Overflow monitoring equipment

Abstract

This invention provides a filling overflow monitoring device, which is assembled in a tank and mainly includes an air inlet module, a first pressure transmission module, a second pressure transmission module, a pressure detection module, and a control module. The pressure detection module is provided with a first pressure detection tube and a second pressure detection tube. One end of the air inlet module provides blowing gas, and the other end is connected to the first pressure transmission module and the second pressure transmission module. The first pressure transmission module transmits the blowing gas to the first pressure detection tube at the other end for discharge, and the second pressure transmission module transmits the blowing gas to the second pressure detection tube at the other end for discharge. The control module monitors and prevents hazards from occurring during the filling operation based on the values ​​returned by the electrically connected pressure detection module.

Description

[Technical Field]

[0001] This invention relates to a monitoring device, and more particularly to a filling overflow monitoring device used in tank trucks or oil tankers to prevent overflow and pipe bursts during filling. [Previous Technology]

[0002] With the booming development of industries such as petrochemicals and electronics, the tanker truck transportation business used to transport petrochemical products or the tanker truck transportation business used to transport liquefied gases has naturally increased. Consequently, the filling business of tanker trucks or tankers has also increased exponentially. Therefore, it is particularly important to avoid operational errors that could lead to industrial accidents when carrying out tanker truck or tanker truck filling operations.

[0003] However, the most common operational errors during the filling of tank trucks or tankers are overflow or pipe bursts. Overflow is caused by improper human operation or metering control failure, which causes the actual filling volume to exceed the set filling volume. If the operator does not pay attention during the filling process, overflow can easily occur. Pipe bursts are caused by forgetting to open the return pipe or having a blockage when the tank truck or tanker is used for filling operations. Therefore, when the liquid is filled into the tank truck or tanker, the liquid level rises and squeezes the gas in the internal space, causing the pressure in the tank to rise. The oil pipe used for filling operations will bulge like a balloon, resulting in a pipe burst.

[0004] Therefore, in order to improve the above-mentioned shortcomings, technicians mostly focus on improving a single problem. For example, they may install a level switch to prevent overflow or a pressure switch at the return pipe to prevent pipe bursting. However, this may seem to solve the problem, but it is not. Therefore, it is necessary to provide a solution that is explosion-proof and reduces unnecessary hazards in the filling operation through pressure detection, and improves the above-mentioned shortcomings. [Summary of the Invention]

[0005] The purpose of this invention is to provide a filling overflow prevention monitoring device for oil filling trucks or tank trucks to reduce unnecessary hazards by monitoring changes in their pressure values ​​during filling operations.

[0006] To achieve the above objectives, the present invention provides a filling overflow monitoring device, which mainly includes an air inlet module, a first pressure transmission module, a second pressure transmission module, a pressure detection module, a control module, and a housing. The air inlet module includes an adjustment unit, an air inlet, and an air outlet. The adjustment unit has the air inlet at one end and the air outlet at the other end, and is used to adjust the gas flow rate from the air inlet to the air outlet. The first pressure transmission module is connected to the air outlet at one end and outputs gas. The first pressure transmission module outputs a first flow rate value; one end of the second pressure transmission module is connected to the air outlet and outputs a second flow rate value; the pressure detection module includes a first pressure detection tube, a second pressure detection tube, a cover, a first connecting tube, a second connecting tube, and a differential pressure detection unit. The first pressure detection tube and the second pressure detection tube are respectively assembled on the cover, and one end of the first pressure detection tube is connected to the first connecting tube and then to the other end of the first pressure transmission module, and the other end is provided with a first detection port, while the second pressure detection... One end of the measuring tube is connected to the second connecting tube and then to the other end of the second pressure transmission module. The other end is provided with a second detection port. The differential pressure detection unit is connected to the first connecting tube at one end and to the second connecting tube at the other end. The differential pressure detection unit detects the pressure difference between the first and second connecting tubes and outputs a differential pressure value. The control module includes a processing unit, a display unit, and an alarm unit. The processing unit is electrically connected to the first pressure transmission module, the second pressure transmission module, and the differential pressure detection unit. The unit, the display unit, and the warning unit display the first flow rate value, the second flow rate value, and the differential pressure value on the display unit. When the differential pressure value exceeds a warning value, the warning unit is controlled to generate a warning signal. The housing system includes the air intake module, the first pressure transmission module, the second pressure transmission module, the differential pressure detection unit, the control module, and an exhaust valve, wherein the exhaust valve is used to release the gas inside the housing. The first pressure detection tube and the second pressure detection tube have different lengths.

[0007] Further, the first pressure transmission module includes a first transmission unit, a first flow detection unit and a first flow stabilization unit. One end of the first transmission unit is connected to the gas outlet and the other end is connected to the first flow stabilization unit. One end of the first flow detection unit is connected to the first transmission unit and the other end is connected to the first flow stabilization unit. The first flow detection unit is also electrically connected to the processing unit. In this way, the first flow detection unit detects the gas flow rate from the first transmission unit through the first flow stabilization unit and outputs the first flow rate value and transmits it to the processing unit.

[0008] Further, the second pressure transmission module includes a second transmission unit, a second flow detection unit and a second flow stabilization unit. One end of the second transmission unit is connected to the gas outlet and the other end is connected to the second flow stabilization unit. One end of the second flow detection unit is connected to the second transmission unit and the other end is connected to the second flow stabilization unit. The second flow detection unit is also electrically connected to the processing unit. In this way, the second flow detection unit detects the gas flow rate from the second transmission unit through the second flow stabilization unit and outputs the second flow rate value and transmits it to the processing unit.

[0009] Further, the cover is provided with a first through hole and an adjacent second through hole. The first through hole group is provided with the first pressure detection tube, and the second through hole group is provided with the second pressure detection tube. There is a first distance between the first detection port and the cover, and a second distance between the second detection port and the cover. The second distance is less than the first distance and greater than zero.

[0010] Furthermore, a first needle valve unit is provided between the first pressure detection tube and the first flow stabilizing unit, and the first needle valve unit is assembled in the housing.

[0011] Furthermore, a second needle valve unit is provided between the second pressure detection tube and the second flow stabilizing unit, and the second needle valve unit is assembled in the housing.

[0012] Further, a tank pressure detection unit is provided between the second needle valve unit and the connected differential pressure detection unit. The tank pressure detection unit detects the internal pressure of the tank to obtain a tank pressure value. The tank pressure detection unit transmits the tank pressure value to the electrically connected processing unit, and the processing unit displays the tank pressure value on the display unit.

[0013] Furthermore, the processing unit is electrically connected to a filling system. When the processing unit receives the differential pressure value exceeding the warning value, the processing unit transmits a warning signal to stop the filling system from filling.

[0014] Furthermore, the air intake of the air intake module provides nitrogen gas, and the nitrogen gas is discharged from the first detection port and the second detection port respectively after passing through the air outlet.

[0015] The filling overflow monitoring device of the present invention mainly involves inserting the first pressure detection tube and the second pressure detection tube into the tank body from the top of the tank truck or tanker truck, and inputting nitrogen gas from the air inlet of the air inlet module for quantitative nitrogen blowing, so that the nitrogen gas overflows into the tank body through the first detection port of the first pressure detection tube and the second detection port of the second pressure detection tube, respectively. The first detection port and the second detection port are located at different distances from the bottom of the tank body. Therefore, when the liquid in the filling operation rises to the first detection port, which is closer to the bottom of the tank body, the liquid at the first detection port creates resistance to the blowing nitrogen gas, causing the first... The pressure of the pressure sensing tube and the second pressure sensing tube are different. Therefore, the differential pressure sensing unit will obtain the differential pressure value. Thus, by displaying the first flow rate value returned by the first flow rate sensing unit, the second flow rate value returned by the second flow rate sensing unit, and the differential pressure value returned by the differential pressure sensing unit on the display unit of the control module, the occurrence of dangerous events such as overflow or pipe burst can be monitored and prevented. Therefore, the filling overflow prevention monitoring device of the present invention can not only be used for tanks of different types of oil tankers or tank trucks, but also can prevent dangerous situations such as pipe burst caused by excessive pressure by real-time monitoring of the tank pressure.

Implementation Method

[0016] Several preferred embodiments of the technical features and operation methods of this application are described below with reference to the accompanying drawings for examination. Furthermore, the drawings in this invention are not necessarily drawn to actual scale for ease of explanation, and the scale in the drawings is not intended to limit the scope of protection sought by this invention.

[0017] Regarding the technology of this invention, please refer to Figures 1 to 4. This invention provides a filling overflow monitoring device 100, which mainly includes an air intake module 10, a first pressure transmission module 20, a second pressure transmission module 30, a pressure detection module 40, a control module 50, and a housing 60, wherein:

[0018] The air intake module 10 includes an adjustment unit 11, an air inlet 12 and an air outlet 13. The adjustment unit 11 has the air inlet 12 at one end and the air outlet 13 at the other end, and is used to adjust the gas flow rate from the air inlet 12 to the air outlet 13. In this embodiment, the air inlet 12 of the air intake module 10 provides nitrogen (N2) or ordinary air input. The detection is performed by quantitative control of the blowing trend through the input of nitrogen (N2) or ordinary air, but it is not limited to this.

[0019] The first pressure transmission module 20 is connected to the air outlet 13 at one end and outputs a first flow rate value M1. The first pressure transmission module 20 includes a first transmission unit 21, a first flow rate detection unit 22 and a first flow stabilization unit 23. One end of the first transmission unit 21 is connected to the air outlet 13 and the other end is connected to the first flow stabilization unit 23. One end of the first flow rate detection unit 22 is connected to the first transmission unit 21 and the other end is connected to the first flow stabilization unit 23. Thus, the first flow rate detection unit 22 detects the gas flow rate from the first transmission unit 21 through the first flow stabilization unit 23 and outputs the first flow rate value M1.

[0020] The second pressure transmission module 30 is connected to the air outlet 13 at one end and outputs a second flow rate value M2. The second pressure transmission module 30 includes a second transmission unit 31, a second flow rate detection unit 32 and a second flow stabilization unit 33. One end of the second transmission unit 31 is connected to the air outlet 13 and the other end is connected to the second flow stabilization unit 33. One end of the second flow rate detection unit 32 is connected to the second transmission unit 31 and the other end is connected to the second flow stabilization unit 33. Thus, the second flow rate detection unit 32 detects the gas flow rate from the second transmission unit 31 through the second flow stabilization unit 33 and outputs the second flow rate value M2.

[0021] The pressure detection module 40 includes a first pressure detection tube 41, a second pressure detection tube 42, a differential pressure detection unit 43, a cover 44, a first connecting tube 48, and a second connecting tube 49. The first pressure detection tube 41 and the second pressure detection tube 42 are respectively assembled on the cover 44, and the cover 44 is assembled on a tank 200, so that the first pressure detection tube 41 and the second pressure detection tube 42 are housed inside the tank 200, and one end of the first pressure detection tube 41 is connected to the first differential pressure detection unit 43. A connecting pipe 48 is connected to the other end of the first pressure transmission module 20, and the other end is provided with a first detection port 411. A first needle valve unit 45 is provided between the first pressure detection pipe 41 and the first flow stabilizing unit 23. One end of the second pressure detection pipe 42 is connected to the other end of the second pressure transmission module 30 via the second connecting pipe 49, and the other end is provided with a second detection port 421. A second needle valve unit 46 is provided between the second pressure detection pipe 42 and the second flow stabilizing unit 33. The differential pressure detection unit... One end of unit 43 is connected to the first connecting pipe 48, and the other end is connected to the second connecting pipe 49. The differential pressure detection unit 43 detects the pressure difference between the first connecting pipe 48 and the second connecting pipe 49 and outputs a differential pressure value M3. Furthermore, a groove pressure detection unit 47 is provided between the second needle valve unit 46 and the second connecting pipe 49 connected to the differential pressure detection unit 43. The groove pressure detection unit 47 detects the internal pressure of the tank 200 and obtains a groove pressure value M4. The cover 44 is assembled on the top of the periphery of the tank 200, and the cover... 44 is provided with a first through hole 441 and an adjacent second through hole 442. The first through hole 441 is provided with the first pressure detection tube 41, and the second through hole 442 is provided with the second pressure detection tube 42. Nitrogen gas N2 enters from the air inlet 12, exits through the air outlet 13, and then exits from the first detection port 411 and the second detection port 421 respectively. A first distance D1 is provided between the first detection port 411 and the cover 44, and a second distance D2 is provided between the second detection port 421 and the cover 44.

[0022] The control module 50 includes a processing unit 51, a display unit 52, and an alarm unit 53. The processing unit 51 is electrically connected to the first flow detection unit 22 of the first pressure transmission module 20, the second flow detection unit 32 of the second pressure transmission module 30, the differential pressure detection unit 43, the display unit 52, the alarm unit 53, and the tank pressure detection unit 47. The processing unit 51 displays the received first flow value M1, second flow value M2, differential pressure value M3, and tank pressure value M4 on the display unit 52. When the differential pressure value M3 exceeds a warning value, the alarm unit 53 is controlled to generate an alarm signal.

[0023] The housing 60 is equipped with the air intake module 10, the first pressure transmission module 20, the second pressure transmission module 30, the differential pressure detection unit 43 and the control module 50. The housing 60 is equipped with an exhaust valve 70 to release the gas inside the housing 60.

[0024] Wherein, the lengths of the first pressure detection tube 41 and the second pressure detection tube 42 are different from each other, and the second distance D2 is less than the first distance D1 and greater than zero, so that when the first detection port 411 and the second detection port 421 are housed in the tank 200, the distances between the first detection port 411, the second detection port 421 and the bottom of the tank 200 are different;

[0025] The processing unit 51 is electrically connected to a filling system 300. When the processing unit 51 receives the pressure difference value M3 exceeding the warning value, the processing unit 51 transmits a warning signal to stop the filling system 300 from filling.

[0026] Please refer to Figures 1 to 3. When the tanker truck or tanker car's tank 200 is to be filled through the filling system 300, the filling overflow monitoring device 100 places the housing 60, which contains the processing unit 51, the display unit 52, and the warning unit 53, in an appropriate position, and electrically connects the filling system 300 to the control module 50. Thus, when the filling overflow monitoring device 100 detects an abnormality during the filling operation, in addition to generating a warning signal through the warning unit 53, the control module 50 can also control the electrically connected filling system 300. 0. Stop the filling operation; Furthermore, before the filling operation, the cover 44 is first installed on the top of the tank 200, so that the first pressure detection tube 41 and the second pressure detection tube 42 are inserted and fixed from the top of the tank 200. On the one hand, the cover 44 covers the top opening of the tank 200, and on the other hand, the first pressure detection tube 41 and the second pressure detection tube 42 are located in different positions inside the tank 200, thereby creating a pressure difference between the first pressure detection tube 41 and the second pressure detection tube 42. In this embodiment, the first detection port of the first pressure detection tube 41... The first detection port 411 is closer to the bottom of the tank 200, while the second detection port 421 of the second pressure detection tube 42 is farther from the bottom of the tank 200. In other words, the first distance D1 between the first detection port 411 and the cover 44 is greater than the second distance D2 between the second detection port 421 and the cover 44. Furthermore, the first needle valve unit 45 and the second needle valve unit 46, respectively, located at the box 60, are connected via the first connecting pipe 48 and the second connecting pipe 49. Therefore, when a user blows nitrogen (N2) or ordinary air into the air inlet 12 of the air inlet module 10... Nitrogen (N2) or ordinary air will flow out from the outlet 13 from the first detection port 411 of the first pressure detection tube 41 and the second detection port 421 of the second pressure detection tube 42, respectively. The user can view the first flow rate value M1 and the second flow rate value M2 through the display unit 52 to see if they are the set flow rates. The flow rate and flow rate of nitrogen (N2) and ordinary air can be adjusted through the first transmission unit 21, the second transmission unit 31, the first needle valve unit 45 and the second needle valve unit 46. This embodiment mainly uses nitrogen (N2), but it is not limited to this.

[0027] Secondly, when the filling operation begins, the liquid injected into the tank 200 by the filling system 300 will gradually rise, and the pressure difference between the first detection port 411 of the first pressure detection tube 41 and the second detection port 421 of the second pressure detection tube 42 will also increase. The pressure difference detection unit 43 will continuously transmit the pressure difference value M3 back to the processing unit 51. The processing unit 51 compares whether the pressure difference value M3 exceeds the set warning value, and displays the first flow value M1, the second flow value M2, the pressure difference value M3 and the tank pressure value M4 on the display unit 52. If the pressure difference value M3 exceeds the warning value, the processing unit 51 controls the warning unit 53 to generate a warning signal and controls the filling system 300 to stop the filling operation.

[0028] Furthermore, when the tanker truck or tanker is filling, if the reflux valve fails to open, the first detection port 411 of the first pressure detection tube 41 and the second detection port 421 of the second pressure detection tube 42 inserted into the tank body 200 by the filling overflow monitoring device 100 are located at different positions, that is, at different distances from the cover 44 or the bottom of the tank body 200. Therefore, when the reflux valve fails to open and the pressure inside the tank body 200 increases due to the rise in liquid level, the tank pressure detection unit 47 of the second pressure detection tube 42 will send back the tank pressure value M4 to the processing unit 51. The processing unit 51 processes and judges the tank pressure value M4. If it exceeds the set warning value, it will control the warning unit 53 to generate a warning signal and control the filling system 300 to stop the filling operation.

[0029] In summary, the filling overflow monitoring device 100 of the present invention mainly involves inserting the first pressure detection tube 41 and the second pressure detection tube 42 into the tank body 200 from the top of the tank truck or tanker truck, and inputting nitrogen N2 from the air inlet 12 of the air inlet module 10 for quantitative nitrogen N2 or general air blowing, so that nitrogen N2 overflows into the tank body 200 through the first detection port 411 of the first pressure detection tube 41 and the second detection port 421 of the second pressure detection tube 42, respectively. The first detection port 411 and the second detection port 421 are located at different distances from the bottom of the tank body 200, thereby generating an appropriate pressure difference. Therefore, when the liquid in the filling operation rises to the first detection port 411, which is closer to the bottom of the tank body 200, the first detection port 411... The liquid creates resistance to the blowing nitrogen N2, causing a pressure difference between the first pressure detection tube 41 and the second pressure detection tube 42. Therefore, the differential pressure detection unit 43 obtains the differential pressure value M3. Thus, by displaying the first flow rate value M1 returned by the first flow rate detection unit 22, the second flow rate value M2 returned by the second flow rate detection unit 32, and the differential pressure value M3 returned by the differential pressure detection unit 43 on the display unit 52 of the control module 50, the occurrence of hazardous events such as overflow or pipe burst can be monitored and prevented. Therefore, the filling overflow prevention monitoring device 100 of the present invention can not only be used for tanks 200 of different types of oil tankers or tank trucks, but also prevent high-risk situations such as pipe burst caused by excessive pressure through real-time pressure monitoring of the tank 200. [Simplified Explanation of the Diagram]

[0030] Figure 1: A three-dimensional schematic diagram of the filling overflow monitoring device of the present invention. Figure 2: A schematic diagram of the connecting blocks of the filling overflow monitoring device of the present invention. Figure 3: A schematic diagram of the filling overflow monitoring device of the present invention in preparation for filling. Figure 4: A schematic diagram of the filling overflow monitoring device of the present invention in the process of filling.

Claims

1. A filling overflow monitoring device, mainly comprising: an air inlet module, including an adjustment unit, an air inlet and an air outlet, wherein the adjustment unit has the air inlet at one end and the air outlet at the other end, and is used to adjust the gas flow rate from the air inlet to the air outlet; a first pressure transmission module, one end of which is connected to the air outlet and outputs a first flow rate value; and a second pressure transmission module, one end of which is connected to the air outlet and outputs a second flow rate value. A pressure detection module includes a first pressure detection tube, a second pressure detection tube, a cover, a first connecting tube, a second connecting tube, and a differential pressure detection unit. The first pressure detection tube and the second pressure detection tube are respectively assembled on the cover. One end of the first pressure detection tube is connected to the first connecting tube and then to the other end of the first pressure transmission module, and the other end is provided with a first detection port. One end of the second pressure detection tube is connected to the second connecting tube and then to the other end of the second pressure transmission module, and the other end is provided with a second detection port. The differential pressure detection unit is connected at one end to the first connecting pipe and at the other end to the second connecting pipe. It detects the pressure difference between the first and second connecting pipes and outputs a differential pressure value. A control module includes a processing unit, a display unit, and an alarm unit. The processing unit is electrically connected to the first pressure transmission module, the second pressure transmission module, the differential pressure detection unit, the display unit, and the alarm unit, displaying the first flow rate value, the second flow rate value, and the differential pressure value on the display unit. When the differential pressure value exceeds a warning value, the alarm unit is controlled to generate an alarm signal. A housing is also included, comprising the air intake module, the first pressure transmission module, the second pressure transmission module, the differential pressure detection unit, the control module, and an exhaust valve. The exhaust valve is used to release gas from the housing. The first and second pressure detection pipes have different lengths.

2. The filling overflow monitoring device as described in claim 1, further comprising a first pressure transmission module including a first transmission unit, a first flow detection unit and a first flow stabilizing unit, wherein one end of the first transmission unit is connected to the gas outlet and the other end is connected to the first flow stabilizing unit, and one end of the first flow detection unit is connected to the first transmission unit and the other end is connected to the first flow stabilizing unit, and the first flow detection unit is electrically connected to the processing unit, thereby the first flow detection unit detects the gas flow rate flowing from the first transmission unit through the first flow stabilizing unit and outputs the first flow rate value and transmits it to the processing unit.

3. The filling overflow monitoring device as described in claim 1, further comprising a second pressure transmission module including a second transmission unit, a second flow detection unit and a second flow stabilizing unit, wherein one end of the second transmission unit is connected to the gas outlet and the other end is connected to the second flow stabilizing unit, and one end of the second flow detection unit is connected to the second transmission unit and the other end is connected to the second flow stabilizing unit, and the second flow detection unit is electrically connected to the processing unit, thereby the second flow detection unit detects the gas flow rate flowing from the second transmission unit through the second flow stabilizing unit and outputs the second flow rate value and transmits it to the processing unit.

4. The overflow monitoring device as described in claim 1, further comprising a first through hole and an adjacent second through hole, wherein the first through hole group houses the first pressure detection tube, and the second through hole group houses the second pressure detection tube, wherein... The first detection port is provided with a first distance from the cover, and the second detection port is provided with a second distance from the cover. The second distance is less than the first distance and greater than zero.

5. The filling overflow monitoring equipment as described in claim 2, further comprising a first needle valve unit between the first pressure detection tube and the first flow stabilizing unit, the first needle valve unit being assembled in the housing.

6. The filling overflow monitoring device as described in claim 3, further comprising a second needle valve unit between the second pressure detection tube and the second flow stabilizing unit, the second needle valve unit being assembled in the housing.

7. The filling overflow monitoring device as described in claim 6, further comprising a tank pressure detection unit between the second needle valve unit and the connected differential pressure detection unit, the tank pressure detection unit detecting the internal pressure of the tank to obtain a tank pressure value, the tank pressure detection unit transmitting the tank pressure value to the electrically connected processing unit, and the processing unit displaying the tank pressure value on the display unit.

8. The filling overflow monitoring device as described in claim 1, further comprising an electrical connection of the processing unit to a filling system, wherein when the processing unit receives the differential pressure value exceeding the warning value, the processing unit transmits a warning signal to stop the filling operation of the filling system.

9. The filling overflow monitoring device as described in claim 1, further wherein the air inlet of the air inlet module provides nitrogen gas, and the nitrogen gas is discharged from the first detection port and the second detection port respectively after passing through the air outlet.

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