Automatic water replenishing control system of horizontal wet electric dust collector

Abstract

The invention discloses an automatic water replenishing control system of a horizontal wet electric precipitator, which relates to the technical field of horizontal wet electric precipitators and comprises an anode tube dust dynamic detection module, a spraying system water level detection module, a water replenishing flow real-time detection module, a spraying system spraying amount dynamic adjustment module, a control module, a water replenishing execution module and an early warning module. The control module correspondingly adjusts the lowest threshold value and the highest threshold value of the initial water level according to the spraying amount strategy adjusted by the spraying system spraying amount dynamic adjusting module, and then adjusts the initial water supplementing strategy according to the results of the spraying system water level detection module and the water supplementing flow real-time detection module to obtain the dynamic water supplementing strategy. And finally, the control module forms a water replenishing control instruction according to the dynamic water replenishing strategy, the water replenishing execution module can integrate the water level signal, the water replenishing flow signal and the spraying quantity signal of the spraying system to accurately, stably and efficiently replenish water for a water tank of the spraying system, and the problems of water shortage and water overflow are avoided.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of horizontal wet electric dust collector, and particularly relates to an automatic water replenishing control system of horizontal wet electric dust collector. BACKGROUND

[0002] Electric dust collectors are divided into dry and wet types according to the dust cleaning method. The dry type electric dust collector adopts a rapping dust cleaning method, and the collected dust is dry. The conventional electric dust collector belongs to the dry type electric dust collector. The wet type electric dust collector adopts water dust cleaning, and the obtained product is a mixture of dust and water.

[0003] The horizontal wet electric dust collector is a high-efficiency flue gas purification equipment, which is widely used in power, steel, cement and other industries to remove dust, acid mist and other pollutants in flue gas. In the operation process of the horizontal wet electric dust collector, the spraying system plays a crucial role. It forms a uniform water film on the inner wall of the anode tube, washes the dust adsorbed on the inner wall of the anode tube to the ash bucket, thereby realizing the dust cleaning function and preventing secondary dust raising.

[0004] The existing water replenishing control of the spraying system of the horizontal wet electric dust collector mostly adopts manual control or simple timing water replenishing. The manual control method has problems such as high labor intensity, non-timely or inaccurate water replenishing, and is prone to cause water shortage or water overflow of the spraying system, thereby affecting the dust removal effect and equipment life of the wet electric dust collector. The timing water replenishing method is to monitor the water level of the water tank, then judge the difference between the current water level and the set highest threshold water level, then replenish water into the water tank at a set constant water replenishing flow rate for a specific period according to the water replenishing amount required by the difference. In this case, the actual water demand flow rate of the spraying system and the dynamic change of the water replenishing flow rate in the water replenishing system are not considered. The spraying system will adjust the spraying according to the dust amount. In this case, if the actual water replenishing flow rate is less than the set constant water replenishing flow rate, the water replenishing amount in the water tank will not meet the predetermined requirement after a specific period. At this time, if the dust on the inner wall of the anode tube is more, the spraying system needs to use large flow rate for washing, and the water tank will quickly run out of water due to the small water replenishing flow rate and the small amount of stored water in the water tank in a period of washing. On the contrary, if the actual water replenishing flow rate is greater than the set constant water replenishing flow rate, the water replenishing amount in the water tank will exceed the highest threshold water level after a specific period. Due to the fact that the water demand flow rate of the spraying system is less than the actual water replenishing flow rate, the water tank will finally overflow, causing water waste. In summary, the existing timing water replenishing method cannot be flexibly adjusted according to the actual water demand flow rate and the change of the water replenishing flow rate, and will also cause water waste or water replenishing shortage. Therefore, the present application provides an automatic water replenishing control system of horizontal wet electric dust collector to solve the problems in the prior art. SUMMARY

[0005] In order to solve the above problems, the present application aims to provide a horizontal wet electric dust collector automatic water replenishment control system, a control module dynamically adjusts the spray amount strategy of a spray system to correspondingly adjust the initial water level minimum threshold value and maximum threshold value, then adjusts the initial water replenishment strategy according to the results of the spray system water level detection module and the water replenishment flow real-time detection module to obtain a dynamic water replenishment strategy, finally the control module forms a water replenishment control instruction according to the dynamic water replenishment strategy, and a water replenishment execution module can comprehensively use the water level signal, the water replenishment flow signal and the spray amount signal of the spray system to accurately and stably and efficiently replenish water for the water tank of the spray system, so as to avoid water shortage and water overflow.

[0006] In order to achieve the above-mentioned purpose, the present application provides the following technical scheme:

[0007] A horizontal wet electric dust collector automatic water replenishment control system comprises an anode tube dust dynamic detection module, a spray system water level detection module, a water replenishment flow real-time detection module, a spray system spray amount dynamic adjustment module, a control module, a water replenishment execution module and a warning module.

[0008] The anode tube dust dynamic detection module detects the dust amount on the inner wall of the anode tube.

[0009] The spray system water level detection module detects the water level in the water tank of the spray system.

[0010] The water replenishment flow real-time detection module is used for real-time detection of the water replenishment pipeline flow in the water replenishment system.

[0011] The spray system spray amount dynamic adjustment module adjusts the spray amount in real time according to the detection result signal of the anode tube dust dynamic detection module.

[0012] The control module is used for setting the initial water level minimum threshold value and maximum threshold value, and setting the initial water replenishment strategy according to the initial water level minimum threshold value and maximum threshold value, after the spray system spray amount dynamic adjustment module executes the adjusted spray amount strategy, the control module adjusts the initial water level minimum threshold value and maximum threshold value according to the execution content of the spray system spray amount dynamic adjustment module to obtain new water level minimum threshold value and maximum threshold value, then adjusts the initial water replenishment strategy according to the results of the spray system water level detection module and the water replenishment flow real-time detection module to obtain a dynamic water replenishment strategy, finally the control module forms a water replenishment control instruction according to the dynamic water replenishment strategy.

[0013] The water replenishment execution module is used for receiving the water replenishment control instruction of the control module, and then replenishing water into the water tank of the spray system.

[0014] The warning module interacts with the control module and is used for safety warning according to the detection results of the spray system water level detection module and the water replenishment flow real-time detection module.

[0015] Further improvement lies in that the anode tube dust dynamic detection module detects the dust amount on the inner wall of the anode tube in real time by arranging an electrostatic sensor at the anode tube port of the horizontal wet electric dust collector.

[0016] Further improvement lies in that the spraying system water level detection module is an ultrasonic liquid level sensor arranged in the water tank of the spraying system, and the water level in the water tank of the spraying system is detected in real time by the ultrasonic liquid level sensor.

[0017] Further improvement lies in that the water replenishment flow real-time detection module is an electromagnetic flowmeter arranged on the water replenishment pipeline of the spraying system.

[0018] Further improvement lies in that the spraying system spraying amount dynamic adjustment module first sets an initial spraying amount execution strategy and a corresponding dust amount under the initial spraying amount execution strategy, and then adjusts the spraying amount in real time according to the detection result signal of the anode tube dust dynamic detection module.

[0019] Further improvement lies in that when the dust amount shown by the detection result signal of the anode tube dust dynamic detection module is greater than the corresponding dust amount under the initial spraying amount execution strategy, the inner wall of the anode tube of the horizontal wet electric dust collector is flushed by increasing the spraying amount; and when the dust amount shown by the detection result signal of the anode tube dust dynamic detection module is less than the corresponding dust amount under the initial spraying amount execution strategy, the inner wall of the anode tube of the horizontal wet electric dust collector is flushed by decreasing the spraying amount.

[0020] Further improvement lies in that the control module adjusts the initial water level minimum threshold value and maximum threshold value according to the execution content of the spraying system spraying amount dynamic adjustment module, that is, when the spraying system spraying amount dynamic adjustment module executes the increase of the spraying amount to flush the inner wall of the anode tube of the horizontal wet electric dust collector, the water level minimum threshold value and the maximum threshold value are adjusted to be higher, and when the spraying system spraying amount dynamic adjustment module executes the decrease of the spraying amount to flush the inner wall of the anode tube of the horizontal wet electric dust collector, the water level minimum threshold value and the maximum threshold value are adjusted to be lower.

[0021] The control module adjusts the initial water replenishment strategy according to the results of the spraying system water level detection module and the water replenishment flow real-time detection module, that is, when the water level detection module is lower than the currently set water level minimum threshold value, water replenishment is started, and the water replenishment flow is dynamically set according to the water replenishment flow detected by the current water replenishment flow real-time detection module to ensure that the water level in the water tank can be replenished to the currently set water level maximum threshold value within the set water replenishment period T1.

[0022] Further improvement lies in that the water supplement execution module is composed of a water supplement pump and a water supplement valve, the input end of the water supplement pump is connected with an external water supplement source, the output end of the water supplement pump is connected with a water supplement pipeline in the water supplement system, and the water supplement valve is arranged on the water supplement pipeline.

[0023] Further improvement lies in that when the water level detection module detects that the water level is always lower than the initial water level minimum threshold value or the new water level minimum threshold value and is always higher than the initial water level maximum threshold value or the new water level maximum threshold value within the set period T2, the water level is too low or too high, and the warning module performs the safety warning according to the detection result of the water level detection module.

[0024] Further improvement lies in that when the water supplement pipeline flow in the water supplement system is always lower than the set minimum flow or the maximum flow of the water supplement system within the set period T2, the water supplement flow is too low or too high, and the warning module performs the safety warning according to the detection result of the water supplement flow real-time detection module.

[0025] The beneficial effects of the present application are that the present application detects the water level in the water tank of the spraying system through the spraying system water level detection module, detects the dust amount on the inner wall of the anode pipe through the anode pipe dust dynamic detection module, and detects the real-time water supplement flow of the water supplement system through the water supplement flow real-time detection module, the control module adjusts the initial water level minimum threshold value and the maximum threshold value according to the adjusted spraying amount strategy executed by the spraying system spraying amount dynamic adjustment module, then adjusts the initial water supplement strategy according to the results of the spraying system water level detection module and the water supplement flow real-time detection module to obtain a dynamic water supplement strategy, finally, the control module forms a water supplement control instruction according to the dynamic water supplement strategy, and the water supplement execution module can comprehensively use the water level signal, the water supplement flow signal and the spraying amount signal of the spraying system to accurately and stably and efficiently supplement the water tank of the spraying system, avoid water shortage and water overflow, improve the stability of the water supplement system, optimize the operation pressure of the water supplement system and avoid overload operation of the water supplement system. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 The present application is a structural system framework diagram DETAILED DESCRIPTION

[0027] In order to deepen the understanding of the present application, the present application will be further described in combination with examples, and the present embodiment is only used to explain the present application and does not constitute a limitation on the protection scope of the present application.

[0028] Embodiment one

[0029] According to Figure 1As shown, the embodiment proposes an automatic water replenishment control system for a horizontal wet electric dust collector, which comprises an anode pipe dust dynamic detection module, a spraying system water level detection module, a water replenishment flow real-time detection module, a spraying system spraying amount dynamic adjustment module, a control module, a water replenishment execution module and a warning module.

[0030] The anode pipe dust dynamic detection module detects the amount of dust on the inner wall of the anode pipe.

[0031] The spraying system water level detection module detects the water level in the water tank of the spraying system.

[0032] The water replenishment flow real-time detection module is used to detect the flow of the water replenishment pipeline in the water replenishment system in real time.

[0033] The spraying system spraying amount dynamic adjustment module adjusts the spraying amount in real time according to the detection result signal of the anode pipe dust dynamic detection module.

[0034] The control module is used to set the initial water level minimum threshold value and the maximum threshold value, and set the initial water replenishment strategy according to the initial water level minimum threshold value and the maximum threshold value. After the spraying system spraying amount dynamic adjustment module executes the adjusted spraying amount strategy, the control module adjusts the initial water level minimum threshold value and the maximum threshold value according to the execution content of the spraying system spraying amount dynamic adjustment module to obtain new water level minimum threshold value and maximum threshold value, and then adjusts the initial water replenishment strategy according to the results of the spraying system water level detection module and the water replenishment flow real-time detection module to obtain a dynamic water replenishment strategy. Finally, the control module forms a water replenishment control instruction according to the dynamic water replenishment strategy.

[0035] The water replenishment execution module is used to receive the water replenishment control instruction of the control module, and then replenishes water into the water tank of the spraying system.

[0036] The warning module interacts with the control module, and is used to perform safety warning according to the detection results of the spraying system water level detection module and the water replenishment flow real-time detection module.

[0037] Embodiment two

[0038] According to Figure 1 As shown, the embodiment proposes an automatic water replenishment control system for a horizontal wet electric dust collector, which comprises an anode pipe dust dynamic detection module, a spraying system water level detection module, a water replenishment flow real-time detection module, a spraying system spraying amount dynamic adjustment module, a control module, a water replenishment execution module and a warning module.

[0039] The spraying system water level detection module is an ultrasonic liquid level sensor arranged in the water tank of the spraying system, which detects the water level in the water tank of the spraying system in real time.

[0040] The water supplement flow real-time detection module is an electromagnetic flowmeter, and the electromagnetic flowmeter is arranged on a water supplement pipeline of the spraying system.

[0041] The spraying system spraying amount dynamic adjustment module first sets an initial spraying amount execution strategy and a corresponding dust amount under the initial spraying amount execution strategy, and then adjusts the spraying amount in real time according to the detection result signal of the anode pipe dust dynamic detection module.

[0042] When the dust amount displayed by the detection result signal of the anode pipe dust dynamic detection module is greater than the corresponding dust amount under the initial spraying amount execution strategy, the anode pipe inner wall of the horizontal wet electric dust collector is washed by increasing the spraying amount; and when the dust amount displayed by the detection result signal of the anode pipe dust dynamic detection module is less than the corresponding dust amount under the initial spraying amount execution strategy, the anode pipe inner wall of the horizontal wet electric dust collector is washed by decreasing the spraying amount.

[0043] The control module adjusts the initial water level minimum threshold value and maximum threshold value according to the execution content of the spraying system spraying amount dynamic adjustment module, when the spraying system spraying amount dynamic adjustment module executes the increase of the spraying amount to wash the anode pipe inner wall of the horizontal wet electric dust collector, the water level minimum threshold value and the maximum threshold value are adjusted to be higher, and when the spraying system spraying amount dynamic adjustment module executes the decrease of the spraying amount to wash the anode pipe inner wall of the horizontal wet electric dust collector, the water level minimum threshold value and the maximum threshold value are adjusted to be lower.

[0044] The control module adjusts the initial water supplement strategy according to the results of the spraying system water level detection module and the water supplement flow real-time detection module, when the water level detection module is lower than the current set water level minimum threshold value, water supplement is started, and the water supplement flow is dynamically set according to the water supplement flow detected by the current water supplement flow real-time detection module to ensure that the water level in the water tank can be supplemented to the current set water level maximum threshold value within the set water supplement period T1.

[0045] The water supplement execution module is composed of a water supplement pump and a water supplement valve, the input end of the water supplement pump is connected to an external water supplement source, the output end of the water supplement pump is connected to a water supplement pipeline in the water supplement system, and the water supplement valve is arranged on the water supplement pipeline. When the water supplement control instruction is executed, the water supplement pump is started, and the water supplement valve is opened at a set opening degree to supplement water into the water tank at a set flow rate.

[0046] When the water level detection module detects that the water level is always lower than the initial water level minimum threshold or the new water level minimum threshold and always higher than the initial water level maximum threshold or the new water level maximum threshold within the set period T2, the water level is too low or too high, and the water inlet system fails to be stable, and the pipeline leakage problem is considered.

[0047] When the water supplement pipeline flow in the water supplement system is always lower than the set minimum flow or maximum flow of the water supplement system within the set period T2, the water supplement flow is too low or too high, and the pipeline leakage is considered, the warning can prompt the staff to overhaul the water supplement system to avoid causing the water supplement system to stop.

[0048] The beneficial effects of the present application are: the present application detects the water level in the water tank of the spraying system in real time through the spraying system water level detection module, detects the dust amount on the inner wall of the anode pipe through the anode pipe dust dynamic detection module, and detects the real-time water supplement flow of the water supplement system through the water supplement flow real-time detection module, the control module executes the adjusted spraying amount strategy according to the spraying amount dynamic adjustment module of the spraying system to correspondingly adjust the initial water level minimum threshold and the maximum threshold, and then adjusts the initial water supplement strategy according to the results of the spraying system water level detection module and the water supplement flow real-time detection module to obtain a dynamic water supplement strategy, finally, the control module forms a water supplement control instruction according to the dynamic water supplement strategy, and the water supplement execution module can comprehensively use the water level signal, the water supplement flow signal and the spraying amount signal of the spraying system to accurately and stably and efficiently supplement the water tank of the spraying system, avoid water shortage and water overflow, improve the stability of the water supplement system, optimize the operation pressure of the water supplement system, and avoid overload operation of the water supplement system.

[0049] The basic principles, main features and advantages of the present application are shown and described above. It should be understood by those skilled in the art that the present application is not limited by the above examples, and the above examples and descriptions in the specification are only to illustrate the principles of the present application, and various changes and improvements can be made without departing from the spirit and scope of the present application, and these changes and improvements all fall within the scope of the claimed present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A horizontal wet electrostatic precipitator automatic water replenishment control system, characterized by: The anode tube dust dynamic detection module, the spraying system water level detection module, the water supplement flow real-time detection module, the spraying system spraying amount dynamic adjustment module, the control module, the water supplement execution module and the early warning module are included. The anode tube dust dynamic detection module detects the dust amount on the inner wall of the anode tube. The spraying system water level detection module detects the water level in the water tank of the spraying system. The water supplement flow real-time detection module is used for real-time detection of the flow of the water supplement pipeline in the water supplement system. The spraying system spraying amount dynamic adjustment module adjusts the spraying amount in real time according to the detection result signal of the anode tube dust dynamic detection module. The control module is used for setting the initial water level minimum threshold value and the maximum threshold value, and setting the initial water supplement strategy according to the initial water level minimum threshold value and the maximum threshold value. The control module adjusts the initial water level minimum threshold value and the maximum threshold value according to the execution content of the spraying system spraying amount dynamic adjustment module to obtain new water level minimum threshold value and maximum threshold value, and then adjusts the initial water supplement strategy according to the results of the spraying system water level detection module and the water supplement flow real-time detection module to obtain a dynamic water supplement strategy. The control module forms a water supplement control instruction according to the dynamic water supplement strategy.

2. The automatic water replenishment control system for a horizontal wet electric dust collector according to claim 1, characterized in that: The water supplement execution module is used for receiving the water supplement control instruction of the control module, and then supplementing water into the water tank of the spraying system.

3. The automatic water replenishment control system for a horizontal wet electric dust collector according to claim 1, characterized in that: The early warning module interacts with the control module, and is used for safety warning according to the detection results of the spraying system water level detection module and the water supplement flow real-time detection module.

4. The automatic water replenishment control system for a horizontal wet electric dust precipitator according to claim 1, characterized in that: The anode tube dust dynamic detection module detects the dust amount on the inner wall of the anode tube by arranging an electrostatic sensor at the anode tube port of the horizontal wet electric dust collector.

5. The automatic water replenishment control system for a horizontal wet electric dust precipitator according to claim 1, characterized in that: The spraying system water level detection module is an ultrasonic liquid level sensor arranged in the water tank of the spraying system, and detects the water level in the water tank of the spraying system in real time through the ultrasonic liquid level sensor.

6. The automatic water replenishment control system for a horizontal wet electric dust precipitator according to claim 5, characterized in that: The water supplement flow real-time detection module is an electromagnetic flowmeter, and the electromagnetic flowmeter is arranged on the water supplement pipeline of the spraying system. The spraying system spraying amount dynamic adjustment module first sets an initial spraying amount execution strategy, and sets the corresponding dust amount under the initial spraying amount execution strategy, and then adjusts the spraying amount in real time according to the detection result signal of the anode tube dust dynamic detection module. When the dust amount displayed by the detection result signal of the anode tube dust dynamic detection module is greater than the corresponding dust amount under the set initial spraying amount execution strategy, the inner wall of the anode tube of the horizontal wet electric dust collector is flushed by increasing the spraying amount. When the dust amount displayed by the detection result signal of the anode tube dust dynamic detection module is less than the corresponding dust amount under the set initial spraying amount execution strategy, the inner wall of the anode tube of the horizontal wet electric dust collector is flushed by reducing the spraying amount.

7. The automatic water replenishment control system for a horizontal wet electric dust precipitator according to claim 6, characterized in that: The control module adjusts the initial water level minimum threshold value and maximum threshold value according to the execution content of the spray system spray amount dynamic adjustment module; when the spray system spray amount dynamic adjustment module executes to increase the spray amount to flush the inner wall of the anode pipe of the horizontal wet electric dust collector, the water level minimum threshold value and the maximum threshold value are adjusted upward; when the spray system spray amount dynamic adjustment module executes to decrease the spray amount to flush the inner wall of the anode pipe of the horizontal wet electric dust collector, the water level minimum threshold value and the maximum threshold value are adjusted downward; The control module adjusts the initial water replenishment strategy according to the results of the spray system water level detection module and the water replenishment flow real-time detection module; when the water level detection module is lower than the current set water level minimum threshold value, water replenishment is started, and the water replenishment flow is dynamically set according to the water replenishment flow detected by the current water replenishment flow real-time detection module, to ensure that the water level in the water tank can be replenished to the current set water level maximum threshold value within the set water replenishment period T1.

8. The automatic water replenishment control system for a horizontal wet electric dust precipitator according to claim 1, characterized in that: The water replenishment execution module is composed of a water replenishment pump and a water replenishment valve, the input end of the water replenishment pump is connected to an external water replenishment source, the output end of the water replenishment pump is connected to a water replenishment pipeline in the water replenishment system, and the water replenishment valve is arranged on the water replenishment pipeline.

9. The automatic water replenishment control system for a horizontal wet electric dust precipitator according to claim 1, wherein: The warning module performs safety warning according to the detection result of the spray system water level detection module; when the water level detected by the water level detection module is always lower than the initial water level minimum threshold value or the new water level minimum threshold value and is always higher than the initial water level maximum threshold value or the new water level maximum threshold value within the set period T2, water level ultra-low and ultra-high alarm is performed.

10. The automatic water replenishment control system for a horizontal wet electric dust precipitator according to claim 9, wherein: The warning module performs safety warning according to the detection result of the water replenishment flow real-time detection module; when the water replenishment pipeline flow in the water replenishment system is always lower than the set minimum flow or maximum flow of the water replenishment system within the set period T2, water replenishment flow ultra-low and ultra-high alarm is performed.

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