A steam quality detector and method

Abstract

This invention relates to the field of steam detection technology, and more particularly to a steam quality detector and method. The steam quality detector includes a cooling fan, a condenser, a gas-liquid collection and measurement device, a dual differential pressure transmitter, and a controller, all installed in the detector's housing. A liquid inlet pipe connects the condenser's inlet to the detector's input terminal, a drain pipe connects the condenser's inlet to the detector's output terminal, a collection pipe connects the condenser's outlet to the gas-liquid collection and measurement device's inlet, and a return pipe connects the gas-liquid collection and measurement device's outlet to the detector's output terminal. The dual differential pressure transmitter is connected to the gas-liquid collection and measurement device. This invention utilizes the condensate generated during steam sample detection to assist the cooling fan in condensing multiple sets of steam samples for subsequent continuous testing. In cases of continuous multi-sample testing, this improves condensation efficiency and reduces the workload of the cooling fan.

Description

Technical Field

[0001] This invention relates to the field of steam detection technology, and in particular to a steam quality detector and method. Background Technology

[0002] Steam quality testing includes several aspects, such as: condensing steam, collecting a certain amount of steam and non-condensable gases, measuring them, and obtaining the content of non-condensable gases; mixing steam with cold water and heating it, recording the initial and final temperatures and mass changes, and calculating the saturated steam dryness; and testing the steam superheat, which is the difference between the temperature of the steam after pressure is released and the temperature inside the pipeline.

[0003] Current steam testing methods generally use cold water as a cold source to assist steam condensation. The entire device is complex to assemble and the container is large. If air cooling is used for condensation, the heat dissipation efficiency of air cooling is relatively low compared to cold water. Therefore, the condenser fins need to be designed with a complex structure to obtain a larger heat exchange area. However, if multiple steam samples are tested continuously, the load of air cooling condensation will be greater.

[0004] Therefore, to address the above issues, a method can be designed that utilizes condensate as an additional cold source, combined with air-cooled condensation, to ensure condensation efficiency and reduce the workload of the cooling fan. Summary of the Invention

[0005] To overcome the problems of high condensing load and low condenser heat exchange efficiency when using air-cooled condensing instead of water-cooled condensing.

[0006] The technical solution of this invention is as follows: A steam quality detector includes a cooling fan, a condenser, a gas-liquid collection and measurement device, a dual differential pressure transmitter, and a controller, all installed in the detector's housing. A liquid inlet pipe connects the liquid inlet of the condenser to the input of the detector; a drain pipe connects the liquid inlet of the condenser to the output of the detector; a collection pipe connects the liquid outlet of the condenser to the liquid inlet of the gas-liquid collection and measurement device; and a return pipe connects the liquid outlet of the gas-liquid collection and measurement device to the output of the detector. The cooling fan accelerates airflow over the condenser surface, and the dual differential pressure transmitter is connected to the gas-liquid collection and measurement device. The inlet pipe is equipped with a monitoring component, a superheating device, a superheated steam temperature sensor, and a solenoid valve No. 1. The collection pipe is equipped with a condensate temperature sensor. The steam sample flows through the inlet pipe, passing through the monitoring component, the superheating device, and the condenser, and then into the gas-liquid collection and measurement device through the collection pipe. The gas-liquid collection and measurement device is equipped with a solenoid valve No. 2. The outlet pipe is equipped with a solenoid valve No. 3. The return pipe is equipped with a solenoid valve No. 4. The solenoid valve No. 3 is used to open or close the outlet pipe, and the solenoid valve No. 4 is used to open or close the return pipe. The condensate in the gas-liquid collection and measurement device flows into the output end of the detector through the return pipe.

[0007] Preferably, the monitoring component includes a vapor pressure sensor to be measured, a throttling device, an expanded vapor pressure sensor, and an expanded vapor temperature sensor, which are sequentially installed on the inlet pipeline. The vapor pressure sensor to be measured and the expanded vapor pressure sensor are used to detect the pressure values ​​of the vapor samples flowing into and out of the throttling device, respectively. The expanded vapor temperature sensor is used to detect the temperature of the vapor sample flowing out of the throttling device. The throttling device is used to adjust the flow area of ​​the pipeline.

[0008] Preferably, the superheating device includes a heater and a temperature control module. The superheating device is used to heat the steam sample to a preset temperature value. After superheating, the steam temperature sensor is used to detect the temperature value of the steam sample flowing out of the superheating device. A solenoid valve is used to open or close the liquid inlet pipe. A condensate temperature sensor is used to detect the temperature value of the steam sample flowing out of the condenser.

[0009] Preferably, the gas-liquid collection and measurement device includes a liquid cylinder body installed inside the housing of the detector, an air cylinder body installed inside the liquid cylinder, a liquid outlet pipe connected to one end of the liquid cylinder body, a liquid cylinder level measuring hose connected to the other end of the liquid outlet pipe, and an air cylinder level measuring hose connected to the air cylinder body. The liquid inlet end of the liquid cylinder body is connected to the liquid outlet end of the condenser through a pipeline. Both the liquid cylinder level measuring hose and the air cylinder level measuring hose are connected to a dual differential pressure transmitter. A second solenoid valve is installed on the air cylinder body. The second solenoid valve is used to open or close the channel between the air cylinder body and the external environment. The dual differential pressure transmitter on the air cylinder body is used to detect the pressure values ​​of the condensate in the liquid cylinder body and the non-condensable gas in the air cylinder body.

[0010] Preferably, the condenser includes several condenser tubes. One end of each condenser tube is connected to the superheating device via a liquid inlet pipe, and the other end is connected to the gas-liquid collection and measurement device via a liquid collection pipe. A circulation pipe is installed inside the condenser tubes. The outlet of the gas-liquid collection and measurement device is connected to one end of the circulation pipe via a backflow pipe. A No. 5 solenoid valve is installed on the backflow pipe. The other end of the circulation pipe is connected to the output end of the detector via two rows of pipes. A No. 5 solenoid valve is installed on the two rows of pipes. The No. 5 solenoid valve is used to open or close the backflow pipe, and the condensate can flow into the circulation pipe through the backflow pipe.

[0011] Preferably, the cooling fan includes a primary motor installed inside the housing of the detector, a drive gear disk installed on the output end of the primary motor, a drive gear ring fixedly connected to the drive gear disk, fan blades movably connected to the housing of the detector, and a driven gear fixedly installed on the fan blades. The driven gear meshes with the drive gear disk. The primary motor drives the drive gear disk and drive gear ring to rotate, and the drive gear disk drives the driven gear and fan blades to rotate. A transmission assembly and a cleaning assembly are installed inside the housing of the detector. A turbine assembly is installed on the condenser. The input end of the transmission assembly is connected to the output end of the cooling fan. The input end of the cleaning assembly is connected to the output end of the transmission assembly. The input end of the turbine assembly is connected to the output end of the transmission assembly. The cooling fan drives the cleaning assembly to rotate around the condenser through the transmission assembly, and the cooling fan drives the turbine assembly to rotate within the condenser through the transmission assembly.

[0012] Preferably, the transmission assembly includes a first transmission spur gear, a third transmission spur gear, a first transmission gear ring, a fourth transmission spur gear, a transmission gear sleeve, a second transmission bevel gear, a second transmission gear ring, a seventh transmission spur gear, and a third transmission gear ring, all movably connected within the housing of the detector; a second transmission spur gear fixedly mounted on the first transmission spur gear; a transmission gear chain meshing between the drive gear ring and the second transmission spur gear; a fifth transmission spur gear fixedly connected to the fourth transmission spur gear; a sixth transmission spur gear fixedly connected to the transmission gear sleeve; a first transmission bevel gear fixedly connected to the sixth transmission spur gear; and a third transmission bevel gear fixedly connected to the second transmission bevel gear. The transmission gear chain and the drive gear ring drive the second transmission spur gear and the first transmission spur gear to rotate. The first transmission spur gear meshes with the third transmission spur gear, and the first transmission spur gear drives the third transmission spur gear to rotate. The first transmission spur gear meshes with the first transmission ring gear. The third transmission spur gear drives the first transmission ring gear to rotate. The fourth transmission spur gear meshes with the first transmission ring gear. The first transmission ring gear drives the fourth and fifth transmission spur gears to rotate. The fifth transmission spur gear meshes with the transmission gear sleeve. The fifth transmission spur gear drives the transmission gear sleeve, the sixth transmission spur gear, and the first transmission bevel gear to rotate. The first transmission bevel gear meshes with the second transmission bevel gear. The sixth transmission spur gear meshes with the seventh transmission spur gear. The first transmission bevel gear drives the second and third transmission bevel gears to rotate. The sixth transmission spur gear drives the seventh transmission spur gear to rotate. The third transmission bevel gear meshes with the second transmission ring gear. The seventh transmission spur gear meshes with the third transmission ring gear. The third transmission bevel gear drives the second transmission ring gear to rotate. The seventh transmission spur gear drives the third transmission ring gear to rotate.

[0013] Preferably, the cleaning assembly includes an external cleaning module and an internal cleaning module. The external cleaning module is mounted on a second drive gear ring, and the internal cleaning module is mounted on a third drive gear ring. The second drive gear ring drives the external cleaning module to rotate around the outside of the condenser, and the third drive gear ring drives the internal cleaning module to rotate around the inside of the condenser. Both the external and internal cleaning modules include a pole, a drive assembly mounted in the pole, and a brush head mounted on the output end of the drive assembly. The drive assembly drives the brush head to extend or retract from the pole. The drive assembly includes a second motor mounted on the pole, a first linkage gear fixedly mounted on the output end of the second motor, several second linkage gears movably connected to the pole, a linkage chain meshing between the several second linkage gears, and a third linkage gear mounted on one of the second linkage gears. The brush head is mounted on the second linkage gear, and the third linkage gear meshes with the first linkage gear. The second motor drives the first linkage gear to rotate, the first linkage gear drives the third linkage gear and the corresponding second linkage gear to rotate, and the third linkage gear drives the brush head to rotate through the second linkage gear and the linkage chain.

[0014] Preferably, the eddy current assembly includes an input gear movably connected to the condenser, an input rod fixedly connected to the input gear, and a helical blade mounted on the input rod. The input rod is disposed inside a corresponding condenser tube. The input gear meshes with a third transmission gear ring, which drives the input gear, the corresponding input rod, and the helical blade to rotate.

[0015] A steam quality testing method, using a steam quality testing instrument as described above, includes the following steps:

[0016] S1: During the continuous detection phase of the steam sample, the controller sends signals to solenoid valves No. 1, No. 2, No. 3, No. 4, and No. 5, instructing solenoid valve No. 1 to open the liquid inlet pipe, solenoid valve No. 2 to close the channel between the gas cylinder body and the external environment, solenoid valve No. 3 to close the liquid outlet pipe, solenoid valve No. 4 to close the return pipe, and solenoid valve No. 5 to close the backflow pipe. At the same time, the controller also sends signals to the control unit of the cooling fan and the dual differential pressure transmitter, instructing them to start.

[0017] S2: The first group of steam samples flows through the inlet pipe in sequence through the steam pressure sensor to be tested, the throttling device, the steam pressure sensor after expansion, the steam temperature sensor after expansion, the superheating device, and the steam temperature sensor after superheating. The above monitoring components and the steam temperature sensor after superheating obtain the temperature and pressure parameters at each state point, and measure the heating parameters of the superheating device, and send them to the industrial computer for statistical calculation.

[0018] S3: The steam sample after heat treatment flows into the condenser. The fins on the condenser tube and the cooling fan are used to dissipate heat and accelerate the condensation of the steam sample, producing condensate and non-condensable gas. During the start-up of the cooling fan, the power is transmitted to the cleaning component and the vortex component through the transmission component. The cleaning component is controlled to rotate around the condenser to wipe and clean the fins on the condenser tube. The vortex component rotates inside the condenser tube to accelerate the flow of condensate and non-condensable gas.

[0019] S4: Condensate and non-condensable gas flow into the liquid cylinder body and gas cylinder body through the liquid collection pipe. During the process, the condensate temperature sensor detects the temperature values ​​of the condensate and non-condensable gas and sends the data to the industrial computer. The dual differential pressure transmitter measures the pressure difference between the non-condensable gas and condensate through the liquid outlet pipe and the liquid level measuring hose of the liquid cylinder and the liquid level measuring hose of the gas cylinder. The above parameters are sent to the industrial computer for statistical calculation to obtain parameters such as the expansion superheat, dryness, and non-condensable gas content of the steam sample.

[0020] S5: After the test is completed, the controller sends a signal to solenoid valves No. 2 and No. 5. Solenoid valve No. 2 opens the channel between the gas cylinder body and the external environment, and solenoid valve No. 5 opens the backflow pipe. Non-condensable gas flows out to the outside of the detector, and condensate flows into the circulation pipe through the backflow pipe. At this time, the second group of steam samples flows into the condenser pipe synchronously according to the steps of S2-S3. The condensate generated by the first group of steam samples carries away the heat of the second group of steam samples during the flow in the circulation pipe and is discharged through the drain pipe.

[0021] The beneficial effects of this invention are:

[0022] 1. The condensate generated during the steam sample testing process is used to assist the cooling fan in condensing multiple sets of steam samples for subsequent continuous testing. In the case of continuous testing of multiple samples, the condensation efficiency can be improved and the workload of the cooling fan can be reduced.

[0023] 2. The power output by the cooling fan, in conjunction with the transmission components, can control the movement of the cleaning components to wipe and clean the fins on the condenser, preventing dust from affecting the efficient heat dissipation of the condenser;

[0024] 3. The cleaning components are driven by the power of the cooling fan, which cleans dust simultaneously during the testing process, achieving cleaning as needed and eliminating the need for cleaning when the testing system is shut down. This method is more energy-efficient than a system with independent cleaning control.

[0025] 4. The brush heads on both the external and internal cleaning modules are movable. When cleaning the condenser fins is not required, the brush heads can be folded up to avoid affecting the airflow inside the condenser.

[0026] 5. The power output by the cooling fan, in conjunction with the transmission components, can control the movement of the eddy current components within the condenser, accelerating the flow of condensate and non-condensable gases, preventing non-condensable gases from accumulating in dead corners of the condenser tubes, and facilitating the efficient discharge of condensate and non-condensable gases into the gas-liquid collection and measurement device.

[0027] 6. The volume of condensate and non-condensable gas is calculated using a dual differential pressure transmitter. The volume is automatically calculated using the NCG measurement results. The structure is compact and the response is fast. Attached Figure Description

[0028] Figure 1 The diagram shown illustrates the working process of the steam quality tester of this invention.

[0029] Figure 2 The diagram shown is a schematic representation of the internal structure of the steam quality detector of the present invention.

[0030] Figure 3 The diagram shown is a front view of the steam quality detector of the present invention.

[0031] Figure 4 The diagram shown is a side view of the steam quality detector of the present invention.

[0032] Figure 5 The diagram shown is a schematic representation of the cooling fan and condenser structure of the steam quality detector of the present invention.

[0033] Figure 6 The diagram shown is a schematic representation of the internal structure of the cooling fan and condenser of the steam quality detector of the present invention.

[0034] Figure 7 The diagram shown is a schematic representation of the cooling fan, transmission assembly, cleaning assembly, and eddy current assembly of the steam quality detector of the present invention.

[0035] Figure 8 The diagram shown is a schematic representation of the cooling fan and transmission assembly of the steam quality detector of the present invention.

[0036] Figure 9 The diagram shown is a schematic representation of the transmission assembly and cleaning assembly of the steam quality detector of the present invention.

[0037] Figure 10 The diagram shown is a schematic representation of the transmission assembly and eddy current assembly of the steam quality detector of the present invention.

[0038] Figure 11 The steam quality detector of the present invention is shown. Figure 6 Enlarged view of point A in the middle;

[0039] Figure 12 The steam quality detector of the present invention is shown. Figure 6 Enlarged view of point B in the middle;

[0040] Figure 13 The diagram shown is a schematic representation of the internal structure of the external cleaning module of the steam quality detector of the present invention.

[0041] Explanation of reference numerals in the attached diagram: 1. Steam pressure sensor to be measured; 2. Throttling device; 3. Steam pressure sensor after expansion; 4. Steam temperature sensor after expansion; 5. Superheating device; 6. Steam temperature sensor after superheating; 7. Solenoid valve No. 1; 8. Cooling fan; 801. Motor No. 1; 802. Drive gear disc; 803. Drive gear ring; 804. Fan blade; 805. Driven gear; 9101. First transmission spur gear; 9102. Second transmission spur gear; 9103. Transmission gear chain; 9104, No. 3 transmission spur gear; 9105, No. 1 transmission gear ring; 9106, No. 4 transmission spur gear; 9107, No. 5 transmission spur gear; 9108, transmission gear sleeve; 9109, No. 6 transmission spur gear; 9110, No. 1 transmission bevel gear; 9111, No. 2 transmission bevel gear; 9112, No. 3 transmission bevel gear; 9113, No. 2 transmission gear ring; 9114, No. 7 transmission spur gear; 9115, No. 3 transmission gear ring; 9201, outer cleaning mold 9202. Internal cleaning module; 9203. Brush head; 9204. Motor No. 2; 9205. First linkage gear; 9206. Second linkage gear; 9207. Linkage chain; 9208. Third linkage gear; 9301. Input gear; 9302. Input rod; 9303. Spiral blade; 10. Condenser; 1001. Condenser pipe; 1002. Circulation pipe; 11. Condensate temperature sensor; 12. Gas-liquid collection and measurement device; 1201. Liquid cylinder. 1202. Air cylinder body; 1203. Liquid outlet pipe; 1204. Liquid cylinder level measuring hose; 1205. Air cylinder level measuring hose; 13. No. 2 solenoid valve; 14. Dual differential pressure transmitter; 15. No. 3 solenoid valve; 16. No. 4 solenoid valve; 17. No. 5 solenoid valve; 18. Controller; 1901. Liquid inlet pipe; 1902. Liquid outlet pipe; 2001. Liquid collection pipe; 2002. Return pipe; 2101. Reverse flow pipe; 2102. Second row pipe. Detailed Implementation

[0042] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0043] Please see Figures 1-13This invention provides an embodiment of a steam quality detector, comprising a cooling fan 8, a condenser 10, a gas-liquid collection and measuring device 12, a dual differential pressure transmitter 14, and a controller 18 installed in the detector's housing. A liquid inlet pipe 1901 connects the liquid inlet end of the condenser 10 to the input end of the detector; a drain pipe 1902 connects the liquid inlet end of the condenser 10 to the output end of the detector; a collection pipe 2001 connects the liquid outlet end of the condenser 10 to the liquid inlet end of the gas-liquid collection and measuring device 12; and a return pipe 2002 connects the liquid outlet end of the gas-liquid collection and measuring device 12 to the output end of the detector. The cooling fan 8 is used to accelerate the air exchange on the surface of the condenser 10. Gas flow occurs through a dual differential pressure transmitter 14 connected to a gas-liquid collection and measurement device 12. A monitoring component, a superheating device 5, a superheated steam temperature sensor 6, and a first solenoid valve 7 are sequentially installed on the inlet pipe 1901. A condensate temperature sensor 11 is installed on the collection pipe 2001. The steam sample flows sequentially through the monitoring component, superheating device 5, and condenser 10 via the inlet pipe 1901, and then flows into the gas-liquid collection and measurement device 12 via the collection pipe 2001. A second solenoid valve 13 is installed on the gas-liquid collection and measurement device 12. A third solenoid valve 15 is installed on the drain pipe 1902, and a fourth solenoid valve 16 is installed on the return pipe 2002. The third solenoid valve 15 is used to open or close the valve. The drain line 1902 is closed. Solenoid valve 16 (number four) is used to open or close the return line 2002. The condensate in the gas-liquid collection and measurement device 12 flows into the output of the detector through the return line 2002. The steam sample flows in from the input of the detector. Controller 18 opens solenoid valve 7 (number one) and closes solenoid valve 15 (number three). The steam sample flows into the condenser 10 through the inlet line 1901. On the inlet line 1901, the sample passes sequentially through the monitoring component, the superheating device 5, and the superheated steam temperature sensor 6. The monitoring component detects the pressure and temperature of the steam sample before superheating. After superheating to saturated steam, the superheated steam temperature sensor 6 detects the temperature of the saturated steam. When superheated steam flows into condenser 10, controller 18 starts cooling fan 8 to accelerate airflow around condenser 10, assisting superheated steam in condensing in condenser 10. Condensation produces condensate and non-condensable gas. The temperature of condensate and non-condensable gas is detected by condensate temperature sensor 11. Then, condensate and non-condensable gas flow into gas-liquid collection and measurement device 12. The pressure difference between condensate and non-condensable gas is detected by dual differential pressure transmitter 14 and sent to industrial computer to calculate the respective volumes of condensate and non-condensable gas. After the detection is completed, solenoid valve 13 and solenoid valve 16 are opened, and non-condensable gas flows out into the external environment, while condensate flows out through return pipe 2002.

[0044] Please see Figures 1-6In this embodiment, the monitoring components include a vapor pressure sensor 1 to be measured, a throttling device 2, an expanded vapor pressure sensor 3, and an expanded vapor temperature sensor 4, which are sequentially installed on the inlet pipe 1901. The vapor pressure sensor 1 and the expanded vapor pressure sensor 3 are used to detect the pressure values ​​of the vapor samples flowing into and out of the throttling device 2, respectively. The expanded vapor temperature sensor 4 is used to detect the temperature of the vapor sample flowing out of the throttling device 2. The throttling device 2 is used to adjust the flow area of ​​the pipe. The superheating device 5 includes a heater and a temperature control module. The superheating device 5 is used to heat the vapor sample to a preset temperature value (so that the vapor sample reaches a saturated vapor state). The superheated vapor temperature sensor 6 is used to detect the temperature value of the vapor sample flowing out of the superheating device 5. The first solenoid valve 7 is used to open or close the inlet pipe 1901. The condensate temperature sensor 11 is used to detect the temperature value of the vapor sample flowing out of the condenser 10. The gas-liquid collection and measurement device 12 includes a liquid cylinder body 1201 installed in the housing of the detector and a liquid cylinder body installed in the liquid cylinder. The system consists of an air cylinder body 1202, a liquid outlet pipe 1203 connected at one end to a liquid cylinder body 1201, a liquid cylinder level measuring hose 1204 connected at the other end of the liquid outlet pipe 1203, and an air cylinder level measuring hose 1205 connected to the air cylinder body 1202. The liquid inlet of the liquid cylinder body 1201 is connected to the liquid outlet of the condenser 10 via a pipeline. Both the liquid cylinder level measuring hose 1204 and the air cylinder level measuring hose 1205 are connected to a dual differential pressure transmitter 14. A second solenoid valve 13 is installed on the air cylinder body 1202. On 202, the second solenoid valve 13 is used to open or close the channel between the air cylinder body 1202 and the external environment. The dual differential pressure transmitter 14 on the air cylinder body 1202 is used to detect the pressure values ​​of the condensate in the liquid cylinder body 1201 and the non-condensable gas in the air cylinder body 1202. The condenser 10 includes several condenser tubes 1001. One end of the condenser tube 1001 is connected to the superheating device 5 through the liquid inlet pipe 1901, and the other end of the condenser tube 1001 is connected to the gas-liquid collection and measuring device 12 through the liquid collection pipe 2001.A circulation pipe 1002 is installed inside the condenser tube 1001. The liquid outlet of the gas-liquid collection and measuring device 12 is connected to one end of the circulation pipe 1002 via a backflow pipe 2101. A solenoid valve 17 is installed on the backflow pipe 2101. A second row of pipes 2102 is connected between the other end of the circulation pipe 1002 and the output end of the detector. A solenoid valve 17 is installed on the second row of pipes 2102. The solenoid valve 17 is used to open or close the backflow pipe 2101. The condensate can flow into the circulation pipe 1002 through the backflow pipe 2101. The steam sample flows sequentially through the steam pressure sensor 1 to be measured. The system comprises a throttling device 2, an expanded steam pressure sensor 3, an expanded steam temperature sensor 4, a superheating device 5, and a superheated steam temperature sensor 6. These components acquire temperature and pressure parameters at various points in the steam sample's state and measure the heating parameters of the superheating device 5. The data is then sent to an industrial computer for statistical calculation. The superheated steam flows into a condenser 10 for condensation. A condensate temperature sensor 11 detects the temperature values ​​of the condensate and non-condensable gases and sends the data to the industrial computer. The condensate flows into the liquid cylinder body 1201, and the non-condensable gases flow into the gas cylinder body 1202. The system is then connected via a dual differential pressure transmitter 14. The liquid level measuring hose 1204 and the gas level measuring hose 1205 of the liquid cylinder detect the pressure difference between the condensate and the non-condensable gas. After the detection is completed, the fourth solenoid valve 16 is opened, and the condensate is discharged from the return pipe 2002. When the detector detects multiple sets of steam samples, the condenser 10 is in a superheated state for a long time, and the operating load of the cooling fan 8 is high. At this time, after the first set of steam samples is detected, the controller 18 controls the fifth solenoid valve 17 to open and the fourth solenoid valve 16 to close. The condensate flowing out of the liquid cylinder body 1201 flows into the circulation pipe 1002 through the backflow pipe 2101. The second set of steam samples also enters the condenser tube 1001 at this time. The condensate from the previous set of steam samples helps condense the next set of steam samples (in practical applications, a storage tank can be installed on the reflux pipe 2101 to store the condensate. When the next set of steam samples enters the input terminal of the detector, all the condensate from the previous set of steam samples flows into this storage tank. Then, the controller 18 closes the fifth solenoid valve 17, waiting for the steam sample to flow into the condenser 10. The condensate then flows from the storage tank into the circulation pipe 1002). The condensate is then discharged from the output terminal of the detector through the second row of pipes 2102.

[0045] Please see Figures 5-8In this embodiment, the cooling fan 8 includes a primary motor 801 installed inside the housing of the detector, a drive gear disk 802 installed on the output end of the primary motor 801, a drive gear ring 803 fixedly connected to the drive gear disk 802, fan blades 804 movably connected to the housing of the detector, and a driven gear 805 fixedly installed on the fan blades 804. The driven gear 805 meshes with the drive gear disk 802. The primary motor 801 drives the drive gear disk 802 and the drive gear ring 803 to rotate, and the drive gear disk 802 drives the driven gear 805 and the fan blades 804 to rotate. A transmission assembly and a cleaning assembly are installed inside the housing of the detector. A turbine assembly is installed on the condenser 10. The input end of the transmission assembly is connected to the output end of the cooling fan 8, and the input end of the cleaning assembly is connected to the transmission assembly. The output end of the component is connected, the input end of the turbine assembly is connected to the output end of the transmission assembly, the cooling fan 8 drives the cleaning assembly to rotate around the condenser 10 through the transmission assembly, the cooling fan 8 drives the turbine assembly to rotate in the condenser 10 through the transmission assembly, the first motor 801 outputs power to the drive gear disk 802, controls the rotation of the drive gear disk 802 and the drive gear ring 803, the drive gear disk 802 transmits power to the driven gear 805 meshing with it, controls the fan blade 804 to rotate, forming flowing air around the condenser 10, accelerating the heat dissipation of the condenser 10, at the same time, the power of the first motor 801 is synchronously transmitted to the cleaning assembly and the vortex assembly through the transmission assembly, causing the cleaning assembly to clean the condenser 10, and causing the vortex assembly to accelerate the flow speed of condensate and non-condensable gas in the condenser tube 1001.

[0046] Please see Figures 5-13In this embodiment, the transmission assembly includes a first transmission spur gear 9101, a third transmission spur gear 9104, a first transmission gear ring 9105, a fourth transmission spur gear 9106, a transmission gear sleeve 9108, a second transmission bevel gear 9111, a second transmission gear ring 9113, a seventh transmission spur gear 9114, and a third transmission gear ring 9115, all movably connected within the housing of the detector; a second transmission spur gear 9102 fixedly mounted on the first transmission spur gear 9101; a transmission gear chain 9103 meshing between the drive gear ring 803 and the second transmission spur gear 9102; and a transmission gear chain 9103 fixedly connected to the fourth transmission spur gear 9101. The fifth transmission spur gear 9107 on 06, the sixth transmission spur gear 9109 fixedly connected to the transmission gear sleeve 9108, the first transmission bevel gear 9110 fixedly connected to the sixth transmission spur gear 9109, and the third transmission bevel gear 9112 fixedly connected to the second transmission bevel gear 9111, the transmission gear chain 9103 and the drive gear ring 803 are used to drive the second transmission spur gear 9102 and the first transmission spur gear 9101 to rotate. The first transmission spur gear 9101 meshes with the third transmission spur gear 9104, and the first transmission spur gear 9101 is used to drive the third transmission spur gear 9104 to rotate. Gear 9104 meshes with transmission ring gear 9105. Transmission spur gear 9104 drives transmission ring gear 9105 to rotate. Transmission spur gear 9106 meshes with transmission ring gear 9105. Transmission ring gear 9105 drives transmission spur gear 9106 and transmission spur gear 9107 to rotate. Transmission spur gear 9107 meshes with transmission sleeve 9108. Transmission spur gear 9107 drives transmission sleeve 9108, transmission spur gear 9109, and transmission bevel gear 9110 to rotate. Transmission bevel gear 9110 meshes with transmission bevel gear 9108. 11 gears mesh: the sixth transmission spur gear 9109 meshes with the seventh transmission spur gear 9114; the first transmission bevel gear 9110 drives the second transmission bevel gear 9111 and the third transmission bevel gear 9112 to rotate; the sixth transmission spur gear 9109 drives the seventh transmission spur gear 9114 to rotate; the third transmission bevel gear 9112 meshes with the second transmission gear ring 9113; the seventh transmission spur gear 9114 meshes with the third transmission gear ring 9115; the third transmission bevel gear 9112 drives the second transmission gear ring 9113 to rotate; and the seventh transmission spur gear 9114 drives the third transmission gear ring 9115 to rotate.The cleaning assembly includes an external cleaning module 9201 and an internal cleaning module 9202. The external cleaning module 9201 is mounted on a second drive gear ring 9113, and the internal cleaning module 9202 is mounted on a third drive gear ring 9115. The second drive gear ring 9113 drives the external cleaning module 9201 to rotate around the outside of the condenser 10, and the third drive gear ring 9115 drives the internal cleaning module 9202 to rotate around the inside of the condenser 10. Both the external cleaning module 9201 and the internal cleaning module 9202 include a pole, a drive assembly mounted in the pole, and a brush head 9203 mounted on the output end of the drive assembly. The drive assembly drives the brush head 9203 to extend or retract from the pole. The drive assembly includes a second motor 9204 mounted on the pole and a brush head 9203 fixedly mounted on the second motor 9204. The output end of motor 204 has a first linkage gear 9205, several second linkage gears 9206 movably connected to the upright, a linkage chain 9207 meshing between the several second linkage gears 9206, and a third linkage gear 9208 installed on one of the second linkage gears 9206. The brush head 9203 is installed on the second linkage gear 9206. The third linkage gear 9208 meshes with the first linkage gear 9205. Motor 204 is used to drive the first linkage gear 9205 to rotate. The first linkage gear 9205 is used to drive the third linkage gear 9208 and the corresponding second linkage gear 9206 to rotate. The third linkage gear 9208 drives the brush head 9203 to rotate through the second linkage gear 9206 and the linkage chain 9207.The eddy current assembly includes an input gear 9301 movably connected to the condenser 10, an input rod 9302 fixedly connected to the input gear 9301, and a spiral blade 9303 mounted on the input rod 9302. The input rod 9302 is located inside the corresponding condenser tube 1001. The input gear 9301 meshes with a third transmission gear ring 9115, which drives the input gear 9301, the corresponding input rod 9302, and the spiral blade 9303 to rotate. Dead zones exist at both ends of the condenser tube 1001, where non-condensable gases, due to their light weight, tend to accumulate and cannot flow out with the condensate, affecting the test results. Therefore, a eddy current assembly is installed in the condenser 10. The eddy current assembly, synchronously driven by the cooling fan 8, turbulents the flow of condensate and non-condensable gases, reducing vapor buildup. The power output from the first motor 801 is transmitted to the first transmission gear 9101 via the drive gear ring 803, the second transmission gear 9102, and the transmission chain 9103. The first transmission gear 9101 then transmits the power to the third transmission gear 9104. The rotation of the third transmission gear 9104 drives the first transmission gear ring 9105 to rotate. The first transmission gear ring 9105 transmits power to the fourth transmission gear 9106, controlling the rotation of the fourth transmission gear 9106 and its fifth transmission gear 9107. The fifth transmission gear 9107, through its interaction with the transmission chain... The meshing transmission action of the moving gear sleeve 9108 controls the rotation of the transmission gear sleeve 9108, the sixth transmission spur gear 9109, and the first transmission bevel gear 9110 together. The first transmission bevel gear 9110 transmits power to the second transmission bevel gear 9111 and the third transmission bevel gear 9112, controlling the rotation of the second transmission gear ring 9113. The sixth transmission spur gear 9109 transmits power to the seventh transmission spur gear 9114, controlling the rotation of the third transmission gear ring 9115. The second transmission gear ring 9113 controls the rotation of its external cleaning module 9201 around the outer circumference of the condenser 10, and the third transmission gear ring 9115 controls the rotation of its internal cleaning module 9202 around the inner circumference of the condenser 10. The fins on the condenser 10 are wiped and cleaned by brush heads 9203 mounted on the external cleaning module 9201 and internal cleaning module 9202 (in practical applications, the second motor 9204 controls the second linkage gear 9206 and linkage chain 9207 for transmission; when cleaning is needed, the brush head 9203 is unfolded, and when cleaning is not needed, the brush head 9203 is retracted into the upright). The third transmission gear ring 9115 then transmits power to the input gear 9301, controlling the input rod 9302 and the spiral blade 9303 to rotate in the corresponding condenser tube 1001, agitating the condensate and non-condensable gases, accelerating their flow, and preventing non-condensable gases from accumulating in the dead corners of the condenser tube 1001.

[0047] Please see Figures 1-13 In this embodiment, the present invention provides a steam quality detection method, which uses a steam quality detector as described above, and includes the following steps:

[0048] S1: During the continuous steam sample detection phase, the controller 18 sends signals to solenoid valves 7, 13, 15, 16, and 17, instructing solenoid valve 7 to open the inlet pipe 1901, solenoid valve 13 to close the channel between the cylinder body 1202 and the external environment, solenoid valve 15 to close the outlet pipe 1902, solenoid valve 16 to close the return pipe 2002, and solenoid valve 17 to close the backflow pipe 2101. At the same time, the controller 18 also sends signals to the control unit of the cooling fan 8 and the dual differential pressure transmitter 14 (which is an existing device for measuring the pressure difference between two points, with two pressure input ports connected to the high-pressure side and low-pressure side of the system under test, respectively; in this scheme, these are the liquid cylinder level measuring hose 1204 and the gas cylinder level measuring hose 1205; after detecting the pressure difference, it is converted into an electrical signal and sent to the industrial computer for calculation to generate the specific volume of condensate and non-condensable gas), causing both of them to start.

[0049] S2: The first group of steam samples flows sequentially through the inlet pipe 1901, passing through the steam pressure sensor 1, the throttling device 2, the expanded steam pressure sensor 3, the expanded steam temperature sensor 4, the superheating device 5, and the superheated steam temperature sensor 6. The above monitoring components and the superheated steam temperature sensor 6 obtain the temperature and pressure parameters at each state point, and measure the heating parameters of the superheating device 5, sending them to the industrial computer for statistical calculation (the steam pressure sensor 1 detects the pressure value of the steam sample when it flows into the detector; the throttling device 2 is an existing flow measurement device, usually used in conjunction with a differential pressure transmitter. It generates a pressure difference by creating local resistance in the pipeline, and then calculates the flow rate of the fluid based on this pressure difference; the expanded steam pressure sensor 3 detects the pressure value of the steam sample after throttling; the expanded steam temperature sensor 4 detects the temperature value of the steam sample after throttling; the superheating device 5 heats the saturated steam to a higher temperature, thereby generating superheated steam; and the superheated steam temperature sensor 6 monitors the outlet temperature of the superheated steam).

[0050] S3: The steam sample after heat treatment flows into the condenser 10. The fins on the condenser tube 1001 of the condenser 10 (in this design, a ring-shaped condenser tube 1001 structure is adopted, and the fins are spiral-shaped to increase the heat dissipation area. In actual applications, it can also be designed into other shapes) and the cooling fan 8 are used for heat dissipation, which accelerates the condensation of the steam sample and produces condensate and non-condensable gas. During the start-up process of the cooling fan 8, the power is transmitted to the cleaning component and the vortex component through the transmission component. The cleaning component is controlled to rotate around the condenser 10 to wipe and clean the fins on the condenser tube 1001. The vortex component rotates inside the condenser tube 1001 to accelerate the flow of condensate and non-condensable gas.

[0051] S4: Condensate and non-condensable gas flow into the liquid cylinder body 1201 and the gas cylinder body 1202 through the liquid collection pipe 2001. During the process, the condensate temperature sensor 11 detects the temperature values ​​of the condensate and non-condensable gas and sends the data to the industrial computer. The dual differential pressure transmitter 14 measures the pressure difference between the non-condensable gas and the condensate through the liquid outlet pipe 1203, the liquid cylinder level measuring hose 1204, and the gas cylinder level measuring hose 1205. The above parameters are sent to the industrial computer for statistical calculation to obtain parameters such as the expansion superheat, dryness, and non-condensable gas content of the steam sample.

[0052] S5: After the test is completed, the controller 18 sends a signal to the second solenoid valve 13 and the fifth solenoid valve 17. The second solenoid valve 13 opens the channel between the gas cylinder body 1202 and the external environment, and the fifth solenoid valve 17 opens the backflow pipe 2101. The non-condensable gas flows out to the outside of the detector, and the condensate flows into the circulation pipe 1002 through the backflow pipe 2101. At this time, the second group of steam samples flows into the condenser pipe 1001 synchronously according to the steps of S2-S3. The condensate generated by the first group of steam samples carries away the heat of the second group of steam samples during the flow of the circulation pipe 1002 and is discharged through the drain pipe 1902. (When the detector is used to test a single group of steam samples, it is not necessary to use condensate to cool the subsequent steam samples. At this time, the fifth solenoid valve 17 can be kept closed, and the fourth solenoid valve 16 can be opened to allow the condensate to be discharged directly to the output end of the detector through the return pipe 2002.)

Claims

1. A steam quality detector, characterized in that: The device includes a cooling fan (8), a condenser (10), a gas-liquid collection and measurement device (12), a dual differential pressure transmitter (14), and a controller (18) installed in the housing of the detector. A liquid inlet pipe (1901) is connected between the liquid inlet end of the condenser (10) and the input end of the detector. A drain pipe (1902) is connected between the liquid inlet end of the condenser (10) and the output end of the detector. A collection pipe (2001) is connected between the liquid outlet end of the condenser (10) and the liquid inlet end of the gas-liquid collection and measurement device (12). A return pipe (2002) is connected between the liquid outlet end of the gas-liquid collection and measurement device (12) and the output end of the detector. The cooling fan (8) is used to accelerate the airflow on the surface of the condenser (10). The dual differential pressure transmitter (14) is connected to the gas-liquid collection and measurement device (12). The inlet pipe (1901) is sequentially equipped with a monitoring component, a superheating device (5), a superheated steam temperature sensor (6), and a No. 1 solenoid valve (7). The collection pipe (2001) is equipped with a condensate temperature sensor (11). The steam sample flows through the inlet pipe (1901) sequentially through the monitoring component, the superheating device (5), and the condenser (10), and then flows into the gas-liquid collection and measurement device (12) through the collection pipe (2001). A second solenoid valve (13) is installed on the gas-liquid collection and measurement device (12), a third solenoid valve (15) is installed on the drain pipe (1902), and a fourth solenoid valve (16) is installed on the return pipe (2002). The third solenoid valve (15) is used to open or close the drain pipe (1902), and the fourth solenoid valve (16) is used to open or close the return pipe (2002). The condensate in the gas-liquid collection and measurement device (12) flows into the output end of the detector through the return pipe (2002). The detector housing contains a transmission component and a cleaning component. A turbine component is installed on the condenser (10). The input end of the transmission component is connected to the output end of the cooling fan (8). The input end of the cleaning component is connected to the output end of the transmission component. The input end of the turbine component is connected to the output end of the transmission component. The cooling fan (8) drives the cleaning component to rotate around the condenser (10) through the transmission component. The cooling fan (8) drives the turbine component to rotate in the condenser (10) through the transmission component.

2. The steam quality detector according to claim 1, characterized in that: The monitoring components include a vapor pressure sensor (1), a throttling device (2), an expanded vapor pressure sensor (3), and an expanded vapor temperature sensor (4) installed sequentially on the inlet pipe (1901). The vapor pressure sensor (1) and the expanded vapor pressure sensor (3) are used to detect the pressure values ​​of the vapor samples flowing into and out of the throttling device (2), respectively. The expanded vapor temperature sensor (4) is used to detect the temperature of the vapor sample flowing out of the throttling device (2). The throttling device (2) is used to adjust the flow area of ​​the pipe.

3. A steam quality detector according to claim 2, characterized in that: The superheating device (5) includes a heater and a temperature control module. The superheating device (5) is used to heat the steam sample to a preset temperature value. The superheated steam temperature sensor (6) is used to detect the temperature value of the steam sample flowing out of the superheating device (5). The first solenoid valve (7) is used to open or close the liquid inlet pipe (1901). The condensate temperature sensor (11) is used to detect the temperature value of the steam sample flowing out of the condenser (10).

4. A steam quality detector according to claim 3, characterized in that: The gas-liquid collection and measuring device (12) includes a liquid cylinder body (1201) installed inside the housing of the detector, an air cylinder body (1202) installed inside the liquid cylinder, a liquid outlet pipe (1203) connected at one end to the liquid cylinder body (1201), a liquid cylinder level measuring hose (1204) connected at the other end of the liquid outlet pipe (1203), and an air cylinder level measuring hose (1205) connected to the air cylinder body (1202). The liquid inlet end of the liquid cylinder body (1201) is connected to the condenser (10) through a pipeline. The liquid outlet is connected, and the liquid level measuring hose (1204) and the air level measuring hose (1205) are both connected to the dual differential pressure transmitter (14). The second solenoid valve (13) is installed on the air cylinder body (1202). The second solenoid valve (13) is used to open or close the channel between the air cylinder body (1202) and the external environment. The dual differential pressure transmitter (14) on the air cylinder body (1202) is used to detect the pressure values ​​of the condensate in the liquid cylinder body (1201) and the non-condensable gas in the air cylinder body (1202).

5. A steam quality detector according to claim 4, characterized in that: The condenser (10) includes several condenser tubes (1001). One end of the condenser tube (1001) is connected to the superheater (5) through the liquid inlet pipe (1901), and the other end of the condenser tube (1001) is connected to the gas-liquid collection and measuring device (12) through the liquid collection pipe (2001). A circulation pipe (1002) is installed inside the condenser (1001). The outlet of the gas-liquid collection and measuring device (12) is connected to one end of the circulation pipe (1002) via a backflow pipe (2101). A No. 5 solenoid valve (17) is installed on the backflow pipe (2101). A second row of pipes (2102) is connected between the other end of the circulation pipe (1002) and the output end of the detector. A No. 5 solenoid valve (17) is installed on the second row of pipes (2102). The No. 5 solenoid valve (17) is used to open or close the backflow pipe (2101). The condensate can flow into the circulation pipe (1002) through the backflow pipe (2101).

6. A steam quality detector according to claim 5, characterized in that: The cooling fan (8) includes a primary motor (801) installed in the housing of the detector, a drive gear disk (802) installed on the output end of the primary motor (801), a drive gear ring (803) fixedly connected to the drive gear disk (802), a fan blade (804) movably connected to the housing of the detector, and a driven gear (805) fixedly installed on the fan blade (804). The driven gear (805) meshes with the drive gear disk (802). The primary motor (801) is used to drive the drive gear disk (802) and the drive gear ring (803) to rotate, and the drive gear disk (802) is used to drive the driven gear (805) and the fan blade (804) to rotate.

7. A steam quality detector according to claim 6, characterized in that: The transmission assembly includes a first transmission spur gear (9101), a third transmission spur gear (9104), a first transmission gear ring (9105), a fourth transmission spur gear (9106), a transmission gear sleeve (9108), a second transmission bevel gear (9111), a second transmission gear ring (9113), a seventh transmission spur gear (9114), and a third transmission gear ring (9115), all movably connected within the housing of the detector; a second transmission spur gear (9102) fixedly mounted on the first transmission spur gear (9101); a transmission gear chain (9103) meshing between the drive gear ring (803) and the second transmission spur gear (9102); and a fifth transmission gear fixedly connected to the fourth transmission spur gear (9106). A moving flat gear (9107), a sixth transmission flat gear (9109) fixedly connected to a transmission gear sleeve (9108), a first transmission bevel gear (9110) fixedly connected to the sixth transmission flat gear (9109), and a third transmission bevel gear (9112) fixedly connected to the second transmission bevel gear (9111), a transmission gear chain (9103), and a drive gear ring (803) are used to drive the second transmission flat gear (9102) and the first transmission flat gear (9101) to rotate. The first transmission flat gear (9101) meshes with the third transmission flat gear (9104), and the first transmission flat gear (9101) is used to drive the third transmission flat gear (9104) to rotate. The third transmission flat gear (9107) is used to drive the third transmission flat gear (9104) to rotate. 4) Engages with the No. 1 transmission gear ring (9105). The No. 3 transmission spur gear (9104) drives the No. 1 transmission gear ring (9105) to rotate. The No. 4 transmission spur gear (9106) meshes with the No. 1 transmission gear ring (9105). The No. 1 transmission gear ring (9105) drives the No. 4 transmission spur gear (9106) and the No. 5 transmission spur gear (9107) to rotate. The No. 5 transmission spur gear (9107) meshes with the transmission gear sleeve (9108). The No. 5 transmission spur gear (9107) drives the transmission gear sleeve (9108), the No. 6 transmission spur gear (9109), and the No. 1 transmission bevel gear (9110) to rotate. The No. 1 transmission bevel gear (9110) meshes with the No. 2 transmission bevel gear (9111). The No. 6 transmission spur gear (9109) meshes with the No. 7 transmission spur gear (9114). The No. 1 transmission bevel gear (9110) is used to drive the No. 2 transmission bevel gear (9111) and the No. 3 transmission bevel gear (9112) to rotate. The No. 6 transmission spur gear (9109) is used to drive the No. 7 transmission spur gear (9114) to rotate. The No. 3 transmission bevel gear (9112) meshes with the No. 2 transmission gear ring (9113). The No. 7 transmission spur gear (9114) meshes with the No. 3 transmission gear ring (9115). The No. 3 transmission bevel gear (9112) is used to drive the No. 2 transmission gear ring (9113) to rotate. The No. 7 transmission spur gear (9114) is used to drive the No. 3 transmission gear ring (9115) to rotate.

8. A steam quality detector according to claim 7, characterized in that: The cleaning assembly includes an external cleaning module (9201) and an internal cleaning module (9202). The external cleaning module (9201) is mounted on a second drive gear ring (9113), and the internal cleaning module (9202) is mounted on a third drive gear ring (9115). The second drive gear ring (9113) is used to drive the external cleaning module (9201) to rotate around the outside of the condenser (10), and the third drive gear ring (9115) is used to drive the internal cleaning module (9202) to rotate around the inside of the condenser (10). Both the external cleaning module (9201) and the internal cleaning module (9202) include a pole, a drive assembly mounted in the pole, and a brush head (9203) mounted on the output end of the drive assembly. The drive assembly is used to drive the brush head (9203) to extend or retract from the pole. The drive assembly includes a second motor (9204) mounted on the pole, a first linkage gear (9205) fixedly mounted on the output end of the second motor (9204), several second linkage gears (9206) movably connected to the pole, a linkage gear chain (9207) meshing between the several second linkage gears (9206), and a third linkage gear (9208) mounted on one of the second linkage gears (9206). The brush head (9203) is mounted on the second linkage gear. On the wheel (9206), the third linkage gear (9208) meshes with the first linkage gear (9205). The second motor (9204) is used to drive the first linkage gear (9205) to rotate. The first linkage gear (9205) is used to drive the third linkage gear (9208) and the corresponding second linkage gear (9206) to rotate. The third linkage gear (9208) drives the brush head (9203) to rotate through the second linkage gear (9206) and the linkage chain (9207).

9. A steam quality detector according to claim 8, characterized in that: The eddy current assembly includes an input gear (9301) movably connected to the condenser (10), an input rod (9302) fixedly connected to the input gear (9301), and a spiral blade (9303) mounted on the input rod (9302). The input rod (9302) is located inside the corresponding condenser tube (1001). The input gear (9301) meshes with a third transmission gear ring (9115), which is used to drive the input gear (9301), the corresponding input rod (9302), and the spiral blade (9303) to rotate.

10. A method for detecting steam quality, characterized in that: The steam quality detector as described in claim 9 includes the following steps: S1: During the continuous detection phase of the steam sample, the controller (18) sends signals to the first solenoid valve (7), the second solenoid valve (13), the third solenoid valve (15), the fourth solenoid valve (16), and the fifth solenoid valve (17), causing the first solenoid valve (7) to open the liquid inlet pipe (1901), the second solenoid valve (13) to close the channel between the gas cylinder body (1202) and the external environment, the third solenoid valve (15) to close the liquid outlet pipe (1902), the fourth solenoid valve (16) to close the return pipe (2002), and the fifth solenoid valve (17) to close the backflow pipe (2101). At the same time, the controller (18) also sends signals to the control unit of the cooling fan (8) and the dual differential pressure transmitter (14), causing them to start. S2: The first group of steam samples flows through the liquid inlet pipe (1901) in sequence through the steam pressure sensor (1), the throttling device (2), the steam pressure sensor after expansion (3), the steam temperature sensor after expansion (4), the superheating device (5), and the steam temperature sensor after superheating (6). The monitoring components and the steam temperature sensor after superheating (6) obtain the temperature and pressure parameters at each state point, measure the heating parameters of the superheating device (5), and send them to the industrial computer for statistical calculation. S3: The steam sample after overheating flows into the condenser (10). The fins on the condenser tube (1001) and the cooling fan (8) of the condenser (10) are used to dissipate heat, accelerate the condensation of the steam sample, and generate condensate and non-condensable gas. During the start-up process of the cooling fan (8), the power is transmitted to the cleaning component and the vortex component through the transmission component. The cleaning component is controlled to rotate around the condenser (10) to wipe and clean the fins on the condenser tube (1001). The vortex component rotates inside the condenser tube (1001) to accelerate the flow of condensate and non-condensable gas. S4: Condensate and non-condensable gas flow into the liquid cylinder body (1201) and gas cylinder body (1202) through the liquid collection pipe (2001). During the process, the condensate temperature sensor detects the temperature values ​​of the condensate and non-condensable gas and sends the data to the industrial computer. The dual differential pressure transmitter (14) measures the pressure difference between the non-condensable gas and the condensate through the liquid outlet pipe (1203) and the liquid cylinder level measuring hose (1204) and the gas cylinder level measuring hose (1205), and sends the above parameters to the industrial computer for statistical calculation to obtain parameters such as the expansion superheat, dryness, and non-condensable gas content of the steam sample. S5: After the test is completed, the controller (18) sends a signal to the second solenoid valve (13) and the fifth solenoid valve (17). The second solenoid valve (13) opens the channel between the gas cylinder body (1202) and the external environment, and the fifth solenoid valve (17) opens the backflow pipe (2101). The non-condensable gas flows out to the outside of the detector, and the condensate flows into the circulation pipe (1002) through the backflow pipe (2101). At this time, the second group of steam samples flows into the condenser pipe (1001) in sync according to the steps of S2-S3. The condensate generated by the first steam sample carries away the heat of the second group of steam samples during the flow of the circulation pipe (1002) and is discharged through the drain pipe (1902).

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