CN218177948U - Multi-stage gas flow regulating control valve - Google Patents
Multi-stage gas flow regulating control valve Download PDFInfo
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- CN218177948U CN218177948U CN202221239772.7U CN202221239772U CN218177948U CN 218177948 U CN218177948 U CN 218177948U CN 202221239772 U CN202221239772 U CN 202221239772U CN 218177948 U CN218177948 U CN 218177948U
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- valve
- flow regulating
- gas flow
- stage gas
- control valve
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Abstract
The utility model discloses a multistage gas flow regulating control valve, which comprises a valve body, a flow regulating sleeve, a valve head, a valve rod and an actuator, wherein the inner cavity of the valve body is provided with a circular boss; the inner cavity of the flow adjusting sleeve is provided with at least three annular steps, the inner diameters of the at least three annular steps are gradually increased from the outer side to the inner side, the diameter of the valve head is the same as the inner diameter of the annular step at the outermost side, and the actuator is configured to be capable of controlling the valve rod to drive the valve head to reciprocate in the inner cavity of the flow adjusting sleeve and close the control valve when the valve head corresponds to the annular step at the outermost side. The utility model discloses have the function that the gas circuit was cut off and gas flow adjusts concurrently.
Description
Technical Field
The utility model relates to a flow control valve, concretely relates to multistage gas flow regulation control valve.
Background
The process and apparatus for pneumatic conveying of powdered materials are widely used in various industries. The angle seat valve and the flow control orifice plate are largely used in an auxiliary air adding device for conveying materials by a pump. The angle seat valve only can play a role in cutting off the gas circuit, and cannot adjust the flow. The flow control orifice plate needs to be customized in advance, and if the air quantity needs to be adjusted or increased in use, the air adding operation needs to be stopped, and the orifice plate needs to be replaced. This mode affects production efficiency and maintenance costs are high.
Therefore, there is a need in the art for a new control valve that addresses the above-mentioned problems.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a multistage gas flow regulation control valve has the function that the gas circuit cut-off and gas flow adjusted concurrently.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a multi-stage gas flow regulating control valve comprises a valve body, a flow regulating sleeve, a valve head, a valve rod and an actuator, wherein an inner cavity of the valve body is provided with an annular boss, the flow regulating sleeve is installed on the boss, one end of the valve rod is connected with the valve head, and the other end of the valve rod is connected with the actuator; the inner cavity of the flow adjusting sleeve is provided with at least three annular steps, the inner diameters of the at least three annular steps are gradually increased from the outer side to the inner side, the diameter of the valve head is the same as the inner diameter of the annular step at the outermost side, and the actuator is configured to be capable of controlling the valve rod to drive the valve head to reciprocate in the inner cavity of the flow adjusting sleeve and close the control valve when the valve head corresponds to the annular step at the outermost side.
Preferably, the inner cavity of the flow-regulating sleeve is further formed with a limiting portion, and the limiting portion is located outside the annular step portion on the outermost side.
Preferably, the inner diameter of the position-limiting part is gradually enlarged from outside to inside, and the inner diameter of the position-limiting part is smaller than the inner diameter of the annular step part at the outermost side.
Preferably, the inner cavity of the valve body is divided into a first cavity and a second cavity by the flow adjusting sleeve and the valve head, the first cavity is communicated with the first air passage, and the second cavity is communicated with the second air passage.
Preferably, the actuator has a manual control mode and an automatic control mode.
Preferably, a front valve rod guide sleeve is arranged on the upper side of the valve body, a sealing ring and a spacer sleeve are arranged between the front valve rod guide sleeve and the valve rod, an O-shaped ring is arranged between the valve body and the front valve rod guide sleeve, a rear valve rod guide sleeve is arranged on the upper side of the front valve rod guide sleeve, a shaft sleeve is arranged between the rear valve rod guide sleeve and the valve rod, and a gland is arranged on the upper side of the rear valve rod guide sleeve.
Preferably, an oil cup is arranged on the guide sleeve behind the valve rod.
Preferably, an O-ring is arranged between the gland and the valve rod.
Preferably, the valve stem is an oil stem.
The utility model has the advantages that:
the utility model provides a multistage gas flow regulation control valve can realize the function that the gas circuit cut-off and gas flow control through the cooperation of valve head and accent stream cover.
Drawings
Fig. 1 is a schematic view of a multistage gas flow regulating control valve according to the present invention;
FIG. 2 is a schematic cross-sectional view of a multi-stage gas flow regulating control valve of the present invention;
fig. 3 and 4 are enlarged views of a portion of fig. 2.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples.
Referring to fig. 1 to 4, the structure of the multistage gas flow regulating control valve of the present invention is schematically illustrated. The multi-stage gas flow regulating control valve provided by the embodiment comprises a valve body 1, a flow regulating sleeve 2, a valve head 3, a valve rod 4 and an actuator 5.
The inner cavity of the valve body 1 is provided with a circular boss 6, the flow adjusting sleeve 2 is arranged on the boss 6, one end of the valve rod 4 is connected with the valve head 3, and the other end is connected with the actuator 5. The valve head 3 is screwed to the end of a valve rod 4 through a hexagon nut, and the valve rod 4 is an oil rod. The inner cavity of the flow adjusting sleeve 2 is formed with at least three annular steps 7, the inner diameters of the at least three annular steps 7 are gradually increased from the outer side to the inner side, the diameter of the valve head 3 is the same as the inner diameter of the annular step 7 at the outermost side, and the actuator 5 is configured to control the valve rod 4 to drive the valve head 3 to reciprocate in the inner cavity of the flow adjusting sleeve 2 and close the control valve when the valve head 3 corresponds to the annular step 7 at the outermost side. Specifically, when the valve head 3 corresponds to the outermost annular step 7, the control valve is in the closed state. When the actuator 5 drives the valve rod 4 and further drives the valve head 3 to move, along with the increase of the inner diameter of the annular step part 7, the gap between the valve head 3 and the corresponding annular step part 7 is also increased, the gas flow is also increased, and otherwise, the gas flow is reduced. Thus, the functions of gas circuit breaking and gas flow regulation are realized. The number of the annular step portions 7 may be larger than 3, but is not limited thereto.
Specifically, the inner cavity of the flow regulating sleeve 2 is further formed with a limiting part 8, and the limiting part 8 is positioned outside the annular step part 7 at the outermost side. The stopper 8 may limit the valve head 3. The inner diameter of the limiting part 8 is gradually enlarged from outside to inside, and the inner diameter of the limiting part 8 is smaller than that of the annular step part 7 at the outermost side. In this way, a certain degree of sealing effect is increased when the control valve is in the closed state. The inner chamber of the valve body 1 is divided into a first chamber and a second chamber by the flow regulating sleeve 2 and the valve head 3, the first chamber is communicated with a first air path, and the second chamber is communicated with a second air path. One of the first air path and the second air path is an air inlet channel, and the other one of the first air path and the second air path is an air outlet channel.
The upper side of the valve body 1 is provided with a valve rod front guide sleeve 9, a sealing ring 10 and a spacer 11 are arranged between the valve rod front guide sleeve 9 and the valve rod 4, an O-shaped ring 12 is arranged between the valve body 1 and the valve rod front guide sleeve 9, the upper side of the valve rod front guide sleeve 9 is provided with a valve rod rear guide sleeve 13, a shaft sleeve 14 is arranged between the valve rod rear guide sleeve 13 and the valve rod 4, and the shaft sleeve 14 is abutted to the spacer 11. The upper side of the valve rod rear guide sleeve 13 is provided with a gland 15. An oil cup 16 is arranged on the valve rod rear guide sleeve 13. An O-shaped ring 12 is arranged between the gland 15 and the valve rod 4.
The actuator 5 has a manual control mode and an automatic control mode. For example, the controller may be an automatic control member capable of controlling the expansion and contraction of the valve stem 4, and may have both a manual control mode and an automatic control mode. It may also be a manual control member constituted by mechanical elements. As shown in FIG. 4, the actuator 5 is manually controlled, that is, an adjusting plate 17 is connected to the end of the valve rod 4, a through hole is formed in the adjusting plate 17, a wing nut 18 is fixedly connected to the through hole, and a flat washer 19 is fixedly connected to the wing nut 18 and the adjusting plate 17. The gland 15 is provided with a threaded hole, the threaded hole and the butterfly nut 18 are respectively screwed through a positive and negative buckle adjusting bolt 20, and the threaded hole and the butterfly nut 18 are respectively screwed with positive and negative screws of the positive and negative buckle adjusting bolt 20, so that the distance between the gland 15 and the adjusting plate 17 can be adjusted by rotating the positive and negative buckle adjusting bolt 20 in the positive direction or the reverse direction, and the purpose of adjusting the valve head 3 is realized. In addition, a graduated scale 21 can be fixedly connected to the end of the valve rod 4, a pointer 22 is correspondingly fixedly connected to the gland 15, and the opening degree of the valve head can be determined by observing the indication position of the pointer 22 on the graduated scale 21.
The above description is the preferred embodiment of the present invention and the technical principle applied by the same, and for those skilled in the art, without departing from the spirit and scope of the present invention, any obvious changes such as equivalent transformation, simple replacement, etc. based on the technical solution of the present invention all belong to the protection scope of the present invention.
Claims (9)
1. A multi-stage gas flow regulating control valve is characterized by comprising a valve body, a flow regulating sleeve, a valve head, a valve rod and an actuator, wherein an inner cavity of the valve body is provided with an annular boss;
the inner cavity of the flow adjusting sleeve is provided with at least three annular steps, the inner diameters of the at least three annular steps are gradually increased from the outer side to the inner side, the diameter of the valve head is the same as the inner diameter of the annular step at the outermost side, and the actuator is configured to be capable of controlling the valve rod to drive the valve head to reciprocate in the inner cavity of the flow adjusting sleeve and close the control valve when the valve head corresponds to the annular step at the outermost side.
2. The multi-stage gas flow regulating control valve of claim 1, wherein the inner cavity of the flow regulating sleeve further defines a stop portion, the stop portion being located outside the outermost annular step portion.
3. The multi-stage gas flow rate regulating and controlling valve according to claim 2, wherein the inner diameter of the stopper portion is gradually enlarged from the outside to the inside, and the inner diameter of the stopper portion is smaller than the inner diameter of the outermost annular step portion.
4. The multi-stage gas flow regulating control valve of claim 1, wherein the inner cavity of the valve body is divided into a first cavity and a second cavity by the flow regulating sleeve and the valve head, the first cavity is communicated with a first gas path, and the second cavity is communicated with a second gas path.
5. The multi-stage gas flow regulating control valve of claim 1, wherein the actuator has a manual control mode and an automatic control mode.
6. The multi-stage gas flow regulating control valve according to claim 1, wherein a valve stem front guide is provided at an upper side of the valve body, a sealing ring and a shaft sleeve are provided between the valve stem front guide and the valve stem, an O-ring is provided between the valve body and the valve stem front guide, a valve stem rear guide is provided at an upper side of the valve stem front guide, a shaft sleeve is provided between the valve stem rear guide and the valve stem, and a gland is provided at an upper side of the valve stem rear guide.
7. The multi-stage gas flow regulating control valve of claim 6, wherein an oil cup is provided on the guide sleeve behind the valve stem.
8. The multi-stage gas flow regulating control valve of claim 6, wherein an O-ring is provided between the gland and the stem.
9. The multi-stage gas flow regulating control valve of any one of claims 1 to 8, wherein the valve stem is an oil stem.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221239772.7U CN218177948U (en) | 2022-05-23 | 2022-05-23 | Multi-stage gas flow regulating control valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221239772.7U CN218177948U (en) | 2022-05-23 | 2022-05-23 | Multi-stage gas flow regulating control valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218177948U true CN218177948U (en) | 2022-12-30 |
Family
ID=84609649
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221239772.7U Active CN218177948U (en) | 2022-05-23 | 2022-05-23 | Multi-stage gas flow regulating control valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218177948U (en) |
-
2022
- 2022-05-23 CN CN202221239772.7U patent/CN218177948U/en active Active
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