CN211738211U - Vacuum isolation valve assembly with double-layer containing structure - Google Patents
Vacuum isolation valve assembly with double-layer containing structure Download PDFInfo
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- CN211738211U CN211738211U CN201922154103.4U CN201922154103U CN211738211U CN 211738211 U CN211738211 U CN 211738211U CN 201922154103 U CN201922154103 U CN 201922154103U CN 211738211 U CN211738211 U CN 211738211U
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- pipe fitting
- vacuum
- angle valve
- manual angle
- fuel
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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
- Y02E30/10—Nuclear fusion reactors
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Abstract
The invention discloses a vacuum isolation valve component with a double-layer containing structure, which comprises a vacuum dynamic seal, a secondary containing structure component, a fuel inlet extending pipe, a fuel outlet extending pipe, a second manual angle valve and an interlayer bypass corrugated connecting component, wherein two ends of the secondary containing structure component are respectively connected with the vacuum dynamic seal and the fuel outlet extending pipe, the side end of the secondary containing structure component is respectively connected with the fuel inlet extending pipe and the second manual angle valve, and the fuel inlet extending pipe and the second manual angle valve are connected through the interlayer bypass corrugated connecting component. The beneficial effects are that: the device is mainly suitable for a gas fuel injection system of a thermonuclear fusion experimental reactor device, can not only perform partition control on an internal fuel pipeline, but also perform partition control on a sandwich space of a double-layer containing pipe.
Description
Technical Field
The invention belongs to the field of fuel injection systems of a thermonuclear fusion experimental reactor device, and particularly relates to a high-vacuum all-metal isolation valve assembly which is suitable for a concentric double-layer containing pipe and can respectively carry out vacuum isolation control on a primary containing pipeline (fuel pipe) and a double-layer containing pipe interlayer space of the concentric double-layer containing pipe.
Background
In a thermonuclear fusion experimental reactor installation, fuel gas such as deuterium-tritium required for fusion is typically provided by a tritium plant and delivered to the vacuum chamber of the thermonuclear fusion experimental reactor via a fuel injection system to provide establishment, maintenance and control of the combustion plasma. In order to prevent the fuel gas from leaking and damaging personnel and environment, the injection pipe of the fuel gas usually adopts a concentric double-layer containing pipe structure, the inner pipe is used as a fuel delivery pipe, and the outer pipe is used as a secondary containing pipe. Therefore, even if the fuel pipe leaks, the fuel gas is restrained in the containing pipe and cannot be directly leaked to the external environment to cause damage. Meanwhile, the fuel gas leaked to the interlayer space of the containing pipe can be monitored by the leakage detecting system, so that the reaction is quickly made, and the safe operation of the system is ensured. The isolation valve applied to the concentric double-layer containing pipe also needs to consider the requirement of safe operation of the system besides meeting the requirements of high vacuum, metal sealing and the like, namely leakage caused by failure of a valve body for controlling fuel isolation must be monitored and cannot be directly leaked to the external environment. The invention provides a possibility for the application, and the valve is a high-vacuum all-metal isolating valve component with a double-layer containing structure required by the safe operation of a system. When the fuel injection pipe is used, the flange structure is connected with the concentric double-layer containing pipe of the fuel injection pipe, so that the function and the requirement of respectively carrying out partition/isolation control on the fuel pipe in the concentric double-layer containing pipe and the interlayer space of the double-layer containing pipe can be realized.
Disclosure of Invention
The invention aims to provide a vacuum isolation valve component with a double-layer containing structure, which can respectively carry out vacuum isolation control on a primary containing pipeline (a fuel pipe) of a concentric double-layer containing pipe and an interlayer space of the double-layer containing pipe.
The technical scheme of the invention is as follows: a vacuum isolation valve component with a double-layer containing structure comprises a vacuum dynamic seal, a secondary containing structure component, a fuel inlet extending pipe, a fuel outlet extending pipe, a second manual angle valve and an interlayer bypass corrugated connecting component, wherein two ends of the secondary containing structure component are respectively connected with the vacuum dynamic seal and the fuel outlet extending pipe, the side end of the secondary containing structure component is respectively connected with the fuel inlet extending pipe and the second manual angle valve, and the fuel inlet extending pipe and the second manual angle valve are connected through the interlayer bypass corrugated connecting component.
The fuel inlet extending pipe fitting, the first manual angle valve and the fuel outlet extending pipe fitting form a primary containing pipeline.
One end of the first manual angle valve is connected with the fuel outlet extending pipe fitting, a fifth metal sealing ring is installed between one end of the first manual angle valve and the fuel outlet extending pipe fitting, and an outlet containing pipe fitting is sleeved outside the fuel outlet extending pipe fitting.
The first manual angle valve is externally covered with an outer casing A and an outer casing B, the outer casing A is connected with a CF vacuum flange, the CF vacuum flange is connected with a second manual angle valve, and a first metal sealing ring is arranged between the CF vacuum flange and the second manual angle valve.
The side end of the first manual angle valve is connected with the fuel inlet extending pipe fitting, a third metal sealing ring is arranged between the side end of the first manual angle valve and the fuel inlet extending pipe fitting, an inlet containing pipe fitting A is sleeved on the fuel inlet extending pipe fitting, and the fuel inlet extending pipe fitting is connected with the inlet containing pipe fitting B.
The vacuum dynamic seal and shaft connector containing pipe fitting, the outer casing A, the outer casing B, the inlet containing pipe fitting A, the inlet containing pipe fitting B, the first manual angle valve, the interlayer bypass corrugated connecting assembly and the outlet containing pipe fitting form a secondary containing layer.
The vacuum dynamic seal is connected with a shaft connector, the vacuum dynamic seal is connected with a shaft connector containing pipe fitting, a second metal sealing ring is arranged between the vacuum dynamic seal and the shaft connector containing pipe fitting, the shaft connector penetrates through the shaft connector containing pipe fitting to be connected with a first manual angle valve, an inlet containing pipe fitting B is connected with a second CF vacuum flange, a fourth metal sealing ring is arranged between the inlet containing pipe fitting B and the second CF vacuum flange, the second CF vacuum flange is connected with a corrugated pipe section, the corrugated pipe section is connected with a bent pipe section, the bent pipe section is connected with a first CF vacuum flange, the first CF vacuum flange is connected with the side end of the second manual angle valve, and the first metal sealing ring is arranged between the first CF vacuum flange and the second manual angle valve.
The invention has the beneficial effects that: the device is mainly suitable for a gas fuel injection system of a thermonuclear fusion experimental reactor device, can not only perform partition control on an internal fuel pipeline, but also perform partition control on a sandwich space of a double-layer containing pipe. The component structure can meet the safety requirements of fuel pipe turn-off control and double-layer protection, and also can meet the application requirements of carrying out partition control on interlayer space in system leakage detection and leakage point positioning.
Drawings
FIG. 1 is an isometric view of a vacuum isolation valve assembly with a double containment structure according to the present invention;
fig. 2 is an exploded view of a vacuum isolation valve assembly with a double-layer containing structure according to the present invention.
In the figure, 1 a first manual angle valve, 2 vacuum dynamic seals, 3 shaft connectors, 4 secondary containment structure components, 41 shaft connector containment pipe pieces, 421 an outer casing a, 422 a CF vacuum flange, 43 an outer casing B, 44 an inlet containment pipe piece a, 452 an inlet containment pipe component B, 451 an inlet containment pipe piece B, 452 a CF vacuum flange, 46 an outlet containment pipe piece, 5 a fuel inlet extension pipe piece, 6 a fuel outlet extension pipe piece, 7 a second manual angle valve, 8 a sandwich bypass corrugated connection component, 81 a first CF vacuum flange, 82 a bent pipe segment, 83 a corrugated pipe segment, 84 a second CF vacuum flange, 91 a first metal seal ring, 92 a second metal seal ring, 93 a third metal seal ring, 94 a fourth metal seal ring, and 95 a fifth metal seal ring.
Detailed Description
The invention is described in further detail below with reference to the figures and the embodiments.
As shown in fig. 1, a vacuum isolation valve assembly with a double-layer containing structure, which can respectively perform vacuum isolation control on a primary containing pipeline (fuel pipe) and a double-layer containing pipe interlayer space of a concentric double-layer containing pipe, specifically comprises a vacuum dynamic seal 2, a secondary containing structure assembly 4, a fuel inlet extending pipe 5, a fuel outlet extending pipe 6, a second dynamic angle valve 7 and an interlayer bypass corrugated connection assembly 8, wherein two ends of the secondary containing structure assembly 4 are respectively connected with the vacuum dynamic seal 2 and the fuel outlet extending pipe 6, the side end of the secondary containing structure assembly 4 is respectively connected with the fuel inlet extending pipe 5 and the second dynamic angle valve 7, and the fuel inlet extending pipe 5 and the second dynamic angle valve 7 are connected through the interlayer bypass corrugated connection assembly 8.
Wherein the fuel inlet extension pipe 5, the first manual angle valve 1 and the fuel outlet extension pipe 6 constitute a primary containment (fuel) pipeline. One end of the first manual angle valve 1 is connected with the fuel outlet extending pipe fitting 6, a fifth metal sealing ring 95 is arranged between one end of the first manual angle valve 1 and the fuel outlet extending pipe fitting 6, an outlet containing pipe fitting 46 is sleeved outside the fuel outlet extending pipe fitting 6,
an outer casing A421 and an outer casing B43 are covered outside the first manual angle valve 1, the outer casing A421 is connected with a CF vacuum flange 422, the CF vacuum flange 422 is connected with the second manual angle valve 7, and a first metal sealing ring 91 is arranged between the CF vacuum flange 422 and the second manual angle valve 7;
the side end of the first manual angle valve 1 is connected with the fuel inlet extension pipe fitting 5, a third metal sealing ring 93 is arranged between the side end of the first manual angle valve 1 and the fuel inlet extension pipe fitting 5, an inlet containing pipe fitting A44 is sleeved on the fuel inlet extension pipe fitting 5, and the fuel inlet extension pipe fitting 5 is connected with an inlet containing pipe fitting B451;
the vacuum dynamic seal 2, the shaft connector containing pipe fitting 41, the outer casing A421, the outer casing B43, the inlet containing pipe fitting A44, the inlet containing pipe fitting B452, the first manual angle valve 1, the interlayer bypass corrugated connecting assembly 8 and the outlet containing pipe fitting 46 form a secondary containing layer. The vacuum dynamic seal 2 is connected with a shaft connector 3, the vacuum dynamic seal 2 is connected with a shaft connector containing pipe 41, a second metal sealing ring 92 is arranged between the vacuum dynamic seal 2 and the shaft connector containing pipe 41, the shaft connector 3 penetrates through the shaft connector containing pipe 41 to be connected with the first manual angle valve 1, an inlet containing pipe B452 is connected with a second CF vacuum flange 84, a fourth metal sealing ring 94 is arranged between the inlet containing pipe B452 and the second CF vacuum flange 84, the second CF vacuum flange 84 is connected with a corrugated pipe section 83, the corrugated pipe section 83 is connected with a bent pipe section 82, the bent pipe section 82 is connected with a first CF vacuum flange 81, the first CF vacuum flange 81 is connected with the side end of the second manual angle valve 7, and a first metal sealing ring 91 is arranged between the first CF vacuum flange 81 and the second manual angle valve 7.
The fuel inlet extending pipe fitting, the inlet containing pipe fitting A and the inlet containing pipe fitting B are assembled and welded to form a vacuum partition of an interlayer space. The axial rotary type vacuum dynamic seal is connected with the hexagonal head executing mechanism of the all-metal manual angle valve in the secondary containing space through the shaft connector, the operation and control of the all-metal manual angle valve of the primary containing (fuel) pipeline are realized by utilizing the hexagonal head executing mechanism of the vacuum dynamic seal to control the hexagonal head executing mechanism of the angle valve in an axial rotating mode, and meanwhile, the vacuum sealing condition of the secondary containing structure meeting the safe operation is guaranteed. And the communication and the separation control of the secondary containing space are realized by utilizing an interlayer space vacuum separation structure, a high-vacuum all-metal isolation angle valve and an interlayer bypass corrugated connecting assembly. The components and parts are connected through welding or metal sealing to meet the requirements of high vacuum and safe operation of fuel, and the interfaces adopt concentric double-flange metal sealing structures to realize safe and reliable connection with the concentric double-layer containing pipes of the fuel injection line.
The assembly manufacturing process of the invention is as follows:
the outer envelope A421 is welded to the CF vacuum flange 422 to form an outer envelope assembly A4.
The inlet containment tube assembly B451 is welded to the CF vacuum flange 452 to form the inlet containment tube assembly B.
The bent pipe section 82, the corrugated pipe section 83 and the CF vacuum flange are welded into a sandwich bypass corrugated connecting assembly 8, and the axial rotating vacuum dynamic seal 2 and the shaft connector 3 are assembled and fastened or welded into a whole by pins.
The CF flange of the sleeve connector, the second metal seal ring 92, and the CF flange of the axial rotary vacuum dynamic seal 2 are fastened by bolts.
The shaft connector 3 is assembled and fixed with the hexagonal head manual actuator of the first manual angle valve 1.
The CF flanges of the fuel inlet extension pipe fitting 5 and the fuel outlet extension pipe fitting 6, the metal sealing ring and the CF flanges of the inlet and the outlet of the first manual angle valve 1 are respectively fastened by bolts.
And (3) assembling the outer shell assembly A42, the outer shell B43, the inlet containing pipe fitting A44 and the outlet containing pipe fitting 46 with the shaft connector containing pipe fitting 41, and then fixing the assembled pipes by spot welding. The inlet containment tube member a44 is then spot welded to the fuel inlet extension tube member 5.
The welding shaft connector containing pipe fitting 41, the outer casing assembly A42, the outer casing B43, the inlet containing pipe fitting A44 and the outlet containing pipe fitting 46 form a secondary containing main body structure of the fuel isolating valve.
The welding inlet containment tube member a44 forms a physical partition of the secondary containment space with the fuel inlet extension tube member 5.
The inlet containing pipe component B45 is sleeved into the fuel inlet extension pipe 5, and after assembly, the inlet containing pipe component B45 and the fuel inlet extension pipe 5 are welded to form secondary containing of the fuel inlet pipe.
The outlet CF flange of the second manual angle valve 7, the metal seal ring, and the CF vacuum flange 422 of the outer envelope a-module 42 are fastened with bolts.
The inlet CF flange of the second manual angle valve 7, the metal seal ring, and the CF vacuum flange 81 of the sandwich bypass bellows joint assembly 8 are bolted together.
The first CF vacuum flange 84 of the sandwich bypass bellows assembly 8, the metal seal ring, and the CF vacuum flange 452 of the inlet containing tube assembly B45 are bolted together.
In the specific implementation process, the following points need to be noted:
the machining tolerances of the sub-components of the secondary containment assembly 4 and the fuel inlet extension pipe 5 are controlled.
Necessary tools are needed for welding among the sub-components of the secondary containing assembly 4 and between the sub-components and the fuel inlet extension pipe 5, the welding process needs to be evaluated in advance, and detection is carried out after welding so as to guarantee the welding quality.
The primary fuel containing pipeline is required to be subjected to leak detection test in advance before being assembled with each sub-component of the secondary fuel containing assembly, and is subjected to pre-connection and test with the axial rotating vacuum dynamic seal 2 and the shaft connector 3.
During assembly and welding, the flange knife edge needs to be protected.
After the secondary containing component 4 is welded, before the interlayer bypass corrugated connecting component 8 is installed, the leakage rate of the whole secondary containing component needs to be tested to check whether the welding quality meets the requirement of vacuum leakage rate.
Claims (7)
1. A vacuum isolation valve assembly having a double containment structure, comprising: it includes vacuum dynamic seal (2), secondary contains structural component (4), fuel inlet extends pipe fitting (5), fuel outlet extends pipe fitting (6), manual angle valve (7) of second and intermediate layer bypass ripple coupling assembling (8), vacuum dynamic seal (2) and fuel outlet extend pipe fitting (6) are connected respectively to the both ends of secondary contains structural component (4), the side of secondary contains structural component (4) extends pipe fitting (5) and the manual angle valve (7) of second with fuel inlet respectively and is connected, fuel inlet extends between pipe fitting (5) and the manual angle valve (7) of second and connects through intermediate layer bypass ripple coupling assembling (8).
2. A vacuum isolation valve assembly having a double containment structure as claimed in claim 1, wherein: the fuel inlet extending pipe fitting (5), the first manual angle valve (1) and the fuel outlet extending pipe fitting (6) form a primary containing pipeline.
3. A vacuum isolation valve assembly having a double containment structure as claimed in claim 2, wherein: one end and the fuel outlet of first manual angle valve (1) extend pipe fitting (6) and be connected, the one end and the fuel outlet of first manual angle valve (1) extend and install fifth metal sealing washer (95) between pipe fitting (6), fuel outlet extends pipe fitting (6) overcoat and has export to contain pipe fitting (46).
4. A vacuum isolation valve assembly having a double containment structure as claimed in claim 2, wherein: the first manual angle valve (1) is externally covered by an outer casing A (421) and an outer casing B (43), the outer casing A (421) is connected with a CF vacuum flange (422), the CF vacuum flange (422) is connected with a second manual angle valve (7), and a first metal sealing ring (91) is installed between the CF vacuum flange (422) and the second manual angle valve (7).
5. A vacuum isolation valve assembly having a double containment structure as claimed in claim 2, wherein: the side end of the first manual angle valve (1) is connected with the fuel inlet extending pipe fitting (5), a third metal sealing ring (93) is arranged between the side end of the first manual angle valve (1) and the fuel inlet extending pipe fitting (5), the fuel inlet extending pipe fitting (5) is sleeved with an inlet containing pipe fitting A (44), and the fuel inlet extending pipe fitting (5) is connected with an inlet containing pipe fitting B (451).
6. A vacuum isolation valve assembly having a double containment structure as claimed in claim 1, wherein: the vacuum dynamic seal (2), the shaft connector containing pipe fitting (41), the outer casing A (421), the outer casing B (43), the inlet containing pipe fitting A (44), the inlet containing pipe fitting B (451), the first manual angle valve (1), the interlayer bypass corrugated connecting assembly (8) and the outlet containing pipe fitting (46) form a secondary containing layer.
7. A vacuum isolation valve assembly having a double containment structure as claimed in claim 6, wherein: the vacuum dynamic seal (2) is connected with a shaft connector (3), the vacuum dynamic seal (2) is connected with a shaft connector containing pipe fitting (41), a second metal sealing ring (92) is arranged between the vacuum dynamic seal (2) and the shaft connector containing pipe fitting (41), the shaft connector (3) penetrates through the shaft connector containing pipe fitting (41) to be connected with a first manual angle valve (1), an inlet containing pipe fitting B (451) is connected with a second CF vacuum flange (84), a fourth metal sealing ring (94) is arranged between the inlet containing pipe fitting B (451) and the second CF vacuum flange (84), the second CF vacuum flange (84) is connected with a corrugated pipe section (83), the corrugated pipe section (83) is connected with a bent pipe section (82), the bent pipe section (82) is connected with a first CF vacuum flange (81), the first CF vacuum flange (81) is connected with the side end of a second manual angle valve (7), a first metal sealing ring (91) is arranged between the first CF vacuum flange (81) and the second manual angle valve (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922154103.4U CN211738211U (en) | 2019-12-05 | 2019-12-05 | Vacuum isolation valve assembly with double-layer containing structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922154103.4U CN211738211U (en) | 2019-12-05 | 2019-12-05 | Vacuum isolation valve assembly with double-layer containing structure |
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| Publication Number | Publication Date |
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| CN211738211U true CN211738211U (en) | 2020-10-23 |
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| CN201922154103.4U Active CN211738211U (en) | 2019-12-05 | 2019-12-05 | Vacuum isolation valve assembly with double-layer containing structure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112923128A (en) * | 2019-12-05 | 2021-06-08 | 核工业西南物理研究院 | Vacuum isolation valve assembly with double-layer containing structure |
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- 2019-12-05 CN CN201922154103.4U patent/CN211738211U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112923128A (en) * | 2019-12-05 | 2021-06-08 | 核工业西南物理研究院 | Vacuum isolation valve assembly with double-layer containing structure |
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