CN211302598U - Corrugated plate steam-water separation element - Google Patents
Corrugated plate steam-water separation element Download PDFInfo
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- CN211302598U CN211302598U CN201921352939.9U CN201921352939U CN211302598U CN 211302598 U CN211302598 U CN 211302598U CN 201921352939 U CN201921352939 U CN 201921352939U CN 211302598 U CN211302598 U CN 211302598U
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Abstract
The utility model relates to a steam dehumidification technical field specifically discloses a wave plate steam-water separation component. The element comprises a main wave plate and a plurality of hook plates, wherein the main wave plate is of a flat plate structure with two ends protruding up and down on the same plane and the middle to form a plurality of zigzag angles, and the windward side and the leeward side of the zigzag angle are correspondingly formed on the two sides of any one zigzag angle according to the incoming flow direction of steam; a hook plate is fixedly arranged on the leeward side of each bending angle, so that a drainage cavity is formed by the front hook plate, the rear hook plate and the main wave plate which are positioned at the same side of the main wave plate; the hydrophobic cavity comprises at least one closed hydrophobic cavity; the closed drainage cavity is formed by overlapping the end parts of two adjacent hook plates positioned on the same side in a staggered manner, and the direction of the overlapped opening faces to the inflow direction of steam. The element can improve the 'critical speed' of allowing steam to flow through the separator, effectively protect the liquid film and reduce the generation of secondary liquid drops.
Description
Technical Field
The invention belongs to the technical field of steam dehumidification, and particularly relates to a corrugated plate steam-water separation element.
Background
The corrugated plate is a steam-water separation core element of wet steam, is combined and arranged in a separation section of a conventional island steam-water separation reheater (hereinafter referred to as MSR) of a nuclear power station or a dryer of a pressurized water reactor steam generator, can finely separate and dehumidify the steam, prevents water erosion damage and safety accidents of the high-humidity steam to a steam turbine, and can improve the unit efficiency as the outlet humidity of the MSR separation section is smaller and the steam extraction required by the reheating section is smaller. The existing dryer of pressurized water reactor steam generator uses the wave plate structure (patent publication No. CN204619699U, published 2015.09.09), wherein, the inner and outer surface of 6 wave crests and 6 wave troughs of the wave plate 1 are respectively connected with 1 water retaining hook 2 by resistance welding, and the tail end is also provided with 1 integrally processed and formed tail water retaining hook 3. The air flow carries fine small liquid drops to move in a zigzag channel formed by the corrugated plates arranged in parallel, the liquid drops cannot move in the zigzag channel along with the vapor and impact the wall surfaces of the corrugated plates due to large inertia force of the liquid drops, the liquid drops are attached to the wall surfaces to form liquid films, and the liquid films continuously flow downwards by means of dead weight and are discharged. An important property of the corrugated plate is the "critical velocity" that allows the steam to flow through the separator, i.e. the steam velocity of the secondary droplets created by the gas stream tearing the water film. Obvious vortex is formed at the opening of a hydrophobic hook of the existing corrugated plate, a liquid film at the position is very easy to be torn by main airflow to generate secondary liquid drops, and the secondary liquid drops are re-sucked into a main flow channel; meanwhile, the drain hook protrudes to the corner of the flow channel of the corrugated plate, so that the periodic local high flow velocity can appear, the liquid film at the wave crest of the corrugated plate is very easy to tear, and the separation efficiency is sharply reduced.
Disclosure of Invention
The invention aims to provide a steam-water separation element with a corrugated plate, which can improve the 'critical speed' of steam allowed to flow through a separator, effectively protect a liquid film and reduce the generation of secondary liquid drops.
The technical scheme of the invention is as follows: a corrugated plate steam-water separation element comprises a main corrugated plate and a plurality of hook plates, wherein the main corrugated plate is of a flat plate structure, two ends of the main corrugated plate are in the same plane, the middle of the main corrugated plate is raised up and down to form a plurality of zigzag angles, and the two sides of any one zigzag angle correspondingly form a windward surface and a leeward surface of the zigzag angle according to the incoming steam flow direction; a hook plate is fixedly arranged on the leeward side of each bending angle, so that a drainage cavity is formed by the front hook plate, the rear hook plate and the main wave plate which are positioned at the same side of the main wave plate; the hydrophobic cavity comprises at least one closed hydrophobic cavity; the closed drainage cavity is formed by overlapping the end parts of two adjacent hook plates positioned on the same side in a staggered manner, and the direction of the overlapped opening faces to the inflow direction of steam.
The drainage cavity further comprises an open drainage cavity and a semi-open drainage cavity, wherein the open drainage cavity is positioned at the front end of the incoming flow of the main wave plate and is formed by the end part of the hook plate and the windward side of the zigzag angle in a surrounding manner; the semi-open type hydrophobic cavity is formed by a hook plate which is positioned at the same side of the main wave plate and has a front end part and a rear end part which are separated from each other, and a windward side of the main wave plate with a corresponding bend angle.
The main wave plate comprises an inlet straight section and an outlet straight section, the left end and the right end of the inlet straight section and the right end of the outlet straight section are on the same plane, and the inlet straight section and the outlet straight section are folded up and down 7 times to form 7 zigzag angles; the folding lines of any zigzag angle are parallel to each other in the vertical direction, and the folding plates on the two sides of each zigzag angle form a leeward side and a windward side; the 9 hook plates are arranged on the leeward surfaces of the 7 zigzag angles and the leeward surfaces of the inlet straight section and the outlet straight section in parallel.
The hook plate comprises 1 first-type hook plate, 3 second-type hook plates, 2 third-type hook plates, 1 fourth-type hook plate, 1 fifth-type hook plate and 1 tail hook plate, wherein the 3 second-type hook plates are fixedly arranged on three leeward surfaces close to a first bend angle, a second bend angle and a third bend angle of an inlet straight section respectively, and the part of the left side of the first second-type hook plate, which exceeds the first bend angle, and the main wave plate form an open drainage cavity; the right side of the first second-class hook plate and the third second-class hook plate are overlapped in a staggered mode to form a closed drainage cavity; the left side of the second hook plate and the left side of the first hook plate arranged on the lee side of the straight section of the outlet are overlapped in a staggered manner to form a closed drainage cavity; 2 three hook plates are fixedly arranged on the leeward surfaces of the fourth and fifth curved angles, wherein the left end parts of the first and second three hook plates and the right end parts of the second and third hook plates are respectively overlapped with the right end parts of the second and third hook plates in a staggered manner to form a closed drainage cavity; four types of hook plates and five types of hook plates are respectively fixed on leeward surfaces of the sixth bending angle and the seventh bending angle, and left side end parts of the four types of hook plates and the five types of hook plates are respectively opposite to right side end parts of the first three types of hook plates and the second three types of hook plates at intervals in the same plane to form 2 first semi-open drainage cavities; the tail hook plate is fixedly installed on the leeward side of the straight section of the outlet, the left end of the tail hook plate is bent and is spaced from the right end of the five types of hook plates, and a second semi-open type hydrophobic cavity is formed.
Distance blocks are arranged at two end parts of the main wave plate, and any two main wave plates are fixed through the distance blocks and keep mutually parallel and the same distance.
The distance block is a folded plate structure with a cross section in a structure like a Chinese character 'ji', straight sections on the left side and the right side of the distance block are fixedly connected with two end parts of the main wave plate through resistance welding, and a middle protruding section of the distance block is fixed with the other main wave plate to realize the fixed positioning of the two main wave plates.
The gap of the closed drainage cavity is 1.5-3 mm; the front hook plate and the rear hook plate of the closed drainage cavity are overlapped in a staggered mode to form a liquid drop inlet gap, the staggered width of the liquid drop inlet gap is 0-3 mm, and the width of the staggered gap is 0.8-2 mm.
The thickness of the hook plate is 0.8-1.2 mm; the hook plate and the welding spots of the main wave plate (8) for resistance welding on the leeward side are 100-150 mm in the uniform distance in the height direction, and 1-2 welding spots in the horizontal direction are equally distributed.
The gap between the open hydrophobic cavity and the semi-open hydrophobic cavity is 1-4 mm.
The thickness of the main wave plate is 1-1.5 mm, and the upper zigzag angle of the main wave plate is 110-120 degrees; the height of the main wave plate is 500-1500 mm, and the material is 308, 316 or 321 stainless steel; the distance between the two corrugated plates is 16-22 mm.
The invention has the following remarkable effects: compared with the prior art, the corrugated plate steam-water separation element has the following advantages that:
(1) a slightly larger gap of the drainage cavity is formed by the corrugated plate at the front end and the hook plate along the airflow direction, so that most of moisture of the drained steam can be fully collected and adapted to higher inlet humidity;
(2) the closed drainage cavity formed by the hook plate and the corrugated plate effectively protects the attached liquid film in the drainage cavity, prevents the liquid film from being entrained by airflow again to generate secondary liquid drops to enter the main airflow, and deteriorates the separation performance.
(3) The probability of capturing the attached liquid drops is improved by the increased attachment area of the plate wall forming the closed drainage cavity, and the smaller drainage cavity gap adapts to the collection of the smaller water amount at the rear end, so that the separation efficiency is higher, the medium characteristics of high steam humidity and small liquid drop particle size at the inlet of the steam-water separation reheater are met, and the dryness of the wet steam is not less than 99% after the separation.
(4) The small-diameter liquid drops are collected through an inlet gap formed by overlapping the front hook plate and the rear hook plate of the closed drainage cavity on the windward side.
(5) The width of the main airflow channel is increased and the airflow speed and the pressure drop are reduced by reducing the gap between the water drainage cavity of the rear end corrugated plate and the hook plate along the airflow direction.
Drawings
FIG. 1 is a schematic structural view of a corrugated plate steam-water separation element according to the present invention;
FIG. 2 is a structural side view of a corrugated plate steam-water separation element according to the present invention;
FIG. 3 is a schematic diagram of a main wave plate structure of a corrugated plate steam-water separation element according to the present invention;
FIG. 4 is a schematic structural view of a drainage cavity formed by a main wave plate and a hook plate in the corrugated plate steam-water separation element according to the present invention;
FIG. 5 is a schematic view of the air flow direction when the corrugated plate steam-water separation elements are arranged in parallel according to the invention;
figure 6 is a schematic front view of the distance block of figure 1;
in the figure: 4. a distance block; 5. a hook plate of the same type; 6. a second type hook plate; 7. three types of hook plates; 8. a main wave plate; 9. four types of hook plates; 10. five types of hook plates; 11. a tail hook plate; 12. an inlet straight section; 13. a leeward side; 14. the windward side; 15. a zigzag angle; 16. an outlet straight section; 17. an open drain cavity; 18. a closed drainage cavity; 19. a first semi-open drain cavity; 20. a second semi-open hydrophobic cavity.
Detailed Description
The invention is described in further detail below with reference to the figures and the embodiments.
Example 1
As shown in fig. 1 to 6, a steam-water separation element with a corrugated plate comprises a main corrugated plate 8 and 9 hook plates, wherein the main corrugated plate 8 is a flat plate structure with a plurality of zigzag angles 15, for example, the main corrugated plate 8 comprises an inlet straight section 12 and an outlet straight section 16, both ends of which are in the same plane, and the inlet straight section 12 and the outlet straight section 16 are folded up and down to form 7 zigzag angles 15, any two zigzag angles 15 are parallel to each other in the vertical direction, and each zigzag angle is 110 °; steam flows to the outlet straight section 16 from the inlet straight section 12, and a leeward side 13 and a windward side 14 are formed by folding plates at two sides of each zigzag angle 15, wherein 9 hook plates are parallelly arranged on the leeward side 13 of each zigzag angle 15 and the leeward sides of the inlet straight section 12 and the outlet straight section 16, each hook plate is in resistance welding with the leeward side of the main wave plate 8, the uniform distance of resistance welding spots in the height direction is 100mm, and the horizontal direction is 1 welding spot; the hook plate comprises 5 types of hook plates, specifically comprising 1 first-type hook plate 5, 3 second-type hook plates 6, 2 third-type hook plates 7, 1 fourth-type hook plate 9, 1 fifth-type hook plate 10 and 1 tail hook plate 11; 3 second-class hook plates 6 are fixedly installed on three leeward surfaces close to a first zigzag angle, a second zigzag angle and a third zigzag angle of the inlet straight section 12 respectively, wherein the part of the left side of the first second-class hook plate, which exceeds the first zigzag angle, forms an open drainage cavity 17 with the main wave plate 8, and the gap of the open drainage cavity 17 is 1 mm; the right side of the first second type hook plate and the third second type hook plate are overlapped in a staggered mode to form a closed drainage cavity 18, and a liquid drop inlet gap is formed in the overlapped end portion, wherein the staggered width is 0mm, and the staggered gap width is 0.8 mm; the left side of the second hook plate type II and the left side of the first hook plate type 5 arranged on the leeward surface of the outlet straight section 16 are overlapped in a staggered manner to form a closed drainage cavity 18, and a liquid drop inlet gap is formed at the overlapped end part, wherein the staggered width is 1mm, and the staggered gap width is 1 mm; 2 three-type hook plates 7 are fixedly arranged on the leeward surfaces of the fourth bend angle and the fifth bend angle, wherein the left end parts of the first three-type hook plate and the second three-type hook plate are respectively overlapped with the right end parts of the second two-type hook plate and the third two-type hook plate in a staggered manner to form a closed drainage cavity 18, and a liquid drop inlet gap is formed at the overlapped end parts, wherein the staggered width is 3mm, and the staggered gap width is 2 mm; four types of hook plates 9 and five types of hook plates 10 are respectively fixed on leeward surfaces of a sixth bending angle and a seventh bending angle, and left side end parts of the four types of hook plates 9 and the five types of hook plates 10 are opposite to right side end parts of a first three types of hook plates and a second three types of hook plates at intervals in the same plane to form 2 first semi-open drainage cavities 19, wherein the gap of the first semi-open drainage cavities 19 is 2 mm; the tail hook plate 11 is fixedly arranged on the leeward side of the outlet straight section 16, the left end of the tail hook plate 11 is bent and is spaced from the end part of the right side of the five types of hook plates 10, and a second semi-open type drainage cavity 20 is formed, wherein the gap of the second semi-open type drainage cavity is 1 mm; the distance blocks 4 are folded plate structures with the cross sections in the shape of a Chinese character 'ji', the straight sections 21 on the left side and the right side of each distance block are welded with the straight sections 12 at the inlet or the straight sections 16 at the outlet of the main wave plate 8 through resistance welding, and a plurality of distance blocks 4 are fixed on the two sides of the main wave plates 8, so that the two main wave plates 8 are parallel through the distance blocks 4 and keep the same distance, wherein the plate distance between the two main wave plates 8 is 16 mm; the main wave plate and the hook plate are both formed by pressing through an upper die and a lower die, and the main wave plate can be made of 308, 316 or 321 stainless steel; the height of whole wave plate steam-water separation component is 500 mm.
Example 2
As shown in fig. 1 to 6, a steam-water separation element with a corrugated plate comprises a main corrugated plate 8 and 9 hook plates, wherein the main corrugated plate 8 is a flat plate structure with a plurality of zigzag angles 15, for example, the main corrugated plate 8 comprises an inlet straight section 12 and an outlet straight section 16, both ends of which are in the same plane, and the inlet straight section 12 and the outlet straight section 16 are folded up and down to form 7 zigzag angles 15, any two zigzag angles 15 are parallel to each other in the vertical direction, and each zigzag angle is 120 °; steam flows to the outlet straight section 16 from the inlet straight section 12, and a leeward side 13 and a windward side 14 are formed by folding plates at two sides of each zigzag angle 15, wherein 9 hook plates are parallelly arranged on the leeward side 13 of each zigzag angle 15 and the leeward sides of the inlet straight section 12 and the outlet straight section 16, each hook plate is in resistance welding with the leeward side of the main wave plate 8, the uniform distance of resistance welding spots in the height direction is 150mm, and the horizontal direction is 2 welding spots; the hook plate comprises 5 types of hook plates, specifically comprising 1 first-type hook plate 5, 3 second-type hook plates 6, 2 third-type hook plates 7, 1 fourth-type hook plate 9, 1 fifth-type hook plate and 1 tail hook plate; 3 second-class hook plates 6 are fixedly installed on three leeward surfaces close to a first zigzag angle, a second zigzag angle and a third zigzag angle of the inlet straight section 12 respectively, wherein the part of the left side of the first second-class hook plate, which exceeds the first zigzag angle, forms an open drainage cavity 17 with the main wave plate 8, and the gap of the open drainage cavity 17 is 4 mm; the right side of the first second type hook plate and the third second type hook plate are overlapped in a staggered mode to form a closed drainage cavity 18, and a liquid drop inlet gap is formed in the overlapped end portion, wherein the staggered width is 3mm, and the staggered gap width is 1.2 mm; the left side of the second hook plate type II and the left side of the first hook plate type 5 arranged on the leeward surface of the outlet straight section 16 are overlapped in a staggered manner to form a closed drainage cavity 18, and a liquid drop inlet gap is formed at the overlapped end part, wherein the staggered width is 2mm, and the staggered gap width is 1.3 mm; 2 three-type hook plates 7 are fixedly arranged on the leeward surfaces of the fourth bend angle and the fifth bend angle, wherein the left end parts of the first three-type hook plate and the second three-type hook plate are respectively overlapped with the right end parts of the second two-type hook plate and the third two-type hook plate in a staggered manner to form a closed drainage cavity 18, and a liquid drop inlet gap is formed at the overlapped end parts, wherein the staggered width is 3mm, and the staggered gap width is 2 mm; four types of hook plates 9 and five types of hook plates 10 are respectively fixed on leeward surfaces of a sixth bending angle and a seventh bending angle, and left side end parts of the four types of hook plates 9 and the five types of hook plates 10 are opposite to right side end parts of a first three types of hook plates and a second three types of hook plates at intervals in the same plane to form 2 first semi-open drainage cavities 19, wherein the gap of the first semi-open drainage cavities 19 is 1 mm; the tail hook plate 11 is fixedly arranged on the leeward side of the outlet straight section 16, the left end of the tail hook plate 11 is bent and is spaced from the end part of the right side of the five types of hook plates 10, and a second semi-open type drainage cavity 20 is formed, wherein the gap of the second semi-open type drainage cavity is 4 mm; the distance blocks 4 are folded plate structures with the cross sections in the shape of a Chinese character 'ji', the straight sections 21 on the left side and the right side of each distance block are welded with the straight sections 12 at the inlet or the straight sections 16 at the outlet of the main wave plate 8 through resistance welding, and a plurality of distance blocks 4 are fixed on the two sides of the main wave plate 8, so that the two main wave plates 8 are parallel through the distance blocks 4 and keep the same distance, wherein the plate distance between the two main wave plates 8 is 22 mm; the main wave plate and the hook plate are both formed by pressing through an upper die and a lower die, and the main wave plate can be made of 308, 316 or 321 stainless steel; the height of the whole corrugated plate steam-water separation element is 1500 mm.
Example 3
As shown in fig. 1 to 6, a steam-water separation element with a corrugated plate comprises a main corrugated plate 8 and 9 hook plates, wherein the main corrugated plate 8 is a flat plate structure with a plurality of zigzag angles 15, for example, the main corrugated plate 8 comprises an inlet straight section 12 and an outlet straight section 16, both ends of which are in the same plane, and the inlet straight section 12 and the outlet straight section 16 are folded up and down to form 7 zigzag angles 15, any two zigzag angles 15 are parallel to each other in the vertical direction, and each zigzag angle is 115 °; steam flows to the outlet straight section 16 from the inlet straight section 12, and a leeward side 13 and a windward side 14 are formed by folding plates at two sides of each zigzag angle 15, wherein 9 hook plates are parallelly arranged on the leeward side 13 of each zigzag angle 15 and the leeward sides of the inlet straight section 12 and the outlet straight section 16, each hook plate is in resistance welding with the leeward side of the main wave plate 8, the uniform distance of resistance welding spots in the height direction is 120mm, and the horizontal direction is 2 welding spots; the hook plate comprises 5 types of hook plates, specifically comprising 1 first-type hook plate 5, 3 second-type hook plates 6, 2 third-type hook plates 7, 1 fourth-type hook plate 9, 1 fifth-type hook plate and 1 tail hook plate; 3 second-class hook plates 6 are fixedly installed on three leeward surfaces close to a first zigzag angle, a second zigzag angle and a third zigzag angle of the inlet straight section 12 respectively, wherein the part of the left side of the first second-class hook plate, which exceeds the first zigzag angle, forms an open drainage cavity 17 with the main wave plate 8, and the gap of the open drainage cavity 17 is 2 mm; the right side of the first second type hook plate and the third second type hook plate are overlapped in a staggered mode to form a closed drainage cavity 18, and a liquid drop inlet gap is formed in the overlapped end portion, wherein the staggered width is 2mm, and the staggered gap width is 2 mm; the left side of the second hook plate type II and the left side of the first hook plate type 5 arranged on the leeward surface of the outlet straight section 16 are overlapped in a staggered manner to form a closed drainage cavity 18, and a liquid drop inlet gap is formed at the overlapped end part, wherein the staggered width is 2mm, and the staggered gap width is 2 mm; 2 three-type hook plates 7 are fixedly arranged on the leeward surfaces of the fourth bend angle and the fifth bend angle, wherein the left end parts of the first three-type hook plate and the second three-type hook plate are respectively overlapped with the right end parts of the second two-type hook plate and the third two-type hook plate in a staggered manner to form a closed drainage cavity 18, and a liquid drop inlet gap is formed at the overlapped end parts, wherein the staggered width is 3mm, and the staggered gap width is 2 mm; four types of hook plates 9 and five types of hook plates 10 are respectively fixed on leeward surfaces of a sixth bending angle and a seventh bending angle, and left side end parts of the four types of hook plates 9 and the five types of hook plates 10 are opposite to right side end parts of a first three types of hook plates and a second three types of hook plates at intervals in the same plane to form 2 first semi-open drainage cavities 19, wherein the gap of the first semi-open drainage cavities 19 is 4 mm; the tail hook plate 11 is fixedly arranged on the leeward side of the outlet straight section 16, the left end of the tail hook plate 11 is bent and is spaced from the end part of the right side of the five types of hook plates 10, and a second semi-open type drainage cavity 20 is formed, wherein the gap of the second semi-open type drainage cavity is 3 mm; the distance blocks 4 are folded plate structures with the cross sections in the shape of a Chinese character 'ji', the straight sections 21 on the left side and the right side of each distance block are welded with the straight sections 12 at the inlet or the straight sections 16 at the outlet of the main wave plate 8 through resistance welding, and a plurality of distance blocks 4 are fixed on the two sides of the main wave plate 8, so that the two main wave plates 8 are parallel through the distance blocks 4 and keep the same distance, wherein the plate distance between the two main wave plates 8 is 20 mm; the main wave plate and the hook plate are both formed by pressing through an upper die and a lower die, and the main wave plate can be made of 308, 316 or 321 stainless steel; the height of whole wave plate steam-water separation component is 1000 mm.
Claims (10)
1. A wave plate steam-water separation element is characterized in that: the element comprises a main wave plate (8) and a plurality of hook plates, wherein the main wave plate (8) is of a flat plate structure with two ends protruding up and down on the same plane and the middle to form a plurality of zigzag angles (15), and the windward side and the leeward side of each zigzag angle (15) are correspondingly formed on the two sides of any one zigzag angle (15) according to the incoming flow direction of steam; a hook plate is fixedly arranged on the leeward side of each bending angle (15), so that a water drainage cavity is formed by the front hook plate, the rear hook plate and the main wave plate which are positioned at the same side of the main wave plate (8); the hydrophobic cavity comprises at least one closed hydrophobic cavity; the closed drainage cavity is formed by overlapping the end parts of two adjacent hook plates positioned on the same side in a staggered manner, and the direction of the overlapped opening faces to the inflow direction of steam.
2. A corrugated plate steam-water separation element according to claim 1, wherein: the drainage cavity further comprises an open drainage cavity and a semi-open drainage cavity, wherein the open drainage cavity is positioned at the front end of the incoming flow of the main wave plate (8) and is enclosed by the end part of the hook plate and the windward side of the zigzag angle (15); the semi-open type hydrophobic cavity is formed by a hook plate which is positioned at the same side of the main wave plate (8) and has a front end part and a rear end part which are separated from each other and the windward side of the corresponding bend angle (15) on the main wave plate (8).
3. A corrugated plate steam-water separation element according to claim 1, wherein: the main wave plate (8) comprises an inlet straight section (12) and an outlet straight section (16) with the left end and the right end on the same plane, and the inlet straight section (12) and the outlet straight section (16) are folded up and down for 7 times to form 7 zigzag angles (15); the folding lines of any one of the zigzag angles (15) are mutually parallel in the vertical direction, and the two sides of each zigzag angle (15) are folded to form a leeward side (13) and a windward side (14); the 9 hook plates are arranged on the leeward side (13) of the 7 zigzag angles (15) and the leeward sides of the inlet straight section (12) and the outlet straight section (16) in parallel.
4. A corrugated plate steam-water separation element according to claim 3, wherein: the hook plate comprises 1 first-type hook plate (5), 3 second-type hook plates (6), 2 third-type hook plates (7), 1 fourth-type hook plate (9), 1 fifth-type hook plate (10) and 1 tail hook plate (11), wherein the 3 second-type hook plates (6) are fixedly installed on three leeward surfaces close to a first bend angle, a second bend angle and a third bend angle of an inlet straight section (12), and an open drainage cavity (17) is formed by the part of the left side of the first second-type hook plate, which exceeds the first bend angle, and the main wave plate (8); the right side of the first second type hook plate and the third second type hook plate are overlapped in a staggered mode to form a closed drainage cavity (18); the left side of the second hook plate and the left side of the first hook plate (5) arranged on the lee side of the outlet straight section (16) are overlapped in a staggered way to form a closed drainage cavity (18); 2 three hook plates (7) are fixedly arranged on the leeward surfaces of the fourth bend angle and the fifth bend angle, wherein the left end parts of the first three hook plate and the second three hook plate are respectively overlapped with the right end parts of the second hook plate and the third hook plate in a staggered manner to form a closed drainage cavity; four types of hook plates (9) and five types of hook plates (10) are respectively fixed on leeward surfaces of the sixth bending angle and the seventh bending angle, and left side end parts of the four types of hook plates (9) and the five types of hook plates (10) are respectively opposite to right side end parts of the first three types of hook plates and the second three types of hook plates at intervals in the same plane to form 2 first semi-open drainage cavities (19); the tail hook plate (11) is fixedly arranged on the leeward side of the outlet straight section (16), the left end of the tail hook plate (11) is bent and is spaced from the right end of the five types of hook plates (10), and a second semi-open type hydrophobic cavity (20) is formed.
5. A corrugated plate steam-water separation element according to claim 1, wherein: distance blocks (4) are arranged at two end parts of the main wave plates (8), and any two main wave plates (8) are fixed through the distance blocks (4) and keep mutually parallel and the same distance.
6. A corrugated plate steam-water separation element according to claim 5, wherein: the distance blocks (4) are of folded plate structures with the cross sections in the shape of a Chinese character 'ji', the straight sections (21) on the left side and the right side of each distance block are fixedly connected with the two end parts of the main wave plate (8) through resistance welding, and the middle protruding section of each distance block (4) is fixed with the other main wave plate to realize the fixed positioning of the two main wave plates.
7. A corrugated plate steam-water separation element according to any one of claims 1 to 4, wherein: the gap of the closed drainage cavity is 1.5-3 mm; two hook plates are crisscross overlapping formation liquid drop entry gap around the closed drainage chamber, and its crisscross width is 0 ~ 3mm, and crisscross gap width is 0.8 ~ 2 mm.
8. A corrugated plate steam-water separation element according to any one of claims 1 to 4, wherein: the thickness of the hook plate is 0.8-1.2 mm; the hook plate and the welding spots of the main wave plate (8) for resistance welding on the leeward side are 100-150 mm in the uniform distance in the height direction, and 1-2 welding spots in the horizontal direction are equally distributed.
9. A corrugated sheet steam-water separation element according to claim 2 or 4, wherein: the gap between the open hydrophobic cavity and the semi-open hydrophobic cavity is 1-4 mm.
10. A corrugated plate steam-water separation element according to any one of claims 1 to 4, wherein: the thickness of the main wave plate (8) is 1-1.5 mm, and the upper zigzag angle (15) of the main wave plate (8) is 110-120 degrees; the height of the main wave plate (8) is 500-1500 mm, and the material is 308, 316 or 321 stainless steel; the distance between the two main wave plates (8) is 16-22 mm.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112138470A (en) * | 2020-10-15 | 2020-12-29 | 哈尔滨工程大学 | Double-hook corrugated plate steam-water separator |
| CN112403209A (en) * | 2019-08-20 | 2021-02-26 | 核动力运行研究所 | Corrugated plate steam-water separation element |
-
2019
- 2019-08-20 CN CN201921352939.9U patent/CN211302598U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112403209A (en) * | 2019-08-20 | 2021-02-26 | 核动力运行研究所 | Corrugated plate steam-water separation element |
| CN112138470A (en) * | 2020-10-15 | 2020-12-29 | 哈尔滨工程大学 | Double-hook corrugated plate steam-water separator |
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