CN220416317U - Double-layer sleeve rotary valve - Google Patents
Double-layer sleeve rotary valve Download PDFInfo
- Publication number
- CN220416317U CN220416317U CN202321855794.0U CN202321855794U CN220416317U CN 220416317 U CN220416317 U CN 220416317U CN 202321855794 U CN202321855794 U CN 202321855794U CN 220416317 U CN220416317 U CN 220416317U
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- valve core
- pipe
- valve
- inner valve
- core tube
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- 238000007789 sealing Methods 0.000 claims abstract description 41
- 238000005192 partition Methods 0.000 claims description 12
- 230000007246 mechanism Effects 0.000 claims description 9
- 238000003825 pressing Methods 0.000 claims description 6
- 230000008901 benefit Effects 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical group [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Chemical group 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000010959 steel Chemical group 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
Landscapes
- Sliding Valves (AREA)
- Taps Or Cocks (AREA)
Abstract
The utility model relates to a double-layer sleeve rotary valve, which comprises an outer valve body pipe with a tubular section and an inner valve core pipe sleeved in the outer valve body pipe; the inner valve core pipe and the outer valve body pipe are provided with at least one pair of corresponding flow holes, the flow holes of the outer valve body pipe are provided with medium flow pipe orifices, and the tail ends of the flow pipe orifices are in sealing fit with the inner valve core pipe; rotating the inner valve core tube, and opening the valve when the corresponding flow hole is communicated; when the flow holes are staggered and closed, the valve is closed. The valve body adopts the inner and outer sleeve valves, and the inlet and the outlet are in radial or axial directions, so that the valve has the advantages of simple structure, convenience in processing and good sealing effect.
Description
Technical Field
The utility model relates to the field of valves, in particular to a rotary valve sleeved by inner and outer sleeves.
Background
The valve has the functions of cutting off and conducting, and has a good sealing function when in operation.
The existing valves are generally in the forms of ball valves, gate valves and the like, and the existing valves are cut off from the internal channel of a medium flowing pipeline, namely, the valves are not reversed, and are directly blocked from the middle position, for example, the ball valves are used for blocking the flowing pipe through the rotation of a spherical valve core, and the gate valves are cut off through the rotation or up-and-down movement of the gate plates, so that the structure is relatively complex, and the sealing is easy to be determined seriously.
Disclosure of Invention
Aiming at the defects of the prior art, the utility model provides the double-layer sleeve rotary valve which has the advantages of simple structure, convenient processing, reliable structure and convenient operation.
The utility model is realized by the following technical scheme:
a double-layer sleeve rotary valve comprises an outer valve body pipe with a tubular section and an inner valve core pipe sleeved in the outer valve body pipe; the inner valve core pipe and the outer valve body pipe are provided with at least one pair of corresponding flow holes, the flow holes of the outer valve body pipe are provided with medium flow pipe orifices, and the tail ends of the flow pipe orifices are in sealing fit with the inner valve core pipe; rotating the inner valve core tube, and opening the valve when the corresponding flow hole is communicated; when the flow holes are staggered and closed, the valve is closed.
The utility model adopts a valve structure of two sleeves, the sleeves rotate to realize the opening and closing of the valve, and compared with the prior art, the utility model has the following advantages:
1. compared with the prior art, the double-layer sleeve structure is simple in structure, medium flows in from the radial direction, the double-layer sleeve can directly cut off a pipeline after rotating, and the cutting-off mode is simple, direct and efficient.
2. The cutting mode adopts a totally new radial cutting and sleeve rotary cutting mode, a flashboard or a ball valve is not adopted any more, and the volume of the valve is further reduced besides the simple structure.
According to the form of the inner and outer valve cores, three cases can be divided:
first case: the inner valve core pipe and the outer valve body pipe are concentric shafts, and the inner valve core pipe and the medium circulation pipe orifice are in soft fit.
The form is the simplest and direct mode, and the concentric shaft mode is formed by sealing an inner sleeve and an outer sleeve.
Second case: the outer wall of the inner valve core tube and the inner wall of the outer valve body tube are eccentrically arranged, the sealing part of the tube orifice and the inner valve core tube is hard sealing, and when the valve is closed, the far end of the inner valve core tube is gradually close to the medium circulation tube orifice, so that the sealing purpose is achieved.
When the valve needs to be closed, the eccentric structure is adopted, and the eccentric far end is directly used for sealing the inlet, so that the defect of poor sealing caused by long-time abrasion can be overcome.
Third case: the inner valve core pipe is of a conical structure, and an adjusting mechanism is arranged at the thin end of the inner valve core pipe.
The conical structure can make up for the progressive part of the small end when the sealing is not tight.
Further, the inner sides of the two ends of the inner valve core tube are respectively provided with a partition board, and the two partition boards divide the inner valve core tube into a cavity; at least a second pair of flow holes for medium to flow out are arranged in the cavity, and a sealing structure is arranged on the newly arranged flow holes.
After the two baffles and the circulation holes are additionally arranged, a sealed cavity can be formed, and passages are formed at two ends of the cavity.
On the basis of the above, the number of the newly opened flow holes is three, and four pairs of flow holes are provided for the four pairs of flow holes which are connected with the flow holes for the medium to flow in, and the four pairs of flow holes are uniformly arranged along the outer circular array of the inner valve core tube.
After the plurality of flow holes are formed, the reversing valve can be formed, and the reversing valve has no traditional solid valve core, so that the mechanism is simpler compared with the existing reversing valve, and meanwhile, the reversing valve has the advantage of convenience in processing.
Further, at least one middle partition plate is additionally arranged between the left partition plate and the right partition plate, the inner cavity of the inner valve core tube is divided into a plurality of independent cavities by the adjacent partition plates, and each independent cavity is provided with a plurality of convection through holes for inflow and outflow of media.
After the plurality of clapboards are arranged, the synchronization of the valves is realized, the synchronous valves are formed, and the synchronous control of the same valve to multiple pipelines is realized.
Preferably, the adjusting mechanism comprises adjusting pressing plates positioned at two ends of the inner valve core tube, and two ends of the adjusting pressing plates are connected with adjusting nuts fixed at two ends of the outer valve tube by bolts.
By arranging the adjusting mechanism, the sealing matching degree of the conical inner valve core tube can be adjusted, so that the requirement of required sealing is met.
Preferentially, the projection of the flow hole is in an elliptic structure, and the area of the flow hole is not smaller than the cross-sectional area of the flow pipe orifice; through this setting, the drawback of valve to medium restriction is eliminated.
A use method of a double-layer sleeve rotary valve,
A. the inner valve core tube and the outer valve body tube are provided with a flow hole, and a sealing structure is arranged in the flow hole;
B. sleeving the inner valve core in the outer valve body pipe;
C. the external pipe fitting connected with the valve is connected, when the valve is required to be opened, the inner valve core pipe is rotated, and when the corresponding flow hole is communicated, the valve is opened; when the flow holes are staggered and closed, the valve is closed;
the valve core pipe is a conical pipe, the valve core pipe is driven to axially move by the tensioning mechanism, and the valve body is closed to enable the valve core pipe to move towards the small-diameter end, so that the sealing effect is improved; when the valve body is opened, the valve core pipe moves towards the large-diameter end, so that the valve core pipe can rotate conveniently.
And when the valve is closed, the inner valve core pipe rotates, and the eccentric high point of the inner valve core pipe tightly seals the valve inlet, so that the valve is closed.
Drawings
FIG. 1 is a schematic cross-sectional view of embodiment 1 of the present utility model;
FIG. 2 is a schematic cross-sectional view of embodiment 8 of the present utility model;
fig. 3 is a schematic cross-sectional structure of embodiment 4 of the present utility model:
FIGS. 4, 5, 8 and 9 are schematic cross-sectional structures of embodiment 4 of the present utility model;
FIG. 6 is a schematic cross-sectional view of embodiment 5 of the present utility model;
FIG. 7 is a schematic cross-sectional view of embodiment 6 of the present utility model;
FIG. 10 is a schematic sectional view of the flow hole in embodiment 7 of the present utility model.
Fig. 11 is a schematic cross-sectional view of embodiment 3 of the present utility model.
Detailed Description
In order to clearly illustrate the technical characteristics of the scheme, the scheme is explained below through a specific embodiment.
Example 1
The double-layer sleeve rotary valve is shown in fig. 1, and comprises an inner valve core tube 1 and an outer valve body tube 2, wherein the inner valve core tube 1 is sleeved in the outer valve body tube 2, and the outer walls of the two tubes are provided with a flow hole 3 for medium inflow; rotating the inner valve core tube 1, and opening the valve when the corresponding flow hole 3 is communicated; when the flow hole 3 is closed in a staggered manner, the valve is closed.
The outer valve body tube 2 is provided with a medium circulation tube orifice 4 which is generally in the form of a flange, and the outer wall of the flange is welded and fixed with the outer valve body tube for the convenience of processing and fixing.
In this embodiment, only one pair of through holes is formed as an inlet, two ends of the inner valve core tube 1 are in an open structure, and as an outlet, at this time, the rotation of the inner valve core tube can be achieved in various manners, for example, two sides of the inner valve core tube may be provided with four switch holes 5, and the four switch holes may be arranged along the inner valve core tube array, and when rotating, the inner valve core tube array is rotated by inserting a pry bar into the switch holes 5, and the inner valve core tube array is rotated manually; the gear ring can be fixedly arranged on the periphery of the inner valve core tube 1, and the gear ring is driven to rotate by the motor, so that the accurate control is achieved.
The inner valve core pipe and the outer valve body pipe are coaxially matched, and if the conditions allow, the machining precision of the inner valve core pipe and the outer valve body pipe can be high in matching precision of the existing piston and cylinder body; a sealing structure is arranged between the inlet end of the pipe orifice and the inner valve core pipe, and soft sealing fit is adopted in the embodiment, and can be made of soft rubber materials or hard plastic materials.
The end parts of the inner valve core tube 1 and the outer valve body tube are provided with matched assemblies, the matched positions are provided with positioning sleeves 6, the outer side of the outer valve body tube is provided with jackscrews 7, and the jackscrews penetrate through the valve body tube and then fix the positioning sleeves.
Example 2:
this embodiment differs from embodiment 1 in that: the outer wall of the inner valve core tube and the inner wall of the outer valve body tube are arranged eccentrically, at the moment, the sealing part of the medium circulation tube orifice and the inner valve core tube is hard sealing, and the hard sealing is soft sealing compared with the embodiment 1, because of the eccentric structure, the extrusion force is larger, and the original soft sealing is changed into hard metal sealing, such as copper ring or steel ring sealing.
The eccentricity of the embodiment is about 0.5-1 mm, and the eccentric distal end is gradually close to the pipe orifice to realize sealing, so that when sealing, the eccentric position just seals the circulation hole at the medium inflow position, and the condition of loose sealing at the sealing position after long service time can be eliminated.
Example 3:
this embodiment differs from embodiment 1 in that the inner cartridge tube 1 has a conical configuration, where the seal is preferably a hard seal, as shown in figure 11,
the two ends of the inner valve core tube 1 are provided with adjusting mechanisms 8, and the specific form of the adjusting mechanisms is as follows: the valve comprises an adjusting pressing plate 11 positioned at two ends of an inner valve core tube, and two ends of the adjusting pressing plate 11 are connected with adjusting nuts for fixing two ends of an outer valve tube by bolts.
As shown in fig. 11, when the inner spool needs to be adjusted to the left, the left adjusting nut is screwed (the right adjusting nut is matched and released); when the right adjustment is needed, the right adjustment nut is screwed (the left adjustment nut is matched and released).
The filter screen 10 is arranged in the inner valve core tube and is used for filtering impurities in the fluid.
When the valve core tube needs to be replaced, the inner valve core tube is pulled out from the big head end and replaced by a new inner valve core tube, so that the aim of convenient replacement is fulfilled.
The two end dimensions of the conical inner valve core tube are also tiny, the taper is about 0.5-1 degree, and when the sealing fails, the inner valve core tube is pulled to the left side.
Example 4
Two sides of the inner valve core tube 1 are respectively provided with a sealing plate 9, the left and right sealing plates form a cavity with the inner valve core tube, at least one pair of flow holes for medium outflow are arranged except for the inlet flow holes, the flow holes are provided with outflow nozzles, as shown in figure 3,
of course, to achieve commutation, the flow holes may be provided in multiple pairs, for example 4 pairs in fig. 4, three pairs in fig. 5, and the flow holes in fig. 4.5 are provided in the same radial section; of course, may be disposed along an axis, as shown in fig. 8; when the axes are arranged, as shown in fig. 9, a plurality of pairs may be arranged, the middle position is selected as the inlet, and the filter plate with the filtering holes is arranged on the inner side of the corresponding valve core of the inlet.
Example 5
On the basis of embodiment 4, the inner valve core tube is provided with a plurality of middle sealing plates in the middle, the middle sealing plates and the sealing plates positioned on two sides, the inner valve core tube is divided into a plurality of independent chambers, each independent chamber is provided with a medium inflow (outflow) port, so that the synchronization of a plurality of valves is realized, or staggered conduction is realized through the dislocation of the inflow (outflow) ports.
As shown in fig. 6, 2 left and right partition boards and 2 middle partition boards are arranged, and 3 cavities are formed in a conformal manner; each cavity is provided with a plurality of convection holes to form a plurality of inflow (outflow) ports.
Example 6
The outflow openings on the left and right sides of example 4 were provided with small openings for outflow of excess medium or for detection of whether the seal was perfect (if there was a leak, medium would flow out of the small openings) as shown in fig. 7.
Meanwhile, high-pressure blocking gas or other mediums can be reversely injected into the small opening to block the leakage point.
Example 7
The difference between this embodiment and the above-mentioned embodiment is that the cross-sectional area of the flow hole is increased, and the flow hole can be designed into a round-like or oval-like structure, as shown in fig. 10, the projected middle of the flow hole is rectangular, the two sides are semicircular, and the tie bars 13 are arranged in the middle for preventing the valve core from deforming.
After adopting this kind of structure, on the one hand is convenient for process, on the other hand, after the aperture area increase, the medium can not be restricted by the restriction behind the valve, and the fluxion is good.
Example 8
One end of the valve core is provided with a baffle plate, the other end is provided with no baffle plate as an inlet, when a pair of through holes are formed, the valve flows like an angle valve, and when two pairs of through holes are formed, the angle valve is formed. As shown in fig. 2.
Of course, the above description is not limited to the above examples, and the technical features of the present utility model that are not described may be implemented by or by using the prior art, which is not described herein again; the above examples and drawings are only for illustrating the technical scheme of the present utility model and not for limiting the same, and the present utility model has been described in detail with reference to the preferred embodiments, and it should be understood by those skilled in the art that changes, modifications, additions or substitutions made by those skilled in the art without departing from the spirit of the present utility model and the scope of the appended claims.
Claims (8)
1. A double-sleeve rotary valve, characterized in that: comprises an outer valve body pipe with a tubular section and an inner valve core pipe sleeved in the outer valve body pipe; the inner valve core pipe and the outer valve body pipe are provided with at least one pair of corresponding flow holes, the flow holes of the outer valve body pipe are provided with medium flow pipe orifices, and the tail ends of the flow pipe orifices are in sealing fit with the inner valve core pipe; rotating the inner valve core tube, and opening the valve when the corresponding flow hole is communicated; when the flow holes are staggered and closed, the valve is closed.
2. The double sleeve rotary valve of claim 1 wherein: the inner valve core pipe and the outer valve body pipe are concentric shafts, and the inner valve core pipe and the medium circulation pipe orifice are in soft fit.
3. The double sleeve rotary valve of claim 1 wherein: the outer wall of the inner valve core tube and the inner wall of the outer valve body tube are eccentrically arranged, the sealing part of the tube orifice and the inner valve core tube is hard sealing, and when the valve is closed, the far end of the inner valve core tube is gradually close to the medium circulation tube orifice, so that the sealing purpose is achieved.
4. The double sleeve rotary valve of claim 1 wherein: the inner valve core tube is of a conical structure, and adjusting mechanisms are arranged at two ends of the inner valve core tube.
5. A double sleeve rotary valve according to any one of claims 2 or 3 or 4, wherein: the inner sides of the two ends of the inner valve core tube are respectively provided with a baffle plate, and the two baffle plates divide the inner valve core tube into a cavity; at least a second pair of flow holes for medium to flow out are arranged in the cavity, and a sealing structure is arranged on the newly arranged flow holes.
6. The double sleeve rotary valve of claim 5 wherein: the newly opened flow holes are three pairs, and four pairs of flow holes are formed in total along with the flow holes into which the medium flows, and are uniformly arranged along the outer circular array of the inner valve core tube.
7. The double sleeve rotary valve of claim 5 wherein: at least one middle partition plate is additionally arranged between the left partition plate and the right partition plate, the inner cavity of the inner valve core tube is divided into a plurality of independent chambers by the adjacent partition plates, and each independent chamber is provided with a plurality of convection through holes for medium inflow and medium outflow.
8. The double sleeve rotary valve of claim 4 wherein: the adjusting mechanism comprises adjusting pressing plates positioned at two ends of the inner valve core tube, and two ends of the adjusting pressing plates are connected with adjusting nuts fixed at two ends of the outer valve tube through bolts.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222947209 | 2022-11-07 | ||
| CN2022229472091 | 2022-11-07 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220416317U true CN220416317U (en) | 2024-01-30 |
Family
ID=89654615
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321855794.0U Active CN220416317U (en) | 2022-11-07 | 2023-07-14 | Double-layer sleeve rotary valve |
| CN202321855791.7U Active CN220470680U (en) | 2022-11-07 | 2023-07-14 | Closed isolation valve |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321855791.7U Active CN220470680U (en) | 2022-11-07 | 2023-07-14 | Closed isolation valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (2) | CN220416317U (en) |
-
2023
- 2023-07-14 CN CN202321855794.0U patent/CN220416317U/en active Active
- 2023-07-14 CN CN202321855791.7U patent/CN220470680U/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN220470680U (en) | 2024-02-09 |
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| GR01 | Patent grant | ||
| GR01 | Patent grant |