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WO2018120151A1 - Windshield and gas water heater having the same - Google Patents

Windshield and gas water heater having the same Download PDF

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Publication number
WO2018120151A1
WO2018120151A1 PCT/CN2016/113797 CN2016113797W WO2018120151A1 WO 2018120151 A1 WO2018120151 A1 WO 2018120151A1 CN 2016113797 W CN2016113797 W CN 2016113797W WO 2018120151 A1 WO2018120151 A1 WO 2018120151A1
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WO
WIPO (PCT)
Prior art keywords
windshield
inner cover
windproof
cover
exhaust
Prior art date
Application number
PCT/CN2016/113797
Other languages
French (fr)
Chinese (zh)
Inventor
代先锋
仇正良
梁国荣
Original Assignee
芜湖美的厨卫电器制造有限公司
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.)
Filing date
Publication date
Application filed by 芜湖美的厨卫电器制造有限公司 filed Critical 芜湖美的厨卫电器制造有限公司
Priority to PCT/CN2016/113797 priority Critical patent/WO2018120151A1/en
Publication of WO2018120151A1 publication Critical patent/WO2018120151A1/en

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23JREMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J13/00Fittings for chimneys or flues 
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24HFLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H1/00Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24HFLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H9/00Details

Definitions

  • the present invention relates to the field of electrical appliance manufacturing technology, and in particular to a windshield and a gas water heater having the windshield.
  • the burner in order to facilitate the exhausting of smoke, the burner is usually disposed under the flue so that when there is wind outside, that is, when the air is blown outside, the external wind will form a descending airflow of a certain flow velocity in the flue.
  • the descending airflow blows along the flue to the burner, affecting the combustion conditions, easily leading to flame extinction, tempering and flames exceeding the boundary of the combustion chamber, and easily causing excessive emissions of flue gas.
  • the present invention aims to solve at least one of the above technical problems in the related art to some extent.
  • the present invention provides a windshield that can reduce the influence of the external air blow on the combustion condition, and achieve the purpose of stable combustion and reasonable smoke.
  • the invention also proposes a gas water heater having the windshield.
  • a windshield is provided, the windshield cover includes: a windproof cover, the windshield cover is provided with a smoke inlet, a smoke exhaust port and an exhaust air flow passage; and a windproof inner cover, a windproof inner cover is disposed in the windproof cover and located at the exhaust vent, wherein the windproof inner cover is provided with a one-way flue gas outlet, and the windproof inner cover and the windproof cover define a smoke exhaust flow a windproof inner cover having a smoke guiding surface for guiding an airflow flowing out of the windshield from the one-way flue gas outlet to the exhaust gas flow path and for flowing the windproof flow into the windproof passage
  • the air flow of the hood is directed to the air guiding surface of the exhaust air flow path.
  • the windshield according to the embodiment of the invention can reduce the influence on the combustion condition when the outer air blows, and achieve the purpose of stable combustion and reasonable smoke.
  • the windshield according to an embodiment of the present invention may further have the following additional technical features:
  • the windshield cover includes: an outer cover body, an upper end of the outer cover body is open to form the exhaust vent, and a lower end of the outer cover is open to form the smoke inlet, the cover
  • the exhaust flow passage is defined between the body and the windproof inner cover; the pillar is connected to a lower circumference of the outer cover to form the exhaust flow below a lower circumference of the outer cover Road.
  • the windshield cover further includes: a shroud attached to an upper circumference of the outer casing and disposed around the exhaust vent.
  • the cross-sectional area of the inner space of the outer cover gradually increases from top to bottom.
  • the struts are plural and are spaced apart along the circumference of the outer casing.
  • the windproof inner cover includes: an inner cover body, the inner cover body and the windproof outer cover define the exhaust flow passage, and the inner cover body is provided with a through hole, The upper surface of the inner cover body constitutes the air guiding surface; a windshield disposed on the inner cover body and located above the through hole, the windshield partially blocking the through hole
  • the holes form a single-phase flue gas outlet toward the exhaust flow path, and an inner surface of the windshield constitutes the smoke guiding surface.
  • the upper surface of the inner cover body extends obliquely downward from the center to the outer periphery.
  • the through holes are plural and are disposed along a circumferential interval of the inner cover body, and the windshield is a plurality of and respectively located above the plurality of through holes.
  • the windshield cover and the windshield inner cover are connected by a plurality of ribs spaced along the circumferential direction of the exhaust vent.
  • the central axis of the windshield inner cover coincides with the central axis of the windshield cover.
  • a gas water heater includes: a casing; a flue, the flue is disposed in the casing and penetrates a top wall of the casing; a burner, a a burner disposed in the outer casing and located below the flue; a windshield, the windshield being a windshield according to the embodiment of the first aspect of the invention, the windshield being mounted on the outer casing Above and above the flue.
  • a gas water heater according to an embodiment of the present invention has advantages such as stable combustion, reasonable flue gas, and the like by using the windshield according to the embodiment of the first aspect of the present invention.
  • the gas water heater further includes a liner, the liner being disposed in the outer casing and the flue passing through the inner casing.
  • FIG. 1 is a schematic view showing the structure and smoke exhaust of a gas water heater without external air blowing according to an embodiment of the present invention.
  • FIG. 2 is a schematic view showing the structure and smoke exhausting of a gas water heater when there is an external air blow according to an embodiment of the present invention.
  • FIG. 3 is a perspective cross-sectional view of a draft shield in accordance with an embodiment of the present invention.
  • FIG. 4 is a plan cross-sectional view of a draft shield in accordance with an embodiment of the present invention.
  • Figure 5 is a top plan view of a draft shield in accordance with an embodiment of the present invention.
  • the outer casing 10 The outer casing 10, the inner casing 20, the flue 30, the burner 40, the windshield 50,
  • a gas water heater 1 according to an embodiment of the present invention will be described below with reference to the drawings.
  • a gas water heater 1 includes a casing 10, a flue 30, a burner 40, and a windshield 50. Further, the gas water heater 1 may be a volumetric gas water heater, that is, a gas water heater. 1 also includes a liner 20. Among them, the burner 40 may be an atmospheric burner.
  • a draft shield 50 according to an embodiment of the present invention will first be described with reference to the accompanying drawings.
  • the windshield 50 includes a windshield cover 100 and a windproof inner cover 200.
  • the windshield cover 100 is provided with a smoke inlet 110, a smoke exhaust port 120 and an exhaust air flow passage 130.
  • the smoke inlet 110 is located at the bottom of the windproof cover 100
  • the smoke outlet 120 is located at the top of the windproof cover 100
  • the exhaust flow channel 130 is located at the windproof cover.
  • the side of the 100 The windproof inner cover 200 is disposed in the windproof outer cover 100, and the windproof inner cover 200 is located at the smoke exhausting opening 120.
  • the windproof inner cover 200 is provided with a one-way flue gas outlet 210, and the windproof inner cover 200 and the windproof outer cover 100 define a smoke exhausting The flow path 220 in which the air flow can only flow out of the windproof inner cover 200 from the one-way smoke outlet 210 and cannot flow into the windproof inner cover 200 from the one-way smoke outlet 210.
  • the windproof inner cover 200 has a smoke guiding surface 230 and a wind guiding surface 240 for guiding the airflow flowing out of the windshield 50 from the one-way flue gas outlet 210 to the exhaust gas flow path 220, and the air guiding surface 240 is used for discharging the smoke
  • the flow of the flow path 220 into the windshield 50 is directed to the exhaust flow path 130.
  • the inner liner 20 is disposed inside the outer casing 10.
  • the flue 30 is disposed within the outer casing 10 and extends through the inner wall of the inner casing 20 and the outer casing 10.
  • the burner 40 is disposed within the outer casing 10 and below the flue 30.
  • the windshield 50 is mounted on the outer top wall surface of the outer casing 10 and the windshield 50 is located above the flue 30.
  • the top of the flue 30 is in communication with the smoke inlet 110 of the draft shield 50, which is defined by the windshield 100 and the outer top wall of the outer casing 10.
  • the flue gas generated by the burner 40 rises to the shroud 160 through the flue 30, and a part of the flue gas flows out through the one-way flue gas outlet 210 on the windproof inner cover 200.
  • the smoke surface 230 is guided to the exhaust flow path 220 and discharged from the exhaust flow path 220, and another portion of the flue gas is directly discharged through the exhaust flow path 220.
  • the external wind is blown down from the exhaust flow path 220, and mixed with the flue gas flowing into the exhaust flow path 220 through the one-way flue gas outlet 210, on the wind guiding surface. Guided by 240, it flows to the exhaust passage 130 and is discharged from the exhaust passage 130 to prevent external wind from blowing toward the burner 40 along the flue 30, thereby avoiding the influence on the combustion conditions in the case of external blowing.
  • the windshield 50 is provided with a unidirectional flue gas outlet 210, an exhaust air flow path 130, and a smoke exhaust flow path 220, and is provided for guiding the airflow flowing out of the windshield 50 from the one-way flue gas outlet 210 to the exhaust gas.
  • the smoke guiding surface 230 of the flow path 220 and the air flow for flowing the exhaust air flow path 220 into the windshield 50 are guided to the air guiding surface 240 of the exhaust air flow path 130, so that the flue gas can be discharged from the exhaust gas flow path 220 when there is no external air blowing.
  • the mixed flue gas can be discharged from the exhaust air flow passage 130 when there is an external air blow, so that the influence of the external air blow on the combustion working condition can be reduced, and the purpose of stable combustion and reasonable flue gas can be achieved.
  • the gas water heater 1 according to the embodiment of the present invention has advantages such as stable combustion, reasonable flue gas, and the like by using the windshield 50 according to the above embodiment of the present invention.
  • a windshield 50 according to an embodiment of the present invention will now be described with reference to the accompanying drawings.
  • the windshield 50 includes a windshield cover 100 and a windproof inner cover 200.
  • the windshield cover 100 includes a cover body 140 and a strut 150.
  • the outer cover body 140 has a circular cross section, and the upper end of the outer cover body 140 is open to form a smoke exhaust port 120.
  • the lower end of the outer cover body 140 is open to form the smoke inlet 110, and the outer cover body 140 and the windproof inner cover 200 define a smoke exhaust flow. Road 220.
  • the pillar 150 is coupled to the lower circumference of the outer casing 140 to form an exhaust flow path 130 below the lower circumference of the outer casing 140 and above the top wall of the outer casing 10. Therefore, the smoke inlet 110, the smoke exhaust port 120 and the exhaust air flow passage 130 can be formed on the windproof cover 100, and the positions of the smoke inlet 110, the smoke exhaust port 120 and the exhaust air flow passage 130 are reasonably distributed to facilitate the discharge of the flue gas. .
  • the windshield cover 100 further includes a flow guiding cover 160 connected to the upper circumference of the outer cover body 140, and the air guiding cover 160 is a ring shape disposed around the exhaust vent 120.
  • the flue gas discharged from the exhaust flow passage 220 is emptied under the guidance of the shroud 160 to prevent the exhausted flue gas from spreading.
  • the cross-sectional area of the inner space of the outer cover body 140 is gradually increased from top to bottom.
  • the outer cover body 140 may be generally in the shape of a truncated cone.
  • the upward discharge of the gas facilitates the mixing of the flue gas to the exhaust runner 130 when there is an external blow.
  • the plurality of pillars 150 are disposed at equal intervals along the circumferential direction of the outer casing 140, and the lower ends of the plurality of pillars 150 are respectively installed.
  • the windshield inner cover 200 includes an inner shroud body 250 and a windshield 260.
  • a smoke exhaust passage 220 is defined between the outer side surface of the inner cover body 250 and the inner side surface of the outer cover body 140.
  • the inner cover body 250 is provided with a through hole, and the upper surface of the inner cover body 250 (also referred to as an outer side surface) is formed.
  • Windshield 260 is located at The inner cover body 250 is located above the through hole, and the windshield 260 partially blocks the through hole to form a one-way flue gas outlet 210 facing the exhaust flow path 220 (ie, facing the outer cover body 140), the windshield
  • the inner surface of 260 constitutes a smoke guide surface 230.
  • the one-way flue gas outlet 210, the smoke guiding surface 230 and the air guiding surface 240 can be formed on the windproof inner cover 200, and in the case of external blowing, the external wind cannot be singular due to the shielding of the windshield 260.
  • the windshield 50 is introduced into the flue gas outlet 210, and can only flow back into the windshield 50 from the exhaust gas flow path 220, and is guided to the exhaust air flow path 130 by the air guiding surface 240.
  • the upper surface of the inner cover body 250 extends obliquely downward from the center to the outer periphery.
  • the inner cover body 250 may be substantially conical, of course, the inner cover body 250
  • the top can be a circular transition. This can facilitate the guiding of the flue gas and the wind by the inner cover body 250.
  • the plurality of through holes are disposed along the circumferential direction of the inner cover 250, and the windshield 260 is plural and located above the plurality of through holes, thereby forming a plurality of one-way flue gas outlets. 210 and a plurality of air guiding surfaces 240, thereby improving the efficiency of exhausting smoke.
  • the central axis of the windshield inner cover 200 coincides with the central axis of the windshield cover 100, that is, the central axis of the inner shroud 250 coincides with the central axis of the outer shroud 140.
  • the exhaust gas flow path 220 is an annular shape extending in the circumferential direction of the windshield 50 and the flow area at the same is equal.
  • the windshield cover 100 and the windshield inner cover 200 are separated by a plurality of ribs 300 disposed along the circumferential direction of the exhaust vent 120.
  • each rib 300 is disposed obliquely with respect to the horizontal direction, the upper end of the rib 300 is connected to the upper peripheral edge of the shroud 160, and the lower end of the rib 300 is connected to the outer peripheral edge of the inner cover 250.
  • first and second are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated.
  • features defining “first” and “second” may include one or more of the features either explicitly or implicitly.
  • the meaning of "a plurality” is at least two, such as two, three, etc., unless specifically defined otherwise.
  • the terms “installation”, “connected”, “connected”, “fixed” and the like shall be understood broadly, and may be either a fixed connection or a detachable connection, unless explicitly stated and defined otherwise. , or integrated; can be mechanical connection, or electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium, can be two The internal communication of the components or the interaction of the two components.
  • installation can be understood on a case-by-case basis.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Housings, Intake/Discharge, And Installation Of Fluid Heaters (AREA)

Abstract

Provided is a windshield (50) and a gas water heater (1) having the same, the windshield (50) comprising: a windshield cover (100), provided with a smoke inlet (110), a smoke outlet (120) and an exhaust air duct (130); a windshield inner cover (200) which is disposed in the windshield cover (100) and located at the smoke outlet (120). A one-way smoke outlet (210) is arranged on the windshield inner cover (200), and a smoke exhaust duct (220) is defined between the windshield inner cover (200) and the windshield cover (100). The wind shield (200) has a smoke guide surface (230) for directing the airflow, which flows out of the windshield (50) via the one-way smoke outlet (210), to the smoke exhaust duct (220), and an air guide surface (240) for guiding the airflow, which flows into the windshield (50) via the smoke exhaust passage (220), to the exhaust air duct (130).

Description

防风罩和具有其的燃气热水器Windshield and gas water heater with same 技术领域Technical field
本发明涉及电器制造技术领域,具体而言,涉及一种防风罩和具有所述防风罩的燃气热水器。The present invention relates to the field of electrical appliance manufacturing technology, and in particular to a windshield and a gas water heater having the windshield.
背景技术Background technique
相关技术中的容积式燃气热水器,为了方便排烟,燃烧器通常设置在烟道下方,这样当外部有风时,即外吹风时,外部的风会在烟道内形成一定流速的下降气流,该下降气流顺着烟道吹向燃烧器,影响燃烧工况,容易导致火焰熄灭、回火和火焰超出燃烧室界限等问题,且容易造成烟气排放超标。In the volumetric gas water heater of the related art, in order to facilitate the exhausting of smoke, the burner is usually disposed under the flue so that when there is wind outside, that is, when the air is blown outside, the external wind will form a descending airflow of a certain flow velocity in the flue. The descending airflow blows along the flue to the burner, affecting the combustion conditions, easily leading to flame extinction, tempering and flames exceeding the boundary of the combustion chamber, and easily causing excessive emissions of flue gas.
发明内容Summary of the invention
本发明旨在至少在一定程度上解决相关技术中的上述技术问题之一。为此,本发明提出一种防风罩,该防风罩能够减小外吹风时对燃烧工况的影响,达到稳定燃烧、烟气合理的目的。The present invention aims to solve at least one of the above technical problems in the related art to some extent. To this end, the present invention provides a windshield that can reduce the influence of the external air blow on the combustion condition, and achieve the purpose of stable combustion and reasonable smoke.
本发明还提出一种具有所述防风罩的燃气热水器。The invention also proposes a gas water heater having the windshield.
根据本发明的第一方面的实施例提出一种防风罩,所述防风罩包括:防风外罩,所述防风外罩上设有进烟口、排烟口和排风流道;防风内罩,所述防风内罩设在所述防风外罩内且位于所述排烟口处,所述防风内罩上设有单向烟气出口且所述防风内罩与所述防风外罩之间限定出排烟流道,所述防风内罩具有用于将由所述单向烟气出口流出所述防风罩的气流导向所述排烟流道的导烟面和用于将由所述排烟流道流入所述防风罩的气流导向所述排风流道的导风面。According to an embodiment of the first aspect of the present invention, a windshield is provided, the windshield cover includes: a windproof cover, the windshield cover is provided with a smoke inlet, a smoke exhaust port and an exhaust air flow passage; and a windproof inner cover, a windproof inner cover is disposed in the windproof cover and located at the exhaust vent, wherein the windproof inner cover is provided with a one-way flue gas outlet, and the windproof inner cover and the windproof cover define a smoke exhaust flow a windproof inner cover having a smoke guiding surface for guiding an airflow flowing out of the windshield from the one-way flue gas outlet to the exhaust gas flow path and for flowing the windproof flow into the windproof passage The air flow of the hood is directed to the air guiding surface of the exhaust air flow path.
根据本发明实施例的防风罩能够减小外吹风时对燃烧工况的影响,达到稳定燃烧、烟气合理的目的。The windshield according to the embodiment of the invention can reduce the influence on the combustion condition when the outer air blows, and achieve the purpose of stable combustion and reasonable smoke.
另外,根据本发明实施例的防风罩还可以具有如下附加的技术特征:In addition, the windshield according to an embodiment of the present invention may further have the following additional technical features:
根据本发明的一个实施例,所述防风外罩包括:外罩体,所述外罩体的上端敞开以形成所述排烟口,所述外罩体的下端敞开以形成所述进烟口,所述外罩体与所述防风内罩之间限定出所述排烟流道;支柱,所述支柱连接所述外罩体的下周沿上以在所述外罩体的下周沿的下方形成所述排风流道。 According to an embodiment of the present invention, the windshield cover includes: an outer cover body, an upper end of the outer cover body is open to form the exhaust vent, and a lower end of the outer cover is open to form the smoke inlet, the cover The exhaust flow passage is defined between the body and the windproof inner cover; the pillar is connected to a lower circumference of the outer cover to form the exhaust flow below a lower circumference of the outer cover Road.
根据本发明的一个实施例,所述防风外罩还包括:导流罩,所述导流罩连接在所述外罩体的上周沿且围绕所述排烟口设置。According to an embodiment of the present invention, the windshield cover further includes: a shroud attached to an upper circumference of the outer casing and disposed around the exhaust vent.
根据本发明的一个实施例,所述外罩体的内部空间的横截面积由上至下逐渐增大。According to an embodiment of the present invention, the cross-sectional area of the inner space of the outer cover gradually increases from top to bottom.
根据本发明的一个实施例,所述支柱为多个且沿所述外罩体的周向间隔设置。According to an embodiment of the invention, the struts are plural and are spaced apart along the circumference of the outer casing.
根据本发明的一个实施例,所述防风内罩包括:内罩体,所述内罩体与所述防风外罩限定出所述排烟流道,所述内罩体上设有通孔,所述内罩体的上表面构成所述导风面;挡风罩,所述挡风罩设在所述内罩体上且位于所述通孔上方,所述挡风罩通过部分遮挡所述通孔以形成朝向所述排烟流道的单相烟气出口,所述挡风罩的内表面构成所述导烟面。According to an embodiment of the present invention, the windproof inner cover includes: an inner cover body, the inner cover body and the windproof outer cover define the exhaust flow passage, and the inner cover body is provided with a through hole, The upper surface of the inner cover body constitutes the air guiding surface; a windshield disposed on the inner cover body and located above the through hole, the windshield partially blocking the through hole The holes form a single-phase flue gas outlet toward the exhaust flow path, and an inner surface of the windshield constitutes the smoke guiding surface.
根据本发明的一个实施例,所述内罩体的上表面由中心处向外周缘处向下倾斜延伸。According to an embodiment of the invention, the upper surface of the inner cover body extends obliquely downward from the center to the outer periphery.
根据本发明的一个实施例,所述通孔为多个且沿所述内罩体的周向间隔设置,所述挡风罩为多个且分别位于多个所述通孔上方。According to an embodiment of the invention, the through holes are plural and are disposed along a circumferential interval of the inner cover body, and the windshield is a plurality of and respectively located above the plurality of through holes.
根据本发明的一个实施例,所述防风外罩和所述防风内罩通过沿所述排烟口的周向间隔设置的多个筋条相连。According to an embodiment of the invention, the windshield cover and the windshield inner cover are connected by a plurality of ribs spaced along the circumferential direction of the exhaust vent.
根据本发明的一个实施例,所述防风内罩的中心轴线与所述防风外罩的中心轴线重合。According to an embodiment of the invention, the central axis of the windshield inner cover coincides with the central axis of the windshield cover.
根据本发明的第二方面的实施例提出一种燃气热水器,所述燃气热水器包括:外壳;烟道,所述烟道设在所述外壳内且贯通所述外壳的顶壁;燃烧器,所述燃烧器设在所述外壳内且位于所述烟道下方;防风罩,所述防风罩为根据本发明的第一方面的实施例所述的防风罩,所述防风罩安装在所述外壳上且位于所述烟道上方。According to an embodiment of the second aspect of the present invention, a gas water heater includes: a casing; a flue, the flue is disposed in the casing and penetrates a top wall of the casing; a burner, a a burner disposed in the outer casing and located below the flue; a windshield, the windshield being a windshield according to the embodiment of the first aspect of the invention, the windshield being mounted on the outer casing Above and above the flue.
根据本发明实施例的燃气热水器,通过利用根据本发明的第一方面的实施例所述的防风罩,具有燃烧稳定、烟气合理等优点。A gas water heater according to an embodiment of the present invention has advantages such as stable combustion, reasonable flue gas, and the like by using the windshield according to the embodiment of the first aspect of the present invention.
根据本发明的一个实施例,所述燃气热水器还包括:内胆,所述内胆设在所述外壳内且所述烟道穿过所述内胆。According to an embodiment of the present invention, the gas water heater further includes a liner, the liner being disposed in the outer casing and the flue passing through the inner casing.
附图说明DRAWINGS
图1是根据本发明实施例的燃气热水器在无外吹风时的结构及排烟示意图。BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a schematic view showing the structure and smoke exhaust of a gas water heater without external air blowing according to an embodiment of the present invention.
图2是根据本发明实施例的燃气热水器在有外吹风时的结构及排烟示意图。2 is a schematic view showing the structure and smoke exhausting of a gas water heater when there is an external air blow according to an embodiment of the present invention.
图3是根据本发明实施例的防风罩的立体剖视图。3 is a perspective cross-sectional view of a draft shield in accordance with an embodiment of the present invention.
图4是根据本发明实施例的防风罩的平面剖视图。4 is a plan cross-sectional view of a draft shield in accordance with an embodiment of the present invention.
图5是根据本发明实施例的防风罩的俯视图。Figure 5 is a top plan view of a draft shield in accordance with an embodiment of the present invention.
附图标记:Reference mark:
燃气热水器1、 Gas water heater 1,
外壳10、内胆20、烟道30、燃烧器40、防风罩50、 The outer casing 10, the inner casing 20, the flue 30, the burner 40, the windshield 50,
防风外罩100、进烟口110、排烟口120、排风流道130、外罩体140、支柱150、导流罩160、 Windproof cover 100, smoke inlet 110, exhaust vent 120, exhaust runner 130, outer cover 140, struts 150, shroud 160,
防风内罩200、单向烟气出口210、排烟流道220、导烟面230、导风面240、内罩体250、挡风罩260、The windproof inner cover 200, the one-way flue gas outlet 210, the exhaust gas flow path 220, the smoke guiding surface 230, the air guiding surface 240, the inner cover body 250, the windshield 260,
筋条300。 Rib 300.
具体实施方式detailed description
下面详细描述本发明的实施例,所述实施例的示例在附图中示出,其中自始至终相同或类似的标号表示相同或类似的元件或具有相同或类似功能的元件。下面通过参考附图描述的实施例是示例性的,旨在用于解释本发明,而不能理解为对本发明的限制。The embodiments of the present invention are described in detail below, and the examples of the embodiments are illustrated in the drawings, wherein the same or similar reference numerals are used to refer to the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the drawings are intended to be illustrative of the invention and are not to be construed as limiting.
下面参考附图描述根据本发明实施例的燃气热水器1。A gas water heater 1 according to an embodiment of the present invention will be described below with reference to the drawings.
如图1和图2所示,根据本发明实施例的燃气热水器1包括外壳10、烟道30、燃烧器40和防风罩50,进一步地,燃气热水器1可以为容积式燃气热水器,即燃气热水器1还包括内胆20。其中,燃烧器40可以为大气式燃烧器。As shown in FIG. 1 and FIG. 2, a gas water heater 1 according to an embodiment of the present invention includes a casing 10, a flue 30, a burner 40, and a windshield 50. Further, the gas water heater 1 may be a volumetric gas water heater, that is, a gas water heater. 1 also includes a liner 20. Among them, the burner 40 may be an atmospheric burner.
首先参考附图描述根据本发明实施例的防风罩50。A draft shield 50 according to an embodiment of the present invention will first be described with reference to the accompanying drawings.
如图1-图5所示,根据本发明实施例的防风罩50包括防风外罩100和防风内罩200。As shown in FIGS. 1 to 5, the windshield 50 according to an embodiment of the present invention includes a windshield cover 100 and a windproof inner cover 200.
防风外罩100上设有进烟口110、排烟口120和排风流道130,进烟口110位于防风外罩100的底部,排烟口120位于防风外罩100的顶部,排风流道130位于防风外罩100的侧部。防风内罩200设在防风外罩100内且防风内罩200位于排烟口120处,防风内罩200上设有单向烟气出口210且防风内罩200与防风外罩100之间限定出排烟流道220,其中,气流仅能从单向烟气出口210流出防风内罩200而不能从单向烟气出口210流入防风内罩200。防风内罩200具有导烟面230和导风面240,导烟面230用于将由单向烟气出口210流出防风罩50的气流导向排烟流道220,导风面240用于将由排烟流道220流入防风罩50的气流导向排风流道130。The windshield cover 100 is provided with a smoke inlet 110, a smoke exhaust port 120 and an exhaust air flow passage 130. The smoke inlet 110 is located at the bottom of the windproof cover 100, the smoke outlet 120 is located at the top of the windproof cover 100, and the exhaust flow channel 130 is located at the windproof cover. The side of the 100. The windproof inner cover 200 is disposed in the windproof outer cover 100, and the windproof inner cover 200 is located at the smoke exhausting opening 120. The windproof inner cover 200 is provided with a one-way flue gas outlet 210, and the windproof inner cover 200 and the windproof outer cover 100 define a smoke exhausting The flow path 220 in which the air flow can only flow out of the windproof inner cover 200 from the one-way smoke outlet 210 and cannot flow into the windproof inner cover 200 from the one-way smoke outlet 210. The windproof inner cover 200 has a smoke guiding surface 230 and a wind guiding surface 240 for guiding the airflow flowing out of the windshield 50 from the one-way flue gas outlet 210 to the exhaust gas flow path 220, and the air guiding surface 240 is used for discharging the smoke The flow of the flow path 220 into the windshield 50 is directed to the exhaust flow path 130.
在根据本发明实施例的燃气热水器1中,内胆20设在外壳10内。烟道30设在外壳10内且贯通内胆20和外壳10的顶壁。燃烧器40设在外壳10内且位于烟道30下方。防风罩50安装在外壳10的外顶壁面上且防风罩50位于烟道30上方。烟道30的顶部与防风罩50的进烟口110连通,排风流道130由防风外罩100与外壳10的外顶壁面共同限定出。In the gas water heater 1 according to an embodiment of the present invention, the inner liner 20 is disposed inside the outer casing 10. The flue 30 is disposed within the outer casing 10 and extends through the inner wall of the inner casing 20 and the outer casing 10. The burner 40 is disposed within the outer casing 10 and below the flue 30. The windshield 50 is mounted on the outer top wall surface of the outer casing 10 and the windshield 50 is located above the flue 30. The top of the flue 30 is in communication with the smoke inlet 110 of the draft shield 50, which is defined by the windshield 100 and the outer top wall of the outer casing 10.
下面参考附图描述根据本发明实施例的防风罩50的排烟过程。The smoke exhausting process of the windshield 50 according to an embodiment of the present invention will be described below with reference to the drawings.
如图1所示,当无外吹风时,燃烧器40产生的烟气通过烟道30上升至导流罩160,一部分烟气通过防风内罩200上的单向烟气出口210流出,在导烟面230的引导下流向排烟流道220,并从排烟流道220排出,另一部分烟气直接通过排烟流道220排出。 As shown in FIG. 1, when there is no external air blow, the flue gas generated by the burner 40 rises to the shroud 160 through the flue 30, and a part of the flue gas flows out through the one-way flue gas outlet 210 on the windproof inner cover 200. The smoke surface 230 is guided to the exhaust flow path 220 and discharged from the exhaust flow path 220, and another portion of the flue gas is directly discharged through the exhaust flow path 220.
如图2所示,在有外吹风情况下,外部的风从排烟流道220倒吹下来,与通过单向烟气出口210流向进入排烟流道220的烟气混合,在导风面240的引导下流向排风流道130,并从排风流道130排出,防止外部的风顺着烟道30吹向燃烧器40,从而避免在有外吹风的状况下对燃烧工况的影响。As shown in FIG. 2, in the case of external blowing, the external wind is blown down from the exhaust flow path 220, and mixed with the flue gas flowing into the exhaust flow path 220 through the one-way flue gas outlet 210, on the wind guiding surface. Guided by 240, it flows to the exhaust passage 130 and is discharged from the exhaust passage 130 to prevent external wind from blowing toward the burner 40 along the flue 30, thereby avoiding the influence on the combustion conditions in the case of external blowing.
根据本发明实施例的防风罩50,通过设置单向烟气出口210、排风流道130和排烟流道220,且设置用于将由单向烟气出口210流出防风罩50的气流导向排烟流道220的导烟面230和用于将由排烟流道220流入防风罩50的气流导向排风流道130的导风面240,这样在无外吹风时烟气可以从排烟流道220排出,而在有外吹风时混合烟气可以从排风流道130排出,从而能够减小外吹风时对燃烧工况的影响,达到稳定燃烧、烟气合理的目的。The windshield 50 according to the embodiment of the present invention is provided with a unidirectional flue gas outlet 210, an exhaust air flow path 130, and a smoke exhaust flow path 220, and is provided for guiding the airflow flowing out of the windshield 50 from the one-way flue gas outlet 210 to the exhaust gas. The smoke guiding surface 230 of the flow path 220 and the air flow for flowing the exhaust air flow path 220 into the windshield 50 are guided to the air guiding surface 240 of the exhaust air flow path 130, so that the flue gas can be discharged from the exhaust gas flow path 220 when there is no external air blowing. The mixed flue gas can be discharged from the exhaust air flow passage 130 when there is an external air blow, so that the influence of the external air blow on the combustion working condition can be reduced, and the purpose of stable combustion and reasonable flue gas can be achieved.
根据本发明实施例的燃气热水器1,通过利用根据本发明上述实施例的防风罩50,具有燃烧稳定、烟气合理等优点。The gas water heater 1 according to the embodiment of the present invention has advantages such as stable combustion, reasonable flue gas, and the like by using the windshield 50 according to the above embodiment of the present invention.
下面参考附图描述根据本发明具体实施例的防风罩50。A windshield 50 according to an embodiment of the present invention will now be described with reference to the accompanying drawings.
如图1-图5所示,根据本发明实施例的防风罩50包括防风外罩100和防风内罩200。As shown in FIGS. 1 to 5, the windshield 50 according to an embodiment of the present invention includes a windshield cover 100 and a windproof inner cover 200.
在本发明的一些具体实施例中,如图3-图5所示,防风外罩100包括外罩体140和支柱150。In some embodiments of the present invention, as shown in FIGS. 3-5, the windshield cover 100 includes a cover body 140 and a strut 150.
外罩体140的横截面为环形,外罩体140的上端敞开以形成排烟口120,外罩体140的下端敞开以形成进烟口110,外罩体140与防风内罩200之间限定出排烟流道220。支柱150连接外罩体140的下周沿上以在外罩体140的下周沿的下方以及外壳10的顶壁的上方形成排风流道130。由此可以在防风外罩100上形成进烟口110、排烟口120和排风流道130,且进烟口110、排烟口120和排风流道130的位置合理分布以便于烟气的引导排放。The outer cover body 140 has a circular cross section, and the upper end of the outer cover body 140 is open to form a smoke exhaust port 120. The lower end of the outer cover body 140 is open to form the smoke inlet 110, and the outer cover body 140 and the windproof inner cover 200 define a smoke exhaust flow. Road 220. The pillar 150 is coupled to the lower circumference of the outer casing 140 to form an exhaust flow path 130 below the lower circumference of the outer casing 140 and above the top wall of the outer casing 10. Therefore, the smoke inlet 110, the smoke exhaust port 120 and the exhaust air flow passage 130 can be formed on the windproof cover 100, and the positions of the smoke inlet 110, the smoke exhaust port 120 and the exhaust air flow passage 130 are reasonably distributed to facilitate the discharge of the flue gas. .
进一步地,如图3-图5所示,防风外罩100还包括导流罩160,导流罩160连接在外罩体140的上周沿,导流罩160为围绕排烟口120设置的环形,由排烟流道220排出的烟气在导流罩160的引导下排上上空,避免了排出的烟气扩散。Further, as shown in FIG. 3 to FIG. 5, the windshield cover 100 further includes a flow guiding cover 160 connected to the upper circumference of the outer cover body 140, and the air guiding cover 160 is a ring shape disposed around the exhaust vent 120. The flue gas discharged from the exhaust flow passage 220 is emptied under the guidance of the shroud 160 to prevent the exhausted flue gas from spreading.
可选地,如图3-图5所示,外罩体140的内部空间的横截面积由上至下逐渐增大,例如,外罩体140可以大体为圆台形,一方面便于无外吹风时烟气的向上排放,另一方面便于有外吹风时将混合烟气导向排风流道130。Optionally, as shown in FIG. 3 to FIG. 5, the cross-sectional area of the inner space of the outer cover body 140 is gradually increased from top to bottom. For example, the outer cover body 140 may be generally in the shape of a truncated cone. The upward discharge of the gas, on the other hand, facilitates the mixing of the flue gas to the exhaust runner 130 when there is an external blow.
有利地,如图3-图5所示,为了提高防风罩50在外壳10上的稳定性,支柱150为多个且沿外罩体140的周向等间隔设置,多个支柱150的下端分别安装在外壳10的顶壁上。Advantageously, as shown in FIGS. 3-5, in order to improve the stability of the windshield 50 on the outer casing 10, the plurality of pillars 150 are disposed at equal intervals along the circumferential direction of the outer casing 140, and the lower ends of the plurality of pillars 150 are respectively installed. On the top wall of the outer casing 10.
在本发明的一些具体示例中,如图3-图5所示,防风内罩200包括内罩体250和挡风罩260。In some specific examples of the invention, as shown in FIGS. 3-5, the windshield inner cover 200 includes an inner shroud body 250 and a windshield 260.
内罩体250的外侧面与外罩体140的内侧面之间限定出排烟流道220,内罩体250上设有通孔,内罩体250的上表面(也可以理解为外侧面)构成导风面240。挡风罩260设在 内罩体250上且位于所述通孔上方,挡风罩260通过部分遮挡所述通孔以形成朝向排烟流道220(即朝向外罩体140)的单向烟气出口210,挡风罩260的内表面构成导烟面230。由此可以在防风内罩200上形成单向烟气出口210、导烟面230和导风面240,且在有外吹风的情况下,由于挡风罩260的遮挡,外部的风无法从单向烟气出口210进入防风罩50,只能从排烟流道220倒流入防风罩50,并被导风面240引导至排风流道130排出。A smoke exhaust passage 220 is defined between the outer side surface of the inner cover body 250 and the inner side surface of the outer cover body 140. The inner cover body 250 is provided with a through hole, and the upper surface of the inner cover body 250 (also referred to as an outer side surface) is formed. Wind guiding surface 240. Windshield 260 is located at The inner cover body 250 is located above the through hole, and the windshield 260 partially blocks the through hole to form a one-way flue gas outlet 210 facing the exhaust flow path 220 (ie, facing the outer cover body 140), the windshield The inner surface of 260 constitutes a smoke guide surface 230. Therefore, the one-way flue gas outlet 210, the smoke guiding surface 230 and the air guiding surface 240 can be formed on the windproof inner cover 200, and in the case of external blowing, the external wind cannot be singular due to the shielding of the windshield 260. The windshield 50 is introduced into the flue gas outlet 210, and can only flow back into the windshield 50 from the exhaust gas flow path 220, and is guided to the exhaust air flow path 130 by the air guiding surface 240.
可选地,如图3-图5所示,内罩体250的上表面由中心处向外周缘处向下倾斜延伸,例如,内罩体250可以大体为圆锥形,当然,内罩体250的顶部可以圆弧过渡。这样可以利于内罩体250对烟气和风的引导。Optionally, as shown in FIG. 3 to FIG. 5, the upper surface of the inner cover body 250 extends obliquely downward from the center to the outer periphery. For example, the inner cover body 250 may be substantially conical, of course, the inner cover body 250 The top can be a circular transition. This can facilitate the guiding of the flue gas and the wind by the inner cover body 250.
其中,所述通孔为多个且沿内罩体250的周向间隔设置,挡风罩260为多个且分别位于多个所述通孔上方,由此可以形成多个单向烟气出口210以及多个导风面240,进而提高排烟效率。The plurality of through holes are disposed along the circumferential direction of the inner cover 250, and the windshield 260 is plural and located above the plurality of through holes, thereby forming a plurality of one-way flue gas outlets. 210 and a plurality of air guiding surfaces 240, thereby improving the efficiency of exhausting smoke.
在本发明的一些具体示例中,如图3-图3所示,防风内罩200的中心轴线与防风外罩100的中心轴线重合,即内罩体250的中心轴线与外罩体140的中心轴线重合,排烟流道220为沿防风罩50的周向延伸的环形且处处的过流面积相等。In some specific examples of the present invention, as shown in FIGS. 3-5, the central axis of the windshield inner cover 200 coincides with the central axis of the windshield cover 100, that is, the central axis of the inner shroud 250 coincides with the central axis of the outer shroud 140. The exhaust gas flow path 220 is an annular shape extending in the circumferential direction of the windshield 50 and the flow area at the same is equal.
可选地,如图3-图5所示,为了提高防风罩50的整体结构的稳定性,防风外罩100和防风内罩200通过沿排烟口120的周向间隔设置的多个筋条300相连。具体地,每个筋条300相对于水平方向倾斜设置,筋条300的上端与导流罩160的上周沿相连,筋条300的下端与内罩体250的外周沿相连。Optionally, as shown in FIG. 3 to FIG. 5, in order to improve the stability of the overall structure of the windshield 50, the windshield cover 100 and the windshield inner cover 200 are separated by a plurality of ribs 300 disposed along the circumferential direction of the exhaust vent 120. Connected. Specifically, each rib 300 is disposed obliquely with respect to the horizontal direction, the upper end of the rib 300 is connected to the upper peripheral edge of the shroud 160, and the lower end of the rib 300 is connected to the outer peripheral edge of the inner cover 250.
根据本发明实施例的燃气热水器1的其他构成以及操作对于本领域普通技术人员而言都是已知的,这里不再详细描述。Other configurations and operations of the gas water heater 1 according to embodiments of the present invention are known to those of ordinary skill in the art and will not be described in detail herein.
在本发明的描述中,需要理解的是,术语“中心”、“纵向”、“横向”、“长度”、“宽度”、“厚度”、“上”、“下”、“前”、“后”、“左”、“右”、“竖直”、“水平”、“顶”、“底”“内”、“外”、“顺时针”、“逆时针”等指示的方位或位置关系为基于附图所示的方位或位置关系,仅是为了便于描述本发明和简化描述,而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作,因此不能理解为对本发明的限制。In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", " Orientation or position of indications such as "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc. The relationship is based on the orientation or positional relationship shown in the drawings, and is merely for the convenience of the description of the invention and the simplification of the description, and does not indicate or imply that the device or component referred to has a specific orientation, is constructed and operated in a specific orientation, and thus It is not to be understood as limiting the invention.
此外,术语“第一”、“第二”仅用于描述目的,而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量。由此,限定有“第一”、“第二”的特征可以明示或者隐含地包括一个或者更多个该特征。在本发明的描述中,“多个”的含义是至少两个,例如两个,三个等,除非另有明确具体的限定。Moreover, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, features defining "first" and "second" may include one or more of the features either explicitly or implicitly. In the description of the present invention, the meaning of "a plurality" is at least two, such as two, three, etc., unless specifically defined otherwise.
在本发明中,除非另有明确的规定和限定,术语“安装”、“相连”、“连接”、“固定”等术语应做广义理解,例如,可以是固定连接,也可以是可拆卸连接,或成一体;可以是机械连接,也可以是电连接;可以是直接相连,也可以通过中间媒介间接相连,可以是两 个元件内部的连通或两个元件的相互作用关系。对于本领域的普通技术人员而言,可以根据具体情况理解上述术语在本发明中的具体含义。In the present invention, the terms "installation", "connected", "connected", "fixed" and the like shall be understood broadly, and may be either a fixed connection or a detachable connection, unless explicitly stated and defined otherwise. , or integrated; can be mechanical connection, or electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium, can be two The internal communication of the components or the interaction of the two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood on a case-by-case basis.
在本说明书的描述中,参考术语“一个实施例”、“一些实施例”、“示例”、“具体示例”、或“一些示例”等的描述意指结合该实施例或示例描述的具体特征、结构、材料或者特点包含于本发明的至少一个实施例或示例中。在本说明书中,对上述术语的示意性表述不必须针对的是相同的实施例或示例。而且,描述的具体特征、结构、材料或者特点可以在任何的一个或多个实施例或示例中以合适的方式结合。此外,本领域的技术人员可以将本说明书中描述的不同实施例或示例进行接合和组合。In the description of the present specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" and the like means a specific feature described in connection with the embodiment or example. A structure, material or feature is included in at least one embodiment or example of the invention. In the present specification, the schematic representation of the above terms is not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. Further, various embodiments or examples described in this specification can be joined and combined by those skilled in the art.
尽管上面已经示出和描述了本发明的实施例,可以理解的是,上述实施例是示例性的,不能理解为对本发明的限制,本领域的普通技术人员在本发明的范围内可以对上述实施例进行变化、修改、替换和变型。 Although the embodiments of the present invention have been shown and described, it is understood that the above-described embodiments are illustrative and are not to be construed as limiting the scope of the invention. The embodiments are subject to variations, modifications, substitutions and variations.

Claims (12)

  1. 一种防风罩,其特征在于,包括:A windshield, comprising:
    防风外罩,所述防风外罩上设有进烟口、排烟口和排风流道;a windproof cover, wherein the windproof cover is provided with a smoke inlet, a smoke exhaust port and an exhaust air flow passage;
    防风内罩,所述防风内罩设在所述防风外罩内且位于所述排烟口处,所述防风内罩上设有单向烟气出口且所述防风内罩与所述防风外罩之间限定出排烟流道,所述防风内罩具有用于将由所述单向烟气出口流出所述防风罩的气流导向所述排烟流道的导烟面和用于将由所述排烟流道流入所述防风罩的气流导向所述排风流道的导风面。a windproof inner cover, the windproof inner cover is disposed in the windproof cover and located at the exhaust vent, the windproof inner cover is provided with a unidirectional flue gas outlet, and the windproof inner cover and the windproof outer cover Between the exhaust gas flow passages, the windproof inner cover has a smoke guiding surface for guiding the airflow flowing out of the windshield from the one-way flue gas outlet to the exhaust gas flow path, and for discharging the smoke The flow of the flow path into the windshield is directed to the air guiding surface of the exhaust flow path.
  2. 根据权利要求1所述的防风罩,其特征在于,所述防风外罩包括:The windshield of claim 1 wherein said windshield cover comprises:
    外罩体,所述外罩体的上端敞开以形成所述排烟口,所述外罩体的下端敞开以形成所述进烟口,所述外罩体与所述防风内罩之间限定出所述排烟流道;An outer cover body, an upper end of the outer cover body is open to form the exhaust vent, the lower end of the outer cover body is open to form the air inlet, and the row is defined between the outer cover and the windproof inner cover Smoke flow path;
    支柱,所述支柱连接所述外罩体的下周沿上以在所述外罩体的下周沿的下方形成所述排风流道。a post connected to a lower circumference of the outer cover to form the exhaust flow path below a lower circumference of the outer cover.
  3. 根据权利要求2所述的防风罩,其特征在于,所述防风外罩还包括:The windshield according to claim 2, wherein the windshield cover further comprises:
    导流罩,所述导流罩连接在所述外罩体的上周沿且围绕所述排烟口设置。a shroud connected to an upper circumference of the outer casing and disposed around the exhaust vent.
  4. 根据权利要求2所述的防风罩,其特征在于,所述外罩体的内部空间的横截面积由上至下逐渐增大。The draft shield according to claim 2, wherein a cross-sectional area of the inner space of the outer cover gradually increases from top to bottom.
  5. 根据权利要求2所述的防风罩,其特征在于,所述支柱为多个且沿所述外罩体的周向间隔设置。The draft shield according to claim 2, wherein the plurality of struts are provided at a plurality of intervals along the circumferential direction of the outer cover.
  6. 根据权利要求1所述的防风罩,其特征在于,所述防风内罩包括:The windshield of claim 1 wherein said windshield inner cover comprises:
    内罩体,所述内罩体与所述防风外罩限定出所述排烟流道,所述内罩体上设有通孔,所述内罩体的上表面构成所述导风面;An inner cover body, the inner cover body and the windproof outer cover define the exhaust flow passage, the inner cover body is provided with a through hole, and an upper surface of the inner cover body constitutes the air guiding surface;
    挡风罩,所述挡风罩设在所述内罩体上且位于所述通孔上方,所述挡风罩通过部分遮挡所述通孔以形成朝向所述排烟流道的单相烟气出口,所述挡风罩的内表面构成所述导烟面。a windshield disposed on the inner cover body and located above the through hole, the windshield partially blocking the through hole to form a single phase smoke toward the exhaust flow path An air outlet, the inner surface of the windshield forming the smoke guiding surface.
  7. 根据权利要求6所述的防风罩,其特征在于,所述内罩体的上表面由中心处向外周缘处向下倾斜延伸。The draft shield according to claim 6, wherein an upper surface of said inner cover body extends obliquely downward from a center toward an outer periphery.
  8. 根据权利要求6所述的防风罩,其特征在于,所述通孔为多个且沿所述内罩体的周向间隔设置,所述挡风罩为多个且分别位于多个所述通孔上方。The windshield according to claim 6, wherein the plurality of through holes are disposed at intervals along a circumferential direction of the inner cover body, and the windshield is provided in plurality and respectively located in the plurality of through holes. Above the hole.
  9. 根据权利要求1-8中任一项所述的防风罩,其特征在于,所述防风外罩和所述防风内罩通过沿所述排烟口的周向间隔设置的多个筋条相连。A draft shield according to any one of claims 1 to 8, wherein the windshield cover and the windshield inner cover are connected by a plurality of ribs spaced apart in the circumferential direction of the exhaust vent.
  10. 根据权利要求1-8中任一项所述的防风罩,其特征在于,所述防风内罩的中心轴 线与所述防风外罩的中心轴线重合。The windshield according to any one of claims 1 to 8, characterized in that the central axis of the windproof inner cover The wire coincides with a central axis of the windshield.
  11. 一种燃气热水器,其特征在于,包括:A gas water heater characterized by comprising:
    外壳;shell;
    烟道,所述烟道设在所述外壳内且贯通所述外壳的顶壁;a flue, the flue is disposed in the outer casing and penetrates a top wall of the outer casing;
    燃烧器,所述燃烧器设在所述外壳内且位于所述烟道下方;a burner disposed within the outer casing and below the flue;
    防风罩,所述防风罩为根据权利要求1-10中任一项所述的防风罩,所述防风罩安装在所述外壳上且位于所述烟道上方。A windshield that is a windshield according to any one of claims 1 to 10, the windshield being mounted on the outer casing and above the flue.
  12. 根据权利要求11所述的燃气热水器,其特征在于,还包括:The gas water heater according to claim 11, further comprising:
    内胆,所述内胆设在所述外壳内且所述烟道穿过所述内胆。 a bladder, the bladder being disposed within the outer casing and the flue passing through the bladder.
PCT/CN2016/113797 2016-12-30 2016-12-30 Windshield and gas water heater having the same WO2018120151A1 (en)

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CN109114578A (en) * 2018-10-25 2019-01-01 泰山学院 A kind of chimney cap for preventing flue gas from flowing backward and to can promote indoor and outdoor air exchange
CN112212506A (en) * 2020-09-29 2021-01-12 芜湖美的厨卫电器制造有限公司 Pipe assembly and heating apparatus

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CN86202225U (en) * 1986-04-12 1987-04-22 刘美栋 All-weather wind-proof cover
TW299824U (en) * 1996-05-17 1997-03-01 Shao-Tai Zhang Air ventilating apparatus of water heater
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CN109114578B (en) * 2018-10-25 2024-02-27 泰山学院 Chimney cover capable of preventing flue gas from flowing backward and promoting indoor and outdoor air exchange
CN112212506A (en) * 2020-09-29 2021-01-12 芜湖美的厨卫电器制造有限公司 Pipe assembly and heating apparatus

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