Platinum channel cooling pipe structure

Abstract

The utility model discloses a platinum channel cooling pipe structure, which comprises a corrugated pipe, a straight pipe and a plurality of blades, and is characterized in that the straight pipe is communicated with the corrugated pipe; the plurality of blades are uniformly fixed in an inner cavity of the straight pipe, each blade comprises a first sub-blade and a second sub-blade which are connected with each other, and the included angle between the first sub-blade and the second sub-blade is 30-150 degrees. When high-temperature molten glass passes through the cooling pipe, firstly, the molten glass enters the corrugated pipe to be cooled, then the molten glass enters the straight pipe to be cooled, due to the fact that the multiple blades exist in the straight pipe, cooling of the molten glass is uniform in the cross section direction of the straight pipe, and when the molten glass enters the stirring tank after being cooled through the straight pipe, the molten glass enters the stirring tank; the temperature of the molten glass in the pipe diameter section direction has no large difference, and the viscosity of the molten glass is basically the same, so that the pressure of the molten glass on a stirring system after entering the stirring tank is small.

Description

Technical Field

[0001] The present application relates to the technical field of glass manufacturing, and in particular to a platinum channel cooling tube structure. Background Art

[0002] Production lines for high-quality special optical glass, electronic glass, high-temperature refractory glass, etc. generally use platinum channels as key devices for glass clarification, cooling, and homogenization. The platinum channel structure of this device is generally composed of a heating tank, a clarification tank, a cooling pipe, a stirring tank, and a discharging system. The heating tank realizes the heating function before the glass liquid is clarified, the clarification tank realizes the function of clarifying bubbles in the glass liquid, the cooling pipe realizes the function of cooling the glass liquid from the highest clarification temperature to the stirring temperature, the stirring tank eliminates the stripes through the rotation of the agitator installed in the tank to achieve the purpose of glass homogenization, and the discharging system consists of a discharging pipe or a discharging tank (such as an overflow brick tank, etc.) to realize the discharging and molding production of the glass liquid.

[0003] Platinum channel cooling tubes are generally designed to be long and thick because they need to achieve a large range of cooling, which results in a large amount of platinum used, an increase in the control section, and an increase in the expansion and contraction of platinum during the heating and cooling process. This places high demands on the furnace structure design that protects the platinum channel. It often happens that the furnace structure design cannot well match the expansion or contraction of platinum in the cooling tube during the heating and cooling process, causing damage to the platinum channel, thereby reducing the service life of the cooling tube. At the same time, the cooling of the glass liquid in the cooling tube is achieved by the cooling tube dissipating heat outward, which results in the glass liquid in the middle of the cooling tube having a high temperature, low viscosity, and fast flow, while the glass liquid at the edge has a low temperature, high viscosity, and slow flow. This flow mode results in a significant difference in the temperature of the glass liquid in the cooling tube in the direction of the tube diameter cross section when it enters the stirring tank, and the corresponding viscosity of the glass liquid is also different. Such glass liquid puts a lot of pressure on the stirring system after entering the stirring tank, and the corresponding amount of platinum used is also large, and it will also occupy a large amount of production line investment.

[0004] The above contents are only used to assist in understanding the technical solution of the present application and do not constitute an admission that the above contents are prior art. Utility Model Content

[0005] The main purpose of the present application is to provide a platinum channel cooling tube structure, aiming to solve the problem of uneven cooling effect of the existing platinum channel cooling tube structure on the glass liquid.

[0006] To achieve the above-mentioned purpose, the present application provides a platinum channel cooling tube structure, including a corrugated tube, a straight tube and a plurality of blades, wherein the straight tube is connected to the corrugated tube; the plurality of blades are evenly fixed to the inner cavity of the straight tube, and each of the blades includes a first sub-blade and a second sub-blade connected to each other, and the angle between the first sub-blade and the second sub-blade is 30° to 150°.

[0007] Optionally, the bellows is a continuous corrugated structure, the corrugations on the bellows include crests and troughs, and the distance from the crest to the trough is 2 mm to 10 mm.

[0008] Optionally, the ratio of the corrugation length to the corrugation height of the corrugated tube is 2-5.

[0009] Optionally, the corrugated pipe comprises a plurality of segmented continuous corrugated pipes, and the length of each segment of the continuous corrugated pipe is 100 mm to 300 mm.

[0010] Optionally, the inner diameter of the straight pipe is equal to the minimum inner diameter of the corrugated pipe.

[0011] Optionally, the ratio of the length of each blade to the inner diameter of the straight tube is 1-3.

[0012] Optionally, the planes where the ends of two adjacent blades are located are perpendicular to the length direction of the straight tube.

[0013] Optionally, the angle between two adjacent blades is 30° to 90°.

[0014] Optionally, the number of the blades arranged in the inner cavity of the straight tube is 2 to 10.

[0015] Optionally, among the plurality of blades, the distance between the end of the blade located at the end away from the corrugated tube and the end of the straight tube is d, the inner diameter of the straight tube is a, and 1≤d / a≤3.

[0016] A platinum channel cooling tube structure is proposed in an embodiment of the present application. When high-temperature molten glass passes through the cooling tube, first, the molten glass enters the bellows for cooling, and then the molten glass enters the straight tube for cooling. Since there are multiple blades in the straight tube, the cooling of the molten glass is relatively uniform in the cross-sectional direction of the straight tube. When the molten glass enters the stirring tank after cooling through the straight tube, there is no significant difference in the temperature of the molten glass in the cross-sectional direction of the tube diameter, and the viscosity of the molten glass is basically the same, so the pressure of the molten glass on the stirring system is relatively small after entering the stirring tank. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A schematic diagram of a platinum channel cooling tube structure provided in an embodiment of the present application;

[0018] Figure 2 for Figure 1 Schematic diagram of the three-dimensional structure of the blade;

[0019] Figure 3 for Figure 1 Schematic diagram of the three-dimensional structure of the bellows;

[0020] Among them, 1. bellows; 2. straight pipe; 3. blades.

[0021] The realization of the purpose, functional features and advantages of this application will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back...) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0024] In the present invention, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0025] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the meaning of "and / or" appearing in the full text includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme that satisfies both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the utility model.

[0026] See also Figure 1 , Figure 2 The embodiment of the present application provides a platinum channel cooling tube structure, which may include a bellows 1, a straight tube 2 and a plurality of blades 3, wherein the straight tube 2 is connected to the bellows 1; the plurality of blades 3 are evenly fixed to the inner cavity of the straight tube 2, each blade 3 includes a first sub-blade and a second sub-blade connected to each other, the angle between the first sub-blade and the second sub-blade is 30° to 150°, and the angle between the first sub-blade and the second sub-blade is preferably 60° to 120°. For example, the twisting angle of each blade 3 at the center position of its width may be: 30°, 40°, 50°, 60°, 70°, 80°, 90°, 100°, 110°, 120°, 130°, 140°, 150°, etc.

[0027] When the high-temperature glass liquid passes through the cooling tube, first, the glass liquid enters the bellows 1 for cooling, and then the glass liquid enters the straight tube 2 for cooling. Since there are multiple blades 3 in the straight tube 2, the glass liquid cools down more evenly in the cross-sectional direction of the straight tube 2. When the glass liquid enters the stirring tank after cooling through the straight tube 2, there is no significant difference in the temperature of the glass liquid in the cross-sectional direction of the tube diameter, and the viscosity of the glass liquid is basically the same, so the pressure of the glass liquid on the stirring system after entering the stirring tank is relatively small. Moreover, the corrugation of the bellows 1 can effectively absorb the expansion and contraction of the platinum cooling tube during the heating and cooling process, avoiding damage caused by the deformation of the platinum tube and prolonging the service life of the cooling channel tube; adding multiple blades in the straight tube 2 forces the flow state and path of the glass liquid in the tube to be changed, so as to achieve the purpose of uniformly cooling the glass liquid in the tube during the cooling process, and improve the temperature uniformity of the radial cross section of the glass liquid in the cooling tube before entering the stirring tank.

[0028] When the angle between the first sub-blade and the second sub-blade is 30° to 150°, the gap between the first sub-blade and the second sub-blade is just the right size, which can ensure smooth flow of the molten glass and uniform cooling of the molten glass.

[0029] See also Figure 3 Furthermore, the bellows 1 is a continuous corrugated structure, and the corrugations on the bellows 1 include crests and troughs. It should be noted that the crest is the highest point of the corrugation of the bellows 1; the trough is the lowest point of the corrugation of the bellows 1. In the radial direction of the bellows 1, the distance from the crest to the trough is 2mm to 10mm. For example, the distance from the crest to the trough of the bellows 1 can be 2mm, 3mm, 4mm, 5mm, 6mm, 7mm, 8mm, 9mm, 10mm, etc.

[0030] It was found in practice that when the distance from the crest to the trough of the bellows 1 is 2mm to 10mm, the contact area between the molten glass and the bellows 1 is larger when the molten glass flows through the bellows 1, and the bellows 1 will not block the normal flow of the molten glass, thereby achieving a better cooling effect on the molten glass.

[0031] Furthermore, the ratio of the corrugation length to the corrugation height of the corrugated tube 1 is 2 to 5, for example, it can be 2, 3, 4, 5, etc.

[0032] Specifically, when the ratio of the corrugation length to the corrugation height of the bellows 1 is 2 to 5, the cooling effect of the bellows 1 is better, and the temperature distribution of the glass liquid is more uniform.

[0033] Furthermore, the bellows 1 includes a plurality of segmented continuous bellows, and the length of each segment of the continuous bellows is 100 mm to 300 mm, for example, 100 mm, 150 mm, 200 mm, 250 mm, or 300 mm.

[0034] It should be noted that when the glass liquid flows through the bellows 1 , the deformation amount of the bellows 1 in the radial direction is between 0.1 mm and 2 mm.

[0035] In this embodiment, the bellows 1 is configured as a segmented structure to facilitate the manufacture, assembly and welding of the platinum channel cooling tube structure.

[0036] Furthermore, the inner diameter of the straight tube 2 is equal to the minimum inner diameter of the corrugated tube 1 .

[0037] In this embodiment, the inner diameter of the straight pipe 2 is set to be equal to the minimum inner diameter of the corrugated pipe 1 , so as to facilitate connecting the corrugated pipe 1 and the straight pipe 2 together.

[0038] Furthermore, the ratio of the length of each blade 3 to the inner diameter of the straight tube 2 is 1 to 3, for example, 1, 2, 3, etc.

[0039] Specifically, when the ratio of the length of the blade 3 to the inner diameter of the straight tube 2 is 1 to 3, the contact area between the glass liquid and the straight tube 2 and the blade 3 is increased, thereby further improving the cooling effect on the glass liquid.

[0040] Furthermore, the planes where the ends of two adjacent blades 3 are located are perpendicular to the length direction of the straight tube 2 .

[0041] In this embodiment, when the ends of two adjacent blades 3 are perpendicular to each other, the glass liquid will not be blocked in the straight tube 2 , thus ensuring the smooth flow of the glass liquid in the straight tube 2 .

[0042] Furthermore, the angle between two adjacent blades 3 is 30° to 90°. Preferably, the angle between two adjacent blades 3 is 60° to 90°. Exemplarily, the angle between two adjacent blades 3 can be 30°, 40°, 50°, 60°, 70°, 80°, 90°, etc.

[0043] In this embodiment, the angle between two adjacent blades 3 is between 30° and 90°. This arrangement allows the molten glass to flow evenly in the straight tube 2. The blades 3 will not block the molten glass, and the cooling effect on the molten glass is better.

[0044] Further, the number of blades 3 provided in the inner cavity of the straight tube 2 is 2 to 10, and preferably, the number of blades 3 provided in the inner cavity of the straight tube 2 is 4 to 6. Exemplarily, the number of blades 3 provided in the inner cavity of the straight tube 2 can be, for example, 2, 3, 4, 5, 6, 7, 8, 9, or 10.

[0045] When the number of blades 3 is 2 to 10, the molten glass flows through the straight tube 2 and can contact with a plurality of blades 3 with a relatively large contact area, so that the molten glass can be evenly cooled.

[0046] Of course, it should be understood that the number of blades 3 arranged in the inner cavity of the straight tube 2 is specifically determined by the length of the straight tube 2 .

[0047] Further, among the plurality of blades 3, the distance between the end of the blade 3 located at the end away from the corrugated tube 1 and the end of the straight tube 2 is d, the inner diameter of the straight tube 2 is a, and 1≤d / a≤3. For example, the value of d / a can be 1, 2, 3, etc.

[0048] In this embodiment, the ratio of the distance d between the end of the blade 3 away from the bellows 1 and the end of the straight tube 2 and the inner diameter a of the straight tube 2 is 1 to 3, which is conducive to the flow of glass liquid at the end of the straight tube 2 and entering the stirring tank.

[0049] The above are only preferred embodiments of the present application, and are not intended to limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made using the contents of the present application specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A platinum channel cooling tube structure, characterized in that: include: Bellows (1); A straight pipe (2) connected to the corrugated pipe (1); A plurality of blades (3) are evenly fixed in the inner cavity of the straight tube (2), each of the blades (3) comprising a first sub-blade and a second sub-blade connected to each other, and the angle between the first sub-blade and the second sub-blade is 30° to 150°.

2. The platinum channel cooling tube structure according to claim 1, characterized in that: The corrugated tube (1) is a continuous corrugated structure; the corrugations on the corrugated tube (1) include crests and troughs; and the distance from the crest to the trough is 2 mm to 10 mm.

3. The platinum channel cooling tube structure according to claim 2, characterized in that: The ratio of the corrugation length to the corrugation height of the corrugated tube (1) is 2-5.

4. The platinum channel cooling tube structure according to claim 1, characterized in that: The corrugated pipe (1) comprises a plurality of segmented continuous corrugated pipes, and the length of each segment of the continuous corrugated pipe is 100 mm to 300 mm.

5. The platinum channel cooling tube structure according to claim 1, characterized in that: The inner diameter of the straight pipe (2) is equal to the minimum inner diameter of the corrugated pipe (1).

6. The platinum channel cooling tube structure according to claim 1, characterized in that: The ratio of the length of each blade (3) to the inner diameter of the straight tube (2) is 1 to 3.

7. The platinum channel cooling tube structure according to claim 1, characterized in that: The planes where the ends of two adjacent blades (3) are located are perpendicular to the length direction of the straight tube (2).

8. The platinum channel cooling tube structure according to claim 7, characterized in that: The angle between two adjacent blades (3) is 30° to 90°.

9. The platinum channel cooling tube structure according to claim 1, characterized in that: The number of blades (3) arranged in the inner cavity of the straight tube (2) is 2 to 10.

10. The platinum channel cooling tube structure according to claim 1, characterized in that: Among the plurality of blades (3), the distance between the end of the blade (3) located away from the corrugated tube (1) and the end of the straight tube (2) is d, and the inner diameter of the straight tube (2) is a, 1≤d / a≤3.

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