CN212585499U - Water cooling structure of high-temperature dust-free oven - Google Patents

Abstract

The utility model relates to a water-cooling structure of dustless oven of high temperature, including the oven box, locate the circulation wind channel in the oven box and locate the water cooling plant in the circulation wind channel, water cooling plant includes cooling tube group and locates water inlet and delivery port on the oven box shell lateral wall, cooling tube group intercommunication sets up between water inlet and delivery port, cooling tube group is the slope setting, just the one end that cooling tube group is close to the water inlet is higher than the one end that is close to the delivery port, cooling tube group includes first condenser tube and second condenser tube, first condenser tube and second condenser tube are the coiled pipe, and first condenser tube and the crisscross distribution of second condenser tube. The utility model discloses a predominant use provides a replace the air cooling mode among the prior art, and structural design is ingenious reasonable, and the heat transfer rate is higher, the water-cooling structure of the dustless oven of high temperature that cooling rate is faster.

Description

Water cooling structure of high-temperature dust-free oven

Technical Field

The utility model relates to a dustless oven of high temperature especially relates to a water-cooling structure of dustless oven of high temperature.

Background

The dustless oven is also called dustless industrial oven and clean industrial oven. Is a special clean dust-free drying device for providing high-temperature purifying environment. The air in the oven is closed and self-circulated, and is repeatedly filtered by a high-temperature-resistant high-efficiency air filter (100-grade), so that the oven working chamber is in a dust-free state. The working chamber of the dust-free oven is of a stainless steel structure. The temperature in the working chamber is automatically controlled by a temperature controller, and an automatic constant temperature and time control device is also arranged, and an overtemperature automatic power cut and alarm circuit is additionally arranged. Present general dustless oven, the cooling method generally adopts the air-cooling, set up nitrogen gas cooling device in the inside circulation wind channel of oven, during the stoving, the temperature of the electric heater heating circulation wind in the oven makes its whole oven inside evenly heat, use the back of accomplishing, reuse nitrogen gas cooling device to hot-blast processing of cooling down, make it fall to the uniform temperature, and flow and then cool down to whole oven inside in the circulation wind channel, however because its cooling process time is limited, can't reduce the temperature to the room temperature, the cooling effect can't satisfy the operation requirement, consequently, need further improve cooling structure.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, the utility model aims to provide a replace the air cooling mode among the prior art, structural design is ingenious and reasonable, the heat exchange rate is higher, and the water-cooling structure of the dustless oven of high temperature that cooling rate is faster.

In order to solve the above problem, the utility model discloses the technical scheme who adopts as follows:

the utility model provides a water-cooling structure of dustless oven of high temperature, includes the oven, locates the circulation wind channel in the oven and locates the water cooling plant in the circulation wind channel, water cooling plant includes the cooling tube bank and locates water inlet and delivery port on the oven shell lateral wall, the cooling tube bank intercommunication sets up between water inlet and delivery port, the cooling tube bank is the slope setting, just the one end that the cooling tube bank is close to the water inlet is higher than the one end that is close to the delivery port, the cooling tube bank includes first condenser tube and second condenser tube, first condenser tube and second condenser tube are the coiled pipe, and first condenser tube and the crisscross distribution of second condenser tube.

Further, the inclination angle of the cooling pipe group is 30-45 degrees compared with the horizontal plane.

Furthermore, the first cooling water pipe and the second cooling water pipe are identical in structure, the cross section of the first cooling water pipe is of a waist-shaped structure, and two opposite sides of the first cooling water pipe are inwards recessed to form a recessed portion.

Furthermore, more than two flow blocking strips are annularly arranged on the inner wall of the first cooling water pipe at intervals, and the flow blocking strips are distributed along the extending direction of the first cooling water pipe.

Furthermore, the cross section structure of the flow blocking strip is trapezoidal, and one end close to the inner wall is a large end.

Furthermore, a plurality of radiating fins which are uniformly distributed at intervals are fixedly arranged on the outer side wall of the first cooling water pipe, the thickness of each radiating fin is 1-3mm, and the distance between every two adjacent radiating fins is equal to or larger than 5 mm.

Compared with the prior art, the beneficial effects of the utility model reside in that: the utility model replaces the air cooling method in the prior art with the water cooling method, the hot air in the circulating air duct can be cooled rapidly and effectively, and the cooled circulating air flows in the circulating air duct to cool the whole oven; the cooling pipe group is obliquely arranged, and the distribution and the structure of the first cooling water pipe and the second cooling water pipe in the cooling pipe group are optimized, so that the heat exchange efficiency is improved to the maximum extent, and the cooling efficiency is improved; the practicability is strong, the service life is long, the manufacturing cost is low, and the manufacturing process is simple.

Drawings

FIG. 1 is a block diagram of the present invention;

FIG. 2 is a layout structure diagram of the water cooling device of the present invention;

FIG. 3 is a cross-sectional view of a first cooling water pipe according to the present invention;

wherein, 1, an oven box body; 2. a circulating air duct; 3. a water cooling device; 31. a water outlet; 32. a cooling tube bank; 33. a water inlet; 34. a first cooling water pipe; 341. a flow-blocking strip; 342. a recessed portion; 343. a heat dissipating fin; 35. and a second cooling water pipe.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

It should be noted that, in the description of the technical solutions of the present invention, some directional words, such as "front", "rear", "upper", "lower", "top", "bottom", "inner", "outer", etc., used for clearly describing the technical features of the present invention are all in terms of the orientation of the drawings of the present invention.

Examples

As shown in fig. 1, the water cooling structure of the high-temperature dust-free oven of the present embodiment includes an oven body 1, a circulating air duct 2 disposed in the oven body 1, and a water cooling device 3 disposed in the circulating air duct 2, wherein an electric heater is further disposed in the circulating air duct 2 in the oven body 1, when the electric heater works, air in the circulating air duct 2 is heated and heated to become hot air, and the hot air circulates in the circulating air duct 2 to uniformly heat the interior of the oven body 1, which is beneficial to improving the baking effect; when the electric heater stops working, the water cooling device 3 starts to operate, the cooling water flows to take away heat in the circulating air duct 2, the temperature of the hot air gradually decreases to become cooling air, and then the interior of the oven body 1 is uniformly cooled, so that the cooling effect is improved. The water cooling device 3 is located in the lower air duct of the circulating air duct 2, namely the bottom of the oven body 1. The water cooling device 3 comprises a cooling pipe group 32, and a water inlet 33 and a water outlet 31 which are arranged on the side wall of the shell of the oven body 1, wherein the water inlet 33 is communicated with a cooling water input device outside the oven body 1 so as to be convenient for introducing cooling water, and the water outlet 31 is communicated with a cooling water recovery device outside the oven body 1 so as to be convenient for collecting and recycling the cooling water, so that the resource waste is reduced. The cooling tube set 32 is arranged between the water inlet 33 and the water outlet 31 in a communicating manner, cooling water enters the cooling tube set 32 from the water inlet 33, flows in the cooling tube set 32 and takes away heat, and finally is discharged from the water outlet 31. The cooling pipe set 32 of this embodiment is disposed in an inclined manner, and one end of the cooling pipe set 32 close to the water inlet 33 is higher than one end close to the water outlet 31, and an inclination angle of the cooling pipe set 32 relative to the horizontal plane is 30-45 degrees, in this embodiment, the inclination angle is preferably 30 degrees.

As shown in fig. 2, the cooling tube group 32 of the present embodiment includes a first cooling water tube 34 and a second cooling water tube 35, both the first cooling water tube 34 and the second cooling water tube 35 are serpentine tubes, and the first cooling water tube 34 and the second cooling water tube 35 are distributed in a staggered manner, so that the serpentine tubes can increase the residence time of the cooling water in the circulating air duct 2, and absorb more heat energy; adopt first condenser tube 34 and second condenser tube 35's crisscross distribution structure, can reduce the radian of buckling of coiled pipe under the condition that promotes the cooling effect, to the impact of coiled pipe inner wall when reducing rivers and turning, rivers are more smooth and easy, and first condenser tube 34 and second condenser tube 35's life lengthens greatly simultaneously. The first cooling water pipe 34 of this embodiment is the same with second cooling water pipe 35 structure, as shown in fig. 3, the cross sectional structure of first cooling water pipe 34 is oval structure, and both ends adopt the ring structure that the radius is the same about, and the centre of a circle distance of two rings is 3 times its radius, and the upper and lower relative both sides at middle part are inwards sunken to form depressed part 342, and the minimum interval between two depressed parts 342 is more than or equal to the radius of ring structure adopts this kind of structure, and structural strength is high, and has increased the heat exchange rate.

In addition, the inner wall of the first cooling water pipe 34 of the present embodiment is provided with more than two choke strips 341 at intervals, the choke strips 341 are distributed along the extending direction of the first cooling water pipe 34, and specifically, in the present embodiment, the inner walls of the circular ring structures at the two ends of the first cooling water pipe 34 are respectively provided with three choke strips 341. The cross section structure of choked flow strip 341 is trapezoidal, and the one end that is close to the inner wall is the main aspects, and trapezoidal edges and corners all adopt the circular arc transition in order to reduce impact and wearing and tearing. The flow blocking strips 341 are added to further increase the flow change of the cooling water and improve the heat exchange rate. The outer side wall of the first cooling water pipe 34 is fixedly provided with a plurality of radiating fins 343 which are uniformly distributed at intervals, the thickness of the radiating fins 343 is 1-3mm, and the distance between every two adjacent radiating fins 343 is equal to or larger than 5 mm. Specifically, a plurality of radiating fins 343 are respectively fixed on the outer side walls of the left end and the right end of the first cooling water pipe 34 and are evenly distributed at intervals, the radiating fins 343 are of a fan-shaped structure, the outer edge arcs of the radiating fins 343 and the outer edge arc surfaces of the first cooling water pipe 34 at the connection part are concentrically arranged, the thickness of the radiating fins 343 is 2mm, the heat transfer speed is the fastest under the condition that the structural strength requirement is met, the heat transfer rate can be greatly increased, and the cooling rate is further increased.

The water cooling structure of the high-temperature dust-free oven of the utility model replaces the air cooling mode in the prior art with the water cooling mode, so that the hot air in the circulating air duct 2 can be cooled quickly and effectively, and the cooled circulating air flows in the circulating air duct to cool the inside of the whole oven; by obliquely arranging the cooling pipe group 32 and simultaneously optimizing the distribution and the structure of the first cooling water pipe 34 and the second cooling water pipe 35 in the cooling pipe group 32, the heat exchange efficiency is improved to the maximum extent, and the cooling efficiency is further improved; the practicability is strong, the service life is long, the manufacturing cost is low, and the manufacturing process is simple.

Various other modifications and changes may be made by those skilled in the art based on the above-described technical solutions and concepts, and all such modifications and changes are intended to fall within the scope of the claims.

Claims (6)

1. The utility model provides a water-cooling structure of dustless oven of high temperature which characterized in that: comprises an oven body (1), a circulating air duct (2) arranged in the oven body (1) and a water cooling device (3) arranged in the circulating air duct (2), the water cooling device (3) comprises a cooling pipe group (32), a water inlet (33) and a water outlet (31) which are arranged on the side wall of the outer shell of the oven body (1), the cooling pipe group (32) is communicated and arranged between the water inlet (33) and the water outlet (31), the cooling pipe group (32) is obliquely arranged, and one end of the cooling pipe group (32) close to the water inlet (33) is higher than one end close to the water outlet (31), the cooling pipe group (32) comprises a first cooling water pipe (34) and a second cooling water pipe (35), the first cooling water pipe (34) and the second cooling water pipe (35) are both coiled pipes, and the first cooling water pipes (34) and the second cooling water pipes (35) are distributed in a staggered manner.

2. The water cooling structure of a high temperature dust-free oven as claimed in claim 1, wherein: the inclination angle of the cooling pipe group (32) is 30-45 degrees compared with the horizontal plane.

3. The water cooling structure of the high temperature dust-free oven as claimed in claim 2, wherein: the first cooling water pipe (34) and the second cooling water pipe (35) are identical in structure, the cross section of the first cooling water pipe (34) is of a kidney-shaped structure, and two opposite sides of the first cooling water pipe are inwards sunken to form a sunken part (342).

4. The water cooling structure of the high temperature dust-free oven as claimed in claim 3, wherein: more than two choke strips (341) are annularly arranged on the inner wall of the first cooling water pipe (34) at intervals, and the choke strips (341) are distributed along the extending direction of the first cooling water pipe (34).

5. The water cooling structure of the high temperature dust-free oven as claimed in claim 4, wherein: the cross section structure of the flow blocking strip (341) is trapezoidal, and one end close to the inner wall is a large end.

6. The water cooling structure of a high temperature dust-free oven as claimed in claim 3 or 5, wherein: the outer side wall of the first cooling water pipe (34) is fixedly provided with a plurality of radiating fins (343) which are uniformly distributed at intervals, the thickness of each radiating fin (343) is 1-3mm, and the distance between every two adjacent radiating fins (343) is equal to or larger than 5 mm.

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