CN210859651U - Large-tonnage hydraulic damper damping valve for nuclear power station - Google Patents
Large-tonnage hydraulic damper damping valve for nuclear power station Download PDFInfo
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- CN210859651U CN210859651U CN201921460626.5U CN201921460626U CN210859651U CN 210859651 U CN210859651 U CN 210859651U CN 201921460626 U CN201921460626 U CN 201921460626U CN 210859651 U CN210859651 U CN 210859651U
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Abstract
The utility model discloses a large-tonnage hydraulic damper damping valve for nuclear power station, it includes: the valve body is provided with a first cavity, and a spring is arranged in the first cavity; the valve shell is positioned on one side of the valve body and is provided with a second cavity, and a valve core is arranged in the second cavity; the valve core comprises a front valve core and a rear valve core, the rear valve core is abutted against a spring, a damping spring is arranged between the front valve core and the rear valve core, and two ends of the damping spring are fixedly connected with the front valve core and the rear valve core respectively. Compared with the prior art, the utility model discloses in the large-tonnage hydraulic damper damping valve for the nuclear power station, damping spring plays the effect of preliminary decompression for whole attenuator has better damping effect.
Description
Technical Field
The utility model belongs to the technical field of the nuclear power, more specifically say, the utility model relates to a large-tonnage hydraulic damper damping valve for nuclear power station.
Background
In the existing large-tonnage hydraulic damper damping valve for the nuclear power station, the number and the aperture of the holes on the valve core are limited, and the adjusting capacity of hydraulic oil is limited. When the damping valve is locked, hydraulic oil can only pass through a locking circulation opening in the middle, so that a circulation channel is easily blocked, the hydraulic damper is completely changed into a rigid structure, the risk of serious damage to supported equipment exists, and even serious safety accidents are caused.
In view of the above, it is actually necessary to provide a large-tonnage hydraulic damper damping valve for a nuclear power plant with ideal safety performance, so as to overcome the defects in the prior art.
Disclosure of Invention
The utility model aims to provide a: the large-tonnage hydraulic damper damping valve for the nuclear power station, which overcomes the defects of the prior art, has ideal safety performance.
In order to achieve the above object, the present invention provides a large-tonnage hydraulic damper valve for a nuclear power station, which includes:
the valve body is provided with a first cavity, and a spring is arranged in the first cavity;
the valve shell is positioned on one side of the valve body and is provided with a second cavity, and a valve core is arranged in the second cavity;
the valve core comprises a front valve core and a rear valve core, the rear valve core is abutted against a spring, a damping spring is arranged between the front valve core and the rear valve core, and two ends of the damping spring are fixedly connected with the front valve core and the rear valve core respectively.
As an improvement of the large-tonnage hydraulic damper damping valve for the nuclear power station, the valve body is fixedly connected with the valve casing.
As the utility model discloses the nuclear power station is with an improvement of large-tonnage hydraulic damper damping valve, the central point of preceding case puts and is equipped with preceding valve circulation trompil, the central point of back case puts the correspondence and is equipped with the back valve flow through pipe that runs through the back case, and back valve flow through pipe can be in the front valve circulation trompil reciprocating motion in the trompil.
As the utility model discloses the nuclear power station is with an improvement of large-tonnage hydraulic damper damping valve, preceding case is equipped with the preceding valve circulation pipe that runs through preceding case around preceding valve circulation trompil, back case is equipped with the back valve circulation trompil that runs through the back case around back valve circulation pipe correspondence, and preceding valve circulation pipe can be at the back valve circulation trompil including reciprocating motion.
As an improvement of the large-tonnage hydraulic damper damping valve for the nuclear power station, the rear valve flow pipe and the front valve flow pipe are metal pipes.
As an improvement of the large-tonnage hydraulic damper damping valve for the nuclear power station, the outside of the front valve core and the rear valve core and the inner wall joint of the valve casing are provided with rubber ring pads.
As the utility model discloses the nuclear power station is with an improvement of large-tonnage hydraulic damper damping valve, the thickness of preceding case and back case is the same.
As the utility model discloses the nuclear power station is with an improvement of large-tonnage hydraulic damper damping valve, distance between preceding case and the back case equals with the thickness of preceding case and back case.
Compared with the prior art, the utility model discloses large-tonnage hydraulic damper damping valve for nuclear power station's beneficial technological effect lies in:
at first, be equipped with damping spring between preceding case and the back case, damping spring's both ends respectively with the lateral wall welded connection of preceding case, back case, when the case receives the extrusion in the front, preceding case moves to back case direction, and damping spring plays the effect of preliminary decompression for the damping effect of whole attenuator is better.
Secondly, the central point of preceding case puts and is equipped with preceding valve circulation trompil, and the central point of back case puts the corresponding welding rear valve circulation pipe that runs through the back case, and under normal conditions, rear valve circulation pipe one end is located the inside rightmost side of preceding valve circulation trompil, and when the preceding case received the extrusion and recovers under the damping spring effect, rear valve circulation pipe can be in the downthehole reciprocating motion of preceding valve circulation, can effectively prevent the through-hole jam. In addition, the front valve core is welded around the front valve core circulation opening hole to penetrate through the front valve core, the rear valve core is provided with a rear valve circulation opening hole penetrating through the rear valve core around the rear valve circulation pipe, the front valve circulation pipe can reciprocate in the rear valve circulation opening hole, and the through hole can be effectively prevented from being blocked.
Drawings
The large-tonnage hydraulic damper damping valve for a nuclear power station and the technical effects thereof according to the present invention will be described in detail with reference to the accompanying drawings and the specific embodiments.
FIG. 1 is a schematic structural diagram of a large-tonnage hydraulic damper damping valve for a nuclear power station.
Fig. 2 is a side view of the large-tonnage hydraulic damper valve for a nuclear power plant of the present invention.
FIG. 3 is a schematic diagram of the valve core structure of the large-tonnage hydraulic damper damping valve for the nuclear power station.
Symbol of elements
1-a valve body; 2-a valve core; 3-valve casing; 4-a spring; 5-a second cavity; 6-a first cavity; 7-front valve core; 8-rear valve core; 9-a damping spring; 10-front valve flow through opening; 11-a rear valve flow pipe; 12-front valve flow pipe; 13-rear valve through opening.
Detailed Description
In order to make the objects, technical solutions and technical effects of the present invention clearer, the present invention will be further described in detail with reference to the following embodiments. It should be understood that the detailed description and specific examples, while indicating the present invention, are given by way of illustration and not limitation.
Referring to fig. 1 to 3, the damping valve of the large-tonnage hydraulic damper for a nuclear power station of the present invention includes:
the valve comprises a valve body 1, wherein the valve body 1 is provided with a first cavity 6, and a spring 4 is arranged in the first cavity 6;
the valve shell 3 is positioned on one side of the valve body 1, the valve shell 3 is provided with a second cavity 5, and a valve core 2 is arranged in the second cavity 5;
wherein, case 2 includes preceding case 7 and back case 8, and back case 8 supports and leans on spring 4, is equipped with damping spring 9 between preceding case 7 and the back case 8, and damping spring 9's both ends respectively with preceding case 7, back case 8 fixed connection.
Referring to fig. 1, according to an embodiment of the present invention, a valve body 1 is integrally connected and fixed to a valve housing 3. The first cavity 6 and the second cavity 5 are both stepped holes, which can reasonably accommodate the spring 4 and the valve core 2.
Referring to fig. 3 in particular, a front valve through hole 10 is formed in the center of the front valve element 7, a rear valve through pipe 11 penetrating the rear valve element 8 is correspondingly formed in the center of the rear valve element 8, and the rear valve through pipe 11 is capable of reciprocating in the front valve through hole 10. The front valve core 7 is provided with a front valve through hole 12 penetrating through the front valve core 7 around the front valve through hole 10, the rear valve core 8 is correspondingly provided with a rear valve through hole 13 penetrating through the rear valve core 8 around the rear valve through hole 11, and the front valve through hole 12 can reciprocate in the rear valve through hole 13. In the illustrated embodiment, the rear-valve flow-through pipe 11 and the front-valve flow-through pipe 12 are both metal pipes.
According to the utility model discloses an embodiment of large-tonnage hydraulic damper damping valve for nuclear power station, preceding case 7 is the same with back case 8's thickness, and the distance between preceding case 7 and the back case 8 equals with preceding case 7 and back case 8's thickness. Rubber gasket (not shown) is provided at the junction of the outer sides of the front and rear valve elements 7 and 8 and the inner wall of the valve housing 3.
The utility model discloses the theory of operation of large-tonnage hydraulic damper damping valve for nuclear power station is: when the front valve core 7 is extruded, the front valve core 7 moves towards the rear valve core 8, and the damping spring 9 plays a role in preliminary pressure reduction, so that the whole damping valve has a better damping effect. When current case 7 received the extrusion and recovers under damping spring 9 effect, back valve circulation pipe 11 is reciprocating motion around in the valve circulation trompil 10 in the front, and preceding valve circulation pipe 12 is reciprocating motion around in the valve circulation trompil 13 in the back, can prevent effectively that preceding valve circulation trompil 10 from blockking up, causes the condition that the damping valve blockked up, avoids taking place serious incident.
Compared with the prior art, the utility model discloses large-tonnage hydraulic damper damping valve for nuclear power station's beneficial technological effect lies in:
firstly, be equipped with damping spring 9 between preceding case 7 and the back case 8, damping spring 9's both ends respectively with preceding case 7, the lateral wall welded connection of back case 8, when preceding case 7 received the extrusion, preceding case 7 moved to 8 directions of back case, and damping spring 9 can play the effect of preliminary decompression for whole attenuator has better damping effect.
Secondly, the central point of preceding case 7 puts and is equipped with preceding valve circulation trompil 10, and the central point of back case 8 puts the corresponding welding and runs through the back valve circulation pipe 11 of back case 8, and under normal conditions, back valve circulation pipe 11 one end is located inside preceding valve circulation trompil 10, and when preceding case 7 received the extrusion and recovered under the effect of damping spring 9, back valve circulation pipe 11 reciprocating motion in preceding valve circulation trompil 10 can effectively prevent to block up. In addition, the front valve core 7 is welded with a front valve flow-through pipe 12 penetrating through the front valve core 7 around the front valve core flow-through hole 10, the rear valve core 8 is provided with a rear valve flow-through hole 13 penetrating through the rear valve core 7 around the rear valve flow-through pipe 11, the front valve flow-through pipe 12 can reciprocate in the rear valve flow-through hole 13, and therefore the through hole can be effectively prevented from being blocked.
According to the above principle, the present invention can also make appropriate changes and modifications to the above embodiments. Therefore, the present invention is not limited to the specific embodiments disclosed and described above, and some modifications and changes to the present invention should fall within the protection scope of the claims of the present invention. Furthermore, although specific terms are employed herein, they are used in a generic and descriptive sense only and not for purposes of limitation.
Claims (8)
1. The utility model provides a large-tonnage hydraulic damper damping valve for nuclear power station which characterized in that includes:
the valve body is provided with a first cavity, and a spring is arranged in the first cavity;
the valve shell is positioned on one side of the valve body and is provided with a second cavity, and a valve core is arranged in the second cavity;
the valve core comprises a front valve core and a rear valve core, the rear valve core is abutted against a spring, a damping spring is arranged between the front valve core and the rear valve core, and two ends of the damping spring are fixedly connected with the front valve core and the rear valve core respectively.
2. The large-tonnage hydraulic damper damping valve for nuclear power plants as recited in claim 1, wherein said valve body is integrally connected and fixed with said valve housing.
3. The large-tonnage hydraulic damper damping valve for nuclear power plants as recited in claim 1, wherein a front valve flow opening is provided at the center of the front valve core, a rear valve flow pipe penetrating the rear valve core is correspondingly provided at the center of the rear valve core, and the rear valve flow pipe can reciprocate in the front valve flow opening.
4. The large-tonnage hydraulic damper damping valve for nuclear power plants as recited in claim 3, wherein the front valve core is provided with a front valve flow-through pipe penetrating the front valve core around the front valve flow-through opening, the rear valve core is correspondingly provided with a rear valve flow-through opening penetrating the rear valve core around the rear valve flow-through pipe, and the front valve flow-through pipe can reciprocate inside the rear valve flow-through opening.
5. The large-tonnage hydraulic damper damping valve for nuclear power plants as recited in claim 4, wherein said rear valve flow-through tube and said front valve flow-through tube are metal tubes.
6. The large-tonnage hydraulic damper damping valve for nuclear power plants as recited in claim 1, characterized in that rubber gasket pads are provided at the joints of the outer sides of the front and rear valve cores and the inner wall of the valve housing.
7. The large-tonnage hydraulic damper damping valve for nuclear power plants as recited in claim 1, wherein the front spool and the rear spool are the same thickness.
8. The large-tonnage hydraulic damper valve for nuclear power plants as recited in claim 7, wherein the distance between said front and rear valve spools is equal to the thickness of the front and rear valve spools.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921460626.5U CN210859651U (en) | 2019-09-04 | 2019-09-04 | Large-tonnage hydraulic damper damping valve for nuclear power station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921460626.5U CN210859651U (en) | 2019-09-04 | 2019-09-04 | Large-tonnage hydraulic damper damping valve for nuclear power station |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210859651U true CN210859651U (en) | 2020-06-26 |
Family
ID=71308344
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921460626.5U Active CN210859651U (en) | 2019-09-04 | 2019-09-04 | Large-tonnage hydraulic damper damping valve for nuclear power station |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210859651U (en) |
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2019
- 2019-09-04 CN CN201921460626.5U patent/CN210859651U/en active Active
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