Cooling pipeline connecting structure for heating flange
By adopting the design of U-groove structure, nut locking and welding connection between the cooling pipe and the water circulation pipe, the problem of poor sealing of the cooling pipe is solved, efficient cooling effect and reliable protection of the flange are achieved, and the service life is extended.
Patent Information
- Application Number
- CN202422636429.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-30
- Publication Date
- 2025-09-09
- Estimated Expiration
- 2034-10-30
AI Technical Summary
In the prior art, the sealing performance between the cooling pipe and the cooling water pipe is poor, which easily causes water leakage, affecting the cooling effect and service life of the platinum channel.
The cooling pipe adopts a U-shaped groove structure, which is locked and connected by the first nut and the second nut, and the welding pipe is sealed with the water circulation pipe by welding. The design of high-temperature resistant materials and sealing rings ensures the stability and sealing of the connection.
It effectively prevents water leakage, improves the sealing performance of the cooling pipe, extends the service life of the flange, improves the stability and safety of the production process, and reduces maintenance costs.
Smart Images
Figure CN223318653U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of substrate glass channel equipment, in particular to a cooling pipeline connection structure for a heating flange. Background Art
[0002] TFT-LCD substrate glass is a key material in the panel industry, and its production process incorporates high precision and complex manufacturing. The production process primarily involves furnace melting, platinum channel clarification, stirring and homogenizing, and overflow pulldown. The platinum channel, one of the most expensive and crucial core pieces of equipment, plays a key role in defoaming, clarification, stirring and homogenizing, and material weight control, ensuring that the temperature of the molten glass passing through it meets process requirements. During normal operation, the platinum channel consists of four main components: the feed throat, the heating and clarification tube, the cooling tube, and the stirring and cooling feed tube. Due to its structure and the varying temperatures of its various components, electrical heating is required via flanges. The platinum tubes in the platinum channel are directly heated by connecting an electric current through the flanges.
[0003] During heating, a high current of 1200A to 5000A is applied to the platinum tube, generating significant heat generation within the tube itself. Ultimately, the temperature at different sections of the platinum tube reaches 1200°C to 1600°C, achieving the desired process settings. The flange, the primary device for temperature adjustment in various parts of the platinum channel, is a critical component for the high current input into the platinum tube. It is particularly crucial because it must withstand the high current of thousands of amperes in high-temperature environments for extended periods while also possessing sufficient mechanical load-bearing capacity. During installation, the flange serves as the lifting point for the platinum channel. Furthermore, cooling water must be connected to the flange to prevent damage during long-term exposure to high temperatures. The temperature at this location significantly impacts the quality of the substrate glass product, and the greater the temperature stability, the less impact on the product.
[0004] Currently, the outer edge of the flange is typically surrounded by a cooling pipe, which feeds cooling water into the cooling pipe to cool and protect the flange. However, the cooling water pipe and the cooling pipe are typically threaded together above the platinum channel. Temperature fluctuations during production can easily cause the threaded joint to loosen, resulting in a poor seal. This means the cooling pipe and cooling water pipe are not properly connected, often leading to leakage. Leakage not only impairs the cooling effect of the cooling pipe but also reduces the service life of the platinum channel when water drips onto it.
[0005] Therefore, how to solve the water leakage between the cooling pipe and the cooling water pipe has become a technical problem that needs to be solved urgently by those skilled in the art. Summary of the Invention
[0006] The purpose of the utility model is to provide a cooling pipe connection structure for a heating flange, so as to overcome the problem of poor sealing performance between the cooling pipe and the cooling water pipe in the prior art.
[0007] The utility model solves the above technical problems through the following technical solutions:
[0008] A cooling pipe connection structure for a heating flange, comprising a cooling pipe, a first nut and a second nut;
[0009] The cooling pipe has a U-shaped groove structure, and the two side pipes of the U-shaped groove are respectively provided with a first connecting end and a second connecting end. The first connecting end and the second connecting end are sequentially connected to the male threaded joint, the welded pipe and the first end of the water circulation pipe; wherein, when the first connecting end and the second connecting end are connected to the male threaded joint, they are locked by a first nut, and the male threaded joint and the welded pipe are locked by a second nut;
[0010] When in use, a platinum channel is installed inside the heating flange, and the second end of the water circulation pipe is arranged outside the platinum channel.
[0011] Furthermore, the welding pipe and the water circulation pipe are sealed and connected by welding.
[0012] Furthermore, a sealing ring is provided at one end of the external threaded joint connected to the welding pipe.
[0013] Furthermore, a sealing ring is provided at one end of the external threaded joint that is connected to the first connecting end and the second connecting end.
[0014] Furthermore, the cooling pipe is made of high temperature resistant material.
[0015] Furthermore, the cooling pipe is made of copper material.
[0016] Furthermore, the water circulation pipeline is made of high temperature resistant material.
[0017] Furthermore, the water circulation pipeline is made of stainless steel.
[0018] Furthermore, the second end of the water circulation pipe is a pagoda joint for connecting to a cooling water pipe.
[0019] Furthermore, the U-shaped groove, the first connecting end and the second connecting end of the cooling pipe are an integrally formed structure.
[0020] Compared with the prior art, the positive progress of the present invention is:
[0021] The cooling pipe connection structure for a heating flange provided by the present invention effectively ensures that the connection point is leak-proof by locking the first connection end with a first nut, connecting the second connection end to the external threaded joint, and locking the external threaded joint to the welded pipe with a second nut, thereby improving the sealing performance, maintaining the efficient cooling performance of the cooling pipe, meeting process requirements, effectively preventing damage to the flange, and extending its service life. At the same time, a water circulation pipe is provided between the cooling pipe and the cooling water pipe. By arranging the second end of the water circulation pipe outside the platinum channel, the risk of water leaking directly into the platinum channel is fundamentally eliminated, thereby improving the stability and safety of the production process. At the same time, it also provides a more reliable protective barrier for the platinum channel, enhancing its durability and service life, and laying a solid foundation for the stable operation of the overall process flow.
[0022] Furthermore, by providing a sealing ring at one end where the external threaded joint is connected to the welding pipe, and providing a sealing ring at one end where the external threaded joint is connected to the first connection end and the second connection end, slight deformation caused by temperature changes can be compensated and the tightness of the seal can be maintained.
[0023] Furthermore, the cooling pipes are made of high-temperature resistant materials, and the water circulation pipes are made of high-temperature resistant materials, ensuring that they will not deform at high temperatures, improving the stability and reliability of the entire connection structure, and reducing the need for frequent replacement or repair due to pipe damage, thereby reducing maintenance costs. BRIEF DESCRIPTION OF THE DRAWINGS
[0024] The drawings in the specification are used to provide a further understanding of the present invention and constitute a part of the present invention. The schematic embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention.
[0025] Figure 1 This is the overall schematic diagram of the connection between the cooling pipe and the water circulation pipe;
[0026] Figure 2 Detailed schematic diagram of the connection structure between the cooling pipe and the water circulation pipe.
[0027] Among them, 1 is the cooling pipe; 2 is the water circulation pipe; 3 is the pagoda joint; 4 is the first nut; 5 is the external thread joint; 6 is the second nut; 7 is the sealing ring; 8 is the welding pipe. DETAILED DESCRIPTION
[0028] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.
[0029] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but rather merely represents selected embodiments of the present invention. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort are also within the scope of protection of the present invention.
[0030] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not require further definition or explanation in subsequent drawings.
[0031] In the description of the embodiments of the present invention, it should be noted that if the terms "upper," "lower," "horizontal," "inner," etc. appear to indicate an orientation or positional relationship, they are based on the orientation or positional relationship shown in the accompanying drawings, or are the orientation or positional relationship in which the product of the present invention is typically placed when in use. These terms are used solely to facilitate the description of the present invention and to simplify the description. They do not indicate or imply that the device or component referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. In addition, the terms "first," "second," etc. are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.
[0032] In addition, if the term "horizontal" appears, it does not mean that the component must be absolutely horizontal, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.
[0033] In the description of the embodiments of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "disposed," "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.
[0034] The present invention will be further described in detail below with reference to the accompanying drawings, which are intended to explain rather than limit the present invention.
[0035] See also Figure 1 Schematic diagram of the overall connection between the cooling pipe and the water circulation pipe. The U-shaped groove of the cooling pipe 1 is closely attached to the outer edge of the heating flange. The heating flange is equipped with a platinum channel. The second end of the water circulation pipe 2 is connected to the pagoda connector 3 for the cooling water pipe. During operation, the cooling water pipe flows cooling water into the cooling pipe 1. Since the cooling pipe 1 is closely attached to the outer edge of the heating flange, the heating flange is cooled by the cooling water supplied by the cooling water pipe.
[0036] See also Figure 2 , a detailed schematic diagram of the connection structure between the cooling pipe and the water circulation pipe, a first connecting end and a second connecting end are respectively provided on the two side pipes of the U-shaped groove, the first connecting end and the second connecting end are respectively connected to the external threaded joint 5, the welding pipe 8 and the first end of the water circulation pipe 2; wherein, when the first connecting end and the second connecting end are connected to the external threaded joint 5, they are locked together by the first nut 4, and the external threaded joint 5 and the welding pipe 8 are locked together by the second nut 6, and a sealing ring 7 is provided at the end where the external threaded joint 5 is connected to the welding pipe 8.
[0037] The present invention is described in further detail below with reference to the embodiments:
[0038] Example 1
[0039] A cooling pipe connection structure for a heating flange, comprising a cooling pipe, a first nut 4 and a second nut 6;
[0040] The cooling pipe 1 is a U-shaped groove structure. The two side pipes of the U-shaped groove are respectively provided with a first connecting end and a second connecting end. The first connecting end and the second connecting end are sequentially connected to the male threaded joint 5, the welding pipe 8 and the first end of the water circulation pipe 2. When the first connecting end and the second connecting end are connected to the male threaded joint 5, they are locked by a first nut 4. The male threaded joint 5 and the welding pipe 8 are locked by a second nut 6.
[0041] When in use, a platinum channel is installed inside the heating flange, and the second end of the water circulation pipe 2 is arranged outside the platinum channel.
[0042] Specifically, the welding pipe 8 is sealed and connected to the water circulation pipe 2 by welding.
[0043] Specifically, a sealing ring 7 is provided at one end of the external threaded joint 5 connected to the welding pipe 8 .
[0044] Specifically, a sealing ring 7 is provided at one end of the external threaded joint 5 that is connected to the first connection end and the second connection end.
[0045] Specifically, the cooling pipe 1 is made of high-temperature resistant material.
[0046] Specifically, the water circulation pipe 2 is made of high temperature resistant material.
[0047] Specifically, the cooling pipe 1 is made of copper.
[0048] Specifically, the water circulation pipe 2 is made of stainless steel.
[0049] Specifically, the second end of the water circulation pipe 2 is a pagoda connector 3 for connecting to a cooling water pipe;
[0050] Specifically, the U-shaped groove, the first connecting end and the second connecting end of the cooling pipe 1 are an integrally formed structure.
[0051] In this embodiment, a first nut is used to tighten the first connection end, the second connection end is connected to the external threaded connector, and a second nut is used to tighten the external threaded connector to the welded pipe, effectively ensuring that the connection points are leak-proof, improving sealing performance, maintaining the efficient cooling performance of the cooling pipe, meeting process requirements, effectively preventing damage to the flange, and extending its service life. At the same time, a water circulation pipe is provided between the cooling pipe and the cooling water pipe. By positioning the second end of the water circulation pipe outside the platinum channel, the risk of water leaking directly into the platinum channel is fundamentally eliminated, improving the stability and safety of the production process. It also provides a more reliable protective barrier for the platinum channel, enhancing its durability and service life, and laying a solid foundation for the stable operation of the overall process flow.
[0052] Furthermore, by providing a sealing ring at one end where the external threaded joint is connected to the welding pipe, and providing a sealing ring at one end where the external threaded joint is connected to the first connection end and the second connection end, slight deformation caused by temperature changes can be compensated and the tightness of the seal can be maintained.
[0053] Furthermore, the cooling pipes are made of high-temperature resistant materials, and the water circulation pipes are made of high-temperature resistant materials, ensuring that they will not deform at high temperatures, improving the stability and reliability of the entire connection structure, and reducing the need for frequent replacement or repair due to pipe damage, thereby reducing maintenance costs.
[0054] The above content is only for explaining the technical idea of the present invention and cannot be used to limit the protection scope of the present invention. Any changes made on the basis of the technical solution in accordance with the technical idea proposed by the present invention shall fall within the protection scope of the claims of the present invention.
Claims
1. A cooling pipe connection structure for a heating flange, characterized in that: It comprises a cooling pipe (1), a first nut (4) and a second nut (6); The cooling pipe (1) is a U-shaped groove structure, and a first connecting end and a second connecting end are respectively provided on the two side pipes of the U-shaped groove, and the first connecting end and the second connecting end are sequentially connected to the external threaded joint (5), the welding pipe (8) and the first end of the water circulation pipe (2); wherein, when the first connecting end and the second connecting end are connected to the external threaded joint (5), they are locked and connected by a first nut (4), and the external threaded joint (5) and the welding pipe (8) are locked and connected by a second nut (6); When in use, a platinum channel is installed inside the heating flange, and the second end of the water circulation pipe (2) is arranged outside the platinum channel.
2. A cooling pipe connection structure for a heating flange according to claim 1, characterized in that: The welding pipe (8) is sealed and connected to the water circulation pipe (2) by welding.
3. The cooling pipe connection structure for a heating flange according to claim 1, characterized in that: One end of the external threaded joint (5) connected to the welding pipe (8) is provided with a sealing ring (7).
4. The cooling pipe connection structure for a heating flange according to claim 1, characterized in that: A sealing ring (7) is provided at one end of the external threaded joint (5) that is connected to the first connecting end and the second connecting end.
5. The cooling pipe connection structure for a heating flange according to claim 1, characterized in that: The cooling pipe (1) is made of high temperature resistant material.
6. The cooling pipe connection structure for a heating flange according to claim 1, characterized in that: The cooling pipe (1) is made of copper.
7. The cooling pipe connection structure for a heating flange according to claim 1, characterized in that: The water circulation pipe (2) is made of high temperature resistant material.
8. The cooling pipe connection structure for a heating flange according to claim 1, characterized in that: The water circulation pipe (2) is made of stainless steel.
9. The cooling pipe connection structure for a heating flange according to claim 1, characterized in that: The second end of the water circulation pipe (2) is a pagoda connector (3) for connecting to a cooling water pipe.
10. The cooling pipe connection structure for a heating flange according to claim 1, characterized in that: The U-shaped groove, the first connecting end and the second connecting end of the cooling pipe (1) are an integrally formed structure.