CN111780082A

CN111780082A - Steam generator system

Info

Publication number: CN111780082A
Application number: CN202010676395.2A
Authority: CN
Inventors: 谢君辉; 何华明; 刘东平; 薛凤丽
Original assignee: Zhejiang Junhua Shiye New Energy Equipment Co ltd
Current assignee: Zhejiang Junhua Shiye New Energy Equipment Co ltd
Priority date: 2020-07-14
Filing date: 2020-07-14
Publication date: 2020-10-16

Abstract

The application discloses a steam generator system, which comprises an evaporator and a separator, wherein the separator is provided with a water outlet, a steam-water inlet and a steam outlet, the evaporator is sequentially provided with a water-cooling grate, an ignition device, a hearth and a convection section from top to bottom, the side wall of the hearth is provided with a hearth superheater which surrounds the hearth for one circle, and the convection section is internally provided with a heating pipe; the water outlet of the separator is connected with the water-cooling grate, the water-cooling grate is connected with the inlet of the heating pipe, the outlet of the heating pipe is connected with the steam-water inlet of the separator, the steam outlet of the separator is connected with the inlet of the hearth superheater, and the outlet of the hearth superheater is connected with the main steam pipe. This application firstly can carry out abundant utilization to the heat in the evaporimeter, and secondly, forms soda through twice heating, consequently can isolate more steam in the separator, and the water content of the steam of isolating is lower, can improve the temperature of steam after heating steam in the furnace over heater again afterwards.

Description

Steam generator system

Technical Field

The application relates to the technical field of gas evaporation generators, in particular to a steam generator system.

Background

Compared with an industrial boiler, the gas-fired evaporator occupies small space, has low water volume (generally not more than 30L) and low pressure (generally not more than 0.7 MPa). Most of the existing gas evaporator systems are designed to feed the gas evaporator from a separator for heating, then feed the steam-water mixed gas formed by heating back to the separator for separation, and then separate the steam from the separator. Because the existing gas evaporator system has limited heating effect and low water supply quality, the evaporator is easy to form a layer of scale with extremely low heat conduction on the pipe wall, thereby influencing the heat exchange of the evaporator and reducing the service life of the evaporator. In addition, the temperature of the steam is reduced due to the reduction of the heat conductivity, and the steam temperature is reduced, so that the steam-water separation effect is reduced, the steam quantity is reduced, the water content of the separated steam is high, and the temperature and the quality of the steam are difficult to reach the level required by a user.

Disclosure of Invention

To improve the temperature and quality of steam, the present application provides a steam generator system.

The application provides a steam generator system adopts following technical scheme:

a steam generator system comprises an evaporator and a separator, wherein the separator is provided with a water outlet, a steam-water inlet and a steam outlet, the evaporator is sequentially provided with a water-cooled grate, an ignition device, a hearth and a convection section from top to bottom, the side wall of the hearth is provided with a hearth superheater which surrounds the hearth by one circle, and a heating pipe is arranged in the convection section;

the water outlet of the separator is connected with the water-cooling grate, the water-cooling grate is connected with the inlet of the heating pipe, the outlet of the heating pipe is connected with the steam-water inlet of the separator, the steam outlet of the separator is connected with the inlet of the hearth superheater, and the outlet of the hearth superheater is connected with the main steam pipe.

By adopting the technical scheme, the water in the separator is firstly fed into the water-cooled grate, the gas mixture is fed from top to bottom and is ignited after passing through the water-cooled grate, and the gas mixture is ignited below the water-cooled grate, therefore, water can be primarily heated in the water-cooled grate and then sent into the heating pipe in the convection section for reheating, formed steam and water are sent back into the separator from the steam-water inlet, the separated water is separated under the action of gravity, the steam is sent upwards from the steam outlet into the hearth superheater for reheating and then sent out, so that the heat in the evaporator can be fully utilized, secondly, steam water is formed by heating twice, so more steam can be separated in the separator, the water content of the separated steam is lower, and the temperature of the steam can be increased after the steam is heated in the hearth superheater again.

More preferably: the hearth superheater comprises a plurality of annular membrane wall pipe pieces, a steam distribution header and a steam collection header, wherein the steam distribution header and the steam collection header are arranged at two ends of each annular membrane wall pipe piece, the steam distribution header is connected with a water outlet of the separator, and the steam collection header is connected with a main steam pipe.

By adopting the technical scheme, steam is sent into the steam distribution header to be distributed, then is uniformly distributed into each annular membrane type wall pipe piece, is collected in the steam collection header after surrounding the hearth for a circle, and is finally sent into the main steam pipe.

More preferably: an air chamber positioned above the water-cooling grate is arranged in the evaporator, an isobaric flow guide part for separating the air chamber into two flow guide channels is arranged in the air chamber, and two ends of the isobaric flow guide part are connected to two inner side walls of the air chamber; the isobaric flow guide piece is positioned above the hearth water-cooling row, and the lower end of the isobaric flow guide piece is gradually protruded downwards from the two sides to the middle; and the two opposite side walls of the air chamber are respectively provided with a guide plate, the two guide plates are respectively positioned in the two guide channels, and the guide plates are positioned between the isobaric guide piece and the hearth water cooling row.

Through adopting above-mentioned technical scheme, during the gas mixture sent into the air chamber, under the effect of middling pressure water conservancy diversion spare in the air chamber, the gas mixture divides to flow through behind two water conservancy diversion passageways and gets into between isobaric water conservancy diversion spare and the furnace water-cooling is arranged, because the reposition of redundant personnel, so can be more even when sending into furnace water-cooling and arranging. Secondly, the lower end of the isobaric flow guide piece is arranged in a protruding mode, and the arrangement of the flow guide plate is combined, so that gas mixture can enter the hearth water cooling row uniformly.

More preferably: the cross section of the isobaric flow guide part is V-shaped or rhombic.

Through adopting above-mentioned technical scheme, V font or rhombus can both form and be the structure of bellied gradually downwards from both sides to the centre, and the rhombus goes up the water caltrop and can also be fine play the effect of reposition of redundant personnel.

More preferably: the guide plate comprises an integrally formed inclined part and a horizontal part, and the inclined part is connected to the side wall of the air chamber.

Through adopting above-mentioned technical scheme, the rake sets up and can carry out the water conservancy diversion better, and the setting of horizontal part then can make the gas mixture contact with isobaric water conservancy diversion spare earlier to form better cooperation, form more even admit air and send into in the furnace.

More preferably: the separator comprises a barrel, wherein a steam outlet, a steam water inlet connected with a steam collecting box and a water outlet connected with a circulating water pump are arranged on the barrel, the barrel comprises an upper barrel and a lower barrel which are communicated with each other, the steam water inlet is arranged on the side wall of the upper end of the upper barrel, the axial line of the steam water inlet deviates from the axial line of the upper barrel, a separating inner barrel is arranged on an upper cover plate of the upper barrel, the length of the separating inner barrel is smaller than that of the upper barrel, an overflow small hole is formed in the separating inner barrel, and a steam outlet communicated with the separating inner barrel is formed in the upper cover plate; the water outlet is arranged on the lower barrel.

Through adopting above-mentioned technical scheme, steam-water gets into and carries out the rotation separation in the barrel, and the light steam of density gets rid of to the center in the steam-water, gets into the separation inner tube by separation inner tube lower part to carry out gravity separation once more in the separation inner tube, in addition, in order to avoid steam to get into the atmospheric pressure that forms from the bottom and lead to water to be difficult for flowing downwards under the action of gravity, thereby lead to the steam water content to increase, consequently design overflow aperture makes the water on the separation inner tube can flow out from the overflow aperture. And the great water of density then adheres to the wall and flows downwards and gets into under the barrel, can effectual improvement steam-water separation effect under the dual function through gravity and screw force to the water content of effectual reduction steam.

More preferably: the diameter of the lower barrel is smaller than that of the upper barrel, a conical connecting section is arranged between the lower barrel and the upper barrel, the top of the conical connecting section is connected with the upper barrel, and the bottom of the conical connecting section is connected with the lower barrel; the inner side walls of the lower barrel and the conical connecting section are at least provided with a water stabilizing plate, and the surface of the water stabilizing plate is positioned on the axis of the lower barrel.

By adopting the technical scheme, the steam space is larger due to different designs, and a better separation effect can be achieved; simultaneously because rotatory inertial force acts on, the water that separates has certain speed, consequently blocks through steady water board in order to weaken the momentum for the momentum of water can not assault the aquatic in the lower barrel, in order to reach the effect of stabilizing separator water space water level.

More preferably: the lower extreme of water stabilizing plate is supported and is located on the delivery port, just the bottom of water stabilizing plate is along the width gradually big setting of barrel axis direction down.

Through adopting above-mentioned technical scheme, can restrain the production of delivery port whirl when water to the stability of guarantee water level that can be further.

More preferably: the separator is characterized by further comprising a water level meter sleeve, wherein a liquid level meter, the bottom and the lower barrel are arranged at the top of the water level meter sleeve, an exhaust pipe is connected between the side wall of the conical connecting section and the side wall of the water level meter sleeve, and the two ends of the exhaust pipe are respectively communicated with the conical connecting section and the water level meter sleeve.

Through adopting above-mentioned technical scheme, set up the level gauge in the water level gauge sleeve pipe, can reduce the influence of water level stability to the level gauge to make the detection of level gauge more accurate.

More preferably: the exhaust pipe extends towards the conical connecting section and is connected with a water level gauge stabilizing cover, and an opening which is arranged downwards is formed in the water level gauge stabilizing cover.

Through adopting above-mentioned technical scheme, the setting of cover is stabilized to the fluviograph, forms the opening of giving vent to anger of blast pipe down, and then avoids inside steam to cause to get into the fluviograph sleeve pipe from the blast pipe because of the rotation to influence the detection accuracy of fluviograph.

More preferably: a siphon device is arranged on the separator and comprises a horizontally arranged drain pipe and a horn pipe connected to the drain pipe, a small throttling hole for communicating the drain pipe and the horn pipe penetrates through the side wall of the drain pipe, and the aperture of the small throttling hole is smaller than the inner diameter of the horn pipe;

one end of the horn pipe, which is far away from the sewage discharge pipe, is upwards inserted into the separator, one end of the horn pipe, which is far away from the sewage discharge pipe, is provided with an oblique notch, and the side wall of one side, which is close to the sewage discharge pipe, of the oblique notch is provided with a horn groove;

the position of the sewage discharge pipe is lower than the low water level of the separator, and the normal water level of the separator is positioned between the upper end and the lower end of the horn groove.

Through adopting above-mentioned technical scheme, the water level of separator divide into low water level, normal water level and high water level, and when normal use, the water level is located between low water level and the high water level, and consequently, the water level is higher than the lowest of loudspeaker groove, and siphon device forms the siphon effect, the continuous discharge of moisture of the salt highest point in the separator during with normal operation to reduce the salinity of moisture in the separator, thereby slow down the interior scale deposit phenomenon of circulating line during normal operation.

Drawings

FIG. 1 is a first structural schematic diagram of the first embodiment, which shows the structure of the inner part of the cylinder body and a water stabilizing plate;

FIG. 2 is a schematic structural diagram II of the first embodiment, which shows the structure of the inner part of the cylinder body and the water stabilizing plate;

FIG. 3 is a top view of the first embodiment;

FIG. 4 is a schematic structural view of the second embodiment;

FIG. 5 is a schematic structural view of a siphon device according to a second embodiment;

FIG. 6 is a schematic view of the main structure of the third embodiment;

FIG. 7 is a schematic view of the main structure of the third embodiment, showing a partial structure;

FIG. 8 is a schematic side view of the third embodiment;

FIG. 9 is a schematic structural view of the fourth embodiment;

FIG. 10 is a schematic structural view of the fifth embodiment.

In the figure, 100, separator; 110. an upper cylinder body; 111. an upper cover plate; 112. a steam outlet; 120. a lower cylinder body; 121. a lower cover plate; 122. a water outlet; 123. a sewage draining outlet; 130. a steam-water inlet; 140. separating the inner barrel; 141. overflow small holes; 150. a tapered connecting section; 160. a water stabilizing plate; 170. a water gauge sleeve; 171. an exhaust pipe; 180. a liquid level meter; 190. a water gauge stabilizing cover; 191. an opening; 200. a siphon device; 210. a blow-off pipe; 211. a small orifice; 220. a flare tube; 221. a bevel notch; 222. a horn slot; 300. a generator case; 310. a blower; 320. an air inlet solenoid valve; 330. an air chamber; 331. an isobaric flow guide member; 332. a flow guide channel; 333. a baffle; 3331. an inclined portion; 3332. a horizontal portion; 340. a guide plate; 350. water-cooling the grate; 351. a finned tube; 352. a water inlet and collection tank; 353. discharging the water collection tank; 360. an ignition device; 370. a hearth; 371. an annular membrane wall segment; 372. a steam distribution header; 373. a steam collection box; 380. a convection section; 381. heating a tube; 382. a steam outlet; 390. an exhaust gas outlet; 400. a water replenishing pump; 500. a circulation pump; 600. a timing electromagnetic valve; 700. a main steam pipe.

Detailed Description

The present application is described in further detail below with reference to the attached drawings.

In the description of the present application, it is to be understood that the terms "upper", "lower", "left", "right", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing the present application and simplifying the description, and do not indicate or imply that the referred devices or elements must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present application.

Example 1: a separator, as shown in fig. 1, comprises a cylinder body which is divided into an upper cylinder body 110, a lower cylinder body 120 and a conical connecting section 150, wherein the upper cylinder body 110 and the lower cylinder body 120 are both cylindrical, the diameter of the upper cylinder body 110 is larger than that of the lower cylinder body 120, and the conical connecting section 150 connects the upper cylinder body 110 and the lower cylinder body 120.

An upper cover plate 111 is arranged at the top of the upper cylinder 110 for sealing, a steam inlet 130 is arranged on the side wall of the upper cylinder 110, and the steam inlet 130 is positioned at the top of the upper cylinder 110. Wherein, the axis of the steam inlet 130 is deviated from the axis of the upper cylinder 110, so that the steam can automatically form a spiral force after entering from the steam inlet 130.

The upper cover plate 111 is provided with a steam outlet 112, and the steam outlet 112 is communicated with the upper cylinder 110. The inner side of the upper cover plate 111 is provided with a separation inner cylinder 140, the steam outlet 112 and the upper cylinder 110 are coaxially arranged, and the diameter of the separation inner cylinder 140 is larger than that of the steam outlet 112. The length of the separation inner cylinder 140 is less than that of the upper cylinder 110, and the specific length and diameter are determined according to actual conditions. The bottom of the separation inner cylinder 140 is provided with an opening 191, a plurality of overflow small holes 141 are distributed on the side wall of the separation inner cylinder 140, the overflow small holes 141 penetrate through the side wall of the separation inner cylinder 140, the number of the overflow small holes 141 is 3 in the embodiment, and the overflow small holes 141 are located at the lower half position of the separation inner cylinder 140 and are uniformly distributed around the axial lead of the separation inner cylinder 140 (the uniform distribution is a preferable mode, and can be non-uniform or not arranged at the same horizontal position).

As shown in fig. 1 and 2, the tapered coupling segment 150 includes an upper cylindrical portion coupled to the upper cylinder 110 and a lower tapered portion coupled to the lower cylinder 120. The bottom of the lower cylinder 120 is provided with a lower cover plate 121, the lower cover plate 121 is provided with a water outlet 122 and a sewage outlet 123, the water outlet 122 is arranged at the center of the lower cover plate 121, the sewage outlet 123 is positioned at one side of the water outlet 122, and the water outlet 122 extends into the lower cylinder 120 and is higher than the sewage outlet 123 on the lower cover plate 121. A water replenishing opening (not shown in the figure) is arranged on the side wall of the lower cylinder 120 near the lower cover plate 121.

As shown in fig. 2 and 3, a water stabilizing plate 160 is disposed on the inner side wall of the lower cylinder 120 and the conical connection section 150, the surface of the water stabilizing plate 160 is located on the axial line of the lower cylinder 120, the lower end of the water stabilizing plate 160 abuts against the water outlet 122, and the bottom of the water stabilizing plate 160 is gradually wider along the axial line of the lower cylinder 120.

As shown in fig. 2, a water level meter sleeve 170 is disposed at one side of the cylinder, a liquid level meter 180 is disposed at the top of the water level meter sleeve 170, the bottom of the water level meter sleeve is communicated with the inside of the lower cylinder 120, an exhaust pipe 171 is connected between the side wall of the conical connection section 150 and the side wall of the water level meter sleeve 170, and two ends of the exhaust pipe 171 are respectively communicated with the conical connection section 150 and the water level meter sleeve 170. The exhaust pipe 171 extends into the conical connection section 150 to connect with a water level gauge stabilizing cover 190, and the water level gauge stabilizing cover 190 is provided with a downward opening 191.

The working principle is as follows: the steam water is fed from the steam water inlet 130 and enters the upper cylinder 110 for rotary separation, the steam with light density in the steam water is thrown to the center and enters the separation inner cylinder 140 from the lower part of the separation inner cylinder 140, and the steam is sent out from the steam outlet 112. Water drops are formed on the inner wall of the separation inner cylinder 140, larger water flows downwards along the wall to enter the lower cylinder 120, and part of water flows out of the overflow small holes 141 under the action of steam pressure.

The dense water flows downward while rotating on the upper cylinder 110 due to the rotational inertia force, and after the water enters the lower cylinder 120 of the tapered coupling section 150, the water still has a certain velocity, and is blocked by the water stabilizing plate 160 to reduce momentum, thereby flowing downward in the vertical direction.

Example 2: as shown in fig. 4 and 5, the difference from embodiment 1 is that a siphon device 200 is disposed on the separator 100, the siphon device 200 includes a drain pipe 210 and a flared pipe 220, the drain pipe 210 is horizontally disposed, and the position of the drain pipe 210 is lower than the low water level of the separator 100, one end of the flared pipe 220 is vertically connected to the drain pipe 210, a small throttling hole 211 for communicating the drain pipe 210 and the flared pipe 220 is disposed on the sidewall of the drain pipe 210 in a penetrating manner, and the aperture of the small throttling hole 211 is smaller than the inner diameter of the flared pipe 220.

One end of the flared tube 220, which is far away from the sewage pipe 210, is obliquely inserted upwards into the lower barrel 120, one end of the flared tube 220, which is far away from the sewage pipe 210, is provided with a beveled cut 221, the beveled cut 221 is provided with a flared groove 222 on the side wall, which is close to the sewage pipe 210, the flared groove 222 is in an upward flared shape, and the normal water level of the separator 100 is located between the upper end and the lower end of the flared groove 222.

The working principle is as follows: the difference from the embodiment is that continuous drainage is achieved by the siphon device 200, that is, the water level of the separator 100 is divided into a low water level, a normal water level and a high water level, and during normal use, the water level is between the low water level and the high water level, therefore, the water level is higher than the lowest position of the trumpet-shaped groove 222, the siphon device 200 forms a siphon effect, and water at the highest position of salt in the separator 100 is continuously drained during normal operation.

Example 3: an evaporator, as shown in fig. 6, comprises a generator case 300, wherein the generator case 300 is provided with an air chamber 330, a water-cooling grate 350, an ignition device 360, a hearth 370 and a convection section 380 in sequence from top to bottom.

The top of the generator case 300 is connected with a gas mixture inlet, and then the gas mixture inlet is provided with a blower 310 and an air inlet solenoid valve 320, and the gas is fed from the air inlet solenoid valve 320 and then fed into the generator case 300 together with the air through the blower 310.

Referring to fig. 7, an isobaric flow guide element 331 is arranged in the air chamber 330, the cross section of the isobaric flow guide element 331 is V-shaped or diamond-shaped, the isobaric flow guide element 331 is a V-shaped plate in the embodiment, the isobaric flow guide element 331 is located above the water-cooling rows of the hearth 370, and the lower end of the isobaric flow guide element 331 forms a structure gradually protruding downwards from two sides to the middle through the V-shaped structure. Two ends of the equal-pressure flow guide member 331 are respectively and fixedly connected to the inner side wall of the generator case 300, and two flow guide channels 332 are formed in a gap between two sides of the equal-pressure flow guide member 331 and the side wall of the generator case 300.

The guide plate 333 includes an inclined portion 3331 and a horizontal portion 3332, and the inclined portion 3331 and the horizontal portion 3332 are integrally bent, wherein one side of the inclined portion 3331 is fixedly connected to a sidewall of the gas chamber 330, and the other side thereof is inclined downward and connected to the horizontal portion 3332. Two guide plates 340 are arranged on the side wall provided with the guide plate 333, one end of each guide plate 340 is connected to the side wall, and the other end of each guide plate 340 is connected with the top of the generator box 300 in an inclined mode.

The water-cooled grate 350 includes finned tubes 351, an inlet header 352 and an outlet header 353. The finned tubes 351 are provided with a plurality of fins and are arranged in parallel, the water inlet collecting tank 352 and the water outlet collecting tank 353 are respectively and fixedly arranged at two opposite sides of the generator box body 300, one end of the finned tube 351 is communicated with the water inlet collecting tank 352, and the other end of the finned tube is communicated with the water outlet collecting tank 353.

The ignition device 360 is composed of an ion bar and an ignition motor, and the structure is prior art and will not be described in detail in this embodiment.

As shown in fig. 7 or 8, a furnace 370 superheater that surrounds the furnace 370 by one circle is disposed on a side wall of the furnace 370, the furnace 370 superheater includes three annular membrane wall segments 371, steam distribution headers 372 and steam collection headers 373, in this embodiment, the three annular membrane wall segments 371 are disposed, the steam distribution headers 372 and the steam collection headers 373 are disposed at two ends of the annular membrane wall segments 371, the steam distribution headers 372 are connected to the water outlets 122 of the separators 100, and the steam collection headers 373 are connected to the main steam pipe 700.

As shown in fig. 6 or 7, a heating pipe 381 is disposed in the convection section 380, the heating pipe 381 is spirally and upwardly coiled along the inner wall of the convection section 380, and a steam outlet 382 is disposed at the other end of the heating pipe 381 for connecting with the separator 100.

The working principle is as follows: after the gas mixture is fed into the gas chamber 330, the two guide channels 332 are formed under the blocking of the equal-pressure guide piece 331, then the gas mixture impacts the equal-pressure guide piece 331 along the horizontal direction under the guide of the guide plate 333, and then the gas mixture can be uniformly fed into the water-cooled grate 350 and then fed into the hearth 370 under the combined action of the equal-pressure guide piece 331 and the different intervals.

The water in the separator 100 is fed into the water-cooled grate 350, and the gas mixture is fed from top to bottom through the water-cooled grate 350 and then ignited by the ignition device 360, and because the gas mixture is ignited below the water-cooled grate 350, the water can be primarily heated in the water-cooled grate 350 and then fed into the heating pipe 381 in the convection section 380 for reheating. The steam water is sent back to the separator 100 from the steam outlet 382, the separated water is separated under the action of gravity, and the steam is sent upwards from the steam outlet 112 to the superheater of the furnace 370 for reheating and then sent out.

Embodiment 4 is a steam generator system, as shown in fig. 9, including a water replenishing pump 400, a circulation pump 500, the separator 100 of embodiment 1, and the evaporator of embodiment 3, wherein the water replenishing pump 400 is located on a water replenishing line, the water replenishing line is communicated with a water replenishing port of the separator 100, and water from a soft water tank enters the water replenishing line and is sent from the water replenishing port to the separator 100 by the water replenishing pump 400.

A timing drain pipe is connected to the drain outlet 123 of the separator 100, a timing solenoid valve 600 is arranged on the timing drain pipe, and sewage is discharged into the trench through the timing drain pipe.

The water outlet 122 of the separator 100 is communicated with the water inlet and collecting tank 352 of the water-cooled grate 350, the circulating pump 500 is arranged on a pipeline between the separator 100 and the water inlet and collecting tank 352, the steam-water outlet 382 of the heating pipe 381 is connected with the separated steam-water inlet 130, and the steam outlet of the separator 100 is connected with the steam distribution header 372.

Example 5, as shown in fig. 10, differs from example 4 in that: the separator 100 of example 2 was used.

The embodiments of the present invention are preferred embodiments of the present invention, and the scope of the present invention is not limited by these embodiments, so: all equivalent changes made according to the structure, shape and principle of the invention are covered by the protection scope of the invention.

Claims

1. A steam generator system, includes evaporimeter and separator (100), be provided with delivery port (122), soda import (130) and steam outlet (112) on separator (100), characterized by: the evaporator is sequentially provided with a water-cooled grate (350), an ignition device (360), a hearth (370) and a convection section (380) from top to bottom, the side wall of the hearth (370) is provided with a hearth (370) superheater which surrounds the hearth (370) for one circle, and a heating pipe (381) is arranged in the convection section (380);

the water outlet (122) of the separator (100) is connected with the water-cooling grate (350), the water-cooling grate (350) is connected with the inlet of the heating pipe (381), the outlet of the heating pipe (381) is connected with the steam-water inlet (130) of the separator (100), the steam outlet (112) of the separator (100) is connected with the inlet of the superheater of the hearth (370), and the outlet of the superheater of the hearth (370) is connected with the main steam pipe (700).

2. A steam generator system according to claim 1, wherein: the hearth (370) superheater comprises a plurality of annular membrane wall pipe sheets (371), a steam distribution header (372) and a steam collection header (373) which are arranged at two ends of the annular membrane wall pipe sheets (371), wherein the steam distribution header (372) is connected with a water outlet (122) of the separator (100), and the steam collection header (373) is connected with a main steam pipe (700).

3. A steam generator system according to claim 1, wherein: an air chamber (330) positioned above the water-cooling grate (350) is arranged in the evaporator, an isobaric flow guide piece (331) used for separating the air chamber (330) to form two flow guide channels (332) is arranged in the air chamber (330), and two ends of the isobaric flow guide piece (331) are connected to two inner side walls of the air chamber (330); the isobaric flow guide piece (331) is positioned above the water cooling rows of the hearth (370), and the lower end of the isobaric flow guide piece (331) is arranged in a downward and gradually protruding mode from two sides to the middle; guide plates (333) are respectively arranged on two opposite side walls of the air chamber (330), the two guide plates (333) are respectively positioned in the two guide channels (332), and the guide plates (333) are positioned between the isobaric guide piece (331) and the hearth (370) water-cooling row.

4. A steam generator system according to claim 3, wherein: the guide plate (333) includes an integrally formed inclined part (3331) and a horizontal part (3332), and the inclined part (3331) is connected to a sidewall of the air chamber (330).

5. A steam generator system according to claim 1, wherein: the separator (100) comprises a cylinder body, wherein a steam outlet (112), a steam-water inlet (130) connected with a steam collecting box and a water outlet (122) connected with a circulating water pump are arranged on the cylinder body, the cylinder body comprises an upper cylinder body (110) and a lower cylinder body (120) which are communicated with each other, the steam-water inlet (130) is arranged on the side wall of the upper end of the upper cylinder body (110), the axial line of the steam-water inlet (130) deviates from the axial line of the upper cylinder body (110), a separating inner cylinder (140) is arranged on an upper cover plate (111) of the upper cylinder body (110), the length of the separating inner cylinder (140) is smaller than that of the upper cylinder body (110), an overflow small hole (141) is arranged on the separating inner cylinder (140), and the steam outlet (112) communicated with the separating inner cylinder (140) is arranged on the; the water outlet (122) is arranged on the lower cylinder body (120).

6. A steam generator system according to claim 5, wherein: the diameter of the lower cylinder body (120) is smaller than that of the upper cylinder body (110), a conical connecting section (150) is arranged between the lower cylinder body (120) and the upper cylinder body (110), the top of the conical connecting section (150) is connected with the upper cylinder body (110), and the bottom of the conical connecting section is connected with the lower cylinder body (120); the inner side walls of the lower cylinder (120) and the conical connecting section (150) are at least provided with a water stabilizing plate (160), and the surface of the water stabilizing plate (160) is positioned on the axis of the lower cylinder (120).

7. A steam generator system according to claim 6, wherein: the lower end of the water stabilizing plate (160) is abutted to the water outlet (122), and the width of the bottom of the water stabilizing plate (160) along the axial lead direction of the lower cylinder body (120) is gradually increased.

8. A steam generator system according to claim 5, wherein: the separator (100) further comprises a water level meter sleeve (170), the top of the water level meter sleeve (170) is provided with a liquid level meter (180), the bottom of the water level meter sleeve is communicated with the interior of the lower barrel (120), an exhaust pipe (171) is connected between the side wall of the conical connecting section (150) and the side wall of the water level meter sleeve (170), and two ends of the exhaust pipe (171) are communicated with the conical connecting section (150) and the water level meter sleeve (170) respectively.

9. A steam generator system according to claim 8, wherein: the exhaust pipe (171) extends towards the conical connecting section (150) and is connected with a water level gauge stabilizing cover (190), and an opening (191) arranged downwards is formed in the water level gauge stabilizing cover (190).

10. A steam generator system according to claim 1, wherein: a siphon device (200) is arranged on the separator (100), the siphon device (200) comprises a horizontally arranged drain pipe (210) and a flared pipe (220) connected to the drain pipe (210), a small throttling hole (211) for communicating the drain pipe (210) and the flared pipe (220) penetrates through the side wall of the drain pipe (210), and the aperture of the small throttling hole (211) is smaller than the inner diameter of the flared pipe (220);

one end of the flared tube (220), which is far away from the sewage discharge pipe (210), is upwards inserted into the separator (100), one end of the flared tube (220), which is far away from the sewage discharge pipe (210), is provided with a bevel cut (221), and the side wall of one side, which is close to the sewage discharge pipe (210), of the bevel cut (221) is provided with a flared groove (222);

the position of the sewage discharge pipe (210) is lower than the low water level of the separator (100), and the normal water level of the separator (100) is positioned between the upper end and the lower end of the horn groove (222).