Full-bore hydrogen energy regulating valve structure

Abstract

The utility model relates to the technical field of valves, in particular to a full-bore hydrogen energy regulating valve structure which comprises a valve body, a mounting cavity is formed in the valve body, a medium input channel and a medium output channel are arranged at the two ends of the valve body respectively, and the inner end of the medium input channel extends to the position below the mounting cavity. The inner end of the medium output channel is communicated with one side of the mounting cavity; a mounting hole is vertically formed in the inner bottom surface of the mounting cavity and is communicated with the inner end of the medium input channel; a valve seat is mounted in the mounting hole; a valve element is arranged corresponding to the valve seat, an actuator is arranged on the valve seat, the driving end of the actuator is connected with a vertically-arranged valve rod, and the lower end of the valve rod is made to be connected with the valve element and can drive the valve element to vertically move. The utility model has the characteristics that the pressure loss can be better reduced, the sealing is more reasonable, and the disassembly and assembly are more convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of valves, in particular to a full-bore hydrogen energy regulating valve structure. Background Art

[0002] In the automatic control of modern factories, regulating valves play a very important role. The production of factories depends on the correct distribution and control of flowing media. Whether these controls are energy exchange, pressure reduction or simple container feeding, control elements are required to complete them.

[0003] In the process of hydrogen production by separating oxygen and hydrogen, a regulating valve needs to be installed at the front end of the purification device, and it is necessary to ensure that the pressure loss before and after the regulating valve is fully opened does not exceed 0.02 to 0.04 KPa, so as to better ensure normal operation. Due to the limitation of the structural design of the existing regulating valve structure, it is difficult to ensure the pressure loss. Secondly, there are also problems that the sealing design between the valve core and the valve seat is not reasonable and reliable enough, and the valve stem is not convenient for disassembly and assembly. Summary of the Utility Model

[0004] In view of the above-mentioned defects of the prior art, the technical problem to be solved by the utility model is how to provide a full-bore hydrogen energy regulating valve structure with a simpler and more reasonable structural design, which can better reduce the pressure loss, and the sealing is more reasonable and more convenient for disassembly and assembly.

[0005] To achieve the above object, the utility model provides a full-bore hydrogen energy regulating valve structure, including a valve body. The valve body has an installation cavity inside. A medium input channel and a medium output channel are respectively arranged at both ends of the valve body, and the inner end of the medium input channel extends below the installation cavity, and the inner end of the medium output channel is communicated with one side of the installation cavity; an installation hole is vertically arranged on the inner bottom surface of the installation cavity and is communicated with the inner end of the medium input channel; a valve seat is installed in the installation hole; a valve core is arranged corresponding to the valve seat, an actuator is arranged on the valve seat, and the driving end of the actuator is connected with a vertically arranged valve stem, and the lower end of the valve stem is connected with the valve core and can drive the valve core to move vertically; its characteristics are as follows; the valve core includes a valve core lower section, a valve core middle section and a valve core upper section with diameters increasing in sequence at the lower end, and the valve core middle section is designed as a frustum of a cone structure; the inner hole of the valve seat includes an inner hole lower section and an inner hole upper section, a sealing ring is arranged at the upper end of the inner hole upper section, and the sealing ring is in sealing contact with the outer peripheral surface of the valve core middle section; the inner hole lower section is a conical hole section with a larger diameter at the lower end and a smaller diameter at the upper end, and the valve core lower section includes a plurality of valve core lower section units which are stacked from bottom to top and have diameters increasing in sequence.

[0006] In this way, in the above full-bore hydrogen energy regulating valve structure, by setting the valve core to include a lower valve core section, a middle valve core section, and an upper valve core section with diameters increasing in sequence, and designing the middle valve core section as a frustum of a cone structure; then designing the inner hole of the valve seat as a lower inner hole section and an upper inner hole section, and providing a sealing ring at the upper end of the upper inner hole section, with the sealing ring in contact with the outer peripheral surface of the middle valve core section to ensure the valve cutting effect. And making the lower inner hole section a tapered hole section with a larger diameter at the lower end and a smaller diameter at the upper end, and the lower valve core section extending into the lower inner hole section is formed by a plurality of lower valve core units stacked from bottom to top with diameters increasing in sequence. When the valve core moves upward, the gas in the medium input channel can better flow into the installation cavity and the medium output channel. Such a structural design can better ensure sealing and at the same time can better reduce the pressure loss between the medium input channel and the medium output channel.

[0007] As an optimization, the center position of the lower end face of the lower valve core section protrudes downward in a conical structure design.

[0008] In this way, the structural design is more reasonable and more conducive to the gas in the medium input channel flowing more evenly into the installation cavity and the medium output channel.

[0009] As an optimization, the valve seat includes an upper valve seat section and a lower valve seat section, and the diameter of the upper valve seat section is greater than that of the lower valve seat section; the installation hole includes an upper installation hole section and a lower installation hole section, and the diameter of the upper installation hole section is greater than that of the lower installation hole section. After the valve seat is installed in the installation hole, the step surface formed between the upper valve seat section and the lower valve seat section can be in contact with the step surface formed between the upper installation hole section and the lower installation hole section.

[0010] In this way, the structural design of the valve seat is simpler and it is more convenient to install and fix.

[0011] As an optimization, a ring of upwardly protruding ridges is provided on the upper end face edge of the upper valve seat section, and a plurality of protruding blocks that are spaced along the circumferential direction and are integrally curved in an arc shape are provided on the ridges; a notch is formed between any two adjacent protruding blocks.

[0012] In this way, by providing the ridges and the protruding blocks and forming the notch, the structural design is more reasonable.

[0013] As an optimization, the valve core includes a valve core connecting rod section at the upper end, and the valve core connecting rod section is connected to the lower end of the valve stem.

[0014] In this way, by providing the valve core connecting rod section, the connection between the valve core and the valve stem can be more convenient.

[0015] As an optimization, an installation hole is provided on the valve body and is directly opposite to the upper end of the installation cavity. A bushing component is installed in the installation hole. The bushing component includes a vertically arranged bushing. The upper end of the bushing has a circular installation ring, and the lower side of the installation ring is attached to the installation step surface in the middle of the installation hole. A toothed gasket is provided between the installation step surface and the installation ring. A protective sleeve is arranged inside the bushing, and the valve core connecting rod section is fitted in the protective sleeve. An upper valve cover is fixedly installed at the upper end of the installation hole on the valve body. The valve stem passes through the relief hole on the upper valve cover and is connected to the working end of the actuator. A sealing structure is provided between the relief hole and the valve stem.

[0016] In this way, by arranging the bushing and the protective sleeve and cooperating with the valve core connecting rod section, a guiding effect can be achieved, enabling the valve core to better cooperate with the valve seat.

[0017] As an optimization, a plurality of vent holes vertically penetrating and evenly distributed along the circumferential direction are provided on the installation ring.

[0018] In this way, the pressure in the installation cavity can be better balanced, and the force for operating the valve core can be better ensured to remain constant.

[0019] As an optimization, the lower end surface of the upper valve cover has a fitting protrusion extending into the installation hole, and a toothed gasket is provided between the outer edge of the fitting protrusion and the installation ring.

[0020] In this way, by forming a fitting protrusion at the lower end of the upper valve cover, the installation and fixation of the bushing can be better achieved.

[0021] As an optimization, the sealing structure includes a first packing component and a second packing component arranged in a stacked manner between the valve stem and the relief hole, and a spacer sleeve is provided between the first packing component and the second packing component. A packing gland is provided at the upper end of the relief hole, and a pressing plate is provided above the packing gland, and the pressing plate is connected to the upper end of the upper valve cover by screws.

[0022] In this way, the sealing structure is more reasonably designed, and the sealing reliability can be improved.

[0023] To sum up, in the above full-bore hydrogen energy regulating valve structure, through the structural design of the valve core and the valve seat, the pressure loss can be better reduced; through the design of the bushing component and the upper valve cover part structure, the disassembly and assembly can be more conveniently completed, and the sealing effect on the valve stem can be improved. Brief Description of the Drawings

[0024] Figure 1 It is a schematic diagram of the full-bore hydrogen energy regulating valve structure in the specific embodiment of the present invention.

[0025] Figure 2 is Figure 1Schematic diagram of the structure after being rotated by an angle.

[0026] Figure 3 is Figure 1 the front view of.

[0027] Figure 4 is Figure 1 the left view of.

[0028] Figure 5 is Figure 4 the schematic A-A sectional view of (the actuator is omitted in the figure).

[0029] Figure 6 is Figure 5 the enlarged partial view at position B in.

[0030] Figure 7 is Figure 5 the enlarged partial view at position C in.

[0031] Figure 8 is Figure 1 the schematic diagram of the spool part in.

[0032] Figure 9 is Figure 8 the schematic diagram of the spool in. Detailed implementation manner

[0033] The present utility model will be further described below in conjunction with the accompanying drawings and embodiments. It should be noted that in the description of the present utility model, the orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific manner, so it should not be construed as a limitation to the present utility model. The terms "first", "second", "third", etc. are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0034] Such as Figures 1 to 9As shown in the figure, a full-bore hydrogen energy regulating valve structure includes a valve body 1. The interior of the valve body has an installation cavity 2. A medium input channel 3 and a medium output channel 4 are respectively arranged at both ends of the valve body, and the inner end of the medium input channel extends below the installation cavity, and the inner end of the medium output channel is communicated with one side of the installation cavity; an installation hole is vertically arranged on the inner bottom surface of the installation cavity and is communicated with the inner end of the medium input channel; a valve seat 5 is installed in the installation hole; a valve core 6 is arranged corresponding to the valve seat, an actuator 7 is arranged on the valve seat, and the driving end of the actuator is connected with a vertically arranged valve rod 8, and the lower end of the valve rod is connected with the valve core and can drive the valve core to move vertically; the valve core includes a valve core lower section 9, a valve core middle section 10 and a valve core upper section 11 with diameters increasing in sequence from the lower end, and the valve core middle section is designed as a conical frustum structure; the inner hole of the valve seat includes an inner hole lower section and an inner hole upper section, a sealing ring 12 is arranged at the upper end of the inner hole upper section, and the sealing ring is in close contact with the outer peripheral surface of the valve core middle section for sealing; the inner hole lower section is a conical hole section 13 with a larger diameter at the lower end and a smaller diameter at the upper end, and the valve core lower section includes a plurality of valve core lower section units 14 which are stacked from bottom to top and have diameters increasing in sequence.

[0035] In this way, in the above full-bore hydrogen energy regulating valve structure, by setting the valve core as a valve core lower section, a valve core middle section and a valve core upper section with diameters increasing in sequence, and designing the valve core middle section as a conical frustum structure; then designing the inner hole of the valve seat as an inner hole lower section and an inner hole upper section, and a sealing ring is arranged at the upper end of the inner hole upper section, and the sealing ring is in close contact with the outer peripheral surface of the valve core middle section to ensure the valve cutting effect. And the inner hole lower section is a conical hole section with a larger diameter at the lower end and a smaller diameter at the upper end, and the valve core lower section extending into the inner hole lower section is formed by a plurality of valve core lower section units which are stacked from bottom to top and have diameters increasing in sequence. When the valve core moves upward, the gas in the medium input channel can better flow into the installation cavity and the medium output channel. Such a structural design can better ensure sealing and at the same time can better reduce the pressure loss between the medium input channel and the medium output channel.

[0036] In this specific embodiment, the center position of the lower end face of the valve core lower section protrudes downward in a conical structure design.

[0037] In this way, the structural design is more reasonable and more conducive to the gas in the medium input channel flowing into the installation cavity and the medium output channel more evenly.

[0038] In this specific embodiment, the valve seat includes a valve seat upper section 15 and a valve seat lower section 16, and the diameter of the valve seat upper section is larger than that of the valve seat lower section; the installation hole includes an installation hole upper section and an installation hole lower section, and the diameter of the installation hole upper section is larger than that of the installation hole lower section. After the valve seat is installed in the installation hole, the step surface formed between the valve seat upper section and the valve seat lower section can be in close contact with the step surface formed between the installation hole upper section and the installation hole lower section.

[0039] In this way, the structural design of the valve seat is simpler, and it can be installed and fixed more conveniently.

[0040] In this specific embodiment, a raised flange 17 is provided along the upper edge of the upper end surface of the upper section of the valve seat, and a plurality of protruding blocks 18 that are spaced along the circumferential direction and are integrally curved in an arc shape are provided on the flange; a notch 19 is formed between any two adjacent protruding blocks.

[0041] In this way, by providing the flange and the protruding blocks and forming the notch, the structural design is more reasonable.

[0042] In this specific embodiment, the valve core includes a valve core connecting rod section 20 at the upper end, and the valve core connecting rod section is connected to the lower end of the valve stem.

[0043] In this way, by providing the valve core connecting rod section, the connection between the valve core and the valve stem can be more convenient.

[0044] In this specific embodiment, an installation hole is provided on the valve body and is directly opposite to the upper end of the installation cavity. A bushing component is installed in the installation hole. The bushing component includes a vertically arranged bushing 21. The upper end of the bushing has a circular installation ring 22, and the lower side of the installation ring is attached to the installation step surface in the middle of the installation hole. And a toothed gasket 23 is provided between the installation step surface and the installation ring; a protective sleeve 24 is provided inside the bushing, and the valve core connecting rod section is fitted in the protective sleeve; and an upper valve cover 25 is installed and fixed at the upper end of the installation hole on the valve body. The valve stem passes through the relief hole on the upper valve cover and is connected to the working end of the actuator; and a sealing structure is provided between the relief hole and the valve stem.

[0045] In this way, by providing the bushing and the protective sleeve and cooperating with the valve core connecting rod section, a guiding effect can be achieved, so that the valve core can cooperate better with the valve seat.

[0046] In this specific embodiment, a plurality of air vents 26 that are vertically penetrated and are evenly distributed along the circumferential direction are provided on the installation ring.

[0047] In this way, the pressure in the installation cavity can be better balanced, and the force for operating the valve core can be better ensured to remain constant.

[0048] In this specific embodiment, the lower end surface of the upper valve cover has a mating protruding portion 27 that extends into and fits into the installation hole, and a toothed gasket is provided between the outer edge of the mating protruding portion and the installation ring.

[0049] In this way, by forming the mating protruding portion at the lower end of the upper valve cover, the installation and fixation of the bushing can be better achieved.

[0050] In this specific embodiment, the sealing structure includes a first packing assembly 28 and a second packing assembly 29 which are arranged in a stacked manner between the valve stem and the relief hole, and a spacer sleeve 30 is arranged between the first packing assembly and the second packing assembly; a packing gland 31 is arranged at the upper end of the relief hole, and a pressing plate 32 is arranged above the packing gland, and the pressing plate is connected to the upper end of the upper valve cover by screws.

[0051] In this way, the sealing structure is more reasonably designed and can improve the reliability of sealing.

[0052] In summary, in the structure of the full-bore hydrogen energy regulating valve described above, through the structural design of the valve core and the valve seat, the pressure loss can be better reduced; through the design of the bushing component and the structure of the upper valve cover part, the disassembly and assembly can be more conveniently completed, and the sealing effect on the valve stem can be improved.

[0053] The preferred specific embodiments of the present invention have been described in detail above. It should be understood that those of ordinary skill in the art can make many modifications and variations based on the concept of the present invention without creative work. Therefore, all technical solutions that can be obtained by those skilled in the art in the technical field of the present invention through logical analysis, reasoning or limited experiments based on the concept of the present invention on the basis of the prior art should be within the protection scope determined by the claims.

Claims

1. A full-diameter hydrogen energy regulating valve structure, comprising a valve body, an installation cavity inside the valve body, a medium input channel and a medium output channel are respectively arranged at both ends of the valve body, and the inner end of the medium input channel extends to the bottom of the installation cavity, and the inner end of the medium output channel is connected with one side of the installation cavity; a mounting hole is vertically arranged on the bottom surface of the installation cavity and is connected with the inner end of the medium input channel; a valve seat is installed in the mounting hole; a valve core is arranged corresponding to the valve seat, an actuator is arranged on the valve seat, and the driving end of the actuator is connected to a vertically arranged valve stem, and the lower end of the valve stem is connected to the valve core and can drive the valve core to move vertically; it is characterized in that ； The valve core includes a valve core lower section, a valve core middle section and a valve core upper section, the diameters of which are successively increased at the lower end, and the valve core middle section is designed as a conical platform structure; the valve seat inner hole includes an inner hole lower section and an inner hole upper section, a sealing ring is provided at the upper end of the inner hole upper section, and the sealing ring is sealed against the outer peripheral surface of the valve core middle section; the inner hole lower section is a conical hole section with a larger diameter at the lower end and a smaller diameter at the upper end, and the valve core lower section includes a plurality of valve core lower section units which are stacked from bottom to top and have successively increased diameters.

2. A full-bore hydrogen energy regulating valve structure as claimed in claim 1, characterized in that: The center position of the lower end surface of the lower section of the valve core protrudes downward and is designed to be a conical structure.

3. A full-bore hydrogen energy regulating valve structure as claimed in claim 1, characterized in that: The valve seat includes an upper valve seat section and a lower valve seat section, and the diameter of the upper valve seat section is larger than the diameter of the lower valve seat section; the mounting hole includes an upper mounting hole section and a lower mounting hole section, and the diameter of the upper mounting hole section is larger than the diameter of the lower mounting hole section, and after the valve seat is installed in the mounting hole, the step surface formed between the upper valve seat section and the lower valve seat section can be set on the step surface formed between the upper mounting hole section and the lower mounting hole section.

4. A full-bore hydrogen energy regulating valve structure as claimed in claim 3, characterized in that: A convex edge protruding upward is arranged on the edge of the upper end surface of the upper section of the valve seat, and a plurality of convex blocks arranged at intervals along the circumferential direction and curved in an arc shape as a whole are arranged on the convex edge; a gap is formed between any two adjacent convex blocks.

5. A full-bore hydrogen energy regulating valve structure as claimed in claim 1, characterized in that: The valve core comprises a valve core connecting rod section at the upper end, and the valve core connecting rod section is connected to the lower end of the valve stem.

6. A full-bore hydrogen energy regulating valve structure as claimed in claim 5, characterized in that: A seating hole is provided on the valve body and opposite to the upper end of the mounting cavity, and a bushing component is installed in the seating hole, the bushing component includes a vertically arranged bushing, the upper end of the bushing has a circle of annular mounting ring, and the lower side of the mounting ring is arranged in contact with the mounting step surface in the middle of the seating hole, and a toothed pad is arranged between the mounting step surface and the mounting ring; a protective sleeve is provided inside the bushing, and the valve core connecting rod section is arranged in the protective sleeve; and an upper valve cover is fixedly installed on the upper end of the seating hole on the valve body, and the valve stem passes through the clearance hole on the upper valve cover and is connected to the working end of the actuator; and a sealing structure is provided between the clearance hole and the valve stem.

7. A full-bore hydrogen energy regulating valve structure as claimed in claim 6, characterized in that: The mounting ring is provided with a plurality of vents which are evenly distributed along the circumferential direction and vertically penetrated.

8. A full-bore hydrogen energy regulating valve structure as claimed in claim 6, characterized in that: The lower end surface of the upper valve cover is provided with a matching protrusion extending into the placement hole, and a toothed pad is arranged between the outer edge of the matching protrusion and the installation ring.

9. A full-bore hydrogen energy regulating valve structure as claimed in claim 6, characterized in that: The sealing structure includes a first packing component and a second packing component which are arranged between the valve stem and the clearance hole and are stacked, and a spacer is arranged between the first packing component and the second packing component; a packing gland is arranged at the upper end of the clearance hole, a pressure plate is arranged above the packing gland, and the pressure plate is connected to the upper end of the upper valve cover by screws.

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