Corrugated pipe connecting device of texturing drying groove
By designing a heat insulation layer and a locking device at the corrugated pipe interface, the problem of loosening and falling off of the corrugated pipe interface was solved, thereby achieving stability of the drying temperature and improving the quality of the silicon wafers.
Patent Information
- Application Number
- CN202422552144.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-22
- Publication Date
- 2025-11-18
- Estimated Expiration
- 2034-10-22
AI Technical Summary
The existing corrugated pipe joints of the drying tank are prone to loosening and falling off, resulting in unstable drying temperature and affecting silicon wafer quality and production efficiency.
A bellows connection device including a heat insulation layer and a locking device was designed. The heat insulation layer is made of high temperature resistant material, and the locking device increases the tightness of the connection through locking straps and fasteners.
It effectively prevents the corrugated pipe interface from loosening and falling off, maintains a stable drying temperature, reduces silicon wafer scorching and liquid carryover, and improves product yield and efficiency.
Smart Images
Figure CN223563667U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of corrugated pipe technology for drying tanks in photovoltaic cell manufacturing equipment, and specifically to a corrugated pipe connection device for texturing drying tanks. Background Technology
[0002] The Topcon cell manufacturing process used on-site is as follows: texturing - front boronizing - back boronizing - BSG + alkaline polishing - LP - phosphorus diffusion - PSG + RCA - ALD - positive film - back film - screen printing - sintering. Cleaning is a major process in Topcon, and the most common cleaning equipment in the industry is the Jiejiachuang trough-type cleaning machine. Among the trough-type cleaning equipment for solar silicon wafers, the trough-type crystal texturing equipment has relatively strict requirements for the drying trough.
[0003] Currently, the corrugated pipe interface of the drying tank is as follows: Figures 1-2 As shown, the corrugated tube is prone to loosening and falling off during operation. The connection and sealing effect of the corrugated tube is poor, and the drying temperature fluctuates, resulting in severe liquid contamination in the area. In severe cases, the silicon wafers after the diffusion tube will have defects such as scorching or bluing, which affects the yield and efficiency of the solar cells, increases the rework rate, and raises the company's production costs. Utility Model Content
[0004] To address the technical problem of corrugated pipe joints easily loosening and detaching, causing abnormal drying temperatures, affecting silicon wafer discharge with liquid and diffusion scorching, and leading to reduced product yield and efficiency, this technical solution provides a corrugated pipe connection device for a texturing drying tank. Through the design of the insulation layer, the impact of residual heat from the drying tank on the PE pipe is reduced, decreasing the probability of PE pipe expansion upon heating and resulting in joint loosening. Simultaneously, the locking device at the joint increases the tightness of the corrugated pipe joint, protecting its sealing performance; thus effectively solving the aforementioned problems.
[0005] This utility model is achieved through the following technical solution:
[0006] A corrugated pipe connection device for a flocking drying tank includes a corrugated pipe; the corrugated pipe includes a PE layer disposed on the outer layer, and a heat insulation layer disposed on the inner wall of the PE layer; a locking device is disposed at the connection point at the end of the corrugated pipe located on the outer side of the PE layer.
[0007] Furthermore, the heat insulation layer is made of a material that is resistant to high temperatures, corrosion, and friction.
[0008] Furthermore, the high-temperature resistant, corrosion-resistant, and abrasion-resistant material is polytetrafluoroethylene (PTFE).
[0009] Furthermore, the heat insulation layer can also be made of plastic paint or UV coating containing modified high-hardness ceramic micro powder, which is applied to the inside of the PE layer to form a heat insulation coating layer.
[0010] Further, the locking device comprises a locking belt and a locking buckle arranged on one side of the locking belt; the locking buckle is provided with a sawtooth-shaped pressing buckle or an eight-shaped buckle with a rotating rod; when the locking buckle is the pressing buckle, gaps corresponding to the sawtooth are arranged on the locking belt; when the locking buckle is the eight-shaped buckle, limiting holes corresponding to the rotating rod are arranged on the locking belt.
[0011] Further, the locking belt is arranged on the inner side of the corrugated pipe and provided with a plurality of convex pressing blocks, the hardness of the pressing blocks is greater than that of the corrugated pipe, and when the locking belt cup is tightened, the pressing blocks can press the corrugated pipe out of the groove and act on the connecting pipeline; so that the connection of the corrugated pipe and the connecting pipeline is more compact.
[0012] Further, the iron wire reinforcing layer is arranged between the heat insulation layer and the PE layer.
[0013] Further, the iron wire reinforcing layer is arranged between the heat insulation layer and the PE layer. Beneficial effects
[0014] The corrugated pipe connecting device of the present application has the following beneficial effects compared with the prior art.
[0015] The corrugated pipe connecting device of the present application has the following beneficial effects compared with the prior art.
[0016] The corrugated pipe connecting device of the present application has the following beneficial effects compared with the prior art. BRIEF DESCRIPTION OF DRAWINGS
[0017] Figure 1 The corrugated pipe connecting device of the present application has the following beneficial effects compared with the prior art.
[0018] Figure 2 The corrugated pipe connecting device of the present application has the following beneficial effects compared with the prior art.
[0019] Figure 3 The corrugated pipe connecting device of the present application has the following beneficial effects compared with the prior art.
[0020] Figure 4This is a front sectional view of the corrugated pipe of this utility model.
[0021] Figure 5 This is a schematic diagram of the locking device in this utility model.
[0022] The labels in the attached diagram are as follows: 1-PE layer, 2-iron wire reinforcement layer, 3-heat insulation layer, 4-locking device, 41-locking buckle, 42-locking band, 421-limiting hole, 422-gap, 43-pressure block, 5-corrugated pipe, 6-connecting pipe. Detailed Implementation
[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. The described embodiments are only some embodiments of the present utility model, and not all embodiments. Various modifications and improvements to the technical solutions of the present utility model made by those skilled in the art without departing from the design concept of the present utility model should fall within the protection scope of the present utility model. Example 1
[0024] like Figures 3 to 5 As shown, a corrugated pipe connection device for a flocking drying tank includes a corrugated pipe; the corrugated pipe includes a PE layer 1 disposed on the outer layer, a heat insulation layer 3 disposed on the inner wall of the PE layer 1, and a wire reinforcement layer 2 disposed between the heat insulation layer 3 and the PE layer 1; a locking device 4 is disposed at the connection point at the end of the corrugated pipe on the outer side of the PE layer 1.
[0025] The heat insulation layer 3 is made of a high-temperature resistant, corrosion-resistant, and abrasion-resistant material. It can be made of polytetrafluoroethylene (PTFE) in the form of a thin film and fixed to the inside of the PE layer. Alternatively, the heat insulation layer 3 can also be made of plastic paint or UV coating containing modified high-hardness ceramic micropowder, which is applied to the inside of the PE layer 1 to form a heat insulation coating layer.
[0026] The wire reinforcement layer 2 is a spiral-shaped wire reinforcement layer, which is fixed between the heat insulation layer 3 and the PE layer 1.
[0027] like Figure 5 As shown, the locking device 4 includes a locking band 42 and a locking buckle 41 disposed on one side of the locking band 42; the locking buckle 41 is a figure-eight buckle with a rotating rod; when the locking buckle 41 is a figure-eight buckle, the locking band 42 is provided with a limiting hole 421 corresponding to the rotating rod. The locking band 42 acts on the inner side of the bellows, which is provided with multiple protruding pressure blocks 43. The hardness of the pressure blocks 43 is greater than that of the bellows. When the locking band 42 is tightened, the pressure blocks 43 can press the bellows out of the groove and act on the connecting pipe 6; making the connection of the bellows and the connecting pipe tighter.
[0028] The locking buckle 41 adopts a press buckle with a sawtooth shape, and when the locking buckle 41 adopts the press buckle, the locking band 42 is provided with a gap 422 corresponding to the sawtooth.
[0029] The above embodiment is only for illustrating the technical concept and characteristics of the present application, and the purpose is to enable those skilled in the art to understand the content of the present application and to implement it, and cannot limit the protection scope of the present application. Any equivalent transformation or modification according to the spirit and essence of the present application should be covered by the present application.
Claims
1. A corrugated pipe connecting device for a flocking and drying tank, comprising a corrugated pipe; characterized in that: The corrugated pipe includes an outer PE layer (1), and an inner wall of the PE layer (1) is provided with a heat insulation layer (3); a locking device (4) is provided at the connection of the corrugated pipe end on the outer side of the PE layer (1).
2. The corrugated pipe connecting device for a flocking and drying tank according to claim 1, characterized in that: The heat insulation layer (3) is made of a material that is resistant to high temperature, corrosion and friction.
3. The corrugated pipe connecting device for a flocking and drying tank according to claim 2, characterized in that: The high-temperature resistant, corrosion-resistant, and abrasion-resistant material mentioned above is polytetrafluoroethylene.
4. The corrugated pipe connecting device for a flocking and drying tank according to claim 1, characterized in that: The heat insulation layer (3) can also be made of plastic paint or UV coating containing modified high-hardness ceramic micro powder, and applied to the inside of the PE layer (1) to form a heat insulation coating layer.
5. The corrugated pipe connecting device for a flocking and drying tank according to claim 1, characterized in that: The locking device (4) includes a locking band (42) and a locking buckle (41) disposed on one side of the locking band (42); the locking buckle (41) is a serrated snap buckle or a figure-eight buckle with a rotating rod; when the locking buckle (41) is a snap buckle, the locking band (42) is provided with a gap (422) corresponding to the serration; when the locking buckle (41) is a figure-eight buckle, the locking band (42) is provided with a limiting hole (421) corresponding to the rotating rod.
6. The corrugated pipe connecting device for a flocking and drying tank according to claim 5, characterized in that: The locking band (42) acts on the inner side of the bellows and has multiple protruding pressure blocks (43). The hardness of the pressure blocks (43) is greater than that of the bellows. When the locking band (42) is tightened, the pressure blocks (43) can press the bellows out of the groove and act on the connecting pipe (6); making the connection of the bellows and the connecting pipe (6) more tightly.
7. A corrugated pipe connecting device for a flocking and drying tank according to any one of claims 1 to 6, characterized in that: A wire reinforcement layer (2) is provided between the heat insulation layer (3) and the PE layer (1).
8. The corrugated pipe connecting device for a flocking and drying tank according to claim 7, characterized in that: The iron wire reinforcement layer (2) is a spiral-shaped iron wire reinforcement layer.