Wireless transmission wind powder on-line monitoring device

Abstract

The invention belongs to the technical field of wireless transmission of pulverized coal, and particularly relates to an online monitoring device for wireless transmission of pulverized coal, which aims to solve the technical problem that the concentration and flow velocity of pulverized coal cannot be adjusted in real time, and comprises a pipeline sensor, a pipeline sensor signal transmitting module, an in-situ sensor signal receiving module, a DCS (Distributed Control System) and an adjusting assembly, the pipeline sensor is in one-way communication connection with the pipeline sensor signal transmitting module, the sensor signal transmitting module is in one-way communication connection with the pipeline sensor signal receiving module, the pipeline sensor signal receiving module is in one-way communication connection with the DCS, the DCS is in one-way communication connection with the adjusting assembly, and the DCS controls and starts the execution motor. The execution motor drives the baffle to rotate, and the concentration and the flowing speed of the pulverized coal are adjusted in real time by controlling the opening degree of the baffle, so that the concentration and the flowing speed of the pulverized coal output through the communicating pipe meet actual use requirements.

Description

Technical Field

[0001] The invention belongs to the technical field of wireless transmission wind powder, and in particular relates to an online monitoring device for wireless transmission wind powder. Background Art

[0002] Domestic coal-fired power plants are generally facing the dual pressure of energy conservation and emission reduction. In the future, the optimization of the pulverizing system of power plant boilers is an inevitable trend of development. The pulverizing system is one of the most complex core equipment in coal-fired power plants, involving extremely complex physical and chemical changes. Due to the very complex working environment, there are many internationally recognized technical difficulties. The measurement, control and optimization schemes involved in the combustion process lack mature and reliable mathematical models and technical methods to support it. In addition, the vast majority of domestic power companies do not provide coal according to the design standards, and the sources are complex, mixed combustion is common, and the unit load fluctuates frequently. These objective factors further aggravate the difficulty of controlling the pulverizing system, and also lead to the inability of advanced control technologies and algorithm solutions to fully play a role in coal-fired units; general wireless transmission wind-powder online monitoring devices cannot achieve real-time adjustment of coal powder concentration and coal powder flow rate when monitoring coal powder data. Summary of the invention

[0003] The object of the present invention is to provide a wireless transmission wind-powder online monitoring device to solve the technical problem that the concentration and flow velocity of coal powder cannot be adjusted in real time.

[0004] To achieve the above purpose, the specific technical solution of a wireless transmission wind powder online monitoring device of the present invention is as follows:

[0005] A wireless transmission wind and powder online monitoring device comprises a pipeline sensor, a pipeline sensor signal transmitting module, an on-site sensor signal receiving module, a DCS system and an adjustment component, wherein the pipeline sensor is connected to the pipeline sensor signal transmitting module in a one-way communication manner, the sensor signal transmitting module is connected to the pipeline sensor signal receiving module in a one-way communication manner, the pipeline sensor signal receiving module is connected to the DCS system in a one-way communication manner, and the DCS system is connected to the adjustment component in a one-way communication manner.

[0006] Furthermore, the adjustment component includes a connecting pipe, a motor mounting bracket, an executive motor, a baffle, and a baffle opening. The executive motor is installed on the connecting pipe through the motor mounting bracket, and a baffle is rotatably installed in the connecting pipe. The output shaft of the executive motor is installed on the baffle, and the baffle is provided with a baffle opening, and a plurality of baffle openings are provided. The executive motor is connected to the DCS system. In this arrangement, the DCS system controls the start of the executive motor, and the executive motor drives the baffle to rotate. By controlling the opening of the baffle, the concentration of the coal powder and the flow rate of the coal powder are adjusted in real time, so that the concentration of the coal powder and the flow rate of the coal powder output through the connecting pipe meet the actual use requirements.

[0007] Furthermore, a plurality of the baffle openings are arranged in a circumferential array along the central axis of the baffle.

[0008] Further, the pipeline sensor signal transmitting module includes a backup battery unit, a solar power supply unit, a temperature battery unit, a system power distribution management unit, a LoRa remote modulation transmitting unit, a CPU computing and processing unit, an AD data acquisition unit, and a sensor signal front-end processing unit. The power of the backup battery unit, the solar power supply unit, and the temperature battery unit is respectively supplied to the LoRa remote modulation transmitting unit, the CPU computing and processing unit, the AD data acquisition unit, and the sensor signal front-end processing unit through the system power distribution management unit. The sensor signal front-end processing unit communicates unidirectionally with the AD data acquisition unit, the AD data acquisition unit communicates bidirectionally with the CPU computing and processing unit, and the CPU computing and processing unit communicates bidirectionally with the LoRa remote modulation transmitting unit. The sensor signal front-end processing unit is externally connected to a plurality of the pipeline sensors. In this configuration, the passive AC charge sensor collects data such as the concentration, flow velocity, and fineness of the coal powder in the connecting pipe, and converts the data into an analog signal. The AD data acquisition unit converts the analog signal into a digital signal, and transmits the digital signal to the CPU computing and processing unit for processing. The CPU computing and processing unit sends the processed data to the local sensor signal receiving module through the LoRa remote modulation transmitting unit.

[0009] Furthermore, the local sensor signal receiving module includes a LoRa remote mediation receiving unit, a receiving data processing unit, a sensor signal extraction and integration unit, a data signal sending unit, a DSP signal processing cross-correlation operation unit, an external data communication unit and a primary wind powder parameter display unit. The LoRa remote mediation receiving unit communicates with the receiving data processing unit, the receiving data processing unit communicates with the sensor signal extraction and integration unit, the sensor signal extraction and integration unit communicates with the data signal sending unit, the data signal sending unit communicates unidirectionally to the DSP signal processing cross-correlation operation unit, the DSP signal processing cross-correlation operation unit communicates unidirectionally to the external data communication unit, the external data communication unit communicates unidirectionally to the primary wind powder parameter display unit, and the external data communication unit communicates unidirectionally to the DCS system. The LoRa remote modulation transmitting unit communicates unidirectionally with the LoRa remote mediation receiving unit. With this arrangement, the LoRa remote modulation transmitting unit sends data to the oRa remote mediation receiving unit, and the signal is mediated by the oRa remote mediation receiving unit. The mediated signal is processed by the receiving data processing unit and extracted and integrated by the sensor signal extraction and integration unit, and then sent to the DSP signal processing cross-correlation operation unit through the data signal sending unit. The DSP signal processing cross-correlation operation unit sends the processed signal to the primary air powder parameter display unit and the DCS system through the external data communication unit. The primary air powder parameter display unit displays data such as the concentration of coal powder, the flow rate of coal powder and the fineness of coal powder, and adjusts the concentration and flow rate of coal powder through the DCS system.

[0010] Furthermore, the model of the DSP signal processing cross-correlation operation unit is TMS320F28335.

[0011] Furthermore, the pipeline sensor is a passive AC charge sensor for collecting data such as coal powder concentration, coal powder flow velocity and coal powder fineness.

[0012] Further, an online monitoring method of a wireless transmission wind powder online monitoring device, the monitoring steps are:

[0013] S1: The passive AC charge sensor collects data such as the concentration, flow rate and fineness of the coal powder in the connecting pipe, and converts the data into analog signals. The AD data acquisition unit converts the analog signals into digital signals and transmits the digital signals to the CPU computing unit for processing. The CPU computing unit sends the processed data to the local sensor signal receiving module through the LoRa remote modulation transmission unit.

[0014] S2: The LoRa remote modulation transmitting unit sends data to the oRa remote mediation receiving unit, which mediates the signal. The mediated signal is processed by the receiving data processing unit and extracted and integrated by the sensor signal extraction and integration unit, and then sent to the DSP signal processing cross-correlation operation unit through the data signal sending unit. The DSP signal processing cross-correlation operation unit sends the processed signal to the primary air powder parameter display unit and the DCS system through the external data communication unit. The primary air powder parameter display unit displays the data such as the concentration of coal powder, the flow rate of coal powder and the fineness of coal powder, and adjusts the concentration and flow rate of coal powder through the DCS system.

[0015] S3: The DCS system controls the start of the execution motor, which drives the baffle to rotate. By controlling the opening of the baffle, the concentration and flow rate of the coal powder are adjusted in real time, so that the concentration and flow rate of the coal powder output through the connecting pipe meet the actual use requirements.

[0016] The advantages of the present invention are:

[0017] 1. The passive AC charge sensor collects data such as the concentration, flow rate and fineness of coal powder in the connecting pipe, and converts the data into analog signals. The AD data acquisition unit converts the analog signals into digital signals and transmits the digital signals to the CPU computing unit for processing. The CPU computing unit sends the processed data to the local sensor signal receiving module through the LoRa remote modulation transmission unit;

[0018] 2. The LoRa remote modulation transmitting unit sends data to the oRa remote mediation receiving unit, which mediates the signal. The mediated signal is processed by the receiving data processing unit and extracted and integrated by the sensor signal extraction and integration unit, and then sent to the DSP signal processing cross-correlation operation unit through the data signal sending unit. The DSP signal processing cross-correlation operation unit sends the processed signal to the primary air powder parameter display unit and the DCS system through the external data communication unit. The primary air powder parameter display unit displays the data such as the concentration of coal powder, the flow rate of coal powder and the fineness of coal powder, and adjusts the concentration and flow rate of coal powder through the DCS system.

[0019] 3. The DCS system controls the start of the execution motor, which drives the baffle to rotate. By controlling the opening of the baffle, the concentration and flow rate of the coal powder can be adjusted in real time, so that the concentration and flow rate of the coal powder output through the connecting pipe meet the actual use requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1It is a schematic diagram of the structure of the adjustment component of the present invention;

[0021] Figure 2 for Figure 1 Schematic diagram of the cutting line position;

[0022] Figure 3 for Figure 2 Cross-sectional view along section AA;

[0023] Figure 4 This is a schematic diagram of the structure of the pipeline sensor signal transmitting module of the present invention;

[0024] Figure 5 It is a structural schematic diagram of the local sensor signal receiving module of the present invention;

[0025] Description of the markings in the figure:

[0026] Pipeline sensor 1; pipeline sensor signal transmitting module 2; local sensor signal receiving module 3; DCS system 4; adjustment component 5; connecting pipe 5-1; motor mounting bracket 5-2; execution motor 5-3; baffle 5-4; baffle opening 5-5. DETAILED DESCRIPTION

[0027] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0029] Example 1

[0030] like Figure 1-5As shown, a wireless transmission wind powder online monitoring device includes a pipeline sensor 1, a pipeline sensor signal transmitting module 2, an on-site sensor signal receiving module 3, a DCS system 4 and an adjustment component 5, wherein the pipeline sensor is unidirectionally connected to the pipeline sensor signal transmitting module, the sensor signal transmitting module is unidirectionally connected to the pipeline sensor signal receiving module, the pipeline sensor signal receiving module is unidirectionally connected to the DCS system, and the DCS system is unidirectionally connected to the adjustment component.

[0031] Example 2

[0032] like Figure 1-5 As shown, the adjustment component 5 includes a connecting pipe 5-1, a motor mounting bracket 5-2, an executing motor 5-3, a baffle 5-4, and a baffle opening 5-5. The executing motor 5-3 is installed on the connecting pipe 5-1 through the motor mounting bracket 5-2. The baffle 5-4 is rotatably installed in the connecting pipe 5-1. The output shaft of the executing motor 5-3 is installed on the baffle 5-4. The baffle 5-4 is provided with a baffle opening 5-5, and a plurality of baffle openings 5-5 are provided. The executing motor 5-3 is connected to the DCS system 4. In this arrangement, the DCS system 4 controls the starting of the executing motor 5-3, and the executing motor 5-3 drives the baffle 5-4 to rotate. By controlling the opening of the baffle 5-4, the concentration and flow rate of the coal powder are adjusted in real time, so that the concentration and flow rate of the coal powder output through the connecting pipe 5-1 meet the actual use requirements.

[0033] Among them, the multiple baffle openings 5-5 are arranged in a circumferential array along the central axis of the baffle 5-4.

[0034] Example 3

[0035] like Figure 4As shown, the pipeline sensor signal transmitting module 2 includes a backup battery unit, a solar power unit, a temperature battery unit, a system power distribution management unit, a LoRa remote modulation transmitting unit, a CPU computing unit, an AD data acquisition unit, and a sensor signal front-end processing unit. The power of the backup battery unit, the solar power unit, and the temperature battery unit is respectively supplied to the LoRa remote modulation transmitting unit, the CPU computing unit, the AD data acquisition unit, and the sensor signal front-end processing unit through the system power distribution management unit. The sensor signal front-end processing unit communicates unidirectionally with the AD data acquisition unit, the AD data acquisition unit communicates bidirectionally with the CPU computing unit, and the CPU computing unit communicates bidirectionally with the LoRa remote modulation transmitting unit. The sensor signal front-end processing unit is externally connected to a plurality of the pipeline sensors 1. In this configuration, the passive AC charge sensor collects data such as the concentration, flow velocity, and fineness of the coal powder in the connecting pipe 5-1, and converts the data into an analog signal. The AD data acquisition unit converts the analog signal into a digital signal, and transmits the digital signal to the CPU computing unit for processing. The CPU computing unit sends the processed data to the local sensor signal receiving module 3 through the LoRa remote modulation transmitting unit.

[0036] Example 4

[0037] like Figure 5As shown, the local sensor signal receiving module 3 includes a LoRa remote mediation receiving unit, a receiving data processing unit, a sensor signal extraction and integration unit, a data signal sending unit, a DSP signal processing cross-correlation operation unit, an external data communication unit and a primary wind powder parameter display unit. The LoRa remote mediation receiving unit communicates with the receiving data processing unit, the receiving data processing unit communicates with the sensor signal extraction and integration unit, the sensor signal extraction and integration unit communicates with the data signal sending unit, the data signal sending unit communicates unidirectionally with the DSP signal processing cross-correlation operation unit, the DSP signal processing cross-correlation operation unit communicates unidirectionally with the external data communication unit, the external data communication unit communicates unidirectionally with the primary wind powder parameter display unit, and the external data communication unit communicates unidirectionally with the DCS system 4. The LoRa remote modulation transmitting unit communicates unidirectionally with the LoRa remote mediation receiving unit. With this configuration, the LoRa remote modulation transmitting unit sends data to the oRa remote mediation receiving unit, and the signal is mediated by the oRa remote mediation receiving unit. The mediated signal is processed by the receiving data processing unit and extracted and integrated by the sensor signal extraction and integration unit, and then sent to the DSP signal processing cross-correlation operation unit through the data signal sending unit. The DSP signal processing cross-correlation operation unit sends the processed signal to the primary air powder parameter display unit and the DCS system 4 through the external data communication unit. The primary air powder parameter display unit displays data such as the concentration of coal powder, the flow rate of coal powder, and the fineness of coal powder, and adjusts the concentration and flow rate of coal powder through the DCS system 4.

[0038] Wherein, the model of the DSP signal processing cross-correlation operation unit is TMS320F28335.

[0039] Example 1

[0040] like Figure 1-5 As shown, the pipeline sensor 1 is a passive AC charge sensor, which is used to collect data such as coal powder concentration, coal powder flow rate and coal powder fineness.

[0041] Example 5

[0042] An online monitoring method for a wireless transmission wind powder online monitoring device, the monitoring steps are:

[0043] S1: The passive AC charge sensor collects data such as the concentration, flow rate and fineness of the coal powder in the connecting pipe 5-1, and converts the data into analog signals. The AD data acquisition unit converts the analog signals into digital signals, and transmits the digital signals to the CPU computing unit for processing. The CPU computing unit sends the processed data to the local sensor signal receiving module 3 through the LoRa remote modulation transmission unit;

[0044] S2: The LoRa remote modulation transmitting unit sends data to the oRa remote mediation receiving unit, and the oRa remote mediation receiving unit mediates the signal. The mediated signal is processed by the receiving data processing unit and extracted and integrated by the sensor signal extraction and integration unit, and then sent to the DSP signal processing cross-correlation operation unit through the data signal sending unit. The DSP signal processing cross-correlation operation unit sends the processed signal to the primary air powder parameter display unit and the DCS system 4 through the external data communication unit. The primary air powder parameter display unit displays data such as the concentration of coal powder, the flow rate of coal powder, and the fineness of coal powder, and adjusts the concentration and flow rate of coal powder through the DCS system 4.

[0045] S3: The DCS system 4 controls the start of the execution motor 5-3, which drives the baffle 5-4 to rotate. By controlling the opening of the baffle 5-4, the concentration and flow rate of the coal powder are adjusted in real time, so that the concentration and flow rate of the coal powder output through the connecting pipe 5-1 meet the actual use requirements.

[0046] It is to be understood that the present invention is described by some embodiments, and it is known to those skilled in the art that various changes or equivalent substitutions may be made to these features and embodiments without departing from the spirit and scope of the present invention. In addition, under the teachings of the present invention, these features and embodiments may be modified to adapt to specific circumstances and materials without departing from the spirit and scope of the present invention. Therefore, the present invention is not limited by the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the scope of protection of the present invention.

Claims

1. A wireless transmission wind powder online monitoring device, characterized in that: The invention comprises a pipeline sensor (1), a pipeline sensor signal transmitting module (2), an on-site sensor signal receiving module (3), a DCS system (4) and an adjustment component (5), wherein the pipeline sensor is connected to the pipeline sensor signal transmitting module in a one-way communication manner, the sensor signal transmitting module is connected to the pipeline sensor signal receiving module in a one-way communication manner, the pipeline sensor signal receiving module is connected to the DCS system in a one-way communication manner, and the DCS system is connected to the adjustment component in a one-way communication manner.

2. The wireless transmission wind powder online monitoring device according to claim 1 is characterized in that: The adjustment assembly (5) comprises a connecting pipe (5-1), a motor mounting bracket (5-2), an actuator motor (5-3), a baffle (5-4), and a baffle opening (5-5); the actuator motor (5-3) is mounted on the connecting pipe (5-1) via the motor mounting bracket (5-2); a baffle (5-4) is rotatably mounted in the connecting pipe (5-1); an output shaft of the actuator motor (5-3) is mounted on the baffle (5-4); a baffle opening (5-5) is opened on the baffle (5-4), and a plurality of baffle openings (5-5) are provided; and the actuator motor (5-3) is connected to a DCS system (4).

3. A wireless transmission wind powder online monitoring device according to claim 2, characterized in that: The plurality of baffle openings (5-5) are arranged in a circumferential array along the central axis of the baffle (5-4).

4. The wireless transmission wind powder online monitoring device according to claim 1 is characterized in that: The pipeline sensor signal transmitting module (2) comprises a backup battery unit, a solar power supply unit, a temperature battery unit, a system power distribution management unit, a LoRa remote modulation transmitting unit, a CPU computing processing unit, an AD data acquisition unit, and a sensor signal front-end processing unit. The power of the backup battery unit, the solar power supply unit, and the temperature battery unit is respectively supplied to the LoRa remote modulation transmitting unit, the CPU computing processing unit, the AD data acquisition unit, and the sensor signal front-end processing unit through the system power distribution management unit. The sensor signal front-end processing unit communicates unidirectionally with the AD data acquisition unit, the AD data acquisition unit communicates bidirectionally with the CPU computing processing unit, and the CPU computing processing unit communicates bidirectionally with the LoRa remote modulation transmitting unit. The sensor signal front-end processing unit is externally connected to a plurality of the pipeline sensors (1).

5. The wireless transmission wind powder online monitoring device according to claim 4 is characterized in that: The local sensor signal receiving module (3) comprises a LoRa remote mediation receiving unit, a receiving data processing unit, a sensor signal extraction and integration unit, a data signal sending unit, a DSP signal processing cross-correlation operation unit, an external data communication unit and a primary wind and powder parameter display unit. The LoRa remote mediation receiving unit communicates with the receiving data processing unit, the receiving data processing unit communicates with the sensor signal extraction and integration unit, the sensor signal extraction and integration unit communicates with the data signal sending unit, the data signal sending unit unidirectionally communicates with the DSP signal processing cross-correlation operation unit, the DSP signal processing cross-correlation operation unit unidirectionally communicates with the external data communication unit, the external data communication unit unidirectionally communicates with the primary wind and powder parameter display unit, the external data communication unit unidirectionally communicates with the DCS system (4), and the LoRa remote modulation transmitting unit unidirectionally communicates with the LoRa remote mediation receiving unit.

6. The wireless transmission wind powder online monitoring device according to claim 5 is characterized in that: The model of the DSP signal processing cross-correlation operation unit is TMS320F28335.

7. The wireless transmission wind powder online monitoring device according to claim 1 is characterized in that: The pipeline sensor (1) is a passive AC charge sensor used to collect data such as coal powder concentration, coal powder flow velocity and coal powder fineness.

8. The online monitoring method of the wireless transmission wind powder online monitoring device according to claims 1-7 is characterized in that: The monitoring steps are: S1: The passive AC charge sensor collects data such as the concentration, flow rate and fineness of the coal powder in the connecting pipe (5-1), and converts the data into analog signals. The AD data acquisition unit converts the analog signals into digital signals, and transmits the digital signals to the CPU computing unit for processing. The CPU computing unit sends the processed data to the local sensor signal receiving module (3) via the LoRa remote modulation transmission unit. S2: The LoRa remote modulation transmitting unit sends data to the oRa remote mediation receiving unit, and the oRa remote mediation receiving unit mediates the signal. The mediated signal is processed by the receiving data processing unit and extracted and integrated by the sensor signal extraction and integration unit, and then sent to the DSP signal processing cross-correlation operation unit through the data signal sending unit. The DSP signal processing cross-correlation operation unit sends the processed signal to the primary air powder parameter display unit and the DCS system (4) through the external data communication unit. The primary air powder parameter display unit displays data such as coal powder concentration, coal powder flow rate and coal powder fineness, and adjusts the coal powder concentration and coal powder flow rate through the DCS system (4); S3: The DCS system (4) controls the start-up of the execution motor (5-3), and the execution motor (5-3) drives the baffle (5-4) to rotate. By controlling the opening of the baffle (5-4), the concentration and flow rate of the coal powder are adjusted in real time, so that the concentration and flow rate of the coal powder output through the connecting pipe (5-1) meet the actual use requirements.

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