Acid loading system

Abstract

The utility model discloses an acid loading system which is used for automatically filling a tank car with acid liquor, the tank car is provided with an acid loading port, the acid loading system comprises a parking space, scanners, an acid loading platform, a control center and an acid mist collecting device, the parking space is used for parking the tank car, and the scanners are arranged on at least one side of the parking space; the scanner is used for scanning the acid filling port and generating position information of the acid filling port; the acid loading platform is arranged above the parking space, the acid loading platform comprises an automatic loading arm which is movably arranged, the control center is remotely connected with the scanner and the automatic loading arm, and the control center is used for receiving the position information and controlling the automatic loading arm to move according to the position information and to be in butt joint with the acid loading opening; the acid mist collecting device comprises a fan, a negative pressure pipeline and a demister, the fan is configured to form negative pressure near the parking space during operation so as to guide the acid mist to the negative pressure pipeline, the negative pressure pipeline is used for conveying the acid mist to the demister, and the demister is used for treating the acid mist.

Description

Technical Field

[0001] The present application relates to the technical field of hazardous chemical filling, and more specifically, to an acid filling system. Background Art

[0002] Oleum is a hazardous chemical that is usually transported by tank trucks during the transshipment process. Loading the acid into the tank trucks is mostly done manually, with operators responsible for opening and closing the acid loading port, loading crane, and valves, and waiting on site for the acid loading to be completed. The entire loading process is characterized by low efficiency and automation levels, high labor quotas, and a harsh working environment, posing significant safety risks to workers. Utility Model Content

[0003] The embodiments of the present application provide an acid filling system for automatically filling a tank truck with acid liquid, and are intended to reduce safety risks during the acid filling process.

[0004] An embodiment of the present application provides an acid filling system for automatically filling acid liquid into a tank truck, the tank truck having an acid filling port, the acid filling system comprising a parking space, a scanner, an acid filling platform, a control center and an acid mist collection device, wherein the parking space is used to park the tank truck, the scanner is arranged on at least one side of the parking space, the scanner is used to scan the acid filling port and generate position information of the acid filling port; the acid filling platform is arranged above the parking space, and the acid filling platform includes a movably arranged automatic crane; the control center is remotely connected to the scanner and the automatic crane, respectively, the control center is used to receive position information, and to control the automatic crane to move according to the position information and dock with the acid filling port; the acid mist collection device comprises a fan, a negative pressure pipe and a demister, the fan is configured to form a negative pressure near the parking space during operation to drain the acid mist to the negative pressure pipe, the negative pressure pipe is used to transport the acid mist to the demister, and the demister is used to treat the acid mist.

[0005] In the acid filling system of the embodiment of the present application, a scanner is used to scan the acid filling port and generate position information of the acid filling port. The automatic crane moves autonomously according to the position information of the acid filling port so as to accurately dock with the acid filling port. The acid mist is also collected by the acid mist collection device. During the entire acid filling process, the contact between personnel and acid liquid is minimized or avoided, thereby maximizing the safety of personnel and improving the reliability and safety of the acid filling system. At the same time, the automated scanning and moving process also improves the acid filling efficiency.

[0006] In some embodiments, the scanner is disposed above the parking space, and the automatic crane has freedom of movement in three directions that are perpendicular to each other.

[0007] In some embodiments, the acid loading system includes an identification device, which is connected to the control center signal, and is used to identify the vehicle information and acid loading amount of the tank truck and transmit the vehicle information and acid loading amount to the control center.

[0008] In some embodiments, the acid loading system includes a delivery pipeline connected to the automatic crane pipe, the delivery pipeline is provided with a flow meter and a shut-off valve, the flow meter has a signal connection with the control center, the flow meter is interlocked with the shut-off valve, the flow meter is used to measure the acid flow of the automatic crane pipe, and the shut-off valve is used to stop delivering acid to the automatic crane pipe when the acid flow of the automatic crane pipe reaches the acid loading amount.

[0009] In some embodiments, the acid loading system includes a prompt device, which has a signal connection with the control center. The prompt device is used to receive and display vehicle information, acid loading amount and acid loading process information. The acid loading process information includes an acid loading start signal, real-time acid liquid flow rate and an acid loading end signal.

[0010] In some embodiments, the prompt device includes a display screen assembly and a broadcasting device, the display screen assembly includes at least one display screen, the display screen assembly is used to display vehicle information and acid loading process information, and the broadcasting device is used to broadcast the acid loading process information.

[0011] In some embodiments, the acid loading system includes a monitoring device, which is remotely connected to a control center and is used to observe the safety conditions around the parking space.

[0012] In some embodiments, the acid mist collection device further comprises an acid mist hood, which is arranged at the acid discharge port of the automatic lifting pipe, and the end of the negative pressure pipe extends into the acid mist hood.

[0013] In some embodiments, the acid loading system includes a delivery pipeline and a first acid pump, a storage tank, a low-level tank and a high-level tank that are liquid-connected in sequence through the delivery pipeline. The low-level tank is located lower than the storage tank and the high-level tank, and the storage tank is liquid-level-interlocked with the low-level tank, and the low-level tank is liquid-level-interlocked with the high-level tank. The delivery pipeline connects the high-level tank and the automatic crane pipe.

[0014] In some embodiments, a first regulating valve, a second regulating valve, and a third regulating valve are provided on the delivery pipeline, wherein the first regulating valve is provided between the first acid pump and the storage tank, the second regulating valve is provided between the storage tank and the low-level tank, and the third regulating valve is provided between the low-level tank and the high-level tank;

[0015] The storage tank is provided with a first liquid level gauge, the first regulating valve is interlocked with the first liquid level gauge, the low level tank is provided with a second liquid level gauge, the second regulating valve is interlocked with the second liquid level gauge, the high level tank is provided with a third liquid level gauge, the third regulating valve is interlocked with the third liquid level gauge.

[0016] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become obvious from the description below, or will be learned through practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The above and / or additional aspects and advantages of the present application will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0018] Figure 1 It is a structural schematic diagram of an acid loading system according to an embodiment of the present application;

[0019] Figure 2 Schematic diagram of the working of the acid filling system according to the embodiment of the present application;

[0020] Figure 3 This is a process principle diagram of the acid loading system according to an embodiment of the present application;

[0021] Figure 4 It is a structural schematic diagram of an acid loading system according to another embodiment of the present application;

[0022] Figure 5 It is a schematic diagram of the organizational module of the acid filling system according to the embodiment of the present application.

[0023] Description of main component symbols:

[0024] 100 - Acid loading system; 110 - Control center; 120 - Identification device; 130 - Prompt device; 140 - Monitoring device; 150 - Emergency stop device; 10 - Parking space; 101 - Acid loading area; 20 - Scanner; 30 - Acid loading platform; 31 - Automatic lifting pipe; 311 - Acid discharge port; 312 - Liquid receiving hopper; 313 - Anti-overflow interlock; 40 - Delivery pipeline; 51 - Flow meter; 52 - Stop valve; 60 - Acid mist collection device; 61 - Fan; 62 - Negative pressure pipeline; 63 - Demister; 71 - First acid pump; 72 - Storage tank; 721 - First liquid level gauge; 73 - Low-level tank; 731 - Second acid pump; 732 - Second liquid level gauge; 74 - High-level tank; 743 - Third liquid level gauge; 751 - First regulating valve; 752 - Second regulating valve; 753 - Third regulating valve; 754 - Automatic on / off valve;

[0025] 200-Tank truck; 210-Acid loading port. DETAILED DESCRIPTION

[0026] The embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application, and should not be understood as limiting the present application.

[0027] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply 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 application. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the said features. In the description of the present application, "multiple" means two or more, unless otherwise clearly and specifically defined.

[0028] In the description of this application, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections, electrical connections, or mutual communication; they can refer to direct connections or indirect connections through an intermediate medium; they can refer to internal communication between two components or the interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on specific circumstances.

[0029] In this application, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature includes the first feature being directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0030] The disclosure below provides many different embodiments or examples for realizing different structures of the present application. In order to simplify the disclosure of the present application, the components and settings of specific examples are described below. Of course, they are merely examples and are not intended to limit the present application. In addition, the present application may repeat reference numbers and / or reference letters in different examples, and such repetition is for the purpose of simplicity and clarity, and does not itself indicate the relationship between the various embodiments and / or settings discussed. In addition, the present application provides examples of various specific processes and materials, but those of ordinary skill in the art will appreciate the application of other processes and / or the use of other materials.

[0031] The acid loading system 100 of the embodiment of the present application is applied to the process of loading sulfuric acid, and the acid liquid can be 98% concentrated sulfuric acid, fuming sulfuric acid and other liquid sulfuric acid products.

[0032] See also Figure 1 、 Figure 2 and Figure 5 The embodiment of the present application provides an acid filling system 100 for automatically filling acid liquid into a tank truck 200. The tank truck 200 has an acid filling port 210. The acid filling system 100 includes a parking space 10, a scanner 20, an acid filling platform 30, a control center 110, and an acid mist collection device 60. The parking space 10 is used to park the tank truck 200. The scanner 20 is arranged on at least one side of the parking space 10. The scanner 20 is used to scan the acid filling port 210 and generate position information of the acid filling port 210. The acid filling platform 30 is arranged above the parking space 10. It includes a movable automatic crane 31; a control center 110 is remotely connected to the scanner 20 and the automatic crane 31 respectively, and the control center 110 is used to receive position information and control the automatic crane 31 to move according to the position information and dock with the acid loading port 210; the acid mist collection device 60 includes a fan 61, a negative pressure pipe 62 and a demister 63, and the fan 61 is configured to form a negative pressure near the parking space 10 during operation to drain the acid mist to the negative pressure pipe 62, and the negative pressure pipe 62 is used to transport the acid mist to the demister 63, and the demister 63 is used to treat the acid mist.

[0033] In the prior art, workers had to climb onto the roof of the tank truck after it was parked to open the acid loading port. They then manually lowered the crane to the height of the port, notified the plant to open the acid loading valve, and began loading the acid. The workers then had to wait on the roof until the acid was discharged, hoisted the crane, attached the liquid collection bucket, and then closed the acid loading port and left. The acid loading process was characterized by low automation and work efficiency, and the loading of concentrated sulfuric acid and fuming sulfuric acid posed significant safety risks to workers.

[0034] In the acid filling system 100 according to the embodiment of the present application, the scanner 20 scans the acid filling port 210 and generates position information of the acid filling port 210. The automatic lifting pipe 31 moves autonomously based on the position information of the acid filling port 210 to accurately dock with the acid filling port 210. The acid mist collection device 60 also creates negative pressure and collects acid mist, thereby reducing the workload of on-site staff, effectively improving the acid filling operation environment, and enhancing the reliability and safety of the acid filling system 100. In addition, the automated scanning and movement process also improves the automation level and work efficiency of the acid filling process.

[0035] Specifically, the control center 110 can be set in an area that is far away from the parking space 10 and has isolation facilities. The control center 110 can be provided with a power cabinet, a control box, software, a central display screen, a server, an operating table, etc. The control center 110 is remotely connected to the scanner 20, which can be connected through a wiring harness or a transmission relationship established through a wireless signal. The control center 110 can be directly connected to the automatic crane 31, or it can be connected to the drive device through the control center 110 to control the movement of the automatic crane 31. The control center 110 receives the position information formed after the scanner 20 scans the acid loading port 210, and can convert the position information into a reasonable moving path to avoid the automatic crane 31 from colliding with other facilities in the acid loading area 101 during movement, and accurately docking with the acid loading port 210.

[0036] Optionally, the control center 110 can receive the reservation signal from the terminal device, arrange the acid loading process, and send an acid loading report to the terminal device after the acid loading is completed. For example, the driver sends the acid loading time, third-party acid usage information, acid loading quantity, etc. to the control center through his personal mobile phone. After the acid loading is completed, the control center 110 generates a visual report and sends it to the driver's personal mobile phone. The report content includes but is not limited to vehicle information, acid loading quantity, acid loading time, parking space information, etc.

[0037] The scanner 20 can be a device that can send a scanning signal to the object to be located and collect reflected signals to generate three-dimensional position information of the object to be located. The scanning signal can be a laser, infrared, or other type of electromagnetic wave. Accordingly, the scanner 20 can be a laser scanner 20, an infrared scanner 20, etc. The position information of the acid filling port 210 generated by the scanner 20 has at least the positioning in the up-down, left-right, and front-back directions. For example, the position information of the acid filling port 210 is the three-dimensional coordinates of the acid filling port 210.

[0038] By collecting reflected light signals from the acid filling port 210 and its surroundings, the scanner 20 acquires spatial structural information about the acid filling area 101 in the form of point cloud data. The control center 110 constructs a three-dimensional model of the tank truck 200 using the point cloud data acquired by the scanner 20, thereby identifying the shape and surface of the tank truck 200 and accurately determining the location coordinates, shape, size, and opening / closing status of the acid filling port 210.

[0039] The acid loading system 100 of the embodiment of the present application accurately generates the position information of the acid loading port 210 through the scanner 20, so that the automatic crane 30 can accurately dock with the acid loading port 210. Compared with simple laser ranging, the information obtained is more complex and accurate. In the acid loading scenario of oleum, the acid mist formed by oleum often covers the acid loading port 210. The related technology uses visual recognition to obtain positioning methods that are very easy to fail in an acid mist environment. The wave light signal emitted by the scanner 20 can penetrate the acid mist and can accurately obtain the position information of the acid loading port 210, which is particularly suitable for the acid loading process of oleum.

[0040] The parking space 10 typically has square boundaries and is located on a flat surface. Ground markings or signs may be provided on the parking space 10 to guide the driver to park the tank truck 200 in a predetermined orientation, facilitate movement and docking of the automatic crane 31 toward the acid loading port 210, and facilitate identification of the vehicle by the identification device 120.

[0041] The acid loading platform 30 is assumed to be above the parking space 10, and an acid loading area 101 is formed between the acid loading platform 30 and the parking space 10. The acid loading platform 30 is provided with a drive device, which is connected to the automatic lifting pipe 31 and is used to drive the automatic lifting pipe 31 to move relative to the acid loading platform 30. This application does not limit the driving method of the drive device, and the drive device can be electronically driven, hydraulically driven, air pump driven, etc. Exemplarily, the drive device is electronically driven and can provide driving force in three directions: up and down, left and right, and front and back.

[0042] Optionally, the automatic lifting pipe 31 has the freedom of movement in three directions: up and down, left and right, and front and back. It can be lowered from the acid loading platform 30 and extended into the acid loading area 101, and the horizontal position can be adjusted to dock with the acid loading port 210. The end of the automatic lifting pipe 31 is the acid discharge port 311. The automatic lifting pipe 31 moves to the top of the acid loading port 210 along the up and down, front and back, left and right directions according to the position information of the acid loading port 210, so that the acid discharge port 311 is directly opposite the acid loading port 210. The acid discharge port 311 can be inserted into the acid loading port 210 to reduce sulfuric acid splashing, overflow and acid mist dissipation. The automatic lifting pipe 31 is connected to the scanner 20 signal. The automatic lifting pipe 31 can receive the position information generated by the scanner 20 to ensure smooth docking with the acid loading port 210 and reduce collisions.

[0043] After the acid loading is completed, the automatic lifting pipe 31 is moved out of the acid loading port 210 and moved back to the preset position on the acid loading platform 30, that is, the automatic lifting pipe 31 is automatically reset. The acid loading system 100 of the embodiment of the present application also makes the moving path of the automatic lifting pipe 31 reset more flexible, which is conducive to reducing the risk of collision between the automatic lifting pipe 31 and other facilities.

[0044] Optionally, a liquid receiving hopper 312 is provided on the automatic loading pipe 31. The liquid receiving hopper 312 is located on one side of the acid discharge port 311 and is movable relative to the automatic loading pipe 31. After the automatic loading pipe 31 stops pouring acid, the acid discharge port 311 is moved away from the acid loading port 210, and the liquid receiving hopper 312 moves relative to the automatic loading pipe 31 to below the acid discharge port 311 to receive some of the acid droplets leaking from the acid discharge port 311.

[0045] Optionally, an anti-overflow probe 313 is provided on the automatic crane pipe 31. The anti-overflow probe 313 is located at the acid discharge port 311 and is interlocked with the stop valve 52 and the flow meter 51. When the acid liquid level loaded in the tank truck 200 reaches the set value of the anti-overflow probe 313, the anti-overflow control interlock is triggered, the stop valve 52 and the flow meter 51 are closed, and the acid is stopped from being loaded into the tank truck 200, thereby avoiding acid overflow from the tank truck.

[0046] See also Figure 1 In some embodiments, the scanner 20 is disposed above the parking space 10, and the automatic crane 31 has the freedom of movement in three directions that are perpendicular to each other.

[0047] Thus, the scanner 20 is positioned above the parking space 10, which facilitates accurate scanning of the acid loading port 210 located on the roof of the tank truck 200 and facilitates the tank truck 200 to enter and exit the parking space 10. The automatic lifting pipe 31 has three degrees of freedom of movement in two perpendicular directions, which improves work efficiency and docking accuracy and helps reduce collisions between the automatic lifting pipe 31 and the acid loading port 210.

[0048] Specifically, the scanner 20 is fixedly installed above the parking space 10. The automatic lifting pipe 31 of the embodiment of the present application has the freedom of movement in three directions: up and down, left and right, and front and back, and is connected to the scanner 20 signal. During the acid loading process, the staff or the driver of the tank truck 200 opens the acid loading port 210 and leaves the acid loading area 101, and starts the acid loading system 100. The scanner 20 automatically scans the acid loading port 210 and generates position information. After receiving the position information of the acid loading port 210, the automatic lifting pipe 31 can accurately connect to the acid loading port 210. After the acid loading is completed, the automatic lifting pipe 31 can automatically reset, thereby improving work efficiency, reducing on-site personnel, and improving the safety of production operations.

[0049] See also Figure 5In some embodiments, the acid loading system 100 includes an identification device 120, which is signal-connected to the control center 110. The identification device 120 is used to identify the vehicle information and acid loading amount of the tank truck 200 and transmit the vehicle information and acid loading amount to the control center 110.

[0050] In this way, the identification device 120 identifies the vehicle information and the acid loading amount of the tank truck 200, so that the acid loading system 100 can automatically control the automatic lifting pipe 31 to inject the amount of acid required by the corresponding vehicle.

[0051] Specifically, the identification device 120 can identify the vehicle information and acid loading quantity of the tank truck 200 through one or more of visual recognition, radio frequency signal recognition, and QR code recognition. The vehicle information of the tank truck 200 includes, but is not limited to, the license plate number, driver's name, destination, tonnage, and capacity. The capacity of the tank truck 200 is greater than or equal to the actual acid loading quantity required for each loading operation.

[0052] Optionally, the identification device 120 includes a camera and a card reader. The camera is used to capture and identify the license plate and exterior of the tank truck 200, identifying and recording the license plate number. The card reader is used to read the driver's IC card and record the acid loading quantity. The camera is positioned to one side of the parking space 10, facing the front of the vehicle or the parking space 10. The card reader can be positioned a certain distance from the parking space 10 so that the driver can complete the card reading and recording while en route from the acid loading area 101.

[0053] Optionally, the control center is connected to the access control system of the factory area, and the access control system can be used as a part of the identification device to identify the vehicle information, driver information, and sulfuric acid user information of the tank truck 200.

[0054] Optionally, the identification device 120 is connected to the control center 110, and the control center 110 can control the acid flow in the automatic crane 31 according to the acid loading amount entered by the card reader. Furthermore, the control center 110 can be connected to the prompt device 130 and publicize the vehicle information through the prompt device 130.

[0055] See also Figure 1-Figure 3 In some embodiments, the acid loading system 100 includes a delivery pipeline 40 connected to the automatic loading pipe 31. The delivery pipeline 40 is provided with a flow meter 51 and a stop valve 52. The flow meter 51 has a signal connection with the control center. The flow meter 51 is interlocked with the stop valve 52. The flow meter 51 is used to measure the acid flow of the automatic loading pipe 31. The stop valve 52 is used to stop delivering acid to the automatic loading pipe 31 when the acid flow of the automatic loading pipe 31 reaches the acid loading amount.

[0056] In this way, by arranging the flow meter 51 and the stop valve 52 on the delivery pipeline 40, automatic quantitative acid filling is achieved.

[0057] Specifically, the flowmeter 51 can be a DN150 flowmeter 51 lined with a PTFE (polytetrafluoroethylene) sleeve. The shut-off valve 52 can be an electric valve, a pneumatic valve, a hydraulic valve, or the like. The shut-off valve 52 receives the acid loading amount as determined by the identification device 120. When the flowmeter 51 indicates that the acid flow rate flowing into the automatic loading pipe 31 is less than the acid loading amount, the shut-off valve 52 opens. When the flowmeter 51 indicates that the acid flow rate flowing into the automatic loading pipe 31 reaches the acid loading amount, the shut-off valve 52 closes, and the automatic loading pipe 31 stops loading acid.

[0058] The flow meter 51 is connected to the control center 110 via a signal connection. The flow meter 51 records the acid flow rate during each acid filling process. The control center 110 receives the recorded data from the flow meter 51 and generates a statistical report. Furthermore, the statistical report can be displayed via the prompt device 130, for example, by displaying the acid flow rate during each acid filling process on a display screen. In this embodiment, the stop valve 52 can be an electric stop valve 52.

[0059] See also Figure 5 In some embodiments, the acid loading system 100 includes a prompt device 130, which has a signal connection with the control center. The prompt device 130 is used to receive and display vehicle information, acid loading amount and acid loading process information. The acid loading process information includes an acid loading start signal, real-time acid liquid flow rate and an acid loading end signal.

[0060] In this way, the prompt device 130 receives and displays vehicle information, acid loading quantity and acid loading process information, so that the acid loading system 100 can notify the staff in real time of the status of the corresponding tank truck 200 at each stage of the acid loading process, so that the staff can know the on-site situation in time when they are far away from the acid loading area 101, thereby improving the intelligence level of the acid loading system 100 and also improving work efficiency and safety.

[0061] Specifically, the prompt device 130 can obtain the acid loading amount entered by the card reader and the vehicle information read by the camera through the control center, and then release it publicly. The prompt device 130 is connected to the flow meter 51, receives the acid flow of the automatic crane 31 recorded by the flow meter 51, and displays the start and end of the acid loading process through the acid loading start signal, real-time acid flow and acid loading end signal, and reminds relevant staff and drivers. This application does not limit the connection method between the prompt device 130 and the identification device 120, and the prompt device 130 and the flow meter 51. For example, the prompt device 130 and the identification device 120 can realize the sending and receiving of information through wireless signal transmission or wired transmission.

[0062] See also Figure 5In some embodiments, the prompt device 130 includes a display screen assembly (not shown) and a broadcasting device (not shown). The display screen assembly (not shown) includes at least one display screen. The display screen assembly (not shown) is used to display vehicle information and acid loading process information. The broadcasting device (not shown) is used to broadcast the acid loading process information.

[0063] In this way, the vehicle information and acid loading process information are displayed through the display screen component (not shown in the figure), and the acid loading process information is broadcast by the broadcasting device (not shown in the figure). The acid loading process is announced in a timely manner by combining visual and auditory media, which makes it convenient for staff at various positions to simultaneously understand the on-site situation, thereby improving the intelligence level of the acid loading system 100.

[0064] Specifically, the display screen assembly (not shown) includes several display screens, which can be set on the acid loading platform 30 or in an office or control room where staff members are on duty.

[0065] Optionally, the control center 110 establishes a connection with a mobile terminal, and the mobile terminal can be used as a display screen to display vehicle information and acid loading process information. For example, a driver's personal mobile phone, a staff member's personal computer, etc. can be used as a display screen to display vehicle information and acid loading process information of the corresponding vehicle.

[0066] The announcement device (not shown) can broadcast information about the acid loading process through one or more of voice, tone, and text messages. For example, the announcement device (not shown) includes a speaker mounted on the acid loading platform 30. Before the tank truck 200 enters the parking space 10, the speaker can announce the vehicle number of the corresponding vehicle, guiding the driver to drive the tank truck 200 into the vacant parking space 10. In the event of an accident during the acid loading process, the speaker can play a sharp ringtone. For another example, after the acid loading is completed, the announcement device (not shown) can send a text message to the driver's personal mobile phone to indicate the completion of the acid loading, guiding the driver to drive the tank truck 200 away.

[0067] Optionally, in some embodiments, the acid loading system 100 has multiple parking spaces 10 and multiple automatic crane pipes 31, and the multiple parking spaces 10 and the multiple automatic crane pipes 31 correspond one to one. The identification device 120 is set in each parking space 10, and the vehicle information of the tank truck 200 corresponding to each parking space 10 is identified by the identification device 120, and the vehicle information corresponding to each parking space 10 is transmitted to the prompt device 130. The prompt device 130 can display the working status of multiple parking spaces 10 through playing animations, reports, etc. on the display screen.

[0068] In some embodiments, the acid filling system 100 includes a monitoring device 130 , which is remotely connected to the control center 110 . The monitoring device 130 is used to observe the safety situation around the parking space 10 .

[0069] In this way, the monitoring device 130 is used to observe whether there are people entering the parking space 10 during the acid loading process, thereby facilitating response to emergency situations and saving manpower for on-site monitoring of the acid loading process.

[0070] Specifically, the monitoring device 130 may include a video monitor (not shown) provided on the acid loading platform 30 , and the video monitor may face the direction of the acid loading port 210 preset on the parking space 10 .

[0071] Optionally, the acid filling system 100 further includes an emergency stop device 150. This device can be located in the acid filling area 101 or in a remote work area operated by personnel. The emergency stop device 150 can be linked to the monitoring device 130 and the delivery pipeline 40. If the monitoring device 130 detects an emergency, the emergency stop device 150 can shut off the flow in the delivery pipeline 40 to terminate the acid filling process. The emergency stop device 150 can have a red button, which is eye-catching and convenient for emergency operation.

[0072] The monitoring device is remotely connected to the control center. When the monitoring device detects an unexpected accident in the acid loading area 101, the control center can also report the accident information through the prompt device.

[0073] See also Figure 2 and Figure 3 In some embodiments, the acid loading system 100 includes an acid mist collection device 60, which includes a fan 61, a negative pressure pipe 62 and a demister 63. The fan 61 is configured to form a negative pressure near the parking space 10 when in operation to drain the acid mist into the negative pressure pipe 62. The negative pressure pipe 62 is used to transport the acid mist to the demister 63, and the demister 63 is used to treat the acid mist.

[0074] It should be noted that oleum is prone to emitting SO3 and has the characteristic of forming acid mist when it comes into contact with water. Therefore, when oleum is loaded onto a truck, acid mist is easily generated in the acid loading area 101, and the working environment is extremely harsh.

[0075] In some embodiments of the present application, the acid mist collecting device 60 forms a negative pressure and collects the acid mist, thereby reducing the acid mist emitted from the acid loading area 101 when loading fuming sulfuric acid, effectively improving the acid loading operation environment, and also contributing to environmental protection.

[0076] Specifically, fuming acid flows from the header tank 74 through the delivery pipeline 40 into the automatic lifting pipe 31 and is injected into the acid loading port 210. A fan 61 can be positioned below the acid loading platform 30 and facing the acid loading port 210. The input end of the negative pressure pipe 62 can be opposite to the fan 61. When the fan 61 is activated, a negative pressure is generated on one side of the acid loading port 210 of the tank truck 200, forcing the acid mist to flow into the negative pressure pipe 62. The negative pressure pipe 62 is connected to the demister 63, which reliquefies the acid mist and renders it harmless.

[0077] Optionally, the fan 61 may be disposed in the acid loading area 101 or outside the acid loading area 101 , and may be arranged at different locations in conjunction with the acid loading platform 30 , multiple parking spaces 10 and other on-site facilities.

[0078] In some embodiments, the storage tank 72 , the low-level tank 73 and the high-level tank 74 are also provided with a negative pressure pipe 62 , and the escaped acid mist is collected to the demister 63 through the negative pressure pipe 62 .

[0079] In some embodiments, the acid mist collecting device 60 further includes an acid mist hood (not shown), which is disposed at the acid discharge port 311 of the automatic lifting pipe 31, and the end of the negative pressure pipe 62 extends into the acid mist hood.

[0080] Particularly, acid mist cover and negative pressure duct 62 collect acid mist by blower fan 61 jointly.Acid mist cover can be approximately funnel-shaped, so that collect acid mist, and the narrower end of acid mist cover forms opening and identical with the direction of releasing acid port 311, so that releasing acid port 311 is docked with acid mouth 210 by the opening of acid mist cover.Acid mist cover can move synchronously with automatic crane pipe 31.The end of negative pressure duct 62 stretches into acid mist cover and can become one with acid mist cover, and the end that negative pressure duct 62 connects acid mist cover can be arranged to extend upwards along automatic crane pipe 31.Acid mist cover can also block acid mist, is that the end of releasing acid port 311 and negative pressure pipeline 63 of automatic crane pipe 31 plays protective effect.

[0081] See also Figure 3 and Figure 4 In some embodiments, the acid filling system 100 includes a delivery pipeline 40 and a first acid pump 71, a storage tank 72, a low-level tank 73 and a high-level tank 74 connected in sequence by a liquid circuit through the delivery pipeline 40. The position of the low-level tank 73 is lower than the storage tank 72 and the high-level tank 74, and the storage tank 72 is liquid-level-interlocked with the low-level tank 73, and the low-level tank 73 is liquid-level-interlocked with the high-level tank 74. The delivery pipeline 40 connects the high-level tank 74 and the automatic lifting pipe 31.

[0082] In this way, the position of the low-level tank 73 is lower than the storage tank 72 and the high-level tank 74, and the liquid levels of the storage tank 72 and the low-level tank 73 are interlocked, and the liquid levels of the low-level tank 73 and the high-level tank 74 are interlocked, and the delivery pipeline 40 connects the high-level tank 74 and the automatic lifting pipe 31, thereby utilizing the height difference to achieve self-flow of acid liquid.

[0083] Specifically, a first acid pump 71 is located in the acid production and preparation area. The prepared fuming acid or concentrated sulfuric acid is transported to a storage tank 72 via the first acid pump 71 and a delivery pipeline 40. The storage tank 72, the low-level tank 73, and the high-level tank 74 can all store a certain volume of acid for a short period of time. The low-level tank 73 is equipped with a second acid pump 731 to pump the acid from the low-level tank 73 to the higher-level high-level tank 74. The liquid level in the high-level tank 74 is higher than the acid loading platform 30, and the location where the high-level tank 74 connects to the delivery pipeline 40 to output the acid is higher than the acid discharge port 311 of the automatic loading pipe 31. Due to the height difference between the high-level tank 74 and the acid discharge port 311 of the automatic loading pipe 31, and the connection between the high-level tank 74 and the automatic loading pipe 31 via the delivery pipeline 40, the acid can flow from the high-level tank 74 to the automatic loading pipe 31 by gravity, and then be loaded into the tank truck 200 through the acid loading port 210 of the tank truck 200.

[0084] The acid solution is transported to the storage tank 72 through the first acid solution pump 71 and the delivery pipeline 40, and flows into the low-level tank 73. The acid solution in the low-level tank 73 is transported to the high-level tank 74 through the second acid solution pump 731 and the delivery pipeline 40, and flows into the automatic lifting pipe 31 based on the height difference.

[0085] Optionally, the storage tank 72 and the high-level tank 74 may be elevated relative to the ground, and the low-level tank 73 may be positioned lower than the storage tank 72 and the high-level tank 74 . The low-level tank 73 may be disposed below the ground.

[0086] See also Figure 3 In some embodiments, a first regulating valve 751, a second regulating valve 752 and a third regulating valve 753 are provided on the delivery pipeline 40, the first regulating valve 751 is provided between the first acid pump 71 and the storage tank 72, the second regulating valve 752 is provided between the storage tank 72 and the low-level tank 73, and the third regulating valve 753 is provided between the low-level tank 73 and the high-level tank 74; the storage tank 72 is provided with a first liquid level gauge 721, the first regulating valve 751 is interlocked with the first liquid level gauge 721, the low-level tank 73 is provided with a second liquid level gauge 732, the second regulating valve 752 is interlocked with the second liquid level gauge 732, the high-level tank 74 is provided with a third liquid level gauge 743, and the third regulating valve 753 is interlocked with the third liquid level gauge 743.

[0087] In this way, by interlocking the first regulating valve 751 with the first liquid level gauge 721, the second regulating valve 752 with the second liquid level gauge 732, and the third regulating valve 753 with the third liquid level gauge 743, dynamic adjustment of the acid liquid level in the storage tank 72, the low-level tank 73 and the high-level tank 74 is achieved, so that during the acid filling process, the acid liquid can be replenished or stopped in time according to the real-time liquid level of the acid liquid.

[0088] Specifically, the opening of the first regulating valve 751 and the second regulating valve 752 can be multi-stage regulated. When the first regulating valve 751 opening reduces, the acid liquid flow in the delivery line 40 between the first acid liquid pump 71 and the storage tank 72 is controlled to reduce, and when the opening increases, the acid liquid flow in the delivery line 40 between the first acid liquid pump 71 and the storage tank 72 is controlled to increase. Similarly, when the second regulating valve 752 opening reduces, the acid liquid flow in the delivery line 40 between the storage tank 72 and the sub-tank 73 is controlled to reduce, and when the opening increases, the acid liquid flow in the delivery line 40 between the storage tank 72 and the sub-tank 73 is controlled to increase.

[0089] Optionally, the opening of the third regulating valve 753 can be set to be fully closed or fully open. When the third regulating valve 753 is fully closed, the acid solution is stopped from being transported to the header tank 74. When the third regulating valve 753 is fully opened and the second acid pump 731 is running, the acid solution can be transported from the low-level tank 73 to the header tank 74.

[0090] The first liquid level gauge 721 is used to measure the acid liquid level in the storage tank 72, the second liquid level gauge 732 is used to measure the acid liquid level in the low-level tank 73, and the third liquid level gauge 743 is used to measure the acid liquid level in the high-level tank 74. The first liquid level gauge 721 can measure and compare the acid liquid level in the storage tank 72 with the liquid level critical value of the storage tank 72, and control the opening of the first regulating valve 751 based on the comparison result. The second liquid level gauge 732 can measure and compare the acid liquid level in the low-level tank 73 with the liquid level critical value of the low-level tank 73, and control the opening of the second regulating valve 752 based on the comparison result. The third liquid level gauge 743 can measure and compare the acid liquid level in the high-level tank 74 with the liquid level critical value of the high-level tank 74, and control the opening and closing of the third regulating valve 753 based on the comparison result.

[0091] In other examples, the opening of the third regulating valve 753 can also be adjusted in multiple stages. The third liquid level gauge 743 controls the opening of the third regulating valve 753 according to the acid liquid level in the high-level tank 74, thereby adjusting the acid liquid level in the high-level tank 74.

[0092] By controlling the acid liquid level in the high-level tank 74, the height difference between the acid liquid level in the high-level tank 74 and the acid discharge port 311 (acid loading port 210) of the automatic lifting pipe 31 is adjusted, and then the flow rate and flow of the acid liquid from the high-level tank 74 to the acid loading port 210 during the acid loading process are adjusted to be reasonable.

[0093] Optionally, in one example, the critical liquid levels of the storage tank 72 and the low-level tank 73 include three levels: low liquid level, high liquid level, and ultra-high liquid level; the critical liquid level of the high-level tank 74 includes two levels: low liquid level and ultra-high liquid level. During the acid filling process, the principle of dynamically adjusting the acid flow rate of the delivery pipeline 40 is as follows:

[0094] (1) When the acid liquid level in the storage tank 72 is less than or equal to the low liquid level of the storage tank 72, the first regulating valve 751 is fully opened or the opening is increased; as the first regulating valve 751 is fully opened or the opening is increased, the acid liquid level in the storage tank 72 rises. When the acid liquid level in the storage tank 72 reaches the high liquid level of the storage tank 72, the first flowmeter 51 controls the opening of the first regulating valve 751 to decrease; as the opening of the first regulating valve 751 decreases, the acid liquid level in the storage tank 72 continues to rise. When the acid liquid level in the storage tank 72 reaches the ultra-high liquid level of the storage tank 72, the first regulating valve 751 is fully closed.

[0095] (2) When the acid liquid level in the low-level tank 73 is less than or equal to the low liquid level of the low-level tank 73, the second regulating valve 752 is fully opened or the opening is increased; as the second regulating valve 752 is fully opened or the opening is increased, the acid liquid level in the low-level tank 73 rises until the acid liquid level in the low-level tank 73 reaches the high liquid level, and the second flow meter 51 controls the opening of the second regulating valve 752 to decrease; as the opening of the second regulating valve 752 decreases, the acid liquid level in the low-level tank 73 continues to rise, and when the acid liquid level in the low-level tank 73 reaches the ultra-high liquid level of the low-level tank 73, the second regulating valve 752 is fully closed.

[0096] (3) When the acid liquid level in the high-level tank 74 is less than or equal to the low liquid level of the high-level tank 74, the third regulating valve 753 is fully opened; as the third regulating valve 753 is fully opened, the acid liquid level in the high-level tank 74 rises, and when the acid liquid level in the high-level tank 74 reaches the ultra-high liquid level, the third regulating valve 753 is fully closed.

[0097] Optionally, the first liquid level gauge 721, the second liquid level gauge 732 and the third liquid level gauge 743 have recording, control and alarm functions. During the process of transporting acid to the automatic crane 31, they respectively record and control the real-time liquid levels of the storage tank 72, the low-level tank 73 and the high-level tank 74, and issue an alarm when acid overflows, the liquid level is too high, the liquid level is too low or other abnormal conditions occur.

[0098] Optionally, an automatic switching valve 754 is also provided in the delivery pipeline 40. The automatic switching valve 754 can be interlocked with the first liquid level gauge 721, the third liquid level gauge 743, the second liquid level gauge 732 and / or the third liquid level gauge 743, and automatically closed in the event of acid overflow or other emergency situations, thereby interrupting the acid filling process and reducing safety risks.

[0099] Alternatively, in one example, the tank truck 200 enters the parking space, the scanner 20 scans the position information of the acid filling port 210, the automatic crane 31 moves to the position successfully, the valve 52 and the flow meter 51 are opened, the automatic crane 31 extracts the acid liquid temporarily stored in the high-level tank 74, and begins to fill the tank truck 200 with acid. The liquid level critical values of the storage tank 72, the low-level tank 73, and the high-level tank 74 all include low liquid level and high liquid level. During the acid filling process, the dynamic operation process of the automatic acid replenishment of the acid filling system 100 is as follows:

[0100] (1) As the acid filling progresses, the liquid level of the high-level tank 74 decreases. When it decreases to a low liquid level, the third regulating valve 753 and the third liquid level gauge 743 are interlocked and opened, the second acid pump 731 and the third regulating valve 753 are opened, and the low-level tank 73 automatically replenishes acid to the high-level tank 74 until the high-level tank 74 reaches a high liquid level. The second acid pump 731 and the third regulating valve 753 are closed, and the acid replenishment stops.

[0101] (2) As the second acid pump 731 continuously replenishes acid to the high-level tank 74, the liquid level of the low-level tank 73 continuously decreases. When the second liquid level gauge 732 measures that the liquid level of the low-level tank 73 has dropped to a low liquid level, the second regulating valve 752 is interlocked with the second liquid level gauge 732 to open. The second regulating valve 752 opens, and the storage tank 72 automatically replenishes acid to the low-level tank 73 until the low-level tank 73 reaches a high liquid level. The second regulating valve 752 is closed, and the acid replenishment stops.

[0102] (3) As the storage tank 72 continuously replenishes acid to the low-level tank 73, the liquid level of the storage tank 72 continuously decreases. When the first liquid level gauge 721 measures that the liquid level of the storage tank 72 has dropped to the low liquid level, the first regulating valve 751 is interlocked with the first liquid level gauge 721 to open, the first acid pump 71 and the first regulating valve 751 are opened, and the delivery pipeline 40 automatically replenishes acid from the acid preparation area to the storage tank 72 until the storage tank 72 reaches the high liquid level again. The first acid pump 71 and the first regulating valve 751 are closed, and the acid replenishment stops.

[0103] In the description of this specification, reference to the terms "one embodiment," "some embodiments," "certain embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any appropriate manner in any one or more embodiments or examples.

[0104] Although the embodiments of the present application have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions, and variations may be made to the embodiments without departing from the principles and intent of the present application, and that the scope of the present application is defined by the claims and their equivalents.

Claims

1. An acid filling system for automatically filling acid into a tank truck, wherein the tank truck has an acid filling port, characterized in that: The acid loading system comprises: A parking space and a scanner, wherein the parking space is used to park the tank truck, and the scanner is arranged on at least one side of the parking space, and the scanner is used to scan the acid filling port and generate position information of the acid filling port; An acid loading platform, the acid loading platform being arranged above the parking space and comprising a movably arranged automatic crane pipe; a control center, the control center being remotely connected to the scanner and the automatic lifting pipe, respectively, and the control center being used to receive the position information and control the automatic lifting pipe to move according to the position information and to dock with the acid loading port; An acid mist collection device includes a fan, a negative pressure pipe and a demister. The fan is configured to form a negative pressure near the parking space when in operation to drain the acid mist into the negative pressure pipe. The negative pressure pipe is used to transport the acid mist to the demister. The demister is used to treat the acid mist.

2. The acid filling system according to claim 1, characterized in that: The scanner is arranged above the parking space, and the automatic crane has the freedom of movement along three directions that are perpendicular to each other.

3. The acid filling system according to claim 1, characterized in that: The acid loading system includes an identification device, which is connected to the control center by signal. The identification device is used to identify the vehicle information and the acid loading amount of the tank truck and transmit the vehicle information and the acid loading amount to the control center.

4. The acid filling system according to claim 3, characterized in that: The acid loading system includes a delivery pipeline connected to the automatic loading pipe, and the delivery pipeline is provided with a flow meter and a stop valve. The flow meter has a signal connection with the control center, and the flow meter is interlocked with the stop valve. The flow meter is used to measure the acid flow of the automatic loading pipe, and the stop valve is used to stop delivering acid to the automatic loading pipe when the acid flow of the automatic loading pipe reaches the acid loading amount.

5. The acid filling system according to claim 4, characterized in that: The acid loading system includes a prompt device, which has a signal connection with the control center. The prompt device is used to receive and display the vehicle information, the acid loading amount and the acid loading process information. The acid loading process information includes the acid loading start signal, the real-time acid liquid flow rate and the acid loading end signal.

6. The acid filling system according to claim 5, characterized in that: The prompt device includes a display screen component and a broadcasting device. The display screen component includes at least one display screen. The display screen component is used to display the vehicle information and the acid loading process information. The broadcasting device is used to broadcast the acid loading process information.

7. The acid filling system according to claim 1, characterized in that: The acid loading system includes a monitoring device, which is remotely connected to the control center and is used to observe the safety situation around the parking space.

8. The acid filling system according to claim 1, characterized in that: The acid mist collecting device further comprises an acid mist hood, which is arranged at the acid discharge port of the automatic lifting pipe, and the end of the negative pressure pipe extends into the acid mist hood.

9. The acid filling system according to claim 1, characterized in that: The acid loading system includes a delivery pipeline and a first acid pump, a storage tank, a low-level tank and a high-level tank which are connected in sequence by liquid circuits through the delivery pipeline. The position of the low-level tank is lower than the storage tank and the high-level tank, and the storage tank is linked to the liquid level of the low-level tank, and the low-level tank is linked to the liquid level of the high-level tank. The delivery pipeline connects the high-level tank and the automatic lifting pipe.

10. The acid filling system according to claim 9, characterized in that: The delivery pipeline is provided with a first regulating valve, a second regulating valve and a third regulating valve, the first regulating valve is provided between the first acid liquid pump and the storage tank, the second regulating valve is provided between the storage tank and the low-level tank, and the third regulating valve is provided between the low-level tank and the high-level tank; The storage tank is provided with a first liquid level gauge, the first regulating valve is interlocked with the first liquid level gauge, the low-level tank is provided with a second liquid level gauge, the second regulating valve is interlocked with the second liquid level gauge, the high-level tank is provided with a third liquid level gauge, and the third regulating valve is interlocked with the third liquid level gauge.

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