CN211204851U

CN211204851U - Heater for belt drier

Info

Publication number: CN211204851U
Application number: CN201921955751.3U
Authority: CN
Inventors: 周泉; 黄海龙; 李彦超
Original assignee: Jiangsu Baowei Mechanical And Electrical Technology Co ltd
Current assignee: Jiangsu Baowei Mechanical And Electrical Technology Co ltd
Priority date: 2019-11-13
Filing date: 2019-11-13
Publication date: 2020-08-07
Anticipated expiration: 2029-11-13

Abstract

The utility model discloses a heater for belt dryer, including two supports, it has a plurality of cooling tube to alternate between two supports, each cooling tube sets up with two supports are perpendicular, each cooling tube is provided with a plurality of layers along longitudinal direction, the common welding has the return bend between two adjacent cooling tubes in every layer, two adjacent cooling tubes of return bend intercommunication, every layer of cooling tube forms a heat dissipation nest of tubes jointly, the common fixedly connected with hot vapour of entrance point of a plurality of heat dissipation nest of tubes advances the pipe, the common fixedly connected with cold vapour exit tube of exit end of a plurality of heat dissipation nest of tubes, the welding has the multiunit fin on the pipe wall of each cooling tube, each group fin distributes along the axial direction equidistance of cooling tube, every group fin includes the fin that a plurality of distributes along cooling tube circumference equidistance, the transverse section shape of fin is triangle-shaped, wherein one side. The triangular radiating fins improve the outward transfer speed of heat in the heat exchange tubes.

Description

Heater for belt drier

Technical Field

The utility model relates to a heat exchanger field, concretely relates to heater for belt dryer.

Background

The heater for the belt dryer has wide application in the aspects of drying and evaporating medicinal materials, steam is introduced into the heater, and the steam and air in the drying room exchange heat to heat the temperature in the drying room and evaporate the medicinal materials.

The traditional heat exchanger comprises a heat exchange tube and supports at two ends of the heat exchange tube, wherein a plurality of annular radiating fins are welded on the peripheral wall of the heat exchange tube at equal intervals along the axial direction of the heat exchange tube, the diameter of the inner ring of each radiating fin is smaller than that of the outer ring of each radiating fin, the heat exchange tube is in contact with the inner ring of each radiating fin, and the speed of transferring the heat in the heat exchange tube to the outer ring of each radiating fin is low in the process of transferring the heat of the heat exchange tube.

Disclosure of Invention

In order to overcome the deficiencies in the prior art, the utility model provides a heater for belt dryer, it can improve the speed of the outside transmission of heat in the heat exchange tube.

In order to realize above-mentioned purpose, the utility model discloses a heater for belt dryer, including two supports, it has a plurality of cooling tube to alternate between two supports, each cooling tube sets up with two supports are perpendicular, each cooling tube is provided with a plurality of layers along longitudinal direction, the common welding has the return bend between two adjacent cooling tubes in every layer, two adjacent cooling tubes of return bend intercommunication, every layer of cooling tube forms a heat dissipation tube group jointly, the common fixedly connected with hot vapour of the entrance point of a plurality of heat dissipation tube groups advances the pipe, the common fixedly connected with cold vapour exit tube of the exit end of a plurality of heat dissipation tube groups, the welding has the multiunit fin on the pipe wall of each cooling tube, each group fin distributes along the axial direction equidistance of cooling tube, every group fin includes the fin that a plurality of distributes along cooling tube circumference equidistance, the transverse section shape of fin is triangle-shaped.

Furthermore, the shape of return bend is "U" shape, all welds in the inner wall of the both ends tip of return bend and has the guide ring piece, and two guide ring pieces are respectively relative gliding setting in the inner wall of two adjacent cooling tubes.

Furthermore, a communicating pipe is integrally arranged on the hot steam inlet pipe or the cold steam outlet pipe, a limiting ring is integrally arranged on the peripheral wall of the communicating pipe, the communicating pipe is inserted into the radiating pipe, a connecting sleeve is sleeved on the hot steam inlet pipe or the cold steam outlet pipe, and the connecting sleeve is in threaded connection with the outer wall of the radiating pipe.

Furthermore, a sealing ring is sleeved at the end part of the communicating pipe, a sealing groove is formed in the circumferential wall of the communicating pipe, and the longitudinal section of the sealing ring is T-shaped.

Furthermore, the guide ring pieces are elastic and expand along the axial direction of the radiating pipe.

Has the advantages that: the steam in the radiating pipe is contacted with one side of the triangular radiating fin, the contact area between the radiating pipe and the radiating fin is larger, the heat in the radiating pipe can be quickly transferred to the surface of the radiating fin, and the end part of the radiating fin is smaller in area, after the end part of the radiating fin absorbs the small heat at the contact end of the radiating fin and the radiating fin, the heat can quickly increase the temperature at the corner end of the radiating fin, and the corner end of the radiating fin can reach high temperature more quickly.

Drawings

The invention will be further described and illustrated with reference to the accompanying drawings.

FIG. 1 is a schematic structural view of the whole of the present embodiment;

FIG. 2 is a schematic structural view illustrating a connection relationship between the bent pipe and the heat dissipating pipe and the hot steam inlet pipe;

fig. 3 is a schematic structural view of the connection relationship between the communication pipe and the radiating pipe.

Reference numerals: 1. a support; 2. a radiating pipe; 3. bending the pipe; 4. a hot steam inlet pipe; 5. a cold steam outlet pipe; 6. a heat sink; 7. a guide ring sheet; 8. a communicating pipe; 9. a limiting ring; 10. connecting sleeves; 11. and (5) sealing rings.

Detailed Description

The technical solution of the present invention will be more clearly and completely explained by the description of the preferred embodiments of the present invention with reference to the accompanying drawings.

Example (b): as shown in fig. 1 and fig. 2, heater for band dryer, including two supports 1, it has a plurality of cooling tube 2 to alternate between two supports 1, each cooling tube 2 sets up with two supports 1 are perpendicular, each cooling tube 2 is provided with a plurality of layers along the longitudinal direction, the common welding has return bend 3 of U-shaped between two adjacent cooling tubes 2 of every layer, a plurality of cooling tubes 2 of every layer communicate each other through return bend 3, every layer of cooling tube 2 forms a cooling tube group jointly, the common fixedly connected with hot vapour inlet pipe 4 of the entrance point of a plurality of cooling tube groups, the common fixedly connected with cold vapour outlet pipe 5 of the exit end of a plurality of cooling tube groups, steam enters into each cooling tube 2 from hot vapour inlet pipe 4, after each cooling tube 2 carries out the heat exchange with the heat in the baking house, steam temperature in cooling tube 2 reduces and then discharges from cold vapour outlet pipe 5.

As shown in fig. 1 and fig. 2, a plurality of groups of fins are welded on the pipe wall of each radiating pipe 2, the fins of each group are equidistantly distributed along the axial direction of the radiating pipe 2, each group of fins includes a plurality of radiating fins 6 equidistantly distributed along the circumferential direction of the radiating pipe 2, the transverse cross-sectional shape of each radiating fin 6 is approximately triangular, one side of each triangular radiating fin 6 is welded on the circumferential wall of the radiating pipe 2, and one corner of each radiating fin 6 faces the radial direction of the radiating pipe 2.

As shown in fig. 1 and 2, since the steam in the radiating pipe 2 contacts one side of the triangular radiating fin 6, the contact area between the radiating pipe 2 and the radiating fin 6 is large, and the heat in the radiating pipe 2 can be rapidly transferred to the surface of the radiating fin 6. And because the area of the end part of the corner end of the radiating fin 6 is reduced, after the end part of the radiating fin 6 absorbs little heat at the contact end of the radiating fin 6 and the radiating pipe 2, the heat can quickly improve the temperature of the corner end of the radiating fin 6, the corner end of the radiating fin 6 can reach high temperature more quickly, according to the law that the heat is always transferred from an object with high temperature to low temperature, the tip end of the radiating fin 6 can start heat transfer to the air in the drying room more quickly, compared with the original traditional circular radiating fin 6, the size of the radiating fin 6 is reduced, and the temperature improvement speed of the outer diameter of the radiating fin 6 is improved. The radiating fins 6 extend along the radial direction of the radiating pipe 2, so that the radiating fins can be conveniently contacted with the air in the drying room as soon as possible while the air in the radial direction of the radiating pipe 2 absorbs heat, and the heat exchange efficiency between the heat in the radiating pipe 2 and the air in the drying room is further improved.

As shown in fig. 1 and 2, the guiding ring pieces 7 are welded to the inner walls of the two end portions of the bent pipe 3, the two guiding ring pieces 7 are respectively slidably disposed in the inner walls of the two adjacent heat dissipation pipes 2, and the two guiding ring pieces 7 are used for guiding the installation of the bent pipe 3. All there is elasticity for guide ring piece 7, and guide ring piece 7 need fill in cooling tube 2 with guide ring piece 7 inside shrink during 7 installations of guide ring piece along the axial expansion of cooling tube 2, and guide ring piece 7 is gone into in cooling tube 2 back deformation and is resumeed to the inner wall of 7 laminating cooling tubes of guide ring piece of being convenient for and to 3 installation directions along cooling tube 2 of return bend.

As shown in fig. 3, a communicating pipe 8 is integrally provided on the hot steam inlet pipe 4 or the cold steam outlet pipe 5, the end diameter of the communicating pipe 8 is smaller than the end diameter of the radiating pipe 2, the communicating pipe 8 is communicated with the hot steam inlet pipe 4 or the cold steam outlet pipe 5, a spacing ring 9 is integrally provided on the outer circumferential wall of the communicating pipe 8, the communicating pipe 8 is inserted into the radiating pipe 2, a connecting sleeve 10 is sleeved on the hot steam inlet pipe 4 or the cold steam outlet pipe 5, and the connecting sleeve 10 is in threaded connection with the outer wall of the radiating pipe 2 to fix the hot steam inlet pipe 4 and the radiating pipe 2.

As shown in fig. 3, a sealing ring 11 is fitted over an end of the communication pipe 8 to seal a gap between the hot steam inlet pipe 4 and the radiating pipe 2, a sealing groove is formed in a circumferential wall of the communication pipe 8, and a longitudinal section of the sealing ring 11 is shaped like a "T".

The above detailed description merely describes the preferred embodiments of the present invention and does not limit the scope of the present invention. Without departing from the design concept and spirit scope of the present invention, the ordinary skilled in the art should belong to the protection scope of the present invention according to the present invention provides the text description and drawings to the various modifications, replacements and improvements made by the technical solution of the present invention. The scope of protection of the present invention is determined by the claims.

Claims

1. The heater for the belt dryer is characterized by comprising two supports (1), wherein a plurality of radiating pipes (2) are inserted between the two supports (1), each radiating pipe (2) is perpendicular to the two supports (1), and each radiating pipe (2) is provided with a plurality of layers along the longitudinal direction, and the heater is characterized in that a bent pipe (3) is welded between every two adjacent radiating pipes (2) in each layer, the bent pipe (3) is communicated with the two adjacent radiating pipes (2), each layer of radiating pipe (2) forms a radiating pipe (2) group together, the inlet ends of the radiating pipe groups are fixedly connected with a hot steam inlet pipe (4) together, the outlet ends of the radiating pipe groups (2) are fixedly connected with a cold steam outlet pipe (5) together, a plurality of groups of fins are welded on the pipe wall of each radiating pipe (2), and the fins in each group are distributed along the axial direction of the radiating pipes (2) at equal intervals, each group of fins comprises a plurality of radiating fins (6) which are equidistantly distributed along the circumferential direction of the radiating pipe (2), the transverse section of each radiating fin (6) is triangular, and one side of each radiating fin (6) is welded on the circumferential wall of the radiating pipe (2).

2. The heater for the belt dryer as claimed in claim 1, wherein the bent pipe (3) is in a "U" shape, the inner walls of the two ends of the bent pipe (3) are welded with guide ring pieces (7), and two guide ring pieces (7) are respectively and slidably arranged in the inner walls of two adjacent heat dissipation pipes (2).

3. The heater for the belt dryer as claimed in claim 1, wherein a communicating pipe (8) is integrally provided on the hot steam inlet pipe (4) or the cold steam outlet pipe (5), a spacing ring (9) is integrally provided on a circumferential wall of the communicating pipe (8), the communicating pipe (8) is inserted into the heat dissipating pipe (2), a connecting sleeve (10) is sleeved on the hot steam inlet pipe (4) or the cold steam outlet pipe (5), and the connecting sleeve (10) is in threaded connection with an outer wall of the heat dissipating pipe (2).

4. The heater for the belt dryer as claimed in claim 3, wherein the end of the communicating pipe (8) is sleeved with a sealing ring (11), the peripheral wall of the communicating pipe (8) is provided with a sealing groove, and the longitudinal section of the sealing ring (11) is T-shaped.

5. The heater for a belt dryer as claimed in claim 2, wherein the guide ring pieces (7) are all elastic, and the guide ring pieces (7) are expanded in the axial direction of the radiating pipe (2).