CN210831948U - Superheated steam generator and superheated steam generation system - Google Patents

Abstract

The utility model relates to the technical field of nuclear energy application, and provides an superheated steam generating device and an superheated steam generating system, wherein the superheated steam generating device comprises a cylinder body, and a steam generator, a steam-water separator and a steam superheater which are fixed in the cylinder body from bottom to top in sequence; the side wall of the cylinder body is provided with a primary side water inlet and a primary side water outlet of a steam superheater, which are communicated with the steam superheater, and the primary side water inlet and the water outlet of the steam superheater are used for being connected to a hot water pipeline of the pressurized water reactor in parallel; the bottom of the cylinder body is provided with a primary side inlet and a primary side outlet of the steam generator, the outlet of a hot water pipeline of the pressurized water reactor is connected to the primary side inlet of the steam generator, and the top of the cylinder body is provided with a superheated steam outlet. The utility model discloses saturated steam can not appear and easily condense in transmission process, the phenomenon of liquid drop or liquid fog appears, the remote transmission of being convenient for satisfies remote industrial user's demand, has improved steam transport distance and utilization ratio.

Description

Superheated steam generator and superheated steam generation system

Technical Field

The utility model relates to a nuclear energy application technology field especially relates to superheated steam generating device and superheated steam generation system.

Background

The steam has wide application in daily life and industrial production process, and the nuclear reactor is used for supplying the steam, so that the consumption of fossil energy is reduced, and the emission of carbon dioxide is reduced.

A traditional pressurized water reactor generally adopts a saturated natural circulation steam generator, the heat of a reactor core is led out through the circulation of a reactor coolant system, and the reactor coolant can directly flow through the primary side of the steam generator; or transferring heat to the intermediate isolated heat transfer circuit through a heat exchanger, the medium of the intermediate isolated heat transfer circuit flowing through the primary side of the steam generator. After the water on the secondary side of the steam generator absorbs the heat of the water on the primary side, the water is vaporized to generate saturated steam, and the generated saturated steam is used for generating power or supplying heat for a steam turbine.

However, saturated steam is easy to condense in the transmission process, liquid drops or liquid mist occurs, so that the requirements of long-distance industrial users cannot be met, and the steam conveying distance and the steam utilization rate are limited.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, the utility model discloses an aspect provides a superheated steam generator to solve saturated steam and carry the problem short, that the steam utilization is low.

The utility model discloses another aspect still provides a superheated steam generation system.

In one aspect, according to the present invention, a superheated steam generator includes:

the steam-water separator is characterized by comprising a cylinder body, and a steam generator, a steam-water separator and a steam superheater which are sequentially fixed in the cylinder body from bottom to top;

a steam superheater primary side water inlet and a steam superheater primary side water outlet which are communicated with the steam superheater are formed in the position, corresponding to the steam superheater, of the side wall of the barrel, and the steam superheater primary side water inlet and the steam superheater primary side water outlet are used for being connected to a hot water pipeline of the pressurized water reactor in parallel;

the bottom of the cylinder body is positioned on the primary side of the steam generator and is provided with a steam generator primary side inlet and a steam generator primary side outlet, an outlet of a hot water pipeline of the pressurized water reactor is connected to the steam generator primary side inlet and is used for heating water in the secondary side of the steam generator to form saturated steam, and hot water after heat exchange is discharged from the steam generator primary side outlet;

the top of the cylinder body is provided with a superheated steam outlet.

According to an embodiment of the present invention, the steam generator includes a heat transfer pipe and a tube plate, the heat transfer pipe being installed in the barrel through the tube plate.

According to one embodiment of the utility model, the heat transfer pipe is covered with a lining cylinder, a water supply gap is reserved between the lining cylinder and the barrel, and the top outer side of the lining cylinder is provided with a steam generator water supply ring pipe for supplying water to the water supply gap;

the outer wall of the lining cylinder is connected with the inner wall of the cylinder body through a supporting rib, and a water passing gap is reserved between the bottom end of the lining cylinder and the upper surface of the tube plate.

According to the utility model discloses an embodiment, the lateral wall of barrel is equipped with the intercommunication steam generator secondary side feedwater entry of steam generator feedwater ring canal, steam generator secondary side feedwater entry is used for connecting the supply channel.

According to the utility model discloses an embodiment, the bottom of barrel is constructed there is the low head, the lower extreme of tube sheet with the low head is connected, the last surface distribution of tube sheet has the locating hole of installation the heat-transfer pipe.

According to the utility model discloses an embodiment, the heat-transfer pipe is the U type nest of tubes that a plurality of U type pipes of falling are arranged side by side and are formed, every the opening orientation of the U type pipe of falling one side of tube sheet, just the both ends of the U type pipe of falling are the fastening installation respectively in the locating hole.

According to the utility model discloses an embodiment, be equipped with in the cavity of low head and be used for separating the baffle of the side of intaking and the play water side of type of falling U nest of tubes, steam generator once side entry is located the bottom of low head just is located the side of intaking of type of falling U nest of tubes, steam generator once side export is located the bottom of low head just is located the play water side of type of falling U nest of tubes.

According to an embodiment of the present invention, the steam-water separator is installed on the top of the lining cylinder, and the top of the lining cylinder is provided with a plurality of steam via holes;

the steam superheater is supported above the steam-water separator through a supporting part arranged on the inner wall of the cylinder body.

According to one embodiment of the utility model, a steam generator sewage draining interface is arranged on the side wall of the cylinder body close to the tube plate, and a steam generator hand hole is arranged on the side wall of the cylinder body close to the tube plate and staggered with the steam generator sewage draining interface;

and a secondary side manhole of a steam generator is arranged between the steam-water separator and the steam superheater of the cylinder body.

According to the utility model discloses an embodiment, steam superheater adopts spiral pipe, U type pipe or coiled pipe etc..

In a second aspect, a superheated steam generation system according to an embodiment of the present invention includes a pressurized water reactor and the superheated steam generator; the primary side water inlet and the primary side water outlet of the steam superheater are connected to a hot water pipeline of the pressurized water reactor in parallel, and at least part of hot water of the pressurized water reactor flows through the steam superheater to heat saturated steam in the steam superheater to form superheated steam;

and an outlet of a hot water pipeline of the pressurized water reactor is connected to an inlet of a primary side of the steam generator, water in a secondary side of the steam generator is heated to form saturated steam, and hot water after heat exchange is discharged from an outlet of the primary side of the steam generator and is sent to the pressurized water reactor through a circulation loop.

The embodiment of the utility model provides an in above-mentioned one or more technical scheme, one of following technological effect has at least:

the embodiment of the utility model provides a superheated steam generating device, including the barrel, from bottom to top fix in steam generator, catch water and steam superheater in the said barrel sequentially; a steam superheater primary side water inlet and a steam superheater primary side water outlet which are communicated with the steam superheater are formed in the position, corresponding to the steam superheater, of the side wall of the cylinder body, and the steam superheater primary side water inlet and the steam superheater primary side water outlet are used for being connected to a hot water pipeline of the pressurized water reactor in parallel, so that at least part of hot water of the pressurized water reactor flows through the steam superheater to heat saturated steam in the steam superheater to form superheated steam, a superheated steam outlet is formed in the top of the cylinder body, and the superheated steam is discharged from the superheated steam outlet and supplied to a user; the bottom of the cylinder body is positioned on the primary side of the steam generator and is provided with a steam generator primary side inlet and a steam generator primary side outlet, an outlet of a hot water pipeline of the pressurized water reactor is connected to the steam generator primary side inlet and used for heating water in the secondary side of the steam generator to form saturated steam, and hot water after heat exchange is discharged from the steam generator primary side outlet. The embodiment of the utility model adopts the pressurized water reactor as the heat source to produce the superheated steam, which can replace the traditional industrial boiler and reduce the emission of greenhouse gas; based on the mature nuclear power saturated steam technology, extra electric power or fossil fuel is not required to be consumed, and the method has the advantages of simple thermodynamic system and strong economic competitiveness. In addition, superheated steam can not carry moisture in the transmission process because of the existence of superheat degree, is always in a dry state, can not appear that saturated steam is easy to condense in the transmission process, and the phenomenon of liquid drop or liquid fog appears, and the remote transmission of being convenient for satisfies remote industrial user's demand, has improved steam transport distance and utilization ratio.

In addition, the high-temperature water flowing out of the steam superheater and the high-temperature water which does not flow through the steam superheater are mixed and then introduced into the primary side of the steam generator, the heat of the high-temperature water is used for heating the feed water at the secondary side of the steam generator to generate saturated steam, and the saturated steam flows through the steam superheater to form a continuous steam cycle.

In addition, the embodiment of the utility model provides an in, the process that the aqueous phase becomes steam takes place in steam generator, can avoid appearing the scale deposit of superheater heat-transfer pipe surface and corrosion problems among the superheated steam generating device.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic sectional view of a superheated steam generator according to an embodiment of the present invention;

FIG. 2 is a schematic diagram of a superheated steam generation system according to an embodiment of the present invention;

reference numerals:

1: a primary side inlet of the steam generator; 2: a primary side outlet of the steam generator; 3: a tube sheet; 4: steam generator hand holes; 5: a steam generator blowdown interface; 6: a support plate; 7: a barrel; 8: a heat transfer tube; 9: a liner; 10: a steam generator; 11: a steam generator water supply loop pipe; 12: a secondary side feed water inlet of the steam generator; 13: a steam-water separator; 14: a secondary side manhole of the steam generator; 15: a primary side water outlet of the steam superheater; 16: a support portion; 17: a primary side water inlet of the steam superheater; 18: a steam superheater; 19: a superheated steam outlet;

101: a pressurized water reactor; 102: a circulation pump; 103: and adjusting the valve.

Detailed Description

The following describes embodiments of the present invention in further detail with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.

In the description of the embodiments of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of describing the embodiments of the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the embodiments of the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the embodiments of the present invention, it should be noted that, unless explicitly stated or limited otherwise, the terms "connected" and "connected" should be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the embodiments of the present invention can be understood in specific cases by those skilled in the art.

In embodiments of the invention, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of an embodiment of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

The pressurized water reactor is the most international commercial nuclear reactor type at present, and the principle is as follows: uranium-235 nuclear fuel in a nuclear reactor carries out chain nuclear reaction and generates heat, purified water in a closed circulating system of the nuclear reactor is heated, the heated purified water transfers the heat to water in a water supply loop of a steam generator in the steam generator, and then steam is formed to push a steam turbine generator to operate. The overall energy conversion process is roughly: nuclear energy → thermal energy → mechanical energy → electrical energy.

Nuclear energy results from the fission of uranium nuclei in a nuclear reactor, which generates enormous heat energy when the uranium nuclei continuously fission (called "chain reaction"). The nuclear reactor functions as a well known boiler, but the water in the boiler is generally heated by fire, and the water in the nuclear reactor is "heated" by nuclear fuel, so the nuclear reactor is also commonly called as a "nuclear boiler" in the past.

As shown in fig. 1, in a first aspect, an embodiment of the present invention provides a superheated steam generator, including:

the steam generator 10, the steam-water separator 13 and the steam superheater 18 are integrated in the barrel 7, so that the integral structure is compact, the occupied space is small, the steam flow path is short, the heat loss is small, the installation is convenient, the number of devices can be reduced and the system cost can be reduced under partial application scenes.

As shown in fig. 2, a steam superheater 18 is provided with a steam superheater primary side water inlet 17 and a steam superheater primary side water outlet 15 on a side wall of the barrel 7 corresponding to the steam superheater 18, the steam superheater primary side water inlet 17 and the steam superheater primary side water outlet 15 are used for being connected in parallel to a hot water pipeline of the pressurized water reactor 101, so that at least part of hot water of the pressurized water reactor 101 can pass through the steam superheater 18, and thus saturated steam passing through the steam superheater is heated by heat of the hot water to form superheated steam, and a superheated steam outlet 19 is provided on a top of the barrel 7, and the superheated steam is discharged from the superheated steam outlet 19 and supplied to a user; compared with saturated steam, superheated steam is dry without moisture, the phenomenon that the saturated steam is easy to condense in the transmission process and liquid drops or liquid mist is avoided, long-distance transmission is facilitated, the requirements of long-distance industrial users are met, and the steam transmission distance and the steam utilization rate are improved.

In order to adjust the amount of hot water flowing through the steam superheater 18, an adjusting valve 103 may be disposed on a hot water pipeline between the primary water inlet 17 and the primary water outlet 15 of the steam superheater to adjust the flow rate of hot water entering the steam superheater, so as to adjust the degree of superheat of steam. Therefore, the device can match the transmission distance and is used for industrial steam, steam/water cogeneration, hot film mixed seawater desalination and other scenes.

Specifically, when the regulating valve 103 is turned off, the hot water in the hot water pipeline flows through the steam superheater in its entirety, and when the regulating valve 103 is opened, the hot water in the hot water pipeline partially flows through the steam superheater, so that the degree of superheat of the steam can be regulated as required.

Because the heat required for heating the saturated steam into the superheated steam is smaller, the temperature of the hot water flowing through the steam superheater is not obviously reduced, and the heat of the part of hot water can be reused.

A steam generator primary side inlet 1 and a steam generator primary side outlet 2 are provided at the bottom of the cylindrical body 7 on the primary side of the steam generator, and an outlet of the hot water pipe of the pressurized water reactor 101 is connected to the steam generator primary side inlet 1 to supply heat in the unused hot water to the steam generator to heat water on the secondary side of the steam generator to form saturated steam, and the hot water after heat exchange is cooled to cold water, discharged from the steam generator primary side outlet 2, and is circulated and supplied to the pressurized water reactor 101, and is reheated by the pressurized water reactor 101 to be recycled.

The embodiment of the utility model adopts the pressurized water reactor 101 as a heat source to heat the saturated steam into superheated steam, which can replace the traditional industrial boiler and reduce the emission of greenhouse gas; based on the mature nuclear power saturated steam technology, extra electric power or fossil fuel is not required to be consumed, and the method has the advantages of simple thermodynamic system and strong economic competitiveness. In addition, superheated steam can not carry moisture in the transmission process because of the existence of superheat degree, is always in a dry state, can not appear that saturated steam is easy to condense in the transmission process, and the phenomenon of liquid drop or liquid fog appears, and the remote transmission of being convenient for satisfies remote industrial user's demand, has improved steam transport distance and utilization ratio.

In order to accommodate the bottom-to-top steam flow path, the drum 7 of the present embodiment is preferably a vertical drum, and the steam generator, the steam separator 13, and the steam superheater are preferably disposed coaxially with the drum 7.

According to a specific embodiment of the present invention, the steam generator comprises a heat transfer tube 8 and a tube plate 3, the heat transfer tube 8 is installed in the barrel 7 through the tube plate 3, the heat transfer tube 8 is used for connecting the outlet of the hot water pipeline of the pressurized water reactor 101, and heat is provided to the heat transfer tube 8 by the pressurized water reactor 101.

According to an embodiment of the present invention, a lining 9 is disposed on the outer cover of the heat transfer tube 8, a water supply gap is left between the lining 9 and the barrel 7, a steam generator water supply loop 11 is disposed on the outer side of the top of the lining 9 for supplying water to the water supply gap, and water flowing out of the steam generator water supply loop 11 flows to the water supply gap along the outer wall of the lining 9;

in order to fix the lining cylinder 9 conveniently, the top of the cylinder body 7 is provided with steam through holes, the outer wall of the lining cylinder 9 is connected with the inner wall of the cylinder body 7 through support ribs which are arranged at intervals and transversely arranged, and a water passing gap is reserved between the bottom end of the lining cylinder 9 and the upper surface of the tube plate 3. An external water source flows through the water supply gap from the water supply ring pipe 11 of the steam generator and flows into the lining sleeve 9 from the water passing gap to be contacted with the heat transfer pipe 8, part of heat of the heat transfer pipe 8 heats water into saturated steam, the saturated steam passes through the top of the lining sleeve 9, is subjected to moisture removal through the steam-water separator 13 and then passes through the steam superheater, and is heated into superheated steam in the steam superheater.

Further, a secondary side water supply inlet 12 of the steam generator is arranged on the side wall of the barrel 7 and communicated with the water supply ring pipe 11 of the steam generator, and the secondary side water supply inlet 12 of the steam generator is used for connecting a water supply pipeline and supplying water to the water supply ring pipe 11 of the steam generator through the water supply pipeline.

According to the utility model discloses an embodiment, the bottom of barrel 7 is constructed there is the low head, and the low head is hemisphere or ellipsoid shape, the lower extreme of tube sheet 3 with the low head is connected to fixed tube sheet 3, the shape of tube sheet 3 is disc or ellipse, size and the opening phase-match of low head, the last surface distribution of tube sheet 3 has a plurality of locating holes that are used for the installation heat-transfer pipe 8.

According to the utility model discloses an embodiment, heat-transfer pipe 8 is a plurality of inverted U type tube sets that form of arranging side by side, preferably, and inverted U type tube set is symmetrical arrangement, every about the longitudinal axis of barrel 7 the opening orientation of inverted U type tube one side of tube sheet 3, just the both ends of inverted U type tube are fastening installation respectively in the locating hole, and the open-ended one end of inverted U type tube is imported, and the other end is the export.

In addition, in order to fix the plurality of inverted U-shaped tubes together to form a whole, the plurality of inverted U-shaped tubes are provided with a plurality of supporting plates 6 at intervals along the length direction thereof, the supporting plates 6 can be arranged in pairs, and the plurality of inverted U-shaped tubes are clamped between the supporting plates 6, so that the plurality of inverted U-shaped tubes are fixed to form a whole.

According to the utility model discloses an embodiment, be equipped with in the cavity of low head and be used for separating the baffle of the side of intaking and the play water side of the type of falling U nest of tubes to form hot water chamber and cold water chamber in the low head, steam generator once side entry 1 is located the bottom of low head just is located the side of intaking of the type of falling U nest of tubes promptly with hot water chamber UNICOM, steam generator once side export 2 is located the bottom of low head just is located the play water side of the type of falling U nest of tubes promptly with cold water chamber UNICOM.

According to an embodiment of the present invention, in order to facilitate the fixation of the steam-water separator 13, the steam-water separator 13 is installed on the top of the liner 9, and a plurality of steam via holes are opened on the top of the liner 9, so as to facilitate the passage of saturated steam in the steam generator;

the steam superheater 18 is supported above the steam separator 13 by a support portion 16 provided on an inner wall of the drum 7, as shown in fig. 1.

According to an embodiment of the present invention, a steam generator sewage draining interface 5 is arranged on the side wall of the cylinder 7 near the tube plate 3 for online sewage draining of the secondary side sewage of the steam generator; the side wall of the cylinder 7 is provided with a steam generator hand hole 4 close to the tube plate 3 and staggered with the steam generator sewage discharge interface 5, the steam generator hand hole 4 is used for checking the surface of a heat transfer tube 8 in the area and the secondary side surface of the tube plate 3, and sludge can be washed by high-pressure water if necessary.

And a secondary manhole 14 of a steam generator is arranged between the steam-water separator 13 and the steam superheater of the cylinder 7 and is used for overhauling components.

In a specific embodiment, the steam superheater 18, specifically, the heat transfer pipe in the steam superheater 18, is arranged in a spiral pipe, a U-shaped pipe, or a serpentine pipe. When the heat transfer pipe adopts a U-shaped pipe, a plurality of U-shaped pipes can be overlapped to increase the surface area of the heat transfer pipe, so that heat can be fully transferred, the heat transfer pipe in the form of a spiral pipe or a coiled pipe has large heat transfer area, good heat exchange effect and convenient manufacture; of course, the heat transfer tube may take other suitable shapes.

In a second aspect, as shown in fig. 2, a superheated steam generation system according to an embodiment of the present invention includes a pressurized water reactor 101 and the superheated steam generator; the steam superheater primary side water inlet 17 and the steam superheater primary side water outlet 15 are connected to a hot water pipeline of the pressurized water reactor 101 in parallel, and at least part of hot water of the pressurized water reactor 101 flows through the steam superheater to heat saturated steam in the steam superheater to form superheated steam; an outlet of a hot water pipeline of the pressurized water reactor 101 is connected to the primary side inlet 1 of the steam generator, water in the secondary side of the steam generator is heated to form saturated steam, and hot water after heat exchange is discharged from the primary side outlet 2 of the steam generator and is sent to the pressurized water reactor 101 through a circulation loop. The pressurized water reactor 101 is a heat source and can replace the traditional industrial boiler, so that the emission of greenhouse gases is reduced; based on the mature nuclear power saturated steam technology, extra electric power or fossil fuel is not required to be consumed, and the method has the advantages of simple thermodynamic system and strong economic competitiveness. In addition, superheated steam can not carry moisture in the transmission process because of the existence of superheat degree, is always in a dry state, can not appear that saturated steam is easy to condense in the transmission process, and the phenomenon of liquid drop or liquid fog appears, and the remote transmission of being convenient for satisfies remote industrial user's demand, has improved steam transport distance and utilization ratio.

It should be noted that in this embodiment, "hot water flows at least partially through the steam superheater" means that the hot water may flow entirely through the steam superheater, or only a part of the hot water may flow through the steam superheater.

In the present embodiment, the side through which water flows is defined as the "primary side", and the side through which steam flows is defined as the "secondary side".

According to an embodiment of the present invention, the circulation loop may be provided with a circulation pump 102, and the circulation pump 102 is used to provide the power of water flow to form a water flow circulation loop.

The above embodiments are merely illustrative, and not restrictive, of the present invention. Although the present invention has been described in detail with reference to the embodiments, it should be understood by those skilled in the art that various combinations, modifications or equivalent substitutions may be made to the technical solution of the present invention without departing from the spirit and scope of the technical solution of the present invention, and all of the technical solutions should be covered by the scope of the claims of the present invention.

Claims (11)

1. The superheated steam generating device is characterized by comprising a cylinder body, a steam generator, a steam-water separator and a steam superheater, wherein the steam generator, the steam-water separator and the steam superheater are sequentially fixed in the cylinder body from bottom to top;

a steam superheater primary side water inlet and a steam superheater primary side water outlet which are communicated with the steam superheater are formed in the position, corresponding to the steam superheater, of the side wall of the barrel, and the steam superheater primary side water inlet and the steam superheater primary side water outlet are used for being connected to a hot water pipeline of the pressurized water reactor in parallel;

the bottom of the cylinder body is positioned on the primary side of the steam generator and is provided with a steam generator primary side inlet and a steam generator primary side outlet, an outlet of a hot water pipeline of the pressurized water reactor is connected to the steam generator primary side inlet and is used for heating water in the secondary side of the steam generator to form saturated steam, and hot water after heat exchange is discharged from the steam generator primary side outlet;

the top of the cylinder body is provided with a superheated steam outlet.

2. The superheated steam generator of claim 1, wherein the steam generator comprises heat transfer tubes and a tube sheet, the heat transfer tubes being mounted within the cartridge through the tube sheet.

3. The superheated steam generator as claimed in claim 2, wherein the heat transfer tube is covered with a lining tube, a water supply gap is left between the lining tube and the barrel, and a steam generator water supply pipe is arranged outside the top of the lining tube and used for supplying water to the water supply gap;

the outer wall of the lining cylinder is connected with the inner wall of the cylinder body through a supporting rib, and a water passing gap is reserved between the bottom end of the lining cylinder and the upper surface of the tube plate.

4. The superheated steam generator as claimed in claim 3, wherein the side wall of the drum is provided with a secondary side feed water inlet of the steam generator communicating with the feed water pipe of the steam generator, and the secondary side feed water inlet of the steam generator is connected with a feed water pipeline.

5. The superheated steam generator of claim 2, wherein a lower head is formed at the bottom of the cylinder, the lower end of the tube plate is connected with the lower head, and positioning holes for mounting the heat transfer tubes are distributed on the upper surface of the tube plate.

6. A superheated steam generator according to claim 5, wherein the heat transfer pipe is an inverted U-shaped pipe group formed by arranging a plurality of inverted U-shaped pipes in parallel, an opening of each of the inverted U-shaped pipes faces one side of the tube plate, and both ends of each of the inverted U-shaped pipes are respectively fastened and installed in the positioning holes.

7. The superheated steam generator of claim 6, wherein a partition is disposed in the cavity of the bottom head for separating the water inlet side and the water outlet side of the inverted U-shaped tube set, the inlet of the primary side of the steam generator is disposed at the bottom of the bottom head and located at the water inlet side of the inverted U-shaped tube set, and the outlet of the primary side of the steam generator is disposed at the bottom of the bottom head and located at the water outlet side of the inverted U-shaped tube set.

8. The superheated steam generator of claim 3, wherein the steam-water separator is mounted on the top of the liner, and the top of the liner is provided with a plurality of steam through holes;

the steam superheater is supported above the steam-water separator through a supporting part arranged on the inner wall of the cylinder body.

9. The superheated steam generator of claim 3, wherein the side wall of the barrel is provided with a steam generator waste connection adjacent to the tube sheet, and the side wall of the barrel is provided with a steam generator hand hole adjacent to the tube sheet and offset from the steam generator waste connection;

and a secondary side manhole of a steam generator is arranged between the steam-water separator and the steam superheater of the cylinder body.

10. The superheated steam generator of claim 1, wherein the steam superheater is a spiral pipe, a U-shaped pipe or a serpentine pipe.

11. A superheated steam generation system comprising a pressurized water reactor and the superheated steam generation device of any one of claims 1-10; the primary side water inlet and the primary side water outlet of the steam superheater are connected to a hot water pipeline of the pressurized water reactor in parallel, and at least part of hot water of the pressurized water reactor flows through the steam superheater to heat saturated steam in the steam superheater to form superheated steam;

and an outlet of a hot water pipeline of the pressurized water reactor is connected to an inlet of a primary side of the steam generator, water in a secondary side of the steam generator is heated to form saturated steam, and hot water after heat exchange is discharged from an outlet of the primary side of the steam generator and is sent to the pressurized water reactor through a circulation loop.

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