Cold-state performance test system for steam-water separation device

Abstract

The utility model discloses a steam-water separation device cold state performance test system, which comprises an experiment loop, a steam-water separation device, a liquid collector and a weighing device, and is characterized in that the experiment loop is connected with the steam-water separation device and is used for introducing a gas-liquid mixed medium into the steam-water separation device; the liquid collector is connected with a gas outlet of the steam-water separation device and is used for recovering liquid entrained in the separated gas; the weighing device comprises a first weighing machine and a second weighing machine, and the first weighing machine bears the steam-water separation device and is used for weighing the mass difference delta M1 of the steam-water separation device before and after operation; the second weighing device bears the liquid collector and is used for weighing the mass difference delta M2 of the liquid collector before and after operation. The accuracy of the performance test result of the steam-water separation device is remarkably improved, and the method can be suitable for the performance test of the steam-water separation device with high separation efficiency.

Description

Technical Field

[0001] This utility model relates to the field of steam-water separation technology, and in particular to a cold-state performance testing system for a steam-water separation device. Background Technology

[0002] Gas-liquid separators are used to separate gas from liquid in a gas-liquid mixture. The performance test results are of great reference value for improving and optimizing the separation component structure of the gas-liquid separator, and the separation efficiency is the main indicator parameter reflecting the performance of the gas-liquid separator.

[0003] The separation efficiency of a steam-water separator is generally characterized by the ratio of the liquid mass at the inlet to the outlet. However, existing cold-state performance testing systems for steam-water separators are inaccurate in measuring the liquid mass of each part before and after operation. Firstly, most existing testing systems neglect the liquid mass carried in the gas discharged from the outlet of the steam-water separator. This loss of liquid can lead to errors in the separation efficiency test results. Furthermore, the higher the separation efficiency of a steam-water separator, the smaller the droplet size at the outlet and the greater the amount of liquid carried in the gas discharged from the outlet, resulting in a larger liquid loss and a greater error in the separation efficiency test results. On the other hand, most existing testing systems rely on multiple installed flow meters to measure the liquid flow rate at the inlet and a weighing device installed on the collection tank to weigh the total mass of the separated liquid. The separation efficiency is then calculated using corresponding formulas. However, due to factors such as changes in inlet pressure and flow meter accuracy, the flow meter measurement results are prone to deviation. Additionally, due to factors such as liquid residue in the pipeline, the total mass of the separated liquid is prone to deviation, which in turn leads to inaccurate measurement results of the separation efficiency of the steam-water separator. Utility Model Content

[0004] To address the aforementioned technical problems, this application provides a cold-state performance testing system for a steam-water separator, resolving the issue of low accuracy in testing the separation efficiency of steam-water separators using existing systems. This application significantly improves the accuracy of performance testing results for steam-water separators and is applicable to performance testing of high-efficiency steam-water separators.

[0005] This application provides a cold-state performance testing system for a gas-liquid separator. The system includes an experimental circuit, a gas-liquid separator, a liquid collector, and a weighing device. The outlet of the experimental circuit is connected to the inlet of the gas-liquid separator for introducing a gas-liquid mixture into the gas-liquid separator. The gas-liquid separator separates the gas and liquid from the gas-liquid mixture. The liquid collector is connected to the outlet of the gas-liquid separator for recovering the liquid entrained in the separated gas. The weighing device includes a first weighing vessel and a second weighing vessel. The first weighing vessel carries the gas-liquid separator and is used to weigh the mass difference ΔM1 of the gas-liquid separator before and after system operation. The second weighing vessel carries the liquid collector and is used to weigh the mass difference ΔM2 of the liquid collector before and after system operation.

[0006] In some embodiments, the liquid collector includes a liquid collecting tube, a condensate assembly, and a gas guide tube. The liquid collecting tube is a cylindrical structure with an open top and is positioned vertically on the second weighing device. The condensate assembly includes multiple layers of porous metal filaments arranged in the inner cavity of the liquid collecting tube. Each layer of porous metal filaments is densely distributed across the cross-section of the liquid collecting tube and is configured to condense the liquid entrained in the gas. The inlet end of the gas guide tube is connected to the outlet of the gas-liquid separator, and the outlet end of the gas guide tube extends through the condensate assembly into the bottom of the inner cavity of the liquid collecting tube.

[0007] In some embodiments, the experimental circuit includes a dual-fluid nozzle, a spray cabinet, and a blower. The inlet end of the dual-fluid nozzle is connected to a water supply device and a compressed air supply device, respectively, and the outlet end of the dual-fluid nozzle is connected to the spray cabinet for spraying droplets with a preset particle size into the spray cabinet. The outlet end of the blower is connected to the air inlet of the spray cabinet, and the air outlet of the spray cabinet is connected to the inlet end of the gas-liquid separator. The blower is configured to blow air into the spray cabinet to mix the droplets with air to form a gas-liquid mixture, and the formed gas-liquid mixture is then introduced into the gas-liquid separator.

[0008] In some embodiments, the water supply device includes a water tank, a water pump, a first flow control component, and a first thermometer, wherein the water tank stores water; the water pump injects water from the water tank into the inlet end of the dual-fluid nozzle through a water supply pipeline; the first flow control component is disposed on the water supply pipeline and is used to control the water inflow to the dual-fluid nozzle; the first thermometer is disposed at the outlet end of the water supply pipeline and is used to detect the temperature of the water injected into the dual-fluid nozzle.

[0009] In some embodiments, the first flow control component includes a return water pipe and a first flow control valve, wherein the return water pipe is connected between the inlet end of the water tank and the outlet end of the water pump, for allowing a portion of the water to flow back to the water tank to balance the pressure of the water supply pipe; the first flow control valve is disposed on the return water pipe for controlling the amount of return water.

[0010] In some embodiments, the first flow control component further includes a second flow control valve and a first flow meter, wherein the second flow control valve is disposed on the water supply pipeline and is connected in parallel with the return water pipeline to the outlet end of the water pump for controlling the water inlet flow of the dual-fluid nozzle; the first flow meter is disposed on the water supply pipeline and is located between the second flow control valve and the first thermometer for monitoring the water inlet flow of the dual-fluid nozzle.

[0011] In some embodiments, the compressed air supply device includes an air compressor, a second flow control component, and a second thermometer, wherein the air compressor injects compressed air into the inlet end of the dual-fluid nozzle through an air supply pipeline; the second flow control component is disposed on the air supply pipeline and is used to control the air intake volume of the dual-fluid nozzle; the second thermometer is disposed at the outlet end of the air supply pipeline and is used to detect the temperature of the compressed air injected into the dual-fluid nozzle.

[0012] In some embodiments, the blower includes a blower, a third flow control component, and a third thermometer, wherein the blower injects air into the air inlet of the spray cabinet through a ventilation duct; the third flow control component is disposed on the ventilation duct and is used to control the air intake of the spray cabinet; the third thermometer is disposed at the air outlet of the ventilation duct and is used to detect the temperature of the air injected into the spray cabinet.

[0013] In some embodiments, the system further includes a visualization tube section and a laser particle size analyzer, wherein the visualization tube section is connected between the outlet end of the experimental loop and the inlet end of the gas-liquid separation device, and the visualization tube section is configured to display the gas-liquid mixture medium introduced into the gas-liquid separation device; the laser particle size analyzer is provided corresponding to the visualization tube section and is used to monitor the droplet size in the gas-liquid mixture medium.

[0014] In some embodiments, the system further includes a measurement and control device, which is electrically connected to the experimental circuit, the steam-water separation device, and the weighing device. The measurement and control device is configured to collect, process, and save various parameters during the operation of the system and control the operation of the system.

[0015] The cold-state performance testing system for a steam-water separator provided in this application uses a first weighing device to measure the mass difference ΔM1 of the steam-water separator before and after system operation, a liquid collector to recover liquid droplets entrained in the gas flow discharged from the outlet of the steam-water separator, and a second weighing device to measure the mass difference ΔM2 of the liquid collector before and after system operation. Based on the measured values ​​of ΔM1 and ΔM2, the separation efficiency ε of the steam-water separator is calculated. This system avoids mass errors caused by liquid residue on the inner wall of the steam-water separator's pipes when the liquid collection tank is weighed separately, avoids liquid flow errors caused by pressure changes at the inlet of the steam-water separator and the accuracy of the flow meter, and also avoids mass errors caused by liquid entrainment in the gas discharged from the outlet of the steam-water separator. This significantly improves the accuracy of the steam-water separator performance test results and is applicable to the performance testing of high-efficiency steam-water separators. Attached Figure Description

[0016] The technical solution of this application will be further described below with reference to the accompanying drawings and embodiments. In the accompanying drawings:

[0017] Figure 1 This is a schematic diagram of the overall structure of one embodiment of the cold-state performance testing system for the steam-water separation device of this application;

[0018] Figure 2 This is a schematic diagram of the liquid collector structure of one embodiment of the cold performance testing system for the gas-water separation device of this application. Detailed Implementation

[0019] To make the objectives, technical solutions, and effects of this utility model clearer and more explicit, the technical solutions of this utility model will be further described in detail below through specific embodiments. It should be understood that the specific embodiments described herein are only used to explain this utility model and are not intended to limit this utility model.

[0020] Please see Figure 1 In some embodiments of this application, a cold-state performance testing system for a vapor-water separator is provided. The system includes an experimental circuit 1, a vapor-water separator 2, a liquid collector 3, and a weighing device 4. The outlet end of the experimental circuit 1 is connected to the inlet end of the vapor-water separator 2 for introducing a gas-liquid mixture into the vapor-water separator 2.

[0021] The gas-liquid separator 2 is used to separate the gas and liquid in a gas-liquid mixture. The gas-liquid separator 2 includes a separator body 21, a gas outlet 22 located at the upper end of the separator body 21 in the direction of gravity, and a liquid collection tank 23 located at the lower end of the separator body 21 in the direction of gravity. The liquid collection tank 23 is connected to the outlet end at the lower part of the separator body 21. During operation, the separated gas is discharged outward through the gas outlet 22, and the separated liquid flows to the liquid collection tank 23 through the outlet end.

[0022] The liquid collector 3 is connected to the gas outlet 22 of the gas-water separator 2 and is used to recover the liquid entrained in the separated gas.

[0023] The weighing device 4 includes a first weighing device 41 and a second weighing device 42. The first weighing device 41 carries the steam-water separation device 2 and is used to weigh the mass difference ΔM1 of the steam-water separation device 2 before and after the system is running. The second weighing device 42 carries the liquid collector 3 and is used to weigh the mass difference ΔM2 of the liquid collector 3 before and after the system is running.

[0024] The formula for calculating the separation efficiency ε of the steam-water separator 2 is:

[0025] The cold-state performance testing system for the steam-water separator provided in this application measures the mass difference ΔM1 of the steam-water separator 2 before and after system operation using a first weighing device 41, recovers the liquid droplets entrained in the gas flow discharged from the outlet 22 of the steam-water separator 2 using a liquid collector 3, and measures the mass difference ΔM2 of the liquid collector 3 before and after system operation using a second weighing device 42. Based on the values ​​of ΔM1 and ΔM2 obtained from the weighing, the separation efficiency ε of the steam-water separator 2 is calculated.

[0026] The value of ΔM1 accurately reflects the total mass of all liquids collected in the steam-water separator 2. Compared with the method of weighing separately using the liquid collection tank 23, it effectively avoids the mass error caused by liquid residue on the inner wall of the steam-water separator 2 pipe.

[0027] The value of ΔM2 measures the total mass of liquid entrained in the gas discharged from the outlet 22. That is, the value of ΔM1+ΔM2 truly reflects the total mass of all liquid entering the inlet of the gas-water separator 2. Compared with the method of measuring with a flow meter, it effectively avoids liquid flow error caused by pressure changes at the inlet of the gas-water separator 2 and the accuracy of flow meter measurement. It also avoids mass error caused by entrained liquid in the gas discharged from the outlet 22 of the gas-water separator 2, which significantly improves the accuracy of the performance test results of the gas-water separator 2 and can be applied to the performance test of the gas-water separator 2 with high separation efficiency.

[0028] Please see Figure 2 In some embodiments, the liquid collector 3 includes a liquid collecting pipe 31, a condensate assembly 32, and a gas guide pipe 33. The liquid collecting pipe 31 is a cylindrical structure with an open top and sits vertically on the second weighing device 42.

[0029] The condensate assembly 32 includes porous metal velvet 322 arranged in multiple layers in the inner cavity of the liquid collection pipe 31. Each layer of porous metal velvet 322 is densely distributed on the cross-section of the liquid collection pipe 31. The porous metal velvet 322 is configured to cause the liquid entrained in the gas discharged from the gas outlet 22 to condense, preventing the liquid from escaping out of the system with the gas flow.

[0030] The inlet end of the air guide pipe 33 is connected to the outlet 22 of the gas-water separator 2, and the outlet end of the air guide pipe 33 passes through the condensate assembly 32 and extends into the bottom of the inner cavity of the liquid collection pipe 31.

[0031] The porous metal filament 322 is made of fine interwoven metal wires, forming a large number of micropore structures and complex channel structures. This structure significantly increases the specific surface area of ​​the condenser assembly 32 in contact with the liquid, which can effectively intercept liquid particles or droplets entrained in the airflow and promote the condensation or adsorption of the liquid.

[0032] During operation of the gas-liquid separator 2, a small amount of liquid inevitably mixes with the gas discharged through the gas outlet 22. This liquid is guided by the airflow through the gas guide pipe 33 and flows directly into the bottom of the inner cavity of the liquid collection pipe 31. Since the upper end of the liquid collection pipe 31 is open, this liquid flows from bottom to top through the porous metal velvet 322 in the inner cavity of the liquid collection pipe 31 with the airflow. During the flow, it gradually condenses on the layered porous metal velvet 322, preventing the separated liquid from escaping out of the system. The gas, after passing through the multiple layers of metal velvet, escapes out of the system from the opening at the top of the liquid collection pipe 31.

[0033] Porous metal velvet 322 preferably uses stainless steel metal velvet to avoid corrosion.

[0034] Please see Figure 2 In some embodiments, the condensate assembly 32 includes multiple metal mesh baskets 321. Each metal mesh basket 321 is a box structure with densely packed mesh openings, and a through hole (not shown) is provided through the metal mesh basket 321 for the gas guide tube 33 to pass through. The outer diameter of the metal mesh basket 321 matches the inner diameter of the liquid collection tube 31. The multiple metal mesh baskets 321 are axially arranged at equal intervals in the inner cavity of the liquid collection tube 31, and each metal mesh basket 321 is filled with porous metal velvet 322.

[0035] Porous metal velvet 322 is filled in the metal mesh basket 321, realizing the layered arrangement of porous metal velvet 322 in the inner cavity of the liquid collection tube 31, and the air guide tube 33 is limited to the through hole of the metal mesh basket 321, effectively avoiding the shaking of the air guide tube 33 during system operation.

[0036] The metal mesh basket 321 is preferably made of stainless steel mesh, which ensures breathability while preventing rust.

[0037] Please see Figure 1 In some embodiments, the experimental circuit 1 includes a dual-fluid nozzle 11, a spray cabinet 12, and a blower 13. The inlet end of the dual-fluid nozzle 11 is connected to a water supply device 14 and a compressed air supply device 15, respectively, and the outlet end of the dual-fluid nozzle 11 is connected to the spray cabinet 12 for spraying droplets with a preset particle size into the spray cabinet 12.

[0038] The outlet end of the blower 13 is connected to the air inlet 121 of the spray cabinet 12, and the air outlet 122 of the spray cabinet 12 is connected to the inlet end of the steam-water separator 2. The blower 13 is configured to blow air into the spray cabinet 12 so that the liquid droplets in the spray cabinet 12 mix with the air to form a gas-liquid mixture, and the formed gas-liquid mixture is introduced into the steam-water separator 2.

[0039] In existing technologies, single-fluid nozzles are generally used to spray droplets into the spray cabinet 12. This means the nozzle inlet is only connected to the water supply device 14. The droplet size from this type of single-fluid nozzle is significantly affected by changes in water pressure, flow velocity, and flow rate of the water supply device 14. During long-term operation, it is difficult to ensure that the droplet size consistently meets requirements. Furthermore, the influence of inlet medium conditions with different droplet sizes on the separation performance of the steam-water separator 2 exhibits certain patterns. Existing single-fluid nozzle designs cannot precisely control the droplet size, which limits in-depth research on the performance of the steam-water separator 2 under different droplet sizes.

[0040] To address the aforementioned issues, the experimental circuit 1 of this application utilizes a dual-fluid nozzle 11. Based on the coordinated operation of the water supply device 14 and the compressed air supply device 15, precise control of the ejected droplet size is achieved. This ensures that during the operation of the experimental circuit 1, the dual-fluid nozzle 11 consistently ejects droplets of the required preset size into the spray cabinet 12, thus meeting the need for in-depth research on the performance of the gas-water separator 2 under different droplet sizes.

[0041] Please see Figure 1 Preferably, the air inlet 121 of the spray cabinet 12 is correspondingly set with the air outlet 122 of the spray cabinet 12, and the outlet end of the dual fluid nozzle 11 is set perpendicular to the virtual connection between the air inlet 121 and the air outlet 122 of the spray cabinet 12, so that the blower 13 can blow air towards the droplets on one side of the droplet ejection direction, so that the droplets can be fully mixed with the air to form a gas-liquid mixture, and the formed gas-liquid mixture is directly blown towards the inlet end of the gas-liquid separator 2, which significantly improves the uniformity of the gas-liquid mixture and reduces the adhesion of the gas-liquid mixture in the spray cabinet 12.

[0042] Please see Figure 1In some embodiments, the water supply device 14 includes a water tank 141, a water pump 142, a first flow control component (not shown), and a first thermometer 143. The water tank 141 stores water. The water pump 142 can be a centrifugal pump, which draws water from the water tank 141 through a water supply pipeline 144 and injects the water into the inlet end of the dual-fluid nozzle 11 under centrifugal force. The first flow control component is disposed on the water supply pipeline 144 and is used to control the water inflow into the dual-fluid nozzle 11. The first thermometer 143 is disposed at the outlet end of the water supply pipeline 144 and is used to detect the temperature of the water injected into the dual-fluid nozzle 11, i.e., the water-side temperature at the inlet end of the dual-fluid nozzle 11.

[0043] The water supply device 14 of this application controls the water inlet flow of the dual-fluid nozzle 11 through the first flow control component and detects the water-side temperature at the inlet of the dual-fluid nozzle 11 through the first thermometer 143, thereby achieving precise adjustment of the pressure, flow rate and velocity of the medium output from the water supply pipeline 144 and precise detection of water temperature changes. In turn, it works in coordination with the compressed air supply device 15 to achieve precise control of the droplet size ejected from the dual-fluid nozzle 11 and controllable adjustment of droplet size changes.

[0044] The first thermometer 143 can be a temperature sensing device such as a thermocouple, which can accurately detect changes in the temperature of the water flow.

[0045] Please see Figure 1 In some embodiments, the first flow control component includes a return water pipe 145 and a first flow control valve 146. The return water pipe 145 is connected between the inlet end of the water tank 141 and the outlet end of the water pump 142, and is used to allow a portion of the water to flow back to the water tank 141 to balance the pressure of the water supply pipe 144. The first flow control valve 146 is disposed on the return water pipe 145 and is used to control the amount of return water.

[0046] During the operation of the water pump 142, the amount of water returning to the water tank 141 can be controlled by the opening of the first flow control valve 146, thereby balancing the pressure of the water supply pipeline 144, preventing large fluctuations in the water pressure at the inlet of the dual-fluid nozzle 11, ensuring that the size of the sprayed droplets always meets the requirements, and significantly improving the operational stability and reliability of the dual-fluid nozzle 11.

[0047] Please see Figure 1In some embodiments, the first flow control assembly further includes a second flow control valve 147 and a first flow meter 148. The second flow control valve 147 is disposed on the water supply pipeline 144 and is connected in parallel with the return water pipeline 145 to the outlet end of the water pump 142, for controlling the water inflow of the dual-fluid nozzle 11. The first flow meter 148 is disposed on the water supply pipeline 144 and is located between the second flow control valve 147 and the first thermometer 143, for monitoring the water inflow of the dual-fluid nozzle 11.

[0048] During the operation of the water pump 142, the amount of water flowing to the inlet of the dual-fluid nozzle 11 can be controlled by the opening degree of the second flow control valve 147, thereby achieving control of the water inlet of the dual-fluid nozzle 11. The first flow control valve 146 and the second flow control valve 147 can cooperate to achieve water flow diversion and water pressure balance regulation at the outlet of the water pump 142.

[0049] Please see Figure 1 In some embodiments, the compressed air supply device 15 includes an air compressor 151, a second flow control component (not shown), and a second thermometer 152. The air compressor 151 injects compressed air into the inlet end of the dual-fluid nozzle 11 via an air supply line 153. The second flow control component is disposed on the air supply line 153 and is used to control the air intake volume of the dual-fluid nozzle 11. The second thermometer 152 is disposed at the outlet end of the air supply line 153 and is used to detect the temperature of the compressed air injected into the dual-fluid nozzle 11, i.e., the compressed air side temperature at the inlet end of the dual-fluid nozzle 11.

[0050] The compressed air supply device 15 of this application controls the amount of compressed air injected at the inlet of the dual-fluid nozzle 11 through the second flow control component and detects the temperature of the compressed air side at the inlet of the dual-fluid nozzle 11 through the second thermometer 152, thereby achieving precise adjustment of the pressure, flow rate and velocity of the medium output from the air supply pipeline 153, and precise detection of compressed air temperature changes. In turn, it works in coordination with the water supply device 14 to achieve precise control of the droplet size ejected from the dual-fluid nozzle 11 and controllable adjustment of droplet size changes.

[0051] Please see Figure 1 In some embodiments, the second flow control component includes a third flow control valve 154 and a second flow meter 155. The third flow control valve 154 is disposed on the air supply line 153 and connected downstream of the air compressor 151 outlet, and is used to control the compressed air intake of the dual-fluid nozzle 11. The second flow meter 155 is disposed on the air supply line 153, and is located between the third flow control valve 154 and the second thermometer 152, and is used to monitor the compressed air intake of the dual-fluid nozzle 11.

[0052] During the operation of the air compressor 151, the amount of compressed air flowing to the inlet of the dual-fluid nozzle 11 can be controlled by the opening degree of the third flow control valve 154, thereby realizing the control of the compressed air intake of the dual-fluid nozzle 11.

[0053] The second thermometer 152 can be a temperature sensing device such as a thermocouple, which can accurately detect temperature changes in compressed air.

[0054] Please see Figure 1 In some embodiments, the blower 13 includes a blower 131, a third flow control component (not shown), and a third thermometer 132. The blower 131 injects air into the air inlet 121 of the spray cabinet 12 through a ventilation duct 133. The third flow control component is disposed on the ventilation duct 133 and is used to control the air intake of the spray cabinet 12. The third thermometer 132 is disposed at the air outlet of the ventilation duct 133 and is used to detect the temperature of the air injected into the spray cabinet 12.

[0055] The blower device 13 of this application controls the air injection volume of the air inlet 121 of the spray cabinet 12 through the third flow control component and detects the temperature of the air injected into the air inlet 121 of the spray cabinet 12 through the third thermometer 132, so as to achieve precise adjustment of the pressure, flow rate and flow velocity of the medium output from the ventilation duct 133 and achieve precise detection of the airflow temperature. In conjunction with the dual-fluid nozzle 11, the air injected into the spray cabinet 12 can be fully mixed with the liquid droplets to form a gas-liquid mixture, and the gas-liquid mixture is sent into the gas-water separator 2 by the wind force of the blower 131.

[0056] The blower 131 can be a Roots blower. The third flow control component includes a fourth flow control valve 134 and a third flow meter 135. The fourth flow control valve 134 is installed on the ventilation duct 133 and connected downstream of the outlet of the blower 131, and is used to control the air intake volume of the air inlet 121 of the spray cabinet 12. The third flow meter 135 is installed on the ventilation duct 133, and is located between the fourth flow control valve 134 and the third thermometer 132, and is used to monitor the air intake volume of the spray cabinet 12.

[0057] During the operation of blower 131, the air volume of air inlet 121 of spray cabinet 12 can be controlled by the opening degree of fourth flow control valve 134, thereby realizing the control of air intake volume of spray cabinet 12.

[0058] The third thermometer 132 can be a temperature sensing device such as a thermocouple, which can accurately detect changes in airflow temperature.

[0059] Please see Figure 1In some embodiments, the cold-state performance testing system for the gas-liquid separator provided in this application further includes a visualization tube section 5 and a laser particle size analyzer 6. The visualization tube section 5 is connected between the outlet end of the experimental loop 1 and the inlet end of the gas-liquid separator 2, and is configured to display the gas-liquid mixture medium introduced into the gas-liquid separator 2. The laser particle size analyzer 6 is provided corresponding to the visualization tube section 5 and is used to monitor the droplet size in the gas-liquid mixture medium.

[0060] The air outlet 122 of the spray cabinet 12 is connected to the inlet of the gas-liquid separator 2 via the mixed medium output pipeline 7. The visualization pipe section 5 is connected to the middle section of the mixed medium output pipeline 7 via a connecting flange. The pipe body of the visualization pipe section 5 is made of transparent materials such as glass or acrylic, allowing the testing personnel to directly observe the state of the gas-liquid mixed medium through the visualization pipe section, facilitating timely monitoring of the experimental circuit's operating status. Furthermore, this application uses a laser particle size analyzer 6 to monitor the gas-liquid mixed medium flowing through the visualization pipe section 5 in real time, thereby achieving automated detection of droplet size in the gas-liquid mixed medium. This allows for adaptive adjustment of various parameters of the experimental circuit according to the droplet size detection requirements.

[0061] Please see Figure 1 In some embodiments, the gas-water separation device 2 further includes a first differential pressure gauge 24 and a second differential pressure gauge 25. The first differential pressure gauge 24 is connected between the inlet end and the outlet end of the primary separation component 211 of the separation device body 21 and is used to measure the primary pressure drop. The second differential pressure gauge 25 is connected between the inlet end and the outlet end of the secondary separation component 212 of the separation device body 21 and is used to measure the secondary pressure drop.

[0062] Please see Figure 1 In some embodiments, the cold-state performance testing system for the gas-water separation device provided in this application further includes a measurement and control device 8. The measurement and control device 8 is electrically connected to electrical equipment such as the experimental circuit 1, the gas-water separation device 2, the weighing device 4, and the laser particle size analyzer 6. The measurement and control device 8 is configured to collect, process, and save various parameters during the operation of the system and control the operation of the system.

[0063] The measurement and control device 8 can be an industrial control computer, PLC, computer, etc. The measurement and control device 8 is electrically connected to the first flow meter 148, the first thermometer 143, the second flow meter 155, the second thermometer 152, the third flow meter 135, and the third thermometer 132 in the experimental circuit 1 through corresponding signal cables to collect parameters such as the flow rate and temperature of the medium output from the corresponding pipelines of the water supply device 14, the compressed air supply device 15, and the blower device 13. The measurement and control device 8 is electrically connected to the first differential pressure gauge 24 and the second differential pressure gauge 25 in the steam-water separator 2 through corresponding signal cables to collect parameters such as the first-stage pressure drop and the second-stage pressure drop of the steam-water separator 2. The measurement and control device 8 is electrically connected to the first weighing device 41 and the second weighing device 42 of the weighing device 4 through corresponding signal cables to collect the overall mass difference ΔM1 of the steam-water separator 2 before and after system operation, and the overall mass difference ΔM2 of the liquid collector 3 before and after system operation, and then calculate the separation efficiency ε of the steam-water separator 2 based on the aforementioned formula.

[0064] The measurement and control device 8 is electrically connected to the water pump 142, the first flow control valve 146, the second flow control valve 147, the air compressor 151, and the third flow control valve 154 in the experimental loop 1 through corresponding control circuits, so as to control the flow rate and pressure of the medium output from the corresponding pipelines of the water supply device 14 and the compressed air supply device 15, thereby realizing the controllable adjustment of the droplet particle size sprayed by the dual-fluid nozzle 11; the measurement and control device 8 is electrically connected to the blower 131 and the fourth flow control valve 134 in the experimental loop 1 through corresponding control circuits, so as to control the flow rate and pressure of the airflow output from the ventilation pipeline 133 of the blower device 13, thereby realizing the full mixing of droplets and air in the spray cabinet 12, and sending the formed gas-liquid mixed medium into the steam-water separator 2 through the mixed medium output pipeline 7; the measurement and control device 8 is electrically connected to the steam-water separator 2 through corresponding control circuits, so as to control the operation of the steam-water separator 2.

[0065] The measurement and control device 8 is electrically connected to the laser particle size analyzer 6 via a corresponding signal cable to collect the actual parameters of the droplet size in the gas-liquid mixture output from the experimental loop 1, and compares the actual droplet size with the preset size. When the collected actual droplet size does not match the system's preset droplet size, the measurement and control device 8 automatically adjusts the opening of the corresponding flow control valve in the experimental loop 1, as well as the operating parameters of equipment such as the water pump 142, air compressor 151, and blower 131, to correct the droplet size ejected from the dual-fluid nozzle 11.

[0066] In actual testing, the preset droplet size of the dual-fluid nozzle 11 is first set in the control system program of the measurement and control device 8. After starting the blower 131, the flow ratio of water to compressed air output from the water supply device 14 and the compressed air supply device 15 is adjusted to ensure that the droplet size in the gas-liquid mixture flowing through the visualization pipe section 5 meets the experimental requirements. Then, the gas-liquid separator 2 is connected to test the gas-liquid separation performance under the specified droplet size. During the test, different droplet sizes can be set in different experiments to test the medium state parameters at the inlet and outlet of the gas-liquid separator 2 under each test condition, thereby evaluating the performance of the gas-liquid separator 2.

[0067] In some embodiments, the air temperature injected by the blower 13 into the air inlet of the spray cabinet 12 is preferably controlled within the normal temperature range, and the air temperature change is monitored in real time by a third thermometer 132 during the detection process; the water temperature injected by the water supply device 14 into the water side of the inlet end of the dual-fluid nozzle 11 is preferably controlled within the normal temperature range, and the water temperature change is monitored in real time by a first thermometer 143 during the detection process; the compressed air temperature injected by the compressed air supply device 15 into the compressed air side of the inlet end of the dual-fluid nozzle 11 is preferably controlled within the normal temperature range, and the compressed air temperature change is monitored in real time by a second thermometer 152 during the detection process. The normal temperature is generally 15℃~25℃.

[0068] The cold-state performance testing system for the steam-water separator provided in this application significantly reduces the temperature of the gas-liquid mixture introduced into the steam-water separator 2 in the experimental circuit 1 by controlling the temperature of the gas phase medium (including air injected by the blower 13 and compressed air injected by the compressed air supply device 15) and the liquid phase medium (water injected by the water supply device 14) injected into the spray cabinet 12. This enables the steam-water separator to operate under cold-state medium conditions, which not only reduces the performance requirements of the steam-water separator and shortens the separation performance testing time, but also improves the testing efficiency. Furthermore, it can verify the separation performance of the steam-water separator under cold-state medium conditions, thereby providing guidance for improving the structure of the separation components of the steam-water separator.

[0069] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A cold performance test system for a steam and water separation device, characterized by, The system includes an experimental circuit (1), a vapor-liquid separator (2), a liquid collector (3), and a weighing device (4), wherein, The outlet end of the experimental circuit (1) is connected to the inlet end of the gas-liquid separator (2) for introducing a gas-liquid mixture into the gas-liquid separator (2); The gas-liquid separator (2) is used to separate the gas and liquid in the gas-liquid mixture; The liquid collector (3) is connected to the gas outlet (22) of the gas-water separator (2) and is used to recover the liquid entrained in the separated gas. The weighing device (4) includes a first weighing device (41) and a second weighing device (42). The first weighing device (41) carries the vapor-water separation device (2) and is used to weigh the mass difference ΔM1 of the vapor-water separation device (2) before and after the system is running. The second weighing device (42) carries the liquid collector (3) and is used to weigh the mass difference ΔM2 of the liquid collector (3) before and after the system is running.

2. The cold performance test system of a steam-water separation device according to claim 1, characterized in that, The liquid collector (3) includes a liquid collecting pipe (31), a condensate assembly (32), and a gas guide pipe (33), wherein, The liquid collection tube (31) is a cylindrical structure with an open top, and the liquid collection tube (31) is positioned vertically on the second weighing device (42). The condensate assembly (32) includes porous metal wool (322) arranged in multiple layers in the inner cavity of the liquid collecting pipe (31). Each layer of porous metal wool (322) is densely distributed on the cross-section of the liquid collecting pipe (31) and is configured to condense the liquid entrained in the gas. The inlet end of the air guide pipe (33) is connected to the outlet (22) of the gas-water separator (2), and the outlet end of the air guide pipe (33) passes through the condensate assembly (32) and extends into the bottom of the inner cavity of the liquid collection pipe (31).

3. The cold performance test system of a steam-water separation device according to claim 1, characterized in that, The experimental circuit (1) includes a dual-fluid nozzle (11), a spray cabinet (12), and a blower (13), wherein, The inlet end of the dual-fluid nozzle (11) is connected to the water supply device (14) and the compressed air supply device (15) respectively, and the outlet end of the dual-fluid nozzle (11) is connected to the spray cabinet (12) for spraying droplets with a preset particle size into the spray cabinet (12). The outlet end of the blower (13) is connected to the air inlet (121) of the spray cabinet (12), and the air outlet (122) of the spray cabinet (12) is connected to the inlet end of the gas-liquid separator (2). The blower (13) is configured to blow air into the spray cabinet (12) so that the droplets mix with air to form a gas-liquid mixture, and the formed gas-liquid mixture is introduced into the gas-liquid separator (2).

4. The cold-state performance testing system for the steam-water separator according to claim 3, characterized in that, The water supply device (14) includes a water tank (141), a water pump (142), a first flow control component, and a first thermometer (143), wherein, The water tank (141) stores water; the water pump (142) injects the water in the water tank (141) into the inlet end of the dual-fluid nozzle (11) through the water pipeline (144); The first flow control component is disposed on the water supply pipeline (144) and is used to control the water inlet volume of the dual-fluid nozzle (11); The first thermometer (143) is located at the outlet end of the water supply pipeline (144) and is used to detect the temperature of the water injected into the dual-fluid nozzle (11).

5. The cold performance test system of a steam-water separation device according to claim 4, characterized in that, The first flow control component includes a return water pipe (145) and a first flow control valve (146), wherein, The return water pipe (145) is connected between the inlet end of the water tank (141) and the outlet end of the water pump (142) to allow some water to flow back to the water tank (141) to balance the pressure of the water supply pipe (144); the first flow control valve (146) is installed on the return water pipe (145) to control the amount of return water.

6. The cold performance test system of a steam-water separation device according to claim 5, characterized in that, The first flow control assembly further includes a second flow control valve (147) and a first flow meter (148), wherein, The second flow control valve (147) is installed on the water supply pipeline (144). The second flow control valve (147) and the return water pipeline (145) are connected in parallel to the outlet end of the water pump (142) to control the water inlet of the dual-fluid nozzle (11). The first flow meter (148) is installed on the water supply pipeline (144). The first flow meter (148) is located between the second flow control valve (147) and the first thermometer (143) and is used to monitor the water inlet of the dual-fluid nozzle (11).

7. The cold performance test system of a steam-water separation device according to claim 3, characterized in that, The compressed air supply device (15) includes an air compressor (151), a second flow control component, and a second thermometer (152), wherein, The air compressor (151) injects compressed air into the inlet end of the dual-fluid nozzle (11) through the air supply line (153); The second flow control component is disposed on the gas supply pipeline (153) and is used to control the air intake of the dual-fluid nozzle (11); The second thermometer (152) is located at the outlet of the gas supply line (153) and is used to detect the temperature of the compressed air injected into the dual-fluid nozzle (11).

8. The cold performance test system of a steam-water separation device according to claim 3, characterized in that, The blower device (13) includes a blower (131), a third flow control component, and a third thermometer (132), wherein, The blower (131) injects air into the air inlet (121) of the spray cabinet (12) through the ventilation duct (133); The third flow control component is installed on the ventilation duct (133) and is used to control the air intake of the spray cabinet (12); The third thermometer (132) is installed at the air outlet of the ventilation duct (133) and is used to detect the temperature of the air injected into the spray cabinet (12).

9. The cold performance test system of a steam-water separation device according to claim 1, characterized in that, The system also includes a visualization pipe section (5) and a laser particle size analyzer (6), wherein, The visualization section (5) is connected between the outlet end of the experimental circuit (1) and the inlet end of the gas-liquid separator (2). The visualization section (5) is configured to display the gas-liquid mixture medium introduced into the gas-liquid separator (2). The laser particle size analyzer (6) is set in relation to the visualization pipe section (5) and is used to monitor the droplet size in the gas-liquid mixture.

10. The cold performance test system of a steam-water separation device according to claim 1, characterized in that, The system also includes a measurement and control device (8), which is electrically connected to the experimental circuit (1), the steam-water separation device (2), and the weighing device (4). The measurement and control device (8) is configured to collect, process, and save various parameters during the operation of the system and control the operation of the system.

Images