WO2021258502A1 - 一种燃烧热交换系统 - Google Patents

一种燃烧热交换系统 Download PDF

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Publication number
WO2021258502A1
WO2021258502A1 PCT/CN2020/106241 CN2020106241W WO2021258502A1 WO 2021258502 A1 WO2021258502 A1 WO 2021258502A1 CN 2020106241 W CN2020106241 W CN 2020106241W WO 2021258502 A1 WO2021258502 A1 WO 2021258502A1
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Prior art keywords
heat absorption
flue gas
combustion
heat exchange
exchange system
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PCT/CN2020/106241
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English (en)
French (fr)
Inventor
颜安军
陈玲辉
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浙江广涛卫厨有限公司
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Priority claimed from CN202021208058.2U external-priority patent/CN212253159U/zh
Priority claimed from CN202010591365.1A external-priority patent/CN111609555A/zh
Application filed by 浙江广涛卫厨有限公司 filed Critical 浙江广涛卫厨有限公司
Publication of WO2021258502A1 publication Critical patent/WO2021258502A1/zh

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H8/00—Fluid heaters characterised by means for extracting latent heat from flue gases by means of condensation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H9/00—Details
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H9/00—Details
    • F24H9/16—Arrangements for water drainage 
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H9/00—Details
    • F24H9/18—Arrangement or mounting of grates or heating means
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]

Definitions

  • the invention belongs to the technical field of gas heating water heaters, and specifically relates to a high-efficiency combustion heat exchange system.
  • Existing gas-fired heating water heaters usually install a fan between the main heat exchanger and the heat absorption component, and are built in the casing.
  • the flue gas passes through the main heat exchanger and then is introduced into the heat absorption component through the fan.
  • the fan itself needs to dissipate heat.
  • a fan is installed at the tail, so that part of the heat of the flue gas is taken away by the fan at the tail of the fan, which affects the heat exchange efficiency of the rear heat-absorbing component.
  • the purpose of the present invention is to provide a combustion heat exchange system, which adopts the arrangement of the heat absorption component behind the fan to improve the heat exchange efficiency.
  • a combustion heat exchange system including a combustion chamber, a flue gas chamber, the bottom of the combustion chamber is equipped with a fire exhaust, the top is installed with a main heat exchanger, the flue gas chamber is located above the combustion chamber, and the inside of the flue gas chamber Installed with heat absorption components; the flue gas chamber is covered by a fume hood, and a fan is arranged at the outlet of the flue gas chamber outside the fume hood.
  • the hot air generated in the combustion chamber flows through the main heat exchanger to the heat absorption component and then is drawn by the fan; the cold water passes through the heat absorption The components then flow to the main heat exchanger for heat exchange.
  • thermal insulation wool is installed on the side wall of the combustion chamber.
  • a flue gas channel is formed inside the flue gas chamber, and the flue gas channel enters from the top of the heat absorption component, discharges from the bottom, and then leads to the outlet of the flue gas chamber.
  • an inclined water deflector is installed at the bottom of the heat absorption assembly, and a drain pipe is connected to the lower end of the water deflector.
  • the heat absorption assembly includes a heat absorption tube and a heat absorption fin.
  • the heat absorption tubes are arranged in parallel and communicate with each other through a water box at the end, and the heat absorption fin is fixed on the outside of the heat absorption tube.
  • one end of the heat absorption component is connected with a water inlet pipe and a water outlet pipe, and the two are respectively connected to the adjacent water box, and the water outlet pipe is connected to the main heat exchanger below.
  • the upper and lower ends of the heat absorption assembly are respectively provided with inclined partitions, the upper partition and the smoke hood form an upward flue gas inlet channel that enters the top of the heat absorption assembly, and the lower end partition and the smoke hood form the smoke discharged from the bottom of the heat absorption assembly. Downstream gas channel.
  • a chimney connected to the lower exhaust channel of the flue gas is provided on one side of the smoke hood, and the fan is installed on the chimney.
  • the present invention has the following outstanding and beneficial technical effects:
  • the fan is placed behind the heat absorption component and placed outside the hood.
  • the heat dissipation of the fan itself does not affect the heat exchange of the heat absorption component, which improves the heat exchange efficiency.
  • the flue gas enters from the top of the heat absorption component, so that the condensed water is not easy to collect on the condenser, which further improves the heat exchange efficiency.
  • the inclined water guide plate at the bottom of the heat absorption component can collect and discharge the condensate dripping from the heat absorption component.
  • Fig. 1 is an external structure diagram of a combustion heat exchange system in an embodiment of the present invention.
  • Fig. 2 is an internal structure diagram of a combustion heat exchange system in an embodiment of the present invention.
  • Fig. 3 is a flue gas flow diagram of the combustion heat exchange system in the embodiment of the present invention.
  • Fig. 4 is a side view of the combustion heat exchange system in the embodiment of the present invention.
  • Fig. 5 is a cross-sectional view in the direction of A-A in Fig. 4.
  • Fig. 6 is a cross-sectional view in the direction of B-B in Fig. 4.
  • Fig. 7 is a structural diagram of a heat absorption component.
  • Fig. 8 is a schematic diagram of the cooperation between the heat absorption component and the hood.
  • a combustion heat exchange system combined with Figs. 1-3, includes a bottom plate 1, on which a fire row 5 is installed. Above the fire row 5, a combustion chamber A surrounded by insulation wool 4a and a smoke hood 3 are provided. The flue gas chamber B; the outer side of the insulation wool 4a is provided with an insulation board 4 as a support.
  • a main heat exchanger 8 is arranged on the top of the combustion chamber A, and the smoke hood 3 is installed above the combustion chamber A, and the flue gas flow passing through the main heat exchanger 8 flows to the flue gas chamber B.
  • a heat absorption assembly 7 is installed inside the flue gas chamber B, and the upper and lower parts of the heat absorption assembly 7 are respectively provided with partitions to form a flue gas channel.
  • the upper partition 9a is connected to the top right end of the heat absorption assembly 7, and the lower partition 9b is set in an inclined structure.
  • the condensed water dripping from the heat absorbing assembly 7 is collected, and the drain pipe 10 is connected to the lower end to discharge the condensed water; thereby forming a flue gas channel structure with air intake at the top and exhaust at the bottom.
  • the flue gas channel is set up so that the flue gas from the main heat exchanger 8 first flows to the left side of the heat absorption assembly 7, then merges into the top inlet of the heat absorption assembly 7, and then exits from the bottom of the heat absorption assembly 7.
  • the flow is discharged to the right side of the heat absorbing assembly 7.
  • the entire smoke hood 3 is arranged in an L-shaped structure, and the top side of the smoke hood 3 is a chimney structure, and the fan 2 is assembled on the smoke outlet on the side of the chimney to guide the internal smoke. 1 and 2 specifically, the cold water flows from the water pipe 6 through the heat absorption assembly 7 and then flows to the main heat exchanger 8 to realize heat exchange.
  • the heat absorption assembly 7 includes a heat absorption tube 7a and a heat absorption sheet 7b.
  • the heat absorption tubes 7a are arranged in parallel and communicate with each other through the end water boxes 7c, and the two end water boxes are arranged in a staggered manner, so that The cold water inside forms a detour direction; the heat absorption sheet 7b is fixed on the outside of the heat absorption tube 7a to improve the heat absorption efficiency.
  • one end of the heat absorption assembly 7 is connected with a water inlet pipe 6a and a water outlet pipe 6b, which are respectively connected to the water box on the same side, and the water outlet pipe is connected to the main heat exchanger 8 below, so that the internal water flow can be further heated.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Instantaneous Water Boilers, Portable Hot-Water Supply Apparatuses, And Control Of Portable Hot-Water Supply Apparatuses (AREA)

Abstract

一种燃烧热交换系统，包括燃烧室（A）、烟气室（B），燃烧室（A）底部安装火排（5），顶部安装主热交换器（8），烟气室（B）位于燃烧室（A）上方，烟气室（B）内部安装有吸热组件（7）；烟气室（B）由烟罩（3）遮盖，烟罩（3）外部在烟气室（B）的出口设置风机（2），燃烧室（A）产生的热气经过主热交换器（8）流向吸热组件（7）后再由风机（2）引出；冷水经过吸热组件（7）后再流向主热交换器（8）实现热交换。

Description

一种燃烧热交换系统 技术领域
本发明属于燃气采暖热水炉技术领域，具体涉及一种高效燃烧热交换系统。
背景技术
现有的燃气采暖热水炉通常将风机安装在主热交换器和吸热组件之间，内置于机壳内部，烟气经过主热交换器通过风机再引入吸热组件，由于风机自身需要散热，在尾部安装有风扇，从而使得烟气的部分热量被风机尾部风扇带走，影响了后方吸热组件的热交换效率。
发明内容
本发明的目的是提供一种燃烧热交换系统，采用风机后置于吸热组件的排布方式，提升了热交换效率。
本发明的目的是这样实现的：一种燃烧热交换系统，包括燃烧室、烟气室，燃烧室底部安装火排，顶部安装主热交换器，烟气室位于燃烧室上方，烟气室内部安装有吸热组件；烟气室由烟罩遮盖，烟罩外部在烟气室的出口设置风机，燃烧室产生的热气经过主热交换器流向吸热组件后再由风机引出；冷水经过吸热组件后再流向主热交换器实现热交换。
进一步的，所述燃烧室侧壁安装隔热棉。
进一步的，所述烟气室内部形成烟气通道，烟气通道从吸热组件的顶部进入、底部排出，再通向烟气室的出口。
进一步的，所述吸热组件的底部安装有倾斜的导水板，导水板低端对接有排水管。
进一步的，所述吸热组件包括吸热管和吸热片，吸热管平行排列并通过端部的水盒相互连通，吸热片固定在吸热管外侧。
进一步的，所述吸热组件一端连有进水管和出水管，两者分别连接在相邻的水盒上，出水管连接下方的主热交换器。
进一步的，所述吸热组件上下端分别设置倾斜的隔板，上端隔板与烟罩形成进入吸热组件顶部的烟气上进通道，下端隔板与烟罩形成从吸热组件底部排出的烟气下排通道。
进一步的，所述烟罩一侧设置连接烟气下排通道的烟囱，所述风机安装在烟囱上。
本发明相比现有技术突出且有益的技术效果是：
1、将风机后置于吸热组件后并外置于烟罩，风机自身的散热不影响吸热组件的热交换，提升了热交换效率。
2、烟气从吸热组件顶部进入，使得冷凝水不易聚集在冷凝器上，进一步提升热交换效率。
3、吸热组件底部的倾斜导水板，可以将从吸热组件上滴落的冷凝水收集并排出。
附图说明
图1是本发明实施例中燃烧热交换系统的外部结构图。
图2是本发明实施例中燃烧热交换系统的内部结构图。
图3是本发明实施例中燃烧热交换系统的烟气流向图。
图4是本发明实施例中燃烧热交换系统的侧视图。
图5是图4中A-A方向的剖视图。
图6是图4中B-B方向的剖视图。
图7是吸热组件的结构图。
图8是吸热组件与烟罩的配合示意图。
附图标记：1、底板；2、风机；3、烟罩；3a、烟囱；4、隔热板；4a、隔热棉；5、火排；6a、进水管；6b、出水管；7、吸热组件；7a、吸热管；7b、吸热片；7c、水盒；8、主热交换器；9a、上端隔板；9b、下端隔板；10、排水管；A、燃烧室；B、烟气室。
具体实施方式
下面结合附图对本发明的具体实施方式作进一步详细说明。
一种燃烧热交换系统，结合图1-3，包括底板1，在底板1上安装有火排5，火排5上方设置由隔热棉4a围成的燃烧室A和由烟罩3围成的烟气室B；隔热棉4a外侧设置隔热板4作为支撑。燃烧室A顶部设置主热交换器8，烟罩3安装在燃烧室A上方，经过主热交换器8的烟气流向烟气室B。
结合图3和图8，烟气室B内部安装有吸热组件7，吸热组件7上下方分别设置隔板以形成烟气通道。上端隔板9a连接至吸热组件7顶部右端，下端隔板9b设置成倾斜结构，一端连接在吸热组件7底部左端，另一端斜向下延伸至烟罩3，作为导水板可以将从吸热组件7上滴落的冷凝水收集，在低端对接排水管10并排出冷凝水；从而形式顶部进气，底部排气的烟气通道结构。
具体看图3，如此设置的烟气通道，使得从主热交换器8出来的烟气先流向吸热组件7左侧再汇入吸热组件7顶部入口，再由吸热组件7底部出来，流向吸热组件7右侧排出。对应的，整个烟罩3设置成L型结构，烟罩3顶部一侧为烟囱结构，风机2装配在烟囱侧向的出烟口上，将内部烟气引出。具体看图1 和图2，冷水由水管6经过吸热组件7后再流向主热交换器8实现热交换。
结合图5和图7，吸热组件7包括吸热管7a和吸热片7b，吸热管7a平行排列并通过端部的水盒7c相互连通，两个端部的水盒交错设置，使得内部的冷水形成迂回流向；吸热片7b固定在吸热管7a外侧，提高吸热效率。其中，吸热组件7一端连有进水管6a和出水管6b，两者分别连接在同侧的水盒上，出水管连接下方的主热交换器8，使得内部的水流得以进一步加热。
以上所述仅是本发明的优选实施方式，应当指出，对于本技术领域的普通技术人员来说，在不脱离本发明技术原理的前提下，还可以做出若干改进和替换，这些改进和替换也应视为本发明的保护范围。

Claims (8)

  1. 一种燃烧热交换系统，包括燃烧室(A)、烟气室(B)，其特征在于：燃烧室(A)底部安装火排(5)，顶部安装主热交换器(8)，烟气室(B)位于燃烧室(A)上方，烟气室(B)内部安装有吸热组件(7)；烟气室(B)由烟罩(3)遮盖，烟罩(3)外部在烟气室(B)的出口设置风机(2)，燃烧室(A)产生的热气经过主热交换器(8)流向吸热组件(7)后再由风机(2)引出；冷水经过吸热组件(7)后再流向主热交换器(8)实现热交换。
  2. 根据权利要求1所述的燃烧热交换系统，其特征在于：所述燃烧室(A)侧壁安装隔热棉(4a)。
  3. 根据权利要求1所述的燃烧热交换系统，其特征在于：所述烟气室(B)内部形成烟气通道，烟气通道从吸热组件(7)的顶部进入、底部排出，再通向烟气室(B)的出口。
  4. 根据权利要求3所述的燃烧热交换系统，其特征在于：所述吸热组件(7)的底部安装有倾斜的导水板，导水板低端对接有排水管(10)。
  5. 根据权利要求1所述的燃烧热交换系统，其特征在于：所述吸热组件(7)包括吸热管(7a)和吸热片(7b)，吸热管(7a)平行排列并通过端部的水盒(7c)相互连通，吸热片(7b)固定在吸热管(7a)外侧。
  6. 根据权利要求5所述的燃烧热交换系统，其特征在于：所述吸热组件(7)一端连有进水管(6a)和出水管(6b)，两者分别连接在同侧的水盒(7c)上，出水管(6b)连接下方的主热交换器(8)。
  7. 根据权利要求3所述的燃烧热交换系统，其特征在于：所述吸热组件(7)上下端分别设置隔板，上端隔板(9a)与烟罩(3)侧壁形成进入吸热组件(7)顶部的烟气上进通道，下端隔板(9b)与烟罩侧壁形成从吸热组件(7)底部排 出的烟气下排通道。
  8. 根据权利要求7所述的燃烧热交换系统，其特征在于：所述烟罩(3)一侧设置连接烟气下排通道的烟囱(3a)，所述风机(2)安装在烟囱(3a)上。
PCT/CN2020/106241 2020-06-24 2020-07-31 一种燃烧热交换系统 WO2021258502A1 (zh)

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CN202010591365.1 2020-06-24
CN202021208058.2U CN212253159U (zh) 2020-06-24 2020-06-24 一种燃烧热交换系统
CN202010591365.1A CN111609555A (zh) 2020-06-24 2020-06-24 一种燃烧热交换系统
CN202021208058.2 2020-06-24

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Publication number Priority date Publication date Assignee Title
CN101196342A (zh) * 2007-12-26 2008-06-11 成都前锋电子有限责任公司 一种冷凝式燃气热水器及烟气流动方式
CN101592402A (zh) * 2008-05-26 2009-12-02 大成产业株式会社 用于燃气锅炉的热交换装置的结构
US20140352930A1 (en) * 2013-05-28 2014-12-04 Trane International Inc. System and Method for Furnace Fluid Flow Management
US20150176862A1 (en) * 2013-12-25 2015-06-25 Noritz Corporation Water heater
CN208108491U (zh) * 2018-04-08 2018-11-16 佛山市史麦斯卫厨电器有限公司 一种冷凝式壁挂炉装置

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101196342A (zh) * 2007-12-26 2008-06-11 成都前锋电子有限责任公司 一种冷凝式燃气热水器及烟气流动方式
CN101592402A (zh) * 2008-05-26 2009-12-02 大成产业株式会社 用于燃气锅炉的热交换装置的结构
US20140352930A1 (en) * 2013-05-28 2014-12-04 Trane International Inc. System and Method for Furnace Fluid Flow Management
US20150176862A1 (en) * 2013-12-25 2015-06-25 Noritz Corporation Water heater
CN208108491U (zh) * 2018-04-08 2018-11-16 佛山市史麦斯卫厨电器有限公司 一种冷凝式壁挂炉装置

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