CN217177459U - Two-section type flow regulating structure of regulating valve - Google Patents
Two-section type flow regulating structure of regulating valve Download PDFInfo
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- CN217177459U CN217177459U CN202221130658.0U CN202221130658U CN217177459U CN 217177459 U CN217177459 U CN 217177459U CN 202221130658 U CN202221130658 U CN 202221130658U CN 217177459 U CN217177459 U CN 217177459U
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Abstract
The utility model discloses a two-stage flow regulating structure of a regulating valve, which comprises a valve body, a regulating valve core, a pressure reducing sleeve and a fixed valve seat; a circulation channel is formed in the valve body, the fixed valve seat is arranged in the circulation channel, and the pressure reducing sleeve is arranged above the fixed valve seat; the regulating valve core is arranged in the inner cavity of the pressure reducing sleeve and can move up and down in the inner cavity to realize the closing or opening of the circulation channel; the lower end of the regulating valve core is provided with a regulating head, and a regulating section matched with the regulating head is arranged in the corresponding fixed valve seat; when the flow is large, the valve core is matched with the pressure reducing sleeve, the pressure reducing sleeve has the main functions of reducing pressure and reducing speed, and meanwhile, the throttling head is completely separated from the valve seat and does not block fluid, so that the aim of large flow is fulfilled; at low flows, the regulating head cooperates with the valve seat to achieve regulation of miniflow by regulation of the distance of the regulation gap between the conical surface and the inner conical surface.
Description
Technical Field
The utility model relates to the technical field of valves, concretely relates to two segmentation flow control structures of governing valve.
Background
Valve products in the mechanical manufacturing industry usually open or close a fluid channel by rotating a valve rod and a valve core; in the high pressure difference working condition (liquid and gas medium), pressure reduction measures such as a disk or a multi-stage hole are generally used for regulating pressure reduction, namely, when a valve is selected, a labyrinth disk type regulating valve is usually selected.
However, the labyrinth disc regulating valve has the following defects due to the structure: firstly, the manufacturing cost is high, but the application range is small, and the market competitiveness is not strong; secondly, the inability to regulate miniflows limits the user's choice of regulating characteristics.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a two segmentation flow control structures of governing valve.
In order to achieve the purpose of the utility model, the utility model adopts the technical proposal that: a two-section flow regulating structure of a regulating valve comprises a valve body, a regulating valve core, a pressure reducing sleeve and a fixed valve seat; a circulation channel is formed in the valve body, the fixed valve seat is arranged in the circulation channel, and the pressure reducing sleeve is arranged above the fixed valve seat;
the regulating valve core is arranged in the inner cavity of the pressure reducing sleeve and can move up and down in the inner cavity to realize the closing or opening of the circulation channel; the lower end of the adjusting valve core is provided with an adjusting head, and an adjusting section matched with the adjusting head is arranged in the corresponding fixed valve seat.
Preferably, the outer side of the adjusting head is provided with a conical surface to form an inverted frustum structure; and an inner side surface which can be in sealing fit with the conical surface of the adjusting head is arranged in the adjusting section.
Wherein, the inner side surface is a cylindrical surface or a conical surface.
Preferably, the taper of the adjustment head is no more than 5 degrees.
When the inner side surface is a conical surface, the taper of the inner side surface is smaller than that of the outer side wall of the adjusting head.
Preferably, the outer side wall of the regulating valve core is provided with a plurality of grooves, and the grooves form a labyrinth circulation pressure reduction channel.
Preferably, a fixed gap is formed between the outer side wall of the regulating valve core and the inner side wall of the pressure reduction sleeve; an adjusting gap is formed between the conical surface and the inner side surface; the maximum adjustable flow capacity of the flow channel is determined by the pressure reducing sleeve, and the minimum adjustable flow capacity of the flow channel is determined by the fit area of the adjusting head and the adjusting section and the adjusting gap.
When the inner side surface is a cylindrical surface, the adjusting clearance is a clearance formed between the outer side wall of the adjusting valve core and the top end of the cylindrical surface of the adjusting section.
When the inner side surface is a conical surface, the adjusting gap is a gap formed between the bottom end of the adjusting head and the bottom end of the adjusting head by the conical surface of the adjusting section.
When the flow is large, the valve core is matched with the pressure reducing sleeve, the pressure reducing sleeve has the main pressure reducing and speed reducing functions, and meanwhile, the throttling head is completely separated from the valve seat and does not block fluid, so that the aim of large flow is fulfilled.
At low flows, the regulating head cooperates with the valve seat to achieve regulation of miniflow by regulation of the distance of the regulating gap between the conical surface and the inner lateral surface.
Preferably, the pressure reducing sleeve is composed of a plurality of metal discs which are overlapped to form a labyrinth structure and are connected through welding; the metal disc is provided with runner grooves, and a labyrinth flow path is formed between adjacent runner grooves; the labyrinth flow path can reduce the upper fluid flow and flow speed on the contact surface of the pressure reducing sleeve and the valve core.
The flow channel groove is a groove with two ends communicated with the inner cavity of the pressure reducing sleeve and the outer side wall of the pressure reducing sleeve.
Preferably, a sealing ring is arranged between the fixed valve seat and the valve body.
Preferably, the depth of the adjustment section is greater than the length of the adjustment head.
Because of the application of the technical scheme, compared with the prior art, the utility model has the following advantages:
1. the utility model discloses a two-section type flow regulating structure of a regulating valve, when the flow is large, a valve core is matched with a pressure reducing sleeve, the pressure reducing sleeve plays the main functions of pressure reduction and speed reduction, and simultaneously a throttling head is completely separated from a valve seat and does not block fluid, thereby achieving the purpose of large flow; at low flow, the regulating head cooperates with the valve seat to achieve regulation of miniflow by regulation of the distance of the regulation gap between the conical surface and the inner conical surface;
2. the utility model discloses a two-section flow regulating structure of a regulating valve, which is characterized in that a labyrinth flow path and a labyrinth circulation pressure-reducing channel are arranged, so that the regulating valve has the characteristics of high pressure erosion resistance, cavitation erosion resistance and noise reduction in large flow;
3. the utility model discloses a two-stage flow regulating structure of a regulating valve, which has simple installation, strong reliability and long service life; the cost is low, and the method is suitable for popularization and application.
Drawings
Fig. 1 is a schematic structural diagram 1 of embodiment 1 of the present invention;
fig. 2 is a schematic structural diagram 2 of embodiment 1 of the present invention;
fig. 3 is a schematic structural diagram 3 of embodiment 1 of the present invention;
FIG. 4 is a schematic structural diagram of a metal disc of the present invention 1;
FIG. 5 is a schematic structural diagram of a metal disc of the present invention shown in FIG. 2;
FIG. 6 is a schematic structural diagram of a metal disc of the present invention shown in FIG. 3;
fig. 7 is a schematic structural diagram of a position a of the present invention.
Wherein: 1. a valve body; 2. adjusting the valve core; 3. a pressure reducing sleeve; 4. a fixed valve seat; 5. a flow-through channel; 6. a seal ring; 7. an adjustment head; 8. adjusting the section; 9. fixing the gap; 10. adjusting the clearance; 11. and a flow channel groove.
Detailed Description
In order to make the above objects, features and advantages of the present invention more clearly understandable, the present invention is further described in detail with reference to the accompanying drawings and the detailed description, wherein the drawings are simplified schematic drawings, which illustrate the basic structure of the present invention only in a schematic manner, and thus show only the components related to the present invention, and it is to be noted that the embodiments and features of the embodiments in the present application can be combined with each other without conflict.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced otherwise than as specifically described herein and, therefore, the scope of the present invention is not limited by the specific embodiments disclosed below.
Example 1
Referring to fig. 1, 2, 3 and 7, a two-stage flow rate adjusting structure of an adjusting valve comprises a valve body 1, an adjusting valve core 2, a pressure reducing sleeve 3 and a fixed valve seat 4; a circulation channel 5 is formed in the valve body 1, the fixed valve seat 4 is installed in the circulation channel 5, and the pressure reducing sleeve 3 is installed above the fixed valve seat 4; and a sealing ring 6 is arranged between the fixed valve seat 4 and the valve body 1.
The regulating valve core 2 is arranged in the inner cavity of the pressure reduction sleeve 3 and can move up and down in the inner cavity to realize the closing or opening of the circulation channel 5; the lower end of the adjusting valve core 2 is provided with an adjusting head 7, and an adjusting section 8 matched with the adjusting head 7 is arranged in the corresponding fixed valve seat 4; the outer side of the adjusting head 7 is provided with a conical surface to form an inverted frustum structure;
the adjusting section 8 is a cylindrical groove, an inner side surface capable of being in sealing fit with the conical surface of the adjusting head 7 is arranged in the adjusting section 8, and the inner side surface is a cylindrical surface; the taper of the adjusting head 7 is 5 degrees.
The pressure reducing sleeve 3 is composed of a plurality of metal discs which are overlapped to form a labyrinth structure and are connected through welding; referring to fig. 4, 5 and 6, the metal disc is provided with flow channel grooves 11, and a labyrinth flow path is formed between adjacent flow channel grooves 11; a labyrinth flow path is formed between the flow channel grooves 11 of the metal discs at the uppermost layer and the lowermost layer and the side wall of the valve seat; the labyrinth flow path can reduce the upper fluid flow and flow speed on the contact surface of the pressure reducing sleeve 3 and the valve core.
A fixed gap 9 is formed between the outer side wall of the regulating valve core 2 and the inner side wall of the pressure reducing sleeve 3; an adjusting gap 10 is formed between the conical surface and the inner side surface; the adjusting gap 10 is a gap formed between the outer side wall of the adjusting valve core 2 and the top end of the cylindrical surface of the adjusting section 8 at the adjusting section 8.
In the actual use process, the valve rod drives the adjusting valve core 2 to move up and down, when the valve rod drives the adjusting valve rod to move down, the adjusting head 7 is inserted into the adjusting section 8, and the smaller the adjusting gap 10 is, the smaller the flow rate is.
The maximum adjustable flow capacity of the flow channel 5 is determined by the pressure reducing sleeve 3, and the minimum adjustable flow capacity of the flow channel 5 is determined by the fitting area of the adjusting head 7 with the adjusting section 8 and the adjusting gap 10.
When large-traffic, the case with reduce pressure sleeve 3 cooperation, reduce pressure sleeve 3 plays the main function that reduces pressure and slow down, and the choke point breaks away from the disk seat completely simultaneously, does not block the fluid to reach large-traffic purpose.
At low flows, the regulating head 7 cooperates with the valve seat to achieve regulation of the miniflow by regulation of the distance of the regulating gap 10 between the conical surface and the inner lateral surface.
The outer side wall of the regulating valve core 2 is provided with a plurality of grooves which form a labyrinth circulation pressure reduction channel; the labyrinth circulation pressure reducing channel on the outer side wall of the regulating valve core 2 can reduce the upper fluid flow and the flow speed on the contact surface of the pressure reducing sleeve 3 and the valve core.
Example 2
Referring to fig. 1, 2 and 3, a two-stage flow rate adjusting structure of a regulating valve includes a valve body 1, a regulating valve core 2, a pressure reducing sleeve 3 and a fixed valve seat 4; a circulation channel 5 is formed in the valve body 1, the fixed valve seat 4 is installed in the circulation channel 5, and the pressure reducing sleeve 3 is installed above the fixed valve seat 4; and a sealing ring 6 is arranged between the fixed valve seat 4 and the valve body 1.
The regulating valve core 2 is arranged in the inner cavity of the pressure reduction sleeve 3 and can move up and down in the inner cavity to realize the closing or opening of the circulation channel 5; the lower end of the adjusting valve core 2 is provided with an adjusting head 7, and an adjusting section 8 matched with the adjusting head 7 is arranged in the corresponding fixed valve seat 4; the outer side of the adjusting head 7 is provided with a conical surface to form an inverted frustum structure;
the adjusting section 8 is an inverted frustum groove, an inner side surface capable of being in sealing fit with the conical surface of the adjusting head 7 is formed in the adjusting section 8, and the inner side surface is a conical surface; the taper of the adjusting head 7 is 5 degrees, and the taper of the adjusting section 8 is 4 degrees.
The pressure reducing sleeve 3 is composed of a plurality of metal discs which are overlapped to form a labyrinth structure and are connected through welding; referring to fig. 4, 5 and 6, the metal disc is provided with flow channel grooves 11, and a labyrinth flow path is formed between adjacent flow channel grooves 11; a labyrinth flow path is formed between the flow channel grooves 11 of the metal discs at the uppermost layer and the lowermost layer and the side wall of the valve seat; the labyrinth flow path can reduce the upper fluid flow and flow speed on the contact surface of the pressure reducing sleeve 3 and the valve core.
A fixed gap 9 is formed between the outer side wall of the regulating valve core 2 and the inner side wall of the pressure reduction sleeve 3; an adjusting gap 10 is formed between the conical surface and the inner side surface; the adjusting gap 10 is a gap formed between the bottom end of the adjusting head 7 and the conical surface of the adjusting section 8 at the bottom end of the adjusting head 7.
In the actual use process, the valve rod drives the adjusting valve core 2 to move up and down, when the valve rod drives the adjusting valve rod to move down, the adjusting head 7 is inserted into the adjusting section 8, and the smaller the adjusting gap 10 is, the smaller the flow rate is.
The maximum adjustable flow capacity of the flow channel 5 is determined by the pressure reducing sleeve 3, and the minimum adjustable flow capacity of the flow channel 5 is determined by the fitting area of the adjusting head 7 with the adjusting section 8 and the adjusting gap 10.
When large-traffic, the case with reduce pressure sleeve 3 cooperation, reduce pressure sleeve 3 plays the main function that reduces pressure and slow down, and the choke point breaks away from the disk seat completely simultaneously, does not block the fluid to reach large-traffic purpose.
At low flows, the regulating head 7 cooperates with the valve seat to achieve regulation of the miniflow by regulation of the distance of the regulating gap 10 between the conical surface and the inner lateral surface.
The outer side wall of the regulating valve core 2 is provided with a plurality of grooves which form a labyrinth circulation pressure reduction channel; the labyrinth circulation pressure reducing channel on the outer side wall of the regulating valve core 2 can reduce the upper fluid flow and the flow speed on the contact surface of the pressure reducing sleeve 3 and the valve core.
In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art through specific situations.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to the above-described embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (8)
1. A two-section type flow regulating structure of a regulating valve, which is characterized in that,
comprises a valve body (1), an adjusting valve core (2), a pressure reducing sleeve (3) and a fixed valve seat (4); a circulation channel (5) is formed in the valve body (1), the fixed valve seat (4) is installed in the circulation channel (5), and the pressure reducing sleeve (3) is installed above the fixed valve seat (4);
the regulating valve core (2) is arranged in an inner cavity of the pressure reduction sleeve (3) and can move up and down in the inner cavity to close or open the circulation channel (5); the lower end of the adjusting valve core (2) is provided with an adjusting head (7), and the corresponding fixed valve seat (4) is internally provided with an adjusting section (8) matched with the adjusting head (7).
2. The two-stage flow rate adjusting structure of an adjusting valve according to claim 1, wherein the outer side of the adjusting head (7) is provided with a conical surface to form an inverted frustum structure; the inner side surface which can be in sealing fit with the conical surface of the adjusting head (7) is arranged in the adjusting section (8).
3. Two-stage flow regulating structure of a regulating valve according to claim 1, characterized in that the conicity of the regulating head (7) is not more than 5 degrees.
4. The two-stage flow rate regulating structure of a regulating valve according to claim 1, wherein the outer side wall of the regulating valve core (2) is provided with a plurality of grooves, and the grooves form a labyrinthine circulation pressure-reducing channel.
5. The two-stage flow rate regulating structure of a regulating valve according to claim 2, characterized in that a fixed gap (9) is formed between the outer side wall of the regulating valve core (2) and the inner side wall of the pressure reducing sleeve (3); an adjusting gap (10) is formed between the conical surface and the inner side surface.
6. Two-stage flow regulating structure of a regulating valve according to claim 1, characterized in that said pressure reducing sleeve (3) consists of a number of metal discs superimposed to form a labyrinth structure and connected by welding; the metal disc is provided with runner grooves (11), and a labyrinth flow path is formed between the adjacent runner grooves (11).
7. Two-stage flow regulating structure of a regulating valve according to claim 1, characterized in that a sealing ring (6) is installed between the fixed valve seat (4) and the valve body (1).
8. Two-stage flow regulating structure of a regulating valve according to claim 1, characterized in that the depth of the regulating section (8) is greater than the length of the regulating head (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221130658.0U CN217177459U (en) | 2022-05-11 | 2022-05-11 | Two-section type flow regulating structure of regulating valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221130658.0U CN217177459U (en) | 2022-05-11 | 2022-05-11 | Two-section type flow regulating structure of regulating valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217177459U true CN217177459U (en) | 2022-08-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221130658.0U Active CN217177459U (en) | 2022-05-11 | 2022-05-11 | Two-section type flow regulating structure of regulating valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217177459U (en) |
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- 2022-05-11 CN CN202221130658.0U patent/CN217177459U/en active Active
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