WO2017121256A1 - Heat exchanger and water heater - Google Patents
Heat exchanger and water heater Download PDFInfo
- 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
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- heat exchange
- flue gas
- heat exchanger
- heat
- exchanger according
- Prior art date
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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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Abstract
A heat exchanger and a water heater. The heat exchanger comprises heat exchange components (100), multiple rows of heat exchange pipes (200), a first flow collection end cover (300), and a second flow collection end cover (400). A mounting gap is formed between every two adjacent rows of heat exchange pipes (200). The heat exchange components (100) are disposed in the mounting gaps, and each heat exchange component (100) is disposed in attachment to the corresponding two adjacent heat exchange pipes (200) in the heat exchanger. The heat exchange component (100) comprises heat exchange sheets (110), and the heat exchange sheets (110) are made of metal materials. The heat exchange sheets (110) are bent back and forth in the thickness direction of the heat exchange sheets (110) to form a wave shape, so as to form protrusions (111) disposed at intervals on the front surfaces and the back surfaces of the heat exchange sheets (110). A smoke passage (112) is formed between every two adjacent protrusions (111) on the surface of the same side of each heat exchange sheet (110), and the smoke passages (112) form smoke channels of the heat exchange components (100). The smoke channels of the heat exchange component (100) are disposed in communication with a smoke inlet (101) and a smoke outlet. The first flow collection end cover (300) and the second flow collection end cover (400) correspondingly cover two ends of the multiple rows of heat exchange pipes (200), and the corresponding heat exchange pipes (200) in the multiple rows of heat exchange pipes (200) are communicated with each other.
Description
技术领域Technical field
本发明涉及热水器技术领域,特别涉及一种换热器和热水器。The invention relates to the technical field of water heaters, in particular to a heat exchanger and a water heater.
背景技术Background technique
目前燃气热水器行业使用的换热器,通过换热管和换热翅片进行换热,换热管穿过换热翅片构成换热主体,换热翅片为平整的薄板,强化换热的方式主要为在薄板上加压型或者翻边孔对烟气流向进行干扰,该换热翅片在烟气流动方向上对烟气没有导流效果,无法引导烟气与换热翅片充分接触,并且换热翅片与烟气接触的换热面积也比较小,因而现有的换热器的换热效率较低。
At present, 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. And 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.
发明内容Summary of the invention
本发明的主要目的是提供一种换热器,旨在提高换热器的换热效率。The main object of the present invention is to provide a heat exchanger aimed at improving the heat exchange efficiency of the heat exchanger.
为实现上述目的,本发明提出的换热器,具有烟气入口和烟气出口,所述换热器包括换热件、多排换热管,以及第一集流端盖和第二集流端盖;To achieve the above object, 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
相邻排的所述换热管之间形成安装间隙,所述安装间隙的相对的两侧对应所述换热器的烟气入口和烟气出口,所述换热件设于所述安装间隙中,且贴接所述换热器中相邻的两排换热管设置;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;
所述换热件包括换热片,所述换热片由金属材料制得;所述换热片在其厚度方向来回弯折形成波浪型,以在所述换热片的正反两面上均形成间隔设置的***部;位于所述换热片的同一侧的表面上的相邻两个所述***部之间形成有烟气过道,所述烟气过道构成所述换热件的烟气通道;所述换热件的烟气通道连通所述烟气入口和烟气出口设置;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;
所述第一集流端盖和第二集流端盖对应与所述多排换热管的两端盖设,且将所述多排换热管中对应的所述换热管连通。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.
优选地,所述烟气过道在其延伸方向上呈直线型设置、波浪型设置或折线型设置。Preferably, the flue gas passage is arranged in a straight line shape, a wave type setting or a line type in the extending direction thereof.
优选地,所述***部设有用以与所述换热管贴接的第一安装平面。Preferably, the ridge portion is provided with a first mounting plane for attaching to the heat exchange tube.
优选地,所述换热件包括多个所述换热片,多个所述换热片依次拼接,且多个所述换热片的烟气过道连通形成所述烟气通道。Preferably, 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.
优选地,所述烟气通道呈弯曲或弯折设置。Preferably, the flue gas passage is curved or bent.
优选地,多个所述换热片中,位于相邻两个所述换热片的不同侧的表面上的烟气过道对接,以形成所述烟气通道。Preferably, among the plurality of heat exchange sheets, 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.
优选地,多个所述换热片中,一所述换热片的烟气过道相对于与该烟气过道对接的另一所述换热片的烟气过道呈倾斜设置。Preferably, among the plurality of heat exchange sheets, 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.
优选地,所述烟气通道在进气方向上呈弯折设置。Preferably, the flue gas passage is bent in the intake direction.
优选地,所述换热片由不锈钢制的。Preferably, the heat exchange sheet is made of stainless steel.
优选地,所述换热管为扁平管。Preferably, the heat exchange tube is a flat tube.
优选地,所述换热管的横截面为圆形、椭圆形或方形。Preferably, the heat exchange tube has a circular, elliptical or square cross section.
优选地,所述换热管的外表面具有用以与所述换热片贴接的第二安装平面。Preferably, the outer surface of the heat exchange tube has a second mounting plane for attaching to the heat exchange sheet.
优选地,每一排所述换热管集成于一换热管集成板中,所述换热管集成板包括两个相互贴合的层接板,至少其中一所述层接板多次向外侧***,以在该层接板的内侧形成有多个并排间隔设置的凹槽,多个所述凹槽自所述层接板的一端延伸至所述层接板的另一端,多个所述凹槽与另一层间板围设形成一排所述换热管。Preferably, each row of the heat exchange tubes is integrated in a heat exchange tube integrated board, and 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.
优选地,所述两个层接板由一板体对折而形成。Preferably, the two laminates are formed by folding one plate.
优选地,所述第一集流端盖包括安装于所述多排换热管一端的第一端板,所述第二集流端盖包括安装于所述多排换热管另一端的第二端板;所述第一端板上设有用以连通对应的所述换热管的第一导流槽,所述第二端板上设有用以连通对应的所述换热管的第二导流槽。Preferably, the first current collecting end cover comprises a first end plate mounted on one end of the plurality of rows of heat exchange tubes, and 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.
优选地,所述第一集流端盖还包括设于第一端板内侧并与第一端板相连接的第一定位板,所述第一定位板上对应每一所述换热管设置一个第一定位凸起,所述第一定位凸起伸入对应的所述换热管内,所述第一定位凸起上开设有连通所述第一导流槽和所述换热管的第一通孔;Preferably, 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
所述第二集流端盖还包括设于第二端板内侧并与第二端板相连接的第二定位板,所述第二定位板上对应每一所述换热管设置一个第二定位凸起,所述第二定位凸起伸入对应的所述换热管内,所述第二定位凸起上开设有连通所述第二导流槽和所述换热管的第二通孔。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 .
优选地,设于最外侧的两排所述换热管构成所述换热器的两个外表面;设于最外侧的两排所述换热管与所述第一集流端盖、第二集流端盖共同围设形成具有两个开口的框体,所述框体的一个开口构成所述烟气入口,所述框体的另一个开口构成所述烟气出口。Preferably, 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.
优选地,所述的换热器还包括用以辅助烟气进入所述换热器的进气法兰;所述进气法兰安装于所述烟气入口处。Preferably, 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.
优选地,所述的换热器还包括用以收集燃烧废气的集烟罩;所述集烟罩安装于所述烟气出口处。Preferably, the heat exchanger further comprises a collecting hood for collecting combustion exhaust gas; the collecting hood is installed at the flue gas outlet.
发明还提出一种热水器,包括燃烧器及换热器,所述换热器包括换热件、多排换热管,以及第一集流端盖和第二集流端盖;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;
相邻排的所述换热管之间形成安装间隙,所述安装间隙的相对的两侧对应所述换热器的烟气入口和烟气出口,所述换热件设于所述安装间隙中,且贴接所述换热器中相邻的两排换热管设置;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;
所述换热件包括换热片;所述换热片在其厚度方向来回弯折形成波浪型,以在所述换热片的正反两面上均形成间隔设置的***部;位于所述换热片的同一侧的表面上的相邻两个所述***部之间形成有烟气过道,所述烟气过道构成所述换热件的烟气通道;所述换热件的烟气通道连通所述烟气入口和烟气出口设置;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;
所述第一集流端盖和第二集流端盖对应与所述多排换热管的两端盖设,且将所述多排换热管中对应的所述换热管连通;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;
所述燃烧器燃烧产生的烟气从所述烟气通道内通过。The flue gas generated by the combustion of the burner passes through the flue gas passage.
本发明技术方案的换热器中,高温烟气由烟气入口进入烟气通道,冷水在换热管中流动并在第一集流端盖、第二集流端盖中进行绕流,高温烟气和冷水通过换热管和换热片的接触进行换热;其中,换热片设置成波浪型,在换热片的正反两面上均形成间隔设置的***部,同一侧的表面上相邻两个***部之间形成有烟气过道,高温烟气可以分散在多个烟气过道中流动,并与换热片和与换热片贴接的换热管进行热交换;由于换热片上形成了多个***部,本发明换热器的换热片相较于同等长宽的普通换热片而言,表面积更大,也就是说相较于使用同等长宽的普通换热片的换热器而言,本发明的换热器的总换热面积更大,因而本发明的换热器可以有效提高换热效率;同时,每个烟气过道内的高温烟气都被换热片和与换热片贴接的换热管包围,在烟气通道中与换热片和相应的换热管进行充分的接触,进一步提高换热效率;同时,通过多个烟气过道将高温烟气进行分散和导流,引导高温烟气流动,可以使高温烟气均匀流动,从而使换热器的换热更均匀,换热效果更好。由于换热件的换热片呈波浪型设置,本发明的换热器中换热片与换热管贴接设置即可形成烟道,安装时只需要将换热片的正反面与对应换热管焊接即可,因此相对于现有的换热器的换热管穿过换热翅片的结构而言,本发明的换热器结构更简单,安装更容易。In the heat exchanger of the technical solution of the present invention, 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; wherein 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 using the same length and width. In the heat exchanger of the sheet, 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; at the same time, 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; at the same time, 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. Since 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.
附图说明DRAWINGS
为了更清楚地说明本发明实施例或现有技术中的技术方案,下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍,显而易见地,下面描述中的附图仅仅是本发明的一些实施例,对于本领域普通技术人员来讲,在不付出创造性劳动的前提下,还可以根据这些附图示出的结构获得其他的附图。In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the description of the prior art will be briefly described below. Obviously, the drawings in the following description are only It is a certain embodiment of the present invention, and those skilled in the art can obtain other drawings according to the structures shown in the drawings without any creative work.
图1为本发明换热器一实施例的结构示意图;1 is a schematic structural view of an embodiment of a heat exchanger according to the present invention;
图2为图1中换热器的俯视角度结构示意图;2 is a schematic plan view showing the structure of the heat exchanger of FIG. 1;
图3为图1中换热器的另一视角的分解结构示意图;3 is a schematic exploded view of another perspective view of the heat exchanger of FIG. 1;
图4为图1中换热器的换热件与换热管的装配结构示意图;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;
图5为图1中换热器的换热件的结构示意图;Figure 5 is a schematic structural view of a heat exchange member of the heat exchanger of Figure 1;
图6为图5中换热件的换热片的结构示意图;6 is a schematic structural view of a heat exchange sheet of the heat exchange member of FIG. 5;
图7为图6中换热片的另一视角的结构示意图;7 is a schematic structural view of another perspective view of the heat exchange sheet of FIG. 6;
图8为图1中换热器的换热管集成板的结构示意图;8 is a schematic structural view of a heat exchange tube integrated plate of the heat exchanger of FIG. 1;
图9为图8中换热管集成板的展开结构示意图;9 is a schematic exploded view of the heat exchange tube integrated board of FIG. 8;
图10为图1中换热器的第一集流端盖的第一定位板的结构示意图;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;
图11为图1中换热器的第二集流端盖的第二端板的结构示意图。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.
附图标号说明:Description of the reference numerals:
标号Label | 名称name | 标号Label | 名称name |
100100 | 换热件Heat exchanger | 200200 | 换热管Heat exchange tube |
300300 | 第一集流端盖First current collector cover | 400400 | 第二集流端盖Second current collecting end cover |
110110 | 换热片Heat exchange sheet | 111111 | ***部Uplift |
112112 | 烟气过道Smoke aisle | 201201 | 第二安装平面Second mounting plane |
500500 | 换热管集成板Heat exchange tube integrated board | 510510 | 层接板Laminate |
511511 | 凹槽Groove | 310310 | 第一端板First end plate |
311311 | 第一导流槽First channel | 320320 | 第一定位板First positioning plate |
321321 | 第一定位凸起First positioning projection | 322322 | 第一通孔First through hole |
410410 | 第二端板Second end plate | 411411 | 第二导流槽Second guide channel |
420420 | 第二定位板Second positioning plate | 421421 | 第二定位凸起Second positioning projection |
600600 | 进气法兰Intake flange | 700700 | 集烟罩Cigarette cover |
101101 | 烟气入口Smoke inlet |
本发明目的的实现、功能特点及优点将结合实施例,参照附图做进一步说明。The implementation, functional features, and advantages of the present invention will be further described in conjunction with the embodiments.
具体实施方式detailed description
下面将结合本发明实施例中的附图,对本发明实施例中的技术方案进行清楚、完整地描述,显然,所描述的实施例仅仅是本发明的一部分实施例,而不是全部的实施例。基于本发明中的实施例,本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例,都属于本发明保护的范围。The technical solutions in the embodiments of the present invention are clearly and completely described in the following with reference to the accompanying drawings in the embodiments of the present invention. It is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention.
需要说明,本发明实施例中所有方向性指示(诸如上、下、左、右、前、后……)仅用于解释在某一特定姿态(如附图所示)下各部件之间的相对位置关系、运动情况等,如果该特定姿态发生改变时,则该方向性指示也相应地随之改变。It should be noted that all directional indications (such as up, down, left, right, front, back, ...) in the embodiments of the present invention are only used to explain between components in a certain posture (as shown in the drawing). Relative positional relationship, motion situation, etc., if the specific posture changes, the directional indication also changes accordingly.
另外,在本发明中涉及“第一”、“第二”等的描述仅用于描述目的,而不能理解为指示或暗示其相对重要性或者隐含指明所指示的技术特征的数量。由此,限定有“第一”、“第二”的特征可以明示或者隐含地包括至少一个该特征。另外,各个实施例之间的技术方案可以相互结合,但是必须是以本领域普通技术人员能够实现为基础,当技术方案的结合出现相互矛盾或无法实现时应当认为这种技术方案的结合不存在,也不在本发明要求的保护范围之内。In addition, the descriptions of "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. Thus, features defining "first" or "second" may include at least one of the features, either explicitly or implicitly. In addition, 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.
本发明提出一种换热器。请参阅图1至图3,其中,图1为本发明换热器一实施例的结构示意图;图2为图1中换热器的俯视角度结构示意图;图3为图1中换热器的另一视角的分解结构示意图。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. A schematic diagram of the decomposition structure of another perspective.
请参阅图1至图4,在本发明实施例中,该换热器具有烟气入口101和烟气出口,所述换热器包括换热件100、多排换热管200,以及第一集流端盖300和第二集流端盖400;Referring to FIG. 1 to FIG. 4, in the embodiment of the present invention, 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;
相邻排的所述换热管200之间形成安装间隙,所述安装间隙的相对的两侧对应所述换热器的烟气入口101和烟气出口,所述换热件100设于所述安装间隙中,且贴接换热器中相邻的两排换热管200设置;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;
请参阅图6和图7,所述换热件100包括换热片110,所述换热片100由金属材料制得;所述换热片110在其厚度方向来回弯折形成波浪型,以在所述换热片110的正反两面上均形成间隔设置的***部111;位于所述换热片110的同一侧的表面上的相邻两个所述***部111之间形成有烟气过道112,所述烟气过道112构成所述换热件100的烟气通道;所述换热件100的烟气通道连通所述烟气入口101和烟气出口设置;Referring to FIG. 6 and FIG. 7 , 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. In the passage 112, 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;
所述第一集流端盖300和第二集流端盖400对应与所述多排换热管200的两端盖设,且将所述多排换热管200中对应的所述换热管200连通。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.
本发明技术方案的换热器中,高温烟气由烟气入口101进入烟气通道,冷水在换热管200中流动并在第一集流端盖300、第二集流端盖400中进行绕流,高温烟气和冷水通过换热管200和换热片110的接触进行换热;其中,换热片110设置成波浪型,在换热片110的正反两面上均形成间隔设置的***部111,同一侧的表面上相邻两个***部111之间形成有烟气过道112,高温烟气可以分散在多个烟气过道112中流动,并与换热片110和与换热片110贴接的换热管200进行热交换;由于换热片110上形成了多个***部111,本发明换热器的换热片110相较于同等长宽的普通换热片而言,表面积更大,也就是说相较于使用同等长宽的普通换热片的换热器而言,本发明的换热器的总换热面积更大,因而本发明的换热器可以有效提高换热效率;同时,每个烟气过道112内的高温烟气都被换热片110和与换热片110贴接的换热管200包围,在烟气通道中与换热片110和相应的换热管200进行充分的接触,进一步提高换热效率;同时,通过多个烟气过道112将高温烟气进行分散和导流,引导高温烟气流动,可以使高温烟气均匀流动,从而使换热器的换热更均匀,换热效果更好。由于换热件100的换热片110呈波浪型设置,本发明的换热器中换热片110与换热管200贴接设置即可形成烟道,安装时只需要将换热片110的正反面与对应换热管200焊接即可,因此相对于现有的换热器的换热管穿过换热翅片的结构而言,本发明的换热器结构更简单,安装更容易。In the heat exchanger of the technical solution of the present invention, 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 flow, the high-temperature flue gas and the cold water exchange heat through the contact of the heat exchange tube 200 and the heat exchange sheet 110; wherein, the heat exchange sheet 110 is disposed in a wave shape, and is formed at intervals on both the front and back sides of the heat exchange sheet 110. 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. Since 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.
所述换热片110的材质可以是铜、铝等导热性能较好的金属,也可以是耐腐蚀性能比较好的不锈钢。本发明中换热件100由不锈钢制得,由于本发明使用不锈钢材料,可以提升换热器耐腐蚀性和耐高温性能,进而提升热水器安全使用年限,更好的保障用户的安全,同时,由于本发明的换热片110的换热面积大换热效率高,因此使用导热性能一般的不锈钢制得,也可达到较好的换热效果。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. In the present invention, 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.
实际使用中,可以根据换热器的换热效率的需要,设置换热件100的换热片110的数量及每个换热片110上的烟气过道112的形状和延伸方向;例如,在换热效率要求低的时候,可以设置较少的换热片110和换热管200,每个换热片110的烟气过道112的形状为直线型、且烟气过道112的延伸方向与进气方向平行,从而减少换热器的体积和重量;又例如,在换热效率要求高的时候,可以设置较多的换热片110和换热管200,每个换热片110的烟气过道112的形状为波浪型或折线型、且烟气过道112的延伸方向与进气方向呈不为0°的夹角。In actual use, 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.
高温烟气在烟气过道112内沿烟气过道112的延伸方向流动,烟气过道112的形状决定高温烟气的流向,烟气过道112的形状可以根据需要进行设置;例如,所述烟气过道112在其延伸方向上呈直线型设置、波浪型设置或折线型设置。可综合烟气过道112的阻力和换热效果考虑,调整通道的形状和同一侧的表面相邻两个***部111之间间距;如阻力较大,则可设置烟气过道112为直线型,同时加大相邻两个***部111之间间距;如换热效率要求较高,则减小相邻两个***部111之间间距,设置烟气过道112为波浪型或折线型;同时还可以通过调节烟气过道112与高温烟气的进气方向(如虚线箭头所示)之间的角度,调整高温烟气在烟气过道112中流动的阻力,例如,高温烟气的进气方向与烟气过道112的延伸方向的夹角越大,则阻力越大;其中直线型设置时,容易制备,呈波浪型或折线型设置时,可以增加高温烟气在烟气过道112中的总行程,从而增加换热时间,提高换热效果;请参阅图6和图7,在本实施例中,考虑制备的难易程度,该烟气过道112在其延伸方向上呈直线型设置。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. At the same time, 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 larger the angle with the extending direction of the flue gas passage 112, the greater the resistance; wherein the linear type is easy to prepare, and when the wave type or the broken line type is set, the total amount of the high temperature flue gas in the flue gas passage 112 can be increased. The stroke, thereby increasing the heat exchange time, and improving the heat exchange effect; referring to Fig. 6 and Fig. 7, in the present embodiment, considering the ease of preparation, the flue gas passage 112 is linearly arranged in the extending direction thereof.
由于本发明的换热件100与换热管200贴接,为了两者安装时更牢固和平稳,优选地,所述***部111设有用以与所述换热管200贴接的第一安装平面(未图示),换热件100与换热管200贴接时,第一安装平面贴接换热管200的外壁,接触面积较大,导热效果好且安装可靠性较高,同时,与换热件100装配的换热管200连接面也应该是平整面,使换热管200和换热件100的连接更为方便、牢固。Since the heat exchange member 100 of the present invention is attached to the heat exchange tube 200, in order to make the two components more firm and stable during installation, preferably, the ridge portion 111 is provided with a first installation for attaching to the heat exchange tube 200. In the plane (not shown), when the heat exchange member 100 is attached 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.
换热件100可以只包括一片换热片110;也可以包括多个换热片110,其中,只包括一片换热片110时,所述换热件100的烟气通道是由一个换热片110的烟气过道112直接构成;请参阅图4和图5,在本实施例中,优选地,所述换热件100包括多个换热片110,多个所述换热片110依次拼接,且多个所述换热片110的烟气过道112连通形成所述过烟气通道。设置多个换热片110,多个换热片110的烟气过道112拼接形成的烟气通道,因而可以在每一个换热片110的烟气过道112的延伸方向和形状较为简单的前提下,通过对多个换热片110的烟气过道112的延伸方向和形状的灵活设置,改变拼接形成的烟气通道的延伸方向和形状;从而适应换热器的换热件100的换热需求。The heat exchange member 100 may include only one heat exchange sheet 110; or may include a plurality of heat exchange sheets 110. When only one heat exchange sheet 110 is included, 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. By flexibly setting the extending direction and shape of the flue gas passages 112 of the plurality of heat exchange fins 110, the extending direction and shape of the flue gas passage formed by the splicing are changed; thereby adapting to the heat exchange requirement of the heat exchanger 100 of the heat exchanger .
为了增加高温烟气在烟气通道内的行程,优选地,所述烟气通道呈弯曲或弯折设置。其中,烟气通道的弯曲或弯折设置,可以通过调节不同的换热片110的烟气过道112的延伸方向来实现,例如可以设置相邻两个烟气过道112的延伸方向呈不为0°的夹角;烟气通道的弯曲或弯折设置,还可以通过调节不同的换热片110的烟气过道112的形状来实现,例如换热片110的烟气过道112呈弯曲或弯折设置。高温烟气在弯曲或弯折的烟气通道内流动,高温烟气的行程更长,同时高温烟气受到的阻力增大,流速减慢,因而高温烟气与换热片110的换热时间更长、换热面积更大,因此能够有效提高换热效率。In order to increase the stroke of the high temperature flue gas in the flue gas passage, preferably, 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. For example, 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.
多个换热片110进行拼接时,实现相邻两个换热片110的烟气过道112相连通的方式有多种,请参阅图4和图5,在本实施例中,优选地,多个所述换热片110中,位于相邻两个所述换热片110的不同侧的表面上的烟气过道112对接,以形成所述烟气通道。高温烟气可以从前一个换热片110的烟气过道112进入下一个换热片110的烟气过道112,由于该两个烟气过道112位于换热件100的不同侧,也就是说高温烟气可以与位于换热件100的不同侧的换热管200进行热交换,有利于使用该换热件100的换热器的均匀换热。When the plurality of heat exchange sheets 110 are spliced, there are various ways to realize the communication of the flue gas passages 112 of the adjacent two heat exchange sheets 110. Referring to FIG. 4 and FIG. 5, in the embodiment, preferably, Among the 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.
在另一实施例中,多个所述换热片110中,位于相邻两个所述换热片110的同一侧的表面上的烟气过道112对接,以形成所述烟气通道。这种设置方式也能够实现相邻两个换热片110的烟气过道112的连通,进而为高温烟气的流动进行导流。In another embodiment, among the plurality of heat exchange sheets 110, 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.
请参阅图4和图5,在本实施例中,优选地,多个所述换热片110中,一所述换热片110的烟气过道112相对于与该烟气过道112对接的另一所述换热片110的烟气过道112呈倾斜设置。即相邻两个烟气过道112的延伸方向呈不为0°的夹角,此时,会使得该烟气通道在两烟气过道112连接处弯折,高温烟气在弯折的烟气通道内流动,其行程更长,同时高温烟气受到的阻力增大,流速减慢,因而高温烟气与换热片110的换热时间更长、换热面积更大,因此能够有效提高换热效率。Referring to FIG. 4 and FIG. 5, in the embodiment, preferably, among the plurality of heat exchange sheets 110, 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.
为了提高换热效率,优选地,所述烟气通道在进气方向上呈弯折设置。考虑到弯折的角度过大会影响流动阻力,请参阅图4和图5,在本实施例中,该烟气通道的靠近进气口的烟气过道112的延伸方向与进气方向呈30°夹角,相邻两个烟气过道112的延伸方向呈120°的夹角,此时,不会对进入烟气通道的高温烟气产生太大的阻力,同时又具有延长烟气通道总程的效果。In order to improve the heat exchange efficiency, preferably, 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.
请参阅图4,优选地,所述换热管200为扁平管。换热管200为扁平管则换热管200中心区域离热量源较近,可能管壁处水温和中心区域水温的温度差距小,不会由于水流温度分布不均,导致容易结垢及水流噪音等不良后果;无需增加弹簧圈、麻花片、及扰流棒等扰流结构,也能够使该换热管200中的水换热更为均匀,相对于现有的换热管而言,成本更低、工艺更简单。Referring to FIG. 4, preferably, 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.
当然,换热管200也不仅仅限于扁平管,例如在本发明的另一些实施例中,所述换热管200的横截面为圆形、椭圆形或方形。换热管200的实际设置情况可以根据需要进行选取,本发明不对此进行限制。Of course, 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.
由于本发明的所述换热管200与换热片110贴接,为了两者安装时更牢固和平稳,请参阅图4和图8,优选地,所述换热管200的外表面具有用以与所述换热片110贴接的第二安装平面201。第二安装平面201贴接换热片110的设置,接触面积较大,导热效果好且安装可靠性较高,同时,与换热管200配合的换热片110的连接面也应该是平整面,使换热管200和换热片110的连接更为方便、牢固。Since the heat exchange tube 200 of the present invention is attached to the heat exchange sheet 110, in order to be more firm and stable during installation, please refer to FIG. 4 and FIG. 8, preferably, 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. Meanwhile, 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.
请参阅图8和图9,为了简化换热管200的安装,优选地,每一排所述换热管200集成于一换热管集成板500中,所述换热管集成板500包括两个相互贴合的层接板510,至少其中一所述层接板510多次向外侧***,以在该层接板510的内侧形成有多个并排间隔设置的凹槽511,多个所述凹槽511自所述层接板510的一端延伸至所述层接板510的另一端,多个所述凹槽511与另一层间板围设形成一排所述换热管200。将多个换热管200集成到板状的换热管集成板500内,使得换热管集成板500可以代替原有的一排换热管200应用于换热器中,而且仅仅使用几块换热管集成板500就能够为提供较多的换热管200,将该换热管集成板500安装到换热器中时,由于单个换热管集成板500的体积较大,因此定位容易,由于换热器中换热管集成板500的数量较少,因此安装工序较少,操作更简单。具体的,层接板510的***可以通过压型工艺形成,可以一个层接板510设置***;也可以在两个层接板510对应的位置均形成***,对应的两个凹槽511共同围设形成换热管200;实际操作中,层接板510的设置情况视换热管200的需要而定。两个层接板510焊接固定,每个换热管集成板500仅仅在层接板510的边沿焊接位置存在漏水风险,而现有的换热管200在焊接位置均有漏水风险,因而相对于使用多根独立的换热管200而言,本发明的换热管集成板500的漏水的风险明显较低。Referring to FIG. 8 and FIG. 9 , in order to simplify the installation of the heat exchange tubes 200 , preferably, 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. When the heat exchange tube integrated plate 500 is installed in the heat exchanger, the positioning is easy due to the large volume of the single heat exchange tube integrated plate 500. Since the number of heat exchange tube integrated plates 500 in the heat exchanger is small, the installation process is less and the operation is simpler. Specifically, 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. The two lamination plates 510 are welded and fixed, and 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.
两个层接板510可以是两个独立的板体,也可以是由同一板体对折而形成。请参阅图9,在本实施中,为了进一步简化工艺,优选地,所述两个层接板510由一板体对折而形成。因而,两个层接板510有一条边原本就连接在一起,无需焊接,成型工艺得到简化,而且漏水风险也进一步降低。该板体从虚线处对折,虚线的两侧分别形成一个层接板510。The two landing plates 510 may be two independent plates or may be formed by folding the same plate. Referring to FIG. 9, in the present embodiment, in order to further simplify the process, preferably, 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.
第一集流端盖300和第二集流端盖400用以导通不同的换热管200,使水流进行绕流,进入不同的换热管200中,从而使得水流可以流经所有换热管200,实现均匀换热;它们实现导通不同的换热管200的方式有很多,例如设置与换热管200连通的U型管或多通管;为了达到更好的导流效果,并简化安装操作,请参阅图1至图3,以及图11,在本实施例中,优选地,所述第一集流端盖300包括安装于所述多排换热管200一端的第一端板310,所述第二集流端盖400包括安装于所述多排换热管200另一端的第二端板410;所述第一端板310上设有用以连通对应的所述换热管200的第一导流槽311,所述第二端板410上设有用以连通对应的所述换热管200的第二导流槽411。通过上述设置方式,第一集流端盖300和第二集流端盖400安装时,只需要将换热管200与对应的导流槽对接即可,结构简单并且安装操作非常的方便。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. In the embodiment, preferably, 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. When the first current collecting end cover 300 and the second current collecting end cover 400 are installed, the heat exchange tube 200 only needs to be docked with the corresponding flow guiding groove, and the structure is simple and the installation operation is very convenient.
请参阅图1至图3,以及图10,优选地,所述第一集流端盖300还包括设于第一端板310内侧并与第一端板310相连接的第一定位板320,所述第一定位板320上对应每一所述换热管200设置一个第一定位凸起321,所述第一定位凸起321伸入对应的所述换热管200内,所述第一定位凸起321上开设有连通所述第一导流槽311和所述换热管200的第一通孔322;所述第二集流端盖400还包括设于第二端板410内侧并与第二端板410相连接的第二定位板420,第二定位板420上对应每一所述换热管200设置一个第二定位凸起421,所述第二定位凸起421伸入对应的所述换热管200内,所述第二定位凸起421上开设有连通所述第二导流槽411和所述换热管200的第二通孔(未图示)。通过第一定位板320和第二定位板420分别定位换热管200的两端,并通过第一定位凸起321和第二定位凸起421与换热管200连接,第一通孔322连通所述第一导流槽311和所述换热管200,第二通孔连通所述第二导流槽411和所述换热管200,实现集流和绕流的作用。在本实施例中,换热管200与换热件100的换热片110焊接,第一定位板320与第一端板310焊接,第二定位板420与第二端板410焊接,第一定位凸起321与换热管200的一端口焊接,第二定位凸起421与换热管200的另一端口焊接,密封性能好。Referring to FIG. 1 to FIG. 3 , and FIG. 10 , 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. In the heat exchange tube 200, 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. In this embodiment, 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, and 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, and the second positioning protrusion 421 is welded to the other port of the heat exchange tube 200, and the sealing performance is good.
该换热器可以设置独立的壳体,使得换热器的外观更美观,但为了避免热交换器壳体表面温度较高,容易变色,有烧穿风险的问题,请参阅图1,在本实施例中,优选地,设于最外侧的两排所述换热管200构成所述换热器的两个外表面;设于最外侧的两排所述换热管200与所述第一集流端盖300、第二集流端盖400共同围设形成具有两个开口的框体,所述框体的一个开口构成所述烟气入口101,所述框体的另一个开口构成所述烟气出口。由于换热管200中有水流通过,可以吸收辐射热量,因而作为外表面的两排所述换热管200的表面温度较低,在节约能源的同时降低热交换器壳体烧穿风险;为了辅助安装换热器的进气法兰等原件,可以将最外侧的两排所述换热管200的数量多于内侧的所述换热管200的数量,以使得最外侧的两排所述换热管200高于内侧的几排换热管200;此时最外侧的两个所述换热管200的外表面无需设置安装平面,可以设置成圆弧等圆润形状,避免该处的应力集中,降低由于承受压力而变形的风险。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. In an embodiment, preferably, 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. Since the water flow in the heat exchange tube 200 passes, 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.
请参阅图1至图3,进一步地,所述的换热器还包括用以辅助烟气进入所述换热器的进气法兰600;所述进气法兰600安装于所述烟气入口101处。通过设置进气法兰600与热水器的燃烧器相连通,辅助烟气进入换热器的烟气通道,避免烟气外泄。Referring to FIG. 1 to FIG. 3, further, 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. By providing the intake flange 600 to communicate with the burner of the water heater, the auxiliary flue gas enters the flue gas passage of the heat exchanger to prevent the flue gas from leaking out.
请参阅图1和图3,进一步地,所述的换热器还包括用以收集燃烧废气的集烟罩700;所述集烟罩700安装于所述烟气出口处。集烟罩700一体焊接在换热器的烟气出口,收集燃烧废气,可以减少收集废气的工序,提升工作效率,并可提升换热器的密封能力,降低漏烟风险。Referring to FIG. 1 and FIG. 3, further, 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.
本发明还提出一种热水器,该热水器包括燃烧器和换热器,该换热器的具体结构参照上述实施例,由于本热水器采用了上述所有实施例的全部技术方案,因此至少具有上述实施例的技术方案所带来的所有有益效果,在此不再一一赘述。其中,所述燃烧器燃烧产生的烟气从所述烟气通道内通过,冷水与烟气在换热器中进行热交换。本发明的热水器是全预混燃气热水器,换热器的烟气入口101设于换热器的上端,而换热器的烟气出口设于换热器的下端,燃烧器设于换热器的上方,所用的换热管200及换热件100(换热片110)数量足够,换热效果相当于普通机型主热交换器加冷凝热交换器之和,无需添加任何额外结构,即可达到较高的换热效率。本发明的热水器还可以是大气燃烧式燃气热水器,减少换热器所用的换热管200及换热件100(换热片110)数量作为热水器的主热交换器使用。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. Wherein, 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 Above, 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.
以上所述仅为本发明的优选实施例,并非因此限制本发明的专利范围,凡是在本发明的发明构思下,利用本发明说明书及附图内容所作的等效结构变换,或直接/间接运用在其他相关的技术领域均包括在本发明的专利保护范围内。The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the invention, and the equivalent structural transformation, or direct/indirect use, of the present invention and the contents of the drawings are used in the inventive concept of the present invention. It is included in the scope of the patent protection of the present invention in other related technical fields.
Claims (20)
- 一种换热器,具有烟气入口和烟气出口,其特征在于,所述换热器包括换热件、多排换热管,以及第一集流端盖和第二集流端盖; a heat exchanger having a flue gas inlet and a flue gas outlet, wherein the heat exchanger comprises 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;相邻排的所述换热管之间形成安装间隙,所述安装间隙的相对的两侧对应所述换热器的烟气入口和烟气出口,所述换热件设于所述安装间隙中,且贴接所述换热器中相邻的两排换热管设置;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;所述换热件包括换热片,所述换热片由金属材料制得;所述换热片在其厚度方向来回弯折形成波浪型,以在所述换热片的正反两面上均形成间隔设置的***部;位于所述换热片的同一侧的表面上的相邻两个所述***部之间形成有烟气过道,所述烟气过道构成所述换热件的烟气通道;所述换热件的烟气通道连通所述烟气入口和烟气出口设置;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;所述第一集流端盖和第二集流端盖对应与所述多排换热管的两端盖设,且将所述多排换热管中对应的所述换热管连通。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.
- 如权利要求1所述的换热器,其特征在于,所述烟气过道在其延伸方向上呈直线型设置、波浪型设置或折线型设置。The heat exchanger according to claim 1, wherein said flue gas passage is linearly disposed, wavy, or polygonal in its extending direction.
- 如权利要求1所述的换热器,其特征在于,所述***部设有用以与所述换热管贴接的第一安装平面。The heat exchanger according to claim 1, wherein said ridge portion is provided with a first mounting plane for attaching to said heat exchange tube.
- 如权利要求1所述的换热器,其特征在于,所述换热件包括多个所述换热片,多个所述换热片依次拼接,且多个所述换热片的烟气过道连通形成所述烟气通道。The heat exchanger according to claim 1, wherein said heat exchange member comprises a plurality of said heat exchange sheets, said plurality of heat exchange sheets are sequentially joined, and a plurality of said heat exchange sheets are smoked The passageway communicates to form the flue gas passage.
- 如权利要求4所述的换热器,其特征在于,所述烟气通道呈弯曲或弯折设置。The heat exchanger according to claim 4, wherein said flue gas passage is curved or bent.
- 如权利要求4所述的换热器,其特征在于,多个所述换热片中,位于相邻两个所述换热片的不同侧的表面上的烟气过道对接,以形成所述烟气通道。The heat exchanger according to claim 4, wherein among the plurality of heat exchange sheets, flue gas passages on surfaces on different sides of adjacent two of said heat exchange sheets are butted to form said Smoke passage.
- 如权利要求6所述的换热器,其特征在于,多个所述换热片中,一所述换热片的烟气过道相对于与该烟气过道对接的另一所述换热片的烟气过道呈倾斜设置。The heat exchanger according to claim 6, wherein a plurality of said heat exchange sheets, a flue gas passage of said heat exchange sheet is opposite to said other heat exchange sheet abutting said flue gas passage The smoke aisle is tilted.
- 如权利要求1所述的换热器,其特征在于,所述烟气通道在进气方向上呈弯折设置。The heat exchanger according to claim 1, wherein said flue gas passage is bent in an intake direction.
- 如权利要求1所述的换热器,其特征在于,所述换热片由不锈钢制的。The heat exchanger according to claim 1, wherein said heat exchange sheet is made of stainless steel.
- 如权利要求1所述的换热器,其特征在于,所述换热管为扁平管。The heat exchanger according to claim 1, wherein said heat exchange tubes are flat tubes.
- 如权利要求1所述的换热器,其特征在于,所述换热管的横截面为圆形、椭圆形或方形。The heat exchanger according to claim 1, wherein said heat exchange tube has a circular, elliptical or square cross section.
- 如权利要求1所述的换热器,其特征在于,所述换热管的外表面具有用以与所述换热片贴接的第二安装平面。The heat exchanger according to claim 1, wherein an outer surface of said heat exchange tube has a second mounting plane for attaching to said heat exchange sheet.
- 如权利要求1所述的换热器,其特征在于,每一排所述换热管集成于一换热管集成板中,所述换热管集成板包括两个相互贴合的层接板,至少其中一所述层接板多次向外侧***,以在该层接板的内侧形成有多个并排间隔设置的凹槽,多个所述凹槽自所述层接板的一端延伸至所述层接板的另一端,多个所述凹槽与另一层间板围设形成一排所述换热管。The heat exchanger according to claim 1, wherein each of said heat exchange tubes is integrated in a heat exchange tube integrated plate, and said heat exchange tube integrated plate comprises two mutually contiguous laminated plates At least one of the laminates is bulged outwardly a plurality of times to form a plurality of grooves arranged side by side on the inner side of the laminate, and the plurality of grooves extend from one end of the laminate to At the other end of the layering plate, a plurality of the grooves and another interlayer plate enclose a row of the heat exchange tubes.
- 如权利要求13所述的换热器,其特征在于,所述两个层接板由一板体对折而形成。The heat exchanger according to claim 13, wherein said two plywood sheets are formed by folding one plate body.
- 如权利要求1所述的换热器,其特征在于,所述第一集流端盖包括安装于所述多排换热管一端的第一端板,所述第二集流端盖包括安装于所述多排换热管另一端的第二端板;所述第一端板上设有用以连通对应的所述换热管的第一导流槽,所述第二端板上设有用以连通对应的所述换热管的第二导流槽。The heat exchanger according to claim 1, wherein said first current collecting end cover comprises a first end plate mounted at one end of said plurality of rows of heat exchange tubes, said second current collecting end cover comprising mounting a second end plate at the other end of the plurality of rows of heat exchange tubes; the first end plate is provided with a first flow guiding groove for connecting the corresponding heat exchange tubes, and the second end plate is provided with The second flow guiding groove of the corresponding heat exchange tube is connected.
- 如权利要求15所述的换热器,其特征在于,所述第一集流端盖还包括设于第一端板内侧并与第一端板相连接的第一定位板,所述第一定位板上对应每一所述换热管设置一个第一定位凸起,所述第一定位凸起伸入对应的所述换热管内,所述第一定位凸起上开设有连通所述第一导流槽和所述换热管的第一通孔;The heat exchanger according to claim 15, wherein the first current collecting end cover further comprises a first positioning plate disposed inside the first end plate and connected to the first end plate, the first a first positioning protrusion is disposed on each of the heat exchange tubes, and the first positioning protrusion protrudes into the corresponding heat exchange tube, and the first positioning protrusion is opened to communicate with the first a flow guiding groove and a first through hole of the heat exchange tube;所述第二集流端盖还包括设于第二端板内侧并与第二端板相连接的第二定位板,所述第二定位板上对应每一所述换热管设置一个第二定位凸起,所述第二定位凸起伸入对应的所述换热管内,所述第二定位凸起上开设有连通所述第二导流槽和所述换热管的第二通孔。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 .
- 如权利要求15所述的换热器,其特征在于,设于最外侧的两排所述换热管构成所述换热器的两个外表面;设于最外侧的两排所述换热管与所述第一集流端盖、第二集流端盖共同围设形成具有两个开口的框体,所述框体的一个开口构成所述烟气入口,所述框体的另一个开口构成所述烟气出口。A heat exchanger according to claim 15, wherein said outermost two rows of said heat exchange tubes constitute two outer surfaces of said heat exchanger; and said outermost two rows of said heat exchange tubes The tube and the first collecting end cover and the second collecting end cover are enclosed to form a frame having two openings, one opening of the frame constitutes the flue gas inlet, and the other of the frame The opening constitutes the flue gas outlet.
- 如权利要求1所述的换热器,其特征在于,还包括用以辅助烟气进入所述换热器的进气法兰;所述进气法兰安装于所述烟气入口处。The heat exchanger according to claim 1 further comprising an intake flange for assisting entry of flue gas into said heat exchanger; said intake flange being mounted to said flue gas inlet.
- 如权利要求1所述的换热器,其特征在于,还包括用以收集燃烧废气的集烟罩;所述集烟罩安装于所述烟气出口处。The heat exchanger according to claim 1, further comprising a hood for collecting combustion exhaust gas; said hood being installed at said flue gas outlet.
- 一种热水器,其特征在于,包括燃烧器及如权利要求1所述的换热器,所述燃烧器燃烧产生的烟气从所述烟气通道内通过。A water heater characterized by comprising a burner and the heat exchanger according to claim 1, wherein smoke generated by combustion of the burner passes through the flue gas passage.
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CN201610021833.5A CN105486125B (en) | 2016-01-11 | 2016-01-11 | Heat exchanger and water heater |
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CN201620031776.4 | 2016-01-11 | ||
CN201620031776.4U CN205537227U (en) | 2016-01-11 | 2016-01-11 | Heat exchanger and water heater |
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