CN203848267U - Flexible thin tube plate horizontally placed and collecting no steam - Google Patents

Flexible thin tube plate horizontally placed and collecting no steam Download PDF

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Publication number
CN203848267U
CN203848267U CN201420102328.XU CN201420102328U CN203848267U CN 203848267 U CN203848267 U CN 203848267U CN 201420102328 U CN201420102328 U CN 201420102328U CN 203848267 U CN203848267 U CN 203848267U
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China
Prior art keywords
flexible thin
thin tube
barrel
tube sheet
methodology
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Application number
CN201420102328.XU
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Chinese (zh)
Inventor
张合生
安连想
余伟邦
沈文朋
张立燕
齐波
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Tianhua Institute of Chemical Machinery and Automation Co Ltd
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Tianhua Institute of Chemical Machinery and Automation Co Ltd
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Priority to CN201420102328.XU priority Critical patent/CN203848267U/en
Application granted granted Critical
Publication of CN203848267U publication Critical patent/CN203848267U/en
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Abstract

The utility model provides a flexible thin tube plate horizontally placed and collecting no steam. The flexible thin tube plate is characterized in that a barrel is disposed on the outer side of the flexible thin tube plate, the upper portion of the barrel is a straight barrel which is connected with a waste heat boiler tube box, at least two ascending tubes are externally connected to the straight barrel, steam-water mixture is guided into a header or steam pocket, the lower portion of the barrel is a reducing barrel, the diameter of the upper end of the reducing barrel is larger than that of the lower end of the reducing barrel, the reducing barrel is connected with a waste heat boiler shell pass barrel, a flat plate is disposed at the center of the flexible thin tube plate and provided with holes, the flat plate is connected with heat exchanging tubes, an raised arc is disposed between the flat plate and the barrel, and the connected edges of the arc and the barrel are located above the orifices of the ascending tubes. The flexible thin tube plate has the advantages that steam collecting is avoided, temperature difference stress of the tube plate can be reduced effectively, stress concentration at the edge of the tube plate can be reduced effectively, and the tube plate is especially suitable for vertical waste heat boilers.

Description

Horizontal positioned does not collect the Methodology for Flexible Thin Tube Sheet of vapour
Technical field
The utility model relates to the Methodology for Flexible Thin Tube Sheet that a kind of horizontal positioned (for vertical waste heat boiler) does not collect vapour.Particularly a kind of Methodology for Flexible Thin Tube Sheet that does not collect vapour in vertical waste heat boiler upper end horizontal positioned.
Background technology
Vertical fire-pipe formula waste heat boiler heat exchange efficiency is high, and is highly suitable under process gas condition that dust content is higher, but there are the following problems in current commercial Application:
1, tube sheet adopts traditional thick tube plate structure more, higher in process gas temperature, and institute's producing steam pressure, in the time that middle pressure is above, adopts the waste heat boiler of this structure can make the thermal (temperature difference) stress of tube sheet very high, easily causes tube sheet cracking to damage.
2, arrive cylindrical shell upper end in waste heat boiler shell-side cylinder lower end, steam content increases gradually, and water content reduces gradually.Near upper perforated plate place, often there is only having steam, and almost there is no the phenomenon of water, i.e. waste heat boiler upper end collection vapour phenomenon.Once occur collection vapour phenomenon, the heat exchange efficiency in this region will sharply decline, heat exchanger tube and upper pipes plate temperature sharply raise simultaneously, easily cause tube sheet corrupted and booster.
Above two problems had a strong impact on equipment so that whole system stability and reliable rows.
Summary of the invention
The purpose of this utility model is to provide a kind of horizontal positioned (for vertical waste heat boiler) not collect the Methodology for Flexible Thin Tube Sheet of vapour.
A kind of horizontal positioned does not collect the Methodology for Flexible Thin Tube Sheet of vapour, it is characterized in that Methodology for Flexible Thin Tube Sheet outside is for cylindrical shell, top cylindrical shell is straight section cylindrical shell, be connected with waste heat boiler bobbin carriage, on straight section cylindrical shell, be circumscribed with at least 2 tedges, steam water interface is imported to header or drum, bottom cylindrical shell is reducing cylindrical shell, its upper end diameter is greater than lower end diameter, is connected with waste heat boiler shell-side cylinder; Methodology for Flexible Thin Tube Sheet center is one flat plate, porose on flat board, joins with heat exchanger tube; Between flat board and cylindrical shell, be the circular arc of a projection, between circular arc portion and plate part and shell portion, be connected and be rounding off, the edge that circular arc portion and shell portion join is positioned at the mouth of pipe top of tedge.
Methodology for Flexible Thin Tube Sheet described in the utility model is a global facility, can make moulding with a solid forging; Also circular arc and shell portion can be made to moulding with a solid forging, plate part is with being welded to each other and making after board making moulding.
The diameter of plate part described in the utility model is than the round large 5~300mm of stringing, and its thickness is between 12~40mm, and its concrete size and thickness are determined according to actual conditions and stress analysis result.
Tedge is preferably disposed on dull and stereotyped top or dull and stereotyped below is no more than 100mm place.
The radius of the best protruding circular arc portion of circular arc portion of tube sheet described in the utility model is between 20~200mm; Shape also can be semi arch, partial arc or elliptic arc, and thickness is between 12~40mm, and its concrete shape and thickness are determined according to actual conditions and stress analysis result.
Tube sheet plate part described in the utility model and tube sheet semi arch part can produce certain strain, can partly compensate the thermal expansion difference between housing and heat exchanger tube, thereby play the effect of expansion joint.Compared with Fixed Tubesheet Structure, can effectively reduce the stress of tube sheet edge and concentrate.Simultaneously due to tube sheet very thin (compared with thick tube sheet), thereby make tube sheet in hot situation, the thermal (temperature difference) stress of through-thickness is less.
Adopt Methodology for Flexible Thin Tube Sheet of the present utility model, have and do not collect vapour, can effectively reduce the thermal (temperature difference) stress of tube sheet and the stress of tube sheet edge and concentrate, be specially adapted to vertical waste heat boiler.
Brief description of the drawings
Fig. 1 does not collect the Methodology for Flexible Thin Tube Sheet schematic diagram of vapour for applying a kind of horizontal positioned of the present utility model (for vertical waste heat boiler).
In figure: 1, waste heat boiler bobbin carriage 2, flat board 3, cylindrical shell 4, semi arch 5, tedge 6, heat exchanger tube 7, waste heat boiler shell-side cylinder.
Detailed description of the invention
Horizontal positioned as described in Fig. 1 does not collect the Methodology for Flexible Thin Tube Sheet of vapour, the shell portion of Methodology for Flexible Thin Tube Sheet, and top is straight section, bottom is reducer.Straight section cylindrical shell upper end is connected with waste heat boiler bobbin carriage, and lower end is connected with reducing cylindrical shell.On straight section cylindrical shell, be provided with 2 tedges, steam water interface is entered to header.Tedge is arranged on 100mm place, anomaly plate below.On flat board, be distributed with heat exchanger tube.Reducing cylindrical shell upper end diameter is greater than lower end diameter, and lower end is connected with waste heat boiler shell-side cylinder, and upper end is connected with straight section cylindrical shell.Reducing cylindrical shell ensures that heat exchanger tube has sufficient space between straight section cylinder inner surface, on the basis that meets intensity, ensures that the flow velocity of gas-vapor mix is no more than 3m/s.

Claims (7)

1. a horizontal positioned does not collect the Methodology for Flexible Thin Tube Sheet of vapour, it is characterized in that Methodology for Flexible Thin Tube Sheet outside is for cylindrical shell, top cylindrical shell is straight section cylindrical shell, be connected with waste heat boiler bobbin carriage, on straight section cylindrical shell, be circumscribed with at least 2 tedges, steam water interface is imported to header or drum, bottom cylindrical shell is reducing cylindrical shell, its upper end diameter is greater than lower end diameter, is connected with waste heat boiler shell-side cylinder; Methodology for Flexible Thin Tube Sheet center is one flat plate, porose on flat board, joins with heat exchanger tube; Between flat board and cylindrical shell, be the circular arc of a projection, between circular arc portion and plate part and shell portion, be connected and be rounding off, the edge that circular arc portion and shell portion join is positioned at the mouth of pipe top of tedge.
2. horizontal positioned according to claim 1 does not collect the Methodology for Flexible Thin Tube Sheet of vapour, it is characterized in that: the diameter of plate part is than the round large 5~300mm of stringing.
3. horizontal positioned according to claim 1 does not collect the Methodology for Flexible Thin Tube Sheet of vapour, it is characterized in that: the thickness of plate part is 12~40mm.
4. horizontal positioned according to claim 1 does not collect the Methodology for Flexible Thin Tube Sheet of vapour, it is characterized in that: circular arc portion be shaped as semi arch, partial arc or elliptic arc.
5. horizontal positioned according to claim 4 does not collect the Methodology for Flexible Thin Tube Sheet of vapour, it is characterized in that: the radius of semi arch part is 20~200mm.
6. horizontal positioned according to claim 5 does not collect the Methodology for Flexible Thin Tube Sheet of vapour, it is characterized in that: the thickness of semi arch part is 12~40mm.
7. horizontal positioned according to claim 1 does not collect the Methodology for Flexible Thin Tube Sheet of vapour, it is characterized in that: tedge is arranged on plate part top or plate part below is no more than 100mm place.
CN201420102328.XU 2014-03-07 2014-03-07 Flexible thin tube plate horizontally placed and collecting no steam Active CN203848267U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420102328.XU CN203848267U (en) 2014-03-07 2014-03-07 Flexible thin tube plate horizontally placed and collecting no steam

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420102328.XU CN203848267U (en) 2014-03-07 2014-03-07 Flexible thin tube plate horizontally placed and collecting no steam

Publications (1)

Publication Number Publication Date
CN203848267U true CN203848267U (en) 2014-09-24

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Family Applications (1)

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CN201420102328.XU Active CN203848267U (en) 2014-03-07 2014-03-07 Flexible thin tube plate horizontally placed and collecting no steam

Country Status (1)

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CN (1) CN203848267U (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107062176A (en) * 2017-04-22 2017-08-18 天华化工机械及自动化研究设计院有限公司 Overheat of steaming Integral vertical thin tubesheet waste heat recovery plant
CN107115827A (en) * 2016-02-25 2017-09-01 亚申科技研发中心(上海)有限公司 A kind of calandria type fixed bed reactor
CN112539403A (en) * 2020-12-04 2021-03-23 苏州海陆重工股份有限公司 Fire tube type evaporator for recovering flue gas waste heat

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107115827A (en) * 2016-02-25 2017-09-01 亚申科技研发中心(上海)有限公司 A kind of calandria type fixed bed reactor
CN107115827B (en) * 2016-02-25 2020-09-04 亚申科技(浙江)有限公司 Tube array type fixed bed reactor
CN107062176A (en) * 2017-04-22 2017-08-18 天华化工机械及自动化研究设计院有限公司 Overheat of steaming Integral vertical thin tubesheet waste heat recovery plant
CN112539403A (en) * 2020-12-04 2021-03-23 苏州海陆重工股份有限公司 Fire tube type evaporator for recovering flue gas waste heat
CN112539403B (en) * 2020-12-04 2022-02-01 苏州海陆重工股份有限公司 Fire tube type evaporator for recovering flue gas waste heat

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