CN113218215B - Shell-and-tube high-temperature heat exchanger - Google Patents
Shell-and-tube high-temperature heat exchanger Download PDFInfo
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- CN113218215B CN113218215B CN202110533907.4A CN202110533907A CN113218215B CN 113218215 B CN113218215 B CN 113218215B CN 202110533907 A CN202110533907 A CN 202110533907A CN 113218215 B CN113218215 B CN 113218215B
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- shell
- tube
- heat exchange
- cylinder
- cooling air
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
- F28D7/16—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged in parallel spaced relation
- F28D7/163—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged in parallel spaced relation with conduit assemblies having a particular shape, e.g. square or annular; with assemblies of conduits having different geometrical features; with multiple groups of conduits connected in series or parallel and arranged inside common casing
- F28D7/1638—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged in parallel spaced relation with conduit assemblies having a particular shape, e.g. square or annular; with assemblies of conduits having different geometrical features; with multiple groups of conduits connected in series or parallel and arranged inside common casing with particular pattern of flow or the heat exchange medium flowing inside the conduits assemblies, e.g. change of flow direction from one conduit assembly to another one
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
- F28F9/22—Arrangements for directing heat-exchange media into successive compartments, e.g. arrangements of guide plates
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
- F28F9/22—Arrangements for directing heat-exchange media into successive compartments, e.g. arrangements of guide plates
- F28F2009/222—Particular guide plates, baffles or deflectors, e.g. having particular orientation relative to an elongated casing or conduit
Abstract
The invention discloses a shell-and-tube high-temperature heat exchanger, comprising: the top of the smoke box is provided with a transition section cylinder, a cold side discharging cylinder with a cold side output port is arranged outside the transition section cylinder, the top of the transition section cylinder is provided with a shell side cylinder, the top of the shell side cylinder is provided with a chimney, a cold side input cylinder with a cold side input port is arranged outside the chimney, a heat exchange tube bundle arranged in the shell side cylinder is respectively communicated with the cold side input cylinder and the cold side discharging cylinder, the bottom of the shell side cylinder is provided with a bottom first tube plate and a bottom second tube plate, and a cooling cavity is formed between the bottom first tube plate and the bottom second tube plate; and a cooling air inlet is formed in the outer side wall of the cooling cavity, a cooling air outlet is formed in the inner side wall of the cooling cavity, and the cooling air outlet is communicated with the shell side barrel. The invention has the advantages that: the problems of tube plate cracking, weld joint tensile cracking, stress fatigue and the like at the connecting position of the heat exchange tube and the bottom tube plate can be effectively avoided, and the heated uniformity of the gas to be heated is good.
Description
Technical Field
The invention relates to the technical field of high-temperature heat exchangers, in particular to a shell-and-tube high-temperature heat exchanger.
Background
In incineration units in the petrochemical and environmental protection fields, combustion air is generally required to be preheated to a certain temperature and then enters an incinerator for incineration. The preheating of the combustion air needs the heating of high-temperature flue gas by a shell-and-tube gas-gas heat exchanger. For example: in a common waste acid regeneration (SAR for short), the cracking temperature of waste sulfuric acid needs to be controlled at 1050-1150 ℃. In order to increase the temperature of the hearth of the cracking furnace, reduce the consumption of fuel gas and increase SO 2 The concentration of the fuel gas is that preheated air with the temperature of 400-700 ℃ is mixed with the fuel gas and then enters a cracking furnace for burning. The combustion-supporting air is preheated to about 700 ℃ from the normal temperature, and the heat source is high-temperature flue gas at about 900 ℃.
The defects of the current heat exchanger are as follows: 1. the phenomena of tube plate cracking, tube plate and heat exchange tube connecting weld joint pulling cracking and the like easily occur to the tube plate at the high-temperature flue gas inlet, and finally the high-temperature stress fatigue failure of the equipment is caused, so that the requirement of long-term stable operation of the device cannot be met. 2. High-temperature flue gas walks the tube side, and the gas to be heated walks the shell side, and at the heat transfer in-process, "heat transfer blind spot" appears easily in the gas to be heated, and the gas to be heated is heated unevenly promptly, and the heating effect is poor.
Disclosure of Invention
The purpose of the invention is: the shell-and-tube high-temperature heat exchanger can avoid the problems of tube plate cracking, weld joint stretch cracking between the tube plate and the heat exchange tube and the like caused by high temperature.
In order to achieve the purpose, the invention adopts the technical scheme that: a shell and tube high temperature heat exchanger comprising: the smoke box is provided with a smoke inlet, the top of the smoke box is provided with a transition section cylinder, the outside of the transition section cylinder is provided with a cold side discharge cylinder with a cold side output port, the top of the transition section cylinder is provided with a shell side cylinder, the inside of the shell side cylinder is provided with a heat exchange tube bundle, the top of the shell side cylinder is provided with a chimney, the outside of the chimney is provided with a cold side input cylinder with a cold side input port, the top of the chimney extends out of the cold side input cylinder, the upper end and the lower end of the heat exchange tube bundle are respectively communicated with the cold side input cylinder and the cold side discharge cylinder, the bottom of the shell side cylinder is provided with a bottom tube plate, the bottom tube plate comprises a bottom first tube plate and a bottom second tube plate which are arranged at an upper interval and a lower interval, a gap between the bottom first tube plate and the bottom second tube plate forms an annular closed cooling cavity, the shell side cylinder extends downwards to form the outer side wall of the cooling cavity, and the inner side wall of the transition section cylinder extends upwards to form the inner side wall of the cooling cavity; the lower end of the heat exchange tube bundle sequentially penetrates through the bottom first tube plate, the cooling cavity and the bottom second tube plate, a plurality of cooling air inlets are formed in the outer side wall of the cooling cavity, a plurality of cooling air outlets are formed in the inner side wall of the cooling cavity, and the cooling air outlets are communicated with the transition section cylinder; the high-temperature flue gas enters the smoke box through the smoke inlet and is discharged from the chimney through the shell pass cylinder; gas to be heated passes through the cold side input cylinder and the heat exchange tube bundle through the cold side input port in sequence, and is discharged from the cold side output port of the cold side discharge cylinder; and cooling air continuously enters the cooling cavity from the cooling air inlet and then enters the transition section cylinder from the cooling air outlet.
Further, the shell-and-tube high-temperature heat exchanger is characterized in that a temperature detection element for detecting temperature is arranged on the first tube plate at the bottom, the temperature detection element feeds detected signals back to the PLC in real time, and the PLC adjusts the air intake of cooling air in the cooling air inlet according to the signals detected by the temperature detection element.
Furthermore, in the shell-and-tube high-temperature heat exchanger, a layer of tube plate refractory fiber felt is respectively arranged at the top of the bottom first tube plate and at the bottom of the bottom second tube plate.
Further, in the tube-shell type high-temperature heat exchanger, the lower end of each heat exchange tube in the heat exchange tube bundle is provided with a metal protective sleeve.
Furthermore, the shell-and-tube high-temperature heat exchanger further comprises a heat exchange tube bundle in the shell pass cylinder, the heat exchange tube bundle is annularly arranged around the shell pass cylinder, a plurality of baffle plates are arranged in the shell pass cylinder at intervals, each baffle plate is divided into a middle baffle plate and an outer side baffle plate, each middle baffle plate is arranged on the heat exchange tube bundle in a penetrating mode, each middle baffle plate is arranged in the heat exchange tube bundle and the shell pass cylinder on the inner side of the heat exchange tube bundle in a penetrating mode, each outer side baffle plate is also arranged on the heat exchange tube bundle in a penetrating mode, each outer side baffle plate is arranged between the heat exchange tube bundle and the inner wall of the shell pass cylinder in a penetrating mode, the middle baffle plate and the outer side baffle plates are arranged at intervals from bottom to top in sequence, and therefore smoke entering the shell pass cylinder can circulate between the inner side of the heat exchange tube bundle and the outer side of the heat exchange tube bundle.
Still further, in the shell-and-tube high-temperature heat exchanger, a layer of baffle refractory fiber felt is arranged at the bottom of a middle baffle located at the lowest position in the shell pass cylinder.
Still further, in the shell-and-tube high-temperature heat exchanger, the cooling air outlets are uniformly arranged around the cooling cavity at intervals in the circumferential direction.
Still further, in the shell-and-tube high-temperature heat exchanger, the cooling air inlets are uniformly arranged around the cooling cavity at intervals in the circumferential direction.
Still further, aforementioned shell-and-tube high temperature heat exchanger, wherein, all be provided with fire-resistant inner liner on the inner wall of smoke box and the inner wall of changeover portion barrel, fire-resistant inner liner upwards extends to cooling cavity inside wall position, and fire-resistant inner liner all stretches out in every cooling air outlet.
The invention has the advantages that: 1. the bottom tube plate adopts a double-tube-plate structure to form a cooling cavity, and cooling gas is continuously introduced into the cooling cavity, so that the heat exchange tube at the lower end part position of the shell Cheng Tongti and the bottom tube plate are continuously cooled, and the problems of tube plate cracking, weld joint cracking, stress fatigue and the like at the connecting position of the heat exchange tube and the bottom tube plate under the stress action of a long-term high-temperature state can be effectively avoided, so that the long-term stable work of equipment is ensured, the service life of the heat exchanger is effectively prolonged, and the maintenance cost of the equipment is reduced. 2. In the heat exchange process, high-temperature flue gas flows through the shell pass, flue gas to be heated flows through the tube pass, the high-temperature flue gas is guided by the baffle plate to run in a circuitous mode, the running path of the high-temperature flue gas is effectively prolonged, the heat exchange tube bundle is transversely washed by the high-temperature flue gas, heat of the high-temperature flue gas is fully released, the flue gas to be heated is uniformly heated in the tube pass, and compared with a traditional heat exchanger in which the high-temperature flue gas flows through the tube pass and the flue gas to be heated flows through the shell pass, the heat exchange effect of the shell-and-tube type high-temperature heat exchanger is greatly improved.
Drawings
FIG. 1 is a schematic structural view of a shell-and-tube high temperature heat exchanger according to the present invention.
Fig. 2 is an enlarged schematic view of a portion a of fig. 1.
Fig. 3 is a schematic sectional structure view of B-B in fig. 1.
Detailed Description
The invention is described in further detail below with reference to the figures and preferred embodiments.
As shown in fig. 1, 2 and 3, the shell-and-tube high-temperature heat exchanger includes: the smoke box is provided with a smoke inlet 11, and the top of the smoke box 1 is provided with a transition section cylinder 2. In this embodiment, the top of the smoke box 1 is a cone-shaped smoke box 12 with a diameter gradually decreasing from bottom to top, and the transition section cylinder 2 is connected to the top of the cone-shaped smoke box 12. In order to improve the high temperature resistance and the anti-scouring capability of the inner walls of the smoke box 1 and the transition section cylinder 2, the inner walls of the smoke box 1 and the transition section cylinder 2 are provided with fire-resistant inner lining layers 10.
The transition section cylinder 2 is externally provided with a cold side discharge cylinder 3 with a cold side output port 31, the top of the transition section cylinder is provided with a shell pass cylinder 4, and the shell pass cylinder 4 is internally provided with a heat exchange tube bundle 5. The top of the shell-side cylinder 4 is provided with a chimney 6, and a cold-side input cylinder 7 with a cold-side input port 71 is arranged outside the chimney 6. The top of the chimney 6 extends out of the cold-side input cylinder 7. The upper and lower ends of the heat exchange tube bundle 5 are respectively communicated with the cold side input cylinder 7 and the cold side discharge cylinder 3.
In this embodiment, the bottom of the shell-side cylinder 4 is provided with a bottom tube plate 41, and the bottom tube plate 41 includes a bottom first tube plate 411 and a bottom second tube plate 412 which are arranged at an interval up and down. The top of the bottom first tube sheet 411 and the bottom of the bottom second tube sheet 412 are respectively provided with a layer of tube sheet refractory fiber felt 413. The gap between the bottom first tube sheet 411 and the bottom second tube sheet 412 forms an annular closed cooling cavity 40. The shell side cylinder 4 extends downwards to form the outer side wall of the cooling cavity 40, and the inner side wall of the transition section cylinder 2 extends upwards to form the inner side wall of the cooling cavity 40.
The lower end of the heat exchange tube bundle 5 sequentially penetrates through a bottom first tube plate 411, a cooling cavity 40 and a bottom second tube plate 412, a cooling air inlet 401 is arranged on the outer side wall of the cooling cavity 40, a cooling air outlet 402 is arranged on the inner side wall of the cooling cavity 40, and the cooling air outlet 402 is communicated with the transition section cylinder 2. In order to improve the cooling effect and ensure uniform temperature in the cooling cavity 40, the number of the cooling air outlets 402 is four, and the number of the cooling air inlets 401 is twelve, wherein the cooling air outlets 402 are uniformly spaced around the circumference of the cooling cavity 40. In this embodiment, be provided with the temperature detection element that is used for detecting the temperature on the first tube sheet 4 in bottom, the temperature detection element sends the signal that detects back to the PLC controller in real time, and the PLC controller adjusts the air inlet volume of the cooling air in the cooling air import according to the signal that the temperature detection element detected.
The refractory lining layer 10 extends upwards to the inner side wall of the cooling cavity 40, the cooling air outlet 402 extends out of the refractory lining layer 10, and the refractory lining layer 10 plays an effective protection role in the cooling air outlet 402. In order to protect the heat exchange tubes, the lower end of each heat exchange tube in the heat exchange tube bundle 5 is provided with a metal protective sleeve 51.
The heat exchange tube bundle 5 in the shell pass cylinder 4 is annularly arranged around the shell pass cylinder 4, a plurality of baffle plates are arranged in the shell pass cylinder 4 at intervals, each baffle plate is divided into a middle baffle plate 43 and an outer side baffle plate 44, the middle baffle plate 43 is fixedly arranged on the heat exchange tube bundle 5 in a penetrating manner and is blocked in the heat exchange tube bundle 5 and the shell pass cylinder 4 at the inner side of the heat exchange tube bundle 5, the outer side baffle plates 44 are also fixedly arranged on the heat exchange tube bundle 5 in a penetrating manner, the outer side baffle plates 44 are blocked in the heat exchange tube bundle 5 and between the heat exchange tube bundle 5 and the inner wall of the shell pass cylinder 4, the middle baffle plates 43 and the outer side baffle plates 44 are sequentially arranged at intervals from bottom to top, and therefore flue gas entering the shell pass cylinder 4 can be in a circuitous mode between the inner side of the heat exchange tube bundle 5 and the outer side of the heat exchange tube bundle 5. Because the temperature of the lower end part of the shell-side cylinder 4 is very high, in this embodiment, a layer of baffle refractory fiber felt 4311 is arranged at the bottom of the middle baffle 431 at the lowest position in the shell-side cylinder 4, which can effectively protect the middle baffle 431 at the lowest position. The arrangement of the middle baffle plate 43 and the outer baffle plate 44 not only effectively prolongs the running path of the high-temperature flue gas, but also enables the high-temperature flue gas to transversely wash the tube bundle 5 back and forth, thereby greatly improving the heat exchange effect.
The working principle is as follows: the high-temperature flue gas enters the smoke box 1 from the smoke inlet 11 and then enters the shell-side cylinder 4 from the transition section cylinder 2. Guided by the intermediate baffle 43 and the outer baffle 44, the high temperature flue gas travels upward and detours between the inside of the heat exchange tube bundle 5 and the outside of the heat exchange tube bundle 5, thereby transferring heat to the gas in the heat exchange tube bundle 5. The flue gas at the top of the shell pass cylinder 4 is discharged outwards through a chimney 6.
The gas to be heated enters the cold-side input cylinder 7 from the cold-side input port 71 and then enters the heat exchange tube bundle 5, and the gas to be heated is heated after absorbing the heat transferred by the high-temperature flue gas in the heat exchange tube bundle 5. The heated gas enters the cold-side discharge cylinder 3 and is then output from the cold-side output port 31.
In the heat exchange process of the gas, the cooling air continuously enters the cooling cavity 40 from the cooling air inlet 401, so that the position of the bottom tube plate 41 is continuously cooled. The gas in the cooling cavity 40 enters the shell-side cylinder 4. Because the bottom first tube plate 411 is provided with a temperature detection element for detecting temperature, the temperature detection element feeds back a detected signal to the PLC controller in real time, and the PLC controller adjusts the air intake of the cooling air in the cooling air inlet 401 according to the signal detected by the temperature detection element. Specifically, when the temperature detecting element feeds back the detected signal to the PLC controller, and the PLC controller determines that the temperature of the bottom first tube sheet 411 is relatively high, the PLC controller controls the increase of the intake of the cooling air in the cooling air inlet 401; when the PLC controller determines that the temperature of the bottom first tube sheet 411 is relatively low, the PLC controller controls the intake of the cooling air in the cooling air inlet 401 to decrease. The PLC controls the air volume of the cooling air in real time, so that the cooling effect can be ensured, and the working temperature of the bottom tube plate 41 is constant within a certain temperature range.
The invention has the advantages that: 1. the bottom tube plate 41 adopts a double-tube-plate structure to form a cooling cavity 40, and cooling gas is continuously introduced into the cooling cavity 40, so that the heat exchange tube at the end position of the shell pass cylinder 4 and the bottom tube plate 41 are continuously cooled, and the problems of tube plate cracking, weld joint cracking, stress fatigue and the like under the stress action of a long-term high-temperature state at the connecting position of the heat exchange tube and the bottom tube plate 41 can be effectively avoided, so that the long-term stable work of equipment is ensured, the service life of the heat exchanger is effectively prolonged, the maintenance cost of the equipment is reduced, and the safety of the heat exchanger is greatly improved. 2. The PLC controls the air volume of the cooling air in real time, so that the working temperature of the bottom tube plate 41 is constant within a certain temperature range, the cooling effect is ensured, and the energy consumption can be effectively saved. 3. In the heat exchange process, high-temperature flue gas sequentially passes through the flue box 1, the transition section cylinder 2 and the shell pass cylinder 4 and then is discharged from the chimney 6, flue gas to be heated is input into the cylinder 7 through the cold side and is discharged from the cold side discharging cylinder 3 through the heat exchange tube bundle 5, namely the high-temperature flue gas flows through the shell pass, the flue gas to be heated flows through the tube pass, the high-temperature flue gas is guided by the baffle plate to perform circuitous operation, the operation path of the high-temperature flue gas is effectively prolonged, and the high-temperature flue gas transversely scours the heat exchange tube bundle, so that the heat of the high-temperature flue gas is fully released, the flue gas to be heated is uniformly heated in the tube pass, and compared with the traditional heat exchanger in which the high-temperature flue gas flows through the tube pass and the flue gas to be heated flows through the shell pass, the heat exchange effect of the shell-tube high-temperature heat exchanger is greatly improved.
Claims (6)
1. A shell and tube high temperature heat exchanger comprising: be provided with the smoke box of taking into the mouth, the top of smoke box is provided with the changeover portion barrel, the changeover portion barrel is provided with the cold side of taking the cold side delivery outlet outward and discharges the barrel, the top of changeover portion barrel is provided with the shell side barrel, be provided with the heat exchanger tube bank in the shell side barrel, the top of shell side barrel is provided with the chimney, the chimney is provided with the cold side input barrel of taking the cold side input port outward, the cold side input barrel is stretched out at the top of chimney, on the heat exchanger tube bank, both ends are linked together with cold side input barrel and cold side discharge barrel respectively down, its characterized in that: the bottom of the shell side cylinder is provided with a bottom tube plate, the bottom tube plate comprises a bottom first tube plate and a bottom second tube plate which are arranged at intervals up and down, a gap between the bottom first tube plate and the bottom second tube plate forms an annular closed cooling cavity, the shell side cylinder extends downwards to form the outer side wall of the cooling cavity, and the inner side wall of the transition section cylinder extends upwards to form the inner side wall of the cooling cavity; the lower end of the heat exchange tube bundle sequentially penetrates through the bottom first tube plate, the cooling cavity and the bottom second tube plate, a plurality of cooling air inlets are formed in the outer side wall of the cooling cavity, a plurality of cooling air outlets are formed in the inner side wall of the cooling cavity, and the cooling air outlets are communicated with the transition section cylinder; the high-temperature flue gas enters the smoke box through the smoke inlet and then is discharged from the chimney through the shell pass cylinder; gas to be heated sequentially passes through the cold side input cylinder and the heat exchange tube bundle through the cold side input port and is then discharged from the cold side output port of the cold side discharge cylinder; cooling air continuously enters the cooling cavity from the cooling air inlet and then enters the transition section cylinder from the cooling air outlet; a temperature detection element for detecting temperature is arranged on the first tube plate at the bottom, the temperature detection element feeds detected signals back to the PLC in real time, and the PLC adjusts the air inlet amount of cooling air in the cooling air inlet according to the signals detected by the temperature detection element; the cooling air outlets are uniformly arranged at intervals around the circumference of the cooling cavity; all be provided with fire-resistant inner liner on the inner wall of smoke box and the inner wall of changeover portion barrel, fire-resistant inner liner upwards extends to cooling cavity inside wall position, and fire-resistant inner liner all stretches out in every cooling air outlet.
2. A shell and tube high temperature heat exchanger according to claim 1, wherein: and the top of the first tube plate at the bottom and the bottom of the second tube plate at the bottom are respectively provided with a layer of tube plate refractory fiber felt.
3. A shell and tube high temperature heat exchanger according to claim 1 or 2 wherein: the lower end of each heat exchange tube in the heat exchange tube bundle is provided with a metal protective sleeve.
4. A shell and tube high temperature heat exchanger according to claim 1 or 2, wherein: the heat exchange tube bundle in the shell pass cylinder body is annularly arranged around the shell pass cylinder body, a plurality of baffle plates are arranged in the shell pass cylinder body at intervals, each baffle plate is divided into a middle baffle plate and an outer side baffle plate, each middle baffle plate is arranged in the heat exchange tube bundle in a penetrating mode and fixed on the heat exchange tube bundle, each middle baffle plate is arranged in the heat exchange tube bundle and the shell pass cylinder body on the inner side of the heat exchange tube bundle in a penetrating mode, each outer side baffle plate is arranged on the heat exchange tube bundle in a penetrating mode and fixed between the heat exchange tube bundle and the inner wall of the shell pass cylinder body in a penetrating mode, the middle baffle plates and the outer side baffle plates are arranged at intervals from bottom to top in sequence, and therefore smoke entering the shell pass cylinder body can run in a circuitous mode between the inner side of the heat exchange tube bundle and the outer side of the heat exchange tube bundle.
5. A shell and tube high temperature heat exchanger according to claim 4, wherein: the bottom of a middle baffle plate positioned at the lowest position in the shell pass cylinder body is provided with a layer of baffle plate refractory fiber felt.
6. A shell and tube high temperature heat exchanger according to claim 1 or 2, wherein: the cooling air inlets are uniformly arranged around the circumference of the cooling cavity at intervals.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110533907.4A CN113218215B (en) | 2021-05-17 | 2021-05-17 | Shell-and-tube high-temperature heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110533907.4A CN113218215B (en) | 2021-05-17 | 2021-05-17 | Shell-and-tube high-temperature heat exchanger |
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| Publication Number | Publication Date |
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| CN113218215A CN113218215A (en) | 2021-08-06 |
| CN113218215B true CN113218215B (en) | 2023-02-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110533907.4A Active CN113218215B (en) | 2021-05-17 | 2021-05-17 | Shell-and-tube high-temperature heat exchanger |
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| CN (1) | CN113218215B (en) |
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| CH157175A (en) * | 1930-12-16 | 1932-09-15 | Westdeutscher Ind Ofenbau M B | Gas-heated burner. |
| CN103673682A (en) * | 2013-12-10 | 2014-03-26 | 山东蓝星清洗防腐公司 | Novel tower top circulation oil hot water heat exchanger |
| CN106767043A (en) * | 2017-01-12 | 2017-05-31 | 张家港市江南锅炉压力容器有限公司 | A kind of flue gas cooling device |
| CN207662236U (en) * | 2017-09-20 | 2018-07-27 | 北京澳柯清洁煤气工程技术有限公司 | There is sub-cooled to protect the shell-and-tube heat exchanger of the high warm tube plate of tube type heat exchangers side by side |
| CN209416106U (en) * | 2018-12-27 | 2019-09-20 | 南京昊扬化工装备有限公司 | A kind of Large Efficient heat exchanger |
| CN111059565A (en) * | 2019-11-22 | 2020-04-24 | 青岛德固特节能装备股份有限公司 | High-temperature air preheater for coal gas |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3999966B2 (en) * | 2001-08-10 | 2007-10-31 | 株式会社神戸製鋼所 | Shell and tube heat exchanger |
| CN103693627A (en) * | 2013-12-19 | 2014-04-02 | 中江能源回收(上海)有限公司 | High-temperature air preheater structure for sulfur acid preparation |
| CN110762552A (en) * | 2019-12-09 | 2020-02-07 | 青岛德固特节能装备股份有限公司 | Double-tube-plate cooling air piping system of high-temperature air preheater |
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2021
- 2021-05-17 CN CN202110533907.4A patent/CN113218215B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH157175A (en) * | 1930-12-16 | 1932-09-15 | Westdeutscher Ind Ofenbau M B | Gas-heated burner. |
| CN103673682A (en) * | 2013-12-10 | 2014-03-26 | 山东蓝星清洗防腐公司 | Novel tower top circulation oil hot water heat exchanger |
| CN106767043A (en) * | 2017-01-12 | 2017-05-31 | 张家港市江南锅炉压力容器有限公司 | A kind of flue gas cooling device |
| CN207662236U (en) * | 2017-09-20 | 2018-07-27 | 北京澳柯清洁煤气工程技术有限公司 | There is sub-cooled to protect the shell-and-tube heat exchanger of the high warm tube plate of tube type heat exchangers side by side |
| CN209416106U (en) * | 2018-12-27 | 2019-09-20 | 南京昊扬化工装备有限公司 | A kind of Large Efficient heat exchanger |
| CN111059565A (en) * | 2019-11-22 | 2020-04-24 | 青岛德固特节能装备股份有限公司 | High-temperature air preheater for coal gas |
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|---|---|
| CN113218215A (en) | 2021-08-06 |
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