CN105114924A - Insertion pipe type annular flow steam generator - Google Patents
Insertion pipe type annular flow steam generator Download PDFInfo
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- CN105114924A CN105114924A CN201510591666.3A CN201510591666A CN105114924A CN 105114924 A CN105114924 A CN 105114924A CN 201510591666 A CN201510591666 A CN 201510591666A CN 105114924 A CN105114924 A CN 105114924A
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Abstract
The invention relates to an insertion pipe type annular flow steam generator, and mainly solves the problems of weak heat exchange effect and easy generation of gap corrosion at the inner side of a pipe plate hole in a traditional steam generator. A container is arranged in a gas-liquid separation chamber; a separation chamber is divided into a first separation cavity and a second separation cavity by the container; the lower part of the container is the first separation cavity, and the upper part is the second separation cavity; a secondary separation device is arranged in the second separation cavity; the upper part of the container is connected with a water inlet pipe, and the lower part is supported by a bracket; the bottom of the container is connected with insertion pipes; the insertion pipes are two-side communication pipes, and are corresponding to heat exchange pipes one to one; the upper ends are communicated with the container; and the lower ends are inserted into the heat exchange pipes. The insertion pipes are adopted to change the heat exchange pipes to an annular channel, so that an effect of strengthening boiled heat exchange is achieved, a vertical forced convection structure is realized, a heat exchange strengthening effect is achieved, and the problem of gap corrosion caused by evaporation and concentration of a pipe plate gap at a shell pass side is prevented.
Description
Technical field
The present invention relates to a kind of heat-energy recovering apparatus, be widely used in various petroleum chemical industry and the field such as environmental protection and waste heat recovery, be specifically related to a kind of inserting pipe-type annular flow steam generator.
Background technology
Under the historical background vigorously advocating energy-conserving and environment-protective, for we provide strong and powerful power to the innovation of energy-saving environmental protection device and research and development.
At present, the heat-energy recovering apparatus being applied to every profession and trade and the field such as environmental protection, waste heat recovery mostly is classical shell-and-tube heat exchanger and heat-pipe heat exchanger etc.
In horizontal pipe shell-type steam generator, tube side thermal medium and outside tube water generation heat transmit, and outside tube water heat absorption boiling, is phase-changed into steam, completes the object of energy recovery.When this type of steam generator, particularly tube side are austenitic stainless steel material, very easily there is crevice corrosion between shell side side pipe plate and heat exchanger tube and lost efficacy.
In vertical shell-and-tube steam generator, general shell side is thermal medium, tube side water heat absorption boiling, this type of evaporimeter effectively can solve the crevice corrosion problem between shell side side pipe plate and heat exchanger tube, but there will be because of pipe and the case material coefficient of expansion inconsistent and cause the problem destroyed, and can because of hot heat transfer fluid film coefficient reduce cause steam generator total heat transfer coefficient comparatively horizontal type structure be deteriorated.
Heat pipe evaporator utilizes the gasification of heat transfer medium and condensation to be fed water from high-temperature medium transmission by heat, makes aqueous phase become steam, thus completes the object of energy recovery.More and more applied because its heat transfer coefficient is high, but it is also by the restriction of heat transfer medium, the problems such as operating pressure is low, volume is large and maintenance is difficult.
Chinese patent: CN202813324U, discloses a kind of heat pipe evaporator; Chinese patent: CN2833346Y, disclose a kind of heat pipe type waste heat steam generator, these patents are all typical heat pipe evaporators, and the shortcoming had is usual also clearly: the gasification temperature by heat transfer medium limits, and the pressure producing steam is general lower.
Summary of the invention
In order to overcome the deficiency of background technology, the invention provides a kind of inserting pipe-type annular flow steam generator, utilizing unique inserting pipe-type structure to form circular passage and carrying out enhanced heat exchange efficiency; Meanwhile, because water cancels lower perforated plate to upper reaches in heat exchanger tube, the inconsistent problem thus elimination heat exchanger tube and casing metal expand; This structure also solves the problem of the crevice corrosion between shell side side pipe plate and heat exchanger tube.
The technical solution adopted in the present invention is: a kind of inserting pipe-type annular flow steam generator, comprise Heat Room and gas-liquid separation chamber, described Heat Room is provided with shell-side cylinder and shell-side head, and described gas-liquid separation chamber is provided with separation chamber's cylindrical shell and separation chamber's end socket; Described Heat Room is also provided with heat medium import and Crude product input, and described gas-liquid separation chamber is also provided with water inlet pipe and outlet pipe,
Described gas-liquid separation chamber is positioned at the top of Heat Room, and gas-liquid separation chamber top is provided with steam (vapor) outlet, is provided with tube sheet between this gas-liquid separation chamber and Heat Room, and described tube sheet is two room seal isolation;
Be provided with some heat exchanger tubes in described Heat Room, described heat exchanger tube is opened down on being and is closed structure, and upper end is communicated with gas-liquid separation chamber by tube sheet, and lower end is positioned at Heat Room;
Described gas-liquid separation indoor are provided with header, and separation chamber is divided into the first disengagement chamber and the second disengagement chamber by header, and header bottom is the first disengagement chamber, and top is the second disengagement chamber; Secondary separation device is provided with in the second described disengagement chamber; Described header top connects water inlet pipe, and bottom adopts support to support, and be connected with Inserting Tube bottom described header, described Inserting Tube is both sides communicating pipe, this Inserting Tube and heat exchanger tube quantity one_to_one corresponding, and upper end is communicated with header, and lower end is inserted in heat exchanger tube;
A nearly step, described Inserting Tube does not contact with pipe wall of heat exchange pipe, and bottom Inserting Tube bottom heat exchanger tube.
A nearly step, described secondary separation device is wire mesh demister, and described wire mesh demister is positioned at steam outlet.
A nearly step, described heat exchanger tube upper end and tube sheet adopt intensity to weld to stick on swollen syndeton.
A nearly step, be provided with deflection plate in described Heat Room.
The invention has the beneficial effects as follows: adopt Inserting Tube to make heat exchanger tube formation circular passage have the effect of enhanced boiling heat transfer, achieve the structure of vertical forced convertion, the effect of existing enhanced heat exchange, turn avoid the crevice corrosion problem that shell side side pipe plate gap evaporation and concentration causes; Another effect of the present invention is that heat exchanger tube only has one end to be welded on tube sheet, avoids because heat exchanger tube and casing metal expand the generation of the inconsistent problem caused.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Fig. 2 is Inserting Tube annular channel structural representation.
In figure 1, Heat Room; 11, shell-side cylinder; 12, shell-side head; 13, heat medium import; 14, Crude product input; 15, deflection plate; 2, gas-liquid separation chamber; 21, separation chamber's cylindrical shell; 22, separation chamber's end socket; 23, water inlet pipe; 24, outlet pipe; 25, steam (vapor) outlet; 26, the first disengagement chamber; 27, the second disengagement chamber; 28, support; 281, header; 282, Inserting Tube; 29, secondary separation device; 3, tube sheet; 31, heat exchanger tube.
Detailed description of the invention
Below in conjunction with accompanying drawing, embodiments of the present invention is further illustrated:
As shown in Figure 1 with Figure 2, a kind of inserting pipe-type annular flow steam generator, be divided into upper and lower two spaces, be respectively bottom Heat Room 1 and top gas-liquid separation chamber 2, described Heat Room 1 is provided with shell-side cylinder 11 and shell-side head 12, and described gas-liquid separation chamber 2 is provided with separation chamber's cylindrical shell 21 and separation chamber's end socket 22; Described Heat Room 1 is also provided with heat medium import 13 and Crude product input 14, and described gas-liquid separation chamber 2 is also provided with water inlet pipe 23 and outlet pipe 24,
Gas-liquid separation chamber 2 top is provided with steam (vapor) outlet 25, is provided with tube sheet 3 between this gas-liquid separation chamber 2 and Heat Room 1, and described tube sheet 3 is two room seal isolation;
Be provided with some heat exchanger tubes 31 in described Heat Room 1, described heat exchanger tube 31 is opened down on being and is closed structure, and upper end is communicated with gas-liquid separation chamber 2 by tube sheet 3, and lower end is positioned at Heat Room 1;
Described gas-liquid separation chamber 2 is divided between the first disengagement chamber 26 and the second disengagement chamber 27, first disengagement chamber 26 and the second disengagement chamber 27 and is provided with support 28, is provided with secondary separation device 29 in the second described disengagement chamber 26; Be provided with on the upside of described support 28 into water header 281, described water inlet header 281 is positioned on support 28, and header 281 top is communicated with water inlet pipe 23; Be provided with Inserting Tube 282 on the downside of described header 281, this Inserting Tube 282 is both sides communicating pipe, and Inserting Tube 282 and heat exchanger tube 31 quantity one_to_one corresponding; Described Inserting Tube 282 upper end is communicated with header 281, and lower end to insert in heat exchanger tube 31.
The course of work of this steam generator is as follows: heat medium flows into from heat medium import 13, and flow in Heat Room 1, carry out exchange heat with heat exchanger tube 31, medium flows out from Crude product input 14 again, processed make-up water enters header 281 by top water inlet pipe 23, Inserting Tube 282 is entered again by header 281 uniform divided flows, import in heat exchanger tube 31 by Inserting Tube 282, due to heat exchanger tube 31 on open down and close structure, therefore water annular channel in heat exchanger tube 31 is forced upwards flowing and is produced water vapour by ebuillition of heated, steam water interface flows out from heat exchanger tube 31 upper end, to enter in the first disengagement chamber 26, steam water interface carries out first separation in the first disengagement chamber 26, water vapour enters into the second disengagement chamber 27, water flows out from outlet pipe 24, and now water vapour carries out secondary separation by secondary separation device 29 again in the second disengagement chamber 27, finally obtain dry saturated steam, overflow from steam (vapor) outlet 25, finally achieve the recycling of heat.
Wherein it is to be noted that header is an adopted name in this area, the effect of header 281 to make many Inserting Tubes 282 point flowing water uniformly, thus keep water in every root heat exchanger tube 31 to be heated evenly, better can increase heat exchange efficiency, as long as therefore there is the device of above-mentioned functions all to belong to header.
Adopt Inserting Tube 282 heat exchanger tube 31 is formed effect that circular passage has enhanced boiling heat transfer, heat exchanger tube 31 leaves down the structure of closing and has the effect of water upwards forced convertion of can allowing on adopting, the effect of existing enhanced heat exchange, turn avoid the crevice corrosion problem that shell side side pipe plate gap evaporation and concentration causes; Another effect of the present invention is that heat exchanger tube 31 only has one end to be welded on tube sheet 3, avoids because heat exchanger tube 31 and casing metal expand the generation of the inconsistent problem caused.
Described Inserting Tube 282 does not contact with heat exchanger tube 31 tube wall, and bottom Inserting Tube 282 bottom heat exchanger tube 31.The beneficial effect of this priority scheme is: the closer to bottom, water annular channel in heat exchanger tube 31 forces the effect upwards flowed will be stronger, bottom the preferred Inserting Tube 282 of this programme with heat exchanger tube 31 bottom distance be 20-30mm, Inserting Tube 282 internal diameter is 10-25mm, heat exchanger tube 31 internal diameter is 20-38mm, those skilled in that art must know, this preferred version non-obvious, also non-common practise, strictly design through inventor, test the data drawn, its object is exactly in order to heat exchange efficiency is better.
Described secondary separation device is wire mesh demister, and described wire mesh demister is positioned at steam outlet.
Described heat exchanger tube 31 upper end and tube sheet 3 adopt intensity to weld to stick on swollen syndeton.This preferred version is to ensure the sealing property that heat exchanger tube 31 is connected with tube sheet 3, improves the bearing capacity of steam generator, produces the steam of more high pressure.
Deflection plate 15 is provided with in described Heat Room 1.The effect of this deflection plate 15 can either support fixing heat exchanger tube 31 to restraint, also can the outer heat-transfer effect of enhanced tube.Those skilled in that art must know, except adopting the structure of deflection plate 15, can also adopt rod baffle or the turbulent flow reinforced heat exchange structure of other pipe outer supports.
Every technical staff's notice: although the present invention describes according to above-mentioned detailed description of the invention, invention thought of the present invention is not limited in this invention, and the repacking of any utilization inventive concept, all will include in this patent scope of patent protection.
Claims (5)
1. an inserting pipe-type annular flow steam generator, comprises Heat Room and gas-liquid separation chamber, and described Heat Room is provided with shell-side cylinder and shell-side head, and described gas-liquid separation chamber is provided with separation chamber's cylindrical shell and separation chamber's end socket; Described Heat Room is also provided with heat medium import and Crude product input, and described gas-liquid separation chamber is also provided with water inlet pipe and outlet pipe, it is characterized in that:
Described gas-liquid separation chamber is positioned at the top of Heat Room, and gas-liquid separation chamber top is provided with steam (vapor) outlet, is provided with tube sheet between this gas-liquid separation chamber and Heat Room, and described tube sheet is two room seal isolation;
Be provided with some heat exchanger tubes in described Heat Room, described heat exchanger tube is opened down on being and is closed structure, and upper end is communicated with gas-liquid separation chamber by tube sheet, and lower end is positioned at Heat Room;
Described gas-liquid separation indoor are provided with header, and separation chamber is divided into the first disengagement chamber and the second disengagement chamber by header, and header bottom is the first disengagement chamber, and top is the second disengagement chamber; Secondary separation device is provided with in the second described disengagement chamber; Described header top connects water inlet pipe, and bottom adopts support to support, and be connected with Inserting Tube bottom described header, described Inserting Tube is both sides communicating pipe, this Inserting Tube and heat exchanger tube quantity one_to_one corresponding, and upper end is communicated with header, and lower end is inserted in heat exchanger tube.
2. a kind of inserting pipe-type annular flow steam generator according to claim 1, is characterized in that: described Inserting Tube does not contact with heat exchanger tube inwall, and bottom Inserting Tube bottom heat exchanger tube.
3. a kind of inserting pipe-type annular flow steam generator according to claim 1, is characterized in that: described secondary separation device is wire mesh demister, and described wire mesh demister is positioned at steam outlet.
4. a kind of inserting pipe-type annular flow steam generator according to claim 1, is characterized in that: described heat exchanger tube upper end and tube sheet adopt intensity to weld to stick on swollen syndeton.
5. a kind of inserting pipe-type annular flow steam generator according to claim 1, is characterized in that: be provided with deflection plate in described Heat Room.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510591666.3A CN105114924A (en) | 2015-09-16 | 2015-09-16 | Insertion pipe type annular flow steam generator |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510591666.3A CN105114924A (en) | 2015-09-16 | 2015-09-16 | Insertion pipe type annular flow steam generator |
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| CN105114924A true CN105114924A (en) | 2015-12-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510591666.3A Pending CN105114924A (en) | 2015-09-16 | 2015-09-16 | Insertion pipe type annular flow steam generator |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2614266C1 (en) * | 2016-02-10 | 2017-03-24 | Публичное акционерное общество криогенного машиностроения (ПАО "Криогенмаш") | Shell-and-tube heat exchanger |
| CN107416921A (en) * | 2017-09-12 | 2017-12-01 | 安徽省化工设计院 | A kind of evaporator |
| CN108800085A (en) * | 2018-08-01 | 2018-11-13 | 四川科新机电股份有限公司 | A kind of waste heat boiler of no tube sheet |
| CN108800096A (en) * | 2018-08-01 | 2018-11-13 | 四川科新机电股份有限公司 | A kind of waste heat boiler with fluidized gas distributor |
| CN108916843A (en) * | 2018-09-28 | 2018-11-30 | 扬中市诺贝电气有限公司 | A kind of integrated form is without vessel vapor generator |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0860673A2 (en) * | 1997-02-21 | 1998-08-26 | Haldor Topsoe A/S | Synthesis gas waste heat boiler |
| JP2003343803A (en) * | 2002-05-27 | 2003-12-03 | Nippon Chem Plant Consultant:Kk | Improvement in heat recovery device using evaporator |
| JP2005221181A (en) * | 2004-02-06 | 2005-08-18 | T Rad Co Ltd | Double-pipe heat exchanger |
| JP4035818B2 (en) * | 2002-11-22 | 2008-01-23 | 株式会社ティラド | Steam generator |
| JP2014185815A (en) * | 2013-03-25 | 2014-10-02 | Japan Atomic Energy Agency | Heat exchange device |
| CN205227254U (en) * | 2015-09-16 | 2016-05-11 | 江苏奥祺晨特种金属材料集团有限公司 | Insert tubular annular flow steam generator |
-
2015
- 2015-09-16 CN CN201510591666.3A patent/CN105114924A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0860673A2 (en) * | 1997-02-21 | 1998-08-26 | Haldor Topsoe A/S | Synthesis gas waste heat boiler |
| JP2003343803A (en) * | 2002-05-27 | 2003-12-03 | Nippon Chem Plant Consultant:Kk | Improvement in heat recovery device using evaporator |
| JP4035818B2 (en) * | 2002-11-22 | 2008-01-23 | 株式会社ティラド | Steam generator |
| JP2005221181A (en) * | 2004-02-06 | 2005-08-18 | T Rad Co Ltd | Double-pipe heat exchanger |
| JP2014185815A (en) * | 2013-03-25 | 2014-10-02 | Japan Atomic Energy Agency | Heat exchange device |
| CN205227254U (en) * | 2015-09-16 | 2016-05-11 | 江苏奥祺晨特种金属材料集团有限公司 | Insert tubular annular flow steam generator |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2614266C1 (en) * | 2016-02-10 | 2017-03-24 | Публичное акционерное общество криогенного машиностроения (ПАО "Криогенмаш") | Shell-and-tube heat exchanger |
| CN107416921A (en) * | 2017-09-12 | 2017-12-01 | 安徽省化工设计院 | A kind of evaporator |
| CN108800085A (en) * | 2018-08-01 | 2018-11-13 | 四川科新机电股份有限公司 | A kind of waste heat boiler of no tube sheet |
| CN108800096A (en) * | 2018-08-01 | 2018-11-13 | 四川科新机电股份有限公司 | A kind of waste heat boiler with fluidized gas distributor |
| CN108800096B (en) * | 2018-08-01 | 2024-04-16 | 四川科新机电股份有限公司 | Waste heat boiler with fluidization gas distributor |
| CN108800085B (en) * | 2018-08-01 | 2024-04-16 | 四川科新机电股份有限公司 | Waste heat boiler without pipe plate |
| CN108916843A (en) * | 2018-09-28 | 2018-11-30 | 扬中市诺贝电气有限公司 | A kind of integrated form is without vessel vapor generator |
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Application publication date: 20151202 |