Throttling connector applied to high-temperature gas cooled reactor steam generator

Abstract

The invention discloses a throttling joint applied to a high-temperature gas cooled reactor steam generator, which comprises a basic component, a basic assembly, a connecting assembly arranged on the basic assembly, and a butt joint assembly arranged on the connecting assembly, the fixing component comprises a locking assembly arranged on the butt joint assembly, a throttling assembly arranged on the basic assembly and an extrusion assembly arranged on the throttling assembly. According to the throttling connector applied to the steam generator of the high-temperature gas cooled reactor, the butt joint is inserted into the connector, the inclined rod can enter the inclined groove under the action of the inclined face, then the locking ring is loosened, the locking spring pushes the locking ring, the locking groove clamps the locking block, and connection can be completed; an extrusion groove can extrude a plate to enable an extrusion rod to push a moving plate, so that a limiting rod is separated from a limiting groove, and meanwhile, automatic calibration can be achieved under the action of a butt joint assembly.

Description

Technical Field

[0001] The invention relates to the technical field of throttling equipment, and in particular to a throttling joint used in a high temperature gas-cooled reactor steam generator. Background Art

[0002] The high temperature gas-cooled reactor is an advanced type of nuclear reactor. Its main feature is its high operating temperature, usually above 700°C, which is significantly different from the traditional water-cooled reactor. The high temperature gas-cooled reactor steam generator is a key nuclear energy equipment, mainly used to convert the heat energy generated by the high temperature gas-cooled reactor into steam, which in turn drives the steam turbine to generate electricity.

[0003] The instability of steam-liquid two-phase flow is an important factor causing damage to steam generators; among them, flow drift is one of the most common instabilities. For a system with multiple heat exchange tubes in parallel, if flow drift occurs in some pipes, it will cause a large difference in mass flow rate and temperature between the tubes, which will not only reduce the quality of the outlet steam, but also generate thermal stress at the tube sheet, seriously threatening the safety of the equipment; at present, the throttling devices on the market still have shortcomings. The existing throttling devices are usually fixed by welding or bolts. If the equipment is fixed by welding, it needs to be removed by cutting after damage, which is very troublesome. The throttling equipment fixed by bolts is greatly affected by space. When the space is narrow, auxiliary tools cannot enter the interior and installation and disassembly cannot be completed. This needs to be improved. Summary of the invention

[0004] The purpose of this section is to summarize some aspects of embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the specification abstract and the invention title of this application to avoid blurring the purpose of this section, the specification abstract and the invention title, and such simplifications or omissions cannot be used to limit the scope of the present invention.

[0005] In view of the fact that the existing throttling joints used in high-temperature gas-cooled reactor steam generators are fixed by welding and need to be removed by cutting after the equipment is damaged, which is very troublesome, and the throttling equipment fixed by bolts is greatly affected by space. When the space is narrow, auxiliary tools cannot enter the interior and installation and disassembly cannot be completed, the present invention is proposed.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions: a basic component, including a basic assembly, a connecting assembly arranged on the basic assembly, and a docking assembly arranged on the connecting assembly; a fixing component, including a locking assembly arranged on the docking assembly, a throttling assembly arranged on the basic assembly, and an extrusion assembly arranged on the throttling assembly; and a control component, including a limiting assembly arranged on the throttling assembly, a guiding assembly arranged on the limiting assembly, and a control assembly arranged on the extrusion assembly.

[0007] As a preferred solution of the throttling joint used in a high-temperature gas-cooled reactor steam generator according to the present invention, the basic component includes a connecting pipe, a butt joint arranged on the connecting pipe, a connecting head arranged on the butt joint, and an output pipe arranged on the connecting head.

[0008] As a preferred solution of the throttling joint of a high-temperature gas-cooled reactor steam generator described in the present invention, the connecting assembly includes a connecting ring arranged on the butt joint, and a butt ring arranged on the connecting head.

[0009] As a preferred solution of the throttling joint of a high-temperature gas-cooled reactor steam generator described in the present invention, the docking assembly includes an inclined groove arranged on the docking ring, an inclined rod arranged on the connecting ring, and an inclined surface arranged on the docking ring.

[0010] As a preferred solution of the throttling joint of a high-temperature gas-cooled reactor steam generator described in the present invention, the locking assembly includes a locking spring arranged on the connecting ring, a locking ring arranged on the locking spring, a locking groove arranged on the locking ring, and a locking block arranged on the connecting ring.

[0011] As a preferred solution of the throttling joint of the high-temperature gas-cooled reactor steam generator described in the present invention, the throttling assembly includes a fixed plate arranged inside the docking joint, a rotating plate arranged on the right side of the fixed plate corresponding to the docking joint, and a throttling groove arranged on the rotating plate and the fixed plate.

[0012] As a preferred solution of the throttling joint of a high-temperature gas-cooled reactor steam generator described in the present invention, the extrusion assembly includes an extrusion sheet arranged inside the connecting head, an extrusion groove arranged on the extrusion sheet, an extrusion plate arranged on the extrusion groove, an extrusion rod arranged on the extrusion plate, and an arc groove arranged on the rotating sheet.

[0013] As a preferred solution of the throttling joint of a high-temperature gas-cooled reactor steam generator described in the present invention, the limiting assembly includes a cavity arranged on the fixed plate and the rotating plate, a straight rod arranged inside the cavity, a movable plate arranged on the straight rod, and a limiting rod arranged on the movable plate.

[0014] As a preferred solution of the throttling joint of a high-temperature gas-cooled reactor steam generator described in the present invention, the guide assembly includes a fixing ring arranged inside the cavity, a limiting groove arranged on the fixing ring, and a guiding slope arranged on the inner wall of the limiting groove.

[0015] As a preferred solution of the throttling joint used in a high-temperature gas-cooled reactor steam generator of the present invention, the control component includes a control block arranged on the rotating plate, and a control groove arranged on the extrusion plate.

[0016] The beneficial effects of the present invention are as follows: by inserting the docking joint into the connecting head, the inclined rod will enter the interior of the inclined groove under the action of the inclined surface, and then the locking ring is loosened, so that the locking spring pushes the locking ring so that the locking groove clamps the locking block to complete the connection. During installation, the extrusion groove will squeeze the plate so that the extrusion rod pushes the moving plate, so that the limit rod is disengaged from the limit groove. At the same time, it will automatically calibrate under the action of the docking assembly, so that the control block will enter the interior of the control groove. After that, the rotation of the rotating plate can be controlled by rotating the connecting head, so that the throttling groove on the rotating plate and the throttling groove on the fixed plate can achieve the effect of overlapping and separating, thereby completing the interception effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative labor.

[0018] Figure 1 The present invention is a schematic diagram of the overall structure of a throttling joint of a high temperature gas-cooled reactor steam generator.

[0019] Figure 2 The present invention is a schematic diagram of the structure of a docking assembly applied to a throttling joint of a high-temperature gas-cooled reactor steam generator.

[0020] Figure 3 The present invention is a schematic diagram of the structure of an extrusion assembly applied to a throttling joint of a high temperature gas-cooled reactor steam generator.

[0021] Figure 4 The present invention is a schematic structural diagram of a throttling assembly applied to a throttling joint of a high temperature gas-cooled reactor steam generator.

[0022] Figure 5 The present invention is a schematic diagram of the structure of a limit assembly applied to a throttling joint of a high temperature gas-cooled reactor steam generator. DETAILED DESCRIPTION

[0023] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0024] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0025] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0026] Secondly, the present invention is described in detail with reference to the schematic diagram. When describing the embodiments of the present invention in detail, for the sake of convenience, the cross-sectional diagrams showing the device structure will not be partially enlarged according to the general scale, and the schematic diagrams are only examples, which should not limit the scope of protection of the present invention. In addition, in actual production, the three-dimensional dimensions of length, width and depth should be included.

[0027] Example 1, reference Figure 1 to Figure 5 , which is the first embodiment of the present invention, provides a throttling joint for a high-temperature gas-cooled reactor steam generator. The device includes a basic component 100, including a basic assembly 101, a connecting assembly 102 arranged on the basic assembly 101, and a docking assembly 103 arranged on the connecting assembly 102.

[0028] Among them, the basic component 101 is used to transport the internal vapor-liquid two-phase flow, and the connecting component 102 is used to connect two conveying pipes so that the vapor-liquid two-phase flow can flow smoothly; the docking component 103 is set to control the internal control component 303 to complete the docking, thereby facilitating the control of the interception component.

[0029] Furthermore, the fixing component 200 includes a locking component 201 disposed on the docking component 103 , a throttling component 202 disposed on the base component 101 , and an extrusion component 203 disposed on the throttling component 202 .

[0030] Among them, the locking component 201 is used to cooperate with the docking component 103 to lock the connecting component 102, so as to complete the installation of the equipment, the shut-off component is used to control the flow rate of the gas-liquid two-phase flow, so that the internal flow can be controlled, and the extrusion component 203 is set to extrude the internal limit component 301, so that the limit of the throttling component 202 is contacted.

[0031] Preferably, the delivery pipelines are connected together by the setting of the connecting component 102, and the internal control component 303 is combined together by the setting of the docking component 103, and finally the connecting component 102 is fixed together by the locking component 201 to complete the installation. During the installation, the extrusion component 203 will unlock the internal limit component 301 to achieve control of the throttling component 202.

[0032] Furthermore, the control component 300 includes a limiting component 301 disposed on the throttling component 202 , a guiding component 302 disposed on the limiting component 301 , and a control component 303 disposed on the extrusion component 203 .

[0033] Among them, the limit component 301 is used to control the throttling component 202. At the same time, when disassembling, the guide component 302 will control the throttling component 202 to close, preventing external impurities from entering the inner wall of the throttling component 202 and affecting the purity of the vapor-liquid two-phase flow. The control component 303 is set to control the rotation of the throttling component 202 when the limit component 301 is unlocked, so that the internal flow rate is controlled.

[0034] Preferably, the contact limit of the limiting component is controlled by setting the extrusion component 203, and the control component 303 is combined by setting the docking component 103, so as to control the throttling component 202 so that the flow rate of the vapor-liquid two-phase flow is controlled to prevent the flow from drifting; when disassembling, the throttling component 202 is closed by the cooperation of the guide component 302 and the limit component 301 to prevent external impurities from affecting the internal gas and liquid.

[0035] In summary: the delivery pipeline is connected through the connecting component 102, and the control component 303 is combined together by docking the pipeline during the connection, and the locking component 201 connects the two ends of the connector 101c together to complete the fixation and installation. At the same time, the setting of the extrusion component 203 will squeeze the limit component 301, so that the limit component 301 is unlocked, and then the flow inside the pipeline is controlled by the control component 303. During disassembly, the limit component 301 will squeeze the throttling component 202 to a closed state through the guide component 302 to prevent external impurities from contaminating the drainage component.

[0036] Example 2, reference Figure 1 to Figure 4, which is the second embodiment of the present invention, comprises: a basic component 101 comprises a connecting pipe 101a, a docking joint 101b arranged on the connecting pipe 101a, a connecting head 101c arranged on the docking joint 101b, and an output pipe 101d arranged on the connecting head 101c.

[0037] The connecting pipe 101a is used to connect the butt joint 101b, and the butt joint 101b is used to connect the connecting pipe 101a and the connector 101c together. The output pipe 101d is used to transport steam-liquid to the inside of the connecting pipe 101a, so that the entire pipeline is connected.

[0038] Furthermore, the connection assembly 102 includes a connection ring 102a disposed on the docking head 101b, and a docking ring 102b disposed on the connection head 101c.

[0039] Preferably, an inclined surface 103c is provided at the left end of the docking ring 102b, so that the inclined rod 103b on the docking assembly 103 moves to the rightmost side of the inclined surface 103c.

[0040] Furthermore, the docking assembly 103 includes an inclined groove 103a provided on the docking ring 102b, an inclined rod 103b provided on the connecting ring 102a, and an inclined surface 103c provided on the docking ring 102b.

[0041] Among them, the inclined rod 103b is used to cooperate with the inclined groove 103a to connect the connecting component 102. The inclined groove 103a is set on the far right of the inclined surface 103c. When connecting, the inclined rod 103b and the inclined surface 103c cooperate with each other and slide, thereby entering the interior of the inclined groove 103a to complete the docking of the equipment.

[0042] Furthermore, the locking assembly 201 includes a locking spring 201a disposed on the connecting ring 102a, a locking ring 201b disposed on the locking spring 201a, a locking groove 201c disposed on the locking ring 201b, and a locking block 201d disposed on the connecting ring 102a.

[0043] Among them, the locking spring 201a is used to push the locking ring 201b to move to the left, and the locking groove 201c is used to cooperate with the locking block 201d to complete the locking of the connecting ring 102a, so that the connecting ring 102a and the docking ring 102b are fixed, thereby completing the connection of the equipment.

[0044] Preferably, by inserting the connector 101c into the docking connector 101b so that the inclined rod 103b contacts the inclined surface 103c, and then continuing to push the connector 101c inward so that the inclined rod 103b enters the inclined groove 103a, and then loosening the locking ring 201b so that the locking spring 201a pushes the locking ring 201b, thereby causing the locking groove 201c to jam the locking block 201d, thereby completing the locking and fixation of the equipment.

[0045] Furthermore, the throttling assembly 202 includes a fixed sheet 202a disposed inside the docking joint 101b, a rotating sheet 202b disposed on the right side of the docking joint 101b corresponding to the fixed sheet 202a, and a throttling groove 202c disposed on the rotating sheet 202b and the fixed sheet 202a.

[0046] The fixed plate 202a is used to cooperate with the rotating ring to throttle the device, and the rotating plate 202b is used to control the overlapping area of ​​the two throttling grooves 202c, thereby controlling the flow rate of the internal vapor-liquid two-phase flow to achieve the throttling effect.

[0047] In summary: by inserting the connecting head 101c into the interior of the docking head 101b, the inclined rod 103b contacts the inclined surface 103c, and then continue to push the connecting head 101c inward, so that the inclined rod 103b enters the interior of the inclined groove 103a, and then loosen the locking ring 201b, so that the locking spring 201a pushes the locking ring 201b, so that the locking groove 201c is stuck with the locking block 201d, and the locking and fixing of the equipment is completed. When connecting, the extrusion groove 203b will push the limit assembly 301 to unlock, so that the control assembly 303 can control the rotation of the rotating piece 202b, so that the overlapping area of ​​the two throttling grooves 202c changes, thereby achieving the throttling effect, and at the same time, the locking assembly 201 achieves the effect of quick installation.

[0048] Example 3, reference Figure 3 to Figure 5 , which is the third embodiment of the present invention, includes: the extrusion assembly 203 includes an extrusion sheet 203a arranged inside the connecting head 101c, an extrusion groove 203b arranged on the extrusion sheet 203a, an extrusion plate 203c arranged on the extrusion groove 203b, an extrusion rod 203d arranged on the extrusion plate 203c, and an arc groove 203e arranged on the rotating sheet 202b.

[0049] Among them, the extrusion sheet 203a is set to push the extrusion plate 203c to move through the extrusion groove 203b. The extrusion plate 203c is set to drive the moving plate 301c to rotate together through the extrusion rod 203d. The arc groove 203e is set to limit the rotation range of the rotating plate, so that the rotating sheet 202b can only rotate within the moving range.

[0050] Preferably, when the connection is made, the extrusion groove 203b pushes the extrusion plate 203c to move, thereby pushing the moving plate 301c to move through the extrusion rod 203d, so that the limiting assembly 301 is unlocked, and the rotating plate can rotate normally.

[0051] Furthermore, the limiting assembly 301 includes a cavity 301a disposed on the fixed plate 202a and the rotating plate 202b, a straight rod 301b disposed inside the cavity 301a, a movable plate 301c disposed on the straight rod 301b, and a limiting rod 301d disposed on the movable plate 301c.

[0052] The cavity 301a is used to prevent parts, the straight rod 301b is used to limit the moving track of the moving plate 301c, and the moving plate 301c is used to drive the limiting rod 301d to enter the limiting groove 302b, so that the rotating piece 202b is restricted and cannot rotate.

[0053] Preferably, a spring is provided at the left end of the movable plate 301c for pushing the movable plate 301c to move rightward, thereby making the limiting rod 301d located inside the limiting groove 302b to lock the rotating piece 202b.

[0054] Furthermore, the guide assembly 302 includes a fixing ring 302a disposed inside the cavity 301a, a limiting groove 302b disposed on the fixing ring 302a, and a guiding inclined surface 302c disposed on the inner wall of the limiting groove 302b.

[0055] Among them, the setting of the limit groove 302b is used to cooperate with the limit rod 301d to lock the rotating piece 202b, and the setting of the guide slope 302c is used to push the moving plate 301c to move to the right by the spring when the extrusion groove 203b is separated from the extrusion plate 203c, so that the limit rod 301d drives the rotating piece 202b to rotate, and then the intercepting assembly is in a closed state.

[0056] Preferably, when the extrusion assembly 203 is disengaged, the spring pushes the moving plate 301c, so that the limiting rod 301d drives the rotating piece 202b to rotate through the guiding inclined surface 302c, thereby placing the throttling assembly 202 in a closed state.

[0057] Furthermore, the control assembly 303 includes a control block 303a disposed on the rotating piece 202b, and a control slot 303b disposed on the pressing piece 203a.

[0058] The control block 303a is used to control the rotation of the rotating piece 202b, and the control slot 303b is used to drive the control block 303a to rotate, so that the throttling assembly 202 operates.

[0059] In summary: by inserting the docking head 101b into the connecting head 101c, the inclined rod 103b will enter the interior of the inclined groove 103a under the action of the inclined surface 103c, and then the locking ring 201b is loosened, so that the locking spring 201a pushes the locking ring 201b so that the locking groove 201c clamps the locking block 201d to complete the connection. During installation, the extrusion groove 203b will squeeze the plate 203c so that the extrusion rod 203d pushes the movable plate 301c, so that the limit rod 301d disengages from the limit groove 302b. At the same time, it will automatically calibrate under the action of the docking assembly 103, so that the control block 303a will enter the interior of the control groove 303b, and then the rotation of the rotating piece 202b can be controlled by rotating the connecting head 101c, so that the throttling groove 202c on the rotating piece 202b and the throttling groove 202c on the fixed piece 202a can achieve the effect of overlapping and separation, thereby completing the interception effect.

[0060] The remaining structure is the same as that of Example 2.

[0061] Importantly, it should be noted that the construction and arrangement of the present application shown in a plurality of different exemplary embodiments are only exemplary. Although only a few embodiments are described in detail in this disclosure, it should be readily understood by those who refer to this disclosure that many modifications are possible (e.g., the size, scale, structure, shape and proportion of various elements, and parameter values ​​(e.g., temperature, pressure, etc.), installation arrangement, use of materials, color, directional changes, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in the application. For example, the element shown as integrally formed can be composed of multiple parts or elements, the position of the element can be inverted or otherwise changed, and the nature or number or position of the discrete element can be changed or changed. Therefore, all such modifications are intended to be included in the scope of the present invention. The order or sequence of any process or method steps can be changed or reordered according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure of performing the function described herein, and is not only structurally equivalent but also equivalent structure. Without departing from the scope of the present invention, other replacements, modifications, changes and omissions can be made in the design, operating conditions and arrangement of the exemplary embodiments. Therefore, the invention is not limited to a specific embodiment, but extends to numerous modifications still falling within the scope of the appended claims.

[0062] Additionally, in order to provide a concise description of exemplary embodiments, all features of an actual embodiment (ie, those features that are not relevant to the best mode presently contemplated for carrying out the invention or those that are not relevant to implementing the invention) may not be described.

[0063] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A throttling joint for a steam generator of a high temperature gas-cooled reactor, characterized in that: include, A basic component (100) comprises a basic assembly (101), a connecting assembly (102) arranged on the basic assembly (101), and a docking assembly (103) arranged on the connecting assembly (102); A fixing component (200) comprises a locking component (201) arranged on the docking component (103), a throttling component (202) arranged on the base component (101), and an extrusion component (203) arranged on the throttling component (202); and, The control component (300) comprises a limit component (301) arranged on the throttling component (202), a guide component (302) arranged on the limit component (301), and a control component (303) arranged on the extrusion component (203).

2. The throttling joint for a high temperature gas-cooled reactor steam generator according to claim 1, characterized in that: The basic component (101) comprises a connecting pipe (101a), a docking joint (101b) arranged on the connecting pipe (101a), a connecting head (101c) arranged on the docking joint (101b), and an output pipe (101d) arranged on the connecting head (101c).

3. The throttling joint for a high temperature gas-cooled reactor steam generator according to claim 2, characterized in that: The connection assembly (102) comprises a connection ring (102a) arranged on the docking head (101b), and a docking ring (102b) arranged on the connecting head (101c).

4. The throttling joint for a high temperature gas-cooled reactor steam generator according to claim 3 is characterized in that: The docking assembly (103) comprises an inclined groove (103a) arranged on the docking ring (102b), an inclined rod (103b) arranged on the connecting ring (102a), and an inclined surface (103c) arranged on the docking ring (102b).

5. The throttling joint for a high temperature gas-cooled reactor steam generator according to claim 4, characterized in that: The locking assembly (201) comprises a locking spring (201a) arranged on the connecting ring (102a), a locking ring (201b) arranged on the locking spring (201a), a locking groove (201c) arranged on the locking ring (201b), and a locking block (201d) arranged on the connecting ring (102a).

6. The throttling joint for a high temperature gas-cooled reactor steam generator according to claim 5, characterized in that: The throttling assembly (202) comprises a fixed sheet (202a) arranged inside the docking head (101b), a rotating sheet (202b) arranged on the right side of the docking head (101b) corresponding to the fixed sheet (202a), and a throttling groove (202c) arranged on the rotating sheet (202b) and the fixed sheet (202a).

7. The throttling joint for a high temperature gas-cooled reactor steam generator according to claim 6, characterized in that: The extrusion assembly (203) comprises an extrusion sheet (203a) arranged inside the connecting head (101c), an extrusion groove (203b) arranged on the extrusion sheet (203a), an extrusion plate (203c) arranged on the extrusion groove (203b), an extrusion rod (203d) arranged on the extrusion plate (203c), and an arc groove (203e) arranged on the rotating sheet (202b).

8. The throttling joint for a high temperature gas-cooled reactor steam generator according to claim 7, characterized in that: The limiting assembly (301) comprises a cavity (301a) arranged on the fixed plate (202a) and the rotating plate (202b), a straight rod (301b) arranged inside the cavity (301a), a movable plate (301c) arranged on the straight rod (301b), and a limiting rod (301d) arranged on the movable plate (301c).

9. The throttling joint for a high temperature gas-cooled reactor steam generator according to claim 8, characterized in that: The guide assembly (302) comprises a fixing ring (302a) arranged inside the cavity (301a), a limiting groove (302b) arranged on the fixing ring (302a), and a guiding inclined surface (302c) arranged on the inner wall of the limiting groove (302b).

10. The throttling joint for a high temperature gas-cooled reactor steam generator according to claim 9, characterized in that: The control assembly (303) comprises a control block (303a) arranged on the rotating plate (202b), and a control groove (303b) arranged on the extruding plate (203a).

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