CN213021058U - Steam distributor for steam extraction port of large vacuum condenser - Google Patents

Abstract

The utility model discloses a large-scale vacuum condenser's steam distributor for steam extraction opening, including vacuum condenser, vacuum condenser's inside machine-shaping has the inner chamber, inner chamber internally mounted has steam distributor, steam distributor be located inner chamber horizontal center line department and with the welding of inner chamber inner wall, steam distributor is including the aporate apron that is located the top and the full orifice plate that is located aporate apron below, seal welding and inside being formed with steam chamber way between aporate apron and the full orifice plate, steam chamber way's left end seal welding has preceding shrouding and right-hand member seal welding to have the back shrouding, a plurality of groups overflow hole has evenly been seted up in the junction that a plurality of groups orifice plate through-hole and lower extreme and inner chamber inner wall in the surface of full orifice plate. The utility model discloses a structure has the effect of steam scour protection baffle, effectively avoids steam to the direct striking of shells inner wall, slows down the vibration, reaches the purpose of making an uproar and improving the security of falling.

Description

Steam distributor for steam extraction port of large vacuum condenser

Technical Field

The utility model relates to a vacuum condenser technical field specifically is a large-scale vacuum condenser's steam distributor for steam pump-out mouth.

Background

The vacuum condenser for ship belongs to a large-size steam heat exchanger for ship, in the system which needs to keep its vacuum degree, an auxiliary condenser communicated with the vacuum condenser is arranged outside the vacuum condenser in the same system, part of steam and non-condensable gas generated by the vacuum condenser are extracted by the auxiliary system, a small part of steam separated from the mixed steam extracted together is condensed and recycled again to enter the vacuum condenser, meanwhile, the gas which can not be condensed is discharged so as to keep the vacuum degree in the vacuum condenser, and the mixed steam extracted by the auxiliary systems is extracted along the side of one surface of the shell of the vacuum condenser.

However, the existing vacuum condenser for a ship has the following problems in the use process: (1) the auxiliary system has poor extraction effect on the mixed steam, cannot achieve complete extraction and full separation and utilization, cannot keep the vacuum degree of the vacuum condenser, and has low recovery rate; (2) the auxiliary system is provided with a steam ejector, mixed gas of steam and uncondensed steam in the vacuum condenser is extracted, and when the mixed steam is extracted from the condenser cavity under the action of the auxiliary system of the vacuum condenser, the steam is easy to directly impact the inner wall of the shell of the device, so that noise is generated and even the steam is damaged. For this reason, a corresponding technical scheme needs to be designed to solve the existing technical problems.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a steam distributor for large-scale vacuum condenser's steam pump-out mouth has solved the problem that proposes in the background art, satisfies the in-service use demand.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a large-scale vacuum condenser's steam distributor for steam pump-out mouth, includes vacuum condenser, vacuum condenser's inside machine-shaping has the inner chamber, inner chamber internally mounted has steam distributor, steam distributor be located inner chamber horizontal center line department and with the inner chamber inner wall welding, steam distributor is including the aporate apron that is located the top and the full orifice plate that is located aporate apron below, seal welding and inside are formed with the steam chamber way between aporate apron and the full orifice plate, the left end seal welding of steam chamber way has preceding shrouding and right-hand member seal welding to have the back shrouding, a plurality of groups overflow hole have evenly been seted up with the junction of inner chamber inner wall to a plurality of groups orifice plate through-hole and lower extreme to the surface of full orifice plate.

As a preferred embodiment of the utility model, sclausura apron all is the slope form setting and both become 90 degrees contained angles with full orifice plate, sclausura apron becomes 30 degrees contained angles downwards with inner chamber horizontal centerline.

As a preferred embodiment of the utility model, sclausura apron and full orifice plate all adopt the piecemeal welding of a plurality of rectangle plate to form, adjacent two sets of seal welding between the rectangle plate.

As an embodiment of the utility model, a plurality of groups the use regular triangle of arranging of orifice plate through-hole is arranged, orifice plate through-hole external diameter is 13mm, and the hole interval of adjacent two sets of orifice plate through-holes is 20 mm.

As a preferred embodiment of the utility model, the overflow hole semicircular structure and radius are 7 mm.

Compared with the prior art, the beneficial effects of the utility model are as follows:

1. this scheme is designed with the steam distributor in vacuum condenser's inner chamber, the effect of retrieving dispersion mist has comprehensively, vacuum condenser's volume is great, the arrangement of shell side is general marine heat exchanger diameter relatively big, the ascending length of horizontal direction is longer, the steam dispersion that does not congeal that each part produced, set to the structure that runs through horizontal direction shells inner wall, full orifice plate can effectively collect the steam that does not congeal in whole casing, the mist that makes the entering casing passes through the orifice plate and evenly orderly, the quilt of steady flow rate is taken out, the efficiency of recovery is greatly improved.

2. The structure of this scheme has the effect of steam scour protection baffle, effectively avoids steam to the direct striking of shells inner wall, slows down the vibration, reaches the purpose of making an uproar and improving the security of falling.

Drawings

FIG. 1 is a schematic cross-sectional view of the present invention taken along with the inner wall of the vacuum condenser shell;

FIG. 2 is a schematic view of a full aperture plate arrangement at view A;

fig. 3 is a schematic diagram of the distribution of the through holes of the orifice plate.

In the figure, 1-inner cavity, 2-imperforate cover plate, 3-full-aperture orifice plate, 4-steam cavity, 5-front sealing plate, 6-rear sealing plate, 7-orifice plate through hole, 8-overflow hole and 9-rectangular plate.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: the utility model provides a large-scale vacuum condenser's steam distributor for steam pump-out mouth, including vacuum condenser, vacuum condenser's inside machine-shaping has inner chamber 1, 1 internally mounted in inner chamber has the steam distributor, the steam distributor is located 1 horizontal center line department of inner chamber and welds with 1 inner wall of inner chamber, the steam distributor is including the aporate apron 2 that is located the top and the full orifice plate 3 that is located aporate apron 2 below, seal welding and inside being formed with steam chamber way 4 between aporate apron 2 and the full orifice plate 3, aporate apron 2 all adopts national standard panel Q235B material with full orifice plate 3, the left end seal welding of steam chamber way 4 has preceding shrouding 5 and right-hand member seal welding to have back shrouding 6, both ends shrouding completely seals entire structure, force whole steam to flow in by orifice plate 7 department, a plurality of group orifice plate through-hole 7 and a plurality of groups overflow hole 8 have evenly been seted up with the junction of 1 inner wall of lower extreme to full orifice.

Further improved, as shown in fig. 1: aporate apron 2 and full orifice plate 3 all are the slope form setting and both become 90 degrees contained angles, also can be by the curved system shaping behind a full-page processing cloth hole, aporate apron 2 becomes 30 degrees contained angles downwards with 1 horizontal center line of inner chamber, aporate apron 2 sets up in the top, become gliding angle with horizontal position, the protection is congealed water and is slided to condenser bottom water tank and not taken out naturally, full orifice plate 3 sets up in the below, equally become interior angle of drawing with horizontal position, utilize the physical property of steam and water, ensure that the composition of being taken out is steam mixture, it can not taken out to congeal water.

Further improved, as shown in fig. 2: the pore-free cover plate 2 and the full pore plate 3 are formed by welding the rectangular plates 9, the adjacent rectangular plates 9 are hermetically welded, the splicing purpose is to ensure that the steam distributor and the inner wall of the shell are completely attached due to the adoption of the form of block splicing, and gaps are not easy to generate.

In a further improvement, as shown in fig. 3: the arrangement of a plurality of groups of pore plate through holes 7 uses regular triangles to arrange, the outer diameter of each pore plate through hole 7 is 13mm, the hole distance between every two adjacent groups of pore plate through holes 7 is 20mm, the pore plate through holes are uniformly arranged, the heat exchange effect of the whole system is optimal, and the heat exchange efficiency is highest.

Specifically, overflow hole 8 semicircular structure and radius are 7mm, because the temperature of steel sheet can make a small part steam condensation become the condensate water, this scheme sets up a plurality of overflow holes 8 in the orifice plate department of below, makes things convenient for the comdenstion water to discharge, prevents promptly to condense water and gathers in the orifice plate, also can collect this a small part of condensate water in vacuum condenser.

When in use: the utility model discloses a large-scale vacuum condenser's steam extraction mouth department along casing side department installation steam distributor carries out evenly taking out steam through the orifice plate through-hole 7 on full orifice plate 3, makes entire system's heat transfer effect reach the optimum, and heat exchange efficiency reaches the highest, and the orifice plate department of below sets up a plurality of overflow holes 8, makes things convenient for the comdenstion water to discharge, prevents promptly to condense water and gathers in the orifice plate, also can collect this a small part of water that condenses in vacuum condenser.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (5)

1. The utility model provides a large-scale vacuum condenser's steam distributor for steam extraction mouth, includes vacuum condenser, vacuum condenser's inside machine-shaping has inner chamber (1), its characterized in that: inner chamber (1) internally mounted has steam distributor, steam distributor be located inner chamber (1) horizontal center line department and with inner chamber (1) inner wall welding, steam distributor is including aporate apron (2) that is located the top and full orifice plate (3) that are located aporate apron (2) below, sealing weld and inside are formed with steam chamber way (4) between aporate apron (2) and full orifice plate (3), the left end sealing weld of steam chamber way (4) has preceding shrouding (5) and right-hand member sealing weld has back shrouding (6), a plurality of groups orifice plate through-hole (7) and lower extreme have evenly seted up a plurality of groups overflow hole (8) with the junction of inner chamber (1) inner wall on the surface of full orifice plate (3).

2. The steam distributor for the steam extraction port of the large-sized vacuum condenser according to claim 1, wherein: aporate apron (2) all are the slope form with full orifice plate (3) and set up and both become 90 degrees contained angles, aporate apron (2) become 30 degrees contained angles downwards with inner chamber (1) horizontal center line.

3. The steam distributor for the steam extraction port of the large-sized vacuum condenser according to claim 2, wherein: the pore-free cover plate (2) and the full pore plate (3) are formed by welding a plurality of rectangular plates (9) in a partitioning manner, and two adjacent groups of rectangular plates (9) are welded in a sealing manner.

4. The steam distributor for the steam extraction port of the large-sized vacuum condenser according to claim 1, wherein: the arrangement of the plurality of groups of the pore plate through holes (7) is arranged by using regular triangles, the outer diameter of each pore plate through hole (7) is 13mm, and the hole distance between every two adjacent groups of pore plate through holes (7) is 20 mm.

5. The steam distributor for the steam extraction port of the large-sized vacuum condenser according to claim 1, wherein: the overflow holes (8) are of semicircular structures and have the radius of 7 mm.

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