CN205480934U - Horizontal high pressure feed water heater of deoxidization - Google Patents
Horizontal high pressure feed water heater of deoxidization Download PDFInfo
- Publication number
- CN205480934U CN205480934U CN201620263156.3U CN201620263156U CN205480934U CN 205480934 U CN205480934 U CN 205480934U CN 201620263156 U CN201620263156 U CN 201620263156U CN 205480934 U CN205480934 U CN 205480934U
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- China
- Prior art keywords
- section
- heat
- hydrophobic
- high pressure
- transfer pipe
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 48
- 230000002209 hydrophobic effect Effects 0.000 claims abstract description 58
- 238000006392 deoxygenation reaction Methods 0.000 claims description 24
- 238000005507 spraying Methods 0.000 claims description 20
- 230000003628 erosive effect Effects 0.000 claims description 17
- 238000009833 condensation Methods 0.000 claims description 16
- 230000005494 condensation Effects 0.000 claims description 16
- 230000008676 import Effects 0.000 claims description 7
- 238000009413 insulation Methods 0.000 claims description 7
- 238000003303 reheating Methods 0.000 claims description 6
- LLPOLZWFYMWNKH-CMKMFDCUSA-N hydrocodone Chemical compound C([C@H]1[C@H](N(CC[C@@]112)C)C3)CC(=O)[C@@H]1OC1=C2C3=CC=C1OC LLPOLZWFYMWNKH-CMKMFDCUSA-N 0.000 claims description 5
- 239000007921 spray Substances 0.000 claims description 5
- 238000010025 steaming Methods 0.000 claims description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract description 6
- 229910052760 oxygen Inorganic materials 0.000 abstract description 6
- 239000001301 oxygen Substances 0.000 abstract description 6
- 230000000694 effects Effects 0.000 description 9
- 238000010586 diagram Methods 0.000 description 4
- 230000002708 enhancing effect Effects 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000005728 strengthening Methods 0.000 description 2
- 230000008646 thermal stress Effects 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- 230000005514 two-phase flow Effects 0.000 description 2
- 238000010977 unit operation Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 206010000372 Accident at work Diseases 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007717 exclusion Effects 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000004781 supercooling Methods 0.000 description 1
- 238000012876 topography Methods 0.000 description 1
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- Physical Water Treatments (AREA)
Abstract
The utility model relates to a field high pressure feed water heater especially relates to a horizontal high pressure feed water heater of deoxidization, and it includes hydroecium, tube sheet, body and heat -transfer pipe, hydroecium fixed connection is equipped with branch journey board in one side of tube sheet in the hydroecium, the hydroecium includes that the portion of intaking is equipped with feed water inlet, goes out water portion and is equipped with the feedwater export by minute journey board divided portion of intaking and play water portion, and the hydroecium still is equipped with the manhole, body fixed connection includes superheat section at the opposite side of tube sheet, body, dredges the cold section and the section of condensing, and superheat section is located the one end that the body is close to the tube sheet with thin cold section side by side, and period number in the other end of body condenses, the heat -transfer pipe is the U -shaped, establishes and is connected in the body and with the tube sheet, and the heat -transfer pipe passes superheat section, dredges the cold section and the section of condensing, the utility model provides a heat -transfer pipe is enough protected and the horizontal high pressure feed water heater of deoxidization of the oxygen in hydrophobic can be separated.
Description
Technical field
This utility model relates to high-pressure heater field, particularly relates to a kind of deoxygenation horizontal high pressure heater.
Background technology
In power plant, in order to improve the heat-economy of unit operation, all using extraction cycle, high-pressure heater is then firing equipment important in extraction cycle.The input of high-pressure heater whether, ruuning situation quality, the impact on unit operation heat-economy is the biggest.
High-pressure heater can be divided into vertical and horizontal two big classes according to arrangement.Vertical high pressure heater cross-sectional area is little, thus the hydrophobic volume of unit height water level is little, and water lev el control is more difficult, and aerofluxus is insufficient, affects heat-transfer effect.Therefore, in power plant, Large-scale machine set commonly used deoxygenation horizontal high pressure heater.
High-pressure heater typically requires and receives the hydrophobic of higher level's high-pressure heater, in resuperheat system, also need to accept the hydrophobic of resuperheater and sweep vapour, in this case, on the one hand, the flash steam of the hydrophobic and resuperheat system of higher level's high-pressure heater can directly wash away the heat-transfer pipe corroding this grade of high-pressure heater, causes heat-transfer pipe to rupture, and causes industrial accident;On the other hand, this vapour, water two phase flow can be upset this grade of high-pressure heater and add vapours and condense hydrophobic proper flow, makes tube bank produce vibration and and reduce heat-transfer effect.
It addition, the oxygen in hydrophobic can corrode the equipment within high-pressure heater, need to carry out deoxygenation disposal to hydrophobic.
Utility model content
In order to solve the problems referred to above, this utility model provide a kind of can protect heat-transfer pipe and can separate hydrophobic in the deoxygenation horizontal high pressure heater of oxygen.
For achieving the above object, this utility model is by the following technical solutions:
A kind of deoxygenation horizontal high pressure heater, including hydroecium, tube sheet, body and heat-transfer pipe;Hydroecium is fixedly connected on the side of tube sheet, is provided with a point journey plate in hydroecium, and hydroecium includes water entering section and the outlet part separated by point journey plate, and water entering section is provided with feed-water inlet, and outlet part is provided with feedwater outlet, and hydroecium is additionally provided with manhole;Body is fixedly connected on the opposite side of tube sheet, and body includes superheat section, dredges cold section and condense section, superheat section and dredge cold section and be located side by side at body near tube sheet one end, condenses section and is positioned at the other end of body;Heat-transfer pipe is U-shaped, is located in body and is connected with tube sheet, and heat-transfer pipe is through superheat section, thin cold section and condensation section;Condensing section and be provided with hydrophobic import, hydrophobic import department is provided with hydrophobic anemostat, is provided with water spraying tray below hydrophobic anemostat, and water spraying tray is uniformly provided with spray apertures, is provided with reheating dish below water spraying tray, is provided with condensation erosion control baffle plate between water spraying tray and heat-transfer pipe.
Wherein, described hydrophobic anemostat is provided with jet pipe.
Wherein, multiple water spraying tray it is horizontally disposed with from top to bottom below described hydrophobic anemostat.
Wherein, described superheat section is provided with steam inlet, is provided with superheat section involucrum in superheat section, insulation board it is provided with between superheat section and tube sheet, being provided with overheated erosion control baffle plate in superheat section involucrum below steam inlet, interlocking in superheat section involucrum is provided with deflection plate, and deflection plate is provided with steaming hole.
Wherein, being provided with protection ring between described superheat section and condensation section, described protection ring is positioned at heat-transfer pipe periphery.
Wherein, in described thin cold section, it is provided with thin cold section of involucrum, is provided with end plate between cold section and condensation section dredging, end plate and thin cold section of involucrum formation hydrocone type entrance, interlock in dredging cold section of involucrum and be provided with dividing plate, dividing plate is provided with limbers, is additionally provided with hydrophobic outlet in dredging cold section.
Wherein, being additionally provided with exhaust tube in described body, exhaust tube is extended along heat-transfer pipe central axial direction.
Wherein, described exhaust tube is straight tube, and exhaust tube tube wall offers equally distributed aperture.
This utility model has the advantages that
1) superheat section is formed the space sealed by superheat section involucrum and insulation board, improves the flow velocity of steam, improves heat exchange, reduces heat transfer area;
2) superheat section arranges overheated erosion control baffle plate, is used for protecting heat-transfer pipe so that it is wash away erosion from high velocity vapor;
3) superheat section arranges deflection plate, plays enhancing heat-transfer pipe rigidity, reduces the effect of tube vibration, can improve the flow velocity of steam simultaneously, plays the effect strengthening heat transfer, and deflection plate is provided with steaming hole, reduces the pressure drag of superheat section, reduces vibrations;
4) superheat section arranges insulation board, prevents high temperature super heated steam direct impact erosion tube sheet, reduces the thermal stress of tube sheet;
5) between superheat section and condensation section, protection ring is set, when body must be dismantled, body can be cut herein, heat-transfer pipe will not be damaged;
6) dredge cold section and use hydrocone type structure, utilize siphon principle to introduce and condense the hydrophobic of section, hydrophobic thin cold section of water seal is got up;
7) dredging cold section and arrange dividing plate, play enhancing heat-transfer pipe rigidity, reduce the effect of tube vibration, dividing plate is provided with limbers, reduces the pressure drag dredging cold section, reduces vibrations;
8) exhaust tube is set, exhaust tube tube wall offers equally distributed aperture, in order to uniformly, effectively extract air out;
9) condensation erosion control baffle plate is set, is used for protecting heat-transfer pipe so that it is wash away erosion from high velocity vapor;
10) add thermal drain by reheating dish thus isolate hydrophobic in oxygen, reach the purpose of deoxygenation;
11) the most parallel multiple water spraying trays are set, while dispersing hydrophobic, hydrophobic and flash steam can be concurrently separated.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of deoxygenation horizontal high pressure heater of the present utility model;
Fig. 2 is the schematic diagram of the superheat section of deoxygenation horizontal high pressure heater of the present utility model;
Fig. 3 is the schematic diagram of thin cold section of deoxygenation horizontal high pressure heater of the present utility model;
Fig. 4 is the schematic diagram of the exhaust tube of deoxygenation horizontal high pressure heater of the present utility model;
Fig. 5 is the side schematic view of the body other end of deoxygenation horizontal high pressure heater of the present utility model;
Fig. 6 is the front schematic view of the body other end of deoxygenation horizontal high pressure heater of the present utility model.
Description of reference numerals:
null1-hydroecium、11-divides journey plate、12-water entering section、121-feed-water inlet、13-outlet part、131-feedwater outlet、14-manhole、2-tube sheet、3-body、300-cylinder、301-end socket、32-superheat section、321-steam inlet、322-overheated erosion control baffle plate、323-superheat section involucrum、324-insulation board、325-deflection plate、326-protection ring、33-dredges cold section、331-dredges cold section of involucrum、332-dividing plate、The hydrophobic outlet of 333-、334-end plate、335-hydrocone type entrance、34-condenses section、The hydrophobic import of 341-、35-exhaust tube、351-aperture、4-heat-transfer pipe、The hydrophobic anemostat of 431-、432-water spraying tray、433-reheating dish、434-condenses erosion control baffle plate、435-jet pipe、436-spray apertures.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, this utility model is described in further details:
As it is shown in figure 1, a kind of deoxygenation horizontal high pressure heater, including hydroecium 1, tube sheet 2, body 3 and heat-transfer pipe 4;
Hydroecium 1 is hemispherical, it is located at the side of tube sheet 2, hydroecium 1 and tube sheet 2 use and are welded and fixed connection, a point journey plate 11 it is provided with in hydroecium 1, hydroecium 1 is divided into water entering section 12 and outlet part 13 two parts by point journey plate 11, the water entering section 12 of hydroecium 1 is provided with feed-water inlet 121, and outlet part 13 is provided with feedwater outlet 131, and hydroecium 1 is additionally provided with the detachable manhole 14 of maintenance.
Body 3 is located at the opposite side of tube sheet 2, fixes with tube sheet 2 and is connected;Body 3 includes cylinder 300 and end socket 301, cylinder 300 and the fixing connection of end socket 301, body 3 includes superheat section 32, dredges cold section 33 and condense section 34, superheat section 32 is located side by side at body 3 one end near tube sheet 2 with dredging cold section 33, superheat section 32 is positioned on thin cold section 33, condense section 34 and be positioned at the other end of body 3, heat-transfer pipe 4 is U-shaped, it is located in body 3, being connected by the way of expanded joint by welding, expanded joint or welding with between tube sheet 2, heat-transfer pipe 4 is through superheat section 32, thin cold section 33 and condensation section 34.
As shown in Figure 2, superheat section 32 is provided with steam inlet 321, the superheat section involucrum 323 superheated steam and the steam condensing section 34 separated it is provided with in superheat section 32, insulation board 324 it is provided with between superheat section 32 and tube sheet 2, prevent high temperature super heated steam direct impact erosion tube sheet 2, reduce the thermal stress of tube sheet 2;Superheat section 32 is formed the space of sealing by superheat section involucrum 323 and insulation board 324, improves the flow velocity of steam, improves heat exchange, reduces heat transfer area;It is provided with overheated erosion control baffle plate 322 in superheat section involucrum 323 below steam inlet 321, is used for protecting heat-transfer pipe 4 so that it is wash away erosion from high velocity vapor;Interlock in superheat section involucrum 323 and be provided with deflection plate 325, play enhancing heat-transfer pipe 4 rigidity, reduce the effect of heat-transfer pipe 4 vibration, can improve the flow velocity of steam simultaneously, play the effect strengthening heat transfer, deflection plate 325 is provided with steaming hole, reduce the pressure drag of superheat section, reduce vibrations;
Being provided with protection ring 326 between superheat section 32 and condensation section 34, described protection ring 326 is positioned at heat-transfer pipe 4 periphery, when dismantling body 3, can cut body 3 herein, will not damage heat-transfer pipe 4;
As it is shown on figure 3, be provided with the thin cold section of involucrum 331 separated by steam that is hydrophobic and that condense section 34 in dredging cold section 33;Dredging cold section 33 and condensing and be provided with end plate 334 between section 34, end plate 334 forms hydrocone type entrance 335 with dredging cold section of involucrum 331, dredges cold section 33 and uses hydrocone type structure, utilizes siphon principle to introduce and condenses the hydrophobic of section 34, hydrophobic thin cold section of 33 water seals is got up;Interlocking in dredging cold section of involucrum 331 and be provided with dividing plate 332, play enhancing heat-transfer pipe 4 rigidity, reduce the effect of heat-transfer pipe 4 vibration, dividing plate 332 is provided with limbers, reduces the pressure drag of thin cold section 33, reduces vibrations;It is additionally provided with hydrophobic outlet 333 in dredging cold section 33;
The condensation water condensing section 34 is hydrophobic, arrange thin cold section 33, on the one hand the temperature difference heating feedwater of about 30 C that hydrophobic temperature exceeds is utilized than the feed temperature of feed-water inlet 121, reduce the exclusion of hydrophobic steam relatively low to next stage pressure, be conducive to improving backheat effect, on the other hand, make hydrophobic to be cooled to the supercool hydrophobic of certain degree of supercooling, make hydrophobic being difficult in pipeline vaporize, thus avoid or alleviate vapour, the harm to draining system of the water two-phase flow.
As shown in Figure 1, exhaust tube 35 it is additionally provided with in body 3, exhaust tube 35 utilization part adds vapours and carries in the externally discharged flash vessel of air, oxygen-eliminating device or condenser, preferably, exhaust tube 35 is located at heat-transfer pipe 4 center and extends to, from farthest heat-transfer pipe 4 position of feed-water inlet 121, so can more effectively bleed herein along heat-transfer pipe 4 central axial direction;As shown in Figure 4, exhaust tube 35 is straight tube, exhaust tube 35 tube wall offers equally distributed aperture 351, in order to uniformly, effectively extract air out.
As it is shown in figure 1, condense section 34 to be provided with hydrophobic import 341, as shown in Figure 5 and Figure 6, being provided with hydrophobic anemostat 431 at hydrophobic import 341, hydrophobic anemostat 431 is provided with some jet pipes 435, and alleviate hydrophobic and flash steam washes away the agent of erosion;It is provided with water spraying tray 432 below hydrophobic anemostat 431; spray apertures 436 it is uniformly provided with on water spraying tray 432; reheating dish 433 it is provided with below water spraying tray 432; for remove hydrophobic in oxygen; condensation erosion control baffle plate 434 it is provided with between water spraying tray 432 and heat-transfer pipe 4; it is used for protecting heat-transfer pipe 4 so that it is wash away erosion from high velocity vapor.
Hydrophobic flow to water spraying tray 432 through hydrophobic anemostat 431, spray apertures 436 on stream water spraying tray 432, it is dispersed into the current that many stocks are tiny, the heating of reheated dish 433, part hydrophobic formation high-temperature steam, high-temperature steam plus reheating dish 433 heating dual function under add thermal drain, separate hydrophobic in oxygen, reach the purpose of deoxygenation.
Further, being horizontally disposed with multiple water spraying tray 432 from top to bottom, such water spraying tray 432, while dispersing hydrophobic, can concurrently separate hydrophobic and flash steam, hydrophobic remittance high-pressure heater its bottom after deoxygenation after separation, adding in vapours of steam remittance high-pressure heater.
The operation principle of apparatus above is:
Feedwater is entered hydroecium 1 by feed-water inlet 121, by heat-transfer pipe 4, first passes through thin cold section 33, then through condensing section 34 and superheat section 32, after discharge by feedwater outlet 131 through hydroecium 1.
Add vapours and enter body 3 from steam inlet 321, first pass through superheat section 32, in the diabatic process of superheat section 32, be to heat feedwater with the sensible heat of superheated steam, steam is to carry out sensible heat transfer with heat-transfer pipe 4 tube wall in the way of heat convection, and this is the heat transfer between vapour, the single-phase steam of liquid;Again through condensing section 34, steam condensation becomes hydrophobic, in the diabatic process condensing section 34, is the Topography feedwater condensed with saturated vapor, is to have the heat transfer between the vapour of phase transformation, liquid;Afterwards through dredging cold section 33, finally discharged by hydrophobic outlet 333, dredge cold section 33 be with steam condensation after hydrophobic sensible heat heating feedwater, this is the heat transfer between liquid, the single-phase steam of liquid.
The foregoing is only detailed description of the invention of the present utility model; not thereby the scope of the claims of the present utility model is limited; every equivalent structure transformation utilizing this utility model description and accompanying drawing content to be made; or directly or indirectly it is used in other relevant technical fields, the most in like manner it is included in scope of patent protection of the present utility model.
Claims (8)
1. a deoxygenation horizontal high pressure heater, it is characterised in that: include hydroecium, tube sheet, body and heat-transfer pipe;Hydroecium is fixedly connected on the side of tube sheet, is provided with a point journey plate in hydroecium, and hydroecium includes water entering section and the outlet part separated by point journey plate, and water entering section is provided with feed-water inlet, and outlet part is provided with feedwater outlet, and hydroecium is additionally provided with manhole;Body is fixedly connected on the opposite side of tube sheet, and body includes superheat section, dredges cold section and condense section, and superheat section is located side by side at body one end near tube sheet with dredging cold section, condenses section and is positioned at the other end of body;Heat-transfer pipe is U-shaped, is located in body and is connected with tube sheet, and heat-transfer pipe is through superheat section, thin cold section and condensation section;Condensing section and be provided with hydrophobic import, hydrophobic import department is provided with hydrophobic anemostat, is provided with water spraying tray below hydrophobic anemostat, and water spraying tray is uniformly provided with spray apertures, is provided with reheating dish below water spraying tray, is provided with condensation erosion control baffle plate between water spraying tray and heat-transfer pipe.
Deoxygenation horizontal high pressure heater the most according to claim 1, it is characterised in that: described hydrophobic anemostat is provided with jet pipe.
Deoxygenation horizontal high pressure heater the most according to claim 2, it is characterised in that: it is horizontally disposed with multiple water spraying tray from top to bottom below described hydrophobic anemostat.
Deoxygenation horizontal high pressure heater the most according to claim 3, it is characterized in that: described superheat section is provided with steam inlet, superheat section involucrum it is provided with in superheat section, insulation board it is provided with between superheat section and tube sheet, overheated erosion control baffle plate it is provided with in superheat section involucrum below steam inlet, interlocking in superheat section involucrum and be provided with deflection plate, deflection plate is provided with steaming hole.
Deoxygenation horizontal high pressure heater the most according to claim 4, it is characterised in that: being provided with protection ring between described superheat section and condensation section, described protection ring is positioned at heat-transfer pipe periphery.
6. according to the deoxygenation horizontal high pressure heater described in claim 1 to 5 any claim, it is characterized in that: in described thin cold section, be provided with thin cold section of involucrum, it is provided with end plate between cold section and condensation section dredging, end plate forms hydrocone type entrance with dredging cold section of involucrum, interlock in dredging cold section of involucrum and be provided with dividing plate, dividing plate is provided with limbers, is additionally provided with hydrophobic outlet in dredging cold section.
Deoxygenation horizontal high pressure heater the most according to claim 6, it is characterised in that: being additionally provided with exhaust tube in described body, exhaust tube is extended along heat-transfer pipe central axial direction.
Deoxygenation horizontal high pressure heater the most according to claim 7, it is characterised in that: described exhaust tube is straight tube, and exhaust tube tube wall offers equally distributed aperture.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201620263156.3U CN205480934U (en) | 2016-03-31 | 2016-03-31 | Horizontal high pressure feed water heater of deoxidization |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201620263156.3U CN205480934U (en) | 2016-03-31 | 2016-03-31 | Horizontal high pressure feed water heater of deoxidization |
Publications (1)
Publication Number | Publication Date |
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CN205480934U true CN205480934U (en) | 2016-08-17 |
Family
ID=56645204
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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CN201620263156.3U Expired - Fee Related CN205480934U (en) | 2016-03-31 | 2016-03-31 | Horizontal high pressure feed water heater of deoxidization |
Country Status (1)
Country | Link |
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CN (1) | CN205480934U (en) |
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2016
- 2016-03-31 CN CN201620263156.3U patent/CN205480934U/en not_active Expired - Fee Related
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C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160817 Termination date: 20180331 |
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CF01 | Termination of patent right due to non-payment of annual fee |