CN102829181A

CN102829181A - Sealing device used for chemical reactor

Info

Publication number: CN102829181A
Application number: CN201110166139XA
Authority: CN
Inventors: 恩里科·里奇
Original assignee: Ammonia Casale SA
Current assignee: Casale SA
Priority date: 2011-06-16
Filing date: 2011-06-16
Publication date: 2012-12-19

Abstract

A sealing device used for chemical reactors (1 and 20) is safe, reliable, and simple in structure, and easy to assemble and disassemble, wherein the chemical reactors (1 and 20) comprise shells (2) and convex pieces (3) and metal sheets (10), the convex pieces are supported by the shells (2) and inserted into convex strips (4) by certain intervals, and the metal sheets (10) can be fixedly connected on the convex pieces (3) in a deformation manner and protrude in a gap (8) to be used for blocking a fluid channel of the gap.

Description

The seal arrangement that is used for chemical reactor

Technical field

The present invention relates to a kind of chemical reactor; The chemical reactor of the type comprises shell; By housing supports and have with gap to insert and be connected to the convex part in the concavity spare on the shell, and be used to stop seal arrangement through the fluid passage in the gap between convex part and the concavity spare.

Background technique

The chemical reactor of above-mentioned particular type has large-size usually, and when making the various element of forming this reactor, can not force too strict machining tolerance, because this will cause irrational high manufacture cost.In fact, various elements have quite thick tolerance aspect all, particularly for their size, alignment, concentricity and surface finishing.In fact, this structure belongs to the category that structural requirement is different from precision machined carpentry work-shop and boiler shop fully.

Therefore, the generally connection between these elements is inserted into setting by this way usually in the concavity spare such as the convex part; Promptly guarantee certain clearance; Avoiding assembly process to occur blocking, danger such as press fit, perhaps more serious is can not an element be inserted another element.

Therefore, the mode of accepting usually is to have certain clearance between the element of assembling back.Yet, being provided at by the fluid of the either side of connecting element and can freely passing through this gap, this is unacceptable, or can only on limited degree, accept.

In order to stop fluid to pass through the path in this gap, seal arrangement has been proposed.For example, advised in the gap, inserting the sealing gasket of gland packing type, when the convex part is inserted in the concavity spare, be fastened on the convex part.By this way, in fact fluid can not pass through the gap.Yet the shortcoming of this technology is with a kind of complete manual mode the gland packing grommet type seal to be installed, and more time-consuming and arduous is to carry out in the building site on putting into practice, and needs that the operator's is directly approaching.And also observed the shortcoming that the gland packing grommet type seal damages gradually.This is owing to inevitable relative little displacement between the connected element causes; Fall the losing of part of the material of chip and corrosion that causes thus and braiding gland packing owing to the wearing and tearing of gland packing, take place up to whole decomposition of gland packing self.

Summary of the invention

The objective of the invention is to design the chemical reactor of above-mentioned particular type, the 26S Proteasome Structure and Function characteristic of this chemical reactor can overcome with reference to the described shortcoming of existing technology.

This problem solves through the chemical reactor of above-mentioned particular type, and this chemical reactor is characterised in that seal arrangement is included in thin slice or paper tinsel or the sheet metal in the gap.

Optimal way is that said thin slice is fixedly connected on the convex part and towards concavity spare and is projected in the said gap.

Through describing exemplary and example indefiniteness of the embodiment of the invention below in conjunction with accompanying drawing, will become clearer according to the further feature and advantage of chemical reactor of the present invention.

Description of drawings

Fig. 1 shows the schematic cross sectional elevation according to chemical reactor of the present invention;

Fig. 2 shows the enlarged perspective of the details of chemical reactor shown in Figure 1;

Fig. 3,4,5 shows details according to chemical reactor of the present invention shown in Figure 1 by the schematic representation shown in the sequential steps of its operation;

Fig. 6 shows the schematic cross sectional elevation of chemical reactor of the present invention in accordance with another embodiment of the present invention;

Fig. 7 shows according to the embodiment as selection, the partial, exploded perspective view of the details among Fig. 2; And

Fig. 8 shows according to another as the embodiment who selects, the fragmentary, perspective view of the details among Fig. 2.

Embodiment

With reference to accompanying drawing, chemical reactor integral body is expressed as label 1.Chemical reactor 1 comprises shell 2 and has the convex part 3 that inserts with gap in the concavity spare 4.Particularly convex part 3 is burners 5 in burning or oxidation reactor 1; This part have elongated cylindrical that axis is X-X and by housing supports in its end 5a; And this part has relative cantilever end 5b; Cantilever end 5b coaxially and have and insert with gap in the concavity spare 4, concavity spare 4 is housings 6, housing 6 defines the opening 7 in the shell 2.

Between the inner surface 4a of the outer surface 3a of convex part 3 and concavity spare 4, form annular gap 8.Convex part 3 has at the big cross-sectional dimension from 300 to 1500mm scopes.In this example, the about 600mm of the diameter of convex part 3.Gap 8 also has large-size, at the order of magnitude of 1-2cm.In this example, the radial dimension G in this gap is about 10mm.

Convex part 3 is H with concavity spare 4 height inserted into each other.

Chemical reactor 1 also comprises the seal arrangement 9 that is arranged in the gap 8, so that stop the fluid passage through gap self.

Seal arrangement 9 comprises metal foil or sheet metal 10, and sheet metal is processed by stainless steel in this example, and sheet metal 10 has less thickness S, and the scope of S is to 1mm, so that sheet metal can be out of shape from 0.1.S is 0.3mm in this example.

Thin slice 10 is fixedly connected on the convex part 3 and is projected in the said gap, up to pushing concavity spare 4.

Optimal way is, thin slice 10 is fixedly connected on the convex part 3 through rigid sleeve 11, and optimal way is that rigid sleeve 11 is formed from steel, and rigid sleeve 11 is fixedly connected to again on the convex part 3, for example, is welded to part 3 from being coupled on the part 3 on one's body or with press-fit arrangement.By this way, cover 11 is integral parts of convex part 3.

Thin slice 10 is processed by the endless belt with predetermined altitude H1 12, for example height H 1 20 and 150mm between, optimal way is about 1/10 of diameter D.Endless belt 12 has first edge 13; The cantilever end 5b that first edge 13 is placed on convex part 3 goes up and is fixed on the cover 11, for example, uses soldering point 11a; And endless belt 12 has second edge 14 relative with first edge 13; Second edge 14 tilts to lean on and is pressed on the cover 11, and endless belt 12 also has intermediate seal part 15, intermediate seal part 15 and concavity spare 4 face contacts.

According to preferred embodiment, endless belt 12 has the substantially cross section of Omega (Ω) shape, the both wings

corresponding edge

13,14 of Omega (Ω) tee section wherein, and the corresponding intermediate seal part 15 of the circular arc shaped portion of Omega (Ω) tee section.

Thin slice 10 through the welding by above-mentioned solder joint 11a be attached to or be connected the cover 11 on, be engaged on the convex part 3 and overlap 11, the cover 11 through the welding or matching and fixing be connected on the convex part 3.Like this, part 3 (asking for an interview Fig. 3) is prepared to insert in the concavity spare 4.

Should be noted that intermediate seal part 15 from convex part 3 projection fully, in any case so that all with the inner surface 4a interference of concavity spare 4.For example, form interference clearance i, have the interference of 3-4mm.The interference of setting will increase along with the increase of the constuction fits of concavity spare.

See also Fig. 4; Convex part 3 is inserted in the concavity spare 4; Form intermediate seal part 15 and the face contact of concavity spare 4 and at least near the top of intermediate seal part 15 in resiliently deformable and at first then according to the size of interference and Sealing, thin plate 10 generation permanent deformations.

When in order to safeguard or any other reason when opening chemical reactor, must can take off convex part 3, the latter extracts (see figure 5) easily out from concavity spare.Thin plate 10 also is drawn out of and has elastic recovery part and permanent deformation part and can be used further to possible assembling more subsequently, or when thin plate 10 damages, can easily change.

Describe chemical reactor 20 in accordance with another embodiment of the present invention with reference to Fig. 6 below, the parts label that wherein identical with chemical reactor 1 structure parts are identical with function is identical.

Specifically; In synthesis reactor 20; Convex part 3 is cylindrical elements, such as having by the relative end 21a of shell 2 supports and the heat exchanger 21 of core 21b, is tube bank substantially; Have and insert with gap in the concavity spare 4, concavity spare 4 comprises the coaxial annular catalytic bed 22 of three overlappings.

Between in heat exchanger 21 and three catalytic bed 22 each, two seal arrangements 9 are set, each seal arrangement all seal arrangement with above-mentioned is identical.

Describe according to the present invention as the embodiment's who selects thin slice 30 with reference to Fig. 7 below, wherein the identical label of parts employing that is equal to of 26S Proteasome Structure and Function and the parts of thin slice 10.Thin slice 30 is preferably processed by a plurality of parts, and all parts are all indicated by label 31, and in this example, thin slice 30 is processed by four parts, and every part has identical angle amplitude, and each part obtains through drawing easily.Each part is connected to through solder joint and puts, strictly with adjacent part side by side.

Describe thin slice 40 according to another embodiment of the invention with reference to Fig. 7 below, wherein 26S Proteasome Structure and Function adopts identical label with the parts that the parts of thin slice 10 are equal to.Thin slice 40 preferably is provided with a plurality of slits 41 that spacing or impartial spacing with rule distribute at its free edge 14, in this example is 32, because slit, edge 14 will tilt to lean on and be pressed on the cover 11 with improved pliability.

Major advantage according to chemical reactor of the present invention is its trouble-free reliability and its operating security.Life-span that can obtain to prolong and do not need to safeguard.

Further advantage according to chemical reactor of the present invention is that it is simple in structure.And can expect; Not only when series or the new chemical reactor of single manufacturing, can utilize the present invention; And when renovating or repairing old chemical reactor, also can utilize the present invention, wearing and tearing and corrosion generally make thicker initial tolerances worsen more in the wherein old chemical reactor.Perhaps, even need sealing be added on the surface when repairings, and the past does not expect sealing is added in (so being not suitable for traditional sealing system) on this surface, can use seal arrangement of the present invention yet.For example, in the situation such as the chemical reactor of burner, wherein concavity spare applies refractory material with the form of refractory cement casting or the form of refractory brick usually fully, also can use the present invention.

Be that according to the advantage of chemical reactor of the present invention its assembling is simple, only need through the individual in the work of the reactor outside, and needn't be special careful, so to say that blindly.

Further advantage according to chemical reactor of the present invention is that it is very easy to dismounting, only is to extract out from the outside, and disassembling section therein that needn't be previous.

Clearly, can make multiple modification to above-mentioned reactor, in protection scope of the present invention that all modifications all falls into claim and limited in order to satisfy concrete and specific needs those of ordinary skill in the art.

Claims

1. a chemical reactor (1,20) comprising: shell (2); Support and have certain interval ground by shell (2) and insert the convex part (3) in the concavity spare (4) be connected on the shell (2); And be used to stop the seal arrangement (9) through the fluid passage in the gap between convex part and the concavity spare, it is characterized in that said seal arrangement (9) is included in the thin slice (10 in the said gap (8); 30,40).

2. chemical reactor according to claim 1 (1,20) is characterized in that, said sheet metal (10,30,40) is fixedly connected on the convex part and is projected in the said gap (8).

3. chemical reactor according to claim 2 (1,20) is characterized in that, said thin slice (10,30,40) is formed by the endless belt with predetermined altitude (H1) (12).

4. chemical reactor according to claim 3 (1,20) is characterized in that, the height (H1) of said endless belt (12) approximate greatly convex part (3) cross-sectional diameter (D) 1/10.

5. chemical reactor according to claim 4 (1,20) is characterized in that, said endless belt (12) have first edge (13) that is fixedly connected on the convex part (3) and are projected into the intermediate seal part (15) in the said gap (8).

6. chemical reactor according to claim 5 (1,20) is characterized in that, said endless belt (12) have second edge (14) relative with first edge (13), and second edge (14) tilt to lean on and are pressed on the convex part (3).

7. chemical reactor (1 according to claim 6; 20); It is characterized in that; Said endless belt (12) has the substantially cross section of Omega (Ω) shape, wherein wing one-tenth first edge (13) of Omega (Ω) tee section and second edge (14), and the circular arc shaped portion of Omega (Ω) tee section forms intermediate seal partly (15).

8. chemical reactor (1 according to claim 7; 20); It is characterized in that; Said reactor comprises the cover (11) that is fixedly connected on the said convex part (3), and first edge (13) of said endless belt (12) is welded on the said cover (11) and said second edge (14) inclination leans on and is pressed on the said cover (11).

9. chemical reactor according to claim 8 (1,20) is characterized in that, said endless belt (12) are processed by the single various piece (31) that is fixed on the said cover (11).

10. chemical reactor according to claim 6 (1,20) is characterized in that, second edge (14) of said endless belt (12) is provided with lateral slit 41.