阅读说明：本技术 一种海工平台用低噪音柜式风机盘管机组 (Marine worker's platform is with cabinet type fan-coil unit of low noise ) 是由 郭旭峰 毕江松 候兴隆 陈奇新 申辉 王根德 于 2019-03-25 设计创作，主要内容包括：本发明公开了一种海工平台用低噪音柜式风机盘管机组,包括中空的柜体,所述柜体内部空间设为进风腔、隔断腔和出风腔,所述进风腔设有进风口,所述出风腔设有出风口,所述进风口与出风口设在柜体的不同侧壁上,所述进风口设有进风消音百页,所述出风口设有出风消音百页,所述进风腔内设有换热盘管组,所述隔断腔内设有无蜗壳离心风机连通进风腔与出风腔,所述出风腔和隔断腔所在的柜体壁上设有保温层；所述海工平台用低噪音柜式风机盘管机组的空气流向为：空气经进风消音百页进入进风腔然后经过换热盘管组流向无蜗壳离心风机通过无蜗壳离心风机进入出风腔后再经出风消音百页离开柜体；结构紧凑,降噪限值明确。(The invention discloses a low-noise cabinet type fan coil unit for a maritime work platform, which comprises a hollow cabinet body, wherein the internal space of the cabinet body is provided with an air inlet cavity, a partition cavity and an air outlet cavity, the air inlet cavity is provided with an air inlet, the air outlet cavity is provided with an air outlet, the air inlet and the air outlet are arranged on different side walls of the cabinet body, the air inlet is provided with an air inlet silencing louver, the air outlet is provided with an air outlet silencing louver, a heat exchange coil group is arranged in the air inlet cavity, a volute-free centrifugal fan is arranged in the partition cavity and is communicated with the air inlet cavity and the air outlet cavity, and the wall of the cabinet body where the air outlet cavity and the; the air flow direction of the low-noise cabinet type fan-coil unit for the marine platform is as follows: air enters the air inlet cavity through the air inlet silencing louver, then flows to the volute-free centrifugal fan through the heat exchange coil group, enters the air outlet cavity through the volute-free centrifugal fan, and then leaves the cabinet body through the air outlet silencing louver; the structure is compact, and the noise reduction limit value is clear.)

1. A low-noise cabinet type fan-coil unit for a maritime work platform is characterized by comprising a hollow cabinet body, wherein the internal space of the cabinet body is provided with an air inlet cavity, a partition cavity and an air outlet cavity, the air inlet cavity is provided with an air inlet, the air outlet cavity is provided with an air outlet, the air inlet and the air outlet are arranged on different side walls of the cabinet body, the air inlet is provided with an air inlet silencing louver, the air outlet is provided with an air outlet silencing louver, a heat exchange coil group is arranged in the air inlet cavity, a volute-free centrifugal fan is arranged in the partition cavity and communicates the air inlet cavity with the air outlet cavity, and the wall of the cabinet body where the air outlet cavity and the partition cavity are located is provided with a heat insulation layer; the air flow direction of the low-noise cabinet type fan-coil unit for the marine platform is as follows: air enters the air inlet cavity through the air inlet silencing louver, then flows to the volute-free centrifugal fan through the heat exchange coil group, enters the air outlet cavity through the volute-free centrifugal fan, and then leaves the cabinet body through the air outlet silencing louver.

2. The marine platform low noise cabinet type fan coil unit of claim 1, wherein the heat exchanging coil unit is disposed in the air inlet chamber in an inclined manner to separate the air inlet from the volute-less centrifugal fan.

3. The marine platform low noise cabinet type fan coil unit of claim 1, wherein a base is provided at the bottom of the cabinet.

4. The marine platform low noise cabinet type fan coil unit of claim 3, wherein the heat exchange coil set comprises a heat exchange pipe, and the heat exchange pipe is connected to a heat exchange source through a base.

5. The marine platform low noise cabinet type fan coil unit of claim 3, wherein the base has a plurality of pull rings on its side.

6. The marine platform low noise cabinet type fan coil unit of claim 1, wherein the noise reduction louver is made of sound absorbing material.

7. The marine platform low noise cabinet type fan-coil unit of claim 1, wherein the thickness of the noise reduction louver is 1-10 mm.

8. The marine platform low noise cabinet type fan-coil unit of any one of claims 1 to 7, wherein the voluteless centrifugal fan comprises a motor and a centrifugal assembly, the centrifugal assembly is disposed in the partition chamber, and the motor is disposed in the air outlet chamber.

Technical Field

The invention relates to the field of ocean engineering platforms, in particular to a low-noise cabinet type fan coil unit for a marine engineering platform.

Background

As the environmental standards are increasing by the international maritime organization, the noise control standards on ships are also increasing, and the < noise level regulation on ships > amendment, which is effective in 7, 1/2014 by the maritime safety committee, enforces that the noise control of residential areas is below 55 decibels. The ship standardization and quality journal newly indicates that the ship noise index in China is far behind the advanced indexes in China, and the indexes of most target areas cannot be reached even with the level 3 DNV requirement. The noise control standard of the living work area of the marine platform is improved by one level compared with a ship standard; the air conditioning system is a key link influencing the comfort of the living area of the ship.

The design of the existing domestic fan-coil unit for the ship and equipment manufacturers lack a system method for meeting international low-noise standards, and the noise reduction control of some sound source devices is insufficient, for example, the noise of the traditional double-induced-draft centrifugal fan is too large, so that the air outlet noise is too large and finally the standard requirements cannot be met. The existing noise elimination measures are selected too much, so that the equipment is too large in size, the structural arrangement in the cabin or the platform is influenced, and meanwhile, the material waste is caused.

Disclosure of Invention

In view of the defects, the invention provides a low-noise cabinet type fan coil unit for a maritime work platform, which has a compact structure and a clear noise reduction limit value, can optimize the design of maritime work and ship air conditioning systems, meets increasingly strict ship noise level rules, and meets international standards.

In order to achieve the above purpose, the embodiment of the invention adopts the following technical scheme:

a low-noise cabinet type fan-coil unit for a maritime work platform comprises a hollow cabinet body, wherein the internal space of the cabinet body is provided with an air inlet cavity, a partition cavity and an air outlet cavity, the air inlet cavity is provided with an air inlet, the air outlet cavity is provided with an air outlet, the air inlet and the air outlet are arranged on different side walls of the cabinet body, the air inlet is provided with an air inlet silencing louver, the air outlet is provided with an air outlet silencing louver, a heat exchange coil group is arranged in the air inlet cavity, a volute-free centrifugal fan is arranged in the partition cavity and communicates the air inlet cavity with the air outlet cavity, and a heat insulation layer is arranged on the wall of the cabinet body where the air outlet cavity and the partition cavity are located; the air flow direction of the low-noise cabinet type fan-coil unit for the marine platform is as follows: air enters the air inlet cavity through the air inlet silencing louver, then flows to the volute-free centrifugal fan through the heat exchange coil group, enters the air outlet cavity through the volute-free centrifugal fan, and then leaves the cabinet body through the air outlet silencing louver.

According to one aspect of the invention, the heat exchange coil set is obliquely arranged in the air inlet cavity to separate the air inlet from the volute-free centrifugal fan.

According to one aspect of the invention, a base is arranged at the bottom of the cabinet body.

According to one aspect of the invention, the heat exchange coil assembly includes heat exchange tubes connected to a heat exchange source through a base.

According to one aspect of the invention, the base is provided with a plurality of pull rings on its sides.

In accordance with one aspect of the invention, the sound attenuating louver is made of a sound absorbing material.

According to one aspect of the invention, the thickness of the noise reduction louver is 1-10 mm.

According to one aspect of the invention, the volute-free centrifugal fan comprises a motor and a centrifugal assembly, wherein the centrifugal assembly is arranged in the partition cavity, and the motor is arranged in the air outlet cavity.

The implementation of the invention has the advantages that: the invention relates to a low-noise cabinet type fan coil unit for a maritime work platform, which comprises a hollow cabinet body, wherein the internal space of the cabinet body is provided with an air inlet cavity, a partition cavity and an air outlet cavity, the air inlet cavity is provided with an air inlet, the air outlet cavity is provided with an air outlet, the air inlet and the air outlet are arranged on different side walls of the cabinet body, the air inlet is provided with an air inlet silencing louver, the air outlet is provided with an air outlet silencing louver, a heat exchange coil group is arranged in the air inlet cavity, a volute-free centrifugal fan is arranged in the partition cavity and communicates the air inlet cavity with the air outlet cavity, and the wall of the cabinet body where the air outlet cavity and; the air flow direction of the low-noise cabinet type fan-coil unit for the marine platform is as follows: air enters the air inlet cavity through the air inlet silencing louver, then flows to the volute-free centrifugal fan through the heat exchange coil group, enters the air outlet cavity through the volute-free centrifugal fan, and then leaves the cabinet body through the air outlet silencing louver; a cabinet type closed structure is utilized, a high-efficiency low-noise volute-free centrifugal fan is selected, and high-pressure air outlet is created at an air outlet section (under the same parameters, the noise is reduced by about 5-10 decibels compared with a conventional centrifugal fan, and the noise range of a general fan is 45-55 decibels); the aluminum alloy air inlet and outlet louver without the conventional noise reduction measure is avoided, the air outlet louver with the sound absorption material is selected (the noise can be reduced by 3-10 decibels (according to different thicknesses of the louver) at the normal air outlet speed), and the airflow secondary noise caused by the air inlet and the air return is avoided to the maximum extent. The final test result reaches DNV COMF 2 level, and equivalently reaches CCS COMF 2 level requirements of China Classification society, the noise of the air supply cabin of the air conditioner is controlled within 55 decibels, and the fan efficiency reaches 75%; finally, the noise value of the human-occupied cabin meeting the standard requirement is realized; the structure is compact, the noise reduction limit value is clear, the design of maritime work and ship air conditioning systems can be optimized, and the increasingly strict ship noise level rule can be met, so that the system meets the international standard.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a low-noise cabinet type fan-coil unit for a marine platform according to the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

As shown in fig. 1, the low-noise cabinet type fan-coil unit for the marine platform comprises a hollow cabinet body 1, the internal space of the cabinet body is provided with an air inlet cavity 11, a partition cavity 12 and an air outlet cavity 13, the air inlet cavity is provided with an air inlet 14, the air outlet cavity is provided with an air outlet 15, the air inlet and the air outlet are arranged on different side walls of the cabinet body, the air inlet is provided with an air inlet silencing louver 3, the air outlet is provided with an air outlet silencing louver 4, the air inlet cavity is internally provided with a heat exchange coil group 5, the partition cavity is internally provided with a volute-free centrifugal fan 6 which is communicated with the air inlet cavity and the air outlet cavity, and the cabinet wall where the air outlet cavity and the partition cavity are arranged is provided with a heat insulation layer 16; the air flow direction of the low-noise cabinet type fan-coil unit for the marine platform is as follows: air enters the air inlet cavity through the air inlet silencing louver, then flows to the volute-free centrifugal fan through the heat exchange coil group, enters the air outlet cavity through the volute-free centrifugal fan, and then leaves the cabinet body through the air outlet silencing louver.

In practical application, the heat exchange coil set is obliquely arranged in the air inlet cavity to separate the air inlet from the volute-free centrifugal fan.

In practical application, the bottom of the cabinet body is provided with a base 7.

In practical application, the heat exchange coil set comprises a heat exchange pipe 51, and the heat exchange pipe is connected with a heat exchange source through a base.

In practical application, the side surface of the base is provided with a plurality of pull rings 71. The cabinet body is convenient to carry and move, and meanwhile, the cabinet body can be fixed with the ship body through the pull ring.

In practical application, the noise reduction louver is made of sound absorption materials.

In practical application, the thickness of the noise reduction louver is 1-10 mm.

In practical application, the volute-free centrifugal fan comprises a motor 61 and a centrifugal assembly 62, wherein the centrifugal assembly is arranged in the partition cavity, and the motor is arranged in the air outlet cavity.

The implementation of the invention has the advantages that: the invention relates to a low-noise cabinet type fan coil unit for a maritime work platform, which comprises a hollow cabinet body, wherein the internal space of the cabinet body is provided with an air inlet cavity, a partition cavity and an air outlet cavity, the air inlet cavity is provided with an air inlet, the air outlet cavity is provided with an air outlet, the air inlet and the air outlet are arranged on different side walls of the cabinet body, the air inlet is provided with an air inlet silencing louver, the air outlet is provided with an air outlet silencing louver, a heat exchange coil group is arranged in the air inlet cavity, a volute-free centrifugal fan is arranged in the partition cavity and communicates the air inlet cavity with the air outlet cavity, and the wall of the cabinet body where the air outlet cavity and; the air flow direction of the low-noise cabinet type fan-coil unit for the marine platform is as follows: air enters the air inlet cavity through the air inlet silencing louver, then flows to the volute-free centrifugal fan through the heat exchange coil group, enters the air outlet cavity through the volute-free centrifugal fan, and then leaves the cabinet body through the air outlet silencing louver; a cabinet type closed structure is utilized, a high-efficiency low-noise volute-free centrifugal fan is selected, and high-pressure air outlet is created at an air outlet section (under the same parameters, the noise is reduced by about 5-10 decibels compared with a conventional centrifugal fan, and the noise range of a general fan is 45-55 decibels); the aluminum alloy air inlet and outlet louver without the conventional noise reduction measure is avoided, the air outlet louver with the sound absorption material is selected (the noise can be reduced by 3-10 decibels (according to different thicknesses of the louver) at the normal air outlet speed), and the airflow secondary noise caused by the air inlet and the air return is avoided to the maximum extent. The final test result reaches DNV COMF 2 level, and equivalently reaches CCS COMF 2 level requirements of China Classification society, the noise of the air supply cabin of the air conditioner is controlled within 55 decibels, and the fan efficiency reaches 75%; finally, the noise value of the human-occupied cabin meeting the standard requirement is realized; the structure is compact, the noise reduction limit value is clear, the design of maritime work and ship air conditioning systems can be optimized, and the increasingly strict ship noise level rule can be met, so that the system meets the international standard.

The above description is only an embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention disclosed herein are intended to be covered by the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.