Radiator for circulating cooling in vacuum dehydroxylation furnace

Abstract

The utility model belongs to the vacuum industry, and particularly relates to a radiator for circulating cooling in a vacuum dehydroxylation furnace, which comprises a metal cylinder and a radiating component, sealing covers are arranged at two ends of the cylinder, and a circulating cooling inlet and a circulating cooling outlet are arranged on the sealing covers; the heat dissipation assembly is installed in the barrel in a sealed mode in the length direction of the barrel, connecting openings are symmetrically formed in the barrel wall of the central axis in the length direction of the barrel, and connecting flanges are welded to the connecting openings. The heat dissipation assembly comprises two round steel plates and heat exchange tubes, the diameters of the round steel plates are consistent with the inner diameter of the cylinder, holes matched with the heat exchange tubes are formed in the surfaces of the round steel plates, and the heat exchange tubes are arranged in order, penetrate through the round steel plates and are fixedly welded to the round steel plates. Inert gas in the vacuum dehydroxylation furnace chamber is internally circulated, so that the temperature in the vacuum dehydroxylation furnace chamber is cooled, the cooling time is saved, and the production efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the vacuum industry, and more particularly relates to a radiator used for circulating cooling in a vacuum dehydroxylation furnace. Background Art

[0002] Hydroxyl defects in quartz products will affect the chemical stability, thermal properties, optical properties and mechanical properties of quartz glass. It is essential to remove or reduce the hydroxyl value of quartz glass in a vacuum dehydroxylation furnace.

[0003] Quartz products undergo dehydroxylation or reduction of their hydroxyl value in a vacuum dehydroxylation furnace. When the quartz product reaches the process temperature, the furnace chamber is filled with inert gas. Rapid forced cooling and removal from the furnace are necessary, requiring the use of a radiator. The high-temperature inert gas in the chamber is drawn in by a fan and passed through the radiator, which is filled with cooling water. The copper or aluminum finned tubes in the radiator increase the contact area with the high-temperature inert gas, achieving effective cooling. The gas is then blown back into the vacuum dehydroxylation furnace chamber by the fan, achieving a repetitive cycle of high-temperature inert gas. Depending on production needs, the number of copper or aluminum finned tubes can be increased to increase the cooling area, or radiators can be connected in series to reduce the rapid cooling time and improve production efficiency. Utility Model Content

[0004] The purpose of the utility model is to provide a radiator for circulating cooling in a vacuum dehydroxylation furnace. The device can circulate the inert gas in the vacuum dehydroxylation furnace chamber through an external cooling water circulation system, thereby cooling the temperature in the vacuum dehydroxylation furnace chamber, saving cooling time and improving production efficiency.

[0005] To achieve the above-mentioned object, the utility model provides the following technical solution: comprising a metal cylinder and a heat dissipation assembly, wherein sealing covers are provided at both ends of the cylinder, and the sealing covers are provided with a circulating cooling inlet and a circulating cooling outlet; the heat dissipation assembly is sealedly installed in the cylinder along the length direction of the cylinder, and connecting ports are symmetrically provided on the cylinder wall at the center axis of the length direction of the cylinder, and connecting flanges are welded to the connecting ports;

[0006] The heat dissipation assembly includes two round steel plates with diameters consistent with the inner diameter of the cylinder and heat exchange tubes. The surfaces of the round steel plates are provided with holes matching the heat exchange tubes. The heat exchange tubes are neatly arranged and pass through the round steel plates and are welded to them.

[0007] The circular steel plates of the heat dissipation assembly are welded to the cylinder wall, and a circulation chamber is formed between each circular steel plate and the sealing cover on that side, and a plurality of finned tubes are connected to the circulation chambers at both ends; at least one partition is provided in each circulation chamber to separate the aluminum finned tubes on that side, and the partitions in the circulation chambers on both sides are staggered.

[0008] Preferably, a movable flange is connected to the connecting flange.

[0009] Preferably, the partition separates the circulation chamber into two chambers, one large and one small.

[0010] Preferably, the circulating cooling inlet is connected to a water inlet pipe, the circulating cooling outlet is connected to a cooling tower, and the water outlet of the cooling tower is connected to the circulating cooling inlet.

[0011] Preferably, the heat exchange tube is a finned tube made of metal.

[0012] Compared with the prior art, the beneficial effects of the present invention are:

[0013] (1) The cylinder of the device is equipped with a number of finned tubes, and water circulation is achieved by installing baffles. The device is simpler, more effective and less prone to damage. In addition, the temperature in the dehydroxylation furnace can be better removed during the water recycling process, which can not only ensure work efficiency but also reduce water waste.

[0014] (2) This device is connected to the vacuum dehydroxylation furnace body flange and the fan duct through a movable flange, which improves installation efficiency and facilitates disassembly and maintenance during the installation process. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is the main view of the utility model;

[0016] Figure 2 It is a top view of the utility model;

[0017] Figure 3 This is a schematic diagram of the circular steel plate structure of the present utility model;

[0018] In the figure: 1. Cylinder; 2. Heat dissipation assembly; 201. Round steel plate; 2001. Hole; 202. Heat exchanger; 3. Sealing cover; 4. Circulating cooling inlet; 5. Circulating cooling outlet; 6. Connecting flange; 9. Circulating chamber; 10. Partition. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. It is obvious that the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0020] See also Figure 1 - Figure 3 As shown, the utility model provides the following technical solutions:

[0021] A radiator for circulating cooling in a vacuum dehydroxylation furnace, characterized in that it comprises a metal cylinder 1 and a heat dissipation assembly 2, wherein the cylinder 1 is formed by rolling a steel plate into the cylinder 1 by a plate rolling machine, and the inner and outer sides of the connecting seam are double-sided welded to form a preliminary cylinder 1, and sealing covers 3 are provided at both ends of the cylinder 1, and a circulating cooling inlet and a circulating cooling outlet are provided on the sealing cover 3, the circulating cooling inlet 4 is connected to a water inlet pipe, the circulating cooling outlet 5 is connected to a cooling tower, and the water outlet of the cooling tower is connected to the circulating cooling inlet 4; the heat dissipation assembly 2 is sealed and installed in the cylinder 1 along the length direction of the cylinder 1, and connecting ports are symmetrically provided on the cylinder wall at the central axis of the length direction of the cylinder 1, and a connecting flange 6 is welded on the connecting port, and a movable flange is connected to the connecting flange 6;

[0022] The heat dissipation assembly 2 includes two round steel plates 201 with a diameter consistent with the inner diameter of the cylinder 1 and heat exchange tubes 202. The heat exchange tubes 202 are finned tubes made of metal. The finned tubes can be made of copper tubes or aluminum materials. The surface of the round steel plates 201 is provided with holes 2001 that match the aluminum finned tubes. The aluminum finned tubes are neatly arranged and passed through the round steel plates 201 and are welded to them.

[0023] The circular steel plates of the heat dissipation assembly 2 are welded to the cylinder wall, and a circulation chamber 9 is formed between each circular steel plate and the sealing cover 3 on that side, and a number of finned tubes are connected to the circulation chambers 9 at both ends; each circulation chamber 9 is provided with at least one partition 10, and the more partitions 10 there are, the more times the water circulates in the device, but the circulating cooling outlet position needs to be adjusted according to the specific situation to separate the aluminum finned tubes on that side, and the partition divides the circulation chamber into two chambers, one large and one small, and the partitions 10 in the circulation chambers on both sides are staggered.

[0024] When the upper and lower baffles in the cylinder are respectively one piece: the cylinder is installed in the dehydroxylation furnace through a flange, and the upper and lower ends of the sealing cover of the device are provided with a circulating cooling inlet and a circulating cooling outlet. The two circulating chambers in the cylinder are divided into two chambers, one large and one small, by the baffles. The two chambers are arranged opposite to each other and are of the same size. When water is injected into the circulating cooling inlet, the water first flows into the small chamber, and the water flows through the small chamber through the finned tubes to the large chamber of the opposite circulating chamber. Since the large chamber has a larger space, the corresponding finned tubes are also more. The water then flows through the finned tubes of the large chamber to the large chamber of the opposite circulating chamber. The water in the large chamber then flows through the finned tubes to the small chamber with the circulating cooling outlet. A circulating cooling outlet is provided above the small chamber, and the water flows out through the circulating cooling outlet to form a water cycle.

[0025] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A radiator for circulating cooling in a vacuum dehydroxylation furnace, characterized by: The heat dissipation device comprises a metal cylinder (1) and a heat dissipation assembly (2). The cylinder (1) is provided with sealing covers (3) at both ends. The sealing covers (3) are provided with a circulating cooling inlet (4) and a circulating cooling outlet (5). The heat dissipation assembly (2) being sealed and installed in the cylinder (1) along the length direction of the cylinder (1), a connecting port being symmetrically provided on the cylinder wall at the center axis in the length direction of the cylinder (1), and a connecting flange (6) being welded on the connecting port; The heat dissipation assembly (2) comprises two circular steel plates (201) having a diameter consistent with the inner diameter of the cylinder (1) and heat exchange tubes (202); the surfaces of the circular steel plates (201) are provided with holes (2001) matching the heat exchange tubes; the heat exchange tubes (202) are neatly arranged and pass through the circular steel plates (201) and are welded and fixed thereto; The circular steel plates of the heat dissipation assembly (2) are welded to the cylinder wall, and a circulation chamber (9) is formed between each circular steel plate and the sealing cover (3) on that side. If the heat exchange tube (202) is connected to the circulation chambers (9) at both ends; at least one partition (10) is provided in each circulation chamber (9) to separate the heat exchange tube (202) on that side, and the partitions (10) in the circulation chambers (9) on both sides are staggered.

2. The radiator for circulating cooling in a vacuum dehydroxylation furnace according to claim 1, characterized in that: The connecting flange is connected with a movable flange.

3. The radiator for circulating cooling in a vacuum dehydroxylation furnace according to claim 1, characterized in that: The partition (10) divides the circulation chamber (9) into two chambers, one large and one small.

4. The radiator for circulating cooling in a vacuum dehydroxylation furnace according to claim 1, characterized in that: The circulating cooling inlet (4) is connected to a water inlet pipe, the circulating cooling outlet (5) is connected to a cooling tower, and the water outlet of the cooling tower is connected to the circulating cooling inlet (4).

5. The radiator for circulating cooling in a vacuum dehydroxylation furnace according to claim 1, characterized in that: The heat exchange tube (202) is a finned tube made of metal.

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