Atomization material spraying device

Abstract

The invention provides a material storage module of an atomizing and spraying device, which comprises a plurality of material storage tanks, each material storage tank is connected to a conveying pipeline through a discharge control valve, and stored materials in the material storage tanks are conveyed into the conveying pipeline through driving gas provided by a gas supply module and are atomized and output by a spray head at the tail end of the conveying pipeline; the current material storage amount of each material storage tank is monitored in real time through a material storage amount monitoring module, when the current material storage amount of the output material storage tank is lower than a preset material storage amount threshold value, the main controller can reselect other material storage tanks with sufficient storage amount as the output material storage tank, direct switching is conducted through the discharging control valve, shutdown for material supplementing is not needed, and after switching, the output material storage tank can be directly switched. And materials are supplemented to the material storage tanks with insufficient material storage amount, so that continuous work is realized. According to the atomization spraying device, the multiple storage tanks are arranged, continuous operation can be achieved, the production efficiency is improved, the shutdown maintenance requirement can be reduced, and the maintenance and cleaning cost can be reduced.

Description

Technical Field

[0001] This invention relates to the field of chemical technology, and in particular to an atomizing spraying device. Background Technology

[0002] Heavy oil (including atmospheric residue and vacuum residue) is the "bottom product" left after crude oil distillation. It has low practical value and is often catalytically cracked into high-value small-molecule light oil products (such as gasoline and diesel). To improve cracking efficiency, the feedstock oil needs to be atomized into tiny droplets.

[0003] In large-scale production, traditional conveying and atomizing equipment often requires shutdown for refueling due to its single-container design, interrupting continuous operation and limiting production efficiency. Furthermore, when the equipment is shut down, the residual media (especially viscous liquids and powders) in the pipelines are prone to solidification or clumping, clogging the pipelines and requiring manual cleaning before restarting after refueling, increasing maintenance costs. Summary of the Invention

[0004] Therefore, the purpose of this invention is to provide an atomizing spraying device to solve the problems of existing atomizing equipment lacking continuous operation capability, which restricts production efficiency and has high maintenance costs.

[0005] This invention provides an atomizing spraying device, comprising: The storage module includes multiple storage tanks, each of which is connected to a conveying pipeline via a discharge control valve; An air supply module is used to provide driving gas to drive the stored material in the storage tank to be transported in the conveying pipeline and atomized and output by a nozzle at the end of the conveying pipeline; A material storage monitoring module is used to monitor the current material storage level of each of the aforementioned storage tanks; The main controller is used to control the discharge control valve of each of the storage tanks according to the current storage amount of each of the storage tanks, so as to select the output storage tank from the multiple storage tanks according to the preset rules, and control the output storage tank to be connected to the conveying pipeline. The preset rules include: setting a storage tank with a current storage amount higher than a storage amount threshold as the output storage tank, and reselecting the output storage tank when the current storage amount of the output storage tank is lower than the preset storage amount threshold.

[0006] Optionally, a flushing pipeline is also included, disposed at the end of the delivery pipeline, for delivering a reverse flushing airflow into the delivery pipeline according to the air supply module.

[0007] Optionally, the gas supply module provides constant pressure drive gas output through a constant pressure valve.

[0008] Optionally, it also includes a residue detection module for detecting the amount of material residue in the conveying pipeline, and the main controller is also used to control the start and stop of backwashing according to the amount of material residue and a preset residue threshold.

[0009] Optionally, a cleaning control valve is provided in the flushing pipeline, and the main controller is also used to detect the status of each of the discharge control valves, and control the cleaning control valve to open when all the discharge control valves are closed.

[0010] Optionally, the storage module further includes a heating module, and the main controller is also used to control the working state of the heating module to maintain the temperature of each storage tank at a preset temperature.

[0011] Optionally, the discharge control valve includes a proportional valve, the air supply module includes a constant pressure valve, and the main controller is also used to control the constant pressure valve to adjust the pressure of the driving airflow, and to control the operating condition of the proportional valve to regulate the discharge flow rate.

[0012] Optionally, the inner wall of the delivery pipeline between the proportional valve and the nozzle is further provided with an anti-stick coating.

[0013] The atomizing spraying device provided by this invention includes a storage module comprising multiple storage tanks. Each storage tank is connected to a conveying pipeline via a discharge control valve. Driven gas from a gas supply module transports the stored material from the storage tanks to the conveying pipeline, where it is atomized and output from a nozzle at the end of the pipeline. The current storage level of each storage tank is monitored in real time by a storage level monitoring module. When the storage level of the current output storage tank falls below a preset storage level threshold, the main controller can select another storage tank with sufficient storage as the output storage tank. This can be directly switched via the discharge control valve without requiring machine downtime for refilling. After switching, the system refills the storage tank with insufficient storage, enabling continuous operation. By using multiple storage tanks, the atomizing spraying device of this invention can operate continuously, improving production efficiency and reducing downtime for maintenance, thus lowering maintenance and cleaning costs.

[0014] Furthermore, a flushing pipeline is installed at the end of the conveying pipeline. When the material stops being output, a reverse flushing airflow can be delivered to the conveying pipeline according to the air supply module, so as to automatically clean the residual material in the conveying pipeline in a timely manner, avoid the residual material from clumping and blocking the conveying pipeline, and reduce the cleaning cost of pipeline blockage. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the main structure of the atomizing spraying device in an embodiment of the present invention.

[0016] The following detailed description, in conjunction with the accompanying drawings, will further illustrate the present invention. Detailed Implementation

[0017] To facilitate understanding of the present invention, a more complete description will be given below with reference to the accompanying drawings. Several embodiments of the invention are illustrated in the drawings. However, the invention can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

[0018] It should be noted that when a component is said to be "fixed to" another component, it can be directly on the other component or there may be an intervening component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there may be an intervening component. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0019] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0020] To address the issues of insufficient continuous operation capability, which restricts production efficiency, and high maintenance costs in existing atomizing equipment, this invention provides an atomizing spraying device. This device comprises multiple storage tanks, each connected to a conveying pipeline via a discharge control valve. Driven gas from a gas supply module transports the stored material from the tanks to the conveying pipeline, where it is atomized and output from a nozzle at the end of the pipeline. The current material level in each tank is monitored in real-time by a material level monitoring module. When the current output storage tank's material level falls below a preset threshold, the main controller can select another storage tank with sufficient material as the output tank. This switching is achieved directly via the discharge control valve, eliminating the need for downtime refilling. After switching, material is replenished to the tank with insufficient material, enabling continuous operation, improving production efficiency, reducing downtime for maintenance, and lowering maintenance and cleaning costs.

[0021] Specifically, such as Figure 1 As shown, the atomizing spraying device in this embodiment is equipped with multiple storage tanks 11, which can store liquids, viscous liquids or powders, such as light oil, heavy oil, catalyst powder, etc. The storage tanks 11 have the same specifications, for example, stainless steel material can be selected. In production, the same material is usually stored. If it is necessary to adjust to execute other processes, the storage tanks can be cleaned and replaced.

[0022] The storage tank 11 is connected to the conveying pipeline through the discharge control valve and can be controlled independently so that one of the storage tanks 11 can be selected as the output storage tank for single material supply.

[0023] The gas supply module is used to provide driving gas, which drives the stored material output from the storage tank 11 to be transported in the conveying pipeline through gas flow, and is atomized and output by the nozzle 30 at the end of the conveying pipeline. To meet the spraying requirements of different raw materials, the nozzle 30 can be selected as a highly compatible atomizing nozzle.

[0024] Each storage tank 11 is individually equipped with a storage quantity monitoring module to monitor the current storage quantity. For example, it includes a radar sensor to detect the top height of the material inside the storage tank 11, so as to obtain the current storage quantity based on the top height of the material.

[0025] The main controller (not shown in the figure) can be a central processing unit, a programmable logic controller, etc., used to collect the output data of the storage quantity monitoring module, obtain the current storage quantity of each storage tank 11, and control the working condition of each discharge control valve, so as to select the output storage tank from multiple storage tanks 11 according to preset rules, and control the output storage tank to connect to the conveying pipeline.

[0026] The preset rules include: designating a storage tank with a current storage level higher than a preset storage level threshold as an output storage tank, and reselecting an output storage tank when the current storage level of the output storage tank falls below the preset storage level threshold. The storage level threshold can be, for example, 10%. To avoid frequent switching, when replenishing materials to storage tank 11, the storage level is generally greater than 80%. The specific threshold can be selected according to actual needs, and this application does not impose any particular limitation on it.

[0027] To facilitate stable control of the discharge, in this embodiment, the discharge control valve includes a proportional valve 12, the air supply module includes a constant pressure valve 22, the air source 21 can be nitrogen, the constant pressure valve 22 and the proportional valve 12 are connected to the main controller, and the pressure of the driving airflow is adjusted according to the control of the main controller, and the operating condition of the proportional valve 12 is controlled to regulate the discharge flow rate.

[0028] To avoid crosstalk during material discharge, in this embodiment, each storage tank 11 is equipped with a set of constant pressure valves 22 and proportional valves 12. Furthermore, to prevent interference between branch pipelines, in this embodiment, the output pipeline of the proportional valve 12 is connected to a selector valve 13. The selector valve 12 selects one branch, preventing material in the current output branch from entering other branches and accumulating and blocking the pipeline, thus ensuring unobstructed flow.

[0029] To prevent material from caking and clogging the conveying pipeline, a flushing pipeline is also provided in this embodiment. Located at the end of the conveying pipeline, the flushing pipeline supplies reverse flushing airflow to the conveying pipeline based on the air supply module. During equipment shutdown for maintenance, the cleaning control valve 41 in the reverse cleaning pipeline can be immediately opened to supply reverse flushing airflow to the conveying pipeline, carrying away any residual material and preventing residue buildup.

[0030] Specifically, the proportional valve 12 can be a three-input proportional valve, connected to the storage tank 11, the constant pressure valve 22, and the residue collection pipeline respectively. During cleaning, the connection with the storage tank 11 and the constant pressure valve 22 is closed, and the residue collection pipeline is opened. The residue material conveyed by the reverse airflow can be output through the residue collection pipeline. The residue collection pipeline can be connected to a material collection device such as a collection tank to avoid direct discharge and pollution. In particular, closing the connection with the constant pressure valve 22 can prevent the residue material from contaminating the constant pressure valve 22 during backflushing, thereby ensuring the reliability of the constant pressure valve 22.

[0031] During cleaning, valve 13 can be selected to open all channels simultaneously (if the hardware supports it), or to open each channel sequentially to clean each branch pipeline in turn.

[0032] When the machine is shut down, the residual problem mainly occurs in the pipeline between the proportional valve 12 and the nozzle 30. An anti-stick coating can be installed on the inner wall of the pipeline between the proportional valve 12 and the nozzle 30.

[0033] When it is necessary to empty the storage tank 11, the proportional valve 12 closes the connection with the constant pressure valve 22 and the residue collection pipeline, and the reverse flushing airflow can impact the storage tank 11 to clean the pipeline between the storage tank 11 and the proportional valve 12.

[0034] The constant pressure valve 22 can be adjusted from 0.1 MPa to 1.0 MPa, for example. The output pressure of the driving airflow can be adjusted according to the material type and flow requirements. The backwash airflow can be fixed at 0.8 MPa. The specific adjustment can be made according to the actual material conveying requirements. This application does not make any special limitations on this.

[0035] In this embodiment, each storage tank 11 is equipped with a constant pressure valve 22 to control the output pressure independently. This can be used for composite spraying, where multiple storage tanks 11 contain different materials. Different airflow pressures are selected according to the spraying requirements of the corresponding materials. When switching materials, the constant pressure valve 22 can be adjusted again, improving the switching speed. An independent constant pressure valve 22 is configured in the cleaning pipeline, which can improve the cleaning start-up speed, shorten the switching idle period, and improve the cleaning effect. In an optional embodiment, there is no need for driving air pressure regulation; the air source 21 can stably output air pressure through a single constant pressure valve 22, and the air pressure of each path is controlled by this single constant pressure valve.

[0036] Material spraying production usually has certain requirements for the reaction environment, such as the need for an oxygen-free environment. Accordingly, nitrogen can be selected as the gas source 21. However, there are no environmental requirements during cleaning. To reduce nitrogen costs, the cleaning pipeline can be connected to an air source separately, thereby reducing gas source costs.

[0037] To ensure cleaning effectiveness, this embodiment also includes a residue detection module for detecting the amount of material residue in the delivery pipeline. The main controller is also used to control the start and stop of backwashing based on the amount of material residue and a preset residue threshold.

[0038] In a specific example, the residue detection module combines capacitance and ultrasonic methods. The capacitance method can determine the amount of powder material residue in the pipeline by detecting the change in the dielectric constant of the pipeline, while the ultrasonic method can detect slurry and scale thickness, and can be used to detect liquids, viscous liquids and powder materials.

[0039] To ensure timely rinsing, the main controller is also used to detect the status of each discharge control valve (mainly the status of proportional valve 12), and automatically controls the cleaning control valve 41 to open when the connections between each proportional valve 12 and the constant pressure valve 22 and the storage tank 11 are all closed.

[0040] Depending on the characteristics of the materials, some materials need to be maintained at a certain temperature to ensure fluidity. Accordingly, in this embodiment, the storage module also includes a heating module (not shown in the figure). For example, heating elements are attached to the storage tank 11 and the conveying pipeline. The main controller is also used to control the working state of the heating module to maintain the temperature of each storage tank 11 at a preset temperature. For example, controlling the temperature of heavy oil at 40 degrees Celsius can effectively prevent it from solidifying, reduce its viscosity, and facilitate discharge.

[0041] The atomizing spraying device provided by this invention includes a storage module comprising multiple storage tanks. Each storage tank is connected to a conveying pipeline via a discharge control valve. Driven gas from a gas supply module transports the stored material from the storage tanks to the conveying pipeline, where it is atomized and output from a nozzle at the end of the pipeline. The current storage level of each storage tank is monitored in real time by a storage level monitoring module. When the storage level of the current output storage tank falls below a preset storage level threshold, the main controller can select another storage tank with sufficient storage as the output storage tank. This can be directly switched via the discharge control valve without requiring machine downtime for refilling. After switching, the system refills the storage tank with insufficient storage, enabling continuous operation. By using multiple storage tanks, the atomizing spraying device of this invention can operate continuously, improving production efficiency and reducing downtime for maintenance, thus lowering maintenance and cleaning costs.

[0042] A flushing pipeline is installed at the end of the conveying pipeline. When the material stops being output, a reverse flushing airflow can be delivered to the conveying pipeline according to the air supply module to clean up the residual material in the conveying pipeline in a timely and automatic manner, so as to avoid the residual material from clumping and blocking the conveying pipeline and reduce the cleaning cost of pipeline blockage.

[0043] In the description of this specification, references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0044] The embodiments described above are merely illustrative of several specific implementations of the present invention, and while the descriptions are detailed, they should not be construed as limiting the scope of protection of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements all fall within the scope of protection of the present invention. Therefore, the scope of protection of this patent should be determined by the appended claims.

Claims

1. An atomizing spraying device, characterized in that, include: The storage module includes multiple storage tanks, each of which is connected to a conveying pipeline via a discharge control valve; An air supply module is used to provide driving gas to drive the stored material in the storage tank to be transported in the conveying pipeline and atomized and output by a nozzle at the end of the conveying pipeline; A material storage monitoring module is used to monitor the current material storage level of each of the aforementioned storage tanks; The main controller is used to control the discharge control valve of each of the storage tanks according to the current storage amount of each of the storage tanks, so as to select the output storage tank from the multiple storage tanks according to the preset rules, and control the output storage tank to be connected to the conveying pipeline. The preset rules include: setting a storage tank with a current storage amount higher than a storage amount threshold as the output storage tank, and reselecting the output storage tank when the current storage amount of the output storage tank is lower than the preset storage amount threshold.

2. The atomizing spraying device according to claim 1, characterized in that, It also includes a flushing pipeline, located at the end of the delivery pipeline, for delivering a reverse flushing airflow into the delivery pipeline according to the air supply module.

3. The atomizing spraying device according to claim 1 or 2, characterized in that, The gas supply module provides constant pressure drive gas output through a constant pressure valve.

4. The atomizing spraying device according to claim 2, characterized in that, It also includes a residue detection module for detecting the amount of material residue in the conveying pipeline, and the main controller is also used to control the start and stop of backwashing based on the amount of material residue and a preset residue threshold.

5. The atomizing spraying device according to claim 2, characterized in that, The flushing pipeline is equipped with a cleaning control valve. The main controller is also used to detect the status of each of the discharge control valves and to control the cleaning control valve to open when all the discharge control valves are closed.

6. The atomizing spraying device according to claim 1, characterized in that, The storage module also includes a heating module, and the main controller is also used to control the working state of the heating module to maintain the temperature of each storage tank at a preset temperature.

7. The atomizing spraying device according to claim 1, characterized in that, The discharge control valve includes a proportional valve, the air supply module includes a constant pressure valve, and the main controller is also used to control the constant pressure valve to adjust the pressure of the driving airflow, and to control the operating condition of the proportional valve to regulate the discharge flow rate.

8. The atomizing spraying device according to claim 7, characterized in that, The inner wall of the delivery pipeline between the proportional valve and the nozzle is also provided with an anti-stick coating.

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