Device for automatically controlling receiving, unloading, conveying and transferring of liquid in railway oil tank truck

Abstract

The utility model belongs to the technical field of oil tank trucks, and particularly relates to an automatic control device for receiving, unloading, conveying and transferring liquid in a railway oil tank truck, which comprises an oil inlet pipe and a horizontal moving mechanism, the lower end of the oil inlet pipe is communicated with a first communicating pipe and a second communicating pipe, and the lower ends of the first communicating pipe and the second communicating pipe are communicated with the same oil outlet pipe. Each first communicating pipe comprises two pipe bodies, the two pipe bodies are each provided with a service valve, the two pipe bodies are each fixedly connected with an electric telescopic pipe, the two electric telescopic pipes are each fixedly connected with a second connecting piece, and the opposite sides of the two second connecting pieces are each fixedly connected with a second sealing ring; the horizontal moving mechanism is provided with a main electromagnetic valve and a standby electromagnetic valve, and the upper end and the lower end of the main electromagnetic valve and the upper end and the lower end of the standby electromagnetic valve are fixedly connected with first connecting pieces. According to the utility model, the shutdown time of the device in the process of overhauling the main electromagnetic valve is reduced.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of oil tank car, concretely relates to a device for automatic control of liquid loading and unloading and transfer in railway oil tank car. BACKGROUND

[0002] Railway oil tank cars play an important role in the transportation of oil, chemicals and other industries, and the process of transferring the liquid in the oil tank car to the oil storage tank and other equipment is crucial. The traditional liquid loading and unloading and transfer process relies heavily on manual operation, which has many problems. For example, manual operation is not only inefficient, but also in the oil unloading operation, due to the involvement of many steps, such as placing the crane pipe, clamping the static clamp, opening and closing various valves, observing the oil level and other operations need to be repeated, the experience and skill requirements of the operating personnel are extremely high, and any carelessness may cause safety accidents, such as backflow accidents caused by delayed valve closure. At the same time, manual operation has high labor intensity, and operating personnel need to concentrate for a long time in complex working environment, which is easy to cause physical fatigue, and also faces the risk of high-altitude operation and inhaling toxic gases.

[0003] In order to improve the efficiency and safety of railway oil tank car liquid loading and unloading and transfer, automatic control device emerges as the times require, such as the Chinese patent with the authorization announcement number CN219194512U discloses a device for automatic control of liquid loading and unloading and transfer in railway oil tank car, which can generate an execution scheme according to the acquired state and data analysis, and drive the field equipment according to the execution scheme, instead of manual operation.

[0004] However, some existing automatic control devices still have certain defects in actual application. For example, once the key solenoid valve in some devices fails and needs to be repaired, the operation of the entire device often needs to be stopped, which will cause the interruption of liquid loading and unloading and transfer, bring inconvenience to production and operation, and cause economic loss. Moreover, during the repair process, the replacement operation of the solenoid valve is complex, and it is difficult to quickly enable the standby solenoid valve, further prolonging the downtime. Therefore, there is an urgent need for a railway oil tank car liquid loading and unloading and transfer automatic control device that can reduce the downtime of the device during solenoid valve repair. CONTENT OF THE UTILITY MODEL

[0005] The utility model aims to provide a device for automatic control of liquid loading and unloading and transfer in railway oil tank car, which can reduce the downtime of the device during repair of the main solenoid valve.

[0006] The technical scheme adopted by the utility model is as follows:

[0007] An automatic control device for unloading and transferring liquids in a railway tank car includes an oil inlet pipe and a horizontal moving mechanism. The lower end of the oil inlet pipe is connected to a first connecting pipe and a second connecting pipe. The lower ends of the first connecting pipe and the second connecting pipe are connected to the same oil outlet pipe. A manual valve is installed on the second connecting pipe.

[0008] Each of the first connecting pipes includes two pipe bodies, each of the two pipe bodies is equipped with a maintenance valve, each of the two pipe bodies is fixedly connected to an electric telescopic pipe, each of the two electric telescopic pipes is fixedly connected to a second connecting piece, and each of the two second connecting pieces is fixedly connected to a second sealing ring on opposite sides.

[0009] The horizontal moving mechanism is equipped with a main solenoid valve and a backup solenoid valve. The upper and lower ends of the main solenoid valve and the backup solenoid valve are fixedly connected to a first connecting piece. A first sealing ring opposite to the second sealing ring is fixedly connected to the first connecting piece.

[0010] Furthermore, a main annular groove is provided on the upper side of the first sealing ring, and the second sealing ring can be snapped into the inside of the main annular groove.

[0011] Furthermore, a secondary annular groove is formed inside the first sealing ring and located on one side of the main annular groove, and an annular groove is formed on one side of the second sealing ring. A sealing ring body is bonded inside the annular groove, and an annular air cavity is formed inside the sealing ring body. An air pump is fixedly connected to the second connecting piece, and the air pump is connected to the annular air cavity.

[0012] Furthermore, a wave-shaped section is provided on the side wall of the secondary annular groove away from the main annular groove.

[0013] The technical effects achieved by this utility model are as follows:

[0014] This utility model discloses an automatic control device for unloading and transferring liquids inside a railway tank car. When overhauling the main solenoid valve, the main solenoid valve and the backup solenoid valve can be replaced relatively easily. Thus, during the overhaul of the main solenoid valve, the backup solenoid valve can maintain the operation of the device, reducing the downtime caused to the device during the overhaul of the main solenoid valve. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the structure of the first connecting tube of this utility model;

[0017] Figure 3 This is a partial cross-sectional view of the first connecting tube of this utility model;

[0018] Figure 4The utility model discloses Figure 3 Partial close -up drawing at A in the middle.

[0019] In the drawing, the component list that each sign represents is as follows:

[0020] 1, oil inlet pipe, 2, first communication pipe, 3, second communication pipe, 4, main electromagnetic valve, 5, hand valve, 6, horizontal moving mechanism, 7, overhaul valve, 8, oil outlet pipe, 9, moving plate, 10, first electric push rod, 11, first connecting piece, 12, first sealing ring, 13, main annular groove, 14, vice annular groove, 15, outer tube, 16, inner tube, 17, second connecting piece, 18, second electric push rod, 19, air pump, 20, second sealing ring, 21, annular groove, 22, sealing ring body, 23, annular air cavity, 24, wave plastic part, 25, guide frame, 26, standby electromagnetic valve. Specific implementation

[0021] In order to make the purpose and the advantage of the utility model more clearly, the following is specifically explained to the utility model with example.It should be understood that the following text is only used to describe one or several specific implementation modes of the utility model, and does not strictly limit the protection scope of the utility model specifically requested.

[0022] As Figures 1-4 Shown, a railway oil tank car liquid unloading transfer automatic control device, including unloading execution unit and single crane position information control unit;

[0023] Among them, single crane position information control unit has been disclosed in the authorized announcement number CN219194512U of Chinese patent, and the technical scheme will not be described in detail.

[0024] As Figures 1-3 Shown, the core of the technical scheme is that unloading execution unit includes oil inlet pipe 1, the upper end of oil inlet pipe 1 is fixedly connected with three-way valve, the three-way valve is connected with the crane pipe of oil tank car and the sweep groove interface for intercommunication, for the entry of oil.

[0025] The lower end of oil inlet pipe 1 is communicated with first communication pipe 2 and second communication pipe 3, and the lower end of first communication pipe 2 and second communication pipe 3 is communicated with the same oil outlet pipe 8, for the discharge of oil, and hand valve 5 is installed on second communication pipe 3;

[0026] Among them, first communication pipe 2 includes two pipe bodies, overhaul valve 7 is installed on the two pipe bodies, electric telescopic pipe is fixedly connected on the two pipe bodies, second connecting piece 17 is fixedly connected on the two electric telescopic pipes, second connecting piece 17 is fixedly connected on the opposite side of the two second connecting pieces 17, and second sealing ring 20 is fixedly connected on the opposite side of the two second connecting pieces 17, and electromagnetic valve station is between the two second sealing rings 20.

[0027] The device further comprises a horizontal moving mechanism 6, the main electromagnetic valve 4 and the standby electromagnetic valve 26 are installed on the horizontal moving mechanism 6, the upper end and the lower end of the main electromagnetic valve 4 and the standby electromagnetic valve 26 are fixedly connected with the first connecting piece 11, the first connecting piece 11 is fixedly connected with the first sealing ring 12 opposite to the second sealing ring 20;

[0028] When the main electromagnetic valve 4 in use is overhauled and replaced, the main electromagnetic valve 4 can be moved out of the electromagnetic valve station by starting the horizontal moving mechanism 6, the main electromagnetic valve 4 is overhauled, at the same time, the standby electromagnetic valve 26 is moved to the electromagnetic valve station, the operation of the first communication pipe 2 is maintained through the standby electromagnetic valve 26, and the downtime of the device during the process of overhauling the main electromagnetic valve 4 is reduced.

[0029] As shown in Figures 1-2 , the horizontal moving mechanism 6 comprises a guide frame 25, the guide frame 25 can be fixedly connected to the existing support, the moving plate 9 is slidably connected to the guide frame 25, the main electromagnetic valve 4 and the standby electromagnetic valve 26 are fixedly connected to the moving plate 9, the first electric push rod 10 is fixedly connected to the guide frame 25, and the piston rod of the first electric push rod 10 is fixedly connected to the moving plate 9, at this time, the position of the main electromagnetic valve 4 and the standby electromagnetic valve 26 can be adjusted synchronously by starting the first electric push rod 10 to drive the moving plate 9 to move.

[0030] As shown in Figures 1-2 , the electric telescopic pipe comprises an outer pipe 15 in communication with the pipe body, the inner pipe 16 fixedly connected with the second connecting piece 17 is slidably connected in the outer pipe 15, the second electric push rod 18 is fixedly connected to the outer pipe 15, and the piston rod of the second electric push rod 18 is fixedly connected to the second connecting piece 17, at this time, the inner pipe 16 can be driven to extend and retract by starting the second electric push rod 18.

[0031] As shown in Figures 2-4 , the upper side of the first sealing ring 12 is provided with a main annular groove 13, and the second sealing ring 20 can be clamped in the inside of the main annular groove 13, so that the shape of the gap between the second sealing ring 20 and the first sealing ring 12 can be changed, and the sealing performance is improved.

[0032] Further, the inside of the first sealing ring 12 and the position on one side of the main annular groove 13 can be provided with a secondary annular groove 14, one side of the second sealing ring 20 is provided with an annular groove 21, the inside of the annular groove 21 is bonded with a sealing ring body 22, the inside of the sealing ring body 22 is provided with an annular air cavity 23, the air pump 19 is fixedly connected to the second connecting piece 17, the air pump 19 is in communication with the annular air cavity 23, when the air pump 19 inflates the annular air cavity 23, the annular air cavity 23 can be expanded and extended to the inside of the secondary annular groove 14, and the sealing performance between the first sealing ring 12 and the second sealing ring 20 is further improved.

[0033] AsFigures 3-4 As shown, the wave-shaped wave shaping part 24 can be arranged on the side wall of the secondary annular groove 14 away from the primary annular groove 13, and when the sealing ring body 22 and the wave shaping part 24 abut, the shape of the side wall of the sealing ring body 22 is shaped, and the shape of the gap between the second sealing ring 20 and the first sealing ring 12 can be changed through the wave-shaped structure, and the sealing performance is improved.

[0034] The above is only the preferred embodiment of the present application, it should be pointed out that, for those skilled in the art, without departing from the principles of the present application, under the premise of, can make a number of improvements and refinements, these improvements and refinements should also be considered as the protection scope of the present application. The structure, device and operation method not specifically described and explained in the present application, if no special description and limitation, are implemented according to the conventional means in the art.

Claims

1. A device for automatic control of liquid unloading and transfer in railway tank cars, characterized in that: Including oil inlet pipe (1) and horizontal moving mechanism (6), the lower end of the oil inlet pipe (1) is communicated with first communication pipe (2) and second communication pipe (3), the lower end of the first communication pipe (2) and the second communication pipe (3) is communicated with the same oil outlet pipe (8), the second communication pipe (3) is provided with a manual valve (5); The first communication pipe (2) comprises two pipe bodies, the two pipe bodies are provided with an inspection valve (7), and the two pipe bodies are fixedly connected with an electric telescopic pipe, the electric telescopic pipe is fixedly connected with a second connecting piece (17), and the second connecting piece (17) is fixedly connected with a second sealing ring (20) on the opposite side. The horizontal moving mechanism (6) is provided with a main electromagnetic valve (4) and a standby electromagnetic valve (26), the upper end and the lower end of the main electromagnetic valve (4) and the standby electromagnetic valve (26) are fixedly connected with a first connecting piece (11), and the first connecting piece (11) is fixedly connected with a first sealing ring (12) opposite to the second sealing ring (20).

2. An automatic control device for loading and unloading of liquid in a railway tank car according to claim 1, characterized in that: The horizontal moving mechanism (6) comprises a guide frame (25), the guide frame (25) is slidably connected with a moving plate (9), the main electromagnetic valve (4) and the standby electromagnetic valve (26) are fixedly connected to the moving plate (9), the guide frame (25) is fixedly connected with a first electric push rod (10), and the piston rod of the first electric push rod (10) is fixedly connected with the moving plate (9).

3. An automatic control device for loading and unloading of liquid in a railway tank car according to claim 1, characterized in that: The electric telescopic pipe comprises an outer pipe (15) communicated with the pipe body, the inner pipe (16) fixedly connected with the second connecting piece (17) is slidably connected in the outer pipe (15), the outer pipe (15) is fixedly connected with a second electric push rod (18), and the piston rod of the second electric push rod (18) is fixedly connected with the second connecting piece (17).

4. The automatic control device for loading and unloading of liquid in a railway tank car according to claim 1, characterized in that: The upper side of the first sealing ring (12) is provided with a main annular groove (13), and the second sealing ring (20) can be clamped in the main annular groove (13).

5. An automatic control device for loading and unloading of liquid in a railway tank car according to claim 4, characterized in that: The inner side of the first sealing ring (12) and the side of the main annular groove (13) are provided with a secondary annular groove (14), one side of the second sealing ring (20) is provided with an annular groove (21), the inner side of the annular groove (21) is bonded with a sealing ring body (22), the inner side of the sealing ring body (22) is provided with an annular air cavity (23), the second connecting piece (17) is fixedly connected with an air pump (19), and the air pump (19) is communicated with the annular air cavity (23).

6. An automatic control device for loading and unloading of liquid in a railway tank car according to claim 5, characterized in that: The side wall of the secondary annular groove (14) away from the main annular groove (13) is provided with a wave-shaped portion (24).

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