CN216236668U - Cooling device of plate glass annealing kiln - Google Patents

Abstract

The utility model discloses a cooling device of a plate glass annealing kiln, which comprises cooling pipes arranged above a glass belt, wherein a water cooling pipeline is arranged in each cooling pipe, the water cooling pipelines and the cooling pipes are fixed by arranging a support frame, the top of one end of each cooling pipe is also provided with an air pipe inlet, the bottom of each cooling pipe, which faces the glass belt, is provided with a plurality of air holes, cooling air is input into the cooling pipes from the air pipe inlets, and the cooling air in the cooling pipes is matched with cooling water in the water cooling pipelines for heat exchange, so that the temperature of the cooling air in the cooling pipes is reduced. The utility model has good cooling effect, effectively improves the product quality, reduces the material requirement of the water cooling pipeline and saves the cost.

Description

Cooling device of plate glass annealing kiln

Technical Field

The utility model relates to the technical field of glass production, in particular to a cooling device of a plate glass annealing kiln.

Background

The flat glass is generally produced by the float method, and the glass ribbon enters an annealing kiln for cooling and annealing after being formed in a tin bath. The existing float production process usually adopts an air cooling mode to carry out cooling annealing on the plate glass, the mode needs to adopt a high-power fan and densely arranged air outlets, and in order to achieve the required cooling rate, the cooling air pressure is larger, and the method has the defects of easily forming ripple defects on the surface of the glass, aggravating the whole dust environment of an annealing kiln, influencing the quality of glass products, bringing larger noise and the like.

Except for the air cooling mode, a water cooling mode is adopted, but the complete water cooling mode has high requirements on the material of the cooling water pipe, the water pipe can withstand long-term corrosion of water at high temperature, the service life of the water pipe is short, and the cost is high. In addition, the cooling efficiency of the water pipe is low, the uniformity is poor, and the temperature difference between different areas of the glass ribbon is large, so that an additional heating device is required, and the energy consumption and the cost are increased.

The prior annealing kiln cooling device always has the following problems:

1. the air pressure is larger when single air cooling is adopted, and the surface of the glass easily forms ripple defects when the air cooling is adopted, aggravates the whole dust environment of the annealing kiln and influences the quality of the glass product, easily causes the defects on the surface of the glass and influences the quality of the produced product.

2. When single water-cooling is adopted, the temperature difference of different areas is large, the water-cooling is not uniform enough, the cooling effect is poor, the requirement on the material of the water pipe is high when the water-cooling is used, and a heating device is required to be additionally added, so that the energy consumption and the cost are increased.

SUMMERY OF THE UTILITY MODEL

The utility model provides a cooling device of a plate glass annealing kiln, which aims to solve the problems in the background technology.

In order to solve the problems, the utility model adopts the technical scheme that:

the utility model provides a plate glass annealing kiln cooling device, is including setting up the cooling tube in glass area top, still all be equipped with the water-cooling pipeline in the cooling tube, fix through setting up the support frame between water-cooling pipeline and the cooling tube, wherein, the top of cooling tube wherein one end still is equipped with an tuber pipe entry, the bottom in the orientation glass area of cooling tube all is equipped with a plurality of gas pockets, the tuber pipe entry inputs the cooling air towards the cooling tube, and the cooling air in the cooling tube and the cooling water cooperation heat transfer in the water-cooling pipeline make cooling tube cooling air temperature reduce.

Preferably, each group of support frames comprises three support blocks, each support block is of an isosceles trapezoid structure, and the three support blocks are distributed along the outer peripheral surface of the water cooling pipeline in a triangular shape and fixed with the inner peripheral surface of the cooling pipe.

Preferably, the support frames are at least two groups and are arranged at the same interval along the length direction of the water cooling pipeline.

Preferably, the number of the cooling pipes is at least two, and the air holes are linearly arranged along the length direction of each cooling pipe, so that the glass is cooled more uniformly.

Preferably, a fan is installed at one end of each air pipe inlet, which is far away from the cooling pipe, a water pump is installed at the extending end of each water cooling pipe, a water outlet is formed at one end of each air pipe inlet, which is far away from the fan, and a recovery water tank for recovering cooling water is further arranged at one end of each water cooling pipe, which is far away from the water pump.

Compared with the prior art, the utility model has the following beneficial effects:

1. through setting up water-cooling pipeline in the cooling tube, the cooling tube passes through the tuber pipe entry and inputs the cooling air, and the cooling air in the cooling tube and the cooling water cooperation heat transfer in the water-cooling pipeline make the cooling air temperature lower, can effectively reduce the demand of wind pressure, reduce the dust environment of annealing kiln, the temperature of regulation cooling air that can be fine reduces the wind pressure, can effectively prevent defects such as ripple from appearing in the glass surface, has guaranteed the quality of product.

2. The cooling tube cooperates the water-cooling pipeline to carry out the heat transfer when using, sets up a plurality of gas pockets simultaneously and carries out even cooling towards the glass area in the bottom of cooling tube, can effectively be to glass even cooling, and the cooling effect is good, and the material requirement of water pipe reduces simultaneously to reach the effect of reduce cost and environmental protection.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic cross-sectional view of the present invention;

FIG. 3 is a schematic view of the stand of the present invention;

FIG. 4 is a schematic view of the effect of the present invention and an annealing furnace;

1-cooling pipe, 2-water cooling pipeline, 3-air pipe inlet, 4-glass belt, 5-support frame, 51-support block, and 6-air hole.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-4, a cooling device for a plate glass annealing furnace comprises a cooling pipe 1 arranged above a glass belt 4, wherein water cooling pipelines 2 are arranged in the cooling pipe 1, the water cooling pipelines 2 and the cooling pipe 1 are fixed by arranging a support frame 5, an air pipe inlet 3 is arranged at the top of one end of the cooling pipe 1, a plurality of air holes 6 are arranged at the bottom of the cooling pipe 1 facing the glass belt 4, cooling air is input into the cooling pipe 1 from the air pipe inlet 3, and the cooling air in the cooling pipe 1 and the cooling water in the water cooling pipelines 2 are matched for heat exchange to reduce the temperature of the cooling air in the cooling pipe 1.

Each group of support frames 5 comprises three support blocks 51, each support block 51 is of an isosceles trapezoid structure, and the three support blocks 51 are distributed and arranged in a triangular shape along the outer peripheral surface of the water cooling pipeline 2 and fixed with the inner peripheral surface of the cooling pipe 1.

The number of the support frames 5 is at least two, and the support frames 5 are arranged at the same interval along the length direction of the water cooling pipeline 2.

At least two cooling tubes 1 are arranged in parallel, and the air holes 6 are linearly arranged along the length direction of each cooling tube 1, so that the glass is cooled more uniformly.

Each the fan is all installed to the one end that cooling tube 1 was kept away from to tuber pipe entry 3, each the one end that water-cooling pipeline 2 is close to tuber pipe entry 3 all extends outside cooling tube 1, and each the water pump is all installed to the end of extending of water-cooling pipeline 2, the one end that the fan was kept away from to tuber pipe entry 3 is the air outlet, the one end that water-cooling pipeline 3 kept away from the water pump still is equipped with a recovery water tank who is used for retrieving the cooling water.

The utility model adopts a mixed cooling mode of water cooling and air cooling, and adds the water cooling pipeline 2 in the cooling pipe 1, so that the power of the fan used by the cooling pipe 1 is greatly reduced, the ripple defect formed on the surface of glass is reduced and even avoided, the dust in the annealing kiln is reduced, the environmental noise is reduced, and the cooling efficiency is improved. Due to the existence of the water-cooling pipeline 2, the temperature of the cooling air can be well adjusted by matching the cooling water in the water-cooling pipeline 2 with the cooling air in the cooling pipe 1, so that the cooling rate of the glass ribbon 4 is adjusted to a proper range, the precision annealing is realized to a certain extent, and the probability of the problems of cracking, warping, longitudinal twisting deviation and the like caused by the annealing of the glass in the production process is reduced. At the outside cooling tube 1 of cover of water-cooling pipeline 2, high temperature is to water-cooling pipeline 2 accelerated corrosion's influence in can partly isolated kiln, reduces the material requirement to water-cooling pipeline 2, prolongs water-cooling pipeline 2's life by a wide margin, avoids appearing because of water-cooling pipeline 2 drips the phenomenon that influences production, can also improve refrigerated efficiency and homogeneity simultaneously.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims (5)

1. The utility model provides a sheet glass annealing kiln cooling device, is including setting up cooling tube (1) in glass area (4) top, its characterized in that: still be equipped with water-cooling pipeline (2) in cooling tube (1), fix through setting up support frame (5) between water-cooling pipeline (2) and cooling tube (1), wherein, cooling tube (1) wherein the top of one end still is equipped with an tuber pipe entry (3), the bottom towards glass area (4) of cooling tube (1) all is equipped with a plurality of gas pockets (6), tuber pipe entry (3) are towards input cooling air in cooling tube (1), cooling air in cooling tube (1) and the cooling water cooperation heat transfer in water-cooling pipeline (2), make cooling tube (1) cooling air temperature reduce.

2. A cooling apparatus for a sheet glass annealing lehr according to claim 1, wherein: each group of support frame (5) comprises three support blocks (51), each support block (51) is of an isosceles trapezoid structure, and the three support blocks (51) are distributed along the outer peripheral surface of the water cooling pipeline (2) in a triangular shape and fixed with the inner peripheral surface of the cooling pipe (1).

3. A cooling apparatus for a sheet glass annealing lehr according to claim 1, wherein: the support frames (5) are at least two groups and the support frames (5) are arranged at the same interval along the length direction of the water cooling pipeline (2).

4. A cooling apparatus for a sheet glass annealing lehr according to claim 1, wherein: the cooling pipes (1) are arranged in parallel, and the air holes (6) are linearly arranged along the length direction of each cooling pipe (1).

5. A cooling apparatus for a sheet glass annealing lehr according to claim 1, wherein: each fan is installed to the one end that cooling tube (1) was kept away from in tuber pipe entry (3), each water-cooling pipeline (2) are close to the one end of tuber pipe entry (3) and all extend outside cooling tube (1), and each the water pump is all installed to the extension end of water-cooling pipeline (2).

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