CN219121684U - Thermal shock fatigue test bed with fault recognition and alarm functions for heated part - Google Patents
Thermal shock fatigue test bed with fault recognition and alarm functions for heated part Download PDFInfo
- Publication number
- CN219121684U CN219121684U CN202222547525.XU CN202222547525U CN219121684U CN 219121684 U CN219121684 U CN 219121684U CN 202222547525 U CN202222547525 U CN 202222547525U CN 219121684 U CN219121684 U CN 219121684U
- Authority
- CN
- China
- Prior art keywords
- alarm
- thermal shock
- rotating speed
- speed sensor
- smoke
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000009661 fatigue test Methods 0.000 title claims abstract description 16
- 230000035939 shock Effects 0.000 title claims abstract description 16
- 239000000779 smoke Substances 0.000 claims abstract description 44
- 238000012360 testing method Methods 0.000 claims abstract description 39
- 238000012545 processing Methods 0.000 claims abstract description 24
- 238000010438 heat treatment Methods 0.000 claims abstract description 23
- 230000008054 signal transmission Effects 0.000 claims abstract description 12
- 238000001816 cooling Methods 0.000 claims abstract description 8
- 230000002457 bidirectional effect Effects 0.000 claims description 26
- 230000007246 mechanism Effects 0.000 claims description 8
- 230000005540 biological transmission Effects 0.000 claims description 4
- 238000000034 method Methods 0.000 abstract description 9
- 238000004088 simulation Methods 0.000 description 8
- 230000008569 process Effects 0.000 description 7
- 238000012544 monitoring process Methods 0.000 description 6
- 239000007789 gas Substances 0.000 description 4
- 230000002159 abnormal effect Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000000306 component Substances 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000002737 fuel gas Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000035882 stress Effects 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 230000005856 abnormality Effects 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000004781 supercooling Methods 0.000 description 1
- 230000008646 thermal stress Effects 0.000 description 1
Images
Landscapes
- Investigating Or Analyzing Materials Using Thermal Means (AREA)
Abstract
The utility model provides a heated parts thermal shock fatigue test bed with fault identification alarming function, the test box comprises a test box body, install at the inside heating station of test box, the cooling station, work piece holder, actuating device, smoke transducer is installed at the top region in the test box, install two-way rotational speed sensor on actuating device, two-way rotational speed sensor installs on the main shaft that is used for driving work piece clamp positive and negative rotation, smoke transducer, two-way rotational speed sensor passes through signal transmission cable to be connected to external alarm device, at the in-process of test bed circulation operation, the central data processor is given to the signal transmission, through processing analysis, calculate whether each class signal data exceeds the threshold value, judge whether the test bed breaks down, if break down then send out the alarm and automatic shutdown power through buzzer siren, alarm lamp.
Description
Technical Field
The utility model relates to the technical field of thermal fatigue test equipment for workpieces, in particular to an automatic identification alarm system for a piston thermal fatigue simulation test bench, and specifically relates to a thermal shock fatigue test bench for a heated part with a fault identification alarm function.
Background
The piston is one of the core components of the engine, and the reliability of the piston directly affects the life and safety of the entire engine. In recent years, with the development of science and technology and the development of 'double carbon', an internal combustion engine is continuously developed towards the directions of high power and high rotating speed, so that the thermal load and the thermal strength born by a piston are continuously increased, the thermal stress and the deformation are continuously increased, and the reliability of the piston is seriously reduced at high temperature and high pressure, so that the thermal fatigue simulation test research on the piston by a thermal fatigue simulation test bench is required, and the reliability of the piston is improved. The automatic identification alarm system is one of key systems of the simulation test bench, and can possibly cause the conditions of overheating of a piston, overtime heating of the piston, supercooling of the piston, overtime cooling of the piston, insufficient fuel gas quantity, fuel gas leakage and the like during a test, and the personal and property safety is directly influenced during serious conditions; therefore, in order to ensure personal and property safety, an automatic identification alarm system needs to be developed, when a test bed fails or is abnormal, the simulation test bed can automatically detect and alarm to prompt, meanwhile, the gas supply is cut off, the test bed is stopped, and the failure analysis system displays the failures and gives possible reasons. On the other hand, the existing thermal shock test equipment also has the problem of uneven heating among parts of the workpiece, and certain error exists in the accuracy of the simulation test.
Disclosure of Invention
In order to solve the defects and the shortcomings of the prior art, the utility model provides the test bed which can identify and monitor the whole safety in the test process and has the function of alarming timely once abnormality occurs, has the function of carefully monitoring the safety in the whole process and alarming timely in the test process, and can provide a clamp structure for uniformly heating workpieces in the test process. Specifically, the utility model is realized as follows:
the utility model provides a heated parts thermal shock fatigue test bed with fault identification alarming function, includes the test box, installs at the inside heating station of test box, cooling station, work piece holder, actuating device, installs smoke transducer in the top region in the test box, installs two-way rotational speed sensor on actuating device, and two-way rotational speed sensor installs on being used for driving the main shaft that the work piece pressed from both sides tightly positive and negative rotation, smoke transducer, two-way rotational speed sensor are connected to external alarm device through signal transmission cable, alarm device includes: base, install the alarm box on the base, install central processing module, alarm component in the alarm box, wherein: the alarm element is respectively connected with the smoke sensor, the bidirectional rotating speed sensor and the infrared thermometer in the heating station through the signal transmission cable and is connected to the central processing module for transmitting signals, and the central processing module is connected to the alarm.
Further, the alarm comprises an alarm lamp and a buzzer alarm, and the alarm lamp and the buzzer alarm are arranged at the top of the alarm box.
Further, the alarm element comprises a temperature signal converter, a smoke signal converter, a bidirectional rotating speed signal converter and a signal amplifier, wherein the temperature signal converter, the smoke signal converter and the bidirectional rotating speed signal converter are respectively connected with the infrared thermometer, the smoke sensor and the bidirectional rotating speed sensor through cables, and the signal amplifier is connected with the temperature signal converter, the smoke signal converter and the bidirectional rotating speed signal converter to receive and amplify conversion signals and then transmit the amplified conversion signals to the central processing module.
Further, the infrared thermometer is arranged in the heating station and is opposite to the heated workpiece, and the distance between the infrared thermometer and the heating station is 15 cm-25 cm.
Further, the smoke sensor is mounted within a range of between 35-45cm above the heated workpiece.
Further, the workpiece clamp comprises two clamping positions, the clamping positions are symmetrically distributed relative to the rotation axis, the clamping positions clamp cylindrical workpieces, each clamping position is provided with a rotating mechanism, and the rotating mechanism can drive the cylindrical workpieces fixed by the clamping positions to independently rotate.
Further, the rotating mechanism comprises at least three rotating rollers which are uniformly arranged on the inner wall of the clamping position, wherein the rotating rollers at the joint of the rotating rollers and the workpiece clamp are driving rollers, the rest of the rotating rollers are driven rollers, the driving rollers are in transmission connection with a driving device arranged on the workpiece clamp, the driving device can drive the driving rollers to rotate, the driven rollers are used as stress supports, and the driving rollers and the driven rollers are distributed along the axial direction of the clamping position.
Further, the alarm device further comprises a built-in battery and an external power line which are arranged in the base, wherein: the power line is used for charging the built-in battery and supplying power to the smoke sensor, the bidirectional rotating speed sensor, the infrared thermometer, the central processing module, the alarm and the alarm element, the built-in battery is connected with the central processing module, the alarm element and the signal transmission cable, and the power supply can be continuously kept after the power line is powered off.
The working principle and beneficial effects of the utility model are introduced: the workpiece clamp can keep forward and backward rotation between 180 degrees under the action of the driving device, and drives the two clamping positions to be sequentially switched back and forth between the heating station and the cooling station so as to perform a thermal shock fatigue test, the infrared thermometer is opposite to the workpiece body under the heating station, the surface temperature of the workpiece body is collected, and signals are transmitted to the alarm; in the test process, when a workpiece rotates from a cooling station to a heating station, smoke can be generated due to the change of the ambient temperature, and a smoke sensor arranged above the workpiece can collect and monitor the smoke concentration in the environment and transmit signals to an alarm; the bidirectional rotating speed sensor is arranged at the tail end of the rotating shaft of the driving equipment, can collect rotating data information, comprises rotating frequency and rotating speed information and transmits signals to the alarm; after the alarm receives the data signals, the signals are converted into data and sent to the central processing module, the central processing module detects the data, monitors whether the data exceeds a preset threshold value, if so, sends a starting signal to the alarm equipment, starts an alarm, achieves the safety monitoring of the monitoring test process, and can acquire the control steps in the process to realize the safety monitoring and the fine control. The clamping position in the workpiece clamp is used for clamping and fixing a test workpiece, the workpiece is generally cylindrical, such as a cylinder, a piston cap, a piston head and the like, and semicircular clamping pieces are generally used for fixing and installing. According to the utility model, when the test bed is faulty or abnormal, the simulation test bed can automatically detect and alarm to prompt, meanwhile, the gas supply is cut off, the test bed is stopped, the faults are displayed and possible reasons are given out in the fault analysis system, the personal and property safety is ensured to the greatest extent, and the accuracy of the simulation test is improved.
Drawings
FIG. 1 is a front elevational view of the structure of the present utility model;
FIG. 2 is a perspective view of the structure of the present utility model;
FIG. 3 is a perspective view of the structure of the test chamber;
FIG. 4 is a top view of the test chamber;
FIG. 5 is a rotational schematic of a clamping workpiece;
FIG. 6 is a perspective view of a structure for clamping a workpiece;
FIG. 7 is a schematic diagram of the internal structure of the alarm device;
FIGS. 8-10 are schematic structural diagrams of a smoke sensor, a bidirectional rotation speed sensor and an infrared thermometer;
wherein: 1-heating station, 2-cooling station, 3-work holder, 4-driving device, 5-test box, 6-smoke sensor, 7-two-way rotation speed sensor, 8-main shaft, 9-signal transmission cable, 10-base, 11-alarm box, 12-central processing module, 13-infrared thermometer, 14-alarm lamp, 15-buzzer alarm, 16-temperature signal converter, 17-smoke signal converter, 18-two-way rotation speed signal converter, 19-signal amplifier, 20-clamping position, 21-driving roller, 22-driven roller.
Detailed Description
The objects, technical solutions and advantages of the present utility model will become more apparent by the following detailed description of the present utility model with reference to the accompanying drawings. It should be understood that the description is only illustrative and is not intended to limit the scope of the utility model. In addition, in the following description, descriptions of well-known structures and techniques are omitted so as not to unnecessarily obscure the present utility model.
Example 1: the utility model provides a heated parts thermal shock fatigue test bed with fault identification alarming function, includes test box 5, installs at the inside heating station 1 of test box 5, cooling station 2, work piece holder 3, actuating device 4, installs smoke transducer 6 in the top region in test box 5, installs two-way rotational speed sensor 7 on actuating device 4, and two-way rotational speed sensor 7 installs on being used for driving work piece clamp positive and negative rotation's main shaft 8, smoke transducer 6, two-way rotational speed sensor 7 are connected to external alarm device through signal transmission cable 9, alarm device includes: base 10, install the alarm box 11 on base 10, install central processing module 12, alarm component in the alarm box 11, wherein: the alarm element is respectively connected with the smoke sensor 6, the bidirectional rotating speed sensor 7 and the infrared thermometer 13 in the heating station 1 through the signal transmission cable 9, and is connected with the central processing module 12 for transmitting signals, and the central processing module 12 is connected with the alarm. The infrared thermometer 13 adopts an optis CX LT type thermometer, the installation position of the infrared thermometer establishes an algebraic equation through the basic principles of heat conduction, heat convection and heat radiation, and after solving the established algebraic equation, the infrared thermometer 13 can be obtained to be installed at the position 20cm in front of a heated workpiece to be the optimal position. The smoke sensor 6 adopts an MP-2 type smoke detection gas sensor, the installation position of the smoke sensor establishes a numerical model of smoke through a mass conservation law, an energy conservation law and a momentum conservation law, and the smoke sensor 6 can be obtained to be installed at the position 40cm above a heated workpiece to be the optimal position by utilizing Fluent simulation software for solving. The optimal position selection criteria for the infrared thermometer 13 and the smoke sensor 6 are monitoring signals that can ensure that the sensor is operating within the ambient temperature to which it is subjected and that can be fast and accurate. The bidirectional rotating speed sensor 7 is arranged at the tail end of the main shaft 8 of the workpiece clamp 3, and can detect the reciprocating frequency of the main shaft 8 and detect whether the main shaft 8 rotates abnormally or not; the workpiece clamp 3 adopts a main shaft 8 bearing swinging structure, the main shaft 8 bearing performs 180-degree reciprocating rotary motion, two workpieces can be fixed at one time, and meanwhile, the main shaft 8 bearing swinging realizes the hot and cold circulation working conditions of the two workpieces; the signal amplifier 19 is arranged in the alarm device, so that signals can be amplified and simultaneously the amplified signals are filtered, and the accuracy and the reliability of data are improved; the central processing module 12 has an automatic feedback function, and automatically cuts off power supply and gas heating when the measured data is greater than a critical value; if the critical value is not exceeded, feeding back to the heating and heat-preserving chamber; the external temperature measuring instrument, the smoke sensor 6, the alarm lamp 14 of the bidirectional rotating speed sensor 7 and the buzzer alarm 15 are all provided with independent power supplies, and can also monitor in real time when the rack is not plugged in for operation.
When the device is in actual work, heated parts such as a workpiece piston or a cylinder cover are arranged in a heating and heat-preserving chamber by a clamp, the workpiece is heated, an infrared thermometer 13 is aligned and fixed at the front 20cm of the workpiece, so that the surface temperature of the workpiece can be measured, when the workpiece is fully overheated and cooled, smoke and the reciprocating frequency of the main shaft 8 swing are generated, the smoke sensor 6 and the bidirectional rotating speed sensor 7 collect data of the smoke and the reciprocating frequency, the data collected by the infrared thermometer 13, the smoke sensor 6 and the bidirectional rotating speed sensor 7 are transmitted to a fault analysis alarm system by a signal transmission cable 9, the temperature is processed by a temperature signal converter 16, the smoke and the bidirectional rotating speed signal are processed by a smoke signal converter 17 and a bidirectional rotating speed signal converter 18, the smoke and bidirectional rotating speed signal are transmitted to a central data processor by a signal amplifier 19, the preset critical value is compared by processing analysis, and the central data processor sounds, and the power supply is cut off by the central data processor if the critical value is exceeded; if the critical value is not exceeded, feeding back to the heating station 1, and continuing heating. The numerical monitoring operation control of the specific central processing module 12 is a conventional technical means in the industry, and this embodiment will not be further described in supplementary detail.
Example 2: on the basis of embodiment 1, the workpiece holder 3 comprises two clamping positions 20, the clamping positions 20 are symmetrically distributed relative to the rotation axis, the clamping positions 20 can clamp cylindrical workpieces, a rotating mechanism is arranged on each clamping position 20, and the rotating mechanism can drive the cylindrical workpieces fixed by the clamping positions 20 to independently rotate.
The rotating mechanism comprises at least three rotating rollers which are uniformly arranged on the inner wall of the clamping position 20, wherein the rotating rollers at the joint of the rotating rollers and the workpiece clamp 3 are driving rollers 21, the rest are driven rollers 22, the driving rollers 21 are in transmission connection with a driving device arranged on the workpiece clamp 3, the driving device can drive the driving rollers 21 to rotate, the driven rollers 22 serve as stress supports, and the driving rollers 21 and the driven rollers 22 are distributed along the axial direction of the clamping position 20. The driving roller 21 and the driven roller 22 are distributed in a triangular mode and are used for clamping cylindrical workpieces, and the roller surface of the rotating roller is a high-temperature-resistant glue type material support.
Preferably, the alarm device further comprises a built-in battery and an external power cord installed in the base 10, wherein: the power line is used for charging the built-in battery and supplying power to the smoke sensor 6, the bidirectional rotating speed sensor 7, the infrared thermometer 13, the central processing module 12, the alarm and the alarm element, and the built-in battery is connected with the central processing module 12, the alarm element and the signal transmission cable 9, so that the power supply can be continuously kept after the power line is powered off.
It is to be understood that the above-described embodiments of the present utility model are merely illustrative of or explanation of the principles of the present utility model and are in no way limiting of the utility model. Accordingly, any modification, equivalent replacement, improvement, etc. made without departing from the spirit and scope of the present utility model should be included in the scope of the present utility model. Furthermore, the appended claims are intended to cover all such changes and modifications that fall within the scope and boundary of the appended claims, or equivalents of such scope and boundary.
Claims (8)
1. The thermal shock fatigue test bed with the fault identification and alarm functions comprises a test box body (5), a heating station (1), a cooling station (2), a workpiece clamp (3) and a driving device (4) which are arranged in the test box body (5), and is characterized in that a smoke sensor (6) is arranged in the top area of the test box body (5), a bidirectional rotating speed sensor (7) is arranged on the driving device (4), the bidirectional rotating speed sensor (7) is arranged on a main shaft (8) for driving the workpiece to clamp and rotate positively and negatively, the smoke sensor (6) and the bidirectional rotating speed sensor (7) are connected to an external alarm device through a signal transmission cable (9),
the alarm device comprises: base (10), install alarm box (11) on base (10), install central processing module (12), alarm component in alarm box (11), wherein: the alarm element is respectively connected with the smoke sensor (6), the bidirectional rotating speed sensor (7) and the infrared thermometer (13) at the heating station (1) through the signal transmission cable (9), and is connected with the central processing module (12) for transmitting signals, and the central processing module (12) is connected with the alarm.
2. The thermal shock fatigue test stand according to claim 1, wherein the alarm comprises an alarm lamp (14) and a buzzer alarm (15), and the alarm lamp (14) and the buzzer alarm (15) are mounted on the top of the alarm box (11).
3. The thermal shock fatigue test stand according to claim 1, wherein the alarm element comprises a temperature signal converter (16), a smoke signal converter (17), a bidirectional rotating speed signal converter (18) and a signal amplifier (19), wherein the temperature signal converter (16), the smoke signal converter (17) and the bidirectional rotating speed signal converter (18) are respectively connected with the infrared thermometer (13), the smoke sensor (6) and the bidirectional rotating speed sensor (7) through cables, and the signal amplifier (19) is connected with the temperature signal converter (16), the smoke signal converter (17) and the bidirectional rotating speed signal converter (18) to receive and amplify the converted signals and then transmit the amplified signals to the central processing module (12).
4. A thermal shock fatigue test stand for heated parts according to claim 3, wherein the infrared thermometer (13) is installed in the heating station (1) to face the heated workpiece, and is 15 cm-25 cm away from the heating station (1).
5. A heated component thermal shock fatigue test stand according to claim 1, wherein the smoke sensor (6) is mounted within a range between 35-45cm above the heated workpiece.
6. The thermal shock fatigue test stand for heated parts according to any of claims 1-5, wherein the workpiece holder (3) comprises two clamping positions (20), the clamping positions (20) are symmetrically distributed relative to the rotation axis, the clamping positions (20) can clamp cylindrical workpieces, and each clamping position (20) is provided with a rotating mechanism which can drive the cylindrical workpieces fixed by the clamping positions (20) to rotate independently.
7. The heated component thermal shock fatigue test stand of claim 6, wherein the rotating mechanism comprises: at least three rotating rollers which are uniformly arranged on the inner wall of the clamping position (20), wherein the rotating rollers at the joint of the rotating rollers and the workpiece clamp (3) are driving rollers (21) and driven rollers (22), the driving rollers (21) are in transmission connection with a driving device arranged on the workpiece clamp (3), the driving device can drive the driving rollers (21) to rotate, the driven rollers (22) are used as stress supports, and the driving rollers (21) and the driven rollers (22) are distributed along the axial direction of the clamping position (20).
8. The heated component thermal shock fatigue test stand according to claim 1, wherein the alarm device further comprises a built-in battery and an external power cord mounted in the base (10), wherein:
the power line is used for charging the built-in battery and supplying power to the smoke sensor (6), the bidirectional rotating speed sensor (7), the infrared thermometer (13), the central processing module (12), the alarm and the alarm element,
the built-in battery is connected with the central processing module (12), the alarm element and the signal transmission cable (9), and can keep supplying power after the power line is powered off.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222547525.XU CN219121684U (en) | 2022-09-26 | 2022-09-26 | Thermal shock fatigue test bed with fault recognition and alarm functions for heated part |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222547525.XU CN219121684U (en) | 2022-09-26 | 2022-09-26 | Thermal shock fatigue test bed with fault recognition and alarm functions for heated part |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219121684U true CN219121684U (en) | 2023-06-02 |
Family
ID=86523440
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222547525.XU Active CN219121684U (en) | 2022-09-26 | 2022-09-26 | Thermal shock fatigue test bed with fault recognition and alarm functions for heated part |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219121684U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117057432A (en) * | 2023-08-31 | 2023-11-14 | 广州计测检测技术股份有限公司 | Method and system applied to workpiece temperature impact test |
-
2022
- 2022-09-26 CN CN202222547525.XU patent/CN219121684U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117057432A (en) * | 2023-08-31 | 2023-11-14 | 广州计测检测技术股份有限公司 | Method and system applied to workpiece temperature impact test |
| CN117057432B (en) * | 2023-08-31 | 2024-04-19 | 广州计测检测技术股份有限公司 | Method and system applied to workpiece temperature impact test |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN219121684U (en) | Thermal shock fatigue test bed with fault recognition and alarm functions for heated part | |
| KR20150118913A (en) | Cooling system for working fluid of machine tool and method for using thereof | |
| CN115084594B (en) | Fuel cell diagnosis method and system based on knowledge graph | |
| CN106425453A (en) | Device and method for automatically eliminating bearing assembling clearance | |
| KR101526846B1 (en) | A lance tube diagnostic device for measuring the thickness and crack of the lance tube provided in the boilers of thermoelectric power plants | |
| CN108453698B (en) | Intelligent detection robot for detecting internal condition of SCR reactor | |
| CN108225574B (en) | Hearth temperature detection device adopting laser detection | |
| CN208751866U (en) | The integral bearing seat of bearing operating condition can accurately be detected | |
| CN215374497U (en) | Magnetic coupling performance testing device | |
| CN214787567U (en) | Rotor hub temperature measuring device for power plant low-pressure cylinder cutting cylinder | |
| CN113984277A (en) | Automatic detection system for electric torque wrench | |
| CN117889795B (en) | Heat exchanger coil real-time monitoring device, heat exchanger and use method thereof | |
| CN109060578B (en) | Thermal fatigue testing device for cylinder cover of diesel engine | |
| CN209069587U (en) | A kind of device for testing bearing service lifetime | |
| WO2021072653A1 (en) | Internal rotor assembly testing system and movable platform | |
| CN113187565A (en) | Rotor hub temperature measuring device for power plant low-pressure cylinder cutting cylinder | |
| CN218295034U (en) | Temperature detection equipment for machine room power environment monitoring system | |
| CN113138082A (en) | Multi-source information fusion bearing fault diagnosis device and method | |
| CN202928693U (en) | Incinerator hearth high temperature detection system | |
| CN116698119A (en) | Monitoring equipment for energy storage power station and application method thereof | |
| CN219228231U (en) | Detector case frame | |
| CN219798234U (en) | Laser sensor and optical measurement system comprising same | |
| CN216525594U (en) | Combined type steam turbine welding seam detection device | |
| CN221475186U (en) | Fire-fighting remote auxiliary duty robot based on guide rail technology | |
| CN213521577U (en) | Dust removal motor overheat monitoring device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |