CN202119303U

CN202119303U - Three-dimensional spiral plate type air-air heat exchanger

Info

Publication number: CN202119303U
Application number: CN2011200764591U
Authority: CN
Inventors: 童明伟; 胡鹏; 童师颖; 陈才
Original assignee: BEIJING TIANYUN POWER TECHNOLOGY CO LTD
Current assignee: BEIJING TIANYUN POWER TECHNOLOGY CO LTD
Priority date: 2011-03-22
Filing date: 2011-03-22
Publication date: 2012-01-18
Anticipated expiration: 2021-03-22

Abstract

The utility model discloses a three-dimensional spiral plate type air-air heat exchanger, belonging to the field of the heat exchanger. The three-dimensional spiral plate type air-air heat exchanger comprises a three-dimensional spiral plate in an outer layer, a three-dimensional spiral plate in an inner layer, a cold fluid inlet tube, a hot fluid outlet tube, a hot fluid inlet tube, a cold fluid outlet tube, an upper cover plate, a lower cover plate, three-dimensional plate recesses, an outer end plate and an inner end plate. When flowing into the three-dimensional spiral plate type air-air heat exchanger via the hot fluid inlet tube, the hot air flows in a spiral flow passageway consisting of the three-dimensional spiral plate in the outer layer and the three-dimensional spiral plate in the inner layer and is exhausted from the hot fluid outlet tube, while the cold air flows from the cold fluid inlet tube, flows in the spiral flow passageway consisting of the three-dimensional spiral plate in the inner layer and the three-dimensional spiral plate in the outer layer and is exhausted from the cold fluid outlet tube. The cold and hot air can exchange heat by a layer of thin three-dimensional spiral plate; the three-dimensional spiral plate in the outer layer and the three-dimensional spiral plate in the inner layer are both provided with lots of three-dimensional plate recesses via machining, so the air-air heat exchange can be enhanced greatly.

Description

The board-like gas-to-gas heat exchanger of three-dimensional spiral

Technical field:

Title of the present invention is the board-like gas-to-gas heat exchanger of three-dimensional spiral, belongs to heat exchanger field.It comprises outer three-dimensional spiral plate, internal layer spiral shell three-dimensional spiral plate, cold fluid inlet tube, hot fluid outlet, hot fluid inlet tube, cold fluid outlet, upper cover plate, lower cover, three dimensional panel pit, outer end plate and inner end plate., hot gas and cold air gas-gas heat exchange is strengthened greatly when flowing through the hot and cold helical flow path of the board-like gas-to-gas heat exchanger of three-dimensional spiral by the three dimensional panel pit disturbance on the three-dimensional spiral plate.

Background technology:

At present wide model use large-scale gas--the gas heat exchanger has shell-and-tube, fin-tube type and heat pipe-type.Shell-and-tube gas--the gas heat exchanger volume is big, and heat-transfer pipe quantity is many, and heat transfer coefficient is not high; Fin-tube type gas--gas heat exchanger has just installed fin additional outside the heat transfer precipice pipe with shell-and-tube, though improved the coefficient of heat transfer, has also strengthened installation difficulty simultaneously; Heat pipe-type gas--the gas heat exchanger is easy for installation but high to the setting angle requirement, and heat will be through twice tube wall transmission, and thermal resistance is also bigger.

Summary of the invention:

In order to remedy the deficiency of above-mentioned prior art, the present invention will provide a kind of three-dimensional spiral simple in structure, easy for installation, that exchange capability of heat is strong board-like gas-to-gas heat exchanger.For this reason, the board-like gas-to-gas heat exchanger of three-dimensional spiral should comprise outer three-dimensional spiral plate 1, internal layer spiral shell three-dimensional spiral plate 2, cold fluid inlet tube 3, hot fluid outlet 4, hot fluid inlet tube 5, cold fluid outlet 6, upper cover plate 7, lower cover 8, three dimensional panel pit 9, outer end plate 10 and inner end plate 11.Outer three-dimensional spiral plate 1 is outside 5mm～200mm spacing is wrapped in internal layer three-dimensional spiral plate 2; And the Zhou Jing of outer three-dimensional spiral plate 1 dwindles from outside to inside gradually; Until developing into internal layer spiral shell three-dimensional spiral plate 2, but intersection still remains with the circular space of 5mm～400mm.The Zhou Jing of internal layer three-dimensional spiral plate 2 also correspondingly dwindles gradually, and ties up spiral plate 1 across 5mm～200mm spacing, until crossing with circular arc with outer three-dimensional spiral plate 1 and forming outer three-dimensional spiral plate 1 with skin.Fixed by 7 sealings of a upper cover plate by outer three-dimensional spiral plate 1 with the spirochetal top of 2 coileds of internal layer spiral shell three-dimensional spiral plate; Sealing is consolidated with outer end plate 10 on the initial end face of outer three-dimensional spiral plate 1 and internal layer spiral shell three-dimensional spiral plate 2; Have through hole on the outer end plate 10, the front end of cold fluid inlet tube 3 inserts in the hole and fixed UNICOM; The corresponding position sealing of the initiating terminal of internal layer spiral shell three-dimensional spiral plate 2 and outer three-dimensional spiral plate 1 second circle is consolidated with inner end plate 11, has through hole on the inner end plate 11, and the front end of hot fluid outlet 4 inserts in the hole and fixed UNICOM.Outer three-dimensional spiral plate and internal layer spiral shell three-dimensional spiral plate thickness are 1mm～20mm, roll out on the plate by 10mm～100mm spacing to be staggered, and the degree of depth is circle or the oblong pits of 2mm～10mm, and pit can not roll to be worn, and pit does not penetrate wooden partition.

Outer three-dimensional spiral plate 1 is also fixed by 8 sealings of a lower cover with the spirochetal bottom of 2 coileds of internal layer spiral shell three-dimensional spiral plate; With respect to the end of outer three-dimensional spiral plate 1, upper cover plate 7 all has a through hole with lower cover 8 at the center of upper cover plate 7 and lower cover 8, and fixed and UNICOM hot fluid inlet tube 5 each in the hole; With internal layer three-dimensional spiral plate 2 terminal corresponding positions, on upper cover plate 7 and lower cover 8, also respectively have a through hole, also fixed and UNICOM cold fluid outlet 6 in the hole.

Description of drawings:

Fig. 1. the board-like gas-to-gas heat exchanger of three-dimensional spiral is faced outline drawing;

Fig. 2. Fig. 1. the A-A view;

Fig. 3. the B-B of Fig. 2 is to view.

Wherein: the outer three-dimensional spiral plate of 1--; 2--internal layer three-dimensional spiral plate; 3--cold fluid inlet tube; 4--hot fluid outlet; 5--hot fluid inlet tube; 6--cold fluid outlet; The 7--upper cover plate; The 8--lower cover; 9--three dimensional panel pit; The 10--outer end plate; The 11--inner end plate.

The specific embodiment

Case study on implementation:

Fig. 1. also be 10000m ³The air preheater sketch map of/h.10000m per hour ³30 ℃ of cold airs flow into the board-like gas-to-gas heat exchanger of three-dimensional spirals from cold fluid inlet tube 3; Air flow to be flowed into from hot fluid inlet tube 5 in the process that cold fluid outlet 6 discharges and flow to hot fluid outlet 4 along the runner of internal layer three-dimensional spiral plate 2 and 1 composition of outer three-dimensional spiral plate along the runner of outer three-dimensional spiral plate 1 and 2 compositions of internal layer three-dimensional spiral plate and discharges; On three-dimensional spiral plate runner partition; 260 ℃ hot flue gas becomes 180 ℃ hot-air boiler of feeding burning to 30 ℃ air heat, and flue-gas temperature drops to 110 ℃ and is discharged into chimney.Since between air and the flue gas only alternating floor internal layer three-dimensional spiral plate 2 have countless three dimensional panel pits 9 to strengthen the disturbance of fluid on the three-dimensional spiral plate with outer three-dimensional spiral plate 1; Gu thermal resistance is very little, the effect that reach simple in structure, easy for installation, exchange capability of heat is strong.

Claims

1. the board-like gas-to-gas heat exchanger of three-dimensional spiral comprises outer three-dimensional spiral plate (1), internal layer spiral shell three-dimensional spiral plate (2), cold fluid inlet tube (3), hot fluid outlet (4), hot fluid inlet tube (5), cold fluid outlet (6), upper cover plate (7), lower cover (8), three dimensional panel pit (9), outer end plate (10) and inner end plate (11); It is characterized in that outer three-dimensional spiral plate (1) is outside 5mm～200mm spacing is wrapped in internal layer three-dimensional spiral plate (2); And the Zhou Jing of outer three-dimensional spiral plate (1) dwindles from outside to inside gradually; Until developing into internal layer spiral shell three-dimensional spiral plate (2), but intersection still remains with the circular space of 5mm～400mm; The Zhou Jing of internal layer three-dimensional spiral plate (2) also correspondingly dwindles gradually, and ties up spiral plate (1) across 5mm～200mm spacing, until crossing with circular arc with outer three-dimensional spiral plate (1) and forming outer three-dimensional spiral plate (1) with skin; Fixed by a upper cover plate (7) sealing with the spirochetal top of internal layer spiral shell three-dimensional spiral plate (2) institute coiled by outer three-dimensional spiral plate (1), outer three-dimensional spiral plate (1) is also fixed by a lower cover (8) sealing with the spirochetal bottom of internal layer spiral shell three-dimensional spiral plate (2) institute coiled; With respect to the end of outer three-dimensional spiral plate (1), upper cover plate (7) and lower cover (8) all have a through hole at the center of upper cover plate (7) and lower cover (8), and fixed and UNICOM each one of hot fluid inlet tube (5) in the hole; With the terminal corresponding position of internal layer three-dimensional spiral plate (2), on upper cover plate (7) and lower cover (8), also respectively have a through hole, also fixed and UNICOM cold fluid outlet (6) in the hole; Sealing is consolidated with outer end plate (10) on the initial end face of outer three-dimensional spiral plate (1) and internal layer spiral shell three-dimensional spiral plate (2), and outer end plate has through hole on (10), and the front end of cold fluid inlet tube (3) inserts in the hole and fixed UNICOM; The corresponding position sealing of the initiating terminal of internal layer spiral shell three-dimensional spiral plate (2) and outer three-dimensional spiral plate (1) second circle is consolidated with inner end plate (11), and inner end plate has through hole on (11), and the front end of hot fluid outlet (4) inserts in the hole and fixed UNICOM.

2. the board-like gas-to-gas heat exchanger of the three-dimensional spiral described in claim 1; It is characterized in that; Outer three-dimensional spiral plate and internal layer spiral shell three-dimensional spiral plate thickness are 1mm～20mm; Roll out on the plate by 10mm～100mm spacing and be staggered; The degree of depth is circle or the oblong pits of 2mm～10mm; Pit can not roll to be worn, and pit does not penetrate wooden partition.