WO2022152277A1 - Gas device and gas water heater - Google Patents

Gas device and gas water heater Download PDF

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Publication number
WO2022152277A1
WO2022152277A1 PCT/CN2022/072179 CN2022072179W WO2022152277A1 WO 2022152277 A1 WO2022152277 A1 WO 2022152277A1 CN 2022072179 W CN2022072179 W CN 2022072179W WO 2022152277 A1 WO2022152277 A1 WO 2022152277A1
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WO
WIPO (PCT)
Prior art keywords
water box
equipment according
frame body
gas
heat exchange
Prior art date
Application number
PCT/CN2022/072179
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French (fr)
Chinese (zh)
Inventor
李龙
杜小文
杨万沔
梁国荣
Original Assignee
芜湖美的厨卫电器制造有限公司
美的集团股份有限公司
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Application filed by 芜湖美的厨卫电器制造有限公司, 美的集团股份有限公司 filed Critical 芜湖美的厨卫电器制造有限公司
Publication of WO2022152277A1 publication Critical patent/WO2022152277A1/en

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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
    • 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
    • F24H9/18—Arrangement or mounting of grates or heating means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
    • F28D7/16—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged in parallel spaced relation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
    • F28F9/02—Header boxes; End plates

Definitions

  • the present application relates to the technical field of water heaters, and more particularly, to a heat exchanger, gas-fired equipment and gas-fired water heaters.
  • the heat exchanger includes a plurality of heat exchange tubes, a left water box and a right water box.
  • the heat exchange tube near the left water box or the right water box is exposed to high temperature flue gas and cold water. Under the alternating action of cold and heat, a thermal stress cycle is formed. If the welding quality is poor, the welding seam between the heat exchange tube and the left water box or the right water box may cause fatigue cracks due to thermal fatigue, resulting in water leakage.
  • the present application aims to solve one of the technical problems in the related art at least to a certain extent.
  • the present application proposes a heat exchanger, which can reduce the thermal fatigue of the heat exchange tube and avoid cracks in the weld between the heat exchange tube and the left water box or the right water box.
  • the application also proposes a water heater with the above heat exchanger, which has a long service life and is not prone to water seepage problems.
  • the heat exchanger includes: a plurality of heat exchange tubes; a left water box and a right water box, the left water box defines a left water cavity, and the right water box defines a right water box
  • the left water box is welded with the left ends of the plurality of heat exchange tubes, the left water cavity is communicated with the plurality of heat exchange tubes, and the right water box is welded with the right ends of the plurality of heat exchange tubes.
  • the right water cavity is communicated with a plurality of the heat exchange tubes, wherein one of the left water cavity and the right water cavity is connected with the water inlet pipe, and the other is connected with the water outlet pipe;
  • the air baffle is arranged on the right side of the left water box and/or the left side of the right water box, and is used to interfere with the continuous flow of smoke to the left water box and the right water box.
  • the flue gas baffle on the right side of the left water box and/or the left side of the right water box, the normal flow of flue gas is disturbed, and the continuous flow to the left water box and the right water box is avoided. It can reduce the thermal stress cycle of the heat exchange tube, avoid fatigue cracks at the weld, and improve the service life of the heat exchanger.
  • the smoke baffle is arranged in parallel with the right side of the left water box and/or the left side of the right water box, the smoke baffle is provided with a smoke barrier, and the smoke barrier is perpendicular to the right side of the left water box and the left side of the right water box.
  • the smoke barrier is attached to the right side of the left water box and/or the left side of the right water box and is connected by welding.
  • the flue gas baffle is provided with a plurality of through holes, a plurality of the heat exchangers pass through the through holes, and the side of the through holes away from the left water box or the right water box is provided with a plurality of through holes.
  • the flange is connected with the heat exchanger by welding.
  • the smoke barrier is arranged on the top of the smoke baffle.
  • the bottom of the flue gas baffle is formed with a corrugated surface.
  • a gas equipment includes: the heat exchanger of the above embodiment; a frame body, the frame body defines a combustion chamber; a burner, the burner is arranged in the combustion chamber and the The heat exchanger is oppositely arranged in the up-down direction; the fan is connected to the bottom of the frame body, and the air outlet of the fan communicates with the combustion chamber.
  • the left inner wall and the right inner wall of the frame body are spaced with a baffle plate, so as to construct an air-cooling channel, the air-cooling channel is communicated with the air outlet of the fan, and the air-cooling channel is At least a part of the air flow inside blows toward the bottom of the left water box or the right water box.
  • the bottom of the air-cooling channel has an inlet, and the top of the air-cooling channel has an outlet.
  • the inner wall of the front side and/or the inner wall of the rear side of the frame body is spaced with a baffle plate, so as to construct an air-cooling channel that communicates with the outlet of the fan, and the baffle plate has a plurality of interception plates.
  • the interception section has a transverse extension section and a longitudinal extension section, the transverse extension section extends from the inside to the outside, the start end of the longitudinal extension section is connected with the rear end of the transverse extension section, and the longitudinal extension section is folded. Extending upwardly obliquely, each of the shut-off sections has an outlet of the air-cooled channel.
  • each of the shut-off sections has the outlet formed in the laterally extending section and the opening direction is upward.
  • the inlet of the air cooling channel is lower than the combustion surface of the burner.
  • FIG. 1 is a perspective view of a heat exchanger according to some embodiments of the present application.
  • FIG. 2 is an exploded view of a gas appliance according to some embodiments of the present application.
  • FIG. 3 is a perspective view of a gas appliance according to some embodiments of the present application.
  • FIG. 4 is a perspective view of a flue gas baffle according to some embodiments of the present application.
  • FIG. 5 is a cross-sectional view of a gas appliance from an angle according to some embodiments of the present application.
  • FIG. 6 is a cross-sectional view of a gas appliance from another angle according to some embodiments of the present application.
  • Fig. 7 is the partial enlarged view of A place in Fig. 6;
  • FIG. 8 is a schematic diagram of a gas water heater according to some embodiments of the present application.
  • Heat exchanger 10 left water box 11; first end plate 111; second end plate 112; right water box 12; third end plate 121; fourth end plate 122; heat exchange tube 13;
  • flue gas baffle 40 through hole 41; flange 42; smoke barrier 43; corrugated surface 44;
  • baffle 80 blocking section 81; laterally extending section 811; longitudinally extending section 812;
  • Air cooling channel 90 Inlet 91; Outlet 92;
  • the heat exchanger 10 is used in a gas-fired equipment 100.
  • the burner 60 of the gas-fired equipment 100 burns to generate high-temperature flue gas, which passes through the heat exchanger 10 and the high-temperature gas.
  • the flue gas conducts heat exchange, so as to achieve the purpose of transferring heat to the outside, wherein the gas equipment 100 may be a water heater or a wall-hung boiler or the like.
  • the heat exchanger 10 includes a plurality of heat exchange tubes 13 , a left water box 11 , a right water box 12 and a flue gas baffle 40 .
  • the left water box 11 defines a left water cavity
  • the right water box 12 defines a right water cavity. That is, the water to be heated is introduced into and drawn out of the heat exchange tube 13 through the left water box 11 and the right water box 12 .
  • the left water box 11 may include a first end plate 111 and a second end plate 112 with convex hulls, and the first end plate 111 and the second end plate 112 butt each other to form the left water box 11, thereby forming a left water cavity.
  • the right water box 12 may also include a third end plate 121 and a fourth end plate 122 with convex hulls.
  • the third end plate 121 and the fourth end plate 122 are butted against each other to form the right water box 12, thereby forming a right water box 12. water cavity.
  • the left water box 11 is welded with the left ends of the plurality of heat exchange tubes 13 and the left water cavity is communicated with the plurality of heat exchange tubes 13
  • the right water box 12 is welded with the right ends of the plurality of heat exchange tubes 13
  • the right water cavity is connected with the plurality of heat exchange tubes 13.
  • the heat exchange tubes 13 communicate with each other. That is, the left water box 11 and the right water box 12 communicate with a plurality of heat exchange tubes 13 at the same time.
  • each group of small water cavities has a communication channel
  • each small water cavity can correspond to one or more heat exchange tubes 13, and the water flow can flow back and forth in the left and right and up and down directions, after many times After the heat exchange, it flows out from the water outlet pipe 30, thereby improving the heat exchange efficiency.
  • the heat exchange tube 13 near the left water box 11 or the right water box 12 forms a thermal stress cycle under the alternating action of high temperature flue gas and cold water. If the welding quality is poor, the welding seam between the heat exchange tube 13 and the left water box 11 or the right water box 12 may cause fatigue cracks due to thermal fatigue, resulting in water leakage.
  • FIG. 8 shows a schematic diagram of the gas water heater 1000.
  • the smoke near the left water box 11 and the right water box 12 cannot flow normally, so that the smoke cannot continue to the left water box 11 or the right water box 12. flow to form a dead zone of flue gas flow, so as to avoid continuous heat transfer to the vicinity of the left water box 11 and the right water box 12, so as to reduce the thermal stress cycle of the heat exchange tube 13 and avoid fatigue cracks at the welds. .
  • the temperature of the left and right ends of the heat exchange tube 13 can be lowered, and the thermal fatigue phenomenon of the left end or the right end of the heat exchange tube 13 can be reduced.
  • the left and right sides of the heat exchanger 10 can be provided with flue gas baffles 40 at the same time, and the flue gas baffles 40 can also be provided only on one side of the heat exchanger 10.
  • the flue gas baffles 40 are provided on The side where the heat exchanger 10 is connected to the water inlet pipe 20 .
  • the structural form and arrangement position of the smoke baffle 40 are not particularly limited.
  • the smoke baffle 40 may be a horizontal baffle or a T-shaped baffle extending along the left-right direction and connected to the left water box 11 or the right water box 12 plate, the flue gas baffle 40 can be located at the bottom, middle, top or other positions of the heat exchanger 10
  • the flue gas baffle 40 on the right side of the left water box 11 and/or the left side of the right water box 12, the normal flow of flue gas is disturbed, and the The continuous flow to the left water box 11 and the right water box 12 reduces the thermal stress cycle of the heat exchange tube 13 , avoids fatigue cracks at the welding seam, and improves the service life of the heat exchanger 10 .
  • the fume baffle 40 is arranged in parallel with the right side of the left water box 11 and/or the left side of the right water box 12 . That is to say, the flue gas baffle 40 and the left water box 11 or the right water box 12 are stacked in the left and right directions, so that the weld between the heat exchange tube 13 and the left water box 11 or the heat exchange tube 13 and the right water box 12 are welded.
  • the welded seam can be physically isolated by the flue gas baffle 40 to prevent the flue gas from directly acting on the welded seam.
  • the flue gas baffle 40 is provided with a smoke barrier 43, and the smoke barrier 43 is perpendicular to the right side of the left water box 11 and the right water box. Left side of box 12. Since the smoke is trapped in the vicinity of the left water box 11 and the right water box 12 by the smoke baffle 43 and the smoke baffle 40, it cannot flow naturally from bottom to top, so it cannot flow to the left water box 11 and the right water box.
  • High-temperature flue gas is continuously delivered near 12, so as to avoid the long-term thermal fatigue of the weld between the heat exchange tube 13 and the left water box 11 or the weld between the heat exchange tube 13 and the right water box 12 due to the action of high-temperature flue gas for a long time.
  • the "flue gas flow dead zone" means that at the beginning of the operation of the gas appliance 100, a part of the flue gas can enter the vicinity of the left water box 11 or the right water box 12, and the left water box 11 or the right water box 12 Once the nearby area is filled with flue gas, new high-temperature flue gas cannot be further input, thus forming a state where the flue gas cannot be updated.
  • the smoke barrier 43 is attached to the right side of the left water box 11 and/or the left side of the right water box 12 and connected by welding. In this way, seamless connection between the smoke barrier 43 and the left water box 11 or between the smoke barrier 43 and the right water box 12 can be achieved, avoiding between the smoke barrier 43 and the left water box 11 or between the smoke barrier 43 and the right water box 12.
  • a flue gas channel is formed between the boxes 12 , thereby effectively forming a dead zone of flue gas flow near the left water box 11 or the right water box 12 .
  • the flue gas baffle 40 is provided with a plurality of through holes 41 , and the plurality of heat exchangers 10 are provided with through holes 41 , and the through holes 41 are away from the left water box 11 or One side of the right water box 12 is provided with a flange 42, and the flange 42 is connected with the heat exchanger 10 by welding. That is, the flue gas baffle 40 is seamlessly connected with the heat exchanger 10 , so that the flue gas can be prevented from passing through the flue gas baffle 40 and acting on the welding seam between the heat exchange tube 13 and the left water box 11 or the right water box 12 . , thereby further reducing the thermal fatigue of the heat exchange tube 13 .
  • the sealed connection between the heat exchange tube 13 and the flue gas baffle 40 can also make the heat exchange tube 13 cool the flue gas baffle 40 to prevent the flue gas baffle 40 from being burnt by high temperature.
  • the smoke barrier 43 is provided on the top of the smoke baffle 40 . It can be understood that in the case of flue gas pre-cooling, condensed water is likely to be generated. If the smoke barrier 43 is arranged at the bottom of the flue gas baffle 40, the condensed water will be accumulated on the smoke barrier 43, resulting in smoke barrier. Corrosion of plate 43.
  • a corrugated surface 44 is formed at the bottom of the flue gas baffle 40 . In this way, the heat exchange efficiency between the heat exchange tube 13 and the flue gas can be improved, the flue gas baffle 40 can be prevented from being overheated and burnt out, and the service life of the flue gas baffle 40 can be improved.
  • the gas equipment 100 includes the heat exchanger 10 , the frame body 50 , the burner 60 and the fan 70 of the above-mentioned embodiment.
  • the frame body 50 defines a combustion chamber 51 .
  • the burner 60 is provided in the combustion chamber 51 and is provided opposite to the heat exchanger 10 in the up-down direction.
  • the fan 70 is connected to the bottom of the frame body 50 , and the air outlet of the fan 70 communicates with the combustion chamber 51 .
  • the fan 70 introduces the outside air into the combustion chamber to provide oxygen for the combustion of the burner 60, the high-temperature flue gas generated by the burner 60 flows from bottom to top, and the high-temperature flue gas exchanges heat with the heat exchanger 10, thereby To achieve the purpose of external heat transfer.
  • the gas equipment 100 of the embodiment of the present application includes the heat exchanger 10 with a long service life in the above embodiments, the service life of the gas equipment 100 of the embodiment of the present application is long.
  • the gas equipment 100 in the embodiment of the present application further includes a deflector 80.
  • a deflector 80 As shown in FIG. 5, the left inner wall and the right inner wall of the frame body 50 are spaced with a deflector 80, thereby forming an air cooling channel 90, The air cooling channel 90 is communicated with the air outlet of the fan 70 , and at least a part of the airflow in the air cooling channel 90 is blown toward the bottom of the left water box 11 or the right water box 12 .
  • the air cooling channel 90 introduces a part of the cold air sucked by the fan 70 into both ends of the heat exchanger 10 (near the left water box 11 and the right water box 12 ), thereby forming an air film at both ends of the heat exchanger 10, Avoid the heat of the high-temperature flue gas approaching the area of the left water box 11 or the right water box 12, thereby reducing the thermal fatigue of the heat exchange tube 13 and avoiding the welding seam between the heat exchange tube 13 and the left water box 11 or the right water box 12. Cracks are generated to prevent water seepage in the heat exchange tubes 13 .
  • the bottom of the air cooling channel 90 has an inlet 91
  • the top of the air cooling channel 90 has an outlet 92 . That is, the cold air enters from the bottom and exits from the top, and can be directly blown to both ends of the heat exchanger 10, thereby forming a low-temperature air film at both ends of the heat exchanger 10, thereby reducing the thermal fatigue of the heat exchange tubes 13 and avoiding heat exchange.
  • the welded seam between the tube 13 and the left water box 11 or the right water box 12 produces cracks to prevent water seepage in the heat exchange tube 13 .
  • the front inner wall and/or the rear inner wall of the frame body 50 is provided with a guide plate 80 at intervals, so as to construct an air cooling system that communicates with the outlet of the fan 70 .
  • the channel 90, the baffle 80 has a plurality of interception sections 81, the interception section 81 has a transverse extension section 811 and a longitudinal extension section 812, the transverse extension section 811 extends from the inside to the outside, and the start end of the longitudinal extension section 812 is connected to the transverse extension section 811.
  • the tail ends are connected, and the longitudinally extending section 812 is folded and extended upwardly and obliquely, and each intercepting section 81 has an outlet 92 .
  • the air-cooling channel 90 is divided by a plurality of interception sections 81 , and the flow is divided upward in each interception section 81 , and dispersed in the inner wall area of the deflector 80 , so that a gas film layer is always formed on the inner wall of the deflector 80 . , to prevent the heat from radiating to the outside through the deflector 80 and the frame body 50 , thereby reducing the influence of heat on the components of the gas equipment 100 .
  • each shut-off section 81 has an outlet 92 formed in the laterally extending section 811 and the opening direction is upward. Therefore, it is more favorable to form a gas film layer on the inner wall surface of the deflector 80 all the time, thereby reducing the heat radiation to the outside.
  • the inlet 91 of the air-cooling channel 90 is lower than the combustion surface of the burner 60 , so that the air temperature in the air-cooling channel 90 can be ensured to be relatively low.
  • the air source in the air cooling channel 90 is the cold air directly introduced by the fan 70 .
  • the temperature of the frame body 50 can also be lowered, so as to reduce the external heat radiation of the frame body 50 and reduce heat damage to the components of the gas equipment 100 .
  • connection In this application, unless otherwise expressly specified and limited, the terms “installation”, “connection”, “connection”, “fixation” and other terms should be understood in a broad sense, for example, it may be a fixed connection or a detachable connection , or integrally connected; it can be a mechanical connection or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or the internal communication between the two components.
  • connection connection
  • fixing and other terms should be understood in a broad sense, for example, it may be a fixed connection or a detachable connection , or integrally connected; it can be a mechanical connection or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or the internal communication between the two components.
  • the specific meanings of the above terms in this application can be understood according to specific situations.
  • a first feature "on” or “under” a second feature may include direct contact between the first and second features, or may include the first and second features Not directly but through additional features between them.
  • the first feature being “above”, “over” and “above” the second feature includes the first feature being directly above and obliquely above the second feature, or simply means that the first feature is level higher than the second feature.
  • the first feature is “below”, “below” and “beneath” the second feature includes the first feature being directly above and obliquely above the second feature, or simply means that the first feature is level less than the second feature.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)

Abstract

A heat exchanger (10) and a gas device (100). The heat exchanger comprises a plurality of heat exchange tubes (13); a left water box (11) and a right water box (12), wherein the left water box is provided with a left water cavity, the right water box is provided with a right water cavity, the left water box is welded to the left ends of the plurality of heat exchange tubes and the left water cavity is in communication with the plurality of heat exchange tubes, the right water box is welded to the right ends of the plurality of heat exchange tubes and the right water cavity is in communication with the plurality of heat exchange tubes, and one of the left water cavity and the right water cavity is connected to a water inlet tube (20), and the other is connected to a water outlet tube (30); and a flue gas baffle (40), wherein the flue gas baffle is provided on the right side of the left water box and/or on the left side of the right water box, so as to obstruct the flue gas from continuously flowing to the left water box and the right water box.

Description

燃气设备和燃气热水器Gas appliances and gas water heaters
相关申请的交叉引用CROSS-REFERENCE TO RELATED APPLICATIONS
本申请基于申请号为202120120913.2、申请日为2021年01月15日的中国专利申请“换热器和燃气设备”提出，并要求上述中国专利申请的优先权，上述中国专利申请的全部内容在此引入本申请作为参考。This application is based on the Chinese patent application "Heat Exchanger and Gas Equipment" with the application number of 202120120913.2 and the application date of January 15, 2021, and claims the priority of the above Chinese patent application. The entire content of the above Chinese patent application is hereby This application is incorporated by reference.
技术领域technical field
本申请涉及热水器技术领域，更具体地，涉及一种换热器和燃气设备和燃气热水器。The present application relates to the technical field of water heaters, and more particularly, to a heat exchanger, gas-fired equipment and gas-fired water heaters.
背景技术Background technique
相关技术中，换热器包括多个换热管、左水盒和右水盒，燃气设备长期使用的启停过程中，靠近左水盒或右水盒的换热管在高温烟气和冷水的冷热交替作用下，形成热应力循环。若焊接质量不良，换热管与左水盒或右水盒之间的焊缝可能因热疲劳而产生疲劳裂纹，导致漏水。In the related art, the heat exchanger includes a plurality of heat exchange tubes, a left water box and a right water box. During the long-term start-up and shutdown of gas equipment, the heat exchange tube near the left water box or the right water box is exposed to high temperature flue gas and cold water. Under the alternating action of cold and heat, a thermal stress cycle is formed. If the welding quality is poor, the welding seam between the heat exchange tube and the left water box or the right water box may cause fatigue cracks due to thermal fatigue, resulting in water leakage.
发明内容SUMMARY OF THE INVENTION
本申请旨在至少在一定程度上解决相关技术中的技术问题之一。The present application aims to solve one of the technical problems in the related art at least to a certain extent.
为此，本申请提出一种换热器，该换热器可以减轻换热管的热疲劳，避免换热管与左水盒或右水盒之间的焊缝出现裂缝。Therefore, the present application proposes a heat exchanger, which can reduce the thermal fatigue of the heat exchange tube and avoid cracks in the weld between the heat exchange tube and the left water box or the right water box.
本申请还提出一种具有上述换热器的热水器，该热水器的使用寿命长，不容易出现渗水问题。The application also proposes a water heater with the above heat exchanger, which has a long service life and is not prone to water seepage problems.
根据申请第一方面实施例的换热器，包括：多个换热管；左水盒和右水盒，所述左水盒构设出左水腔，所述右水盒构设出右水腔，所述左水盒与多个所述换热管的左端焊接且所述左水腔与多个所述换热管相通，所述右水盒与多个所述换热管的右端焊接且所述右水腔与多个所述换热管相通，其中，所述左水腔和右水腔的其中一个与进水管连接，另一个与出水管连接；烟气挡板，所述烟气挡板设于所述左水盒的右侧和/或右水盒的左侧，用于干扰烟气持续流向所述左水盒和所述右水盒。The heat exchanger according to the embodiment of the first aspect of the application includes: a plurality of heat exchange tubes; a left water box and a right water box, the left water box defines a left water cavity, and the right water box defines a right water box The left water box is welded with the left ends of the plurality of heat exchange tubes, the left water cavity is communicated with the plurality of heat exchange tubes, and the right water box is welded with the right ends of the plurality of heat exchange tubes. And the right water cavity is communicated with a plurality of the heat exchange tubes, wherein one of the left water cavity and the right water cavity is connected with the water inlet pipe, and the other is connected with the water outlet pipe; The air baffle is arranged on the right side of the left water box and/or the left side of the right water box, and is used to interfere with the continuous flow of smoke to the left water box and the right water box.
根据本申请实施例的换热器，通过在左水盒的右侧和/或右水盒的左侧设置烟气挡板，从而干扰烟气的正常流动，避免持续流向左水盒和右水盒，减轻换热管的热应力循环，避免焊缝处产生疲劳裂纹，提高换热器的使用寿命。According to the heat exchanger of the embodiment of the present application, by disposing the flue gas baffle on the right side of the left water box and/or the left side of the right water box, the normal flow of flue gas is disturbed, and the continuous flow to the left water box and the right water box is avoided. It can reduce the thermal stress cycle of the heat exchange tube, avoid fatigue cracks at the weld, and improve the service life of the heat exchanger.
可选地，所述烟气挡板与所述左水盒的右侧面和/或右水盒的左侧面平行设置，所述烟 气挡板设有隔烟板，所述隔烟板垂直于所述左水盒的右侧面和右水盒的左侧面。Optionally, the smoke baffle is arranged in parallel with the right side of the left water box and/or the left side of the right water box, the smoke baffle is provided with a smoke barrier, and the smoke barrier is perpendicular to the right side of the left water box and the left side of the right water box.
可选地，所述隔烟板与所述左水盒的右侧面和/或所述右水盒的左侧面贴合且通过焊接方式连接。Optionally, the smoke barrier is attached to the right side of the left water box and/or the left side of the right water box and is connected by welding.
可选地，所述烟气挡板设有多个通孔，多个所述换热器穿设所述通孔，所述通孔背离所述左水盒或右水盒的一侧设有翻边，所述翻边与所述换热器通过焊接方式连接。Optionally, the flue gas baffle is provided with a plurality of through holes, a plurality of the heat exchangers pass through the through holes, and the side of the through holes away from the left water box or the right water box is provided with a plurality of through holes. The flange is connected with the heat exchanger by welding.
可选地，所述隔烟板设于所述烟气挡板的顶部。Optionally, the smoke barrier is arranged on the top of the smoke baffle.
可选地，所述烟气挡板的底部形成有波浪面。Optionally, the bottom of the flue gas baffle is formed with a corrugated surface.
根据本申请第二方面实施例的燃气设备，包括：上述实施例的换热器；框体，所述框体限定出燃烧室；燃烧器，所述燃烧器设于所述燃烧室内与所述换热器在上下方向相对设置；风机，所述风机连接于所述框体的底部，所述风机的出风口与所述燃烧室相通。A gas equipment according to an embodiment of the second aspect of the present application includes: the heat exchanger of the above embodiment; a frame body, the frame body defines a combustion chamber; a burner, the burner is arranged in the combustion chamber and the The heat exchanger is oppositely arranged in the up-down direction; the fan is connected to the bottom of the frame body, and the air outlet of the fan communicates with the combustion chamber.
可选地，所述框体的左侧内壁和右侧内壁间隔设有导流板，从而构设出风冷通道，所述风冷通道与所述风机的出风口连通，所述风冷通道内的气流至少一部分吹向所述左水盒或右水盒的底部。Optionally, the left inner wall and the right inner wall of the frame body are spaced with a baffle plate, so as to construct an air-cooling channel, the air-cooling channel is communicated with the air outlet of the fan, and the air-cooling channel is At least a part of the air flow inside blows toward the bottom of the left water box or the right water box.
可选地，所述风冷通道的底部具有进口，所述风冷通道的顶部具有出口。Optionally, the bottom of the air-cooling channel has an inlet, and the top of the air-cooling channel has an outlet.
可选地，所述框体的前侧内壁和/或后侧内壁间隔设有导流板，从而构设出与所述风机的出口相通的风冷通道，所述导流板具有多个截流段，所述截流段具有横向延伸段和纵向延伸段，所述横向延伸段自内向外延伸，所述纵向延伸段的起始端与所述横向延伸段的尾端连接，所述纵向延伸段折向上倾斜延伸，每一个所述截流段具有所述风冷通道的出口。Optionally, the inner wall of the front side and/or the inner wall of the rear side of the frame body is spaced with a baffle plate, so as to construct an air-cooling channel that communicates with the outlet of the fan, and the baffle plate has a plurality of interception plates. The interception section has a transverse extension section and a longitudinal extension section, the transverse extension section extends from the inside to the outside, the start end of the longitudinal extension section is connected with the rear end of the transverse extension section, and the longitudinal extension section is folded. Extending upwardly obliquely, each of the shut-off sections has an outlet of the air-cooled channel.
可选地，每一个所述截流段具有所述出口形成于所述横向延伸段且开口方向向上。Optionally, each of the shut-off sections has the outlet formed in the laterally extending section and the opening direction is upward.
可选地，所述风冷通道的进口低于所述燃烧器的燃烧面。Optionally, the inlet of the air cooling channel is lower than the combustion surface of the burner.
本申请的附加方面和优点将在下面的描述中部分给出，部分将从下面的描述中变得明显，或通过本申请的实践了解到。Additional aspects and advantages of the present application will be set forth, in part, from the following description, and in part will become apparent from the following description, or may be learned by practice of the present application.
附图说明Description of drawings
图1为根据本申请一些实施例的换热器的立体图；1 is a perspective view of a heat exchanger according to some embodiments of the present application;
图2为根据本申请一些实施例的燃气设备的分解图；2 is an exploded view of a gas appliance according to some embodiments of the present application;
图3为根据本申请一些实施例的燃气设备的立体图；3 is a perspective view of a gas appliance according to some embodiments of the present application;
图4为根据本申请一些实施例的烟气挡板的立体图；4 is a perspective view of a flue gas baffle according to some embodiments of the present application;
图5为根据本申请一些实施例的燃气设备一个角度的剖视图；5 is a cross-sectional view of a gas appliance from an angle according to some embodiments of the present application;
图6为根据本申请一些实施例的燃气设备另一个角度的剖视图；6 is a cross-sectional view of a gas appliance from another angle according to some embodiments of the present application;
图7为图6中A处的局部放大图；Fig. 7 is the partial enlarged view of A place in Fig. 6;
图8为根据本申请一些实施例的燃气热水器的示意图。8 is a schematic diagram of a gas water heater according to some embodiments of the present application.
附图标记：Reference number:
燃气设备100； Gas equipment 100;
换热器10；左水盒11；第一端板111；第二端板112；右水盒12；第三端板121；第四端板122；换热管13； Heat exchanger 10; left water box 11; first end plate 111; second end plate 112; right water box 12; third end plate 121; fourth end plate 122; heat exchange tube 13;
进水管20； water inlet pipe 20;
出水管30； outlet pipe 30;
烟气挡板40；通孔41；翻边42；隔烟板43；波浪面44； flue gas baffle 40; through hole 41; flange 42; smoke barrier 43; corrugated surface 44;
框体50；燃烧室51； Frame 50; Combustion chamber 51;
燃烧器60； burner 60;
风机70； fan 70;
导流板80；截流段81；横向延伸段811；纵向延伸段812； baffle 80; blocking section 81; laterally extending section 811; longitudinally extending section 812;
风冷通道90；进口91；出口92； Air cooling channel 90; Inlet 91; Outlet 92;
燃气热水器1000。 Gas water heater 1000.
具体实施方式Detailed ways
下面详细描述本申请的实施例，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，旨在用于解释本申请，而不能理解为对本申请的限制。Embodiments of the present application are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary, and are intended to be used to explain the present application, but should not be construed as a limitation to the present application.
参照图1-图7，描述根据本申请实施例的换热器10，该换热器10用于燃气设备100，燃气设备100的燃烧器60燃烧产生高温烟气，通过换热器10与高温烟气进行换热，从而实现对外输送热量的目的，其中，燃气设备100可以为热水器或壁挂炉等。Referring to FIGS. 1-7 , the heat exchanger 10 according to the embodiment of the present application is described. The heat exchanger 10 is used in a gas-fired equipment 100. The burner 60 of the gas-fired equipment 100 burns to generate high-temperature flue gas, which passes through the heat exchanger 10 and the high-temperature gas. The flue gas conducts heat exchange, so as to achieve the purpose of transferring heat to the outside, wherein the gas equipment 100 may be a water heater or a wall-hung boiler or the like.
如图1所示，换热器10包括多个换热管13、左水盒11、右水盒12和烟气挡板40。其中，左水盒11限定出左水腔，右水盒12限定出右水腔，左水腔和右水腔的其中一个与进水管20连接，另一个与出水管30连接。也就是，通过左水盒11和右水盒12将待加热的水引入和引出换热管13。其中左水盒11可以包括具有凸包的第一端板111和第二端板112，第一端板111和第二端板112相互对接构设出左水盒11，从而形成左水腔。同样地，右水盒12也可以包括具有凸包的第三端板121和第四端板122，第三端板121和第四端板122相互对接构设出右水盒12，从而形成右水腔。As shown in FIG. 1 , the heat exchanger 10 includes a plurality of heat exchange tubes 13 , a left water box 11 , a right water box 12 and a flue gas baffle 40 . Wherein, the left water box 11 defines a left water cavity, and the right water box 12 defines a right water cavity. That is, the water to be heated is introduced into and drawn out of the heat exchange tube 13 through the left water box 11 and the right water box 12 . The left water box 11 may include a first end plate 111 and a second end plate 112 with convex hulls, and the first end plate 111 and the second end plate 112 butt each other to form the left water box 11, thereby forming a left water cavity. Similarly, the right water box 12 may also include a third end plate 121 and a fourth end plate 122 with convex hulls. The third end plate 121 and the fourth end plate 122 are butted against each other to form the right water box 12, thereby forming a right water box 12. water cavity.
具体地，左水盒11与多个换热管13的左端焊接且左水腔与多个换热管13相通，右水盒12与多个换热管13的右端焊接且右水腔与多个换热管13相通。即左水盒11和右水盒12同时与多个换热管13相通，为保证水流在不同的换热管13内循环流动，提高换热效率， 左水腔和右水腔可以被分隔成上下方向分布的多组小水腔，每组小水腔之间具有连通通道，每个小水腔可以对应一个或多个换热管13，水流可以在左右和上下方向往返流动，经过多次热交换之后，从出水管30流出，从而提高热交换效率。Specifically, the left water box 11 is welded with the left ends of the plurality of heat exchange tubes 13 and the left water cavity is communicated with the plurality of heat exchange tubes 13, the right water box 12 is welded with the right ends of the plurality of heat exchange tubes 13, and the right water cavity is connected with the plurality of heat exchange tubes 13. The heat exchange tubes 13 communicate with each other. That is, the left water box 11 and the right water box 12 communicate with a plurality of heat exchange tubes 13 at the same time. There are multiple groups of small water cavities distributed in the up and down direction, each group of small water cavities has a communication channel, each small water cavity can correspond to one or more heat exchange tubes 13, and the water flow can flow back and forth in the left and right and up and down directions, after many times After the heat exchange, it flows out from the water outlet pipe 30, thereby improving the heat exchange efficiency.
可以理解的是，燃气设备100长期使用的启停过程中，靠近左水盒11或右水盒12的换热管13在高温烟气和冷水的冷热交替作用下，形成热应力循环。若焊接质量不良，换热管13与左水盒11或右水盒12之间的焊缝可能因热疲劳而产生疲劳裂纹，导致漏水。It can be understood that, during the long-term start and stop of the gas equipment 100, the heat exchange tube 13 near the left water box 11 or the right water box 12 forms a thermal stress cycle under the alternating action of high temperature flue gas and cold water. If the welding quality is poor, the welding seam between the heat exchange tube 13 and the left water box 11 or the right water box 12 may cause fatigue cracks due to thermal fatigue, resulting in water leakage.
为干扰烟气的流动方向，避免持续流向左水盒11和右水盒12，减轻换热管13的热应力循环，避免焊缝处产生疲劳裂纹，左水盒11的右侧和/或右水盒12的左侧设有烟气挡板40，即通过烟气挡板40干扰烟气持续流向左水盒11和右水盒12。换言之，烟气挡板40在烟气的流动路径的下游进行封锁，其中，图8示出了燃气热水器1000的示意图，在燃气热水器1000启动之初，一部分烟气会填充左水盒11和右水盒12的附近，由于受到烟气挡板40的阻挡，左水盒11和右水盒12附近的烟气无法正常流动，从而使得烟气无法继续向左水盒11或右水盒12方向流动，形成烟气流动死区，如此，避免向左水盒11和右水盒12的附近区域持续输送热量，从而达到减轻换热管13的热应力循环，避免焊缝处产生疲劳裂纹的目的。In order to interfere with the flow direction of the flue gas, avoid continuous flow to the left water box 11 and the right water box 12, reduce the thermal stress cycle of the heat exchange tube 13, and avoid fatigue cracks at the welding seam, the right and/or right side of the left water box 11 A smoke baffle 40 is provided on the left side of the water box 12 , that is, the continuous flow of the smoke to the left water box 11 and the right water box 12 is disturbed by the smoke baffle 40 . In other words, the flue gas baffle 40 is blocked downstream of the flow path of flue gas, wherein FIG. 8 shows a schematic diagram of the gas water heater 1000. When the gas water heater 1000 is started, a part of the flue gas will fill the left water box 11 and the right water heater 1000. Near the water box 12, due to the blocking by the smoke baffle 40, the smoke near the left water box 11 and the right water box 12 cannot flow normally, so that the smoke cannot continue to the left water box 11 or the right water box 12. flow to form a dead zone of flue gas flow, so as to avoid continuous heat transfer to the vicinity of the left water box 11 and the right water box 12, so as to reduce the thermal stress cycle of the heat exchange tube 13 and avoid fatigue cracks at the welds. .
此外，由于左水盒11和右水盒12内水不断地循环流动，因此，可以对换热管13的的左端和右端进行降温，减轻换热管13的左端或右端的热疲劳现象。In addition, since the water in the left water box 11 and the right water box 12 continuously circulates, the temperature of the left and right ends of the heat exchange tube 13 can be lowered, and the thermal fatigue phenomenon of the left end or the right end of the heat exchange tube 13 can be reduced.
可以理解的是，换热器10的左右侧可以同时设有烟气挡板40，烟气挡板40也可以仅设置于换热器10的一侧，通常地，烟气挡板40设于换热器10与进水管20连接的一侧。而且烟气挡板40的结构形式及布置位置并不特别限定，例如，烟气挡板40可以为沿左右方向延伸连接于左水盒11或右水盒12上的水平挡板或T型挡板，烟气挡板40可以位于换热器10的底部、中部、顶部或其他位置It can be understood that the left and right sides of the heat exchanger 10 can be provided with flue gas baffles 40 at the same time, and the flue gas baffles 40 can also be provided only on one side of the heat exchanger 10. Generally, the flue gas baffles 40 are provided on The side where the heat exchanger 10 is connected to the water inlet pipe 20 . Moreover, the structural form and arrangement position of the smoke baffle 40 are not particularly limited. For example, the smoke baffle 40 may be a horizontal baffle or a T-shaped baffle extending along the left-right direction and connected to the left water box 11 or the right water box 12 plate, the flue gas baffle 40 can be located at the bottom, middle, top or other positions of the heat exchanger 10
简言之，根据本申请实施例的换热器10，通过在左水盒11的右侧和/或右水盒12的左侧设置烟气挡板40，从而干扰烟气的正常流动，避免持续流向左水盒11和右水盒12，减轻换热管13的热应力循环，避免焊缝处产生疲劳裂纹，提高换热器10的使用寿命。In short, according to the heat exchanger 10 of the embodiment of the present application, by disposing the flue gas baffle 40 on the right side of the left water box 11 and/or the left side of the right water box 12, the normal flow of flue gas is disturbed, and the The continuous flow to the left water box 11 and the right water box 12 reduces the thermal stress cycle of the heat exchange tube 13 , avoids fatigue cracks at the welding seam, and improves the service life of the heat exchanger 10 .
在本申请的一些实施例中，如图1和图2所示，烟气挡板40与左水盒11的右侧面和/或右水盒12的左侧面平行设置。也就是说，烟气挡板40与左水盒11或右水盒12在左右方向叠设，从而换热管13与左水盒11之间的焊缝或换热管13与右水盒12的焊缝可以被烟气挡板40在物理上进行隔离，避免烟气直接作用于焊缝。In some embodiments of the present application, as shown in FIGS. 1 and 2 , the fume baffle 40 is arranged in parallel with the right side of the left water box 11 and/or the left side of the right water box 12 . That is to say, the flue gas baffle 40 and the left water box 11 or the right water box 12 are stacked in the left and right directions, so that the weld between the heat exchange tube 13 and the left water box 11 or the heat exchange tube 13 and the right water box 12 are welded. The welded seam can be physically isolated by the flue gas baffle 40 to prevent the flue gas from directly acting on the welded seam.
为了在左水盒11和右水盒12所在的区域形成烟气流动死区，烟气挡板40设有隔烟板43，隔烟板43垂直于左水盒11的右侧面和右水盒12的左侧面。由于烟气被隔烟板43和烟气挡板40滞留在左水盒11和右水盒12的附近区域，无法自下向上自然流动，因此，也 就无法向左水盒11和右水盒12附近持续输送高温烟气，从而避免换热管13与左水盒11之间的焊缝或换热管13与右水盒12之间的焊缝长期受高温烟气的作用而产生热疲劳。需要说明的是，“烟气流动死区”指的是在燃气设备100的工作之初，一部分烟气可以进入左水盒11或右水盒12的附近，左水盒11或右水盒12的附近一旦被烟气充盈，就无法进一步输入新的高温烟气，从而形成一种烟气无法更新的状态。In order to form a dead zone of flue gas flow in the area where the left water box 11 and the right water box 12 are located, the flue gas baffle 40 is provided with a smoke barrier 43, and the smoke barrier 43 is perpendicular to the right side of the left water box 11 and the right water box. Left side of box 12. Since the smoke is trapped in the vicinity of the left water box 11 and the right water box 12 by the smoke baffle 43 and the smoke baffle 40, it cannot flow naturally from bottom to top, so it cannot flow to the left water box 11 and the right water box. High-temperature flue gas is continuously delivered near 12, so as to avoid the long-term thermal fatigue of the weld between the heat exchange tube 13 and the left water box 11 or the weld between the heat exchange tube 13 and the right water box 12 due to the action of high-temperature flue gas for a long time. . It should be noted that the "flue gas flow dead zone" means that at the beginning of the operation of the gas appliance 100, a part of the flue gas can enter the vicinity of the left water box 11 or the right water box 12, and the left water box 11 or the right water box 12 Once the nearby area is filled with flue gas, new high-temperature flue gas cannot be further input, thus forming a state where the flue gas cannot be updated.
进一步可选实施例中，隔烟板43与左水盒11的右侧面和/或右水盒12的左侧面贴合且通过焊接方式连接。由此，使得隔烟板43与左水盒11之间或隔烟板43与右水盒12之间可以无缝连接，避免隔烟板43与左水盒11之间或隔烟板43与右水盒12之间形成烟气通道，从而有效地在左水盒11附近或右水盒12附近形成烟气流动死区。In a further optional embodiment, the smoke barrier 43 is attached to the right side of the left water box 11 and/or the left side of the right water box 12 and connected by welding. In this way, seamless connection between the smoke barrier 43 and the left water box 11 or between the smoke barrier 43 and the right water box 12 can be achieved, avoiding between the smoke barrier 43 and the left water box 11 or between the smoke barrier 43 and the right water box 12. A flue gas channel is formed between the boxes 12 , thereby effectively forming a dead zone of flue gas flow near the left water box 11 or the right water box 12 .
进一步可选实施例中，如图1结合图4所示，烟气挡板40设有多个通孔41，多个换热器10穿设通孔41，通孔41背离左水盒11或右水盒12的一侧设有翻边42，翻边42与换热器10通过焊接方式连接。也就是，烟气挡板40与换热器10无缝连接，如此，可以杜绝烟气穿过烟气挡板40作用于换热管13与左水盒11或右水盒12的焊缝内，从而进一步减轻换热管13的热疲劳。而且换热管13与烟气挡板40的密封连接，也可以使得换热管13对烟气挡板40进行降温，避免烟气挡板40被高温烧损。In a further optional embodiment, as shown in FIG. 1 and FIG. 4 , the flue gas baffle 40 is provided with a plurality of through holes 41 , and the plurality of heat exchangers 10 are provided with through holes 41 , and the through holes 41 are away from the left water box 11 or One side of the right water box 12 is provided with a flange 42, and the flange 42 is connected with the heat exchanger 10 by welding. That is, the flue gas baffle 40 is seamlessly connected with the heat exchanger 10 , so that the flue gas can be prevented from passing through the flue gas baffle 40 and acting on the welding seam between the heat exchange tube 13 and the left water box 11 or the right water box 12 . , thereby further reducing the thermal fatigue of the heat exchange tube 13 . In addition, the sealed connection between the heat exchange tube 13 and the flue gas baffle 40 can also make the heat exchange tube 13 cool the flue gas baffle 40 to prevent the flue gas baffle 40 from being burnt by high temperature.
进一步可选实施例中，如图1所示，隔烟板43设于烟气挡板40的顶部。可以理解的是，在烟气预冷的情况，容易产生冷凝水，如果将隔烟板43设置于烟气挡板40的底部，冷凝水会被蓄积在隔烟板43上，而造成隔烟板43的腐蚀。In a further optional embodiment, as shown in FIG. 1 , the smoke barrier 43 is provided on the top of the smoke baffle 40 . It can be understood that in the case of flue gas pre-cooling, condensed water is likely to be generated. If the smoke barrier 43 is arranged at the bottom of the flue gas baffle 40, the condensed water will be accumulated on the smoke barrier 43, resulting in smoke barrier. Corrosion of plate 43.
进一步可选示例中，烟气挡板40的底部形成有波浪面44。如此，可以提高换热管13与烟气的换热效率，避免烟气挡板40过热而烧损，提高烟气挡板40的使用寿命。In a further optional example, a corrugated surface 44 is formed at the bottom of the flue gas baffle 40 . In this way, the heat exchange efficiency between the heat exchange tube 13 and the flue gas can be improved, the flue gas baffle 40 can be prevented from being overheated and burnt out, and the service life of the flue gas baffle 40 can be improved.
如图2和图3、图5和图6所示，根据本申请实施例的燃气设备100，包括：上述实施例的换热器10、框体50、燃烧器60和风机70。As shown in FIG. 2 , FIG. 3 , FIG. 5 and FIG. 6 , the gas equipment 100 according to the embodiment of the present application includes the heat exchanger 10 , the frame body 50 , the burner 60 and the fan 70 of the above-mentioned embodiment.
具体地，框体50限定出燃烧室51。燃烧器60设于燃烧室51内与换热器10在上下方向相对设置。风机70连接于框体50的底部，风机70的出风口与燃烧室51相通。燃气设备100工作时，风机70将外界空气引入燃烧室内，为燃烧器60的燃烧提供氧气，燃烧器60产生的高温烟气自下向上流动，高温烟气与换热器10进行热交换，从而实现对外输送热量的目的。Specifically, the frame body 50 defines a combustion chamber 51 . The burner 60 is provided in the combustion chamber 51 and is provided opposite to the heat exchanger 10 in the up-down direction. The fan 70 is connected to the bottom of the frame body 50 , and the air outlet of the fan 70 communicates with the combustion chamber 51 . When the gas equipment 100 is in operation, the fan 70 introduces the outside air into the combustion chamber to provide oxygen for the combustion of the burner 60, the high-temperature flue gas generated by the burner 60 flows from bottom to top, and the high-temperature flue gas exchanges heat with the heat exchanger 10, thereby To achieve the purpose of external heat transfer.
由于本申请实施例的燃气设备100包括上述实施例中使用寿命长的换热器10，因此，本申请实施例的燃气设备100的使用寿命长。Since the gas equipment 100 of the embodiment of the present application includes the heat exchanger 10 with a long service life in the above embodiments, the service life of the gas equipment 100 of the embodiment of the present application is long.
在本申请实施例的燃气设备100还包括导流板80，如图5所示，框体50的左侧内壁和右侧内壁间隔设有导流板80，从而构设出风冷通道90，风冷通道90与风机70的出风口连通，风冷通道90内的气流至少一部分吹向左水盒11或右水盒12的底部。也就是说，风冷 通道90将风机70吸入的一部分冷空气引入换热器10的两端(左水盒11和右水盒12附近)，从而在换热器10的两端形成气膜，避免高温烟气的热量逼近左水盒11或右水盒12区域，从而减小换热管13的热疲劳，避免换热管13与左水盒11或右水盒12之间产生的焊缝产生裂纹，防止换热管13出现渗水现象。The gas equipment 100 in the embodiment of the present application further includes a deflector 80. As shown in FIG. 5, the left inner wall and the right inner wall of the frame body 50 are spaced with a deflector 80, thereby forming an air cooling channel 90, The air cooling channel 90 is communicated with the air outlet of the fan 70 , and at least a part of the airflow in the air cooling channel 90 is blown toward the bottom of the left water box 11 or the right water box 12 . That is to say, the air cooling channel 90 introduces a part of the cold air sucked by the fan 70 into both ends of the heat exchanger 10 (near the left water box 11 and the right water box 12 ), thereby forming an air film at both ends of the heat exchanger 10, Avoid the heat of the high-temperature flue gas approaching the area of the left water box 11 or the right water box 12, thereby reducing the thermal fatigue of the heat exchange tube 13 and avoiding the welding seam between the heat exchange tube 13 and the left water box 11 or the right water box 12. Cracks are generated to prevent water seepage in the heat exchange tubes 13 .
进一步可选实施中，如图5所示，风冷通道90的底部具有进口91，风冷通道90的顶部具有出口92。即冷空气从底部进，顶部出，可以直接吹向换热器10的两端，从而在换热器10的两端形成低温气膜，从而减小换热管13的热疲劳，避免换热管13与左水盒11或右水盒12之间产生的焊缝产生裂纹，防止换热管13出现渗水现象。In a further optional implementation, as shown in FIG. 5 , the bottom of the air cooling channel 90 has an inlet 91 , and the top of the air cooling channel 90 has an outlet 92 . That is, the cold air enters from the bottom and exits from the top, and can be directly blown to both ends of the heat exchanger 10, thereby forming a low-temperature air film at both ends of the heat exchanger 10, thereby reducing the thermal fatigue of the heat exchange tubes 13 and avoiding heat exchange. The welded seam between the tube 13 and the left water box 11 or the right water box 12 produces cracks to prevent water seepage in the heat exchange tube 13 .
进一步可选实施例中，如图6和图7所示，框体50的前侧内壁和/或后侧内壁间隔设有导流板80，从而构设出与风机70的出口相通的风冷通道90，导流板80具有多个截流段81，截流段81具有横向延伸段811和纵向延伸段812，横向延伸段811自内向外延伸，纵向延伸段812的起始端与横向延伸段811的尾端连接，纵向延伸段812折向上倾斜延伸，每一个截流段81具有出口92。即风冷通道90通过多个截流段81进行分流，并在每一个截流段81分流向上流出，分散在导流板80的内壁面区域，从而在导流板80的内壁面始终形成气膜层，阻挡热量通过导流板80和框体50对外辐射，从而减少热量对燃气设备100的零部件的影响。In a further optional embodiment, as shown in FIG. 6 and FIG. 7 , the front inner wall and/or the rear inner wall of the frame body 50 is provided with a guide plate 80 at intervals, so as to construct an air cooling system that communicates with the outlet of the fan 70 . The channel 90, the baffle 80 has a plurality of interception sections 81, the interception section 81 has a transverse extension section 811 and a longitudinal extension section 812, the transverse extension section 811 extends from the inside to the outside, and the start end of the longitudinal extension section 812 is connected to the transverse extension section 811. The tail ends are connected, and the longitudinally extending section 812 is folded and extended upwardly and obliquely, and each intercepting section 81 has an outlet 92 . That is, the air-cooling channel 90 is divided by a plurality of interception sections 81 , and the flow is divided upward in each interception section 81 , and dispersed in the inner wall area of the deflector 80 , so that a gas film layer is always formed on the inner wall of the deflector 80 . , to prevent the heat from radiating to the outside through the deflector 80 and the frame body 50 , thereby reducing the influence of heat on the components of the gas equipment 100 .
进一步可选地，每一个截流段81具有出口92形成于横向延伸段811且开口方向向上。由此，更加有利于在导流板80的内壁面始终形成气膜层，减少热量对外辐射。Further optionally, each shut-off section 81 has an outlet 92 formed in the laterally extending section 811 and the opening direction is upward. Therefore, it is more favorable to form a gas film layer on the inner wall surface of the deflector 80 all the time, thereby reducing the heat radiation to the outside.
进一步可选实施例中，如图5和图6所示，风冷通道90的进口91低于燃烧器60的燃烧面，由此，可以保证风冷通道90内的空气温度较低，较佳地，风冷通道90内的空气来源为风机70直接引入的冷空气。冷空气在风冷通道90向上流动过程中，也可以对框体50的温度进行降温，从而减小框体50对外热辐射，减少热量对燃气设备100的零部件的损害。In a further optional embodiment, as shown in FIG. 5 and FIG. 6 , the inlet 91 of the air-cooling channel 90 is lower than the combustion surface of the burner 60 , so that the air temperature in the air-cooling channel 90 can be ensured to be relatively low. Ground, the air source in the air cooling channel 90 is the cold air directly introduced by the fan 70 . During the upward flow of the cold air in the air cooling channel 90 , the temperature of the frame body 50 can also be lowered, so as to reduce the external heat radiation of the frame body 50 and reduce heat damage to the components of the gas equipment 100 .
在本申请的描述中，需要理解的是，术语“底”、“顶”、“内”、“外”、“上”、“下”、“前”、“后”、“左”、“右”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申请和简化描述，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申请的限制。In the description of this application, it is to be understood that the terms "bottom", "top", "inner", "outer", "upper", "lower", "front", "rear", "left", " The orientation or positional relationship indicated by "right" and the like is based on the orientation or positional relationship shown in the accompanying drawings, which is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the indicated device or element must have a specific orientation, so as to The specific orientation configuration and operation are therefore not to be construed as limitations of the present application.
在本申请中，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，或一体地连接；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。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申请中的具体含义。In this application, unless otherwise expressly specified and limited, the terms "installation", "connection", "connection", "fixation" and other terms should be understood in a broad sense, for example, it may be a fixed connection or a detachable connection , or integrally connected; it can be a mechanical connection or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or the internal communication between the two components. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific situations.
在本申请中，除非另有明确的规定和限定，第一特征在第二特征之“上”或之“下”可 以包括第一和第二特征直接接触，也可以包括第一和第二特征不是直接接触而是通过它们之间的另外的特征接触。而且，第一特征在第二特征“之上”、“上方”和“上面”包括第一特征在第二特征正上方和斜上方，或仅仅表示第一特征水平高度高于第二特征。第一特征在第二特征“之下”、“下方”和“下面”包括第一特征在第二特征正上方和斜上方，或仅仅表示第一特征水平高度小于第二特征。In this application, unless otherwise expressly specified and defined, a first feature "on" or "under" a second feature may include direct contact between the first and second features, or may include the first and second features Not directly but through additional features between them. Also, the first feature being "above", "over" and "above" the second feature includes the first feature being directly above and obliquely above the second feature, or simply means that the first feature is level higher than the second feature. The first feature is "below", "below" and "beneath" the second feature includes the first feature being directly above and obliquely above the second feature, or simply means that the first feature is level less than the second feature.
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申请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一定指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。In the description of this specification, description with reference to the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples", etc., mean specific features described in connection with the embodiment or example , structure, material or feature is included in at least one embodiment or example of the present application. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
尽管上面已经示出和描述了本申请的实施例，可以理解的是，上述实施例是示例性的，不能理解为对本申请的限制，本领域的普通技术人员在不脱离本申请的原理和宗旨的情况下在本申请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 application have been shown and described above, it should be understood that the above-mentioned embodiments are exemplary and should not be construed as limitations to the present application. Variations, modifications, substitutions, and alterations to the above-described embodiments are possible within the scope of the present application without departing from the scope of the present application.

Claims (17)

  1. 一种燃气设备，其中，包括：A gas appliance, comprising:
    框体，所述框体限定出燃烧室，设置于所述框体内部的换热器；a frame body, the frame body defines a combustion chamber, and a heat exchanger is arranged inside the frame body;
    燃烧器，所述燃烧器设于所述燃烧室内与所述换热器在上下方向相对设置；a burner, which is arranged in the combustion chamber and is opposite to the heat exchanger in the up-down direction;
    风机，所述风机连接于所述框体的底部，所述风机的出风口与所述燃烧室相通；所述框体的内壁上间隔设有导流板，所述导流板与所述框体的内壁之间构设出风冷通道，所述风冷通道的进口低于所述燃烧器的燃烧面且与所述风机的出风口连通。a fan, the fan is connected to the bottom of the frame body, and the air outlet of the fan communicates with the combustion chamber; the inner wall of the frame body is spaced with a baffle plate, and the baffle plate is connected to the frame An air cooling channel is formed between the inner walls of the body, and the inlet of the air cooling channel is lower than the combustion surface of the burner and communicates with the air outlet of the fan.
  2. 根据权利要求1所述的燃气设备，其中，所述框体包括框体的左右侧壁和连接所述左右侧壁的后侧壁和底板。The gas equipment according to claim 1, wherein the frame body comprises left and right side walls of the frame body and a rear side wall and a bottom plate connecting the left and right side walls.
  3. 根据权利要求1或2所述的燃气设备，其中，所述导流板与所述框体的左右侧壁和后侧壁对应间隔设置导流部以形成风冷通道。The gas equipment according to claim 1 or 2, wherein the guide plate is provided with guide parts at intervals corresponding to the left and right side walls and the rear side wall of the frame to form an air cooling channel.
  4. 根据权利要求1-3任一项所述的燃气设备，其中，所述导流板与所述框体的左侧内壁和/或右侧内壁间隔形成左右侧的风冷通道，所述左右侧的风冷通道从所述燃烧器的底部向上延伸到所述换热器的底部，所述左右侧的风冷通道的进风口设置于所述燃烧器的底部。The gas equipment according to any one of claims 1-3, wherein the air guide plate is spaced from the left inner wall and/or the right inner wall of the frame to form left and right air cooling channels, and the left and right The air cooling channel extends upward from the bottom of the burner to the bottom of the heat exchanger, and the air inlets of the left and right air cooling channels are arranged at the bottom of the burner.
  5. 根据权利要求1-3任一项所述的燃气设备，其中，所述导流板与所述框体的前侧内壁和/或后侧内壁间隔形成前后侧的风冷通道，所述导流板与所述前侧内壁和/或后侧内壁间隔设置的导流部上设置有一个或多个截流段，所述截流段上形成所述风冷通道的出风口。The gas equipment according to any one of claims 1-3, wherein the air-cooling channel on the front and rear sides is formed by the deflector and the front inner wall and/or the rear inner wall of the frame. One or more interception sections are arranged on the air guide portion of the plate and the front inner wall and/or the rear inner wall spaced apart, and the air outlet of the air cooling channel is formed on the interception section.
  6. 根据权利要求5所述的燃气设备，其中，所述截流段具有横向延伸段和纵向延伸段，所述横向延伸段自内向外延伸，所述纵向延伸段的起始端与所述横向延伸段的尾端连接，所述纵向延伸段折向上倾斜延伸，每一个所述截流段具有所述风冷通道的出口。The gas equipment according to claim 5, wherein the shut-off section has a transverse extension section and a longitudinal extension section, the transverse extension section extends from the inside to the outside, and the start end of the longitudinal extension section is the same as that of the transverse extension section. The tail ends are connected, the longitudinally extending sections are folded and extend upward and obliquely, and each of the intercepting sections has an outlet of the air-cooling channel.
  7. 根据权利要求5或6所述的燃气设备，其中，每一个所述截流段具有所述出口形成于所述横向延伸段且开口方向向上。The gas equipment according to claim 5 or 6, wherein each of the shut-off sections has the outlet formed in the laterally extending section with an opening direction upward.
  8. 根据权利要求1-7任一项所述的燃气设备，其中，所述框体的左右侧壁与后侧壁一体成型，所述框体还包括与所述一体成型的左右侧壁和后侧壁配合连接的盖板，所述盖板构成所述框体的前侧板。The gas equipment according to any one of claims 1-7, wherein the left and right side walls and the rear side walls of the frame body are integrally formed, and the frame body further comprises left and right side walls and a rear side which are integrally formed with the frame body. The wall is fitted with a cover plate connected to the wall, and the cover plate constitutes the front side plate of the frame body.
  9. 根据权利要求1-8任一项所述燃气设备，其中，与框体的左右侧壁和后侧壁间隔设置的所述导流板一体成型，所述导流板还包括与所述框体的前侧壁连接的前导流板。The gas equipment according to any one of claims 1 to 8, wherein the guide plates spaced apart from the left and right side walls and the rear side walls of the frame body are integrally formed, and the guide plates further include a guide plate connected to the frame body. the front air deflector attached to the front side wall.
  10. 根据权利要求1-9任一项所述的燃气设备，其中，所述换热器包括：The gas equipment according to any one of claims 1-9, wherein the heat exchanger comprises:
    多个换热管；Multiple heat exchange tubes;
    左水盒和右水盒，所述左水盒构设出左水腔，所述右水盒构设出右水腔，所述左水盒与多个所述换热管的左端焊接且所述左水腔与多个所述换热管相通，所述右水盒与多个所述换热管的右端焊接且所述右水腔与多个所述换热管相通，其中，所述左水腔和右水腔的其 中一个与进水管连接，另一个与出水管连接。The left water box and the right water box, the left water box forms a left water cavity, the right water box forms a right water cavity, and the left water box is welded with the left ends of the plurality of heat exchange tubes and is The left water cavity is communicated with a plurality of the heat exchange tubes, the right water box is welded with the right ends of the plurality of heat exchange tubes, and the right water cavity is communicated with a plurality of the heat exchange tubes, wherein the One of the left water chamber and the right water chamber is connected with the water inlet pipe, and the other is connected with the water outlet pipe.
  11. 根据权利要求10所述的燃气设备，其中，所述换热器包括：The gas appliance of claim 10, wherein the heat exchanger comprises:
    烟气挡板，所述烟气挡板设于所述左水盒的右侧和/或右水盒的左侧，用于干扰烟气持续流向所述左水盒和所述右水盒。The smoke baffle, which is arranged on the right side of the left water box and/or the left side of the right water box, is used to interfere with the continuous flow of smoke to the left water box and the right water box.
  12. 根据权利要求11所述的燃气设备，其中，所述烟气挡板与所述左水盒的右侧面和/或右水盒的左侧面平行设置，所述烟气挡板设有隔烟板，所述隔烟板垂直于所述左水盒的右侧面和右水盒的左侧面。The gas equipment according to claim 11, wherein the smoke baffle is arranged in parallel with the right side of the left water box and/or the left side of the right water box, and the smoke baffle is provided with a partition The cigarette board is perpendicular to the right side of the left water box and the left side of the right water box.
  13. 根据权利要求12所述的燃气设备，其中，所述隔烟板与所述左水盒的右侧面和/或所述右水盒的左侧面贴合且通过焊接方式连接。The gas equipment according to claim 12, wherein the smoke baffle is attached to the right side of the left water box and/or the left side of the right water box and is connected by welding.
  14. 根据权利要求11-13任一项所述的燃气设备，其中，所述烟气挡板设有多个通孔，多个所述换热器穿设所述通孔，所述通孔背离所述左水盒或右水盒的一侧设有翻边，所述翻边与所述换热器通过焊接方式连接。The gas equipment according to any one of claims 11-13, wherein the flue gas baffle is provided with a plurality of through holes, the plurality of heat exchangers pass through the through holes, and the through holes face away from all the through holes. One side of the left water box or the right water box is provided with a flange, and the flange is connected with the heat exchanger by welding.
  15. 根据权利要求12或13所述的燃气设备，其中，所述隔烟板设于所述烟气挡板的顶部。The gas equipment according to claim 12 or 13, wherein the smoke barrier is arranged on the top of the smoke baffle.
  16. 根据权利要求11-15任一项所述的燃气设备，其中，所述烟气挡板的底部形成有波浪面。The gas equipment according to any one of claims 11-15, wherein the bottom of the flue gas baffle is formed with a corrugated surface.
  17. 一种燃气热水器，其中，包括如权利要求1-16中任一项所述的燃气设备。A gas-fired water heater, comprising the gas-fired equipment according to any one of claims 1-16.
PCT/CN2022/072179 2021-01-15 2022-01-14 Gas device and gas water heater WO2022152277A1 (en)

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CN114763972A (en) * 2021-01-15 2022-07-19 芜湖美的厨卫电器制造有限公司 Heat exchanger and gas equipment

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109114812A (en) * 2018-09-12 2019-01-01 广东万和新电气股份有限公司 A kind of heat exchanger
CN210569238U (en) * 2019-07-16 2020-05-19 广东万和新电气股份有限公司 Heat exchanger and water heater with same
CN111442522A (en) * 2020-04-02 2020-07-24 宁波方太厨具有限公司 Gas water heater
CN211823178U (en) * 2019-10-31 2020-10-30 芜湖美的厨卫电器制造有限公司 Combustion chamber and gas appliance
CN211876377U (en) * 2019-12-10 2020-11-06 芜湖美的厨卫电器制造有限公司 Gas equipment
CN212409092U (en) * 2019-10-31 2021-01-26 芜湖美的厨卫电器制造有限公司 Gas equipment

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109114812A (en) * 2018-09-12 2019-01-01 广东万和新电气股份有限公司 A kind of heat exchanger
CN210569238U (en) * 2019-07-16 2020-05-19 广东万和新电气股份有限公司 Heat exchanger and water heater with same
CN211823178U (en) * 2019-10-31 2020-10-30 芜湖美的厨卫电器制造有限公司 Combustion chamber and gas appliance
CN212409092U (en) * 2019-10-31 2021-01-26 芜湖美的厨卫电器制造有限公司 Gas equipment
CN211876377U (en) * 2019-12-10 2020-11-06 芜湖美的厨卫电器制造有限公司 Gas equipment
CN111442522A (en) * 2020-04-02 2020-07-24 宁波方太厨具有限公司 Gas water heater

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