CN102774864A

CN102774864A - Recovering device for steam in capacitance-expanding groove

Info

Publication number: CN102774864A
Application number: CN2011101169723A
Authority: CN
Inventors: 阳志洪; 刘莉娜; 杨小平
Original assignee: Guiyang Aluminum Magnesium Design and Research Institute Co Ltd
Current assignee: Guiyang Aluminum Magnesium Design and Research Institute Co Ltd
Priority date: 2011-05-09
Filing date: 2011-05-09
Publication date: 2012-11-14
Anticipated expiration: 2031-05-09
Also published as: CN102774864B

Abstract

The invention discloses a recovering device for steam in a capacitance-expanding groove. The device comprises a capacitance-expanding groove (1) and an exhaust pipe (3); the exhaust pipe (3) is fixed on the capacitance-expanding groove (1), a shower pipe (4) is fixed at the center of a central part of the exhaust pipe (3) through a support (7), three layers of small spraying bores (6) are arranged in the shower pipe (4) at an interval of 0.8 to 1.5 m, starting from a bottom shell cover (5), and the bore diameters of the three layers of small spraying bores are, from bottom to top, phi 15 mm, phi 10 mm and phi 5 mm, respectively. According to a technical scheme provided by the invention, three layers of umbrella-shaped water nets which become increasingly finer are constructed and the water nets cooperate with spray water of a water inlet pipe (2), which enables effective hierarchical cooling and capturing of ascending steam to be realized; and therefore, the efficiency of condensation and recycling of steam is improved, and the ascending amount of gas in the capacitance-expanding groove (1) is reduced.

Description

Dilatation groove vapor-recovery unit

Technical field

The invention belongs to energy recovery and utilize the field, relate in particular to a kind of dilatation groove vapor-recovery unit.

Background technology

During modern aluminum industry is produced; The alumina producing stripping technological process that is absolutely necessary, in the alumina producing dissolving-out process, the dissolved mineral slurry self-evaporation process can produce a large amount of exhaust steam; For recycling this part energy; This part exhaust steam gets into condensing surface after multistage raw pulp preheating and multistage self-evaporatint n., in condensing surface, get into the dilatation groove after the condensation, and conventional art is with an easy water jet standpipe is set on the steam inlet pipe of dilatation groove the steam that gets into the dilatation groove to be reclaimed; Steam mixes with the water of water jet standpipe ejection; Its heat is sprayed water to absorb forms hot water, is delivered to the hot water station and recycles, and vapor pipe enters atmosphere to the steam that is not recovered from dilatation groove top.Production practice show that because the efficient of inlet waterworks absorption steam is extremely low, a large amount of steam directly enter atmosphere from the vapor pipe at dilatation groove top, cause the waste of a large amount of steam thermal energies.

Summary of the invention

The technical problem that the present invention will solve is: providing a kind of can effectively recycle uncooled steam in the dilatation groove, reduces the dilatation groove vapor-recovery unit that dilatation groove top exit emits tolerance.

Technical scheme of the present invention: a kind of dilatation groove vapor-recovery unit, it comprises dilatation groove and vapor pipe, vapor pipe be fixed on the dilatation groove above, shower is fixed on the center, middle part of vapor pipe through support.

The import of shower is in the middle and upper part of vapor pipe.

Shower is provided with three layers has the spray aperture, and the interval between layer and the layer is at 0.8-1.5m, and its bottom bulkhead is a first layer, and all the other two-layer spray apertures are along the radial distribution of shower.

The pore size of three layers of spray aperture to down and on be respectively φ 15mm, φ 10mm and φ 5mm.

According to technical scheme of the present invention; The steam that is not condensed in the dilatation groove still has most of steam not to be absorbed after the water of water inlet pipe ejection absorbs for the first time and gets into the vapor pipe of dilatation groove; In the vapor pipe at dilatation groove top, introduce shower with three layers of spray aperture; Can carry out three sprays to this part steam and catch, to down and upward making up 3 layers of umbrella network of rivers, recycling is caught in the cooling of effectively steam that rises being carried out step by step; The pore size of three layers of spray aperture to down and on be respectively φ 15mm, φ 10mm and φ 5mm make the water one-level that sprays out fine and closely woven than one-level, improve the efficient that vapor condensation is recycled, minimizing dilatation groove top exit emits tolerance.

Description of drawings

Fig. 1 is a structural representation of the present invention;

Fig. 2 is the enlarged diagram of shower 4 structures;

Fig. 3 be among Fig. 2 A to enlarged view.

Embodiment

Embodiments of the invention: like Fig. 1, Fig. 2 and shown in Figure 3; Shower 4 height from the vapor pipe 3 gets into vapor pipe 3 apart from about 5 meters position, dilatation groove 1 top, and it is parallel with vapor pipe 3 that shower 4 gets in the vapor pipes 3 back bendings downwards, and is fixed on the inside center of vapor pipe 3 through support 7; From bottom bulkhead 5 beginning interval 1m three layers of spray aperture 6 that radially distributes are set on the shower 4 in the vapor pipe 3; Wherein bottom bulkhead 5 is a first layer, is uniformly distributed with the aperture that the aperture is φ 15mm, can carry out the spray seizure first time to steam; Upwards the second layer aperture that is uniformly distributed with of the circumference setting apart from bottom bulkhead 5 about 1m places along shower 4 is the aperture of φ 10mm then; Steam is carried out second time spray catches, more upwards at interval 1m along the 3rd layer of spray aperture 6 that the aperture is φ 5mm that the circumference setting of shower 4 is uniformly distributed with steam is sprayed seizure for the third time; In the vapor pipe 3 of dilatation groove 1 to down and on make up 3 layers of umbrella network of rivers; And one-level is fine and closely woven than one-level, and the spray water of 3 layers of umbrella network of rivers and water inlet pipe 2 acts on simultaneously, and the cooling that can effectively carry out step by step the steam that rises is caught; Improve the efficient that vapor condensation is recycled, reduced the tolerance of emitting of dilatation groove 1 top exit.

In a word, the above is merely preferred embodiment of the present invention, and all equalizations of doing according to claim of the present invention change and modify, and all should belong to the covering scope of patent of the present invention.

Claims

1. dilatation groove vapor-recovery unit, it comprises dilatation groove (1) and vapor pipe (3), vapor pipe (3) be fixed on dilatation groove (1) above, it is characterized in that: shower (4) is fixed on the center at vapor pipe (3) middle part through support (7).

2. a kind of dilatation groove vapor-recovery unit according to claim 1, it is characterized in that: the import of shower (4) is in the middle and upper part of vapor pipe (3).

3. a kind of dilatation groove vapor-recovery unit according to claim 1; It is characterized in that: shower (4) is provided with three layers has spray aperture (6); Interval between layer and the layer is at 0.8-1.5m; Its bottom bulkhead (5) is a first layer, and all the other two-layer spray apertures (6) are along the radial distribution of shower (4).

4. a kind of dilatation groove vapor-recovery unit according to claim 3 is characterized in that: the pore size of three layers of spray aperture (6) to down and on be respectively φ 15mm, φ 10mm and φ 5mm.