Nuclear power high-temperature reactor evaporator complete set clean production device and working method thereof

Abstract

The invention provides a complete clean production device for a nuclear power high-temperature reactor evaporator and a working method of the complete clean production device, which can meet the requirements of high precision and high reliability of assembly of the high-temperature gas cooled reactor evaporator and improve the assembly efficiency and quality. The internal part supporting tool and the shell supporting tool are detachably arranged on the frame; the fixed base is arranged on the support frame; the transverse sliding seat is arranged on the fixed base; the transverse adjusting bolt is connected with the transverse sliding seat; the vertical adjusting plate is arranged on the transverse sliding seat; the vertical adjusting bolt is connected with the vertical adjusting plate; the pressing hoop is arranged on the vertical adjusting plate; the water supply pipe supporting tool is detachably arranged on the frame. The flange seat is arranged on the supporting seat; the wedge-shaped pad assembly is arranged between the flange seat and the supporting seat; the lower clamping sleeve is fixedly arranged in the positioning hole, the upper clamping sleeve is fixed on the flange seat, and the upper clamping sleeve and the lower clamping sleeve are overlapped together up and down; the internal part supporting tool, the water supply pipe supporting tool and the shell supporting tool are selectively arranged on the frame.

Description

Technical Field

[0001] The present invention relates to a complete set of clean production devices for nuclear power high-temperature reactor evaporators and a working method thereof, which are used for the clean production of steam generators of nuclear power high-temperature gas-cooled reactors. Background Art

[0002] With the increasing global demand for clean energy, nuclear energy, as a stable and efficient form of energy, has become increasingly important. The fourth-generation nuclear power technology (Generation IV) has become the focus of current nuclear power research and development due to its higher safety, economy, sustainability, and waste minimization. The high-temperature gas-cooled reactor (HTGR), as one of the representatives of the fourth-generation nuclear power technology, has many advantages. It uses helium as the coolant and graphite as the moderator, can operate efficiently at high temperatures, and has inherent safety. The evaporator of the high-temperature gas-cooled reactor, as one of its key components, is a very important nuclear power component. It plays an important role in nuclear power plants. In a nuclear reactor, nuclear reactions in fuel elements generate a large amount of heat energy, which needs to be dissipated through the coolant. The evaporator is a component that converts the heat energy in the coolant into steam, thereby generating electrical energy. Its principle is to transfer the heat energy in the coolant to the outside of the reactor through heat conduction, and transfer it to another working medium through a heat exchanger, and finally drive a steam turbine to generate electricity.

[0003] The clean production device for the high-temperature reactor evaporator is used for the clean production of processes such as the assembly, welding, heat treatment, flaw detection, and general assembly of the internal components of the high-temperature reactor steam generator. Chinese Patent with the application number 202211563530.8 discloses a modular construction and installation system and method for in-vessel components of a high-temperature gas-cooled reactor nuclear power plant. The system includes a pre-assembly workshop, a first crane, and a second crane; the pre-assembly workshop is arranged outside the nuclear island workshop, and its top is provided with an openable roof. Inside the pre-assembly workshop, there is an in-vessel component module assembly area aligned with the roof; the first crane can successively lift multiple cylinders moved into the pre-assembly workshop into the in-vessel component module assembly area to assemble into in-vessel component cylinders, and can successively lift multiple module components moved into the pre-assembly workshop into the in-vessel component cylinders to assemble into in-vessel component modules; the second crane is used to lift the in-vessel component modules into the reactor pressure vessel cylinder already installed in the reactor compartment for installation. Through this solution, the in-vessel component modules can be assembled in the pre-assembly workshop first, and after the reactor pressure vessel cylinder is installed, the in-vessel component modules can be lifted into it for installation.

[0004] The high-temperature reactor evaporator is one of the key equipment in the high-temperature reactor system. Its assembly accuracy and quality have an important impact on the performance of the entire reactor. Moreover, its structure is complex and its volume is large, with extremely high manufacturing accuracy requirements. As shown in the above existing patent technologies, the following problems exist in the traditional assembly method: (1) Insufficient assembly accuracy: It is difficult to ensure the concentricity between the evaporator components and the bench, affecting the operating performance of the equipment.

[0005] (2) Poor adjustment flexibility: Lack of an efficient leveling and positioning mechanism, resulting in low assembly efficiency. Summary of the Invention

[0006] The purpose of the present invention is to overcome the above-mentioned deficiencies existing in the prior art, and to provide a set of clean production devices and working methods for the nuclear power high-temperature reactor evaporator with reasonable design, which can meet the high-precision and high-reliability requirements for the assembly of the high-temperature gas-cooled reactor evaporator, and improve the assembly efficiency and quality.

[0007] The technical solution adopted by the present invention to solve the above problems is as follows: A complete set of clean production devices for nuclear power high-temperature reactor evaporators, including a lead room clean production chamber and a general assembly clean production chamber; assembly benches are provided in both the lead room clean production chamber and the general assembly clean production chamber, and the assembly bench includes a frame; the assembly bench further includes a centering and positioning mechanism, an internal component support tooling, a water supply pipe support tooling, and a shell support tooling; the centering and positioning mechanism includes a positioning wheel and a telescopic mechanism, the telescopic mechanism is arranged on the frame, and the positioning wheel is arranged on the telescopic mechanism; both the internal component support tooling and the shell support tooling are detachably arranged on the top of the frame; the internal component support tooling includes a support frame and a pipe orifice tooling; the support frame is detachably arranged on the top of the frame, and the pipe orifice tooling includes a fixed base, a horizontal sliding seat, a horizontal adjustment bolt, a vertical adjustment plate, a vertical adjustment bolt, and a compression hoop; the fixed base is fixedly arranged on the support frame; the horizontal sliding seat is horizontally movably arranged on the fixed base; the horizontal adjustment bolt is connected to the horizontal sliding seat; the vertical adjustment plate is vertically movably arranged on the horizontal sliding seat; the vertical adjustment bolt is connected to the vertical adjustment plate; the compression hoop is fixedly arranged on the vertical adjustment plate; the water supply pipe support tooling is detachably arranged at the bottom of the frame, and it includes a support seat and a water supply pipe tooling; the support seat is detachably arranged at the bottom of the frame, and the water supply pipe tooling includes a flange seat and an adjustment and clamping assembly, and the adjustment and clamping assembly includes a wedge pad assembly and a clamping sleeve assembly; the flange seat is arranged on the support seat, and the flange seat is provided with a positioning hole; the wedge pad assembly is arranged between the flange seat and the support seat, and it includes an upper wedge pad and a lower wedge pad stacked on top of each other; the clamping sleeve assembly includes an upper clamping sleeve and a lower clamping sleeve, the lower clamping sleeve is fixedly arranged in the positioning hole, the upper clamping sleeve is fixed on the flange seat, and after the upper clamping sleeve extends into the positioning hole, it is stacked on top of the lower clamping sleeve; the internal component support tooling, the water supply pipe support tooling, and the shell support tooling can be selectively arranged on the frame; when the assembly bench is used for the production of heat exchange internal components, the internal component support tooling and the water supply pipe support tooling are arranged on the frame, and the shell support tooling is not arranged; when the assembly bench is used for the production of the shell and the assembly of the heat exchange internal components and the shell, the shell support tooling is arranged on the frame, and the internal component support tooling and the water supply pipe support tooling are not arranged.

[0008] The internal component support tooling of the present invention further includes a horizontal fixing bolt and a vertical fixing bolt. The horizontal sliding seat is fixed on the fixed base through the horizontal fixing bolt, and the vertical adjustment plate is fixed on the horizontal sliding seat through the vertical fixing bolt.

[0009] The overlapping surface between the upper wedge pad and the lower wedge pad of the present invention is an inclined surface; the overlapping surface between the upper clamping sleeve and the lower clamping sleeve is an inclined surface.

[0010] A jack is arranged on the shell support tooling of the present invention.

[0011] The telescopic mechanism described in the present invention includes an electric push rod, a swing positioning bracket, a pull rod assembly, and a wheel bracket; the swing positioning bracket is fixedly arranged on the frame; the electric push rod and the pull rod assembly are both arranged on the swing positioning bracket, and the electric push rod is connected to the pull rod assembly; the wheel bracket is hingedly arranged on the pull rod assembly; the positioning wheel is arranged on the pull rod assembly.

[0012] In the lead house cleaning production room of the present invention, a production lead house is provided, and the assembly bench is arranged in the production lead house.

[0013] The roof and the gate of the production lead house of the present invention are integrated to form an L-shaped door. The L-shaped door includes an inner L-shaped lead door and an outer L-shaped partition door. The inner L-shaped lead door and the outer L-shaped partition door are arranged inside and outside, and both are arranged on the production lead house in a separate translational manner; a lead plate is laid on the inner L-shaped lead door.

[0014] The assembly bench described in the present invention further includes a working platform, and the working platform is fixedly arranged on the frame.

[0015] A plurality of adjustment and clamping assemblies described in the present invention are arranged in a ring; a plurality of centering and positioning mechanisms are arranged in a ring.

[0016] A working method of a complete set of cleaning production devices for a nuclear power high-temperature reactor evaporator includes the following steps: (1) When producing heat exchange internals in the lead house cleaning production room: Adjust the horizontal position of the horizontal sliding seat on the fixed base through the horizontal adjustment bolt, and adjust the vertical position of the vertical adjustment plate on the horizontal sliding seat through the vertical adjustment bolt, so as to adjust the vertical and horizontal positions of the pressure hoop, making the position of the pressure hoop match the position of the inlet pipe of the heat exchange internals; at the same time, adjust the height of the wedge pad assembly by adjusting the position between the upper wedge pad and the lower wedge pad, so as to adjust the height of the flange seat at the position where the wedge pad assembly is located, making the flange seat concentric with the water supply pipe at the bottom of the heat exchange internals; After the heat exchange internals are installed into the frame, the telescopic mechanism pushes the positioning wheel out, and the positioning wheel supports the outer edge of the heat exchange internals, making the heat exchange internals concentric with the assembly bench; the outlet pipe of the heat exchange internals is installed into the pressure hoop for fixation, the bottom of the heat exchange internals is supported on the flange seat, the water supply pipe of the heat exchange internals is installed into the lower clamping sleeve of the positioning hole, and then the upper clamping sleeve is installed, and the upper clamping sleeve presses the water supply pipe; Then, cleaning production can be carried out on the heat exchange internals; (2) When producing the shell in the lead house cleaning production room: After the shell is installed into the frame, the upper part of the shell is supported on the shell support tooling, the telescopic mechanism pushes the positioning wheel out, and the positioning wheel supports the outer edge of the shell, making the shell concentric with the assembly bench; then, cleaning production can be carried out on the shell.

[0017] (3)When performing final assembly production in the final assembly clean production room: After the outer shell produced in the lead house clean production room is installed into the frame of the final assembly clean production room, the telescopic mechanism pushes out the positioning wheels, and the positioning wheels support the outer edge of the outer shell, making the outer shell concentric with the assembly bench; then the heat exchange internal parts produced in the lead house clean production room are assembled into the outer shell.

[0018] Compared with the prior art, the present invention has the following advantages and effects: 1. In order to ensure the concentricity between the evaporator component and the assembly bench, a centering and positioning mechanism is provided. This mechanism supports the outer edge of the evaporator component during component production. After centering, the centering and positioning mechanism is fixed, making the component concentric with the assembly bench and improving the assembly accuracy.

[0019] 2. The assembly bench is equipped with an internal part support tooling, a water supply pipe support tooling, and an outer shell support tooling to support the various components of the evaporator, ensuring the stability and precise positioning of the components during the assembly process and improving the assembly efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic plan layout diagram of an embodiment of the present invention.

[0021] Figure 2 It is a schematic side view structure diagram of the lead house clean production room of an embodiment of the present invention.

[0022] Figure 3 It is a schematic structure diagram of the L-shaped door of an embodiment of the present invention.

[0023] Figure 4 It is a schematic structure diagram of the assembly bench for heat exchange internal part production of an embodiment of the present invention.

[0024] Figure 5 For Figure 4 side view structure diagram.

[0025] Figure 6 For Figure 4 schematic structure diagram in the A-A direction of

[0026] Figure 7 It is a schematic structure diagram of the assembly bench for outer shell production of an embodiment of the present invention.

[0027] Figure 8 For Figure 7 side view structure diagram.

[0028] Figure 9 For Figure 7 schematic structure diagram in the B-B direction of

[0029] Figure 10This is a schematic structural diagram of the assembly bench for the assembly of the heat exchange internal part and the outer shell in the embodiment of the present invention.

[0030] Figure 11 This is a schematic structural diagram of the centering and positioning mechanism in the embodiment of the present invention.

[0031] Figure 12 This is a schematic structural diagram of the swing feed water pipe support tooling in the embodiment of the present invention.

[0032] Figure 13 This is a schematic structural diagram of the water supply pipe tooling in the embodiment of the present invention.

[0033] Figure 14 It is Figure 13 the top view structural diagram of.

[0034] Figure 15 It is Figure 13 the partial structural diagram of.

[0035] Figure 16 This is a schematic structural diagram of the pipe orifice tooling in the embodiment of the present invention.

[0036] Figure 17 It is Figure 16 the side view structural diagram of.

[0037] Figure 18 It is Figure 16 the top view structural diagram of. Specific embodiments

[0038] The present invention will be further described in detail below with reference to the accompanying drawings and through embodiments. The following embodiments are explanations of the present invention and the present invention is not limited to the following embodiments.

[0039] 1. The nuclear power high-temperature reactor evaporator complete set of clean production device in the embodiment of the present invention includes an assembly bench 1, a lead house clean production room 2, and a general assembly clean production room 3.

[0040] The number of the lead house clean production room 2 and the general assembly clean production room 3 can be modularly set according to needs. In this embodiment, three lead house clean production rooms 2 and one general assembly clean production room 3 are set. The gates of the lead house clean production room 2 and the general assembly clean production room 3 both adopt sliding doors, and the roofs both adopt telescopic roofs, which are convenient for the hoisting of workpieces.

[0041] The lead house cleaning production room 2 is mainly used for the clean production of processes such as the assembly, welding, heat treatment, and flaw detection of the heat exchange internal parts and the shell of the evaporator, as well as the subsequent general assembly (including air pressure) related processes; in addition, the butt welding of the heat exchange tubes of the evaporator and the tube-to-tube sheet welding require RT detection, and the welding and assembly stations are fixed and cannot be moved, so the lead house cleaning production room 2 must have a radiation shielding function. Therefore, a production lead house 4 is provided in the lead house cleaning production room 2. In order to facilitate the hoisting operation of workpieces, the roof and the gate of the production lead house 4 are integrated into an L-shaped door 41. The L-shaped door 41 includes an inner-layer L-shaped lead door 411 and an outer-layer L-shaped partition door 412. The inner-layer L-shaped lead door 411 and the outer-layer L-shaped partition door 412 are arranged inside and outside, and both are arranged on the production lead house 4 in a single independent translational manner. The inner-layer L-shaped lead door 411 is laid with 6 mm lead plates in the direction perpendicular to the ground and 2.5 mm lead plates on the top, which plays a protective role during flaw detection; the outer-layer L-shaped partition door 412 is not laid with lead plates and mainly plays a partitioning role to ensure the temperature and humidity in the assembly area.

[0042] The general assembly cleaning production room 3 is mainly used for the overall assembly of the heat exchange internal parts and the shell of the evaporator and the general assembly (including air pressure) related processes. In order to reduce the height of the workshop, a pit is provided in the general assembly cleaning production room 3.

[0043] The assembly bench 1 includes a frame 11, a centering and positioning mechanism 12, an internal part support tooling 13, a water supply pipe support tooling 14, a shell support tooling 15, and a work platform 16.

[0044] The frame 11 adopts a profile structure method and is welded into a frame form with steel structures as the main load-bearing members, ensuring the load-bearing capacity and stability of the bench.

[0045] The work platform 16 is fixedly arranged on the frame 11 and is used for the hoisting and subsequent assembly work of the evaporator components.

[0046] The centering and positioning mechanism 12 can ensure the concentricity between the workpiece and the bench during welding. The centering and positioning mechanism 12 includes positioning wheels 124 and a telescopic mechanism. The telescopic mechanism is arranged on the frame 11, and the positioning wheels 124 are arranged on the telescopic mechanism. The telescopic mechanism drives the positioning wheels 124 to expand and contract. The telescopic mechanism includes an electric push rod 121, a swing positioning bracket 122, a pull rod assembly 123, positioning wheels 124, and a wheel bracket 125. The swing positioning bracket 122 is fixedly arranged on the frame 11. Both the electric push rod 121 and the pull rod assembly 123 are arranged on the swing positioning bracket 122, and the electric push rod 121 is connected to the pull rod assembly 123. The wheel bracket 125 is hinged to the pull rod assembly 123, and the wheel bracket 125 can swing when the positioning wheels 124 contact the workpiece, so that the positioning wheels 124 can fit the workpiece more closely. The positioning wheels 124 are arranged on the pull rod assembly 123, and the positioning wheels 124 are conical wheels, which fit the shape of the workpiece. A plurality of centering and positioning mechanisms 12 are arranged in a ring. The centering and positioning mechanism 12 is usually in a tightened state. During workpiece production, the electric push rod 121 pushes the pull rod assembly 123 to expand. The pull rod assembly 123 drives the wheel bracket 125 and the positioning wheels 124 to extend. The positioning wheels 124 support the outer edge of the workpiece. After centering, the electric push rod 121 is locked, so that the workpiece and the bench remain concentric.

[0047] The inner part support tooling 13 is detachably arranged on the top of the frame 11. The inner part support tooling 13 includes a support frame 131 and a pipe orifice tooling 132. The support frame 131 is detachably arranged on the top of the frame 11. The pipe orifice tooling 132 is arranged on the support frame 131, and it includes a fixed base 133, a transverse sliding seat 134, a transverse adjustment bolt 135, a vertical adjustment plate 136, a vertical adjustment bolt 137, a compression hoop 138, a sliding guide bar 139, a transverse fixing bolt 1310, and a vertical fixing bolt 1311. The fixed base 133 is fixedly arranged on the support frame 131; the transverse sliding seat 134 is horizontally movably arranged on the fixed base 133 through the sliding guide bar 139 and is fixed by the transverse fixing bolt 1310; the transverse adjustment bolt 135 is arranged on the fixed base 133 and is connected to the transverse sliding seat 134; the vertical adjustment plate 136 is vertically movably arranged on the transverse sliding seat 134 and is fixed by the vertical fixing bolt 1311; the vertical adjustment bolt 137 is arranged on the transverse sliding seat 134 and is connected to the vertical adjustment plate 136; the compression hoop 138 is fixedly arranged on the vertical adjustment plate 136. A pair of inner part support toolings 13 are provided, which are respectively used to support the outlet pipes on both sides of the upper part of the heat exchange inner part.

[0048] The water supply pipe support tooling 14 is detachably arranged at the bottom of the frame 11. The water supply pipe support tooling 14 includes a support base 141 and a water supply pipe tooling 142. The support base 141 is detachably arranged at the bottom of the frame 11, and the water supply pipe tooling 142 is arranged on the support base 141. The water supply pipe tooling 142 includes a flange base 143 and an adjustment and clamping assembly. The adjustment and clamping assembly includes a wedge pad assembly and a clamping sleeve assembly. The flange base 143 is arranged on the support base 141 and fixed by bolts. A positioning hole 1431 is arranged in the middle of the flange base 143. The wedge pad assembly is arranged between the flange base 143 and the support base 141. It includes an upper wedge pad 144 and a lower wedge pad 145. The upper wedge pad 144 and the lower wedge pad 145 are stacked up and down. The overlapping surface between the upper wedge pad 144 and the lower wedge pad 145 is an inclined surface. Therefore, by adjusting the position between the upper wedge pad 144 and the lower wedge pad 145, the height of the wedge pad assembly can be adjusted. Thus, the height of the flange base 143 at the position where the wedge pad assembly is located can be adjusted to achieve flexible leveling. The clamping sleeve assembly is arranged on the flange base 143. It includes an upper clamping sleeve 146 and a lower clamping sleeve 147. The lower clamping sleeve 147 is fixedly arranged on the hole wall of the positioning hole 1431 of the flange base 143. The upper clamping sleeve 146 is fixed on the flange base 143 by bolts. After the upper clamping sleeve 146 extends into the positioning hole 1431, it is stacked up and down with the lower clamping sleeve 147. The overlapping surface between the upper clamping sleeve 146 and the lower clamping sleeve 147 is an inclined surface. Therefore, when the upper clamping sleeve 146 is pressed downwards, the upper clamping sleeve 146 moves inwards and can better clamp the workpiece. There are multiple adjustment and clamping assemblies, which are arranged in a ring. Thus, the height of multiple positions of the flange base 143 can be adjusted, making the flange base 143 more matched with the workpiece, and multiple positions of the workpiece can also be clamped and fixed.

[0049] The housing support tooling 15 is detachably arranged at the top of the frame 11, and a jack 151 is arranged on the housing support tooling 15.

[0050] An assembly bench 1 is arranged in both the production lead house 4 and the general assembly clean production room 3. The inner part support tooling 13, the water supply pipe support tooling 14, and the housing support tooling 15 can be selectively arranged on the frame 11. The assembly bench 1 arranged in the production lead house 4, when used for the production of the heat exchange inner part, the inner part support tooling 13 and the water supply pipe support tooling 14 are arranged on the frame 11, and the housing support tooling 15 is not arranged. When used for the housing, the housing support tooling 15 is arranged on the frame 11, and the inner part support tooling 13 and the water supply pipe support tooling 14 are not arranged. The assembly bench 1 arranged in the general assembly clean production room 3 is used for the assembly of the heat exchange inner part and the housing. The housing support tooling 15 is arranged on the frame 11, and the inner part support tooling 13 and the water supply pipe support tooling 14 are not arranged.

[0051] II. The working method of the nuclear power high-temperature reactor evaporator complete set of clean production device according to the embodiment of the present invention includes the following steps: (1) When producing heat exchange internals in the lead room clean production room 2: The lateral position of the lateral sliding seat 134 on the fixed base 133 is adjusted by the lateral adjustment bolt 135. After the lateral sliding seat 134 is moved into place, it is fixed by the lateral fixing bolt 1310. The vertical position of the vertical adjustment plate 136 on the lateral sliding seat 134 is adjusted by the vertical adjustment bolt 137. After the vertical adjustment plate 136 is moved into place, it is fixed by the vertical fixing bolt 1311. In this way, the vertical and lateral positions of the clamp 138 are adjusted so that the clamp 138 matches the position of the inlet pipe of the heat exchange internal. At the same time, according to the size and position of the heat exchange internal, the height of the wedge pad assembly is adjusted by adjusting the position between the upper wedge pad 144 and the lower wedge pad 145, thereby adjusting the height of the flange seat 143 where the wedge pad assembly is located, so that the flange seat 143 is kept concentric with the water supply pipe at the bottom of the heat exchange internal; after adjustment, the flange seat 143 and the support seat 141 are fixed by bolts.

[0052] After the heat exchange internals are installed into the frame 11 by hoisting, the electric push rod 121 pushes the pull rod assembly 123 to unfold, and the pull rod assembly 123 drives the wheel bracket 125 and the positioning wheel 124 to extend. The positioning wheel 124 supports the outer edge of the heat exchange internals, and locks the electric push rod 121 after centering, so that the heat exchange internals and the stand remain concentric; the outlet pipes on both sides of the upper part of the heat exchange internals are respectively installed in a pair of pressure hoops 138 of the internal support tooling 13 for fixation, and the bottom of the heat exchange internals is supported on the flange seat 143, and the water supply pipe at the bottom of the heat exchange internals is installed in the lower clamping sleeve 147 of the positioning hole 1431, and then the upper clamping sleeve 146 is installed, and the upper clamping sleeve 146 and the support seat 141 are fixed by bolts, and the upper clamping sleeve 146 presses the water supply pipe.

[0053] The heat exchange internals can then be produced cleanly.

[0054] (2) When the shell is produced in the lead room clean production room 2: After the shell is installed into the frame 11 by hoisting, the upper part of the shell is supported on the shell supporting tooling 15, and the jack 151 supports the shell. The installation angle of the shell can be adjusted by the jack 151. At the same time, the electric push rod 121 pushes the pull rod assembly 123 to expand, and the pull rod assembly 123 drives the wheel bracket 125 and the positioning wheel 124 to extend. The positioning wheel 124 holds the outer edge of the shell, and locks the electric push rod 121 after centering, so that the shell and the stand remain concentric. Then the shell can be cleaned and produced.

[0055] (3) When final assembly production is carried out in the final assembly clean production room 3: After the outer shell produced in the lead house cleaning production room 2 is hoisted and installed into the frame 11 of the general assembly cleaning production room 3, the upper part of the outer shell is supported on the outer shell support tooling 15. The jack 151 presses against the outer shell, and the installation angle of the outer shell can be adjusted through the jack 151. At the same time, the electric push rod 121 pushes the pull rod assembly 123 to unfold. The pull rod assembly 123 drives the wheel bracket 125 and the positioning wheel 124 to extend out. The positioning wheel 124 supports the outer edge of the outer shell. After centering, the electric push rod 121 is locked, so that the outer shell is concentric with the bench. Then, the heat exchange internal parts produced in the lead house cleaning production room 2 are assembled into the outer shell.

[0056] The specific embodiments of the present invention have been described in detail above. For those skilled in the art of this technology, without departing from the principle of the present invention, several improvements and modifications can still be made to the present invention, and these improvements and modifications also fall within the protection scope of the claims of the present invention.

Claims

1. A complete set of clean production devices for a nuclear power high-temperature reactor evaporator, comprising a lead chamber clean production room and a general assembly clean production room; assembly benches are provided in both the lead chamber clean production room and the general assembly clean production room, and the assembly bench includes a frame; characterized in that: The described assembly bench further includes a centering and positioning mechanism, an inner part support tooling, a water supply pipe support tooling, and a housing support tooling; the centering and positioning mechanism includes positioning wheels and a telescopic mechanism, the telescopic mechanism is arranged on the frame, and the positioning wheels are arranged on the telescopic mechanism; Both the inner part support tooling and the housing support tooling are detachably arranged on the top of the frame; The inner part support tooling includes a support frame and a pipe orifice tooling; the support frame is detachably arranged on the top of the frame, and the pipe orifice tooling includes a fixed base, a transverse sliding seat, a transverse adjustment bolt, a vertical adjustment plate, a vertical adjustment bolt, and a pressing hoop; the fixed base is fixedly arranged on the support frame; the transverse sliding seat is arranged to move transversely on the fixed base; the transverse adjustment bolt is connected to the transverse sliding seat; the vertical adjustment plate is arranged to move up and down on the transverse sliding seat; the vertical adjustment bolt is connected to the vertical adjustment plate; the pressing hoop is fixedly arranged on the vertical adjustment plate; the water supply pipe support tooling is detachably arranged on the bottom of the frame, and it includes a support seat and a water supply pipe tooling; the support seat is detachably arranged on the bottom of the frame, and the water supply pipe tooling includes a flange seat and an adjustment and clamping assembly, and the adjustment and clamping assembly includes a wedge pad assembly and a clamping sleeve assembly; the flange seat is arranged on the support seat, and the flange seat is provided with a positioning hole; the wedge pad assembly is arranged between the flange seat and the support seat, and it includes an upper wedge pad and a lower wedge pad which are stacked on top of each other; the clamping sleeve assembly includes an upper clamping sleeve and a lower clamping sleeve, the lower clamping sleeve is fixedly arranged in the positioning hole, the upper clamping sleeve is fixed on the flange seat, and after the upper clamping sleeve extends into the positioning hole, it is stacked on top of the lower clamping sleeve; the inner part support tooling, the water supply pipe support tooling, and the housing support tooling can be selectively arranged on the frame; when the assembly bench is used for the production of heat exchange inner parts, the inner part support tooling and the water supply pipe support tooling are arranged on the frame, and the housing support tooling is not arranged; when the assembly bench is used for the production of the housing and the assembly of the heat exchange inner parts and the housing, the housing support tooling is arranged on the frame, and the inner part support tooling and the water supply pipe support tooling are not arranged.

2. The complete clean production device for the nuclear power high-temperature reactor evaporator according to claim 1, characterized in that: The inner part support tooling further includes a transverse fixing bolt and a vertical fixing bolt, the transverse sliding seat is fixed on the fixed base through the transverse fixing bolt, and the vertical adjustment plate is fixed on the transverse sliding seat through the vertical fixing bolt.

3. The complete set of cleaner production devices for the nuclear power high-temperature reactor evaporator according to claim 1, characterized in that: The overlapping surface between the upper wedge pad and the lower wedge pad is an inclined surface; the overlapping surface between the upper clamping sleeve and the lower clamping sleeve is an inclined surface.

4. The nuclear power high-temperature reactor evaporator complete set of cleaner production device according to claim 1, characterized in that: A jack is arranged on the housing support tooling.

5. The complete set of clean production device for the nuclear power high-temperature reactor evaporator according to claim 1, characterized in that: The telescopic mechanism includes an electric push rod, a swinging positioning bracket, a tie rod assembly, and a wheel bracket; the swinging positioning bracket is fixedly arranged on the frame; both the electric push rod and the tie rod assembly are arranged on the swinging positioning bracket, and the electric push rod is connected to the tie rod assembly; the wheel bracket is hinged to the tie rod assembly; the positioning wheels are arranged on the tie rod assembly.

6. The nuclear power high-temperature reactor evaporator complete set of cleaner production device according to claim 1, characterized in that: A production lead house is arranged in the lead house cleaning production room, and the described assembly bench is arranged in the production lead house.

7. The complete clean production device for the nuclear power high-temperature reactor evaporator according to claim 6, characterized in that: The roof and the door of the production lead house are integrated to form an L-shaped door, and the L-shaped door includes an inner layer L-shaped lead door and an outer layer L-shaped partition door. The inner layer L-shaped lead door and the outer layer L-shaped partition door are arranged inside and outside, and both are arranged to be separately translatable on the production lead house; a lead plate is laid on the inner layer L-shaped lead door.

8. The complete clean production device for the nuclear power high-temperature reactor evaporator according to claim 1, characterized in that: The described assembly bench further includes a working platform, which is fixedly arranged on the frame.

9. The nuclear power high-temperature reactor evaporator complete set of cleaner production device according to claim 1, characterized in that: A plurality of the described adjustment and clamping assemblies are arranged in a ring; a plurality of the described centering and positioning mechanisms are arranged in a ring.

10. A working method of the complete set of clean production devices for the nuclear power high-temperature reactor evaporator according to any one of claims 1-9, characterized in that: It includes the following steps: (1) When producing the heat exchange internal parts in the clean production room of the lead house: Adjust the horizontal position of the horizontal sliding seat on the fixed base through the horizontal adjustment bolt, and adjust the vertical position of the vertical adjustment plate on the horizontal sliding seat through the vertical adjustment bolt, so as to adjust the vertical and horizontal positions of the pressure hoop, making the position of the pressure hoop match the inlet pipe of the heat exchange internal parts; at the same time, adjust the height of the wedge pad assembly by adjusting the position between the upper wedge pad and the lower wedge pad, so as to adjust the height of the flange seat at the position where the wedge pad assembly is located, making the flange seat concentric with the water supply pipe at the bottom of the heat exchange internal parts; After the heat exchange internal parts are installed into the frame, the telescopic mechanism pushes the positioning wheel out, and the positioning wheel supports the outer edge of the heat exchange internal parts, making the heat exchange internal parts concentric with the assembly bench; the outlet pipe of the heat exchange internal parts is installed into the pressure hoop for fixation, the bottom of the heat exchange internal parts is supported on the flange seat, the water supply pipe of the heat exchange internal parts is installed into the lower clamping sleeve of the positioning hole, and then the upper clamping sleeve is installed, and the upper clamping sleeve presses the water supply pipe; Then the clean production of the heat exchange internal parts can be carried out; (2) When producing the outer shell in the clean production room of the lead house: After the outer shell is installed into the frame, the upper part of the outer shell is supported on the outer shell support tooling, the telescopic mechanism pushes the positioning wheel out, and the positioning wheel supports the outer edge of the outer shell, making the outer shell concentric with the assembly bench; then the clean production of the outer shell can be carried out; (3) When carrying out the general assembly production in the general assembly clean production room: After the outer shell produced in the clean production room of the lead house is installed into the frame of the general assembly clean production room, the telescopic mechanism pushes the positioning wheel out, and the positioning wheel supports the outer edge of the outer shell, making the outer shell concentric with the assembly bench; then the heat exchange internal parts produced in the clean production room of the lead house are assembled into the outer shell.

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