CN213874479U - State monitoring system applied to small-sized liquid cargo tank and liquid fuel tank of ship - Google Patents
State monitoring system applied to small-sized liquid cargo tank and liquid fuel tank of ship Download PDFInfo
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- CN213874479U CN213874479U CN202120064548.8U CN202120064548U CN213874479U CN 213874479 U CN213874479 U CN 213874479U CN 202120064548 U CN202120064548 U CN 202120064548U CN 213874479 U CN213874479 U CN 213874479U
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Abstract
The utility model discloses a be applied to the state monitoring system in boats and ships small-size cargo tank and liquid fuel cabin, dual power supply conversion module is connected with main distribution board, charge and discharge board respectively, the storage tank level gauge one and storage tank level gauge two for measuring the storage tank liquid level, the pressure transmitter one for measuring the storage tank internal pressure and a plurality of temperature sensor for measuring the storage tank temperature of different height department all are connected with safety isolation fence module one, safety isolation fence module one is connected with analog quantity collection module, analog quantity collection module is connected with touch-sensitive screen and communication unit module; and the second pressure transmitter and the liquid level switch are both connected with a second safety isolation gate module, and the second safety isolation gate module is connected with a safety control system. The utility model discloses with storage tank monitoring data concentrate on local collection of storage tank, demonstration to adopt the communication transmission, the cable quantity that construction work volume and use that has so significantly reduced is applicable to the reliable of the small-size cargo tank of boats and ships, liquid fuel cabin, economic monitoring system.
Description
Technical Field
The utility model relates to a small-size cargo tank of boats and ships, liquid fuel tank state monitoring technology field especially relates to a be applied to state monitoring system in small-size cargo tank of boats and ships and liquid fuel tank.
Background
The cargo monitoring system applied to the large liquid cargo system at present has a complete monitoring and alarming function. However, most of the functions of the system are not suitable when the system is applied to a small-sized cargo tank and a liquefied gas fuel tank, which causes cost waste and various disadvantages in the aspects of construction, debugging and application. Most of small liquid cargo holds and liquefied gas fuel holds are directly connected to a monitoring alarm system or a fuel control system by using sensors, and then the monitoring alarm system or the fuel control system outputs the monitoring alarm system or the fuel control system to a field display instrument of a cargo hold operating platform for displaying. The problem with this approach is that there is no separate liquid cargo monitoring system causing system cross; the fact that the sensors are not directly associated with the display instrument increases the system fault point; and the arrangement of more cables increases the equipment and construction cost.
SUMMERY OF THE UTILITY MODEL
The utility model provides a solve above-mentioned problem, provide a be applied to the state monitoring system in small-size cargo tank of boats and ships and liquid fuel cabin.
In order to solve the technical problem, the technical scheme of the utility model is that: a state monitoring system applied to a small-sized cargo tank and a liquid fuel tank of a ship comprises a liquid cargo monitoring panel, wherein the liquid cargo monitoring panel is connected with a main control system and a monitoring alarm system, and the liquid cargo monitoring panel internally comprises a touch screen, a dual-power conversion module, a communication unit module, a PLC unit module, an analog quantity acquisition module, a digital quantity output module, a safety barrier module I and a safety barrier module II; the double-power-supply conversion module is respectively connected with the main distribution board and the charge and discharge board, a first storage tank liquid level meter and a second storage tank liquid level meter for measuring the liquid level of the storage tank, a first pressure transmitter for measuring the internal pressure of the storage tank and a plurality of temperature sensors for measuring the temperature of the storage tank at different heights are respectively connected with a first safety isolation grid module, the first safety isolation grid module is connected with the analog quantity acquisition module, and the analog quantity acquisition module is connected with the touch screen and the communication unit module; the pressure transmitter II and the liquid level switch are both connected with the safety isolation grid module II, and the safety isolation grid module II is connected with the safety control system; and the first pressure transmitter and the second pressure transmitter are both communicated with a sampling point of the pressure gauge.
Further, the temperature sensors comprise a first temperature sensor for measuring the temperature of the bottom of the storage tank, a second temperature sensor for measuring the temperature of the storage tank at the height of 50%, a third temperature sensor for measuring the temperature of the storage tank at the height of 85% and a fourth temperature sensor for measuring the temperature of the gas phase space at the top of the storage tank.
The utility model discloses with storage tank monitoring data concentrate on local collection of storage tank, demonstration to adopt the communication transmission, the cable quantity that construction work volume and use that has so significantly reduced is applicable to the reliable of the small-size cargo tank of boats and ships, liquid fuel cabin, economic monitoring system.
Drawings
Fig. 1 is a system topology diagram of the present invention.
Wherein: 1. liquid cargo monitoring panel, 2, the storage tank, 3, storage tank level gauge one, 4, storage tank level gauge two, 5, temperature sensor one, 6, temperature sensor two, 7, temperature sensor three, 8, temperature sensor four, 9, pressure transmitter one, 10, the manometer, 11, pressure transmitter two, 12, major control system, 13, monitoring alarm system, 14, main distribution board, 15, charge and discharge board, 16, the safety control system, 17, the touch-sensitive screen, 18, two power conversion module, 19, the communication unit module, 20, the PLC unit module, 21, analog quantity acquisition module, 22, digital output module, 23, safety isolation bars module one, 24, safety isolation bars module two, 25, liquid level switch.
Detailed Description
The following describes the present invention with reference to fig. 1.
A state monitoring system applied to a small-sized cargo tank and a liquid fuel tank of a ship comprises a liquid cargo monitoring panel 1, wherein an explosion-proof type is adopted, the liquid cargo monitoring panel 1 is connected with a main control system 12 and a monitoring alarm system 13, and the liquid cargo monitoring panel 1 internally comprises a touch screen 17, a dual-power conversion module 18, a communication unit module 19, a PLC unit module 20, an analog quantity acquisition module 21, a digital quantity output module 22, a safety barrier grid module I23 and a safety barrier grid module II 24; the dual-power conversion module 18 is respectively connected with the main distribution board 14 and the charge and discharge board 15, a first storage tank liquid level meter 3 and a second storage tank liquid level meter 4 for measuring the liquid level of the storage tank 2, a first pressure transmitter 9 for measuring the internal pressure of the storage tank 2 and a plurality of temperature sensors for measuring the temperature of the storage tank 2 at different heights are respectively connected with a first safety isolation barrier module 23, the first safety isolation barrier module 23 is connected with an analog quantity acquisition module 21, and the analog quantity acquisition module 21 is connected with the touch screen 17 and the communication unit module 19; the second pressure transmitter 11 and the liquid level switch 25 are both connected with a second safety isolation gate module 24, and the second safety isolation gate module 24 is connected with the safety control system 16; and the first pressure transmitter 9 and the second pressure transmitter 11 are both communicated with a sampling point of a pressure gauge 10.
The temperature sensors include temperature sensor one 5 for measuring the temperature at the bottom of tank 2, temperature sensor two 6 for measuring the temperature at 250% of the height of tank, temperature sensor three 7 for measuring the temperature at 285% of the height of tank, and temperature sensor four 8 for measuring the temperature in the vapor space at the top of tank 2.
The dual power conversion module 18 receives power provided by the main distribution board 14 and the charging and discharging board 15, one power supply is supplied by alternating current 220V from the main distribution board 14, and the other power supply is supplied by direct current 24V from the ship charging and discharging board 15. Two ways of power supplies are mutually hot and standby, and the power utilization safety of the monitoring system is guaranteed.
The first storage tank liquid level meter 3 and the second storage tank liquid level meter 4 measure the liquid level of the storage tank 2, are isolated by the first safety isolation gate module 23 and are collected by the analog quantity collection module 21. Wherein, the first storage tank liquid level meter 3 is used for displaying the liquid level of the storage tank 2, and the second storage tank liquid level meter 4 is used for alarming the high and low liquid levels of the storage tank 2. The temperature measured by the temperature sensor is isolated by the first safety isolation gate module 23 and is acquired by the analog quantity acquisition module 21. The first pressure transmitter 9 measures the pressure in the storage tank 2, is isolated by the first safety isolation gate module 23, is collected by the analog quantity collection module 21, and judges high pressure and low pressure to give an alarm. The liquid level, the temperature, the pressure signal and the alarm information are all displayed by the touch screen 17 for the field operators to check.
The information of the first storage tank liquid level meter 3, the second storage tank liquid level meter 4, the first temperature sensor 5, the second temperature sensor 6, the third temperature sensor 7 and the fourth temperature sensor 8 is communicated to a goods control system or a fuel control system through the communication unit module 19.
The second pressure transmitter 11 provides pressure display and high-pressure alarm of the storage tank 2, and the liquid level switch 25 provides overfilling alarm of the storage tank 2. The two groups of signals are directly transmitted to the safety control system 16 after being subjected to safety isolation through the second safety isolation gate module 24, and are not subjected to acquisition and conversion through the liquid cargo monitoring panel 1, so that the independence of safety control is guaranteed.
Install in 2 operation platform's of storage tank liquid goods monitoring panel 1 and gather 2 state information of storage tank, provide 2 state information's of storage tank local demonstration, adopt communication mode with 2 state information transmission of storage tank to goods accuse system or fuel control system.
The above description is only the specific implementation manner of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can substitute or change the technical solution of the present invention and the design of the present invention within the technical scope of the present invention.
Claims (2)
1. A state monitoring system applied to a small-sized cargo tank and a liquid fuel tank of a ship is characterized by comprising a liquid cargo monitoring panel (1), wherein the liquid cargo monitoring panel (1) is connected with a main control system (12) and a monitoring alarm system (13), and the liquid cargo monitoring panel (1) internally comprises a touch screen (17), a dual-power conversion module (18), a communication unit module (19), a PLC unit module (20), an analog quantity acquisition module (21), a digital quantity output module (22), a safety barrier grid module I (23) and a safety barrier grid module II (24); the dual-power conversion module (18) is respectively connected with the main distribution board (14) and the charge and discharge board (15), a first storage tank liquid level meter (3) and a second storage tank liquid level meter (4) for measuring the liquid level of the storage tank (2), a first pressure transmitter (9) for measuring the internal pressure of the storage tank (2) and a plurality of temperature sensors for measuring the temperatures of the storage tank (2) at different heights are respectively connected with a first safety isolation barrier module (23), the first safety isolation barrier module (23) is connected with the analog quantity acquisition module (21), and the analog quantity acquisition module (21) is connected with the touch screen (17) and the communication unit module (19); the second pressure transmitter (11) and the liquid level switch (25) are both connected with a second safety isolation gate module (24), and the second safety isolation gate module (24) is connected with a safety control system (16); and the first pressure transmitter (9) and the second pressure transmitter (11) are both communicated with a sampling point of a pressure gauge (10).
2. The condition monitoring system for the small cargo tank and the liquid fuel tank of the ship as claimed in claim 1, wherein the temperature sensors comprise a first temperature sensor (5) for measuring the temperature of the bottom of the storage tank (2), a second temperature sensor (6) for measuring the temperature of the storage tank (2) at the height of 50%, a third temperature sensor (7) for measuring the temperature of the storage tank (2) at the height of 85% and a fourth temperature sensor (8) for measuring the temperature of the gas phase space at the top of the storage tank (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120064548.8U CN213874479U (en) | 2021-01-11 | 2021-01-11 | State monitoring system applied to small-sized liquid cargo tank and liquid fuel tank of ship |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120064548.8U CN213874479U (en) | 2021-01-11 | 2021-01-11 | State monitoring system applied to small-sized liquid cargo tank and liquid fuel tank of ship |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213874479U true CN213874479U (en) | 2021-08-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120064548.8U Active CN213874479U (en) | 2021-01-11 | 2021-01-11 | State monitoring system applied to small-sized liquid cargo tank and liquid fuel tank of ship |
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| Country | Link |
|---|---|
| CN (1) | CN213874479U (en) |
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2021
- 2021-01-11 CN CN202120064548.8U patent/CN213874479U/en active Active
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