Measuring and heating system integrated cargo hold

Abstract

The invention discloses a measuring and heating system integrated cargo hold which comprises a cargo hold measuring part which comprises a liquid level measuring part and a high-position alarming part, the liquid level measuring part is arranged on a cargo oil hatch cover of the cargo hold and measures the liquid level height of asphalt injected into the cargo hold, and the high-position alarming part is arranged on the cargo oil hatch cover and measures the liquid level height of asphalt injected into the cargo hold. The alarm module is used for sending an alarm signal when a cargo hold is filled with asphalt with preset capacity and automatically closing an asphalt filling pump in time; the asphalt heating piece is used for heating asphalt in the cargo hold and improving the fluidity of the asphalt; and the cabin body cleaning part is arranged on the cargo oil cabin cover and used for performing high-pressure cleaning on the inner wall of the cargo cabin after unloading is completed. According to the method, the integrity of the whole cargo hold is effectively guaranteed, and the safety risk possibly caused by opening of the cargo hold and the cargo tank is reduced; the high-pressure water is prevented from carrying asphalt to impact and adhere to the radar detector, the radar detector is prevented from being damaged, the measurement reliability and accuracy are reduced, and the maintenance cost is increased.

Description

Technical Field

[0001] This invention relates to the field of shipbuilding technology, and more specifically, to a cargo hold with an integrated measurement and heating system. Background Technology

[0002] Ocean transport of asphalt is generally in liquid form, meaning that specialized asphalt transport vessels are used to transport large quantities of liquid asphalt. To ensure smooth asphalt transfer operations, after loading, the asphalt in the asphalt tanks must be continuously heated and kept at a certain temperature to maintain its flowability. The amount of asphalt added to the cargo holds needs to be measured in real time during loading to meet the ship's loading requirements. However, existing measuring devices are easily obstructed by high-pressure water jets and asphalt splatter during tank cleaning, affecting the reliability and accuracy of the detectors and increasing daily maintenance costs. Furthermore, the existing layout of the measuring and heating systems in the cargo holds of asphalt vessels is not optimal, increasing the tank opening size, reducing tank integrity, increasing tank safety risks, and reducing the accuracy and timeliness of asphalt loading measurement. Additionally, the existing heating systems do not heat the asphalt evenly, which can reduce its flowability during transport. Summary of the Invention

[0003] To overcome the above-mentioned shortcomings, the present invention provides an integrated cargo hold for measurement and heating systems, specifically employing the following technical solution: An integrated measurement and heating system for a cargo hold, comprising: A cargo hold measuring device is installed on the cargo hold of a ship. The cargo hold measuring device includes a liquid level measuring device and a high-level alarm device. The liquid level measuring device is on the cargo oil tank cover of the cargo hold and measures the height of the asphalt liquid level being added into the cargo hold. The high-level alarm device is on the cargo oil tank cover and is used to issue an alarm signal when a predetermined volume of asphalt is added into the cargo hold, and to automatically shut down the asphalt filling pump in a timely manner. An asphalt heating element is installed inside the cargo hold to heat the asphalt inside the cargo hold and improve the fluidity of the asphalt. A hull cleaning unit, which is installed on the cargo oil tank cover, is used for high-pressure cleaning of the inner wall of the cargo tank after unloading.

[0004] Preferably, the liquid level measuring device includes a radar detector and a radar protection device. The radar detector is on the cargo oil tank cover to detect the height of the asphalt liquid level in the cargo tank, and the radar protection device is on the cargo oil tank cover to protect the radar detector.

[0005] Preferably, the radar protection component includes a radar protection shell and a radar protection opening and closing component. After the radar protection shell is fitted over the end of the radar detector, the small end of the radar protection shell is disposed on the inner wall of the cargo oil tank cover, and the radar protection opening and closing component is used on the cargo oil tank cover to close and seal the large end of the radar protection shell.

[0006] Preferably, the radar protection opening and closing component includes a protection opening and closing power component, a protection opening and closing cover component, and a cover storage component. The protection opening and closing power component and the cover storage component are both disposed on the cargo oil tank cover, and the protection opening and closing cover component is disposed on the protection opening and closing power component. The protection opening and closing power component includes a motor and a transmission pipe. The motor is disposed on the cargo oil tank cover, and one end of the transmission pipe rotatably passes through the cargo oil tank cover and is fixedly connected to the rotating shaft of the motor.

[0007] Preferably, the protective opening and closing cover includes a pull-up cover and an anti-impact stabilizing component. The pull-up cover is disposed on the transmission tube, and the anti-impact stabilizing component is disposed on the pull-up cover to improve the firmness of the pull-up cover when it is closed on the radar protective shell.

[0008] Preferably, the pull-up cover includes a drive shaft, a magnetic coil, and a cover plate. One end of the drive shaft is axially slidably and circumferentially locked and embedded in the other end of the drive tube. The magnetic coil is embedded in a spiral groove on the inner wall of the drive tube. One end of the cover plate is disposed on the other end face of the drive shaft and moves to seal and cover the large end port of the radar protective shell.

[0009] Preferably, the high-level alarm device includes a high-high-level alarm, which is installed on the cargo oil tank cover. The high-high-level alarm is used to transmit an alarm signal to the control room when 95% of the asphalt is added to the cargo tank. When 98% of the asphalt is added to the cargo tank, the high-high-level alarm sends an alarm signal to the control room and automatically shuts down the asphalt filling pump.

[0010] Preferably, the asphalt heating element includes a heating element and an asphalt temperature detection element. The heating element heats the asphalt inside the cargo hold, and the asphalt temperature detection element is used to detect the asphalt temperature in real time.

[0011] Preferably, the asphalt temperature detection element includes a temperature sensor disposed on the cargo oil tank cover and extending into the cargo tank for measuring the asphalt temperature. Preferably, the hull cleaning component includes a tank washing machine and an oil-water interface meter. Both the tank washing machine and the oil-water interface meter are installed on the cargo oil tank cover. The end of the tank washing machine passes through the cargo oil tank cover and extends into the cargo tank to perform high-pressure washing of the asphalt in the cargo tank. The oil-water interface meter passes through the cargo oil tank cover and measures the oil content in the water remaining at the bottom of the cargo tank after high-pressure washing.

[0012] The present invention has at least the following beneficial effects: 1) The integrated measurement and heating system of this invention integrates the cargo hold measurement components and the cargo hold cleaning components on the cargo oil tank cover. It can be accessed and reached to the bottom of the cargo hold through the door and inclined ladder on the cargo oil tank cover, which effectively ensures the integrity of the overall cargo hold and reduces the safety risks (mainly damage stability) that may be caused by the openings of the cargo hold and cargo tank. 2) The integrated measurement and heating system of this invention is equipped with a radar protection component in the cargo hold. The radar protection component can protect the radar detector before the high-pressure washing of the hull cleaning component, preventing high-pressure water carrying asphalt from impacting and adhering to the radar detector, causing damage to the radar detector, reducing the reliability and accuracy of measurement and increasing maintenance costs.

[0013] Other advantages, objectives and features of the present invention will become apparent in part from the following description, and in part from those skilled in the art through study and practice of the invention. Attached Figure Description

[0014] Figure 1 This is a front view of the integrated cargo hold for the measurement and heating system of the present invention; Figure 2 This is a front view of the first cross-section along the transverse direction of the cargo hold of the integrated measurement and heating system of the present invention. Figure 3 This is a schematic diagram of the integrated cargo hold structure of the measurement and heating system of the present invention; Figure 4 This is a three-dimensional structural diagram of the integrated measurement and heating system of the present invention along the first transverse section of the ship in the cargo hold. Figure 5 This is a front view of the second cross section along the transverse direction of the ship for the integrated measurement and heating system of the present invention in the cargo hold. Figure 6 This is a front view of the integrated measurement and heating system of the present invention along the longitudinal section of the ship in the cargo hold. Figure 7 This is a front view of the cargo hold measuring component in the integrated measurement and heating system of the present invention. Figure 8 This is a top view of the cargo hold measuring component in the integrated measurement and heating system of the present invention. Figure 9This is a three-dimensional structural diagram of the cargo hold measuring component in the integrated measurement and heating system of the present invention. Figure 10 This is a bottom-view three-dimensional structural diagram of the cargo hold measuring component in the integrated measurement and heating system of the present invention.

[0015] Among them: 1-ship, 2-cargo hold, 3-cargo oil tank cover, 4-radar detector, 5-observation mirror, 6-radar protective shell, 7-motor, 8-transmission pipe, 9-transmission shaft, 10-cover plate, 11-stabilizing pipe, 12-storage support frame, 13-storage slot, 14-stabilizing storage slot hole, 15-high-high-high-level alarm, 16-heating support frame, 17-heating pipe, 18-temperature sensor, 19-tank washing machine, 20-measuring hole, 21-door, 22-portable boom, 23-straight ladder, 24-inclined ladder, 25-inert gas pipe, 26-radar wave beam. Detailed Implementation

[0016] The technical solution of the present invention will be described in detail below with reference to the accompanying drawings and by way of embodiments. It should be noted that the description of these embodiments is for the purpose of helping to understand the present invention, but does not constitute a limitation of the present invention.

[0017] In this article, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can mean: A exists alone, B exists alone, and A and B exist simultaneously. The term " / and" in this article describes another type of relationship between related objects, indicating that two relationships can exist. For example, A / and B can mean: A exists alone, and A and B exist alone. In addition, the character " / " in this article generally indicates that the related objects before and after it are in an "or" relationship.

[0018] according to Figures 1-10 As shown, an integrated measurement and heating system for a cargo hold includes a cargo hold measuring component, an asphalt heating component, and a hull cleaning component, all of which are installed on the cargo hold of a ship. The cargo hold measuring component includes a liquid level measuring component and a high-level alarm component, both of which are installed on the cargo oil tank cover of the cargo hold.

[0019] It should be noted that, in order to ensure sufficient structural strength, the cargo oil tank cover is arranged between two strong structures. The strong structures are made in the form of an inverted T-shaped arrangement, with a 680mm space between the T-shaped arrangement and the tank body. Elastic supports of the strong structure type are set between the tank body and the structure to offset the displacement and deformation caused by the high temperature expansion of the tank body.

[0020] The liquid level measuring device includes a radar detector and a radar protection device, both of which are mounted on the cargo oil tank cover. The radar detector includes a radar sensor mounted on the cargo oil tank cover to detect the asphalt level in the cargo tank. Furthermore, the end of the radar sensor extends through the cargo oil tank cover into the cargo tank. It should be noted that the radar wave beam emitted by the radar detector covers an 8-degree angle; since the radar needs to be flipped during maintenance, the area of ​​the tank cover on the flipped side cannot accommodate other equipment, but an observation mirror can be placed there.

[0021] The radar protection components include a radar protective housing and a radar protective opening / closing device, both of which are mounted on the cargo oil tank cover. The radar protective housing is flared, with its smaller end fitted over the end of the radar detector and fixed to the inner wall of the cargo oil tank cover, and the axis of the radar protective housing coincides with the axis of the radar detector. Furthermore, the angle of the radar protective housing is not less than 8 degrees. It should be noted that no pipes or supports are allowed to obstruct the conical light wave (8-degree apex angle) of the radar detector. Based on the tank height calculation, the radius of the projected surface at the bottom of the cargo tank reaches 1250 mm; other equipment should be arranged to avoid this area as much as possible, therefore, it should be placed as far as possible on the center left side of the cargo oil tank cover.

[0022] The radar protection opening and closing mechanism includes a protection opening and closing power component, a protection opening and closing cover component, and a cover closing and storage component. Both the protection opening and closing power component and the cover closing and storage component are mounted on the cargo oil tank cover, and the protection opening and closing cover component is mounted on the protection opening and closing power component. The protection opening and closing power component includes a motor and a transmission pipe. The motor is mounted on the cargo oil tank cover, and one end of the transmission pipe rotatably passes through the cargo oil tank cover and is fixedly connected to the motor's shaft, providing power to the protection opening and closing cover component.

[0023] The protective opening and closing cover assembly includes a pull-up cover assembly and an impact-resistant stabilizing component. The pull-up cover assembly is mounted on the protective opening and closing power component, and the impact-resistant stabilizing component is mounted on the pull-up cover assembly. The pull-up cover assembly includes a drive shaft, a magnetic coil, and a cover plate. The drive shaft and the magnetic coil are both disposed within the drive tube, and the cover plate is disposed on the other end of the drive shaft.

[0024] One end of the drive shaft is axially sliding and circumferentially locked into the other end of the drive tube. Further, a sliding groove on the inner wall of the drive shaft fits onto a sliding block on the inner wall of the drive tube. The end of the sliding groove is not through-hole to one end face of the drive shaft, allowing the sliding groove and the sliding block to provide axial positioning. The magnetic coil is fixedly embedded in a spiral groove on the inner wall of the drive tube, and the axial position of the magnetic coil corresponds to the position of the drive shaft. One end of the cover plate is horizontally fixed on the other end face of the drive shaft and moves accordingly to seal the large end port of the radar protective housing. Alternatively, a rubber pad is provided on the top surface of the cover plate to improve the sealing performance of the cover plate when it is closed at the large end port of the radar protective housing.

[0025] The shock-resistant stabilizer includes a stabilizer tube and a stabilizer shaft. The stabilizer tube is mounted on the radar protective housing, and the stabilizer shaft is mounted on the cover plate. The sidewall of the stabilizer tube is fixed to the large-end sidewall of the radar protective housing, and the axis of the stabilizer tube is parallel to the axis of the radar protective housing. The diameter of the stabilizer shaft is not greater than the inner diameter of the stabilizer tube. One end of the stabilizer shaft is vertically fixed to the other end of the cover plate, and the axis of the stabilizer shaft is parallel to the axis of the radar protective housing. The other end of the stabilizer shaft is conical to facilitate insertion into the stabilizer tube. When the liquid level measuring device is subjected to high-pressure flushing by the chamber cleaning device, the shock-resistant stabilizer can improve the sealing stability of the pull-up cover plate when it is sealed to the radar protective housing, prevent asphalt from splashing onto the radar detector and causing damage, improve measurement reliability and accuracy, and reduce maintenance costs.

[0026] The cover and storage component includes a storage support frame and a storage groove. The storage support frame is disposed on the inner side of the cargo oil tank cover, and the storage groove is disposed on the storage support frame for accommodating the cover plate in its open state. The top end of the storage support frame is vertically fixed to the inner side of the cargo oil tank cover. The storage groove is rectangular in shape, with the inner wall width greater than the thickness of the cover plate and the groove depth greater than the lengths of both ends of the cover plate. One side of the groove opening is horizontally fixed to the bottom surface of the storage support frame for accommodating the cover plate. A stabilizing storage groove hole is provided on the other side of the groove opening. The stabilizing storage groove hole is arc-shaped and is slidably embedded by the stabilizing shaft.

[0027] The method of using the radar protection opening and closing component is as follows: Before the high-pressure flushing of the hull cleaning components, the motor rotates 180 degrees forward, driving the cover plate to slide horizontally out of the receiving slot to directly below the radar protective shell via the transmission tube and the transmission shaft. Then, DC current is passed into the magnetic coil to generate a magnetic field, which pulls the transmission shaft to slide upward within the transmission tube. The upward sliding transmission shaft drives the cover plate to horizontally seal and fasten onto the large end port of the radar protective shell. At the same time, the other end of the stabilizing shaft is inserted into the stabilizing tube to prevent high-pressure water carrying asphalt from splashing onto the radar detector, thereby improving detection accuracy and reliability and reducing maintenance costs.

[0028] After cleaning is completed, the DC power supply to the magnetic coil is stopped, the cover plate is lowered to a predetermined height, the motor is started to rotate 180 degrees in the opposite direction, thereby driving the other end of the cover plate to rotate horizontally and be embedded in the storage groove, and the stabilizing shaft is slidably embedded in the stabilizing storage hole.

[0029] The high-level alarm device includes a high-level alarm, which is installed on the cargo oil tank cover. The high-level alarm transmits the asphalt level signal to the control room, which controls the filling of the cargo tank with asphalt. The high-level alarm is electrically connected to the asphalt filling pump. When the high-level alarm measures that the asphalt level in the cargo tank has reached 95%, it sends an alarm signal to the control room. Simultaneously, when the high-level alarm measures that the asphalt level in the cargo tank has reached 98%, it controls the asphalt filling pump to stop. It should be noted that since the radar base height is 500mm + the height on the main deck of the cargo oil tank cover is 750mm + the height of the double deck (1600mm) + the height of 95% of the tank capacity (distance from the top of the tank is 585mm) = 3435mm, and considering that it is too long and lateral support needs to be made in the cargo hold, it must be arranged as close as possible to the perimeter of the hatch cover.

[0030] The asphalt heating element includes a heating element, an asphalt temperature detection element, and a cargo hold insulation element, all of which are installed inside the cargo hold. The heating element includes a heating support frame and a heating pipe; the heating support frame is installed inside the cargo hold, and the heating pipe is mounted on the heating support frame.

[0031] The heating support frame is pyramidal in shape and located directly below the radar detector. The hollow area of ​​the heating support frame does not obstruct the radar beam of the detector. Simultaneously, the heating support frame provides support for the high-level alarm and the asphalt temperature detection device. Furthermore, the height of the heating support frame is approximately half the height of the cargo hold. The heating pipe is fixed to the outside of the heating support frame by pipe clamps, and the heating pipe is vertically wound in a serpentine pattern along the heating support frame. This is more conducive to fully utilizing the gravity of the high-temperature liquid inside the pipe to accelerate heat transfer. It should be noted that the heating pipe is also S-shaped distributed on the bottom surface of the cargo hold, further improving heating efficiency. For the cargo holds of asphalt tankers, since the cargo is asphalt with high viscosity and poor thermal conductivity, heating coils are needed in the cargo holds to ensure that the temperature of the cargo is above 255 degrees Celsius, ensuring the overall fluidity of the asphalt.

[0032] The asphalt temperature detection device includes a temperature sensor mounted on the cargo oil tank cover and extending into the cargo tank for measuring the asphalt temperature. The temperature actuator is a three-point temperature sensor used to measure the asphalt temperature at 80%, 40%, and 3.5% of the tank volume (500mm from the bottom). It should be noted that the protective tube for the temperature sensor should also be arranged around the tank cover to facilitate lateral support for the protective tube inside the cargo tank, and also to facilitate cable routing for wiring and maintenance.

[0033] The cargo hold insulation includes thermal insulation material, which fills the space between the outer surface of the cargo tank and the outer structure. Furthermore, the outer structure is a double-deck structure; the outer surface of the cargo tank and the inner surface of the structure are covered with 138mm (50mm + 50mm + 38mm) of thermal insulation material, and the insulating surface is covered with 1mm aluminum foil or galvanized steel sheet. This ensures that in environments with air temperatures below -10℃ and water temperatures of 0℃, the cargo hold temperature does not drop by more than 2℃ within 24 hours.

[0034] The tank cleaning system includes a tank washing machine and an oil-water interface meter, both of which are mounted on the cargo oil tank cover. The end of the tank washing machine extends through the cargo oil tank cover into the cargo tank to perform high-pressure washing of the asphalt inside the cargo tank. The oil-water interface meter is detachably connected to the cargo oil tank cover. Furthermore, the oil-water interface meter measures the water remaining at the bottom of the cargo tank after high-pressure washing through a measuring hole on the cargo oil tank cover to measure the thickness of the oil level in the water, thereby providing a basis for deciding on the water treatment method after washing.

[0035] The cargo oil tank cover is also equipped with an inert gas pipe, a access door, and a portable boom. Personnel can quickly pass through the access door and enter the cargo hold area via a straight and inclined ladder. The height of the straight ladder and the intermediate transfer platform is approximately 3000 mm above the top of the tower-shaped heating pipe to avoid the high-heat zone as much as possible. The inclined ladder adopts a corner double-layer design, and considering the comfort of personnel going up and down the ladder, the angle of the inclined ladder is designed to be 50 degrees. This design can effectively avoid the heating pipe and place the corner platform on the strong structure of the hold side to improve the structural strength and stability of the inclined ladder. The portable boom is located on the right side of the cargo oil tank cover access door for easy hoisting of injured personnel or handling of valve accessories that need to be inspected and repaired.

[0036] Although embodiments of the present invention have been disclosed above, they are not limited to the applications listed in the specification and embodiments. They can be applied to various fields suitable for the present invention. For those skilled in the art, other modifications can be easily made. Therefore, without departing from the general concept defined by the claims and their equivalents, the present invention is not limited to the specific details and illustrations shown and described herein.

Claims

1. An integrated cargo hold for measuring and heating, characterized in that, The application relates to a ship cargo tank measuring device. The ship cargo tank measuring device comprises a liquid level measuring device and a high-level alarm device, the liquid level measuring device is arranged on a cargo oil tank cover of a cargo tank, measures the liquid level of bitumen filled into the cargo tank, and the high-level alarm device is arranged on the cargo oil tank cover and used for sending an alarm signal when a predetermined volume of the bitumen is filled into the cargo tank and automatically closing a bitumen filling pump in time. The ship cargo tank measuring device further comprises a bitumen heating device arranged in the cargo tank and used for heating the bitumen in the cargo tank to improve the flowability of the bitumen. The ship cargo tank measuring device further comprises a tank cleaning device arranged on the cargo oil tank cover and used for high-pressure cleaning the inner wall of the cargo tank after unloading.

2. The integrated cargo hold of claim 1, wherein, The liquid level measuring device comprises a radar detector and a radar protection device, the radar detector is arranged on the cargo oil tank cover and used for detecting the liquid level of the bitumen in the cargo tank, and the radar protection device is arranged on the cargo oil tank cover and used for protecting the radar detector.

3. The integrated cargo hold of claim 2, wherein, The radar protection device comprises a radar protection shell and a radar protection opening and closing device, the radar protection shell is sleeved on the end portion of the radar detector, the small head of the radar protection shell is arranged on the inner wall of the cargo oil tank cover, and the radar protection opening and closing device is arranged on the cargo oil tank cover and used for covering and sealing the large head of the radar protection shell.

4. The integrated cargo hold of claim 3, wherein, The radar protection opening and closing device comprises a protection opening and closing power device, a protection opening and closing cover closing device and a cover closing storage device, the protection opening and closing power device and the cover closing storage device are arranged on the cargo oil tank cover, and the protection opening and closing cover closing device is arranged on the protection opening and closing power device.

5. The integrated cargo hold of claim 4, wherein, The protection opening and closing power device comprises a motor and a transmission pipe, the motor is arranged on the cargo oil tank cover, and one end of the transmission pipe is rotatably penetrated through the cargo oil tank cover and fixedly connected to the rotating shaft of the motor.

6. The integrated cargo hold of claim 5, wherein, The protection opening and closing cover closing device comprises a lifting cover closing device and an anti-impact stabilizing device, the lifting cover closing device is arranged on the transmission pipe, and the anti-impact stabilizing device is arranged on the lifting cover closing device to improve the sealing firmness of the lifting cover closing device on the radar protection shell.

7. The integrated cargo hold of measuring and heating system according to any of claims 1-5, characterized in that, The lifting cover closing device comprises a transmission shaft, a magnetic coil and a cover closing plate, one end of the transmission shaft is axially slidably and circumferentially locked and embedded in the other end of the transmission pipe, the magnetic coil is embedded in a spiral groove on the inner wall of the transmission pipe, and one end of the cover closing plate is arranged on the other end surface of the transmission shaft and moves along with the transmission shaft to seal and close the large head end of the radar protection shell.

8. The integrated measurement and heating system cargo hold of any of claims 1-6, wherein, The high-level alarm device comprises a high-level high-level alarm device, the high-level high-level alarm device is arranged on the cargo oil tank cover, used for transmitting an alarm signal to a control room when 95% of the bitumen is filled into the cargo tank, and used for transmitting an alarm signal to the control room and automatically closing the bitumen filling pump when 98% of the bitumen is filled into the cargo tank. The bitumen heating device comprises a heating device and a bitumen temperature detecting device, the heating device is arranged in the cargo tank and used for heating the bitumen, and the bitumen temperature detecting device is used for detecting the temperature of the bitumen in real time.

9. The integrated cargo hold of claim 8, wherein, The asphalt temperature detecting member comprises a temperature sensor arranged on the cargo oil tank cover and extending into the cargo tank for measuring the asphalt temperature.

10. The integrated cargo hold of claim 8, wherein, The tank body cleaning member comprises a tank cleaning machine and an oil-water interface instrument, both arranged on the cargo oil tank cover, the tank cleaning machine extending into the cargo tank after the end thereof passes through the cargo oil tank cover to perform high-pressure flushing on the asphalt in the cargo tank, and the oil-water interface instrument measuring the oil content in the water remaining at the bottom of the cargo tank after high-pressure flushing.

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