CN215069284U - Bypass flow prevention device for reactor core simulator outlet - Google Patents
Bypass flow prevention device for reactor core simulator outlet Download PDFInfo
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- CN215069284U CN215069284U CN202120009831.0U CN202120009831U CN215069284U CN 215069284 U CN215069284 U CN 215069284U CN 202120009831 U CN202120009831 U CN 202120009831U CN 215069284 U CN215069284 U CN 215069284U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
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Abstract
The utility model discloses a bypass flow device is prevented in export of reactor core analog body, include: the wall surface of the hanging basket cylinder body is provided with a circular groove around the water outlet pipe, and a bypass flow preventing gasket is arranged in the circular groove; and the pressure-bearing shell is provided with an outlet connecting pipe arranged on the water outlet pipe, and an outlet sleeve is fixedly arranged on the end surface of the outlet connecting pipe, which is far away from the hanging basket. Compared with the prior art, the utility model discloses the side current device is prevented in reactor core analogue body export can prevent the production of this place side current through the export sleeve and prevent the cooperation between the side current gasket, adopts mechanical structure's the mutually supporting, allows the stress release of hanging flower basket, and the reliability is high and the equipment of being convenient for is dismantled.
Description
Technical Field
The utility model belongs to the technical field of the nuclear power, more specifically say, the utility model relates to a bypass flow device is prevented in export of reactor core analog body.
Background
In the development of reactor thermal hydraulic experiment research, particularly in an integral effect experiment device and a fuel assembly thermal hydraulic experiment device, a reactor core simulator is a heat source of the experiment device. In the reactor prototype, the end face between the hanging basket and the outlet connecting pipe is machined with high precision to reduce the side flow, and a corresponding structure is required to be arranged in the reactor core simulator of the testing device to prevent the side flow at the outlet.
The Chinese patent application CN 201510460322.9 discloses a reactor core simulator for integral effect thermal hydraulic test, which comprises a hanging basket and an outlet connecting pipe, wherein the hanging basket and the outlet connecting pipe are matched to prevent bypass flow. However, CN 201510460322.9 does not disclose a description about the fitting between the outlet nozzle and the basket, which schematically illustrates the outlet nozzle inserted into the basket to prevent bypass flow, and has high requirement on the precision of the fitting between the outlet nozzle and the basket and is inconvenient for installation; furthermore, a displacement of the basket along the axis due to temperature effects will affect the fit between the outlet nozzle and the basket, even resulting in a deformation of the outlet nozzle.
The chinese patent application CN201611052037.4 discloses a reactor simulator, which comprises a middle cylinder and an outlet connection pipe, wherein the middle cylinder and the outlet connection pipe are matched to prevent bypass flow. However, CN201611052037.4 has the following drawbacks: stress concentration occurs between the hanging basket and the outlet connecting pipe due to the temperature effect; the outlet connecting pipe and the middle section cylinder are not convenient to disassemble and assemble after being welded, and the middle section cylinder is limited in space and is not convenient for welding the middle section cylinder and the outlet connecting pipe.
In view of the above, it is necessary to provide an outlet bypass-flow-preventing structure of a reactor core simulator, which is convenient to disassemble and can reduce stress concentration.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a: the defects of the prior art are overcome, and the bypass flow preventing structure for the outlet of the reactor core simulator, which is convenient to disassemble and can reduce stress concentration, is provided.
In order to achieve the above object, the present invention provides a core simulator outlet bypass flow preventing device, which comprises:
the wall surface of the hanging basket cylinder body is provided with a circular groove around the water outlet pipe, and a bypass flow preventing gasket is arranged in the circular groove; and
the pressure-bearing shell is provided with an outlet connecting pipe arranged on the water outlet pipe, and an outlet sleeve is fixedly arranged on the end face, far away from the hanging basket, of the outlet connecting pipe.
As an improvement of the utility model, the round groove is coaxial with the outlet connecting pipe.
As an improvement of the utility model, the outlet of the reactor core simulator is provided with a side-flow prevention device, and the side-flow prevention gasket is an asbestos pad or a rubber plate.
As the utility model discloses the improvement of bypass flow device is prevented in reactor core analogue body export, the inner aperture of preventing the bypass flow gasket should slightly be greater than the circular slot diameter.
As an improvement of the utility model discloses bypass flow device is prevented in reactor core analogue body export, the export sleeve is "T style of calligraphy".
As the utility model discloses the improvement of bypass flow device is prevented in reactor core analogue body export, be equipped with outlet flange on the export is taken over, the last bolt hole that is equipped with of outlet flange, it has corresponding bolt hole and bolt groove to open on the export sleeve, fixes outlet sleeve, compresses tightly gasket and outlet flange through the bolt.
As the utility model discloses the side current device is prevented in reactor core analogue body export improvement, the bolt compresses tightly the back and is not higher than the telescopic terminal surface of export, and the telescopic terminal surface of export is not higher than the terminal surface of export flange.
As an improvement of the utility model discloses bypass flow device is prevented in reactor core analogue body export, export sleeve and bolt are made by stainless steel material.
As an improvement of the utility model, the outlet of the reactor core simulator is provided with the bypass flow prevention device, and the pressing gasket is an asbestos pad or a rubber plate.
As the utility model discloses the core simulates body export and prevents the improvement of bypass flow device, hanging flower basket barrel wall is equipped with the arch with the corresponding position of export takeover, the circular slot is seted up in the arch.
Compared with the prior art, the utility model discloses the side current device is prevented in reactor core analogue body export can prevent the production of this place side current through the export sleeve and prevent the cooperation between the side current gasket, adopts mechanical structure's the mutually supporting, allows the stress release of hanging flower basket, and the reliability is high and the equipment of being convenient for is dismantled.
Drawings
The following description of the device for preventing bypass flow at the outlet of the reactor core simulator and the technical effects thereof are provided in detail with reference to the accompanying drawings and the specific embodiments, wherein:
FIG. 1 is a schematic diagram of a core simulator.
Fig. 2 is a schematic structural diagram of an embodiment of the bypass flow preventing device for the core simulator outlet according to the present invention.
In the figure:
100-hanging basket; 110-circular groove; 120-anti-bypass flow gasket; 200-outlet connection pipe; 210-an outlet flange; 300-an outlet sleeve; 310-a bolt; 320-pressing the gasket.
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 accompanying drawings and specific 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 and 2, the present invention provides a core simulator outlet bypass flow preventing device, which includes:
the hanging basket comprises a hanging basket body 100, wherein a water outlet pipe extends from the wall surface of the hanging basket body, a circular groove 110 is formed in the wall surface of the hanging basket body around the water outlet pipe, and a bypass flow preventing gasket 120 is arranged in the circular groove 110; and
the pressure-bearing shell is provided with an outlet connecting pipe 200 arranged on the water outlet pipe, and an outlet sleeve 300 is fixedly arranged on the end surface of the outlet connecting pipe 200 far away from the hanging basket 10.
In the illustrated embodiment, the circular groove 110 is coaxial with the outlet nipple 200 on the pressure housing. The round groove 110 is provided with the side-flow preventing gasket 120, and the round groove 110 is configured to prevent the side-flow preventing gasket 120 from falling off, thereby facilitating the lifting of the basket 100. The side-flow prevention gasket 120 is made of a high temperature resistant material, for example, the side-flow prevention gasket 120 is an asbestos pad or a rubber sheet. The inner hole diameter of the anti-bypass flow gasket 120 should be slightly larger than the diameter of the circular groove 110, so as to ensure that the deformation of the anti-bypass flow gasket 120 under the extrusion force of the outlet sleeve 300 does not affect the flow field in the outlet adapter 200, and reduce the scouring of the fluid on the anti-bypass flow gasket 120.
Referring to fig. 2, according to a preferred embodiment of the apparatus for preventing bypass flow at the outlet of the core simulator of the present invention, a protrusion 140 is disposed on the wall surface of the barrel of the nacelle 100 corresponding to the outlet connection pipe 200, and a circular groove 110 is disposed on the protrusion 140.
The outlet flange 210 is generally disposed on the outlet connection pipe 200 of the core simulator to facilitate the development of experimental research, and the outlet sleeve 300 is in a "T-shaped" structure. The outlet flange 210 is provided with bolt holes, the outlet sleeve 300 is provided with corresponding bolt holes and bolt grooves, and the outlet sleeve 300, the pressing gasket 320 and the outlet flange 210 are fixed and sealed through bolts 310. The bolt is not higher than the end face of the outlet sleeve 300 after being compressed, and the end face of the outlet sleeve 300 is not higher than the end face of the outlet flange.
According to the utility model discloses an embodiment of bypass flow device is prevented in reactor core analogue outlet, export sleeve 300 and bolt 310 are made by stainless steel material, and the quantity of bolt 310 should not be less than 2, compresses tightly gasket 320 and is made by high temperature resistant material, for example, compresses tightly gasket 320 and be asbestos pad or rubber slab.
It can be seen from the above detailed description of the embodiments of the present invention that, compared with the prior art, the present invention prevents the bypass flow device from preventing the bypass flow through the outlet sleeve 300 and the cooperation between the bypass flow preventing gasket 120, allows the axial displacement of the hanging basket 100, adopts the mutual cooperation of the mechanical structure, allows the stress release of the hanging basket, and has high reliability and convenient for the disassembly of the equipment.
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 (10)
1. The utility model provides a core analogue body export anti-bypass flow device which characterized in that includes:
the wall surface of the hanging basket cylinder body is provided with a circular groove around the water outlet pipe, and a bypass flow preventing gasket is arranged in the circular groove; and
the pressure-bearing shell is provided with an outlet connecting pipe arranged on the water outlet pipe, and an outlet sleeve is fixedly arranged on the end face, far away from the hanging basket, of the outlet connecting pipe.
2. The core simulator outlet bypass flow prevention device of claim 1, wherein the circular groove is coaxial with the outlet connection pipe.
3. The core simulator outlet bypass flow prevention device of claim 1, wherein the bypass flow prevention gasket is an asbestos pad or a rubber plate.
4. The core simulator outlet bypass flow prevention device of claim 1, wherein the inner hole diameter of the bypass flow prevention spacer is slightly larger than the diameter of the circular groove.
5. The core simulator outlet bypass flow prevention device of claim 1, wherein the outlet sleeve is "T-shaped".
6. The core simulator outlet bypass flow prevention device according to claim 1, wherein the outlet connection pipe is provided with an outlet flange, the outlet flange is provided with bolt holes, the outlet sleeve is provided with corresponding bolt holes and bolt grooves, and the outlet sleeve, the hold-down gasket and the outlet flange are fixed through bolts.
7. The core simulator outlet bypass flow prevention device of claim 6, wherein the bolt is not higher than the end surface of the outlet sleeve after being pressed, and the end surface of the outlet sleeve is not higher than the end surface of the outlet flange.
8. The core simulator outlet bypass flow prevention device of claim 6, wherein the outlet sleeve and the bolt are made of stainless steel material.
9. The core simulator outlet bypass flow prevention device of claim 6, wherein the hold-down shim is an asbestos pad or a rubber plate.
10. The core simulator outlet bypass flow prevention device according to claim 1, wherein a protrusion is provided on the wall surface of the nacelle barrel at a position corresponding to the outlet connection pipe, and the circular groove is provided on the protrusion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120009831.0U CN215069284U (en) | 2021-01-04 | 2021-01-04 | Bypass flow prevention device for reactor core simulator outlet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120009831.0U CN215069284U (en) | 2021-01-04 | 2021-01-04 | Bypass flow prevention device for reactor core simulator outlet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215069284U true CN215069284U (en) | 2021-12-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120009831.0U Active CN215069284U (en) | 2021-01-04 | 2021-01-04 | Bypass flow prevention device for reactor core simulator outlet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215069284U (en) |
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2021
- 2021-01-04 CN CN202120009831.0U patent/CN215069284U/en active Active
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