Novel electric auxiliary heating flange iron for photovoltaic calendaring

Abstract

The utility model discloses novel electric auxiliary heating flange iron for photovoltaic calendaring, which is characterized in that the flange iron (1) is divided into an electric heating block (101) and a side fire heating block (102), the electric heating block (101) is contacted with glass liquid, the electric heating block (101) and the side fire heating block (102) are attached together, a resistance wire (6) is arranged in the electric heating block (101), the electric heating block (101) is heated by the resistance wire (6), and the side fire heating block (102) is heated by the resistance wire (6). The actual size of the side fire heating block (102) adapts to the liquid level standard during kiln design, under the condition that the same temperature of the flange iron (1) is required to be achieved, the novel electric auxiliary heating flange iron (1) is low in use energy consumption, the temperature stability is fully improved, generation of forming side abnormity is reduced, the possibility of roller damage or machine replacement caused by side fire extinguishment is reduced, and the service life of the flange iron (1) is prolonged. The service life of the calender is prolonged, and the quality of glass production is improved, so that the unit energy consumption of kiln glass production is reduced, and the operation cost of an enterprise is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of glass production, and specifically relates to a new type of photovoltaic rolling electric auxiliary heating side guard iron. Background Art

[0002] Due to the rapid development of photovoltaic glass companies in recent years, there are more and more photovoltaic cell component manufacturers, resulting in an extremely complex supply and demand relationship in the glass market. The costs of various raw materials continue to rise and fuel costs have hit new highs. In order to adapt to the rapid development of enterprises and the increasingly severe external environment, comply with national environmental protection policy requirements, and avoid the continuous increase in production costs, enterprises must reduce production costs from multiple aspects.

[0003] In a public specification with application number 202223393340.4 and publication date June 13, 2023, a special-shaped retaining edge structure for the flow channel of ultra-white rolled glass is disclosed, including a frame, a lip brick, a retaining edge brick, a box body, and a heating device. The lip brick is arranged on the frame, and two retaining edge bricks are provided, and are respectively and movably arranged on the lip brick in opposite directions. The box body is fixedly provided on one side of the retaining edge brick, and the box body is provided with a heat preservation layer and a heating device. The heating device is arranged close to one side of the retaining edge brick and is used to heat the retaining edge brick, and the heat preservation layer is arranged away from one side of the retaining edge brick. In this way, the temperature of the retaining edge brick can be controlled, that is, the retaining edge brick can be heated and its temperature can be kept warm, effectively avoiding problems such as crystallization sticking to the roller, roller damage, roller pressure line, thickness difference, etc. that affect the production quality of glass.

[0004] In the prior art, the fuel cost accounts for a large proportion of the energy cost of glass manufacturing enterprises. Therefore, enterprises try to reduce the fuel cost as much as possible under the premise of ensuring the stability of production process. The utility model is mainly for reducing the fuel cost. The utility model innovatively proposes a new electric auxiliary heating edge iron idea from reducing the use of edge lances in the edge iron, thereby reducing the use of edge lances and reducing fuel consumption. Utility Model Content

[0005] The utility model aims to provide a new type of photovoltaic rolling electric auxiliary heating side guard iron with lower energy consumption.

[0006] In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a new type of electric auxiliary heating side iron for photovoltaic rolling, the side iron is divided into an electric heating block and a side fire heating block, the electric heating block is in contact with the glass liquid, and the electric heating block and the side fire heating block are bonded together.

[0007] The side surface of the electric heating block is an arc-shaped surface.

[0008] It also includes a side fire gun. The side fire heating block is provided with a side fire hole, and the side fire gun is plugged into the side fire hole.

[0009] The side fire gun is connected with a natural gas regulating valve and an atomizing gas regulating valve.

[0010] The electric heating block is provided with resistance wires.

[0011] The resistance wires are in a tooth shape.

[0012] The resistance wires are distributed along the arc surface of the electric heating block.

[0013] The side fire heating block is provided with a thermocouple, and the thermocouple is attached to the side of the electric heating block.

[0014] The thermocouple is connected to the DCS system.

[0015] Both the natural gas regulating valve and the atomizing gas regulating valve are connected to the DCS system.

[0016] The technical effect of the present utility model is as follows: when the same temperature of the edge iron is required to be achieved, the new type of electric auxiliary heating edge iron has much less energy consumption than the old type of edge iron, the temperature stability is fully improved, the generation of abnormal forming edges is reduced, the possibility of roller damage or machine replacement caused by the extinguishment of the side fire is reduced, it is also beneficial to extend the service life of the calender, improve the production quality of glass, thereby reducing the unit energy consumption of glass production in the furnace and reducing the operating cost of the enterprise. Description of the Drawings

[0017] This specification includes the following drawings, and the shown contents are respectively:

[0018] Figure 1 It is a schematic structural diagram of a new type of electric auxiliary heating edge iron for photovoltaic calendering of the present utility model;

[0019] Figure 2 For Figure 1 a schematic diagram of the thermocouple of a new type of electric auxiliary heating edge iron for photovoltaic calendering in

[0020] Figure 3 For Figure 1 a schematic diagram of the resistance wires of a new type of electric auxiliary heating edge iron for photovoltaic calendering in

[0021] Figure 4 For Figure 1 a schematic diagram of the side fire gun of a new type of electric auxiliary heating edge iron for photovoltaic calendering in

[0022] The marks in the figure are: 1, edge iron; 101, electric heating block; 102, side fire heating block; 2, side fire gun; 3, side fire hole; 4, natural gas regulating valve; 5, atomizing gas regulating valve; 6, resistance wires; 7, thermocouple. Detailed Implementation Modes

[0023] The following will, with reference to the accompanying drawings, further elaborate on the specific implementation manners of the present utility model through the description of embodiments, aiming to help those skilled in the art have a more complete, accurate, and in-depth understanding of the inventive concept and technical solutions of the present utility model, and facilitate its implementation.

[0024] A new type of electric-assisted heating edge iron for photovoltaic rolling, the edge iron 1 is divided into an electric heating block 101 and a side-fire heating block 102. The electric heating block 101 is in contact with the glass liquid phase, and the electric heating block 101 and the side-fire heating block 102 are attached together.

[0025] The actual size of the side-fire heating block 102 is adapted to the liquid level standard during the design of the kiln. When the same temperature of the edge iron 1 is required, the new type of electric-assisted heating edge iron 1 consumes much less energy than the old type of edge iron 1, and the temperature stability is also fully improved, reducing the generation of abnormal forming edges and reducing the possibility of roller damage or machine replacement caused by side-fire extinction. It is also beneficial to extend the service life of the rolling machine, improve the production quality of glass, thereby reducing the unit energy consumption of glass production in the kiln and reducing the enterprise operation cost. The approximate benefit calculation is as follows: Taking a 1000-ton one-kiln four-line photovoltaic rolling glass kiln as an example, calculate the energy consumption cost comparison between using the new type of electric-assisted heating edge iron 1 and the old type of edge iron 1 for all four lines, excluding the output loss caused by production abnormalities due to the use of the old type of edge iron 1.

[0026] The calculation of the old type of side-fire gun 2 edge iron 1 is as follows:

[0027] Under stable production conditions, the average natural gas consumption of the side-fire gun 2 in 8 days is 2500 nm3 / day, and the price of natural gas is based on 5 yuan / nm3;

[0028] That is: the daily energy consumption cost of the edge iron 1 = 2500 * 5 = 12500 yuan / day;

[0029] It is known that the heat released by the complete combustion of 1 cubic meter of natural gas is 34000 kJ; the conversion of 1 degree of electricity into heat is 3600 kJ, and each degree of electricity is calculated at 1 yuan;

[0030] Therefore, the daily electricity consumption cost of using the new type of electric-assisted heating edge iron 1 is 34000 * 2500 / 3600 * 1 = 23611 yuan / day;

[0031] Since all the natural gas energy calculated here is converted into heat, but in fact, the heat energy loss of the waste gas during the combustion process of the side-fire gun 2 of the old type of edge iron 1 is huge due to the need for atomizing gas for combustion, about 70% loss, while the loss of electric energy is small. In actual use, the energy consumption of using electric heating is much lower than that of using natural gas heating.

[0032] The side of the electric heating block 101 is an arc surface; the arc surface is adapted to the arc surface of the calendering upper roll used on site, which is convenient for use.

[0033] It also includes a side gas gun 2. There is a side fire hole 3 in the side fire heating block 102, and the side gas gun 2 is inserted into the side fire hole 3; the side fire hole 3 is installed on the side of the side fire heating block 102, and the size of the side fire hole 3 is appropriate. If it is too large, the heating efficiency of natural gas will be reduced. If it is too small, the waste gas of the side gas gun 2 is not easy to discharge and will affect the improvement of the heating power of the side gas gun 2.

[0034] The side gas gun 2 is connected with a natural gas regulating valve 4 and an atomizing gas regulating valve 5; the entry and atomization of natural gas are controlled by the natural gas regulating valve 4 and the atomizing gas regulating valve 5.

[0035] There is a resistance wire 6 in the electric heating block 101; the electric heating block 101 is heated by the resistance wire 6.

[0036] The resistance wire 6 is in a tooth shape; it can improve the laying area as much as possible and increase the heating area.

[0037] The resistance wire 6 is distributed along the arc surface of the electric heating block 101; it affects the temperature on the arc surface as much as possible.

[0038] There is a thermocouple 7 in the side fire heating block 102, and the thermocouple 7 is attached to the side of the electric heating block 101; the thermocouple 7 is used to monitor the temperature of the electric heating block 101. The thermocouple 7 has the function of continuous measurement, and has a certain stability and reliability in a high-temperature environment to avoid being damaged.

[0039] The thermocouple 7 is connected to the DCS system: the DCS system is used to control the thermocouple 7; the DCS system is used for over-temperature alarm and real-time temperature display.

[0040] Both the natural gas regulating valve 4 and the atomizing gas regulating valve 5 are connected to the DCS system; the natural gas regulating valve 4 and the atomizing gas regulating valve 5 of the side gas gun 2 are interlocked with the power of the internal resistance wire 6. When the thermocouple 7 detects abnormal temperature drop and abnormal power fluctuation of the internal resistance wire 6, the side gas gun 2 system is started through the DCS system, and an audible and visual alarm is issued to remind.

[0041] The working principle of this new type of electric auxiliary heating edge iron 1 is to redesigned the structure of the edge iron 1, and update the heating of the old-fashioned edge iron 1 with a side gas gun 2 using natural gas to an electric auxiliary heating form, so that the heating stability is greatly improved. And for the reliability of the system, the side gas gun 2 heating is retained. When the electric auxiliary heating fails, the side fire system is automatically started through the DCS system interlock to heat the edge iron 1. And during normal production, the power of the internal resistance wire 6 can be automatically adjusted according to the temperature set in the DCS system to ensure the temperature stability of the edge iron 1.

[0042] The technical effects of the present utility model are as follows: when the same temperature of the retaining iron 1 is required to be achieved, the energy consumption of the new type of electric auxiliary heating retaining iron 1 is much less than that of the old type of retaining iron 1, the temperature stability is fully improved, the generation of abnormal forming edges is reduced, the possibility of roller damage or machine replacement caused by the extinguishment of the edge fire is reduced, and it is also beneficial to extend the service life of the calender, improve the production quality of glass, thereby reducing the unit energy consumption of furnace glass production and reducing the enterprise operation cost.

[0043] The present utility model has been described exemplarily in combination with the accompanying drawings. Obviously, the specific implementation of the present utility model is not limited by the above-mentioned manner. As long as various non-substantial improvements are made by adopting the method concept and technical solution of the present utility model; or without improvement, the above-mentioned concept and technical solution of the present utility model are directly applied to other occasions, they are all within the protection scope of the present utility model.

Claims

1. A new type of photovoltaic calendering electric-assisted heating edge iron, characterized in that: The edge retaining iron (1) is divided into an electric heating block (101) and a side-fire heating block (102). The electric heating block (101) is in contact with the glass liquid phase, and the electric heating block (101) and the side-fire heating block (102) are fitted together.

2. A novel photovoltaic calendering electric auxiliary heating edge iron according to claim 1, characterized in that: The side surface of the electric heating block (101) is an arc surface.

3. A novel photovoltaic calendering electric auxiliary heating edge iron according to claim 1, characterized in that: It further includes a side-fire gun (2). A side-fire hole (3) is provided in the side-fire heating block (102), and the side-fire gun (2) is inserted into the side-fire hole (3).

4. A novel photovoltaic calendering electric auxiliary heating edge iron according to claim 3, characterized in that: The side-fire gun (2) is connected to a natural gas regulating valve (4) and an atomizing gas regulating valve (5).

5. The novel photovoltaic calendering electric auxiliary heating edge iron according to claim 2, characterized in that: A resistance wire (6) is provided in the electric heating block (101).

6. The novel photovoltaic calendering electric auxiliary heating edge iron according to claim 5, characterized in that: The resistance wire (6) is in a tooth shape.

7. A novel photovoltaic calendering electric auxiliary heating edge iron according to claim 5 or 6, characterized in that: The resistance wire (6) is distributed along the arc surface of the electric heating block (101).

8. A new type of electric auxiliary heating edge iron for photovoltaic calendering according to claim 1, characterized in that: A thermocouple (7) is provided in the side-fire heating block (102), and the thermocouple (7) is attached to the side of the electric heating block (101).

9. The novel electric-assisted heating edge iron for photovoltaic calendering according to claim 8, wherein: The thermocouple (7) is connected to the DCS system.

10. A novel photovoltaic calendering electric auxiliary heating edge iron according to claim 4, characterized in that: Both the natural gas regulating valve (4) and the atomizing gas regulating valve (5) are connected to the DCS system.

Images