CN213443064U - Frequency conversion fan for ventilation system of ship engine room - Google Patents
Frequency conversion fan for ventilation system of ship engine room Download PDFInfo
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- CN213443064U CN213443064U CN202021377444.4U CN202021377444U CN213443064U CN 213443064 U CN213443064 U CN 213443064U CN 202021377444 U CN202021377444 U CN 202021377444U CN 213443064 U CN213443064 U CN 213443064U
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Abstract
The utility model discloses a frequency conversion fan for ventilation system of marine engine room comprises four major parts of cabin fan, converter, remote control panel and sensor, the cabin fan is connected with the converter through the cable, the external emergent stop control module of converter and fan power input module, the converter is connected with the remote control panel through the cable, the external control power input module of remote control panel, the converter is connected with the sensor through the cable, the sensor is connected to the outer atmosphere of cabin through copper tubing. The utility model discloses increased parts such as converter, differential pressure sensor, temperature sensor than traditional cabin fan, the converter is acceptable to come from the differential pressure sensor signal and control the frequency of fan according to the procedure of setting for thereby the rotational speed of fan increases or reduces and reaches the purpose that the amount of wind increases or reduces, and when the cabin in temperature surpassed and set for the highest temperature, the fan can the automatic adjustment to full speed operation.
Description
Technical Field
The utility model relates to an cabin frequency conversion fan field especially relates to a frequency conversion fan for ventilation system of boats and ships cabin.
Background
The ventilation system of the ship engine room is generally matched with an axial flow fan directly driven by a motor, the air volume is selected according to the maximum ventilation volume required by full-load operation of all mechanical equipment under the design working condition, and the motor is generally a single-speed and fixed-frequency motor. However, in the process of ship operation, many environmental working conditions are not designed working conditions; and the equipment in the cabin is not always operated under full load. And at the moment, the motor is limited to be a single-speed and fixed-frequency motor, so that the cabin fan can only run at full speed and full load. This would lead to the following problems:
1. energy waste is caused, and originally, the cabin ventilation does not need to be operated at full speed, but the full-load operation is forced because the rotating speed of the motor cannot be adjusted.
2. The air pressure in the cabin is too high, and a series of problems that the cabin is difficult to close and the precision of a precision instrument in the cabin generates errors are further caused.
3. The air volume in the cabin is too large, so that eddy current is easily generated, and some small sensors are damaged; and moreover, discomfort is easily brought to people, so in order to solve the problems, a variable frequency fan for a ship cabin ventilation system is provided.
SUMMERY OF THE UTILITY MODEL
The utility model provides a pair of frequency conversion fan for marine engine room ventilation system has solved the problem that proposes in the above-mentioned background art, provides a novel cabin frequency conversion fan, can carry out automatic control to the rotational speed of fan according to the amount of wind demand under the different work condition to reach and satisfy equipment ventilation requirement and can not waste the energy.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides a frequency conversion fan for ventilation system of marine engine room, comprises four major parts of cabin fan, converter, remote control panel and sensor, the cabin fan is connected with the converter through the cable, the external emergent control module and the fan power input module of stopping of converter, the converter is connected with the remote control panel through the cable, the external control power input module of remote control panel, the converter is connected with the sensor through the cable, the sensor is connected to the atmosphere outside the cabin through copper tubing.
Preferably, the cable that the converter is connected with the cabin fan is 3x25, and the converter is equipped with emergency switch button, can stop the cabin fan during emergency.
Preferably, the cable connecting the remote control panel and the frequency converter is 7x1.5, and the remote control panel can be arranged at a cabin door, a driving console, a centralized control room and the like according to different types of ships.
Preferably, the sensor comprises a differential pressure sensor and a temperature sensor, the differential pressure sensor and the temperature sensor are arranged in the engine room, and a 3x1.5 cable is used for connecting a signal into the frequency converter and simultaneously using
The copper tube connects the differential pressure sensor with the atmosphere outside the cabin.
Preferably, the cabin fan, the frequency converter, the remote control panel and the sensor are electrically connected.
The utility model has the advantages that:
1. the rotation speed is automatically adjusted according to different working conditions, so that the device is very environment-friendly and energy-saving;
2. the whole set of system has high automation degree, does not need human intervention, is suitable for various ship types, and can also meet the complicated DP working condition;
3. the positive pressure in the cabin is stably maintained at a set value, and the environmental comfort level in the cabin is high; and is also beneficial to protecting precise instruments.
To sum up, the utility model discloses increased parts such as converter, differential pressure sensor, temperature sensor than traditional cabin fan, the converter can accept to come from the differential pressure sensor signal and control the frequency of fan according to the procedure of setting for thereby the rotational speed of fan increases or reduces and reaches the purpose that the amount of wind increases or reduces, and when the cabin internal temperature exceeded and sets for the highest temperature (generally establish to 45 degrees centigrade), the fan can the full speed operation of automatic adjustment.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Reference numbers in the figures: 1. a cabin fan; 2. a frequency converter; 3. a remote control panel; 4. a sensor.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.
Referring to fig. 1, a frequency conversion fan for a ship cabin ventilation system is composed of four parts, namely a cabin fan 1, a frequency converter 2, a remote control panel 3 and a sensor 4, wherein the cabin fan 1 is connected with the frequency converter 2 through a cable, the frequency converter 2 is externally connected with an emergency stop control module and a fan power supply input module, the frequency converter 2 is connected with the remote control panel 3 through a cable, the remote control panel 3 is externally connected with a control power supply input module, the frequency converter 2 is connected with the sensor 4 through a cable, and the sensor 4 is connected to the atmosphere outside a cabin through a copper tube.
The cable connecting the frequency converter 2 and the cabin fan 1 is 3x25, an emergency switch button is arranged on the frequency converter 2, and the cabin fan can be stopped in emergency; the cable connecting the remote control panel 3 and the frequency converter 2 is 7x1.5, and the remote control panel 3 can be arranged at the doorway of an engine room, a driving console, a centralized control room and the like according to different types of ships; the sensor 4 comprises a differential pressure sensor and a temperature sensor which are arranged in the engine room, and a 3x1.5 cable is used for connecting a signal into the frequency converter 2 and simultaneously used
The copper tube communicates the differential pressure sensor with the atmosphere outside the engine room; the cabin fan 1, the frequency converter 2, the remote control panel 3 and the sensor 4 are electrically connected.
The working principle is as follows: the operation logic of the cabin variable frequency fan is that the rotating speed of the cabin fan 1 can be automatically adjusted according to different working conditions in the cabin, the speed of rotation will be related to two input parameters, the temperature signal at the TS input and the differential pressure signal at the PT input, during normal operation, the rotational speed of the nacelle blower 1 is varied in accordance with the variation of the pressure difference, for example setting that the nacelle needs to maintain a positive pressure of 50pa, i.e. the pressure difference between the inside and the outside of the nacelle, when the pressure difference between the inside and the outside of the nacelle is lower than 50pa, the pressure difference sensor 4PT transmits a signal to the frequency converter 2, the frequency converter 2 accelerates the cabin fan 1 according to a pre-programmed program, and when the pressure difference reaches 50pa, the rotation speed of the cabin fan 1 will be stabilized at the rotation speed, and conversely, if the pressure difference between the inside and the outside of the cabin is greater than 50pa, the frequency converter 2 will also reduce the speed of the fan to the pressure difference of 50pa to avoid the energy waste caused by keeping the high rotation speed all the time. Meanwhile, the cabin also has a temperature requirement, and the function is realized through the temperature sensor 4, for example, the temperature of the cabin is set to be 45 ℃, when the temperature of the cabin exceeds 45 ℃, the temperature sensor 4TS transmits a signal to the frequency converter 2, the fan can accelerate according to a command pre-programmed by the frequency converter 2, so that the ventilation quantity of the cabin is increased to take away heat, and when the temperature of the cabin is reduced to 45 ℃, the pressure difference sensor 4 can automatically take over the control right of the rotating speed of the fan, so that the positive pressure of the cabin, namely the air quantity consumed by the machine, is ensured.
The above, only be the concrete implementation 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 is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (5)
1. The utility model provides a frequency conversion fan for marine engine room ventilation system, comprises four major parts of cabin fan (1), converter (2), remote control panel (3) and sensor (4), its characterized in that, cabin fan (1) is connected with converter (2) through the cable, the external emergent control module and the fan power input module of stopping of converter (2), converter (2) are connected with remote control panel (3) through the cable, remote control panel (3) external control power input module, converter (2) are connected with sensor (4) through the cable, sensor (4) are connected to the outside atmosphere of cabin through copper tubing.
2. The variable frequency fan for the marine engine room ventilation system as claimed in claim 1, wherein the cable connecting the frequency converter (2) and the engine room fan (1) is 3x25, and the frequency converter (2) is provided with an emergency switch button for stopping the engine room fan in case of emergency.
3. The variable frequency fan for the cabin ventilation system of the ship according to claim 1, wherein the cable connecting the remote control panel (3) and the frequency converter (2) is 7x1.5, and the remote control panel (3) can be installed at a cabin door, a driving console, a centralized control room and the like according to different types of ships.
4. The variable frequency fan for a ship cabin ventilation system according to claim 1, wherein the sensor (4) comprises a differential pressure sensor and a temperature sensor, the differential pressure sensor and the temperature sensor are installed in the ship cabin, and 3x1.5 cables are used for connecting signals into the frequency converter (2) at the same time
The copper tube connects the differential pressure sensor with the atmosphere outside the cabin.
5. The variable frequency fan for the marine engine room ventilation system as claimed in claim 1, wherein the engine room fan (1), the frequency converter (2), the remote control panel (3) and the sensor (4) are electrically connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021377444.4U CN213443064U (en) | 2020-07-14 | 2020-07-14 | Frequency conversion fan for ventilation system of ship engine room |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021377444.4U CN213443064U (en) | 2020-07-14 | 2020-07-14 | Frequency conversion fan for ventilation system of ship engine room |
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| Publication Number | Publication Date |
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| CN213443064U true CN213443064U (en) | 2021-06-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202021377444.4U Active CN213443064U (en) | 2020-07-14 | 2020-07-14 | Frequency conversion fan for ventilation system of ship engine room |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113619765A (en) * | 2021-07-21 | 2021-11-09 | 上海外高桥造船有限公司 | Ventilation system at ship machinery place |
| CN113734410A (en) * | 2021-09-17 | 2021-12-03 | 上海外高桥造船有限公司 | Ventilation device and power equipment |
| CN115195986A (en) * | 2022-05-20 | 2022-10-18 | 江苏科技大学 | Cabin heat dissipation and ventilation system of hydrogen fuel cell ship |
| CN115195987A (en) * | 2022-06-29 | 2022-10-18 | 中船邮轮科技发展有限公司 | Passenger ship cabin ventilation system and passenger ship |
| CN117360755A (en) * | 2023-12-07 | 2024-01-09 | 丹华海洋工程装备(南通)有限公司 | Suspended ceiling type marine air conditioner |
-
2020
- 2020-07-14 CN CN202021377444.4U patent/CN213443064U/en active Active
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113619765A (en) * | 2021-07-21 | 2021-11-09 | 上海外高桥造船有限公司 | Ventilation system at ship machinery place |
| CN113734410A (en) * | 2021-09-17 | 2021-12-03 | 上海外高桥造船有限公司 | Ventilation device and power equipment |
| CN113734410B (en) * | 2021-09-17 | 2023-01-31 | 上海外高桥造船有限公司 | Ventilation device and power equipment |
| CN115195986A (en) * | 2022-05-20 | 2022-10-18 | 江苏科技大学 | Cabin heat dissipation and ventilation system of hydrogen fuel cell ship |
| CN115195986B (en) * | 2022-05-20 | 2023-12-22 | 江苏科技大学 | Cabin heat dissipation and ventilation system of hydrogen fuel cell ship |
| CN115195987A (en) * | 2022-06-29 | 2022-10-18 | 中船邮轮科技发展有限公司 | Passenger ship cabin ventilation system and passenger ship |
| CN117360755A (en) * | 2023-12-07 | 2024-01-09 | 丹华海洋工程装备(南通)有限公司 | Suspended ceiling type marine air conditioner |
| CN117360755B (en) * | 2023-12-07 | 2024-03-12 | 丹华海洋工程装备(南通)有限公司 | Suspended ceiling type marine air conditioner |
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