CN207849348U - The low-pressure heater of the hydrophobic cooling section of hydrocone type built in a kind of band - Google Patents
The low-pressure heater of the hydrophobic cooling section of hydrocone type built in a kind of band Download PDFInfo
- Publication number
- CN207849348U CN207849348U CN201820250408.8U CN201820250408U CN207849348U CN 207849348 U CN207849348 U CN 207849348U CN 201820250408 U CN201820250408 U CN 201820250408U CN 207849348 U CN207849348 U CN 207849348U
- Authority
- CN
- China
- Prior art keywords
- cooling section
- tube sheet
- hydrophobic
- plate
- hydrocone type
- Prior art date
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Links
- 230000002209 hydrophobic effect Effects 0.000 title claims abstract description 60
- 238000001816 cooling Methods 0.000 title claims abstract description 39
- 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 title claims abstract description 30
- 241000274582 Pycnanthus angolensis Species 0.000 claims description 25
- 239000011087 paperboard Substances 0.000 claims description 25
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 17
- 239000011148 porous material Substances 0.000 claims description 7
- 238000010276 construction Methods 0.000 abstract description 7
- 239000000463 material Substances 0.000 abstract description 6
- 239000000203 mixture Substances 0.000 description 5
- 238000010438 heat treatment Methods 0.000 description 3
- 230000005494 condensation Effects 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 238000009998 heat setting Methods 0.000 description 1
- 230000001172 regenerating effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
Landscapes
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The low-pressure heater of the hydrophobic cooling section of hydrocone type built in a kind of band, it is related to heater context.The utility model solves existing external drain cooler there are draining system equipment that excessive, draining system is complicated, hydrophobic pipeline extends, pipeline arrangement workload increases, drain cooler and pipeline occupy a large amount of power plant's hall spaces, and then the problem of increase power plant construction cost；And the existing built-in hydrophobic cooling section of submerged there is a problem of with more than material and heat exchange efficiency is low.The hydroecium, tube sheet and housing cylinder of the utility model are arranged successively from left to right, the right end of hydroecium and one end of tube sheet are affixed, the left end of housing cylinder and the other end of tube sheet are affixed, and heater tube bank is located inside housing cylinder and is fixed on tube sheet, and the hydrophobic cooling section of hydrocone type built in heater.The utility model is used to improve the heat exchange efficiency of hydrophobic cooling section, reduces power plant construction cost.
Description
Technical field
The utility model is related to heater contexts, are specifically related to a kind of low-pressure heating of the hydrophobic cooling section of hydrocone type built in band
Device.
Background technology
Low-pressure feed heater is one of Important Auxiliary equipment equipment of power station heat regenerative system, and purposes is to use extracted steam from turbine
Heat-setting water and water supply reduce the heat loss of turbine discharge, to make steam thermal energy be fully used, improve generator
The group thermal efficiency.
Heater with condensation section is the basic pattern of power plant's feed-water heater.To further decrease heat consumption and making to dredge
Water security is successfully discharged into next stage low pressure heat exchanger, and some heaters also set up hydrophobic cooling section.It condenses and heats steam in section
Hydrophobic temperature is condensed into equal to corresponding saturation temperature under steam pressure, it can generally be higher by about 30 than feedwater inlet temperature
℃.The purpose that hydrophobic cooling section is arranged is, using the main water supply of this temperature difference heating, heat-economy about 0.06% to can be improved；It is another
Aspect drain temperature reduce can to avoid or mitigate drain water piping cavitation erosion, improve the safety of draining system.Hydrophobic cooling
Section is provided separately within outside heater, referred to as external drain cooler, and setting external drain cooler not only increases thin
The equipment of water system, and hydrophobic pipeline extension, pipeline arrangement work is made to increase, to increase power plant construction cost.It is existing
The built-in hydrophobic cooling section of submerged, hydrophobic cooling segment length is longer, substantially suitable with tube bank length, leads to hydrophobic cooling section material
It is more, and heat exchange efficiency is low.
In conclusion that there are draining system equipment is excessive, draining system is complicated, hydrophobic for existing external drain cooler
Pipeline extends, pipeline arrangement workload increases, drain cooler and pipeline occupy a large amount of power plant's hall spaces, and then increase electricity
The problem of factory's construction cost；And the existing built-in hydrophobic cooling section of submerged there is a problem of with more than material and heat exchange efficiency is low.
Utility model content
That there are draining system equipment is excessive purpose of the utility model is to solve existing external drain cooler,
Draining system is complicated, hydrophobic pipeline extends, pipeline arrangement workload increases, drain cooler and pipeline occupy a large amount of power plant's workshops
Space, and then the problem of increase power plant construction cost；And the existing built-in hydrophobic cooling section of submerged exists with more than material and changing
The low problem of the thermal efficiency, and then the low-pressure heater of the hydrophobic cooling section of hydrocone type built in a kind of band of offer.
The technical solution of the utility model is：
The low-pressure heater of the hydrophobic cooling section of hydrocone type built in a kind of band, it includes hydroecium, tube sheet, housing cylinder, heating
Device is restrained and hydrophobic cooling section, and hydroecium, tube sheet and housing cylinder are arranged successively from left to right, the right end of hydroecium and one end of tube sheet
Affixed, the left end of housing cylinder and the other end of tube sheet are affixed, and heater tube bank is located inside housing cylinder and is fixed in tube sheet
On, hydrophobic cooling section is arranged in housing cylinder close to the side of tube sheet.
Further, hydrophobic cooling section includes end plate, baffle plate, dredges cold section lid plate, boxboard and annular backup pad, dredges cold section
Cover board is arranged in the inside of housing cylinder, and the left and right ends of thin cold section lid plate are affixed with housing cylinder respectively, dredge cold section lid plate
Front end is affixed with tube sheet, dredges the affixed end plate in rear end of cold section lid plate, and boxboard is semicircle boxboard, and semicircle boxboard is mounted on thin cold
The lower part of section lid plate is respectively equipped with hydrophobic entrance and hydrophobic outlet on semicircle boxboard, and annular backup pad is sleeved on boxboard, ring
The inner circumferential of shape support plate and boxboard are affixed, and the periphery of annular backup pad and housing cylinder are affixed, tube sheet, end plate, dredge cold section lid plate,
Boxboard and annular backup pad form seal cavity, and baffle plate is equipped in the seal cavity.
Further, the pore size and tolerance of end plate are consistent with tube sheet.
Further, the quantity of baffle plate is multiple, and multiple baffle plates are staggered in the seal cavity.
Further, the thickness of end plate is not less than 50mm.
Further, hydrophobic cooling section is that hydrocone type dredges cold section.
The utility model has the following effects that compared with prior art：
1, the utility model dredges cold section using built-in hydrocone type, and hydrocone type is dredged cold section and is arranged inside housing cylinder, and outer
The formula drain cooler of setting compares, and effectively reduces the equipment in draining system, shortens the length of hydrophobic pipeline, saves
The arrangement space of power plant's workshop reduces arrangement and the design work of entire draining system, to reduce power plant construction cost.
2, traditional built-in submerged dredges cold section, and thin cold segment length is longer, substantially suitable with tube bank length, causes to dredge cold section
More with material, it is compact that the hydrocone type of the utility model dredges cold segment structure, less with material, reduces equipment cost；Hydrocone type is dredged cold
Section is located at the front end of housing cylinder, and condensed water, which enters after heat exchanger tube first to flow through hydrocone type and dredge cold section, enters back into condensing zone, therefore siphon
Formula is dredged cold section and is dredged compared in the of cold section with traditional submerged, has higher heat exchange efficiency, is conducive to promote and apply.
3, the pore size and tolerance of the end plate of the utility model are consistent with tube sheet, reduce end plate as possible and are restrained with heater
Heat exchange pipe outer wall between gap, by end plate pore and heater tube bank outer wall between moisture film seal, formed closed
Dredge cold-zone.The thickness of the end plate of the utility model is not less than 50mm, ensure that and forms water between end plate pore and heat exchange pipe outer wall
Film seals.
Description of the drawings
Fig. 1 is the vertical view of the utility model；
Fig. 2 is sectional views of the Fig. 1 at A-A；
Fig. 3 is the front view of the hydrophobic cooling section of the utility model；
Fig. 4 is the side view of the hydrophobic cooling section of the utility model.
Specific implementation mode
Specific implementation mode one：Illustrate present embodiment, siphon built in a kind of band of present embodiment in conjunction with Fig. 1 and Fig. 2
The low-pressure heater of the hydrophobic cooling section of formula, it includes hydroecium 1, tube sheet 2, housing cylinder 3, heater tube bank 4 and hydrophobic cooling section,
Hydroecium 1, tube sheet 2 and housing cylinder 3 are arranged successively from left to right, and one end of the right end and tube sheet 2 of hydroecium 1 is affixed, housing cylinder 3
Left end and tube sheet 2 the other end it is affixed, heater tube bank 4 is located at the inside of housing cylinder 3 and is fixed on tube sheet 2, hydrophobic cold
But section is arranged in housing cylinder 3 close to the side of tube sheet 2.
Specific implementation mode two：Illustrate that present embodiment, the hydrophobic cooling section of present embodiment include in conjunction with Fig. 3 and Fig. 4
End plate 5, dredges cold section lid plate 7, boxboard 8 and annular backup pad 9 at baffle plate 6, dredges cold section lid plate 7 and is arranged in housing cylinder 3
Portion, the left and right ends for dredging cold section lid plate 7 are affixed with housing cylinder 3 respectively, and front end and the tube sheet 2 for dredging cold section lid plate 7 are affixed, dredge cold
The affixed end plate 5 in rear end of section lid plate 7, boxboard 8 are semicircle boxboard, and semicircle boxboard is mounted on the lower part for dredging cold section lid plate 7, partly
Hydrophobic entrance 8-1 and hydrophobic outlet 8-2 are respectively equipped on round boxboard, annular backup pad is sleeved on boxboard 8, annular backup pad
Inner circumferential and boxboard 8 it is affixed, the periphery of annular backup pad and housing cylinder 3 are affixed, tube sheet 2, end plate 5, dredge cold section lid plate 7, case
Plate 8 and annular backup pad 9 form seal cavity, and baffle plate 6 is equipped in the seal cavity.So set, hydrocone type dredges cold section
It is arranged inside housing cylinder 3, hydrocone type dredges the cold section of front end for being located at housing cylinder 3, after condensed water enters heater tube bank 4,
It first flows through hydrocone type and dredges cold section, and full flow passes through, to improve the heat exchange efficiency of hydrophobic cooling section, the utility model profit
In popularization and application.Other compositions and connection relation are same as the specific embodiment one.
Specific implementation mode three：Illustrate present embodiment, the pore size of the end plate 5 of present embodiment in conjunction with Fig. 2 and Fig. 3
It is consistent with tolerance with tube sheet.So set, the gap between end plate 5 and the heat exchange pipe outer wall of heater tube bank 4 is reduced as possible, according to
Moisture film between end plate 5 and the heat exchange pipe outer wall of heater tube bank 4 seals, and forms closed thin cold-zone.Other compositions and company
It is the same as one or two specific embodiments to connect relationship.
Specific implementation mode four：Illustrate that present embodiment, the quantity of the baffle plate 6 of present embodiment are in conjunction with Fig. 3 and Fig. 4
Multiple, multiple baffle plates 6 are staggered in the seal cavity.So set, the hydrophobic hydrophobic entrance 8-1 streams through boxboard 8
Enter the thin cold-zone being made of end plate 5 and baffle plate 6, then through 6 snakelike flowing of baffle plate.After condensed water enters heater tube bank 4
First flow through hydrocone type and dredge cold section and enter back into condensing zone, therefore there is higher heat exchange efficiency, it is hydrophobic be fully cooled after, by boxboard 8
Hydrophobic outlet 8-2 outflow.Other compositions and connection relation are identical as specific implementation mode one, two or three.
Specific implementation mode five：Illustrate that present embodiment, the thickness of the end plate 5 of present embodiment be not small in conjunction with Fig. 2 and Fig. 3
In 50mm.So set, ensureing to form moisture film sealing between the pore of end plate 5 and the heat exchange pipe outer wall of heater tube bank 4.It is other
Composition and connection relation are identical as specific implementation mode one, two, three or four.
Specific implementation mode six：Embodiment is described with reference to Fig. 1, and the hydrophobic cooling section of present embodiment is dredged for hydrocone type
Cold section.So set, hydrophobic cooling section, which is hydrocone type, dredges cold section, it is hydrophobic enter by condensing zone and the pressure difference of thin cold-zone it is hydrophobic cold
But section.Other compositions and connection relation are identical as specific implementation mode one, two, three, four or five.
Operation principle：
The utility model includes hydroecium, tube sheet, housing cylinder and heater tube bank, and hydrocone type built in housing cylinder is dredged cold
Section, while reducing power plant construction cost, improves thin cold section of heat exchange efficiency, is conducive to promote and apply.Hydrocone type dredges cold section of packet
End plate, baffle plate, boxboard, thin cold section lid plate and support plate, the hydrophobic entrance that hydrocone type dredges cold section of bottom is included to be always positioned at normally
Water level is hereinafter, so as to form water seal.It is hydrophobic to enter thin cold-zone by condensing zone and the pressure difference of thin cold-zone, through baffle plate serpentine flow
Dynamic, condensed water, which enters after heat exchanger tube, first to be flowed through hydrocone type and dredges cold section, has a higher heat exchange efficiency, it is hydrophobic be fully cooled after, from
Hydrophobic outlet outflow.
Claims (6)
1. a kind of low-pressure heater of the hydrophobic cooling section of hydrocone type built in band, it includes hydroecium (1), tube sheet (2), housing cylinder
(3), heater tube bank (4) and hydrophobic cooling section, hydroecium (1), tube sheet (2) and housing cylinder (3) are arranged successively from left to right, water
The right end of room (1) and one end of tube sheet (2) are affixed, and the other end of the left end and tube sheet (2) of housing cylinder (3) is affixed, heater
Tube bank (4) is located at housing cylinder (3) inside and is fixed on tube sheet (2), it is characterised in that：Hydrophobic cooling section is arranged in shell cylinder
Close to the side of tube sheet (2) in body (3).
2. the low-pressure heater of the hydrophobic cooling section of hydrocone type built in a kind of band according to claim 1, it is characterised in that：It dredges
Water cooling section includes end plate (5), baffle plate (6), dredges cold section lid plate (7), boxboard (8) and annular backup pad (9), dredges cold section lid plate
(7) in the inside of housing cylinder (3), the left and right ends for dredging cold section lid plate (7) are affixed with housing cylinder (3) respectively for setting, dredge cold
The front end of section lid plate (7) and tube sheet (2) are affixed, dredge the affixed end plate in rear end (5) of cold section lid plate (7), and boxboard (8) is semicircle case
Plate, semicircle boxboard are mounted on the lower part for dredging cold section lid plate (7), and hydrophobic entrance (8-1) is respectively equipped on semicircle boxboard and is dredged
Water out (8-2), annular backup pad are sleeved on boxboard (8), and the inner circumferential and boxboard (8) of annular backup pad are affixed, annular brace
The periphery of plate and housing cylinder (3) are affixed, and tube sheet (2), dredges cold section lid plate (7), boxboard (8) and annular backup pad at end plate (5)
(9) seal cavity is formed, baffle plate (6) is equipped in the seal cavity.
3. the low-pressure heater of the hydrophobic cooling section of hydrocone type built in a kind of band according to claim 2, it is characterised in that：End
The pore size and tolerance of plate (5) are consistent with tube sheet.
4. the low-pressure heater of the hydrophobic cooling section of hydrocone type, feature exist built in a kind of band according to claim 2 or 3
In：The quantity of baffle plate (6) is multiple, and multiple baffle plates (6) are staggered in the seal cavity.
5. the low-pressure heater of the hydrophobic cooling section of hydrocone type, feature exist built in a kind of band according to claim 2 or 3
In：The thickness of end plate (5) is not less than 50mm.
6. the low-pressure heater of the hydrophobic cooling section of hydrocone type, feature exist built in a kind of band according to claim 1 or 2
In：Hydrophobic cooling section is that hydrocone type dredges cold section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820250408.8U CN207849348U (en) | 2018-02-11 | 2018-02-11 | The low-pressure heater of the hydrophobic cooling section of hydrocone type built in a kind of band |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820250408.8U CN207849348U (en) | 2018-02-11 | 2018-02-11 | The low-pressure heater of the hydrophobic cooling section of hydrocone type built in a kind of band |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207849348U true CN207849348U (en) | 2018-09-11 |
Family
ID=63409686
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820250408.8U Expired - Fee Related CN207849348U (en) | 2018-02-11 | 2018-02-11 | The low-pressure heater of the hydrophobic cooling section of hydrocone type built in a kind of band |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207849348U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109347262A (en) * | 2018-09-29 | 2019-02-15 | 东方电机控制设备有限公司 | A kind of anti-siphon method of Generator Stator Cooling water system |
-
2018
- 2018-02-11 CN CN201820250408.8U patent/CN207849348U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109347262A (en) * | 2018-09-29 | 2019-02-15 | 东方电机控制设备有限公司 | A kind of anti-siphon method of Generator Stator Cooling water system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180911 |