WO2017121256A1 - Échangeur de chaleur et chauffe-eau - Google Patents

Échangeur de chaleur et chauffe-eau Download PDF

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Publication number
WO2017121256A1
WO2017121256A1 PCT/CN2016/113768 CN2016113768W WO2017121256A1 WO 2017121256 A1 WO2017121256 A1 WO 2017121256A1 CN 2016113768 W CN2016113768 W CN 2016113768W WO 2017121256 A1 WO2017121256 A1 WO 2017121256A1
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WO
WIPO (PCT)
Prior art keywords
heat exchange
flue gas
heat exchanger
heat
exchanger according
Prior art date
Application number
PCT/CN2016/113768
Other languages
English (en)
Chinese (zh)
Inventor
杜小文
梁国荣
黄官贤
陆祖安
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
Priority claimed from CN201620031776.4U external-priority patent/CN205537227U/zh
Priority claimed from CN201610021833.5A external-priority patent/CN105486125B/zh
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
Publication of WO2017121256A1 publication Critical patent/WO2017121256A1/fr

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H8/00—Fluid heaters characterised by means for extracting latent heat from flue gases by means of condensation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F1/00—Tubular elements; Assemblies of tubular elements
    • F28F1/10—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]

Definitions

  • the invention relates to the technical field of water heaters, in particular to a heat exchanger and a water heater.
  • the heat exchanger used in the gas water heater industry exchanges heat through the heat exchange tubes and the heat exchange fins, and the heat exchange tubes form heat exchange bodies through the heat exchange fins, and the heat exchange fins are flat thin plates to enhance heat exchange.
  • the method mainly involves the interference of the flue gas flow direction on the thin plate by pressing or flanging holes, and the heat exchange fin has no guiding effect on the flue gas in the flow direction of the flue gas, and cannot guide the flue gas to fully contact with the heat exchange fins.
  • the heat exchange area of the heat exchange fins in contact with the flue gas is also relatively small, so the heat exchange efficiency of the existing heat exchanger is low.
  • the main object of the present invention is to provide a heat exchanger aimed at improving the heat exchange efficiency of the heat exchanger.
  • the heat exchanger of the present invention has a flue gas inlet and a flue gas outlet, and the heat exchanger includes a heat exchange member, a plurality of rows of heat exchange tubes, and a first current collecting end cover and a second current collecting unit. End cap
  • Forming gaps are formed between the heat exchange tubes of the adjacent rows, the opposite sides of the mounting gap correspond to the flue gas inlet and the flue gas outlet of the heat exchanger, and the heat exchange member is disposed in the installation gap And affixing adjacent two rows of heat exchange tubes in the heat exchanger;
  • the heat exchange member comprises a heat exchange sheet, the heat exchange sheet is made of a metal material; the heat exchange sheet is bent back and forth in a thickness direction thereof to form a wave shape, so as to be on both sides of the heat exchange sheet Forming a ridge portion provided at intervals; a flue gas aisle is formed between two adjacent ridges on a surface on the same side of the heat exchange sheet, and the flue gas passage constitutes smoke of the heat exchange member a passage; the flue gas passage of the heat exchange member is connected to the flue gas inlet and the flue gas outlet;
  • the first current collecting end cover and the second current collecting end cover are correspondingly disposed with the two ends of the plurality of rows of heat exchange tubes, and the corresponding heat exchange tubes of the plurality of rows of heat exchange tubes are connected.
  • the flue gas passage is arranged in a straight line shape, a wave type setting or a line type in the extending direction thereof.
  • the ridge portion is provided with a first mounting plane for attaching to the heat exchange tube.
  • the heat exchange member comprises a plurality of the heat exchange sheets, and the plurality of heat exchange sheets are sequentially spliced, and the flue gas passages of the plurality of heat exchange sheets are connected to form the flue gas passage.
  • the flue gas passage is curved or bent.
  • the flue gas passages on the surfaces of the different sides of the adjacent two of the heat exchange sheets are butted to form the flue gas passage.
  • a flue gas passage of one of the heat exchange sheets is inclined with respect to a flue gas passage of another heat exchange sheet that is butted against the flue gas passage.
  • the flue gas passage is bent in the intake direction.
  • the heat exchange sheet is made of stainless steel.
  • the heat exchange tube is a flat tube.
  • the heat exchange tube has a circular, elliptical or square cross section.
  • the outer surface of the heat exchange tube has a second mounting plane for attaching to the heat exchange sheet.
  • each row of the heat exchange tubes is integrated in a heat exchange tube integrated board
  • the heat exchange tube integrated board includes two mutually contiguous slabs, at least one of which is oriented multiple times
  • the outer side is raised to form a plurality of grooves arranged side by side on the inner side of the layering plate, and the plurality of grooves extend from one end of the layering plate to the other end of the layering plate, and the plurality of The groove and the other interlayer plate enclose a row to form the heat exchange tube.
  • the two laminates are formed by folding one plate.
  • the first current collecting end cover comprises a first end plate mounted on one end of the plurality of rows of heat exchange tubes
  • the second current collecting end cover comprises a first end mounted on the other end of the plurality of rows of heat exchange tubes a second end plate; the first end plate is provided with a first guiding groove for connecting the corresponding heat exchange tube, and the second end plate is provided with a second for connecting the corresponding heat exchange tube Diversion trough.
  • the first current collecting end cover further includes a first positioning plate disposed inside the first end plate and connected to the first end plate, and the first positioning plate is disposed corresponding to each of the heat exchange tubes a first positioning protrusion, the first positioning protrusion extends into the corresponding heat exchange tube, and the first positioning protrusion is provided with a first portion connecting the first guiding groove and the heat exchange tube a through hole
  • the second collecting end cover further includes a second positioning plate disposed on the inner side of the second end plate and connected to the second end plate, and the second positioning plate is provided with a second corresponding to each of the heat exchange tubes Positioning a protrusion, the second positioning protrusion extends into the corresponding heat exchange tube, and the second positioning protrusion is provided with a second through hole communicating with the second flow guiding groove and the heat exchange tube .
  • the two outer rows of the heat exchange tubes disposed on the outermost side constitute two outer surfaces of the heat exchanger; the two outer rows of the heat exchange tubes disposed at the outermost side and the first current collecting end cover,
  • the two current collecting end covers are collectively arranged to form a frame having two openings, one opening of the frame forming the flue gas inlet, and the other opening of the frame forming the flue gas outlet.
  • the heat exchanger further includes an intake flange to assist the flue gas entering the heat exchanger; the intake flange is installed at the flue gas inlet.
  • the heat exchanger further comprises a collecting hood for collecting combustion exhaust gas; the collecting hood is installed at the flue gas outlet.
  • the invention also provides a water heater comprising a burner and a heat exchanger, the heat exchanger comprising a heat exchange member, a plurality of rows of heat exchange tubes, and a first current collecting end cover and a second current collecting end cover;
  • Forming gaps are formed between the heat exchange tubes of the adjacent rows, the opposite sides of the mounting gap correspond to the flue gas inlet and the flue gas outlet of the heat exchanger, and the heat exchange member is disposed in the installation gap And affixing adjacent two rows of heat exchange tubes in the heat exchanger;
  • the heat exchange member includes a heat exchange sheet; the heat exchange sheet is bent back and forth in a thickness direction thereof to form a wave shape, so as to form spaced apart ridges on both front and back sides of the heat exchange sheet; a flue gas passage is formed between two adjacent ridges on a surface of the same side of the heat sheet, the flue gas passage constituting a flue gas passage of the heat exchange member; and a flue gas passage of the heat exchange member Connecting the flue gas inlet and the flue gas outlet setting;
  • the first current collecting end cover and the second current collecting end cover are correspondingly disposed with the two ends of the plurality of rows of heat exchange tubes, and the corresponding heat exchange tubes of the plurality of rows of heat exchange tubes are connected;
  • the flue gas generated by the combustion of the burner passes through the flue gas passage.
  • the high-temperature flue gas enters the flue gas passage from the flue gas inlet, and the cold water flows in the heat exchange tube and flows around in the first collecting end cover and the second collecting end cover, and the high temperature
  • the flue gas and the cold water exchange heat through the contact of the heat exchange tube and the heat exchange sheet;
  • the heat exchange sheet is arranged in a wave shape, and the ridge portions are formed on the front and back sides of the heat exchange sheet, and the surface on the same side is formed on the same side
  • a flue gas aisle is formed between two adjacent ridges, and the high-temperature flue gas can be dispersed in a plurality of flue gas passages, and exchange heat with the heat exchange sheet and the heat exchange tube attached to the heat exchange sheet;
  • a plurality of ridges are formed on the heat sheet, and the heat exchange sheet of the heat exchanger of the present invention has a larger surface area than the ordinary heat exchange sheet of the same length and width, that is, compared with the ordinary heat exchange
  • the heat exchange area of the heat exchanger of the invention has a larger total heat exchange area, so that the heat exchanger of the invention can effectively improve the heat exchange efficiency;
  • the high temperature flue gas in each flue gas passage is The heat exchange sheet is surrounded by a heat exchange tube attached to the heat exchange sheet, and is in the flue gas passage The hot sheet and the corresponding heat exchange tube are in full contact to further improve the heat exchange efficiency;
  • the high temperature flue gas is dispersed and deflected through a plurality of flue gas passages to guide the high temperature flue gas flow, and the high temperature flue gas can be uniformly flowed. Therefore, the heat exchange of the heat exchanger is more uniform and the heat exchange effect is better.
  • the heat exchange sheet of the heat exchange member is arranged in a wave shape
  • the heat exchange sheet and the heat exchange tube of the heat exchanger of the present invention can be arranged to form a flue, and only the front and back surfaces of the heat exchange sheet need to be replaced.
  • the heat pipe can be welded, so that the heat exchanger of the present invention has a simpler structure and is easier to install than the structure in which the heat exchange tubes of the existing heat exchanger pass through the heat exchange fins.
  • FIG. 1 is a schematic structural view of an embodiment of a heat exchanger according to the present invention.
  • FIG. 2 is a schematic plan view showing the structure of the heat exchanger of FIG. 1;
  • FIG. 3 is a schematic exploded view of another perspective view of the heat exchanger of FIG. 1;
  • Figure 4 is a schematic view showing the assembly structure of the heat exchange member and the heat exchange tube of the heat exchanger of Figure 1;
  • FIG. 5 is a schematic structural view of a heat exchange member of the heat exchanger of Figure 1;
  • FIG. 6 is a schematic structural view of a heat exchange sheet of the heat exchange member of FIG. 5;
  • FIG. 7 is a schematic structural view of another perspective view of the heat exchange sheet of FIG. 6;
  • FIG. 8 is a schematic structural view of a heat exchange tube integrated plate of the heat exchanger of FIG. 1;
  • FIG. 9 is a schematic exploded view of the heat exchange tube integrated board of FIG. 8;
  • FIG. 10 is a schematic structural view of a first positioning plate of a first current collecting end cover of the heat exchanger of FIG. 1;
  • Figure 11 is a schematic view showing the structure of the second end plate of the second current collecting end cover of the heat exchanger of Figure 1.
  • first, second, and the like in the present invention are used for the purpose of description only, and are not to be construed as indicating or implying their relative importance or implicitly indicating the number of technical features indicated.
  • features defining “first” or “second” may include at least one of the features, either explicitly or implicitly.
  • the technical solutions between the various embodiments may be combined with each other, but must be based on the realization of those skilled in the art, and when the combination of the technical solutions is contradictory or impossible to implement, it should be considered that the combination of the technical solutions does not exist. It is also within the scope of protection required by the present invention.
  • the invention proposes a heat exchanger.
  • 1 is a schematic structural view of an embodiment of a heat exchanger according to the present invention
  • FIG. 2 is a schematic plan view of the heat exchanger of FIG. 1
  • FIG. 3 is a schematic view of the heat exchanger of FIG.
  • the heat exchanger has a flue gas inlet 101 and a flue gas outlet, and the heat exchanger includes a heat exchange member 100, a plurality of rows of heat exchange tubes 200, and a first Current collecting end cover 300 and second collecting end cover 400;
  • a mounting gap is formed between the heat exchange tubes 200 of adjacent rows, and opposite sides of the mounting gap correspond to the flue gas inlet 101 and the flue gas outlet of the heat exchanger, and the heat exchange member 100 is disposed at In the installation gap, and the adjacent two rows of heat exchange tubes 200 in the heat exchanger are disposed;
  • the heat exchange member 100 includes a heat exchange sheet 110 made of a metal material; the heat exchange sheet 110 is bent back and forth in a thickness direction thereof to form a wave shape, A ridge portion 111 is formed on both sides of the heat exchange sheet 110 at intervals; and a flue gas is formed between two adjacent ridge portions 111 on the surface of the same side of the heat exchange sheet 110.
  • the flue gas passage 112 constitutes a flue gas passage of the heat exchange member 100; the flue gas passage of the heat exchange member 100 communicates with the flue gas inlet 101 and the flue gas outlet;
  • the first current collecting end cover 300 and the second current collecting end cover 400 are correspondingly disposed with the two ends of the plurality of rows of heat exchange tubes 200, and the corresponding heat exchanges in the plurality of rows of heat exchange tubes 200 are The tube 200 is connected.
  • the high-temperature flue gas enters the flue gas passage from the flue gas inlet 101, and the cold water flows in the heat exchange tube 200 and is performed in the first collecting end cover 300 and the second collecting end cover 400.
  • the ridge portion 111 is formed with a flue gas passage 112 between two adjacent ridges 111 on the same side surface, and the high temperature flue gas can be dispersed in the plurality of flue gas passages 112, and is exchanged with the heat exchange sheet 110 and the heat exchange sheet 110.
  • the heat exchange tube 200 attached to the sheet 110 performs heat exchange; since a plurality of ridges 111 are formed on the heat exchange sheet 110, the heat exchange sheet 110 of the heat exchanger of the present invention is compared with a common heat exchange sheet of the same length and width.
  • the surface area is larger, that is to say, the heat exchanger of the present invention has a larger total heat exchange area than the heat exchanger using the common heat exchange sheet of the same length and width, so that the heat exchanger of the present invention can be effective Increasing heat exchange efficiency; at the same time, the high temperature flue gas in each flue gas passage 112 is replaced by the heat exchange sheet 110 and The heat exchange tube 200 attached to the heat exchange sheet 110 is surrounded by the heat exchange sheet 110 and the corresponding heat exchange tube 200 in the flue gas passage to further improve the heat exchange efficiency; meanwhile, through the plurality of flue gas passages 112.
  • the high-temperature flue gas is dispersed and deflected to guide the flow of the high-temperature flue gas, so that the high-temperature flue gas can flow uniformly, so that the heat exchange of the heat exchanger is more uniform and the heat exchange effect is better.
  • the heat exchange sheet 110 of the heat exchange member 100 is arranged in a wave shape
  • the heat exchange sheet 110 of the heat exchanger of the present invention is attached to the heat exchange tube 200 to form a flue, and only the heat exchange sheet 110 is required for installation.
  • the front and back surfaces are welded to the corresponding heat exchange tubes 200, so that the heat exchanger structure of the present invention is simpler and easier to install than the heat exchange tubes of the existing heat exchangers passing through the heat exchange fins.
  • the material of the heat exchange sheet 110 may be a metal having good thermal conductivity such as copper or aluminum, or a stainless steel having good corrosion resistance.
  • the heat exchange member 100 is made of stainless steel. Since the stainless steel material is used in the invention, the corrosion resistance and high temperature resistance of the heat exchanger can be improved, thereby improving the safe service life of the water heater, and better protecting the safety of the user.
  • the heat exchange sheet 110 of the present invention has a large heat exchange area and high heat exchange efficiency, so that it is made of stainless steel having a general heat conduction property, and a good heat exchange effect can also be achieved.
  • the number of heat exchange fins 110 of the heat exchange member 100 and the shape and extension direction of the flue gas passage 112 on each heat exchange fin 110 may be set according to the heat exchange efficiency of the heat exchanger; for example, When the heat exchange efficiency requirement is low, fewer heat exchange sheets 110 and heat exchange tubes 200 may be disposed, and the shape of the flue gas passage 112 of each heat exchange sheet 110 is linear, and the direction of the flue gas passage 112 extends.
  • the gas directions are parallel, thereby reducing the volume and weight of the heat exchanger; for example, when the heat exchange efficiency is high, more heat exchange sheets 110 and heat exchange tubes 200, and the flue gas of each heat exchange sheet 110 may be disposed.
  • the shape of the passage 112 is a wave type or a broken line type, and the direction in which the flue gas passage 112 extends is not at an angle of not 0° with respect to the intake direction.
  • the high temperature flue gas flows in the flue gas passage 112 along the extending direction of the flue gas passage 112.
  • the shape of the flue gas passage 112 determines the flow direction of the high temperature flue gas.
  • the shape of the flue gas passage 112 can be set as needed; for example, the flue gas
  • the aisle 112 is arranged in a straight line, a wave type or a line type in its extending direction.
  • the resistance of the flue gas passage 112 and the heat exchange effect may be integrated, and the shape of the passage and the distance between the two ridges 111 adjacent to the surface on the same side may be adjusted; if the resistance is large, the flue gas passage 112 may be arranged in a straight line.
  • the spacing between the adjacent two ridges 111 is increased; if the heat exchange efficiency is higher, the spacing between the adjacent two ridges 111 is reduced, and the flue gas passage 112 is set to be a wave or a broken line;
  • the resistance of the high temperature flue gas flowing in the flue gas passage 112 can be adjusted by adjusting the angle between the flue gas passage 112 and the intake direction of the high temperature flue gas (as indicated by the dotted arrow), for example, the intake direction of the high temperature flue gas.
  • the ridge portion 111 is provided with a first installation for attaching to the heat exchange tube 200.
  • the first mounting plane is attached to the outer wall of the heat exchange tube 200, the contact area is large, the heat conduction effect is good, and the installation reliability is high.
  • the connecting surface of the heat exchange tube 200 assembled with the heat exchange member 100 should also be a flat surface, so that the connection between the heat exchange tube 200 and the heat exchange member 100 is more convenient and firm.
  • the heat exchange member 100 may include only one heat exchange sheet 110; or may include a plurality of heat exchange sheets 110.
  • the flue gas passage of the heat exchange member 100 is composed of a heat exchange sheet.
  • the flue gas passage 112 of 110 is directly formed; referring to FIG. 4 and FIG. 5, in the embodiment, preferably, the heat exchange member 100 includes a plurality of heat exchange sheets 110, and the plurality of heat exchange sheets 110 are sequentially spliced. And a plurality of the flue gas passages 112 of the heat exchange sheet 110 are connected to form the over-smoke passage.
  • a plurality of heat exchange fins 110 are disposed, and the flue gas passages formed by the flue gas passages 112 of the plurality of heat exchange fins 110 are spliced, so that the extending direction and shape of the flue gas passages 112 of each of the heat exchange fins 110 are relatively simple.
  • the extending direction and shape of the flue gas passages 112 of the plurality of heat exchange fins 110 are changed; thereby adapting to the heat exchange requirement of the heat exchanger 100 of the heat exchanger .
  • the flue gas passage is curved or bent.
  • the bending or bending arrangement of the flue gas passage can be realized by adjusting the extending direction of the flue gas passage 112 of the different heat exchange fins 110.
  • the extending direction of the adjacent two flue gas passages 112 can be set to be 0.
  • the angle of °; the bending or bending of the flue gas passage can also be achieved by adjusting the shape of the flue gas passage 112 of the different heat exchange fins 110, for example, the flue gas passage 112 of the heat exchange fins 110 is bent or bent. Settings.
  • the high-temperature flue gas flows in the curved or bent flue gas passage, the stroke of the high-temperature flue gas is longer, and the resistance of the high-temperature flue gas is increased, the flow rate is slowed, and thus the heat exchange time of the high-temperature flue gas and the heat exchange sheet 110 is high. Longer and more heat exchange area, it can effectively improve heat exchange efficiency.
  • the flue gas passages 112 of the adjacent two heat exchange sheets 110 there are various ways to realize the communication of the flue gas passages 112 of the adjacent two heat exchange sheets 110.
  • the flue gas passages 112 on the surfaces of the two different heat exchange sheets 110 are butted to form the flue gas passage.
  • the high temperature flue gas may enter the flue gas passage 112 of the next heat exchange fin 110 from the flue gas passage 112 of the previous heat exchange fin 110, since the two flue gas passages 112 are located on different sides of the heat exchange member 100, that is, high temperature smoke
  • the gas can be heat exchanged with the heat exchange tubes 200 on different sides of the heat exchange member 100, facilitating uniform heat exchange of the heat exchanger using the heat exchange member 100.
  • the flue gas passages 112 on the surfaces of the same side of the adjacent two of the heat exchange sheets 110 are butted to form the flue gas passage. This arrangement also enables the communication of the flue gas passages 112 of the adjacent two heat exchange fins 110, thereby guiding the flow of the high temperature flue gas.
  • the flue gas passage 112 of the heat exchange sheet 110 is opposite to the flue gas passage 112.
  • the flue gas passage 112 of the heat exchange sheet 110 is disposed obliquely. That is, the extending direction of the adjacent two flue gas passages 112 is not at an angle of 0°. At this time, the flue gas passage is bent at the junction of the two flue gas passages 112, and the high-temperature flue gas is bent in the flue gas.
  • the flow in the channel has a longer stroke, and the resistance of the high-temperature flue gas is increased, and the flow rate is slowed down, so that the heat exchange time of the high-temperature flue gas and the heat exchange sheet 110 is longer and the heat exchange area is larger, so that the exchange can be effectively improved. Thermal efficiency.
  • the flue gas passage is bent in the intake direction. Considering that the angle of the bending excessively affects the flow resistance, referring to FIG. 4 and FIG. 5, in the present embodiment, the direction of the flue gas passage 112 of the flue gas passage near the intake port is 30° to the intake direction. The angle between the adjacent two flue gas passages 112 is 120°, which does not cause too much resistance to the high-temperature flue gas entering the flue gas passage, and at the same time has the extended flue gas passage total range. Effect.
  • the heat exchange tube 200 is a flat tube.
  • the heat exchange tube 200 is a flat tube, and the central region of the heat exchange tube 200 is closer to the heat source.
  • the temperature difference between the water temperature at the tube wall and the water temperature in the central region may be small, and the water temperature is not unevenly distributed, resulting in easy scaling and water flow noise.
  • Such adverse effects no need to increase the spoiler structure such as the coil, the twisted piece, and the spoiler, can also make the water heat exchange in the heat exchange tube 200 more uniform, compared with the existing heat exchange tube, the cost Lower, the process is simpler.
  • the heat exchange tubes 200 are not limited to flat tubes, for example, in other embodiments of the invention, the heat exchange tubes 200 are circular, elliptical or square in cross section.
  • the actual setting of the heat exchange tube 200 can be selected as needed, and the present invention does not limit this.
  • the outer surface of the heat exchange tube 200 has a function.
  • the second mounting plane 201 is attached to the heat exchange sheet 110.
  • the second mounting plane 201 is attached to the heat exchange sheet 110, the contact area is large, the heat conduction effect is good, and the installation reliability is high.
  • the connection surface of the heat exchange sheet 110 matched with the heat exchange tube 200 should also be a flat surface. The connection between the heat exchange tube 200 and the heat exchange sheet 110 is more convenient and firm.
  • each row of the heat exchange tubes 200 is integrated into a heat exchange tube integrated plate 500 , and the heat exchange tube integrated plate 500 includes two At least one of the landing slabs 510 is swelled outwardly for a plurality of times, so that a plurality of grooves 511 arranged side by side are formed on the inner side of the slab 510.
  • a groove 511 extends from one end of the layering plate 510 to the other end of the layering plate 510, and a plurality of the grooves 511 and another interlayer plate enclose a row of the heat exchange tubes 200.
  • the plurality of heat exchange tubes 200 are integrated into the plate-shaped heat exchange tube integrated plate 500, so that the heat exchange tube integrated plate 500 can be used in the heat exchanger instead of the original one row of heat exchange tubes 200, and only a few pieces are used.
  • the heat exchange tube integrated plate 500 can provide more heat exchange tubes 200.
  • the ridges of the slab 510 may be formed by a molding process, and a slab may be disposed on one of the slabs 510; or a ridge may be formed at a position corresponding to the two slabs 510, and the corresponding two grooves 511 are enclosed
  • the heat exchange tube 200 is formed; in actual operation, the arrangement of the laminate 510 depends on the needs of the heat exchange tube 200.
  • each heat exchange tube integration plate 500 has a risk of water leakage only at the edge welding position of the lamination plate 510, and the existing heat exchange tube 200 has a risk of water leakage at the welding position, and thus With a plurality of independent heat exchange tubes 200, the risk of water leakage of the heat exchange tube integrated plate 500 of the present invention is significantly lower.
  • the two landing plates 510 may be two independent plates or may be formed by folding the same plate.
  • the two bonding plates 510 are formed by folding a plate body. Therefore, one of the two laminates 510 is originally joined together without soldering, the molding process is simplified, and the risk of water leakage is further reduced.
  • the plate body is folded in half from the broken line, and a side plate 510 is formed on both sides of the broken line.
  • the first collecting end cover 300 and the second collecting end cover 400 are used to conduct different heat exchange tubes 200, so that the water flow flows around and enters different heat exchange tubes 200, so that the water flow can flow through all the heat exchange tubes.
  • the tubes 200 are capable of achieving uniform heat exchange; they have a plurality of ways to conduct different heat exchange tubes 200, such as a U-shaped tube or a multi-pass tube that communicates with the heat exchange tubes 200; in order to achieve better conductivity, For simplifying the mounting operation, please refer to FIG. 1 to FIG. 3, and FIG. 11.
  • the first current collecting end cover 300 includes a first end installed at one end of the plurality of rows of heat exchange tubes 200.
  • the second collector end cover 400 includes a second end plate 410 mounted on the other end of the plurality of rows of heat exchange tubes 200.
  • the first end plate 310 is provided with the heat exchange corresponding to the communication.
  • the first guide groove 311 of the tube 200 is provided with a second flow guiding groove 411 for communicating with the corresponding heat exchange tube 200.
  • the first current collecting end cover 300 further includes a first positioning plate 320 disposed inside the first end plate 310 and connected to the first end plate 310 .
  • a first positioning protrusion 321 is disposed on the first positioning plate 320 corresponding to each of the heat exchange tubes 200, and the first positioning protrusion 321 extends into the corresponding heat exchange tube 200, the first a first through hole 322 that communicates with the first guiding groove 311 and the heat exchange tube 200 is disposed on the positioning protrusion 321;
  • the second collecting end cover 400 further includes a second end plate 410 and is disposed inside the second end plate 410 The second positioning plate 420 is connected to the second end plate 410.
  • the second positioning plate 420 is provided with a second positioning protrusion 421 corresponding to each of the heat exchange tubes 200.
  • the second positioning protrusion 421 extends into the corresponding position.
  • the second positioning protrusion 421 is provided with a second through hole (not shown) that communicates with the second flow guiding groove 411 and the heat exchange tube 200.
  • the two ends of the heat exchange tube 200 are respectively positioned by the first positioning plate 320 and the second positioning plate 420, and are connected to the heat exchange tube 200 through the first positioning protrusion 321 and the second positioning protrusion 421, and the first through hole 322 is connected.
  • the first flow guiding groove 311 and the heat exchange tube 200 communicate with the second flow guiding groove 411 and the heat exchange tube 200 to realize the functions of collecting and bypassing.
  • the heat exchange tube 200 is welded to the heat exchange sheet 110 of the heat exchange member 100
  • the first positioning plate 320 is welded to the first end plate 310
  • the second positioning plate 420 is welded to the second end plate 410.
  • the positioning protrusion 321 is welded to one port of the heat exchange tube 200
  • the second positioning protrusion 421 is welded to the other port of the heat exchange tube 200, and the sealing performance is good.
  • the heat exchanger can be provided with a separate casing, so that the appearance of the heat exchanger is more beautiful, but in order to avoid the heat exchanger shell surface temperature is high, it is easy to change color, and there is a risk of burn-through, please refer to FIG.
  • the outermost two rows of the heat exchange tubes 200 constitute two outer surfaces of the heat exchanger; the outermost two rows of the heat exchange tubes 200 and the first
  • the collecting end cover 300 and the second collecting end cover 400 are collectively formed to form a frame having two openings, one opening of the frame constitutes the flue gas inlet 101, and the other opening of the frame constitutes Describe the flue gas export.
  • the radiant heat can be absorbed, so that the surface temperature of the two rows of the heat exchange tubes 200 as the outer surface is low, thereby reducing the risk of burn-through of the heat exchanger shell while saving energy;
  • An auxiliary member such as an intake flange of the auxiliary heat exchanger may be installed, and the number of the outermost two rows of the heat exchange tubes 200 may be greater than the number of the inner heat exchange tubes 200, so that the outermost two rows are
  • the heat exchange tube 200 is higher than the inner row of the heat exchange tubes 200; at this time, the outer surfaces of the two outermost heat exchange tubes 200 need not be provided with a mounting plane, and may be arranged in a circular shape such as a circular arc to avoid the stress at the place. Concentrate and reduce the risk of deformation due to pressure.
  • the heat exchanger further includes an intake flange 600 for assisting the entry of flue gas into the heat exchanger; the intake flange 600 is mounted to the flue gas. Entrance 101.
  • the auxiliary flue gas enters the flue gas passage of the heat exchanger to prevent the flue gas from leaking out.
  • the heat exchanger further includes a hood 700 for collecting combustion exhaust gas; and the hood 700 is installed at the flue gas outlet.
  • the hood 700 is integrally welded to the flue gas outlet of the heat exchanger to collect the combustion exhaust gas, which can reduce the process of collecting the exhaust gas, improve the working efficiency, and improve the sealing ability of the heat exchanger and reduce the risk of smoke leakage.
  • the invention also provides a water heater, which comprises a burner and a heat exchanger.
  • the specific structure of the heat exchanger refers to the above embodiment. Since the water heater adopts all the technical solutions of all the above embodiments, at least the above embodiment is provided. All the beneficial effects brought about by the technical solutions are not repeated here.
  • the flue gas generated by the combustion of the burner passes through the flue gas passage, and the cold water exchanges heat with the flue gas in the heat exchanger.
  • the water heater of the present invention is a fully premixed gas water heater, the flue gas inlet 101 of the heat exchanger is disposed at the upper end of the heat exchanger, and the flue gas outlet of the heat exchanger is disposed at the lower end of the heat exchanger, and the burner is disposed at the heat exchanger
  • the number of heat exchange tubes 200 and heat exchange members 100 (heat exchange fins 110) used is sufficient, and the heat exchange effect is equivalent to the sum of the common model main heat exchanger plus the condensing heat exchanger, without adding any additional structure, that is, Higher heat exchange efficiency can be achieved.
  • the water heater of the present invention may also be an atmospheric combustion type gas water heater, and the number of heat exchange tubes 200 and heat exchange members 100 (heat exchange sheets 110) used in the heat exchanger is reduced as the main heat exchanger of the water heater.

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

Abstract

L'invention concerne un échangeur de chaleur et un chauffe-eau. L'échangeur de chaleur comprend des éléments d'échange de chaleur (100), de multiples rangées de tuyaux d'échange de chaleur (200), un premier couvercle d'extrémité de collecte d'écoulement (300), et un second couvercle d'extrémité de collecte d'écoulement (400). Un espace de montage est formé entre chaque paire de rangées adjacentes de tuyaux d'échange de chaleur (200). Les éléments d'échange de chaleur (100) sont disposés dans les espaces de montage, et chaque élément d'échange de chaleur (100) est disposé en fixation aux deux tuyaux d'échange de chaleur adjacents correspondants (200) dans l'échangeur de chaleur. L'élément d'échange de chaleur (100) comprend des feuilles d'échange de chaleur (110), et les feuilles d'échange de chaleur (110) sont composées de matériaux métalliques. Les feuilles d'échange de chaleur (110) sont repliées vers l'arrière et vers l'avant dans la direction de l'épaisseur des feuilles d'échange de chaleur (110) pour présenter une forme de vague, de manière à former des saillies (111) disposées à intervalles sur les surfaces avant et les surfaces arrière des feuilles d'échange de chaleur (110). Un passage de fumée (112) est formé entre chaque paire de saillies adjacentes (111) sur la surface du même côté de chaque feuille d'échange de chaleur (110), et les passages de fumée (112) forment des canaux de fumée des éléments d'échange de chaleur (100). Les canaux de fumée de l'élément d'échange de chaleur (100) sont disposés en communication avec une admission de fumée (101) et une évacuation de fumée. Le premier couvercle d'extrémité de collecte d'écoulement (300) et le second couvercle d'extrémité de collecte d'écoulement (400) recouvrent de manière correspondante deux extrémités des multiples rangées de tuyaux d'échange de chaleur (200), et les tuyaux d'échange de chaleur correspondants (200) dans des multiples rangées de tuyaux d'échange de chaleur (200) communiquent mutuellement.
PCT/CN2016/113768 2016-01-11 2016-12-30 Échangeur de chaleur et chauffe-eau WO2017121256A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
CN201620031776.4U CN205537227U (zh) 2016-01-11 2016-01-11 换热器和热水器
CN201610021833.5A CN105486125B (zh) 2016-01-11 2016-01-11 换热器和热水器
CN201610021833.5 2016-01-11
CN201620031776.4 2016-01-11

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WO2017121256A1 true WO2017121256A1 (fr) 2017-07-20

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CN108426265A (zh) * 2018-05-10 2018-08-21 上海孚旺炉业有限公司 一种复合管烟气热水器
CN110567157A (zh) * 2019-10-15 2019-12-13 山东爱客多热能科技有限公司 一种火管式冷凝换热器
CN115312217A (zh) * 2022-06-14 2022-11-08 哈尔滨工程大学 一种采用微波浪形传热管的pcs内置高效换热器

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EP2940417A1 (fr) * 2012-12-26 2015-11-04 Kyungdong Navien Co., Ltd. Échangeur de chaleur du type à tiges/tubes
CN105486125A (zh) * 2016-01-11 2016-04-13 芜湖美的厨卫电器制造有限公司 换热器和热水器
CN205537227U (zh) * 2016-01-11 2016-08-31 芜湖美的厨卫电器制造有限公司 换热器和热水器

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CN1203355A (zh) * 1997-05-19 1998-12-30 株式会社杰克赛尔 热交换器
CN201652761U (zh) * 2010-02-08 2010-11-24 铜联商务咨询（上海）有限公司 一种燃气热水器
EP2940417A1 (fr) * 2012-12-26 2015-11-04 Kyungdong Navien Co., Ltd. Échangeur de chaleur du type à tiges/tubes
CN203115975U (zh) * 2013-03-08 2013-08-07 河南永兴锅炉集团有限公司 铸铁斜片式省煤器
CN105486125A (zh) * 2016-01-11 2016-04-13 芜湖美的厨卫电器制造有限公司 换热器和热水器
CN205537227U (zh) * 2016-01-11 2016-08-31 芜湖美的厨卫电器制造有限公司 换热器和热水器

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108426265A (zh) * 2018-05-10 2018-08-21 上海孚旺炉业有限公司 一种复合管烟气热水器
CN110567157A (zh) * 2019-10-15 2019-12-13 山东爱客多热能科技有限公司 一种火管式冷凝换热器
CN115312217A (zh) * 2022-06-14 2022-11-08 哈尔滨工程大学 一种采用微波浪形传热管的pcs内置高效换热器

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