CN219526245U

CN219526245U - Liquid level monitoring and controlling device for loading and unloading truck of crane pipe

Info

Publication number: CN219526245U
Application number: CN202320553305.XU
Authority: CN
Inventors: 李小明; 狄延龙; 马玉坤
Original assignee: Beijing Mountain Industry Co
Current assignee: Beijing Mountain Industry Co
Priority date: 2023-03-21
Filing date: 2023-03-21
Publication date: 2023-08-15
Anticipated expiration: 2033-03-21

Abstract

The utility model discloses a loading arm loading and unloading truck liquid level monitoring control device in the field of loading arm loading and unloading truck liquid level monitoring, which comprises a sealing cap, a vertical pipe and an outer arm, wherein the vertical pipe is fixedly connected to the middle position of the top of the sealing cap in a penetrating way, the outer arm is rotatably connected to the top of the outer side of the vertical pipe, the loading arm loading and unloading truck liquid level monitoring control device is used for carrying out real-time monitoring on the liquid level of the liquid level by installing an upper pressure taking port pipe and a lower pressure taking port guide pipe of the vertical pipe, collecting the pressure at the upper cavity and the bottom of the liquid of a tank truck, using the pressure taking guide pipe to convey the pressure difference to a differential pressure transmitter to calculate the pressure difference, converting the pressure difference into an electric signal through the differential pressure transmitter, transmitting the differential pressure signal to a liquid level monitoring controller, connecting the differential pressure signal to the controller through a signal cable, displaying the liquid level on a screen of the controller, and simultaneously transmitting the differential pressure signal to a central control chamber for displaying on a computer, and fully solving the problem of unclear liquid level during loading and unloading on site.

Description

Liquid level monitoring and controlling device for loading and unloading truck of crane pipe

Technical Field

The utility model relates to the technical field of liquid level monitoring of a loading and unloading truck of a loading and unloading arm, in particular to a liquid level monitoring and controlling device of the loading and unloading truck of the loading and unloading arm.

Background

The loading arm is a telescopic movable pipe, is mainly used for loading and unloading liquid in petroleum and chemical wharfs, and is divided into various types, and compared with the old hose, the loading arm has the advantages of high safety, flexibility and the like, and is used for controlling the discharge of atmospheric pollutants, improving the atmospheric environment and ensuring that the loading arm of a loading and unloading truck for storing and transporting oil reservoirs is always a sealed loading and unloading truck.

At present, since the oil filling riser is additionally provided with the sealing cap, a field operator and a central control room cannot know the liquid level position in the tank truck at any time, but an anti-overflow oil controller and a low liquid level controller are commonly used in the market, when the liquid level reaches a detection position, the liquid level position in the process of loading and unloading the truck cannot be clearly known, the equipment for monitoring the liquid level in the market at present has ultrasonic waves and laser, but the equipment needs to have a power supply to enter the tank truck, potential safety hazards exist, and meanwhile, the error is larger, so that the liquid level monitoring and controlling device of the oil filling riser loading and unloading truck is provided.

Disclosure of Invention

The utility model aims to provide a liquid level monitoring and controlling device of a loading and unloading truck for solving the problems that in the prior art, as a sealing cap is additionally arranged on the loading and unloading truck, a field operator and a central control room cannot know the liquid level position in a tank truck at any time, an anti-overflow oil controller and a low liquid level controller are commonly used in the market, when the liquid level reaches a detection position, the liquid level position in the loading and unloading truck cannot be clearly known, the current equipment for monitoring the liquid level in the market has ultrasonic waves and laser, but both the equipment needs a power supply to enter the tank truck, potential safety hazards exist and errors are larger.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a crane pipe loading and unloading car liquid level monitoring controlling means, includes sealing cap, vertical tube and outer arm, vertical tube run through fixedly connected in sealing cap top intermediate position department, outer arm rotate connect in vertical tube outside top, vertical tube lateral wall top runs through and has seted up and got the pressure mouth, go up and get the inside fixedly connected with of pressure mouth and get the pressure mouth pipe, vertical tube lateral wall bottom runs through and has seted up down and got the pressure mouth, get the inside fixedly connected with of pressure mouth and get the pressure mouth pipe down, outer arm lateral wall fixedly connected with differential pressure transmitter, differential pressure transmitter's bottom fixedly connected with signal cable, differential pressure transmitter top symmetry fixedly connected with gets the pressure pipe.

As a further description of the above technical solution:

the upper pressure tapping guide pipe and the lower pressure tapping guide pipe are positioned in the vertical pipe and penetrate through and extend to the top of the vertical pipe.

As a further description of the above technical solution:

the upper pressure taking opening is positioned at the upper cavity of the tank truck at the lower end of the sealing cap, and the lower pressure taking opening is positioned at the lower part of the vertical pipe.

As a further description of the above technical solution:

the inlet ends of the pressure taking guide pipes are provided with two, and the inlet ends of the two pressure taking guide pipes are fixedly connected with the outlet ends of the upper pressure taking port guide pipes and the lower pressure taking port guide pipes respectively.

As a further description of the above technical solution:

the signal output end of the signal cable is connected with the signal input end of the controller.

As a further description of the above technical solution:

the input end of the differential pressure transmitter is electrically connected with the output end of the external power supply through a lead.

Compared with the prior art, the utility model has the beneficial effects that:

this crane pipe loading and unloading car liquid level monitoring controlling means through installing the last pressure mouth pipe of getting at the vertical tube and getting pressure mouth pipe down, collects tank car liquid upper portion cavity department and bottom pressure, utilizes to get the pressure pipe and carries differential pressure to differential pressure transmitter and calculate differential pressure, changes the differential pressure into the signal of telecommunication through differential pressure transmitter, conveys differential pressure signal to liquid level monitoring controller, is connected to the controller through signal cable, shows liquid level on the controller screen, also can convey differential pressure signal to the central control room simultaneously, shows on the computer, carries out real-time supervision to the liquid level, has fully solved the unclear problem of liquid level when loading and unloading on the spot.

Drawings

FIG. 1 is a schematic diagram of the whole structure of a liquid level monitoring and controlling device of a loading and unloading truck of the present utility model;

FIG. 2 is a schematic diagram showing the structure of the upper pressure tapping port of the liquid level monitoring and controlling device of the loading arm loading and unloading truck according to the present utility model;

FIG. 3 is a schematic diagram showing the structure of the lower pressure tapping port of the liquid level monitoring and controlling device for a loading arm loading and unloading truck according to the present utility model;

FIG. 4 is a schematic diagram of a front view of a liquid level monitoring and controlling device for a loading arm truck according to the present utility model;

fig. 5 is a schematic structural diagram of another installation mode of the upper pressure tapping duct and the lower pressure tapping duct of the liquid level monitoring and controlling device of the loading arm loading and unloading truck.

In the figure: 100. a sealing cap; 200. a vertical pipe; 210. a pressure taking port is arranged on the upper part; 220. an upper pressure port catheter; 230. a pressing opening is taken down; 240. a pressure port catheter is taken down; 250. a differential pressure transmitter; 260. a signal cable; 270. a pressure taking catheter; 300. an outer arm.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model. Furthermore, features defining "first", "second" may include one or more such features, either explicitly or implicitly. In the description of the present utility model, unless otherwise indicated, the meaning of "a plurality" is two or more.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

The utility model provides a liquid level monitoring and controlling device of a loading and unloading truck of a loading arm, which displays the liquid level on a screen of a controller, can transmit a pressure difference signal to a central control room, displays the liquid level on a computer, monitors the liquid level in real time, fully solves the problem of unclear liquid level when loading and unloading the loading and unloading truck on site, and referring to figures 1-5, comprises a sealing cap 100, a vertical pipe 200 and an outer arm 300;

referring again to fig. 1, the sealing cap 100 is used to mount the fixed riser 200 and the outer arm 300;

referring to fig. 1 again, the vertical tube 200 is fixedly connected to the middle position of the top of the sealing cap 100, and is used for forming an upper pressure taking port 210 and a lower pressure taking port 230, and the outer arm 300 is rotatably connected to the top of the outer side of the vertical tube 200;

referring to fig. 2 again, an upper pressure-taking port 210 is formed through the top of the outer side wall of the vertical tube 200, and an upper pressure-taking port conduit 220 is fixedly connected inside the upper pressure-taking port 210;

referring to fig. 3 again, a lower pressure tapping port 230 is formed through the bottom of the outer sidewall of the vertical tube 200, and a lower pressure tapping port conduit 240 is fixedly connected to the inside of the lower pressure tapping port 230;

referring to fig. 3 again, the outer side wall of the outer arm 300 is fixedly connected with a differential pressure transmitter 250, the bottom of the differential pressure transmitter 250 is fixedly connected with a signal cable 260, and the top of the differential pressure transmitter 250 is symmetrically and fixedly connected with a pressure-taking conduit 270.

Referring to fig. 3 and 5 again, the upper pressure tapping duct 220 and the lower pressure tapping duct 240 are located inside the vertical tube 200 and extend through and to the top of the vertical tube 200, and specifically, the upper pressure tapping duct 220 and the lower pressure tapping duct 240 can be installed inside or outside the vertical tube 200, which is convenient for installation.

Referring to fig. 2 again, the upper pressure tapping port 210 is located at the upper cavity of the tank truck at the lower end of the sealing cap 100, and the lower pressure tapping port 230 is located at the lower portion of the drop tube 200, so as to avoid the difference between the pressure in the cavity and the external pressure, and obtain the pressure difference between the bottom of the tank truck and the cavity above.

Referring to fig. 3 again, two pressure-taking conduits 270 are provided at the inlet end, and the inlet ends of the two pressure-taking conduits 270 are fixedly connected to the outlet ends of the upper pressure-taking port conduit 220 and the lower pressure-taking port conduit 240, respectively.

Referring again to fig. 1, the signal output end of the signal cable 260 is connected to the signal input end of the controller, so as to display the liquid level on the screen of the controller, and meanwhile, the differential pressure signal can be transmitted to the central control room and displayed on the computer.

Referring again to fig. 1, the input end of the differential pressure transmitter 250 is electrically connected to the output end of the external power source through a wire.

In summary, through the upper pressure taking pipe 210 and the lower pressure taking pipe 240 installed on the vertical pipe 200, the pressure of the upper cavity and the bottom of the tank truck liquid is collected, the pressure difference is transmitted to the differential pressure transmitter 250 by the pressure taking pipe 270 to calculate the pressure difference, the differential pressure transmitter 250 converts the pressure difference into an electric signal, the differential pressure signal is transmitted to the liquid level monitoring controller, the liquid level is displayed on the screen of the controller by the signal cable 260, and meanwhile, the differential pressure signal can be transmitted to the central control room and displayed on the computer, so that the liquid level is monitored in real time, and the problem of unclear liquid level during on-site loading and unloading is fully solved.

In a specific use, when loading, a person skilled in the art receives the pressure at the upper cavity and the bottom of the tank truck liquid through the upper pressure taking pipe 210 and the lower pressure taking pipe 240 which are arranged on the vertical pipe 200, utilizes the pressure taking pipe 270 to convey the pressure difference to the differential pressure transmitter 250 to calculate the pressure difference, converts the pressure difference into an electric signal through the differential pressure transmitter 250, transmits the differential pressure signal to the liquid level monitoring controller, is connected to the controller through the signal cable 260, displays the liquid level on the screen of the controller, can provide a high liquid level alarm, provides an alarm when the liquid level in the tank truck is monitored to be lower than a set value during unloading, cuts off the action of the pump, stops unloading, and provides an alarm when the liquid level in the tank truck is monitored to be higher than the set value during loading, cuts off the action of the pump and stops loading.

In the description of the present specification, reference to the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the present utility model have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the spirit and principles of the utility model, the scope of which is defined by the claims and their equivalents.

Claims

1. The liquid level monitoring and controlling device of the loading arm loading and unloading truck is characterized in that: including sealed cap (100), drop tube (200) and outer arm (300), drop tube (200) run through fixedly connected in sealed cap (100) top intermediate position department, outer arm (300) rotate connect in drop tube (200) outside top, drop tube (200) lateral wall top runs through and has seted up pressure taking mouth (210), pressure taking mouth (210) inside fixedly connected with is gone up pressure taking mouth pipe (220), drop tube (200) lateral wall bottom runs through and has been seted up pressure taking mouth (230), pressure taking mouth (230) inside fixedly connected with pressure taking mouth pipe (240) down, outer arm (300) lateral wall fixedly connected with differential pressure transmitter (250), differential pressure transmitter (250) bottom fixedly connected with signal cable (260), differential pressure transmitter (250) top symmetry fixedly connected with pressure taking mouth pipe (270).

2. The crane truck level monitoring and control device according to claim 1, wherein: the upper pressure tapping guide pipe (220) and the lower pressure tapping guide pipe (240) are positioned inside the vertical pipe (200) and penetrate through and extend to the top of the vertical pipe (200).

3. The crane truck level monitoring and control device according to claim 1, wherein: the upper pressure taking opening (210) is positioned at the upper cavity of the tank truck at the lower end of the sealing cap (100), and the lower pressure taking opening (230) is positioned at the lower part of the vertical pipe (200).

4. The crane truck level monitoring and control device according to claim 1, wherein: the inlet ends of the pressure taking guide pipes (270) are provided with two, and the inlet ends of the two pressure taking guide pipes (270) are fixedly connected with the outlet ends of the upper pressure taking guide pipe (220) and the lower pressure taking guide pipe (240) respectively.

5. The crane truck level monitoring and control device according to claim 1, wherein: the signal output end of the signal cable (260) is connected with the signal input end of the controller.

6. The crane truck level monitoring and control device according to claim 1, wherein: the input end of the differential pressure transmitter (250) is electrically connected with the output end of the external power supply through a lead.