WO2010090180A1 - 湿分分離加熱器 - Google Patents
湿分分離加熱器 Download PDFInfo
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- WO2010090180A1 WO2010090180A1 PCT/JP2010/051416 JP2010051416W WO2010090180A1 WO 2010090180 A1 WO2010090180 A1 WO 2010090180A1 JP 2010051416 W JP2010051416 W JP 2010051416W WO 2010090180 A1 WO2010090180 A1 WO 2010090180A1
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- Prior art keywords
- heater
- moisture
- tube bundle
- disposed
- heat transfer
- Prior art date
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B37/00—Component parts or details of steam boilers
- F22B37/02—Component parts or details of steam boilers applicable to more than one kind or type of steam boiler
- F22B37/06—Flue or fire tubes; Accessories therefor, e.g. fire-tube inserts
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
- F01K7/00—Steam engine plants characterised by the use of specific types of engine; Plants or engines characterised by their use of special steam systems, cycles or processes; Control means specially adapted for such systems, cycles or processes; Use of withdrawn or exhaust steam for feed-water heating
- F01K7/16—Steam engine plants characterised by the use of specific types of engine; Plants or engines characterised by their use of special steam systems, cycles or processes; Control means specially adapted for such systems, cycles or processes; Use of withdrawn or exhaust steam for feed-water heating the engines being only of turbine type
- F01K7/22—Steam engine plants characterised by the use of specific types of engine; Plants or engines characterised by their use of special steam systems, cycles or processes; Control means specially adapted for such systems, cycles or processes; Use of withdrawn or exhaust steam for feed-water heating the engines being only of turbine type the turbines having inter-stage steam heating
- F01K7/223—Inter-stage moisture separation
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B37/00—Component parts or details of steam boilers
- F22B37/02—Component parts or details of steam boilers applicable to more than one kind or type of steam boiler
- F22B37/26—Steam-separating arrangements
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B37/00—Component parts or details of steam boilers
- F22B37/02—Component parts or details of steam boilers applicable to more than one kind or type of steam boiler
- F22B37/26—Steam-separating arrangements
- F22B37/266—Separator reheaters
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22G—SUPERHEATING OF STEAM
- F22G3/00—Steam superheaters characterised by constructional features; Details of component parts thereof
- F22G3/006—Steam superheaters with heating tubes
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J15/00—Arrangements of devices for treating smoke or fumes
- F23J15/08—Arrangements of devices for treating smoke or fumes of heaters
Definitions
- the present invention relates to a moisture separation heater that removes moisture from steam with high wetness and heats the steam from which moisture has been removed to form superheated steam.
- a moisture separator / heater is provided between a high-pressure turbine and a low-pressure turbine in a nuclear power plant to remove moisture contained in exhaust (steam) of the high-pressure turbine.
- the steam from which moisture has been removed is heated to form superheated steam.
- the moisture separator / heater includes a horizontal cylindrical main body container sealed at both ends by end plates, a moisture separator for separating the moisture of the heated steam that has flowed into the main body container, and the heated steam as superheated steam. And a heater.
- a simplex-type moisture separation heater in which a bundle of tubes per one moisture separation heater is extended from one end plate of the main body container, or one moisture separation heater.
- Duplex-type moisture separation heaters have been applied in which tube bundles, which are heaters, are extended from both end plates of the main body container.
- FIG. 9 is a schematic diagram showing a conventional Simplex type moisture separation heater
- FIG. 10 is a schematic diagram showing a conventional Duplex type moisture separation heater
- FIG. 11 is a longitudinal sectional view showing a conventional moisture separation heater.
- a conventional Simplex type moisture separation heater 50 includes a horizontal main body 2 (with the axial direction as a horizontal direction), and a moisture separation housed in the main body 2. And a heater 3 and a heater 4.
- the inside of the main body container 2 is partitioned by a first partition plate 6 and a second partition plate 7.
- a header space 10 is defined between the first partition plate 6 and the end plate 8.
- a heating space 11 is defined between the first partition plate 6 and the second partition plate 7.
- a heated steam inlet 13 communicating with the heating space 11 is provided at the lower part of the main body container 2.
- a heated steam outlet 14 communicated with the heating space 11 is provided at the upper part of the main body container 2.
- the first partition plate 6 and the second partition plate 7 have an opening (not shown) through which the heater 4 is inserted.
- the moisture separator 3 is disposed in the lower part of the heating space 11.
- the moisture separator 3 separates the moisture of the heated steam flowing from the heated steam inlet 13 provided at the bottom of the main body container 2.
- the heater 4 includes a first stage heater 4a heated by high-pressure turbine bleed air and a second stage heater 4b heated by main steam sent from the nuclear reactor.
- the first stage heater 4a and the second stage heater 4b are respectively composed of heated steam headers 16a and 16b and a plurality of U-shaped heat transfer tubes 17a and 17b.
- the heated steam headers 16 a and 16 b are arranged in the header space 10.
- the straight pipe portions 18a and 18b of the U-shaped heat transfer tubes 17a and 17b are arranged in the heating space 11 and heat the steam to be heated.
- the bent tube portions 19a and 19b of the U-shaped heat transfer tubes 17a and 17b are disposed in a space 22 (outside space of the heating space 11) defined between the second partition plate 7 and the end plate 21.
- the first stage heater 4a and the second stage heater 4b include heating steam pipes 24a and 24b penetrating the end plate 8 of the main body container 2 for communication with the outside of the moisture separation heater 50, respectively.
- the vent pipes 25a and 25b are connected to the drain pipes 26a and 26b.
- a conventional Duplex type moisture separation heater 60 includes a horizontal cylindrical main body container 61, a moisture separator 3 and a heater 4 accommodated in the main body container 61. Prepare.
- the conventional Duplex type moisture separator / heater 60 is configured symmetrically with respect to a virtual center plane AA at the center position in the longitudinal direction of the main body container 61.
- the inside of the main body container 61 is partitioned by the first partition plate 6 and the second partition plate 7.
- a header space 10 is defined between the first partition plate 6 and the end plate 8.
- a heating space 11 is defined between the first partition plate 6 and the second partition plate 7.
- a central space 62 (outside space of the heating space 11) is defined between the second partition plates 7 facing each other.
- a heated steam inlet 13 communicating with the heating space 11 is provided at the lower part of the main body container 2.
- a heated steam outlet 14 communicated with the heating space 11 is provided at the upper part of the main body container 2.
- the first partition plate 6 and the second partition plate 7 have an opening (not shown) through which the heater 4 is inserted.
- the moisture separator 3 is disposed at the bottom of the heating space 11.
- the moisture separator 3 separates the moisture of the heated steam flowing from the heated steam inlet 13 provided at the bottom of the main body container 2.
- the heater 4 includes a first stage heater 4a heated by high-pressure turbine bleed air and a second stage heater 4b heated by main steam sent from the nuclear reactor.
- the first stage heater 4a and the second stage heater 4b are respectively composed of heated steam headers 16a and 16b and a plurality of U-shaped heat transfer tubes 17a and 17b.
- the heated steam headers 16 a and 16 b are arranged in the header space 10.
- the straight pipe portions 18a and 18b of the U-shaped heat transfer tubes 17a and 17b are arranged in the heating space 11 and heat the steam to be heated.
- the bent tube portions 19 a and 19 b of the U-shaped heat transfer tubes 17 a and 17 b are disposed in the central space 62.
- the first stage heater 4a and the second stage heater 4b include heating steam pipes 24a and 24b penetrating the end plate 8 of the main body container 2 for communication with the outside of the moisture separation heater 60, respectively.
- the vent pipes 25a and 25b are connected to the drain pipes 26a and 26b.
- the conventional moisture separation heaters 50 and 60 shown in FIGS. 9 and 10 are provided with two moisture separators 3 that are inclined and opposed to each other at the bottoms of the main body containers 2 and 61, respectively.
- the first stage heater 4a is disposed above the second stage heater 4b, and the second stage heater 4b is disposed above the first stage heater 4a.
- a drain passage 29 partitioned from a bottom plate 27 and a ceiling plate 28 is formed between the two moisture separators 3.
- flow path partition plates 31, 32a, and 32b are sequentially arranged from the lower heated steam inlet 13 to the upper heated steam outlet 14, and the moisture separator 3, the first A flow path for sequentially leading the heated steam to the stage heater 4a and the second stage heater 4b is formed.
- the drain channel 29 is isolated from the heated steam channel.
- a space surrounded by the flow path partition plate 31 and the flow path partition plate 32 a is communicated with the downstream side of the moisture separator 3.
- the space surrounded by the flow path partition plate 32a and the flow path partition plate 32b is communicated with the downstream side of the first stage heater 4a.
- the U-shaped heat transfer tubes 17a and 17b are composed of a plurality of heat transfer tube support plates 33a and 33b arranged at regular intervals along the longitudinal direction, and tube bundle side plates 34a and 34b that form a flow path of the steam to be heated. Retained.
- Inner rails 36a and 36b are provided on the tube bundle side plates 34a and 34b.
- outer rails 37a and 37b are provided on the flow path partition plates 32a and 32b.
- the tube bundle side plates 34a, 34b are held by inner rails 36a, 36b mounted on the outer rails 37a, 37b.
- the inner rails 36a and 36b are configured to be slidable on the outer rails 37a and 37b along the longitudinal direction of the U-shaped heat transfer tubes 17a and 17b. This structure allows thermal expansion of the U-shaped heat transfer tubes 17a and 17b accompanying the inflow of high-temperature heating steam by sliding between the inner rails 36a and 36b and the outer rails 37a and 37b.
- the conventional moisture separation heaters 50 and 60 configured in this way sequentially guide the heated steam flowing from the heated steam inlet 13 in the heating space 11 to the moisture separator 3 and the heater 4. Then, superheated steam generated by moisture separation and heating is sent from the heated steam outlet 14 to the low-pressure turbine.
- the steam to be heated flows into the lower part of the main body containers 2 and 61 as a low-temperature saturated steam and flows out from the upper parts of the main body containers 2 and 61 as superheated steam. For this reason, a temperature gradient is generated in the main body containers 2 and 61 and the internal structure such as the moisture separator 3 and the heater 4 so as to increase in temperature upward. As a result, the central portions of the main body containers 2 and 61 cause a dorsiflexion that rises compared to the both end portions.
- the inner rails 36a and 36b provided on the tube bundle side plates 34a and 34b tend to be higher in temperature than the outer rails 37a and 37b provided on the flow path partition plates 32a and 32b. Due to this temperature difference, there is a difference in the amount of thermal deformation between both rails, so that a gap is generated in the mutual contact surface in the vicinity of the center of both rails. Leakage occurs.
- a moisture separation heater including a pad member that sandwiches the inner rails 36a and 36b together with the outer rails 37a and 37b and suppresses a gap generated on the contact surfaces of both rails is known (for example, JP 2000-310401 A). Gazette: see Japanese Patent Application Laid-Open No. 2003-228826.
- the length of the heat transfer tube used for the heater is around 10 m from the viewpoint of manufacturing technology.
- the conventional Simplex type moisture separation heater it has been difficult for the conventional Simplex type moisture separation heater to increase the amount of heat exchange compared to the conventional Duplex type moisture separation heater.
- the Simplex type moisture separation heater having a heat exchange amount comparable to that of the conventional Duplex type moisture separation heater.
- the conventional Simplex type moisture separation heater requires a large number of installations in order to obtain the same heat exchange amount as the conventional Duplex type moisture separation heater. Many good Duplex type moisture separator heaters are applied.
- the central portion of the main body container is deformed by the temperature gradient generated inside the main body container.
- the inner rail provided on the tube bundle side plate tends to be hotter than the outer rail provided on the flow path partition plate.
- a heater using a long heat transfer tube has a large difference in the amount of thermal deformation between both rails, and the U-shaped heat transfer tube is lifted by the floating force of the steam to be heated. A larger gap occurs than
- an object of the present invention is to provide a moisture separation that makes it possible to sufficiently reduce the leakage path between the inner rail and the outer rail regardless of the length of the heat transfer tube in view of the above prior art. It is to propose a heater.
- the present invention provides a horizontal cylindrical main body container whose both ends are sealed by an end plate, and is disposed on the end plate side in the main body container, and defines a header space between the end plate A first partition plate and a second partition plate disposed in the main body container and partitioning the heating space between the header side partition plate and a lower portion of the heating space, and flowing from the bottom of the main body container A moisture separator for separating the moisture of the heated steam, a heater disposed above the moisture separator in the main body container, and a heated steam inlet provided at the bottom of the main body container The heated steam flows into the moisture separator, and after passing therethrough, is disposed in the heating space and a flow path partition plate that divides the inside of the heating space and flows into the heater.
- a moisture separation heater comprising a restraining member, The heater has a heater header disposed in the header space, and a U-shaped heat transfer tube connected to the heater header, and the U-shaped heat transfer tube is positioned in the heating space. And a straight pipe part for heating the heated steam that has passed through the moisture separator, and a curved pipe part positioned in an outer space of the heating space, wherein the pipe bundle side plate is provided on the pipe bundle side plate.
- the flow path partition plate has an outer rail on which the inner rail is slidably mounted along the longitudinal direction of the U-shaped heat transfer tube, and the restraining member includes:
- the tube bundle side plate is sandwiched together with the outer rail to restrain the back of the tube bundle side plate from being deformed.
- Distance to the end of the header When the L1, and the distance from the nearest arranged the restraining member to the curved pipe section to the end of the curved pipe portion of the straight tube portion and L2, 0.2 ⁇ L1 / L, L2 / L ⁇ 0.4
- a moisture separator heater arranged to satisfy the requirements.
- the restraining member may be a pad member provided on the flow path partition plate and sandwiching the inner rail together with the outer rail.
- the restraining member may be a pad member that is provided on the flow path partition plate, extends over the tube bundle side plate, and sandwiches the tube bundle side plate and the inner rail together with the outer rail.
- the inner rail and the restraining member are disposed with a gap.
- the restraining member is constituted by the heat transfer tube support plate formed so as to sandwich the inner rail together with the outer rail.
- the inner rail and the restraining member are disposed with a gap.
- the restraining member may be constituted by the heat transfer tube support plate that extends on the tube bundle side plate and is formed so as to sandwich the tube bundle side plate and the inner rail together with the outer rail.
- the axial direction (longitudinal direction) sectional view which showed schematic structure of the moisture separation heater based on 1st Embodiment of this invention.
- the II-II sectional view taken on the line in FIG. 1 which showed schematic structure of the moisture separation heater based on 1st Embodiment of this invention.
- Schematic which showed the positional relationship of the heater and pad member of the moisture separation heater which concern on 1st Embodiment of this invention.
- FIG. 1 is an axial (longitudinal) cross-sectional view showing a schematic configuration of a moisture separation heater according to the first embodiment of the present invention.
- the moisture separation heater 1 is a Simplex type moisture separation heater.
- the moisture separator / heater 1 includes a cylindrical main body container 2 facing sideways (longitudinal direction in the installed state), and a moisture separator 3 and a heater 4 accommodated in the main body container 2.
- the inside of the main body container 2 is partitioned by a first partition plate 6 and a second partition plate 7.
- a header space 10 is defined between the first partition plate 6 and the end plate 8.
- a heating space 11 is defined between the first partition plate 6 and the second partition plate 7.
- a heated steam inlet 13 communicating with the heating space 11 is provided at the lower part of the main body container 2.
- a heated steam outlet 14 communicated with the heating space 11 is provided at the upper part of the main body container 2.
- the first partition plate 6 and the second partition plate 7 have an opening (not shown) through which the heater 4 is inserted.
- the moisture separator 3 is disposed at the bottom of the heating space 11.
- the moisture separator 3 separates the moisture of the heated steam flowing from the heated steam inlet 13 provided at the bottom of the main body container 2.
- the heater 4 includes a first stage heater 4a heated by high-pressure turbine bleed air and a second stage heater 4b heated by main steam sent from the nuclear reactor.
- the 1st stage heater 4a and the 2nd stage heater 4b are comprised from the heating steam headers 16a and 16b (heater header), and several U-shaped heat exchanger tubes 17a and 17b, respectively.
- the heated steam headers 16 a and 16 b are arranged in the header space 10.
- the straight pipe portions 18a and 18b of the U-shaped heat transfer tubes 17a and 17b are arranged in the heating space 11 and heat the steam to be heated.
- the bent tube portions 19a and 19b of the U-shaped heat transfer tubes 17a and 17b are disposed in a space 22 (outside space of the heating space 11) defined between the second partition plate 7 and the end plate 21.
- the first stage heater 4a and the second stage heater 4b include heating steam pipes 24a and 24b penetrating the end plate 8 of the main body container 2 for communication with the outside of the moisture separation heater 1, respectively.
- the vent pipes 25a and 25b are connected to the drain pipes 26a and 26b.
- FIG. 2 is a longitudinal sectional view showing a schematic configuration of the moisture separation heater according to the first embodiment of the present invention.
- the moisture separation heater 1 includes two moisture separators 3 that are inclined and opposed to each other at the bottom of the main body container 2, and a first stage heater 4a disposed above the two moisture separators 3. Further, the second stage heater 4b is disposed above the second stage heater 4b. Between the two moisture separators 3, a drain passage 29 partitioned from a bottom plate 27 and a ceiling plate 28 is formed.
- flow path partition plates 31, 32 a, 32 b are sequentially arranged from the lower heated steam inlet 13 to the upper heated steam outlet 14, and the moisture separator 3, first stage heating A flow path for sequentially leading the heated steam to the heater 4a and the second stage heater 4b is formed.
- the drain channel 29 is isolated from the heated steam channel.
- a space surrounded by the flow path partition plate 31 and the flow path partition plate 32 a is communicated with the downstream side of the moisture separator 3.
- the space surrounded by the flow path partition plate 32a and the flow path partition plate 32b is communicated with the downstream side of the first stage heater 4a.
- the U-shaped heat transfer tubes 17a and 17b are constituted by a plurality of heat transfer tube support plates 33a and 33b arranged at regular intervals along the longitudinal direction, and tube bundle side plates 34a and 34b that form a flow path of the heated steam. Retained.
- Inner rails 36a and 36b are provided on the tube bundle side plates 34a and 34b.
- outer rails 37a and 37b are provided on the flow path partition plates 32a and 32b.
- the tube bundle side plates 34a, 34b are held by inner rails 36a, 36b mounted on the outer rails 37a, 37b.
- the inner rails 36a and 36b are configured to be slidable on the outer rails 37a and 37b along the longitudinal direction of the U-shaped heat transfer tubes 17a and 17b. This structure allows thermal expansion of the U-shaped heat transfer tubes 17a and 17b accompanying the inflow of high-temperature heating steam by sliding between the inner rails 36a and 36b and the outer rails 37a and 37b.
- the passage partition plates 32a and 32b are provided with pad support pieces 39a and 39b, respectively, and the pad support pieces 39a and 39b are provided with pad members 40a and 40b (restraint members), respectively.
- the pad members 40a and 40b sandwich the tube bundle side plates 34a and 34b together with the outer rails 37a and 37b, respectively, and restrain the deformation of the back of the tube bundle side plates 34a and 34b.
- the pad members 40a and 40b sandwich the respective inner rails 36a and 36b together with the respective outer rails 37a and 37b.
- the pad members 40a and 40b are provided at a plurality of locations in the longitudinal direction of the U-shaped heat transfer tubes 17a and 17b.
- the pad members 40a and 40b may be brought into contact with the respective inner rails 36a and 36b, and a gap may be provided between each of the inner rails 36a and 36b.
- the inner rails 36a and 36b are more slidable, and the heater 4 is allowed to be deformed. , 40b can be suppressed.
- FIG. 3 is a schematic view showing the positional relationship between the heater and the pad member of the moisture separation heater according to the first embodiment of the present invention.
- FIG. 4 is a view showing the relationship between the installation position of the pad member of the moisture separation heater according to the first embodiment of the present invention and the gap generated between the inner rail and the outer rail.
- the pad members 40aa and 40ba disposed closest to the heating steam headers 16a and 16b and the bent tube portions 19a and 19b are disposed closest to each other.
- the pad members 40ab and 40bb are arranged so as to have a relation of [Equation 1].
- L1 Distance from the pad members 40aa, 40ba to the ends of the straight pipe portions 18a, 18b on the heated steam headers 16a, 16b side.
- L2 distance from the pad members 40ab and 40bb to the ends of the curved pipe portions 19a and 19b of the straight pipe portions 18a and 18b.
- the gap (broken line d in FIG. 4) generated between the inner rails 36a and 36b and the outer rails 37a and 37b is different from the pad members 40aa and 40ba and the pad members 40ab and 40bb. 1], it can be made as small as possible.
- the reaction force (solid line n in FIG. 4) generated in the pad members 40aa and 40ba and the pad members 40ab and 40bb can be made as small as possible as compared with the case where they are installed in other parts.
- FIG. 5 is a diagram showing the relationship between the installation position of the pad member of the moisture separation heater according to the first embodiment of the present invention and the temperature of the superheated steam at the heated steam outlet.
- a gap (broken line d in FIG. 5) generated between the inner rails 36a and 36b and the outer rails 37a and 37b is defined by the following equation (1).
- the pad members 40aa and 40ba and the pad members 40ab and 40bb It is possible to make it as small as possible by arranging in the relationship.
- the temperature of the superheated steam at the heated steam outlet 14 indicates that sufficient heat exchange is performed between the heater 4 and the heated steam.
- the deformation (deflection) of the inner rails 36a and 36b is restricted by the pad members 40a and 40b, and the amount of thermal deformation between the inner rails 36a and 36b and the outer rails 37a and 37b.
- the gap between the two rails caused by the floating of the heater 4 due to the floating force of the heated steam flowing in the main body container 2 is reduced.
- the pad members 40a and 40b as shown in [Equation 1]
- the reaction force generated in the gap between the rails and the pad members 40a and 40b can be minimized.
- the moisture separation heater 1 can make the gap between both rails as small as possible, it can sufficiently suppress the performance degradation due to the leakage path between both rails.
- the leakage path between the inner rails 36a and 36b and the outer rails 37a and 37b regardless of the length of the U-shaped heat transfer tubes 17a and 17b. Can be small enough.
- the moisture separation heater 1 has been described by taking a Simplex type moisture separation heater as an example, but can also be applied to a Duplex type moisture separation heater.
- FIG. 6 is a longitudinal sectional view showing a schematic configuration of a moisture separation heater according to the second embodiment of the present invention.
- pad support pieces 39 ⁇ / b> Aa and 39 ⁇ / b> Ab are respectively provided on the flow path partition plates 32 a and 32 b of the moisture separation heater 1 ⁇ / b> A according to the present embodiment, and the pad support pieces 39 ⁇ / b> Aa and 39 ⁇ / b> Ab are respectively provided.
- Pad members 40Aa and 40Ab (restraint members) are provided. The pad members 40Aa and 40Ab sandwich the tube bundle side plates 34a and 34b together with the respective outer rails 37a and 37b, and restrain the deformation of the back of the tube bundle side plates 34a and 34b.
- the pad members 40Aa and 40Ab extend to the upper ends of the tube bundle side plates 34a and 34b, and together with the outer rails 37a and 37b, the upper half of the tube bundle side plates 34a and 34b and the inner rails. 36a and 36b are sandwiched.
- the pad members 40Aa and 40Ab are provided at a plurality of locations in the longitudinal direction of the U-shaped heat transfer tubes 17a and 17b.
- the pad members 40Aa and 40Ab may be brought into contact with the respective tube bundle side plates 34a and 34b, and a gap may be provided between each of the tube bundle side plates 34a and 34b.
- the inner rails 36a, 36b are more slidable and the heater 4 is allowed to be deformed. , The reaction force generated in 40 Ab can be suppressed.
- the pad members 40Aaa, 40Ab arranged closest to the heating steam headers 16a, 16b and the pad members 40Aab, 40Abb arranged closest to the curved pipe portions 19a, 19b are [ They are arranged so as to have the relationship of [Equation 1].
- the moisture separator / heater 1A configured in this way, deformation (deflection) of the tube bundle side plates 34a, 34b is constrained by the pad members 40Aa, 40Ab, and the amount of thermal deformation between the inner rails 36a, 36b and the outer rails 37a, 37b. And the gap between the two rails caused by the floating of the heater 4 due to the floating force of the heated steam flowing in the main body container 2 is reduced.
- the pad members 40Aa and 40Ab as in [Equation 1]
- the gap between the rails and the reaction force generated in the pad members 40Aa and 40Ab can be minimized.
- the moisture separation heater 1A can make the gap between both rails as small as possible, the performance degradation due to the leakage path between both rails can be sufficiently suppressed.
- the leakage path between the inner rails 36a and 36b and the outer rails 37a and 37b regardless of the length of the U-shaped heat transfer tubes 17a and 17b. Can be small enough.
- the moisture separation heater 1A has been described by taking a Simplex type moisture separation heater as an example, but can also be applied to a Duplex type moisture separation heater.
- FIG. 7 is a longitudinal sectional view showing a schematic configuration of a main part of a moisture separation heater according to the third embodiment of the present invention.
- the heat transfer tube support plate 33 ⁇ / b> A is a restraining member that sandwiches the tube bundle side plate 34 together with the outer rail 37 of the flow path partition plate 32 to restrain deformation of the back of the tube bundle side plate 34. Specifically, the heat transfer tube support plate 33 ⁇ / b> A sandwiches the inner rail 36 together with the outer rail 37.
- the heat transfer tube support plate 33 ⁇ / b> A may be in contact with the inner rail 36, or a gap may be provided between the heat transfer tube support plate 33 ⁇ / b> A and the inner rail 36.
- the heat transfer tube support plate 33A disposed closest to the heating steam headers 16a and 16b and the heat transfer tube support plate 33A disposed closest to the bent tube portions 19a and 19b are: They are arranged so as to have the relationship of [Equation 1].
- the deformation (deflection) of the inner rail 36 is restrained by the heat transfer tube support plate 33A, the difference in the amount of thermal deformation between the inner rail 36 and the outer rail 37, and the main body container
- the gap between the rails caused by the rising of the heater 4 due to the levitation force of the heated steam flowing in the rail 2 is reduced.
- the heat transfer tube support plate 33A as shown in [Equation 1]
- the gap between the rails and the reaction force generated in the heat transfer tube support plate 33A can be minimized.
- the moisture separation heater 1B can make the gap between both rails as small as possible, the performance degradation due to the leakage path between both rails can be sufficiently suppressed.
- the leakage path between the inner rail 36 and the outer rail 37 can be made sufficiently small regardless of the length of the U-shaped heat transfer tubes 17a and 17b. .
- the moisture separation heater 1B has been described by taking a Simplex type moisture separation heater as an example, it can also be applied to a Duplex type moisture separation heater.
- FIG. 8 is a longitudinal sectional view showing a schematic configuration of a main part of a moisture separation heater according to the fourth embodiment of the present invention.
- a plurality of moisture tubes arranged at regular intervals along the longitudinal direction of the U-shaped heat transfer tubes 17 a and 17 b are disposed inside the main body container 2 of the moisture separation heater 1 ⁇ / b> C according to the present embodiment.
- a heat transfer tube support plate 33A (restraint member) is provided.
- the heat transfer tube support plate 33 ⁇ / b> A is a restraining member that sandwiches the tube bundle side plate 34 together with the outer rail 37 of the flow path partition plate 32 to restrain deformation of the back of the tube bundle side plate 34.
- the heat transfer tube support plate 33 ⁇ / b> A extends to the upper end portion of the tube bundle side plate 34 and sandwiches the upper half portion of each tube bundle side plate 34 and the inner rail 36 together with the outer rail 37.
- the heat transfer tube support plate 33 ⁇ / b> A may be brought into contact with each tube bundle side plate 34, and a gap may be provided between each tube bundle side plate 34.
- the heat transfer tube support plate 33 ⁇ / b> A may be in contact with the inner rail 36, or a gap may be provided between the heat transfer tube support plate 33 ⁇ / b> A and the inner rail 36.
- the heat transfer tube support plate 33A disposed closest to the heating steam headers 16a and 16b and the heat transfer tube support plate 33A disposed closest to the bent tube portions 19a and 19b are: They are arranged so as to have the relationship of [Equation 1].
- the deformation (deflection) of the tube bundle side plate 34 is restrained by the heat transfer tube support plate 33A, the difference in thermal deformation amount between the inner rail 36 and the outer rail 37, and the main body container
- the gap between the rails caused by the rising of the heater 4 due to the levitation force of the heated steam flowing in the rail 2 is reduced.
- the heat transfer tube support plate 33A as shown in [Equation 1]
- the gap between the rails and the reaction force generated in the heat transfer tube support plate 33A can be minimized.
- the moisture separation heater 1C can make the gap between both rails as small as possible, the performance degradation due to the leakage path between both rails can be sufficiently suppressed.
- the leakage path between the inner rail 36 and the outer rail 37 can be made sufficiently small regardless of the lengths of the U-shaped heat transfer tubes 17a and 17b. .
- the moisture separation heater 1C according to the present embodiment has been described by taking a Simplex type moisture separation heater as an example, but can also be applied to a Duplex type moisture separation heater.
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Abstract
Description
従って、本発明の目的は、上記従来技術を鑑み、伝熱管の長さにかかわらず、インナーレールとアウターレールとの間の漏洩経路を十分に小さくすることを可能とした湿分分離加熱器を提案することである。
前記加熱器は、前記ヘッダ空間に配置された加熱器ヘッダと、前記加熱器ヘッダに接続されたU字状伝熱管と、を有し、前記U字状伝熱管は、前記加熱空間に位置され、前記湿分分離器を通過した前記被加熱蒸気の加熱する直管部と、前記加熱空間の外側空間に位置された曲管部と、から成り、前記管束側板は、前記管束側板に設けられたインナーレールを有し、前記流路仕切板は、前記インナーレールが前記U字状伝熱管の長手方向に沿って摺動可能に載置されたアウターレールを有し、前記拘束部材は、前記アウターレールとともに前記管束側板を挟み込み、前記管束側板の猫背変形を拘束するとともに、前記直管部の全長をL、前記加熱器ヘッダに最も近く配置された前記拘束部材から前記直管部の前記加熱器ヘッダ側の端部までの距離をL1、前記曲管部に最も近く配置された前記拘束部材から前記直管部の前記曲管部側の端部までの距離をL2としたとき、
0.2≦L1/L、L2/L≦0.4
を満足するよう配置されたことを特徴とする湿分分離加熱器。
本発明に係る湿分分離加熱器の第1実施形態について図1から図5を参照して説明する。
0.2≦L1/L、L2/L≦0.4
L:直管部18a、18bの全長。
本発明に係る湿分分離加熱器の第2実施形態について図6を参照して説明する。
本発明に係る湿分分離加熱器の第3実施形態について図7を参照して説明する。
本発明に係る湿分分離加熱器の第4実施形態について図8を参照して説明する。
Claims (9)
- 両端が鏡板により封止された円筒形状の本体容器と、
前記本体容器内の前記鏡板側に配置され、前記鏡板との間にヘッダ空間を区画する第一仕切板と、
前記本体容器内に配置され、前記ヘッダ側仕切板との間に加熱空間を区画する第二仕切板と、
前記加熱空間の下部に配置され、前記本体容器の底部から流入した被加熱蒸気の湿分を分離する湿分分離器と、
前記本体容器内で上記湿分分離器の上方に配置された加熱器と、
前記本体容器の底部に設けた被加熱蒸気入り口から流入した前記被加熱蒸気が、前記湿分分離器に流入し、通過した後に前記加熱器に流入するように前記加熱空間の内部を区画する流路仕切板と、
前記加熱空間に配置され、前記加熱器の長手方向に沿って適当間隔に配設された複数の伝熱管支え板と、
前記流路仕切板に載置され、前記加熱器の長手方向に沿って延設された前記加熱器を支持する管束側板と、
前記加熱空間に配置された複数の拘束部材と、を備えた、湿分分離加熱器であって、
前記加熱器は、前記ヘッダ空間に配置された加熱器ヘッダと、前記加熱器ヘッダに接続されたU字状伝熱管と、を有し、
前記U字状伝熱管は、前記加熱空間に位置され、前記湿分分離器を通過した前記被加熱蒸気の加熱する直管部と、前記加熱空間の外側空間に位置された曲管部と、から成り、
前記管束側板は、前記管束側板に設けられたインナーレールを有し、
前記流路仕切板は、前記インナーレールが前記U字状伝熱管の長手方向に沿って摺動可能に載置されたアウターレールを有し、
前記拘束部材は、前記アウターレールとともに前記管束側板を挟み込み、前記管束側板の猫背変形を拘束するとともに、前記直管部の全長をL、前記加熱器ヘッダに最も近く配置された前記拘束部材から前記直管部の前記加熱器ヘッダ側の端部までの距離をL1、前記曲管部に最も近く配置された前記拘束部材から前記直管部の前記曲管部側の端部までの距離をL2としたとき、
0.2≦L1/L、L2/L≦0.4
を満足するよう配置されたことを特徴とする湿分分離加熱器。 - 前記拘束部材は、前記流路仕切板に設けられ、前記アウターレールとともに前記インナーレールを挟み込むパッド部材で構成されたことを特徴とする請求項1に記載の湿分分離加熱器。
- 前記インナーレールと前記拘束部材とは隙間を有して配設されていることを特徴とする請求項2に記載の湿分分離加熱器。
- 前記拘束部材は、前記流路仕切板に設けられ、前記管束側板の上部に延設され、前記アウターレールとともに前記管束側板と前記インナーレールとを挟み込むパッド部材で構成されたことを特徴とする請求項1に記載の湿分分離加熱器。
- 前記管束側板の上部と前記拘束部材とは隙間を有して配設されていることを特徴とする請求項4に記載の湿分分離加熱器。
- 前記拘束部材は、前記アウターレールとともに前記インナーレールを挟み込むように形成された前記伝熱管支え板で構成されたことを特徴とする請求項1に記載の湿分分離加熱器。
- 前記インナーレールと前記拘束部材とは隙間を有して配設されていることを特徴とする請求項6に記載の湿分分離加熱器。
- 前記拘束部材は、前記管束側板の上部に延設され、前記アウターレールとともに前記管束側板と前記インナーレールとを挟み込むように形成された前記伝熱管支え板で構成されたことを特徴とする請求項1に記載の湿分分離加熱器。
- 前記管束側板の上部と前記拘束部材とは隙間を有して配設されていることを特徴とする請求項8に記載の湿分分離加熱器。
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US13/147,324 US8657911B2 (en) | 2009-02-03 | 2010-02-02 | Moisture separator/heater |
CN201080006544.9A CN102308149B (zh) | 2009-02-03 | 2010-02-02 | 去湿器/加热器 |
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RU2546934C1 (ru) * | 2014-03-19 | 2015-04-10 | Акционерное общество "Опытное Конструкторское Бюро Машиностроения имени И.И. Африкантова" (АО "ОКБМ Африкантов") | Горизонтальный парогенератор |
JP6963492B2 (ja) * | 2017-12-21 | 2021-11-10 | 三菱パワー株式会社 | 湿分分離設備、発電プラント、及び蒸気タービンの運転方法 |
RU2764349C1 (ru) * | 2021-04-02 | 2022-01-17 | Акционерное общество "Машиностроительный завод "ЗиО-Подольск" (АО "ЗиО-Подольск") | Горизонтальный сепаратор-пароперегреватель |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS62245008A (ja) * | 1986-04-17 | 1987-10-26 | 株式会社東芝 | 蒸気タ−ビン用再熱装置 |
JP2000310401A (ja) | 1999-04-27 | 2000-11-07 | Toshiba Corp | 湿分分離加熱器 |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4016835A (en) * | 1975-08-01 | 1977-04-12 | Southwestern Engineering Company | Moisture separator-reheater |
KR790001907B1 (ko) * | 1976-04-10 | 1979-12-28 | 아끼다 다께오 | 가열 제습방법 |
US4485069A (en) * | 1982-01-20 | 1984-11-27 | Westinghouse Electric Corp. | Moisture separator reheater with round tube bundle |
SU1268871A1 (ru) * | 1985-06-04 | 1986-11-07 | Научно-Производственное Объединение "Техэнергохимпром" | Сепаратор пара |
SU1370362A1 (ru) * | 1985-11-21 | 1988-01-30 | Производственное Объединение "Союзхимпромэнерго" | Парогенератор |
JPS63116005A (ja) * | 1986-11-04 | 1988-05-20 | 株式会社東芝 | 湿分分離再熱器 |
JP2714264B2 (ja) | 1991-01-29 | 1998-02-16 | 株式会社東芝 | 湿分分離加熱器 |
RU2027948C1 (ru) * | 1991-02-19 | 1995-01-27 | Институт проблем энергетики АН Республики Беларусь | Котел-утилизатор |
JPH04369306A (ja) * | 1991-06-17 | 1992-12-22 | Toshiba Corp | 湿分分離加熱装置 |
BE1005764A3 (nl) | 1992-04-15 | 1994-01-18 | Atlas Copco Airpower Nv | Inrichting voor het drogen van een gas. |
RU2151950C1 (ru) * | 1998-12-29 | 2000-06-27 | Открытое акционерное общество по наладке, совершенствованию технологии и эксплуатации электростанций и сетей "УралОРГРЭС" | Барабан-сепаратор |
US7842113B2 (en) * | 2006-09-20 | 2010-11-30 | Babcock & Wilcox Power Generation Group, Inc. | Extended water level range steam/water conical cyclone separator |
-
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Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS62245008A (ja) * | 1986-04-17 | 1987-10-26 | 株式会社東芝 | 蒸気タ−ビン用再熱装置 |
JP2000310401A (ja) | 1999-04-27 | 2000-11-07 | Toshiba Corp | 湿分分離加熱器 |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2013038864A1 (ja) * | 2011-09-16 | 2013-03-21 | 住友化学株式会社 | ミスト分離装置及び反応システム |
CN103648606A (zh) * | 2011-09-16 | 2014-03-19 | 住友化学株式会社 | 雾滴分离装置及反应系统 |
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