Marine heater control device

Abstract

The present application relates to a kind of marine heater control device.The control device includes temperature sensor on heater, controller processing temperature sensor output signal and controlling heater operating power and for changing the execution element of heavy oil distribution around heater;The execution element includes the base plate connected with the non-working end of heater, driving motor is provided on the base plate, two screw shafts parallel with the length direction of heater are provided on the base plate, and a first drive mechanism for driving screw shaft rotation is provided between the two screw shafts and driving motor;The present application separates the heavy oil around heater from heater, and brings the heavy oil already in high temperature state to the far place of heater, so that the low temperature heavy oil near heater can be filled to the surface of heater, so that the heating of heavy oil is more uniform, and the problem of deterioration of part of heavy oil in continuous heating process is avoided.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of heater, and particularly relates to a marine heater control device. BACKGROUND

[0002] The fuel for large ships is heavy oil, which needs to be purified by desalination, dehydration and pollution removal before use. The heavy oil must be heated before purification to raise the oil temperature to a certain range to improve the purification effect.

[0003] However, heavy oil has the characteristics of high viscosity and poor flowability. When the heavy oil is heated, the temperature of the heavy oil near the heater rises, and the heavy oil in other places is difficult to reach the vicinity of the heater, resulting in uneven heating of the heavy oil. The heavy oil near the heater is prone to deterioration after long-time heating. SUMMARY

[0004] The purpose of the present application is to provide a marine heater control device to solve the problems in the background art.

[0005] The present application achieves the above-mentioned purpose by the following technical scheme:

[0006] A marine heater control device, comprising a temperature sensor arranged on the heater, a controller for processing the output signal of the temperature sensor and controlling the operating power of the heater, and an execution element for changing the distribution of heavy oil around the heater;

[0007] The execution element comprises a base plate connected to the non-working end of the heater, the base plate is provided with a driving motor, the base plate is provided with two screw shafts parallel to the length direction of the heater, a first driving mechanism for driving the rotation of the screw shafts is arranged between the two screw shafts and the driving motor, the two screw shafts are each provided with a sliding block threadedly connected thereto, and a scraper for moving the heavy oil on the surface of the heater is arranged between the two sliding blocks.

[0008] Preferably, the base plate is provided with two or more conveying rollers arranged along the circumference of the heater for carrying heavy oil away from the heater, the conveying roller comprises a rotating shaft and a spiral blade belonging to the rotating shaft, and the screw shaft drives the rotation of the conveying roller through a second driving mechanism.

[0009] Preferably, the first driving mechanism comprises a first pulley arranged on the two screw shafts and a second pulley arranged on the output shaft of the driving motor, and a first synchronous belt is arranged between the first pulley and the second pulley.

[0010] Preferably, the second driving mechanism comprises a first flywheel and a second flywheel arranged on the screw shaft, and a second synchronous belt is arranged between the first flywheel, the second flywheel and the two or more conveying rollers.

[0011] Preferably, the first flywheel and the second flywheel rotate in opposite directions.

[0012] Preferably, the scraper is divided into two half-scraper blades, and a bracket is provided between the two half-scraper blades and the two sliders. The half-scraper blades are rotatably connected to the corresponding brackets. When the two half-scraper blades are away from the substrate, they form an annular scraper blade. When the two half-scraper blades are close to the substrate, they separate from each other.

[0013] Preferably, a cleaning plate for cleaning the half-scraper is provided between the two lead screw shafts.

[0014] Preferably, the substrate is provided with two or more levers for driving the half-scraper to rotate.

[0015] The beneficial effects of this invention are as follows:

[0016] This invention separates the heavy oil around the heater from the heater and carries the already high-temperature heavy oil to a distance from the heater, allowing the low-temperature heavy oil near the heater to fill the heater surface. This makes the heating of the heavy oil more uniform and avoids the problem of some heavy oil deteriorating during continuous heating. Attached Figure Description

[0017] Fig. 1 This is a schematic diagram of the overall structure of the present invention;

[0018] Fig. 2 This is a bottom view of the present invention;

[0019] Fig. 3 This is a schematic diagram showing the top-view relationship between the half-scraper and the slider in this invention.

[0020] In the diagram: 1. Base plate; 2. Drive motor; 3. Lead screw shaft; 4. Slider; 5. Rotary shaft; 6. Spiral blade; 7. No. 1 synchronous belt; 8. Half scraper; 9. Support; 10. Cleaning plate; 11. Lever; a. Heater. Detailed Implementation

[0021] The present application will now be described in further detail. It should be noted that the following specific embodiments are only used to further illustrate the present application and should not be construed as limiting the scope of protection of the present application. Those skilled in the art can make some non-essential improvements and adjustments to the present application based on the above application content.

[0022] Example 1

[0023] like Figs. 1-3 As shown, a marine heater control device includes a temperature sensor mounted on heater a, a controller that processes the output signal of the temperature sensor and controls the operating power of heater a, and an actuator for changing the distribution of heavy oil around heater a.

[0024] The execution element comprises a base plate 1 connected with the non-working end of the heater a, the base plate 1 is provided with a driving motor 2, two screw shafts 3 parallel with the length direction of the heater a are arranged on the base plate 1, a first driving mechanism for driving the rotation of the screw shafts 3 is arranged between the screw shafts 3 and the driving motor 2, the screw shafts 3 are provided with sliding blocks 4 threadedly connected therewith, and a scraper for moving the heavy oil on the surface of the heater a is arranged between the sliding blocks 4.

[0025] As a further scheme of the present application, the first driving mechanism comprises a first belt pulley arranged on the two screw shafts 3 and a second belt pulley arranged on the output shaft of the driving motor 2, and a first synchronous belt 7 is arranged between the first belt pulley and the second belt pulley.

[0026] In the above embodiment, the heater a generates temperature during operation and heats the heavy oil in contact with the heater a. When the temperature sensor on the heater a detects that the temperature on the surface of the heater a is relatively high, a signal is transmitted to the controller, and the controller starts the execution element to control the heater a.

[0027] Firstly, the power of the heater a is reduced under the control of the controller, i.e. the heater a temporarily stops heating the heavy oil or the heating temperature is reduced. Then, the controller controls the driving motor 2 to start, and the driving motor 2 drives the rotation of the two screw shafts 3 through the first driving mechanism, so that the sliding blocks 4 on the screw shafts 3 move along the axial direction of the screw shafts 3. When the two sliding blocks 4 move, the scraper moves along the length direction of the heater a, so that the heavy oil with a temperature too high on the surface of the heater a is removed, and the heavy oil with a relatively low temperature around the heater a fills the gap on the surface of the heater a. After the scraper moves to the farthest stroke, the driving motor 2 drives the scraper to move back to the initial position. Finally, the controller controls the heater a to restore the previous heating power to heat the heavy oil.

[0028] As a further scheme of the present application, two or more conveying rollers for removing the heavy oil from the heater a are arranged on the base plate 1 along the circumferential direction of the heater a, the conveying rollers comprise rotating shafts 5 and spiral blades 6 arranged on the rotating shafts 5, and the screw shafts 3 drive the rotation of the conveying rollers through a second driving mechanism.

[0029] As a further scheme of the present application, the second driving mechanism comprises a first flywheel and a second flywheel arranged on the screw shafts 3, and a second synchronous belt is arranged between the first flywheel, the second flywheel and the two or more conveying rollers.

[0030] As a further scheme of the present application, the rotation directions of the first flywheel and the second flywheel are opposite.

[0031] In the above embodiment, when the scraper moves back, part of the heavy oil can be brought back, causing the high-temperature heavy oil to be repeatedly heated, affecting the heating efficiency of the heavy oil. When the lead screw shaft 3 rotates, the conveying roller is driven to rotate by the second driving motor 2, causing the spiral blade 6 to rotate. When the spiral blade 6 rotates, the heavy oil is conveyed away from the base plate 1, thereby avoiding the situation that the high-temperature heavy oil is heated again in the heating range of the heater a.

[0032] Among them, the first flywheel and the second flywheel are ratchet structures that can only rotate in one direction (similar to the flywheel of a bicycle), and the rotation directions of the first flywheel and the second flywheel are opposite, so that the lead screw shaft 3 can drive one of the first flywheel and the second flywheel to rotate during forward rotation and reverse rotation, so that the conveying roller can always rotate and the direction of rotation is always the same, that is, the spiral blade 6 conveys the heavy oil away from the base plate 1.

[0033] As a further scheme of the present application, the scraper is divided into two half scrapers 8, and a support 9 is further arranged between the two half scrapers 8 and the two sliding blocks 4. The half scraper 8 is rotationally connected with the corresponding support 9, and the two half scrapers 8 form a ring-shaped scraper when moving away from the base plate 1, and the two half scrapers 8 separate from each other when moving close to the base plate 1.

[0034] In the above embodiment, the two half scrapers 8 are limited by the sliding blocks 4 and the supports 9 during movement away from the base plate 1, and the two half scrapers 8 maintain a complete ring-shaped structure, which can clean the heavy oil on the surface of the heater a. When the half scraper 8 moves back to its farthest stroke, the sliding block 4 no longer resists the half scraper 8, and the half scraper 8 rotates under the resistance and blocking action of the heavy oil, so that the half scraper 8 rotates by 90°. At this time, the resistance of the heavy oil to the movement of the half scraper 8 is greatly reduced, not only making it easy for the driving motor 2 to move the half scraper 8 to the initial position, but also reducing the amount of heavy oil brought back by the half scraper 8.

[0035] As a further scheme of the present application, a cleaning plate 10 is arranged between the two lead screw shafts 3 for cleaning the half scraper 8.

[0036] As a further scheme of the present application, the base plate 1 is provided with two or more lever rods 11 for driving the half scraper 8 to rotate.

[0037] In the above embodiment, the half scraper 8 contacts the surface of the cleaning plate 10 after rotating, and the half scraper 8 moves relative to the surface of the cleaning plate 10, so that the high-temperature heavy oil adhering to the surface of the half scraper 8 is scraped off and conveyed away from the heater a by the spiral blade 6.

[0038] When the half scraper 8 moves to the direction close to the base plate 1 and contacts the lever 11, the lever 11 drives the half scraper 8 to rotate to its initial position, i.e. the two half scrapers 8 form a complete ring, so that the half scraper 8 can re-perform the heavy oil scraping work.

[0039] The above embodiments only express several embodiments of the present application, the description is more specific and detailed, but it cannot be understood as the limitation of the patent scope of the present application. It should be pointed out that for ordinary skilled in the art, without departing from the concept of the present application, several modifications and improvements can be made, which belong to the protection scope of the present application.

Claims

1. A marine heater control device, characterized by: The execution element comprises a base plate (1) connected with the non-working end of the heater, the base plate (1) is provided with a driving motor (2), two screw shafts (3) parallel to the length direction of the heater are arranged on the base plate (1), a first driving mechanism for driving the rotation of the screw shafts (3) is arranged between the driving motor (2) and the screw shafts (3), the screw shafts (3) are provided with sliding blocks (4) threadedly connected therewith, and a scraper (4) for moving the heavy oil on the surface of the heater is arranged between the sliding blocks (4). The base plate (1) is provided with two or more conveying rollers arranged along the circumference of the heater for conveying the heavy oil away from the heater, the conveying roller comprises a rotating shaft (5) and a spiral blade (6) arranged on the rotating shaft (5), and the screw shafts (3) drive the rotation of the conveying roller through a second driving mechanism. The second driving mechanism comprises a first flywheel and a second flywheel arranged on the screw shafts (3), a second synchronous belt is arranged between the first flywheel, the second flywheel and the two or more conveying rollers. The rotating directions of the first flywheel and the second flywheel are opposite. The scraper is divided into two half scrapers (8), a support (9) is further arranged between the two half scrapers (8) and the two sliding blocks (4), the half scrapers (8) are rotatably connected with the corresponding supports (9), the two half scrapers (8) form a ring-shaped scraper when moving away from the base plate (1), and the two half scrapers (8) are separated from each other when moving close to the base plate (1). The first driving mechanism comprises a first pulley arranged on the two screw shafts (3) and a second pulley arranged on the output shaft of the driving motor (2), and a first synchronous belt (7) is arranged between the first pulley and the second pulley.

2. A marine heater control device according to claim 1, characterised in that: A cleaning plate (10) for cleaning the half scrapers (8) is arranged between the two screw shafts (3).

3. A marine heater control device according to claim 1, characterised in that: The base plate (1) is provided with two or more lever rods (11) for driving the rotation of the half scrapers (8).

4. A marine heater control device according to claim 3, characterised in that: ​

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