CN220956897U - Piston type regulating valve with modularized replaceable throttle mouth squirrel cage - Google Patents
Piston type regulating valve with modularized replaceable throttle mouth squirrel cage Download PDFInfo
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- CN220956897U CN220956897U CN202322777712.1U CN202322777712U CN220956897U CN 220956897 U CN220956897 U CN 220956897U CN 202322777712 U CN202322777712 U CN 202322777712U CN 220956897 U CN220956897 U CN 220956897U
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- valve
- piston
- throttle
- squirrel cage
- throttling
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- 230000001105 regulatory effect Effects 0.000 title claims abstract description 17
- 241000555745 Sciuridae Species 0.000 title claims description 31
- 239000011148 porous material Substances 0.000 claims abstract description 11
- 238000007789 sealing Methods 0.000 claims description 7
- 238000013461 design Methods 0.000 abstract description 9
- 230000003044 adaptive effect Effects 0.000 abstract description 3
- 230000001276 controlling effect Effects 0.000 abstract description 2
- 230000007774 longterm Effects 0.000 description 3
- 230000033228 biological regulation Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000004891 communication Methods 0.000 description 1
- 230000006837 decompression Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 239000000565 sealant Substances 0.000 description 1
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Abstract
The utility model discloses a piston type regulating valve with a modularized replaceable throttle mouth mouse cage, which comprises a main valve body, an auxiliary valve body, a valve seat, a valve core chamber, a piston, a mouse cage type sleeve and a control assembly, wherein the control assembly is used for controlling the piston to reciprocate in the valve core chamber, the mouse cage type sleeve is arranged on one side of the piston adjacent to the auxiliary valve body, a plurality of through holes are formed in the circumferential direction of the mouse cage type sleeve, the piston type regulating valve also comprises a plurality of throttle components with different throttle hole diameters, the top of the throttle component is provided with a connecting end detachably connected with the through holes, the through holes are communicated with the throttle hole, and the bottom of the throttle component is provided with an operating end. The utility model has novel structural design, can realize different flow characteristics by replacing the throttling parts of the throttling pore canals with different specifications, and can carry out adaptive adjustment aiming at the flow characteristics of the valve so as to fulfill the aims of reducing pressure and regulating flow.
Description
Technical Field
The utility model relates to the technical field of pipeline valves, in particular to a piston type regulating valve with a modularized replaceable throttling port squirrel cage.
Background
Under the general condition, the piston type regulating valve needs to draw out the flow coefficient of the working condition demands according to the working condition valve flow/pressure and other parameters given by engineering design units, and then designs the squirrel cage opening design scheme of the piston type regulating valve so as to meet the working condition flow coefficient demands of engineering. However, such a mode has some drawbacks: 1. the operation parameters required to be given by the design unit must be as accurate as possible, otherwise, the valve may not meet the actual working condition requirements; 2. when the working condition parameters are changed greatly (the actual flow requirement is far smaller than the design flow in the common situation), the actual opening of the valve is very small, so that the valve adjusting precision is very low. 3. When the project initial flow demand and the long-term flow demand have great difference, the valve is difficult to consider the initial demand and the long-term demand.
Disclosure of utility model
Aiming at the defects in the prior art, the utility model aims to provide a piston type regulating valve with a modularized replaceable throttling port squirrel cage. The utility model has novel structural design, can realize different flow characteristics by replacing the throttling parts of the throttling pore canals with different specifications, and can carry out adaptive adjustment aiming at the flow characteristics of the valve so as to fulfill the aims of reducing pressure and regulating flow.
In order to solve the technical problems, the utility model is realized by the following technical scheme:
The utility model provides a piston type governing valve with removable orifice squirrel cage of modularization, includes main valve body, vice valve body, disk seat, case room, piston, squirrel cage sleeve and control assembly, control assembly is used for controlling the piston is in the indoor reciprocating motion of case, squirrel cage sleeve set up in the piston is adjacent one side of vice valve body, be provided with a plurality of through-holes on squirrel cage sleeve's the circumferencial direction, still include:
The throttle component is characterized in that the throttle component is provided with a plurality of throttle pore canal diameters, the top of the throttle component is provided with a connecting end detachably connected with the through hole, the through hole is communicated with the throttle pore canal, and the bottom of the throttle component is provided with an operating end.
Preferably, the arrangement modes of the throttling components are as follows: the diameters of the throttling pore canals are distributed from large to small along the valve opening direction.
Preferably, the connecting end is an external thread arranged at the top of the throttling component, and an internal thread which is in matched connection with the external thread is arranged in the through hole.
Preferably, the operation end is a polygonal corner head arranged at the bottom of the throttling component, and the polygonal corner head is matched with the spanner.
Preferably, the control assembly includes a valve shaft, a crank, and a connecting rod connected to the piston through a connecting frame, the valve shaft being connected to the connecting rod through the crank; the valve shaft can control the piston to reciprocate in the valve core chamber under the drive of the crank and the connecting rod.
Preferably, a guide rail consistent with the axial direction of the piston is arranged in the valve core chamber, and a sliding fit relationship is formed between the guide rail and the piston.
Preferably, the piston is a cylindrical piston.
Preferably, a valve seat sealing ring is arranged on the valve seat.
Preferably, a valve core sealing ring is arranged on the valve core chamber.
Compared with the prior art, the utility model has the following advantages:
The utility model has novel structural design, can realize different flow characteristics by replacing the throttling parts of the throttling pore canals with different specifications, and can realize the adaptive adjustment of the flow characteristics of the valve so as to fulfill the aims of reducing pressure and regulating flow.
The arrangement mode of the throttling components on the squirrel cage is as follows: the diameters of the throttling pore canals are distributed from large to small along the valve opening direction, the arrangement mode of the combined throttling components designed in the way can achieve equivalent equal percentage characteristics, throttling components with different specifications do not need to be replaced frequently, the problem that the adjustment precision is low due to small recent flow can be solved, the combined throttling component is applicable to characteristics of large flow change in middle and long periods, and the combined throttling component is high in compatibility.
Drawings
FIG. 1 is a schematic view of a longitudinal cross-sectional structure of a pressure regulating valve according to the present utility model;
FIG. 2 is a schematic diagram of a transverse cross-sectional structure of a pressure regulating valve according to the present utility model;
FIG. 3 is a schematic view of the structure of the throttle member of the present utility model;
FIG. 4 is a schematic cross-sectional view of a throttle member of the present utility model;
FIG. 5 is a schematic cross-sectional view of a single diameter throttle member mounted on a squirrel cage sleeve;
FIG. 6 is a graph of relative flow coefficients for valve openings corresponding to a single size throttle fitting installed on a squirrel cage sleeve of the present utility model;
FIG. 7 is a schematic cross-sectional view of a combined throttle member with throttle opening diameters mounted on a squirrel cage sleeve according to the present utility model;
FIG. 8 is a graph of relative flow coefficients for valve openings corresponding to a combined throttling element and a No. 1 throttling element mounted on a squirrel cage sleeve according to the present utility model;
FIG. 9 is a graph of the relative flow coefficients of the opening of the valve corresponding to the combined throttling element and the 3# throttling element mounted on the squirrel cage sleeve of the present utility model.
Reference numerals: 1. the valve comprises a main valve body, 2, an auxiliary valve body, 3, a valve seat, 31, a valve seat sealing ring, 4, a valve core chamber, 41, a valve core sealing ring, 5, a piston, 6, a squirrel cage sleeve, 61, a through hole, 7, a throttling component, 71, a throttling pore canal, 72, a connecting end, 73, an operating end, 8, a control assembly, 81, a valve shaft, 82, a crank, 83, a connecting rod, 84, a connecting frame, 85, a guide rail, 86, an inner shaft sleeve, 87, a crank pin, 88 and an outer shaft sleeve.
Detailed Description
In order that those skilled in the art will better understand the technical solutions of the present utility model, preferred embodiments of the present utility model will be described below with reference to specific examples, but it should be understood that the drawings are for illustrative purposes only and should not be construed as limiting the present patent; for the purpose of better illustrating the embodiments, certain elements of the drawings may be omitted, enlarged or reduced and do not represent the actual product dimensions; it will be appreciated by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted. The positional relationship depicted in the drawings is for illustrative purposes only and is not to be construed as limiting the present patent.
Term interpretation:
Flow coefficient: a certain flow rate is passed under certain pressure difference condition.
Working condition flow coefficient: refers to the corresponding flow under the pressure difference condition given by the working condition.
Valve flow coefficient: refers to the flow which can pass through the valve under the condition of fixed pressure difference under each opening degree.
Valve relative flow: the valve is the ratio between the flow which can pass through under the condition of fixed pressure difference and the flow which can pass through when the valve is fully opened under each opening degree.
The basic structure of the valve meets the requirements of JB/T14314-2022 piston type flow regulating valve, so detailed description will not be made.
As shown in fig. 1-4, the utility model provides a piston type regulating valve with a modularized replaceable throttle mouth mouse cage, which comprises a main valve body 1, an auxiliary valve body 2, a valve seat 3, a valve core chamber 4, a piston 5, a mouse cage type sleeve 6, a throttle part 7 and a control assembly 8. The valve seat 3 is provided with a valve seat seal 31, and the valve element chamber 4 is provided with a valve element seal 41.
As shown in fig. 1 and 2, the piston 5 is configured as a columnar piston, and the control assembly 8 includes a valve shaft 81, a crank 82, a connecting rod 83, a guide rail 85, an inner sleeve 86, a crank pin 87, and an outer sleeve 88, the connecting rod 83 is connected to the piston 5 through a connecting frame 84, and the valve shaft 81 is connected to the connecting rod 83 through the crank 82; the guide rail 85 is arranged in the valve core chamber 4 and is consistent with the axial direction of the piston 5, and the guide rail 85 and the piston 5 form a sliding fit relation; the valve shaft 81 can control the piston 5 to reciprocate on the guide rail 85 in the valve core chamber 4 under the drive of the crank 82 and the connecting rod 83.
As shown in fig. 1, the squirrel-cage sleeve 6 is fixed on one side of the piston 5 adjacent to the auxiliary valve body 2 by adopting an internal screw, a plurality of through holes 61 are uniformly formed in the circumferential direction of the squirrel-cage sleeve 6, internal threads are formed in the through holes 61, and the internal thread specifications are completely consistent.
As shown in fig. 3 and 4, a throttle hole 71 is formed in the middle of the throttle member 7, a connection end 72 detachably connected to the through hole 61 is formed at the top of the throttle member 7, the connection end 72 is provided with external threads which are matched with internal threads on the through hole 61 to enable the through hole 61 to communicate with the throttle hole 71, and when the throttle member 7 is screwed into the through hole 61, a thread sealant is required to be coated for sealing and preventing loosening. The bottom of the throttling component 7 is provided with an operation end 73, the operation end 73 is a polygonal angle head arranged at the bottom of the throttling component 7, the polygonal angle head is matched with a spanner, and the throttling component 7 can be disassembled and assembled through the electric spanner, so that the throttle component is convenient and quick. When the water flow passes through the squirrel cage, after being limited/guided by the through holes 61 and the throttling part 7 on the circumference of the squirrel cage, the water flows downstream after being opposite to the outlet, and the decompression and flow regulation processes are completed by the opening degree of the valve.
The connecting end 72 and the operating end 73 of all the throttle members 7 are uniform in size, and the throttle members 7 with different specifications can be divided into the throttle members 7 with different specifications only according to the diameter of the throttle duct 71, so that the flow characteristic requirements of different periods can be met by replacing the throttle members 7 with different specifications.
In some embodiments, the orifice passage 71 is divided into at least 5 different sizes by the diameter from small to large, which are named, in order, 1# throttle part, 2# throttle part, 3# throttle part, 4# throttle part, 5# throttle part, and the like. As shown in fig. 5 and 6, when the throttle member 7 of a single specification is used in its entirety, it is clear from its typical linear flow characteristic diagram that as the diameter of the throttle bore 71 of the replaced throttle member 7 increases gradually, the relative flow coefficient of the corresponding valve opening increases, whereas it decreases, so that different flow characteristics can be realized by replacing different throttle members 7.
As shown in fig. 7-9, when the throttle member 7 is arranged on the cage in the following manner: when the diameters of the throttling pore canals 71 are distributed from large to small along the valve opening direction, the flow coefficient corresponding to the combined throttling part 7 is between the 1# throttling part 7 and the 3# throttling part 7, the equivalent equal percentage characteristic can be realized by the designed combined distribution mode, the throttling parts 7 with different specifications do not need to be replaced frequently, the problem of low regulation precision caused by small recent flow can be solved, the device is applicable to the characteristic of large flow change in middle and long periods, and the compatibility is strong. The valve has reasonable opening and flow characteristic curves no matter in the initial stage or the middle-long stage, and the function and the adjusting precision are ensured.
Different flow characteristic curves are suitable for different working condition occasions. Can be correspondingly adjusted according to the working condition.
The concrete application of the piston type regulating valve in the engineering site is described as follows:
Calculating the required valve opening size after rechecking working condition parameters on the engineering site according to actual operation parameters; then, workers enter the pipeline from the valve outlet, throttle parts 7 are arranged on part or all of the squirrel cage through holes 61, and the valve adjusting precision can be adjusted and the initial requirement and the long-term requirement can be considered by replacing the throttle parts 7 with different specifications.
When engineering parameters need to be changed greatly, working condition parameters can be rechecked again, the required valve opening size is calculated, and then the valve is put into a pipeline for adjustment.
In the initial design of the valve, the valve should be designed based on basic working condition parameters, and the maximum flow capacity of the valve should still meet the basic requirements of engineering. I.e. the maximum Kv of the valve should still be greater than the operating mode flow coefficient.
When the engineering site is actually adjusted, the theoretical calculation and the actual measurement of the working condition pressure difference and the flow data are combined to carry out adjustment.
Based on the description of the utility model and the drawings, a person skilled in the art will readily make or use a piston-type regulator valve with a modular, replaceable orifice cage according to the utility model and will be able to produce the positive effects described in the utility model.
Unless specifically stated otherwise, in the present utility model, if there are terms such as "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., the positional relationship indicated is based on the positional relationship indicated in the drawings, and is merely for convenience of describing the present utility model and simplifying the description, and it is not necessary to indicate or imply that the referred devices or elements must have a specific orientation, be constructed and operated in a specific orientation, so that the terms describing the positional relationship in the present utility model are merely for exemplary illustration and should not be construed as limitations of the present patent, and it is possible for those skilled in the art to understand the specific meaning of the above terms in conjunction with the drawings and according to the specific circumstances.
Unless specifically stated or limited otherwise, the terms "disposed," "connected," and "connected" herein are to be construed broadly, e.g., they may be fixed, removable, or integral; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.
The foregoing description is only a preferred embodiment of the present utility model, and is not intended to limit the present utility model in any way, and any simple modification, equivalent variation, etc. of the above embodiment according to the technical matter of the present utility model fall within the scope of the present utility model.
Claims (9)
1. The utility model provides a piston type governing valve with removable orifice squirrel cage of modularization, includes main valve body (1), vice valve body (2), disk seat (3), case room (4), piston (5), squirrel cage sleeve (6) and control assembly (8), control assembly (8) are used for control piston (5) are in reciprocating motion in case room (4), squirrel cage sleeve (6) set up in piston (5) are adjacent one side of vice valve body (2), be provided with a plurality of through-holes (61) on the circumferencial direction of squirrel cage sleeve (6), its characterized in that still includes:
And the throttle component (7) with different diameters of various throttle pore canals (71), the top of the throttle component (7) is provided with a connecting end (72) detachably connected with the through hole (61), the through hole (61) is communicated with the throttle pore canals (71), and the bottom of the throttle component (7) is provided with an operating end (73).
2. A piston type regulating valve with modular replaceable throttle squirrel cage according to claim 1, characterized in that the arrangement of the plurality of throttle members (7) is: the diameters of the throttle holes (71) are arranged from large to small along the valve opening direction.
3. The piston regulator valve with modular replaceable choke squirrel cage of claim 1, wherein: the connecting end (72) is an external thread arranged at the top of the throttling part (7), and an internal thread which is connected with the external thread in a matching way is arranged in the through hole (61).
4. The piston regulator valve with modular replaceable choke squirrel cage of claim 1, wherein: the operating end (73) is a polygonal corner head arranged at the bottom of the throttling component (7), and the polygonal corner head is matched with a spanner.
5. The piston regulator valve with modular replaceable choke squirrel cage of claim 1, wherein: the control assembly (8) comprises a valve shaft (81), a crank (82) and a connecting rod (83), wherein the connecting rod (83) is connected with the piston (5) through a connecting frame (84), and the valve shaft (81) is connected with the connecting rod (83) through the crank (82); the valve shaft (81) can control the piston (5) to reciprocate in the valve core chamber (4) under the drive of the crank (82) and the connecting rod (83).
6. The piston regulator valve with modular replaceable choke squirrel cage of claim 1, wherein: the valve core chamber (4) is internally provided with a guide rail (85) consistent with the axial direction of the piston (5), and the guide rail (85) and the piston (5) form a sliding fit relation.
7. The piston regulator valve with modular replaceable choke squirrel cage of claim 1, wherein: the piston (5) is a columnar piston.
8. The piston regulator valve with modular replaceable choke squirrel cage of claim 1, wherein: the valve seat (3) is provided with a valve seat sealing ring (31).
9. The piston regulator valve with modular replaceable choke squirrel cage of claim 1, wherein: and a valve core sealing ring (41) is arranged on the valve core chamber (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322777712.1U CN220956897U (en) | 2023-10-17 | 2023-10-17 | Piston type regulating valve with modularized replaceable throttle mouth squirrel cage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322777712.1U CN220956897U (en) | 2023-10-17 | 2023-10-17 | Piston type regulating valve with modularized replaceable throttle mouth squirrel cage |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220956897U true CN220956897U (en) | 2024-05-14 |
Family
ID=91019645
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322777712.1U Active CN220956897U (en) | 2023-10-17 | 2023-10-17 | Piston type regulating valve with modularized replaceable throttle mouth squirrel cage |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220956897U (en) |
-
2023
- 2023-10-17 CN CN202322777712.1U patent/CN220956897U/en active Active
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