CN210980368U - Inverted combustion full-premixing condensation heat exchanger - Google Patents
Inverted combustion full-premixing condensation heat exchanger Download PDFInfo
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- CN210980368U CN210980368U CN201921607618.9U CN201921607618U CN210980368U CN 210980368 U CN210980368 U CN 210980368U CN 201921607618 U CN201921607618 U CN 201921607618U CN 210980368 U CN210980368 U CN 210980368U
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- 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]
Abstract
The utility model discloses an inversion formula burning full premix condensing heat exchanger includes the combustion unit of the fuel burning of being convenient for, the heat exchange unit of the medium absorbed energy of being convenient for and the condensation unit that is used for collecting the comdenstion water in proper order according to hot flue gas from the top down flow direction. The utility model discloses an each performance index satisfies GB25034-2010 "gas heating water heater" standard, and heat exchange efficiency calculates according to the high calorific value and reaches 107%, and the flue gas runner optimizes, is difficult to produce and blocks up, and the comdenstion water discharges smoothly, keeps away fromThe corrosion of a heat exchanger body is avoided, the multi-channel large-flow water running is difficult to form scale on the inner wall of the water pipe, and nitrogen oxides (lower than 30 mg/M)3) And CO emissions below 300 ppm.
Description
Technical Field
The utility model relates to a full premix condensation heat exchanger, concretely relates to inversion formula burning full premix condensation heat exchanger belongs to gas boiler technical field.
Background
China is a country with large energy consumption and large environment pollution, energy conservation and emission reduction are long-term strategic guidelines in national economy for improving the condition, and according to the regulation of environmental air quality standard GB3095-2012, CO emission is lower than 2000 mg/LXBelow 30 mg/L, the standard is difficult to be achieved by a common atmospheric combustion heat exchanger, while the full premix condensing heat exchanger can well achieve the first-level energy efficiency and can achieve the extremely low emission standard of CO and NOx (30 mg/m)3）。
However, in the use process of the existing fully premixed condensing heat exchanger in recent years, a problem is found to be troubled for users, and the problem is that: because of different national conditions, the fully premixed condensing heat exchanger imported from abroad is easy to cause smoke gas clearance blockage and water pipe scaling in the using process. And because the clearance blocks up, cause heat exchange efficiency to drop, the flue gas exceeds standard. Due to the scaling of the water pipes, the heat exchange efficiency is also reduced, and the service life of the heat exchanger is shortened.
These fully premixed condensing heat exchangers face this problem and are very difficult to clean and maintain. Therefore, it is very necessary to develop a new heat exchanger, which firstly needs the advantages of the general condensing heat exchanger: the energy efficiency meets the GB20665-2015 energy efficiency limit values and energy efficiency grades of household gas quick water heaters and gas heating water heaters, and the smoke emission meets the requirements of GB3095-2012 environmental air quality standards. Then the problems of smoke blockage and water pipe scaling need to be solved.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is overcome prior art's the aforesaid is not enough, an inversion formula burning full premix condensation heat exchanger is provided, make the efficiency satisfy GB20665-2015 "domestic gas instantaneous water heater and gas heating water heater efficiency limit value and efficiency grade", the flue gas discharges and satisfies the requirement of GB3095-2012 "ambient air quality standard", solve the problem of flue gas blocking and water pipe scale deposit, guarantee to reach and exceed one-level efficiency and flue gas discharge standard, can adapt to the national conditions, can maintain the maintenance easily, make the actual life of heat exchanger increase, thereby make full premix hanging stove can really popularize domestically, satisfy internal demand.
In order to solve the above problem, the utility model adopts the following technical scheme: the utility model provides an inversion formula burning full premix condensing heat exchanger, includes the combustion unit that is convenient for fuel burning, the heat exchange unit that is convenient for medium absorption energy and the condensing unit that is used for collecting the comdenstion water in proper order according to hot flue gas from the top down flow direction.
The following is a further optimization of the above scheme by the present utility model: the heat exchange unit comprises a plurality of stainless steel heat exchange tubes in a rectangular array.
Further optimization: and two ends of the stainless steel heat exchange tubes on the same layer are respectively connected with the transverse water collecting bag and the first longitudinal water collecting bag in a sealing manner.
Further optimization: one end of the stainless steel heat exchange tube is hermetically connected with the transverse water collecting bag and the water inlet joint.
Further optimization: one end of the stainless steel heat exchange tube is hermetically connected with the transverse water collecting bag and the second longitudinal water collecting bag.
Further optimization: and the second longitudinal water collecting bag is connected with a plurality of combustion unit heat exchange tubes which are arranged in central symmetry.
Further optimization: the longitudinal sections of the combustion unit heat exchange tube and the stainless steel heat exchange tube are oval, and the long axis of the oval is arranged along the trend of the flue gas.
Further optimization: one end of the combustion unit heat exchange tube is connected with a water outlet joint, and bosses are arranged on the water outlet joint, the second longitudinal water collecting bag, the water inlet joint, the first longitudinal water collecting bag and the transverse water collecting bag respectively.
Further optimization: and second through holes are respectively formed in the positions, corresponding to the bosses, of the water outlet joint, the second longitudinal water collecting bag, the water inlet joint, the first longitudinal water collecting bag and the transverse water collecting bag.
Further optimization: cavities are formed in the water outlet connector, the second longitudinal water collecting bag, the water inlet connector, the first longitudinal water collecting bag and the transverse water collecting bag.
When the stainless steel heat exchange unit is used, cold water enters the stainless steel heat exchange tube through the water inlet connector, then enters the heat exchange unit heat exchange tube to absorb energy, and finally turns into hot water through the water outlet connector to flow out.
The utility model discloses a matrix structure is arranged in line to stainless steel flat tube adopts cooling water course (combustion unit heat exchange tube) around the combustor, arranges the fin on main heat transfer pipeline (stainless steel heat exchange tube), and overall structure adopts the technology of brazing, through experimental test and use, the utility model discloses an each item performance index satisfies GB25034-2010 "gas heating water heater" standard, and heat exchange efficiency calculates according to high calorific value and reaches 107%, and the flue gas runner optimizes, is difficult to produce and blocks up, and the comdenstion water discharges smoothly, has avoided corroding the heat exchanger organism, and large-traffic multichannel is walked water, is difficult to at the water pipe inner wall scale deposit, and nitrogen oxide (be less than 30mg/M3) And the discharge amount of CO is less than 300ppm, and the device is difficult to block, can be basically free from cleaning, is convenient for after-sale maintenance, can effectively cool a combustion cavity, has small volume and high universality, is compatible with a multi-power machine type, can be used as a main heat exchanger of a gas heating water heater, and can also be used as a full-premix condensing heat exchanger of a commercial boiler.
The present invention will be further explained with reference to the drawings and examples.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present invention;
fig. 2 is a schematic structural view of a horizontal water collecting bag in an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a water inlet joint in the embodiment of the present invention;
fig. 4 is a schematic structural view of a stainless steel heat exchange tube in an embodiment of the present invention;
fig. 5 is a schematic structural view of a water outlet joint in an embodiment of the present invention;
fig. 6 is a schematic structural diagram of a heat exchanger shell according to an embodiment of the present invention;
fig. 7 is a schematic structural view of a first longitudinal water collecting drum according to an embodiment of the present invention;
fig. 8 is a schematic structural view of a heat exchanger support plate according to an embodiment of the present invention;
fig. 9 is an exploded view of the present invention in an embodiment.
In the figure: 1-water inlet joint; 2-water outlet joint; 3-a first longitudinal water collecting bag; 4-a heat exchanger housing; 5-stainless steel heat exchange tubes; 6-horizontal water collecting bag; 7-peripheral heat exchange tubes; 8-a condensate collector; 9-a combustion unit; 10-a heat exchange unit; 11-a condensation unit; 12-a second longitudinal sump; 14-heat exchanger support plates; 15-a first via; 16-a second via; 17-a boss; 18-combustion unit heat exchange tubes.
Detailed Description
In the embodiment, as shown in fig. 1 to 9, an inverted combustion fully premixed condensing heat exchanger comprises a combustion unit 9 for facilitating fuel combustion, a heat exchange unit 10 for facilitating energy absorption of a medium and a condensing unit 11 for collecting condensed water in sequence according to the flowing direction of hot flue gas from top to bottom.
The heat exchange unit 10 comprises a plurality of stainless steel heat exchange tubes 5 in a rectangular array, the stainless steel heat exchange tubes 5 are transversely arranged in a plurality of layers, and the layers are arranged up and down, so that the design is convenient for the medium to flow.
The longitudinal section of the stainless steel heat exchange tube 5 is oval, and the long axis of the oval is vertically arranged, so that the design is convenient for energy absorption and flue gas flow.
The two ends of the stainless steel heat exchange tubes 5 are respectively provided with a heat exchanger support plate 14, and the longitudinal section of the heat exchanger support plate 14 is in a shape like a Chinese character 'ji'.
Offer the first through-hole 15 that holds a plurality of stainless steel heat exchange tube 5 one end on the heat exchanger backup pad 14, the design is convenient for the one end of stainless steel heat exchange tube 5 to insert in first through-hole 15 like this, and the design is convenient for support a plurality of stainless steel heat exchange tubes 5 like this.
One end of each of the two adjacent layers of partial stainless steel heat exchange tubes 5 is communicated through the first longitudinal water collecting bag 3, and the other end of each of the partial stainless steel heat exchange tubes 5 is communicated with one end of the other stainless steel heat exchange tube 5 in the same layer through the transverse water collecting bag 6.
And two ends of the stainless steel heat exchange tubes 5 positioned on the same layer are respectively connected with the transverse water collecting bag 6 and the first longitudinal water collecting bag 3 in a sealing way.
One end of each stainless steel heat exchange tube 5 positioned at the lowermost layer is respectively connected with the transverse water collecting bag 6 and the first longitudinal water collecting bag 3 in a sealing manner, and the other end of each stainless steel heat exchange tube 5 in the layer is connected with the transverse water collecting bag 6 and the water inlet joint 1 in a sealing manner.
One end of each stainless steel heat exchange tube 5 positioned on the uppermost layer is hermetically connected with the transverse water collecting bag 6 and the first longitudinal water collecting bag 3 respectively, and the other end of each stainless steel heat exchange tube 5 in the layer is hermetically connected with the transverse water collecting bag 6 and the second longitudinal water collecting bag 12.
A plurality of combustion unit heat exchange tubes 18 which are arranged in central symmetry are respectively connected to the positions, close to the upper ends, of the second longitudinal water collecting bags 12.
The combustion unit heat exchange tube 18 is of an L-shaped structure, the longitudinal section of the combustion unit heat exchange tube 18 is also oval, and the long axis of the oval is vertically arranged, so that the design is convenient for absorbing energy.
The other ends of the plurality of combustion unit heat exchange tubes 18 are connected with water outlet connectors 2, so that the design is convenient for outputting media.
The position of the water outlet connector 2 connected with the combustion unit heat exchange tube 18, the position of the second longitudinal water collecting bag 12 connected with the combustion unit heat exchange tube 18 and the stainless steel heat exchange tube 5, and the positions of the water inlet connector 1, the first longitudinal water collecting bag 3 and the transverse water collecting bag 6 connected with the stainless steel heat exchange tube 5 are respectively and integrally connected with a boss 17 matched with the end parts of the combustion unit heat exchange tube 18 and the stainless steel heat exchange tube 5, so that the design is convenient for the insertion of the two parts.
And the positions, corresponding to the lug boss 17, of the water outlet connector 2, the second longitudinal water collecting bag 12, the water inlet connector 1, the first longitudinal water collecting bag 3 and the transverse water collecting bag 6 are respectively provided with a second through hole 16, so that the design is convenient for the medium to flow.
Cavities are formed in the water outlet connector 2, the second longitudinal water collecting bag 12, the water inlet connector 1, the first longitudinal water collecting bag 3 and the transverse water collecting bag 6.
The longitudinal sections of the second longitudinal water collecting pocket 12 and the first longitudinal water collecting pocket 3 and the cross section of the transverse water collecting pocket 6 are both D-shaped.
The heat exchanger shells 4 are symmetrically arranged on two sides of the plurality of stainless steel heat exchange tubes 5 in the rectangular array, and the two heat exchanger shells 4 are located between the heat exchanger support plates 14 and close to the two sides, so that the design is convenient for guiding the flow of flue gas.
The combustion unit 9 is formed between the two heat exchanger supporting plates 14 and the two heat exchanger shells 4 in the area close to the uppermost layer of the plurality of stainless steel heat exchange tubes 5.
The plurality of combustion unit heat exchange tubes 18 are arranged around the two heat exchanger support plates 14 and the positions corresponding to the combustion units 9 outside the two heat exchanger shells 4, and the design is convenient for improving the utilization rate of energy.
Burners are fixedly arranged at the upper ends of the two heat exchanger supporting plates 14 and the two heat exchanger shells 4, and flame is sprayed out of the burners to the combustion unit 9.
And peripheral heat exchange tubes 7 are respectively arranged at the positions, corresponding to each layer of stainless steel heat exchange tube 5, of the two sides of the two heat exchanger shells 4, and the peripheral heat exchange tubes 7 have the same structure as the stainless steel heat exchange tubes 5 and are used for improving the utilization rate of energy.
And two ends of each peripheral heat exchange tube 7 are respectively communicated with the corresponding second longitudinal water collecting bag 12, the water inlet joint 1, the first longitudinal water collecting bag 3 and the transverse water collecting bag 6.
The condensing unit 11 comprises a condensate water collector 8, the condensate water collector 8 comprises an area enclosed by two heat exchanger supporting plates 14 and the bottom of the two heat exchanger shells 4 close to the lowest stainless steel heat exchange tube 5, and the lower ends of the two heat exchanger supporting plates 14 and the two heat exchanger shells 4 are packaged through a bottom plate.
One side of the condensed water collector 8 is provided with a valve, so that the design is convenient for discharging flue gas, and the bottom of the condensed water collector 8 is provided with a water outlet, so that the design is convenient for discharging condensed water.
When in use, condensed water enters the stainless steel heat exchange tube 5 through the water inlet connector 1, then enters the combustion unit heat exchange tube 18, and finally flows out through the water outlet connector 2;
flue gas flow channel principle: high-temperature flue gas generated during combustion of the burner flows downwards along gaps among the stainless steel heat exchange tubes below under the action of gas pressure of the inverted burner, flows through the heat exchange units 10 from the combustion unit 9 in sequence, and finally reaches the condensation unit 11;
when high-temperature flue gas flows through the gaps of the heat exchange pipes of the heat exchange unit 10, heat is taken away by cold water in the pipes, the temperature of the flue gas is reduced, when the high-temperature flue gas continuously flows downwards, heat of high-temperature steam is taken away and is converted into condensate water, the condensate water flows downwards along the pipe wall, and is converged to a condensate water collecting position of the condensing unit 11 in a centralized mode and flows away from a water outlet, and the flue gas is discharged from a flue gas door (valve) on the side of the condensate water collector (a smoke exhaust pipe is additionally arranged to be connected;
the reason why the high-temperature flue gas can be efficiently exchanged heat by the stainless steel pipes is that the stainless steel pipes are orderly arranged, the gap value is reasonable, the flue gas can advance along the maximum heat exchange path when flowing from the gap and is subjected to heat exchange in the maximum heat exchange area region, so that the heat in the flue gas can be fully absorbed by water flowing through the pipeline, and the purpose of efficient heat exchange is achieved.
The utility model discloses a matrix structure is arranged in line to stainless steel flat tube adopts cooling water course (combustion unit heat exchange tube) around the combustor, arranges the fin on main heat transfer pipeline (stainless steel heat exchange tube), and overall structure adopts the technology of brazing, through experimental test and use, the utility model discloses an each item performance index satisfies GB25034-2010 "gas heating water heater" standard, and heat exchange efficiency calculates according to high calorific value and reaches 107%, and the flue gas runner optimizes, is difficult to produce and blocks up, and the comdenstion water discharges smoothly, has avoided corroding the heat exchanger organism, and large-traffic multichannel is walked water, is difficult to at the water pipe inner wall scale deposit, and nitrogen oxide (be less than 30mg/M3) And the device has low CO discharge amount, is difficult to block, can be basically free of cleaning, is convenient for after-sale maintenance, can effectively cool the combustion cavity, has small volume and high universality, is compatible with a multi-power machine type, can be used as a main heat exchanger of a gas heating water heater, and can also be used as a full-premix condensing heat exchanger of a commercial boiler.
Having shown and described the basic principles and essential features of the invention and advantages thereof, it will be apparent to those skilled in the art that the invention is not limited to the details of the foregoing exemplary embodiments, but is capable of other specific forms without departing from the spirit or essential characteristics thereof, and it is therefore intended that the embodiments be considered as exemplary and not limiting in any way, since the scope of the invention is defined by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein and are therefore not to be embraced therein by any reference numerals in the claims.
Claims (5)
1. An inversion type combustion full-premixing condensing heat exchanger is characterized in that: the device comprises a combustion unit (9) convenient for fuel combustion, a heat exchange unit (10) convenient for medium to absorb energy and a condensation unit (11) used for collecting condensed water in sequence according to the flowing direction of hot flue gas from top to bottom;
the heat exchange unit (10) comprises a plurality of stainless steel heat exchange tubes (5) in a rectangular array;
two ends of the stainless steel heat exchange tubes (5) positioned on the same layer are respectively connected with the transverse water collecting bag (6) and the first longitudinal water collecting bag (3) in a sealing way;
one end of the partial stainless steel heat exchange tube (5) is hermetically connected with the transverse water collecting bag (6) and the second longitudinal water collecting bag (12);
the second longitudinal water collecting bag (12) is connected with a plurality of combustion unit heat exchange tubes (18) which are arranged in a central symmetry manner;
the longitudinal sections of the combustion unit heat exchange tube (18) and the stainless steel heat exchange tube (5) are oval, and the long axis of the oval is arranged along the trend of flue gas.
2. The inverted combustion fully premixed condensing heat exchanger of claim 1, wherein: one end of the partial stainless steel heat exchange tube (5) is hermetically connected with the transverse water collecting bag (6) and the water inlet joint (1).
3. The inverted combustion fully premixed condensing heat exchanger of claim 2, wherein: one end of the combustion unit heat exchange tube (18) is connected with a water outlet joint (2), and bosses (17) are respectively arranged on the water outlet joint (2), the second longitudinal water collecting bag (12), the water inlet joint (1), the first longitudinal water collecting bag (3) and the transverse water collecting bag (6).
4. The inverted combustion fully premixed condensing heat exchanger of claim 3, wherein: and second through holes (16) are respectively formed in positions, corresponding to the lug bosses (17), on the water outlet joint (2), the second longitudinal water collecting bag (12), the water inlet joint (1), the first longitudinal water collecting bag (3) and the transverse water collecting bag (6).
5. The inverted combustion fully premixed condensing heat exchanger of claim 4, wherein: cavities are formed in the water outlet connector (2), the second longitudinal water collecting bag (12), the water inlet connector (1), the first longitudinal water collecting bag (3) and the transverse water collecting bag (6).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201921607618.9U CN210980368U (en) | 2019-09-25 | 2019-09-25 | Inverted combustion full-premixing condensation heat exchanger |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201921607618.9U CN210980368U (en) | 2019-09-25 | 2019-09-25 | Inverted combustion full-premixing condensation heat exchanger |
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| CN210980368U true CN210980368U (en) | 2020-07-10 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110513880A (en) * | 2019-09-25 | 2019-11-29 | 山东爱客多热能科技有限公司 | A kind of full premixed condensed heat exchanger of inversion type burning |
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- 2019-09-25 CN CN201921607618.9U patent/CN210980368U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110513880A (en) * | 2019-09-25 | 2019-11-29 | 山东爱客多热能科技有限公司 | A kind of full premixed condensed heat exchanger of inversion type burning |
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Effective date of registration: 20230921 Address after: 9th Floor, Building A, Jinsheng Culture Building, Tai'an High tech Zone, Tai'an City, Shandong Province, 271000 Patentee after: Shandong Meitian Energy Technology Co.,Ltd. Address before: 271299 Middle Section of Longteng Road, High tech Development Zone, Tai'an City, Shandong Province Patentee before: SHANDONG AIKEDUO HEAT ENERGY SCIENCE AND TECHNOLOGY CO.,LTD. |