Start-up separator for reactor

Abstract

The invention relates to a starting separator of a reactor. The starting separator comprises a shell, a first separation module and a second separation module, the shell is provided with an exhaust port and a drainage port which are longitudinally arranged at an interval, and a cavity arranged between the exhaust port and the drainage port; the chamber is respectively communicated with the exhaust port and the drainage port; the first separation module comprises an annular cavity arranged in the cavity and a connecting pipe tangentially communicated with the annular cavity; the connecting pipe is used for connecting steam, and the steam entering the annular cavity does centrifugal motion in the annular cavity so as to realize gas-liquid separation; the second separation module is arranged between the first separation module and the exhaust port; the second separation module comprises a hollow cylinder body and a plurality of advancing channels formed in the cylinder body, so that the fluid separated by the first separation module enters the second separation module; each travel channel is a longitudinally extending curved path to impede the passage of a liquid phase in the fluid. The starting separator can cope with a vibration environment.

Description

Technical Field

[0001] The invention relates to the field of nuclear power equipment, in particular to a start-up separator of a reactor. Background Art

[0002] The reactor startup separator is a device used in nuclear power plants, mainly used to separate steam and water during the reactor startup phase. During the operation of the reactor, a steam-water mixture will be produced at the outlet of the steam generator, and the startup separator is needed to separate the mixture to ensure that the separated steam meets the access conditions of the steam turbine. High-quality steam parameters are conducive to improving the operating efficiency of the steam turbine, thereby improving the power generation efficiency of the entire nuclear power plant.

[0003] However, the startup separator in the related art can only be used in a stable environment. When used in some vibration environments prone to shaking and / or vibration, the steam-water separation effect of the startup separator in the related art is not good, because the vibration environment may cause the flow state of the steam-water mixture in the separator to change, resulting in a poor separation effect, and the liquid separated in the startup separator may also splash due to the vibration environment, thereby affecting the steam quality. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide a start-up separator for a reactor.

[0005] The technical solution adopted by the present invention to solve the technical problem is: construct a reactor startup separator, comprising:

[0006] A shell, wherein the shell is provided with an exhaust port and a drain port arranged at intervals in the longitudinal direction, and a chamber arranged between the exhaust port and the drain port; the chamber is communicated with the exhaust port and the drain port respectively;

[0007] A first separation module, comprising an annular cavity arranged in the chamber, and a connecting pipe tangentially connected to the annular cavity; the connecting pipe is used to receive steam, and the steam entering the annular cavity performs centrifugal motion in the annular cavity to achieve gas-liquid separation;

[0008] The second separation module is arranged in the chamber and is located between the first separation module and the exhaust port; the second separation module includes a hollow cylinder and a plurality of travel channels formed in the cylinder for the fluid separated by the first separation module to enter; each of the travel channels is a longitudinally extending curved path to hinder the passage of the liquid phase in the fluid.

[0009] In some embodiments, the first separation module further comprises an outer sleeve, and an inner sleeve disposed in the outer sleeve; a gap is provided between the inner sleeve and the outer sleeve to form the annular cavity; the connecting pipe is disposed on the outer side of the shell and communicates with the outer sleeve;

[0010] A sealing plate is connected between the outer sleeve and the inner sleeve to seal the top of the annular cavity; a first flow hole for the fluid to pass through is provided on the sealing plate.

[0011] In some embodiments, the outer sleeve is coaxially disposed in the chamber, and the circumferential outer wall of the outer sleeve is in contact with the inner wall of the chamber; a hollow channel is provided inside the inner sleeve, and the hollow channel connects the upper space of the outer sleeve and the lower space thereof;

[0012] The top surface of the sealing plate is an inclined surface that slopes inward from top to bottom, so as to guide the liquid above the outer sleeve to the hollow channel;

[0013] The second separation module further includes a separation plate connected between the inner wall of the chamber and the cylinder to guide the fluid to the travel channel.

[0014] In some embodiments, the second separation module includes a plurality of corrugated plates arranged in the cylinder, and the plurality of corrugated plates are arranged at intervals along a radial direction of the shell to form the traveling channel.

[0015] In some embodiments, each of the corrugated plates includes two longitudinally arranged straight segments, and at least two bent segments connected between the two straight segments;

[0016] Each of the corrugated plates also includes a horizontal segment connected to the straight segment adjacent to the exhaust port, and the connection between the horizontal segment and the corresponding straight segment forms an angle; and each of the horizontal segments extends in the same direction and has a gap between adjacent corrugated plates.

[0017] In some embodiments, the distance between two adjacent corrugated plates is between 15 mm and 25 mm;

[0018] And / or, each of the bending sections includes two linear units that are longitudinally arranged and connected to form an angle, and an angle α is formed between the second linear unit located at the lower side and the horizontal plane, and the angle α is between 40° and 50°.

[0019] In some embodiments, there is a longitudinal distance between the first separation module and the second separation module, and the distance is between 1800 mm and 2400 mm.

[0020] In some embodiments, a baffle is further disposed above the cylinder, the baffle is spaced apart from the cylinder, and is disposed longitudinally opposite to the top end port of the cylinder;

[0021] The gas phase separated by the second separation module flows from the gap between the baffle and the cylinder to the exhaust port.

[0022] In some embodiments, the startup separator further includes at least one wave-breaking plate for suppressing liquid surface shaking, which is disposed in the chamber and located between the first separation module and the hydrophobic port.

[0023] In some embodiments, the startup separator further comprises a spoiler bracket disposed at the drain port, the spoiler bracket obstructing liquid from entering the drain port to inhibit the liquid at the drain port from forming a vortex;

[0024] The startup separator further comprises a top plate arranged above the drain port, wherein the top plate and the drain port are arranged opposite to each other in the longitudinal direction.

[0025] In some embodiments, the shell includes a barrel, and two heads connected to the top and bottom of the barrel; the exhaust port is arranged on the upper head, and the drain port is arranged on the lower head; at least a part of the structure of the second separation module and the first separation module are arranged in the barrel;

[0026] Wherein, the startup separator further comprises a plurality of liquid level monitors; the plurality of liquid level monitors are arranged in the housing below the highest position of the annular cavity and are arranged at intervals in the longitudinal direction;

[0027] And / or, the startup separator further comprises one or more temperature monitors; the temperature monitors are arranged in the upper end cap and / or the lower end cap;

[0028] And / or, the startup separator further includes at least two pressure monitors; the at least two pressure monitors are respectively arranged at the circumferential inner walls of the exhaust port and the drain port.

[0029] The implementation of the present invention has the following beneficial effects: the startup separator can complete the steam-water separation work well even in the face of a vibration environment through secondary gas-liquid separation and gravity sedimentation, and the steam finally separated has good dryness. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The present invention will be further described below with reference to the accompanying drawings and embodiments, in which:

[0031] Figure 1 is a longitudinal sectional view of a startup separator of the present invention in one embodiment;

[0032] Figure 2 yes Figure 1 An enlarged view of the structure of the starter separator in the upper position is shown;

[0033] Figure 3 is a horizontal cross-sectional view of a first separation module of a startup separator of the present invention in one embodiment at a top view angle;

[0034] Figure 4 yes Figure 2 A magnified view of the structure selected by box A;

[0035] Figure 5 is a horizontal cross-sectional view of a second separation module of a startup separator of the present invention in one embodiment at a top view angle;

[0036] Figure 6 is a horizontal cross-sectional view of a start-up separator of the present invention in one embodiment, wherein a wave-breaking plate is shown;

[0037] Figure 7 yes Figure 1 An enlarged view of the structure of the starter separator in the lower position is shown.

[0038] Reference numerals:

[0039] Start the separator 100; shell 1; exhaust port 11; drain port 12; chamber 13; barrel 14; head 15; first separation module 2; annular cavity 21; connecting pipe 22; outer sleeve 23; inner sleeve 24; hollow channel 241; sealing plate 25; first flow hole 251; connecting rod 26; second separation module 3; barrel 31; travel channel 32; isolation plate 33; corrugated plate 34; straight section 341; bending section 342; straight unit 3421; horizontal section 343; baffle 35; wave-breaking plate 4; second flow hole 41; spoiler bracket 5; top plate 6; manhole 71; gate 72; liquid level monitor 81; pressure monitor 82; temperature monitor 83; base 9. DETAILED DESCRIPTION

[0040] In order to have a clearer understanding of the technical features, purposes and effects of the present invention, the specific embodiments of the present invention are now described in detail with reference to the accompanying drawings. In the following description, it should be understood that the directions or positional relationships indicated by "front", "back", "up", "down", "left", "right", "longitudinal", "horizontal", "vertical", "horizontal", "top", "bottom", "inside", "outside", "head", "tail", etc. are based on the directions or positional relationships shown in the accompanying drawings, are constructed and operated in a specific direction, and are only for the convenience of describing the present technical solution, rather than indicating that the device or element referred to must have a specific direction, and therefore cannot be understood as a limitation to the present invention.

[0041] It should also be noted that, in the present application, the direction of the central axis of rotation of an object such as a cylinder, a tube, etc. is defined as the axial direction, the circumferential direction is the direction around the axis of the cylinder, tube, etc. (perpendicular to the axis and perpendicular to the cross-sectional radius), and the radial direction refers to the direction along the diameter or radius. Among them, the axial direction, the circumferential direction and the radial direction together constitute the three orthogonal directions of the cylinder. It is worth noting that the "end" appearing in the terms such as "proximal end", "distal end", "one end", "the other end", "first end", "second end", "initial end", "end", "two ends", "free end", "upper end", "lower end", etc. is not limited to the end, endpoint or end face, but also includes a portion extending from the end, endpoint, or end face on the element to which the end, endpoint, or end face belongs for an axial distance and / or radial distance. The above definitions are only for the convenience of expression and cannot be understood as limitations on the present application.

[0042] Secondly, unless otherwise clearly specified and limited, the terms such as "installed", "connected", "connected", "fixed", "set" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. When an element is referred to as being "on" or "under" another element, the element can be "directly" or "indirectly" located on the other element, or there may be one or more intermediate elements. The terms "first", "second", "third", etc. are only for the convenience of describing the present technical solution, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first", "second", "third", etc. may explicitly or implicitly include one or more of the features. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0043] In the following description, specific details such as specific system structures, technologies, etc. are provided for the purpose of illustration rather than limitation, so as to provide a thorough understanding of the embodiments of the present invention. However, it should be clear to those skilled in the art that the present invention may be implemented in other embodiments without these specific details. In other cases, detailed descriptions of well-known systems, devices, circuits, and methods are omitted to prevent unnecessary details from obstructing the description of the present invention.

[0044] Please refer to Figure 1The present invention constructs a reactor startup separator 100, which mainly includes a shell 1, and a first separation module 2 and a second separation module 3 arranged in the shell 1; wherein the first separation module 2 and the second separation module 3 are arranged longitudinally, and the first separation module 2 is located below the second separation module 3; the first separation module 2 performs steam-water separation by rotation and centrifugation, and the second separation module 3 performs steam-water separation by physical blocking; the steam entering the shell 1 can flow through the gas-liquid separation effect of the first separation module 2 and the second separation module 3 in sequence, and is affected by gravity and airflow drag during the flow process.

[0045] Through this secondary gas-liquid separation + gravity action method, the startup separator 100 can well complete the steam-water separation work even in a vibration environment prone to shaking and / or vibration; moreover, the startup separator 100 can achieve a high level of steam-water separation efficiency, and can make the steam finally separated have good dryness. It can be supplemented here that the vibration environment can be understood as the vibration phenomenon existing in a place or area. The vibration environment can include natural vibrations and man-made vibrations. Natural vibrations can include vibrations of the ground or buildings caused by natural disasters such as earthquakes, waves, and wind shocks. And man-made vibrations can be vibrations caused by human factors such as vehicles, machinery and equipment, and building construction.

[0046] The startup separator 100 can be used for steam-water separation of the two-phase medium at the outlet of the steam generator during the start-up and shutdown stages of the unit, and plays a positive role in preventing the steam-water mixture from damaging the secondary circuit equipment, thereby ensuring the stability, reliability and safety of the secondary circuit.

[0047] In some embodiments, Figure 1 As shown, the housing 1 is provided with an exhaust port 11 and a drain port 12 which are arranged at intervals in the longitudinal direction, and a chamber 13 arranged between the exhaust port 11 and the drain port 12; the chamber 13 is communicated with the exhaust port 11 and the drain port 12 respectively.

[0048] The housing 1 may be cylindrical, vertically arranged, and mounted on a platform / ground in a field environment through a base 9. The housing 1 may include a barrel 14, and two elliptical heads 15 connected to the top and bottom of the barrel 14. The connection may be welding, riveting, etc.

[0049] The inner wall of the shell 1 defines a cylindrical chamber 13. At the same time, the top of the shell 1 can be opened to form an exhaust port 11, and the top of the shell 1 can be connected to an exhaust pipe connected to the exhaust port 11. Similarly, the bottom of the shell 1 can be opened to form a drain port 12, and the bottom of the shell 1 can be connected to a drain pipe connected to the exhaust port 11 and the drain port 12.

[0050] It can be understood here that the elliptical head 15 has a guiding function. The upper elliptical head 15 can guide the airflow flowing to the top of the chamber 13 to be output from the exhaust port 11, thereby reducing the backflow of the airflow, while the lower elliptical head 15 can guide the liquid at the bottom of the chamber 13 to flow out from the hydrophobic port 12 without remaining at the bottom of the chamber 13.

[0051] In some embodiments, reference may be made to Figure 2 The first separation module 2 may include an annular cavity 21 disposed in the chamber 13, and a connecting pipe 22 tangentially connected to the annular cavity 21; the connecting pipe 22 is used to connect steam, and the steam entering the annular cavity 21 performs centrifugal motion in the annular cavity 21 to achieve gas-liquid separation.

[0052] It is understood that the external steam will first pass through the pipe 22 and enter the annular cavity 21 for the first separation, and the tangentially arranged pipe 22 can provide assistance to the steam and help the steam to accelerate separation. During the separation process, the steam can perform centrifugal motion in the annular cavity 21 to separate steam and water, and during the centrifugal process, it will also perform sedimentation, adsorption and other movements to accelerate the separation.

[0053] like Figure 2 As shown, the first separation module 2 may include an outer sleeve 23 and an inner sleeve 24 disposed in the outer sleeve 23 ; there is a gap between the inner sleeve 24 and the outer sleeve 23 to form an annular cavity 21 .

[0054] It can be understood here that due to the tangential arrangement of the connecting pipe 22, the steam rotates at high speed in the annular cavity 21, and the droplets of the steam-water mixture will move radially outward due to the centrifugal force, and thus be thrown to the inner wall of the outer sleeve 23 and flow down along the inner wall of the outer sleeve 23; while the lighter gas phase will rotate close to the axis and rise along the outer wall of the inner sleeve 24.

[0055] Since the steam flows at high speed during centrifugal motion, the outer sleeve 23 can play a protective role, ensuring that the high-speed steam will not excessively scour the inner wall of the chamber 13 during the flow process, which has a positive effect on extending the service life of the shell 1. The inner sleeve 24 can play a guiding role, allowing the steam to flow in rotation.

[0056] The outer sleeve 23 may be coaxially disposed in the chamber 13 , and the circumferential outer wall of the outer sleeve 23 is in contact with the inner wall of the chamber 13 .

[0057] Please see below Figure 3 A hollow passage 241 is provided inside the inner sleeve 24 , and the hollow passage 241 connects the upper space of the outer sleeve 23 and the lower space thereof.

[0058] A plurality of connecting rods 26 arranged circumferentially may be provided between the outer sleeve 23 and the inner sleeve 24 to fix the inner sleeve 24 in the outer sleeve 23 .

[0059] Secondly, please read back Figure 2 A sealing plate 25 may be connected between the outer sleeve 23 and the inner sleeve 24 to seal the top of the annular cavity 21 ; the sealing plate 25 is provided with a first flow hole 251 for the fluid separated by the first separation module 2 to pass through.

[0060] The top surface of the sealing plate 25 can be a slope that slopes inward from top to bottom. The slope can play a guiding role, guiding the liquid above the outer sleeve 23 to the hollow channel 241, and then flowing to the bottom of the chamber 13.

[0061] The first flow hole 251 can be set near the top edge of the sealing plate 25. Because when the steam is centrifugal, droplets may also splash upward. A first flow hole 251 that is too short will cause droplets to flow out of the first flow hole 251, affecting the separation effect; at the same time, the droplets will also block the first flow hole 251, affecting the flow effect.

[0062] Continue to refer Figure 2 The pipe 22 can be arranged on the outer side of the housing 1 in the circumferential direction, and can be connected to the outer sleeve 23 by opening a hole in the circumferential direction of the housing 1. Figure 3 There may be two connecting pipes 22 , which are respectively arranged on opposite sides of the outer sleeve 23 , and the two connecting pipes 22 are rotationally symmetrically arranged.

[0063] Next, please look at the second separation module 3. Figure 2 The second separation module 3 is disposed in the chamber 13 and is located between the first separation module 2 and the exhaust port 11. Meanwhile, there is a longitudinal distance between the second separation module 3 and the first separation module 2.

[0064] It can be understood here that the fluid separated by the first separation module 2 needs to rise a certain distance before entering the second separation module 3. During the rising process, due to the drag of gravity and airflow, before entering the second separation module 3, some larger particle droplets in the fluid will not be able to continue rising due to their own large mass and will eventually settle.

[0065] The above-mentioned spacing can be understood as the distance between the highest point of the first separation module 2 and the lowest point of the second separation module 3. The spacing can be between 1800 mm and 2400 mm, preferably between 2000 mm and 2200 mm.

[0066] In some embodiments, reference may be made to Figure 4The second separation module 3 includes a hollow cylinder 31 and a plurality of travel channels 32 formed in the cylinder 31 for the fluid separated by the first separation module 2 to enter; each travel channel 32 is a longitudinally extending curved path to hinder the passage of the liquid phase in the fluid.

[0067] It can be understood here that since the travel channel 32 is a curved path extending longitudinally, after the fluid enters the travel channel 32, the droplets in the fluid will contact the wall of the travel channel 32, especially in the bending part of the travel channel 32. Under the action of the surface tension of water, the droplets will converge on the wall of the travel channel 32; at the same time, the droplets will also converge to form larger droplets, which will settle under the action of gravity.

[0068] For the second separation module 3, when the air flow velocity entering the travel channel 32 is low, the surface tension of water and gravity sedimentation separation play a dominant role in separation; when the air flow velocity entering the travel channel 32 is high, the collision and convergence of the bent part of the travel channel 32 and the capture effect along the way play a dominant role in separation.

[0069] like Figure 5 As shown, the cylinder 31 may be a square structure. A plurality of corrugated plates 34 may be arranged in the cylinder 31 . The corrugated plates 34 are arranged vertically and spaced apart along the radial direction of the shell 1 to form a travel channel 32 .

[0070] The corrugated plate 34 may be fixedly connected in the cylinder 31; for example, the horizontal sides of the corrugated plate 34 may be welded to the circumferential inner wall of the cylinder 31. Secondly, the distance between two adjacent corrugated plates 34 may be equal.

[0071] Can be reviewed Figure 4 Each corrugated plate 34 may include two straight segments 341 arranged longitudinally, and at least two bent segments 342 connected between the two straight segments 341. Each corrugated plate 34 also includes a horizontal segment 343 connected to the straight segment 341 adjacent to the exhaust port 11, and the connection between the horizontal segment 343 and the corresponding straight segment 341 forms an angle; and each horizontal segment 343 extends in the same direction, and there is a gap between the adjacent corrugated plates 34.

[0072] It is understandable here that the droplets in the fluid are easily carried out by steam due to the vibration environment, and the corrugated plate 34 can improve the effect of droplet collision and collection through the double bend + hook structure, ensuring that the droplets can settle by gravity.

[0073] Optionally, the spacing between two adjacent corrugated plates 34 is between 15 mm and 25 mm. It is understandable that if the travel channel 32 is too wide, it is not conducive to the collision and collection of droplets, and if the spacing between the travel channels 32 is too narrow, it is not conducive to the circulation of airflow.

[0074] Alternatively, the bending segment 342 is a line segment unit in a folded line shape. Each bending segment 342 includes two straight line units 3421 arranged longitudinally and connected to form an angle, and an angle α is formed between the second straight line unit 3421 located at the lower side and the horizontal plane, and the angle α is between 40° and 50°. It can be understood here that if the angle α is too large, it is not conducive to the collision of the droplets with the corrugated plate 34, and if the angle α is too small, it is not conducive to the circulation of airflow.

[0075] In some embodiments, you can review Figure 2 The second separation module 3 may further include an isolation plate 33 connected between the inner wall of the chamber 13 and the cylinder 31 , for guiding the fluid to the travel channel 32 .

[0076] It is understandable here that, because the outer diameter of the cylinder 31 is smaller than the inner diameter of the chamber 13, the isolation plate 33 can block the fluid from passing through the outer side of the cylinder 31. Due to the small size of the cylinder 31, the time that the fluid stays between the isolation plate 33 and the first separation module 2 can be extended, thereby facilitating the gravity sedimentation of the droplets. In addition, during the rising process, the fluid will also contact the isolation plate 33, which can also achieve the effect of liquid collision and convergence.

[0077] In some embodiments, reference may be made to Figure 4 A baffle 35 is also provided above the cylinder 31. The baffle 35 is spaced apart from the cylinder 31 and is longitudinally arranged opposite to the top end port of the cylinder 31. The gas phase separated by the second separation module 3 flows from the space between the baffle 35 and the cylinder 31 to the exhaust port 11.

[0078] It is understood that the baffle 35 can intercept the liquid droplets entrained by the steam due to the vibration environment, thereby ensuring the outlet dryness. At the same time, the baffle 35 can also achieve the effect of liquid collision and convergence.

[0079] In some embodiments, reference may be made to Figure 1 The startup separator 100 also includes at least one wave-breaking plate 4 for suppressing liquid surface shaking, which is arranged in the chamber 13 and located between the first separation module 2 and the drain port 12.

[0080] It is understood that the separated liquid will flow to the bottom of the chamber 13 and slowly flow out from the drain port 12, so liquid is deposited in the lower part of the chamber 13. In view of the fact that the separator 100 is prone to shaking when it is started, the liquid deposited in the lower part of the chamber 13 will splash upward, thereby affecting the separation effect of the separation module. Therefore, by setting the wave-breaking plate 4, the liquid surface shaking of the liquid deposited in the lower part of the chamber 13 can be suppressed. According to different on-site working conditions, multiple wave-breaking plates 4 can be set at different heights, which are not limited here.

[0081] Optionally, in Figure 6 In the illustrated embodiment, the outer diameter of the wave-breaking plate 4 can be equivalent to the inner diameter of the chamber 13, that is, the circumferential side wall of the wave-breaking plate 4 can be fixedly connected to the circumferential inner wall of the chamber 13. The wave-breaking plate 4 is also provided with a second flow hole 41 for liquid to pass through; a plurality of second flow holes 41 can be provided, distributed in the middle of the wave-breaking plate 4.

[0082] Also optionally, the outer diameter of the wave-breaking plate 4 may be smaller than the inner diameter of the chamber 13 , and the liquid may flow through the space between the wave-breaking plate 4 and the circumferential inner wall of the chamber 13 .

[0083] Secondly, the start-up separator 100 may also include a liquid level monitor 81 for monitoring the liquid level of the chamber 13, that is, for monitoring the liquid level of the liquid deposited inside the chamber 13. It can be understood here that since the height of the liquid level will change with the change of the amount of steam entering, when the liquid level is higher than a certain value, when it encounters shaking and / or vibration, the liquid in the start-up separator 100 will splash upward, which will have a bad effect on the separation of the first separation module 2, so multiple liquid level monitors 81 can be set to monitor the liquid level at different heights. When the liquid level exceeds the threshold, the height of the liquid level can be reduced by reducing the opening of the pipe 22 and / or increasing the opening of the drain port 12. For example, multiple liquid level monitors 81 can be arranged longitudinally and spaced apart in the barrel 14 of the shell 1, wherein the highest liquid level monitor 81 can be set in the annular cavity 21 of the first separation module 2. In addition, since the wave-breaking plate 4 can prevent the liquid level from shaking, the wave-breaking plate 4 can also ensure that the liquid level monitor 81 can read the water level normally; therefore, preferably, the liquid level monitor 81 can be arranged in the chamber 13 and located on the upper or lower side of the wave-breaking plate 4.

[0084] The start-up separator 100 may further include a pressure monitor 82 for monitoring the pressure. For example, the pressure monitor 82 may be arranged in the exhaust port 11 and / or the drain port 12 of the housing 1, and the pressure monitor 82 may be arranged at the circumferential inner wall of the exhaust port 11 and / or the drain port 12; by monitoring the pressure change of the exhaust port 11 and / or the drain port 12, when the pressure is not within the preset range, the pressure is adjusted back to the preset range by increasing / decreasing the opening of the exhaust port 11 and / or the drain port 12.

[0085] The start-up separator 100 may also include a temperature monitor 83 for monitoring the temperature. For example, one or more temperature monitors 83 may be arranged at the circumferential inner wall of the upper end cap 15 of the shell 1, and by monitoring the temperature change at the upper end cap 15, when the temperature is too high, the opening of the pipe 22 is reduced, and / or the opening of the exhaust port 11 is increased, thereby avoiding accidents. In addition, one or more temperature monitors 83 may also be arranged in the lower end cap 15 to monitor the temperature change at the lower end cap 15.

[0086] It can be understood that the feedback signals generated by the above-mentioned liquid level monitor 81, pressure monitor 82, and temperature monitor 83 can be transmitted to a control console for staff operation. After receiving the feedback signals, the control console can automatically or manually adjust the opening of the connecting pipe 22 and / or the exhaust port 11 and / or the drain port 12, so as to adjust the liquid level, pressure and temperature to their respective preset ranges.

[0087] In some embodiments, reference may be made to Figure 7 The start-up separator 100 further includes a spoiler bracket 5 disposed at the drain port 12, the spoiler bracket 5 hinders the liquid from entering the drain port 12 to inhibit the liquid at the drain port 12 from forming a vortex. The start-up separator 100 further includes a top plate 6 disposed above the drain port 12, the top plate 6 and the drain port 12 are disposed opposite to each other in the longitudinal direction.

[0088] It is understood that the top plate 6 can play a preliminary isolation role to prevent the separated gas from entering the drain port 12 when the separator 100 is started. Since the gas is a high-temperature gas, it will damage the drain pipe connected to the drain port 12. When the liquid level deposited in the lower part of the chamber 13 is higher than the top plate 6, the gas can be isolated by liquid seal to prevent the gas from entering the drain port 12.

[0089] Secondly, the spoiler bracket 5 is used to reduce the rotational flow speed and momentum of the liquid, prevent the formation of vortices, make the fluid flow normally, and prevent gas backflow. At the same time, it can also prevent impurities from entering the drain port 12, ensuring the cleanliness of the pipeline connected to the drain port 12.

[0090] Alternatively, if Figure 7As shown, the spoiler bracket 5 can be a cross plate, which is vertically arranged between the top plate 6 and the drain port 12.

[0091] In some embodiments, please refer to Figure 1 The shell 1 is provided with a manhole 71 connected to the chamber 13 and a gate 72 for sealing the manhole 71 on its circumference, so as to facilitate personnel to enter the chamber 13 for maintenance. The manhole 71 can be arranged between the first separation module 2 and the wave-breaking plate 4.

[0092] In addition, the overall height of the startup separator 100 can be controlled within 45700 mm, the height of the barrel 14 of the shell 1 can be controlled within 31800 mm, the outer diameter of the shell 1 can be controlled within 9950 mm, and the inner diameter of the shell 1 can be controlled within 9000 mm. It can be seen that the startup separator 100 occupies a small space and can be used in a narrow space environment.

[0093] In summary, the startup separator 100 adopts a two-stage separation structure combining cyclone separation and corrugated plate 34 separation, which has high separation efficiency and compact structure, and can cope with environments with narrow spaces and vibration environments prone to shaking and / or vibration.

[0094] At the same time, the starting separator 100 is also provided with structures such as a wave-breaking plate 4, a spoiler bracket 5, a top plate 6 and a baffle 35 to ensure the smooth operation of the device in a vibration environment.

[0095] It can be understood that the above embodiments only express the preferred implementation modes of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the patent scope of the present invention. It should be pointed out that, for ordinary technicians in this field, the above technical features can be freely combined without departing from the concept of the present invention, and several deformations and improvements can be made, which all belong to the protection scope of the present invention. Therefore, all equivalent changes and modifications made to the scope of the claims of the present invention should belong to the coverage of the claims of the present invention.

Claims

1. A reactor startup separator, characterized in that: include: A shell (1), the shell (1) being provided with an exhaust port (11) and a drain port (12) arranged at intervals in the longitudinal direction, and a chamber (13) arranged between the exhaust port (11) and the drain port (12); the chamber (13) being communicated with the exhaust port (11) and the drain port (12) respectively; A first separation module (2), comprising an annular cavity (21) arranged in the chamber (13), and a connecting pipe (22) tangentially connected to the annular cavity (21); the connecting pipe (22) is used to receive steam, and the steam entering the annular cavity (21) performs centrifugal motion in the annular cavity (21) to achieve gas-liquid separation; A second separation module (3) is arranged in the chamber (13) and is located between the first separation module (2) and the exhaust port (11); the second separation module (3) comprises a hollow cylinder (31) and a plurality of travel channels (32) formed in the cylinder (31) for the fluid separated by the first separation module (2) to enter; Each of the travel channels (32) is a longitudinally extending curved path to hinder the passage of the liquid phase in the fluid.

2. The reactor startup separator according to claim 1, characterized in that: The first separation module (2) further comprises an outer sleeve (23) and an inner sleeve (24) arranged in the outer sleeve (23); a gap is provided between the inner sleeve (24) and the outer sleeve (23) to form the annular cavity (21); the connecting pipe (22) is arranged on the outside of the housing (1) and is in communication with the outer sleeve (23); A sealing plate (25) is also connected between the outer sleeve (23) and the inner sleeve (24) to seal the top of the annular cavity (21); the sealing plate (25) is provided with a first flow hole (251) for the fluid to pass through.

3. The reactor startup separator according to claim 2, characterized in that: The outer sleeve (23) is coaxially arranged in the chamber (13), and the circumferential outer wall of the outer sleeve (23) is in contact with the inner wall of the chamber (13); a hollow channel (241) is provided inside the inner sleeve (24), and the hollow channel (241) connects the upper space of the outer sleeve (23) and the lower space thereof; The top surface of the sealing plate (25) is an inclined surface that slopes inward from top to bottom, so as to guide the liquid above the outer sleeve (23) to the hollow channel (241); The second separation module (3) further comprises a separation plate (33) connected between the inner wall of the chamber (13) and the cylinder (31) to guide the fluid to the travel channel (32).

4. The reactor startup separator according to claim 1, characterized in that: The second separation module (3) comprises a plurality of corrugated plates (34) arranged in the cylinder (31), wherein the plurality of corrugated plates (34) are arranged at intervals along the radial direction of the shell (1) to form the travel channel (32); Each of the corrugated plates (34) comprises two longitudinally arranged straight segments (341) and at least two bent segments (342) connected between the two straight segments (341); Each of the corrugated plates (34) further comprises a horizontal segment (343) connected to the straight segment (341) adjacent to the exhaust port (11), wherein the connection between the horizontal segment (343) and the corresponding straight segment (341) forms an angle; and each of the horizontal segments (343) extends in the same direction and has a gap between adjacent corrugated plates (34).

5. The reactor startup separator according to claim 4, characterized in that: The distance between two adjacent corrugated plates (34) is between 15 mm and 25 mm; And / or, each of the bending sections (342) includes two straight line units (3421) arranged longitudinally and connected to form an angle, and an angle α is formed between the second straight line unit (3421) located at the lower side and the horizontal plane, and the angle α is between 40° and 50°.

6. The reactor startup separator according to any one of claims 1 to 5, characterized in that: There is a longitudinal distance between the first separation module (2) and the second separation module (3), and the distance is between 1800 mm and 2400 mm.

7. The reactor startup separator according to claim 1, characterized in that: A baffle (35) is also disposed above the cylinder (31), the baffle (35) being spaced apart from the cylinder (31) and being disposed opposite to the top end port of the cylinder (31) in the longitudinal direction; The gas phase separated by the second separation module (3) flows from the gap between the baffle (35) and the cylinder (31) to the exhaust port (11).

8. The reactor startup separator according to claim 1, characterized in that: The startup separator also includes at least one wave-breaking plate (4) for suppressing liquid surface sloshing, which is arranged in the chamber (13) and located between the first separation module (2) and the drain port (12).

9. The reactor startup separator according to claim 1, characterized in that: The start-up separator further comprises a flow-disturbing bracket (5) arranged at the drain port (12), wherein the flow-disturbing bracket (5) blocks liquid from entering the drain port (12) so as to suppress the formation of a vortex in the liquid at the drain port (12); The startup separator further comprises a top plate (6) arranged above the drain port (12), wherein the top plate (6) and the drain port (12) are arranged opposite to each other in the longitudinal direction.

10. The reactor startup separator according to claim 1, characterized in that: The shell (1) comprises a barrel (14), and two seals (15) connected to the top and bottom of the barrel (14); the exhaust port (11) is arranged on the upper seal (15), and the drain port (12) is arranged on the lower seal (15); at least a part of the structure of the second separation module (3) and the first separation module (2) are arranged in the barrel (14); The startup separator further comprises a plurality of liquid level monitors (81); the plurality of liquid level monitors (81) are arranged in the housing (1) below the highest position of the annular cavity (21) and are arranged at intervals in the longitudinal direction; And / or, the startup separator further comprises one or more temperature monitors (83); the temperature monitors (83) are arranged in the upper end cap (15) and / or the lower end cap (15); And / or, the startup separator further comprises at least two pressure monitors (82); the at least two pressure monitors (82) are respectively arranged on the circumferential inner walls of the exhaust port (11) and the drain port (12).

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