CN203627964U - High-pressure micro-flow string type regulating valve - Google Patents
High-pressure micro-flow string type regulating valve Download PDFInfo
- Publication number
- CN203627964U CN203627964U CN201320737624.2U CN201320737624U CN203627964U CN 203627964 U CN203627964 U CN 203627964U CN 201320737624 U CN201320737624 U CN 201320737624U CN 203627964 U CN203627964 U CN 203627964U
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- China
- Prior art keywords
- valve
- valve seat
- upper cover
- core assembly
- valve body
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- 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 - Lifetime
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- 230000001105 regulatory effect Effects 0.000 title abstract description 10
- 210000004907 gland Anatomy 0.000 claims abstract description 23
- 239000000945 filler Substances 0.000 claims description 10
- 238000012856 packing Methods 0.000 abstract 9
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 230000007363 regulatory process Effects 0.000 abstract 1
- 238000007789 sealing Methods 0.000 description 10
- 238000000034 method Methods 0.000 description 8
- 230000006837 decompression Effects 0.000 description 7
- 238000004517 catalytic hydrocracking Methods 0.000 description 5
- 230000006378 damage Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
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- 238000005984 hydrogenation reaction Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 241001269238 Data Species 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 239000004793 Polystyrene Substances 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 239000005864 Sulphur Substances 0.000 description 1
- 150000004945 aromatic hydrocarbons Chemical class 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
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- 239000002537 cosmetic Substances 0.000 description 1
- 150000001924 cycloalkanes Chemical class 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 238000005194 fractionation Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
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Abstract
The utility model relates to a regulating valve, in particular to a high-pressure micro-flow string type regulating valve, and belongs to the technical field of control valves. The high-pressure micro-flow string type regulating valve comprises a valve body, a valve seat is arranged in the valve body, a second gasket is arranged between the valve body and the valve seat, and a guide pressing sleeve is arranged at the upper end of the valve seat. The upper end of the valve body is connected with an upper cover through a bolt, the guide pressing sleeve and the valve seat are pressed in the valve body through the upper cover, and a first gasket is arranged between the valve body and the upper cover. The upper end of the upper cover is connected with a packing pressing plate through a bolt. A valve element component is matched to be arranged in the valve seat, and the upper end of the valve element component penetrates through the guide pressing sleeve and the upper cover and stretches out of the packing pressing plate. Packing is arranged between the valve element component and the upper cover, a packing gland is arranged between the packing and the packing pressing plate, and the packing gland and the packing are compressed by the packing pressing plate. The string type structure is adopted by the regulating valve, the multistage depressurization function is achieved, medium flowing speed is reduced, parts inside the valve are effectively protected, and valve noise is lowered. Meanwhile, the phenomenon that due to the fact that the throttling area is small in the micro-flow regulating process, the valve is blocked can be avoided. The double-guide structure is adopted by the valve element component, the valve element component is prevented from being bent and deformed, valve regulating stability is improved, and the service life of the valve is prolonged.
Description
Technical field
The utility model relates to a kind of modulating valve, and a kind of high pressure tiny flow quantity string data modulating valve, belongs to control valve technical field specifically.
Background technique
Hydrocracking process is as the main technique methods of oil refining industry, and its conversion ratio still has 10%～40% unconverted product conventionally in 60%～90% scope, is known as hydrocracking tail oil, is the by-product of hydrocracking unit.At present, domestic many oil refinerys well do not utilize for this part tail oil, are used to greatly device circulation, cause the actual treatment ability of device to decline, thereby have reduced the manufacturing efficiency of device, have affected the economic benefit of oil refinery.
The extraordinary oily process units of long distillate (flexibility) is take hydrocracking tail oil and hydrogen as main raw material, adopt Hydrogenation, remove Determination of Trace Sulfur, nitrogen, oxygen in feedstock oil, and aromatic hydrocarbons is converted into cycloalkane, then by the each trade mark white oil of precision fractionation explained hereafter product.Be widely used in the industries such as polystyrene production, cosmetics, food, medicine weaving, market demand breach is larger.
There is water and H
2when S operating mode, easily cause metal sulfuration stress cracking (SSC) and stress corrosion cracking (SCC).Valve must meet anti-sulphur requirement, meets NACE MR0175 standard, and the heat treatment method of the various metallic material to valve use, hardness, mechanical property etc. have proposed requirement.
High score oil and sour water etc. that the reaction of hydrocracking tail oil high-pressure hydrogenation produces, maximum pressure reaches 2500Lb, and the highest adjusting pressure reduction can reach 17MPa, and peak rate of flow is less than 2t/h, has water and micro-H in medium
2s, traditional modulating valve cannot normally be worked under so high pressure reduction, and trim material need meet NACE MR0175 requirement, and hardness number is general≤HRC22, trim very easily suffers erosion damage, cannot meet tiny flow quantity and regulate; Labyrinth type multilevel decompression modulating valve can be controlled High Pressure Difference velocity of medium, but labyrinth group runner little, turn round manyly, the utmost point is not suitable for high viscosity, impure medium operating mode.
Summary of the invention
The purpose of this utility model is to overcome above-mentioned deficiency, thereby a kind of high pressure tiny flow quantity string data modulating valve that meets High Pressure Difference, anti-plugging, tiny flow quantity control is provided.
The technological scheme providing according to the utility model, high pressure tiny flow quantity string data modulating valve comprises valve body, it is characterized in that: in valve body, be provided with valve seat, be provided with the second pad between valve body and valve seat, valve seat upper end is provided with guiding gland; Valve body upper end is bolted upper cover, and upper cover is pressed on guiding gland, valve seat in valve body; Between valve body and upper cover, be provided with the first pad, upper cover upper end is bolted hold-down grid; In valve seat, coordinate mangetic core assembly is installed, hold-down grid is stretched out through guiding gland, upper cover in mangetic core assembly upper end; Between mangetic core assembly and upper cover, be provided with filler, between filler and hold-down grid, be provided with Gland, compress Gland and filler by hold-down grid.
Further, be provided with multiple openings and multiple throttle orifice in described valve seat, opening and throttle orifice be between the upper and lower every setting, mangetic core assembly be provided with valve seat on throttle orifice multiple adjusting curved surfaces of corresponding matching one by one.
Further, described mangetic core assembly bottom is provided with the lower guide rod matching with the pilot hole on valve seat.
Further, the end of described throttle orifice is provided with valve seat conical seal (contact) face, and mangetic core assembly upper end regulates the end of curved surface to be provided with the spool conical seal (contact) face matching with the valve seat conical seal (contact) face on valve seat.
Further, described mangetic core assembly middle part is provided with guide rod, and upper guide rod coordinates guiding with guiding gland inner chamber.
Compared with the prior art the utility model has the following advantages:
1. valve seat has multiple stack string data throttle orifices, and throttle orifice is connected mutually, the medium of the valve seat that can make to flow through at valve base cavity through volume convergent-divergent repeatedly, realize multilevel decompression, control media flow velocity, avoids medium to produce cavitation phenomenon or high flow rate dielectric breakdown trim, reduces valve noise simultaneously;
2. mangetic core assembly has multiple stack string datas adjusting curved surfaces, and each string data regulates curved surface consistent, all can control the flow of medium, and the destruction of single adjusting curved surface can not affect the integrally-regulated performance of valve, has extended the working life of mangetic core assembly;
3. valve seat and mangetic core assembly only have a sealing surface, sealing effect is better, and sealing surface is all in the afterbody of multilevel decompression, and velocity of medium has been down to minimum, avoid the destruction of high flow rate medium to mangetic core assembly sealing surface, sealing surface of seat, guaranteed the sealability of valve;
4. due to the structural feature of mangetic core assembly and valve seat, can realize multilevel decompression function, under the condition that meets identical negotiability, the orifice size of valve seat and mangetic core assembly increases, and while avoiding valve tiny flow quantity to regulate, orifice size is too small, and blocking phenomenon appears in valve;
5. mangetic core assembly has dual-guiding structure, regulates the upper and lower end of curved surface respectively to have a guide rod respectively at string data, lower guide rod and valve seat pilot hole guiding, upper guide rod and guiding gland inner chamber guiding, guide effect is better, avoids mangetic core assembly bending deflection, improves valve regulated stability.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation.
Fig. 2 is A place enlarged view in Fig. 1.
Description of reference numerals: 1-valve body, 2-valve seat, 2.1-opening, 2.2-throttle orifice, 2.3-valve seat conical seal (contact) face, 2.4-pilot hole, 3-mangetic core assembly, 3.1-regulate guide rod under curved surface, 3.2-spool conical seal (contact) face, 3.3-, the upper guide rod of 3.4-, 4-guiding gland, 5-upper cover, 6-filler, 7-Gland, 8-hold-down grid, 9-the first pad, 10-the second pad.
Embodiment
The utility model is further described in connection with the embodiment in accompanying drawing below:
As shown in Figure 1 and 2, the utility model mainly comprises valve body 1, is provided with valve seat 2 in valve body 1, is provided with the second pad 10 between valve body 1 and valve seat 2, and valve seat 2 upper ends are provided with guiding gland 4.Valve body 1 upper end is bolted upper cover 5, and upper cover 5 is pressed on guiding gland 4, valve seat 2 in valve body 1, is provided with the first pad 9 between valve body 1 and upper cover 5.
Described upper cover 5 upper ends are bolted hold-down grid 8.Spool 3 is installed in the interior cooperation of valve seat 2, and hold-down grid 8 is stretched out through guiding gland 4, upper cover 5 in spool 3 upper ends.Between spool 3 and upper cover 5, be provided with filler 6, between filler 6 and hold-down grid 8, be provided with Gland 7, compress Gland 7 and filler 6 by hold-down grid 8.
As shown in Figure 2, be provided with multiple openings 2.1 and multiple throttle orifice 2.2 in described valve seat 2, opening 2.1 and throttle orifice 2.2 are between the upper and lower every setting, and the valve seat 2 topmost end of throttle orifice 2.2 is provided with valve seat conical seal (contact) face 2.3.
Described mangetic core assembly 3 be provided with valve seat 2 on throttle orifice 2.2 multiple adjusting curved surfaces 3.1 of corresponding matching one by one, mangetic core assembly 3 regulates the end of curved surface 3.1 to be provided with the spool conical seal (contact) face 3.2 matching with the valve seat conical seal (contact) face 2.3 on valve seat 2 topmost, and mangetic core assembly 3 bottoms are provided with the lower guide rod 3.3 matching with the pilot hole 2.4 on valve seat 2.
Working principle of the present utility model is as follows:
Medium enters valve body 1 inner chamber from the entrance of modulating valve, flows to as low in and high out, by valve seat 2 and the relative displacement of mangetic core assembly 3, rate-of flow is controlled, and reaches the flow that meets technique, enters next technological process.
The utility model adopts the string data regulation structure of valve seat 2 and mangetic core assembly 3, by throttle orifice one to one and regulate curved surface, make medium in valve seat 2 inner chambers through volume convergent-divergent repeatedly, realize multilevel decompression function, reduce step by step velocity of medium, avoid occurring cavitation phenomenon or high flow rate dielectric breakdown trim, reduce valve noise simultaneously.
The string data structure that the utility model adopts valve seat 2 and mangetic core assembly 3, realizes multilevel decompression function, relatively makes valve seat 2 and the orifice size of mangetic core assembly 3 increase, and while avoiding valve tiny flow quantity to regulate, orifice size is too small, occurs valve blockage phenomenon.
The utility model adopts mangetic core assembly 3 string data regulation structures, makes mangetic core assembly 3 carry out repeatedly flow control to circulation medium, avoids the single adjusting curved surface of mangetic core assembly 3 to destroy, and affects integrally-regulated performance, extends the working life of mangetic core assembly 3.
The utility model adopts valve seat, mangetic core assembly list sealing configuration, sealing effect is better, and sealing surface is all in the afterbody of multilevel decompression, and velocity of medium has been down to minimum, avoid the destruction of high flow rate medium to mangetic core assembly sealing surface, sealing surface of seat, guaranteed the sealability of valve.
The utility model adopts mangetic core assembly 3 dual-guiding structures, is equipped with guide rod at the adjusting curved surface upper and lower end of mangetic core assembly 3, with the pilot hole of valve seat 2, the inner chamber guiding of guiding gland 4, avoids mangetic core assembly 3 bending deflections respectively, improves valve regulated stability.
Claims (5)
1. a high pressure tiny flow quantity string data modulating valve, comprises valve body (1), it is characterized in that: in valve body (1), be provided with valve seat (2), between valve body (1) and valve seat (2), be provided with the second pad (10), valve seat (2) upper end is provided with guiding gland (4); Valve body (1) upper end is bolted upper cover (5), and will lead gland (4), valve seat (2) of upper cover (5) is pressed in valve body (1); Between valve body (1) and upper cover (5), be provided with the first pad (9), upper cover (5) upper end is bolted hold-down grid (8); In valve seat (2), coordinate mangetic core assembly (3) is installed, hold-down grid (8) is stretched out through guiding gland (4), upper cover (5) in mangetic core assembly (3) upper end; Between mangetic core assembly (3) and upper cover (5), be provided with filler (6), between filler (6) and hold-down grid (8), be provided with Gland (7), compress Gland (7) and filler (6) by hold-down grid (8).
2. high pressure tiny flow quantity string data modulating valve as claimed in claim 1, it is characterized in that: in described valve seat (2), be provided with multiple openings (2.1) and multiple throttle orifice (2.2), opening (2.1) and throttle orifice (2.2) be between the upper and lower every setting, mangetic core assembly (3) be provided with valve seat (2) on throttle orifice (2.2) multiple adjusting curved surfaces (3.1) of corresponding matching one by one.
3. high pressure tiny flow quantity string data modulating valve as claimed in claim 1, is characterized in that: described mangetic core assembly (3) bottom is provided with the lower guide rod (3.3) matching with the pilot hole (2.4) on valve seat (2).
4. high pressure tiny flow quantity string data modulating valve as claimed in claim 1, it is characterized in that: the end of described throttle orifice (2.2) is provided with valve seat conical seal (contact) face (2.3), mangetic core assembly (3) upper end regulates the end of curved surface (3.1) to be provided with the spool conical seal (contact) face (3.2) matching with the valve seat conical seal (contact) face (2.3) on valve seat (2).
5. high pressure tiny flow quantity string data modulating valve as claimed in claim 1, is characterized in that: described mangetic core assembly (3) middle part is provided with guide rod (3.4), and upper guide rod (3.4) coordinates guiding with guiding gland (4) inner chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320737624.2U CN203627964U (en) | 2013-11-20 | 2013-11-20 | High-pressure micro-flow string type regulating valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320737624.2U CN203627964U (en) | 2013-11-20 | 2013-11-20 | High-pressure micro-flow string type regulating valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203627964U true CN203627964U (en) | 2014-06-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320737624.2U Expired - Lifetime CN203627964U (en) | 2013-11-20 | 2013-11-20 | High-pressure micro-flow string type regulating valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203627964U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103591353A (en) * | 2013-11-20 | 2014-02-19 | 无锡智能自控工程股份有限公司 | High-pressure and micro-flow tandem type regulating valve |
| CN105156688A (en) * | 2015-08-19 | 2015-12-16 | 赛鼎工程有限公司 | High-pressure-difference and small-flow adjusting valve for BDO |
| CN109404606A (en) * | 2018-12-29 | 2019-03-01 | 吴忠仪表有限责任公司 | Pressure balance type high-precision high voltage difference control valve |
| CN113510046A (en) * | 2021-05-11 | 2021-10-19 | 宋鹏 | Chip dispensing connector |
| CN114688261A (en) * | 2022-02-25 | 2022-07-01 | 中石化四机石油机械有限公司 | Ultrahigh pressure safety throttle valve for testing high-pressure pump of petroleum drilling |
-
2013
- 2013-11-20 CN CN201320737624.2U patent/CN203627964U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103591353A (en) * | 2013-11-20 | 2014-02-19 | 无锡智能自控工程股份有限公司 | High-pressure and micro-flow tandem type regulating valve |
| CN103591353B (en) * | 2013-11-20 | 2015-12-30 | 无锡智能自控工程股份有限公司 | High pressure micro-flow tandem type modulating valve |
| CN105156688A (en) * | 2015-08-19 | 2015-12-16 | 赛鼎工程有限公司 | High-pressure-difference and small-flow adjusting valve for BDO |
| CN109404606A (en) * | 2018-12-29 | 2019-03-01 | 吴忠仪表有限责任公司 | Pressure balance type high-precision high voltage difference control valve |
| CN113510046A (en) * | 2021-05-11 | 2021-10-19 | 宋鹏 | Chip dispensing connector |
| CN114688261A (en) * | 2022-02-25 | 2022-07-01 | 中石化四机石油机械有限公司 | Ultrahigh pressure safety throttle valve for testing high-pressure pump of petroleum drilling |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140604 |