CN212930068U - Two-phase flow phase-change heat absorbing sheet - Google Patents
Two-phase flow phase-change heat absorbing sheet Download PDFInfo
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- CN212930068U CN212930068U CN202021079611.7U CN202021079611U CN212930068U CN 212930068 U CN212930068 U CN 212930068U CN 202021079611 U CN202021079611 U CN 202021079611U CN 212930068 U CN212930068 U CN 212930068U
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- tube
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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
- Y02E20/34—Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery
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Abstract
The utility model discloses a two-phase flow phase transition heat absorbing sheet, its characterized in that: the heat-absorbing finned tube comprises an upper communicating tube and a lower communicating tube which are vertically distributed, wherein a plurality of heat-absorbing finned tubes which are arranged in rows at left and right intervals are connected between the upper communicating tube and the lower communicating tube, the upper end and the lower end of each heat-absorbing finned tube are respectively communicated with the upper communicating tube and the lower communicating tube, the smoke facing surface of each heat-absorbing finned tube is respectively provided with an anti-abrasion tile, and a temperature adjusting tube which is used for adjusting the temperature of working medium steam in the upper communicating tube in a matching manner is arranged in the upper communicating tube. The utility model has the advantages that: high heat transfer efficiency, good energy-saving effect, small volume, light weight, convenient assembly and maintenance, corrosion resistance, wear resistance and long service life.
Description
Technical Field
The utility model relates to an energy-saving equipment technical field of trades such as electric power, chemical industry metallurgy, concretely relates to two-phase flow phase transition heat absorbing sheet.
Background
The boiler smoke heat loss is one of the main heat losses in a power station boiler, and the smoke heat loss is one of the largest heat losses of the coal-fired primary boilers and accounts for more than 75% of the total heat loss of the coal-fired boiler. The main factor causing the heat loss of the exhaust gas is the exhaust gas temperature, and in general, every 10 ℃ increase of the exhaust gas temperature is as follows: the heat loss of the exhaust gas is increased by 0.6-1%, and the heat consumption is increased by 1.2-2.4%. In addition, the overhigh exhaust gas temperature not only can seriously reduce the utilization rate of energy, but also can greatly influence a subsequent desulfurization flue gas treatment system for treating the flue gas, reduce the dust removal efficiency of a dust remover and increase the water consumption of a desulfurization tower. In order to more effectively utilize the flue gas waste heat and further improve the economy of the unit, a flue gas cooling device needs to be developed, so that the flue gas waste heat is deeply utilized, and the utilization efficiency of the flue gas waste heat is improved.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a simple structure, equipment convenience and energy-conserving effectual two-phase flow phase transition heat absorbing sheet.
In order to achieve the above purpose, the utility model adopts the following technical scheme: the two-phase flow phase change heat absorption sheet comprises an upper communicating pipe and a lower communicating pipe which are vertically distributed, wherein a plurality of heat absorption finned tubes which are arranged in rows at intervals left and right are connected between the upper communicating pipe and the lower communicating pipe, the upper end and the lower end of each heat absorption finned tube are respectively communicated with the upper communicating pipe and the lower communicating pipe, the smoke facing surface of each heat absorption finned tube is respectively provided with an anti-abrasion tile, and a temperature adjusting pipe which is used for adjusting the temperature of working medium steam in the upper communicating pipe in a matching mode is arranged in the upper communicating pipe in a penetrating mode.
Further, the two-phase flow phase change heat sink sheet includes: the specific mounting structure of the wear tile includes: the smoke-back side of the anti-abrasion tile is provided with a clamp with a U-shaped bayonet, and the anti-abrasion tile is detachably mounted on the heat absorption finned tube by buckling the U-shaped bayonet of the clamp on the heat absorption finned tube.
Further, the two-phase flow phase change heat sink sheet includes: and guide plates for guiding the smoke to flow to the heat absorption finned tubes are respectively arranged on the smoke facing sides of the upper communicating tube and the lower communicating tube.
Further, the two-phase flow phase change heat sink sheet includes: and the outer parts of the upper communicating pipe and the lower communicating pipe are all surrounded with a collecting pipe protecting plate for protecting the corresponding communicating pipe.
Further, the two-phase flow phase change heat sink sheet includes: the heat absorption finned tubes of the left half part are left-handed finned tubes, and the heat absorption finned tubes of the right half part are right-handed finned tubes.
Further, the two-phase flow phase change heat sink sheet includes: the steam temperature controller also comprises a controller, a temperature regulating water source, a regulating pump and a thermocouple for detecting the temperature of the working medium steam in the upper communicating pipe, wherein the temperature regulating pipe is connected with the temperature regulating water source through the regulating pump, and the controller is simultaneously electrically connected with the regulating pump and the thermocouple.
Through the implementation of the above technical scheme, the beneficial effects of the utility model are that: high heat transfer efficiency, good energy-saving effect, small volume, light weight, convenient assembly and maintenance, corrosion resistance, wear resistance and long service life.
Drawings
Fig. 1 is a schematic view of a structural principle of a two-phase flow phase change heat sink sheet according to the present invention.
Fig. 2 is a schematic structural view in a left-side view direction of fig. 1.
Fig. 3 is an enlarged schematic view of a portion a shown in fig. 2.
Fig. 4 is a schematic view of the relationship between the heat absorbing finned tubes and the wear-resistant tiles shown in the top view of fig. 2.
Fig. 5 is an enlarged schematic view of a portion B shown in fig. 2.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
As shown in fig. 1, 2, 3, 4 and 5, the two-phase-change heat absorption sheet comprises an upper communicating pipe 1 and a lower communicating pipe 2 which are distributed up and down, a plurality of heat absorption finned tubes 3 which are arranged in rows at intervals left and right are connected between the upper communicating pipe 1 and the lower communicating pipe 2, the upper end and the lower end of each heat absorption finned tube 3 are respectively communicated with the upper communicating pipe 1 and the lower communicating pipe 2, the smoke facing surface of each heat absorption finned tube 3 is respectively provided with an anti-abrasion tile 4, the anti-abrasion tiles 4 can protect the heat absorption finned tubes, the heat absorption finned tubes are prevented from being directly scoured and damaged by smoke, and the service life of the equipment is prolonged; a temperature adjusting pipe 9 for adjusting the temperature of the working medium steam in the upper communicating pipe 1 in a matching way is arranged in the upper communicating pipe 1 in a penetrating way; in this embodiment, the temperature adjusting pipe 9 adjusts the temperature of the working medium steam in the upper communicating pipe 1 by matching the controller 5, the temperature adjusting water source 6, the adjusting pump 7 and the thermocouple 8 for detecting the temperature of the working medium steam in the upper communicating pipe 1, the controller 5 is electrically connected with the adjusting pump 7 and the thermocouple 8 at the same time, when the controller 5 works, the controller 5 can automatically control and adjust the flow rate of water flowing through the temperature adjusting pipe 9 by the adjusting pump 7 according to the temperature of the working medium steam in the upper communicating pipe 1 fed back by the thermocouple 8, so that the working medium steam in the upper communicating pipe 1 exchanges heat with the temperature adjusting pipe 9, the temperature of the working medium steam in the upper communicating pipe 1 is adjusted, and the temperature of the working medium steam discharged into the next process is ensured to meet the requirements of the next process;
in this embodiment, the specific mounting structure of the wear tile 4 includes: the clip 10 with the U-shaped bayonet is arranged on the smoke-back side of the anti-abrasion tile 4, the anti-abrasion tile 4 is detachably mounted on the heat absorption finned tube 3 by buckling the U-shaped bayonet of the clip 10 on the heat absorption finned tube 3, so that the anti-abrasion tile is convenient to disassemble, assemble and replace, and the mounting and maintenance efficiency is improved; in the embodiment, the smoke facing sides of the upper communicating pipe 1 and the lower communicating pipe 2 are respectively provided with a guide plate 11 for guiding smoke to flow to the heat absorption finned tube, and the outsides of the upper communicating pipe 1 and the lower communicating pipe 2 are respectively provided with a collecting pipe guard plate 12 for protecting the corresponding communicating pipe, so that the service life of the equipment can be prolonged; in the embodiment, the heat absorption finned tubes of the left half part are left-handed finned tubes, and the heat absorption finned tubes of the right half part are right-handed finned tubes, so that heat exchange can be better performed with flue gas, and the heat exchange efficiency is improved;
when the phase-change heat absorbing fin tube is in work, liquid working media (usually water) in each heat absorbing fin tube 3 in the phase-change heat absorbing sheet exchange heat with superheated flue gas (the flue gas temperature is 160 ℃) discharged by a boiler to cool the superheated flue gas discharged by the boiler, the flue gas temperature of the superheated flue gas is reduced to 115 ℃ after heat exchange, the liquid working media in each heat absorbing fin tube 3 in the phase-change heat absorbing sheet absorb heat and raise the temperature and evaporate to form working medium steam, and the working medium steam is collected to the upper communicating tube 1 through the corresponding heat absorbing fin tubes 3 in sequence and then discharged to a next process; in the operation process, the controller 5 can automatically control and adjust the flow velocity of water flowing through the temperature adjusting pipe 9 through the adjusting pump 7 according to the temperature of the working medium steam in the upper communicating pipe 1 fed back by the thermocouple 8, so that the working medium steam in the upper communicating pipe 1 exchanges heat with the temperature adjusting pipe 9, the temperature of the working medium steam in the upper communicating pipe 1 is adjusted, and the temperature of the working medium steam discharged into a subsequent process is ensured to meet the requirements of the subsequent process.
The utility model has the advantages that: high heat transfer efficiency, good energy-saving effect, small volume, light weight, convenient assembly and maintenance, corrosion resistance, wear resistance and long service life.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, and any modifications or equivalent changes made in accordance with the technical spirit of the present invention are also within the scope of the present invention.
Claims (6)
1. Two-phase flow phase transition heat absorption piece, its characterized in that: the heat-absorbing finned tube comprises an upper communicating tube and a lower communicating tube which are vertically distributed, wherein a plurality of heat-absorbing finned tubes which are arranged in rows at left and right intervals are connected between the upper communicating tube and the lower communicating tube, the upper end and the lower end of each heat-absorbing finned tube are respectively communicated with the upper communicating tube and the lower communicating tube, the smoke facing surface of each heat-absorbing finned tube is respectively provided with an anti-abrasion tile, and a temperature adjusting tube which is used for adjusting the temperature of working medium steam in the upper communicating tube in a matching manner is arranged in the upper communicating tube.
2. The two-phase flow phase change heat sink of claim 1, wherein: the specific mounting structure of the wear tile includes: the smoke-back side of the anti-abrasion tile is provided with a clamp with a U-shaped bayonet, and the anti-abrasion tile is detachably mounted on the heat absorption finned tube by buckling the U-shaped bayonet of the clamp on the heat absorption finned tube.
3. The two-phase flow phase change heat sink of claim 1 or 2, wherein: and guide plates for guiding the smoke to flow to the heat absorption finned tubes are respectively arranged on the smoke facing sides of the upper communicating tube and the lower communicating tube.
4. The two-phase flow phase change heat sink of claim 3, wherein: and the outer parts of the upper communicating pipe and the lower communicating pipe are all surrounded with a collecting pipe protecting plate for protecting the corresponding communicating pipe.
5. The two-phase flow phase change heat sink of claim 1, wherein: the heat absorption finned tubes of the left half part are left-handed finned tubes, and the heat absorption finned tubes of the right half part are right-handed finned tubes.
6. The two-phase flow phase change heat sink of claim 1, wherein: the steam temperature controller also comprises a controller, a temperature regulating water source, a regulating pump and a thermocouple for detecting the temperature of the working medium steam in the upper communicating pipe, wherein the temperature regulating pipe is connected with the temperature regulating water source through the regulating pump, and the controller is simultaneously electrically connected with the regulating pump and the thermocouple.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021079611.7U CN212930068U (en) | 2020-06-12 | 2020-06-12 | Two-phase flow phase-change heat absorbing sheet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021079611.7U CN212930068U (en) | 2020-06-12 | 2020-06-12 | Two-phase flow phase-change heat absorbing sheet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212930068U true CN212930068U (en) | 2021-04-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021079611.7U Active CN212930068U (en) | 2020-06-12 | 2020-06-12 | Two-phase flow phase-change heat absorbing sheet |
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| Country | Link |
|---|---|
| CN (1) | CN212930068U (en) |
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2020
- 2020-06-12 CN CN202021079611.7U patent/CN212930068U/en active Active
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