CN101672594B - Novel on-line hydrogen-removal long-acting row-type tube bundle steel-water heat tube air preheater - Google Patents
Novel on-line hydrogen-removal long-acting row-type tube bundle steel-water heat tube air preheater Download PDFInfo
- Publication number
- CN101672594B CN101672594B CN2009103083607A CN200910308360A CN101672594B CN 101672594 B CN101672594 B CN 101672594B CN 2009103083607 A CN2009103083607 A CN 2009103083607A CN 200910308360 A CN200910308360 A CN 200910308360A CN 101672594 B CN101672594 B CN 101672594B
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- heat
- tube
- row
- collection chamber
- casing
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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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
- Y02P20/129—Energy recovery, e.g. by cogeneration, H2recovery or pressure recovery turbines
Abstract
The invention relates to a novel on-line hydrogen-removal long-acting row-type tube bundle steel-a water heat tube air preheater. In the invention, all single heat tubes are connected and set to be a row-type heat tube; at least two rows of heat tubes are set to be a group of tube bundle; and the preheater comprises a group or at least two groups of tube bundles I and tube bundles II. The tube bundles are arranged in a sealing box body and every row of heat tubes are provided with a gas collecting chamber and a mesh medicament frame; the gas collecting chamber of every group of tube bundles is arranged outside the box body which is provided with a high-temperature fluid inlet and outlet and a low-temperature fluid inlet and outlet. The upper parts of every row of heat tubes are connected together by a gas collecting tube and the lower parts thereof are connected together by a liquid collecting tube; and every sealing tube is internally filed with working medium for transferring heat quantity. The water heat tube air preheater can guarantee the heat tubes to run for more than 6 years in high efficiency, guarantees the heat transmission balance of the heat tubes, increases the anti dew point corrosion capability of the heat tube, can be added with hydrogen-removal agent again, and only needs the gas collecting chambers to be sealed; and the heat tubes does not need to be pulled out to be regenerated or replaced, thus greatly reducing maintenance amount or saving the cost required by replacing the heat tubes.
Description
Technical field
The present invention relates to waste heat recovery apparatus, refer in particular to a kind of novel on-line hydrogen-removal long-acting row-type tube bundle water steel heat pipe air preheater.
Background technology
The water steel heat pipe air preheater is a kind of waste heat recovery apparatus of using always, is widely used in industries such as petrochemical industry, metallurgy.Heat-pipe air preheater is arranged in the casing by certain way by many unit heat pipe and forms.The basic principle of heat pipe is that a small amount of working medium (water) gasifies in the hot junction in the sealed tube, in the cold junction condensation, thus the transmission of realization heat.Because the incompatibility of steel and water in the water steel heat pipe, heat pipe in use will produce hydrogen (fixed gas), because hydrogen is difficult to condensation, hydrogen constantly produces in heat pipe, gathers, and causes the adopting heat pipes for heat transfer performance to descend, even loses efficacy, so heat pipe uses (1-3) behind certain time limit, every heat pipe to be extracted in preheater, be changed or regenerate, could guarantee that like this heat-pipe air preheater efficiently moves.
Summary of the invention
The objective of the invention is to be improved, a kind of novel on-line hydrogen-removal long-acting row-type tube bundle water steel heat pipe air preheater is provided at shortcoming that exists in the background technology and problem.
Technical scheme of the present invention is a kind of preheater that comprises following structure of structure:
Each single heat pipe connected formula heat pipe in a row is set, more at least two heat extraction pipes are arranged to one group of tube bank, and preheater by one group or at least two groups tube bank I with restrain II and form.
Described tube bank is arranged in the casing of sealing, and every heat extraction pipe is provided with collection chamber and mesh medicament frame, and the collection chamber of every group of tube bank all is arranged on outside the casing, and casing is provided with that high temperature fluid is imported and exported and the cryogen import and export.
The top of described every heat extraction pipe is by discharge, and the below is coupled together every heat pipe by collector tube, and working medium transmission heat is housed in the pipe of every sealing.
Advantage of the present invention and beneficial effect:
1, can guarantee that the efficient and long period operation of heat pipe is more than 6 years.
2, can guarantee the harmony of adopting heat pipes for heat transfer, improve the ability of heat pipe dew-point corrosion resistant.
If after 3 heat pipe service times were very long, deleterious can add the dehydrogenation agent again, the collection chamber good seal is got final product, heat pipe need not extracted regeneration or change.
4, significantly reduced maintenance capacity or save the expense that heat exchanger tube more etc. needs.
Description of drawings
Fig. 1 is a front view of the present invention.
Fig. 2 is Fig. 1 side view.
Fig. 3 is Fig. 1 vertical view.
Fig. 4 is a heat pipe collection chamber cross-sectional view.
The specific embodiment
By Fig. 1 to 4 as can be known, the present invention includes:
Each single heat pipe 1 connected formula heat pipe in a row is set, more at least two heat extraction pipes are arranged to one group of tube bank, and preheater by one group or at least two groups tube bank I with restrain II and form;
Described tube bank is arranged in the casing of sealing, and every heat extraction pipe is provided with collection chamber 2 and mesh medicament frame 3, and the collection chamber 2 of every group of tube bank all is arranged on outside the casing, and casing is provided with that high temperature fluid is imported and exported and the cryogen import and export;
The top of described every heat extraction pipe is by discharge 4, and the below is coupled together every heat pipe 1 by collector tube 5, and working medium transmission heat is housed in the pipe of every sealing.
The casing that tube bank is set of the present invention comprises hot junction casing 6 and cold junction casing 7, between two tanks, be provided with central dividing plate 8, central dividing plate 8 tops are the heat release section of tube bank, and the below is the heating section of tube bank, is provided with sealing ring 9 and support ring 10 around the central dividing plate 8.Described collection chamber 2 comprises mesh medicament frame 3, dehydrogenation medicament 31, link block 21, and wherein mesh medicament frame 3 is located at collection chamber 2 tops, is provided with dehydrogenation medicament 31 in the mesh medicament frame 3, and the top that link block 21 is arranged on collection chamber is used for dosing.
Structural principle of the present invention:
The present invention becomes single heat pipe into row's formula heat pipe, and every heat extraction pipe is communicated with up and down.In order to make and easy to maintenance, a few heat extraction pipes can be made one group of heat pipe tube bank, many group heat pipes are restrained in the framework of packing into and have just been formed a complete heat pipe preheater, the centre is divided into hot junction, two casings of cold junction with dividing plate with preheater, central dividing plate seals with sealing ring, stops the cigarette air to be gone here and there mutually; The fixed gas that heat pipe produces in running enters in the collection chamber by discharge, put into the dehydrogenation agent of capacity in collection chamber, the hydrogen reaction that produces in the heat pipe running is become water, water flows into heat pipe and becomes working medium, can avoid hydrogen in heat pipe, to gather like this, influence the Heat Transfer of Heat Pipe on Heat Pipe performance.
Embodiment of the present invention only is the description that preferred implementation of the present invention is carried out; be not that design of the present invention and scope are limited; do not breaking away under the preceding topic of design philosophy of the present invention; engineers and technicians make technical scheme of the present invention in this area various modification and improvement; all should fall into protection scope of the present invention; the technology contents that the present invention asks for protection all is documented in claims.
Claims (2)
1. novel on-line hydrogen-removal long-acting row-type tube bundle water steel heat pipe air preheater is characterized in that:
Each single heat pipe (1) connected formula heat pipe in a row is set, more at least two heat extraction pipes are arranged to one group of tube bank, and preheater is restrained by one group or two groups form at least;
Described tube bank is arranged in the casing of sealing, every heat extraction pipe is provided with collection chamber (2), collection chamber (2) is connected with discharge (4), and the collection chamber (2) of every group of tube bank all is arranged on outside the casing, and casing is provided with that high temperature fluid is imported and exported and the cryogen import and export;
Described collection chamber (2) comprises mesh medicament frame (3), dehydrogenation medicament (31), link block (21), wherein mesh medicament frame (3) is located at collection chamber (2) top, be provided with dehydrogenation medicament (31) in the mesh medicament frame (3), the top that link block (21) is arranged on collection chamber is used for dosing;
The top of described every heat extraction pipe is by discharge (4), and the below is coupled together every heat pipe (1) by collector tube (5), and working medium transmission heat is housed in the pipe of every sealing.
2. novel on-line hydrogen-removal long-acting row-type tube bundle water steel heat pipe air preheater according to claim 1, it is characterized in that the described casing that tube bank is set comprises hot junction casing (6) and cold junction casing (7), between two tanks, be provided with central dividing plate (8), central dividing plate (8) top is the heat release section of tube bank, the below is the heating section of tube bank, and central dividing plate (8) is provided with sealing ring (9) and support ring (10) on every side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009103083607A CN101672594B (en) | 2009-10-16 | 2009-10-16 | Novel on-line hydrogen-removal long-acting row-type tube bundle steel-water heat tube air preheater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009103083607A CN101672594B (en) | 2009-10-16 | 2009-10-16 | Novel on-line hydrogen-removal long-acting row-type tube bundle steel-water heat tube air preheater |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101672594A CN101672594A (en) | 2010-03-17 |
| CN101672594B true CN101672594B (en) | 2010-10-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009103083607A Expired - Fee Related CN101672594B (en) | 2009-10-16 | 2009-10-16 | Novel on-line hydrogen-removal long-acting row-type tube bundle steel-water heat tube air preheater |
Country Status (1)
| Country | Link |
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| CN (1) | CN101672594B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109269331A (en) * | 2018-10-30 | 2019-01-25 | 江苏龙净节能科技有限公司 | A kind of two-period form heat pipe rotational flow heat exchanger |
| CN110193500B (en) * | 2019-05-07 | 2020-06-16 | 中国石油天然气集团有限公司 | Coiled tubing dehydrogenation system and coiled tubing dehydrogenation method using same |
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2009
- 2009-10-16 CN CN2009103083607A patent/CN101672594B/en not_active Expired - Fee Related
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| Publication number | Publication date |
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| CN101672594A (en) | 2010-03-17 |
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| C14 | Grant of patent or utility model | ||
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101027 Termination date: 20131016 |