CN211592900U - Variable-frequency air intake and exhaust system of marine engine room - Google Patents
Variable-frequency air intake and exhaust system of marine engine room Download PDFInfo
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- CN211592900U CN211592900U CN202020009731.3U CN202020009731U CN211592900U CN 211592900 U CN211592900 U CN 211592900U CN 202020009731 U CN202020009731 U CN 202020009731U CN 211592900 U CN211592900 U CN 211592900U
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Abstract
The utility model discloses an exhaust system is advanced in marine engine room frequency conversion, include: the air inlet system, the air exhaust system and the sensing system are all connected with the variable frequency control system. The variable-frequency air feeder provides fresh air for the cabin, the variable-frequency exhaust fan exhausts hot air in the cabin, the size of an opening of the air inlet and exhaust of the cabin on a deck surface is greatly reduced, the space of a main deck or an upper building is saved, meanwhile, generator set operation and starting signals in the cabin, state signals of an air brake, temperature signals and pressure difference signals are accessed into a fan control system, the air feeder and the exhaust fan are subjected to real-time variable-frequency control, the cabin keeps proper temperature and pressure under various working conditions, and under the condition that a ventilation system of the cabin breaks down, normal operation of equipment in the cabin can be still maintained, and the safety of workers in the cabin is ensured.
Description
Technical Field
The utility model relates to a boats and ships technical field especially relates to an exhaust system is advanced in marine engine room frequency conversion.
Background
Mechanical air intake and natural air exhaust are used as the most common cabin ventilation mode and widely applied to various types of cabins
The ship and the platform use the blower to mechanically blow air to the cabin, and the air exhaust uses the micro positive pressure formed by the blower in the cabin to make hot air naturally pass through the deck opening between the chimney and the cabin and then is exhausted from the air outlet of the top surrounding wall of the chimney. Under the ventilation mode of the engine room, the running state of the fan is kept stable and is not influenced by the temperature change of the air in the engine room. In order to ensure that hot air can be discharged naturally and smoothly, the opening size of the deck between the chimney and the engine room needs to meet certain requirements.
When the size of the deck opening between the chimney and the engine room can not meet the requirement, a mechanical air intake and exhaust system can be adopted, and the mechanical air intake and exhaust system is mainly suitable for ships and platforms with smaller air intake and exhaust vent requirements. At the moment, the cabin is used as a closed space, fresh air is provided for the cabin by the blower, and hot air in the cabin is exhausted by the exhaust fan. The deck between the chimney and the cabin in the ventilation mode does not need to be provided with a large opening, and the space of a main deck or an upper building can be saved. However, when the fan is operated at maximum load, the variation of the operating conditions of the equipment in the cabin including the diesel engine may cause the instability of the air pressure in the cabin; in addition, if the fan fails, especially the blower fails, the pressure in the cabin can drop sharply, which affects the comfort and safety of the crew.
SUMMERY OF THE UTILITY MODEL
In view of this, for solving above-mentioned problem, the utility model aims at providing a marine engine room frequency conversion advances exhaust system, a serial communication port, include:
a variable frequency control system;
the air supply device comprises a fan chamber, wherein a plurality of variable frequency fans and a plurality of air inlet air brakes are arranged in the fan chamber, each variable frequency fan is connected with one air inlet air brake in a matched manner, and each variable frequency fan is in communication connection with a variable frequency control system;
the air supply machine comprises an air suction fan chamber, wherein a plurality of variable-frequency exhaust fans and a plurality of air exhaust air brakes are arranged in the air supply machine chamber, each variable-frequency exhaust fan is connected with one air exhaust air brake in a matched mode, and each variable-frequency exhaust fan is connected with a variable-frequency control system in a communication mode;
the pressure difference sensor is arranged in the engine room and is in communication connection with the variable frequency control system;
and the temperature sensors are arranged in the engine room and are in communication connection with the variable frequency control system.
In another preferred embodiment, the variable frequency control system comprises a variable frequency fan control unit and a main distribution board in communication connection with the variable frequency fan control unit, and the differential pressure sensor and the temperature sensors are in communication connection with the variable frequency fan control unit.
In another preferred embodiment, the variable frequency control system further includes: and the air brake control box is in communication connection with the variable frequency fan control unit.
In another preferred embodiment, the variable frequency control system further includes: and the monitoring alarm control system is in communication connection with the variable frequency fan control unit.
In another preferred embodiment, a plurality of the differential pressure sensors are in communication connection with the variable frequency fan control unit through 4-20mA signals.
In another preferred embodiment, a plurality of temperature sensors are in communication connection with the variable frequency fan control unit through PT100 signals.
The utility model discloses owing to adopted above-mentioned technical scheme, make it compare the positive effect that has with prior art to be:
(1) the variable-frequency air intake and exhaust system of the marine engine room is characterized in that an air supply room and an exhaust fan room are respectively arranged, so that the size of an opening of the air intake and exhaust of the engine room on the upper surface of a deck is greatly reduced, and the space of a main deck or an upper building is saved;
(2) the generator set in the engine room is accessed into the variable frequency control system through running and starting signals, state signals of an air brake, temperature signals and differential pressure signals, after the air feeder and the exhaust fan are subjected to real-time variable frequency control, the engine room can keep proper temperature and pressure under various working conditions, meanwhile, the ventilation system of the engine room is more intelligent and energy-saving, and under the condition that various faults occur in the ventilation system of the engine room, normal running of equipment in the engine room can still be maintained as far as possible, and safety of personnel in the engine room is ensured.
Drawings
Fig. 1 is a schematic diagram of the variable-frequency air intake and exhaust system of the marine engine room of the present invention.
In the drawings: 100. a variable frequency control system; 104. a variable frequency fan control unit; 101. a damper control box; 102. monitoring an alarm control system; 103. a main distribution board; 200. a nacelle; 201. a differential pressure sensor; 202. a temperature sensor; 300. an air extractor chamber; 301. a variable frequency exhaust fan; 302. an air exhaust air brake; 400. a blower chamber; 401. a variable frequency blower; 402. an air inlet damper.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and specific embodiments, but the present invention is not limited thereto.
Fig. 1 is the utility model discloses a marine engine room frequency conversion advances exhaust system's schematic diagram, shows a marine engine room frequency conversion of preferred embodiment advances exhaust system, a serial communication port, include:
a variable frequency control system 100;
the variable frequency air blower comprises a blower chamber 400, wherein a plurality of variable frequency air blowers 401 and a plurality of air inlet air brakes 402 are arranged in the blower chamber 400, each variable frequency air blower 401 is connected with one air inlet air brake 402 in a matched mode, and each variable frequency air blower 401 is in communication connection with a variable frequency control system 100;
the air extractor comprises an air extractor room 300, wherein a plurality of variable-frequency exhaust fans 301 and a plurality of air exhaust air brakes 302 are arranged in an air extractor room 400, each variable-frequency exhaust fan 301 is connected with one air exhaust air brake 302 in a matched mode, and each variable-frequency exhaust fan 301 is connected with a variable-frequency control system 100 in a communication mode;
the pressure difference sensor 201 is arranged in the cabin 200, and the pressure difference sensor 201 is in communication connection with the variable frequency control system 100;
a plurality of temperature sensors 202, a plurality of temperature sensors 202 all locate in cabin 200, and a plurality of temperature sensors 202 all are connected with frequency conversion control system 100 communication.
Further, the variable frequency control system 100 is provided with two operation modes, namely manual operation and automatic operation, to control the number of the variable frequency exhaust fans 301 and the variable frequency blowers 401; in the manual mode, the variable-frequency blower 401 and the variable-frequency exhaust fan 301 are only controlled by local buttons or remote control start-stop, and the variable-frequency control system 100 does not actively control the start-stop of the blower; in the automatic mode, the variable frequency control system 100 can automatically maintain the state of the variable frequency exhaust fan 301/variable frequency blower 401, and automatically adjust the operation number of the variable frequency exhaust fan 301 and the variable frequency blower 401 according to the operation number and the starting signal of the generator set in the cabin 200; the variable frequency control system 100 can also adjust the rotation speed of the variable frequency blower 401 and the variable frequency exhaust fan 301 in real time according to the temperature and pressure difference changes obtained by the temperature sensor 202 and the pressure difference sensor 201 in the cabin 200, so as to ensure that the temperature and the air pressure in the cabin 200 are maintained at the set values.
Further, the variable frequency blower 401 and the variable frequency exhaust fan 301 are divided into a plurality of groups, so that the variable frequency blowers and the variable frequency exhaust fans are in one-to-one correspondence, and each group of variable frequency blowers start and stop simultaneously under normal conditions. The variable frequency control system 100 automatically adjusts the number of the running groups of the fans according to the running number and the starting signal of the generator sets in the cabin 200, interlocks the state of the air brake with the starting signal of the corresponding fan, the corresponding fan cannot be started when the air brake is in a closed state, and automatically adjusts the rotating speed of the fan in real time according to the temperature signal of the temperature sensor 202 in the cabin 200 and the differential pressure signal of the differential pressure sensor 201, thereby realizing the variable frequency control of air intake and exhaust of the cabin 200.
Further, as a preferred embodiment, the variable frequency control system 100 includes a variable frequency fan control unit 104, and a main distribution board 103 communicatively connected to the variable frequency fan control unit 104, and the differential pressure sensor 201 and the plurality of temperature sensors 202 are communicatively connected to the variable frequency fan control unit 104. Further, an operation signal and a start signal of the engine unit are sent from the main distribution board 103 to the variable frequency fan control unit 104, and the variable frequency fan control unit 104 adjusts the operation numbers of the variable frequency blower 401 and the variable frequency blower 301 according to the number of engines actually operating in the nacelle 200 and the start signal.
Further, as a preferred embodiment, the variable frequency control system 100 further includes: and the air brake control box 101 is in communication connection with the variable frequency fan control unit 104. Further, the states of the inlet air damper 402 and the outlet air damper 302 are sent from the air damper control box 101 to the variable frequency fan control unit 104, the variable frequency fan control unit 104 interlocks the start of the variable frequency blower 401 with the corresponding inlet air damper 402, and if the inlet air damper 402 is in a closed state, the corresponding variable frequency blower 401 cannot be started; the start of the variable-frequency exhaust fan 301 and the corresponding exhaust air gate 302 are interlocked, and if the exhaust air gate 302 is in a closed state, the corresponding variable-frequency exhaust fan 301 cannot be started.
Further, as a preferred embodiment, the variable frequency control system 100 further includes: and the monitoring alarm control system 102 is in communication connection with the variable frequency fan control unit 104. Further, the monitoring alarm control system 102 issues an alarm when the number of operations of the variable frequency blower 401 and the variable frequency suction fan 301 does not satisfy the normal standard.
Further, as a preferred embodiment, a plurality of differential pressure sensors 201 are connected to the variable frequency fan control unit 104 through 4-20mA signals.
Further, as a preferred embodiment, a plurality of temperature sensors 202 are connected in communication with the variable frequency fan control unit 104 through PT100 signals.
The above description is only an example of the preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and those skilled in the art should be able to realize the equivalent alternatives and obvious variations of the present invention.
Claims (6)
1. The utility model provides a marine engine room frequency conversion advances exhaust system which characterized in that includes:
a variable frequency control system;
the air supply device comprises a fan chamber, wherein a plurality of variable frequency fans and a plurality of air inlet air brakes are arranged in the fan chamber, each variable frequency fan is connected with one air inlet air brake in a matched manner, and each variable frequency fan is in communication connection with a variable frequency control system;
the air supply machine comprises an air suction fan chamber, wherein a plurality of variable-frequency exhaust fans and a plurality of air exhaust air brakes are arranged in the air supply machine chamber, each variable-frequency exhaust fan is connected with one air exhaust air brake in a matched mode, and each variable-frequency exhaust fan is connected with a variable-frequency control system in a communication mode;
the pressure difference sensor is arranged in the engine room and is in communication connection with the variable frequency control system;
and the temperature sensors are arranged in the engine room and are in communication connection with the variable frequency control system.
2. The marine engine room variable-frequency air intake and exhaust system according to claim 1, wherein the variable-frequency control system comprises a variable-frequency fan control unit and a main distribution board in communication connection with the variable-frequency fan control unit, and the differential pressure sensor and the plurality of temperature sensors are in communication connection with the variable-frequency fan control unit.
3. The marine engine room variable frequency air intake and exhaust system according to claim 2, wherein the variable frequency control system further comprises: and the air brake control box is in communication connection with the variable frequency fan control unit.
4. The marine engine room variable frequency air intake and exhaust system according to claim 3, wherein the variable frequency control system further comprises: and the monitoring alarm control system is in communication connection with the variable frequency fan control unit.
5. The marine engine room variable-frequency air intake and exhaust system according to claim 2, wherein the pressure difference sensors are in communication connection with the variable-frequency fan control unit through 4-20mA signals.
6. The variable-frequency air intake and exhaust system for the marine engine room of claim 2, wherein the temperature sensors are in communication connection with the variable-frequency fan control unit through PT100 signals.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020009731.3U CN211592900U (en) | 2020-01-03 | 2020-01-03 | Variable-frequency air intake and exhaust system of marine engine room |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020009731.3U CN211592900U (en) | 2020-01-03 | 2020-01-03 | Variable-frequency air intake and exhaust system of marine engine room |
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| CN211592900U true CN211592900U (en) | 2020-09-29 |
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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 |
| CN114291245A (en) * | 2022-01-05 | 2022-04-08 | 江南造船(集团)有限责任公司 | Marine health department exhaust system |
| CN114834624A (en) * | 2022-05-23 | 2022-08-02 | 江南造船(集团)有限责任公司 | Cabin ventilation system and boats and ships suitable for extremely low temperature environment |
| 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 |
-
2020
- 2020-01-03 CN CN202020009731.3U patent/CN211592900U/en active Active
Cited By (6)
| 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 |
| CN114291245A (en) * | 2022-01-05 | 2022-04-08 | 江南造船(集团)有限责任公司 | Marine health department exhaust system |
| CN114834624A (en) * | 2022-05-23 | 2022-08-02 | 江南造船(集团)有限责任公司 | Cabin ventilation system and boats and ships suitable for extremely low temperature environment |
| 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 |
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