Visual analysis and testing system for working fluid emission characteristics in closed condensers

Abstract

A visual analysis and testing system for the discharge characteristics of working fluids in a closed condenser relates to the technical field of additional fluid discharge from condensers in energy and power systems. This is to solve the problem that during the existing simulation test of the condenser, the interior of the condenser cannot be visually observed, and since the baffles inside the condenser are directly welded to the shell, the performance of the baffles at different inclination angles cannot be tested. By adopting a detachable working fluid discharge unit structure, the baffles in the detachable working fluid discharge unit on the closed condenser can be replaced, thereby testing the performance of the baffles at different inclination angles, greatly reducing the experimental time and experimental costs; finally, this application adopts a miniature underwater camera provided in the upper, middle and lower layers of the closed condenser, respectively, and the flow pattern and flow field are photographed by the miniature underwater camera to achieve visual observation of the interior of the condenser. The present invention is applicable to the field of closed condenser detection technology.

Description

Technical Field

[0001] The present invention relates to the technical field of additional fluid discharge of a condenser of an energy power system, and in particular to a visual analysis and testing system for discharge characteristics of a working medium in a closed condenser. Background Art

[0002] As one of the most critical components of the energy and power system, the cold-end system plays a vital role in maintaining turbine back pressure and ensuring efficient operation of the energy and power cycle. As the sole cooling source for the entire system, it also handles the discharge and condensation of various drains, exhaust steam, and other gases. However, the discharge of these exhaust steam and drains can potentially damage the condenser and its internal heat exchange tube bundles, threatening the condenser's operational safety and efficiency. Therefore, it is necessary to test and analyze the drain and exhaust steam discharge characteristics at various energy levels within the condenser.

[0003] Since there are many types of working fluids discharged into the condenser, including steam, subcooled water, high-temperature water, superheated water, etc., and the discharge amounts of different working fluids are also different, this puts higher demands on the working fluid supply system of the experimental system. It costs a lot of money to provide working fluids that meet the above conditions, and the system's additional system volume is very large.

[0004] In addition, due to the large number of tube bundles in the condenser, the space left for additional fluid discharge baffles is extremely limited, so the baffles are generally welded directly into the condenser at one time. However, the experiment needs to test the effects of different baffles and the influence of the distance between the baffle and the discharge port. It is difficult to achieve the above goals using traditional solutions and processes.

[0005] Finally, to explore the impact of hydrophobicity at different energy levels discharged into the condenser, it is necessary to capture the hydrophobic discharge morphology or the phase state of hydrophobicity entering the high-vacuum condenser. However, in order to ensure tight sealing, the condenser shell can only be made of steel, making visual observation impossible. In addition, there are a large number of tube bundles in the condenser, and even using a visualization window is difficult to meet experimental requirements.

[0006] In summary, during the existing simulation test of the condenser, it is impossible to visually observe the interior of the condenser, and because the baffle inside the condenser is directly welded to the shell, it is impossible to test the performance of the baffle at different inclination angles. Summary of the Invention

[0007] The present invention aims to solve the problem that during the existing simulation test of the condenser, the interior of the condenser cannot be visually observed, and since the baffle inside the condenser is directly welded to the shell, it is impossible to test the performance of the baffle at different inclination angles. A visual analysis and testing system for the working medium emission characteristics in a closed condenser is proposed.

[0008] The present invention provides a visual analysis and testing system for working medium discharge characteristics in a closed condenser, which comprises a steam supply unit 1, a cold water supply unit 2, a vapor-liquid jet mixing condensation boosting and heating unit 3, a closed condenser 4, a circulating cooling unit 5, a detachable working medium discharge unit 6, and a vacuum pump 8;

[0009] The outer surface of the closed condenser 4 is evenly provided with three detachable working medium discharge units 6 along the circumferential direction, and the three detachable working medium discharge units 6 are arranged corresponding to the upper layer, middle layer and lower layer inside the closed condenser 4 at one time. The output end of the steam supply unit 1 is connected to the detachable working medium discharge unit 6 corresponding to the upper layer inside the closed condenser 4, and the output end of the cold water supply unit 2 is connected to the detachable working medium discharge unit 6 corresponding to the lower layer inside the closed condenser 4. A vapor-liquid jet mixing condensation boosting heating unit 3 is provided between the steam supply unit 1 and the cold water supply unit 2. The output end of the vapor-liquid jet mixing condensation boosting heating unit 3 is connected to the detachable working medium discharge unit 6 corresponding to the middle layer inside the closed condenser 4, and the steam supply unit 1 and the cold water supply unit 2 are connected in parallel through the vapor-liquid jet mixing condensation boosting heating unit 3. The bottom cooling port of the closed condenser 4 is provided with a circulating cooling unit 5, and the top surface output end of the closed condenser 4 is connected to the input end of the vacuum pump 8;

[0010] Furthermore, the steam supply unit 1 includes an electric heating boiler 1-1 and a steam regulating valve 1-2. The output end of the electric heating boiler 1-1 is connected to the input end of the steam regulating valve 1-2 through a pipeline, and the output end of the steam regulating valve 1-2 is connected to the detachable working medium discharge unit 6 corresponding to the upper layer inside the closed condenser 4 through a pipeline.

[0011] Furthermore, the cold water supply unit 2 includes a cold water tank 2-1, a water inlet pump 2-2, a cold water inlet pipe 2-3, a cold water regulating valve 2-4, a drain pump 2-5 and a cold water discharge pipe 2-6;

[0012] The output end of the cold water tank 2-1 is connected to the input end of the water inlet pump 2-2 through the cold water inlet pipe 2-3, the output end of the water inlet pump 2-2 is connected to one end of the cold water regulating valve 2-4 through the cold water inlet pipe 2-3, the other end of the cold water regulating valve 2-4 is connected to the detachable working medium discharge unit 6 corresponding to the lower layer inside the closed condenser 4, the cold water discharge end at the bottom of the closed condenser 4 is connected to the input end of the drain pump 2-5 through the cold water discharge pipe 2-6, and the output end of the drain pump 2-5 is connected to the return water end at the bottom of the cold water tank 2-1 through the cold water discharge pipe 2-6;

[0013] Furthermore, the steam-liquid jet mixing condensation boosting heating unit 3 includes a steam valve 3-1, a cold water valve 3-2 and a steam-liquid jet mixing device 3-3;

[0014] The connection between the output end of the electric heating boiler 1-1 and the input end of the steam regulating valve 1-2 is connected to one end of the steam valve 3-1 through a pipeline, and the other end of the steam valve 3-1 is connected to the steam input end of the vapor-liquid jet mixing device 3-3 through a pipeline. The connection between the output end of the water inlet pump 2-2 and one end of the cold water regulating valve 2-4 is connected to one end of the cold water valve 3-2 through a pipeline, and the other end of the cold water valve 3-2 is connected to the cold water input end of the vapor-liquid jet mixing device 3-3 through a pipeline. The output end of the vapor-liquid jet mixing device 3-3 is connected to the detachable working medium discharge unit 6 corresponding to the middle layer inside the closed condenser 4 through a pipeline.

[0015] Furthermore, the circulating cooling unit 5 includes a cooling tower 5-1, a circulating water pump 5-2, a circulating water regulating valve 5-3 and a circulating water pipeline 5-4;

[0016] The circulation output end at the bottom of the closed condenser 4 is connected to the input end of the cooling tower 5-1 through the circulating water pipe 5-4. The output end of the cooling tower 5-1 is connected to the input end of the circulating water pump 5-2 through the circulating water pipe 5-4. The output end of the circulating water pump 5-2 is connected to one end of the circulating water regulating valve 5-3 through the circulating water pipe 5-4. The other end of the circulating water regulating valve 5-3 is connected to the circulation input end at the bottom of the closed condenser 4.

[0017] Furthermore, the detachable working medium discharge unit 6 includes an input connection flange A, a fixed flange B and a baffle C;

[0018] One end of the fixed flange B is fixedly connected to the interior of the closed condenser 4, and the other end of the fixed flange B is detachably connected to the baffle C. One end of the pipe passes through the center hole of the fixed flange B and is connected to the center hole of the baffle C. The other end of the pipe passes through the shell of the closed condenser 4 and is connected to one end of the input connection flange A.

[0019] Furthermore, the outer surface of the closed condenser 4 is evenly provided with three sensor signal line guide channels 7 along the circumferential direction, and a miniature underwater camera is respectively provided in the upper layer, middle layer and lower layer of the closed condenser 4;

[0020] Furthermore, in the steam shock experiment, the circulating cooling unit 5 is started, and when the cooling water fills the entire circulation loop, the vacuum pump 8 and the circulating water flow are adjusted to control the pressure value in the closed condenser 4 to reach the set value; the steam supply unit 1 is started, and the cold water supply unit 2 is started, and the inlet valve of the steam-liquid jet mixing condensation boosting heating unit 3 is opened and adjusted to form the working fluid of the required temperature and pressure. During this process, the parameters of the circulating cooling unit 5 are simultaneously controlled so that the pressure of the closed condenser 4 remains unchanged.

[0021] The pressure sensor and strain gauge installed on the detachable working fluid discharge unit 6 are used to measure the impact force of the working fluid discharge under different working fluid temperature and pressure conditions. At the same time, a miniature underwater camera is respectively provided in the upper, middle and lower layers of the closed condenser 4 to capture the flow pattern and flow field.

[0022] When the position of the anti-impact baffle needs to be changed, the baffle C on the detachable working fluid discharge unit 6 is directly removed and replaced with a baffle C with a different end inclination angle, and then the above process is repeated to achieve rapid and accurate measurement of the impact characteristics of working fluid discharge at different temperatures and pressures.

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] The present invention overcomes the shortcomings of the prior art and utilizes a vapor-liquid two-phase mixing and pressurization method to generate high-energy additional fluids at different temperatures. In the vapor-liquid jet mixing condensation and pressurization heating unit, the vapor and liquid directly contact condensation and heat transfer, and the heat transfer coefficient is as high as 1.0MW / (m2·K) or more. Therefore, the device is very small and can achieve instantaneous parameter adjustment. Compared with electric heaters of the same power level, the device volume is greatly reduced, only about 1 / 100 of that; it also adopts a detachable working fluid discharge unit structure, which can realize the replacement of the baffle in the detachable working fluid discharge unit on the closed condenser, thereby realizing the performance testing of the baffles at different inclination angles, greatly reducing the experimental time and experimental costs; finally, this application adopts a micro underwater camera in the upper, middle and lower layers of the closed condenser, respectively, to shoot the flow pattern and flow field through the micro underwater camera, so as to realize visual observation of the interior of the condenser. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a schematic diagram of the piping connection of the visual analysis and testing system for the working medium emission characteristics in a closed condenser according to the present invention;

[0026] Figure 2 It is a structural schematic diagram of a detachable working medium discharge unit on a closed condenser in a system for visually analyzing and testing the discharge characteristics of working medium in a closed condenser according to the present invention;

[0027] Figure 3 It is a miniature underwater camera with its own light source;

[0028] Figure 4 This is a diagram of the opening structure of the closed condenser wall;

[0029] Figure 4 The black dot “·” in the figure indicates the placement of the miniature underwater camera inside the closed condenser. DETAILED DESCRIPTION

[0030] Specific implementation method 1: Combination Figure 1 This embodiment describes a visual analysis and testing system for working medium discharge characteristics in a closed condenser, which comprises a steam supply unit 1, a cold water supply unit 2, a vapor-liquid jet mixing condensation boosting and heating unit 3, a closed condenser 4, a circulating cooling unit 5, a detachable working medium discharge unit 6, and a vacuum pump 8.

[0031] The outer surface of the closed condenser 4 is evenly provided with three detachable working medium discharge units 6 along the circumferential direction, and the three detachable working medium discharge units 6 are arranged corresponding to the upper layer, middle layer and lower layer inside the closed condenser 4 at one time. The output end of the steam supply unit 1 is connected to the detachable working medium discharge unit 6 corresponding to the upper layer inside the closed condenser 4, and the output end of the cold water supply unit 2 is connected to the detachable working medium discharge unit 6 corresponding to the lower layer inside the closed condenser 4. A vapor-liquid jet mixing condensation boosting heating unit 3 is provided between the steam supply unit 1 and the cold water supply unit 2. The output end of the vapor-liquid jet mixing condensation boosting heating unit 3 is connected to the detachable working medium discharge unit 6 corresponding to the middle layer inside the closed condenser 4, and the steam supply unit 1 and the cold water supply unit 2 are connected in parallel through the vapor-liquid jet mixing condensation boosting heating unit 3. The bottom cooling port of the closed condenser 4 is provided with a circulating cooling unit 5, and the top surface output end of the closed condenser 4 is connected to the input end of the vacuum pump 8;

[0032] In this specific embodiment, in the steam shock experiment, the circulating cooling unit 5 is started, and when the cooling water fills the entire circulation loop, the vacuum pump 8 and the circulating water flow are adjusted to control the pressure value in the closed condenser 4 to reach the set value; the steam supply unit 1 is started, and the cold water supply unit 2 is started, and the inlet valve of the steam-liquid jet mixing condensation boosting heating unit 3 is opened and adjusted to form the working medium of the required temperature and pressure. In this process, the parameters of the circulating cooling unit 5 are simultaneously controlled so that the pressure of the closed condenser 4 remains unchanged.

[0033] The pressure sensor and strain gauge installed on the detachable working fluid discharge unit 6 are used to measure the impact force of the working fluid discharge under different working fluid temperature and pressure conditions. At the same time, a miniature underwater camera is respectively provided in the upper, middle and lower layers of the closed condenser 4 to capture the flow pattern and flow field.

[0034] When the position of the anti-impact baffle needs to be changed, the baffle C on the detachable working fluid discharge unit 6 is directly removed and replaced with a baffle C with a different end inclination angle, and then the above process is repeated to achieve rapid and accurate measurement of the impact characteristics of working fluid discharge at different temperatures and pressures.

[0035] Specific implementation method 2: Combination Figure 1This embodiment is described. This embodiment is a further limitation of the test system described in the specific embodiment 1. This embodiment describes a visual analysis test system for the working medium emission characteristics in a closed condenser. The steam supply unit 1 includes an electric heating boiler 1-1 and a steam regulating valve 1-2. The output end of the electric heating boiler 1-1 is connected to the input end of the steam regulating valve 1-2 through a pipeline. The output end of the steam regulating valve 1-2 is connected to the detachable working medium emission unit 6 corresponding to the upper layer inside the closed condenser 4 through a pipeline.

[0036] Specific implementation method three: Combination Figure 1 This embodiment further defines the test system described in the second embodiment. This embodiment further defines a test system for visually analyzing discharge characteristics of a working medium in a closed condenser. The cold water supply unit 2 includes a cold water tank 2-1, a water inlet pump 2-2, a cold water inlet pipe 2-3, a cold water regulating valve 2-4, a drain pump 2-5, and a cold water discharge pipe 2-6.

[0037] The output end of the cold water tank 2-1 is connected to the input end of the water inlet pump 2-2 through the cold water inlet pipe 2-3, the output end of the water inlet pump 2-2 is connected to one end of the cold water regulating valve 2-4 through the cold water inlet pipe 2-3, the other end of the cold water regulating valve 2-4 is connected to the detachable working medium discharge unit 6 corresponding to the lower layer inside the closed condenser 4, the cold water discharge end at the bottom of the closed condenser 4 is connected to the input end of the drain pump 2-5 through the cold water discharge pipe 2-6, and the output end of the drain pump 2-5 is connected to the return water end at the bottom of the cold water tank 2-1 through the cold water discharge pipe 2-6.

[0038] Specific implementation method four: Combination Figure 1 This embodiment further defines the test system described in the third embodiment. This embodiment further defines a test system for visually analyzing the emission characteristics of a working medium in a closed condenser. The vapor-liquid jet mixing, condensing, and pressurizing heating unit 3 includes a steam valve 3-1, a cold water valve 3-2, and a vapor-liquid jet mixing device 3-3.

[0039] The connection between the output end of the electric heating boiler 1-1 and the input end of the steam regulating valve 1-2 is connected to one end of the steam valve 3-1 through a pipeline, and the other end of the steam valve 3-1 is connected to the steam input end of the vapor-liquid jet mixing device 3-3 through a pipeline. The connection between the output end of the water inlet pump 2-2 and one end of the cold water regulating valve 2-4 is connected to one end of the cold water valve 3-2 through a pipeline, and the other end of the cold water valve 3-2 is connected to the cold water input end of the vapor-liquid jet mixing device 3-3 through a pipeline. The output end of the vapor-liquid jet mixing device 3-3 is connected to the detachable working medium discharge unit 6 corresponding to the middle layer inside the closed condenser 4 through a pipeline.

[0040] Specific implementation method five: Combination Figure 1 This embodiment further defines the test system described in the fourth embodiment. This embodiment further defines a test system for visually analyzing the emission characteristics of a working medium in a closed condenser. The circulating cooling unit 5 includes a cooling tower 5-1, a circulating water pump 5-2, a circulating water regulating valve 5-3, and a circulating water pipeline 5-4.

[0041] The circulation output end at the bottom of the closed condenser 4 is connected to the input end of the cooling tower 5-1 through the circulating water pipe 5-4, the output end of the cooling tower 5-1 is connected to the input end of the circulating water pump 5-2 through the circulating water pipe 5-4, the output end of the circulating water pump 5-2 is connected to one end of the circulating water regulating valve 5-3 through the circulating water pipe 5-4, and the other end of the circulating water regulating valve 5-3 is connected to the circulation input end at the bottom of the closed condenser 4.

[0042] Specific implementation method six: combination Figure 1 and Figure 2 This embodiment further defines the test system described in the first embodiment. This embodiment further defines a test system for visually analyzing the discharge characteristics of a working medium in a closed condenser. The detachable working medium discharge unit 6 includes an input connection flange A, a fixed flange B, and a baffle C.

[0043] One end of the fixed flange B is fixedly connected to the interior of the closed condenser 4, and the other end of the fixed flange B is detachably connected to the baffle C. One end of the pipe passes through the center hole of the fixed flange B and is connected to the center hole of the baffle C. The other end of the pipe passes through the shell of the closed condenser 4 and is connected to one end of the input connection flange A.

[0044] In this specific embodiment, during the experiment, the baffle C in the detachable working medium discharge unit 6 can be replaced, so that the baffles C with different inclination angles can be tested, which greatly reduces the experimental time and test cost.

[0045] Specific implementation method seven: combination Figures 1 to 4 This embodiment further defines the test system described in the first embodiment. In this embodiment, a test system for visually analyzing the emission characteristics of a working medium in a closed condenser is provided. Three sensor signal line guide channels 7 are evenly arranged on the outer surface of the closed condenser 4 along the circumferential direction, and a miniature underwater camera is respectively provided in the upper, middle, and lower layers of the closed condenser 4.

[0046] In this specific embodiment, a micro underwater camera is provided in the upper layer, middle layer and lower layer of the closed condenser 4 respectively, and the flow pattern and flow field are photographed by the micro underwater camera to realize visual observation of the interior of the condenser.

[0047] How it works

[0048] In the steam shock experiment, the circulating cooling unit 5 is started, and when the cooling water fills the entire circulation loop, the vacuum pump 8 and the circulating water flow are adjusted to control the pressure value in the closed condenser 4 to reach the set value; the steam supply unit 1 is started, and the cold water supply unit 2 is started, and the inlet valve of the steam-liquid jet mixing condensation boosting heating unit 3 is opened and adjusted to form the working medium of the required temperature and pressure. During this process, the parameters of the circulating cooling unit 5 are simultaneously controlled to keep the pressure of the closed condenser 4 unchanged.

[0049] The pressure sensor and strain gauge installed on the detachable working fluid discharge unit 6 are used to measure the impact force of the working fluid discharge under different working fluid temperature and pressure conditions. At the same time, a miniature underwater camera is respectively provided in the upper, middle and lower layers of the closed condenser 4 to capture the flow pattern and flow field.

[0050] When the position of the anti-impact baffle needs to be changed, the baffle C on the detachable working fluid discharge unit 6 is directly removed and replaced with a baffle C with a different end inclination angle, and then the above process is repeated to achieve rapid and accurate measurement of the impact characteristics of working fluid discharge at different temperatures and pressures.

Claims

1. A visual analysis and testing system for the emission characteristics of working fluids in closed condensers, characterized by: It comprises a steam supply unit (1), a cold water supply unit (2), a steam-liquid jet mixing condensation boosting and heating unit (3), a closed condenser (4), a circulating cooling unit (5), a detachable working medium discharge unit (6) and a vacuum pump (8); The outer surface of the closed condenser (4) is evenly provided with three detachable working medium discharge units (6) along the circumferential direction, and the three detachable working medium discharge units (6) are arranged corresponding to the upper layer, the middle layer and the lower layer inside the closed condenser (4) at one time. The output end of the steam supply unit (1) is connected to the detachable working medium discharge unit (6) corresponding to the upper layer inside the closed condenser (4), and the output end of the cold water supply unit (2) is connected to the detachable working medium discharge unit (6) corresponding to the lower layer inside the closed condenser (4). The steam supply unit (1) A vapor-liquid jet mixing condensation and pressure-boosting heating unit (3) is provided between the steam supply unit (1) and the cold water supply unit (2); the output end of the vapor-liquid jet mixing condensation and pressure-boosting heating unit (3) is connected to a detachable working medium discharge unit (6) corresponding to the middle layer inside the closed condenser (4); the steam supply unit (1) and the cold water supply unit (2) are connected in parallel via the vapor-liquid jet mixing condensation and pressure-boosting heating unit (3); a circulating cooling unit (5) is provided at the bottom cooling port of the closed condenser (4); and the top output end of the closed condenser (4) is connected to the input end of a vacuum pump (8).

2. A visual analysis and testing system for working medium emission characteristics in a closed condenser according to claim 1, characterized in that: The steam supply unit (1) comprises an electric heating boiler (1-1) and a steam regulating valve (1-2); the output end of the electric heating boiler (1-1) is connected to the input end of the steam regulating valve (1-2) via a pipeline; and the output end of the steam regulating valve (1-2) is connected to a detachable working medium discharge unit (6) corresponding to the upper layer inside the closed condenser (4) via a pipeline.

3. The visual analysis and testing system for working medium emission characteristics in a closed condenser according to claim 2, characterized in that: The cold water supply unit (2) comprises a cold water tank (2-1), a water inlet pump (2-2), a cold water inlet pipe (2-3), a cold water regulating valve (2-4), a drainage pump (2-5) and a cold water discharge pipe (2-6); The output end of the cold water tank (2-1) is connected to the input end of the water inlet pump (2-2) through the cold water inlet pipe (2-3); the output end of the water inlet pump (2-2) is connected to one end of the cold water regulating valve (2-4) through the cold water inlet pipe (2-3); the other end of the cold water regulating valve (2-4) is connected to the detachable working medium discharge unit (6) corresponding to the lower layer inside the closed condenser (4); the cold water discharge end at the bottom of the closed condenser (4) is connected to the input end of the drainage pump (2-5) through the cold water discharge pipe (2-6); and the output end of the drainage pump (2-5) is connected to the return water end at the bottom of the cold water tank (2-1) through the cold water discharge pipe (2-6).

4. The visual analysis and testing system for working medium emission characteristics in a closed condenser according to claim 3, characterized in that: The steam-liquid jet mixing condensation boosting heating unit (3) comprises a steam valve (3-1), a cold water valve (3-2) and a steam-liquid jet mixing device (3-3); The connection between the output end of the electric heating boiler (1-1) and the input end of the steam regulating valve (1-2) is connected to one end of the steam valve (3-1) through a pipeline, and the other end of the steam valve (3-1) is connected to the steam input end of the vapor-liquid jet mixing device (3-3) through a pipeline. The connection between the output end of the water inlet pump (2-2) and one end of the cold water regulating valve (2-4) is connected to one end of the cold water valve (3-2) through a pipeline, and the other end of the cold water valve (3-2) is connected to the cold water input end of the vapor-liquid jet mixing device (3-3) through a pipeline. The output end of the vapor-liquid jet mixing device (3-3) is connected to the detachable working medium discharge unit (6) corresponding to the middle layer inside the closed condenser (4) through a pipeline.

5. The visual analysis and testing system for working medium emission characteristics in a closed condenser according to claim 4, characterized in that: The circulating cooling unit (5) comprises a cooling tower (5-1), a circulating water pump (5-2), a circulating water regulating valve (5-3) and a circulating water pipeline (5-4); The circulation output end at the bottom of the closed condenser (4) is connected to the input end of the cooling tower (5-1) through a circulating water pipe (5-4); the output end of the cooling tower (5-1) is connected to the input end of the circulating water pump (5-2) through a circulating water pipe (5-4); the output end of the circulating water pump (5-2) is connected to one end of a circulating water regulating valve (5-3) through a circulating water pipe (5-4); and the other end of the circulating water regulating valve (5-3) is connected to the circulation input end at the bottom of the closed condenser (4).

6. The visual analysis and testing system for working medium emission characteristics in a closed condenser according to claim 1, characterized in that: The detachable working medium discharge unit (6) comprises an input connection flange (A), a fixed flange (B) and a baffle (C); One end of the fixed flange (B) is fixedly connected to the interior of the closed condenser (4), and the other end of the fixed flange (B) is detachably connected to the baffle (C). One end of the pipe passes through the center hole of the fixed flange (B) and is connected to the center hole of the baffle (C). The other end of the pipe passes through the shell of the closed condenser (4) and is connected to one end of the input connection flange (A).

7. The visual analysis and testing system for working medium emission characteristics in a closed condenser according to claim 1, characterized in that: The outer surface of the closed condenser (4) is evenly provided with three sensor signal line guide channels (7) along the circumferential direction, and a miniature underwater camera is respectively provided in the upper layer, middle layer and lower layer inside the closed condenser (4).

Images