Intelligent liquid sulfur loading device

Abstract

The utility model relates to an intelligent liquid sulfur loading device which comprises a storage tank, a delivery pump, a stop valve, a flow guide pipe and a controller, the outlet of the delivery pump inserted into the storage tank, the stop valve and the flow guide pipe are sequentially connected through a liquid sulfur delivery pipeline; the liquid sulfur conveying pipeline between the stop valve and the conveying pump is connected with a backflow pipeline, the other end of the backflow pipeline is connected with a storage tank, and the backflow pipeline is provided with a backflow valve; the flow guide pipe can move up and down along the liquid sulfur outlet of the liquid sulfur conveying pipeline; and moving parts of the conveying pump, the stop valve, the return valve and the flow guide pipe are electrically connected with the controller. According to the device, full-intelligent truck loading is achieved, and manual operation is not needed; the movable sleeving structure between the flow guide pipe and the tail end of the liquid sulfur conveying pipeline moves up and down through the movable component, the fatigue failure phenomenon is avoided, and damage is not prone to occurring.

Description

Technical Field

[0001] The utility model relates to the technical field of liquid sulfur loading, in particular to an intelligent liquid sulfur loading device. Background Art

[0002] The liquid sulfur loading process in liquid sulfur transportation mainly adopts gravity straight pipe, flat cover plate, conical sealing cap and other methods for loading. The existing liquid sulfur loading mainly adopts gravity straight pipe. There are two main types of commonly used loading crane pipes:

[0003] The first method is to add a steam jacket to the crane pipe for loading ordinary chemical liquids. Manual on-site operation is required during loading. Liquid sulfur will evaporate irritating sulfur vapor, which has a great impact on the health of operators during the loading process. Long-term contact will affect the health of personnel.

[0004] The second type is a lifting liquid sulfur loading crane pipe, which uses a pneumatic regulating device to adjust the lifting of the loading crane pipe. When loading, the pneumatic regulating device lowers the liquid sulfur pipeline to the filling port for loading. When not loading, the pneumatic regulating device restores the liquid sulfur pipeline to its initial position. The disadvantage is that the tank truck needs to be finalized. If the shape of the tank truck changes, it may be necessary to readjust the crane pipe to adapt to the new tank truck.

[0005] For example, a liquid sulfur sealed loading device disclosed in the authorization announcement number CN217732674U includes an air guide pipe, a delivery pump and a flow meter are connected in series in sequence on the guide pipe, and the end of the guide pipe is connected to the sealed tank of the vehicle body through a liftable guide pipe. There are several storage tanks, and any storage tank is connected to the initial end of the guide pipe. A quick-cut valve is also connected in series between the flow meter on the guide pipe and the liftable guide pipe. A liquid inlet head is provided at the end of the liftable guide pipe, a liquid inlet passage is opened laterally, and an exhaust passage is opened vertically, and the exhaust passage is connected to any storage tank through an air guide pipe connected in series with an evacuator.

[0006] Although the above-mentioned device can avoid gas leakage in the vehicle by loading in a sealed manner, thereby preventing the operator from being exposed to toxic gases for a long time, the connection of the liftable guide pipe is still manually connected, and it is unable to realize the functions of automatic centering, loading and quantitative loading, which increases the chance of exposure to toxic and harmful gases and the labor intensity during on-site operations.

[0007] As an improvement, CN212655460U discloses a liquid sulfur loading system, which includes eight parts: transportation, quantitative, loading crane, automatic positioning, closed loading, exhaust gas extraction, exhaust gas treatment, and safety assurance. The system realizes automatic centering and positioning of the crane, protects the environment and the safety and health of operators, and realizes safe quantitative and closed loading of liquid sulfur.

[0008] However, the automatic centering crane pipe is prone to fatigue failure at the connection due to frequent lifting and lowering. In addition, in order to prevent the liquid sulfur from condensing, the liquid sulfur vehicle needs to cover the liquid sulfur pipeline and the crane pipe with heating jackets respectively. Once the crane pipe fails, the replacement cost is high and the replacement time is long. Summary of the invention

[0009] The purpose of the utility model is to solve the problems existing in the prior art, and to propose an intelligent liquid sulfur loading device, which can directly control the connection between the liftable guide pipe and the liquid sulfur car through a controller, and then combined with a weighing unit to realize intelligent loading, without the need for personnel to operate, which not only saves manpower but also has higher safety. In particular, by changing the structure of the traditional crane pipe, an automatically liftable guide pipe is sleeved at the outlet of the liquid sulfur conveying pipeline to replace the traditional crane pipe. Since the guide pipe does not directly contact the liquid sulfur, the outside does not need to be covered with a heating sleeve. And by moving the cylinder up and down, there will be no fatigue failure phenomenon, it is not easy to be damaged, which improves production efficiency and reduces production costs.

[0010] The present invention adopts the following technical scheme.

[0011] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0012] An intelligent liquid sulfur loading device comprises a storage tank, a delivery pump, a cut-off valve, a guide pipe, and a controller; the delivery pump outlet, the cut-off valve, and the guide pipe inserted into the storage tank are connected in sequence through a liquid sulfur delivery pipeline; a reflux pipeline is connected to the liquid sulfur delivery pipeline between the delivery pump outlet and the cut-off valve, the other end of the reflux pipeline is connected to the storage tank, and a reflux valve is arranged on the reflux pipeline; the guide pipe can move up and down along the liquid sulfur outlet of the liquid sulfur delivery pipeline; the delivery pump, the cut-off valve, the reflux valve, and the moving parts of the guide pipe are electrically connected to the controller;

[0013] With the device of the utility model, since the guide pipe is sleeved on the end of the liquid sulfur delivery pipeline, it can be moved up and down along the outlet of the liquid sulfur delivery pipeline under the drive of the moving component. During the loading procedure, the moving component is driven to move the guide pipe downward to contact with the tank opening on the upper part of the liquid sulfur vehicle, or to insert into the tank opening; the shut-off valve is opened, the delivery pump is started, and the liquid sulfur in the storage tank is delivered to the liquid sulfur vehicle through the liquid sulfur delivery pipeline; when the loading procedure is ended, the delivery pump is closed, the reflux valve is opened, and the liquid sulfur in the liquid sulfur delivery pipeline is refluxed to the storage tank through the reflux pipeline, and the guide pipe is moved upward and separated from the liquid sulfur vehicle. Fully intelligent loading is realized without manual operation; the movable sleeve structure between the guide pipe and the end of the liquid sulfur delivery pipeline, and the movement up and down by the moving component, will not have the phenomenon of fatigue failure, and is not easy to be damaged.

[0014] As an improvement, the intelligent liquid sulfur loading device includes a storage tank, a delivery pump, a main control valve, a shut-off valve, a guide pipe, and a controller; the delivery pump outlet inserted into the storage tank, the main control valve, the shut-off valve, and the guide pipe are connected in sequence through a liquid sulfur delivery pipeline; the liquid sulfur delivery pipeline between the shut-off valve and the main control valve is connected to a reflux pipeline, the other end of the reflux pipeline is connected to the storage tank, and a reflux valve is arranged on the reflux pipeline; the guide pipe can move up and down along the liquid sulfur outlet of the liquid sulfur delivery pipeline; the moving parts of the delivery pump, the shut-off valve, the main control valve, the reflux valve, and the guide pipe are electrically connected to the controller;

[0015] By adopting the device of the utility model, by setting the main control valve, the outward output of the liquid sulfur delivery pipeline can be cut off in time when an unexpected situation occurs during filling, thereby increasing the safety of the device.

[0016] The following functions can be realized through the controller: during the loading procedure, the moving parts are driven to move the guide pipe downward to contact with the tank opening on the upper part of the liquid sulfur vehicle, or to insert into the tank opening; the cut-off valve and the main control valve are opened, the delivery pump is started, and the liquid sulfur in the storage tank is sent to the liquid sulfur vehicle through the liquid sulfur delivery pipeline; when the loading procedure is completed, the delivery pump and the main control valve are closed, the reflux valve is opened, and the liquid sulfur in the liquid sulfur delivery pipeline flows back to the storage tank through the reflux pipeline, and the guide pipe is moved upward to be separated from the liquid sulfur vehicle.

[0017] A further improvement is that the liquid sulfur delivery pipeline forms an inverted U-shaped bend near the outlet of the liquid sulfur delivery pipeline. With this structure, when loading is completed, the delivery pump and the main control valve are closed, and the reflux valve is opened. The liquid sulfur in the pipeline at the highest bend flows to the reflux pipeline by gravity, which can effectively drain the liquid sulfur in the pipeline and prevent the liquid sulfur from solidifying in the pipeline after cooling.

[0018] A further improvement is that the reflux valve is a reflux control valve. When the liquid sulfur truck is about to finish loading, the controller controls the valve opening of the reflux control valve, thereby controlling the liquid sulfur loading speed, thereby avoiding the problem of excessive liquid sulfur loading speed, which may cause the liquid sulfur truck to overflow, and further improving safety.

[0019] A further improvement is to install heating jackets on the liquid sulfur delivery pipeline, reflux pipeline, cut-off valve, main control valve, and reflux control valve to prevent the liquid sulfur from solidifying and clogging in the pipeline and valve. The heating jacket can be a steam heating jacket or an electric heating jacket.

[0020] A further improvement is that it also includes a liquid sulfur vehicle, the liquid sulfur vehicle is equipped with a weighing unit, and the weighing unit is electrically connected to the controller. The controller receives a weighing signal from the weighing unit, and when the liquid sulfur vehicle reaches the set loading amount, the loading end procedure is started.

[0021] A further improvement is that a distance measuring unit is arranged on the side of the guide tube, and the distance measuring unit is electrically connected to the controller. Through the controller, the distance of the guide tube moving up and down is accurately controlled to reach the set position.

[0022] A further improvement is that camera units are provided on both sides of the guide tube, and the camera units are electrically connected to the controller. A display unit is also included, and the display unit is wirelessly connected to the controller in two-way communication. Through the display screen, it is possible to visually see whether the position between the tank opening of the liquid sulfur vehicle and the guide tube is aligned, and the position of the liquid sulfur vehicle is adjusted. The distance between the guide tube and the tank opening can also be seen. After confirming that the guide tube is successfully inserted into the tank opening of the liquid sulfur vehicle, the buttons on the display screen are operated to send a signal to the controller, and through the controller, the loading program and / or the loading end program are started to realize wireless remote control.

[0023] A further improvement is that the display unit is two display screens, one of which is connected to the controller by wireless two-way communication for use by the staff in the liquid sulfur station. After confirming that the guide tube is successfully inserted into the tank port of the liquid sulfur vehicle, the staff operates the buttons on the display screen to send a signal to the controller, and through the controller, the loading program and / or the loading end program are started to achieve wireless remote control. The other is placed on the liquid sulfur vehicle and is connected to the controller by wireless communication for the driver to confirm whether the position between the tank port of the liquid sulfur vehicle and the guide tube is aligned and adjust the position of the liquid sulfur vehicle.

[0024] Preferably, the guide tube is a sleeve with an opening facing downward.

[0025] Preferably, the distance measuring unit is three laser rangefinders attached to the sides of the guide tube. In addition to measuring the distance between the guide tube and the tank mouth, it can also determine whether the guide tube and the tank mouth are aligned by whether the measurement data of the three rangefinders are consistent. If not, the controller will not start the loading program.

[0026] Preferably, the vehicle weighing unit is a truck scale.

[0027] Preferably, the moving component is a cylinder.

[0028] Compared with the prior art, the utility model has the following beneficial effects:

[0029] The utility model can remotely and automatically control the lifting and lowering of the liftable guide pipe of the steam jacket liquid sulfur outlet pipeline by setting a liftable guide pipe on the steam jacket liquid sulfur outlet pipeline, and then by controlling the connection and separation of the liftable guide pipe and the liquid sulfur vehicle, the liquid sulfur vehicle is fully intelligently and quantitatively loaded without manual operation, and there is no need to heat the liftable guide pipe, which optimizes the product structure, avoids the problem of operators being exposed to toxic gases for a long time and seriously endangering the health of the operators, not only can save manpower, but also has higher safety and lower production costs. At the same time, by setting a steam jacket reflux pipeline and a steam jacket reflux control valve for use, the steam jacket reflux control valve can be opened at a constant speed in the two stages of the initial loading of the liquid sulfur vehicle and the near end of the loading, so as to control the liquid sulfur loading speed, thereby avoiding the problem of the liquid sulfur vehicle overflowing due to the excessive liquid sulfur loading speed, and further improving safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 This is a schematic diagram of the structure of an intelligent liquid sulfur loading vehicle proposed by the utility model;

[0031] Figure 2 It is a control flow diagram of the utility model.

[0032] Figure 3 It is a structural schematic diagram of the liquid sulfur pipeline of the utility model.

[0033] Figure 4 It is a structural schematic diagram of the flow guide pipe of the utility model.

[0034] Figure 5 It is a partial bottom view schematic diagram of the flow guide pipe of the utility model.

[0035] In the figure: 1. storage tank; 2. liquid sulfur delivery pipeline; 3. delivery pump; 4. shut-off valve; 5. guide pipe; 6. liquid sulfur vehicle; 7. outlet of liquid sulfur delivery pipeline; 8. reflux pipeline; 9. reflux control valve; 10. controller; 11. cylinder; 12. vehicle weighing unit; 13. distance measuring unit; 14. camera unit; 15. display unit; 16. main control valve; 17-19. laser rangefinder; 20-21. camera; 22. liquid sulfur; 23. steam jacket. DETAILED DESCRIPTION

[0036] The present invention will be further described below in conjunction with the accompanying drawings, but the present invention is not limited to the scope of the described embodiments.

[0037] The words "first", "second" and similar words used in the embodiments of the present disclosure do not indicate any order, quantity or importance, but are only used to distinguish different components. Words such as "one", "an" or "the" and similar words do not indicate a quantity limitation, but rather indicate the presence of at least one. Similarly, words such as "include" or "comprise" mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. Words such as "connect" or "connected" and similar words are not limited to physical or mechanical connections, but may include electrical connections or communication connections, whether direct or indirect.

[0038] See also Figure 1-2 , an intelligent liquid sulfur loading device, including a storage tank 1, a delivery pump 3, a steam jacket main control valve 16, a steam jacket cut-off valve 4, a liftable guide pipe 5 and a liquid sulfur car 6, a vehicle weighing unit 12 is arranged below the liquid sulfur car 6, and the delivery pump outlet, the main control valve, the cut-off valve, and the guide pipe are connected in sequence through a steam jacket liquid sulfur delivery pipeline 2; the steam jacket liquid sulfur delivery pipeline 2 between the cut-off valve and the main control valve is connected to a steam jacket return pipeline 8, and the other end of the steam jacket return pipeline 8 is connected to the storage tank 1, and the steam jacket return pipeline 8 is provided with a steam jacket return control valve 9; the guide pipe is a sleeve with an opening downward. It also includes a controller 10, which is electrically connected to the delivery pump 3, the steam jacket cut-off valve 4, the steam jacket main control valve 16, the steam jacket return control valve 9, the guide pipe lifting drive component, and the vehicle weighing unit 12 respectively. A distance measuring unit 13 is arranged on the side of the guide tube, and a camera unit 14 is arranged on both sides of the guide tube. The distance measuring unit and the camera unit are electrically connected to the controller. A display unit 15 is also included, and the display unit is connected to the controller by wireless two-way communication.

[0039] It can be known from the above structure that: through the controller, the liftable guide pipe 5 arranged on the outlet 7 of the steam jacket liquid sulfur delivery pipeline can be moved up and down along the outlet of the liquid sulfur delivery pipeline, so as to connect the liquid sulfur delivery pipeline with the tank port on the upper part of the liquid sulfur car 6; by setting the steam jacket main control valve 16, the outward output of the steam jacket liquid sulfur delivery pipeline 2 can be cut off in time when an unexpected situation occurs during filling, thereby increasing the safety of the device. At the same time, by setting the steam jacket reflux pipeline 8 and the steam jacket reflux control valve 9 in conjunction, the steam jacket reflux control valve 9 can be gradually opened when the liquid sulfur car 6 is almost full, thereby gradually reducing the speed of adding liquid sulfur into the liquid sulfur car 6, thereby avoiding the problem of too fast adding liquid sulfur into the liquid sulfur car 6, which may cause the liquid sulfur car 6 to overflow.

[0040] Through the controller, the following functions can be realized: in the loading procedure, the vehicle weighing unit 12 first weighs the weight of the liquid sulfur car 6, and outputs the weighing signal to the controller, and then the controller 10 controls the liftable guide pipe 5 at the outlet of the steam jacket liquid sulfur conveying pipeline to move downward, and one end of the liftable guide pipe 5 is inserted into the tank port of the liquid sulfur car 6, and then the controller 10 controls the delivery pump 3 and the steam jacket main control valve and the steam jacket cut-off valve 4 to open, and the liquid sulfur car 6 is filled, and the amount of liquid sulfur added to the liquid sulfur car 6 is judged according to the change of the weighing signal of the weighing unit. When the filling is about to be completed, the controller controls the steam jacket reflux control valve 9 to gradually open, and gradually reduces the speed of adding liquid sulfur to the liquid sulfur car 6, thereby avoiding the speed of adding liquid sulfur to the liquid sulfur car 6 too fast, which may cause the problem of overflow of the liquid sulfur car 6; after the filling is completed, the loading end procedure is started, the controller controls the delivery pump 3 and the main control valve 16 to close, the liquid sulfur in the conveying pipeline flows back to the storage tank, and the guide pipe moves up to separate from the liquid sulfur car.

[0041] like Figure 4 , Figure 5 As shown, the elevating guide tube 5 is fixedly connected to the cylinder 11, and the cylinder drives the guide tube to move up and down. The cylinder is electrically connected to the controller. Three laser rangefinders 17, 18, and 19 are arranged on the side wall of the guide tube. When the measurement data of the three rangefinders are correct, it can be judged that the elevating guide tube and the tank mouth are aligned. If the measurement data of one or two laser rangefinders are wrong, the downward movement of the guide tube will be prohibited. Ensure that the elevating guide tube 5 is correctly connected to the tank mouth of the liquid sulfur vehicle. Figure 1 As shown, two high-definition cameras 20 and 21 are installed in the loading area on both sides of the guide pipe. AI intelligent image recognition technology is used to confirm that the liftable guide pipe 5 is correctly connected to ensure that liquid sulfur does not overflow during loading.

[0042] As an embodiment, a display unit is also provided in the loading area of ​​the liquid sulfur vehicle. The laser rangefinder, the camera, the display unit and the controller are electrically connected; the display unit is placed in the cab to facilitate the operation centering of the liquid sulfur vehicle 6 driver, and to operate the buttons of the display unit, output signals to the controller, start the loading procedure, and end the loading procedure.

[0043] As another embodiment, there can also be two display units, which are placed in the cab and the loading area respectively, one for the driver to observe and use, and the other for the station manager to observe and operate the output control signal. A laser rangefinder and a camera are set to be used in conjunction with the display unit. A display screen is placed in the cab, which can facilitate the driver of the liquid sulfur vehicle 6 to observe the position between the tank mouth of the liquid sulfur vehicle 6 and the liftable guide pipe on the steam jacket liquid sulfur outlet pipeline 7 and the tank mouth, thereby facilitating the operation of the liquid sulfur vehicle 6 The driver's alignment; the station manager starts the loading program and ends the program by operating the controller.

[0044] like Figure 1 As shown, the liquid sulfur delivery pipeline forms an inverted U-shaped bend near the outlet of the liquid sulfur delivery pipeline.

[0045] like Figure 1 and Figure 2 As shown, the vehicle weighing unit 12 is a truck scale; by setting up the truck scale, the liquid sulfur truck 6 can be weighed in real time, and the weighing signal can be transmitted to the controller.

[0046] like Figure 3 As shown, the steam jacket 23 is used on the outside of the steam jacketed liquid sulfur delivery pipeline and the steam jacketed reflux pipeline. In addition, the steam jacketed main control valve, steam jacketed cut-off valve, and steam jacketed reflux control valve used in the pipeline are all insulated with steam jackets to ensure that the liquid sulfur 22 transported in the pipeline does not solidify.

[0047] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

[0048] The preferred specific embodiments of the present invention are described in detail above. It should be understood that a person skilled in the art can make many modifications and changes based on the concept of the present invention without creative work. Therefore, any technical solution that can be obtained by a person skilled in the art through logical analysis, reasoning or limited experiments based on the concept of the present invention on the basis of the prior art should be within the scope of protection determined by the claims.

Claims

1. An intelligent liquid sulfur loading device, characterized in that: It includes a storage tank, a delivery pump, a shut-off valve, a guide pipe, and a controller; the delivery pump outlet inserted into the storage tank, the shut-off valve, and the guide pipe are connected in sequence through a liquid sulfur delivery pipeline; a reflux pipeline is connected to the liquid sulfur delivery pipeline between the shut-off valve and the delivery pump, the other end of the reflux pipeline is connected to the storage tank, and a reflux valve is arranged on the reflux pipeline; the guide pipe can move up and down along the liquid sulfur outlet of the liquid sulfur delivery pipeline; the moving parts of the delivery pump, the shut-off valve, the reflux valve, and the guide pipe are electrically connected to the controller.

2. The intelligent liquid sulfur loading device according to claim 1 is characterized in that: A main control valve is also provided on the liquid sulfur delivery pipeline between the delivery pump and the cut-off valve; one end of the reflux pipeline is connected to the liquid sulfur delivery pipeline between the cut-off valve and the main control valve, and the other end of the reflux pipeline is connected to the storage tank; the main control valve is electrically connected to the controller.

3. The intelligent liquid sulfur loading device according to claim 1 is characterized in that: The liquid sulfur delivery pipeline forms an inverted U-shaped bend near the outlet of the liquid sulfur delivery pipeline.

4. The intelligent liquid sulfur loading device according to claim 1 is characterized in that: The reflux valve is a reflux control valve.

5. The intelligent liquid sulfur loading device according to claim 1 is characterized in that: A heating jacket is installed on the liquid sulfur delivery pipeline, the reflux pipeline, the cut-off valve, the main control valve and the reflux control valve.

6. The intelligent liquid sulfur loading device according to claim 1, characterized in that: It also includes a liquid sulfur vehicle, which is equipped with a weighing unit, and the weighing unit is electrically connected to the controller.

7. The intelligent liquid sulfur loading device according to claim 1 is characterized in that: A distance measuring unit is arranged on the side of the flow guide pipe, and the distance measuring unit is electrically connected to the controller.

8. The intelligent liquid sulfur loading device according to claim 1 is characterized in that: Camera units are arranged on both sides of the guide tube, and the camera units are electrically connected to the controller; a display unit is also included, and the display unit is wirelessly connected to the controller for two-way communication.

9. The intelligent liquid sulfur loading device according to claim 8, characterized in that: The display unit is composed of two display screens, one of which is connected to the controller via wireless two-way communication; and the other is connected to the controller via wireless communication.

10. The intelligent liquid sulfur loading device according to claim 1, characterized in that: The flow guide pipe is a sleeve with an opening downward.

11. The intelligent liquid sulfur loading device according to claim 7, characterized in that: The distance measuring unit is three laser distance measuring devices attached to the sides of the guide tube.

12. The intelligent liquid sulfur loading device according to claim 1, characterized in that: The moving part is a cylinder.

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