CN217179349U - Tube-plate type flue gas heat exchanger - Google Patents
Tube-plate type flue gas heat exchanger Download PDFInfo
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- CN217179349U CN217179349U CN202220942102.5U CN202220942102U CN217179349U CN 217179349 U CN217179349 U CN 217179349U CN 202220942102 U CN202220942102 U CN 202220942102U CN 217179349 U CN217179349 U CN 217179349U
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- tube
- heat exchanger
- heat exchange
- flue gas
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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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/30—Technologies for a more efficient combustion or heat usage
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Abstract
The utility model discloses a tube sheet formula flue gas heat exchanger relates to the waste heat recovery field, manages and draw together heat exchanger shell and a plurality of tube sheet heat transfer unit who is fixed in the heat exchanger shell side by side, has seted up air inlet and gas outlet on the heat exchanger shell, is provided with feed liquor passageway and liquid outlet channel on the heat exchanger shell, adjacent two form the passageway of taking a breath between the tube sheet heat transfer unit, and respectively take a breath passageway one end and air inlet intercommunication, respectively take a breath the passageway other end with the gas outlet intercommunication, tube sheet heat transfer unit include the heat exchange tube and be fixed in two corrosion resistant plate of heat exchange tube both sides respectively, corrode the marginal fixed connection of board circumference and live the heat exchange tube cladding, the both ends of each heat exchange tube communicate with feed liquor passageway and liquid outlet channel respectively. The utility model provides a tube sheet formula flue gas heat exchanger simple structure, waste heat recovery rate is high, and corrosion resistance is strong, long service life.
Description
Technical Field
The utility model relates to a waste heat recovery field especially relates to a tube sheet formula gas heater.
Background
The traditional flue gas heat exchanger adopts a finned tube type structure, has large flue gas resistance, causes poor flue gas heat utilization rate, poor corrosion resistance and short service life, and causes heat energy waste.
Disclosure of Invention
The utility model aims at providing a tube sheet formula gas heater to solve the problem that above-mentioned prior art exists, can improve flue gas waste heat utilization rate, and corrosion resistance is good, long service life.
In order to achieve the purpose, the invention provides the following scheme:
the utility model provides a tube sheet formula flue gas heat exchanger, be fixed in side by side including heat exchanger shell and a plurality of tube sheet heat transfer unit in the heat exchanger shell, air inlet and gas outlet have been seted up on the shell, be provided with inlet channel and liquid outlet channel on the shell, adjacent two form the passageway of taking a breath between the tube sheet heat transfer unit, and each take a breath passageway one end with the air inlet intercommunication, each take a breath the passageway other end with the gas outlet intercommunication, the tube sheet heat transfer unit include the heat exchange tube and be fixed in respectively two corrosion resisting plates of heat exchange tube both sides, corrosion resisting plate circumference edge fixed connection will the heat exchange tube cladding is lived, each the both ends of heat exchange tube respectively with inlet channel with the liquid outlet channel intercommunication.
Preferably, the corrosion-resistant plate is punched and formed with a groove, and the heat exchange tube is embedded and fixed in the groove.
Preferably, the adjacent tube plate heat exchange units are arranged in parallel.
Preferably, the distance between the adjacent tube plate heat exchange units is 80-120 mm.
Preferably, the corrosion-resistant plate and the heat exchange tube are connected by adopting a resistance welding process.
Preferably, the heat exchange tube is a stainless steel coiled tube.
Preferably, each of the tube plate heat exchange units is detachably connected to the heat exchanger shell.
Preferably, the two ends of the heat exchanger shell in the first direction are respectively a first end and a second end, the air inlet and the liquid outlet channel are both arranged at the first end, and the air outlet and the liquid inlet channel are both arranged at the second end.
The utility model discloses for prior art gain following technological effect:
the utility model provides a tube-sheet type flue gas heat exchanger, which comprises a heat exchanger shell and a plurality of tube-sheet heat exchange units fixed in the heat exchanger shell side by side, wherein the shell is provided with an air inlet and an air outlet for flue gas circulation, the shell is provided with a liquid inlet channel and a liquid outlet channel, a gas exchange channel is formed between two adjacent tube-sheet heat exchange units, one end of each gas exchange channel is communicated with the air inlet, the other end of the gas exchange channel is communicated with the air outlet, the tube-sheet heat exchange units comprise heat exchange tubes and two corrosion-resistant plates fixed on two sides of the heat exchange tubes respectively, the circumferential edges of the corrosion-resistant plates are fixedly connected and cover the heat exchange tubes, two ends of each heat exchange tube are respectively communicated with the liquid inlet channel and the liquid outlet channel, liquid enters the interior of the heat exchange tubes from the liquid inlet channel, when flue gas flows through the gas exchange channel, the liquid in the heat exchange tubes can absorb heat energy in the flue gas and then flows out from the liquid outlet channel, the corrosion-resistant plate surface covers has fine and close oxide film, can improve tube sheet heat exchange unit's corrosion resistance, and the plate formula structure that is formed by two corrosion-resistant plate cladding heat exchange tubes can make the flue gas resistance be less than finned tube flue gas resistance far away under the state of high flue gas velocity of flow, and the heat transfer coefficient and the condensation effect of heat exchanger promote by a wide margin under the state of high flue gas velocity of flow like this, effectively promote waste heat utilization.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural view of a tube-plate type flue gas heat exchanger according to a first embodiment;
FIG. 2 is a side view of a tube sheet heat exchange unit;
in the figure: 100-tube plate heat exchange unit, 1-corrosion-resistant plate, 2-heat exchange tube, 3-heat exchanger shell, 4-liquid inlet channel and 5-liquid outlet channel.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and 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, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The utility model aims at providing a tube sheet formula gas heater to solve the problem that above-mentioned prior art exists, enough improve flue gas waste heat utilization rate, and corrosion resistance is good, long service life.
In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention is described in detail with reference to the accompanying drawings and the detailed description.
The utility model provides a tube-sheet type flue gas heat exchanger, as shown in figures 1-2, comprising a heat exchanger shell 3 and a plurality of tube-sheet heat exchange units 100 fixed in the heat exchanger shell side by side, the shell is provided with an air inlet and an air outlet for flue gas circulation, the shell is provided with a liquid inlet channel 4 and a liquid outlet channel 5, a gas exchange channel is formed between two adjacent tube-sheet heat exchange units, one end of each gas exchange channel is communicated with the air inlet for introducing flue gas, the other end of the gas exchange channel is communicated with the air outlet for flue gas outflow, the tube-sheet heat exchange units 100 comprise a heat exchange tube 2 and two corrosion-resistant plates 1 respectively fixed on two sides of the heat exchange tube, the circumferential edges of the corrosion-resistant plates 1 are fixedly connected and cover the heat exchange tube 2, two ends of each heat exchange tube are respectively communicated with the liquid inlet channel 4 and the liquid outlet channel 5, liquid enters the inside the heat exchange tube 2 through the liquid inlet channel 4, when flue gas flows through the gas exchange channel, liquid in the heat exchange tube 2 can absorb the heat energy in the flue gas, then flow by play liquid channel 5, corrosion-resistant plate 1 surface covers has fine and close oxide film, can improve the corrosion resistance of tube sheet heat transfer unit, and by the plate formula structure that two corrosion-resistant plate 1 cladding heat exchange tube 2 formed, can make the flue gas resistance be less than finned tube flue gas resistance far away under the state of high flue gas velocity of flow, the heat transfer coefficient and the condensation effect of heat exchanger promote by a wide margin under the high flue gas velocity of flow state like this, effectively promote waste heat utilization.
In the alternative of this embodiment, it is preferred that corrosion-resistant plate 1 stamping forming recess, in being fixed to corrosion-resistant plate 1's recess with the heat exchange tube 2 embedding, increase the fastening nature of heat exchange tube 2 and corrosion-resistant version.
In an alternative scheme of this embodiment, it is preferable that adjacent tube plate heat exchange units 100 are arranged in parallel to each other, so as to ensure that each tube plate heat exchange unit 100 is uniformly heated.
In the alternative of this embodiment, it is preferable that the distance between adjacent tube sheet heat exchange units 100 is 80-120mm, and it is preferable that the distance is 80mm, so that the flue gas waste heat utilization rate can be better ensured while the flue gas passing speed is increased.
In the alternative of this embodiment, it is preferable that the corrosion-resistant plate 1 and the heat exchange tube 2 are connected by a resistance welding process, so that the tightness can be increased and the falling-off can be prevented.
In the alternative of this embodiment, it is preferable that the heat exchange tube 2 is a stainless steel coiled tube to increase the contact time with the flue gas.
In the alternative of this embodiment, it is more preferred that each tube sheet heat exchange unit 1 all can be connected with heat exchanger shell 3 with dismantling, when discovering that a certain tube sheet tube heat unit 1 damages, can in time change, increases the maintenance convenience.
In the alternative of this embodiment, it is preferred, as shown in fig. 1, the both ends on the 3 first direction of heat exchanger shell are first end and second end respectively, and air inlet and drain passage 5 all set up on the first end, and air outlet and inlet channel 4 all set up on the second end, and flue gas circulation direction is opposite with rivers direction, can increase the contact time of flue gas and water, the difference in temperature of make full use of flue gas and water.
The utility model discloses a concrete example is applied to explain the principle and the implementation mode of the utility model, and the explanation of the above example is only used to help understand the method and the core idea of the utility model; meanwhile, for the general technical personnel in the field, according to the idea of the present invention, there are changes in the concrete implementation and the application scope. In summary, the content of the present specification should not be construed as a limitation of the present invention.
Claims (8)
1. The utility model provides a tube sheet formula gas heater which characterized in that: including heat exchanger shell and a plurality of being fixed in side by side tube sheet heat transfer unit in the heat exchanger shell, air inlet and gas outlet have been seted up on the heat exchanger shell, be provided with inlet channel and liquid outlet channel on the heat exchanger shell, adjacent two form the passageway of taking a breath between the tube sheet heat transfer unit, and each the passageway one end of taking a breath with the air inlet intercommunication, each the passageway other end of taking a breath with the gas outlet intercommunication, tube sheet heat transfer unit include the heat exchange tube and be fixed in respectively two corrosion-resistant plates of heat exchange tube both sides, corrosion-resistant plate circumference edge fixed connection will the heat exchange tube cladding, each the both ends of heat exchange tube respectively with inlet channel with liquid outlet channel intercommunication.
2. The tube-plate flue gas heat exchanger according to claim 1, wherein: the corrosion-resistant plate is punched and formed with a groove, and the heat exchange tube is embedded and fixed in the groove.
3. The tube-plate flue gas heat exchanger according to claim 1, wherein: and the adjacent tube plate heat exchange units are arranged in parallel.
4. The tube-plate flue gas heat exchanger according to claim 1, wherein: and the distance between the adjacent tube plate heat exchange units is 80-120 mm.
5. The tube-plate flue gas heat exchanger according to claim 1, wherein: the corrosion-resistant plate and the heat exchange tube are connected by adopting a resistance welding process.
6. The tube-plate flue gas heat exchanger according to claim 1, wherein: the heat exchange tube adopts a stainless steel coil pipe.
7. The tube-plate flue gas heat exchanger according to claim 1, wherein: each tube plate heat exchange unit can be detachably connected with the heat exchanger shell.
8. The tube-plate flue gas heat exchanger according to claim 1, wherein: the two ends of the heat exchanger shell in the first direction are respectively a first end and a second end, the air inlet and the liquid outlet channel are both arranged on the first end, and the air outlet and the liquid inlet channel are both arranged on the second end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220942102.5U CN217179349U (en) | 2022-04-22 | 2022-04-22 | Tube-plate type flue gas heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220942102.5U CN217179349U (en) | 2022-04-22 | 2022-04-22 | Tube-plate type flue gas heat exchanger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217179349U true CN217179349U (en) | 2022-08-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220942102.5U Active CN217179349U (en) | 2022-04-22 | 2022-04-22 | Tube-plate type flue gas heat exchanger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217179349U (en) |
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2022
- 2022-04-22 CN CN202220942102.5U patent/CN217179349U/en active Active
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