Rapid remodeling device and method for high-temperature and high-pressure air test

Abstract

The invention belongs to the technical field of high-temperature and high-pressure test equipment, and discloses a high-temperature and high-pressure air test rapid remodeling device which is arranged between an inlet pipeline and an outlet pipeline of a high-temperature and high-pressure air test and used for rapidly remodeling and fixing a pipeline assembly between the inlet pipeline and the outlet pipeline. Comprising a workbench, a sealing meshing assembly and an outlet sealing meshing assembly, the sealing meshing assembly and the outlet sealing meshing assembly are arranged at the two ends of the workbench respectively and directly face an inlet pipeline and an outlet pipeline, and a pipeline assembly is fixed between the sealing meshing assembly and the outlet sealing meshing assembly through a pipeline supporting assembly. The sealing occlusion assembly and the outlet sealing occlusion assembly are consistent in structure and function; according to the sealing meshing assembly, the clamping hoop assembly is installed outside a flange plate where the pipeline assembly is in butt joint with the inlet pipeline through a meshing structure, and sealing butt joint of the pipeline assembly and the inlet pipeline is achieved. The method can adapt to aviation multi-variety and small-batch characteristics, and the delivery cycle of products is guaranteed.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of high-temperature and high-pressure test equipment, and relates to a quick change device and method for simulating extreme working conditions of parts in an aviation and aircraft engine system, in particular to a device and method for quick change of high-temperature and high-pressure air test. BACKGROUND

[0002] With the serious development of the current international situation, the voice of intelligent manufacturing is getting higher and higher, and the implementation of automation and digitization instead of manual work to realize cost reduction, efficiency increase and quality improvement has become the development demand of every company.

[0003] In an airborne system, most high-temperature valve products need to be tested for life under simulated extreme conditions, the extreme conditions being temperature > 400 DEG C and pressure < 2 Mpa, to ensure product quality, but the test process is slow, and existing experimental equipment cannot meet the experimental needs of the company's products, and the product test waiting process has become a bottleneck for the company.

[0004] The traditional high-temperature and high-pressure test device, as shown in the drawing, adopts flange butt joint, uses multiple bolts for fastening and sealing, and needs to be cooled and depressurized when changing, the flange needs to be disassembled, the test equipment needs to be shut down and waiting for change, and the time consumption is as long as several hours, and in the high-temperature state, the bolts and screws may be stuck together, and the disassembly is more complicated. The equipment change efficiency is low, causing a large accumulation of products waiting for testing, which seriously affects the delivery cycle of the products. Figure 1

[0005] In view of this bottleneck problem, it is urgent to provide a solution that can quickly change the type after the product test is completed to realize the experimental process of the next piece. SUMMARY

[0006] In order to solve the above problems, the application provides a device and method for quick change of high-temperature and high-pressure air test, which can shorten the test waiting time of the product, reduce the labor intensity of the employees, reduce the energy loss in the energy rising and falling process in the test process, can meet the experimental waiting change of batch products, and ensure the delivery cycle of the products.

[0007] The technical scheme of the application is as follows: ​The device for rapid change of high-temperature and high-pressure air test is arranged between the inlet pipeline and the outlet pipeline of the high-temperature and high-pressure air test, and is used for rapid change and fixation of the pipeline assembly between the inlet pipeline and the outlet pipeline, comprising a workbench, a sealing bite assembly, an outlet sealing bite assembly, the sealing bite assembly and the outlet sealing bite assembly are arranged at two ends of the workbench and face the inlet pipeline and the outlet pipeline respectively, the pipeline assembly is fixed between the sealing bite assembly and the outlet sealing bite assembly through a pipeline support assembly, and the sealing bite assembly and the outlet sealing bite assembly are consistent in structure and function; the sealing bite assembly installs the clamp assembly outside the flange plate of the pipeline assembly and the inlet pipeline through the bite structure, so as to realize the sealing butt joint of the pipeline assembly and the inlet pipeline.

[0008] Further, the flange plates on both sides of the butt joint are inclined conical surfaces after the pipeline assembly is butt jointed with the inlet pipeline and the outlet pipeline; the bite surface of the clamp assembly is an inner conical surface matched with the inclined conical surface.

[0009] Further, the device further comprises left-right moving assemblies and horizontal displacement assemblies, the pipeline support assembly can adjust the support height, and the axial, horizontal and longitudinal positions of the pipeline assembly are adjusted through the left-right moving assemblies, the horizontal displacement assemblies and the pipeline support assembly.

[0010] Further, the device further comprises fan assemblies and device moving assemblies; the slide rails are arranged on the ground, the workbench moves on the slide rails perpendicularly to the inlet pipeline and the outlet pipeline through the device moving assemblies; the fan assemblies are arranged at two ends of the workbench, and are specifically arranged at one side of the sealing bite assembly and the outlet sealing bite assembly in the horizontal direction, and are used for providing air blowing to the pipeline assembly moved through the horizontal displacement assemblies.

[0011] Further, the sealing bite assembly comprises a clamp seat, clamp moving guide rail assemblies, a lower clamp connecting plate, a fixed pipe clamp assembly, a lead screw nut structure and an upper clamp connecting plate, the fixed pipe clamp assembly is arranged on the ground through the clamp seat, and the fixed pipe clamp assembly fixes the inlet pipeline; the clamp moving guide rail assemblies comprise two guide rails vertically arranged on the table top of the workbench, the lower clamp connecting plate and the upper clamp connecting plate are movably arranged between the two guide rails, the lower clamp connecting plate is arranged below the upper clamp connecting plate, the lead screw nut structure is arranged between the lower clamp connecting plate and the upper clamp connecting plate, an interface for installing the lower clamp is arranged above the lower clamp connecting plate, and an interface for installing the upper clamp is arranged below the upper clamp connecting plate.

[0012] Further, the lead screw nut structure is driven through a servo motor sleeve.

[0013] Further, at least two corrugated pipes are arranged in the pipeline assembly.

[0014] A method for rapid change of high-temperature and high-pressure air test, using the device for rapid change of high-temperature and high-pressure air test, comprising the following steps: S1, install the pipeline assembly on the quick changeover device; S2, after setting the pipeline parameters, start the device, and the device automatically moves between the inlet pipeline and the outlet pipeline; S3, the pipeline assembly is butted against the respective flanges between the inlet pipeline and the outlet pipeline, and the sealing bite assembly and the outlet sealing bite assembly automatically fasten the clamp assembly on the butted flanges; S4, the device sends a prompt that the test can be performed; S5, after the test is completed, the sealing bite assembly and the outlet sealing bite assembly are opened at the same time, and then the pipeline assembly that has completed the test is moved to the next station; at this time, the next pipeline assembly to be tested is moved between the inlet pipeline and the outlet pipeline and butted against the respective flanges; S6, repeat S4-S5 until all the pipeline assemblies complete the test.

[0015] Technical effects of the present application: 1. The present application can adapt to the characteristics of multiple varieties and small batch of aviation products, standardize the pipeline in the test stage, realize automatic changeover here, solve the dangerous situation of operation under high temperature and high pressure, reduce the labor intensity of employees, shorten the test waiting time of products, and ensure the delivery cycle of products.

[0016] 2. The present application adopts an automatic changeover mode, the equipment does not need to wait for a long time to cool down, and the product can be directly changed over, thereby reducing the energy loss of repeated heating.

[0017] 3. The present application adopts a standardized operation mode, one person operates multiple machines on site, solves the bottleneck difficulty of products, further plans the production line mode of such products, further improves the degree of automatic operation of products, and promotes the pace of intelligent manufacturing. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments of the present application. Obviously, the drawings described below are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor on the basis of these drawings.

[0019] Figure 1 It is a schematic view of the combination of the inlet pipeline or the outlet pipeline in the background art and the pipeline assembly.

[0020] Figure 2 It is a structure diagram of the device of the present application.

[0021] Wherein: 1 sealing bite assembly, 2 pipeline support assembly, 3 transverse displacement assembly, 4 pipeline assembly, 5 outlet sealing bite assembly, 6 left and right movement assembly, 7 device movement assembly, 8 fan assembly Figure 3 It is a schematic view of the sealing bite assembly.

[0022] Figure 4 It is a specific schematic view of Figure 1 .

[0023] Wherein 1-1 clamp seat, 1-2 clamp moving guide rail seat, 1-3 lower clamp connecting plate, 1-4 front and rear connecting plate, 1-5 fixed tube upper clamp, 1-6 screw nut fixing seat, 1-7 screw nut, 1-8 T type screw, 1-9 BK bearing seat, 1-10 coupling, 1-11 motor fixing seat, 1-12 servo motor set, 1-13 upper clamp connecting plate, 1-14 upper clamp, 1-15 guide rail, 1-16 fixed tube support plate, 1-17 sliding block, 1-18 lower clamp. DETAILED DESCRIPTION

[0024] This part is the embodiment of the present application, which is used to explain and illustrate the technical scheme of the present application. In the case of no conflict, the embodiments of the present application and the features in the embodiments can be combined with each other.

[0025] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship as given in the drawings, which are only for the purpose of facilitating the description of the present application and simplifying the description, and are not intended to indicate or imply that the device or the case referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second" and the like are only for the purpose of description and cannot be understood as indicating or implying relative importance or implying the number of the technical features indicated. Therefore, the features defined with "first", "second" and the like can explicitly or implicitly include more features. In the description of the present application, unless otherwise specified, the meaning of "a plurality of" is two or more.

[0026] In the description of the present application, it should be noted that unless otherwise specified and limited, the terms "mounting", "connection", "connection" should be interpreted broadly, for example, it can be fixed connection, or detachable connection or integrated connection, it can be mechanical connection, or point connection, it can be direct connection, or indirect connection through intermediate medium, it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0027] Embodiment 1 A device for rapid change of high-temperature and high-pressure air test, which is arranged between the inlet pipeline and the outlet pipeline of the high-temperature and high-pressure air test, is used for rapid change and fixation of the pipeline assembly 4 between the inlet pipeline and the outlet pipeline, and comprises a workbench, a sealing bite assembly 1 and an outlet sealing bite assembly 5. The sealing bite assembly 1 and the outlet sealing bite assembly 5 are respectively arranged at two ends of the workbench opposite to the inlet pipeline and the outlet pipeline. The pipeline assembly 4 is fixed between the sealing bite assembly 1 and the outlet sealing bite assembly 5 through a pipeline support assembly 2. The sealing bite assembly 1 and the outlet sealing bite assembly 5 are consistent in structure and function. The sealing bite assembly 1 installs a clamp assembly outside the flange plate of the pipeline assembly 4 and the inlet pipeline through a bite structure, so as to realize the sealed butt joint of the pipeline assembly 4 and the inlet pipeline.

[0028] After the pipeline assembly 4 is butt jointed with the inlet pipeline and the outlet pipeline, the flange plates on both sides of the butt joint are inclined conical surfaces. The bite surface of the clamp assembly is an inner conical surface matched with the inclined conical surface.

[0029] The device further comprises a left-right moving assembly 6 and a transverse displacement assembly 3. The pipeline support assembly 2 can adjust the support height, and the axial, transverse and longitudinal positions of the pipeline assembly 4 are adjusted through the left-right moving assembly 6, the transverse displacement assembly 3 and the pipeline support assembly 2.

[0030] The device further comprises a fan assembly 8 and a device moving assembly 7. A slide rail is arranged on the ground. The workbench moves on the slide rail perpendicularly to the inlet pipeline and the outlet pipeline through the device moving assembly 7. The fan assembly is arranged at two ends of the workbench, specifically at one side of the sealing bite assembly 1 and the outlet sealing bite assembly 5 in the transverse direction, and is used for providing air blowing to the pipeline assembly 4 moved through the transverse displacement assembly 3.

[0031] The sealing bite assembly 1 comprises a clamp seat 1-1, a clamp moving guide rail assembly, a lower clamp connecting plate 1-3, a fixed pipe clamp assembly, a lead screw nut structure and an upper clamp connecting plate 1-13. The fixed pipe clamp assembly is arranged on the ground through the clamp seat 1-1, and the fixed pipe clamp assembly fixes the inlet pipeline. The clamp moving guide rail assembly comprises two guide rails 1-15 vertically arranged on the table top of the workbench. The lower clamp connecting plate 1-3 and the upper clamp connecting plate 1-13 are movably arranged between the two guide rails 1-15. The lower clamp connecting plate 1-3 is arranged below the upper clamp connecting plate 1-13. The lead screw nut structure is arranged between the lower clamp connecting plate 1-3 and the upper clamp connecting plate 1-13. An interface for installing a lower clamp 1-18 is arranged above the lower clamp connecting plate 1-3. An interface for installing an upper clamp 1-14 is arranged below the upper clamp connecting plate 1-13.

[0032] The lead screw nut structure is driven by a servo motor cover 1-12.

[0033] At least two corrugated pipes are arranged in the pipeline assembly 4.

[0034] A method for rapid change of high-temperature and high-pressure air test, using the aforementioned high-temperature and high-pressure air test rapid change device, comprising the following steps: S1, install the pipeline assembly on the rapid change device; S2, after setting the pipeline parameters, start the device, and the device automatically moves between the inlet pipeline and the outlet pipeline; S3, the pipeline assembly is connected to the inlet pipeline and the outlet pipeline through the respective flanges, and the sealing engagement assembly and the outlet sealing engagement assembly automatically fasten the clamp assembly on the flanges after the connection; S4, the device sends a prompt that the test can be performed; S5, after the test is completed, the sealing engagement assembly and the outlet sealing engagement assembly are opened at the same time, and then the pipeline assembly that has completed the test is moved to the next station; at this time, the next pipeline assembly to be tested is moved between the inlet pipeline and the outlet pipeline and connected through the respective flanges; S6, repeat S4-S5 until all pipeline assemblies complete the test.

[0035] Example 2: Figure 2 is an embodiment of a high-temperature and high-pressure air test rapid change device according to an embodiment of the present application.

[0036] 6 The left-right moving assembly is fixed on the rack and connected through the guide rail to realize left-right movement. 1 The sealing engagement assembly is connected to the left-right moving assembly through screws, and 5 the outlet sealing engagement assembly is connected to the left-right moving assembly through the slide rail to realize left-right movement, and 3 the transverse displacement assembly is connected to the left-right moving assembly through the slide rail to realize left-right movement.

[0037] The sealing bite assembly is composed of 1-1 clamp seat, 1-2 clamp movable guide rail seat, 1-3 lower clamp connecting plate, 1-4 front and rear connecting plate, 1-5 fixed pipe upper clamp, 1-6 screw nut fixing seat, 1-7 screw nut, 1-8 T-shaped screw, 1-9 BK bearing seat, 1-10 shaft coupling, 1-11 motor fixing seat, 1-12 servo motor set, 1-13 upper clamp connecting plate, 1-14 upper clamp, 1-15 guide rail, 1-16 fixed pipe support plate, 1-17 sliding block and 1-18 lower clamp, wherein the 1-1 clamp seat, the 1-5 fixed pipe upper clamp and the 1-16 fixed pipe support plate are fixed test inlet pipe lines, the 1-2 clamp movable guide rail seat is a support for the rest parts, the 1-3 lower clamp connecting plate is connected with the 1-13 upper clamp connecting plate and the sliding block, and the 1-12 servo motor set is connected to the 1-2 clamp movable guide rail seat through the 1-11 motor fixing seat. The servo motor drives the 1-8 T-shaped screw to rotate through the 1-10 shaft coupling, and the screw rotation drives the 1-6 screw nut fixing seat to move to the middle.

[0038] The 1-14 upper clamp is hung on the 1-13 upper clamp connecting plate through a screw and can swing slightly, and the 1-18 lower clamp is placed on the 1-3 lower clamp connecting plate through two screws, and the three screws are not in the state of being screwed, so as to ensure the flexible movement of the clamp.

[0039] In combination with field practice, the change type pipeline is standardized, a non-standard change type device is designed and manufactured, and the staff only needs to change the type outside the machine, the equipment can identify the new product and automatically change the type, the waiting process for cooling and cooling of the equipment is avoided, the change type speed can be controlled within 5 minutes, the operation time of the equipment is improved, and the labor intensity of the staff is reduced. Figure 2 .

[0040] By adopting the automatic change type device, the staff only needs to assemble another product with the clamp during the product test, the equipment does not need to be stopped and waited, the two products are shifted and changed when the type is changed, the automatic change type of the product is realized, the working time of the staff in the high temperature state is reduced, the standard operation is reduced, the risk of scalding of the staff operating the equipment is reduced, the labor intensity of the staff is reduced, and the stability of the product test is ensured.

[0041] The key point 1 of the present application is to change the connection mode of the product flange butt joint screw fastening into a bite device of a conical surface seal, the conical surface can ensure the self-adaptive alignment of the two pipeline flanges, and the clamp for the flange seal is controlled in a double T-shaped screw torque mode, so that the stability of the force on both sides of the clamp is ensured. The T-shaped screw can keep the self-locking of the pipeline and ensure the sealing property of the pipeline. Details are shown in the attached Figure 3 .

[0042] The key point 2 of the application is to apply two corrugated pipes in the whole test pipeline, so as to absorb the actuating force exerted by the clamp on the pipeline during the sealing process after the deformation of the pipeline, and avoid the damage of the actuating force to the product.

[0043] The change type process is as follows: the operator combines the product with the corresponding pipeline clamp, places it on the change type device, starts the change type on the operation interface, moves the corresponding product to the test station, connects the inlet end of the test pipeline with the flange of the pipeline outside the equipment, clamps the flange with the clamp, and positions the clamp and the flange with a conical surface. When the torque mode reaches, the outlet end of the test pipeline is connected with the flange of the pipeline outside the equipment, and the outlet end clamp is clamped again. When the torque on both sides meets the demand, the yellow light prompts that the high temperature and high pressure test can be carried out. When the test is completed, the two clamps can be automatically separated, the two ends of the test pipeline can be automatically separated, and the change type device can be automatically changed.

[0044] The device operation process steps are as follows: 1. The employee makes the preliminary production preparation, installs the product and the corresponding pipeline assembly, and places it on the 2# support assembly, as shown in the 4# pipeline assembly.

[0045] 2. After setting the parameters, click the start button, and the device will automatically change and seal subsequently. The 3# horizontal displacement assembly drives the pipeline assembly to move to the test position.

[0046] 3. The 6# left and right displacement assembly drives the pipeline assembly to be connected with the test pipeline. The 1-8# T-shaped lead screw (centering type) rotates to drive the 1-14# upper clamp and the 1-18# lower clamp to move to the middle. Because the pipeline flange and the clamp are ring conical surfaces, they can be quickly positioned. The 1-12# motor is in torque mode, and the feedback rotation torque reaches 20N·M. Then the two motors stop to ensure that the clamps on both sides are tightly locked.

[0047] 4. The 6# left and right displacement assembly drives the 5# outlet sealing clamping assembly to move inward, so that the pipeline assembly is connected with the total outlet. Then the operation of step 3 is repeated to lock and seal the outlet clamp and the outlet flange.

[0048] 5. When the locking and sealing on both sides are completed, the prompt light displays yellow, prompting the employee to perform the test.

[0049] 6. When the test is completed, the 1# sealing clamping assembly and the 5# outlet sealing clamping assembly are opened at the same time. When moving to the initial position, the 6# left and right displacement assembly drives the test pipeline to move, and the 5# outlet sealing clamping assembly moves at the same time. At this time, the test pipeline assembly is not in contact with the sealing flanges on both sides, and waits for the change type operation.

[0050] 7, the sensor in the 6# assembly detects that another station has a pipeline assembly ready, and can automatically switch to the next piece. The 3# transverse displacement assembly moves another pipeline assembly to the test position.

[0051] 8, repeat the change type process to quickly change type, save the equipment downtime waiting time.

[0052] Working principle of core components 1, 1-8 # T-shaped lead screw (centering type) forward and reverse lead screw, when the 1-14 # upper clamp and the 1-18 # lower clamp move to the middle. The centering position remains unchanged.

[0053] 2, during the sealing process, 1-8 # T-shaped lead screw rotates at the same time, when the torque on one side reaches, the other side continues to move to the specified torque, and keeps both sides engaged. When loosening, the side with deeper clamp pressure needs to be moved to the same height first, and then both sides of the lead screw rotate at the same time to drive the clamp to disengage.

[0054] 3, 1-14 # upper clamp and 1-18 # lower clamp, 1-13 # upper clamp connecting plate and 1-3 # lower clamp connecting plate are connected by screws, and the clamp can slightly swing on the connecting plate, which can adapt to the deformation of the product pipeline.

[0055] 4, the front section of 4# pipeline assembly adopts corrugated pipe, in order to prevent the damage of the torsional force during the sealing process of the clamp to the product after the deformation of the pipeline, the corrugated pipe can absorb this part of the torsional force, and try to keep the external factors during the product test process.

[0056] 5, the tail end of 5# outlet sealing engagement assembly adopts corrugated pipe, which is to widen the distance between the outlet and the inlet of the whole test pipeline during the change type process, so that the test pipeline flange is separated from the sealing surface.

[0057] 6, 1-15 # guide rail, 1-17 # slide block distribute 1 # sealing engagement assembly on both sides, because the motor adopts 1:20 reducer, the torque required during engagement is 20N·M, the force is large, the clamp of this device is eccentric structure, so the fixed plate is installed on the other side of the clamp, to ensure the overall rigidity and durability of 1 # sealing engagement assembly.

[0058] Technical Benefits: This system transforms the traditional end-face flange connection mode into an automated changeover mode. Employees only need to perform the changeover externally; the equipment can automatically recognize new products and perform the changeover. This device uses a double-screw (forward and reverse T-type) mechanism to drive the clamps to tighten and seal the pipeline flanges. The double-screw mechanism provides torque mode control, ensuring a tight fit between the clamps and the pipeline on both sides. The T-type screw maintains the pipeline's self-locking, ensuring its sealing performance. After the thermal test, the screw drives the lateral displacement component to automatically change the flange and repeat the sealing process. The changeover process is fully automated, reducing the time personnel spend working in high-temperature conditions, standardizing operations, and reducing the risk of burns to employees operating the equipment. While reducing the labor intensity of employees, it also ensures the stability of product testing.

[0059] After on-site testing, the changeover time was reduced from 2 hours of downtime for cooling, disassembly, and installation to 5 minutes. The changeover time was significantly shortened.

[0060] Example 3: The following are the rapid model changeover procedures for radiators during high-temperature and high-pressure testing: This quick changeover device is a standardized module solution designed to save changeover waiting time under high temperature and high pressure conditions. A similar solution is also used for radiators of aerospace products. Due to the large size and weight of the radiators and the difficulty in moving them, the following solution can be used for quick changeover of the device.

[0061] Implementation Plan: The No. 1 sealing engagement component and the No. 5 outlet sealing engagement component are fixed on both sides as a fixed sealing device. A logistics vehicle is used for manual transfer and replacement in the middle. Two or more logistics vehicles are used as a replacement platform. Loading, unloading, and replacement of the product are all carried out on the logistics vehicle. The radiator and piping assembly are used as a test assembly to achieve off-machine replacement, shortening the waiting time for the replacement device.

[0062] 1. Employees prepare for production by installing the product and corresponding pipeline components on the logistics vehicle and then manually pushing it to the test position, at which point the pipeline component inlet is connected to the inlet flange.

[0063] 2. After setting the parameters, click the start button. The equipment will then perform automated changeover and sealing.

[0064] 3. Component #1 directly drives the clamp to lock, sealing the inlet of the experimental pipeline and ensuring that both sides of the clamp are tightly locked.

[0065] Components 4 and 5 drive the bellows flange to connect with the outlet of the experimental pipeline and tighten and seal it.

[0066] 5. After the experiment is completed, the components on both sides are opened, allowing the clamp to return to its initial position, and component #5 moves the bellows away.

[0067] 6、Employee will push logistics car, and push the next logistics car repeat the above action for test.

[0068] A method for rapid change of high temperature and high pressure air test The double screw rod (forward and reverse T type) mechanism is used to push the clamp to tighten and seal the pipeline flange. The clamp and the double screw rod mechanism are connected by floating connection. The clamp can adjust and adapt to the sealing surface of the pipeline to ensure the sealing condition. The double screw rod mechanism is controlled by torque mode to ensure the tight engagement of the clamp on both sides of the pipeline. The T type screw rod can keep the pipeline self-locking to ensure the sealing of the pipeline.

[0069] The test pipeline is standardized for control. The inlet and outlet of the test equipment, the shape of the sealed flange, and the length of the pipeline of the change device are fixed to ensure the consistency of the sealed position of the pipeline and the standardized action.

[0070] Two sections of corrugated pipes are used in the entire test pipeline to absorb the actuating force applied by the clamp during the sealing process after the deformation of the pipeline, avoiding damage to the product by this actuating force.

[0071] This change adopts a double-layer guide rail moving method. After the test is completed, the end corrugated pipe is compressed by the cylinder, and the changed pipeline section is first separated from the inlet section of the device, and then the last cylinder is pulled again to separate the outlet end of the device, realizing the independence of the test pipeline section.

[0072] The front section of the test pipeline section is supported by a spring support device, which adapts to the support height of different pipelines and prepositions the pipeline to ensure the consistency of the position of the front section of the test pipeline and the standardized pipeline position.

[0073] This device adopts a two-station mechanism, which uses a servo motor to drive a set of ball screws to move horizontally and change between the two stations.

[0074] This device uses 2Cr25Ni20 material with good heat resistance as the support and positioning part during the test process to avoid the influence of device deformation on the stability of the device.

[0075] Steel wire winding pads are used between the two pipeline flanges for sealing, which improves the durability of the sealing pad and the wear resistance of the change process.

[0076] The clamp and the pipeline use double-sided 38° sealing cone surfaces for sealing and tightening, which can also be quickly opened and separated This device increases the ground rail and uses rail type wheel support. The servo motor drives the gear rack to realize the horizontal displacement of the device, which provides space for the experiment of non-standard equipment and can quickly restore the standard test state.

[0077] External touch screen box for easy human-computer interaction, and according to different products, parameters can be retrieved and imported with one key.

[0078] This device adds two-station fans to blow air from each other, which accelerates the cooling of the pipeline after the test process and further shortens the cooling waiting time of the pipeline.

[0079] Infrared sensors are installed below the two workstations. Based on the duration of detection, the sensors can automatically identify whether a product needs to be tested with a new experimental device, thus enabling automatic testing and replacement of the next product.

[0080] The tightening of the two lead screws is controlled by a servo motor in torque mode, with a 1:20 reducer added, achieving a meshing torque of 20 N·m. This ensures airtightness. This device adds a workstation light indicator function, which can distinguish the test status according to the color of the workstation light, including not tested, under test, test cooling, and ready for replacement.

[0081] The above description is merely a specific embodiment of the present invention, providing a detailed description of the invention. Parts not covered herein are conventional techniques. However, the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in the present invention should be included within the scope of protection of the present invention. The scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A device for rapid type change in high-temperature and high-pressure air testing, characterized in that, Located between the inlet and outlet pipelines of the high-temperature and high-pressure air test, this assembly (4) is used for quick replacement and fixation of the pipeline between the inlet and outlet pipelines. It includes a workbench, a sealing engagement assembly (1), and an outlet sealing engagement assembly (5). The sealing engagement assembly (1) and the outlet sealing engagement assembly (5) are respectively located at both ends of the workbench, facing the inlet and outlet pipelines. The pipeline assembly (4) is fixed between the sealing engagement assembly (1) and the outlet sealing engagement assembly (5) through the pipeline support assembly (2). The sealing engagement assembly (1) and the outlet sealing engagement assembly (5) have the same structure and function. The sealing engagement assembly (1) installs the clamp assembly outside the flange where the pipeline assembly (4) connects with the inlet pipeline through the engagement structure, thereby achieving a sealed connection between the pipeline assembly (4) and the inlet pipeline.

2. The device for rapid changeover in high-temperature and high-pressure air testing according to claim 1, characterized in that, After the pipeline assembly (4) is connected to the inlet pipeline and the outlet pipeline, both sides of the flange are inclined conical surfaces; the meshing surface of the clamp assembly is the inner conical surface that matches the inclined conical surface.

3. The device for rapid changeover in high-temperature and high-pressure air testing according to claim 1, characterized in that, It also includes a left-right moving component (6), a lateral shifting component (3), and a pipe support component (2) that can adjust the support height. The axial, lateral and longitudinal positions of the pipe component (4) can be adjusted by the left-right moving component (6), the lateral shifting component (3) and the pipe support component (2).

4. The device for rapid changeover in high-temperature and high-pressure air testing according to claim 3, characterized in that, It also includes a fan assembly (8) and a device moving assembly (7); a slide rail is provided on the ground, and the worktable moves on the slide rail perpendicular to the inlet pipe and the outlet pipe through the device moving assembly (7); the fan assembly is located at both ends of the worktable, specifically on the lateral side of the sealing engagement assembly (1) and the outlet sealing engagement assembly (5), and is used to provide air blowing to the pipe assembly (4) that moves through the lateral displacement assembly (3).

5. The device for rapid changeover in high-temperature and high-pressure air testing according to claim 1, characterized in that, The sealing engagement assembly (1) includes a clamp seat (1-1), a clamp moving guide rail assembly, a lower clamp connecting plate (1-3), a fixed pipe clamp assembly, a screw nut structure, and an upper clamp connecting plate (1-13). The fixed pipe clamp assembly is mounted on the ground via the clamp seat (1-1) and fixes the inlet pipe. The clamp moving guide rail assembly includes two guide rails (1-15) vertically mounted on the workbench surface, a lower clamp connecting plate (1-3), and an upper clamp connecting plate (1-13). Plates (1-13) are both movable up and down between two guide rails (1-15). The lower clamp connecting plate (1-3) is located below the upper clamp connecting plate (1-13). The lower clamp connecting plate (1-3) is located between the upper clamp connecting plate (1-13) and has a screw and nut structure. The lower clamp connecting plate (1-3) has an interface for installing the lower clamp (1-18) above it, and the upper clamp connecting plate (1-13) has an interface for installing the upper clamp (1-14) below it.

6. The device for rapid changeover in high-temperature and high-pressure air testing according to claim 5, characterized in that, The lead screw and nut structure is driven by a servo motor kit (1-12).

7. The device for rapid changeover in high-temperature and high-pressure air testing according to claim 1, characterized in that, The piping assembly (4) contains at least two corrugated pipe sections.

8. A method for rapid changeover in high-temperature and high-pressure air testing, using the apparatus for rapid changeover in high-temperature and high-pressure air testing as described in any one of claims 1-7, characterized in that, Includes the following steps: S1, Install the piping assembly onto the quick-change device; S2, after setting the pipeline parameters, start the device, and the device will automatically move between the inlet pipeline and the outlet pipeline; S3, the pipeline assembly is connected to the inlet pipeline and the outlet pipeline through their respective flanges, and the sealing engagement assembly and the outlet sealing engagement assembly automatically fasten the clamp assembly to the flanges after connection. S4, the device issues a prompt that the experiment can proceed; S5, after the test is completed, the sealing engagement assembly and the outlet sealing engagement assembly are opened simultaneously, and then the pipeline assembly that has completed the test is moved to the next station; at this time, the next pipeline assembly to be tested is moved between the inlet pipeline and the outlet pipeline and connected through their respective flanges; S6. Repeat S4~S5 until all piping components have completed the test.

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