CN202485387U

CN202485387U - Energy-saving air pressure circulatory drying equipment

Info

Publication number: CN202485387U
Application number: CN2011204412182U
Authority: CN
Inventors: 刘思东; 仇德宝
Original assignee: ZHOUSHAN CITY INSTITUTE OF MACHINERY DESIGN
Current assignee: ZHOUSHAN CITY INSTITUTE OF MACHINERY DESIGN
Priority date: 2011-11-09
Filing date: 2011-11-09
Publication date: 2012-10-10
Anticipated expiration: 2021-11-09

Abstract

The utility model provides energy-saving air pressure circulatory drying equipment and belongs to the field of drying equipment for materials, which comprises two discs, a main shaft tube, a spiral plate and coil pipes. The middle parts of the discs are provided with inner holes. The spiral plate is arranged between the two discs. The outer hubs of the two discs are welded with the coil pipes. The main shaft tube is arranged inside the inner holes of the discs. Steam is led into the discs through the main shaft tube. The spiral plate arranged between the two discs is used for guiding steam to flow from inside to outside. When steam reaches the outer hubs of the discs, steam enters the coil pipes. After coming around the coil pipes for one circle, condensed water enters the main shaft tube so as to complete the entire steam heat exchange process. During the entire steam heat exchange process, due to the adoption of the energy-saving air pressure circulatory drying equipment, steam flows smoothly and the entire discs are served as heat exchange surfaces. Meanwhile, since the coil pipes are arranged on the outermost rims of the discs, steam flows more smoothly. The efficiency of heat exchange is greatly improved.

Description

Energy-conservation air pressure cyclic drying equipment

Technical field

The utility model relates to a kind of steam drying equipment, and especially a kind of energy-conservation air pressure cyclic drying equipment that utilizes Steam Heating oven dry material belongs to the dry materials apparatus field.

Background technology

The drying materials equipment of better performances mainly adopts following four kinds of structures (being 1500 millimeters with diameter is example) in the market.

1, coiled (Fig. 3,4): utilize coil pipe to lead to Steam Heating, its heating surface (area) (HS is a coil surface area, though heating surface (area) (HS is bigger; Warp calculating reaches 2.71 ㎡ but owing to carry material easily secretly between the coil pipe, makes the interior steam heat of pipe be difficult for spreading out of, and has influenced the heat conduction; It is long heat time heating time to cause being carried secretly material, some in addition burn phenomenon, thereby influenced quality of material; Increase steam consumption quantity simultaneously, reduced the thermal efficiency.

2, rotating disc type (Fig. 5,6): utilize double-deck disc structure form, middle logical steam.Compare its heating surface (area) (HS with coiled and cover to whole disk, heat also more evenly, but because it is not a forced circulation steam, the while, its cylindrical was a wedge angle, had not only reduced heating surface (area) (HS, had also increased steam to flow resistance, thereby had influenced heat transfer efficiency.

3, tube-sheet type (Fig. 7,8): utilize dull and stereotyped both sides to cover heating tube; Make the steam forced circulation, improved the thermal efficiency, but because its excircle can not cover heating surface (area) (HS; The both sides heating tube covers inhomogeneous simultaneously; It can only rely on the long-pending conduction of material section, has reduced conduction surface, influences its firing rate.

4, flat (Fig. 9,10): it utilizes double-deck disc structure form, middle logical steam.Excircle part is a square structure, overcomes the not good disadvantage of steam heat-transfer effect of rotating disc type wedge angle, has influenced its heat conduction but its cylindrical is thicker, and its also optional cyclic steam influences heat transfer efficiency simultaneously.

Summary of the invention

The purpose of the utility model provides a kind of energy-conservation air pressure cyclic drying equipment.

The problem that the utility model will solve is the not high deficiency of heat exchange utilization rate of existing dry materials equipment.

For realizing the purpose of the utility model, the technical scheme that the utility model adopts is:

Energy-conservation air pressure cyclic drying equipment comprises two disks, spindle tube, flight and coil pipes, has endoporus in the middle of the disk, is welded with flight between two disks, and the outer hub of two disks is welded with coil pipe, and spindle tube is installed in the endoporus of disk.Steam is led in the disk by spindle tube, and a flight is arranged between two disks, and guiding steam flows from inside to outside, and steam gets into coil pipe when arriving the outer hub of disk, one week of wound coil the back condensed water import spindle tube, accomplish whole steam heat exchange process thus.

From whole steam flow, the energy-conservation air pressure cyclic drying equipment that adopts the utility model to provide, steam flows smooth and easy; Whole disk is heat-exchange surface; And coil pipe is in outer most edge, and the steam circulation is more unimpeded, and its cylindrical heats is best in the material heating process; The maximum heating surface of this structure is just at cylindrical, thereby improves the efficient of heat exchange greatly.

Description of drawings

Fig. 1 is the front view of the energy-conservation air pressure cyclic drying of the utility model equipment;

Fig. 2 is the side view of the energy-conservation air pressure cyclic drying of the utility model equipment;

Fig. 3 is the front view of coiled;

Fig. 4 is the side view of coiled;

Fig. 5 is the front view of rotating disc type;

Fig. 6 is the side view of rotating disc type;

Fig. 7 is the front view of tube-sheet type;

Fig. 8 is the side view of tube-sheet type;

Fig. 9 is flat sketch map;

Figure 10 is flat sketch map;

Among Fig. 1,2: 1, spindle tube 2, flight 3, coil pipe 4, disk.

The specific embodiment

Below in conjunction with accompanying drawing and embodiment the utility model is further described.

Be calculated as example with 1500 millimeters monolithic areas of diameter at present; Energy-conservation air pressure cyclic drying equipment; Comprise two disks 4, spindle tube 1, flight 2 and coil pipe 3, have endoporus in the middle of the disk 4, be welded with flight 2 between two disks 4; Two disks, 4 outer hubs are welded with coil pipe 3, and spindle tube 1 is installed in the endoporus of disk 4.Steam is led in the disk 4 by spindle tube 1, and a flight 2 is arranged between two disks 4, and guiding steam flows from inside to outside, and steam gets into coil pipe 3 when arriving the outer hub of disk 4, and 3 one week of wound coil back condensed waters importing spindle tubes 1 are accomplished whole steam heat exchange process thus.From whole steam flow, the energy-conservation air pressure cyclic drying equipment that adopts the utility model to provide, steam flows smooth and easy; Whole disk 4 is heat-exchange surface; And coil pipe 3 is in outer most edge, and the steam circulation is more unimpeded, and its cylindrical heats is best in the material heating process; The maximum heating surface of this structure is just at cylindrical, thereby improves the efficient of heat exchange greatly.About 3.66 ㎡ of its heat exchange area are that heating surface (area) (HS is maximum in five kinds of structures, utilization rate is the highest, because it is unimpeded to flow, are again forced circulation steam, so its heat transfer efficiency improves 20%～30% than above-mentioned four kinds of main versions.

Be calculated as example with 1500 millimeters monolithic areas of diameter, the heating surface (area) (HS of various versions is calculated as follows at present:

Through computational analysis, existing that heat exchange area, utilization rate, actual heat exchange area, actual transpiring moisture capabilities list is following: (comparing) with 1500 millimeters monolithics of diameter

Claims

1. energy-conservation air pressure cyclic drying equipment; Comprise two disks (4), spindle tube (1), flight (2) and coil pipe (3); It is characterized in that: have endoporus in the middle of the disk (4); Be welded with flight (2) between two disks (4), the outer hub of two disks (4) is welded with coil pipe (3), and spindle tube (1) is installed in the endoporus of disk (4).