CN220980411U - Steam pressure reducing valve - Google Patents
Steam pressure reducing valve Download PDFInfo
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- CN220980411U CN220980411U CN202322420433.XU CN202322420433U CN220980411U CN 220980411 U CN220980411 U CN 220980411U CN 202322420433 U CN202322420433 U CN 202322420433U CN 220980411 U CN220980411 U CN 220980411U
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- 238000003780 insertion Methods 0.000 claims abstract description 26
- 230000037431 insertion Effects 0.000 claims abstract description 26
- 230000001105 regulatory effect Effects 0.000 claims abstract description 11
- 238000007789 sealing Methods 0.000 claims description 9
- 230000002776 aggregation Effects 0.000 abstract description 5
- 238000004220 aggregation Methods 0.000 abstract description 5
- 239000002131 composite material Substances 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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Abstract
The steam pressure reducing valve comprises an inlet channel, a guide-out channel is arranged at the side part of the inlet channel, an inner insertion pipe is arranged in the inlet channel, a conduction gap is arranged between the inner insertion pipe and the inlet channel, a transverse channel is arranged at the position of the inner insertion pipe corresponding to the conduction gap, and an adjusting valve core is arranged in the inner insertion pipe; the bottom of the regulating valve core is provided with a bottom bracket, a flow channel is arranged on the bottom bracket, and a valve rod is arranged on the flow channel. According to the application, through the composite arrangement of the inner insertion pipe and the regulating valve core, steam can be better split and reduced in pressure, so that concentrated aggregation of superheated steam is avoided, the stability of the valve core part is ensured, and fatigue damage is avoided.
Description
Technical Field
The application relates to a steam pressure reducing valve.
Background
Steam is a main way of transferring heat energy, and a great number of steam pipelines are needed in both power plants and chemical plants, and various types of steam pressure reducing valves are also needed in the steam pipelines to meet the requirements in order to adjust steam parameters to meet the use requirements of equipment or avoid equipment damage.
In the conventional vapor pressure reducing valve, since the plug installed in the bypass valve has the same width as the valve seat portion, the vapor passage formed between the lower wing portions of the valve seat portion has the same width as the upper side, and this causes the superheated vapor to accumulate in the contact area with the valve seat, which causes the density of the superheated vapor to rapidly increase, and the internal pressure to rapidly change, which causes the problem of stability of the valve element portion and the problem of fatigue damage to the valve element portion.
Disclosure of utility model
In order to solve the above problems, the present application provides a vapor pressure reducing valve, which comprises an inlet channel, an outlet channel is arranged at the side of the inlet channel, an inner insertion tube is arranged in the inlet channel, a conduction gap is arranged between the inner insertion tube and the inlet channel, a transverse channel is arranged at the position of the inner insertion tube corresponding to the conduction gap, and an adjusting valve core is arranged in the inner insertion tube; the bottom of the regulating valve core is provided with a bottom bracket, a flow channel is arranged on the bottom bracket, and a valve rod is arranged on the flow channel. According to the application, through the composite arrangement of the inner insertion pipe and the regulating valve core, steam can be better split and reduced in pressure, so that concentrated aggregation of superheated steam is avoided, the stability of the valve core part is ensured, and fatigue damage is avoided.
Preferably, the bottom bracket comprises an annular seat, a positioning ring is arranged on the annular seat, and a plurality of guide plates which are vertically arranged relatively are arranged in the annular seat.
Preferably, the guide plate is a conical plate with the cross section area gradually increasing from bottom to top, and a vertical hole is formed in the inner side of the conical plate. The application adopts the design form of the conical plate, can be matched with the valve rod, plays the role of flow adjustment and also plays the role of flow guide, and avoids the transition aggregation of steam.
Preferably, the circulating channel comprises a lower frame fixedly connected with the positioning ring, a circulating space is arranged at the upper part of the lower frame, a vertical channel is arranged on the circulating space, and an upper frame is arranged at the top of the vertical channel. The adjusting valve core part of the application adopts a split type arrangement mode, firstly, the assembly, the replacement and the maintenance can be convenient, and secondly, the manufacturing difficulty is reduced, thereby reducing the manufacturing cost of the equipment.
Preferably, the valve rod comprises an adjusting head inserted into the bottom bracket, a plug is fixedly connected with the adjusting head, the plug is opposite to the flow channel, and the valve rod is fixedly connected with the adjusting head.
Preferably, a sealing seat is sleeved on the valve rod, a top connecting seat is arranged at the top of the guide-in channel, and the sealing seat and the top connecting seat are fixedly connected through a connecting bolt in a sealing way.
Preferably, an adjustment handle is provided on the top of the valve stem.
Preferably, a tapered bottom baffle is provided at the bottom of the inner insertion tube.
The application has the following beneficial effects:
1. According to the application, through the composite arrangement of the inner insertion pipe and the regulating valve core, steam can be better split and reduced in pressure, so that concentrated aggregation of superheated steam is avoided, the stability of the valve core part is ensured, and fatigue damage is avoided.
2. The application adopts the design form of the conical plate, can be matched with the valve rod, plays the role of flow adjustment and also plays the role of flow guide, and avoids the transition aggregation of steam.
3. The adjusting valve core part of the application adopts a split type arrangement mode, firstly, the assembly, the replacement and the maintenance can be convenient, and secondly, the manufacturing difficulty is reduced, thereby reducing the manufacturing cost of the equipment.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the application and do not constitute a limitation on the application. In the drawings:
FIG. 1 is a schematic diagram of the structure of the present application;
FIG. 2 is a schematic diagram of an explosive structure according to the present application;
Fig. 3 is a schematic diagram of an exploded construction of the regulator valve cartridge.
Detailed Description
In order to clearly illustrate the technical features of the present solution, the present application will be described in detail below with reference to the following detailed description and the accompanying drawings.
In a first embodiment, as shown in fig. 1, a steam pressure reducing valve comprises an inlet channel 1, an outlet channel 2 is arranged at the side part of the inlet channel 1, an inner insertion tube 3 is arranged in the inlet channel 1, a conduction gap 4 is arranged between the inner insertion tube 3 and the inlet channel 1, a transverse channel 30 is arranged at the position of the inner insertion tube 3 corresponding to the conduction gap 4, and a regulating valve core 6 is arranged in the inner insertion tube 3; the bottom of the regulating valve core 6 is provided with a bottom bracket 7, a flow channel 5 is arranged on the bottom bracket 7, and a valve rod 8 is arranged on the flow channel 5.
When the steam pressure reducing valve is used, steam is led in from the leading-in channel 1, firstly enters the conducting gap 4, then enters the circulating channel 5 through the conducting gap 4, and is subjected to flow limiting circulation under the action of the regulating valve core 6, then enters the leading-out channel 2 through the circulating channel 5, so that the pressure reducing operation of the steam is completed.
In a second embodiment, as shown in fig. 1-3, a steam pressure reducing valve comprises an inlet channel 1, an outlet channel 2 is arranged at the side part of the inlet channel 1, an inner insertion tube 3 is arranged in the inlet channel 1, a conduction gap 4 is arranged between the inner insertion tube 3 and the inlet channel 1, a transverse channel 30 is arranged at the position of the inner insertion tube 3 corresponding to the conduction gap 4, and a regulating valve core 6 is arranged in the inner insertion tube 3; the bottom of the regulating valve core 6 is provided with a bottom bracket 7, a flow channel 5 is arranged on the bottom bracket 7, and a valve rod 8 is arranged on the flow channel 5. The bottom bracket 7 comprises an annular seat 9, a positioning ring 10 is arranged on the annular seat 9, and a plurality of guide plates 11 which are arranged vertically relatively are arranged in the annular seat 9. The guide plate 11 is a tapered plate 12 with a cross-sectional area gradually increasing from bottom to top, and a vertical hole 13 is arranged on the inner side of the tapered plate. The circulation channel 5 comprises a lower frame 14 fixedly connected with the positioning ring 10, a circulation space 15 is arranged at the upper part of the lower frame 14, a vertical channel 16 is arranged on the circulation space 15, and an upper frame 17 is arranged at the top of the vertical channel 16. The valve rod 8 comprises an adjusting head 18 inserted into the bottom bracket 7, a plug 19 is fixedly connected with the adjusting head 18, the plug 19 is opposite to the flow channel 5, and the valve rod 8 is fixedly connected with the adjusting head 18. A sealing seat 20 is sleeved on the valve rod 8, a top connecting seat 21 is arranged at the top of the leading-in channel 1, and the sealing seat 20 and the top connecting seat 21 are fixedly connected through a connecting bolt in a sealing way. An adjustment knob 22 is provided on top of the valve stem 8. A conical bottom baffle 23 is provided at the bottom of the inner insertion tube 3.
When the steam pressure reducing device is used, steam is led in from the leading-in channel 1, firstly enters the conducting gap 4, then enters the flow channel 5 through the conducting gap 4, then passes through the gap between the adjusting head 18 and the conical plate, and can adjust the flow area by adjusting the position of the adjusting head 18 when the adjustment is needed, then the steam passes through the flow channel 5 and enters the leading-out channel 2, so that the pressure reducing operation of the steam is completed.
The foregoing is merely exemplary of the present application and is not intended to limit the present application. Various modifications and variations of the present application will be apparent to those skilled in the art. Any modification, equivalent replacement, improvement, etc. which come within the spirit and principles of the application are to be included in the scope of the claims of the present application.
Claims (8)
1. A vapor pressure relief valve, characterized in that: the guide-in device comprises a guide-in channel, wherein a guide-out channel is arranged at the side part of the guide-in channel, an inner insertion pipe is arranged in the guide-in channel, a conduction gap is arranged between the inner insertion pipe and the guide-in channel, a transverse channel is arranged at the position of the inner insertion pipe corresponding to the conduction gap, and an adjusting valve core is arranged in the inner insertion pipe; the bottom of the regulating valve core is provided with a bottom bracket, a flow channel is arranged on the bottom bracket, and a valve rod is arranged on the flow channel.
2. A vapor pressure reducing valve as set forth in claim 1, wherein: the bottom bracket comprises an annular seat, a positioning ring is arranged on the annular seat, and a plurality of guide plates which are vertically arranged relatively are arranged in the annular seat.
3. A vapor pressure reducing valve as set forth in claim 2, wherein: the guide plate is a conical plate with the cross section area gradually increasing from bottom to top, and a vertical hole is formed in the inner side of the conical plate.
4. A vapor pressure reducing valve according to claim 3, wherein: the circulating channel comprises a lower frame fixedly connected with the positioning ring, a circulating space is arranged on the upper portion of the lower frame, a vertical channel is arranged on the circulating space, and an upper frame is arranged on the top of the vertical channel.
5. A vapor pressure reducing valve as defined in claim 4, wherein: the valve rod comprises an adjusting head inserted into the bottom bracket, a plug is fixedly connected with the adjusting head, the plug is arranged opposite to the flow channel, and the valve rod is fixedly connected with the adjusting head.
6. A vapor pressure reducing valve as set forth in claim 1, wherein: the valve rod is sleeved with a sealing seat, the top of the leading-in channel is provided with a top connecting seat, and the sealing seat and the top connecting seat are fixedly connected through a connecting bolt in a sealing way.
7. The vapor pressure relief valve of claim 6, wherein: an adjusting handle is arranged at the top of the valve rod.
8. A vapor pressure reducing valve as set forth in claim 1, wherein: a conical bottom baffle is provided at the bottom of the inner insertion tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322420433.XU CN220980411U (en) | 2023-09-06 | 2023-09-06 | Steam pressure reducing valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322420433.XU CN220980411U (en) | 2023-09-06 | 2023-09-06 | Steam pressure reducing valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220980411U true CN220980411U (en) | 2024-05-17 |
Family
ID=91037222
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322420433.XU Active CN220980411U (en) | 2023-09-06 | 2023-09-06 | Steam pressure reducing valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220980411U (en) |
-
2023
- 2023-09-06 CN CN202322420433.XU patent/CN220980411U/en active Active
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