CN106979708A - A kind of double tubesheet steam heater with anti-leak detection function - Google Patents

A kind of double tubesheet steam heater with anti-leak detection function Download PDF

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Publication number
CN106979708A
CN106979708A CN201610331537.5A CN201610331537A CN106979708A CN 106979708 A CN106979708 A CN 106979708A CN 201610331537 A CN201610331537 A CN 201610331537A CN 106979708 A CN106979708 A CN 106979708A
Authority
CN
China
Prior art keywords
tube
housing
nitrogen
detection function
leak detection
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
Application number
CN201610331537.5A
Other languages
Chinese (zh)
Inventor
张琴
莫志祥
谢飞
姚恒凤
黄永福
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ZHENJIANG FEIDA EQUIPMENT OF HYDROPOWER STATION CO Ltd
Original Assignee
ZHENJIANG FEIDA EQUIPMENT OF HYDROPOWER STATION CO Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by ZHENJIANG FEIDA EQUIPMENT OF HYDROPOWER STATION CO Ltd filed Critical ZHENJIANG FEIDA EQUIPMENT OF HYDROPOWER STATION CO Ltd
Priority to CN201610331537.5A priority Critical patent/CN106979708A/en
Publication of CN106979708A publication Critical patent/CN106979708A/en
Pending legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28HEAT EXCHANGE IN GENERAL
    • F28DHEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D7/00Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
    • F28D7/16Heat-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
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28HEAT EXCHANGE IN GENERAL
    • F28FDETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F11/00Arrangements for sealing leaky tubes and conduits
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28HEAT EXCHANGE IN GENERAL
    • F28FDETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F27/00Control arrangements or safety devices specially adapted for heat-exchange or heat-transfer apparatus
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28HEAT EXCHANGE IN GENERAL
    • F28FDETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F9/00Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28HEAT EXCHANGE IN GENERAL
    • F28FDETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F9/00Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
    • F28F9/007Auxiliary supports for elements
    • F28F9/013Auxiliary supports for elements for tubes or tube-assemblies
    • F28F9/0131Auxiliary supports for elements for tubes or tube-assemblies formed by plates
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28HEAT EXCHANGE IN GENERAL
    • F28FDETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F9/00Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
    • F28F9/22Arrangements for directing heat-exchange media into successive compartments, e.g. arrangements of guide plates

Abstract

The invention discloses a kind of double tubesheet steam heater with anti-leak detection function, including housing, tube bank, detection means and control device, the tube bank is arranged on enclosure interior, the side upper end of the housing is provided with nitrogen outlet, lower end is provided with nitrogen inlet, the top and bottom of the housing are respectively arranged with tube sheet, the tube sheet is divided into internal tube plate and outer tube plate, it is annular seal space between said inner tube plate and outer tube plate, the upper end of the tube bank is provided with steam inlet pipe through tube sheet, the lower end of the tube bank is provided with condensation-water drain through tube sheet, the detection means includes humidity sensor one, humidity sensor two and pressure transducer, the humidity sensor one is arranged on nitrogen inlet.The present invention can detect the humidity change of nitrogen in real time during being exchanged heat, so that it is guaranteed that whether heat exchange produces the situation of steam leakage when carrying out, and remind staff to handle in time, it is to avoid the generation of dangerous situation.

Description

A kind of double tubesheet steam heater with anti-leak detection function
Technical field
The present invention relates to a kind of double tubesheet steam heater with anti-leak detection function, it is adaptable to which steam is heated Field.
Background technology
In the prior art, there is a kind of shell-and-tube heat exchanger, its structure mainly includes columnar housing, housing Two ends, which are provided between tube sheet, tube sheet, is provided with some tubulations, and the mouth of pipe at tubulation two ends is set through tube sheet, housing Two ends are additionally provided with end cap, and housing is provided with first medium inlet and outlet, and the end cap of one end is situated between provided with second Matter import, the end cap of the other end is exported provided with second medium.When the device works, first medium walks shell side, Second medium walks tube side, and two media carries out heat exchange in housing, and a kind of medium temperature reduction is another Medium temperature is raised.It is disadvantageous in that:In the heat exchanger, expanded joint mode is used between tube sheet and tubulation Connection, in use, it is possible to answer internal leakage to cause the medium between tube side or shell side to mix, Some occasions, if the two media mixing in tube side and shell side can make inventory disposal or produce major accident.
The content of the invention
The technical problems to be solved by the invention are that the defect for overcoming prior art has anti-missing inspection there is provided one kind The double tubesheet steam heater of brake, it can detect the humidity of nitrogen in real time during being exchanged heat Change, so that it is guaranteed that whether heat exchange produces the situation of steam leakage when carrying out, and reminds staff to locate in time Reason, it is to avoid the generation of dangerous situation.
The present invention solves above-mentioned technical problem and adopted the technical scheme that:It is a kind of double with anti-leak detection function Tube sheet steam heater, including housing, tube bank, detection means and control device, the tube bank are arranged on shell Internal portion, the side upper end of the housing is provided with nitrogen outlet, and lower end is provided with nitrogen inlet, the shell The top and bottom of body are respectively arranged with tube sheet, and the tube sheet is divided into internal tube plate and outer tube plate, said inner tube plate It is annular seal space between outer tube plate, the upper end of the tube bank is provided with steam inlet pipe, the pipe through tube sheet The lower end of beam is provided with condensation-water drain through tube sheet, and the detection means includes humidity sensor one, humidity Sensor two and pressure transducer, the humidity sensor one are arranged on nitrogen inlet, the humidity sensor Two are arranged on nitrogen outlet, and the pressure transducer is arranged in annular seal space, the humidity sensor one it is defeated Go out the input of the output end of end, the output end of humidity sensor two and pressure transducer respectively with control device It is connected.
Further, in order to realize that what pressure in nitrogen Humidity Detection and tube sheet detected automatically controls, the control Device processed includes controller and control panel, be provided with the control panel be disposed with from top to bottom it is wet Display one, wetness display unit two, pressure display one, pressure display two and alarm are spent, it is described to have The input of wetness display unit one, the input of wetness display unit two, the input of pressure display one, pressure The strong input of display two and the input of alarm are connected with the output end of controller respectively, the control Device is PLC.
Further, in order to prevent fluid short and guiding gas flowing, in the housing close to nitrogen outlet and The side of nitrogen inlet is provided with dividing plate.
Further, in order to support tube bank, the centre of the tube bank is evenly arranged with multiple supporting plates, institute State supporting plate vertical with tube bank respectively.
Further, for the ease of the nitrogen material in housing is discharged, the upper end side of the housing is provided with Exhaust outlet one, the side of the housing lower end is provided with sewage draining exit one.
Further, for the ease of the nitrogen material for sealing endoluminal leak is discharged, on the annular seal space of the upside It is provided with exhaust outlet two, the annular seal space of the downside and is provided with sewage draining exit two.
Further, for the ease of support housing, the lower end of the housing is provided with leg.
Further, for the ease of mobile shell, the upper end side of the housing is provided with hanger.
Employ after above-mentioned technical proposal, the present invention has following beneficial effect:The present invention is due in nitrogen Porch is provided with humidity sensor one, and the humidity condition into nitrogen in housing can be detected in real time, due to Humidity sensor two is provided with nitrogen outlet, the humidity for the nitrogen discharged out of housing can be detected in real time Situation, and contrasted by the humidity condition of controller and porch, when the humidity condition of outlet is obvious Higher than porch humidity when, illustrate that tube bank in housing produces leakage, controller, which becomes, to control alarm to enter Row alarm, reminds staff to carry out overhaul plan in time, it is to avoid the generation of dangerous situation;Due to internal tube plate Pressure transducer is provided with annular seal space between outer tube plate, can detect that the pressure in annular seal space becomes in real time Change, when pressure substantially increases, illustrate that the connection between tube bank and tube sheet produces leakage, controller will be controlled Device alarm equipment alarm processed, is easy to the timely operating efficiency for being handled, improving heater, and practicality is good, Intelligence degree is high.
Brief description of the drawings
Fig. 1 is a kind of structure chart of double tubesheet steam heater with anti-leak detection function of the present invention;
Fig. 2 is a kind of top view of double tubesheet steam heater with anti-leak detection function of the present invention;
Fig. 3 is the enlarged drawing of part A in Fig. 1;
Fig. 4 is a kind of control panel of double tubesheet steam heater with anti-leak detection function of the present invention Structure chart;
Fig. 5 is a kind of control principle drawing of double tubesheet steam heater with anti-leak detection function of the present invention;
In figure:1. housing, 2. tube banks, 3. nitrogen outlets, 4. nitrogen inlets, 5. internal tube plates, 6. outer tubes Plate, 7. annular seal spaces, 8. steam inlet pipes, 9. condensation-water drains, 10. humidity sensors one, 11. humidity are passed Sensor two, 12. control panels, 13. wetness display units one, 14. wetness display units two, 15. pressure displays One, 16. pressure displays two, 17. alarms, 18. dividing plates, 19. supporting plates, 20. exhaust outlets one, 21. Sewage draining exit one, 22. exhaust outlets two, 23. sewage draining exits two, 24. legs, 25. hangers.
Embodiment
In order that present disclosure is easier to be clearly understood, below according to specific embodiment and with reference to attached Figure, the present invention is further detailed explanation.
As Figure 1-5, a kind of double tubesheet steam heater with anti-leak detection function, including housing 1, Tube bank 2, detection means and control device, the tube bank 2 are arranged on inside housing 1, the side of the housing 1 Face upper end is provided with nitrogen outlet 3, and lower end is provided with nitrogen inlet 4, the top and bottom point of the housing 1 Be not provided with tube sheet, the tube sheet is divided into internal tube plate 5 and outer tube plate 6, said inner tube plate 5 and outer tube plate 6 it Between be annular seal space 7, the upper end of the tube bank 2 is provided with steam inlet pipe 8 through tube sheet, described to restrain 2 Lower end is provided with condensation-water drain 9 through tube sheet, and the detection means includes humidity sensor 1, humidity Sensor 2 11 and pressure transducer, the humidity sensor 1 are arranged on nitrogen inlet 4, the humidity Sensor 2 11 is arranged on nitrogen outlet 3, and the pressure transducer is arranged in annular seal space 7, the humidity The output end difference of the output end of sensor 1, the output end of humidity sensor 2 11 and pressure transducer It is connected with the input of control device.
In order to realize that what pressure in nitrogen Humidity Detection and tube sheet detected automatically controls, the control device bag Include be provided with controller and control panel 12, the control panel 12 be disposed with from top to bottom humidity show Show device 1, wetness display unit 2 14, pressure display 1, pressure display 2 16 and alarm 17, The input for having wetness display unit 1, the input of wetness display unit 2 14, pressure display one The input of 15 input, the input of pressure display 2 16 and alarm 17 respectively with controller Output end is connected, and the controller is PLC.
In order to prevent in fluid short and guiding gas flowing, the housing 1 close to nitrogen outlet 3 and nitrogen The side of entrance 4 is provided with dividing plate 18.
In order to support tube bank, the centre of the tube bank 2 is evenly arranged with multiple supporting plates 19, the branch Fagging 19 is vertical with tube bank 2 respectively.
For the ease of the nitrogen material in housing 1 is discharged, the upper end side of the housing 1 is provided with exhaust Mouth 1, the side of the lower end of housing 1 is provided with sewage draining exit 1.
For the ease of the nitrogen material for sealing endoluminal leak is discharged, it is provided with the annular seal space 7 of the upside Sewage draining exit 2 23 is provided with exhaust outlet 2 22, the annular seal space 7 of the downside.
For the ease of support housing 1, the lower end of the housing 1 is provided with leg 24.
For the ease of mobile shell 1, the upper end side of the housing 1 is provided with hanger 25.
When being heated to nitrogen, steam enters in tube bank 1 from steam inlet pipe 8, and nitrogen is from nitrogen Gas entrance 4 enters in housing 1, and the heat transfer of steam is heated to nitrogen to nitrogen in housing 1, Steam is condensed into water and discharged from condensation-water drain 9, and the nitrogen after heating is discharged from nitrogen outlet 3, so that Reach the effect heated to nitrogen.During being heated, humidity sensor 1 and humidity sensor 2 11 detect the humidity condition of nitrogen at nitrogen inlet 4 and nitrogen outlet 3 in real time, and signal is passed into control Device, and shown respectively by wetness display unit 1 and wetness display unit 2 14, when nitrogen outlet 3 Locate the humidity of nitrogen apparently higher than during the humidity of nitrogen, controller will control alarm 17 at nitrogen inlet 4 Alarmed, remind staff to be handled in time.Pressure transducer simultaneously in annular seal space 7 is also real-time Detect the pressure change difference of pressure change in annular seal space 7, the annular seal space 7 of upside and the annular seal space 7 of downside Shown by pressure display 1 and pressure display 2 16, when pressure is improved, controller is same Sample can control alarm 17 to be alarmed, and remind staff to be overhauled in time, it is to avoid dangerous feelings occur Condition.
Compared with prior art, the present invention at nitrogen inlet due to being provided with humidity sensor one, Ke Yishi When detection enter housing in nitrogen humidity condition, due to being provided with humidity sensor two at nitrogen outlet, It can detect the humidity condition for the nitrogen discharged out of housing in real time, and pass through the wet of controller and porch Degree situation is contrasted, when outlet humidity condition apparently higher than porch humidity when, illustrate in housing Tube bank produces leakage, and controller, which becomes, to control alarm to be alarmed, and reminds staff to be overhauled in time Processing, it is to avoid the generation of dangerous situation;Due to being provided with pressure in the annular seal space between internal tube plate and outer tube plate Sensor, the pressure change in annular seal space can be detected in real time, when pressure substantially increases, illustrate tube bank and Connection between tube sheet produces leakage, controller will controller alarm equipment alarm, be easy to it is timely handled, The operating efficiency of heater is improved, practicality is good, intelligence degree is high.
Particular embodiments described above, pair present invention solves the technical problem that, technical scheme and beneficial effect Be further described, should be understood that the foregoing is only the present invention specific embodiment and , it is not intended to limit the invention, within the spirit and principles of the invention, any modification for being made, Equivalent substitution, improvement etc., should be included in the scope of the protection.

Claims (8)

1. a kind of double tubesheet steam heater with anti-leak detection function, it is characterised in that:Including housing, Tube bank, detection means and control device, the tube bank are arranged on enclosure interior, the side upper end of the housing Nitrogen outlet is provided with, lower end is provided with nitrogen inlet, and the top and bottom of the housing are respectively arranged with pipe Plate, the tube sheet is divided into internal tube plate and outer tube plate, is annular seal space between said inner tube plate and outer tube plate, described The upper end of tube bank is provided with steam inlet pipe through tube sheet, and the lower end of the tube bank is provided with condensation through tube sheet Water out, the detection means includes humidity sensor one, humidity sensor two and pressure transducer, described Humidity sensor one is arranged on nitrogen inlet, and the humidity sensor two is arranged on nitrogen outlet, the pressure Sensor is arranged in annular seal space, output end, the output end of humidity sensor two of the humidity sensor one It is connected respectively with the input of control device with the output end of pressure transducer.
2. a kind of double tubesheet steam heater with anti-leak detection function according to claim 1, its It is characterised by:The control device includes being provided with from upper on controller and control panel, the control panel Wetness display unit one, wetness display unit two, pressure display one, pressure display two are disposed with And alarm, the input for having wetness display unit one, the input of wetness display unit two, pressure are shown The output of the input of the input of device one, the input of pressure display two and alarm respectively with controller End is connected, and the controller is PLC.
3. a kind of double tubesheet steam heater with anti-leak detection function according to claim 1, its It is characterised by:Side in the housing close to nitrogen outlet and nitrogen inlet is provided with dividing plate.
4. a kind of double tubesheet steam heater with anti-leak detection function according to claim 1, its It is characterised by:The centre of the tube bank is evenly arranged with multiple supporting plates, and the supporting plate is hung down with tube bank respectively Directly.
5. a kind of double tubesheet steam heater with anti-leak detection function according to claim 1, its It is characterised by:The upper end side of the housing is provided with exhaust outlet one, and the side of the housing lower end is provided with Sewage draining exit one.
6. a kind of double tubesheet steam heater with anti-leak detection function according to claim 1, its It is characterised by:It is provided with exhaust outlet two, the annular seal space of the downside and is provided with the annular seal space of the upside Sewage draining exit two.
7. a kind of double tubesheet steam heater with anti-leak detection function stated according to claim 1, it is special Levy and be:The lower end of the housing is provided with leg.
8. a kind of double tubesheet steam heater with anti-leak detection function according to claim 1, its It is characterised by:The upper end side of the housing is provided with hanger.
CN201610331537.5A 2016-05-18 2016-05-18 A kind of double tubesheet steam heater with anti-leak detection function Pending CN106979708A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610331537.5A CN106979708A (en) 2016-05-18 2016-05-18 A kind of double tubesheet steam heater with anti-leak detection function

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610331537.5A CN106979708A (en) 2016-05-18 2016-05-18 A kind of double tubesheet steam heater with anti-leak detection function

Publications (1)

Publication Number Publication Date
CN106979708A true CN106979708A (en) 2017-07-25

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108387120A (en) * 2018-04-03 2018-08-10 无锡英罗唯森科技有限公司 Heat exchanger, heat exchanger assembly and flue gas recovery device
CN108981420A (en) * 2018-05-07 2018-12-11 上海海事大学 A kind of bilayer sleeve heat-exchanger rig suitable for hazardous fluids medium

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4972902A (en) * 1986-09-05 1990-11-27 Kabushiki Kaisha Toshiba Triple-wall tube heat exchanger
CN201440106U (en) * 2009-06-12 2010-04-21 上海宝钢工业检测公司 On-line leakage monitoring device of steam superheater for industrial furnace
CN101799349A (en) * 2010-04-07 2010-08-11 苏州宝骅机械技术有限公司 Device and method for detecting sealing property of sealing component
CN202255780U (en) * 2011-09-29 2012-05-30 江苏晋煤恒盛化工有限公司 Gas leak detection device
CN103698092A (en) * 2013-12-31 2014-04-02 苏州宝骅机械技术有限公司 Quantitative leakage detection device of pressure system
CN103712756A (en) * 2013-12-31 2014-04-09 苏州宝骅机械技术有限公司 Quantitative leakage detecting method for pressure system
CN204730707U (en) * 2015-05-07 2015-10-28 镇江飞利达电站设备有限公司 Double tubesheet steam heater

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4972902A (en) * 1986-09-05 1990-11-27 Kabushiki Kaisha Toshiba Triple-wall tube heat exchanger
CN201440106U (en) * 2009-06-12 2010-04-21 上海宝钢工业检测公司 On-line leakage monitoring device of steam superheater for industrial furnace
CN101799349A (en) * 2010-04-07 2010-08-11 苏州宝骅机械技术有限公司 Device and method for detecting sealing property of sealing component
CN202255780U (en) * 2011-09-29 2012-05-30 江苏晋煤恒盛化工有限公司 Gas leak detection device
CN103698092A (en) * 2013-12-31 2014-04-02 苏州宝骅机械技术有限公司 Quantitative leakage detection device of pressure system
CN103712756A (en) * 2013-12-31 2014-04-09 苏州宝骅机械技术有限公司 Quantitative leakage detecting method for pressure system
CN204730707U (en) * 2015-05-07 2015-10-28 镇江飞利达电站设备有限公司 Double tubesheet steam heater

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108387120A (en) * 2018-04-03 2018-08-10 无锡英罗唯森科技有限公司 Heat exchanger, heat exchanger assembly and flue gas recovery device
CN108981420A (en) * 2018-05-07 2018-12-11 上海海事大学 A kind of bilayer sleeve heat-exchanger rig suitable for hazardous fluids medium

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Application publication date: 20170725