Integrated vacuum pump testing method and testing device

Abstract

The application relates to an integrated vacuum pump testing method and testing device, and relates to the technical field of vacuum pumps, and comprises the following steps: controlling a water inlet pipe ball valve and a water return pipe ball valve to be opened, and collecting a water pipe flow value; when the water pipe flow value is consistent with a reference flow value, controlling a power supply start button to be opened, and controlling a curve data collection device to collect a limit vacuum degree of a buffer tank in an empty state; when the limit vacuum degree reaches a planned vacuum degree, installing a test orifice plate with an initial aperture at an air inlet position of the buffer tank, and adjusting the aperture of the test orifice plate in different ways, controlling the curve data collection device to collect a vacuum pumping speed and working basic parameters of the measured pump; based on the vacuum pumping speed, the curve data collection device generates a pumping speed change curve, based on the working basic parameters, the basic parameter change curve is generated, and the pumping speed change curve and the basic parameter change curve are output. The application has the effect of improving the testing efficiency of the vacuum pump.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of vacuum pumps, in particular to an integrated vacuum pump testing method and testing device. BACKGROUND

[0002] An integrated vacuum pump is a highly integrated vacuum generating device that combines a vacuum pump with a motor, control system or other functional components. Through compact design, multiple functional modules are integrated into one body to improve efficiency, simplify installation and optimize performance.

[0003] After production, a vacuum pump needs to be tested and calibrated before it can be shipped. The testing process of the vacuum pump is usually performed manually. During the operation of the vacuum pump, the tester manually records the current parameters of the vacuum pump every certain time or when a certain parameter is reached. After completing the test, the tester collates all the parameters and forms various parameter curves. The above-mentioned testing process of the vacuum pump is performed manually, which is low in efficiency. SUMMARY

[0004] In order to improve the testing efficiency of the vacuum pump, the present application provides an integrated vacuum pump testing method and testing device.

[0005] In a first aspect, the present application provides an integrated vacuum pump testing method, which adopts the following technical solution:

[0006] An integrated vacuum pump testing method, comprising:

[0007] S1: controlling a preset water inlet pipe ball valve and a preset water return pipe ball valve to open, and collecting a water pipe flow value;

[0008] S2: when the water pipe flow value is consistent with a preset reference flow value, controlling a preset power supply start button to open, and controlling a preset curve data collection device to collect a limit vacuum degree of a preset buffer tank in an idle state;

[0009] S3: when the limit vacuum degree reaches a preset planning vacuum degree, installing a test orifice plate with a preset initial orifice diameter at a preset buffer tank air inlet position, and controlling the curve data collection device to collect an initial vacuum pumping speed and working basic parameters of the measured pump, the working basic parameters including working temperature and working pressure;

[0010] S4: continuously adjusting the initial orifice diameter based on a preset orifice diameter variation to obtain a continuously adjusted orifice diameter value;

[0011] S5: switching the test orifice plate with the continuously adjusted orifice diameter value, and controlling the curve data collection device to collect an adjusted working pumping speed and adjusted working basic parameters;

[0012] S6: controlling the curve data acquisition device to generate a variation curve of the pumping speed based on the initial vacuum pumping speed and the adjusted working pumping speed, generating a variation curve of the basic parameter based on the working basic parameter and the adjusted working basic parameter, and outputting the variation curve of the pumping speed and the variation curve of the basic parameter.

[0013] By adopting the technical scheme, after the cooling water is introduced, the system tests the measured pump in an idle state to determine whether the limit vacuum degree of the measured pump can reach the planned vacuum degree, and then switches different aperture test orifice plates to test the pumping speed of the measured pump when different aperture air inlets are used. In this process, the curve data acquisition device automatically collects parameter data through the sensors installed on the equipment and automatically generates a data curve, which is more efficient than manual testing.

[0014] Optionally, the basic parameter variation curve includes a temperature curve, and when the temperature is abnormal, the abnormal cause analysis method includes:

[0015] S60: analyzing the temperature curve in the basic parameter variation curve to determine a temperature rising section and a temperature balance section;

[0016] S61: determining a temperature high point average value based on the temperature curve and the temperature balance section;

[0017] S62: when the temperature high point average value is greater than a preset reference temperature value, controlling the water inlet pipe ball valve and the water return pipe ball valve to be closed, and collecting a water pipe pressure state and an inner cavity humidity;

[0018] S63: when the water pipe pressure state is consistent with a preset reference descending state, continuing to determine whether the inner cavity humidity is greater than a preset reference operation humidity;

[0019] S631: when the inner cavity humidity is greater than the reference operation humidity, defining as inner cavity water seepage, processing the water seepage by a preset inner cavity water seepage processing method and drying the inner cavity of the equipment;

[0020] S632: when the inner cavity humidity is not greater than the reference operation humidity, defining as outer pipe leakage, repairing the outer pipe by a preset pipe leakage processing method.

[0021] Optionally, the inner cavity water seepage processing method includes:

[0022] S63100: collecting pipe image information;

[0023] S63101: determining a pipe inclination based on the pipe image information;

[0024] S63102: When the inclination of the pipeline is not 0, collect the moisture content at the joint of the pipeline near the pump body.

[0025] S63103: When the humidity at the joint is greater than the preset reference air humidity, the preset drying mechanism is controlled to dry the joint at the end of the pipe near the pump body along the circumference, and the dried area is marked as the water-blocking area.

[0026] S63104: Match the preset inner diameter of the water-blocking ring based on the preset pipe diameter;

[0027] S63105: Tighten the water-blocking ring of the inner diameter to the water-blocking point, and control the preset spraying mechanism to spray waterproof adhesive circumferentially along the contact point between the water-blocking ring and the pipe.

[0028] Optional, also includes:

[0029] S63106: The blowing power of the blowing mechanism is matched based on the humidity of the inner cavity;

[0030] S63107: Close the air outlet of the pump under test, and control the blowing mechanism to blow air into the inner cavity from the air inlet of the buffer tank with the blowing power and the preset vertical blowing angle;

[0031] S63108: After a preset blowing time, open the air outlet of the pump under test to discharge the humid air, and correct the vertical blowing angle to a preset tilt blowing angle.

[0032] S63109: Control the blowing mechanism to blow air into the inner cavity from the air inlet of the buffer tank at the tilted blowing angle to form a spiral wind in the inner cavity.

[0033] Optional, also includes:

[0034] S63110: Match boiling point vacuum degree based on the reference temperature value;

[0035] S63111: Start the vacuum pump and collect the internal temperature value when the vacuum level inside the vacuum pump reaches the boiling point vacuum level;

[0036] S63112: When the internal cavity temperature reaches the reference temperature, after a preset waiting time, the blowing mechanism is controlled to blow air into the internal cavity from the air inlet of the buffer tank.

[0037] Optionally, the method for handling pipe leaks includes:

[0038] S6320: Collects ground image information below the pipeline;

[0039] S6321: determining water droplet falling position from the ground image information, and collecting water droplet falling image based on the water droplet falling position interval high speed;

[0040] S6322: determining water droplet initial falling speed based on the water droplet falling image;

[0041] S6323: determining pipe leakage position based on the initial falling speed, the pipe inclination and preset water droplet flowing model.

[0042] Optionally, further comprising:

[0043] S6324: determining leakage position type based on the pipe image information and the pipe leakage position, the leakage position type including pipe surface leakage and pipe joint position leakage;

[0044] S63241: based on pipe joint position leakage, determining lifting position according to the pipe leakage position and preset offset distance;

[0045] S632411: controlling preset lifting mechanism to lift pipe at the lifting position with preset initial lifting force, and increasing the initial lifting force with preset lifting force increment, and determining whether pipe leaks based on the ground image information;

[0046] S63242: when pipe does not leak, recording correction lifting force, and controlling preset hook to lift and fix pipe at the lifting position with the correction lifting force;

[0047] S632421: based on pipe surface leakage, controlling preset glue gun mechanism to touch and heat the pipe leakage position with preset melting temperature, and injecting molten hot glue into the pipe leakage position with preset glue injection amount;

[0048] S632422: winding rubber sleeve around pipe at the pipe leakage position to bond rubber sleeve and pipe at high temperature.

[0049] In the second aspect, the application provides an integrated vacuum pump testing device, which adopts the following technical scheme:

[0050] An integrated vacuum pump testing device, which adopts an integrated vacuum pump testing method for testing, and includes a tested pump, a testing device for testing the tested pump, a testing table for controlling the testing process, and a curve data collection device for collecting testing data and automatically generating data curves.

[0051] By adopting the technical scheme, the test device tests the measured pump after the measured pump is started by the test bench, and finally the curve data acquisition device automatically acquires parameter data of the measured pump and automatically generates a data curve, so that the efficiency is higher than that of manual testing.

[0052] Optionally, the measured pump has an air inlet and an air outlet, and the test device comprises a buffer tank connected to the air inlet of the measured pump, a vacuum gauge arranged on the buffer tank, and a test orifice plate arranged on the air inlet of the buffer tank.

[0053] Optionally, a water inlet pipe for water inlet and a backwater pipe for backwater are arranged between the test bench and the measured pump, a water inlet pipe ball valve is arranged on the water inlet pipe, and a backwater pipe ball valve is arranged on the backwater pipe.

[0054] In summary, the present application has at least one of the following beneficial technical effects:

[0055] After the cooling water is introduced, the system first tests the measured pump in an unloaded state, determines that the limit vacuum degree of the measured pump can reach the planned vacuum degree, and then continuously switches different aperture test orifice plates to test the pumping speed of the measured pump when different aperture air inlets are used for air extraction. In this process, the curve data acquisition device automatically acquires parameter data through the sensors installed on the equipment and automatically generates a data curve, so that the efficiency is higher than that of manual testing;

[0056] When the temperature is abnormal and it is determined that the inner cavity is waterlogged, the system first blocks the cooling water from flowing into the inner cavity of the vacuum pump through the water blocking ring and the waterproof glue, then blows air into the inner cavity of the vacuum pump through the air blowing mechanism to blow most of the water out of the vacuum pump, and finally starts the vacuum pump to reduce the boiling point of the water by reducing the air pressure so that the water can evaporate into water vapor at the reference temperature value, and then be blown out of the vacuum pump by the air blowing mechanism. The above method can effectively remove the water in the inner cavity of the vacuum pump;

[0057] When the temperature is abnormal and it is determined that the outer pipe is leaking, if the leakage position is at the pipe joint position, the pipe is lifted by the hook so that the joint can be accurately matched with the socket, and if the leakage position is on the surface of the pipe, the leakage position is first heated by the high temperature of the glue gun mechanism and then molten hot glue is injected, and finally a rubber sleeve is generated on the outer surface in the circumferential direction, the molten hot glue is closed at the leakage position and the pipe and the rubber sleeve are bonded. BRIEF DESCRIPTION OF DRAWINGS

[0058] Figure 1 is a whole structure schematic diagram of an integrated vacuum pump test device according to an embodiment of the present application;

[0059] Figure 2 is a method flow chart of an integrated vacuum pump test method according to an embodiment of the present application;

[0060] Figure 3 is a method flowchart of the abnormal reason analysis method of the embodiment of the present application;

[0061] Figure 4 is a method flowchart of the inner cavity water seepage treatment method of the embodiment of the present application Figure 1 ;

[0062] Figure 5 is a method flowchart of the inner cavity water seepage treatment method of the embodiment of the present application Figure 2 ;

[0063] Figure 6 is a method flowchart of the inner cavity water seepage treatment method of the embodiment of the present application Figure 3 ;

[0064] Figure 7 is a method flowchart of the pipeline water leakage treatment method of the embodiment of the present application Figure 1 ;

[0065] Figure 8 is a method flowchart of the pipeline water leakage treatment method of the embodiment of the present application Figure 2 .

[0066] The part names referred to by the numbers in the above drawings are as follows: 1, measured pump; 2, test device; 21, buffer tank; 22, vacuum gauge; 23, test orifice plate; 3, test bench; 4, curve data acquisition device; 5, water inlet pipe; 6, water return pipe; 7, water inlet pipe ball valve; 8, water return pipe ball valve. DETAILED DESCRIPTION

[0067] In order to make the objectives, technical solutions and advantages of the present application clearer, the present application will be further described in detail below with reference to the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and do not limit the present application.

[0068] The embodiment of the present application discloses an integrated vacuum pump test device.

[0069] With reference to Figure 1 , an integrated vacuum pump test device 2 comprises a measured pump 1, a test device 2, a test bench 3 and a curve data acquisition device 4. Among them, the measured pump 1 is a vacuum pump to be tested, the test device 2 is installed on the measured pump 1 for data testing of the measured pump 1, the test bench 3 is connected with the measured pump 1 for start-stop control of the measured pump 1, and the curve data acquisition device 4 is connected with the measured pump 1 for collecting parameters of the measured pump 1 and automatically generating a data curve.

[0070] The testing device 2 comprises a buffer tank 21, a vacuum gauge 22 and a testing orifice plate 23. The buffer tank 21 is installed on the pump 1 to be tested by means of flange connection, so that the air outlet of the buffer tank 21 is aligned with and connected to the air inlet of the pump 1 to be tested. The vacuum gauge 22 is arranged on the buffer tank 21 to detect the vacuum degree in the buffer tank 21. The testing orifice plate 23 is installed on the air inlet of the buffer tank 21, and the testing orifice plate 23 has through holes with different diameters and can be switched for use.

[0071] The testing bench 3 has buttons for starting and stopping the pump 1 to be tested, and has meters for displaying various real-time parameters of the pump 1 to be tested. The testing bench 3 is connected to the pump 1 to be tested through a pipe assembly, which comprises a water inlet pipe 5 and a water return pipe 6. One end of the water inlet pipe 5 is connected to the testing bench 3, and the other end is connected to the pump 1 to be tested. The water return pipe 6 is the same. The pipe assembly can be connected to cooling water to cool the pump 1 to be tested. In order to control the on-off of the pipe assembly, a water inlet pipe ball valve 7 is installed on the water inlet pipe 5, and a water return pipe ball valve 8 is installed on the water return pipe 6.

[0072] The curve data acquisition device 4 is electrically connected to the pump 1 to be tested for data transmission. The curve data acquisition device 4 has various types of sensors, which are installed at various positions of the pump 1 to be tested to acquire data through the sensors. After the sensors acquire the parameters of the pump 1 to be tested, the parameters can be transmitted to the curve data acquisition device 4 through the electrical circuit for processing and analysis.

[0073] When testing the vacuum pump, the water inlet pipe ball valve 7 and the water outlet pipe ball valve 8 are opened, and then the equipment start button on the testing bench 3 is opened. By switching the testing orifice plate 23 with different diameters, the curve data acquisition device 4 can acquire the parameters of the pump 1 to be tested and analyze them.

[0074] Based on the same inventive concept, the embodiment of the present application provides an integrated vacuum pump testing method.

[0075] Reference Figure 2 An integrated vacuum pump testing method comprises the following steps:

[0076] Step S1: control the preset water inlet pipe ball valve 7 and the preset water return pipe ball valve 8 to be opened, and acquire the water pipe flow value.

[0077] The water inlet pipe ball valve 7 and the water return pipe ball valve 8 are described in the above embodiment, which are arranged on the water inlet pipe 5 and the water return pipe 6 respectively, and are used to control the on-off of the cooling water, which will not be described here.

[0078] The water pipe flow value refers to the flow of the cooling water flowing through the water inlet pipe 5 and the water return pipe 6. A flow meter is arranged on the pipe, and the water pipe flow value can be acquired through the flow meter.

[0079] Step S2: When the water pipe flow value is consistent with the preset reference flow value, control the preset power start button to open, and control the preset curve data acquisition device 4 to collect the limit vacuum degree of the preset buffer tank 21 in the empty state.

[0080] The vacuum pump generates heat when in use, so there is a requirement for the flow of cooling water. The reference flow value is the flow of cooling water required when the vacuum pump is in use, which is not described here.

[0081] After opening the water inlet pipe ball valve 7 and the backwater pipe ball valve 8, the water pipe flow value is collected in real time. When the water pipe flow value is inconsistent with the preset reference flow value, that is, the water pipe flow value has not reached the reference flow value, the measured vacuum pump cannot be started at this time. When the water flow value reaches the reference flow value, the measured vacuum pump can be started by pressing the power start button.

[0082] The limit vacuum degree refers to the lowest absolute pressure that the vacuum pump can reach after a long time of running in the empty state, that is, without connecting any external container or system. By closing the air inlet of the buffer tank 21, then running the measured pump 1, the curve data acquisition device 4 can collect the limit vacuum degree through the vacuum gauge 22 on the buffer tank 21.

[0083] Step S3: When the limit vacuum degree reaches the preset planning vacuum degree, install the test orifice plate 23 with the preset initial aperture at the preset air inlet position of the buffer tank 21, and control the curve data acquisition device 4 to collect the initial vacuum pumping speed and the working basic parameters of the measured pump 1, including the working temperature and the working pressure.

[0084] The planning vacuum degree is a standard parameter set by the technician for the vacuum pump. The limit vacuum degree of the vacuum pump can reach the standard, that is, meet the requirements, which is not described here.

[0085] When the collected limit vacuum degree reaches the planning vacuum degree, it means that the test result meets the requirements. At this time, the air inlet of the buffer tank 21 is opened, and the test orifice plate 23 with different aperture sizes is switched to test the initial vacuum pumping speed of the measured pump 1 and the working basic parameters of the measured pump 1 under different air inlet sizes. First, the test orifice plate 23 with the initial aperture is used for testing. The initial aperture refers to the aperture size of the test orifice plate 23, which is the aperture size for the first test. The aperture size of the subsequent test orifice plate 23 is increased based on this.

[0086] The initial vacuum pumping speed refers to the volume of gas that the vacuum pump can extract per unit time. The working basic parameters are the basic parameters of the vacuum pump during operation, including temperature and pressure, etc.

[0087] The initial vacuum pumping speed can be collected and converted by the vacuum gauge 22, and the calculation formula is:

[0088] S = V * ln (P0 / P1) / t, wherein S is the initial vacuum pumping speed, P0 and P1 are the vacuum degrees of the measured pump 1.

[0089] The measured pump 1 is provided with a temperature sensor, a pressure sensor and the like, and the curve data acquisition device 4 can acquire the working basic parameters of the measured pump 1 through the temperature sensor and the pressure sensor.

[0090] Step S4: continuously adjusting the initial aperture based on the preset aperture change amount to obtain a continuously adjusted aperture value.

[0091] The aperture change amount refers to the amount of increase each time the initial aperture is corrected. The continuously adjusted aperture value refers to the amount of adjustment of the initial aperture.

[0092] Step S5: switching the test hole plate 23 with the continuously adjusted aperture value, and controlling the curve data acquisition device 4 to acquire the adjusted working pumping speed and the adjusted working basic parameters.

[0093] When the test hole plate 23 is corrected according to different aperture sizes, the curve data acquisition device 4 can acquire the corresponding adjusted working pumping speed and the adjusted working basic parameters. The adjusted working pumping speed is the adjusted vacuum pumping speed of the test hole plate 23, and the adjusted working basic parameters are the adjusted working basic parameters of the test hole plate 23. The acquisition method is the same as that in step S3, and will not be repeated here.

[0094] Step S6: controlling the curve data acquisition device 4 to generate a pumping speed change curve based on the initial vacuum pumping speed and the adjusted working pumping speed, and to generate a basic parameter change curve based on the working basic parameters and the adjusted working basic parameters, and outputting the pumping speed change curve and the basic parameter change curve.

[0095] The pumping speed change curve is a change curve formed by fitting the vacuum pumping speeds obtained by testing under different apertures. The pumping speed change curve includes the initial vacuum pumping speed and the adjusted working pumping speed, so the pumping speed change curve can be generated through the initial vacuum pumping speed and the adjusted working pumping speed.

[0096] The basic parameter change curve is a change curve formed by fitting the working basic parameters obtained by testing under different apertures. The basic parameter change curve includes the working basic parameters and the adjusted working basic parameters, so the basic parameter change curve can be generated through the working basic parameters and the adjusted working basic parameters.

[0097] Reference Figure 3If the cooling water supply is abnormal during the operation of the measured pump 1, the temperature parameter in the basic parameter of the measured pump 1 will be abnormal. The basic parameter change curve includes a temperature curve, and the abnormal cause analysis method when the temperature is abnormal includes the following steps:

[0098] Step S60: Analyzing the temperature curve in the basic parameter change curve to determine the temperature rising section and the temperature balance section.

[0099] The temperature curve collected after the measured pump 1 starts is first slowly rising and then in a horizontal state, wherein the slowly rising stage is the temperature rising section of the temperature curve, and the stage in the horizontal state is the temperature balance section of the temperature curve. The temperature rising section and the temperature balance section can be intuitively reflected in the temperature curve, and the temperature rising section and the temperature balance section can be determined by analyzing the temperature curve.

[0100] Step S61: Determining the temperature high point average value based on the temperature curve and the temperature balance section.

[0101] The temperature high point average value refers to the temperature high point average value as the highest temperature of the measured pump 1 during operation, and also refers to the temperature average value of the measured pump 1 corresponding to the temperature balance section of the temperature curve. By collecting multiple data points from the temperature balance section and calculating the average value, the temperature high point average value is obtained.

[0102] Step S62: When the temperature high point average value is greater than the preset reference temperature value, controlling the water inlet pipe ball valve 7 and the water return pipe ball valve 8 to be closed, and collecting the water pipe pressure state and the inner cavity humidity.

[0103] The reference temperature value refers to the equipment temperature value of the vacuum pump during normal operation, which is measured by the technician in advance for the normally operating vacuum pump, and will not be described here.

[0104] If the temperature high point average value analyzed from the temperature curve is not greater than the reference temperature value, it means that the measured pump 1 is operating normally.

[0105] If the temperature high point average value analyzed from the temperature curve is greater than the reference temperature value, it means that the measured pump 1 is abnormal, and the cooling water supply is abnormal, and there may be a situation that the cooling water leaks to cause the temperature to be unable to cool.

[0106] By closing the water inlet pipe ball valve 7 and the water return pipe ball valve 8, the water quantity in the pipeline is kept constant in theory, and if there is leakage, the water quantity in the pipeline changes to change the parameter, and at this time, the water pipe pressure state and the inner cavity humidity are collected.

[0107] The water pipe pressure state refers to the change state of the water pressure value in the water outlet pipe and the water return pipe 6. The water pipe pressure state can be measured and analyzed in real time by a pressure gauge arranged on the pipe. The water pipe pressure state includes a falling state and a rising state.

[0108] The inner cavity humidity refers to the humidity value in the equipment. If the pipe produces water leakage and penetrates into the equipment, the humidity in the equipment will change. The inner cavity humidity can be collected and measured by a humidity gauge arranged in the equipment.

[0109] Step S63: When the water pipe pressure state is consistent with the preset reference falling state, it is determined whether the inner cavity humidity is greater than the preset reference running humidity.

[0110] The reference falling state refers to the falling trend of the water pressure in the pipe.

[0111] The reference running humidity refers to the maximum humidity value allowed in the equipment when the vacuum pump is normally running. The reference running humidity is determined by the technician in advance and will not be described here.

[0112] If the water pipe pressure state is not consistent with the reference falling state, it means that the temperature anomaly is not caused by water leakage, and there may be other problems. At this time, the system will issue an alarm.

[0113] If the water pipe pressure state is consistent with the reference falling state, it means that the pipe has water leakage, causing the water pressure to drop. When water leakage occurs, the water may leak outside the equipment or inside the equipment, and the effects of the two cases are different. By comparing the inner cavity humidity and the reference running humidity, it can be determined whether water leakage occurs inside the equipment.

[0114] Step S631: When the inner cavity humidity is greater than the reference running humidity, it is defined as inner cavity water leakage. The water leakage is treated by a preset inner cavity water leakage treatment method, and the inner cavity of the equipment is dried.

[0115] If the measured inner cavity humidity is greater than the reference running humidity, it means that the pipe has water leakage and penetrates into the inner cavity of the equipment, causing the equipment to be abnormal. When the above problem occurs, the system will treat the abnormal condition by the inner cavity water leakage treatment method. The inner cavity water leakage treatment method will not be described here and will be described in detail in subsequent embodiments.

[0116] Step S632: When the inner cavity humidity is not greater than the reference running humidity, it is defined as outer pipe water leakage. The outer pipe is repaired by a preset pipe water leakage treatment method.

[0117] If the inner cavity humidity is not greater than the reference operation humidity, it indicates that the pipeline leaks but does not seep into the inner cavity of the equipment, at this time, the system processes the pipeline anomaly through the pipeline leakage processing method, so that the cooling water in the pipeline can be maintained normally.

[0118] Referring to Figure 4 , the inner cavity water seepage processing method comprises the following steps:

[0119] Step S63100: Collect pipeline image information.

[0120] The pipeline image information refers to the image obtained by shooting the water inlet pipe 5 and the backwater pipe 6 through the camera arranged on the equipment.

[0121] Step S63101: Determine the pipeline inclination based on the pipeline image information.

[0122] The pipeline inclination refers to the actual inclination degree of the pipeline. The water inlet pipe 5 and the backwater pipe 6 may be inclined when they are connected to the test table 3 and the measured pump 1, at this time, there is pipeline inclination. If the inclined pipeline leaks, water will flow along the inclined pipeline to the low place.

[0123] The preset reference horizontal line is analyzed from the pipeline image information to determine the inclination amount of the reference horizontal line in the image, and then the inclination degree of the pipeline is analyzed from the pipeline image information, and the actual pipeline inclination can be analyzed by combining the inclination amount and the inclination degree of the pipeline in the image.

[0124] Step S63102: When the pipeline inclination is not 0, collect the humidity of the joint at one end of the pipeline close to the pump body.

[0125] The joint humidity refers to the humidity of the pipeline surface at the connection position of the pipeline and the measured pump 1.

[0126] When the pipeline inclination is not 0, and the connection position of the pipeline and the measured pump 1 is at the low place of the pipeline, if the pipeline leaks, water may flow to the connection position of the pipeline and the measured pump 1 along the pipeline flow channel, at this time, it may seep into the inner cavity of the equipment.

[0127] In this embodiment, the abnormality is processed by the repair robot, the humidity sensor is integrated on the repair robot, the humidity of the connection position of the pipeline and the measured pump 1 can be measured by the humidity sensor, and the joint humidity is obtained.

[0128] Step S63103: When the joint humidity is greater than the preset reference air humidity, control the preset wiping mechanism to wipe the joint at one end of the pipeline close to the pump body in the circumferential direction, and mark the wiped place as a water blocking place.

[0129] The reference air humidity refers to the air humidity of the environment where the equipment is located, which is not described herein.

[0130] If the humidity at the joint is not greater than the reference air humidity, it indicates that water has not flowed to the position where the pipeline is connected to the measured pump 1.

[0131] If the humidity at the joint is greater than the reference air humidity, there is water accumulation at the position where the pipeline is connected to the measured pump 1, and the position needs to be treated to isolate the water flowing to the position. The wiping mechanism is integrally arranged on the repair robot, and the repair robot controls the wiping mechanism to wipe the position where the pipeline is connected to the measured pump 1 in the circumferential direction. After the repair robot wipes the position, the system marks the position as a water-blocking position, and in subsequent embodiments, a water-blocking ring is arranged at the position to isolate the water from flowing to the position.

[0132] Step S63104: matching the inner diameter size of the preset water-blocking ring based on the preset pipeline diameter.

[0133] The water-blocking ring is an annular rubber ring and can be tightly clamped on the pipeline. In order to enable the water-blocking ring to tightly clamp the pipeline, the inner diameter size of the water-blocking ring is consistent with the pipeline diameter.

[0134] Step S63105: tightly clamping the water-blocking ring with the inner diameter size at the water-blocking position, and controlling the preset spraying mechanism to spray waterproof glue in the circumferential direction at the abutting position of the water-blocking ring and the pipeline.

[0135] The spraying mechanism is integrally arranged on the repair robot and can spray waterproof glue.

[0136] When the inner diameter size of the water-blocking ring is determined, the repair robot selects a suitable water-blocking ring and tightly clamps the water-blocking ring at the water-blocking position, and then the repair robot controls the spraying mechanism to spray waterproof glue in the circumferential direction at the abutting position of the water-blocking ring and the pipeline. At this time, when water flows downward to the water-blocking ring, the water can be blocked by the water-blocking ring and will not flow to the position where the pipeline is connected to the measured pump 1. After the water is blocked, the system next dries the inner cavity of the equipment, and the drying method is not described here and will be described in detail in subsequent embodiments.

[0137] Referring to Figure 5 , the inner cavity water treatment method further includes the following steps:

[0138] Step S63106: matching the blowing power of the blowing mechanism based on the humidity of the inner cavity.

[0139] The blowing mechanism is integrally arranged on the repair robot and can be used for blowing.

[0140] The blowing power is the power of the blowing mechanism when blowing. The blowing power corresponds to the humidity of the inner cavity one by one, and the higher the humidity of the inner cavity, the greater the blowing power.

[0141] Step S63107: Close the air outlet of the pump 1 under test, and control the air blowing mechanism to blow air from the air inlet of the buffer tank 21 to the inner cavity at the blowing power and the preset vertical blowing angle.

[0142] The vertical blowing angle refers to the vertical arrangement of the blowing direction of the air blowing mechanism and the air inlet of the buffer tank 21.

[0143] In this embodiment, when drying the inner cavity of the equipment, the system first closes the air outlet of the pump 1 under test, and then controls the air blowing mechanism to blow air to the inner cavity of the equipment at the blowing power and the vertical blowing angle. At this time, the air blown by the air blowing mechanism can gather in the inner cavity of the equipment and carry the water attached to the inner wall of the inner cavity.

[0144] Step S63108: After a preset blowing time, open the air outlet of the pump 1 under test to discharge the humid air, and correct the vertical blowing angle to a preset inclined blowing angle.

[0145] The blowing time is the time set by the technician in the system program for the air blowing mechanism to blow air at the vertical blowing angle, which is not described here.

[0146] The inclined blowing angle refers to the inclined angle between the blowing direction of the air blowing mechanism and the air inlet of the buffer tank 21.

[0147] After the air blowing mechanism continues to blow air for a period of time, the system controls the air outlet of the pump 1 under test to open, at which time the water and humid air carried by the air blown by the air blowing mechanism can be discharged from the air outlet. After the above steps are completed, the blowing angle of the air blowing mechanism is corrected from the vertical blowing angle to the inclined blowing angle.

[0148] Step S63109: Control the air blowing mechanism to blow air from the air inlet of the buffer tank 21 to the inner cavity at the inclined blowing angle to form a spiral wind in the inner cavity.

[0149] The system controls the air blowing mechanism to blow air from the air inlet of the buffer tank 21 at the inclined blowing angle, and the air blown by the air blowing mechanism can form a spiral wind in the inner cavity of the equipment. The spiral wind can further carry out the humid air and water in the inner cavity of the equipment.

[0150] After the above steps are completed, most of the humid air and water in the inner cavity of the equipment are carried away, and there may be residual water left in the gaps and other positions, which need to be dried finally. The drying method is not described here and will be described in detail in subsequent embodiments.

[0151] Referring to Figure 6 , the inner cavity water seepage treatment method further includes the following steps:

[0152] Step S63110: Match the boiling point vacuum degree based on the reference temperature value.

[0153] By performing vacuumizing, the boiling point temperature of water can be reduced, and the higher the vacuum degree, the lower the boiling point temperature. The boiling point vacuum degree refers to the vacuum degree corresponding to the boiling point of water at the reference temperature value.

[0154] By inputting the reference temperature value into the preset boiling point data table, the boiling point vacuum degree can be obtained. The boiling point data table is a data table previously determined by the technician to contain the corresponding relationship between the reference temperature value and the boiling point vacuum degree, which is not described here.

[0155] Step S63111: Start the vacuum pump and collect the inner cavity temperature value when the vacuum degree in the vacuum pump reaches the boiling point vacuum degree.

[0156] The inner cavity temperature value refers to the temperature value of the inner cavity of the device, which is collected and obtained by the temperature sensor inside the device.

[0157] By starting the vacuum pump, the vacuum degree of the inner cavity of the device is increased. By real-time measurement by the vacuum gauge 22, when the vacuum degree of the inner cavity of the device reaches the boiling point vacuum degree, the change of the inner cavity temperature value is observed.

[0158] Step S63112: When the inner cavity temperature value reaches the reference temperature value, after a preset waiting time, the air blowing mechanism is controlled to blow air into the inner cavity from the air inlet of the buffer tank 21.

[0159] When the inner cavity temperature value does not reach the reference temperature value, the water in the inner cavity of the device is still in a liquid state, and the vacuum pump is continued to run at this time.

[0160] When the inner cavity temperature value reaches the reference temperature value, the water in the inner cavity of the device is vaporized due to reaching the boiling point. The waiting time is the time set by the technician for the water in the inner cavity of the device to vaporize, which is not described here. After the waiting time, the water in the inner cavity of the device is all vaporized into a steam state and floats out from the gap of the inner cavity of the device, at which time the system controls the air blowing mechanism to blow air into the inner cavity of the device, thereby blowing out the residual vaporized steam from the vacuum pump.

[0161] Referring to Figure 7 , the pipeline water leakage treatment method comprises the following steps:

[0162] Step S6320: Collect the ground image information below the pipeline.

[0163] The ground image information refers to the image of the ground below the water inlet pipe 5 and the water return pipe 6, which is obtained by photographing by the camera arranged on the device.

[0164] Step S6321: Determine the water droplet falling position from the ground image information, and collect the water droplet falling image at high speed based on the interval of the water droplet falling position.

[0165] When the pipeline produces water leakage, water stains will be generated on the ground under the pipeline, and ring ripples will be generated when water drops on the water stains. The water stains are identified from the ground image information first to determine the water stain position, and then the ring ripple features in the water stains are identified, and the center position of the ring ripple features is the water drop falling position.

[0166] The water drop falling image refers to the image of the water drop falling from the pipeline to the water stain. The water drop falling image can be obtained by continuously shooting the water drop at high speed through the camera arranged on the device.

[0167] Step S6322: determining the initial falling speed of the water drop based on the water drop falling image.

[0168] The initial falling speed of the water drop refers to the speed of the water drop when it separates from the pipeline and falls. By combining and analyzing multiple water drop falling images, since the time interval of high-speed shooting of the camera is pre-set, and the height distance of the same water drop in different images can be analyzed from the image, the initial falling speed of the water drop can be calculated according to the height distance and the time interval.

[0169] Step S6323: determining the pipeline leakage position based on the initial falling speed, the pipeline inclination and a pre-set water bead flow model.

[0170] The water bead flow model refers to the speed model of the water bead flowing downward on the pipeline with different inclination degrees, which is formed by technicians through experiments and will not be described here.

[0171] The pipeline leakage position refers to the position point of the pipeline producing water leakage.

[0172] The speed of the water bead flowing downward from the water leakage position to the falling position along the inclined surface of the pipeline is the initial falling speed. According to the above conditions, the initial falling speed and the pipeline inclination are input into the water bead flow model to determine the pipeline leakage position.

[0173] Reference Figure 8 The pipeline water leakage processing method further includes the following steps:

[0174] Step S6324: determining the water leakage position type based on the pipeline image information and the pipeline leakage position, the water leakage position type including pipeline surface water leakage and pipeline joint position water leakage.

[0175] The water leakage position type refers to the position condition of the water leakage point on the pipeline. In this embodiment, there are two possible positions of the pipeline that may produce water leakage, one is that the pipeline surface is damaged to produce water leakage, and the second is that the joint position of the pipeline connected with the test bench 3 produces water leakage due to the docking problem. For different types of water leakage positions, the system adopts different methods for processing.

[0176] By identifying and analyzing the pipe leakage position from the pipe image information, the type of the leakage position can be determined.

[0177] Step S63241: based on the pipe joint position leakage, determining a lifting position according to the pipe leakage position and a preset offset distance.

[0178] For the case of pipe joint position leakage, it may be because the weight of the pipe causes the joint position of the pipe to be misaligned and leak. In this embodiment, the pipe is lifted upward to offset the weight of the pipe, so that the joint position is properly connected.

[0179] The offset distance is the distance between the position of the pipe being pulled and lifted and the joint position set by the technician, which will not be described here.

[0180] The lifting position refers to the force position when the pipe is lifted upward. The lifting position is the position of the pipe leakage position offset by the offset distance from the measured pump 1.

[0181] Step S632411: control the preset lifting mechanism to lift the pipe at the lifting position with a preset initial lifting force, and increase the initial lifting force by a preset lifting force increment, and determine whether the pipe leaks based on the ground image information.

[0182] The lifting mechanism is provided on the repair robot for lifting the pipe. The initial lifting force is the force initially applied by the lifting mechanism when lifting the pipe. The lifting force increment refers to the amount of increase in the initial lifting force.

[0183] In this embodiment, the system first lifts the pipe by the lifting mechanism with the initial lifting force, and then gradually increases the lifting force of the lifting mechanism by the lifting force increment, and detects in real time whether the pipe leaks.

[0184] Step S63242: when the pipe does not leak, record the corrective lifting force, and control the preset hook to lift and fix the pipe at the lifting position with the corrective lifting force.

[0185] When the pipe is still in a state of leakage, the lifting force of the lifting mechanism continues to increase. When the pipe stops leaking, it means that the weight of the pipe is offset by the force applied by the lifting mechanism, so that the joint position of the pipe is properly connected. At this time, the system automatically records the last corrective lifting force of the lifting mechanism.

[0186] After the corrective lifting force is determined, the system removes the lifting mechanism and uses the hook to lift the pipe. The hook also applies a corrective lifting force to the pipe, and one end of the hook is suspended from the side wall of the test bench 3, so that the hook always applies a lifting force to the pipe.

[0187] Step S632421: based on the pipe surface water leakage, a preset glue gun mechanism is controlled to touch and heat the pipe water leakage position at a preset melting temperature, and a preset amount of hot glue is injected into the pipe water leakage position.

[0188] For the case of pipe surface water leakage, in the embodiment, the system first heats the pipe water leakage position by the glue gun mechanism on the repair robot to make it soft so that the pipes can stick together, and then injects hot molten glue at the water leakage position, which further seals the water leakage position.

[0189] The melting temperature refers to the temperature that can soften the surface of the pipe. The glue gun mechanism is arranged on the repair robot and can be heated to melt the hot molten glue. The amount of glue injection is the amount of hot molten glue injected by the glue gun mechanism each time.

[0190] When the glue gun mechanism melts the hot molten glue, the temperature of its surface can reach the melting temperature. At this time, by abutting the surface of the glue gun mechanism with the pipe water leakage position, the surface temperature of the glue gun mechanism can soften the pipe water leakage position.

[0191] Step S632422: wrapping a rubber sleeve around the pipe at the pipe water leakage position to bond the rubber sleeve with the pipe at high temperature.

[0192] When the glue gun mechanism injects hot molten glue into the water leakage position, the repair robot wraps the rubber sleeve around the pipe water leakage position in the circumferential direction. The rubber sleeve can further press the hot molten glue at the water leakage position, and the hot molten glue can tightly bond the rubber sleeve with the pipe, thereby repairing the pipe water leakage position.

[0193] The above is only the preferred embodiment of the present application, and the protection scope of the present application is not limited to the above-mentioned embodiments. Any technical solution falling within the concept of the present application shall be within the protection scope of the present application. It should be noted that for ordinary skilled persons in the art, some improvements and decorations without departing from the principles of the present application shall also be considered as the protection scope of the present application.

Claims

1. An integrated vacuum pump testing method, characterized in that, include: S1: Control the opening of the inlet pipe ball valve (7) and the return pipe ball valve (8), and collect the water pipe flow value. The water pipe is used to circulate cooling water. S2: When the water pipe flow rate is consistent with the preset reference flow rate, control the preset power start button to turn on, and control the preset curve data acquisition device (4) to acquire the ultimate vacuum degree of the buffer tank (21) connected to the air inlet of the pump under test in the no-load state. S3: When the ultimate vacuum reaches the preset planned vacuum, a test plate (23) with a preset initial aperture is installed at the air inlet of the buffer tank (21), and the curve data acquisition device (4) is controlled to collect the initial vacuum pumping speed and the basic working parameters of the pump under test (1). The basic working parameters include working temperature and working pressure. S4: The initial aperture is continuously adjusted based on a preset aperture change amount to obtain a continuously adjusted aperture value; S5: Switch the test plate (23) with the continuously adjustable aperture value, and control the curve data acquisition device (4) to collect the adjustment working pumping speed and adjustment working basic parameters; S6: Based on the initial vacuum pumping speed and the adjusted working pumping speed, the curve data acquisition device (4) generates a pumping speed change curve, and based on the working basic parameters and the adjusted working basic parameters, generates a basic parameter change curve, and outputs the pumping speed change curve and the basic parameter change curve. The basic parameter change curves include temperature curves, and the methods for analyzing the causes of abnormal temperature readings include: S60: Analyze the temperature curve in the basic parameter change curve to determine the temperature rise segment and the temperature equilibrium segment; S61: Determine the average value of the high temperature points based on the temperature curve and the temperature equilibrium segment; S62: When the average value of the high temperature point is greater than the preset reference temperature value, control the inlet pipe ball valve (7) and the return pipe ball valve (8) to close, and collect the water pipe pressure status and the humidity of the inner cavity; S63: When the water pipe pressure state is consistent with the preset benchmark drop state, continue to determine whether the humidity of the inner cavity is greater than the preset benchmark operating humidity; S631: When the humidity of the inner cavity is greater than the reference operating humidity, it is defined as water seepage in the inner cavity. The water seepage is treated by a preset water seepage treatment method and the inner cavity of the equipment is dried. S632: When the humidity of the inner cavity is not greater than the reference operating humidity, it is defined as water leakage in the outer pipe, and the outer pipe is repaired using a preset water leakage treatment method.

2. The integrated vacuum pump testing method according to claim 1, characterized in that, The method for treating water seepage in the cavity includes: S63100: Acquires pipeline image information; S63101: Determine the pipe inclination based on the pipe image information; S63102: When the inclination of the pipeline is not 0, collect the moisture content at the joint of the pipeline near the pump body. S63103: When the humidity at the joint is greater than the preset reference air humidity, the preset drying mechanism is controlled to dry the joint at the end of the pipe near the pump body along the circumference, and the dried area is marked as the water-blocking area. S63104: Match the preset inner diameter of the water-blocking ring based on the preset pipe diameter; S63105: Tighten the water-blocking ring of the inner diameter to the water-blocking point, and control the preset spraying mechanism to spray waterproof adhesive circumferentially along the contact point between the water-blocking ring and the pipe.

3. The integrated vacuum pump testing method according to claim 2, characterized in that, Also includes: S63106: The blowing power of the blowing mechanism is matched based on the humidity of the inner cavity; S63107: Close the air outlet of the pump under test (1), and control the blowing mechanism to blow air into the inner cavity from the air inlet of the buffer tank (21) with the blowing power and the preset vertical blowing angle; S63108: After a preset blowing time, open the air outlet of the pump under test (1) to discharge the humid air and correct the vertical blowing angle to a preset tilt blowing angle. S63109: Control the blowing mechanism to blow air into the inner cavity from the air inlet of the buffer tank (21) at the tilted blowing angle to form a spiral wind in the inner cavity.

4. The integrated vacuum pump testing method according to claim 3, characterized in that, Also includes: S63110: Match boiling point vacuum degree based on the reference temperature value; S63111: Start the vacuum pump and collect the internal temperature value when the vacuum level inside the vacuum pump reaches the boiling point vacuum level; S63112: When the internal cavity temperature reaches the reference temperature, after a preset waiting time, the blowing mechanism is controlled to blow air into the internal cavity from the air inlet of the buffer tank (21).

5. The integrated vacuum pump testing method according to claim 2, characterized in that, The method for handling pipe leaks includes: S6320: Collects ground image information below the pipeline; S6321: Determine the location of the water droplets from the ground image information, and acquire images of the falling water droplets at high speed based on the interval of the water droplet falling location; S6322: Determine the initial falling velocity of the water droplet based on the falling water droplet image; S6323: Determine the location of the pipe leak based on the initial falling speed, the pipe inclination, and the preset water droplet flow model.

6. The integrated vacuum pump testing method according to claim 5, characterized in that, Also includes: S6324: Determine the leakage location type based on the pipeline image information and the pipeline leakage location, where the leakage location type includes leakage on the pipeline surface and leakage at the pipeline joint location; S63241: Based on water leakage at the pipe joint location, determine the lifting position according to the water leakage location and the preset offset distance; S632411: Control a preset lifting mechanism to lift the pipeline at the lifting position with a preset initial lifting force, and increase the initial lifting force with a preset lifting force increment, and determine whether the pipeline is leaking based on the ground image information; S63242: When the pipe is not leaking, record the corrective lifting force, and use the corrective lifting force to control the preset hook to lift and fix the pipe at the lifting position; S632421: Based on water leakage on the pipe surface, a preset glue gun mechanism is controlled by a preset melting temperature to touch and heat the water leakage location of the pipe, and molten hot glue is injected into the water leakage location of the pipe with a preset amount of glue. S632422: A rubber sleeve is wrapped around the circumference of the pipe at the location of the leak to bond the rubber sleeve to the pipe at high temperature.

7. An integrated vacuum pump testing device (2), wherein the integrated vacuum pump testing method as described in any one of claims 1 to 6 is used for testing, characterized in that, It includes a pump under test (1), a test device (2) for testing the pump under test (1), a test bench (3) for controlling the test process, and a curve data acquisition device (4) for collecting test data and automatically generating data curves.

8. The integrated vacuum pump testing device (2) according to claim 7, characterized in that, The pump under test (1) has an air inlet and an air outlet. The test device (2) includes a buffer tank (21) connected to the air inlet of the pump under test (1), a vacuum gauge (22) disposed in the buffer tank (21), and a test orifice plate (23) disposed in the air inlet of the buffer tank (21).

9. The integrated vacuum pump testing device (2) according to claim 7, characterized in that, The test bench (3) and the pump under test (1) are provided with an inlet pipe (5) for water intake and a return pipe (6) for water return. An inlet pipe ball valve (7) is provided on the inlet pipe (5) and a return pipe ball valve (8) is provided on the return pipe (6).

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