Combustion-supporting air constant-temperature and constant-pressure control device for glass kiln and glass kiln
By designing the constant temperature and constant pressure control device for combustion-assisted air for glass kilns, the problems of unstable combustion efficiency and large fluctuations in natural air are solved, and the constant air temperature and wind pressure control of combustion-assisted air is realized, which improves the stability of production of glass kilns. and glass quality.
Patent Information
- Application Number
- CN202420959377.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-06
- Publication Date
- 2025-02-21
- Estimated Expiration
- 2034-05-06
AI Technical Summary
The existing glass kilns directly use natural wind to participate in combustion, resulting in unstable combustion efficiency, large seasonal fluctuations in energy consumption, and difficult to control stable production processes.
A combustion air constant temperature and constant pressure control device for glass kilns is designed, including combustion air ducts, natural air ducts, temperature measurement devices, pressure measurement devices and DCS control system. It collects, summarizes and supplies air ducts through hot air. Combining natural wind, the DCS control system is used to adjust the valve position of the combustion-assisted air fan and the natural wind inlet to ensure a constant combustion-assisted air temperature and air pressure.
The constant control of the air temperature and air pressure of the combustion-assisted air is achieved, the stability of flame combustion is enhanced, the stable melting kiln production process is ensured, the quality of glass is improved, the heat consumption of the kiln is reduced, the production cost is controlled, and the enterprise efficiency is improved. .
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Figure CN222512872U_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the field of glass production and manufacturing technology, and in particular to a combustion-supporting air constant temperature and pressure control device for a glass furnace. The present invention also relates to a glass furnace including the combustion-supporting air constant temperature and pressure control device for a glass furnace. Background Art
[0002] As an important medium participating in combustion, the combustion-supporting air of a glass kiln affects the production and operation of glass in many ways. The increase in the temperature of the combustion-supporting air and the enhancement of the stability of the wind pressure can effectively reduce the heat required to heat to the same flue gas temperature, improve the stability of flame combustion, reduce the heat consumption of the kiln, and control production costs. In the prior art, most glass kilns directly use natural wind to participate in combustion. At this time, the temperature of natural wind as combustion-supporting air basically varies in the range of 10℃-35℃ with the change of ambient temperature, and the wind temperature fluctuates greatly with the temperature difference between day and night, resulting in technical problems such as unstable combustion efficiency, large seasonal fluctuations in energy consumption, and difficulty in stable control of production processes.
[0003] Therefore, there is still much room for improvement in the prior art in terms of increasing the temperature of the combustion-supporting air and ensuring constant air temperature and pressure. Utility Model Content
[0004] The present invention discloses a combustion-supporting air constant temperature and pressure control device for a glass kiln, so as to solve the technical problems in the prior art that the glass melting furnace directly utilizes natural wind to participate in combustion, resulting in unstable combustion efficiency, large seasonal fluctuations in energy consumption, and difficulty in stable control of the production process.
[0005] In order to solve the above technical problems, the embodiment of the present disclosure provides a combustion-supporting air constant temperature and pressure control device for a glass furnace, comprising:
[0006] The combustion-supporting air pipeline is arranged below the bottom of the glass furnace pool and includes at least two interconnected hot air collecting pipe bodies, a hot air collecting pipe body, and an air supply pipe body, wherein:
[0007] The air inlets of at least two hot air collecting pipe bodies are respectively located below the bottom of the glass kiln pool and face the bottom of the glass kiln pool. The at least two hot air collecting pipe bodies are connected and merged to be connected to the hot air collecting pipe body. The air outlet of the hot air collecting pipe body is connected to the air inlet of the combustion-supporting fan. The air outlet of the combustion-supporting fan is connected to the air inlet of the air supply pipe body. The air outlet of the air supply pipe body is connected to the air inlet of the glass kiln.
[0008] A natural wind pipeline, the natural wind pipeline is connected to the hot wind collection pipe body, and a fluid control device is installed at the air inlet of the natural wind pipeline;
[0009] A temperature measuring device, which is arranged in the air supply pipe body and adjacent to the air inlet of the glass furnace, and is used to measure the temperature of the hot air entering the glass furnace;
[0010] A pressure measuring device, which is arranged in the air supply pipe body and adjacent to the air inlet of the glass furnace, and is used to measure the pressure of the hot air entering the glass furnace;
[0011] A DCS control system is communicatively connected with the temperature measuring device, the pressure measuring device, and the fluid control device.
[0012] In some embodiments, at least two hot air collecting pipe bodies are respectively provided with expanding pipes at their air inlets, and the expanded openings of the expanding pipes face the bottom of the glass furnace pool.
[0013] In some embodiments, the expanded tube is trumpet-shaped.
[0014] In some embodiments, the number of air inlets of the hot air collecting pipe body is two.
[0015] In some embodiments, the fluid control device is an automatic regulating valve.
[0016] In some embodiments, the temperature measuring device is a thermocouple.
[0017] In some embodiments, the pressure measuring device is a pressure transmitter.
[0018] In some embodiments, the diameter of the air inlet of the natural wind duct is 800mm-1200mm.
[0019] In some embodiments, the temperature of the combustion-supporting air is 45°C-55°C.
[0020] The disclosed embodiment also provides a glass kiln, comprising the combustion-supporting air constant temperature and pressure control device described above.
[0021] Compared with the prior art, the beneficial technical effects of the present disclosure are:
[0022] (1) The present invention arranges the combustion-supporting air duct below the bottom of the glass kiln pool, and arranges the combustion-supporting air duct as a hot air collecting pipe body, a hot air aggregating pipe body and an air supply pipe body. Such a pipe position and pipe structure can extract as much hot air as possible from the bottom of the glass kiln pool through the combustion-supporting fan, thereby recycling the waste heat from the bottom of the glass kiln pool to the greatest extent, and is also beneficial to increasing the wind temperature of the combustion-supporting air.
[0023] (2) The present invention provides a temperature measuring device, a pressure measuring device and a DCS control system. The DCS control system receives the temperature and pressure data and, after comprehensive analysis, accurately adjusts the frequency of the combustion-supporting fan and the valve position of the automatic regulating valve at the natural wind inlet according to the actual situation, thereby ensuring a continuous and constant wind temperature and wind pressure of the combustion-supporting air, thereby achieving the purpose of enhancing the stability of flame combustion, ensuring a stable melting furnace production process, improving glass quality, reducing furnace heat consumption, controlling production costs, and improving corporate benefits.
[0024] (3) The present invention connects the natural wind pipeline with the hot air collection pipe body, adopts the method of combining the kiln pool bottom air intake with the natural wind, and uses the combustion-supporting fan to Figure 1 The flow direction indicated by the middle arrow transports natural wind and combustion-supporting air to the air inlet of the glass kiln. The air is mainly taken from the bottom of the pool and supplemented by natural wind, which can ensure that the temperature of the combustion-supporting air is stably controlled within the range of 45℃-55℃. BRIEF DESCRIPTION OF THE DRAWINGS
[0025] In order to more clearly illustrate the technical solutions of the embodiments of the present disclosure, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present disclosure. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.
[0026] Figure 1 It is a schematic structural diagram of a combustion-supporting air constant temperature and pressure control device for a glass furnace disclosed in the present invention.
[0027] Reference numerals list
[0028] 1. Bottom of glass kiln pool; 2. Hot air collecting pipe body; 3. Hot air converging pipe body; 4. Air supply pipe body; 5. Combustion-supporting fan; 6. Natural air pipeline; 7. Fluid control device; 8. Temperature measuring device; 9. Pressure measuring device; 10. Expanding pipe. DETAILED DESCRIPTION
[0029] The following is a further detailed description of the embodiments of the present disclosure in conjunction with the accompanying drawings and examples. The detailed description of the following embodiments and the accompanying drawings are used to exemplarily illustrate the principles of the present disclosure, but cannot be used to limit the scope of the present disclosure. The present disclosure can be implemented in many different forms and is not limited to the specific embodiments disclosed herein, but includes all technical solutions that fall within the scope of the claims.
[0030] The present disclosure provides these embodiments to make the present disclosure thorough and complete, and to fully express the scope of the present disclosure to those skilled in the art. It should be noted that unless otherwise specifically stated, the relative arrangement of the parts and steps, the composition of the materials, the numerical expressions and the numerical values set forth in these embodiments should be interpreted as being merely exemplary, and not as limiting.
[0031] It should be noted that, in the description of the present disclosure, unless otherwise specified, the meaning of "multiple" is greater than or equal to two; the terms "upper", "lower", "left", "right", "inner", "outer", etc., indicating the orientation or positional relationship, are only for the convenience of describing the present disclosure and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present disclosure. When the absolute position of the object being described changes, the relative positional relationship may also change accordingly.
[0032] In addition, the words "first", "second" and similar words used in the present disclosure do not indicate any order, quantity or importance, but are only used to distinguish different parts. "Vertical" does not mean vertical in the strict sense, but is within the tolerance range. "Parallel" does not mean parallel in the strict sense, but is within the tolerance range. "Include" or "comprising" and similar words mean that the elements before the word include the elements listed after the word, and do not exclude the possibility of also including other elements.
[0033] It should also be noted that in the description of the present disclosure, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present disclosure can be understood according to the specific circumstances. When a specific device is described as being located between a first device and a second device, there may or may not be an intermediate device between the specific device and the first device or the second device.
[0034] All terms used in the present disclosure have the same meanings as those understood by those of ordinary skill in the art to which the present disclosure belongs, unless otherwise specifically defined. It should also be understood that terms defined in general dictionaries, for example, should be interpreted as having meanings consistent with their meanings in the context of the relevant technology, and should not be interpreted in an idealized or extremely formal sense, unless explicitly defined as such herein.
[0035] Technologies, methods, and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and equipment should be considered part of the specification.
[0036] Figure 1 The structural schematic diagram of the combustion-supporting air constant temperature and pressure control device for a glass furnace disclosed in the present invention is shown. Figure 1As shown, in some embodiments of the present disclosure, a combustion-supporting air constant temperature and pressure control device for a glass furnace includes a combustion-supporting air pipeline, a natural air pipeline 6, a temperature measuring device 8, a pressure measuring device 9, and a DCS control system (DCS is the abbreviation of Distributed Control System).
[0037] The combustion-supporting air pipeline is arranged below the bottom 1 of the glass kiln pool, and includes at least two interconnected hot air collecting pipe bodies 2, a hot air converging pipe body 3, and an air supply pipe body 4. The air inlets of at least two hot air collecting pipe bodies 2 are respectively located below the bottom 1 of the glass kiln pool and face the bottom 1 of the glass kiln pool. After at least two hot air collecting pipe bodies 2 are connected and merged, they are connected to the hot air converging pipe body 3. The air outlet of the hot air converging pipe body 3 is connected to the air inlet of the combustion-supporting fan 5. The air outlet of the combustion-supporting fan 5 is connected to the air inlet of the air supply pipe body 4. The air outlet of the air supply pipe body 4 is connected to the air inlet of the glass kiln. The temperature of the bottom 1 of the glass kiln pool is usually about 65°C. The air inlet of the hot air collecting pipe body 2 is arranged below the bottom 1 of the glass kiln pool and faces the bottom 1 of the glass kiln pool. The hot air emitted from the bottom 1 of the glass kiln pool can be effectively extracted through the combustion-supporting fan 5. Those skilled in the art should understand that the distance between the air inlet of the hot air collecting pipe body 2 and the bottom 1 of the glass kiln can be reasonably set according to actual needs, for example, the distance between the two is preferably 300 mm. Then, the hot air and natural wind extracted from the bottom of the kiln are transported to the air inlet of the glass kiln through the hot air collecting pipe body 3 and the air supply pipe body 4 by the combustion-supporting fan 5 (see Figure 1 The flow direction of the hot air and natural wind at the bottom of the kiln as shown by the arrow in the middle) can not only recycle the waste heat of the bottom of the glass kiln pool 1, but also increase the temperature of the combustion-supporting air to 45°C-55°C. In some embodiments of the present disclosure, the hot air collecting pipe body 2, the hot air collecting pipe body 3, the air supply pipe body 4, and the natural air pipeline 6 can be made of stainless steel, and the outside can be insulated with thermal insulation cotton and tinplate, so as to well insulate the extracted hot air and reduce heat dissipation consumption.
[0038] The natural wind pipeline 6 is connected to the hot wind collection pipe body 3, and a fluid control device 7 is installed at the air inlet of the natural wind pipeline 6. In some embodiments of the present disclosure, the fluid control device 7 is an automatic regulating valve. The temperature measuring device 8 is arranged in the air supply pipe body 4 and adjacent to the air inlet of the glass furnace, and is used to measure the temperature of the hot air entering the glass furnace. In some embodiments of the present disclosure, the temperature measuring device 8 is a thermocouple. The pressure measuring device 9 is arranged in the air supply pipe body 4 and adjacent to the air inlet of the glass furnace, and is used to measure the pressure of the hot air entering the glass furnace. In some embodiments of the present disclosure, the pressure measuring device 9 is a pressure transmitter. The DCS control system is connected to the temperature measuring device 8, the pressure measuring device 9, and the fluid control device 7 in a communicative manner. The DCS control system receives the temperature data and pressure data measured by the temperature measuring device 8 and the pressure measuring device 9, and after comprehensive analysis, accurately adjusts the frequency of the combustion-supporting fan 5 and the opening of the fluid control device 7 (i.e., the valve position of the automatic regulating valve) according to the actual situation, so as to ensure the constant wind temperature and wind pressure of the combustion-supporting wind.
[0039] In some embodiments of the present disclosure, at least two hot air collecting pipe bodies 2 are respectively installed with expansion pipes 10 at their air inlets, and the expansion of the expansion pipes 10 faces the glass furnace pool bottom 1. In some embodiments of the present disclosure, the expansion pipes 10 are trumpet-shaped. The expansion pipes 10 can increase the area of the glass furnace pool bottom 1 for receiving hot air, thereby extracting as much hot air as possible to increase the combustion-supporting air temperature.
[0040] In some embodiments of the present disclosure, the number of air inlets of the hot air collection pipe body 2 is two. In some embodiments of the present disclosure, the diameter of the air inlet of the natural air duct 6 is 800mm-1200mm. It should be understood by those skilled in the art that, according to the production capacity requirements of different production lines, the number of air inlets of the hot air collection pipe body 2 and the diameter of the air inlet of the natural air duct 6 can be reasonably set to other values, so as to ensure that the combustion-supporting air temperature and air pressure meet the needs of daily production.
[0041] The present disclosure also provides a glass kiln, comprising the combustion-supporting air constant temperature and pressure control device according to the above content.
[0042] The present invention adopts the above-mentioned combustion-supporting air constant temperature and pressure control device to set the main air inlet of the combustion-supporting air at the bottom of the kiln, and uses instruments to monitor the relevant process parameters of the combustion-supporting air and automatically adjust the DCS control system. The temperature of the combustion-supporting air can be increased from the natural air temperature of 10℃-35℃ to 45℃-55℃, thereby reducing the heat required for heating to the same flue gas temperature, effectively ensuring the continuous constancy of the air temperature and pressure, and enhancing the stability of flame combustion, so as to achieve the purpose of improving glass quality, reducing the heat consumption of the melting furnace, and controlling production costs.
[0043] So far, various embodiments of the present disclosure have been described in detail. In order to avoid obscuring the concept of the present disclosure, some details known in the art are not described. Based on the above description, those skilled in the art can fully understand how to implement the technical solution disclosed here.
[0044] Although some specific embodiments of the present disclosure have been described in detail by way of examples, it should be understood by those skilled in the art that the above examples are for illustration only and are not intended to limit the scope of the present disclosure. It should be understood by those skilled in the art that the above embodiments may be modified or some technical features may be replaced by equivalents without departing from the scope and spirit of the present disclosure. In particular, the various technical features mentioned in the various embodiments may be combined in any manner as long as there is no structural conflict.
Claims
1. A combustion-supporting air constant temperature and pressure control device for a glass furnace, characterized in that: include: A combustion-supporting air pipeline, the combustion-supporting air pipeline is arranged below the bottom (1) of a glass furnace pool, and comprises at least two interconnected hot air collecting pipe bodies (2), a hot air collecting pipe body (3), and an air supply pipe body (4), wherein: The air inlets of the at least two hot air collecting pipe bodies (2) are respectively located below the bottom (1) of the glass kiln pool and face the bottom (1) of the glass kiln pool; the at least two hot air collecting pipe bodies (2) are connected and merged to be connected to the hot air collecting pipe body (3); the air outlet of the hot air collecting pipe body (3) is connected to the air inlet of the combustion-supporting fan (5); the air outlet of the combustion-supporting fan (5) is connected to the air inlet of the air supply pipe body (4); and the air outlet of the air supply pipe body (4) is connected to the air inlet of the glass kiln; A natural wind pipeline (6), the natural wind pipeline (6) being in communication with the hot wind collecting pipe body (3), and a fluid control device (7) being installed at the air inlet of the natural wind pipeline (6); A temperature measuring device (8), the temperature measuring device (8) being arranged in the air supply pipe body (4) and adjacent to the air inlet of the glass furnace, and being used to measure the temperature of hot air entering the glass furnace; A pressure measuring device (9), the pressure measuring device (9) being arranged in the air supply pipe body (4) and adjacent to the air inlet of the glass furnace, and being used to measure the pressure of hot air entering the glass furnace; A DCS control system is communicatively connected to the temperature measuring device (8), the pressure measuring device (9), and the fluid control device (7).
2. The combustion-supporting air constant temperature and pressure control device for a glass furnace according to claim 1, characterized in that: An expansion pipe (10) is respectively installed at the air inlet of the at least two hot air collecting pipe bodies (2), and the expansion of the expansion pipe (10) faces the bottom (1) of the glass furnace pool.
3. The combustion-supporting air constant temperature and pressure control device for a glass furnace according to claim 2, characterized in that: The expanded tube (10) is in a trumpet shape.
4. The combustion-supporting air constant temperature and pressure control device for a glass furnace according to claim 1, characterized in that: The number of air inlets of the hot air collecting pipe body (2) is two.
5. The combustion-supporting air constant temperature and pressure control device for a glass furnace according to claim 1, characterized in that: The fluid control device (7) is an automatic regulating valve.
6. The combustion-supporting air constant temperature and pressure control device for a glass furnace according to claim 1, characterized in that: The temperature measuring device (8) is a thermocouple.
7. The combustion-supporting air constant temperature and pressure control device for a glass furnace according to claim 1, characterized in that: The pressure measuring device (9) is a pressure transmitter.
8. The combustion-supporting air constant temperature and pressure control device for a glass furnace according to claim 1, characterized in that: The diameter of the air inlet of the natural wind duct (6) is 800 mm-1200 mm.
9. The combustion-supporting air constant temperature and pressure control device for a glass furnace according to claim 1, characterized in that: The temperature of the combustion-supporting air is 45°C-55°C.
10. A glass furnace, characterized in that: The glass kiln comprises the combustion-supporting air constant temperature and pressure control device according to any one of claims 1-9.