CN220727241U - Steel casting for main valve body of nuclear power unit - Google Patents
Steel casting for main valve body of nuclear power unit Download PDFInfo
- Publication number
- CN220727241U CN220727241U CN202322086254.7U CN202322086254U CN220727241U CN 220727241 U CN220727241 U CN 220727241U CN 202322086254 U CN202322086254 U CN 202322086254U CN 220727241 U CN220727241 U CN 220727241U
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- Prior art keywords
- mounting groove
- radial
- sealing ring
- sensor mounting
- steam outlet
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 12
- 238000005266 casting Methods 0.000 title claims abstract description 12
- 239000010959 steel Substances 0.000 title claims abstract description 12
- 238000007789 sealing Methods 0.000 claims abstract description 58
- 230000000149 penetrating effect Effects 0.000 claims abstract description 9
- 229910001220 stainless steel Inorganic materials 0.000 claims description 11
- 239000010935 stainless steel Substances 0.000 claims description 11
- 238000009434 installation Methods 0.000 claims description 7
- 238000005452 bending Methods 0.000 claims description 6
- 229910001208 Crucible steel Inorganic materials 0.000 claims description 4
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
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- Valve Housings (AREA)
Abstract
The utility model discloses a steel casting of a main valve body of a nuclear power unit, which comprises a valve casing, wherein a valve cavity is arranged in the valve casing, a steam inlet and a steam outlet are arranged on the valve casing, a steam inlet channel is arranged between the steam inlet and the valve cavity, a steam outlet channel is arranged between the steam outlet and the valve cavity, and a first flow sensor mounting groove, a first temperature sensor mounting groove and a first pressure sensor mounting groove are arranged on the inner wall surface of the steam inlet channel; a second flow sensor mounting groove, a second temperature sensor mounting groove and a second pressure sensor mounting groove are formed in the inner wall surface of the steam outlet channel; the outer port position of the steam inlet is provided with a first sealing ring mounting groove, the local position of the first sealing ring mounting groove is provided with a plurality of first radial through holes, and a first sealing ring positioning clamp is arranged in each first radial through hole in a penetrating mode. Above-mentioned technical scheme, structural design is reasonable, sensor simple to operate, sealing washer location are reliable, convenient to use and practicality are good.
Description
Technical Field
The utility model relates to the technical field of nuclear power units, in particular to a steel casting of a main valve body of a nuclear power unit.
Background
The main valve of the nuclear power unit has the main functions of: the main steam valve can cut off the main steam for the high-pressure cylinder of the steam turbine rapidly when receiving the trip signal, but the valve body cast steel of the main steam valve of the existing nuclear power unit is unreasonable in structural design, the inner wall surface of the valve body cast steel of the main steam valve of the existing nuclear power unit is smooth, a sensor mounting groove is not formed, after the existing valve body cast steel is assembled into the main steam valve of the nuclear power unit, a flow sensor, a temperature sensor, a pressure sensor and the like cannot be mounted in the main steam valve of the nuclear power unit, positioning pieces are not arranged in the sealing ring mounting grooves at the steam inlet and the steam outlet, the sealing ring cannot be positioned, the sealing ring is easy to drop during mounting, the assembly operation is troublesome, the use is inconvenient, and the practicability is poor.
Disclosure of Invention
Aiming at the defects existing in the prior art, the utility model aims to provide the main valve body steel casting of the nuclear power unit, which has reasonable structural design, convenient sensor installation, reliable positioning of a sealing ring, convenient use and good practicability.
In order to achieve the above purpose, the present utility model provides the following technical solutions: the steel casting of the main valve body of the nuclear power unit comprises a valve casing, wherein a valve cavity is arranged in the valve casing, a steam inlet and a steam outlet are arranged on the valve casing, a steam inlet channel is arranged between the steam inlet and the valve cavity, a steam outlet channel is arranged between the steam outlet and the valve cavity, and a first flow sensor mounting groove, a first temperature sensor mounting groove and a first pressure sensor mounting groove are formed in the inner wall surface of the steam inlet channel; a second flow sensor mounting groove, a second temperature sensor mounting groove and a second pressure sensor mounting groove are formed in the inner wall surface of the steam outlet channel;
the steam inlet is provided with a first sealing ring mounting groove at the outer port, a plurality of first radial through holes are formed in the local position of the first sealing ring mounting groove, and a first sealing ring positioning clamp is arranged in each first radial through hole in a penetrating manner; the steam outlet is provided with a second sealing ring mounting groove at the outer port, a plurality of second radial through holes are formed in the local position of the second sealing ring mounting groove, and a second sealing ring positioning clamp is arranged in each second radial through hole in a penetrating mode.
The utility model is further provided with: the first sealing ring positioning clamp comprises a first handle, a first connecting rod and a first U-shaped clamp, wherein the inner end of the first handle is fixedly connected with the outer end of the first connecting rod, the inner end of the first connecting rod is fixedly connected with the bending part of the first U-shaped clamp, and a plurality of first positioning clamping grooves are formed in the inner wall surface of the clamping part of the first U-shaped clamp.
The utility model is further arranged to: the second sealing ring locating clamp comprises a second handle, a second connecting rod and a second U-shaped clamp, wherein the inner end of the second handle is fixedly connected with the outer end of the second connecting rod, the inner end of the second connecting rod is fixedly connected with the bending part of the second U-shaped clamp, and a plurality of second locating clamping grooves are formed in the inner wall surface of the clamping part of the second U-shaped clamp.
The utility model is further arranged to: the inner wall surface of the first radial through hole is provided with an internal thread, and the first radial through hole is provided with a first stainless steel connecting bolt.
The utility model is further arranged to: the inner wall surface of the second radial through hole is provided with an internal thread, and the second radial through hole is provided with a second stainless steel connecting bolt.
The utility model is further arranged to: the central axes of the steam inlet and the steam outlet are mutually perpendicular, the valve shell is provided with a valve rod installation through hole aligned with the steam outlet, and the central axis of the valve rod installation through hole coincides with the central axis of the steam outlet.
The beneficial effects of the utility model are as follows: compared with the prior art, the structure of the utility model is more reasonable, the steam inlet channel and the steam outlet channel of the valve casing are internally provided with the temperature sensor mounting groove and the pressure sensor mounting groove of the flow sensor mounting groove, and various sensors are convenient to mount; the outer port of the steam inlet is provided with a first sealing ring mounting groove, a first radial through hole is formed in a local position of the first sealing ring mounting groove, and a first sealing ring positioning clamp is arranged in each first radial through hole in a penetrating manner; the outer port position of steam outlet is provided with the second sealing washer mounting groove, and the local position of second sealing washer mounting groove is provided with the radial through-hole of second, wears to be equipped with second sealing washer locating clip in every radial through-hole of second, and first sealing washer locating clip can fix a position the sealing washer of steam inlet department, and second sealing washer locating clip can fix a position the sealing washer of steam outlet department for the sealing washer location of steam inlet and steam outlet department is reliable when the external part of valve casing, is difficult for dropping, equipment operation is easy, convenient to use, and the practicality is good.
The utility model is further described below with reference to the drawings and specific examples.
Drawings
FIG. 1 is a schematic diagram of an embodiment of the present utility model;
FIG. 2 is an enlarged schematic view of section I of FIG. 1;
FIG. 3 is an enlarged schematic view of section II of FIG. 1;
fig. 4 is a schematic structural view of the stainless steel connecting bolt according to the embodiment of the present utility model.
Detailed Description
In the description of the present embodiment, it should be noted that, if terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", "front", "rear", and the like are presented, the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, only for convenience of describing the present utility model and simplifying the description, and does not indicate or imply that the indicated apparatus or element must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," "third," and the like, as used herein, are used for descriptive purposes only and are not to be construed as indicating or implying any relative importance.
Referring to fig. 1, 2, 3 and 4, the steel casting of the main valve body of the nuclear power unit disclosed by the utility model comprises a valve shell 1, wherein a valve cavity 11 is arranged in the valve shell 1, a steam inlet 12 and a steam outlet 13 are arranged on the valve shell 1, a steam inlet channel 14 is arranged between the steam inlet 12 and the valve cavity 11, a steam outlet channel 15 is arranged between the steam outlet 13 and the valve cavity 11, and a first flow sensor mounting groove 141, a first temperature sensor mounting groove 142 and a first pressure sensor mounting groove 143 are arranged on the inner wall surface of the steam inlet channel 14; a second flow sensor mounting groove 151, a second temperature sensor mounting groove 152 and a second pressure sensor mounting groove 153 are provided on the inner wall surface of the steam outlet passage 15;
a first sealing ring mounting groove 121 is arranged at the outer port position of the steam inlet 12, a plurality of first radial through holes 122 are arranged at the local position of the first sealing ring mounting groove 121, and a first sealing ring positioning clamp is arranged in each first radial through hole 122 in a penetrating manner; the outer port position of the steam outlet 13 is provided with a second sealing ring mounting groove 131, a local position of the second sealing ring mounting groove 131 is provided with a plurality of second radial through holes 132, and a second sealing ring positioning clamp is arranged in each second radial through hole 132 in a penetrating manner.
As preferable, the first flow sensor mounting groove 141, the first temperature sensor mounting groove 142, the first pressure sensor mounting groove 143, the second flow sensor mounting groove 151, the second temperature sensor mounting groove 152, and the second pressure sensor mounting groove 153 are rectangular grooves or circular grooves. The first flow sensor mounting groove 141, the first temperature sensor mounting groove 142, the first pressure sensor mounting groove 143, the second flow sensor mounting groove 151, the second temperature sensor mounting groove 152 and the second pressure sensor mounting groove 153 may be provided with connection screw holes, and the connection screw holes are blind holes.
The number of the first radial through holes 122 and the second radial through holes 132 is 2-4, when the number of the first radial through holes 122 and the second radial through holes 132 is 2, the 2 first radial through holes 122 are symmetrically arranged, and the 2 second radial through holes 132 are symmetrically arranged; when the number of the first radial through holes 122 and the second radial through holes 132 is set to 3 to 4, the first radial through holes 122 and the second radial through holes 132 are uniformly distributed in a ring shape.
In order to make the structural arrangement of the utility model more reasonable, as an optimization, the first sealing ring positioning clamp in the embodiment comprises a first handle 3, a first connecting rod 4 and a first U-shaped clamp 5, wherein the inner end of the first handle 3 is fixedly connected with the outer end of the first connecting rod 4, the inner end of the first connecting rod 4 is fixedly connected with the bending part of the first U-shaped clamp 5, and a plurality of first positioning clamping grooves are formed in the inner wall surface of the clamping part of the first U-shaped clamp 5.
Preferably, the first handle 3, the first connecting rod 4 and the first U-shaped clamp 5 are integrally arranged, the first handle 3, the first connecting rod 4 and the first U-shaped clamp 5 are made of plastic, the first U-shaped clamp 5 has elasticity, at least 1 first positioning clamping groove is formed in the inner wall surface of the clamping part of the first U-shaped clamp 5, and the first positioning clamping groove is an arc-shaped groove.
The second sealing ring positioning clamp comprises a second handle 6, a second connecting rod 7 and a second U-shaped clamp 8, wherein the inner end of the second handle 6 is fixedly connected with the outer end of the second connecting rod 7, the inner end of the second connecting rod 7 is fixedly connected with the bending part of the second U-shaped clamp 8, and a plurality of second positioning clamping grooves are formed in the inner wall surface of the clamping part of the second U-shaped clamp 8.
Preferably, the second handle 6, the second connecting rod 7 and the second U-shaped clamp 8 are integrally arranged, the second handle 6, the second connecting rod 7 and the second U-shaped clamp 8 are made of plastic, the second U-shaped clamp 8 has elasticity, at least 1 second positioning clamping groove is formed in the inner wall surface of the clamping part of the second U-shaped clamp 8, and the first positioning clamping groove is an arc-shaped groove.
When the steam inlet 12 is connected with an external component, the first sealing ring locating clips are all pulled out of the first radial through holes 122, and when the steam outlet 13 is connected with an external component, the second sealing ring locating clips are all pulled out of the second radial through holes 132.
An inner wall surface of the first radial through hole 122 is provided with an inner thread, and a first stainless steel connecting bolt 9 is arranged at the first radial through hole 122. When the first sealing ring positioning clamp is pulled out of the first radial through hole 122, the first stainless steel connecting bolt 9 is installed, the first stainless steel connecting bolt 9 is in threaded connection with the aligned first radial through hole 122, and the joint forms a seal.
An inner thread is provided on the inner wall surface of the second radial through hole 132, and a second stainless steel connecting bolt 10 is provided at the second radial through hole 132. When the second sealing ring positioning clamp is pulled out of the second radial through hole 132, the second stainless steel connecting bolt 10 is installed, the second stainless steel connecting bolt 10 is in threaded connection with the aligned second radial through hole 132, and the joint forms a seal.
The central axes of the steam inlet 12 and the steam outlet 13 are mutually perpendicular, the valve shell 1 is provided with a valve rod installation through hole 16 aligned with the steam outlet, and the central axis of the valve rod installation through hole 16 coincides with the central axis of the steam outlet 13.
In practical application, the steam inlet channel and the steam outlet channel of the valve casing are internally provided with a temperature sensor mounting groove and a pressure sensor mounting groove of the flow sensor mounting groove, so that the structural design is reasonable, and various sensors are convenient to mount; the outer port of the steam inlet is provided with a first sealing ring mounting groove, a first radial through hole is formed in a local position of the first sealing ring mounting groove, and a first sealing ring positioning clamp is arranged in each first radial through hole in a penetrating manner; the outer port position of steam outlet is provided with the second sealing washer mounting groove, and the local position of second sealing washer mounting groove is provided with the radial through-hole of second, wears to be equipped with second sealing washer locating clip in every radial through-hole of second, and first sealing washer locating clip can fix a position the sealing washer of steam inlet department, and second sealing washer locating clip can fix a position the sealing washer of steam outlet department for the sealing washer location of steam inlet and steam outlet department is reliable when the external part of valve casing, is difficult for dropping, equipment operation is easy, convenient to use, and the practicality is good.
The foregoing embodiments are provided for further explanation of the present utility model and are not to be construed as limiting the scope of the present utility model, and some insubstantial modifications and variations of the present utility model, which are within the scope of the utility model, will be suggested to those skilled in the art in light of the foregoing teachings.
Claims (6)
1. The utility model provides a nuclear power unit main valve body cast steel spare, includes valve casing (1), be provided with valve pocket (11) in valve casing (1), be provided with steam inlet (12) and steam outlet (13) on valve casing (1), be provided with steam inlet channel (14) between steam inlet (12) and valve pocket (11), be provided with steam outlet channel (15) between steam outlet (13) and valve pocket (11), its characterized in that: a first flow sensor mounting groove (141), a first temperature sensor mounting groove (142) and a first pressure sensor mounting groove (143) are formed in the inner wall surface of the steam inlet channel (14); a second flow sensor mounting groove (151), a second temperature sensor mounting groove (152) and a second pressure sensor mounting groove (153) are formed in the inner wall surface of the steam outlet channel (15);
a first sealing ring mounting groove (121) is formed in the outer port of the steam inlet (12), a plurality of first radial through holes (122) are formed in the local position of the first sealing ring mounting groove (121), and a first sealing ring positioning clamp is arranged in each first radial through hole in a penetrating mode; the steam outlet (13) is provided with a second sealing ring mounting groove (131) at the outer port position, a plurality of second radial through holes (132) are formed in the local positions of the second sealing ring mounting groove (131), and a second sealing ring positioning clamp is arranged in each second radial through hole (132) in a penetrating mode.
2. The nuclear power unit main valve body steel casting of claim 1, wherein: the first sealing ring positioning clamp comprises a first handle (3), a first connecting rod (4) and a first U-shaped clamp (5), wherein the inner end of the first handle (3) is fixedly connected with the outer end of the first connecting rod (4), the inner end of the first connecting rod (4) is fixedly connected with the bending part of the first U-shaped clamp (5), and a plurality of first positioning clamping grooves are formed in the inner wall surface of the clamping part of the first U-shaped clamp (5).
3. The nuclear power unit main valve body steel casting of claim 2, wherein: the second sealing ring locating clamp comprises a second handle (6), a second connecting rod (7) and a second U-shaped clamp (8), wherein the inner end of the second handle (6) is fixedly connected with the outer end of the second connecting rod (7), the inner end of the second connecting rod (7) is fixedly connected with the bending part of the second U-shaped clamp (8), and a plurality of second locating clamping grooves are formed in the inner wall surface of the clamping part of the second U-shaped clamp (8).
4. A nuclear power unit main valve body steel casting as claimed in claim 3, wherein: an inner thread is arranged on the inner wall surface of the first radial through hole (122), and a first stainless steel connecting bolt (9) is arranged at the first radial through hole (122).
5. The steel casting for the main valve body of the nuclear power unit according to claim 4, wherein: an inner thread is arranged on the inner wall surface of the second radial through hole (132), and a second stainless steel connecting bolt (10) is arranged at the second radial through hole (132).
6. The nuclear power unit main valve body steel casting of claim 5, wherein: the central axes of the steam inlet (12) and the steam outlet (13) are mutually perpendicular, the valve shell (1) is provided with a valve rod installation through hole (16) aligned with the steam outlet, and the central axis of the valve rod installation through hole (16) coincides with the central axis of the steam outlet (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322086254.7U CN220727241U (en) | 2023-08-04 | 2023-08-04 | Steel casting for main valve body of nuclear power unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322086254.7U CN220727241U (en) | 2023-08-04 | 2023-08-04 | Steel casting for main valve body of nuclear power unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220727241U true CN220727241U (en) | 2024-04-05 |
Family
ID=90494543
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322086254.7U Active CN220727241U (en) | 2023-08-04 | 2023-08-04 | Steel casting for main valve body of nuclear power unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220727241U (en) |
-
2023
- 2023-08-04 CN CN202322086254.7U patent/CN220727241U/en active Active
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