CN211175522U - Regulating valve capable of changing nominal pressure - Google Patents
Regulating valve capable of changing nominal pressure Download PDFInfo
- Publication number
- CN211175522U CN211175522U CN201922159345.2U CN201922159345U CN211175522U CN 211175522 U CN211175522 U CN 211175522U CN 201922159345 U CN201922159345 U CN 201922159345U CN 211175522 U CN211175522 U CN 211175522U
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- CN
- China
- Prior art keywords
- valve
- valve core
- sealing ring
- nominal pressure
- hollow cylinder
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- 230000001105 regulatory effect Effects 0.000 title claims abstract description 14
- 238000007906 compression Methods 0.000 claims abstract description 17
- 230000006835 compression Effects 0.000 claims abstract description 16
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims abstract description 8
- 229910052737 gold Inorganic materials 0.000 claims abstract description 8
- 239000010931 gold Substances 0.000 claims abstract description 8
- 239000011248 coating agent Substances 0.000 claims abstract description 6
- 238000000576 coating method Methods 0.000 claims abstract description 6
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 3
- 229910052802 copper Inorganic materials 0.000 claims abstract description 3
- 239000010949 copper Substances 0.000 claims abstract description 3
- 238000009713 electroplating Methods 0.000 claims abstract description 3
- 238000007789 sealing Methods 0.000 claims description 32
- 239000003921 oil Substances 0.000 claims description 24
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 claims description 3
- 244000043261 Hevea brasiliensis Species 0.000 claims description 3
- 229920000459 Nitrile rubber Polymers 0.000 claims description 3
- 229920001971 elastomer Polymers 0.000 claims description 3
- 229910052731 fluorine Inorganic materials 0.000 claims description 3
- 239000011737 fluorine Substances 0.000 claims description 3
- 229920003052 natural elastomer Polymers 0.000 claims description 3
- 229920001194 natural rubber Polymers 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims description 3
- -1 polytetrafluoroethylene Polymers 0.000 claims description 3
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 3
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 3
- 229920002379 silicone rubber Polymers 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 7
- 238000013016 damping Methods 0.000 description 7
- 230000007797 corrosion Effects 0.000 description 5
- 238000005260 corrosion Methods 0.000 description 5
- 239000010720 hydraulic oil Substances 0.000 description 5
- 239000007788 liquid Substances 0.000 description 5
- 229910000881 Cu alloy Inorganic materials 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 229910052581 Si3N4 Inorganic materials 0.000 description 3
- 229920001973 fluoroelastomer Polymers 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 238000007747 plating Methods 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000013329 compounding Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000003208 petroleum Substances 0.000 description 2
- 239000003209 petroleum derivative Substances 0.000 description 2
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000010779 crude oil Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000011120 plywood Substances 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Abstract
The utility model relates to the technical field of valves, in particular to a regulating valve capable of changing nominal pressure, which comprises a valve body, wherein the valve body comprises a valve shell and a valve core sleeve arranged at one end of the valve shell, a valve core is connected in the valve core sleeve in a sliding way, a base, a compression spring and a spring seat are sequentially arranged in the valve shell, two ends of the compression spring are respectively abutted against the base and the spring seat, one end of the spring seat is fixedly connected with the valve core, the base is provided with a pressure regulating screw, and the side wall of the valve shell is provided with at least one overflow; the internal surface complex of valve casing has the copper alloy-layer, and the surface electroplating of valve casing has imitative gold coating, the inside wall of case cover front end is equipped with attenuator and oil in proper order and strains. The utility model discloses a governing valve can change nominal pressure in the certain limit, and it is simple to adjust, and the flow is big, opens and close that the characteristic is good, stable performance, sealed reliable, small, compact structure, convenient to use, low in manufacturing cost, long service life.
Description
Technical Field
The utility model relates to the technical field of valves, concretely relates to can change governing valve of nominal pressure.
Background
The oil pipeline system, i.e. the pipeline system for transporting petroleum and petroleum products, is mainly composed of oil pipeline, oil transportation station and other auxiliary related equipments, is one of the main equipments in petroleum storage and transportation industry, and is also the most main transportation equipment for crude oil and petroleum products.
The pipes of oil pipelines are generally steel pipes, and are connected into long-distance pipelines by welding, flanges and other connecting devices, and valves are used for opening and closing control and flow regulation. The experimental pressure of the steel tube is generally 1.5 times the nominal pressure. When the temperature of the conveyed materials does not exceed 200 ℃, the working pressure is the nominal pressure; when the temperature exceeds 200 ℃, the working pressure is correspondingly lower than the nominal pressure.
The existing valve for the oil pipeline is generally only suitable for the pipeline with fixed nominal pressure and cannot be adjusted; and the existing valve also has the defects of high manufacturing cost, short service life and the like.
Disclosure of Invention
In order to overcome the defects and deficiencies in the prior art, the utility model aims to provide a regulating valve which can change the nominal pressure.
The purpose of the utility model is realized through the following technical scheme: a regulating valve capable of changing nominal pressure comprises a valve body, wherein the valve body comprises a valve casing and a valve core sleeve arranged at one end of the valve casing, the valve core is connected in the valve core sleeve in a sliding manner, a base, a compression spring and a spring seat are sequentially arranged in the valve casing, two ends of the compression spring are respectively abutted against the base and the spring seat, one end of the spring seat is fixedly connected with the valve core, the base is provided with a pressure regulating screw, and the side wall of the valve casing is provided with at least one overflow hole penetrating through the inner surface; the internal surface complex of valve casing has the copper alloy-layer, and the surface electroplating of valve casing has imitative gold coating, the inside wall of case cover front end is equipped with attenuator and oil in proper order and strains.
Further, a first sealing ring is arranged between the valve core and the valve core sleeve; and a second sealing ring is arranged on the outer side wall of the front end of the valve core sleeve.
Further, the first sealing ring and the second sealing ring are any one of a silicon rubber sealing ring, a fluorine rubber sealing ring, a nitrile rubber sealing ring, a natural rubber sealing ring and a polytetrafluoroethylene sealing ring.
Furthermore, the valve core is in a shape like a Chinese character 'tu', the valve core comprises a first hollow cylinder fixed at one end of the spring seat and a second hollow cylinder fixed at one end of the first hollow cylinder, the outer diameter of the second hollow cylinder is larger than that of the first hollow cylinder, and the inner diameter of the second hollow cylinder is larger than that of the first hollow cylinder.
Furthermore, a circular groove used for containing the valve core is formed in the valve core sleeve, a circular notch is formed in one end of the circular groove, the inner diameter of the circular groove is equal to the outer diameter of the second hollow cylinder, and the inner diameter of the circular notch is equal to the outer diameter of the first hollow cylinder.
Further, the compression spring is a cylindrical spring or a disc spring.
Further, the damper is a laminate damper or an orifice plate damper.
Further, the oil filter is a sheet type oil filter or a bowl type oil filter.
Furthermore, the inner side wall of the rear end of the valve shell is fixed with a dustproof plug.
The beneficial effects of the utility model reside in that: the regulating valve of the utility model can reduce the manufacturing cost, improve the strength of the valve and prolong the service life of the valve by compounding the copper alloy layer on the inner surface of the valve shell; the imitation gold coating is electroplated on the outer surface of the valve shell, so that the valve is not rusted and has good corrosion resistance, and the service life of the valve is greatly prolonged. The utility model can realize the comprehensive damping characteristic of the valve by installing the damper on the inner side wall of the front end of the valve core sleeve, change the working frequency of the valve and achieve different use purposes and effects; the utility model discloses a governing valve is strained through the front end installation oil at the attenuator for the filtration of hydraulic oil can prevent that the foreign particles in hydraulic oil from blockking up the aperture on the orifice plate of damping.
The utility model discloses a governing valve can change nominal pressure in the certain limit, and it is simple to adjust, and the flow is big, opens and close that the characteristic is good, stable performance, sealed reliable, small, compact structure, convenient to use, low in manufacturing cost, long service life.
Drawings
Fig. 1 is a sectional view of the present invention.
Fig. 2 is an exploded sectional view of the valve core sleeve and the valve core of the present invention.
Fig. 3 is a partial cross-sectional view of the valve housing of the present invention.
The reference signs are: 1-valve casing, 10-pressure regulating screw, 101-copper alloy layer, 102-imitation gold coating, 103-silicon nitride wear-resistant layer, 11-base, 12-compression spring, 13-spring seat, 14-overflow hole, 15-dustproof plug, 2-valve core cover, 21-damper, 22-oil filter, 23-circular groove, 24-circular gap, 3-valve core, 31-first hollow cylinder, 32-second hollow cylinder, 41-first sealing ring, 42-second sealing ring.
Detailed Description
In order to facilitate the understanding of those skilled in the art, the present invention will be further described with reference to the following examples and accompanying fig. 1-3, which are not intended to limit the present invention.
Referring to fig. 1-3, a regulating valve capable of changing nominal pressure comprises a valve body, wherein the valve body comprises a valve casing 1 and a valve core sleeve 2 installed at one end of the valve casing 1, the valve core 3 is connected in the valve core sleeve 2 in a sliding manner, a base 11, a compression spring 12 and a spring seat 13 are sequentially arranged in the valve casing 1, two ends of the compression spring 12 are respectively abutted against the base 11 and the spring seat 13, one end of the spring seat 13 is fixedly connected with the valve core 3, the base 11 is provided with a pressure regulating screw 10, and the side wall of the valve casing 1 is provided with at least one overflow hole 14 penetrating through; the inner surface of the valve casing 1 is compounded with a copper alloy layer 101, the outer surface of the valve casing 1 is electroplated with a gold imitation plating layer 102, and the inner side wall of the front end of the valve core sleeve 2 is sequentially provided with a damper 21 and an oil filter 22.
The regulating valve of the utility model can reduce the manufacturing cost, improve the strength of the valve and prolong the service life of the valve by compounding the copper alloy layer 101 on the inner surface of the valve shell 1; the imitation gold plating layer 102 is electroplated on the outer surface of the valve shell 1, so that the valve is not rusted, has good corrosion resistance and greatly prolongs the service life of the valve. The utility model discloses a governing valve can realize the comprehensive damping characteristic of valve through install attenuator 21 at the inside wall of case cover 2 front end, changes the operating frequency of valve, reaches different use purpose and effect; the utility model discloses a governing valve is strained 22 through the front end installation oil at attenuator 21 for the filtration of hydraulic oil can prevent that the foreign particles in hydraulic oil from blockking up the aperture on the orifice plate of damping.
The utility model discloses a governing valve can change nominal pressure in the certain limit, and it is simple to adjust, and the flow is big, opens and close that the characteristic is good, stable performance, sealed reliable, small, compact structure, convenient to use, low in manufacturing cost, long service life.
The utility model discloses a theory of operation does: when the liquid pressure in the pipeline is lower than the rated pressure, the valve core 3 closes the valve port due to the action of the compression spring 12, and the liquid can not flow outwards; when the pressure of the liquid in the pipeline is higher than the rated pressure, the liquid pushes the valve core 3 to move backwards through the valve hole in the valve core sleeve 2, the compression spring 12 is compressed, the valve port is opened, and the liquid overflows through an overflow hole 14 in the valve shell 1, so that the pressure of the system is ensured to be stable; the magnitude of the rated pressure can be realized by adjusting the pressure adjusting screw 10.
The number of the overflow holes 14 is four to eight, and four to eight overflow holes 14 are annularly arrayed on the side wall of the front end of the valve housing 1.
In this embodiment, a first sealing ring 41 is disposed between the valve core 3 and the valve core sleeve 2. The first sealing ring 41 is used for sealing between the valve core 3 and the valve core sleeve 2, and preferably, the first sealing ring 41 is an O-shaped sealing ring.
A first gasket and a second gasket are respectively disposed at front and rear ends of the first gasket 41. The provision of the first and second gaskets may reduce friction, prevent leakage, isolate, prevent loosening and distribute pressure.
The outer side wall of the front end of the valve core sleeve 2 is provided with a second sealing ring 42. The second sealing ring 42 is used for sealing the pipeline when the valve core sleeve 2 is installed. Preferably, the second sealing ring 42 is an O-ring.
In this embodiment, the first seal ring 41 and the second seal ring 42 are each any one of a silicone seal ring, a fluororubber seal ring, a nitrile rubber seal ring, a natural rubber seal ring, and a polytetrafluoroethylene seal ring. By adopting the above sealing ring, the utility model, it is sealed effectual, resistant oil, high temperature resistant, corrosion-resistant, long service life. Preferably, the first seal ring 41 and the second seal ring 42 are both fluorine rubber seal rings. The working temperature of the fluororubber sealing ring is-40 ℃ and 200 ℃, and the fluororubber sealing ring can resist fuel oil, high temperature, Freon, superheated water and steam and has excellent chemical corrosion resistance.
In this embodiment, the valve element 3 is in a shape of a Chinese character 'tu', the valve element 3 includes a first hollow cylinder 31 fixed to one end of the spring seat 13 and a second hollow cylinder 32 fixed to one end of the first hollow cylinder 31, an outer diameter of the second hollow cylinder 32 is larger than an outer diameter of the first hollow cylinder 31, and an inner diameter of the second hollow cylinder 32 is larger than an inner diameter of the first hollow cylinder 31. By adopting the above structure, the utility model for the governing valve is opened and close that the characteristic is good, the stable performance is sealed reliable, small, compact structure.
In this embodiment, a circular groove 23 for accommodating the valve core 3 is formed in the valve core sleeve 2, a circular notch 24 is formed at one end of the circular groove 23, an inner diameter of the circular groove 23 is equal to an outer diameter of the second hollow cylinder 32, and an inner diameter of the circular notch 24 is equal to an outer diameter of the first hollow cylinder 31. By adopting the above structure, the utility model for the governing valve is opened and close that the characteristic is good, the stable performance is sealed reliable, small, compact structure.
In this embodiment, the compression spring 12 is a cylindrical spring. Another preferred embodiment of the present invention is: the compression spring 12 is a disc spring. The utility model discloses an adopt cylindrical spring or belleville spring, its compression is effectual, and corrosion resistance is good, long service life. Preferably, the compression spring 12 is a disc spring assembly composed of a plurality of disc springs. The utility model discloses an adopt the belleville spring subassembly of a plurality of belleville spring combinations, its bearing capacity is strong, low in manufacturing cost.
In this embodiment, the damper 21 is a laminate damper. Another preferred embodiment of the present invention is: the damper 21 is an orifice plate damper. The utility model discloses an adopt plywood attenuator or orifice plate attenuator, its damping is effectual, can realize the comprehensive damping characteristic of valve, changes the operating frequency of valve.
In this embodiment, the oil filter 22 is a plate oil filter. Another preferred embodiment of the present invention is: the oil filter 22 is a bowl-shaped oil filter. The utility model discloses an adopt piece-type oil to strain or bowl type oil to strain, its filter effect is good, can prevent that the foreign particles in the hydraulic oil from blockking up the aperture on the orifice plate of damping.
In this embodiment, the inner side wall of the rear end of the valve housing 1 is fixed with a dust plug 15. The utility model discloses an adopt dustproof stifled 15, can prevent that the dust from getting into the regulation that influences pressure regulating screw 10 in the valve casing 1.
The outer surface of the imitation gold plating layer 102 is electroplated with a silicon nitride wear-resistant layer 103 with the thickness of 10-50 mu m. The utility model has the advantages that the silicon nitride wear-resistant layer 103 is electroplated on the outer surface of the gold-like coating 102, the wear-resistant effect is good, and the service life is long.
The above-mentioned embodiment is the utility model discloses the implementation of preferred, in addition, the utility model discloses can also realize by other modes, not deviating from the utility model discloses any obvious replacement is all within the protection scope under the prerequisite of design.
Claims (9)
1. A can change governing valve of nominal pressure, includes the valve body, its characterized in that: the valve body comprises a valve shell and a valve core sleeve arranged at one end of the valve shell, the valve core is connected in the valve core sleeve in a sliding manner, a base, a compression spring and a spring seat are sequentially arranged in the valve shell, two ends of the compression spring are respectively abutted against the base and the spring seat, one end of the spring seat is fixedly connected with the valve core, the base is provided with a pressure regulating screw, and the side wall of the valve shell is provided with at least one overflow hole penetrating through the inner surface and; the internal surface complex of valve casing has the copper alloy-layer, and the surface electroplating of valve casing has imitative gold coating, the inside wall of case cover front end is equipped with attenuator and oil in proper order and strains.
2. A variable nominal pressure regulator valve as defined in claim 1 wherein: a first sealing ring is arranged between the valve core and the valve core sleeve; and a second sealing ring is arranged on the outer side wall of the front end of the valve core sleeve.
3. A variable nominal pressure regulator valve as claimed in claim 2, wherein: the first sealing ring and the second sealing ring are any one of a silicon rubber sealing ring, a fluorine rubber sealing ring, a nitrile rubber sealing ring, a natural rubber sealing ring and a polytetrafluoroethylene sealing ring.
4. A variable nominal pressure regulator valve as defined in claim 1 wherein: the valve core is in a convex shape, the valve core comprises a first hollow cylinder fixed at one end of the spring seat and a second hollow cylinder fixed at one end of the first hollow cylinder, the outer diameter of the second hollow cylinder is larger than that of the first hollow cylinder, and the inner diameter of the second hollow cylinder is larger than that of the first hollow cylinder.
5. A variable nominal pressure regulator valve as defined in claim 4 wherein: the valve core sleeve is internally provided with a circular groove for containing the valve core, one end of the circular groove is provided with a circular notch, the inner diameter of the circular groove is equal to the outer diameter of the second hollow cylinder, and the inner diameter of the circular notch is equal to the outer diameter of the first hollow cylinder.
6. A variable nominal pressure regulator valve as defined in claim 1 wherein: the compression spring is a cylindrical spring or a disc spring.
7. A variable nominal pressure regulator valve as defined in claim 1 wherein: the damper is a laminate damper or an orifice plate damper.
8. A variable nominal pressure regulator valve as defined in claim 1 wherein: the oil filter is a sheet oil filter or a bowl oil filter.
9. A variable nominal pressure regulator valve as defined in claim 1 wherein: the inside wall at valve casing rear end is fixed with dustproof stifled.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922159345.2U CN211175522U (en) | 2019-12-05 | 2019-12-05 | Regulating valve capable of changing nominal pressure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922159345.2U CN211175522U (en) | 2019-12-05 | 2019-12-05 | Regulating valve capable of changing nominal pressure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211175522U true CN211175522U (en) | 2020-08-04 |
Family
ID=71802552
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922159345.2U Expired - Fee Related CN211175522U (en) | 2019-12-05 | 2019-12-05 | Regulating valve capable of changing nominal pressure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211175522U (en) |
-
2019
- 2019-12-05 CN CN201922159345.2U patent/CN211175522U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200804 |