CN210372107U - Ultra-low temperature fixed ball valve for new energy photovoltaic industry - Google Patents
Ultra-low temperature fixed ball valve for new energy photovoltaic industry Download PDFInfo
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- CN210372107U CN210372107U CN201921145131.3U CN201921145131U CN210372107U CN 210372107 U CN210372107 U CN 210372107U CN 201921145131 U CN201921145131 U CN 201921145131U CN 210372107 U CN210372107 U CN 210372107U
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Abstract
The utility model discloses an ultra-low temperature fixed ball valve for new energy photovoltaic industry, which comprises a valve body, a valve rod, a valve ball and a valve seat, wherein the valve rod is in a step-shaped structure; be provided with disk seat positioning groove on the internal face of valve pocket, the disk seat includes disk seat body, valve ball sealing washer, pretension spring and energy storage lip seal, the valve ball sealing washer is installed and is aimed at the valve ball end at the disk seat body, the disk seat body deviates from the valve ball end and is provided with a spring groove, pretension spring one end inserts the spring inslot, and the pretension spring other end supports and presses on disk seat positioning groove's internal face, energy storage lip seal cover is established and is deviated from the valve ball end at the disk seat body, and energy storage lip seal is located disk seat positioning groove, the disk seat body passes through the valve ball sealing washer and constitutes sealedly with the surface. Above-mentioned technical scheme, structural design is reasonable, simple structure, sealed reliable, the part can not blown out by medium pressure, reliable operation, maintenance convenience and long service life, the practicality is good.
Description
Technical Field
The utility model relates to the technical field of valves, concretely relates to new forms of energy photovoltaic is ultralow temperature fixed ball valve for trade.
Background
The ball valve has the obvious advantages of quick opening and closing, small flow resistance coefficient, excellent sealing performance and the like, and is widely applied to modern industry. In the industries of new energy polysilicon manufacturing technology, petroleum product manufacturing technology, Liquefied Natural Gas (LNG) storage and transportation and the like, high-level media such as chlorosilane, ethylene, Liquefied Natural Gas (LNG) and the like are involved, and the ultra-low temperature ball valve has higher requirements.
Under the working condition of an ultralow temperature medium, the (-196 ℃ to-110 ℃) condition, the structural design of the soft sealing valve seat of the existing ultralow temperature fixed ball valve faces the problems that all parts are easy to deform and shrink and are inconsistent, the problem that a sealing ring is prevented from blowing out, and the problem that the upper-mounted valve rod of the existing ball valve is blown out by the internal pressure of a pipeline, so that a solution needs to be found from the aspects of structural design and material selection to realize the good work of the fixed ball valve under the ultralow temperature environment.
SUMMERY OF THE UTILITY MODEL
Not enough to prior art exists, the utility model aims to provide a new forms of energy photovoltaic is ultralow temperature fixed ball valve for trade that structural design is reasonable, simple structure, sealed reliable, the part can not blown off by medium pressure, reliable operation, maintenance convenience and long service life.
In order to achieve the above purpose, the utility model provides a following technical scheme: the ultralow-temperature fixed ball valve for the new energy photovoltaic industry comprises a valve body, a valve rod, a valve ball and a valve seat, wherein a valve cavity is formed in the valve body, the valve ball and the valve seat are installed in the valve cavity, the upper end of the valve ball is connected with the lower end of the valve rod, the valve rod is of a stepped structure, a first valve rod section, a second valve rod section and a third valve rod section are sequentially arranged on the valve rod from bottom to top, the diameter of the first valve rod section is larger than that of the second valve rod section, and the diameter of the second valve rod section is larger than that of the third valve rod section; be provided with disk seat positioning groove on the internal face of valve pocket, the disk seat includes disk seat body, valve ball sealing washer, pretension spring and energy storage lip seal, the valve ball sealing washer is installed and is aimed at the valve ball end at the disk seat body, the disk seat body deviates from the valve ball end and is provided with a spring groove, pretension spring one end inserts the spring inslot, and the pretension spring other end supports and presses on disk seat positioning groove's internal face, energy storage lip seal cover is established and is deviated from the valve ball end at the disk seat body, and energy storage lip seal is located disk seat positioning groove, the disk seat body passes through the valve ball sealing washer and constitutes sealedly with the surface of valve.
By adopting the technical scheme, the valve rod is in a stepped shaft shape, so that the problem that the upper-mounted valve rod of the existing ball valve is blown out by the internal pressure of a pipeline is thoroughly solved; the pretension spring of disk seat gives valve ball sealing washer a thrust to the valve ball, pastes the surface of tight valve ball all the time, can guarantee simultaneously under the effect of energy storage lip seal circle that normal atmospheric temperature and ultra-low temperature operating mode reliably sealed, job stabilization.
The utility model discloses further set up to: the valve ball bottom is provided with a positioning groove, the valve body bottom is provided with a bottom cover hole aiming at the positioning groove, the lower end of the bottom cover hole is detachably provided with a bottom cover, the upper end face of the bottom cover is integrally provided with a positioning shaft, and the upper end of the positioning shaft is inserted into the positioning groove.
The utility model discloses still further set up to: the bottom cover hole is a round hole, and the aperture of the bottom cover hole is larger than the diameter of the first valve rod section.
The utility model discloses still further set up to: the valve body upper end an organic whole is provided with valve gap connection boss, the vertical valve rod mounting hole that is provided with in valve gap connection boss middle part, the vertical central line of valve rod mounting hole and the coincidence of the vertical central line in bottom cap hole, valve rod mounting hole lower extreme is provided with the spacing recess of valve rod, the spacing joint of internal face of step face and the spacing recess of valve rod between first valve rod section and the second valve rod section.
The utility model discloses still further set up to: the lower end of the second valve rod section is sleeved with a thrust gasket, and the thrust gasket is located between a step surface between the first valve rod section and the second valve rod section and the inner wall surface of the valve rod limiting groove.
The utility model discloses still further set up to: valve rod upper end cover is equipped with first extension valve gap, first extension valve gap can be dismantled with the valve gap connection boss and be connected, and is provided with first metal winding gasket and first lip seal between first extension valve gap and the valve gap connection boss, constitute through first lip seal between first extension valve gap, the valve gap connection boss and the valve rod and seal.
The utility model discloses still further set up to: the packing device is characterized in that a packing groove is formed in the upper end of the first lengthened valve cover, a packing pad, a packing assembly and a packing gland are sequentially arranged in the packing groove from bottom to top, and the packing gland is fixedly connected with the upper end of the first lengthened valve cover through a bolt.
The utility model discloses still further set up to: the bottom cover is connected with the bottom of the valve body through a bolt, a second lip-shaped sealing ring and a second metal winding gasket are arranged between the bottom cover and the valve body, and the bottom cover and the valve body are sealed through the second lip-shaped sealing ring and the second metal winding gasket.
The utility model discloses still further set up to: the valve ball sealing ring is made of PCTFE materials, and the valve ball sealing ring and the valve seat body are connected and fixed to form an integral structure.
The utility model discloses still further set up to: the valve body comprises a left valve body and a right valve body, and the left valve body and the right valve body are fixedly connected through bolts after being assembled.
The utility model has the advantages that: compared with the prior art, the structure of the utility model is reasonable, the valve rod is in a ladder-shaped structure, and the valve rod is arranged from the bottom cover hole of the valve body during assembly, thus thoroughly solving the problem that the existing ball valve upper-mounted valve rod is blown out by the internal pressure of a pipeline; the pre-tightening spring of the valve seat provides thrust to the valve ball for the valve ball sealing ring, the valve ball sealing ring is always attached to the outer surface of the valve ball, and meanwhile, the sealing reliability and the working stability under normal-temperature and ultralow-temperature working conditions can be ensured under the action of the energy storage lip-shaped sealing ring; the design of the lengthened valve cover is adopted, so that the temperature of the part of the packing assembly is higher, the sealing performance is good, double sealing is realized by the lip-shaped sealing ring, and the sealing is reliable; the ultralow-temperature fixed ball valve for the whole new energy photovoltaic industry is reasonable in structural design, simple in structure, reliable in sealing, reliable in working, convenient to maintain, long in service life and good in practicability, and parts cannot be blown out by medium pressure.
The invention is further described with reference to the drawings and the specific embodiments.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present invention;
FIG. 2 is an enlarged view of section I of FIG. 1;
fig. 3 is an enlarged view of section II in fig. 1.
Detailed Description
In the description of the present embodiment, it should be noted that, as the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", "front", "rear", etc. appear, the indicated orientation or positional relationship thereof is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the indicated device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" as appearing herein are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
Referring to fig. 1, 2 and 3, the utility model discloses an ultra-low temperature fixed ball valve for new forms of energy photovoltaic industry, including valve body 1, valve rod 2, valve ball 3 and valve seat 4, be provided with valve pocket 11 in the valve body 1, valve ball 3 and valve seat 4 are installed in valve pocket 11, the upper end of valve ball 3 is connected with valve rod 2 lower extreme, valve rod 2 is the echelonment structure, and valve rod 2 has set gradually first valve rod section 21, second valve rod section 22 and third valve rod section 23 from the bottom up, and the diameter of first valve rod section 21 is greater than the diameter of second valve rod section 22, and the diameter of second valve rod section 22 is greater than the diameter of third valve rod section 23; be provided with disk seat positioning groove 111 on the internal face of valve pocket 11, disk seat 4 includes disk seat body 41, valve ball sealing washer 42, pretension spring 43 and energy storage lip seal 44, valve ball sealing washer 42 is installed and is aimed at the valve ball end at disk seat body 41, disk seat body 41 deviates from the valve ball end and is provided with a spring groove 411, pretension spring 43 one end inserts in the spring groove 411, and the pretension spring 43 other end supports and presses on the internal face of disk seat positioning groove 111, energy storage lip seal 44 cover is established and is deviated from the valve ball end at disk seat body 41, and energy storage lip seal 44 is located disk seat positioning groove 111, disk seat body 41 constitutes through valve ball sealing washer 42 and valve ball 3's surface and seals.
Preferably, the upper end of the valve ball 3 and the lower end of the valve rod 2 are fixed by the existing bolt connection or by welding. When an energy-storing lip-shaped sealing ring 44 is arranged on the valve seat 4, a single-piston effect valve seat is formed, and the figure 3 is shown; when two energy-storing lip-shaped sealing rings 44 are arranged on the valve seat 4, a double-piston effect valve seat is formed, and referring to fig. 2, high sealing performance of the valve and high safety of a pipeline system are ensured.
For making the utility model discloses the structure sets up more rationally, as preferred, this embodiment 3 bottoms of valve ball are provided with a positioning groove 31, 1 bottom of valve body is aimed at positioning groove 31 position and is provided with a bottom hole 12, bottom hole 12 lower extreme can be dismantled and be provided with bottom 5, an organic whole is provided with location axle 51 on the up end of bottom 5, location axle 51 upper end inserts in positioning groove 31.
The bottom cover hole 12 is a circular hole, and the aperture of the bottom cover hole 12 is larger than the diameter of the first valve rod section 21.
The valve body 1 upper end an organic whole is provided with valve gap connection boss 13, the valve gap connection boss 13 middle part is vertical to be provided with valve rod mounting hole 131, the vertical central line of valve rod mounting hole 131 and the coincidence of the vertical central line of bottom hole 12, valve rod mounting hole 131 lower extreme is provided with valve rod spacing recess 132, the spacing joint of step face and the valve rod spacing recess 132's of first valve rod section 21 between the second valve rod section 22.
The lower end of the second valve rod section 22 is sleeved with a thrust gasket 6, and the thrust gasket 6 is positioned between the step surface between the first valve rod section 21 and the second valve rod section 22 and the inner wall surface of the valve rod limiting groove 132.
The upper end cover of valve rod 2 is equipped with first extension valve gap 7, first extension valve gap 7 can be dismantled with valve gap connection boss 13 and be connected, and is provided with first metal winding gasket 8 and first lip seal 9 between first extension valve gap 7 and the valve gap connection boss 13, constitute through first lip seal 9 between first extension valve gap 7, the valve gap connection boss 13 and the valve rod 2 and seal.
The upper end of the first lengthened valve cover 7 is provided with a packing groove 71, a packing pad 10, a packing assembly 14 and a packing gland 15 are sequentially arranged in the packing groove 71 from bottom to top, and the packing gland 15 is fixedly connected with the upper end of the first lengthened valve cover 7 through a bolt.
The bottom cover 5 is connected with the bottom of the valve body 1 through a bolt, a second lip-shaped sealing ring 16 and a second metal winding gasket 17 are arranged between the bottom cover 5 and the valve body 1, and the bottom cover 5 and the valve body 1 are sealed through the second lip-shaped sealing ring 16 and the second metal winding gasket 17.
The valve ball sealing ring 42 is made of PCTFE material, and the valve ball sealing ring 42 and the valve seat body 41 are connected and fixed to form an integral structure.
The valve body 1 comprises a left valve body and a right valve body, and the left valve body and the right valve body are fixedly connected through bolts after being assembled.
In practical application, the valve rod is of a step-shaped structure and is assembled from a bottom cover hole of the valve body during assembly, so that the problem that the existing upper-mounted valve rod of the ball valve is blown out by the internal pressure of a pipeline is thoroughly solved; the pre-tightening spring of the valve seat provides thrust to the valve ball for the valve ball sealing ring, the valve ball sealing ring is always attached to the outer surface of the valve ball, and meanwhile, the sealing reliability and the working stability under normal-temperature and ultralow-temperature working conditions can be ensured under the action of the energy storage lip-shaped sealing ring; the design of the lengthened valve cover is adopted, so that the temperature of the part of the packing assembly is higher, the sealing performance is good, double sealing is realized by the lip-shaped sealing ring, and the sealing is reliable; the ultralow-temperature fixed ball valve for the whole new energy photovoltaic industry is reasonable in structural design, simple in structure, reliable in sealing, reliable in working, convenient to maintain, long in service life and good in practicability, and parts cannot be blown out by medium pressure.
The above embodiments are only used for further explanation of the present invention, and it is not understood that the present invention is limited by the protection scope of the present invention, and the technical engineers in the field are right according to the above contents of the present invention.
Claims (10)
1. The utility model provides a ball valve is fixed with ultra-low temperature to new forms of energy photovoltaic trade, includes valve body (1), valve rod (2), valve ball (3) and disk seat (4), be provided with valve pocket (11) in valve body (1), install in valve pocket (11) valve ball (3) and disk seat (4), valve ball (3) upper end is connected its characterized in that with valve rod (2) lower extreme: the valve rod (2) is of a stepped structure, a first valve rod section (21), a second valve rod section (22) and a third valve rod section (23) are sequentially arranged on the valve rod (2) from bottom to top, the diameter of the first valve rod section (21) is larger than that of the second valve rod section (22), and the diameter of the second valve rod section (22) is larger than that of the third valve rod section (23); a valve seat positioning groove (111) is arranged on the inner wall surface of the valve cavity (11), the valve seat (4) comprises a valve seat body (41), a valve ball sealing ring (42), a pre-tightening spring (43) and an energy storage lip-shaped sealing ring (44), the valve ball sealing ring (42) is arranged at the end of the valve seat body (41) aligned with the valve ball, a spring groove (411) is arranged at the end of the valve seat body (41) deviating from the valve ball, one end of the pre-tightening spring (43) is inserted into the spring slot (411), the other end of the pre-tightening spring (43) is pressed against the inner wall surface of the valve seat positioning groove (111), the energy storage lip-shaped sealing ring (44) is sleeved at the end of the valve seat body (41) departing from the valve ball, and the energy storage lip-shaped sealing ring (44) is positioned in the valve seat positioning groove (111), and the valve seat body (41) forms sealing with the outer surface of the valve ball (3) through the valve ball sealing ring (42).
2. The ultra-low temperature fixed ball valve for the new energy photovoltaic industry as claimed in claim 1, wherein: the valve ball (3) bottom is provided with a positioning groove (31), valve body (1) bottom is aimed at positioning groove (31) position and is provided with a bottom cover hole (12), bottom cover hole (12) lower extreme can be dismantled and is provided with bottom (5), an organic whole is provided with location axle (51) on the up end of bottom (5), location axle (51) upper end inserts in positioning groove (31).
3. The ultra-low temperature fixed ball valve for the new energy photovoltaic industry as claimed in claim 2, wherein: the bottom cover hole (12) is a round hole, and the aperture of the bottom cover hole (12) is larger than the diameter of the first valve rod section (21).
4. The ultra-low temperature fixed ball valve for the new energy photovoltaic industry as claimed in claim 3, wherein: valve body (1) upper end an organic whole is provided with valve gap connection boss (13), the vertical valve rod mounting hole (131) that is provided with in valve gap connection boss (13) middle part, the vertical central line of valve rod mounting hole (131) and the coincidence of the vertical central line of bottom cap hole (12), valve rod mounting hole (131) lower extreme is provided with valve rod spacing recess (132), the spacing joint of the internal face of step face between first valve rod section (21) and second valve rod section (22) and valve rod spacing recess (132).
5. The ultra-low temperature fixed ball valve for the new energy photovoltaic industry as claimed in claim 4, wherein: the lower end of the second valve rod section (22) is sleeved with a thrust gasket (6), and the thrust gasket (6) is located between a step surface between the first valve rod section (21) and the second valve rod section (22) and the inner wall surface of the valve rod limiting groove (132).
6. The ultra-low temperature fixed ball valve for the new energy photovoltaic industry as claimed in claim 1, wherein: valve rod (2) upper end cover is equipped with first extension valve gap (7), first extension valve gap (7) can be dismantled with valve gap connection boss (13) and be connected, and is provided with first metal winding gasket (8) and first lip seal (9) between first extension valve gap (7) and valve gap connection boss (13), constitute through first lip seal (9) between first extension valve gap (7), valve gap connection boss (13) and valve rod (2) and seal.
7. The ultra-low temperature fixed ball valve for the new energy photovoltaic industry as claimed in claim 6, wherein: the packing device is characterized in that a packing groove (71) is formed in the upper end of the first lengthened valve cover (7), a packing pad (10), a packing assembly (14) and a packing gland (15) are sequentially arranged in the packing groove (71) from bottom to top, and the packing gland (15) is fixedly connected with the upper end of the first lengthened valve cover (7) through bolts.
8. The ultra-low temperature fixed ball valve for the new energy photovoltaic industry as claimed in claim 3, wherein: the bottom cover (5) is connected with the bottom of the valve body (1) through a bolt, a second lip-shaped sealing ring (16) and a second metal winding gasket (17) are arranged between the bottom cover (5) and the valve body (1), and the bottom cover (5) and the valve body (1) are sealed through the second lip-shaped sealing ring (16) and the second metal winding gasket (17).
9. The ultra-low temperature fixed ball valve for the new energy photovoltaic industry as claimed in claim 1, wherein: the valve ball sealing ring (42) is made of PCTFE materials, and the valve ball sealing ring (42) and the valve seat body (41) are connected and fixed to form an integral structure.
10. The ultra-low temperature fixed ball valve for the new energy photovoltaic industry as claimed in claim 1, wherein: the valve body (1) comprises a left valve body and a right valve body, and the left valve body and the right valve body are fixedly connected through bolts after being assembled.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921145131.3U CN210372107U (en) | 2019-07-19 | 2019-07-19 | Ultra-low temperature fixed ball valve for new energy photovoltaic industry |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921145131.3U CN210372107U (en) | 2019-07-19 | 2019-07-19 | Ultra-low temperature fixed ball valve for new energy photovoltaic industry |
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| Publication Number | Publication Date |
|---|---|
| CN210372107U true CN210372107U (en) | 2020-04-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921145131.3U Active CN210372107U (en) | 2019-07-19 | 2019-07-19 | Ultra-low temperature fixed ball valve for new energy photovoltaic industry |
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| CN (1) | CN210372107U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113864476A (en) * | 2021-10-09 | 2021-12-31 | 欧维克集团有限公司 | Large-caliber high-pressure all-metal hard sealing zero-leakage ball valve |
-
2019
- 2019-07-19 CN CN201921145131.3U patent/CN210372107U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113864476A (en) * | 2021-10-09 | 2021-12-31 | 欧维克集团有限公司 | Large-caliber high-pressure all-metal hard sealing zero-leakage ball valve |
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