Single-sealing-ring DTRO flow guide disc and ultrahigh-pressure membrane column

Abstract

The utility model provides a single-sealing-ring DTRO (Disk Tubular Reverse Osmosis) flow guide disc and an ultrahigh-pressure membrane column, and the single-sealing-ring DTRO flow guide disc comprises a circular disc body which comprises a front surface and a back surface; the center hole is formed in the center of the disc body; the water production flow channel is arranged along the edge of the center hole; a plurality of limiting columns, an annular sealing ring groove, a plurality of concentrated liquid flow channels, a flow guide disc body and an edge are sequentially arranged on the front face of the disc body from the center hole to the outer edge of the disc body. A plurality of small flow guide bosses are arranged on the flow guide disc body; a plurality of limiting holes, a sealing convex ring, a plurality of concentrated liquid flow channels, a flow guide disc back surface and a flow guide disc edge are sequentially arranged on the back surface of the disc body from the center hole to the outer edge of the disc body; the limiting columns and the limiting holes are located on the two sides of the same position of the front face and the back face and are the same in size, and the sealing ring grooves and the sealing protruding rings are located on the two sides of the same position of the front face and the back face and are the same in size. According to the application, a sealing design is adopted, and a lower sealing ring groove is changed into a convex ring, so that the thickness and the strength of a sealing part are increased, and the application adapts to an ultrahigh-pressure DTRO membrane column.

Description

Technical Field

[0001] The present application relates to the technical field of high-pressure reverse osmosis water treatment, and more specifically, to an ultra-high-pressure disc-tube reverse osmosis membrane element, which is a single-seal-ring DTRO guide disc and an ultra-high-pressure membrane column. Background Art

[0002] DTRO guide disc is a key component used in reverse osmosis system. DTRO guide disc is mainly used to guide and control the flow of fluid on the reverse osmosis membrane assembly to ensure uniform filtration and efficient separation on the membrane surface. It has a wide range of applications in environmental protection, chemical, pharmaceutical and other industries.

[0003] The working process of the guide plate in the reverse osmosis system can be divided into the following stages: Water inlet stage: After the reverse osmosis system is started, the sewage enters the guide plate. At this time, the guide plate begins to play a guiding role, so that the water flow is evenly distributed on the membrane surface under the guidance of the guide plate. Filtration stage: After the water flows through the guide plate and is evenly distributed, a thin film is formed on the membrane surface. The solutes, suspended matter and microorganisms in the water are blocked by the membrane to form a concentrate. Water production stage: After filtration, the clean water is discharged from the center of the reverse osmosis membrane. Concentrated water discharge stage: The filtered concentrate contains a high solute concentration and needs to be rinsed and cleaned regularly to prevent contamination of the membrane. The guide plate can still ensure the cleanliness of the membrane surface when discharging the concentrate.

[0004] At present, the guide plates used in DTRO membranes on the market all have double sealing rings. The sealing rings of the double-sealing guide plates are relatively thin, and can be used on high-pressure membrane columns of 6-9MPa. However, when used on ultra-high-pressure membrane columns exceeding 10MPa, the sealing rings are particularly prone to breakage. Once the sealing rings of the guide plates are broken, the membrane column cannot be used normally and needs to be repaired, affecting the operation of the equipment.

[0005] In addition, the pressure bearing capacity of the membrane column is limited, which reduces the operating stability of the membrane column and the DTRO guide plate. Utility Model Content

[0006] The utility model aims to solve the problems of the fracture of the double-sealed guide disc under ultra-high pressure and the poor pressure bearing capacity of the membrane column in the background technology.

[0007] The utility model further solves the technical problem of providing a guide plate which is conducive to water flow and has small water flow resistance.

[0008] In order to solve the problem of double-sealed guide disc fracture under ultra-high pressure. The utility model single-seal ring DTRO guide disc includes: a circular disc body, the disc body includes a front and a back; a center hole arranged at the center of the disc body; a water production channel arranged along the edge of the center hole; on the front of the disc body, a plurality of limit posts, annular sealing ring grooves, a plurality of concentrate flow channels, a guide disc body, and an edge are arranged in sequence from the center hole to the outer edge of the disc body; a plurality of small guide bosses are arranged on the guide disc body; on the back of the disc body, a plurality of limit holes, sealing convex rings, a plurality of concentrate flow channels, a back of the guide disc, and an edge are arranged in sequence from the center hole to the outer edge of the disc body; wherein the limit posts and the limit holes are on both sides of the same position on the front and back and have the same size, the sealing ring grooves and the sealing convex rings are on both sides of the same position on the front and back and have the same size, and the back of the guide disc is a plane; the concentrate flow channel runs through the front and back.

[0009] As a further improvement of the above-mentioned DTRO guide plate of the present application, a first protrusion is provided on the outer side of the edge, and a second protrusion is provided on the other side of the outer side of the edge circle corresponding to the first protrusion, and a third protrusion and a fourth protrusion are respectively provided on both sides of the second protrusion.

[0010] As a further improvement of the above-mentioned DTRO guide plate of the present application, the water production channel is a semicircular hole.

[0011] In order to reduce the water flow resistance in the guide plate, the utility model also makes the following improvements to the small guide boss: the small guide boss is an elliptical cylinder, and the angle between the major axis of the ellipse of the small guide boss near the center of the disk body and the y-axis gradually increases to the angle between the major axis of the ellipse of the small guide boss near the edge of the disk body and the y-axis.

[0012] As a further improvement on the arrangement of the small guide bosses on the guide plate body of the present application, multiple circles of small guide bosses are provided from near the center of the plate body to near the edge, the small guide bosses in each circle are evenly distributed, and the spacing between the small guide bosses in each circle gradually widens from near the center of the plate body to near the edge.

[0013] As a further improvement to the arrangement of the small guide bosses on the guide plate body of the present application, the line connecting the small guide bosses closest to the center of the plate body and the adjacent circle near the edge forms an arc.

[0014] As a further improvement of the guide plate body of the present application, a supporting boss is provided on the guide plate body, and the top surface of the supporting boss is flush with the top surface of the small guide boss.

[0015] As a further improvement of the above-mentioned support boss of the present application, the support boss is an elliptical cylindrical boss, and the major axis of the ellipse of the support boss is the distance between two adjacent small guide bosses, and the angular direction of the support boss is the same as the angular direction formed by the line connecting the two adjacent small guide bosses.

[0016] As a further improvement of the above-mentioned supporting boss of the present application, the supporting boss is located on the arc formed by the connecting line of the small guide bosses.

[0017] Furthermore, a concentrate flow channel protrusion is provided on the frame on the front side of the water production flow channel, and the top surface of the concentrate flow channel protrusion is flush with the top surface of the supporting boss.

[0018] The present application also provides an ultra-high pressure membrane column for installing the above-mentioned guide plate and diaphragm, including: a membrane shell; a central pull rod with a limiting member arranged at the axial center of the membrane shell, for sleeve-mounting multiple guide plates and diaphragms; a limiting portion located at both ends of the membrane shell to limit the multiple guide plates in the membrane shell; the limiting portion includes: an upper flange and a lower flange located at both ends of the membrane shell, multiple guide plates are located between the upper flange and the lower flange, and the central pull rod passes through the center of the upper flange and the center of the lower flange; a pressure ring arranged on the outside of the upper flange and the lower flange; a thrust ring mounting groove located on the upper side and the lower side of the membrane shell; multiple split thrust rings annularly installed on the thrust ring mounting groove, so that the thrust surfaces of the multiple thrust rings are evenly distributed on the outer pressure-bearing surface of the pressure ring, and the thrust ring is provided with a threaded hole; a tensioning bolt for tightening the pressure ring is provided between the thrust ring and the pressure ring.

[0019] Preferably, a countersunk hole is provided on the pressure ring, wherein the position of the countersunk hole corresponds to the position of the threaded hole on the thrust ring for supporting the tensioning bolt.

[0020] Preferably, a limiting edge is provided on the thrust ring to limit the position of the thrust ring on the thrust ring installation groove.

[0021] The beneficial effects of this application are:

[0022] 1. The position and size of the limit column and the limit hole of the present application correspond to each other, so as to facilitate the stacking of the guide plates in sequence. The position and size of the sealing ring groove and the sealing convex ring correspond to each other, and the sealing ring groove on the back is changed into a convex ring, which increases the thickness and strength of the sealing part and is suitable for ultra-high pressure DTRO membrane columns.

[0023] 2. The present application is provided with multiple circles of small flow-guiding bosses from the center of the disk to the edge, and the small flow-guiding bosses of each circle are evenly distributed, and the spacing of the small flow-guiding bosses of each circle gradually widens from the center of the disk to the edge. In other words, the spacing of the small flow-guiding bosses of each circle from the inner side of the disk to the outer side of the disk gradually widens, so that the small flow-guiding bosses form a state of scattering from the inside to the outside, which is conducive to evenly guiding the water inside to the outside, thereby promoting different water pressures of the membrane, which is conducive to improving the pressure resistance of the membrane and increasing the service life of the membrane.

[0024] 3. In the present application, the setting angle direction of the small guide boss near the center of the disk body is different from the setting angle direction of the small guide boss far from the center of the disk body, and the angle of the small guide boss gradually increases from the center to the edge. Through the change in the angle of the small guide boss, a guiding effect can be formed on the fluid on the disk body, thereby reducing the water flow resistance and improving the fluidity of the fluid on the disk body, which is beneficial to relieve the pressure of the guide disk and solve the problem that the guide disk is easy to break under ultra-high pressure conditions.

[0025] 4. In the new ultra-high pressure membrane column provided in the present application, thrust ring installation grooves for installing thrust rings are provided on the upper side and the lower side of the membrane shell, upper and lower pressure rings are provided on the outer sides of the upper flange and the lower flange, and tensioning bolts for tightening the thrust rings are provided between the thrust ring and the upper and lower pressure rings. The present application utilizes tensioning bolts to apply a clamping force to the pressure ring, so that the pressure ring and the upper and lower flanges of the membrane column are subjected to mutual force, thereby providing auxiliary force to the center pull rod of the membrane column, improving the pressure resistance of the new ultra-high pressure membrane column, realizing the miniaturized manufacturing of ultra-high pressure membrane columns, and improving the stability of the operation of ultra-high pressure membrane columns. The thrust ring and pressure ring of the present application replace the large-volume pressure plate and auxiliary pull rod, and are small in size, simple in structure, and low in cost; the improved membrane shell has good practicality and solves the problem of membrane shell movement.

[0026] In addition to the technical problems solved by the utility model described above, the technical features that constitute the technical solution, and the advantages brought by the technical features of these technical solutions, other technical problems that can be solved by the single sealing ring DTRO guide plate of the utility model, other technical features included in the technical solution, and the advantages brought by these technical features will be further described in detail in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a schematic diagram of the front axial side of a single sealing ring DTRO guide plate in an embodiment of the present application;

[0028] Figure 2 This is a schematic diagram of the back axial side of a single sealing ring DTRO guide plate in an embodiment of the present application;

[0029] Figure 3 This is a front view of a single sealing ring DTRO guide plate in an embodiment of the present application;

[0030] Figure 4 yes Figure 3 Sectional view at AA Figure 4 Partial enlarged view of points B and C in the middle;

[0031] Figure 5 This is an axial side cross-sectional view of an ultra-high pressure membrane column in an embodiment of the present application;

[0032] Figure 6 yes Figure 5The enlarged view at D is a schematic diagram of the upper part of the ultra-high pressure HPRO membrane column;

[0033] Figure 7 yes Figure 5 The enlarged view at point E is a schematic diagram of the lower part of the ultra-high pressure HPRO membrane column;

[0034] Figure 8 This is a schematic diagram of an explosion of a novel ultra-high pressure HPRO membrane column in an application example;

[0035] In the figure:

[0036] 2. Center hole;

[0037] 3. Water production channel;

[0038] 41. Limiting column; 42. Limiting hole;

[0039] 51. Sealing ring groove; 52. Sealing convex ring;

[0040] 6. Concentrate flow channel;

[0041] 71. guide plate body; 711. guide small boss; 72. back of guide plate; 712. support boss;

[0042] 8. Edge;

[0043] 91, membrane housing; 911, thrust ring mounting groove;

[0044] 92. Center tie rod;

[0045] 931, upper flange;

[0046] 932, lower flange; 9321, concentrated liquid outlet; 9322, raw liquid flow channel; 9323, clean water flow channel outlet;

[0047] 933. Tensioning bolts;

[0048] 934, press ring; 9341, countersunk hole;

[0049] 935, thrust ring; 9351, threaded hole; 9352, limit edge. DETAILED DESCRIPTION

[0050] The following is a detailed description of the embodiments of the technical solution of the present application in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present application, and are therefore only used as examples, and cannot be used to limit the scope of protection of the present application. In addition, the technical features involved in each embodiment of the utility model described below can be combined with each other as long as they do not conflict with each other.

[0051] Figure 2-Figure 3The axial side view of the single-seal-ring DTRO guide disc in the embodiment of the present application is illustrated. The single-seal-ring DTRO guide disc comprises: a circular disc body, the disc body comprising a front side and a back side; a center hole 2 arranged at the center of the disc body; a water production channel 3 arranged along the edge of the center hole 2; on the front side of the disc body, a plurality of limit posts 41, an annular seal ring groove 51, a plurality of concentrate channels 6, a guide disc body 71, and an edge 8 are arranged in sequence from the center hole 2 to the outer edge of the disc body; a plurality of guide small bosses 711 are arranged on the guide disc body 71; on the back side of the disc body, a plurality of limit holes 42, a sealing convex ring 52, a plurality of concentrate channels 6, a guide disc back side 72, and an edge 8 are arranged in sequence from the center hole 2 to the outer edge of the disc body; wherein the limit posts 41 and the limit holes 42 are on both sides of the same position on the front side and the back side and have the same size, the seal ring groove 51 and the seal convex ring 52 are on both sides of the same position on the front side and the back side and have the same size, and the guide disc back side 72 is a plane; the concentrate channel 6 runs through the front side and the back side. The water production channel 3 is a semicircular hole.

[0052] The guide plate in this embodiment is a single seal design, and the position and size of the limit column 41 and the limit hole 42 correspond to each other, so that the guide plates can be stacked in sequence. The position and size of the sealing ring groove 51 and the sealing convex ring 52 correspond to each other. The sealing ring groove on the back is changed into a convex ring, which increases the thickness and strength of the seal, and is suitable for ultra-high pressure DTRO membrane columns. In this embodiment, a plurality of small guide bosses 711 are provided on the guide plate body 71, and the back side 72 of the guide plate is flat to ensure the sealing performance and ensure that the fluid only flows on the guide plate body 71.

[0053] Based on the above embodiments, Figure 1 The guide boss 711 is an elliptical column, and the angle between the major axis of the guide boss ellipse and the y-axis gradually increases from the angle between the major axis of the guide boss ellipse and the y-axis near the center of the disk to the angle between the major axis of the guide boss ellipse and the y-axis near the edge of the disk.

[0054] In this embodiment, the angle between the major axis of the ellipse of the small guide boss near the center of the disk body and the y-axis gradually increases to the angle between the major axis of the ellipse of the small guide boss near the edge of the disk body and the y-axis. That is to say, the setting angle direction of the small guide boss near the center of the disk body is different from the setting angle direction of the small guide boss away from the center of the disk body, and the angle of the small guide boss gradually increases from the center to the edge. Through the change of the angle of the small guide boss, a guiding effect can be formed on the fluid on the disk body, thereby reducing the water flow resistance and improving the fluidity of the fluid on the disk body, which is beneficial to relieve the pressure of the guide disk and solve the problem that the guide disk is easy to break under ultra-high pressure conditions.

[0055] Furthermore, multiple circles of small flow-guiding bosses 711 are provided from the center of the disk body to the edge 8, and the small flow-guiding bosses 711 of each circle are evenly distributed, and the spacing of the small flow-guiding bosses 711 of each circle gradually widens from the center of the disk body to the edge 8. In other words, the spacing of the small flow-guiding bosses 711 of each circle from the inner side of the disk body to the outer side of the disk body gradually widens, so that the small flow-guiding bosses form a state of scattering from the inside to the outside, which is conducive to evenly guiding the water inside to the outside, thereby promoting different water pressures of the membrane, which is conducive to improving the pressure resistance of the membrane and improving the service life of the membrane.

[0056] Furthermore, in an optional embodiment, the line connecting the small guide bosses 711 which are closest to the adjacent circle of the edge 8 and are closest to the center of the disc body forms an arc. The elliptical guide bosses are placed at a certain angle, and the different angles form an arc between the small bosses from the outside to the inside, so that the water flows along the arc, which is more conducive to the water flow and reduces the water flow resistance, thereby relieving the pressure of the guide disc and helping to solve the problem that the guide disc is easy to break under ultra-high pressure conditions.

[0057] On the basis of the above embodiment, in an optional embodiment, a support boss 712 is provided on the guide plate body 71, and the top surface of the support boss 712 is flush with the top surface of the guide small boss 711. The support boss 712 is distributed on the inner and outer sides of the guide plate body 71, and the inner and outer support bosses are just located on the inner and outer sides of the diaphragm, which can play the best supporting role.

[0058] On the basis of the above embodiment, in an optional embodiment, further, the support boss 712 is an elliptical cylindrical boss, and the major axis of the ellipse of the support boss 712 is the distance between two adjacent small guide bosses, and the angular direction of the support boss 712 is the same as the angular direction formed by the line connecting the two adjacent small guide bosses.

[0059] In this embodiment, the angle direction of the support boss is consistent with the direction of the small flow-guiding boss, and the support boss is located on the arc line formed by the small flow-guiding boss, so that the flow guidance is not affected.

[0060] Furthermore, the supporting boss 712 is located on the arc formed by the connecting line of the small flow-guiding bosses 711 .

[0061] In an optional embodiment, a concentrate flow channel protrusion 61 is provided on the front frame of the water production channel 3, and the top surface of the concentrate flow channel protrusion 61 is flush with the top surface of the supporting boss 712. By setting multiple uniform flow channels, the pressure resistance is increased while ensuring the flux.

[0062] like Figures 5 to 8In one embodiment of the utility model, an ultra-high pressure membrane column is used to install the guide plate and membrane in the above embodiment, including: a membrane shell 91; a central pull rod 92 with a limiting member arranged at the axial center of the membrane shell 91, used to sleeve multiple guide plates and membranes; a limiting part located at both ends of the membrane shell 91 to limit the multiple guide plates in the membrane shell 91; the limiting part includes: an upper flange 931 and a lower flange 932 located at both ends of the membrane shell 91, multiple guide plates are located between the upper flange 931 and the lower flange 932, and the central pull rod 92 passes through the upper flange 9 31 center and the center of the lower flange 932; a pressure ring 934 arranged on the outer side of the upper flange 931 and the lower flange 932; a thrust ring mounting groove 911 located on the upper side of the membrane shell 91 and the lower side of the membrane shell; a plurality of split thrust rings 935 annularly mounted on the thrust ring mounting groove 911, so that the thrust surfaces of the plurality of thrust rings 935 are evenly distributed on the outer pressure-bearing surface of the pressure ring 934, and a thread 9351 is provided on the thrust ring 935; a tensioning bolt 936 for tightening the pressure ring is provided between the thrust ring 935 and the pressure ring 934.

[0063] like Figure 5~Figure 8 A novel overall structure of an ultra-high pressure membrane column is shown in the figure. The membrane shell in the figure is cylindrical on the inside. The thickness of the upper end of the membrane shell 91 and the thickness of the lower end of the membrane shell 91 are greater than the thickness of other areas of the membrane shell. Compared with the prior art, in the embodiment of the present application, a thrust ring mounting groove 911 is provided on the upper side and the lower side of the membrane shell, and a thrust ring 935 is installed on the thrust ring mounting groove 911. A pressure ring 934 is provided on the outer side of the upper flange 931 and the lower flange 932. A tensioning bolt 933 for tightening the pressure ring is provided between the thrust ring 935 and the pressure ring 934. The tensioning bolt 933 can also be replaced by other forms of tensioning components. For example, a component that can be limited on the thrust ring 935 and telescopic toward the pressure ring 934, a common nested telescopic top rod, etc., the two ends of the nested telescopic top rod respectively support the thrust ring 935 and the pressure ring 934, so that the pressure ring can be tightened.

[0064] In a preferred embodiment, the thrust ring 935 is provided with a threaded hole 252. If the threaded hole 252 is a common through hole, the tension bolt 933 also needs to be provided with a nut, which is provided on the inner side of the thrust ring 935. By screwing the tension bolt 933, the other end of the tension bolt 933 can be used to press the pressure ring 934, so that the pressure ring 934 can be tightened. If there is a screw in the threaded hole 252, no nut is required. By screwing the tension bolt 933, the other end of the tension bolt 933 can be used to press the pressure ring 934, so that the pressure ring 934 can be tightened.

[0065] Furthermore, in order to improve the stability of the pressing process, a countersunk hole 9341 is provided on the pressing ring 934, wherein the position of the countersunk hole 9341 corresponds to the position of the threaded hole 9351. The tensioning bolt enters the countersunk hole 9341, and the countersunk hole 9341 limits the position of the thrust ring 935 by limiting the position of the tensioning bolt 933. The tensioning bolt 933 is pressed against the bottom of the countersunk hole 9341 to bear force, so that the pressing ring 934 and the membrane column flange are subjected to force each other, thereby providing auxiliary force to the membrane column center pull rod 92.

[0066] In an optional embodiment, a limiting edge 251 is provided on the thrust ring 935, which is used to limit the position of the thrust ring on the thrust ring mounting groove 911, so that after the ultra-high pressure HPRO membrane column is installed, the limiting edge fits tightly against the inner side of the membrane shell.

[0067] Specific as Figure 5 to Figure 7 The upper part of the ultra-high pressure HPRO membrane column is schematically shown. The ultra-high pressure HPRO membrane column is fixed in the following way: after the membrane disc assembly in the membrane shell 91 passes through the center tie rod 92, the upper flange 931 passes through the center tie rod 92, the pressure ring 934 is pressed against the outer side of the upper flange 931 or the lower flange 932, and the thrust ring 935 is installed on the thrust ring mounting groove 911. After the tensioning bolt passes through the threaded hole 9351, the end of the tensioning bolt 933 is positioned in the countersunk hole 9341 on the pressure ring 934.

[0068] When the upper flange 931, lower flange 932, center tie rod 92, membrane disc assembly, pressure ring 934, thrust ring 935 and tension bolt 933 of the ultra-high pressure HPRO membrane column are installed, the tie rod sleeve is installed at the upper end of the center tie rod 92 and limited by the upper clamping nut. The clean water collection sleeve is installed at the lower end of the center tie rod 92 and limited by the pressure nut. After that, by tightening the tension bolts 933 at both ends, the pressure ring 934 is compressed and then the upper flange 931 and the lower flange 932 are compressed, and the installation of the ultra-high pressure membrane column of this application is completed.

[0069] The water production channel 3 is connected to the center hole 2, and multiple water production channels 3 are distributed at the edge of the center hole 2. The lower flange 92 is also provided with a concentrate outlet 9321 and a raw liquid channel 9322; the concentrate outlet 9321 is connected to the concentrate channel 6, and the raw liquid channel 9322 is connected to the gap between the edge of the disc and the shell.

[0070] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0071] In the description of the embodiments of the present application, the orientations or positional relationships indicated by technical terms such as "upper", "lower", "inside" and "outside" are based on the orientations or positional relationships shown in the accompanying drawings and are only for the convenience of describing the embodiments of the present application and simplifying the description. They do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the embodiments of the present application.

[0072] In the description of the embodiments of the present application, unless otherwise clearly specified and limited, technical terms such as "set", "provided with", "connected", "installed" and the like should be understood in a broad sense, for example, they can be fixedly connected, detachably connected, or integrated; they can be directly connected, or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present application can be understood according to specific circumstances.

[0073] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in the field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the utility model.

Claims

1. A single sealing ring DTRO guide plate, characterized in that: include: A circular disk body, the disk body comprising a front side and a back side; A central hole (2) is provided at the center of the disk body; A water production channel (3) arranged along the edge of the central hole (2); On the front side of the disk body, a plurality of limiting posts (41), an annular sealing ring groove (51), a plurality of concentrated liquid flow channels (6), a guide disk body (71), and an edge (8) are arranged in sequence from the central hole (2) to the outer edge of the disk body; a plurality of small guide bosses (711) are arranged on the guide disk body (71); On the back side of the disk body, a plurality of limiting holes (42), a sealing convex ring (52), a plurality of concentrated liquid flow channels (6), a back side of the guide disk (72), and an edge (8) are sequentially arranged from the central hole (2) to the outer edge of the disk body; The limiting column (41) and the limiting hole (42) are located on both sides of the same position on the front and back sides and have the same size, the sealing ring groove (51) and the sealing convex ring (52) are located on both sides of the same position on the front and back sides and have the same size, and the back side (72) of the guide plate is a plane; The concentrate flow channel (6) runs through the front and back sides.

2. The guide plate according to claim 1, characterized in that: The small flow-guiding boss (711) is an elliptical column, and the angle between the major axis of the ellipse of the small flow-guiding boss close to the center of the disk body (1) and the y-axis gradually increases to the angle between the major axis of the ellipse of the small flow-guiding boss close to the edge of the disk body and the y-axis.

3. The guide plate according to claim 2, characterized in that: A plurality of circles of small flow-guiding bosses (711) are provided from the center of the disk body to the edge (8), and the small flow-guiding bosses (711) in each circle are evenly distributed, and the spacing between the small flow-guiding bosses (711) in each circle gradually widens from the center of the disk body to the edge (8).

4. The guide plate according to claim 2 or 3, characterized in that: The line connecting the center of the disk body to the adjacent circle of the edge (8) and the closest small guide boss (711) forms an arc.

5. The guide plate according to claim 2, characterized in that: The guide plate body (71) is provided with a supporting boss (712), and the top surface of the supporting boss (712) is flush with the top surface of the small guide boss (711).

6. The guide plate according to claim 5, characterized in that: The support boss (712) is an elliptical columnar boss, and the major axis of the ellipse of the support boss (712) is the distance between two adjacent small flow-guiding bosses, and the angular direction of the support boss (712) is the same as the angular direction formed by the line connecting the two adjacent small flow-guiding bosses.

7. The guide plate according to claim 6, characterized in that: The supporting boss (712) is located on the arc formed by the connecting line of the small flow-guiding bosses (711).

8. An ultra-high pressure membrane column, characterized in that: Used for installing the guide plate as claimed in any one of claims 1 to 7, comprising: a membrane shell (91); A central pull rod (92) with a limiting member is arranged at the axial center of the membrane housing (91) and is used to sleeve a plurality of guide plates and membranes; Limiting parts located at both ends of the membrane shell (91) for limiting the plurality of guide plates and the membrane within the membrane shell (91); The limiting part comprises: an upper flange (931) and a lower flange (932) located at both ends of the membrane shell (91); a plurality of guide plates and membranes are located between the upper flange (931) and the lower flange (932); and a central pull rod (92) passes through the center of the upper flange (931) and the center of the lower flange (932); A pressure ring (934) arranged on the outer sides of the upper flange (931) and the lower flange (932); A thrust ring mounting groove (911) located on the upper side of the membrane shell (91) and the lower side of the membrane shell; A plurality of split thrust rings (935) are annularly mounted on the thrust ring mounting groove (911), so that the thrust surfaces of the plurality of thrust rings (935) are evenly distributed on the outer pressure-bearing surface of the pressure ring (934), and threaded holes (9351) are provided on the thrust rings (935); A tensioning bolt (936) for tightening the pressure ring is provided between the thrust ring (935) and the pressure ring (934).

9. The ultrahigh pressure membrane column according to claim 8, characterized in that: The pressure ring (934) is provided with a countersunk hole (9341), wherein the position of the countersunk hole (9341) corresponds to the position of a threaded hole (9351) on a thrust ring (935) for supporting a tensioning bolt (936).

10. The ultra-high pressure membrane column according to claim 8, characterized in that: A limiting edge (9352) is provided on the thrust ring (935) for limiting the position of the thrust ring (935) on the thrust ring installation groove (911).

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