A blowing effect checking device for an environmental protection system warehouse

Abstract

The utility model relates to industrial flue gas purification equipment technical field, especially a kind of for the blowing effect checking device of environmental protection system warehouse room.It is checked device and includes: pressure transmitter, the pressure transmitter is connected with the blowing gas package, for real-time detection blowing gas package internal pressure and generates electric signal;Signal transmission unit, one end of the signal transmission unit is connected with the electric signal output end of the pressure transmitter;Central monitoring system, the signal receiving end of the central monitoring system is connected with the other end of the signal transmission unit;Wherein, the central monitoring system includes display unit, the display unit can be based on electric signal display the pressure change information of the blowing gas package.This checking device can realize the remote, automatic, real-time monitoring of blowing effect, and the abnormality of specific blowing branch pipe or pulse solenoid valve can be accurately diagnosed by observing pressure change information, greatly improve work efficiency, reduce labor intensity.

Description

Technical Field

[0001] This utility model relates to the technical field of industrial flue gas purification equipment, and in particular to a device for checking the blowing effect in the compartment of an environmental protection system. Background Technology

[0002] Modern float glass production lines are generally equipped with integrated sulfur, dust, and nitrogen oxide (NOx) environmental protection systems, capable of comprehensive and in-depth purification of sulfur dioxide, dust, and NOx in flue gas. The core desulfurization, dust removal, and denitrification processes of this system are completed in independent chambers, with the core component being ceramic filter tubes containing built-in catalysts. When high-temperature flue gas passes through the ceramic filter tubes, dust is trapped and filtered out. Simultaneously, NOx in the flue gas undergoes a reduction reaction with injected ammonia under the action of the catalyst, achieving denitrification. Meanwhile, the quicklime dust adhering to the surface of the filter tubes continues the desulfurization reaction. To ensure long-term stable operation and maintain low system resistance, the ceramic filter tubes must be cleaned periodically. The cleaning process is achieved through compressed air pulse jet cleaning technology. Each chamber is equipped with a jet air tank storing high-pressure air, which is controlled by a pulse control valve to instantly inject a reverse airflow into the filter tube, shaking off the dust cake accumulated on the outer wall of the filter tube.

[0003] Currently, checking the effectiveness of the pulse-jet system generally relies on manual on-site inspections. Operators must periodically visit each compartment to observe the pointer changes of the mechanical pressure gauges installed on the pulse-jet air tanks. Theoretically, each time the pulse valve activates, it instantaneously consumes some of the compressed air in the air tank, causing a noticeable fluctuation in the pressure gauge pointer. If the pointer shows no change or only a slight change during the pulse-jet cycle, it can be roughly determined that there is a fault in the pulse-jet system of that compartment. However, this traditional method has some problems. First, it is highly dependent on manual labor. For example, in a system with ten compartments, checking the blowpipes of each compartment individually could require a single person to work continuously for more than ten hours, and this process would need to be repeated, resulting in high labor costs and extremely low efficiency. Second, this method has a serious time lag and cannot achieve real-time monitoring. It may not be discovered until several hours or even longer after a fault occurs, during which time the filter pipes may have accumulated a lot of dust, the system resistance may have soared, and environmental emission standards may even be affected. Third, the accuracy of its judgment depends heavily on the personal experience of the operators. Because the magnitude of pressure fluctuations varies under different operating conditions, minute changes are not easily detected by the naked eye, which can easily lead to misjudgments or omissions. This could result in unplanned downtime due to filter pipe blockage, causing huge economic losses and environmental risks.

[0004] Therefore, it is of great significance to develop an inspection device that can remotely, automatically, in real time, and accurately judge the effect of the spraying. Utility Model Content

[0005] The purpose of this invention is to overcome the technical shortcomings of existing integrated sulfur dust and nitrification environmental protection systems, which rely on manual on-site observation of the mechanical pressure gauges of the jet cleaning tank to judge the dust removal effect. These shortcomings include low efficiency, high labor costs, delayed judgment, reliance on experience for accuracy, and inability to accurately locate faults in real time. This invention provides a jet cleaning effect inspection device for environmental protection system compartments. This inspection device enables remote, automatic, and real-time monitoring of the jet cleaning effect. By observing the pressure trend curve, it can accurately diagnose abnormalities in specific jet cleaning branches or pulse solenoid valves, transforming fault diagnosis from time-consuming manual inspections to instantaneous automatic identification. This significantly improves work efficiency, reduces labor intensity, and effectively prevents filter tube ash accumulation and environmental data fluctuations caused by jet cleaning failure, ensuring the long-term stable operation of the system.

[0006] This utility model provides a device for checking the blowing effect in an environmental protection system compartment. The device is connected to a blowing gas manifold that provides blowing gas to the compartment. The device includes: A pressure transmitter, which is connected to the jet air tank, is used to detect the internal pressure of the jet air tank in real time and generate an electrical signal. A signal transmission unit, one end of which is connected to the electrical signal output terminal of the pressure transmitter; A central monitoring system, wherein the signal receiving end of the central monitoring system is connected to the other end of the signal transmission unit; The central monitoring system includes a display unit that can display pressure change information of the injection air bag based on electrical signals.

[0007] This invention provides a device for checking the purging effect in an environmental protection system compartment. The device includes: a pressure transmitter connected to the purging air tank for real-time detection of the internal pressure of the purging air tank and generation of an electrical signal; a signal transmission unit, one end of which is connected to the electrical signal output terminal of the pressure transmitter; and a central monitoring system, the signal receiving terminal of which is connected to the other end of the signal transmission unit. The central monitoring system includes a display unit that displays pressure change information of the purging air tank based on the electrical signal. This device enables remote, automatic, and real-time monitoring of the purging effect. By observing pressure change information, it can accurately diagnose abnormalities in specific purging branch pipes or pulse solenoid valves, transforming fault diagnosis from time-consuming manual inspections to instantaneous automatic identification. This significantly improves work efficiency, reduces labor intensity, and effectively prevents filter pipe dust accumulation and environmental data fluctuations caused by purging failure, ensuring the long-term stable operation of the system.

[0008] As a preferred embodiment of this utility model, it also includes an air supply pipe, one end of which is used to connect to an external compressed air source, and the other end of which is connected to the jetting air manifold.

[0009] As a preferred embodiment of this utility model, the central monitoring system is a distributed control system; and / or, the central monitoring system is located in a central control room.

[0010] As a preferred embodiment of this utility model, the central monitoring system further includes an alarm module, which triggers an alarm signal when the pressure value corresponding to the electrical signal exceeds a preset alarm upper limit or alarm lower limit.

[0011] As a preferred embodiment of this utility model, the blowing air manifold is connected to multiple blowing branch pipes arranged in parallel at intervals, and the outlet end of the blowing branch pipes extends into the interior of the chamber.

[0012] As a preferred embodiment of this utility model, a pulse solenoid valve is installed on the jetting branch pipe to control the instantaneous jetting of compressed air.

[0013] As a preferred embodiment of this utility model, the pressure trend curve is a sawtooth-shaped fluctuation curve, and the fluctuation shape of the pressure trend curve is used to characterize the working state of the jet branch pipe or the pulse solenoid valve.

[0014] As a preferred embodiment of this utility model, the signal transmission unit is a shielded cable.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows: This invention provides a device for checking the purging effect in an environmental protection system compartment. The device includes: a pressure transmitter connected to the purging air tank for real-time detection of the internal pressure of the purging air tank and generation of an electrical signal; a signal transmission unit, one end of which is connected to the electrical signal output terminal of the pressure transmitter; and a central monitoring system, the signal receiving terminal of which is connected to the other end of the signal transmission unit. The central monitoring system includes a display unit that displays pressure change information of the purging air tank based on the electrical signal. This device enables remote, automatic, and real-time monitoring of the purging effect. By observing pressure change information, such as pressure trend curves, it can accurately diagnose abnormalities in specific purging branch pipes or pulse solenoid valves, transforming fault diagnosis from time-consuming manual inspections to instantaneous automatic identification. This significantly improves work efficiency, reduces labor intensity, and effectively prevents filter pipe dust accumulation and environmental data fluctuations caused by purging failure, ensuring the long-term stable operation of the system. Attached Figure Description

[0016] Figure 1This is a schematic diagram of the structure of the chamber spraying effect inspection device of the integrated sulfur, dust and nitrate environmental protection system of this utility model.

[0017] Reference numerals in the attached diagram: 1-Pulse air manifold; 11-Air supply pipe; 13-Pulse branch pipe; 131-Pulse solenoid valve; 14-Ceramic filter tube; 2-Pressure transmitter; 3-Signal transmission unit; 4-Central monitoring system; 5-Display unit; 6-Compartment. Detailed Implementation

[0018] The present invention will be further described in detail below with reference to specific embodiments. However, it should not be construed as limiting the scope of the present invention to the following embodiments; all technologies implemented based on the content of the present invention fall within the scope of the present invention.

[0019] Unless otherwise specified, the use of terms such as "upper," "lower," "left," "right," "center," "inner," and "outer" to indicate orientation or positional relationships in the description of specific embodiments of this utility model is based on the orientation or positional relationships shown in the accompanying drawings, or the orientation or positional relationship in which the utility model product / equipment / device is typically placed during use. These terms are merely for the purpose of facilitating the description of the utility model solution or simplifying the description in specific embodiments, enabling those skilled in the art to quickly understand the solution, and do not indicate or imply that a specific device / component / element must have a specific orientation, or be constructed and operated in a specific positional relationship. Therefore, they should not be construed as limitations on this utility model.

[0020] Furthermore, the use of terms such as "horizontal," "vertical," "suspended," and "parallel" does not imply that the corresponding device / component / element must be absolutely horizontal, vertical, suspended, or parallel, but rather that it can be slightly tilted or have a deviation. For example, "horizontal" merely means that its direction is more horizontal relative to "vertical," not that the structure must be completely horizontal, but can be slightly tilted. Alternatively, it can be simplified to mean that the corresponding device / component / element, when set in a "horizontal," "vertical," "suspended," or "parallel" direction, can have an error / deviation of ±10% relative to the corresponding direction, more preferably within ±8%, more preferably within ±6%, more preferably within ±5%, and more preferably within ±4%. As long as the corresponding device / component / element is within the error / deviation range, it can still achieve its function in the present invention.

[0021] Furthermore, the use of terms such as "first," "second," and "third" in terminology is merely for distinguishing descriptions of identical or similar components and should not be interpreted as emphasizing or implying the relative importance of a particular component.

[0022] Furthermore, in the description of the embodiments of this utility model, "several", "multiple", and "several" represent at least two. The number can be any number, such as two, three, four, five, six, seven, eight, or nine, and can even exceed nine.

[0023] Furthermore, in the description of the technical solution of this utility model, unless otherwise explicitly specified / limited / restricted, the terms "set up," "install," "connect," "link," "equipped with," "laid out," and "arranged" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to common connection methods in the art, such as welding, riveting, bolting, and threaded connections. Such connections can be mechanical, electrical, or communication connections; they can be direct connections or indirect connections through an intermediate medium; and they can refer to the internal communication between two components.

[0024] Currently, float glass production lines are generally equipped with integrated sulfur, dust, and nitrogen oxide (NOx) environmental protection systems, capable of comprehensive and in-depth purification of sulfur dioxide, dust, and NOxes in flue gas. At present, checking the effectiveness of the pulse-jet cleaning process generally relies on manual on-site inspections. Operators need to periodically visit each compartment to observe the pointer changes of the mechanical pressure gauges installed on the pulse-jet air tanks. Theoretically, each time the pulse valve activates, it instantaneously consumes some of the compressed air in the air tank, causing a noticeable fluctuation in the pressure gauge pointer. If the pointer shows no change or only a slight change during the cleaning cycle, it can be roughly determined that there is a malfunction in the cleaning system of that compartment.

[0025] However, this traditional method has several problems. First, it is highly dependent on manual labor. For example, one person would have to observe the pressure gauge and the changes in each pipe. With 20 pipes in one compartment, it would take 3 minutes to clean each pipe, 1 hour for one compartment, and 10 hours for 10 compartments. This process would repeat, requiring a large amount of manpower, resulting in high labor costs and extremely low efficiency. Second, this method has a significant time lag and cannot achieve real-time monitoring. Faults may not be detected for hours or even longer after they occur, during which time the filter tubes may have accumulated a lot of dust, the system resistance may have soared, and environmental emission standards may have been affected. Third, the accuracy of the judgment depends heavily on the personal experience of the operators. Because the magnitude of pressure fluctuations varies under different operating conditions, minute changes are not easily detected by the naked eye, which can easily lead to misjudgments or missed judgments. This can result in unplanned shutdowns due to filter tube blockage, causing huge economic losses and environmental risks.

[0026] This utility model provides a device for checking the blowing effect in an environmental protection system compartment. The device is connected to a blowing gas manifold that provides blowing gas to the compartment. The device includes: A pressure transmitter, which is connected to the jet air tank, is used to detect the internal pressure of the jet air tank in real time and generate an electrical signal. A signal transmission unit, one end of which is connected to the electrical signal output terminal of the pressure transmitter; A central monitoring system, wherein the signal receiving end of the central monitoring system is connected to the other end of the signal transmission unit; The central monitoring system includes a display unit that can display pressure change information of the injection air bag based on electrical signals.

[0027] This inspection device enables remote, automatic, and real-time monitoring of the purging effect. By observing pressure change information, it can accurately diagnose abnormalities in specific purging branch pipes or pulse solenoid valves, transforming fault diagnosis from manual inspections that take tens of hours to instantaneous automatic identification. This greatly improves work efficiency, reduces labor intensity, and effectively prevents filter pipe dust accumulation and environmental data fluctuations caused by purging failure, ensuring the long-term stable operation of the system.

[0028] In some embodiments, an air supply pipe is further included, one end of which is used to connect to an external compressed air source, and the other end of which is connected to the jet air manifold.

[0029] In some embodiments, the central monitoring system is a distributed control system; and / or, the central monitoring system is located in a central control room.

[0030] In some embodiments, the central monitoring system further includes an alarm module that triggers an alarm signal when the pressure value corresponding to the electrical signal exceeds a preset alarm upper limit or alarm lower limit.

[0031] In some embodiments, the blowing air manifold is connected to a plurality of blowing branch pipes arranged in parallel at intervals, the outlet ends of the blowing branch pipes extending into the interior of the chamber. A ceramic filter pipe is disposed inside the chamber, below the outlet ends of the blowing branch pipes.

[0032] In some embodiments, a pulse solenoid valve is installed on the jet branch pipe for controlling the instantaneous jetting of compressed air.

[0033] In some embodiments, the pressure trend curve is a sawtooth-shaped fluctuation curve, and the fluctuation shape of the pressure trend curve is used to characterize the working state of the injection branch pipe or pulse solenoid valve connected to the corresponding injection air manifold.

[0034] In some embodiments, the signal transmission unit is a shielded cable.

[0035] To better understand the technical solutions of the above embodiments, the following more detailed factual process is provided for further explanation.

[0036] Example 1 The inspection device provided in Example 1, such as Figure 1 As shown, the inspection device mainly consists of three parts: a pressure transmitter 2, a signal transmission unit 3, and a central monitoring system 4. The pressure transmitter 2 serves as the data acquisition source, and its pressure tap is connected to the injection air manifold 1. This installation method eliminates the need for large-scale modifications to existing pipelines and can be completed without shutting down the system, making it convenient to implement. It also includes an air supply pipe 11, one end of which is connected to an external compressed air source, and the other end of which is connected to the injection air manifold 1.

[0037] The pressure transmitter 2 monitors the pressure inside the injection air tank 1 in real time and converts it into a current signal (electrical signal). This electrical signal is transmitted through the signal transmission unit 3, preferably a shielded cable. The shielded cable effectively resists electromagnetic interference on site, ensuring the stability of signal transmission. One end of the cable is connected to the electrical interface of the pressure transmitter 2, and the other end is laid remotely to the central control room and connected to the signal input module of the central monitoring system 4.

[0038] In this embodiment, the central monitoring system 4 is preferably a distributed control system (DCS) widely used in the industrial field. The signal processing module of the DCS system performs analog-to-digital conversion and calculation on the received current signal to obtain the real-time pressure value. This pressure value is displayed numerically in a dedicated area on the display unit 5 (i.e., computer monitor) of the DCS monitoring screen. On the other hand, the system automatically generates and dynamically displays the pressure trend curve of the blowing air tank 1 with time as the horizontal axis and pressure as the vertical axis.

[0039] This curve is key to the accurate diagnosis achieved by this invention. During normal system operation, whenever a pulse occurs, the solenoid valve 131 (e.g., ...) Figure 1 When the air is turned on, a jet cleaning process is performed on the ceramic filter tube 14 in chamber 6. This instantaneously releases a portion of compressed air from the jet air manifold 1, causing a brief drop in pressure within the air supply pipe 11. The pressure then rises again due to the replenishment of air supply, resulting in a distinct "V" or "U" shaped gap on the curve. The continuous and regular jet cleaning action makes the entire curve exhibit a typical sawtooth-shaped fluctuation.

[0040] Operators can remotely observe the shape of this curve from the central control room. If the curve maintains normal sawtooth fluctuations, it indicates that the injection system is working normally. If the curve becomes flat and there are no sawtooth waves, it indicates that the entire injection circuit corresponding to the air tank may have completely failed. If a certain expected sawtooth wave is missing, it can be precisely located that a specific sequence of injection branch pipes 13 or its pulse solenoid valve 131 is malfunctioning. In addition, the DCS system also has a built-in alarm module, and engineers can preset the upper alarm limit (e.g., 0.65MPa) and lower alarm limit (e.g., 0.4MPa) for pressure. When the pressure signal continuously exceeds this range, the system will automatically trigger an audible and visual alarm to remind the operator to intervene, realizing predictive maintenance.

[0041] This inspection device enables remote, automatic, and real-time monitoring of the purging effect. By observing the pressure trend curve, it can accurately diagnose the abnormalities of specific purging branch pipe 13 or pulse solenoid valve 131, transforming fault diagnosis from manual inspection that takes tens of hours to instant automatic identification. This greatly improves work efficiency, reduces labor intensity, and effectively prevents filter tube dust accumulation and environmental data fluctuations caused by purging failure, ensuring the long-term stable operation of the system.

[0042] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A device for checking the jetting effect in an environmental protection system compartment, the device being connected to a jetting gas manifold that provides jetting gas to the compartment, characterized in that, The inspection device includes: A pressure transmitter, which is connected to the jet air tank, is used to detect the internal pressure of the jet air tank in real time and generate an electrical signal. A signal transmission unit, one end of which is connected to the electrical signal output terminal of the pressure transmitter; A central monitoring system, wherein the signal receiving end of the central monitoring system is connected to the other end of the signal transmission unit; The central monitoring system includes a display unit that can display pressure change information of the injection air bag based on electrical signals.

2. The inspection device according to claim 1, characterized in that, It also includes an air supply pipe, one end of which is used to connect to an external compressed air source, and the other end of which is connected to the jet air manifold.

3. The inspection device according to claim 1, characterized in that, The central monitoring system is a distributed control system; and / or, the central monitoring system is located in a central control room.

4. The inspection device according to claim 1, characterized in that, The central monitoring system also includes an alarm module, which triggers an alarm signal when the pressure value corresponding to the electrical signal exceeds the preset alarm upper or lower limit.

5. The inspection device according to claim 1, characterized in that, The blowing air manifold is connected to multiple blowing branch pipes arranged in parallel at intervals, and the outlet end of the blowing branch pipes extends into the interior of the compartment.

6. The inspection device according to claim 5, characterized in that, A pulse solenoid valve is installed on the injection branch pipe to control the instantaneous injection of compressed air.

7. The inspection device according to claim 6, characterized in that, The pressure change information of the injection air bag includes a pressure trend curve.

8. The inspection device according to claim 7, characterized in that, The pressure trend curve is a sawtooth-shaped fluctuation curve, and the fluctuation shape of the pressure trend curve can characterize the working state of the jet branch pipe or pulse solenoid valve.

9. The inspection device according to any one of claims 1-8, characterized in that, The signal transmission unit is a shielded cable.

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