WO2018176858A1 - 一种烟囱排烟管 - Google Patents

一种烟囱排烟管 Download PDF

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Publication number
WO2018176858A1
WO2018176858A1 PCT/CN2017/111440 CN2017111440W WO2018176858A1 WO 2018176858 A1 WO2018176858 A1 WO 2018176858A1 CN 2017111440 W CN2017111440 W CN 2017111440W WO 2018176858 A1 WO2018176858 A1 WO 2018176858A1
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Prior art keywords
transition portion
pipe member
pipe
exhaust pipe
ship
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PCT/CN2017/111440
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English (en)
French (fr)
Inventor
王炳亮
汪建华
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广船国际有限公司
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Application filed by 广船国际有限公司 filed Critical 广船国际有限公司
Publication of WO2018176858A1 publication Critical patent/WO2018176858A1/zh

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63H—MARINE PROPULSION OR STEERING
    • B63H21/00—Use of propulsion power plant or units on vessels
    • B63H21/32—Arrangements of propulsion power-unit exhaust uptakes; Funnels peculiar to vessels
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
    • E04H12/00—Towers; Masts or poles; Chimney stacks; Water-towers; Methods of erecting such structures
    • E04H12/28—Chimney stacks, e.g. free-standing, or similar ducts

Definitions

  • the utility model relates to the technical field of marine equipment, in particular to a smoke exhaust pipe of a ship chimney.
  • the use of chimney exhaust pipes is indispensable in ships.
  • the existing chimney exhaust pipes are generally designed to exhaust smoke to the rear or side, and when the smoke is exhausted by the above-mentioned structure, the goods are blocked and ventilated. Due to system suction and other reasons, a local cyclonic vortex is formed between the cargo and the equipment on the shipboard.
  • the existing chimney also adopts the method of guiding the exhaust pipe to the side of the string for exhausting smoke.
  • the purpose of the utility model is to provide a ship chimney exhaust pipe, which can solve the technical problem that the smoke discharged from the chimney in the prior art pollutes the living and working environment on the hull.
  • a chimney exhaust pipe comprising an upper pipe member, a transition portion and a lower pipe member connected to the hull exhaust system, wherein two ends of the transition portion are respectively connected to the upper pipe member and the lower pipe member;
  • the transition portion is a rotary pipe body structure whose diameter gradually increases from top to bottom.
  • the upper tube and the lower tube are straight tubes.
  • the upper end surface of the upper pipe member has an oblique cross section for preventing rainwater from entering the exhaust pipe.
  • the angle between the oblique section and the cross section of the upper tube member is 10° to 15°.
  • the upper tube member, the lower tube member and the transition portion are of a unitary structure, the diameter of the lowermost end of the transition portion is the same as the diameter of the lower tube member, and the diameter of the uppermost end of the transition portion is the same as the diameter of the upper tube member.
  • an angle between the bus bar of the transition portion and the axis thereof is 10° to 14°.
  • the axes of the upper tube member, the transition portion and the lower tube member coincide.
  • a water guiding and discharging device is disposed in the upper pipe member, the lower pipe member and the transition portion.
  • the present invention also provides a ship comprising the above-described chimney exhaust pipe.
  • the utility model provides a transition portion between the lower pipe member and the upper pipe member, and the transition portion is provided as a rotary pipe body structure whose diameter is gradually increased from the top to the bottom, and the transition portion has an increased smoke on the smoke discharged from the chimney exhaust pipe.
  • the effect of the gas flow rate can increase the discharge height of the flue gas finally discharged from the upper pipe member, thereby avoiding the situation in which the flue gas pollutes the living environment and the working environment on the hull; the improvement of the existing exhaust pipe of the present invention is not
  • the equipment on the hull needs to be modified, and the improved exhaust pipe has little impact on the equipment on the hull; the engineering quantity of the hull is small, the structural strength of the hull is low, and time and labor are saved, saving The cost of the modification; in addition, the improved process of the present invention is simple and easy to implement.
  • the utility model also provides a ship. By installing the above-mentioned exhaust pipe on the ship, the discharge height of the flue gas finally discharged from the upper pipe member can be increased, thereby avoiding the situation that the flue gas pollutes the living environment and the working environment on the hull. .
  • FIG. 1 is a schematic structural view of a smoke stacking pipe of a ship provided by the utility model
  • FIG. 2 is a schematic view of a ship chimney exhaust pipe provided on the ship provided by the utility model.
  • the present embodiment provides a chimney exhaust pipe, as shown in FIG. 1 and FIG. 2, comprising an upper pipe member 1, a transition portion 2, and a lower pipe member 3 connected to the hull exhaust system, and the two ends of the transition portion 2 are respectively The upper pipe member 1 and the lower pipe member 3 are connected to each other.
  • the transition portion 2 is a rotary pipe body structure in which the diameter gradually increases from the top to the bottom, wherein the upper and lower portions are upper and lower in FIG.
  • a transition portion 2 is provided between the lower pipe member 3 and the upper pipe member 1, and the transition portion 2 is provided as a rotary pipe body structure whose diameter is gradually increased from the top to the bottom, and the transition portion 2 is discharged from the chimney exhaust pipe.
  • the flue gas has the function of increasing the flow rate of the flue gas, and can increase the discharge height of the flue gas finally discharged from the upper pipe member 1, thereby avoiding the situation that the flue gas pollutes the living environment and the working environment on the hull, and the present embodiment passes the existing
  • the exhaust pipe is improved mainly by increasing the flow rate of the flue gas in the exhaust pipe, thereby increasing the emission height of the flue gas and solving the problem of the living environment and the working environment on the hull of the flue gas pollution.
  • the embodiment directly improves the existing exhaust pipe, and does not need to modify the equipment on the hull, and the improved exhaust pipe has little influence on the equipment on the hull; the engineering amount of the hull structure modification is small, and The hull structural strength requirement is low, saving time and labor, and saving the transformation cost; in addition, the improved process of the utility model is simple and easy to implement.
  • the upper pipe member 1, the transition portion 2 and the lower pipe member 3 in this embodiment are all pipe bodies, and the pipe diameters of the upper pipe member 1, the transition portion 2 and the lower pipe member 3 may vary depending on the size of the ship.
  • the upper pipe member 1 and the lower pipe member 3 are straight pipes, and the angle between the bus bar of the transition portion 2 and the axis thereof is 10° to 14°.
  • the upper pipe member 1 is arranged as a straight pipe to ensure that the flow field of the flue gas is stabilized at the outlet;
  • the lower pipe member 3 is set as a straight pipe to facilitate the smooth discharge of the flue gas in the hull exhaust system;
  • the angle between the bus bar of the transition portion 2 and the axis is smaller, the working pressure of the main machine is correspondingly reduced. Department is easy to lead to the Lord The machine is damaged.
  • the transition portion 2 is set as a swirling tube whose diameter between the bus bar and the axis at an angle of 10 to 14 degrees gradually increases from top to bottom, and the hull exhaust can be reduced.
  • the working pressure of the host in the system prevents the local pressure from being excessive and damages the host.
  • the upper end surface of the upper pipe member 1 is an oblique cross section for preventing rainwater from entering the exhaust pipe, thereby damaging the main machine;
  • the oblique section in the embodiment adopts an angle of 10° with the cross section of the upper pipe member 1
  • the ⁇ 15° design can reduce the amount of water entering the chimney during navigation.
  • the upper tube member 1, the lower tube member 3 and the transition portion 2 in the embodiment are of a unitary structure, wherein the diameter of the lowermost end of the transition portion 2 is the same as the diameter of the lower tube member 3, and the diameter of the uppermost end of the transition portion 2 is
  • the upper tube 1 has the same diameter.
  • the upper pipe member 1, the lower pipe member 3 and the transition portion 2 are provided with a water drainage and release device.
  • a water drainage and release device When the rainwater passes through the oblique section of the upper pipe member 1, some rainwater still enters the chimney exhaust pipe, and the device can absorb the inlet pipe. Part of the rain inside the pipe, thus avoiding rain and causing damage to the main engine.
  • the embodiment further provides a ship comprising the above-mentioned chimney exhaust pipe.
  • a ship comprising the above-mentioned chimney exhaust pipe.
  • the upper pipe member 1, the lower pipe member 3 and the transition portion 2 of the chimney exhaust pipe provided in the embodiment are all of the same axis, and the chimney exhaust pipe adopts a vertical upward exhausting manner, wherein the arrow in FIG. 2
  • the area is the discharge area of the flue gas.
  • the chimney exhaust pipe is exhausted vertically upwards as a whole, there is an effect of increasing the emission height of the flue gas.
  • the overall height design of the chimney exhaust pipe can be adjusted according to the requirements of the antenna, radar and other equipment on the hull. On the basis of increasing the emission height of the flue gas, the normal operation of the equipment on the hull is not affected. Affect the needs of work areas and living areas on the hull.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Incineration Of Waste (AREA)
  • Exhaust Silencers (AREA)

Abstract

一种船舶烟囱排烟管，包括上管件（1）、过渡部（2）及连接于船体排烟系统的下管件（3），过渡部（2）的两端分别连接于上管件（1）和下管件（3）；过渡部（2）为直径自上而下逐渐增大的回转管体结构，过渡部（2）对从烟囱排烟管排出的烟气具有增加烟气流速的作用，能够增加最终从上管件（1）排出的烟气的排放高度，进而避免了烟气污染船体上的居住环境和工作环境的情况，此外，烟囱排烟管是在现有排烟管基础上进行的改进，对船体结构改动的工程量小，且对船体结构强度要求较低。

Description

一种烟囱排烟管 技术领域
本实用新型涉及船舶设备技术领域，尤其涉及一种船舶烟囱排烟管。
背景技术
烟囱排烟管的使用在船舶中是不可或缺的，现有的烟囱排烟管设计一般为向后方或侧上方排烟，而当采用上述结构的烟囱排烟时，由于货物阻挡以及受通风系统抽吸等原因，在货物与船板上的设备之间形成局部气旋涡流，当烟气通过通风系统进入居住和工作区域，由于气旋涡流的作用，会影响船员的生活和工作环境；此外，现有的烟囱还采用将排烟管引至弦侧进行排烟的方式避免上述问题，当采用该方式时，虽然可以降低烟气对船舶上的居住和工作区域的影响，但是需要的工程量大，此外，这对船体结构、电气的天线、雷达等都有较大影响。
实用新型内容
本实用新型的目的在于提出一种船舶烟囱排烟管，能够解决现有技术中烟囱排出的烟气污染船体上的居住和工作环境的技术问题。
为达此目的，本实用新型采用以下技术方案：
一种烟囱排烟管，包括上管件、过渡部及连接于船体排烟系统的下管件，所述过渡部的两端分别连接于所述上管件和下管件；
所述过渡部为直径自上而下逐渐增大的回转管体结构。
进一步的，所述上管件和下管件均为直管。
进一步的，所述上管件的上端面为斜截面，用于防止雨水进入排烟管。
进一步的，所述斜截面与所述上管件的横截面的夹角为10°～15°。
进一步的，所述上管件、下管件及过渡部为一体结构，所述过渡部最下端的直径与所述下管件的直径相同，所述过渡部最上端的直径与所述上管件的直径相同。
进一步的，所述过渡部的母线与其轴线之间的夹角为10°～14°。
进一步的，所述上管件、过渡部及下管件的轴线重合。
进一步的，所述上管件、下管件及过渡部内均设有引水泄放装置。
为实现上述目的，本实用新型还提供了一种船舶，包括上述的烟囱排烟管。
有益效果：
本实用新型通过在下管件与上管件之间设置有过渡部，且过渡部设置为直径自上而下逐渐增大的回转管体结构，过渡部对从烟囱排烟管排出的烟气具有增加烟气流速的作用，能够增加最终从上管件排出的烟气的排放高度，进而避免了烟气污染船体上的居住环境和工作环境的情况；本实用新型对现有的排烟管进行的改进不需要对船体上的设备进行改动，且改进后的排烟管对船体上的设备的影响小；对船体的结构改的工程量小，对船体结构强度要求较低，且省时省力，节约了改造的成本；此外，本实用新型的改进工艺简单，便于实施。
本实用新型还提供了一种船舶，通过在船舶上设置上述排烟管，能够增加最终从上管件排出的烟气的排放高度，进而避免了烟气污染船体上的居住环境和工作环境的情况。
附图说明
图1是本实用新型提供的船舶烟囱排烟管的结构示意图；
图2是本实用新型提供的船舶烟囱排烟管设置于船舶上的示意图。
图中：
1、上管件；2、过渡部；3、下管件。
具体实施方式
为了使本领域技术人员更好地理解本实用新型的技术方案，下面结合附图并通过具体实施方式来进一步说明本实用新型的技术方案。
本实施例提供了一种烟囱排烟管，如图1和图2所示，包括上管件1、过渡部2及连接于船体排烟系统的下管件3，所述过渡部2的两端分别连接于所述上管件1和下管件3，所述过渡部2为直径自上而下逐渐增大的回转管体结构，其中，上、下为图1的上方和下方。本实施例通过在下管件3与上管件1之间设置有过渡部2，且过渡部2设置为直径自上而下逐渐增大的回转管体结构，过渡部2对从烟囱排烟管排出的烟气具有增加烟气流速的作用，能够增加最终从上管件1排出的烟气的排放高度，进而避免了烟气污染船体上的居住环境和工作环境的情况，本实施例通过对现有的排烟管进行改进，主要是通过增加排烟管内的烟气流速，从而增加烟气的排放高度进而解决烟气污染船体上的居住环境和工作环境的问题。本实施例直接对现有的排烟管进行改进，不需要对船体上的设备进行改动，且改进后的排烟管对船体上的设备影响小；对船体结构改动的工程量小，且对船体结构强度要求较低，且省时省力，节约了改造成本；此外，本实用新型的改进工艺简单，且便于实施。
本实施例中的上管件1、过渡部2和下管件3均为管体，上管件1、过渡部2及下管件3的管体直径可以随船舶大小的不同而变化。其中，上管件1和下管件3均为直管，过渡部2的母线与其轴线的夹角为10°～14°。本实施例将上管件1设置为直管可以确保烟气的流场在出口处达到稳定；将下管件3设置为直管便于船体排烟系统内的烟气可以顺畅排出；由于当将过渡部2的母线与轴线夹角越大，主机的工作压力也相应地越大，容易导致主体受到损坏，当将过渡部2的母线与轴线夹角越小，主机的工作压力也相应地减小，部容易导致主 机受到损坏，因而本实施例中将过渡部2设置为其母线与轴线夹角为10°～14°的小角度的直径自上至下逐渐变大的回旋状管体，可以降低船体排烟系统内的主机的工作压力，防止出现局部压力过大而损坏主机的情况。
其中，上管件1的上端面为斜截面，用于防止雨水进入排烟管，进而损坏主机的情况发生；本实施例中的斜截面采用与所述上管件1横截面呈夹角为10°～15°的设计，可以件少航行中烟囱的进水量。
本实施例中的上管件1、下管件3及过渡部2为一体结构，其中，所述过渡部2最下端的直径与所述下管件3的直径相同，所述过渡部2最上端的直径与所述上管件1的直径相同。
上述的上管件1、下管件3及过渡部2内均设有引水泄放装置，当雨水通过上管件1的斜截面后，仍有部分雨水进入烟囱排烟管，该装置则可以吸收进入排烟管内的部分雨水，从而避免雨水并对主机造成损害。
本实施例还提供了一种船舶，包括上述的烟囱排烟管，通过在船舶上设置上述排烟管，能够增加最终从上管件1排出的烟气的排放高度，进而避免了烟气污染船体上的居住环境和工作环境的情况。
此外，本实施例中提供的烟囱排烟管的上管件1、下管件3及过渡部2均为同一轴线，该烟囱排烟管采用竖直向上排烟的方式，其中，图2中的箭头区域为烟气的排放区域，当烟囱排烟管整体上竖直向上排烟时，有增加烟气排放高度的作用。具体的，烟囱排烟管整体高度的设计可以根据船体上的天线、雷达等设备的要求适应性进行调整，在增加烟气的排放高度的基础上，达到不影响船体上的设备正常工作及不影响船体上的工作区域与生活区域的需求。
注意，以上显示和描述了本实用新型的基本原理和主要特征和本实用新型的优点。本行业的技术人员应该了解，本实用新型不受上述实施方式的限制， 上述实施方式和说明书中描述的只是说明本实用新型的原理，在不脱离本实用新型精神和范围的前提下，本实用新型还会有各种变化和改进，这些变化和改进都落入要求保护的本实用新型范围内，本实用新型的要求保护范围由所附的权利要求书及其等效物界定。

Claims (9)

  1. 一种烟囱排烟管，其特征在于，包括上管件(1)、过渡部(2)及连接于船体排烟系统的下管件(3)，所述过渡部(2)的两端分别连接于所述上管件(1)和下管件(3)；
    所述过渡部(2)为直径自上而下逐渐增大的回转管体结构。
  2. 根据权利要求1所述的烟囱排烟管，其特征在于，所述上管件(1)和下管件(3)均为直管。
  3. 根据权利要求1所述的烟囱排烟管，其特征在于，所述上管件(1)的上端面为斜截面。
  4. 根据权利要求3所述的烟囱排烟管，其特征在于，所述斜截面与所述上管件(1)的横截面的夹角为10°～15°。
  5. 根据权利要求4所述的烟囱排烟管，其特征在于，所述上管件(1)、下管件(3)及过渡部(2)为一体结构，所述过渡部(2)最下端的直径与所述下管件(3)的直径相同，所述过渡部(2)最上端的直径与所述上管件(1)的直径相同。
  6. 根据权利要求5所述的烟囱排烟管，其特征在于，所述过渡部(2)的母线与其轴线之间的夹角为10°～14°。
  7. 根据权利要求6所述的烟囱排烟管，其特征在于，所述上管件(1)、过渡部(2)及下管件(3)的轴线重合。
  8. 根据权利要求7所述的烟囱排烟管，其特征在于，所述上管件(1)、下管件(3)及过渡部(2)内均设有引水泄放装置。
  9. 一种船舶，其特征在于，包括权利要求1-8任一所述的烟囱排烟管。
PCT/CN2017/111440 2017-03-29 2017-11-16 一种烟囱排烟管 WO2018176858A1 (zh)

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CN112503555A (zh) * 2020-11-27 2021-03-16 中船澄西船舶修造有限公司 一种烟囱顶部防烟灰结构

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CN108528671A (zh) * 2018-04-10 2018-09-14 上海船舶研究设计院（中国船舶工业集团公司第六0四研究院） 船及烟囱安装方法
CN112722228B (zh) * 2021-02-24 2022-10-21 广州船舶及海洋工程设计研究院（中国船舶工业集团公司第六0五研究院） 一种船舶水下排烟管结构

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