WO2018218572A1 - 一种垃圾焚烧炉炉墙冷却风收集系统 - Google Patents

一种垃圾焚烧炉炉墙冷却风收集系统 Download PDF

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Publication number
WO2018218572A1
WO2018218572A1 PCT/CN2017/086774 CN2017086774W WO2018218572A1 WO 2018218572 A1 WO2018218572 A1 WO 2018218572A1 CN 2017086774 W CN2017086774 W CN 2017086774W WO 2018218572 A1 WO2018218572 A1 WO 2018218572A1
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WIPO (PCT)
Prior art keywords
furnace wall
cooling air
duct
air
furnace
Prior art date
Application number
PCT/CN2017/086774
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English (en)
French (fr)
Inventor
刘志强
Original Assignee
深圳市能源环保有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by 深圳市能源环保有限公司 filed Critical 深圳市能源环保有限公司
Priority to PCT/CN2017/086774 priority Critical patent/WO2018218572A1/zh
Publication of WO2018218572A1 publication Critical patent/WO2018218572A1/zh

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G5/00—Incineration of waste; Incinerator constructions; Details, accessories or control therefor
    • F23G5/44—Details; Accessories
    • F23G5/46—Recuperation of heat

Definitions

  • the invention relates to a waste incinerator furnace wall cooling system, in particular to a garbage incinerator furnace wall cooling air collecting system.
  • the domestic waste incinerator furnace wall usually consists of insulation cotton layer, thermal insulation pouring material, thermal insulation brick, air cooling layer and refractory brick layer.
  • the air cooling layer is cooled by the centrifugal fan from the boiler room (or garbage pool) to cool the furnace wall.
  • the furnace wall of the incinerator is opened with a ventilation hole on the upper side of the fire side.
  • the cooling wind of the furnace wall is sent from the bottom of the furnace wall to the furnace wall, and then enters the furnace through the air outlet of the upper furnace wall through the refractory brick side of the incinerator, and the furnace wall is cooled. Wind, the surface temperature of the furnace wall of the incinerator is generally not more than 50 °C during normal operation.
  • the dry section of the domestic waste incinerator requires hot air (usually called primary air) to dry the garbage.
  • hot air usually called primary air
  • the extracted wind generally comes from the garbage pool.
  • the wind temperature is generally normal temperature, so it needs to pass.
  • the heater (heater) heat exchange increases the air temperature to about 200 ° C, and then feeds it into the furnace to dry the garbage entering the furnace.
  • the cooling air of the waste incinerator furnace wall is taken from the garbage pool (or boiler room). After passing through the various furnace walls, the air temperature after heating through the furnace wall has been further improved. The current situation is that these winds are direct It is a big waste of energy when it is sent to the incinerator without further recycling.
  • the cooling air on the wall of the furnace is sent to the furnace, which increases the load on the induced draft fan, which increases the power consumption of the plant.
  • a garbage incinerator furnace wall cooling air collecting system the cooling wind extracted from the boiler room or the garbage pool by the centrifugal fan is transported to the bottom of the furnace wall through the pipeline to enter the furnace wall, and the cooling wind flows through the furnace from bottom to top.
  • the wall cools the furnace wall and then exits from the upper furnace wall. It is characterized in that a collecting duct is also provided, and the cooling air coming out from the furnace wall is transported to the primary air suction duct through the collecting duct.
  • the technical solution proposed by the invention solves the technical problem that a garbage incinerator furnace wall cooling air collecting system, the cooling wind extracted from the boiler room or the garbage pool by the centrifugal fan is transported to the bottom of the furnace wall through the pipeline to enter the furnace wall, and the cooling wind is from The bottom wall flows through the furnace wall to cool the furnace wall and then exits from the upper furnace wall.
  • the feature is that a collecting duct is also provided, and the cooling air coming out from the furnace wall is transported to the primary air suction duct through the collecting duct. .
  • the invention has the beneficial effects of a garbage incinerator furnace wall cooling air collecting system, and the cooling wind extracted from the boiler room or the garbage pool by the centrifugal fan is transported to the bottom of the furnace wall through the pipeline to enter the furnace wall, and the cooling wind flows from the bottom to the top through the furnace wall Cooling the furnace wall and then leaving the furnace wall from the upper furnace wall, characterized in that a collecting duct is also provided, and the cooling air coming out from the furnace wall is transported to the primary air suction duct through the collecting duct, due to the furnace The cooling air coming out of the wall has absorbed a part of the heat of the furnace wall, and the temperature has risen.
  • the wind can effectively increase the temperature of the primary air intake and reduce the energy consumed by the primary air heating.
  • the load on the furnace induced draft fan is reduced, further saving energy and reducing consumption.
  • Figure 1 is a schematic view showing the structure of a first embodiment of the present invention.
  • FIG. 1 is a schematic view showing the structure of a first embodiment of the present invention.
  • the figure shows that in this example, a waste incinerator furnace wall cooling air collection system, the cooling wind extracted from the boiler room or the garbage pool by the centrifugal fan is sucked into the wind main duct 2A, and then inhaled into the furnace duct 2A1.
  • the air inlet 2A11 from the bottom of the incinerator enters the furnace wall, and the cooling air flows from the bottom to the top through the furnace wall to cool the furnace wall, and then exits from the upper air outlet 2B11 of the incinerator, and is characterized in that a collecting duct is also provided,
  • the collecting air duct includes a main air duct 2B for exhausting, and a wind duct 2B1 is exhausted, and the cooling air from the upper air outlet 2B11 of the incinerator is sequentially discharged through the exhaust air duct 2B1, the exhaust main duct 2B, and finally enters a wind suction port. .
  • the temperature of the primary air intake wind can be increased, the energy consumed by the primary air heating temperature can be effectively reduced, and the load of the furnace induced draft fan can be reduced, thereby further saving energy and reducing consumption.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)

Abstract

一种垃圾焚烧炉炉墙冷却风收集系统，离心风机抽取冷却风之后，经管道输送到炉墙底部，然后由下往上流经炉壁并从炉墙上部离开，从炉墙上部出来的冷却风经收集风管被输送到一次风吸入风管。该冷却风收集系统可以有效地提高一次风吸入风温度，降低一次风加热所消耗的能量，减少了炉膛引风机的负荷，节约能源。

Description

一种垃圾焚烧炉炉墙冷却风收集系统 技术领域
本发明涉及一种垃圾焚烧炉炉墙冷却系统，尤其涉及一种垃圾焚烧炉炉墙冷却风收集系统。
背景技术
生活垃圾焚烧炉炉墙通常由保温棉层、保温浇筑料、保温砖、空气冷却层及耐火砖层组成，其中空气冷却层由离心风机从锅炉间(或垃圾池)抽取冷风对炉墙进行冷却，焚烧炉炉墙靠火侧上部开了通风孔，炉墙冷却风从炉墙底部送入炉墙后再从上部炉墙通过焚烧炉耐火砖侧均匀布置的风口进入炉膛，由于有炉墙冷却风，正常运行时焚烧炉炉墙外表面温度一般不超过50℃。
但另一方面，生活垃圾焚烧炉干燥段需要热风(通常称为一次风)对垃圾进行干燥，为维持垃圾池负压，抽取的风一般来自垃圾池，风温一般为常温，因此，需要通过加热器(暖风器)换热将风温提高至200℃左右，然后送入炉膛对进入炉膛的垃圾进行烘干。
问题是：第一、垃圾焚烧炉炉墙冷却风取自垃圾池(或锅炉间)，经过各段炉墙后，经炉墙加热之后的风温已经进一步提高，目前情况是，这些风是直接送入焚烧炉而没有进一步回收利用，这是一种很大的能源浪费。第二、炉墙上部的冷却风送入炉膛一方面又增加了引风机的负荷，造成工厂用电增加。
发明内容
为了解决现有技术问题，一种垃圾焚烧炉炉墙冷却风收集系统，离心风机从锅炉间或垃圾池抽取的冷却风，经管道输送到炉墙底部进入炉墙，冷却风从下往上流经炉壁对炉墙进行冷却、然后再从上部炉墙离开，其特征是，还设置收集风管，从炉墙上部出来的冷却风经收集风管被输送到一次风吸入风管。
本发明解决技术问题所提出的技术方案是，一种垃圾焚烧炉炉墙冷却风收集系统，离心风机从锅炉间或垃圾池抽取的冷却风，经管道输送到炉墙底部进入炉墙，冷却风从下往上流经炉壁对炉墙进行冷却、然后再从上部炉墙离开，其特征是，还设置收集风管，从炉墙上部出来的冷却风经收集风管被输送到一次风吸入风管。
本发明的有益效果：一种垃圾焚烧炉炉墙冷却风收集系统，离心风机从锅炉间或垃圾池抽取的冷却风，经管道输送到炉墙底部进入炉墙，冷却风从下往上流经炉壁对炉墙进行冷却、然后再从上部炉墙离开炉墙，其特征是，还设置收集风管，从炉墙上部出来的冷却风经收集风管被输送到一次风吸入风管，由于从炉墙上部出来的冷却风已经吸收了炉壁的一部份热量，温度已经升高，作为垃圾焚烧炉干燥段一次风吸入风，可以有效提高一次风吸入风温度，降低一次风加热所消耗的能量，同时，减少了炉膛引风机的负荷，进一步节约能源、减低消耗。
附图说明：
图1为本发明提出的第一个实施例的结构示意图。
图中，
1A吸入风主阀门，1A1吸入风入炉阀门，1B排出风主阀门，1B1排出风出炉阀门，
2A吸入风主风管，2A1吸入风入炉风管，2A11焚烧炉底部入风口，2B排出风主风管，2B1排出风出炉风管，2B11焚烧炉上部出风口。
具体实施方式
图1为本发明提出的第一个实施例的结构示意图。图中显示，本例中，一种垃圾焚烧炉炉墙冷却风收集系统，离心风机从锅炉间或垃圾池抽取的冷却风，经吸入风主风管2A、再经吸入风入炉风管2A1、然后从焚烧炉底部入风口2A11进入炉墙，冷却风从下往上流经炉壁对炉墙进行冷却，然后再从焚烧炉上部出风口2B11离开，其特征是，还设置收集风管，所述收集风管包括排出风主风管2B，排出风出炉风管2B1，从焚烧炉上部出风口2B11出来的冷却风依次经排出风出炉风管2B1、排出风主风管2B最后进入一次风吸入口。
由于从炉墙上部出来的冷却风已经吸收了炉壁的一部份热量，温度已经升高，将其引入到垃圾焚烧炉一次风的吸入口，作为垃圾焚烧炉干燥段一次风的吸入风，可以提高一次风吸入风的温度，有效降低一次风加热升温所消耗的能量，同时，减少了炉膛引风机的负荷，进一步节约能源、减低消耗。

Claims (1)

  1. 一种垃圾焚烧炉炉墙冷却风收集系统，离心风机从锅炉间或垃圾池抽取的冷却风，经管道输送到炉墙底部进入炉墙，冷却风从下往上流经炉壁对炉墙进行冷却、然后再从上部炉墙离开，其特征是，还设置收集风管，从炉墙上部出来的冷却风经收集风管被输送到一次风吸入风管。
PCT/CN2017/086774 2017-06-01 2017-06-01 一种垃圾焚烧炉炉墙冷却风收集系统 WO2018218572A1 (zh)

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20070028989A (ko) * 2005-09-08 2007-03-13 전용두 입자순환식 배가스 냉각용 열교환기
CN103994444A (zh) * 2014-05-14 2014-08-20 无锡华光锅炉股份有限公司 一种垃圾焚烧锅炉的炉墙冷却装置
CN107013927A (zh) * 2017-06-01 2017-08-04 深圳市能源环保有限公司 一种垃圾焚烧炉炉墙冷却风收集系统

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20070028989A (ko) * 2005-09-08 2007-03-13 전용두 입자순환식 배가스 냉각용 열교환기
CN103994444A (zh) * 2014-05-14 2014-08-20 无锡华光锅炉股份有限公司 一种垃圾焚烧锅炉的炉墙冷却装置
CN107013927A (zh) * 2017-06-01 2017-08-04 深圳市能源环保有限公司 一种垃圾焚烧炉炉墙冷却风收集系统

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