阅读说明：本技术 一种发电厂脱硝反应器积灰智能监测系统及方法 (Intelligent monitoring system and method for accumulated dust of denitration reactor of power plant ) 是由 陈盛广 王军民 康豫军 陈尚军 邓玲惠 王石军 于 2021-06-28 设计创作，主要内容包括：本发明公开了一种发电厂脱硝反应器积灰智能监测系统及方法,包括控制器、中央处理器及若干检测模块,其中,各检测模块均包括载荷传感器组件及数据采集模块,其中,其中,一个检测模块对应一个脱硝反应器支吊架中的吊杆,且载荷传感器组件套接于吊杆上并承受与吊杆相同的载荷,数据采集模块通过多功能电缆与载荷传感器组件相连接,数据采集模块通过控制器与中央处理器相连接,该系统及方法实时对脱硝反应器的积灰进行检测。(The invention discloses an intelligent monitoring system and method for dust deposition of a denitration reactor of a power plant, and the intelligent monitoring system comprises a controller, a central processing unit and a plurality of detection modules, wherein each detection module comprises a load sensor assembly and a data acquisition module, one detection module corresponds to a suspender in a support hanger of the denitration reactor, the load sensor assembly is sleeved on the suspender and bears the same load as the suspender, the data acquisition module is connected with the load sensor assembly through a multifunctional cable, and the data acquisition module is connected with the central processing unit through the controller.)

1. The utility model provides a power plant denitration reactor deposition intelligent monitoring system, a serial communication port, including controller (3), central processing unit (4) and a plurality of detection module, wherein, each detection module all includes load sensor subassembly (1) and data acquisition module (2), wherein, a detection module corresponds the jib in a denitration reactor gallows (5), and load sensor subassembly (1) cup joints on the jib and bears the load the same with the jib, data acquisition module (2) are connected with load sensor subassembly (1) through multifunctional cable (6), data acquisition module (2) are connected with central processing unit (4) through controller (3).

2. The intelligent monitoring system for the ash deposition of the denitration reactor of the power plant as claimed in claim 1, wherein the data acquisition module (2) is connected with the load sensor assembly (1) through a multifunctional cable (6).

3. The intelligent monitoring system for the ash deposition of the denitration reactor of the power plant as claimed in claim 1, wherein, in use, the data acquisition module (2) is attached to the external member through the magnetic seat (7).

4. The intelligent monitoring system for the ash deposition in the denitration reactor of the power plant as claimed in claim 1, wherein the data acquisition module (2) is connected with the controller (3) and the multifunctional cable (6) through a signal receiving and transmitting device (9).

5. The intelligent monitoring system for the ash deposition in the denitration reactor of the power plant as claimed in claim 5, further comprising a power supply (8) for supplying power to the data acquisition module (2) and the signal receiving and transmitting device (9).

6. The intelligent monitoring system for the ash deposition of the denitration reactor of the power plant as claimed in claim 5, wherein the data acquisition module (2) is connected with the controller (3) by a signal receiving and transmitting device (9) in a wireless communication manner.

7. An intelligent monitoring method for the ash deposition of a denitration reactor of a power plant is characterized in that the intelligent monitoring system for the ash deposition of the denitration reactor of the power plant based on the claim 1 comprises the following steps:

the controller (3) utilizes the data acquisition module (2) to acquire a load signal on the suspender through the load sensor assembly (1), and then sends the load signal to the central processing unit (4), the central processing unit (4) obtains a load increment according to the received load on the suspender and the load on the hanger in an initial state, wherein the load increment is used as the soot deposition of the denitration reactor, and when the load increment obtained by calculation has an abnormal condition of sudden change or standard exceeding, the central processing unit (4) automatically sends out an early warning to inform a user that the denitration reactor needs to be cleaned.

8. The intelligent monitoring method for the ash deposition of the denitration reactor of the power plant as claimed in claim 7, further comprising the step of drawing a load-time curve of the support and hanger (5) of the denitration reactor by the central processing unit (4) and displaying the curve.

Technical Field

The invention belongs to the technical field of monitoring, and relates to an intelligent monitoring system and method for dust deposition of a denitration reactor of a power plant.

Background

The electric energy supply of China mainly takes coal-fired power generation as a main part, a large amount of nitrogen oxides are generated in the coal-fired power generation process, the flue gas denitration becomes a necessary condition for commercial operation of a coal-fired power plant, and the flue gas denitration creates good economic and social benefits for the power plant. The flue gas denitration reactor is large in size and weight, the length multiplied by the width multiplied by the height of an inlet flue of a million tower type furnace flue gas denitration reactor is about 20 m multiplied by 10 m multiplied by 25 m, the top of the inlet flue of the flue gas denitration reactor is hung on a boiler steel frame through a support hanger, the total weight of the inlet flue of the flue gas denitration reactor is about 400 tons, the ash deposition amount is about 200 tons when an ash bucket is full of ash, rainwater permeates into the ash deposition, the ash deposition weight is further increased, and a rigid beam and an iron plate of the flue gas denitration reactor are deformed, subsided, cracked and leaked, a support hanger, and the like due to the ash deposition and overload in a power plant. In order to improve the stress safety of the flue gas denitration reactor, technicians need to check the ash deposition amount in the ash bucket through an observation window on site at regular intervals, and once the ash deposition amount is found to be large, the ash deposition in the ash bucket is cleaned. Its disadvantages are represented by: (1) the flue at the inlet of the flue gas denitration reactor is arranged in the open air and suspended (the elevation is about 90 meters), the whole outer part is sealed by a heat-insulating layer, and the position near the top rigid beam is not provided with a routing inspection platform, so that the deformation and cracking of the rigid beam and the sealing iron plate can not be inspected. (2) The ash bucket is large in size, the weight of the accumulated ash in the ash bucket cannot be accurately mastered through macroscopic observation, and particularly, the weight of the accumulated ash cannot be evaluated after rainwater permeates. (3) The weight of the accumulated dust cannot be found out in time to exceed the standard in regular inspection, and the efficiency is low.

Disclosure of Invention

The invention aims to overcome the defects of the prior art and provides an intelligent monitoring system and method for the deposition of the denitration reactor of a power plant.

In order to achieve the purpose, the intelligent monitoring system for the ash deposition of the denitration reactor of the power plant comprises a controller, a central processing unit and a plurality of detection modules, wherein each detection module comprises a load sensor assembly and a data acquisition module, one detection module corresponds to a suspender in a support hanger of the denitration reactor, the load sensor assembly is sleeved on the suspender and bears the same load as the suspender, the data acquisition module is connected with the load sensor assembly through a multifunctional cable, and the data acquisition module is connected with the central processing unit through the controller.

The data acquisition module is connected with the load sensor assembly through a multifunctional cable.

When the magnetic seat is used, the data acquisition module is adsorbed on the external component through the magnetic seat.

The data acquisition module is connected with the controller and the multifunctional cable through the signal receiving and transmitting device.

The device also comprises a power supply for supplying power to the data acquisition module and the signal receiving and transmitting device.

The data acquisition module is connected with the controller by a signal receiving and transmitting device in a wireless communication mode.

An intelligent monitoring method for accumulated dust of a denitration reactor of a power plant comprises the following steps:

the controller utilizes the data acquisition module to acquire a load signal on the suspender through the load sensor assembly and then sends the load signal to the central processing unit, the central processing unit obtains a load increment according to the received load on the suspender and the load in an initial state, wherein the load increment is used as the soot deposition of the denitration reactor, and when the load increment obtained by calculation has an abnormal condition of sudden change or exceeding the standard, the central processing unit automatically sends out an early warning to inform a user that the denitration reactor needs to be cleaned.

The method also comprises the step that the central processing unit draws and displays a load-time curve graph of the support and hanger of the denitration reactor.

The invention has the following beneficial effects:

when the intelligent monitoring system and the intelligent monitoring method for the ash deposition of the power plant denitration reactor are in specific operation, the controller utilizes the data acquisition module to acquire the load signal on the hanger rod through the load sensor assembly and then sends the load signal to the central processing unit, and the central processing unit judges whether the dust deposition of the denitration reactor needs to be cleaned according to the received load signal so as to realize real-time detection of the ash deposition of the denitration reactor.

Drawings

FIG. 1a is a schematic structural view of the present invention;

FIG. 1b is a schematic diagram of the present invention;

FIG. 2 is a circuit diagram of the present invention;

FIG. 3a is a schematic structural view of the load cell assembly 1;

FIG. 3b is a cross-sectional view of the A-A square of FIG. 3 a;

fig. 4 is a schematic structural diagram of the data acquisition module 2.

Wherein, 1 is a load sensor assembly, 2 is a data acquisition module, 3 is a controller, 4 is a central processing unit, 5 is a denitration reactor support hanger, 6 is a multifunctional cable, 7 is a magnetic seat, 8 is a power supply, and 9 is a signal receiving and transmitting device.

Detailed Description

In order to make the technical solutions of the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, not all of the embodiments, and are not intended to limit the scope of the present disclosure. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present disclosure. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

There is shown in the drawings a schematic block diagram of a disclosed embodiment in accordance with the invention. The figures are not drawn to scale, wherein certain details are exaggerated and possibly omitted for clarity of presentation. The shapes of various regions, layers and their relative sizes and positional relationships shown in the drawings are merely exemplary, and deviations may occur in practice due to manufacturing tolerances or technical limitations, and a person skilled in the art may additionally design regions/layers having different shapes, sizes, relative positions, according to actual needs.

Referring to fig. 1a to 4, the intelligent monitoring system for the ash deposition of the denitration reactor of the power plant comprises a controller 3, a central processing unit 4 and a plurality of detection modules, wherein each detection module comprises a load sensor assembly 1 and a data acquisition module 2, one detection module corresponds to a suspender in a support hanger 5 of the denitration reactor, the load sensor assembly 1 is sleeved on the suspender and bears the same load as the suspender, the data acquisition module 2 is connected with the load sensor assembly 1 through a multifunctional cable 6, and the data acquisition module 2 is connected with the central processing unit 4 through the controller 3;

when the multifunctional wireless data acquisition device is used, the data acquisition module 2 is adsorbed on an external component through the magnetic seat 7, the data acquisition module 2 is connected with the controller 3 and the multifunctional cable 6 through the signal receiving and sending device 9, and power is supplied to the data acquisition module 2 and the signal receiving and sending device 9 through the power supply 8, wherein the data acquisition module 2 is connected with the controller 3 through the signal receiving and sending device 9 in a wireless communication mode.

The specific working process of the invention is as follows:

the load sensor assembly 1 is sleeved on a suspender in a support hanger 5 of the denitration reactor, the data acquisition module 2 is connected with the load sensor assembly 1 through a multifunctional cable 6, the controller 3 acquires a load signal on the suspender through the load sensor assembly 1 by utilizing the data acquisition module 2, then the load is sent to a central processing unit 4, the central processing unit 4 compares the received load on the suspender with the load in the initial state to obtain the load increment, wherein, the load increment is the ash deposition amount, when the load increment obtained by calculation has the abnormal condition of sudden change or standard exceeding, namely, the ash deposition amount of the denitration reactor exceeds the preset value or the ash deposition amount of the denitration reactor has sudden change, the central processing unit 4 automatically gives out early warning, and informing a user that the denitration reactor needs to be subjected to ash removal, and when the load increment is smaller than the preset value, removing the alarm signal.

In addition, a user sends a request instruction to the central processing unit 4 through the terminal, and after receiving the request instruction, the central processing unit 4 draws a load-time curve graph of the denitration reactor support and hanger 5 and sends the load-time curve graph to the terminal, so that the user can check the load-time curve graph of the denitration reactor support and hanger 5.