CN220722233U - Rotor valve disc - Google Patents

Abstract

The utility model relates to the technical field of storage tank safety devices, and discloses a rotor wing valve disc. The rotor wing valve disc comprises a circular valve disc body, more than two annular grooves are formed on the lower surface of the valve disc body, and a plurality of rotor wings are formed along the periphery of the lower surface of the valve disc body. According to the rotor wing valve disc, more than two annular grooves are formed on the lower surface of the valve disc body, and the valve disc and the valve seat can be completely sealed by adopting the sealing structure of the valve disc configuration with the structural design, so that zero leakage is achieved; in addition, a plurality of rotor wing structures are formed on the periphery of the valve disc, and the valve disc can rotate after being opened, so that dirt accumulated above the valve disc can be spun down by centrifugal force, and self-cleaning is realized; in addition, can keep from stabilizing after the rotor valve disc opens, solve the eccentric problem of valve disc.

Description

Rotor valve disc

Technical Field

The utility model relates to the technical field of storage tank safety devices, in particular to a rotor wing valve disc.

Background

The breather valve is used as one of the safety accessories of the storage tank and has the function of reducing the evaporation loss of volatile liquid in the normal-pressure and low-pressure storage tanks. The breather valve not only can maintain the air pressure balance in the tank and ensure that the storage tank is prevented from being damaged in case of overpressure and negative pressure, but also can reduce volatilization and loss of medium in the storage tank by utilizing the pressure bearing capacity of the storage tank, and has important roles on safety and environmental protection.

Under normal working conditions, when the storage tank outputs materials outwards, the breather valve starts to suck air into the tank; when the material is filled into the storage tank, the breather valve starts to exhale the gas in the tank to the outside of the tank; the vapor pressure of the materials in the tank is increased or reduced due to climate change and the like, and the breather valve exhales vapor or inhales air or nitrogen. The sealing structures of the existing breather valves all adopt valve seats with single pointed cone structures, the sealing performance is unstable, and the problem of leakage exists when the breather valves are used for a long time; in addition, the sealing structure of the existing breather valve adopts a PTFE or FEP film as a sealing diaphragm for sealing, the durability of the material of the sealing structure and the FEP film is poor, and the problem of breather valve leakage caused by failure of self-recovery after deformation is outstanding and exceeds 2000ppm; in addition, as the service time of the breather valve is prolonged, the valve disc is increased in weight due to repeated impact of storage tank medium steam on the valve disc, and the conditions of blocking, bonding and blocking are often generated; in addition, the existing integrated structure breather valve and split type structure breather valve cavity body belongs to asymmetric design, and after the valve disc is opened, the valve disc is always in an eccentric state, and the working conditions of blocking and valve rod breakage are easy to occur.

In summary, the leakage problem exists in the existing breather valve sealing structure and materials used for a long time, the problem of unstable air flow caused by the eccentric state of the valve disc opening is solved, and once the breather valve is in an abnormal working condition, major potential safety hazards and environmental risks exist in a storage tank area, so that development of a zero-leakage self-stabilizing sealing structure and a breather valve device thereof is needed to be urgently needed, zero leakage and self-stabilization of the breather valve are realized, the potential safety hazards are solved, the requirements of safety and environmental protection are met, and personal and property safety is guaranteed.

Disclosure of Invention

The utility model aims to solve the problems that in the prior art, leakage occurs when a sealing structure of a storage tank breather valve is used for a long time, eccentricity occurs after a valve disc is opened, dirt and dust can be accumulated above the valve disc, and the like. By adopting the sealing structure of the rotor wing valve disc configuration, zero leakage of the breather valve can be realized, and the potential safety hazard is solved; and the rotor disk can spin off the dirt accumulated above the disk through centrifugal force, so that self cleaning is realized, the rotor disk can be kept self-stabilizing, and the problem of disk eccentricity is solved.

In order to achieve the above object, the present utility model provides a rotor disc comprising a circular disc body, wherein two or more annular grooves are formed on the lower surface of the disc body, and a plurality of rotors are formed along the outer circumference of the lower surface of the disc body.

Preferably, adjacent rotors are staggered with each other.

Preferably, each rotor has an arc of 0.3rad to 0.4rad.

Preferably, the gap between two adjacent rotors is 3-6mm.

Preferably, the number of said rotors is 15-20.

Preferably, the number of the annular grooves on the valve disc body is two, the annular groove on the inner ring is a class I annular groove, and the annular groove on the outer ring is a class II annular groove.

Preferably, a non-Newtonian fluid buffer ring is arranged in the class II annular groove.

Preferably, the waist lines of the I-stage annular groove and the II-stage annular groove are S-shaped.

Preferably, the center ring diameter D of the I-stage annular groove ₁ And the center ring diameter D of the class II annular groove ₂ The relation between the two is: d (D) ₂ ＝D ₁ +b, wherein b is 14-30mm.

Preferably, the width of the I-stage annular groove is 5-8mm, the width of the II-stage annular groove is 8-12mm, and the depths of the I-stage annular groove and the II-stage annular groove are 2.5-3.2mm.

Preferably, a sealing membrane and a membrane fixing circular plate are arranged on the lower surface of the valve disc body, the sealing membrane covers the annular groove, and the membrane fixing circular plate is arranged in the middle of the lower surface of the valve disc and used for compressing the sealing membrane.

Preferably, the sealing membrane comprises a polymer layer and a fluororubber layer.

Preferably, the polymer layer is made of polytetrafluoroethylene.

Preferably, the sealing membrane is annular.

According to the rotor wing valve disc, more than two annular grooves are formed on the lower surface of the valve disc body, and the valve disc and the valve seat can be completely sealed by adopting the sealing structure of the valve disc configuration with the structural design, so that zero leakage is achieved; in addition, a plurality of rotor wing structures are formed on the periphery of the valve disc, and the valve disc can rotate after being opened, so that dirt accumulated above the valve disc can be spun down by centrifugal force, and self-cleaning is realized; in addition, can keep from stabilizing after the rotor valve disc opens, solve the eccentric problem of valve disc.

In a preferred embodiment, a non-Newtonian fluid buffer ring is arranged in the annular groove of the outer ring of the valve disc, so that the sealing spike cone can be slowly contained in the static state of the valve disc, and a better sealing effect is realized.

In another preferred embodiment, a composite sealing membrane formed by a polymer layer and a fluororubber layer is adopted, so that the composite sealing membrane has the advantages of high-efficiency sealing, high elasticity and corrosion resistance, has self-recovery characteristics, solves the problem that plastic deformation of plastic materials such as FEP cannot be recovered, and can realize high-efficiency sealing in a long-life period.

Drawings

FIG. 1 is a schematic view of the installation of a rotor disc according to the present utility model;

FIG. 2 is a schematic view of the configuration of a rotor disc according to the present utility model;

FIG. 3 is a schematic view of a rotor disc according to the present utility model;

FIG. 4 is a schematic illustration of the seal membrane in a rotor disc according to the present utility model;

FIG. 5 is a schematic view of the mounting structure of the rotor disc of the present utility model at the pressure end of the breather valve;

fig. 6 is a schematic view of the mounting structure of the rotor disc of the present utility model at the vacuum end of the breather valve.

Description of the reference numerals

1. A valve hole; 2. a fastener; 3. an O-shaped sealing ring; 4. a valve seat; 5. a sealing membrane; 6. a membrane fixing circular plate; 7. a valve disc fastening screw; 8. a valve disc body; 9. a non-newtonian fluid buffer ring; 10. a valve stem; 11. a rod sleeve; 12. a valve rod positioning sleeve; 121. a first ceramic ball; 41. a low peak seal spike; 42. peak sealing spike; 51. a polymer layer; 52. a fluororubber layer; 81. a rotor; 82. a class I annular groove; 83. a class II annular groove; 15. a cross positioning ring; 16. a fastening nut; 17. an I-shaped valve rod O-shaped sealing ring; 18. an I-shaped valve rod; 151. a cross plate; 152. and a second ceramic ball.

Detailed Description

The following describes specific embodiments of the present utility model in detail with reference to the drawings. It should be understood that the detailed description and specific examples, while indicating and illustrating the utility model, are not intended to limit the utility model.

In the description of the present application, the terms "first", "second" are used for descriptive purposes only and are not to be construed as indicating relative importance or implicitly indicating the number of technical features indicated. Thus, unless otherwise indicated, features defining "first", "second" may include one or more such features either explicitly or implicitly; the meaning of "plurality" is two or more. The terms "comprises," "comprising," and any variations thereof, are intended to cover a non-exclusive inclusion, such that one or more other features, integers, steps, operations, elements, components, and/or groups thereof may be present or added.

In addition, terms of orientation or positional relationship indicated by "top", "bottom", "inner", "outer", etc. are described based on the orientation or relative positional relationship shown in the drawings, and are merely for convenience of description of the present application, and are not intended to indicate that the apparatus or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present application.

Furthermore, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; either directly or indirectly through intermediaries, or in communication with each other. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art as the case may be.

As shown in fig. 1 to 6, the rotor disc according to the present utility model comprises a circular disc body 8, and two or more annular grooves are formed on the lower surface of the disc body 8, and a plurality of rotors 81 are formed along the outer circumference of the lower surface of the disc body 8.

Herein, the "lower surface" of the valve disc body 8 refers to the lower surface of the valve disc in the mounted state, as particularly shown in fig. 1.

In the rotor disc according to the utility model, the number of rotors 81 may be 15-20, most preferably 17. The rotor 81 may be vertically disposed at the outer circumference of the valve disc body 8.

In the rotor wing valve plate, adjacent rotor wings are staggered and arranged. Specifically, as shown in fig. 2 and 3, a gap is formed between adjacent rotors, and a partial overlap is formed in the radial direction. In a specific embodiment, the clearance c between two adjacent rotors may be 3-6mm, most preferably 5mm. The portion forming the overlap between two adjacent rotors in the radial direction of the valve disc is 1-30%, preferably 5-20% of the rotors.

In the rotor disk of the present utility model, rotor 81 may have an arc k of 0.3rad to 0.4rad, preferably 0.32rad to 0.38rad, and most preferably 0.36rad.

In accordance with the present utility model, in a preferred embodiment, when the inlet diameter of the tank breather valve is D, the rotor disk has an outer diameter D ₃ =d+ (40 mm-60 mm), rotor radius R ₄ And the rotor has a height of 0.628 (0.1 d+12) mm, so that the rotor valve disc can be raised to the maximum height at 1.07 times of the opening pressure, the rotor valve disc can rotate at a speed of 20-30r/s after opening, the rotor valve disc is kept self-stabilizing, and dirt accumulated above the valve disc can be rotationally cleaned by centrifugal force.

According to the present utility model, the rotor disks are, in a preferred embodiment, provided with annular formations at the bottom or sides of the rotors for integrally connecting the rotors so as to keep the rotor disks intact. The width of the annular ring structure may be 5-10mm, most preferably 8mm.

In the present utility model, the rotor disc body 8, the rotor 81, and the annular structure for integrally connecting the rotor to each other in the rotor disc are integrally formed, and the material thereof may be a corrosion resistant material such as stainless steel or polyphenylene sulfide.

In the rotor disc according to the present utility model, as shown in fig. 1, 5 and 6, a sealing diaphragm 5 and a membrane fixing disc 6 are preferably disposed on the lower surface of the disc body 8, the sealing diaphragm 5 covers the annular groove, and the membrane fixing disc 6 is disposed in the middle of the lower surface of the disc 2 for compressing the sealing diaphragm 5.

In the rotor disc according to the present utility model, the number of the annular grooves on the disc body 8 may be two or more, specifically, for example, two, three, four or more. The greater the number of annular grooves, the better the sealing effect, but the higher the production costs of the valve disk body 8. Therefore, in order to balance the sealing effect and the production costs, the number of annular grooves on the valve disc body 8 is preferably two (as shown in fig. 1, 2, 3, 5 and 6). The annular groove positioned on the inner ring is a class I annular groove 82, and the annular groove positioned on the outer ring is a class II annular groove 83.

In the rotor disc of the present utility model, a non-newtonian fluid cushion ring 9 is preferably disposed within the class II annular groove 83. Through the structure, the non-Newtonian fluid buffer ring 9 has the characteristics of micro-touch slow depression and strong touch rapid rebound, can well slowly contain the sealing pointed cone in the rotor wing valve disc standing state, protects the sealing diaphragm 5 when the seating impact force is large after the valve disc is opened, and reduces impact damage. In a preferred embodiment, the non-newtonian fluid cushion ring 9 is made of polyurethane elastomer.

In the rotor disc according to the present utility model, the waist lines of the class I annular groove 82 and the class II annular groove 83 are preferably S-shaped. By means of the structural design, the pressure of the outer contour of the annular groove on the sealing diaphragm when the sealing diaphragm 5 is sunken can be reduced, and abrasion of the sealing diaphragm is reduced. In a more preferred embodiment, the waist line upper and lower radians of the class I annular groove 82 and the class II annular groove 83 are 1.1-1.2rad, and most preferably 1.15rad.

In the rotor disk of the present utility model, the center ring diameter D of the class I annular groove 82 is preferably ₁ And the center ring diameter D of the class II annular groove 83 ₂ The relation between the two is: d (D) ₂ ＝D ₁ +b, where b is 14-30mm, preferably 16-26mm, more preferably 18-24mm, most preferably 20mm. In a more preferred embodiment, when the inlet of the tank breathes the valveWith a diameter D, the center ring diameter D of the I-stage annular groove 82 ₁ ＝D。

In the rotor disc of the present utility model, the class I annular groove 82 preferably has a width of 5-8mm, most preferably 6mm.

In the rotor disc of the present utility model, the class I annular groove 82 preferably has a depth of 2.5-3.2mm, most preferably 2.8mm.

In the rotor disc according to the utility model, the class II annular groove 83 preferably has a width of 8-12mm, most preferably 10mm.

In the rotor disc according to the utility model, the depth of the class II annular groove 83 is preferably 2.5-3.2mm, most preferably 2.8mm.

In the rotor disc according to the present utility model, the sealing membrane 5 preferably comprises a polymer layer 51 and a fluororubber layer 52, as shown in fig. 4. The material of the polymer layer 51 is preferably polytetrafluoroethylene. In a more preferred embodiment, the sealing membrane 5 is formed by vulcanizing and gluing a polytetrafluoroethylene membrane and a fluororubber membrane. In this embodiment, the sealing membrane 5 has the dual advantages of low leakage rate of the polytetrafluoroethylene membrane and high elasticity of the fluororubber membrane, thereby being more advantageous in obtaining a zero-leakage sealing effect.

In the rotor disc according to the utility model, the sealing membrane 5 preferably has a thickness of 0.5-1.1mm, most preferably 0.9mm.

In the rotor disc according to the present utility model, the ratio of the thickness of the polymer layer 51 to the thickness of the fluororubber layer 52 in the sealing membrane 5 is preferably 1:1-4, specifically, for example, 1:1, 1:1.2, 1:1.4, 1:1.5, 1:1.6, 1:1.8, 1:2, 1:2.2, 1:2.4, 1:2.5, 1:2.6, 1:2.8, 1:3, 1:3.2, 1:3.4, 1:3.6, 1:3.8 or 1:4 may be mentioned.

In the rotor disc according to the utility model, the sealing membrane 5 preferably has a hardness of HR50-HR75, most preferably HR60.

In the rotor disc according to the present utility model, the sealing membrane 5 is preferably annular. The dimensioning of the annular sealing membrane ensures that it can cover all annular grooves on the valve disk body 8.

In the rotor disc according to the present utility model, the coverage of the sealing membrane 5 is not particularly limited as long as it can completely cover all the annular grooves on the disc 8. Preferably, the coverage of the sealing diaphragm 5 is such that when the sealing spike on the valve seat fully enters the annular groove on the valve disc, the outer and inner circumferences of the sealing diaphragm 5 are still able to fully cover the outermost and innermost annular grooves, respectively, on the valve disc. In some embodiments, when the sealing diaphragm 5 is annular, the peripheral diameter of the sealing diaphragm is 1-30mm, preferably 5-20mm, greater than the outer diameter of the outermost annular groove on the valve disc 8; the inner peripheral diameter of the sealing diaphragm is 1-30mm, preferably 5-20mm smaller than the inner diameter of the innermost annular groove on the valve disc 8.

In the utility model, in order to form a sealing structure for the breather valve, the rotor wing valve disc is correspondingly provided with a valve seat 4, the valve seat 4 is provided with more than two sealing sharp cones, the top of each sealing sharp cone faces upwards, and the sealing sharp cones on the valve seat 4 and the annular grooves on the valve disc are correspondingly arranged. Preferably, the valve seat 4 has two sealing tapers, the sealing taper corresponding to the level I annular groove 82 is a low peak sealing taper 41, the sealing taper corresponding to the level II annular groove 83 is a peak sealing taper 42, and the height of the peak sealing taper 42 is greater than the height of the low peak sealing taper 41. Still further preferably, the height h of the low peak seal tip 41 ₁ Height h of the peak seal tip 42 ₂ The relation between the two is: h is a ₂ ＝h ₁ +a, where a is 0.1 to 0.8mm, preferably 0.3 to 0.6mm, more preferably 0.4 to 0.5mm. In some embodiments, the height h of the low peak seal tip 41 ₁ 2.8-3.2mm, most preferably 2.8mm; height h of the peak seal tip cone 42 ₂ 3-3.6mm, most preferably 3.2mm.

In the present utility model, the inside angle of the peak seal tip 41 and the peak seal tip 42 is preferably 45 to 75 °, more preferably 50 to 70 °, and most preferably 60 °.

In the present utility model, it is preferable that the tapers of the low peak seal taper 41 and the peak seal taper 42 are subjected to an arc treatment such that the arc diameter of the tapers is 0.1 to 0.3mm.

In the present utility model, the valve seat 4 is preferably an integrally formed structure, and the height of the valve seat 4 is designed to be 30-40mm, preferably 32-38mm, and most preferably 35mm. Through the valve seat structural design, the strength can be kept, the deformation is controlled to be smaller than 0.1%, and the sealing structure can be ensured to obtain a good sealing effect.

In the utility model, the valve seat 4 is arranged on a valve hole 1 of the breather valve, specifically, an O-shaped sealing ring 3 is arranged between the upper end of the valve hole 1 and the valve seat 4, and the valve seat is fixed by a fastener 2 (such as a fastening screw). According to the valve seat mounting mode, the defect of the existing valve seat mounting basic mode (such as liquid nitrogen cold mounting or metal glue sealing) can be overcome, specifically, slight deformation exists after the liquid nitrogen cold mounting is completed, the metal glue sealing has the problem of sealing leakage, and the liquid nitrogen cold mounting and the metal glue sealing both have the problem of being incapable of disassembling and repairing.

In the present utility model, the sealing structure formed by the rotor disc and the valve seat 4 may be mounted at the pressure end and/or the vacuum end of the breather valve. When the sealing structure is arranged at the pressure end of the breather valve, as shown in fig. 3, the valve seat 4 is arranged on the valve hole of the pressure end, an O-shaped sealing ring 3 is arranged between the upper end of the valve hole of the pressure end and the valve seat 4, and the valve seat 4 is fixed on the valve hole of the pressure end through a plurality of (e.g. 4) fasteners (e.g. fastening screws); the upper surface of the valve disc is provided with a first telescopic valve rod structure, the upper end of the first telescopic valve rod structure is fixed at the top of the breather valve body, and the lower end of the first telescopic valve rod structure is connected (such as screwed) to the upper surface of the valve disc; the sealing diaphragm 5 is disposed on the lower surface of the valve disc and is pressed by a diaphragm fixing disk 6 and a valve disc fastening screw 7. Preferably, the first telescopic valve rod structure comprises a valve rod 10, a rod sleeve 11 and a valve rod positioning sleeve 12, the rod sleeve 11 is arranged outside the valve rod 10, a plurality of rows (such as 4 rows) of first ceramic balls 121 are arranged inside the valve rod positioning sleeve 12, and the valve rod 10 provided with a valve sleeve can move up and down along the ceramic balls in the valve rod positioning sleeve 12. It is further preferred that the central axes of the valve stem locating sleeve 12, valve disc and the pressure end valve bore overlap. Still further preferably, the top of the stem locating sleeve 12 is secured by a securing cross.

When the sealing structure is arranged at the vacuum end of the breather valve, as shown in fig. 4, the valve seat 4 is arranged on the valve hole of the vacuum end, an O-shaped sealing ring 3 is arranged between the upper end of the valve hole of the vacuum end and the valve seat 4, and the valve seat 4 is fixed on the valve hole of the vacuum end through a plurality of (e.g. 4) fasteners (e.g. fastening screws); the valve disc is provided with the scalable valve rod structure of second below, scalable valve rod structure of second includes I-shaped valve rod 18 and cross retainer 15, I-shaped valve rod 18 runs through cross retainer 15, just the upper end of I-shaped valve rod 18 is fixed on the valve disc, cross retainer 15 passes through cross disc 151 to be fixed on vacuum end valve opening (specifically through the fastener together fixed cross disc 151, disk seat 4 and vacuum end valve opening), a plurality of rows (e.g. 4 rows) of second ceramic balls 152 have been arranged to the inside of cross retainer 15, I-shaped valve rod 18 can be followed ceramic balls in the cross retainer 15 reciprocates. Further preferably, the i-shaped valve rod 18 sequentially penetrates through the valve disc, the fixed film circular plate 6 and the cross positioning ring 15 from top to bottom, and an i-shaped valve rod O-shaped sealing ring 17 is arranged between the upper end of the i-shaped valve rod 18 and the valve disc; on the lower surface of the valve disc, the membrane-fixing circular plate 6 is screwed by a fastening nut 16. Still more preferably, the central axes of the cross retainer 15, the valve disc and the vacuum port valve hole overlap.

In some embodiments, the rotor disc comprises a circular disc body 8, more than two annular grooves are formed on the lower surface of the disc body 8, and 15-20 rotors 81 are formed along the periphery of the lower surface of the disc body 8, and adjacent rotors are staggered with each other.

In other embodiments, the rotor disc comprises a circular disc body 8, more than two annular grooves are formed on the lower surface of the disc body 8, 15-20 rotors 81 are formed along the periphery of the lower surface of the disc body 8, adjacent rotors are staggered and arranged mutually, the clearance c between two adjacent rotors is 3-6mm, in the radial direction of the disc, the overlapped part between two adjacent rotors accounts for 1-30% of the rotors, and the radian k of the rotors 81 is 0.3rad to 0.4rad.

In other embodiments, the rotor disc comprises a circular disc body 8, more than two annular grooves are formed on the lower surface of the disc body 8, and 15-20 rotors 81 are formed along the periphery of the lower surface of the disc body 8, and the bottoms or the sides of the rotors are provided with circular ring structures for connecting the rotors into a whole, and the width of the circular ring structures is 5-10mm; the adjacent rotors are staggered, the clearance c between the two adjacent rotors is 3-6mm, the overlapped part between the two adjacent rotors in the radial direction of the valve disc accounts for 1-30% of the rotors, and the radian k of the rotor 81 is 0.3rad to 0.4rad.

In other embodiments, the rotor disc comprises a circular disc body 8, more than two annular grooves are formed on the lower surface of the disc body 8, and 15-20 rotors 81 are formed along the periphery of the lower surface of the disc body 8, and the bottoms or the sides of the rotors are provided with circular ring structures for connecting the rotors into a whole, and the width of the circular ring structures is 5-10mm; the adjacent rotors are staggered, the clearance c between the two adjacent rotors is 3-6mm, the overlapped part formed between the two adjacent rotors accounts for 1-30% of the rotors in the radial direction of the valve disc, and the radian k of the rotor 81 is 0.3rad to 0.4rad; the valve disc body 8, the rotor 81 and the circular ring structure are integrally formed, and are made of corrosion-resistant materials such as stainless steel or polyphenylene sulfide.

In other embodiments, the rotor disc comprises a circular disc body 8, more than two annular grooves are formed on the lower surface of the disc body 8, a plurality of rotors 81 are formed along the periphery of the lower surface of the disc body 8, a sealing membrane 5 and a membrane fixing disc 6 are arranged on the lower surface of the disc body 8, the sealing membrane 5 covers the annular grooves, and the membrane fixing disc 6 is arranged in the middle of the lower surface of the disc 2 and is used for compressing the sealing membrane 5.

In other embodiments, the rotor disc comprises a circular disc body 8, two annular grooves are formed on the lower surface of the disc body 8, the annular groove on the inner ring is a class I annular groove 82, the annular groove on the outer ring is a class II annular groove 83, and a non-newtonian fluid buffer ring 9 is arranged in the class II annular groove 83; a plurality of rotary wings 81 are formed along the outer circumference of the lower surface of the valve disc body 8; the lower surface of the valve disc body 8 is provided with a sealing membrane 5 and a membrane fixing circular plate 6, the sealing membrane 5 covers the annular groove, and the membrane fixing circular plate 6 is arranged in the middle of the lower surface of the valve disc 2 and used for compressing the sealing membrane 5.

In other embodiments, the rotor disc includes a circular disc body 8, two annular grooves are formed on the lower surface of the disc body 8, the annular groove located in the inner ring is a class I annular groove 82, the annular groove located in the outer ring is a class II annular groove 83, a non-newtonian fluid buffer ring 9 is disposed in the class II annular groove 83, and the material of the non-newtonian fluid buffer ring 9 is polyurethane elastomer; a plurality of rotary wings 81 are formed along the outer circumference of the lower surface of the valve disc body 8; a sealing membrane 5 and a membrane fixing circular plate 6 are arranged on the lower surface of the valve disc body 8, the sealing membrane 5 covers the annular groove, and the membrane fixing circular plate 6 is arranged in the middle of the lower surface of the valve disc 2 and used for pressing the sealing membrane 5; wherein, the waist lines of the I-stage annular groove 82 and the II-stage annular groove 83 are S-shaped, and the center ring diameter D of the I-stage annular groove 82 ₁ And the center ring diameter D of the class II annular groove 83 ₂ The relation between the two is: d (D) ₂ ＝D ₁ +b, wherein b is 14-30mm.

In other embodiments, the rotor disc comprises a circular disc body 8, two annular grooves are formed on the lower surface of the disc body 8, the annular groove on the inner ring is a class I annular groove 82, the annular groove on the outer ring is a class II annular groove 83, and the class II annular grooveThe non-Newtonian fluid buffer ring 9 is arranged in the valve body 83, and the non-Newtonian fluid buffer ring 9 is made of polyurethane elastomer; a plurality of rotary wings 81 are formed along the outer circumference of the lower surface of the valve disc body 8; a sealing membrane 5 and a membrane fixing circular plate 6 are arranged on the lower surface of the valve disc body 8, the sealing membrane 5 covers the annular groove, and the membrane fixing circular plate 6 is arranged in the middle of the lower surface of the valve disc 2 and used for pressing the sealing membrane 5; the sealing membrane 5 comprises a polymer layer 51 and a fluororubber layer 52; wherein, the waist lines of the I-stage annular groove 82 and the II-stage annular groove 83 are S-shaped, and the center ring diameter D of the I-stage annular groove 82 ₁ And the center ring diameter D of the class II annular groove 83 ₂ The relation between the two is: d (D) ₂ ＝D ₁ +b, wherein b is 14-30mm.

In other embodiments, the rotor disc includes a circular disc body 8, two annular grooves are formed on the lower surface of the disc body 8, the annular groove located in the inner ring is a class I annular groove 82, the annular groove located in the outer ring is a class II annular groove 83, a non-newtonian fluid buffer ring 9 is disposed in the class II annular groove 83, and the material of the non-newtonian fluid buffer ring 9 is polyurethane elastomer; a plurality of rotary wings 81 are formed along the outer circumference of the lower surface of the valve disc body 8; a sealing membrane 5 and a membrane fixing circular plate 6 are arranged on the lower surface of the valve disc body 8, the sealing membrane 5 covers the annular groove, and the membrane fixing circular plate 6 is arranged in the middle of the lower surface of the valve disc 2 and used for pressing the sealing membrane 5; the sealing membrane 5 is annular and is formed by vulcanizing and gluing a polytetrafluoroethylene membrane and a fluororubber membrane, the thickness of the sealing membrane 5 is 0.5-1.1mm, and the hardness is HR50-HR75; the waist lines of the I-stage annular groove 82 and the II-stage annular groove 83 are S-shaped, and the upper and lower radians of the waist lines of the I-stage annular groove 82 and the II-stage annular groove 83 are 1.1-1.2rad; center ring diameter D of the class I annular groove 82 ₁ And the center ring diameter D of the class II annular groove 83 ₂ The relation between the two is: d (D) ₂ ＝D ₁ +b, wherein b is 14-30mm; the width of the I-stage annular groove 82 is 5-8mm, and the depth is 2.5-3.2mm; width of the class II annular groove 838-12mm and 2.5-3.2mm deep.

In other embodiments, the rotor disc includes a circular disc body 8, two annular grooves are formed on the lower surface of the disc body 8, the annular groove located in the inner ring is a class I annular groove 82, the annular groove located in the outer ring is a class II annular groove 83, a non-newtonian fluid buffer ring 9 is disposed in the class II annular groove 83, and the material of the non-newtonian fluid buffer ring 9 is polyurethane elastomer; a sealing membrane 5 and a membrane fixing circular plate 6 are arranged on the lower surface of the valve disc body 8, the sealing membrane 5 covers the annular groove, and the membrane fixing circular plate 6 is arranged in the middle of the lower surface of the valve disc 2 and used for pressing the sealing membrane 5; the sealing membrane 5 is annular and is formed by vulcanizing and gluing a polytetrafluoroethylene membrane and a fluororubber membrane, the thickness of the sealing membrane 5 is 0.5-1.1mm, and the hardness is HR50-HR75; the waist lines of the I-stage annular groove 82 and the II-stage annular groove 83 are S-shaped, and the upper and lower radians of the waist lines of the I-stage annular groove 82 and the II-stage annular groove 83 are 1.1-1.2rad; center ring diameter D of the class I annular groove 82 ₁ And the center ring diameter D of the class II annular groove 83 ₂ The relation between the two is: d (D) ₂ ＝D ₁ +b, wherein b is 14-30mm; the width of the I-stage annular groove 82 is 5-8mm, and the depth is 2.5-3.2mm; the width of the II-stage annular groove 83 is 8-12mm, and the depth is 2.5-3.2mm; further, 15-20 rotary wings 81 are formed along the outer circumference of the lower surface of the valve disc body 8, and the bottom or side portions of the rotary wings are provided with a ring structure for connecting the rotary wings into one body, the width of the ring structure being 5-10mm; the adjacent rotors are staggered, the clearance c between the two adjacent rotors is 3-6mm, the overlapped part formed between the two adjacent rotors accounts for 1-30% of the rotors in the radial direction of the valve disc, and the radian k of the rotor 81 is 0.3rad to 0.4rad; the valve disc body 8, the rotor 81 and the circular ring structure are integrally formed, and are made of corrosion-resistant materials such as stainless steel or polyphenylene sulfide.

The rotor disc according to the utility model is further illustrated by the following examples. The embodiment is implemented on the premise of the technical scheme of the utility model, and detailed implementation modes and specific operation processes are given, but the protection scope of the utility model is not limited to the following embodiment.

Example 1

As shown in fig. 1-4, the rotor wing valve disc comprises a circular valve disc body 8, two annular grooves are formed on the lower surface of the valve disc body 8, the annular groove positioned in the inner ring is a class I annular groove 82, the annular groove positioned in the outer ring is a class II annular groove 83, a non-newtonian fluid buffer ring 9 is arranged in the class II annular groove 83, and the non-newtonian fluid buffer ring 9 is made of polyurethane elastomer; a sealing membrane 5 and a membrane fixing circular plate 6 are arranged on the lower surface of the valve disc body 8, the sealing membrane 5 covers the annular groove, and the membrane fixing circular plate 6 is arranged in the middle of the lower surface of the valve disc 2 and used for pressing the sealing membrane 5; the sealing membrane 5 is annular and is formed by vulcanizing and gluing a polytetrafluoroethylene membrane and a fluororubber membrane, the thickness of the sealing membrane 5 is 0.9mm, and the hardness is HR60; the waist lines of the I-stage annular groove 82 and the II-stage annular groove 83 are S-shaped, and the upper and lower radians of the waist lines of the I-stage annular groove 82 and the II-stage annular groove 83 are 1.15rad; center ring diameter D of the class I annular groove 82 ₁ And the center ring diameter D of the class II annular groove 83 ₂ The relation between the two is: d (D) ₂ ＝D ₁ +b, wherein b is 20mm; the I-stage annular groove 82 has a width of 6mm and a depth of 2.8mm; the width of the II-stage annular groove 83 is 10mm, and the depth is 2.8mm; further, 17 rotary wings 81 are vertically formed along the outer circumference of the lower surface of the valve disc body 8, and the bottom of the rotary wings is provided with a circular ring structure for integrally connecting the rotary wings, the circular ring structure having a width of 8mm; the adjacent rotary wings are staggered, the clearance c between the two adjacent rotary wings is 5mm, and the radian k of the rotary wing 81 is 0.36rad; the valve disc body 8, the rotor wing 81 and the circular ring structure are integrally formed by stainless steel.

When the diameter of the air inlet of the storage tank breather valve is D, the outer diameter D of the rotor wing valve disc ₃ =d+50 mm, rotor radius R ₄ =0.2d, rotor height 0.628 (0.1×d+12) mm, center ring of the class I annular groove 82Diameter D ₁ ＝D。

The rotor disc of this embodiment is correspondingly provided with a valve seat of the following structure: the valve seat 4 is provided with two sealing spikes, the top of the sealing spikes is upward, the sealing spikes on the valve seat 4 and the annular grooves on the valve disc 8 are correspondingly configured, the sealing spikes corresponding to the I-stage annular groove 82 are low-peak sealing spikes 41, the sealing spikes corresponding to the II-stage annular groove 83 are peak sealing spikes 42, the height of the peak sealing spikes 42 is greater than that of the low-peak sealing spikes 41, and the relationship between the height h1 of the low-peak sealing spikes 41 and the height h2 of the peak sealing spikes 42 is that: h2 =h1+a, where a is 0.4mm, the height of the valve seat 4 is 35mm, the inside angle of the peak seal taper 41 and the peak seal taper 42 is 60 °, and the tapers of the peak seal taper 41 and the peak seal taper 42 are subjected to arc treatment so that the arc diameter of the taper is 0.2mm.

Example 2

As shown in fig. 1-4, the rotor wing valve disc comprises a circular valve disc body 8, two annular grooves are formed on the lower surface of the valve disc body 8, the annular groove positioned in the inner ring is a class I annular groove 82, the annular groove positioned in the outer ring is a class II annular groove 83, a non-newtonian fluid buffer ring 9 is arranged in the class II annular groove 83, and the non-newtonian fluid buffer ring 9 is made of polyurethane elastomer; a sealing membrane 5 and a membrane fixing circular plate 6 are arranged on the lower surface of the valve disc body 8, the sealing membrane 5 covers the annular groove, and the membrane fixing circular plate 6 is arranged in the middle of the lower surface of the valve disc 2 and used for pressing the sealing membrane 5; the sealing membrane 5 is annular and is formed by vulcanizing and gluing a polytetrafluoroethylene membrane and a fluororubber membrane, the thickness of the sealing membrane 5 is 0.5mm, and the hardness is HR50; the waist lines of the I-stage annular groove 82 and the II-stage annular groove 83 are S-shaped, and the upper and lower radians of the waist lines of the I-stage annular groove 82 and the II-stage annular groove 83 are 1.1rad; center ring diameter D of the class I annular groove 82 ₁ And the center ring diameter D of the class II annular groove 83 ₂ The relation between the two is: d (D) ₂ ＝D ₁ +b, where b18mm; the I-stage annular groove 82 has a width of 5mm and a depth of 2.5mm; the width of the II-stage annular groove 83 is 8mm, and the depth is 2.5mm; further, 17 rotary wings 81 are vertically formed along the outer circumference of the lower surface of the valve disc body 8, and the bottom of the rotary wings is provided with a circular ring structure for integrally connecting the rotary wings, the circular ring structure having a width of 5mm; the adjacent rotary wings are staggered, the clearance c between the two adjacent rotary wings is 3mm, and the radian k of the rotary wing 81 is 0.38rad; the valve disc body 8, the rotor wing 81 and the circular ring structure are integrally formed by stainless steel.

When the diameter of the air inlet of the storage tank breather valve is D, the outer diameter D of the rotor wing valve disc ₃ =d+50 mm, rotor radius R ₄ =0.2D, rotor height 0.628 (0.1×d+12) mm, center ring diameter D of the class I annular groove 82 ₁ ＝D。

The rotor disc of this embodiment is correspondingly provided with a valve seat of the following structure: the valve seat 4 is provided with two sealing spikes, the top of the sealing spikes is upward, the sealing spikes on the valve seat 4 and the annular grooves on the valve disc 8 are correspondingly configured, the sealing spikes corresponding to the I-stage annular groove 82 are low-peak sealing spikes 41, the sealing spikes corresponding to the II-stage annular groove 83 are peak sealing spikes 42, the height of the peak sealing spikes 42 is greater than that of the low-peak sealing spikes 41, and the relationship between the height h1 of the low-peak sealing spikes 41 and the height h2 of the peak sealing spikes 42 is that: h2 =h1+a, where a is 0.5mm, the height of the valve seat 4 is 32mm, the inside angle of the peak seal taper 41 and the peak seal taper 42 is 50 °, and the tapers of the peak seal taper 41 and the peak seal taper 42 are subjected to arc treatment so that the arc diameter of the taper is 0.1mm.

Example 3

As shown in fig. 1-4, the rotor wing valve comprises a circular valve disc body 8, two annular grooves are formed on the lower surface of the valve disc body 8, the annular groove on the inner ring is a class I annular groove 82, the annular groove on the outer ring is a class II annular groove 83, a non-newton fluid buffer ring 9 is arranged in the class II annular groove 83, and the non-newton fluid buffer ring is arranged in the non-newton fluid buffer ringThe material of the fluid buffer ring 9 is polyurethane elastomer; a sealing membrane 5 and a membrane fixing circular plate 6 are arranged on the lower surface of the valve disc body 8, the sealing membrane 5 covers the annular groove, and the membrane fixing circular plate 6 is arranged in the middle of the lower surface of the valve disc 2 and used for pressing the sealing membrane 5; the sealing membrane 5 is annular and is formed by vulcanizing and gluing a polytetrafluoroethylene membrane and a fluororubber membrane, the thickness of the sealing membrane 5 is 1.1mm, and the hardness is HR70; the waist lines of the I-stage annular groove 82 and the II-stage annular groove 83 are S-shaped, and the upper and lower radians of the waist lines of the I-stage annular groove 82 and the II-stage annular groove 83 are 1.3rad; center ring diameter D of the class I annular groove 82 ₁ And the center ring diameter D of the class II annular groove 83 ₂ The relation between the two is: d (D) ₂ ＝D ₁ +b, wherein b is 24mm; the I-stage annular groove 82 has a width of 8mm and a depth of 3.2mm; the width of the II-stage annular groove 83 is 12mm, and the depth is 3.2mm; further, 17 rotary wings 81 are vertically formed along the outer circumference of the lower surface of the valve disc body 8, and the bottom of the rotary wings is provided with a circular ring structure for integrally connecting the rotary wings, the circular ring structure having a width of 10mm; the adjacent rotary wings are staggered, the clearance c between the two adjacent rotary wings is 6mm, and the radian k of the rotary wing 81 is 0.32rad; the valve disc body 8, the rotor wing 81 and the circular ring structure are integrally formed by stainless steel.

When the diameter of the air inlet of the storage tank breather valve is D, the outer diameter D of the rotor wing valve disc ₃ =d+50 mm, rotor radius R ₄ =0.2D, rotor height 0.628 (0.1×d+12) mm, center ring diameter D of the class I annular groove 82 ₁ ＝D。

The rotor disc of this embodiment is correspondingly provided with a valve seat of the following structure: the valve seat 4 is provided with two sealing spikes, the top of the sealing spikes is upward, the sealing spikes on the valve seat 4 and the annular grooves on the valve disc 8 are correspondingly configured, the sealing spikes corresponding to the I-stage annular groove 82 are low-peak sealing spikes 41, the sealing spikes corresponding to the II-stage annular groove 83 are peak sealing spikes 42, the height of the peak sealing spikes 42 is greater than that of the low-peak sealing spikes 41, and the relationship between the height h1 of the low-peak sealing spikes 41 and the height h2 of the peak sealing spikes 42 is that: h2 =h1+a, where a is 0.4mm, the height of the valve seat 4 is 38mm, the inside angle of the peak seal taper 41 and the peak seal taper 42 is 70 °, and the tapers of the peak seal taper 41 and the peak seal taper 42 are subjected to arc treatment so that the arc diameter of the taper is 0.3mm.

The rotor wing valve disc and the valve seat in the embodiment are configured into a sealing structure, and the low-peak sealing pointed cone extrudes the composite sealing membrane in the I-stage annular groove of the valve disc to form primary seal in the static state of the valve disc; the peak seal tip cone extrudes the composite seal membrane in the class II annular groove of the valve disc, and the non-Newtonian fluid cushion ring slowly contains the peak seal tip cone to form a secondary seal. Therefore, the sealing structure can realize complete sealing and achieve the sealing effect of zero leakage.

And, rotor valve disc can rise to maximum height when 1.07 times opening pressure, and rotor valve disc can rotate with the speed of 20-30r/s simultaneously after opening, keeps rotor valve disc self-stabilization, and can realize self-cleaning through the dirty dust whirling that the centrifugal force accumulated above the valve disc.

The preferred embodiments of the present utility model have been described in detail above, but the present utility model is not limited thereto. Within the scope of the technical idea of the utility model, a number of simple variants of the technical solution of the utility model are possible, including combinations of the individual technical features in any other suitable way, which simple variants and combinations should likewise be regarded as being disclosed by the utility model, all falling within the scope of protection of the utility model.

Claims (14)

1. Rotor valve disc, characterized by, including circular valve disc body (8), be formed with the annular groove more than two on the lower surface of valve disc body (8), and be formed with a plurality of rotor (81) along the periphery of valve disc body (8) lower surface.

2. The rotor disc of claim 1, wherein adjacent rotors are staggered with respect to each other.

3. A rotor disc according to claim 1 or claim 2, wherein the arc of each rotor is 0.3rad to 0.4rad.

4. A rotor disc according to claim 1 or 2, wherein the gap between two adjacent rotors is 3-6mm.

5. Rotor disc according to claim 1 or 2, characterized in that the number of rotors (81) is 15-20.

6. Rotor disc according to claim 1, characterized in that the number of annular grooves on the disc body (8) is two, the annular groove in the inner ring is a class I annular groove (82) and the annular groove in the outer ring is a class II annular groove (83).

7. Rotor disc according to claim 6, characterized in that a non-newtonian fluid cushion ring (9) is provided in the class II annular groove (83).

8. Rotor disc according to claim 6 or 7, characterized in that the waistline of the class I annular groove (82) and the class II annular groove (83) is S-shaped.

9. Rotor disc according to claim 6 or 7, characterized in that the central ring diameter D of the class I annular groove (82) ₁ And the center ring diameter D of the class II annular groove (83) ₂ The relation between the two is: d (D) ₂ ＝D ₁ +b, wherein b is 14-30mm.

10. Rotor disc according to claim 6 or 7, characterized in that the class I annular groove (82) has a width of 5-8mm, the class II annular groove (83) has a width of 8-12mm, and the class I annular groove (82) and the class II annular groove (83) have a depth of 2.5-3.2mm.

11. Rotor disc according to claim 1, 2, 6 or 7, characterized in that the lower surface of the disc body (8) is provided with a sealing membrane (5) and a membrane-fixing disc (6), the sealing membrane (5) covering the annular groove, and the membrane-fixing disc (6) being arranged in the middle of the lower surface of the disc (2) for compressing the sealing membrane (5).

12. Rotor disc according to claim 11, characterized in that the sealing membrane (5) comprises a polymer layer (51) and a fluororubber layer (52).

13. Rotor disc according to claim 12, characterized in that the polymer layer (51) is made of polytetrafluoroethylene.

14. Rotor disc according to claim 11, characterized in that the sealing membrane (5) is ring-shaped.