Method and system for controlling state of flue gas entering tower

Abstract

The invention provides a method and system for controlling the state of flue gas entering a tower. The method comprises the steps that a flue gas state monitoring and control device is used for monitoring multiple pieces of temperature data, multiple pieces of pressure data and the dust content of the flue gas entering the tower in real time; determining a first adjusting instruction of the flue gas entering the tower according to the multiple pieces of temperature data; determining a second adjusting instruction of the tower-entering flue gas according to the plurality of pressure data; determining a third adjusting instruction of the tower-entering flue gas according to the dust content; and adjusting and controlling the flue gas state monitoring and control device based on the first adjusting instruction, the second adjusting instruction and the third adjusting instruction to obtain the adjusted tower-entering flue gas. According to the technical scheme provided by the invention, the data of the flue gas entering the tower can be monitored in real time and adjusted in time, so that the stability of the COAP flue gas condition is ensured, and safe and stable operation is realized.

Description

Technical Field

[0001] The present application relates to the technical field of flue gas control entering a tower, and in particular to a method and system for controlling the state of flue gas entering a tower. Background Art

[0002] Low-temperature flue gas pollutant near-zero emission control technology COAP first needs to cool the flue gas to the sub-zero temperature zone, which requires a large cooling load, so there are high requirements for the flue gas conditions entering the flue gas system, such as temperature, pressure, dust, etc. At present, the existing technology is unstable in controlling the flue gas conditions entering the tower, which makes the implementation of low-temperature flue gas pollutant near-zero emission control technology less stable and safe. Summary of the invention

[0003] The present application provides a method and system for controlling the state of flue gas entering a tower, so as to at least solve the technical problem of unstable control of the flue gas entering a tower in the prior art.

[0004] The first embodiment of the present application provides a method for controlling the state of flue gas entering a tower, the method comprising:

[0005] Use the flue gas status monitoring and control device to monitor multiple temperature data, multiple pressure data and dust content of the flue gas entering the tower in real time;

[0006] Determine a first adjustment instruction for the flue gas entering the tower according to the multiple temperature data;

[0007] Determine a second adjustment instruction for the flue gas entering the tower according to the multiple pressure data;

[0008] Determining a third adjustment instruction for the flue gas entering the tower according to the dust content;

[0009] Based on the first adjustment instruction, the second adjustment instruction, and the third adjustment instruction, the flue gas state monitoring and control device is adjusted and controlled to obtain the adjusted in-tower flue gas.

[0010] Preferably, the flue gas state monitoring and control device includes: an air preheater, a boiler induced draft fan, a flue gas booster fan, an emergency sprinkler, a flue gas spray cooling tower, a first pressure gauge, a second pressure gauge, a third pressure gauge, a first temperature gauge, a second temperature gauge, a third temperature gauge and a dust monitor;

[0011] One end of the air preheater is connected to the flue gas duct after combustion of the boiler, and the other end is connected to the boiler induced draft fan;

[0012] The other end of the boiler induced draft fan is connected to one end of the flue gas booster fan, and one end of the flue gas booster fan is connected to one end of the emergency sprinkler;

[0013] The other end of the emergency sprinkler is connected to the flue gas spray cooling tower;

[0014] The first pressure gauge and the first temperature gauge are arranged between the boiler induced draft fan and the flue gas booster fan;

[0015] The second pressure gauge and the second temperature gauge are arranged between the flue gas booster fan and the emergency sprinkler;

[0016] The third pressure gauge and the third temperature gauge are arranged between the emergency sprinkler and the flue gas spray cooling tower;

[0017] The dust monitor is arranged between the third temperature meter and the flue gas spray cooling tower.

[0018] Furthermore, the first pressure gauge is used to monitor the first flue gas pressure data between the boiler induced draft fan and the flue gas booster fan;

[0019] The second pressure gauge is used to monitor the second flue gas pressure data between the flue gas booster fan and the emergency sprinkler;

[0020] The third pressure gauge is used to monitor the third flue gas pressure data between the emergency sprinkler and the flue gas spray cooling tower;

[0021] The first temperature meter is used to monitor the first flue gas temperature data between the boiler induced draft fan and the flue gas booster fan;

[0022] The second temperature meter is used to monitor the second flue gas temperature data between the flue gas booster fan and the emergency sprinkler;

[0023] The third temperature meter is used to monitor the third flue gas temperature data between the emergency sprinkler and the flue gas spray cooling tower;

[0024] The dust monitor is used to monitor the dust content of the flue gas before entering the flue gas spray cooling tower;

[0025] Wherein, the multiple temperature data include: first flue gas temperature data, second flue gas temperature data, and third flue gas temperature data;

[0026] The plurality of pressure data include: first flue gas pressure data, second flue gas pressure data, and third flue gas pressure data.

[0027] Further, the determining the first adjustment instruction of the flue gas entering the tower according to the multiple temperature data includes:

[0028] When the first flue gas temperature data and / or the second flue gas temperature data is greater than a preset first temperature threshold, a regulation instruction is generated to increase the air flow of the air preheater and to open the emergency sprinkler;

[0029] When the first flue gas temperature data and / or the second flue gas temperature data is less than or equal to a preset first temperature threshold, and the third flue gas temperature data is greater than a preset second temperature threshold, an adjustment instruction for opening the emergency sprinkler is generated.

[0030] Furthermore, the method further comprises:

[0031] When the first flue gas temperature data and / or the second flue gas temperature data is greater than a preset first temperature threshold, an alarm is issued.

[0032] Further, the determining the second adjustment instruction of the flue gas entering the tower according to the multiple pressure data includes:

[0033] When the second flue gas pressure data and the third flue gas pressure data are less than or equal to a preset first pressure threshold, and the first flue gas pressure data is greater than a preset second pressure threshold, generating an adjustment instruction to reduce the frequency of the boiler induced draft fan;

[0034] When the second flue gas pressure data and the third flue gas pressure data are less than or equal to a preset first pressure threshold, and the first flue gas pressure data is less than a preset third pressure threshold, generating an adjustment instruction to increase the frequency of the boiler induced draft fan;

[0035] When the second flue gas pressure data and / or the third flue gas pressure data is greater than a preset first pressure threshold, an adjustment instruction is generated to reduce the frequency of the flue gas booster fan, and then based on the first flue gas pressure data, an adjustment instruction is generated to adjust the frequency of the boiler induced draft fan.

[0036] Further, the third adjustment instruction for determining the flue gas entering the tower according to the dust content includes:

[0037] When the dust content of the flue gas entering the tower is greater than a preset dust content threshold, a regulation instruction for starting the emergency sprinkler is generated;

[0038] Wherein, the emergency sprinkler includes: a circulating water circuit and a fire water circuit, and the circulating water circuit is used first. If the pressure of the circulating water circuit is insufficient or zero, the fire water circuit is used for supplementation.

[0039] The second embodiment of the present application proposes a flue gas state control system, comprising:

[0040] A monitoring module is used to monitor multiple temperature data, multiple pressure data and dust content of the flue gas entering the tower in real time using a flue gas state monitoring and control device;

[0041] A first determining module, used for determining a first regulating instruction for the inlet flue gas according to the plurality of temperature data;

[0042] A second determining module, used for determining a second regulating instruction for the flue gas entering the tower according to the plurality of pressure data;

[0043] A third determining module, used for determining a third regulating instruction of the flue gas entering the tower according to the dust content;

[0044] The control module is used to adjust and control the flue gas state monitoring and control device based on the first adjustment instruction, the second adjustment instruction, and the third adjustment instruction to obtain the adjusted in-tower flue gas.

[0045] The third aspect of the present application provides an electronic device, comprising: a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein when the processor executes the program, the method described in the first aspect is implemented.

[0046] A fourth aspect of the present application provides a computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the method described in the first aspect of the present application.

[0047] The technical solution provided by the embodiments of the present application brings at least the following beneficial effects:

[0048] The present application proposes a method and system for controlling the state of flue gas entering the tower, the method comprising: using a flue gas state monitoring and control device to monitor multiple temperature data, multiple pressure data and dust content of the flue gas entering the tower in real time; determining a first adjustment instruction for the flue gas entering the tower according to the multiple temperature data; determining a second adjustment instruction for the flue gas entering the tower according to the multiple pressure data; determining a third adjustment instruction for the flue gas entering the tower according to the dust content; adjusting and controlling the flue gas state monitoring and control device based on the first adjustment instruction, the second adjustment instruction and the third adjustment instruction to obtain the adjusted flue gas entering the tower. The technical solution proposed in the present application can monitor the flue gas data entering the tower in real time and make timely adjustments to ensure the stability of the COAP flue gas conditions and achieve safe and stable operation.

[0049] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become apparent from the description below, or will be learned through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0050] The above and / or additional aspects and advantages of the present application will become apparent and easily understood from the following description of the embodiments in conjunction with the accompanying drawings, in which:

[0051] Figure 1 A flow chart of a method for controlling the state of flue gas entering a tower according to an embodiment of the present application;

[0052] Figure 2 A structural diagram of a smoke state monitoring and control device provided according to an embodiment of the present application;

[0053] Figure 3 This is a first structural diagram of a flue gas state control system provided according to an embodiment of the present application;

[0054] Figure 4 A second structural diagram of a flue gas state control system provided according to an embodiment of the present application;

[0055] Reference numerals

[0056] Air preheater 1, boiler induced draft fan 2, flue gas booster fan 3, emergency sprinkler 4, flue gas spray cooling tower 5, first pressure gauge 6, second pressure gauge 7, third pressure gauge 8, first temperature gauge 9, second temperature gauge 10, third temperature gauge 11, dust monitor 12. DETAILED DESCRIPTION

[0057] Embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present application, and should not be construed as limiting the present application.

[0058] The present application proposes a method and system for controlling the state of flue gas entering the tower, the method comprising: using a flue gas state monitoring and control device to monitor multiple temperature data, multiple pressure data and dust content of the flue gas entering the tower in real time; determining a first adjustment instruction for the flue gas entering the tower according to the multiple temperature data; determining a second adjustment instruction for the flue gas entering the tower according to the multiple pressure data; determining a third adjustment instruction for the flue gas entering the tower according to the dust content; adjusting and controlling the flue gas state monitoring and control device based on the first adjustment instruction, the second adjustment instruction and the third adjustment instruction to obtain the adjusted flue gas entering the tower. The technical solution proposed in the present application can monitor the flue gas data entering the tower in real time and make timely adjustments to ensure the stability of the COAP flue gas conditions and achieve safe and stable operation.

[0059] A method and system for controlling the state of flue gas entering a tower according to an embodiment of the present application will be described below with reference to the accompanying drawings.

[0060] Embodiment 1

[0061] Figure 1 Flow chart of a method for controlling flue gas state entering a tower according to an embodiment of the present application, as shown in FIG. Figure 1 As shown, the method includes:

[0062] Step 1: Use the flue gas status monitoring and control device to monitor multiple temperature data, multiple pressure data and dust content of the flue gas entering the tower in real time.

[0063] In the embodiments of the present disclosure, Figure 2 As shown, the flue gas state monitoring and control device includes: an air preheater 1, a boiler induced draft fan 2, a flue gas booster fan 3, an emergency sprinkler 4, a flue gas spray cooling tower 5, a first pressure gauge 6, a second pressure gauge 7, a third pressure gauge 8, a first thermometer 9, a second thermometer 10, a third thermometer 11 and a dust monitor 12;

[0064] One end of the air preheater 1 is connected to the flue gas pipeline after the boiler combustion, and the other end is connected to the boiler induced draft fan 2;

[0065] The other end of the boiler induced draft fan 2 is connected to one end of the flue gas booster fan 3, and one end of the flue gas booster fan 3 is connected to one end of the emergency sprinkler 4;

[0066] The other end of the emergency sprinkler 4 is connected to the flue gas spray cooling tower 5;

[0067] The first pressure gauge 6 and the first temperature gauge 9 are arranged between the boiler induced draft fan 2 and the flue gas booster fan 3;

[0068] The second pressure gauge 7 and the second temperature gauge 10 are arranged between the flue gas booster fan 3 and the emergency sprinkler 4;

[0069] The third pressure gauge 8 and the third temperature gauge 11 are arranged between the emergency sprinkler 4 and the flue gas spray cooling tower 5;

[0070] The dust monitor 12 is arranged between the third temperature meter 11 and the flue gas spray cooling tower 5 .

[0071] It should be noted that Figure 2 In the embodiment, the air preheater 1 is provided with an air inlet and an air outlet at the left and right ends thereof;

[0072] Figure 2 Among them, P1 is the first pressure gauge 6, P2 is the second pressure gauge 7, P3 is the third pressure gauge 8, T1 is the first temperature gauge 9, T2 is the second temperature gauge 10, and 3 is the third temperature gauge 11.

[0073] Specifically, the first pressure gauge 6 is used to monitor the first flue gas pressure data between the boiler induced draft fan 2 and the flue gas booster fan 3;

[0074] The second pressure gauge 7 is used to monitor the second flue gas pressure data between the flue gas booster fan 3 and the emergency sprinkler 4;

[0075] The third pressure gauge 8 is used to monitor the third flue gas pressure data between the emergency sprinkler 4 and the flue gas spray cooling tower 5;

[0076] The first temperature meter 9 is used to monitor the first flue gas temperature data between the boiler induced draft fan 2 and the flue gas booster fan 3;

[0077] The second temperature meter 10 is used to monitor the second flue gas temperature data between the flue gas booster fan 3 and the emergency sprinkler 4;

[0078] The third temperature meter 11 is used to monitor the third flue gas temperature data between the emergency sprinkler 4 and the flue gas spray cooling tower 5;

[0079] The dust monitor 12 is used to monitor the dust content of the flue gas before entering the flue gas spray cooling tower 5;

[0080] Wherein, the multiple temperature data include: first flue gas temperature data, second flue gas temperature data, and third flue gas temperature data;

[0081] The plurality of pressure data include: first flue gas pressure data, second flue gas pressure data, and third flue gas pressure data.

[0082] Step 2: determining a first adjustment instruction for the flue gas entering the tower according to the plurality of temperature data;

[0083] Determine a second adjustment instruction for the flue gas entering the tower according to the multiple pressure data;

[0084] A third adjustment instruction for the flue gas entering the tower is determined according to the dust content.

[0085] In an embodiment of the present disclosure, determining the first adjustment instruction of the flue gas entering the tower according to the plurality of temperature data includes:

[0086] When the first flue gas temperature data and / or the second flue gas temperature data is greater than a preset first temperature threshold, an adjustment instruction is generated to increase the air flow of the air preheater 1 and to open the emergency sprinkler 4; wherein the first temperature threshold shown may be 120°C;

[0087] When the first flue gas temperature data and / or the second flue gas temperature data is less than or equal to a preset first temperature threshold, and the third flue gas temperature data is greater than a preset second temperature threshold, an adjustment instruction to open the emergency sprinkler 4 is generated, wherein the second temperature threshold may be 100°C.

[0088] Furthermore, the method further comprises:

[0089] When the first flue gas temperature data and / or the second flue gas temperature data is greater than a preset first temperature threshold, an alarm is issued.

[0090] Specifically, in order to control the inlet flue gas temperature, the original air preheater 1 is relied on in the boiler system, and an emergency sprinkler 4 is added to the inlet flue gas; ① The normal working temperature of T1 and T2 is less than 100°C. When the temperature is greater than 120°C, an alarm is triggered to increase the air flow of the air preheater, cool the flue gas for the first time, and the emergency sprinkler is automatically turned on to control the flue gas temperature below 100°C. ② If T1 and T2 do not reach the alarm value, and T3 is greater than 100°C, the air preheater is not adjusted, and the emergency sprinkler is automatically turned on to cool the flue gas.

[0091] In an embodiment of the present disclosure, determining the second adjustment instruction of the flue gas entering the tower according to the plurality of pressure data includes:

[0092] When the second flue gas pressure data and the third flue gas pressure data are less than or equal to a preset first pressure threshold, and the first flue gas pressure data is greater than a preset second pressure threshold, generating an adjustment instruction to reduce the frequency of the boiler induced draft fan;

[0093] Wherein, the first pressure threshold may be 10Kpa, and the second pressure threshold may be 2Kpa;

[0094] When the second flue gas pressure data and the third flue gas pressure data are less than or equal to a preset first pressure threshold, and the first flue gas pressure data is less than a preset third pressure threshold, generating an adjustment instruction to increase the frequency of the boiler induced draft fan;

[0095] Wherein, the third pressure threshold may be 0Kpa;

[0096] When the second flue gas pressure data and / or the third flue gas pressure data is greater than a preset first pressure threshold, an adjustment instruction is generated to reduce the frequency of the flue gas booster fan, and then based on the first flue gas pressure data, an adjustment instruction is generated to adjust the frequency of the boiler induced draft fan.

[0097] Specifically, pressure control involves the matching of the boiler induced draft fan 2 and the flue gas booster fan 3 of the power plant. It is necessary to control the pressure P1 between the two fans at 0-2Kpa. The control method is to adjust by controlling the frequency of the two fans. After adjusting the working state of the flue gas booster fan 3, the frequency is fixed. If P1 is greater than 2Kpa, the frequency of the boiler induced draft fan 2 is reduced. If the pressure is less than 0Kpa, the frequency of the boiler induced draft fan 2 is increased. If P2 and P3 exceed 10Kpa and exceed the working range, the frequency of the flue gas booster fan 3 needs to be reduced. The adjustment method of the boiler induced draft fan 2 is the same as before.

[0098] In the embodiment of the present disclosure, the third adjustment instruction for determining the flue gas entering the tower according to the dust content includes:

[0099] When the dust content of the flue gas entering the tower is greater than the preset dust content threshold, an adjustment instruction to start the emergency sprinkler is generated; wherein the dust content threshold can be 5mg / Nm 3 ;

[0100] Wherein, the emergency sprinkler includes: a circulating water circuit and a fire water circuit, and the circulating water circuit is used first. If the pressure of the circulating water circuit is insufficient or zero, the fire water circuit is used for supplementation.

[0101] Specifically, the inlet flue gas of COAP is drawn from the boiler after dust removal, so the dust content of the inlet flue gas is normally less than 5mg / Nm 3 To prevent the nozzle or filler from clogging in the spray system, a dust monitor 12 is installed at the inlet flue for monitoring. If the dust monitoring value is greater than 5mg / Nm 3 , start the emergency sprinkler 4, and perform the initial washing of the flue gas before entering the tower to reduce the dust concentration. If the dust concentration is greater than the alarm value for a long time, it means that the dust removal system has failed and needs to be shut down for maintenance. The emergency sprinkler is equipped with two circuits of circulating water and fire water. Circulating water is used first. If the circulating water pressure is insufficient or there is no circulating water, use fire water to supplement it.

[0102] Step 3: Based on the first adjustment instruction, the second adjustment instruction, and the third adjustment instruction, the flue gas state monitoring and control device is adjusted to obtain the adjusted inlet flue gas.

[0103] It should be noted that the flue gas state control method proposed in this implementation can continuously monitor the temperature, pressure and dust concentration of the flue gas, and automatically adjust the values ​​that exceed the warning values ​​to ensure the stability of the COAP flue gas conditions and achieve safe and smooth operation.

[0104] In summary, the method for controlling the flue gas state entering the tower proposed in this embodiment can monitor the flue gas data entering the tower in real time, automatically adjust the value exceeding the warning value, ensure the stability of the COAP flue gas conditions, and achieve safe and stable operation.

[0105] Embodiment 2

[0106] Figure 3 FIG. 1 is a structural diagram of a flue gas state control system according to an embodiment of the present application, such as Figure 3 As shown, the system comprises:

[0107] The monitoring module 100 is used to monitor multiple temperature data, multiple pressure data and dust content of the flue gas entering the tower in real time using the flue gas state monitoring and control device;

[0108] It should be noted that the flue gas state monitoring and control device includes: an air preheater, a boiler induced draft fan, a flue gas booster fan, an emergency sprinkler, a flue gas spray cooling tower, a first pressure gauge, a second pressure gauge, a third pressure gauge, a first temperature gauge, a second temperature gauge, a third temperature gauge and a dust monitor;

[0109] One end of the air preheater is connected to the flue gas duct after combustion of the boiler, and the other end is connected to the boiler induced draft fan;

[0110] The other end of the boiler induced draft fan is connected to one end of the flue gas booster fan, and one end of the flue gas booster fan is connected to one end of the emergency sprinkler;

[0111] The other end of the emergency sprinkler is connected to the flue gas spray cooling tower;

[0112] The first pressure gauge and the first temperature gauge are arranged between the boiler induced draft fan and the flue gas booster fan;

[0113] The second pressure gauge and the second temperature gauge are arranged between the flue gas booster fan and the emergency sprinkler;

[0114] The third pressure gauge and the third temperature gauge are arranged between the emergency sprinkler and the flue gas spray cooling tower;

[0115] The dust monitor is arranged between the third temperature meter and the flue gas spray cooling tower.

[0116] The first pressure gauge is used to monitor the first flue gas pressure data between the boiler induced draft fan and the flue gas booster fan;

[0117] The second pressure gauge is used to monitor the second flue gas pressure data between the flue gas booster fan and the emergency sprinkler;

[0118] The third pressure gauge is used to monitor the third flue gas pressure data between the emergency sprinkler and the flue gas spray cooling tower;

[0119] The first temperature meter is used to monitor the first flue gas temperature data between the boiler induced draft fan and the flue gas booster fan;

[0120] The second temperature meter is used to monitor the second flue gas temperature data between the flue gas booster fan and the emergency sprinkler;

[0121] The third temperature meter is used to monitor the third flue gas temperature data between the emergency sprinkler and the flue gas spray cooling tower;

[0122] The dust monitor is used to monitor the dust content of the flue gas before entering the flue gas spray cooling tower;

[0123] Wherein, the multiple temperature data include: first flue gas temperature data, second flue gas temperature data, and third flue gas temperature data;

[0124] The plurality of pressure data include: first flue gas pressure data, second flue gas pressure data, and third flue gas pressure data.

[0125] A first determination module 200, configured to determine a first adjustment instruction for the flue gas entering the tower according to the plurality of temperature data;

[0126] The first determination module 200 is further used to determine the second adjustment instruction of the flue gas entering the tower according to the multiple pressure data;

[0127] The first determination module 200 is further used to determine a third adjustment instruction of the flue gas entering the tower according to the dust content;

[0128] The control module 300 is used to adjust and control the flue gas state monitoring and control device based on the first adjustment instruction, the second adjustment instruction, and the third adjustment instruction to obtain the adjusted inlet flue gas.

[0129] Furthermore, the first determining module 200 is further configured to:

[0130] When the first flue gas temperature data and / or the second flue gas temperature data is greater than a preset first temperature threshold, a regulation instruction is generated to increase the air flow of the air preheater and to open the emergency sprinkler;

[0131] When the first flue gas temperature data and / or the second flue gas temperature data is less than or equal to a preset first temperature threshold, and the third flue gas temperature data is greater than a preset second temperature threshold, an adjustment instruction for opening the emergency sprinkler is generated.

[0132] Further, such as Figure 4 As shown, the system further includes: an alarm module 400;

[0133] The alarm module 400 is used to generate an alarm when the first flue gas temperature data and / or the second flue gas temperature data is greater than a preset first temperature threshold.

[0134] Furthermore, the first determining module 200 is further configured to:

[0135] When the second flue gas pressure data and the third flue gas pressure data are less than or equal to a preset first pressure threshold, and the first flue gas pressure data is greater than a preset second pressure threshold, generating an adjustment instruction to reduce the frequency of the boiler induced draft fan;

[0136] When the second flue gas pressure data and the third flue gas pressure data are less than or equal to a preset first pressure threshold, and the first flue gas pressure data is less than a preset third pressure threshold, generating an adjustment instruction to increase the frequency of the boiler induced draft fan;

[0137] When the second flue gas pressure data and / or the third flue gas pressure data is greater than a preset first pressure threshold, an adjustment instruction is generated to reduce the frequency of the flue gas booster fan, and then based on the first flue gas pressure data, an adjustment instruction is generated to adjust the frequency of the boiler induced draft fan.

[0138] Furthermore, the first determining module 200 is further configured to:

[0139] When the dust content of the flue gas entering the tower is greater than a preset dust content threshold, a regulation instruction for starting the emergency sprinkler is generated;

[0140] Wherein, the emergency sprinkler includes: a circulating water circuit and a fire water circuit, and the circulating water circuit is used first. If the pressure of the circulating water circuit is insufficient or zero, the fire water circuit is used for supplementation.

[0141] In summary, the flue gas state control system proposed in this embodiment can monitor the flue gas data entering the tower in real time and make timely adjustments to ensure the stability of the COAP flue gas conditions and achieve safe and stable operation.

[0142] Embodiment 3

[0143] In order to implement the above embodiments, the present disclosure further proposes an electronic device, including: a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein when the processor executes the program, the method described in Embodiment 1 is implemented.

[0144] Embodiment 4

[0145] In order to implement the above embodiments, the present disclosure further proposes a computer-readable storage medium on which a computer program is stored. When the program is executed by a processor, the method described in the first embodiment is implemented.

[0146] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0147] Any process or method description in a flowchart or otherwise described herein may be understood to represent a module, fragment or portion of code comprising one or more executable instructions for implementing the steps of a custom logical function or process, and the scope of the preferred embodiments of the present application includes alternative implementations in which functions may not be performed in the order shown or discussed, including performing functions in a substantially simultaneous manner or in the reverse order depending on the functions involved, which should be understood by technicians in the technical field to which the embodiments of the present application belong.

[0148] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present application. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present application.

Claims

1. A method for controlling the state of flue gas entering a tower, characterized in that: The method comprises: Use the flue gas status monitoring and control device to monitor multiple temperature data, multiple pressure data and dust content of the flue gas entering the tower in real time; Determine a first adjustment instruction for the flue gas entering the tower according to the multiple temperature data; Determine a second adjustment instruction for the flue gas entering the tower according to the multiple pressure data; Determining a third adjustment instruction for the flue gas entering the tower according to the dust content; Based on the first adjustment instruction, the second adjustment instruction, and the third adjustment instruction, the flue gas state monitoring and control device is adjusted and controlled to obtain the adjusted in-tower flue gas.

2. The method according to claim 1, characterized in that The flue gas state monitoring and control device comprises: an air preheater, a boiler induced draft fan, a flue gas booster fan, an emergency sprinkler, a flue gas spray cooling tower, a first pressure gauge, a second pressure gauge, a third pressure gauge, a first temperature gauge, a second temperature gauge, a third temperature gauge and a dust monitor; One end of the air preheater is connected to the flue gas duct after combustion of the boiler, and the other end is connected to the boiler induced draft fan; The other end of the boiler induced draft fan is connected to one end of the flue gas booster fan, and one end of the flue gas booster fan is connected to one end of the emergency sprinkler; The other end of the emergency sprinkler is connected to the flue gas spray cooling tower; The first pressure gauge and the first temperature gauge are arranged between the boiler induced draft fan and the flue gas booster fan; The second pressure gauge and the second temperature gauge are arranged between the flue gas booster fan and the emergency sprinkler; The third pressure gauge and the third temperature gauge are arranged between the emergency sprinkler and the flue gas spray cooling tower; The dust monitor is arranged between the third temperature meter and the flue gas spray cooling tower.

3. The method according to claim 2, characterized in that The first pressure gauge is used to monitor the first flue gas pressure data between the boiler induced draft fan and the flue gas booster fan; The second pressure gauge is used to monitor the second flue gas pressure data between the flue gas booster fan and the emergency sprinkler; The third pressure gauge is used to monitor the third flue gas pressure data between the emergency sprinkler and the flue gas spray cooling tower; The first temperature meter is used to monitor the first flue gas temperature data between the boiler induced draft fan and the flue gas booster fan; The second temperature meter is used to monitor the second flue gas temperature data between the flue gas booster fan and the emergency sprinkler; The third temperature meter is used to monitor the third flue gas temperature data between the emergency sprinkler and the flue gas spray cooling tower; The dust monitor is used to monitor the dust content of the flue gas before entering the flue gas spray cooling tower; Wherein, the multiple temperature data include: first flue gas temperature data, second flue gas temperature data, and third flue gas temperature data; The plurality of pressure data include: first flue gas pressure data, second flue gas pressure data, and third flue gas pressure data.

4. The method according to claim 3, characterized in that The determining the first adjustment instruction of the flue gas entering the tower according to the plurality of temperature data comprises: When the first flue gas temperature data and / or the second flue gas temperature data is greater than a preset first temperature threshold, a regulation instruction is generated to increase the air flow of the air preheater and to open the emergency sprinkler; When the first flue gas temperature data and / or the second flue gas temperature data is less than or equal to a preset first temperature threshold, and the third flue gas temperature data is greater than a preset second temperature threshold, an adjustment instruction for opening the emergency sprinkler is generated.

5. The method according to claim 4, characterized in that The method further comprises: When the first flue gas temperature data and / or the second flue gas temperature data is greater than a preset first temperature threshold, an alarm is issued.

6. The method according to claim 4, characterized in that The determining the second adjustment instruction for the flue gas entering the tower according to the plurality of pressure data comprises: When the second flue gas pressure data and the third flue gas pressure data are less than or equal to a preset first pressure threshold, and the first flue gas pressure data is greater than a preset second pressure threshold, generating an adjustment instruction to reduce the frequency of the boiler induced draft fan; When the second flue gas pressure data and the third flue gas pressure data are less than or equal to a preset first pressure threshold, and the first flue gas pressure data is less than a preset third pressure threshold, generating an adjustment instruction to increase the frequency of the boiler induced draft fan; When the second flue gas pressure data and / or the third flue gas pressure data is greater than a preset first pressure threshold, an adjustment instruction is generated to reduce the frequency of the flue gas booster fan, and then based on the first flue gas pressure data, an adjustment instruction is generated to adjust the frequency of the boiler induced draft fan.

7. The method according to claim 4, characterized in that The third adjustment instruction for determining the flue gas entering the tower according to the dust content includes: When the dust content of the flue gas entering the tower is greater than a preset dust content threshold, a regulation instruction for starting the emergency sprinkler is generated; Wherein, the emergency sprinkler includes: a circulating water circuit and a fire water circuit, and the circulating water circuit is used first. If the pressure of the circulating water circuit is insufficient or zero, the fire water circuit is used for supplementation.

8. A flue gas state control system, characterized in that: The system comprises: A monitoring module is used to monitor multiple temperature data, multiple pressure data and dust content of the flue gas entering the tower in real time using a flue gas state monitoring and control device; A first determining module, used for determining a first regulating instruction for the inlet flue gas according to the plurality of temperature data; The first determination module is further used to determine the second adjustment instruction of the flue gas entering the tower according to the multiple pressure data; The first determination module is further used to determine a third adjustment instruction of the flue gas entering the tower according to the dust content; The control module is used to adjust and control the flue gas state monitoring and control device based on the first adjustment instruction, the second adjustment instruction, and the third adjustment instruction to obtain the adjusted in-tower flue gas.

9. An electronic device, characterized in that: include: A memory, a processor, and a computer program stored in the memory and executable on the processor, wherein when the processor executes the program, the method according to any one of claims 1 to 7 is implemented.

10. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the program is executed by a processor, the method according to any one of claims 1 to 7 is implemented.

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