform base of 11m, whole equipment heavily about 210 tons.Bottom endless tube, elbow is provided with axial-flow pump, and reaction mass enters annular-pipe reactor by 1A, stirs, circulates under the driving of axial-flow pump in pipe, and under the effect of catalyst, reaction forms pulpous state polypropylene, is released enter granulating system by 1B; Five chuck communicating pipes are had to be connected between chuck each other; With expansion joint, beam seat and bearing on chuck, between adjacent two chucks, H profile steel is connected, and forms 8 space platforms.
Along with the scarcity of petroleum resources, for adapting to market to the great demand of ethene PP Pipe Compound and development, new harsher requirement is all proposed to the structure of loop reactor apparatus, production capacity, quality, resource is made full use of to the refining of crude oil and chemical process improving day by day in-depth requirement, an equipment is wanted to switch the product producing the different trade mark, meanwhile, chemical enterprise is expected to be reduced costs by the scale effect of high production capacity, the market competitiveness of improving price.The production capacity of current domestic separate unit Loop Reactor for Polypropylene brings up to current 400,000 tons/year by 70,000 tons/year that within 1996, to domesticize first, along with the further expansion of the size of capacity, above-mentioned annular-pipe reactor of the prior art, because sleeve pipe adopts the elongated vertical structure of one, so when the length of sleeve pipe is more than 60m, following weak point will be there will be: its mounting means of sleeve pipe only has straight vertical vertical, 60m is increased above along with sleeve pipe height, the strength and stability of highrise steel structure under dynamic load effect is comparatively difficult to ensure card, if depend merely on the wall thickness of the sleeve pipe of increase to improve strength and stability, not only equipment investment cost increases, and the thermal resistance of heavy wall increases, heat exchanging effect has harmful effect, be unfavorable for energy-saving and emission-reduction.
Such as, Chinese invention patent application of the prior art (publication number is: CN101503483A) discloses one " pumping installations for slurry polymerization in annular-pipe reactor of improvement and method " on August 12nd, 2009, the sleeve pipe of wherein involved annular-pipe reactor is vertical segment, its less stable, resist the ability of toppling over moment of flexure also poor, the requirement meeting its strength and stability can not be applied in tall and slender structure.
Therefore, research and develop a kind of annular-pipe reactor that can be applicable to meet in tall and slender structure its strength and stability requirement, industrially and economically there is far-reaching and great meaning.
Summary of the invention
The object of the invention is to avoid weak point of the prior art and a kind of good stability is provided, anti-topples over the strong diagonal-bracing type annular-pipe reactor of moment of flexure ability.
Object of the present invention is achieved through the following technical solutions:
Provide a kind of diagonal-bracing type annular-pipe reactor, include the sleeve pipe of some, chuck communicating pipe, elbow and erection support, described sleeve pipe includes inner and outer tubes, described elbow and described interior pipe are sequentially connected in series into the conveying of reaction mass and the connection runner of reaction, described chuck communicating pipe be positioned at described elbow to be connected with described outer tube, described interior pipe and the chuck runner formed between described outer tube are connected into carry cooling medium be communicated with runner, wherein, described sleeve pipe includes upstanding sleeve and/or tilt sleeve; Described diagonal-bracing type annular-pipe reactor is combined mutually by upstanding sleeve and tilt sleeve; Or described diagonal-bracing type annular-pipe reactor is combined mutually by tilt sleeve.
Wherein, described tilt sleeve and the inclination established angle β vertically between center line are set to 2 ° ~ 10 °.
Wherein, described tilt sleeve and the inclination established angle β vertically between center line are set to 2 °.
Wherein, described tilt sleeve includes epimere cylindrical shell, stage casing cylindrical shell and hypomere cylindrical shell, have at least one section of cylindrical shell to be inclination cylindrical shell in described epimere cylindrical shell, stage casing cylindrical shell and hypomere cylindrical shell, and described inclination cylindrical shell and the inclination established angle β vertically between center line are set to 2 ° ~ 10 °.
Wherein, described epimere cylindrical shell is inclination cylindrical shell, and described hypomere cylindrical shell is inclination cylindrical shell, and described stage casing cylindrical shell is upright cylindrical shell or inclination cylindrical shell.
Wherein, described epimere cylindrical shell is inclination cylindrical shell, and described hypomere cylindrical shell is upright cylindrical shell, and described stage casing cylindrical shell is upright cylindrical shell or inclination cylindrical shell.
Wherein, described epimere cylindrical shell is upright cylindrical shell, and described hypomere cylindrical shell is upright cylindrical shell, and described stage casing cylindrical shell is inclination cylindrical shell.
Wherein, described epimere cylindrical shell is upright cylindrical shell, and described hypomere cylindrical shell is inclination cylindrical shell, and described stage casing cylindrical shell is upright cylindrical shell or inclination cylindrical shell.
Wherein, the inclination established angle β of the inclination cylindrical shell arranged in described tilt sleeve is unequal.
Wherein, connected by Flange joint or butt welding between each section of cylindrical shell.
Beneficial effect of the present invention:
Sleeve pipe of the present invention includes upstanding sleeve and/or tilt sleeve; Diagonal-bracing type annular-pipe reactor adopts and is mutually combined by upstanding sleeve and tilt sleeve; Or, the technical scheme mutually combined by tilt sleeve, the sleeve pipe that the present invention overcomes traditional annular-pipe reactor can only be the technology prejudice of upstanding sleeve, adopt the technical scheme improved the contact area of installation foundation can be increased, thus increase the anti-ability of toppling over moment of flexure of sleeve pipe, also disperseed the load of whole annular-pipe reactor, this technological invention solves the strength and stability requirement of tall and slender structure simultaneously.
Accompanying drawing explanation
The invention will be further described to utilize accompanying drawing, but the embodiment in accompanying drawing does not form any limitation of the invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, can also obtain other accompanying drawing according to the following drawings.
Fig. 1 is the structural representation of annular-pipe reactor of the prior art.
Fig. 2 is the structural representation of a kind of embodiment of a kind of diagonal-bracing type annular-pipe reactor of the present invention.
Fig. 3 is the structural representation of the another kind of embodiment of a kind of diagonal-bracing type annular-pipe reactor of the present invention.
Fig. 4 is the structural representation of a kind of embodiment of the sleeve pipe of a kind of diagonal-bracing type annular-pipe reactor of the present invention.
Fig. 5 is the structural representation of the another kind of embodiment of the sleeve pipe of a kind of diagonal-bracing type annular-pipe reactor of the present invention.
Include in FIG:
R1, R2, R3, R4, R5, R6---sleeve pipe,
A1, A2, A3, B1, B2, B3---elbow,
C1, C2, C3, C4, C5---chuck communicating pipe,
D1, D2, D3, D4, D5, D6---erection support,
The cooling medium flow export of 2A---the cooling medium inflow entrance of chuck runner, 2F---chuck runner,
1A---reaction mass inflow entrance, 1B---reaction mass flow export,
Include in Fig. 2 to Fig. 5:
R1, r2, r3, r4, r5, r6---sleeve pipe,
A1, a2, a3, b1, b2, b3---elbow,
C1, c2, c3, c4, c5, c6, c7, c8, c9, c10, c11, h1, h2---abutted flange,
D1, d2, d3---erection support,
A---reaction mass inflow entrance, b---reaction mass flow export,
β---inclination established angle,
R11, r21---epimere cylindrical shell, r12, r22---stage casing cylindrical shell.
Detailed description of the invention
The invention will be further described with the following Examples.
embodiment 1
One of detailed description of the invention of a kind of diagonal-bracing type annular-pipe reactor of the present invention, as shown in Figures 2 and 3, include the sleeve pipe r1 of some, r2, r3, r4, r5, r6, chuck communicating pipe, elbow a1, a2, a3, b1, b2, b3 and erection support d1, d2, d3, described sleeve pipe includes inner and outer tubes, described elbow and described interior pipe are sequentially connected in series into the conveying of reaction mass and the connection runner of reaction, described chuck communicating pipe be positioned at described elbow to be connected with described outer tube, described interior pipe and the chuck runner formed between described outer tube are connected into carry cooling medium be communicated with runner, wherein a is reaction mass inflow entrance, b is reaction mass flow export.Above-mentioned technical characteristic is identical with the structure of annular-pipe reactor of the prior art.A kind of diagonal-bracing type annular-pipe reactor of the present invention also possesses other basic structure of annular-pipe reactor of the prior art.
Improvements of the present invention are, described sleeve pipe includes upstanding sleeve and/or tilt sleeve; As shown in Figure 3, described diagonal-bracing type annular-pipe reactor is combined mutually by upstanding sleeve and tilt sleeve, form lower large little assembly on the whole, such as: sleeve pipe r1, r2, r3 are tilt sleeves, sleeve pipe r4, r5, r6 are upstanding sleeve, mutually combine between them, making annular-pipe reactor is on the whole lower large little assembly; Or, as shown in Figure 2, described diagonal-bracing type annular-pipe reactor is combined to form lower large little assembly mutually by tilt sleeve, lower large little assembly increases because bottom and the contact area of installation foundation are large the ability resisting and topple over moment of flexure, also the load of whole equipment has been disperseed, superstructure reduces the horizontal illeffects that can reduce wind load, and the strength and stability that this technological invention can solve tall and slender structure to a certain extent requires problem.
Compared with prior art, the contact area of installation foundation all can increase by above-mentioned two kinds of technical schemes, thus increase the anti-ability of toppling over moment of flexure of sleeve pipe, also disperseed the load of whole equipment, this technology can solve the strength and stability requirement of tall and slender structure to a certain extent simultaneously.
Concrete, described tilt sleeve and the inclination established angle β vertically between center line are set to 2 ° ~ 10 °.
Concrete, described tilt sleeve and the inclination established angle β vertically between center line are set to 2 °.Typically, in annular-pipe reactor technical field, the technical staff of the industry all thinks that the interior pipe internal surface of annular-pipe reactor requires that polishing is smooth, reduce the structure had some setbacks, its objective is and be conducive to the flowing of material in inside, avoid material to glue wall and cause gathering blocking, the technical staff of the industry thinks: sleeve pipe should be vertical installation, there is inclination established angle β be unfavorable for that material is at inner smooth outflow to avoid sleeve pipe.But true checking, the return bend runner of 180 ° for the conveying of material without any problem, so, the present inventor overcomes the technical scheme of conventional art prejudice, the tilt sleeve of 2 ° ~ 10 ° is adopted to tilt to install, it not only can not affect reaction and the conveying of material, and for the sleeve pipe of 60 meters high, the inclination established angle β of 2 ° can make two sleeve pipe tops narrow apart from nearly 4.2 meters, if its first half of same sleeve pipe is that diagonal brace is upright, Lower Half is the combination diagonal brace vertical type of vertical stand-up, also two sleeve pipe tops can be made to narrow apart from nearly 2.1 meters, the obvious stability improving structure.
embodiment 2
The detailed description of the invention two of a kind of diagonal-bracing type annular-pipe reactor of the present invention, as shown in Figure 4 and Figure 5, the main technical schemes of the present embodiment is identical with embodiment 1, in the present embodiment unaccounted feature, adopt the explanation in embodiment 1, no longer repeat at this.The difference of the present embodiment and embodiment 1 is: described tilt sleeve includes epimere cylindrical shell, stage casing cylindrical shell and hypomere cylindrical shell, have at least one section of cylindrical shell to be inclination cylindrical shell in described epimere cylindrical shell, stage casing cylindrical shell and hypomere cylindrical shell, and described inclination cylindrical shell and the inclination established angle β vertically between center line are set to 2 ° ~ 10 °.
Concrete, the inclination established angle β of the inclination cylindrical shell arranged in described tilt sleeve is unequal.
Concrete, connected by abutted flange between each section of cylindrical shell or butt welding connection.C1, c2, c3, c4, c5, c6, c7, c8, c9, c10, c11, h1, h2 shown in figure is abutted flange.
embodiment 3
The detailed description of the invention three of a kind of diagonal-bracing type annular-pipe reactor of the present invention, the main technical schemes of the present embodiment is identical with embodiment 2, in the present embodiment unaccounted feature, adopts the explanation in embodiment 2, no longer repeats at this.The difference of the present embodiment and embodiment 2 is: as shown in Figure 4, chooses sleeve pipe r1 and r2, and wherein said epimere cylindrical shell r11 and r21 is inclination cylindrical shell, and described hypomere cylindrical shell is inclination cylindrical shell, and described stage casing cylindrical shell r12 and r22 is upright cylindrical shell or inclination cylindrical shell.Wherein do not draw hypomere cylindrical shell in Fig. 4.Epimere cylindrical shell r11 and r21 of single sleeve pipe r1 and r2 from combination and stage casing cylindrical shell r12 and r22, the distance between the lower end of stage casing cylindrical shell r12 and r22 is greater than the distance between epimere cylindrical shell r11 and r21 upper end.
embodiment 4
The detailed description of the invention four of a kind of diagonal-bracing type annular-pipe reactor of the present invention, the main technical schemes of the present embodiment is identical with embodiment 2, in the present embodiment unaccounted feature, adopts the explanation in embodiment 2, no longer repeats at this.The difference of the present embodiment and embodiment 2 is: as shown in Figure 5, chooses sleeve pipe r1 and r2, and wherein said epimere cylindrical shell r11 and r21 is inclination cylindrical shell, and described hypomere cylindrical shell is upright cylindrical shell, and described stage casing cylindrical shell r12 and r22 is upright cylindrical shell or inclination cylindrical shell.Wherein do not draw hypomere cylindrical shell in Fig. 5.Epimere cylindrical shell r11 and r21 of single sleeve pipe r1 and r2 from combination and stage casing cylindrical shell r12 and r22, the distance between the lower end of stage casing cylindrical shell r12 and r22 is greater than the distance between epimere cylindrical shell r11 and r21 upper end.
embodiment 5
The detailed description of the invention five of a kind of diagonal-bracing type annular-pipe reactor of the present invention, the main technical schemes of the present embodiment is identical with embodiment 2, in the present embodiment unaccounted feature, adopts the explanation in embodiment 2, no longer repeats at this.The difference of the present embodiment and embodiment 2 is: described epimere cylindrical shell is upright cylindrical shell, and described hypomere cylindrical shell is upright cylindrical shell, and described stage casing cylindrical shell is inclination cylindrical shell.
embodiment 6
The detailed description of the invention six of a kind of diagonal-bracing type annular-pipe reactor of the present invention, the main technical schemes of the present embodiment is identical with embodiment 2, in the present embodiment unaccounted feature, adopts the explanation in embodiment 2, no longer repeats at this.The difference of the present embodiment and embodiment 2 is: described epimere cylindrical shell is upright cylindrical shell, and described hypomere cylindrical shell is inclination cylindrical shell, and described stage casing cylindrical shell is upright cylindrical shell or inclination cylindrical shell.
Diagonal-bracing type annular-pipe reactor in the present invention also can be applicable to the endless tube technical field of heat exchangers of endless tube heat exchanger or jacketed.
Finally should be noted that; above embodiment is only in order to illustrate technical scheme of the present invention; but not limiting the scope of the invention; although done to explain to the present invention with reference to preferred embodiment; those of ordinary skill in the art is to be understood that; can modify to technical scheme of the present invention or equivalent replacement, and not depart from essence and the scope of technical solution of the present invention.
Claims (9)
1. a diagonal-bracing type annular-pipe reactor, include the sleeve pipe of some, chuck communicating pipe, elbow and erection support, described sleeve pipe includes inner and outer tubes, described elbow and described interior pipe are sequentially connected in series into the conveying of reaction mass and the connection runner of reaction, described chuck communicating pipe be positioned at described elbow to be connected with described outer tube, described interior pipe and the chuck runner formed between described outer tube are connected into carry cooling medium be communicated with runner, it is characterized in that: described sleeve pipe includes upstanding sleeve and/or tilt sleeve; Described diagonal-bracing type annular-pipe reactor is combined mutually by upstanding sleeve and tilt sleeve; Or described diagonal-bracing type annular-pipe reactor is combined mutually by tilt sleeve; Described tilt sleeve and the inclination established angle β vertically between center line are set to 2 ° ~ 10 °.
2. a kind of diagonal-bracing type annular-pipe reactor according to claim 1, is characterized in that: described tilt sleeve and the inclination established angle β vertically between center line are set to 2 °.
3. a kind of diagonal-bracing type annular-pipe reactor according to claim 1, it is characterized in that: described tilt sleeve includes epimere cylindrical shell, stage casing cylindrical shell and hypomere cylindrical shell, have at least one section of cylindrical shell to be inclination cylindrical shell in described epimere cylindrical shell, stage casing cylindrical shell and hypomere cylindrical shell, and described inclination cylindrical shell and the inclination established angle β vertically between center line are set to 2 ° ~ 10 °.
4. a kind of diagonal-bracing type annular-pipe reactor according to claim 3, it is characterized in that: described epimere cylindrical shell is inclination cylindrical shell, described hypomere cylindrical shell is inclination cylindrical shell, and described stage casing cylindrical shell is upright cylindrical shell or inclination cylindrical shell.
5. a kind of diagonal-bracing type annular-pipe reactor according to claim 3, it is characterized in that: described epimere cylindrical shell is inclination cylindrical shell, described hypomere cylindrical shell is upright cylindrical shell, and described stage casing cylindrical shell is upright cylindrical shell or inclination cylindrical shell.
6. a kind of diagonal-bracing type annular-pipe reactor according to claim 3, it is characterized in that: described epimere cylindrical shell is upright cylindrical shell, described hypomere cylindrical shell is upright cylindrical shell, and described stage casing cylindrical shell is inclination cylindrical shell.
7. a kind of diagonal-bracing type annular-pipe reactor according to claim 3, it is characterized in that: described epimere cylindrical shell is upright cylindrical shell, described hypomere cylindrical shell is inclination cylindrical shell, and described stage casing cylindrical shell is upright cylindrical shell or inclination cylindrical shell.
8. a kind of diagonal-bracing type annular-pipe reactor according to claim 3, is characterized in that: the inclination established angle β of the inclination cylindrical shell arranged in described tilt sleeve is unequal.
9. a kind of diagonal-bracing type annular-pipe reactor according to claim 3, is characterized in that: connected by Flange joint or butt welding between each section of cylindrical shell.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101983763A (en) * | 2010-12-15 | 2011-03-09 | 茂名重力石化机械制造有限公司 | Annular pipe reactor |
| CN202778498U (en) * | 2012-09-14 | 2013-03-13 | 茂名重力石化机械制造有限公司 | Inclined strut type annular pipe reactor |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101983763A (en) * | 2010-12-15 | 2011-03-09 | 茂名重力石化机械制造有限公司 | Annular pipe reactor |
| CN202778498U (en) * | 2012-09-14 | 2013-03-13 | 茂名重力石化机械制造有限公司 | Inclined strut type annular pipe reactor |
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Address after: 525024 Guangdong City, Maoming Province Ring West Road, No. 91 Patentee after: Maoming gravity Petrochemical Equipment Co Ltd Address before: 525024 Maoming City, Guangdong Province West Road, Maoming City, the gravity of the Petrochemical Machinery Manufacturing Co., Ltd., Patentee before: The Challenge Petrochemical Machinery Corporation |