CN103673701A - Phthalic anhydride gas cooler - Google Patents
Phthalic anhydride gas cooler Download PDFInfo
- Publication number
- CN103673701A CN103673701A CN201310731153.9A CN201310731153A CN103673701A CN 103673701 A CN103673701 A CN 103673701A CN 201310731153 A CN201310731153 A CN 201310731153A CN 103673701 A CN103673701 A CN 103673701A
- Authority
- CN
- China
- Prior art keywords
- heat pipe
- phthalic anhydride
- pipe
- steam
- heat
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Landscapes
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The invention discloses a phthalic anhydride gas cooler and aims at solving the technical problem of waste heat recovery and utilization of process gas in the existing phthalic anhydride production process and solving the technical problem that a common cooling device cannot completely meet the safe and stable phthalic anhydride production requirement due to the production specificity of the process. The technical scheme is that the phthalic anhydride gas cooler comprises a heat pipe evaporator and a steam-water separator connected with the heat pipe evaporator through an ascending pipe and a descending pipe, wherein the heat pipe evaporator comprises a casing, more than one heat pipe, an upper partition plate, a lower partition plate and a jacketed pipe. The upper partition plate and the lower partition plate are arranged in the casing and divide the casing into two independent inner cavities including a steam cavity and a gas cavity. The heat pipes are located in the casing and penetrate the steam cavity and the gas cavity simultaneously. The ascending pipe and the descending pipe are respectively connected with the heat pipe in the steam cavity.
Description
Technical field
The present invention relates to a kind of gas cooler, relate in particular to the technique cooling device of organic chemical industry's phthalic anhydride in the producing waste heat recovery apparatus of holding concurrently, be mainly used in the phthalic anhydride gas cooler in benzoic anhydride producing process.
Background technology
Catalytic oxidation in the production of organic chemical industry's phthalic anhydride produces a large amount of reaction heat, and in production technology, by setting up, cooling device is converted into steam by reaction heat or hot water is used.Traditional cooler is faced with water and leaks in phthalic anhydride process gas and phthalic anhydride process gas leakage two large problems in benzoic anhydride producing process, has serious potential safety hazard.
Summary of the invention
Technical problem to be solved by this invention is: for the heat recovery of the process gas in existing phthalic anhydride production process and due to the particularity of explained hereafter, common cooling device can not meet the technical problem of the requirement that the safety and stability of phthalic anhydride produces completely.
For solving the problems of the technologies described above, the technical scheme that the present invention takes is:
A phthalic anhydride gas cooler, comprises heat pipe evaporator and the steam-water separator being connected with heat pipe evaporator by tedge, down-comer;
Described heat pipe evaporator comprises housing, is no less than heat pipe, upper spacer, lower clapboard and the jacket pipe of one; Described upper spacer, lower clapboard are all arranged in housing, and upper spacer, lower clapboard be divided into two independently inner chambers by housing, are respectively steam chamber and air chamber; Described heat pipe is positioned at housing and runs through steam chamber and air chamber simultaneously; Described jacket pipe is contained in the outside of heat pipe; Described housing is provided with air inlet and the gas outlet being connected with air chamber; Described tedge, down-comer are connected with the heat pipe that is positioned at steam chamber respectively.
Phthalic anhydride gas cooler of the present invention, adopts triple protection that steam chamber and air chamber are isolated completely, can avoid completely because leak the accident causing.Triple protection is: every heat pipe is all placed in jacket pipe, is a heavily insulation blocking; By upper spacer, the heat pipe that is positioned at steam chamber is isolated, be double insulation blocking; By lower clapboard, the heat pipe that is positioned at air chamber is isolated, be triple insulation blockings.
Steam-water separator of the present invention is application and the steam-water separator of the art in prior art, and its concrete structure the present invention do not elaborate.
Heat pipe of the present invention is application and the heat pipe of the art in prior art, and its concrete structure the present invention do not elaborate.
The present invention also comprises on-Line Monitor Device, and described on-Line Monitor Device is fixed on housing.The present invention arranges on-Line Monitor Device and on-Line Monitor Device between upper spacer, lower clapboard on housing, and whether on-line monitoring cooler leaks in time; Can avoid completely causing the accident because leak.On-Line Monitor Device of the present invention is water-leakage alarm.Water-leakage alarm is prior art, and its concrete structure the present invention be not described in detail.
Air inlet of the present invention is arc air inlet; Gas outlet is arc gas outlet.Phthalic anhydride gas cooler of the present invention, described air inlet is arc air inlet; Gas outlet is arc gas outlet, gas pressure that can Nai Genggao and absorb certain swelling stress; Avoid the thermal shock of phthalic anhydride gas and the Leakage Gas that thermal stress causes.
The jacket pipe that is sleeved on the heat pipe outside that is positioned at steam chamber of the present invention is water leg pipe.The present invention adopts heat pipe phase-change heat-exchange technology, in steam chamber heat pipe be water leg structure, the heat pipe that dependence is positioned at air chamber absorbs external process gas heat, be delivered to the water of the heat pipe steam-water separator down-comer that is positioned at steam chamber simultaneously, thereby produce steam and import again steam-water separator by tedge, reciprocal successively.Utilize the isothermal principle of hot pipe technique to make the middle fixedly two free-extension of heat pipe, the leakage that the thermal stress that solution heat exchanger heat-exchanging tube produces because of thermal expansion causes simultaneously.
Water leg pipe of the present invention is water leg structure of the prior art, and its concrete structure the present invention do not elaborate.
Operation principle of the present invention:
Phthalic anhydride gas cooler of the present invention in use, packs heat transferring medium into being positioned at the gentle endoceliac heat pipe in steam chamber respectively; Soft water is sent in steam-water separator by outside feed pump, the heat transferring medium of the inside heat pipe in air chamber produces phase transformation after absorbing heat, heat is delivered to steam chamber, water in jacket pipe absorb be heated to form after the heat that heat-pipe medium transmission comes steam water interface by tedge deliver in steam-water separator, carry out carbonated drink separation after steam send outside, saturation water in steam-water separator is sent into heat pipe evaporator by down-comer after mixing with outside feedwater again and is heated, and back and forth forms successively Natural Circulation.Heat pipe evaporator is through upper spacer, lower clapboard isolation, and the air chamber that is positioned at downside is walked process gas, and the heat pipe that is positioned at the steam chamber water leg tubular construction of upside is walked carbonated drink.Two kinds of not directly contacts of heat transferring medium, but by heat pipe transferring heat, because there is the isolation of upper spacer, lower clapboard, even if the heat pipe in the heat pipe corrosion leakage of air chamber or steam chamber leaks, it is single heat pipe failure, and can not cause two media intercommunication, equipment still can normally to move, can not make system shutdown because of this equipment.
The present invention is compared with prior art: the present invention takes full advantage of the advantage of heat pipe itself, as high in heat transfer efficiency, hot fluid flow drag losses is little, hot fluid and cold fluid isolation etc., makes being heated and vaporizing and all completing outside process gas pipeline of water in heat pipe evaporator.Adopt the process gas temperature after phthalic anhydride gas cooler of the present invention to drop to 160 ℃ of left and right from approximately 450 ℃, by controlling the heat flow density on heat pipe cold hot-fluid side, control thermotube wall temperature, make as much as possible thermotube wall temperature all the time higher than dew-point temperature, thereby solve dew point corrosion problem.Heat pipe evaporator is connected with steam-water separator by tedge/down-comer, and pipe arrangement is flexible; Steam chamber and air chamber adopt triple isolation structures, the leakage of any side can not affect the operation of opposite side, guarantee continuous, the safe and reliable operation of a whole set of phthalic anhydride production system, thoroughly solved the potential safety hazard in phthalic anhydride technique, realize the safety and stability of organic chemical industry's phthalic anhydride technique and produce, for enterprise creates considerable economic benefit and social benefit.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Fig. 2 is the structural representation of heat pipe evaporator.
Wherein, 1, tedge, 2, heat pipe evaporator, 2-1, jacket pipe, 2-2, upper spacer, 2-3, on-Line Monitor Device, 2-4, lower clapboard, 2-5, heat pipe, 2-6, housing, 2-7, steam chamber, 2-8, air chamber, 3, air inlet, 4, steam-water separator, 5, down-comer, 6, gas outlet.
The specific embodiment
For content of the present invention is become apparent more, below in conjunction with accompanying drawing 1-Fig. 2 and the specific embodiment, be further described.
In order to make object of the present invention, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein, only in order to explain the present invention, is not intended to limit the present invention.
As shown in Figure 1, the present invention includes heat pipe evaporator 2 and steam-water separator 4.Heat pipe evaporator 2 is connected with down-comer interface with the tedge interface on steam-water separator 4 with down-comer 4 by tedge 1, forms Natural Circulation.
As shown in Figure 2; heat pipe evaporator 2 described in the present embodiment is divided into 2-8He top, lower gas chamber steam chamber 2-7 by upper spacer 2-2 and lower clapboard 2-4; and the heat pipe in the 2-7 of steam chamber adopts water leg pipe 2-1 structure; with this, form triple protection, air chamber 2-8 and steam chamber 2-7 are isolated completely.In addition, between upper spacer 2-2 and lower clapboard 2-4, on-Line Monitor Device 2-3 is housed, in time whether on-line monitoring phthalic anhydride cooler leaks, guarantee phthalic anhydride production system continuously, safety, reliability service
Phthalic anhydride gas cooler of the present invention utilizes heat pipe 2-5 as heat exchange element, and heat pipe evaporator is arranged parallel combination by heat-pipe elements by pipe and formed.Upper spacer 2-2, lower clapboard 2-4 are divided into air chamber 2-8 and steam chamber 2-7 by heat pipe evaporator 2, heat pipe 2-5 internal working medium in the 2-7 of steam chamber produces phase transformation after absorbing heat, heat is delivered to steam chamber 2-7, in water leg in the 2-7 of steam chamber, the water of pipe is heated to form steam water interface after absorbing the heat that heat-pipe medium transmission comes, by tedge 1 deliver in steam-water separator 4, carry out carbonated drink separation after steam send outside.Air chamber 2-8 and steam chamber 2-7 adopt triple isolation structures, and on the housing 2-6 between lower clapboard 2-4, online monitoring measure is set at upper spacer 2-2, whether on-line monitoring cooler leaks in time, the leakage of any side can not affect the operation of opposite side, guarantees continuous, the safe and reliable operation of a whole set of phthalic anhydride production system.
Below in conjunction with accompanying drawing 1, Fig. 2, the course of work of the present embodiment is further described:
The present invention is arranged in benzoic anhydride producing process gas pipeline, furnace gas enters the hot side of heat pipe 2-5 that is positioned at air chamber 2-8 in the rear transversal flow heat pipe evaporator 2 of air inlet 3 of arcuate structure, the hot side draught of heat pipe 2-5 is knocked off after process gases heat and by working medium in heat pipe 2-5, heat is passed to the jacket pipe 2-1 of the heat pipe 2-5 cold side that is arranged in steam chamber 2-7, and flow through after the heat exchange gas outlet 6 of arcuate structure of process gas is returned to production technology pipeline and entered subsequent production workshop section.The outer soft water of system enters steam-water separator 4 by pressurizing feedwater pump, after mixing with saturated vapor aqueous mixtures, by down-comer 5, enter the down-comer interface of heat pipe evaporator 2 in steam-water separator 4, then enter in the jacket pipe 2-1 of heat pipe, absorb the next heat of heat pipe transmission in chuck 2-1 after, produce steam water interface, by tedge 1, enter in steam-water separator 4, in steam-water separator 4, after carbonated drink separation, steam is sent outside, back and forth forms successively Natural Circulation.
Part that the present invention does not relate to all same as the prior art or employing prior art is realized.
Claims (6)
1. a phthalic anhydride gas cooler, is characterized in that, comprises heat pipe evaporator (2) and the steam-water separator (4) being connected with heat pipe evaporator (2) by tedge (1), down-comer (4);
Described heat pipe evaporator (2) comprises housing (2-6), is no less than heat pipe (2-5), upper spacer (2-2), lower clapboard (2-4) and the jacket pipe (2-1) of one; Described upper spacer (2-2), lower clapboard (2-4) are all arranged in housing (2-6), and upper spacer (2-2), lower clapboard (2-4) be divided into two independently inner chambers by housing (2-6), are respectively steam chamber (2-7) and air chamber (2-8); Described heat pipe (2-5) is positioned at housing (2-6) and runs through steam chamber (2-7) and air chamber (2-8) simultaneously; Described jacket pipe (2-1) is contained in the outside of heat pipe (2-5); Described housing (2-6) is provided with air inlet (3) and gas outlet (4) that are connected with air chamber (2-8); Described tedge (1), down-comer (4) are connected with the heat pipe (2-5) that is positioned at steam chamber (2-7) respectively.
2. phthalic anhydride gas cooler as claimed in claim 1, is characterized in that, also comprises on-Line Monitor Device (2-3), and described on-Line Monitor Device (2-3) is fixed on housing (2-6).
3. phthalic anhydride gas cooler as claimed in claim 2, is characterized in that, described on-Line Monitor Device (2-3) is water-leakage alarm.
4. phthalic anhydride gas cooler as claimed in claim 1, is characterized in that, described air inlet (3) is arc air inlet.
5. phthalic anhydride gas cooler as claimed in claim 1, is characterized in that, described gas outlet (4) are arc gas outlet.
6. phthalic anhydride gas cooler as claimed in claim 1, is characterized in that, described in to be sleeved on the outside jacket pipe (2-1) of heat pipe (2-5) that is positioned at steam chamber (2-7) be water leg pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310731153.9A CN103673701A (en) | 2013-12-26 | 2013-12-26 | Phthalic anhydride gas cooler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310731153.9A CN103673701A (en) | 2013-12-26 | 2013-12-26 | Phthalic anhydride gas cooler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103673701A true CN103673701A (en) | 2014-03-26 |
Family
ID=50311997
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310731153.9A Pending CN103673701A (en) | 2013-12-26 | 2013-12-26 | Phthalic anhydride gas cooler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103673701A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107631655A (en) * | 2017-10-18 | 2018-01-26 | 张少杰 | A kind of mine wellhead anti-freezing heater |
| CN110715569A (en) * | 2019-10-22 | 2020-01-21 | 航天科工哈尔滨风华有限公司 | Double-shell type jacket heat pipe exchanger for LNG (liquefied Natural gas) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2339431Y (en) * | 1998-07-09 | 1999-09-22 | 郑宏太 | Heating heat-exchanger for vehicles |
| CN2814303Y (en) * | 2005-06-30 | 2006-09-06 | 中国石化集团巴陵石油化工有限责任公司 | Heat tube heat exchanger |
| RU2355970C2 (en) * | 2007-02-26 | 2009-05-20 | Закрытое акционерное общество "Уральский турбинный завод" | Heat exchanger with heat u-like pipes |
| CN201582777U (en) * | 2009-12-30 | 2010-09-15 | 中国石油化工集团公司 | Heat pipe exhaust-heat boiler |
| CN102401592A (en) * | 2011-11-21 | 2012-04-04 | 昆明理工大学 | Power generation system for waste heat of medium and low temperature flue gas with cylinder organic medium evaporation |
| CN202902241U (en) * | 2012-11-15 | 2013-04-24 | 天津华能能源设备有限公司 | Zinc coated thermal treatment furnace heat recovery boiler |
| CN203657576U (en) * | 2013-12-26 | 2014-06-18 | 南京加诺能源设备有限公司 | Phthalic anhydride gas cooler |
-
2013
- 2013-12-26 CN CN201310731153.9A patent/CN103673701A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2339431Y (en) * | 1998-07-09 | 1999-09-22 | 郑宏太 | Heating heat-exchanger for vehicles |
| CN2814303Y (en) * | 2005-06-30 | 2006-09-06 | 中国石化集团巴陵石油化工有限责任公司 | Heat tube heat exchanger |
| RU2355970C2 (en) * | 2007-02-26 | 2009-05-20 | Закрытое акционерное общество "Уральский турбинный завод" | Heat exchanger with heat u-like pipes |
| CN201582777U (en) * | 2009-12-30 | 2010-09-15 | 中国石油化工集团公司 | Heat pipe exhaust-heat boiler |
| CN102401592A (en) * | 2011-11-21 | 2012-04-04 | 昆明理工大学 | Power generation system for waste heat of medium and low temperature flue gas with cylinder organic medium evaporation |
| CN202902241U (en) * | 2012-11-15 | 2013-04-24 | 天津华能能源设备有限公司 | Zinc coated thermal treatment furnace heat recovery boiler |
| CN203657576U (en) * | 2013-12-26 | 2014-06-18 | 南京加诺能源设备有限公司 | Phthalic anhydride gas cooler |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107631655A (en) * | 2017-10-18 | 2018-01-26 | 张少杰 | A kind of mine wellhead anti-freezing heater |
| CN110715569A (en) * | 2019-10-22 | 2020-01-21 | 航天科工哈尔滨风华有限公司 | Double-shell type jacket heat pipe exchanger for LNG (liquefied Natural gas) |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203394709U (en) | Waste heat conversion system | |
| CN102838996B (en) | Raw coke oven gas waste-heat utilization method and raw coke oven gas waste-heat utilization equipment | |
| CN101245971A (en) | Enclosed cavity type heat exchanger | |
| CN109945681B (en) | Direct contact combined type heat exchange system | |
| CN103185367A (en) | Heat pipe-type movable heating phase-change heat storage device | |
| CN201892458U (en) | Residual heat recovery device for super heat conduction pipe | |
| CN103512412B (en) | U-shaped heat pipe heat exchanging component and the U-shaped heat exchange of heat pipe integrated with electrostatic precipitator | |
| CN104197760A (en) | Pipeline type pulse heat pipe heat exchanger | |
| CN103673701A (en) | Phthalic anhydride gas cooler | |
| CN203657576U (en) | Phthalic anhydride gas cooler | |
| CN104390492A (en) | Horizontal type double phase change heat exchanger | |
| CN202119310U (en) | Heat exchange tube and waste heat recovery device with the same | |
| CN104457338A (en) | Heat exchanging method for horizontal type heat exchanger for steam cooling with high degree of superheat | |
| CN214936047U (en) | Hydrogen production device | |
| CN201600054U (en) | Heat exchange device with insert tubes inside | |
| CN209279736U (en) | A kind of double property fluid cooling devices | |
| CN103822395A (en) | Direct-fired lithium bromide absorbing typed cold and hot water unit for producing high temperature hot water | |
| CN103075870A (en) | Novel efficient steam heater | |
| CN202440305U (en) | Hot nitrogen replacement system suitable for CO conversion device | |
| CN102303848B (en) | Method for exchanging heat between high-temperature process gas and low-temperature process gas in acid production process | |
| CN205980875U (en) | Double -tube sheet type heat exchanger | |
| CN205709867U (en) | A kind of industrial sulphuric acid purifying plant | |
| CN204359169U (en) | A kind of horizontal pair of phase-change heat-exchanger | |
| CN218329415U (en) | Lithium bromide solution heat exchanger | |
| CN202072471U (en) | Heat exchange device for high-temperature process gases and low-temperature process gases in acid making process |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20140326 |