CN219589501U - High-efficiency energy-saving flue gas recoverer - Google Patents

High-efficiency energy-saving flue gas recoverer Download PDF

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Publication number
CN219589501U
CN219589501U CN202320726695.6U CN202320726695U CN219589501U CN 219589501 U CN219589501 U CN 219589501U CN 202320726695 U CN202320726695 U CN 202320726695U CN 219589501 U CN219589501 U CN 219589501U
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heat exchange
flue gas
premixing
exchange cavity
plate
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CN202320726695.6U
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胡乃成
胡新明
黄佳钦
范德金
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Zhonglong Energy Technology Dongguan Co ltd
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Zhonglong Energy Technology Dongguan Co ltd
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Abstract

The utility model discloses a high-efficiency energy-saving flue gas recoverer, which comprises a heat exchange cavity; a partition plate is formed in the middle of the heat exchange cavity, the partition plate divides the heat exchange cavity into a double-flow-channel structure, and a plate heat exchanger is fixedly arranged in the double-flow-channel structure of the heat exchange cavity; the left end of the bottom of the heat exchange cavity is provided with a high-temperature flue gas inlet, the left end of the top of the heat exchange cavity is provided with a flue gas outlet, and a double-flow-passage structure in the heat exchange cavity is communicated between the high-temperature flue gas inlet and the flue gas outlet; a premixing cold air inlet and a premixing hot air outlet are formed in the front side of the heat exchange cavity, and a plate heat exchanger is arranged between the premixing cold air inlet and the premixing hot air outlet; the left end of the back side of the heat exchange cavity is provided with a drain pipe and an explosion door which are mutually separated up and down through a partition board; compared with the traditional tubular heat exchanger, the plate heat exchanger has the advantages of small volume, large heat exchange area and difficult blockage, and improves the heat exchange efficiency.

Description

High-efficiency energy-saving flue gas recoverer
Technical Field
The utility model relates to the field of combustors and energy-saving devices, in particular to a high-efficiency energy-saving flue gas recoverer.
Background
The burner is a device for ejecting and mixing fuel and air in a fixed manner. In order to enable the burner to burn more quickly, combustion supporting is realized by using a heating air mode, and the conventional air heating mode at present generally adopts an air heater and a heat exchanger.
The mode of adopting the air heater has the problem of high cost; the heat exchanger is adopted as disclosed in the prior patent (publication number: CN 218120200U, publication day: 2022.12.23), which uses the exhaust gas discharged from the burner to preheat the fresh air, and performs the heat exchange operation by arranging a tube heat exchanger in the heat exchange box, however, the tube heat exchanger has the following drawbacks: 1. the volume is large, the heat exchange area is small, and the heat exchange efficiency is low; 2. the pipeline is easy to rust and block, and the inner pipeline needs to be cleaned regularly, so that the service life is short; 3. the explosion door is not arranged, so that the air pressure in the heat exchange box is easily larger than the air pressure of the outside air, and certain potential safety hazards exist; 4. no drain pipe is provided, and condensed water cannot be discharged when the natural gas burner is used for a natural gas burner.
In this regard, it is necessary to design an energy efficient flue gas recoverer to address the above-mentioned drawbacks.
Disclosure of Invention
The utility model provides a technical scheme capable of solving the problems in order to overcome the defects of the prior art.
An efficient energy-saving flue gas recoverer comprises a heat exchange cavity;
a partition plate is formed in the middle of the heat exchange cavity, the partition plate divides the heat exchange cavity into a double-flow-channel structure, and a plate heat exchanger is fixedly arranged in the double-flow-channel structure of the heat exchange cavity;
the left end of the bottom of the heat exchange cavity is provided with a high-temperature flue gas inlet, the left end of the top of the heat exchange cavity is provided with a flue gas outlet, and a double-flow-passage structure in the heat exchange cavity is communicated between the high-temperature flue gas inlet and the flue gas outlet;
a premixing cold air inlet and a premixing hot air outlet are formed in the front side of the heat exchange cavity, and a plate heat exchanger is arranged between the premixing cold air inlet and the premixing hot air outlet;
the left end shaping of heat transfer cavity rear side has drain pipe and explosion vent, separates the setting from top to bottom through the baffle between drain pipe and the explosion vent each other.
As a further scheme of the utility model: the plate heat exchanger comprises a plurality of heat exchange plates and two heat exchange brackets, wherein the heat exchange plates are arranged at equal intervals, the two heat exchange brackets are respectively and fixedly arranged at the left end and the right end in the heat exchange cavity, a plurality of positioning grooves are formed in the heat exchange brackets, and the left end and the right end of each heat exchange plate are respectively and fixedly arranged in the positioning grooves of the heat exchange brackets.
As a further scheme of the utility model: the middle part shaping of heat exchange plate has the vent, and the vent of heat exchange plate runs through the heat exchange support setting through the location fluting, and the vent intercommunication of a plurality of heat exchange plates sets up between high temperature flue gas air inlet and flue gas outlet.
As a further scheme of the utility model: the heat exchange air channels are formed at intervals among the heat exchange plates and are communicated between the premixed cold air inlet and the premixed hot air outlet.
As a further scheme of the utility model: the heat exchange plate is made of stainless steel.
As a further scheme of the utility model: the left end shaping of heat transfer cavity front side has the backward flow mouth, and the backward flow mouth sets up the below at the baffle.
As a further scheme of the utility model: the premixing hot air outlet is connected and provided with a premixing hot air pipe, and a pipeline supporting frame is fixedly arranged between the front side of the heat exchange cavity and the premixing hot air pipe.
As a further scheme of the utility model: the upper side edge of the explosion-proof door is hinged and matched with a cover plate, the explosion-proof door is obliquely arranged, and the cover plate covers the explosion-proof door through self gravity.
Compared with the prior art, the utility model has the beneficial effects that:
1. the heat exchange cavity is internally provided with the partition plate, the partition plate can enable a double-flow-channel structure to be formed in the heat exchange cavity, so that the heat exchange space is increased, and compared with a traditional tubular heat exchanger, the plate heat exchanger is arranged in the double-flow-channel structure, has the advantages of small volume, large heat exchange area and difficult occurrence of blockage, further ensures the heat exchange efficiency, and can heat the outside air more rapidly;
2. the air exhauster is used for extracting external air, the external air enters the premixed cold air inlet, the air is subjected to heat exchange by the plate heat exchanger and then is output through the premixed hot air outlet, and then the air is conveyed to the air inlet of the burner to realize the combustion-supporting effect;
3. the high-efficiency heat exchange can effectively reduce the air outlet temperature of the flue gas outlet, thereby reducing air pollution;
4. when the burner is used for natural gas, condensed water generated during heat exchange can be output through the drain pipe, and the setting of the explosion-proof door enables the internal and external air pressure to be kept consistent, so that potential safety hazards are reduced.
Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.
Drawings
In order to more clearly illustrate the embodiments of the utility model or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are only some embodiments of the utility model, and that other drawings can be obtained according to these drawings without inventive faculty for a person skilled in the art.
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a schematic diagram of an exploded construction of the present utility model;
FIG. 3 is an enlarged schematic view of the structure at A of FIG. 2;
FIG. 4 is a schematic view of an exploded view of another view of the present utility model;
fig. 5 is a schematic view of an exploded structure according to still another aspect of the present utility model.
The figure shows: 1. a heat exchange cavity; 2. a partition plate; 3. a plate heat exchanger; 31. a heat exchange plate; 32. a heat exchange bracket; 4. a high-temperature flue gas inlet; 5. a flue gas outlet; 6. premixing cold air inlet; 7. premixing a hot air outlet; 8. a drain pipe; 9. an explosion door; 10. positioning and slotting; 11. a vent; 12. a heat exchange air duct; 13. a return port; 14. premixing a hot air pipe; 15. a pipe support; 16. and a cover plate.
Description of the embodiments
The following description of the embodiments of the present utility model will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the utility model are shown.
The components of the embodiments of the present utility model generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model.
All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.
As shown in fig. 1-5, the high-efficiency energy-saving flue gas recoverer comprises a heat exchange cavity 1;
a partition board 2 is formed in the middle of the heat exchange cavity 1, the partition board 2 divides the heat exchange cavity 1 into a double-flow-channel structure, and a plate heat exchanger 3 is fixedly arranged in the double-flow-channel structure of the heat exchange cavity 1;
the left end of the bottom of the heat exchange cavity 1 is provided with a high-temperature flue gas inlet 4, the left end of the top of the heat exchange cavity 1 is provided with a flue gas outlet 5, and a double-flow-passage structure in the heat exchange cavity 1 is communicated between the high-temperature flue gas inlet 4 and the flue gas outlet 5;
the front side of the heat exchange cavity 1 is provided with a premixed cold air inlet 6 and a premixed hot air outlet 7, and the plate heat exchanger 3 is arranged between the premixed cold air inlet 6 and the premixed hot air outlet 7;
the left end of the back side of the heat exchange cavity 1 is provided with a drain pipe 8 and an explosion door 9, and the drain pipe 8 and the explosion door 9 are mutually separated up and down by a partition plate 2;
the principle is as follows: set up baffle 2 in heat transfer cavity 1, baffle 2 can let form double-flow channel structure in the heat transfer cavity 1, and then increase heat transfer space, set up plate heat exchanger 3 in its double-flow channel structure, plate heat exchanger 3 compares traditional tubular heat exchanger, have small, heat transfer area is big, be difficult for taking place the advantage of jam, and then guarantee the efficiency of its heat transfer, can be more quick for external air heating, use the external air of air exhauster extraction to enter into premixing cold wind air intake 6 department, air exports through premixing hot air outlet 7 after heat transfer of plate heat exchanger 3, then carry the air intake department of combustor again and realize combustion-supporting effect, simultaneously efficient heat transfer can effectively reduce the air-out temperature of flue gas outlet 5, and then reduce air pollution, when being used for the combustor of natural gas, the comdenstion water that produces can export through drain pipe 8 during the heat transfer, still be provided with explosion vent 9, let inside and outside atmospheric pressure keep unanimously, safety is reduced.
As a further scheme of the utility model: the plate heat exchanger 3 comprises a plurality of heat exchange plates 31 and two heat exchange brackets 32, wherein the heat exchange plates 31 are arranged at equal intervals, the two heat exchange brackets 32 are respectively and fixedly arranged at the left end and the right end in the heat exchange cavity 1, a plurality of positioning slots 10 are formed on the heat exchange brackets 32, and the left end and the right end of the heat exchange plates 31 are respectively and fixedly arranged in the positioning slots 10 of the heat exchange brackets 32; the stable installation of the plate heat exchanger 3 in the heat exchange chamber 1 can be ensured.
As a further scheme of the utility model: the middle part of the heat exchange plate 31 is provided with ventilation openings 11, the ventilation openings 11 of the heat exchange plate 31 penetrate through the heat exchange bracket 32 through the positioning slots 10, and the ventilation openings 11 of the plurality of heat exchange plates 31 are communicated and arranged between the high-temperature flue gas inlet 4 and the flue gas outlet 5; the high-temperature flue gas passes through the plurality of heat exchange plates 31 through the ventilation openings 11, and heat of the high-temperature flue gas can be quickly transferred to the heat exchange plates 31, so that the effect of quick heat exchange is realized.
As a further scheme of the utility model: the heat exchange air channels 12 are formed at intervals among the heat exchange plates 31, and the heat exchange air channels 12 are communicated and arranged between the premixed cold air inlet 6 and the premixed hot air outlet 7; the heat exchange air duct 12 heats the air entering from the premixed cold air inlet 6, so that the effect of quick heat exchange and combustion supporting is achieved.
As a further scheme of the utility model: the heat exchange plate 31 is made of stainless steel; the plate heat exchanger 3 is free from rusting, is not easy to be blocked, and the service life of the plate heat exchanger is ensured.
As a further scheme of the utility model: a reflux port 13 is formed at the left end of the front side of the heat exchange cavity 1, and the reflux port 13 is arranged below the partition plate 2; the return opening 13 is connected with the combustion chamber, so that the heat loss of the combustion chamber can be reduced.
As a further scheme of the utility model: a premixing hot air pipe 14 is connected and installed on the premixing hot air outlet 7, and a pipeline supporting frame 15 is fixedly installed between the front side of the heat exchange cavity 1 and the premixing hot air pipe 14; the premixed hot air outlet 7 can be conveniently connected to the air inlet of the burner.
As a further scheme of the utility model: the upper side edge of the explosion door 9 is hinged and matched with a cover plate 16, the explosion door 9 is obliquely arranged, and the cover plate 16 covers the explosion door 9 through self gravity; when inside atmospheric pressure is greater than outside atmospheric pressure, the pressure of air can drive apron 16 and open, can let inside and outside atmospheric pressure keep unanimous after the apron 16 is opened, and then realizes explosion-proof effect, has reduced the potential safety hazard, and apron 16 covers explosion vent 9 through weight, and then reduces temperature loss.
The present embodiment is not limited in any way by the shape, material, structure, etc. of the present utility model, and any simple modification, equivalent variation and modification made to the above embodiments according to the technical substance of the present utility model are all included in the scope of protection of the technical solution of the present utility model.

Claims (8)

1. An efficient energy-saving flue gas recoverer comprises a heat exchange cavity; the method is characterized in that:
a partition plate is formed in the middle of the heat exchange cavity, the partition plate divides the heat exchange cavity into a double-flow-channel structure, and a plate heat exchanger is fixedly arranged in the double-flow-channel structure of the heat exchange cavity;
the left end of the bottom of the heat exchange cavity is provided with a high-temperature flue gas inlet, the left end of the top of the heat exchange cavity is provided with a flue gas outlet, and a double-flow-passage structure in the heat exchange cavity is communicated between the high-temperature flue gas inlet and the flue gas outlet;
a premixing cold air inlet and a premixing hot air outlet are formed in the front side of the heat exchange cavity, and a plate heat exchanger is arranged between the premixing cold air inlet and the premixing hot air outlet;
the left end shaping of heat transfer cavity rear side has drain pipe and explosion vent, separates the setting from top to bottom through the baffle between drain pipe and the explosion vent each other.
2. The energy efficient flue gas recoverer as set forth in claim 1, wherein: the plate heat exchanger comprises a plurality of heat exchange plates and two heat exchange brackets, wherein the heat exchange plates are arranged at equal intervals, the two heat exchange brackets are respectively and fixedly arranged at the left end and the right end in the heat exchange cavity, a plurality of positioning grooves are formed in the heat exchange brackets, and the left end and the right end of each heat exchange plate are respectively and fixedly arranged in the positioning grooves of the heat exchange brackets.
3. The energy efficient flue gas recoverer as claimed in claim 2, wherein: the middle part shaping of heat exchange plate has the vent, and the vent of heat exchange plate runs through the heat exchange support setting through the location fluting, and the vent intercommunication of a plurality of heat exchange plates sets up between high temperature flue gas air inlet and flue gas outlet.
4. The energy efficient flue gas recoverer as claimed in claim 2, wherein: the heat exchange air channels are formed at intervals among the heat exchange plates and are communicated between the premixed cold air inlet and the premixed hot air outlet.
5. The energy efficient flue gas recoverer as claimed in claim 2, wherein: the heat exchange plate is made of stainless steel.
6. The energy efficient flue gas recoverer as set forth in claim 1, wherein: the left end shaping of heat transfer cavity front side has the backward flow mouth, and the backward flow mouth sets up the below at the baffle.
7. The energy efficient flue gas recoverer as set forth in claim 1, wherein: the premixing hot air outlet is connected and provided with a premixing hot air pipe, and a pipeline supporting frame is fixedly arranged between the front side of the heat exchange cavity and the premixing hot air pipe.
8. The energy efficient flue gas recoverer as set forth in claim 1, wherein: the upper side edge of the explosion-proof door is hinged and matched with a cover plate, the explosion-proof door is obliquely arranged, and the cover plate covers the explosion-proof door through self gravity.
CN202320726695.6U 2023-04-06 2023-04-06 High-efficiency energy-saving flue gas recoverer Active CN219589501U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202320726695.6U CN219589501U (en) 2023-04-06 2023-04-06 High-efficiency energy-saving flue gas recoverer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202320726695.6U CN219589501U (en) 2023-04-06 2023-04-06 High-efficiency energy-saving flue gas recoverer

Publications (1)

Publication Number Publication Date
CN219589501U true CN219589501U (en) 2023-08-25

Family

ID=87699143

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202320726695.6U Active CN219589501U (en) 2023-04-06 2023-04-06 High-efficiency energy-saving flue gas recoverer

Country Status (1)

Country Link
CN (1) CN219589501U (en)

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