CN205013694U - Poor little flow control valve of BDO high pressure - Google Patents
Poor little flow control valve of BDO high pressure Download PDFInfo
- Publication number
- CN205013694U CN205013694U CN201520627462.6U CN201520627462U CN205013694U CN 205013694 U CN205013694 U CN 205013694U CN 201520627462 U CN201520627462 U CN 201520627462U CN 205013694 U CN205013694 U CN 205013694U
- Authority
- CN
- China
- Prior art keywords
- valve
- filler
- core body
- high pressure
- spool
- 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
Links
Landscapes
- Valve Housings (AREA)
Abstract
The utility model relates to a poor little flow control valve of BDO high pressure, the one end of valve gap and valve body rigid coupling, the disk seat is installed in the inside of valve body, the one end of case run through the installation valve gap and stretch into the valve body inside with disk seat clearance fit, the case is formed integratively by first core, multistage formula case and screw thread case coaxial coupling, in the valve body, at the periphery of multistage formula case clearance fit multistage formula sleeve still, in the other end of valve gap rigid coupling gland still, multi -disc disc spring in dynamic dish spring stop collar, is still installed to the dynamic dish spring stop collar of installation between packing with hexagon nut and gland between the filler is with hexagon nut and gland. The utility model discloses a set up screw case, multistage formula sleeve and multistage formula case, make liquid medium realize striking many times in this governing valve, make this governing valve can be poor at the high pressure, realize stable adjusting function and longer life under the operating mode of low discharge, filled in that domestic and international high pressure is poor, little flow control valve's applied blank.
Description
Technical field
The present invention relates to valve field, particularly relate to BDO High Pressure Difference control valve for small flows.
Background technique
BDO is butyleneglycol, its Organic Chemicals as a kind of particular importance and fine chemical material, and no matter be widely used in petrochemical industry is produced, be engineering plastics or fiber, and even field of solvents, all needs to relate to BDO.At present, waste liquid can be produced in production BDO, this waste liquid needs accurately to control, due to this place's pressure reduction high (maximal pressure is poor: 29.4MPaG), control flow is smaller, normal control flow amount 230KG/H, 0.0156 is only had by the minimum of computation CV value calculating valve, therefore it is high for the technical requirements of valve, this valve was monopolized by external producer always in the past, high and delivery date and the later stage service of external product price valency is difficult to meet production actual demand, most importantly external life of product is substantially use 1 month, sometimes within about 1 week, just there is the interior leakage of valve, device is caused to stop, therefore the quality of above-mentioned valve has a strong impact on the output of BDO, so in the urgent need to relating to BDO High Pressure Difference control valve for small flows.
Summary of the invention
The applicant is for above-mentioned existing issue, be studied improvement, a kind of BDO High Pressure Difference control valve for small flows is provided, liquid medium realizes multiple impact in this modulating valve, make this modulating valve can realize stable adjusting function and longer working life under the operating mode of High Pressure Difference, small flow, fill up the application blank of domestic and international High Pressure Difference, control valve for small flows.
The technical solution adopted in the present invention is as follows:
BDO High Pressure Difference control valve for small flows, one end of valve gap by valve gap hexagon nut and valve gap stud and valve body affixed, valve seat is arranged on the inside of described valve body, one end of spool is run through installation valve gap and stretches into valve inner and valve seat Spielpassung, spool is coaxially connected to form one by the first core body, multi-section type spool and screw thread spool, in valve body, the also Spielpassung multi-section type sleeve in the periphery of multi-section type spool; In valve gap, in the periphery of the first core body, also filler assembly is installed; In the other end of valve gap also by filler hexagon nut and the affixed Gland of filler stud, dynamic disc spring stop collar is installed between filler hexagon nut and Gland, in dynamic disc spring stop collar, between filler hexagon nut and Gland, multi-disc butterfly spring is also installed.
Its further technological scheme is:
Described multi-section type spool comprises the second core body, along the circumferential direction stretch out in the periphery of described second core body formation first flange, first flange arrangement is multiple and be arranged at intervals on the second core body each other, described second core body and the first flange concentric and coaxially arranged;
The diameter of described first flange is greater than the diameter of the second core body;
Described screw thread spool comprises the 3rd core body with valve seat Spielpassung, along the circumferential direction offer left-handed thread runner and right-handed thread runner in the periphery of described 3rd core body, described left-handed thread runner and right-handed thread runner symmetry centered by the axle center of described 3rd core body is offered;
Described left-handed thread runner and right-handed thread runner are at same start position in opposite direction around the periphery being opened in described 3rd core body, and described left-handed thread runner and right-handed thread runner form multiple crossing point A positioned opposite each other from top to bottom along the periphery of described 3rd core body; The flow channel depth of described left-handed thread runner and right-handed thread runner is from top to bottom in increasing progressively;
Described multi-section type sleeve comprises inner sleeve and outer sleeve, is located by connecting between described inner sleeve and outer sleeve by locating stud, and the periphery along described inner sleeve offers multiple window from top to bottom;
Described screw thread spool and valve seat and the matching gap between described multi-section type spool and multi-section type sleeve are not more than 0.01mm;
Described filler assembly comprises organizes filler more, filler spacer is set in filler, the bottom being positioned at foot filler arranges matrix liner, the top being positioned at the topmost part filler arranges filler pressing sleeve, and described filler pressing sleeve, filler, filler spacer and filler precipitation is all between the inwall and the outer wall of the first core body of valve gap;
In the joint of described second core body and the first core body, the second flange for Spielpassung valve body is also set;
In the joint of described valve body and valve seat, also valve washer is set, described screw thread spool, multi-section type spool and the first core body all adopt cemented carbide STL12 to make, described valve seat adopts stainless steel built-up welding STL12 to make, and described multi-section type sleeve adopts Inconel718 material to make.
Beneficial effect of the present invention is as follows:
(1) screw thread spool is by left-handed thread runner and right-handed thread runner interlaced arrangement, liquid medium is made to form repeatedly high-speed impact at the crossing point through left-handed thread runner and right-handed thread runner, often clash into 4 times that are once just equivalent to the original mazy type chip corners shock of loss, the flow channel depth of left-handed thread runner and right-handed thread runner is from top to bottom in increasing progressively gradually, and the thread pitch of left-handed thread runner and right-handed thread runner also can design arbitrarily, according to the controlled magnitude of pressure differential of reality, design different valve seat thickness, thus obtain the shock number of times that liquid medium is different in valve seat, completely organize the adjustment object of different High Pressure Difference, flow channel depth increases progressively the negotiability that can control under different opening, thus control small flow.
(2) multi-section type sleeve is arranged with the combination of multi-section type spool and can be controlled different small flow medium requirements, the window of multi-section type sleeve is designed to less width according to calculation requirement, according to practical condition design window quantity, make liquid medium turning number of times in flow process increase or reduce, effectively meet the differential pressure requirements of more than 400bar.
(3) matching gap between screw thread spool and valve seat, matching gap between multi-section type spool and multi-section type sleeve, within being strict controlled in 0.01mm, degree of finish is better than Ra1.6, thus guarantees the requirement of High Pressure Difference small flow.
(4) spool entirety uses cemented carbide STL12, and valve seat adopts stainless steel built-up welding STL12, multi-section type sleeve adopts Inconel718 material, and highest hardness can reach HRC48, meets washing away of High Pressure Difference medium, thus extends the working life of valve.
(5) dynamic seal structure taked by filler, a disc spring stop collar is set under stuffing nut, ensure that the compensating action of butterfly spring in dynamic seal (packing) on the one hand, on the other hand stop collar be arranged so that butterfly spring decrement is under control, can not compression limit more than 75%, cause the phenomenon of butterfly spring deformation failure to occur under preventing butterfly spring to be in limited compression state for a long time, ensure that the sealing effect of filler part under ultrahigh pressure.
Accompanying drawing explanation
Fig. 1 is overall structure schematic diagram of the present invention.
Fig. 2 is the schematic diagram that in the present invention, Thread valve core ribbon has a left-handed thread runner.
Fig. 3 is the structural representation of screw thread spool in the present invention.
Fig. 4 is that in the present invention, liquid medium shows in the flow direction of multi-section type spool, screw thread spool and multi-section type sleeve
Intention.
Wherein: 1, valve body; 2, screw thread spool; 201, left-handed thread runner; 202, right-handed thread runner; 3, valve washer; 4, valve seat; 5, inner sleeve; 6, outer sleeve; 7, window; 8, locating stud; 9, valve gap; 901, valve gap hexagon nut; 902, valve gap stud; 10, matrix liner; 11, filler spacer; 12, filler; 13, filler pressing sleeve; 14, Gland; 15, butterfly spring; 16, dynamic disc spring stop collar; 17, filler hexagon nut; 18, filler stud; 19, multi-section type spool; 1901, the first flange; 20, the first core body; 21, the second flange; 22, the second core body; 23, the 3rd core body.
Embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described.
As shown in Figure 1, BDO High Pressure Difference control valve for small flows, comprise valve gap 9, one end of valve gap 9 by valve gap hexagon nut 901 and valve gap stud 902 affixed with valve body 1, valve seat 4 is arranged on the inside of valve body 1, and one end of spool is run through installation valve gap 9 and stretched into valve body 1 inside and valve seat 4 Spielpassung, and spool is coaxially connected to form one by the first core body 20, multi-section type spool 19 and screw thread spool 2, in valve body 1, the also Spielpassung multi-section type sleeve in the periphery of multi-section type spool 19; In valve gap 9, in the periphery of the first core body 20, also filler assembly is installed, as shown in Figure 1, filler assembly comprises many group fillers 12, filler spacer 11 is set in filler 12, the bottom being positioned at foot filler 12 arranges matrix liner 10, the top being positioned at the topmost part filler 12 arranges filler pressing sleeve 13, and filler pressing sleeve 13, filler 12, filler spacer 11 and filler precipitation 10 is all between the inwall and the outer wall of the first core body 20 of valve gap 9.In the other end of valve gap 9 also by filler hexagon nut 17 and the affixed Gland 14 of filler stud 18, dynamic disc spring stop collar 16 is installed between filler hexagon nut 17 and Gland 14, in dynamic disc spring stop collar 16, between filler hexagon nut 17 and Gland 14, multi-disc butterfly spring 15 is also being installed, dynamic seal (packing) when this dynamic disc spring stop collar 16 and butterfly spring 15 1 aspect can ensure that pressure medium floats, dynamically the use of disc spring stop collar 16 can guarantee that the compression control of spring is in elastic range on the other hand, avoid excessive butterfly spring 15 failure phenomenon caused of butterfly spring 15 decrement, thus ensure the high pressure sealing at filler place.
As shown in Figure 1, above-mentioned multi-section type spool 19 comprises the second core body 22, along the circumferential direction stretch out in the periphery of the second core body 22 formation first flange 1901, first flange 1901 is arranged multiple and is arranged at intervals on the second core body 22 each other, second core body 22 and the first flange 1901 concentric and coaxially arranged, the diameter of above-mentioned first flange 1901 is greater than the diameter of the second core body 22.
As shown in Figure 1, Figure 2 and Figure 3, screw thread spool 2 comprises the 3rd core body 23 with valve seat 4 Spielpassung, along the circumferential direction offer left-handed thread runner 201 and right-handed thread runner 202 in the periphery of the 3rd core body 23, left-handed thread runner 201 and right-handed thread runner 202 symmetry centered by the axle center of the 3rd core body 23 is offered.Left-handed thread runner 201 and right-handed thread runner 202 are at same start position in opposite direction around the periphery being opened in the 3rd core body 23, and left-handed thread runner 201 and right-handed thread runner 202 form multiple crossing point A positioned opposite each other from top to bottom along the periphery of the 3rd core body 23; The flow channel depth of left-handed thread runner 201 and right-handed thread runner 202 is from top to bottom in increasing progressively, by the flow channel depth of left-handed thread runner 201 with right-handed thread runner 202 is designed to increase progressively, the valve opening under different negotiability can be controlled, realize the most reasonable aperture under operating mode flow, make valve event steadily reliable, work under avoiding low aperture.
As shown in Fig. 1 and Fig. 4, multi-section type sleeve comprises inner sleeve 5 and outer sleeve 6, is located by connecting between inner sleeve 5 and outer sleeve 6 by locating stud 8, and the periphery along inner sleeve 5 offers multiple window 7 from top to bottom.
As shown in Figure 1, above-mentioned screw thread spool 2 and valve seat 4 and the matching gap between multi-section type spool 19 and multi-section type sleeve are not more than 0.01mm, and degree of finish is better than Ra1.6.In the joint of above-mentioned second core body 22 and the first core body 20, the second flange 21 for Spielpassung valve body 1 is also set.In valve body 1 and the joint of valve seat 4, valve washer 3 is also set, screw thread spool 2, multi-section type spool 19 and the first core body 20 all adopt cemented carbide STL12 to make, valve seat 4 adopts stainless steel built-up welding STL12 to make, multi-section type sleeve adopts Inconel718 material (the precipitation hardenable nichrome containing niobium, molybdenum) to make, and its highest hardness can reach HRC48.
Specific works process of the present invention is as follows:
As Fig. 1, shown in Fig. 4, liquid medium is entered by the runner mouth on multi-section type sleeve and contacts with multi-section type spool 19, because on the first flange 1901 that multi-section type spool 19 is arranged and multi-section type sleeve, the window 7 offered makes the flow direction of liquid medium bend in flow process and forms 4 turnings, as shown in Figure 4, liquid medium is forming 4 turnings after a window 7 and the first flange 1901, this window is designed to less width according to calculation requirement, thus control different small flow medium requirements, in this enforcement clever, window 7 and the first flange 1901 are designed to 4, liquid medium through multi-section type sleeve and multi-section type spool 19 time form 16 turnings altogether, then screw thread spool 2 is entered, as Fig. 2, shown in Fig. 3 and Fig. 4, liquid medium forms two-way and enters left-handed thread runner 201 and right-handed thread runner 202 respectively, two strands of liquid mediums continue when entering the crossing point A of left-handed thread runner 201 and right-handed thread runner 202 to form high-speed impact, then continue to advance along left-handed thread runner 201 and right-handed thread runner 202, until enter next crossing point A, after two strands of liquid mediums carry out multiple impact along the left-handed thread runner 201 of the 3rd core body 23 and right-handed thread runner 202 respectively, after flowing out valve seat 4 flow valves, liquid medium turning number of times after above-mentioned left-handed thread runner 201 and right-handed thread runner 202 is equivalent to be increased to 25 ~ 28 times, the differential pressure requirements of more than 400bar can be met.Liquid medium is after the repeatedly intersection of above multi-section type sleeve, multi-section type spool 19 and screw thread spool 2 is clashed into, and the pressure reduction of High Pressure Difference liquid medium and energy are consumed greatly, thus makes valve can bear High Pressure Difference impact.
More than describing is explanation of the invention, and be not the restriction to invention, limited range of the present invention is see claim, and when without prejudice to basic structure of the present invention, the present invention can do any type of amendment.
Claims (10)
1.BDO High Pressure Difference control valve for small flows, one end of valve gap (9) by valve gap hexagon nut (901) and valve gap stud (902) affixed with valve body (1), valve seat (4) is arranged on the inside of described valve body (1), it is characterized in that: installation valve gap (9) is run through in one end of spool, and stretch into valve body (1) inside and valve seat (4) Spielpassung, described spool is by the first core body (20), multi-section type spool (19) and screw thread spool (2) are coaxially connected to form one, in described valve body (1), at the periphery of multi-section type spool (19) also Spielpassung multi-section type sleeve, in described valve gap (9), in the periphery of described first core body (20), also filler assembly is installed, in the other end of described valve gap (9) also by filler hexagon nut (17) and filler stud (18) affixed Gland (14), between described filler hexagon nut (17) and Gland (14), dynamic disc spring stop collar (16) is installed, in described dynamic disc spring stop collar (16), between described filler hexagon nut (17) and Gland (14), multi-disc butterfly spring (15) is also installed.
2. BDO High Pressure Difference control valve for small flows as claimed in claim 1, it is characterized in that: described multi-section type spool (19) comprises the second core body (22), along the circumferential direction stretch out in the periphery of described second core body (22) formation first flange (1901), first flange (1901) is arranged multiple and is arranged at intervals on the second core body (22) each other, described second core body (22) and the first flange (1901) concentric and coaxially arranged.
3. BDO High Pressure Difference control valve for small flows as claimed in claim 2, is characterized in that: the diameter of described first flange (1901) is greater than the diameter of the second core body (22).
4. BDO High Pressure Difference control valve for small flows as claimed in claim 1, it is characterized in that: described screw thread spool (2) comprises the 3rd core body (23) with valve seat (4) Spielpassung, along the circumferential direction offer left-handed thread runner (201) and right-handed thread runner (202) in the periphery of described 3rd core body (23), described left-handed thread runner (201) and right-handed thread runner (202) symmetry centered by the axle center of described 3rd core body (23) is offered.
5. BDO High Pressure Difference control valve for small flows as claimed in claim 4, it is characterized in that: described left-handed thread runner (201) and right-handed thread runner (202) are at same start position in opposite direction around the periphery being opened in described 3rd core body (23), and described left-handed thread runner (201) and right-handed thread runner (202) form multiple crossing point A positioned opposite each other from top to bottom along the periphery of described 3rd core body (23); The flow channel depth of described left-handed thread runner (201) and right-handed thread runner (202) is from top to bottom in increasing progressively.
6. BDO High Pressure Difference control valve for small flows as claimed in claim 1, it is characterized in that: described multi-section type sleeve comprises inner sleeve (5) and outer sleeve (6), be located by connecting by locating stud (8) between described inner sleeve (5) and outer sleeve (6), the periphery along described inner sleeve (5) offers multiple window (7) from top to bottom.
7. BDO High Pressure Difference control valve for small flows as claimed in claim 1, is characterized in that: described screw thread spool (2) and valve seat (4) and the matching gap between described multi-section type spool (19) and multi-section type sleeve are not more than 0.01mm.
8. BDO High Pressure Difference control valve for small flows as claimed in claim 1, it is characterized in that: described filler assembly comprises organizes filler (12) more, filler spacer (11) is set in filler (12), the bottom being positioned at foot filler (12) arranges matrix liner (10), the top being positioned at the topmost part filler (12) arranges filler pressing sleeve (13), and described filler pressing sleeve (13), filler (12), filler spacer (11) and filler precipitation (10) are all positioned between the inwall of valve gap (9) and the outer wall of the first core body (20).
9. BDO High Pressure Difference control valve for small flows as claimed in claim 2, is characterized in that: also arrange the second flange (21) for Spielpassung valve body (1) in described second core body (22) and the joint of the first core body (20).
10. BDO High Pressure Difference control valve for small flows as claimed in claim 1, it is characterized in that: in described valve body (1) and the joint of valve seat (4), valve washer (3) is also set, described screw thread spool (2), multi-section type spool (19) and the first core body (20) all adopt cemented carbide STL12 to make, described valve seat (4) adopts stainless steel built-up welding STL12 to make, and described multi-section type sleeve adopts Inconel718 material to make.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520627462.6U CN205013694U (en) | 2015-08-19 | 2015-08-19 | Poor little flow control valve of BDO high pressure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520627462.6U CN205013694U (en) | 2015-08-19 | 2015-08-19 | Poor little flow control valve of BDO high pressure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205013694U true CN205013694U (en) | 2016-02-03 |
Family
ID=55212298
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520627462.6U Expired - Fee Related CN205013694U (en) | 2015-08-19 | 2015-08-19 | Poor little flow control valve of BDO high pressure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205013694U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
-
2015
- 2015-08-19 CN CN201520627462.6U patent/CN205013694U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105156688A (en) | High-pressure-difference and small-flow adjusting valve for BDO | |
| CN203335872U (en) | Secondary sealing stop valve | |
| CN104358885A (en) | High-pressure difference and high-flow rate adjustable ratio control valve | |
| CN205013694U (en) | Poor little flow control valve of BDO high pressure | |
| CN204267762U (en) | High Pressure Difference high-flow adjustable ratio control valve | |
| CN203035990U (en) | Horizontal micro-flow linear regulating valve | |
| CN205780952U (en) | Split type sleeve control valve | |
| CN207961624U (en) | T-type three-way ball valve | |
| CN201180845Y (en) | Plastic stop valve with improved structure | |
| CN206246731U (en) | Three-way control valve | |
| CN209818775U (en) | Anti-cavitation valve with sectional type flow characteristic | |
| CN207246427U (en) | A kind of valve internal sealing structure | |
| CN202790875U (en) | High-tightness gate valve | |
| CN202708138U (en) | Stop valve | |
| CN209130277U (en) | A kind of dedicated multiple-sealed valve stem equipment of spinning welding ball valve | |
| CN206234455U (en) | Stop valve | |
| CN204267742U (en) | Control valve for small flows | |
| CN205155278U (en) | Balanced high accuracy governing valve of bellows sealing cage | |
| CN209245283U (en) | Three-eccentric-butterfly-valve with metal sealing | |
| CN204610847U (en) | The bidirectional balanced ring assembly of telescoping valve | |
| CN220302775U (en) | Bidirectional metal-pressing sealing butterfly valve | |
| CN218845171U (en) | Ball valve with good sealing performance | |
| CN205298644U (en) | Diaphragm valve | |
| CN203948775U (en) | Mazy type dropping valve | |
| CN210372130U (en) | Three-way antibiotic stop valve |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160203 Termination date: 20170819 |