Rear-end equipment of engine ground simulation test bed and manufacturing method thereof

Abstract

The invention relates to the technical field of engine ground simulation test stands, in particular to rear-end equipment of an engine ground simulation test stand and a manufacturing method of the rear-end equipment. The engine ground simulation test bench rear-end device comprises an inner cylinder, an outer cylinder, a double-wave waveform compensator module and a single-wave waveform compensator module. The manufacturing method of the rear-end equipment of the engine ground simulation test bed comprises the following steps: prefabricating the double-wave waveform compensator module, and welding the outer cylinders on the two sides of the double-wave waveform compensator module; the method comprises the following steps: prefabricating a single-wave waveform compensator module, and welding an outer cylinder on the single-wave waveform compensator module; and the prefabricated single-wave compensator module and the prefabricated double-wave compensator module are installed at the preset positions of the inner cylinder. By means of modular manufacturing and sub-module installation, it is guaranteed that the single-wave compensator module and the double-wave compensator module do not deform during installation, the construction quality is guaranteed, the construction progress is accelerated, and engineering construction is accelerated.

Description

Technical Field

[0001] The present invention relates to the technical field of engine ground simulation test benches, and in particular to rear-end equipment of an engine ground simulation test bench and a manufacturing method thereof. Background Art

[0002] The rear-end equipment of the engine ground simulation test bench serves as a flow channel for the high-temperature tail flame and tail gas of the engine, and is used to connect the exhaust cooler equipment to cool and recycle the tail gas. Its internal temperature can reach 1800°C during operation. The rear-end equipment of the engine ground simulation test bench generally operates under alternating load conditions such as high temperature and vibration. Its structure is a double-layer cylinder. There is cooling water in the interlayer of the double-layer cylinder for cooling. Compensators are arranged in sections on the outer cylinder to compensate for the additional stress caused by temperature difference and mechanical vibration. The maximum diameter of the rear-end equipment of the engine ground simulation test bench can reach 22m, and the manufacturing and installation are difficult, and the construction quality requirements are high. In view of this, the present invention proposes a manufacturing method for the rear-end equipment of the engine ground simulation test bench to ensure the construction quality and promote the construction progress. Summary of the invention

[0003] The main purpose of the present invention is to provide a method for manufacturing rear-end equipment of an engine ground simulation test bench to ensure construction quality and promote construction progress.

[0004] In order to achieve the above-mentioned purpose, an embodiment of the present invention provides a method for manufacturing rear-end equipment of an engine ground simulation test bench, and the rear-end equipment of the engine ground simulation test bench includes: an inner cylinder, an outer cylinder, a dual-wave waveform compensator module and a single-wave waveform compensator module; the inner cylinder is divided into a straight cylinder section, a first expansion section and a second expansion section along its axial direction; the dual-wave waveform compensator module is arranged on the straight cylinder section and the first expansion section, and the single-wave waveform compensator module is arranged on the second expansion section, and the outer cylinder is arranged between two adjacent single-wave waveform compensator modules, between two adjacent dual-wave waveform compensator modules, and between adjacent single-wave waveform compensator modules and dual-wave waveform compensator modules, and there are two outer cylinders between two adjacent dual-wave waveform compensator modules, and a rib plate is arranged between the two outer cylinders, and the rib plate is connected to the inner cylinder;

[0005] The method for manufacturing the rear-end equipment of the engine ground simulation test bench comprises the following steps:

[0006] Prefabricate a double-wave corrugated compensator module, and weld outer cylinders on both sides of the double-wave corrugated compensator module;

[0007] Prefabricate a single-wave corrugated compensator module, and weld an outer cylinder on the single-wave corrugated compensator module;

[0008] All the double-wave corrugated compensator modules are welded to the straight tube section and the first expansion section in sequence, and the end of the outer tube on each double-wave corrugated compensator module away from the double-wave corrugated compensator module is welded to the rib plate of the inner tube;

[0009] All the single-wave corrugated compensator modules are welded to the second expansion section in sequence, and the end of the outer tube on each single-wave corrugated compensator module away from the single-wave corrugated compensator module is welded to the adjacent single-wave corrugated compensator module.

[0010] Furthermore, the inner cylinder comprises a plurality of inner cylinder bodies connected in sequence;

[0011] The method for manufacturing the rear-end equipment of the engine ground simulation test bench also includes the steps of:

[0012] Cut out a plurality of strips according to the size of each inner cylinder, and pre-bend, roll and weld each strip to form the inner cylinder;

[0013] The inner cylinder bodies are welded in sequence to obtain the inner cylinder, and rib plates are welded to the straight cylinder section and the first expansion section of the inner cylinder.

[0014] Furthermore, the dual-wave waveform compensator module is divided into a first module and a second module, one end of the first module is connected to the second module, and one end of the first module away from the second module and one end of the second module away from the first module are both provided with the outer cylinder;

[0015] The first module comprises a first vertical ring plate, a first horizontal plate, a first compensator, a first connecting plate, a first sealing plate, a first water baffle plate and a first clamping plate; one end of the first vertical ring plate is connected to the first horizontal plate, the first compensator and the first connecting plate in sequence, and the first sealing plate, the first water baffle plate and the first clamping plate are arranged between the first vertical ring plate and the first connecting plate; the second module comprises a second horizontal plate, a second compensator, a second connecting plate, a second sealing plate, a second clamping plate and a second water baffle plate; the second horizontal plate, the second compensator and the second connecting plate are connected in sequence, and the second water baffle plate, the second sealing plate and the second clamping plate are connected to the inner side of the second connecting plate;

[0016] The steps of prefabricating the dual-wave corrugated compensator module and welding the outer cylinders on both sides of the dual-wave corrugated compensator module include the following steps:

[0017] Prefabricate the first module and weld the outer cylinder on the first module:

[0018] Carve the orientation marking line on the first prefabricated platform according to the size of the first vertical ring plate;

[0019] Placing the first vertical ring plate on the first prefabricated platform, and adjusting the orientation of the first vertical ring plate based on the orientation marking line;

[0020] Carve the installation position line of the first horizontal plate on the first vertical ring plate;

[0021] Welding the first horizontal plate on the first vertical ring plate based on the installation position line of the first horizontal plate;

[0022] Welding the first compensator and the first connecting plate in sequence at one end of the first horizontal plate away from the first vertical ring plate;

[0023] A first water retaining plate, a first sealing plate and a first clamping plate are installed between the first connecting plate and the first vertical ring plate, and a second sealing plate and a second clamping plate are installed on a side of the second vertical ring plate away from the first connecting plate;

[0024] Welding an outer cylinder to a side of the first connecting plate away from the first vertical ring plate;

[0025] Repeat the above steps until the first module of all dual-waveform compensator modules is prefabricated;

[0026] Prefabricate the second module and weld the outer cylinder on the second module: carve the installation position line of the second horizontal plate on the second prefabrication platform according to the size of the second horizontal plate;

[0027] Welding a limit block at the outer edge of the installation position line of the second horizontal plate;

[0028] Place the second horizontal plate in the space surrounded by the limit blocks;

[0029] Weld the supporting fixture of the second compensator on the second prefabricated platform, and weld the second compensator and the second connecting plate in sequence at one end of the second horizontal plate;

[0030] Install a second water retaining plate on the second connecting plate;

[0031] Welding an outer cylinder to a side of the second connecting plate away from the second water retaining plate;

[0032] Repeat the above steps until the second module of all dual-wave compensator modules is prefabricated.

[0033] Furthermore, the steps of installing the first water retaining plate, the first sealing plate and the first clamping plate between the first connecting plate and the first vertical ring plate, and before installing the second sealing plate and the second clamping plate on the side of the second vertical ring plate away from the first connecting plate, also include the step of: inspecting the welds produced during the prefabrication process.

[0034] Furthermore, before the second water retaining plate is installed on the second connecting plate, the step also includes the step of: detecting the welds produced during the prefabrication process.

[0035] Furthermore, the steps of welding all the dual-wave corrugated compensator modules to the straight tube section and the first expansion section in sequence, and welding one end of the outer tube on each dual-wave corrugated compensator module away from the dual-wave corrugated compensator module to the rib plate of the inner tube include the steps of:

[0036] Turn over the first module, put the first module outside the inner tube, make the first vertical ring plate contact with the outer wall of the inner tube, and weld the first vertical ring plate and the inner tube;

[0037] The end of the outer cylinder away from the first module is welded to the rib plate;

[0038] Sleeve the second module outside the outer tube, weld the second horizontal plate to the first vertical ring plate, and connect the second water retaining plate to the second clamping plate;

[0039] The end of the outer cylinder away from the second module is welded to the rib plate;

[0040] Repeat the above steps until all the first modules and the second modules are installed.

[0041] Further, the single-wave waveform compensator module includes: a second vertical ring plate, a third horizontal plate, a third compensator, a third connecting plate, a third sealing plate and a third water baffle plate; one end of the second vertical ring plate is sequentially connected to the third horizontal plate, the third compensator and the third connecting plate; the third sealing plate and the third water baffle plate are arranged between the second vertical ring plate and the third connecting plate;

[0042] The steps of prefabricating the single-wave corrugated compensator module and welding the outer cylinder on the single-wave corrugated compensator module include the following steps:

[0043] The second vertical ring plate, the third horizontal plate, the third compensator and the third connecting plate are all arranged in sections;

[0044] Carve the outer dimension line of the second vertical ring plate on the third prefabricated platform according to the dimension of the second vertical ring plate;

[0045] Weld the limit plates on both sides of the outer dimension line of the second vertical ring plate;

[0046] Place the sections of the second vertical ring plate in sequence in the space surrounded by the limiting plates and connect them together;

[0047] Carve the installation position line of the third horizontal plate on each section of the second vertical ring plate;

[0048] Placing each section of the third horizontal plate on the corresponding plate body of the second vertical ring plate based on the installation position line of the third horizontal plate and welding them;

[0049] The plate bodies of the third compensator and the third connecting plate are sequentially welded to the end of the plate body of the corresponding third horizontal plate away from the plate body of the second vertical ring plate to obtain multiple crescent segments; a "M"-shaped tooling platform is prefabricated, and the crescent segments welded above are turned over and placed on the "M"-shaped tooling platform, and the crescent segments are butt-jointed and welded into a circle;

[0050] Install a third water retaining plate and a third sealing plate between the second vertical ring plate and the third connecting plate;

[0051] An outer cylinder is welded on a side of the third connecting plate facing away from the second vertical ring plate;

[0052] Repeat the above steps until all single-wave compensator modules are prefabricated.

[0053] Furthermore, before the third water retaining plate and the third sealing plate are installed between the second vertical ring plate and the third connecting plate, the step also includes a step of detecting the welds produced during the prefabrication process.

[0054] Furthermore, the step of welding all the single-wave corrugated compensator modules to the second expansion section in sequence, and welding one end of the outer cylinder on each single-wave corrugated compensator module away from the single-wave corrugated compensator module to the adjacent single-wave corrugated compensator module includes the steps of:

[0055] Welding lugs on single-wave corrugated compensator modules;

[0056] The single-wave corrugated compensator module is hoisted to the outside of the inner tube using lifting equipment, and the first vertical ring plate is welded to the inner tube.

[0057] Another embodiment of the present invention further provides a rear-end device of an engine ground simulation test bench, which is manufactured using the method for manufacturing the rear-end device of an engine ground simulation test bench described in any of the above embodiments.

[0058] Beneficial effects of the present invention:

[0059] The present invention provides a method for manufacturing rear-end equipment of an engine ground simulation test bench, wherein the rear-end equipment of the engine ground simulation test bench comprises: an inner cylinder, an outer cylinder, a dual-wave waveform compensator module and a single-wave waveform compensator module; the inner cylinder is divided into a straight cylinder section, a first expansion section and a second expansion section along its axial direction; the dual-wave waveform compensator module is arranged on the straight cylinder section and the first expansion section, and the single-wave waveform compensator module is arranged on the second expansion section; the outer cylinder is arranged between two adjacent single-wave waveform compensator modules, between two adjacent dual-wave waveform compensator modules, and between adjacent single-wave waveform compensator modules and dual-wave waveform compensator modules, and the outer cylinder between two adjacent dual-wave waveform compensator modules is two A rib plate is provided between the two outer cylinders, and the rib plate is connected to the inner cylinder; the manufacturing method of the rear-end equipment of the engine ground simulation test bench includes the steps of: prefabricating a dual-wave waveform compensator module, and welding the outer cylinders on both sides of the dual-wave waveform compensator module; prefabricating a single-wave waveform compensator module, and welding the outer cylinder on the single-wave waveform compensator module; welding all the dual-wave waveform compensator modules to the straight cylinder section and the first expansion section in turn, and the end of the outer cylinder on each dual-wave waveform compensator module away from the dual-wave waveform compensator module is welded to the rib plate of the inner cylinder; welding all the single-wave waveform compensator modules to the second expansion section in turn, and the end of the outer cylinder on each single-wave waveform compensator module away from the single-wave waveform compensator module is welded to the adjacent single-wave waveform compensator module.

[0060] Since the diameter of the rear-end equipment of the engine ground simulation test bench is relatively large, the present invention can ensure that the above-mentioned single-wave compensator module and double-wave compensator module will not be deformed during installation through modular production and modular installation, and can also ensure construction quality, speed up construction progress, and accelerate engineering construction. BRIEF DESCRIPTION OF THE DRAWINGS

[0061] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0062] Figure 1 A schematic diagram of the structure of the rear-end equipment of the engine ground simulation test bench provided by an embodiment of the present invention;

[0063] Figure 2 It is a structural diagram of a single-waveform compensator module;

[0064] Figure 3 It is a structural diagram of a dual-waveform compensator module;

[0065] Figure 4 for Figure 1 A local enlarged view of point A;

[0066] Figure 5 for Figure 1 A local enlarged view of point B;

[0067] Figure 6 for Figure 1 A partial enlarged view of point C.

[0068] Icons: 1-inner tube; 2-outer tube; 3-double-wave waveform compensator module; 31-first module; 311-first vertical ring plate; 312-first horizontal plate; 313-first compensator; 314-first connecting plate; 315-first sealing plate; 316-first water retaining plate; 317-first clamping plate; 32-second module; 321-second horizontal plate; 322-second compensator; 323-second connecting plate; 324-second sealing plate; 325-second clamping plate; 326-second water retaining plate; 4-single-wave waveform compensator module; 41-second vertical ring plate; 42-third horizontal plate; 43-third compensator; 44-third connecting plate; 45-third sealing plate; 46-third water retaining plate; 8-rib plate. DETAILED DESCRIPTION

[0069] The technical solution of the present invention will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0070] like Figures 1 to 6As shown, one embodiment of the present invention provides a method for manufacturing rear-end equipment of an engine ground simulation test bench, the rear-end equipment of the engine ground simulation test bench includes: an inner barrel 1, an outer barrel 2, a dual-wave waveform compensator module 3 and a single-wave waveform compensator module 4; the inner barrel 1 is divided into a straight barrel section, a first expansion section and a second expansion section along its axial direction; the dual-wave waveform compensator module 3 is arranged on the straight barrel section and the first expansion section, the single-wave waveform compensator module 4 is arranged on the second expansion section, an outer barrel 2 is arranged between two adjacent single-wave waveform compensator modules 4, between two adjacent dual-wave waveform compensator modules 3, and between adjacent single-wave waveform compensator modules 4 and dual-wave waveform compensator modules 3, and there are two outer barrels 2 between two adjacent dual-wave waveform compensator modules 3, and there is one outer barrel 2 between the two outer barrels 2. Rib plate 8, rib plate 8 is connected to the inner tube 1; the manufacturing method of the rear-end equipment of the engine ground simulation test bench includes the following steps: prefabricating a dual-wave waveform compensator module 3, and welding the outer tube 2 on both sides of the dual-wave waveform compensator module 3; prefabricating a single-wave waveform compensator module 4, and welding the outer tube 2 on the single-wave waveform compensator module 4; welding all the dual-wave waveform compensator modules 3 to the straight tube section and the first expansion section in turn, and the end of the outer tube 2 on each dual-wave waveform compensator module 3 away from the dual-wave waveform compensator module 3 is welded to the rib plate 8 of the inner tube 1; welding all the single-wave waveform compensator modules 4 to the second expansion section in turn, and the end of the outer tube 2 on each single-wave waveform compensator module 4 away from the single-wave waveform compensator module 4 is welded to the adjacent single-wave waveform compensator module 4.

[0071] The manufacturing method of the rear-end equipment of the engine ground simulation test bench provided in this embodiment is used to manufacture the rear-end equipment of the engine ground simulation test bench. Among them, the rear-end equipment of the engine ground simulation test bench is a trumpet-shaped structure, and the rear-end equipment of the engine ground simulation test bench includes an inner cylinder 1, an outer cylinder 2, a double-wave corrugated compensator module 3 and a single-wave corrugated compensator module 4. The inner cylinder 1 includes multiple sections of inner cylinder bodies connected in sequence, and the inner cylinder 1 is divided into a straight cylinder section and a first expansion section and a second expansion section whose diameters expand in sequence along its own axial direction; the above-mentioned double-wave corrugated compensator module 3 is arranged on the straight cylinder section and the first expansion section, and the above-mentioned single-wave corrugated compensator module 4 is arranged on the second expansion section. An outer cylinder 2 is arranged between two adjacent single-wave corrugated compensator modules 4, and two outer cylinders 2 are arranged between two adjacent double-wave corrugated compensator modules 3. The two outer cylinders 2 between two adjacent double-wave corrugated compensator modules 3 are separated by a rib plate 8 welded to the inner cylinder 1. An independently arranged annular cooling water channel is formed between each outer tube 2 and the inner tube 1. The cooling water channel is used to flow cooling water. Since multiple outer tubes 2 are provided, multiple cooling water channels are also provided. The two ends of the cooling water channel located in the straight tube section and the first expansion section are respectively closed by the rib plate 8 and the double-wave compensator module 3, and the two ends of the cooling water channel located in the second expansion section are closed by the single-wave compensator modules 4 at both ends.Further, in this embodiment, the above-mentioned dual-wave waveform compensator module 3 includes a first vertical ring plate 311, a first horizontal plate 312, a first compensator 313, a first connecting plate 314, a first sealing plate 315, a first water baffle 316, a first clamping plate 317, a second horizontal plate 321, a second compensator 322, a second connecting plate 323, a second sealing plate 324, a second clamping plate 325 and a second water baffle 326; the first vertical ring plate 311, the first connecting plate 314 and the second connecting plate 323 are all annular plates, the first horizontal plate 312, the second horizontal plate 321, the first water baffle 316, the second water baffle 326, the first clamping plate 317, the second clamping plate 325, the first sealing plate 315 and the second horizontal plate 321. The two sealing plates 324 are both cylindrical structures; the inner edge of the first vertical ring plate 311 is connected to the inner tube 1, and the first horizontal plate 312 and the second horizontal plate 321 are connected to the two sides of the first vertical ring plate 311 close to the outer edge respectively; one end of the first compensator 313 is connected to the first horizontal plate 312, and the other end is connected to the outer edge of the first connecting plate 314, and the inner edge of the first connecting plate 314 is connected to the inner tube 1; the first water retaining plate 316, the first clamping plate 317 and the first sealing plate 315 are located between the first connecting plate 314 and the first vertical ring plate 311; specifically, the first vertical ring plate 311 is connected to the first connecting plate 314 on one side close to the inner edge with the first clamping plate 317 and the first sealing plate 315, the first clamping plate 317 and the first sealing plate 315 are connected to the first connecting plate 314 on one side close to the inner edge, and the first clamping plate 317 and the first sealing plate 315 are connected to the first connecting plate 314 on one side close to the inner edge. The plate 317 and the first sealing plate 315 are arranged at intervals and the first clamping plate 317 is located on the inner side of the first sealing plate 315. The first connecting plate 314 is connected to the first water retaining plate 316 on the side close to the inner edge facing the first vertical ring plate 311, and the end of the first water retaining plate 316 away from the first connecting plate 314 is inserted between the first clamping plate 317 and the first sealing plate 315; the first connecting plate 314 is connected to the outer cylinder 2 on the side close to the inner edge facing away from the first vertical ring plate 311; one end of the second compensator 322 is connected to the second horizontal plate 321, and the other end is connected to the outer edge of the second connecting plate 323, and the inner edge of the second connecting plate 323 is connected to the inner cylinder 1; the second water retaining plate 326, the second clamping plate 325 and the second sealing Plate 324 is located between the second connecting plate 323 and the first vertical ring plate 311; specifically, a second clamping plate 325 and a second sealing plate 324 are connected to a side of the first vertical ring plate 311 facing the second connecting plate 323, which is close to the inner edge. The second clamping plate 325 and the second sealing plate 324 are spaced apart and the second clamping plate 325 is located on the outside of the second sealing plate 324. A second water retaining plate 326 is connected to a side of the second connecting plate 323 facing the first vertical ring plate 311, which is close to the inner edge. An end of the second water retaining plate 326 away from the second connecting plate 323 is inserted between the second clamping plate 325 and the second sealing plate 324. An outer tube 2 is connected to a side of the second connecting plate 323, which is close to the inner edge, which is away from the first vertical ring plate 311.During the process of assembling the dual-wave waveform compensator module 3, in order to facilitate assembly, the dual-wave waveform compensator module 3 is divided into a first module 31 and a second module 32. The first module 31 includes a first vertical ring plate 311, a first horizontal plate 312, a first compensator 313, a first connecting plate 314, a first sealing plate 315, a first water retaining plate 316 and a first clamping plate 317. The second module 32 includes a second horizontal plate 321, a second compensator 322, a second connecting plate 323, a second sealing plate 324, a second clamping plate 325 and a second water retaining plate 326. The specific implementation method is described in detail below. The above-mentioned single-wave waveform compensator module 4 includes a second vertical ring plate 41, a third horizontal plate 42, a third compensator 43, a third connecting plate 44, a third sealing plate 45 and a third water baffle plate 46; the second vertical ring plate 41 and the third connecting plate 44 are both annular plates, the third horizontal plate 42, the third sealing plate 45 and the third water baffle plate 46 are all cylindrical structures, the third compensator 43 has the same shape as the first compensator 313 and the second compensator 322, but the difference is that the size is different; the inner edge of the second vertical ring plate 41 is connected to the inner tube 1, and the third horizontal plate 42 is connected to one side of the second vertical ring plate 41 close to the outer edge; the third compensator One end of 43 is connected to the third horizontal plate 42, and the other end is connected to the outer edge of the third connecting plate 44, and the inner edge of the third connecting plate 44 is connected to the inner tube 1; the third water baffle plate 46 and the third sealing plate 45 are located between the third connecting plate 44 and the second vertical ring plate 41; specifically, the third sealing plate 45 is connected to the side of the second vertical ring plate 41 facing the third connecting plate 44 close to the inner edge, and the third connecting plate 44 is connected to the side of the second vertical ring plate 41 close to the inner edge, and the third water baffle plate 46 is connected to the side of the third connecting plate 44 facing the second vertical ring plate 41 close to the inner edge, and the third water baffle plate 46 is staggered with an end away from the third connecting plate 44 and an end of the third sealing plate 45 away from the second vertical ring plate 41. The first water baffle 316, the first clamping plate 317 and the first sealing plate 315 are used to isolate the first compensator 313 from the cooling water flow channel, the second water baffle 326, the second clamping plate 325 and the first sealing plate 315 are used to isolate the second compensator 322 from the cooling water flow channel, and the third water baffle 46 and the third sealing plate 45 are used to isolate the third compensator 43 from the cooling water flow channel.

[0072] The method for manufacturing the back-end equipment of the ground simulation test bench provided by the embodiment of the present invention comprises the steps of:

[0073] Prefabricate a dual-wave corrugated compensator module 3, and weld an outer cylinder 2 on both sides of the dual-wave corrugated compensator module 3;

[0074] Prefabricate a single-wave corrugated compensator module 4, and weld an outer cylinder 2 on the single-wave corrugated compensator module 4;

[0075] All the double-wave corrugated compensator modules 3 are welded to the straight tube section and the first expansion section in sequence, and the end of the outer tube 2 on each double-wave corrugated compensator module 3 away from the double-wave corrugated compensator module 3 is welded to the rib plate 8 of the inner tube 1;

[0076] All the single-wave corrugated compensator modules 4 are welded to the second expansion section in sequence, and the end of the outer cylinder 2 on each single-wave corrugated compensator module 4 away from the single-wave corrugated compensator module 4 is welded to the adjacent single-wave corrugated compensator module 4 .

[0077] When manufacturing the back-end equipment of the ground simulation test bench in this embodiment, first prefabricate the dual-wave waveform compensator module 3 and the single-wave waveform compensator module 4, and weld the outer cylinder 2 on both sides of the dual-wave waveform compensator module 3, and weld the outer cylinder 2 on the single-wave waveform compensator module 4; the prefabrication of the single-wave waveform compensator module 4 and the prefabrication of the dual-wave waveform compensator module 3 are in no particular order and can be carried out simultaneously. After the single-wave waveform compensator module 4 and the outer cylinder 2 are welded, the single-wave waveform compensator module 4 and the outer cylinder 2 can be installed on the second expansion section of the inner cylinder 1, and the single-wave waveform compensator module 4 and the inner cylinder 1, as well as the outer cylinder 2 on the single-wave waveform compensator and another single-wave waveform compensator module 4 can be welded; after the double-wave waveform compensator module 3 and the outer cylinder 2 are welded, the double-wave waveform compensator module 3 and the outer cylinder 2 can be installed on the straight cylinder section and the first expansion section of the inner cylinder 1, and the double-wave waveform compensator module 3 and the inner cylinder 1, as well as the outer cylinder 2 on the double-wave waveform compensator module 3 and the rib plate 8 on the inner cylinder 1 can be welded.

[0078] The manufacturing method of the rear-end equipment of the engine ground simulation test bench provided in the embodiment of the present invention, since the diameter of the rear-end equipment of the engine ground simulation test bench is relatively large, therefore, in this embodiment, through modular manufacturing and modular installation and other operation methods, it can ensure that the above-mentioned single-wave waveform compensator module 4 and double-wave waveform compensator module 3 will not be deformed during installation, and can ensure the construction quality, speed up the construction progress, and accelerate the project construction.

[0079] The manufacturing method of the rear-end equipment of the engine ground simulation test bench provided by the embodiment of the present invention further comprises the steps of:

[0080] Cut out a plurality of strips according to the size of each inner cylinder, and pre-bend, roll and weld each strip to form the inner cylinder;

[0081] Repeat the above steps until all inner cylinders are completed;

[0082] The inner cylinder bodies are welded in sequence to obtain the inner cylinder 1 , and the rib plates 8 are welded to the straight cylinder section and the first expansion section of the inner cylinder 1 .

[0083] The inner cylinder 1 of the rear-end equipment of the above-mentioned engine ground simulation test bench is formed by welding multiple sections of inner cylinders in sequence. In the process of making the inner cylinder 1, first, the inner cylinder 1 is divided according to actual needs to divide the number of inner cylinders, and then the material is cut according to the number and size of the divided inner cylinders to obtain the strip plates of each inner cylinder. During the production of the inner cylinder, the strip of the inner cylinder is first pre-bent at the end by using a hydraulic press or other equipment, and then rolled by a four-roller plate rolling machine. The rolling is carried out by multiple rolling methods, and the two ends are rolled first during rolling. The forward and backward methods are used, and the length of each rolling should be gradually shortened. After that, the ground sample control points of the inner cylinder are measured and released on the tooling platform, and the strip assembly circumference line and cross center line corresponding to the inner cylinder are drawn on the support seat of the platform of the on-site prefabrication site, and then a positioning stopper is welded on the inner side of the strip assembly circumference line to ensure the roundness; then each strip is hoisted onto the steel platform according to the ground sample, and assembled and formed in turn; the inner cylinder roundness is adjusted to coincide with the strip assembly circumference line by a wedge iron, and the gap and misalignment between the strips are adjusted by a gantry card, etc., and spot welded and fixed after meeting the requirements. The above steps are repeated until all the inner cylinders are completed, and then each inner cylinder is welded in turn to obtain the inner cylinder 1 of the rear-end equipment of the engine ground simulation test bench. After welding, the weld needs to be inspected, and at least one of 100% RT (Radiographic Testing) and 100% PT (Penetrant Testing) can be used.

[0084] The manufacturing method of the rear-end equipment of the engine ground simulation test bench provided by the embodiment of the present invention comprises the steps of prefabricating the dual-wave waveform compensator module 3 and welding the outer cylinder 2 on both sides of the dual-wave waveform compensator module 3:

[0085] Prefabricate the first module 31 and weld the outer cylinder 2 on the first module 31:

[0086] Carve the orientation marking line on the first prefabricated platform according to the size of the first vertical ring plate 311;

[0087] Placing the first vertical ring plate 311 on the first prefabricated platform, and adjusting the orientation of the first vertical ring plate 311 based on the orientation marking line;

[0088] The installation position line of the first horizontal plate 312 is engraved on the first vertical ring plate 311;

[0089] Welding the first horizontal plate 312 on the first vertical ring plate 311 based on the installation position line of the first horizontal plate 312;

[0090] A first compensator 313 and a first connecting plate 314 are sequentially welded on one end of the first horizontal plate 312 away from the first vertical ring plate 311;

[0091] A first water retaining plate 316, a first sealing plate 315 and a first clamping plate 317 are installed between the first connecting plate 314 and the first vertical ring plate 311, and a second sealing plate 324 and a second clamping plate 325 are installed on a side of the second vertical ring plate 41 away from the first connecting plate 314;

[0092] The outer cylinder 2 is welded to the side of the first connecting plate 314 away from the first vertical ring plate 311;

[0093] Repeat the above steps until the first module 31 of all dual-waveform compensator modules 3 is prefabricated;

[0094] Prefabricate the second module 32 and weld the outer cylinder 2 on the second module 32: carve the installation position line of the second horizontal plate 321 on the second prefabrication platform according to the size of the second horizontal plate 321;

[0095] A limit block is welded on the outer edge of the installation position line of the second horizontal plate 321;

[0096] Place the second horizontal plate 321 in the space surrounded by the limiting blocks;

[0097] Weld the supporting fixture of the second compensator 322 on the second prefabricated platform, and weld the second compensator 322 and the second connecting plate 323 in sequence at one end of the second horizontal plate 321;

[0098] A second water retaining plate 326 is installed on the second connecting plate 323;

[0099] The outer cylinder 2 is welded to a side of the second connecting plate 323 away from the second water retaining plate 326;

[0100] Repeat the above steps until the second modules 32 of all the dual-waveform compensator modules 3 are prefabricated.

[0101] In this embodiment, when the dual-wave corrugated compensator module 3 is prefabricated and the outer cylinder 2 is welded on the dual-wave corrugated compensator module 3, the dual-wave corrugated compensator module 3 is manufactured in a modular manner. As mentioned above, the dual-wave corrugated compensator module 3 is divided into a first module 31 and a second module 32, and the outer cylinder 2 is welded on the first module 31 and the second module 32. Specifically, in the process of prefabricating the first module 31, first, the orientation marking line of the first vertical ring plate 311 is engraved on the first prefabricated platform according to the size of the first vertical ring plate 311, and then the first vertical ring plate 311 is hoisted to the first prefabricated platform, and the position of the first vertical ring plate 311 is adjusted according to the orientation marking line of the first vertical ring plate 311 to ensure that the position of the first vertical ring plate 311 is correctly placed; the first prefabricated platform can adopt a steel plate structure, etc. After the position of the first vertical ring plate 311 is confirmed, the installation position line of the first horizontal plate 312 is engraved on the first vertical ring plate 311 according to the size of the first horizontal plate 312, and one end of the first horizontal plate 312 is welded to the first vertical ring plate 311 according to the installation position line of the first horizontal plate 312; after the first horizontal plate 312 is welded, the first compensator 313 is welded to the end of the first horizontal plate 312 away from the first vertical ring plate 311, and the first connecting plate 314 is welded to the end of the first compensator 313 away from the first horizontal plate 312; before welding the first compensator 313, a limiting steel plate can be welded on the first prefabricated platform to support the first compensator 313 and the subsequent first connecting plate 314. After the above steps are completed, the welds generated during the welding process are subjected to 100% RT inspection to ensure the quality of the welds. After the inspection is completed, the first water baffle 316, the first sealing plate 315, the first clamping plate 317, the second sealing plate 324 and the second clamping plate 325 are installed. Specifically, the first clamping plate 317 and the first sealing plate 315 are welded on the side of the first vertical ring plate 311 facing the first connecting plate 314, and the first sealing plate 315 is located on the outside of the first clamping plate 317; the first water baffle 316 is welded on the side of the first connecting plate 314 facing the first vertical ring plate 311, and the end of the water baffle away from the first connecting plate 314 is inserted between the first clamping plate 317 and the first sealing plate 315; the second clamping plate 325 and the second sealing plate 324 are welded on the side of the first vertical ring plate 311 away from the first connecting plate 314, and the second clamping plate 325 is located on the outside of the first sealing plate 315; after the above process is completed, the outer cylinder 2 is welded on the side of the first connecting plate 314 away from the first vertical ring plate 311; the above steps are repeated until all the first modules 31 with the outer cylinder 2 are prefabricated.During the prefabrication of the second module 32, first, the installation position line of the second horizontal plate 321 is engraved on the second prefabrication platform according to the size of the second horizontal plate 321. Then, according to the installation position line of the second horizontal plate 321, the limit blocks are welded on the second prefabrication platform along the outer edge of the installation position line of the second horizontal plate 321, and all the limit blocks enclose a limit space; the second horizontal plate 321 is hoisted into the limit space of the second prefabrication platform, so that the limit blocks and the outer edge of the second horizontal plate 321 are abutted to limit and fix the second horizontal plate 321. After the second horizontal plate 321 is fixed, the second compensator 322 and the second connecting plate 323 are welded on the second horizontal plate 321 in sequence. When welding the second compensator 322, a supporting tooling needs to be installed on the second prefabrication platform to prevent the second compensator 322 from deforming. After the above steps are completed, the welds generated during the prefabrication of the second module 32 are subjected to 100% RT and 100% PT inspections to ensure the quality of the welds. After the inspection is completed, the second water retaining plate 326 is welded to one side of the second connecting plate 323 facing the first vertical ring plate 311, and the outer cylinder 2 is welded to the other side; the above steps are repeated until all the second modules 32 with the outer cylinder 2 are prefabricated.

[0102] The manufacturing method of the rear-end equipment of the engine ground simulation test bench provided by the embodiment of the present invention comprises the steps of prefabricating the single-wave waveform compensator module 4 and welding the outer cylinder 2 on the single-wave waveform compensator module 4:

[0103] The second vertical ring plate 41, the third horizontal plate 42, the third compensator 43 and the third connecting plate 44 are all arranged in sections;

[0104] According to the size of the second vertical ring plate 41, the outer dimension line of the second vertical ring plate 41 is carved on the third prefabricated platform;

[0105] Limiting plates are welded on both sides of the outer dimension line of the second vertical ring plate 41;

[0106] The sections of the second vertical ring plate 41 are sequentially placed in the space surrounded by the limiting plates and connected to each other;

[0107] The installation position lines of the third horizontal plate 42 are engraved on each section of the second vertical ring plate 41;

[0108] Place each section of the third horizontal plate 42 on the corresponding plate of the second vertical ring plate 41 based on the installation position line of the third horizontal plate 42 and weld them;

[0109] The plate bodies of the third compensator 43 and the third connecting plate 44 are sequentially welded to the end of the plate body of the corresponding third horizontal plate 42 away from the plate body of the second vertical ring plate 41 to obtain multiple crescent segments; a "M"-shaped tooling platform is prefabricated, and the crescent segments welded above are turned over and placed on the "M"-shaped tooling platform, and the crescent segments are butt-jointed and welded into a circle;

[0110] A third water retaining plate 46 and a third sealing plate 45 are installed between the second vertical ring plate 41 and the third connecting plate 44;

[0111] The outer cylinder 2 is welded to the side of the third connecting plate 44 facing away from the second vertical ring plate 41;

[0112] Repeat the above steps until all single-waveform compensator modules 4 are prefabricated.

[0113] In the present embodiment, the diameter of the single-wave corrugated compensator module 4 can reach 22 meters. There are problems such as large external dimensions, thin wall thickness, high welding quality requirements, and variability in lifting. Therefore, in the present embodiment, the single-wave corrugated compensator module 4 is manufactured in sections. Specifically, the second vertical ring plate 41, the third horizontal plate 42, the third compensator 43 and the third connecting plate 44 of the single-wave corrugated compensator module 4 are all arranged in sections; during the prefabrication process, the external dimension line of the second vertical ring plate 41 is firstly engraved on the third prefabricated platform, and the structure of the third prefabricated platform is the same as that of the first prefabricated platform and the second prefabricated platform; after the external dimension line of the second vertical ring plate 41 is engraved, limit plates are welded on both sides of the external dimension line of the second vertical ring plate 41 to limit the positions of the various sections of the second vertical ring plate 41; after the above steps are completed, the various sections of the second vertical ring plate 41 are hoisted to the third prefabricated platform; then, on the second vertical ring plate 4 1, the installation position lines of the corresponding sections of the third horizontal plate 42 are engraved on each section of the plate body, and the sections of the third horizontal plate 42 are hoisted to the corresponding second vertical ring plate 41 according to the installation position lines of the sections of the third horizontal plate 42 and welded; then, the sections of the third compensator 43 and the third connecting plate 44 are welded in sequence to the end of the corresponding third horizontal plate 42 away from the second vertical ring plate 41, and when welding the plate body of the third compensator 43, a support block is also set on the third prefabrication platform to support the plate body of the third compensator 43; after the above steps are completed, the welds generated during the prefabrication process are subjected to 100% RT and 100% PT inspection. The structure composed of the second vertical ring plate 41, the third horizontal plate 42, the third compensator 43 and the third connecting plate 44 obtained above is defined as a crescent segment; the prefabrication of the single-wave waveform compensator module 4 also requires the splicing of the crescent segments of the same single-wave waveform compensator module 4. Specifically, a "M"-shaped tooling platform is made according to the size of each single-wave corrugated compensator module 4, and each crescent segment welded above is turned over and placed on the "M"-shaped tooling platform, and each crescent segment is butted and welded into a circle. Finally, the third sealing plate 45 is welded on the side of the third connecting plate 44 facing the second vertical ring plate 41, and the third water retaining plate 46 is welded on the side of the second vertical ring plate 41 facing the third connecting plate 44. The above steps are repeated until all single-wave corrugated compensator modules 4 are prefabricated.

[0114] The manufacturing method of the rear-end equipment of the engine ground simulation test bench provided by the embodiment of the present invention comprises the steps of welding all the dual-wave corrugated compensator modules 3 to the straight tube section and the first expansion section in sequence, and welding the end of the outer tube 2 on each dual-wave corrugated compensator module 3 away from the dual-wave corrugated compensator module 3 to the rib plate 8 of the inner tube 1, including the steps of:

[0115] Turn over the first module 31, and put the first module 31 outside the inner tube 1, so that the first vertical ring plate 311 is in contact with the outer wall of the inner tube 1, and weld the first vertical ring plate 311 and the inner tube 1;

[0116] The end of the outer cylinder 2 away from the first module 31 is welded to the rib plate 8;

[0117] The second module 32 is sleeved outside the outer tube 2, the second horizontal plate 321 is welded to the first vertical ring plate 311, and the second water retaining plate 326 is connected to the second clamping plate 325;

[0118] The end of the outer cylinder 2 away from the second module 32 is welded to the rib plate 8;

[0119] Repeat the above steps until all the first modules 31 and the second modules 32 are installed.

[0120] The steps of welding all the single-wave corrugated compensator modules 4 to the second expansion section in sequence, and welding the end of the outer cylinder 2 on each single-wave corrugated compensator module 4 away from the single-wave corrugated compensator module 4 to the adjacent single-wave corrugated compensator module 4 include the following steps:

[0121] Welding the lifting lugs on the single-wave corrugated compensator module 4;

[0122] The single-wave corrugated compensator module 4 is hoisted to the outside of the inner tube 1 by using a lifting device, and the second vertical ring plate 41 is welded to the inner tube 1 .

[0123] In this embodiment, when installing the dual-wave waveform compensator module 3 with the outer cylinder 2 and the single-wave waveform compensator module 4 with the outer cylinder 2, for the installation of the dual-wave waveform compensator module 3, the first module 31 of the dual-wave waveform compensator module 3 is flipped over and hoisted to the outside of the inner cylinder 1 by using a lifting device, the first vertical ring plate 311 is welded to the corresponding position on the inner cylinder 1, and the outer cylinder 2 on the first module 31 is welded to the rib plate 8 on the inner cylinder 1; the second module 32 is hoisted to the outside of the inner cylinder 1 by using a lifting device, the second horizontal plate 321 is welded to the first vertical ring plate 311, and the outer cylinder 2 of the second module 32 is welded to the rib plate 8; the above steps are repeated until all the first modules 31 and the second modules 32 are assembled. For the installation of the single-wave corrugated compensator module 4, a lifting lug is welded on the single-wave corrugated compensator module 4. In order to avoid deformation of the single-wave corrugated compensator module 4 during hoisting, the position of the lifting lug can be confirmed by simulation; the single-wave corrugated compensator module 4 is hoisted outside the inner tube 1, and the second vertical ring plate 41 is welded to the inner tube 1, and the outer tube 2 on the single-wave corrugated compensator module 4 is welded to the second vertical ring plate 41 of the adjacent single-wave corrugated compensator module 4. It should be noted that the outer tube 2 close to the single-wave corrugated compensator module 4 on the double-wave corrugated compensator module 3 adjacent to the single-wave corrugated compensator module 4 needs to be welded to the second vertical ring plate 41 of this single-wave corrugated compensator module 4.

[0124] Another embodiment of the present invention further provides a rear-end device of an engine ground simulation test bench. The structure of the rear-end device of the engine ground simulation test bench has been mentioned above, so it will not be repeated here. The rear-end device of the engine ground simulation test bench of this embodiment is manufactured using the above-mentioned method for manufacturing the rear-end device of the engine ground simulation test bench.

[0125] In the description of the present invention, it should be noted that the terms "upper", "lower", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0126] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be a connection between the inside of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. In addition, in the description of the present invention, unless otherwise specified, "plurality" means two or more.

[0127] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A method for manufacturing rear-end equipment of an engine ground simulation test bench, characterized in that: The rear-end equipment of the engine ground simulation test bench includes: an inner cylinder (1), an outer cylinder (2), a dual-wave waveform compensator module (3) and a single-wave waveform compensator module (4); the inner cylinder (1) is divided into a straight cylinder section, a first expansion section and a second expansion section along its axial direction; the dual-wave waveform compensator module (3) is arranged on the straight cylinder section and the first expansion section, the single-wave waveform compensator module (4) is arranged on the second expansion section, the outer cylinder (2) is arranged between two adjacent single-wave waveform compensator modules (4), between two adjacent dual-wave waveform compensator modules (3), and between adjacent single-wave waveform compensator modules (4) and dual-wave waveform compensator modules (3), and there are two outer cylinders (2) between two adjacent dual-wave waveform compensator modules (3), a rib plate (8) is arranged between the two outer cylinders (2), and the rib plate (8) is connected to the inner cylinder (1); The method for manufacturing the rear-end equipment of the engine ground simulation test bench comprises the following steps: Prefabricate a dual-wave corrugated compensator module (3), and weld an outer cylinder (2) on both sides of the dual-wave corrugated compensator module (3); Prefabricate a single-wave waveform compensator module (4), and weld an outer cylinder (2) to the single-wave waveform compensator module (4); All the dual-wave corrugated compensator modules (3) are welded to the straight tube section and the first expansion section in sequence, and the end of the outer tube (2) on each dual-wave corrugated compensator module (3) away from the dual-wave corrugated compensator module (3) is welded to the rib plate (8) of the inner tube (1); All the single-wave corrugated compensator modules (4) are welded to the second expansion section in sequence, and the end of the outer cylinder (2) on each single-wave corrugated compensator module (4) away from the single-wave corrugated compensator module (4) is welded to the adjacent single-wave corrugated compensator module (4).

2. The method for manufacturing the rear-end equipment of the engine ground simulation test bench according to claim 1, characterized in that: The inner cylinder (1) comprises a plurality of inner cylinder bodies connected in sequence; The method for manufacturing the rear-end equipment of the engine ground simulation test bench also includes the following steps: Cut out a plurality of strips according to the size of each inner cylinder, and pre-bend, roll and weld each strip to form the inner cylinder; Repeat the above steps until all inner cylinders are completed; The inner cylinder bodies are welded in sequence to obtain an inner cylinder (1), and rib plates (8) are welded to the straight cylinder section and the first expansion section of the inner cylinder (1).

3. The method for manufacturing the rear-end equipment of the engine ground simulation test bench according to claim 2, characterized in that: The dual-wave compensator module (3) is divided into a first module (31) and a second module (32), one end of the first module (31) is connected to the second module (32), and the end of the first module (31) away from the second module (32) and the end of the second module (32) away from the first module (31) are both provided with the outer cylinder (2); The first module (31) comprises a first vertical ring plate (311), a first horizontal plate (312), a first compensator (313), a first connecting plate (314), a first sealing plate (315), a first water baffle (316) and a first clamping plate (317); one end of the first vertical ring plate (311) is connected to the first horizontal plate (312), the first compensator (313) and the first connecting plate (314) in sequence, and the first sealing plate (315), the first water baffle (316) and the first clamping plate (317) are arranged on the first vertical ring plate (3 11) and the first connecting plate (314); the second module (32) includes a second horizontal plate (321), a second compensator (322), a second connecting plate (323), a second sealing plate (324), a second clamping plate (325) and a second water baffle (326); the second horizontal plate (321), the second compensator (322) and the second connecting plate (323) are connected in sequence, and the second water baffle (326), the second sealing plate (324) and the second clamping plate (325) are connected to the inner side of the second connecting plate (323); The steps of prefabricating the dual-wave corrugated compensator module (3) and welding the outer cylinder (2) on both sides of the dual-wave corrugated compensator module (3) include the following steps: Prefabricate the first module (31) and weld the outer cylinder (2) to the first module (31): Carving an orientation marking line on the first prefabricated platform according to the size of the first vertical ring plate (311); Placing the first vertical ring plate (311) on the first prefabricated platform, and adjusting the orientation of the first vertical ring plate (311) based on the orientation marking line; Carving an installation position line of the first horizontal plate (312) on the first vertical ring plate (311); Welding the first horizontal plate (312) onto the first vertical ring plate (311) based on the installation position line of the first horizontal plate (312); A first compensator (313) and a first connecting plate (314) are sequentially welded to an end of the first horizontal plate (312) away from the first vertical ring plate (311); A first water retaining plate (316), a first sealing plate (315) and a first clamping plate (317) are installed between the first connecting plate (314) and the first vertical ring plate (311), and a second sealing plate (324) and a second clamping plate (325) are installed on a side of the second vertical ring plate (41) facing away from the first connecting plate (314); Welding the outer cylinder (2) to the side of the first connecting plate (314) facing away from the first vertical ring plate (311); Repeat the above steps until the first modules (31) of all dual-waveform compensator modules (3) are prefabricated; Prefabricate the second module (32) and weld the outer cylinder (2) to the second module (32): carving an installation position line of the second horizontal plate (321) on the second prefabricated platform according to the size of the second horizontal plate (321); Welding a limit block on the outer edge of the installation position line of the second horizontal plate (321); Placing the second horizontal plate (321) in the space surrounded by the limiting blocks; Welding a supporting fixture of the second compensator (322) on the second prefabricated platform, and sequentially welding the second compensator (322) and the second connecting plate (323) on one end of the second horizontal plate (321); Installing a second water retaining plate (326) on the second connecting plate (323); Welding the outer cylinder (2) to the side of the second connecting plate (323) facing away from the second water retaining plate (326); Repeat the above steps until the second modules (32) of all the dual-waveform compensator modules (3) are prefabricated.

4. The method for manufacturing the rear-end equipment of the engine ground simulation test bench according to claim 3, characterized in that: The steps of installing the first water retaining plate (316), the first sealing plate (315) and the first clamping plate (317) between the first connecting plate (314) and the first vertical ring plate (311), and before installing the second sealing plate (324) and the second clamping plate (325) on the side of the second vertical ring plate (41) facing away from the first connecting plate (314), also include the step of detecting the welds generated during the prefabrication process.

5. The method for manufacturing the rear-end equipment of the engine ground simulation test bench according to claim 3, characterized in that: Before the second water retaining plate (326) is installed on the second connecting plate (323), the step further includes the step of detecting the welds produced during the prefabrication process.

6. The method for manufacturing the rear-end equipment of the engine ground simulation test bench according to claim 3, characterized in that: The steps of sequentially welding all the dual-wave corrugated compensator modules (3) to the straight tube section and the first expansion section, and welding the end of the outer tube (2) on each dual-wave corrugated compensator module (3) away from the dual-wave corrugated compensator module (3) to the rib plate (8) of the inner tube (1) include the following steps: Turning the first module (31) over, and putting the first module (31) outside the inner tube (1), so that the first vertical ring plate (311) contacts the outer wall of the inner tube (1), and welding the first vertical ring plate (311) and the inner tube (1); Welding one end of the outer cylinder (2) away from the first module (31) to the rib plate (8); The second module (32) is placed outside the outer cylinder (2), the second horizontal plate (321) and the first vertical ring plate (311) are welded, and the second water retaining plate (326) and the second clamping plate (325) are connected; Welding one end of the outer cylinder (2) away from the second module (32) to the rib plate (8); Repeat the above steps until all the first modules (31) and second modules (32) are installed.

7. The method for manufacturing the rear-end equipment of the engine ground simulation test bench according to claim 2, characterized in that: The single-wave waveform compensator module (4) comprises: a second vertical ring plate (41), a third horizontal plate (42), a third compensator (43), a third connecting plate (44), a third sealing plate (45) and a third water baffle (46); one end of the second vertical ring plate (41) is sequentially connected to the third horizontal plate (42), the third compensator (43) and the third connecting plate (44); the third sealing plate (45) and the third water baffle (46) are arranged between the second vertical ring plate (41) and the third connecting plate (44); The steps of prefabricating the single-wave waveform compensator module (4) and welding the outer cylinder (2) on the single-wave waveform compensator module (4) include the following steps: The second vertical ring plate (41), the third horizontal plate (42), the third compensator (43) and the third connecting plate (44) are all arranged in sections; Carving the outer dimension line of the second vertical ring plate (41) on the third prefabricated platform according to the dimension of the second vertical ring plate (41); Limiting plates are welded on both sides of the outer dimension line of the second vertical ring plate (41); Placing the sections of the second vertical ring plate (41) in sequence in the space surrounded by the limiting plates and docking them; Marking the installation position lines of the third horizontal plate (42) on each section of the second vertical ring plate (41); Placing each section of the third horizontal plate (42) on the corresponding plate of the second vertical ring plate (41) based on the installation position line of the third horizontal plate (42) and welding them; The respective sections of the third compensator (43) and the third connecting plate (44) are sequentially welded to one end of the corresponding third horizontal plate (42) away from the second vertical ring plate (41) to obtain a plurality of crescent sections; a "M"-shaped tooling platform is prefabricated, and the welded crescent sections are turned over and placed on the "M"-shaped tooling platform, and the crescent sections are butted and welded into a circle; A third water retaining plate (46) and a third sealing plate (45) are installed between the second vertical ring plate (41) and the third connecting plate (44); The outer cylinder (2) is welded to the side of the third connecting plate (44) facing away from the second vertical ring plate (41); Repeat the above steps until all the single-waveform compensator modules (4) are prefabricated.

8. The method for manufacturing the rear-end equipment of the engine ground simulation test bench according to claim 7, characterized in that: Before installing the third water retaining plate (46) and the third sealing plate (45) between the second vertical ring plate (41) and the third connecting plate (44), the step further includes the step of inspecting the welds produced during the prefabrication process.

9. The method for manufacturing the rear-end equipment of the engine ground simulation test bench according to claim 7, characterized in that: The steps of sequentially welding all the single-wave corrugated compensator modules (4) to the second expansion section, and welding the end of the outer cylinder (2) on each single-wave corrugated compensator module (4) away from the single-wave corrugated compensator module (4) to the adjacent single-wave corrugated compensator module (4) include the following steps: Welding a lifting lug on the single-wave compensator module (4); The single-wave compensator module (4) is hoisted to the outside of the inner tube (1) using a lifting device, and the second vertical ring plate (41) is welded to the inner tube (1).

10. A rear-end device for an engine ground simulation test bench, characterized in that: The engine ground simulation test bench rear-end equipment is manufactured using the manufacturing method according to any one of claims 1 to 9.

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