Photovoltaic glass kiln tank bottom structure

Abstract

The utility model discloses a photovoltaic glass kiln pool bottom structure, which relates to the technical field of glass kilns and comprises pool bottom pavement bricks and bottom insertion molybdenum electrodes, the bottom insertion molybdenum electrodes are matched with reserved round holes of the pool bottom pavement bricks in an embedded manner, pool bottom secondary layer supporting bricks are fixedly arranged at the bottoms of the pool bottom pavement bricks, the bottom insertion molybdenum electrodes are arranged in the pool bottom secondary layer supporting bricks, and the pool bottom pavement bricks and the bottom insertion molybdenum electrodes are arranged in the pool bottom secondary layer supporting bricks. The bottom of the pool bottom pavement brick is in direct contact with molten glass, the bottom of the pool bottom pavement brick is provided with a pool bottom sub-layer supporting brick which wraps a bottom-inserted molybdenum electrode, the pool bottom sub-layer supporting brick is internally provided with uniformly distributed mounting holes, and the mounting holes are internally provided with cooling water pipes. The cooling water flowing in the cooling water pipe in the pool bottom sub-layer supporting brick is used for taking away heat transferred to the pool bottom sub-layer supporting brick by the bottom-inserted molybdenum electrode, the corrosion speed of the bottom-inserted molybdenum electrode can be slowed down by reducing the temperature of the bottom-inserted molybdenum electrode, the service life of the electrode is prolonged, and molten glass is cooled and solidified when permeating to the bottom of the kiln, so that the anti-permeation performance of the bottom of the kiln is enhanced.

Description

Technical Field

[0001] The utility model relates to the technical field of glass kilns, in particular to a photovoltaic glass kiln pool bottom structure. Background Art

[0002] In recent years, with the vigorous development of the photovoltaic new energy industry, the demand for photovoltaic glass has also increased day by day. The production of glass is inseparable from kilns. Reasonable kiln structure and melting method can ensure the yield of glass products and make glass companies more competitive in the market.

[0003] Publication No. (CN117142747A) discloses an electric heating device and method for a high-generation, large-tonnage substrate glass furnace, comprising: a bottom tank wall, a front tank wall, a rear tank wall, a left tank wall, a right tank wall, a feeding port, a flow hole, tin oxide electrode bricks, a bottom-inserted molybdenum electrode, and a lifting adjustment mechanism; the bottom-inserted molybdenum electrode is a molybdenum electrode treated by a multi-element co-infiltration process, and the bottom-inserted molybdenum electrode is installed on the bottom tank wall after being treated by the multi-element co-infiltration process;

[0004] The use of electric boosting in photovoltaic glass furnaces can improve the melting quality of glass batch materials. However, due to the large daily output of photovoltaic furnaces, the furnace width is too large and is not suitable for the side-inserted electrode electric boosting method. As shown in the above technology, the bottom-inserted electrode electric boosting method can be applied to photovoltaic glass furnaces, but the bottom-inserted molybdenum electrode will be too hot around the bottom-inserted molybdenum electrode, and the erosion rate of the furnace bottom will be accelerated accordingly, thereby increasing the risk of glass liquid leakage. For this reason, we propose a photovoltaic glass furnace bottom structure. Utility Model Content

[0005] In response to the deficiencies in the prior art, the utility model provides a photovoltaic glass kiln pool bottom structure, in which a pool bottom sub-layer support brick wrapping a bottom-inserted molybdenum electrode is arranged at the bottom of the pool bottom paving bricks in direct contact with the glass liquid, and the heat transferred from the bottom-inserted molybdenum electrode to the pool bottom sub-layer support bricks is taken away by the flowing cooling water in the cooling water pipes in the pool bottom sub-layer support bricks. The temperature of the bottom-inserted molybdenum electrode is reduced, which can slow down its erosion rate and increase the life of the electrode. The glass liquid will also be cooled and solidified when it penetrates into the kiln pool bottom, thereby enhancing the anti-penetration performance of the kiln pool bottom.

[0006] In order to solve the above technical problems, the utility model solves the phenomenon of glass liquid leakage at the bottom of the pool through the following technical solutions.

[0007] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0008] A bottom structure of a photovoltaic glass furnace includes floor tiles for the bottom of the furnace and bottom-inserted molybdenum electrodes. The bottom-inserted molybdenum electrodes are fitted into the reserved round holes in the floor tiles for the bottom of the furnace. A secondary bottom support brick is fixedly arranged at the bottom of the floor tiles for the bottom of the furnace. The bottom-inserted molybdenum electrodes are arranged inside the secondary bottom support brick. Uniformly distributed mounting holes are provided inside the secondary bottom support brick, and cooling water pipes are arranged in the mounting holes.

[0009] In some embodiments, the secondary bottom support brick is cylindrical, and the bottom-inserted molybdenum electrodes are arranged in the central through holes of the secondary bottom support brick, so that the heat of the bottom-inserted molybdenum electrodes can be evenly transferred into the secondary bottom support brick.

[0010] In some embodiments, the inner diameter of the through holes inside the floor tiles for the bottom of the furnace and inside the secondary bottom support brick is larger than the outer diameter of the bottom-inserted molybdenum electrodes. Specifically, a 2-mm expansion space is reserved between the inside of the floor tiles for the bottom of the furnace and the inside of the secondary bottom support brick and the bottom-inserted molybdenum electrodes.

[0011] In some embodiments, both the floor tiles for the bottom of the furnace and the secondary bottom support brick are AZS zirconium corundum bricks, and the cooling water pipes are made of 316 heat-resistant steel to improve the service life of the floor tiles for the bottom of the furnace, the secondary bottom support brick, and the cooling water pipes.

[0012] In some embodiments, the mounting holes are spirally arranged inside the secondary bottom support brick, and the middle part of the cooling water pipes is spiral to cooperate with the mounting holes, ensuring that the cooling water pipes absorb the heat of the bottom-inserted molybdenum electrodes in a circular shape and improving the heat dissipation efficiency.

[0013] In some embodiments, the number of spirals of both the mounting holes and the spiral parts of the cooling water pipes is one and a half turns, ensuring that the inlet and outlet of the cooling water pipes are on the same side of the secondary bottom support brick, which is convenient for the cooling water to flow back.

[0014] In some embodiments, uniformly distributed protrusions are fixedly arranged inside the spiral parts of the cooling water pipes, improving the turbulence effect when the cooling water flows through the spiral parts of the cooling water pipes, and then quickly mixing the absorbed heat into the cooling water.

[0015] In some embodiments, multiple cooling water pipes are vertically distributed outside the bottom-inserted molybdenum electrodes, and the cooling water pipes do not interfere with each other, ensuring that the remaining cooling water pipes can operate normally when one of them is damaged.

[0016] In some embodiments, the bottom-inserted molybdenum electrodes extend 20 cm into the glass liquid above the floor tiles for the bottom of the furnace, ensuring the heating effect of the bottom-inserted molybdenum electrodes on the glass liquid.

[0017] In some embodiments, water inlets and outlets are respectively arranged at both ends of the cooling water pipes. The position of the water inlet of a single motor cooling water pipe is lower than the position of the water outlet, and the cooling water enters from the bottom and exits from the top, so that the entire cooling water pipe can be filled.

[0018] Compared with the prior art, the present utility model has the following beneficial effects:

[0019] In the utility model, a secondary layer support brick for the bottom of the tank, which wraps a bottom-inserted molybdenum electrode, is arranged at the bottom of the facing brick on the bottom of the tank in direct contact with the glass liquid. The flowing cooling water in the cooling water pipe in the secondary layer support brick for the bottom of the tank takes away the heat transferred from the bottom-inserted molybdenum electrode to the secondary layer support brick for the bottom of the tank. The reduction of the temperature of the bottom-inserted molybdenum electrode can slow down its erosion rate and increase the service life of the electrode. When the glass liquid penetrates into the bottom of the furnace tank, it will also be cooled and solidified, thereby enhancing the anti-permeation performance of the bottom of the furnace tank;

[0020] By setting the cooling water pipe inside the secondary layer support brick for the bottom of the tank in a spiral shape, it can ensure that the cooling water passes through the entire circumference outside the bottom-inserted molybdenum electrode. At the same time, by setting the water inlet of the same cooling water pipe below the water outlet, it can ensure that the cooling water fills the entire cooling water pipe and guarantee the heat absorption efficiency of the cooling water;

[0021] By reserving an expansion space of 2 mm between the inside of the facing brick on the bottom of the tank, the inside of the secondary layer support brick for the bottom of the tank and the bottom-inserted molybdenum electrode, it can prevent the brick material and the electrode from being damaged due to the concentration of thermal stress caused by the thermal expansion of the brick material and the electrode. Description of the Drawings

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model, the drawings required to be used in the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0023] Figure 1 It is a schematic diagram of the overall structure of the present utility model;

[0024] Figure 2 It is a top view schematic diagram of the overall structure of the present utility model;

[0025] Figure 3 It is a schematic diagram of the distribution of the installation holes of the secondary layer support brick for the bottom of the tank of the present utility model;

[0026] Figure 4 It is a partial cross-sectional view schematic diagram of the overall structure of the present utility model;

[0027] Figure 5 It is a schematic diagram of the distribution of the cooling water pipes outside the bottom-inserted molybdenum electrode of the present utility model;

[0028] Figure 6 It is an internal schematic diagram of the structure of the spiral part of the cooling water pipe of the present utility model.

[0029] Explanation of the drawing numbers: 1. Facing brick on the bottom of the tank; 2. Bottom-inserted molybdenum electrode; 3. Secondary layer support brick for the bottom of the tank; 4. Installation hole; 5. Cooling water pipe; 6. Protrusion; 7. Water inlet; 8. Water outlet. Detailed Implementation Modes

[0030] The present utility model will be further described in detail below with reference to the accompanying drawings.

[0031] The following description is used to disclose the present utility model so that those skilled in the art can implement the present utility model. The preferred embodiments described below are only examples, and those skilled in the art can think of other obvious variations. The basic principles defined in the following description of the present utility model can be used in other implementation schemes, variation schemes, improvement schemes, equivalent schemes, and other technical schemes that do not deviate from the spirit and scope of the present utility model.

[0032] Those skilled in the art should understand that in the disclosure of the present utility model, the terms "longitudinal", "lateral", "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate the orientation or position based on the orientation or position relationship shown in the drawings. It is only for the convenience of describing the present utility model and is a simplified description, rather than indicating or implying that the device or gear element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the above terms should not be construed as limiting the present utility model.

[0033] It can be understood that the term "one" should be understood as "at least one" or "one or more". That is, in one embodiment, the number of an element can be one, while in other embodiments, the number of the element can be multiple. The term "one" should not be construed as a limitation on the number.

[0034] Embodiment:

[0035] Please refer to Figures 1-6 , a bottom structure of a photovoltaic glass furnace, including a bottom paving brick 1 and a bottom-inserted molybdenum electrode 2. The bottom-inserted molybdenum electrode 2 is embedded and fitted with a reserved round hole in the bottom paving brick 1. A bottom secondary layer support brick 3 is fixedly arranged at the bottom of the bottom paving brick 1. The bottom-inserted molybdenum electrode 2 is arranged in the bottom secondary layer support brick 3. Uniformly distributed installation holes 4 are arranged in the bottom secondary layer support brick 3, and cooling water pipes 5 are arranged in the installation holes 4.

[0036] In the embodiment of the present application, the bottom secondary layer support brick 3 is cylindrical, and the bottom-inserted molybdenum electrode 2 is arranged in the central through hole of the bottom secondary layer support brick 3. The heat of the bottom-inserted molybdenum electrode 2 can be evenly transferred into the bottom secondary layer support brick 3.

[0037] In the embodiment of the present application, the installation holes 4 are spirally arranged inside the bottom secondary layer support brick 3, and the middle part of the cooling water pipe 5 is spirally matched with the installation holes 4 to ensure that the cooling water pipe 5 absorbs the heat of the bottom-inserted molybdenum electrode 2 in a circular shape, improving the heat dissipation efficiency.

[0038] In the embodiment of the present application, the number of spirals of the mounting hole 4 and the spiral part of the cooling water pipe 5 is one and a half turns, ensuring that the water inlet and outlet of the cooling water pipe 5 are on the same side of the secondary support brick 3 at the bottom of the pool, facilitating the return of cooling water.

[0039] During the implementation process, the pool bottom paving bricks 1 are placed on the uppermost layer of the kiln pool bottom and are in direct contact with the glass liquid. Expansion joints are evenly reserved when the pool bottom paving bricks 1 are laid. The bottom inserted molybdenum electrode 2 is inserted into the circular hole reserved in the pool bottom paving bricks 1. The bottom inserted molybdenum electrode 2 penetrates 20 cm into the glass liquid to ensure the heating effect of the bottom inserted molybdenum electrode 2 on the glass liquid. The inner diameter of the through hole inside the pool bottom paving bricks 1 and the inner diameter of the inner bottom secondary support bricks 3 are larger than the outer diameter of the bottom inserted molybdenum electrode 2. Specifically, 2 mm of expansion space is reserved between the inside of the pool bottom paving bricks 1, the inside of the pool bottom secondary support bricks 3 and the bottom inserted molybdenum electrode 2 to prevent the bricks and electrodes from expanding due to heat, resulting in concentrated thermal stress and damaging the bricks and electrodes. The pool bottom paving bricks 1 and the pool bottom secondary support bricks 3 are all AZS zirconium corundum bricks. The cooling water pipe 5 is made of 316 heat-resistant steel to increase the service life of the pool bottom paving bricks 1, the pool bottom secondary support bricks 3 and the cooling water pipe 5. The heat of the bottom inserted molybdenum electrode 2 is transmitted through the pool bottom secondary support bricks 3 Transferred to the cooling water pipe 5, since the spiral part of the cooling water pipe 5 is fixed with evenly distributed protrusions 6, the turbulence effect increases when the cooling water flows through the cooling water pipe 5 inside the sub-layer support brick 3 of the pool bottom, and the water that absorbs heat at the wall of the cooling water pipe 5 moves to the center of the cooling water pipe 5 and exchanges with the cold water at the center of the cooling water pipe 5, thereby improving the heat absorption efficiency of the cold water in the cooling water pipe 5 when it flows through the sub-layer support brick 3 of the pool bottom. At the same time, the cooling water pipe 5 inside the sub-layer support brick 3 of the pool bottom is set to a spiral shape to ensure that cooling water passes through the outer side of the bottom inserted molybdenum electrode 2 all around, ensuring uniform heat dissipation of the bottom inserted molybdenum electrode 2, and utilizing the flowing cooling water in the cooling water pipe 5 inside the sub-layer support brick 3 of the pool bottom to take away the heat transferred from the bottom inserted molybdenum electrode 2 to the sub-layer support brick 3 of the pool bottom. The temperature reduction of the bottom inserted molybdenum electrode 2 can slow down its erosion rate, thereby increasing the electrode life. The glass liquid will also be cooled and solidified when it penetrates into the bottom of the kiln pool, thereby enhancing the anti-penetration performance of the kiln pool bottom.

[0040] like Figure 5 As shown, multiple cooling water pipes 5 are vertically distributed outside the bottom-inserted molybdenum electrode 2. The cooling water pipes 5 do not interfere with each other, ensuring that the remaining cooling water pipes 5 can operate normally when one of them is damaged.

[0041] like Figure 5 As shown, a water inlet 7 and a water outlet 8 are provided at both ends of the cooling water pipe 5. The position of the water inlet 7 of the cooling water pipe 5 of a single motor is lower than the position of the water outlet 8. The cooling water enters from the bottom and exits from the top, which can fill the entire cooling water pipe 5 and ensure stable heat transfer.

[0042] Those skilled in the art should understand that the embodiments of the present utility model described above and shown in the accompanying drawings are only examples and do not limit the present utility model. The object of the present utility model has been fully and effectively achieved. The functions and structural principles of the present utility model have been shown and described in the embodiments. Without departing from the principles, any deformation or modification of the embodiments of the present utility model is possible.

Claims

1. A bottom structure of a photovoltaic glass furnace, characterized in that Including: Floor tiles (1) laid on the bottom of the pool and bottom-inserted molybdenum electrodes (2), the bottom-inserted molybdenum electrodes (2) are embedded and fitted with the reserved round holes of the floor tiles (1) laid on the bottom of the pool. A secondary bottom support brick (3) of the pool is fixedly provided at the bottom of the floor tiles (1) laid on the bottom of the pool. The bottom-inserted molybdenum electrodes (2) are arranged in the secondary bottom support brick (3) of the pool. Uniformly distributed mounting holes (4) are provided in the secondary bottom support brick (3) of the pool, and cooling water pipes (5) are arranged in the mounting holes (4).

2. The bottom structure of a photovoltaic glass furnace according to claim 1, wherein: The secondary bottom support brick (3) of the pool is cylindrical, and the bottom-inserted molybdenum electrodes (2) are arranged in the central through hole of the secondary bottom support brick (3) of the pool.

3. The bottom structure of a photovoltaic glass furnace according to claim 2, characterized in that: The inner diameter of the through hole inside the floor tiles (1) laid on the bottom of the pool and inside the secondary bottom support brick (3) of the pool is larger than the outer diameter of the bottom-inserted molybdenum electrodes (2).

4. A bottom structure of a photovoltaic glass furnace according to claim 3, characterized in that: Both the floor tiles (1) laid on the bottom of the pool and the secondary bottom support brick (3) of the pool are AZS zirconium corundum bricks, and the cooling water pipes (5) are made of 316 heat-resistant steel material.

5. A bottom structure of a photovoltaic glass furnace according to claim 4, characterized in that: The mounting holes (4) are arranged in a spiral shape inside the secondary bottom support brick (3) of the pool, and the middle part of the cooling water pipes (5) is spiral-shaped and matched with the mounting holes (4).

6. The bottom structure of a photovoltaic glass furnace according to claim 1, characterized in that: The number of spirals of the spiral parts of the mounting holes (4) and the cooling water pipes (5) is one and a half turns.

7. A bottom structure of a photovoltaic glass furnace according to claim 6, characterized in that: Uniformly distributed protrusions (6) are fixedly provided inside the spiral part of the cooling water pipes (5).

8. A bottom structure of a photovoltaic glass furnace according to claim 6, characterized in that: A plurality of the cooling water pipes (5) are vertically distributed outside the bottom-inserted molybdenum electrodes (2).

9. The bottom structure of a photovoltaic glass furnace according to claim 1, characterized in that: The bottom-inserted molybdenum electrodes (2) extend 20 cm into the glass liquid above the floor tiles (1) laid on the bottom of the pool.

10. A bottom structure of a photovoltaic glass furnace according to claim 5, characterized in that: Water inlets (7) and water outlets (8) are respectively provided at both ends of the cooling water pipes (5). The position of the water inlet (7) of a single cooling water pipe (5) is lower than the position of the water outlet (8).

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