Flow adjustment method, device and system and storage medium

Abstract

The invention discloses a flow adjusting method, device and system and a storage medium. The method, device and system are used for adjusting the material proportion in the reaction process. The method comprises the following steps: acquiring the temperature of a reactor in a reaction process; when the temperature of the reactor falls into a preset temperature interval, determining a target ratio of the ammonia gas flow to the air flow; when the target proportion falls into a preset proportion interval, the air flow is adjusted according to the target proportion, so that the proportion of the ammonia gas flow and the air flow reaches the target proportion, and the temperature of the reactor is adjusted by adjusting the proportion of the ammonia gas flow and the air flow. By adopting the scheme, the temperature of the reactor can be adjusted by automatically adjusting the material proportion, so that the product quality is ensured.

Description

Technical Field

[0001] The present application relates to the field of automatic control technology, and in particular to a flow adjustment method, device, system and storage medium. Background Art

[0002] In modern industrial production processes, such as the process of ammonia oxidation to generate nitric oxide, temperature is an important factor affecting the reaction process. The existing material ratio control scheme is often a fixed ratio control with a fixed ratio of two materials. However, when the temperature in the system is disturbed, the fixed ratio cannot guarantee the product quality. At this time, it is necessary to adjust the ratio of ammonia flow and air flow according to the temperature change to compensate, so as to adjust the reactor temperature to a reasonable range and meet the process requirements. At present, it is manually adjusted by the staff based on their experience, which has a certain lag and the adjustment result depends on the experience of the staff.

[0003] Therefore, how to provide a flow adjustment method that can automatically adjust the material ratio to adjust the reactor temperature, thereby ensuring product quality, has become a technical problem that needs to be solved urgently. Summary of the invention

[0004] The present application provides a flow adjustment method, device, system and storage medium for automatically adjusting the material ratio to adjust the reactor temperature, thereby ensuring product quality.

[0005] The present application provides a flow adjustment method, comprising:

[0006] During the reaction, the reactor temperature is obtained;

[0007] When the reactor temperature falls within a preset temperature range, a target ratio of ammonia flow rate to air flow rate is determined;

[0008] When the target ratio falls within a preset ratio interval, the air flow is adjusted according to the target ratio so that the ratio of the ammonia flow rate to the air flow rate reaches the target ratio, so as to adjust the reactor temperature by adjusting the ratio of the ammonia flow rate to the air flow rate.

[0009] The beneficial effects of the present application are: during the reaction process, the reactor temperature is obtained in real time, and then when the reactor temperature falls into the preset temperature interval, the target ratio of ammonia flow rate and air flow rate is determined according to the reactor temperature. When the target ratio falls into the preset ratio interval, it means that the adjustment value at this time is in a reasonable range, and the air flow rate is adjusted according to the target ratio so that the ratio of ammonia flow rate and air flow rate reaches the target ratio, so as to adjust the reactor temperature by adjusting the ratio of ammonia flow rate and air flow rate. Since the ratio of ammonia flow rate and air flow rate is adjusted in real time according to the reactor temperature, the product quality is guaranteed, and the adjustment of the reactor temperature is achieved by adjusting the ratio of ammonia flow rate and air flow rate, which further guarantees the quality of the product.

[0010] In one embodiment, the method further comprises:

[0011] When the reactor temperature is greater than the maximum value of the preset temperature range, the reactor high temperature interlock is triggered to close the ammonia flow and air flow feed valves;

[0012] When the reactor temperature is lower than the minimum value of the preset temperature range, the existing ratio of ammonia flow rate to air flow rate is maintained.

[0013] In one embodiment, determining a target ratio of ammonia flow rate to air flow rate includes:

[0014] The reactor temperature is substituted into a preset calculation formula to obtain a target ratio of ammonia flow rate to air flow rate.

[0015] In one embodiment, the reactor temperature is substituted into a preset calculation formula to obtain a target ratio of ammonia flow rate to air flow rate, including:

[0016] Substitute the reactor temperature into the following first preset formula to obtain the target ratio of ammonia flow rate to air flow rate:

[0017]

[0018] Wherein, k is the target ratio, T is the reactor temperature, Cp is the specific heat capacity of ammonia, and ΔH is the heat release.

[0019] In one embodiment, the method further comprises:

[0020] When the target proportional coefficient exceeds the preset proportional interval, the existing ratio of the ammonia flow rate to the air flow rate is maintained.

[0021] In one embodiment, adjusting the air flow rate according to the target ratio includes:

[0022] Substitute the target ratio into the following second preset formula to calculate the target air mass flow rate:

[0023] Target air mass flow rate = k*ammonia mass flow rate*molecular weight of ammonia / molecular weight of air;

[0024] The air flow rate is adjusted according to the target air mass flow rate.

[0025] In one embodiment, adjusting the air flow rate according to the target air mass flow rate includes:

[0026] Get the current air mass flow rate;

[0027] Compare the deviation value between the current air mass flow rate and the target air mass flow rate;

[0028] When the deviation between the current air mass flow rate and the target air mass flow rate is greater than a preset difference, determining the target opening of the air valve according to the deviation between the current air mass flow rate and the target air mass flow rate;

[0029] The air valve opening is adjusted according to the target opening of the air valve to achieve the regulation of air flow.

[0030] The present application also provides a flow adjustment device, comprising:

[0031] An acquisition module is used to obtain the reactor temperature during the reaction process;

[0032] A determination module, used for determining a target ratio of ammonia flow rate to air flow rate when the reactor temperature falls within a preset temperature range;

[0033] The adjustment module is used to adjust the air flow according to the target ratio when the target ratio falls into a preset ratio interval, so that the ratio of ammonia flow and air flow reaches the target ratio, so as to adjust the reactor temperature by adjusting the ratio of ammonia flow and air flow.

[0034] In one embodiment, the apparatus further comprises:

[0035] A closing module is used to trigger the reactor high-temperature interlock and close the ammonia flow and air flow feed valves when the reactor temperature is greater than the maximum value of the preset temperature range;

[0036] The first maintaining module is used to maintain the existing ratio of ammonia flow rate to air flow rate when the reactor temperature is lower than the minimum value of the preset temperature range.

[0037] In one embodiment, the determining module includes:

[0038] The first substitution submodule is used to substitute the reactor temperature into a preset calculation formula to obtain a target ratio of ammonia flow rate to air flow rate.

[0039] In one embodiment, the first substitution submodule is further used to:

[0040] Substitute the reactor temperature into the following first preset formula to obtain the target ratio of ammonia flow rate to air flow rate:

[0041]

[0042] Wherein, k is the target ratio, T is the reactor temperature, Cp is the specific heat capacity of ammonia, and ΔH is the heat release.

[0043] In one embodiment, the device further comprises:

[0044] The second maintaining module is used to maintain the existing ratio of the ammonia flow rate to the air flow rate when the target proportional coefficient exceeds a preset proportional interval.

[0045] In one embodiment, the adjustment module includes:

[0046] The second substitution submodule is used to substitute the target ratio into the following second preset formula to calculate the target air mass flow rate:

[0047] Target air mass flow rate = k*ammonia mass flow rate*molecular weight of ammonia / molecular weight of air;

[0048] The adjustment submodule is used to adjust the air flow according to the target air mass flow.

[0049] In one embodiment, the adjustment submodule is further used to:

[0050] Get the current air mass flow rate;

[0051] Compare the deviation value between the current air mass flow rate and the target air mass flow rate;

[0052] When the deviation between the current air mass flow rate and the target air mass flow rate is greater than a preset difference, determining the target opening of the air valve according to the deviation between the current air mass flow rate and the target air mass flow rate;

[0053] The air valve opening is adjusted according to the target opening of the air valve to achieve the regulation of air flow.

[0054] The present application also provides a flow adjustment system, comprising:

[0055] at least one processor; and,

[0056] a memory communicatively connected to the at least one processor; wherein,

[0057] The memory stores instructions that can be executed by the at least one processor, and the instructions are executed by the at least one processor to implement the flow adjustment method recorded in any of the above embodiments.

[0058] The present application also provides a computer-readable storage medium. When the instructions in the storage medium are executed by a processor corresponding to the flow adjustment system, the flow adjustment system can implement the flow adjustment method recorded in any of the above embodiments.

[0059] Other features and advantages of the present application will be described in the following description, and partly become apparent from the description, or be understood by practicing the present application. The purpose and other advantages of the present application can be realized and obtained by the structures specifically pointed out in the written description, claims, and drawings.

[0060] The technical solution of the present application is further described in detail below through the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0061] The accompanying drawings are used to provide a further understanding of the present application and constitute a part of the specification. Together with the embodiments of the present application, they are used to explain the present application and do not constitute a limitation of the present application. In the accompanying drawings:

[0062] Figure 1 This is a flow chart of a flow adjustment method in one embodiment of the present application;

[0063] Figure 2 This is a schematic diagram of a system for generating nitric oxide by oxidation of ammonia in one embodiment of the present application;

[0064] Figure 3 This is a structural schematic diagram of a flow adjustment device in one embodiment of the present application;

[0065] Figure 4 This is a schematic diagram of the hardware structure of a flow adjustment system in one embodiment of the present application. DETAILED DESCRIPTION

[0066] The preferred embodiments of the present application are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present application and are not used to limit the present application.

[0067] Figure 1 Flow chart of a flow adjustment method in one embodiment of the present application. Figure 1 As shown, the method can be implemented as the following steps S101-S103:

[0068] In step S101, during the reaction process, the reactor temperature is obtained;

[0069] In step S102, when the reactor temperature falls within a preset temperature range, a target ratio of ammonia flow rate to air flow rate is determined;

[0070] In step S103, when the target ratio falls within a preset ratio interval, the air flow rate is adjusted according to the target ratio so that the ratio of the ammonia flow rate to the air flow rate reaches the target ratio, so as to adjust the reactor temperature by adjusting the ratio of the ammonia flow rate to the air flow rate.

[0071] In the prior art, dual closed-loop ratio control is used to achieve constant value control of the main flow (ammonia flow); when the load is increased or decreased, the given value of the main flow controller is slowly changed, and the secondary flow (air flow) automatically follows the increase or decrease, and the ratio of the two is kept unchanged. This application monitors the reactor temperature and adjusts the material ratio in the reactor in time to achieve reactor temperature adjustment and ensure product quality. Figure 2 Schematic diagram of a system for generating nitric oxide by oxidation of ammonia in one embodiment of the present application. Figure 2 As shown, the specific adjustment process is as follows: FIC-01 controls the ammonia output, FIC-02 controls the air output, and the temperature detection device TC-01 is set at the reactor. The temperature detection device will send the reactor temperature to the Y-01 calculation block.

[0072] During the reaction process, the reactor temperature is obtained; by means of a temperature detection device arranged at the reactor, the reactor temperature can be detected in real time.

[0073] The temperature detection device will send the reactor temperature to the Y-01 calculation block. The Y-01 calculation block determines whether the ratio of ammonia flow rate and air flow rate needs to be adjusted according to the reactor temperature. If the ratio of ammonia flow rate and air flow rate needs to be adjusted, the target ratio of ammonia flow rate and air flow rate is obtained. Specifically, a preset temperature range is pre-set based on past experience. When the reactor temperature is greater than the maximum value of the preset temperature range, the reactor high temperature interlock is triggered to close the ammonia flow rate and air flow feed valve; when the reactor temperature is less than the minimum value of the preset temperature range, the existing ratio of ammonia flow rate and air flow rate is maintained without adjustment; when the reactor temperature falls within the preset temperature range, the target ratio of ammonia flow rate and air flow rate is determined. There are many methods for determining the target ratio of ammonia flow rate and air flow rate based on the reactor temperature, such as pre-setting a corresponding relationship table of temperature range and target ratio, and determining the target ratio of ammonia flow rate and air flow rate by querying which temperature range the current reactor temperature falls into. In one embodiment of the present application, the target ratio of ammonia flow rate and air flow rate is obtained by substituting the reactor temperature into the following first preset formula:

[0074]

[0075] Wherein, k is the target ratio, T is the reactor temperature, Cp is the specific heat capacity of ammonia, and ΔH is the heat release.

[0076] Since there is a reasonable range for the mixing ratio of ammonia flow and air flow, a preset ratio interval can be determined by experience. Therefore, after obtaining the target ratio, the target ratio is compared with the preset ratio interval. When the target ratio coefficient exceeds the preset ratio interval, the existing ratio of ammonia flow and air flow is maintained; when the target ratio falls into the preset ratio interval, the air flow is adjusted according to the target ratio so that the ratio of ammonia flow and air flow reaches the target ratio, so as to adjust the reactor temperature by adjusting the ratio of ammonia flow and air flow. That is, control parameters are generated according to the ammonia flow and the target ratio, and then the Y-01 calculation block sends the specific control parameters to FIC-02, so that FIC-02 controls the air flow. In one embodiment of the present application, the target ratio is substituted into the following second preset formula to calculate the target air mass flow:

[0077] Target air mass flow rate = k*ammonia mass flow rate*molecular weight of ammonia / molecular weight of air;

[0078] Then, the air flow is adjusted according to the target air mass flow. In the specific adjustment process, the current air mass flow is obtained; the deviation value between the current air mass flow and the target air mass flow is compared; when the deviation value between the current air mass flow and the target air mass flow is greater than a preset difference, the target opening of the air valve is determined according to the deviation value between the current air mass flow and the target air mass flow; the air valve opening is adjusted according to the target opening of the air valve to achieve air flow regulation.

[0079] By adopting the scheme provided by the present application, when other disturbances other than flow disturbances occur in the system causing temperature changes, the main controller output changes through the main feedback loop, and the ratio setting value of the two flows is changed to keep the main parameters stable. The main flow (ammonia flow) disturbance entering the system, due to the rapid follow-up tracking of the ratio control loop, causes the secondary flow (air flow) to change accordingly to keep the temperature stable, playing the role of static feedforward.

[0080] The beneficial effects of the present application are: during the reaction process, the reactor temperature is obtained in real time, and then when the reactor temperature falls into the preset temperature interval, the target ratio of ammonia flow rate and air flow rate is determined according to the reactor temperature. When the target ratio falls into the preset ratio interval, it means that the adjustment value at this time is in a reasonable range, and the air flow rate is adjusted according to the target ratio so that the ratio of ammonia flow rate and air flow rate reaches the target ratio, so as to adjust the reactor temperature by adjusting the ratio of ammonia flow rate and air flow rate. Since the ratio of ammonia flow rate and air flow rate is adjusted in real time according to the reactor temperature, the product quality is guaranteed, and the adjustment of the reactor temperature is achieved by adjusting the ratio of ammonia flow rate and air flow rate, which further guarantees the quality of the product, and realizes automatic adjustment of the material ratio according to the temperature to ensure the product quality.

[0081] In one embodiment, the method can also be implemented as the following steps A1-A2:

[0082] In step A1, when the reactor temperature is greater than the maximum value of the preset temperature range, the reactor high temperature interlock is triggered, and the ammonia flow and air flow feed valves are closed;

[0083] In step A2, when the reactor temperature is lower than the minimum value of the preset temperature range, the existing ratio of ammonia flow rate to air flow rate is maintained.

[0084] In one embodiment, the above step S102 may also be implemented as the following step B1:

[0085] In step B1, the reactor temperature is substituted into a preset calculation formula to obtain a target ratio of ammonia flow rate to air flow rate.

[0086] In one embodiment, the above step B1 can also be implemented as the following steps:

[0087] Substitute the reactor temperature into the following first preset formula to obtain the target ratio of ammonia flow rate to air flow rate:

[0088]

[0089] Wherein, k is the target ratio, T is the reactor temperature, Cp is the specific heat capacity of ammonia, and ΔH is the heat release.

[0090] In one embodiment, the method can also be implemented as the following step C1:

[0091] In step C1, when the target proportional coefficient exceeds the preset proportional interval, the existing ratio of the ammonia flow rate to the air flow rate is maintained.

[0092] In one embodiment, the above step S103 can also be implemented as the following steps D1-D2:

[0093] In step D1, the target ratio is substituted into the following second preset formula to calculate the target air mass flow rate:

[0094] Target air mass flow rate = k*ammonia mass flow rate*molecular weight of ammonia / molecular weight of air;

[0095] In step D2, the air flow rate is adjusted according to the target air mass flow rate.

[0096] In one embodiment, the above step D2 can also be implemented as the following steps D21-D22:

[0097] In step D21, the current air mass flow rate is obtained;

[0098] In step D22, the deviation value between the current air mass flow rate and the target air mass flow rate is compared;

[0099] In step D23, when the deviation between the current air mass flow rate and the target air mass flow rate is greater than a preset difference, the target opening of the air valve is determined according to the deviation between the current air mass flow rate and the target air mass flow rate;

[0100] In step D24, the air valve opening is adjusted according to the target opening of the air valve to adjust the air flow.

[0101] In one embodiment, the method further comprises:

[0102] After the air valve opening is adjusted to the target valve opening, the current air mass flow changes, and the deviation value between the current air mass flow and the target air mass flow continues to be obtained; when the deviation value between the current air mass flow and the target air mass flow is greater than the preset difference, the target opening of the air valve continues to be determined based on the deviation value between the current air mass flow and the target air mass flow, and the air valve opening is adjusted based on the target opening of the air valve until the deviation value between the current air mass flow and the target air mass flow is less than the preset difference.

[0103] In one embodiment, determining the target opening of the air valve according to the deviation between the current air mass flow rate and the target air mass flow rate includes:

[0104] Substitute the deviation between the current air mass flow rate and the target air mass flow rate into the following third preset formula to calculate the target opening of the air valve:

[0105]

[0106] Where MV(t) is the target opening of the air valve, Kc is the ratio, T i is the integral, Td is the differential, E(t) is the deviation between the current air mass flow rate and the target air mass flow rate, and t is the time.

[0107] Figure 3 Schematic diagram of the structure of a flow adjustment device in one embodiment of the present application. Figure 3 As shown, the device comprises:

[0108] An acquisition module 301 is used to acquire the temperature of the reactor during the reaction process;

[0109] A determination module 302 is used to determine a target ratio of ammonia flow rate to air flow rate when the reactor temperature falls within a preset temperature range;

[0110] The adjustment module 303 is used to adjust the air flow according to the target ratio when the target ratio falls into a preset ratio interval, so that the ratio of the ammonia flow rate to the air flow rate reaches the target ratio, so as to adjust the reactor temperature by adjusting the ratio of the ammonia flow rate to the air flow rate.

[0111] In one embodiment, the apparatus further comprises:

[0112] A closing module is used to trigger the reactor high-temperature interlock and close the ammonia flow and air flow feed valves when the reactor temperature is greater than the maximum value of the preset temperature range;

[0113] The first maintaining module is used to maintain the existing ratio of ammonia flow rate to air flow rate when the reactor temperature is lower than the minimum value of the preset temperature range.

[0114] In one embodiment, the determining module includes:

[0115] The first substitution submodule is used to substitute the reactor temperature into a preset calculation formula to obtain a target ratio of ammonia flow rate to air flow rate.

[0116] In one embodiment, the first substitution submodule is further used to:

[0117] Substitute the reactor temperature into the following first preset formula to obtain the target ratio of ammonia flow rate to air flow rate:

[0118]

[0119] Wherein, k is the target ratio, T is the reactor temperature, Cp is the specific heat capacity of ammonia, and ΔH is the heat release.

[0120] In one embodiment, the device further comprises:

[0121] The second maintaining module is used to maintain the existing ratio of the ammonia flow rate to the air flow rate when the target proportional coefficient exceeds a preset proportional interval.

[0122] In one embodiment, the adjustment module includes:

[0123] The second substitution submodule is used to substitute the target ratio into the following second preset formula to calculate the target air mass flow rate:

[0124] Target air mass flow rate = k*ammonia mass flow rate*molecular weight of ammonia / molecular weight of air;

[0125] The adjustment submodule is used to adjust the air flow according to the target air mass flow.

[0126] In one embodiment, the adjustment submodule is further used to:

[0127] Get the current air mass flow rate;

[0128] Compare the deviation value between the current air mass flow rate and the target air mass flow rate;

[0129] When the deviation between the current air mass flow rate and the target air mass flow rate is greater than a preset difference, determining the target opening of the air valve according to the deviation between the current air mass flow rate and the target air mass flow rate;

[0130] The air valve opening is adjusted according to the target opening of the air valve to achieve the regulation of air flow.

[0131] Figure 4 FIG. 1 is a schematic diagram of the hardware structure of a flow adjustment system in one embodiment of the present application. Figure 4 As shown, the flow adjustment system comprises:

[0132] at least one processor 420; and,

[0133] A memory 404 in communication with the at least one processor 420; wherein,

[0134] The memory 404 stores instructions that can be executed by the at least one processor 420, and the instructions are executed by the at least one processor 420 to implement the traffic adjustment method described in any of the above embodiments.

[0135] Reference Figure 4 The traffic adjustment system 400 may include one or more of the following components: a processing component 402, a memory 404, a power component 406, a multimedia component 408, an audio component 410, an input / output (I / O) interface 412, a sensor component 414, and a communication component 416.

[0136] The processing component 402 generally controls the overall operation of the traffic shaping system 400. The processing component 402 may include one or more processors 420 to execute instructions to perform all or part of the steps of the above method. In addition, the processing component 402 may include one or more modules to facilitate the interaction between the processing component 402 and other components. For example, the processing component 402 may include a multimedia module to facilitate the interaction between the multimedia component 408 and the processing component 402.

[0137] The memory 404 is configured to store various types of data to support the operation of the flow shaping system 400. Examples of such data include instructions for any application or method operating on the flow shaping system 400, such as text, pictures, videos, etc. The memory 404 can be implemented by any type of volatile or non-volatile storage device or a combination thereof, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic disk or optical disk.

[0138] The power supply assembly 406 provides power to the various components of the flow shaping system 400. The power supply assembly 406 may include a power management system, one or more power supplies, and other components associated with generating, managing, and distributing power to the flow shaping system 400.

[0139] The multimedia component 408 includes a screen that provides an output interface between the flow adjustment system 400 and the user. In some embodiments, the screen may include a liquid crystal display (LCD) and a touch panel (TP). If the screen includes a touch panel, the screen may be implemented as a touch screen to receive input signals from the user. The touch panel includes one or more touch sensors to sense touch, slide, and gestures on the touch panel. The touch sensor can not only sense the boundaries of the touch or slide action, but also detect the duration and pressure associated with the touch or slide operation. In some embodiments, the multimedia component 408 may also include a front camera and / or a rear camera. When the flow adjustment system 400 is in an operating mode, such as a shooting mode or a video mode, the front camera and / or the rear camera can receive external multimedia data. Each front camera and rear camera can be a fixed optical lens system or have focal length and optical zoom capabilities.

[0140] The audio component 410 is configured to output and / or input audio signals. For example, the audio component 410 includes a microphone (MIC), and when the flow adjustment system 400 is in an operation mode, such as an alarm mode, a recording mode, a voice recognition mode, and a voice output mode, the microphone is configured to receive an external audio signal. The received audio signal can be further stored in the memory 404 or sent via the communication component 416. In some embodiments, the audio component 410 also includes a speaker for outputting audio signals.

[0141] I / O interface 412 provides an interface between processing component 402 and peripheral interface modules, such as keyboards, click wheels, buttons, etc. These buttons may include but are not limited to: a home button, a volume button, a start button, and a lock button.

[0142] The sensor assembly 414 includes one or more sensors for providing various aspects of the status assessment of the flow adjustment system 400. For example, the sensor assembly 414 may include an acoustic sensor. In addition, the sensor assembly 414 may detect the open / closed state of the flow adjustment system 400, the relative positioning of components, such as the display and keypad of the flow adjustment system 400, the operating state of the flow adjustment system 400 or a component of the flow adjustment system 400, the orientation or acceleration / deceleration of the flow adjustment system 400, and the temperature change of the flow adjustment system 400. The sensor assembly 414 may include a proximity sensor configured to detect the presence of a nearby object without any physical contact. The sensor assembly 414 may also include an optical sensor, such as a CMOS or CCD image sensor, for use in imaging applications. In some embodiments, the sensor assembly 414 may also include a magnetic sensor, a pressure sensor, a material stack thickness sensor, or a temperature sensor.

[0143] The communication component 416 is configured to enable the traffic adjustment system 400 to provide the ability to communicate with other devices and cloud platforms in a wired or wireless manner. The traffic adjustment system 400 can access a wireless network based on a communication standard, such as WiFi, 2G or 3G, or a combination thereof. In an exemplary embodiment, the communication component 416 receives a broadcast signal or broadcast-related information from an external broadcast management system via a broadcast channel. In an exemplary embodiment, the communication component 416 also includes a near field communication (NFC) module to facilitate short-range communication. For example, the NFC module can be implemented based on radio frequency identification (RFID) technology, infrared data association (IrDA) technology, ultra-wideband (UWB) technology, Bluetooth (BT) technology and other technologies.

[0144] In an exemplary embodiment, the flow adjustment system 400 can be implemented by one or more application-specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field programmable gate arrays (FPGAs), controllers, microcontrollers, microprocessors or other electronic components to execute the flow adjustment method described in any of the above embodiments.

[0145] The present application also provides a computer-readable storage medium. When the instructions in the storage medium are executed by a processor corresponding to the flow adjustment system, the flow adjustment system can implement the flow adjustment method recorded in any of the above embodiments.

[0146] Those skilled in the art will appreciate that the embodiments of the present application may be provided as methods, systems, or computer program products. Therefore, the present application may adopt the form of a complete hardware embodiment, a complete software embodiment, or an embodiment in combination with software and hardware. Moreover, the present application may adopt the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage and optical storage, etc.) that contain computer-usable program code.

[0147] The present application is described with reference to the flowcharts and / or block diagrams of the methods, devices (systems), and computer program products according to the embodiments of the present application. It should be understood that each process and / or box in the flowchart and / or block diagram, as well as the combination of the processes and / or boxes in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing device to generate a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the processes in the flowchart and / or block diagram. Figure 1 A process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0148] These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing device to operate in a specific manner, so that the instructions stored in the computer-readable memory produce an article of manufacture comprising an instruction device, which implements the process Figure 1 A process or multiple processes and / or boxes Figure 1 A function specified in one or more boxes.

[0149] These computer program instructions can also be loaded onto a computer or other programmable data processing device so that a series of operating steps are executed on the computer or other programmable device to produce a computer-implemented process, thereby providing instructions for implementing the process. Figure 1 A process or multiple processes and / or boxes Figure 1 The steps for the functions specified in one or more boxes.

[0150] Obviously, those skilled in the art can make various changes and modifications to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is also intended to include these modifications and variations.

Claims

1. A flow adjustment method, characterized in that: include: During the reaction, the reactor temperature is obtained; When the reactor temperature falls within a preset temperature range, a target ratio of ammonia flow rate to air flow rate is determined; When the target ratio falls within a preset ratio interval, the air flow is adjusted according to the target ratio so that the ratio of the ammonia flow rate to the air flow rate reaches the target ratio, so as to adjust the reactor temperature by adjusting the ratio of the ammonia flow rate to the air flow rate.

2. The method according to claim 1, characterized in that The method further comprises: When the reactor temperature is greater than the maximum value of the preset temperature range, the reactor high temperature interlock is triggered to close the ammonia flow and air flow feed valves; When the reactor temperature is lower than the minimum value of the preset temperature range, the existing ratio of ammonia flow rate to air flow rate is maintained.

3. The method according to claim 1, characterized in that Determining the target ratio of ammonia flow rate to air flow rate includes: The reactor temperature is substituted into a preset calculation formula to obtain a target ratio of ammonia flow rate to air flow rate.

4. The method according to claim 3, characterized in that Substituting the reactor temperature into a preset calculation formula to obtain a target ratio of ammonia flow rate to air flow rate includes: Substitute the reactor temperature into the following first preset formula to obtain the target ratio of ammonia flow rate to air flow rate: Wherein, k is the target ratio, T is the reactor temperature, Cp is the specific heat capacity of ammonia, and ΔH is the heat release.

5. The method according to claim 1, characterized in that The method further comprises: When the target proportional coefficient exceeds the preset proportional interval, the existing ratio of the ammonia flow rate to the air flow rate is maintained.

6. The method according to claim 1, characterized in that The adjusting the air flow rate according to the target ratio comprises: Substitute the target ratio into the following second preset formula to calculate the target air mass flow rate: Target air mass flow rate = k*ammonia mass flow rate*molecular weight of ammonia / molecular weight of air; The air flow rate is adjusted according to the target air mass flow rate.

7. The method according to claim 6, characterized in that The adjusting the air flow rate according to the target air mass flow rate comprises: Get the current air mass flow rate; Compare the deviation value between the current air mass flow rate and the target air mass flow rate; When the deviation between the current air mass flow rate and the target air mass flow rate is greater than a preset difference, determining the target opening of the air valve according to the deviation between the current air mass flow rate and the target air mass flow rate; The air valve opening is adjusted according to the target opening of the air valve to achieve the regulation of air flow.

8. A flow adjustment device, characterized in that: include: An acquisition module is used to obtain the reactor temperature during the reaction process; A determination module, used for determining a target ratio of ammonia flow rate to air flow rate when the reactor temperature falls within a preset temperature range; The adjustment module is used to adjust the air flow according to the target ratio when the target ratio falls into a preset ratio interval, so that the ratio of ammonia flow and air flow reaches the target ratio, so as to adjust the reactor temperature by adjusting the ratio of ammonia flow and air flow.

9. A flow adjustment system, characterized in that: include: at least one processor; as well as, a memory communicatively connected to the at least one processor; wherein, The memory stores instructions that can be executed by the at least one processor, and the instructions are executed by the at least one processor to implement the traffic adjustment method according to any one of claims 1 to 7.

10. A computer-readable storage medium, characterized in that: When the instructions in the storage medium are executed by a processor corresponding to the flow adjustment system, the flow adjustment system can implement the flow adjustment method as described in any one of claims 1 to 7.

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