Condenser assembly and power generation equipment

Abstract

The invention relates to a condenser assembly and power generation equipment, the condenser assembly comprises a high-pressure side condenser, a low-pressure side condenser, condensation mechanisms, detection mechanisms and a heat regeneration mechanism, the condensation mechanisms comprise a first condensation mechanism and a second condensation mechanism, and the detection mechanisms comprise a first detection mechanism and a second detection mechanism; the first detection mechanism is arranged below the first condensation mechanism, and the second detection mechanism is arranged below the second condensation mechanism; the heat regeneration mechanism comprises a first hot well, a second hot well and a heat regeneration pipeline of the two hot wells, the first hot well is located below the first detection mechanism, a spraying pipe and a water drainage port are arranged in the first hot well, the spraying pipe is communicated with the second end of the heat regeneration pipeline, a plurality of flow guide grooves are formed in the bottom of the second hot well, and the heights of the flow guide grooves are gradually reduced in the first direction; and the lowest diversion trench is communicated with the first end of the heat return pipeline. The condenser assembly can integrate detection and heat regeneration of condensate water, guarantee safe operation of the condenser and improve the efficiency of the condenser.

Description

Technical Field

[0001] The present disclosure relates to the technical field of condensers for power generation equipment, and in particular to a condenser assembly and a power generation equipment. Background Art

[0002] When the condenser is running in winter, if the unit load is too small, the circulating water volume is not well controlled and is relatively large, resulting in a larger degree of condensate supercooling, thereby reducing the thermal efficiency of the condenser. At the same time, the oxygen content in the condensate will be too high, which will affect the subsequent equipment using the condensate. Installing a condenser heat recovery device can reduce the degree of condensate supercooling and reduce the oxygen content of the condensate.

[0003] However, the existing heat recovery mechanism occupies a large space, and installing the heat recovery mechanism in the hot well of the condenser will affect the normal operation of the condensate water detection mechanism. Summary of the invention

[0004] The purpose of the present disclosure is to provide a condenser assembly and a power generation device, wherein the condenser assembly can integrate the detection and heat recovery of condensed water, ensure the safe operation of the condenser and improve the efficiency of the condenser, so as to at least partially solve the problems in the related art.

[0005] In order to achieve the above-mentioned objectives, the first aspect of the present disclosure provides a condenser assembly, a high-pressure side condenser and a low-pressure side condenser, a condensing mechanism, including a first condensing mechanism and a second condensing mechanism, the first condensing mechanism is arranged in the high-pressure side condenser, and is used to condense the hot steam passing through the high-pressure side condenser into water, the second condensing mechanism is located in the low-pressure side condenser, and is used to condense the hot steam passing through the low-pressure side condenser into water, a detection mechanism, including a first detection mechanism and a second detection mechanism, the first detection mechanism is arranged below the first condensing mechanism, and is used to divert the condensed water formed by the high-pressure side condenser and the cooling water leaked from the first condensing mechanism, and to sample and detect the merged water, The second detection mechanism is arranged below the second condensing mechanism, and is used to divert the condensed water formed by the low-pressure side condenser and the cooling water leaked from the second condensing mechanism, and to sample and detect the combined water; the heat recovery mechanism includes a first hot well, a second hot well, and a heat recovery pipe connecting the first hot well and the second hot well, the first hot well is located below the first detection mechanism, a spray pipe and a drain port are provided in the first hot well, the spray pipe is located above the drain port, the spray pipe is connected to the second end of the heat recovery pipe, and a plurality of guide grooves are provided at the bottom of the second hot well, the height of the guide grooves gradually decreases along the first direction, and the lowest guide groove is connected to the first end of the heat recovery pipe.

[0006] Optionally, the first condensation mechanism includes a plurality of first condensation chambers independently arranged in sequence along a first direction and a first cooling pipe arranged in each of the first condensation chambers, the first cooling pipe is used to pass cooling water so that the hot steam entering the first condensation chamber is condensed into water, and the first condensation chamber is provided with a first inlet and a first outlet in the second direction, the first inlet is used to receive steam, and the first outlet is used to guide condensed water after condensation of the hot steam; the second condensation mechanism includes a plurality of second condensation chambers independently arranged in sequence along the first direction and a second cooling pipe arranged in each of the second condensation chambers, the second cooling pipe is used to pass cooling water so that the hot steam entering the second condensation chamber is condensed into water, and the second condensation chamber is provided with a second inlet and a first outlet in the second direction, the second inlet is used to receive steam, and the second outlet is used to guide condensed water after condensation of the hot steam.

[0007] Optionally, the condensing component also includes a water circulation connection mechanism, which includes a circulation main pipe, a first branch pipe and a second branch pipe, the first branch pipe and the second branch pipe are respectively connected to the two ends of the main pipe, and a first control valve is provided on the circulation main pipe. The first branch pipe is connected to the outlets of multiple first cooling pipes, and the second branch pipe is connected to the inlets of multiple second cooling pipes. The outlet of the first cooling pipe is provided with a second control valve, and the inlet of the second cooling pipe is provided with a third control valve.

[0008] Optionally, the water circulation connection mechanism also includes multiple circulation sub-pipes, the number of the circulation sub-pipes corresponds one-to-one to the number of the first cooling pipes, each of the circulation sub-pipes is provided with a fourth control valve, the first cooling pipe and the second cooling pipe are arranged in a group, and the circulation sub-pipe is used to connect the first cooling pipe and the second cooling pipe in the same group.

[0009] Optionally, the inlet of the circulation sub-pipe is located downstream of the second control valve of the corresponding first cooling pipe, and the outlet of the circulation sub-pipe is located upstream of the third control valve of the corresponding second cooling pipe.

[0010] Optionally, the first detection mechanism includes a first overflow pan, which is located below the first cooling pipe, and a first gap is provided between the first overflow pan and the inner wall of the high-pressure side condenser, and the first gap is used to overflow the condensed water received by the first overflow pan into the first hot well; the second detection mechanism includes a second overflow pan, which is located below the second cooling pipe, and a second gap is provided between the second overflow pan and the inner wall of the low-pressure side condenser, and the second gap is used to overflow the condensed water received by the second overflow pan into the second hot well.

[0011] Optionally, the first detection mechanism includes a first overflow pan, the first overflow pan is located below the first cooling pipe, a plurality of first partitions are provided in the first overflow pan, the first partitions are used to divide the first overflow pan into a plurality of first water storage sections corresponding to the first condensing chambers one by one, a first gap is located between the first water storage section and the inner side wall of the high-pressure side condenser, and the first gap is used to overflow the condensed water received by each of the first water storage sections into the first hot well; The second detection mechanism includes a second overflow pan, which is located below the second cooling pipe. A plurality of second partitions are provided in the second overflow pan, which divide the second overflow pan into a plurality of second water storage sections corresponding one to one with the second condensing chamber. A second gap is located between the second water storage section and the inner side wall of the low-pressure side condenser, and the second gap is used to overflow the condensed water received by each second water storage section into the second hot well.

[0012] Optionally, the detection mechanism also includes a detector, the first detection mechanism also includes a plurality of first conduits, the first conduits are arranged in a one-to-one correspondence with the first water storage section, the first end of the first conduit is connected to the first water storage section, and the second end is connected to the detector, the second detection mechanism also includes a plurality of second conduits, the second conduits are arranged in a one-to-one correspondence with the second water storage section, the first end of the second conduit is connected to the second water storage section, and the second end is connected to the detector.

[0013] Optionally, the spray pipe comprises a spray main pipe extending along a first direction and a plurality of spray branch pipes extending along a third direction, the spray main pipe is tapered in a direction away from the heat recovery pipe, and the spray branch pipes are provided with a plurality of spray holes which are spaced apart and open downward; There are multiple spray branch pipes, which are located on both sides of the spray main pipe. The spray branch pipes on the same side are arranged at intervals, and the cross-sectional area of ​​the spray branch pipe gradually decreases in the direction away from the spray main pipe.

[0014] According to a second aspect of the present disclosure, there is provided a power generation device, comprising the above-mentioned condenser assembly.

[0015] Through the above technical scheme, the condenser assembly includes a high-pressure side condenser, a low-pressure side condenser, a condensing mechanism, a detection mechanism and a heat recovery mechanism, wherein a first condensing mechanism, a first detection mechanism and a first hot well are arranged in sequence from top to bottom in the high-pressure side condenser, and a second condensing mechanism, a second detection mechanism and a second hot well are arranged in sequence from top to bottom in the low-pressure side condenser. The hot steam passing through the high-pressure side condenser is condensed into water through heat exchange with the first condensing mechanism, and the condensed water is drained into the first hot well through the first detection mechanism. The condensed water formed by the high-pressure side condenser and the cooling water leaked from the first condensing mechanism can be diverted and the merged water can be sampled and detected through the first detection mechanism. The condensed water formed by the low-pressure side condenser and the second condenser can be sampled and detected through the second detection mechanism. The cooling water with leakage in the structure is diverted and the merged water is sampled for detection, so as to complete the leak detection of the first condensing mechanism and the second condensing mechanism in the high-pressure side condenser and the low-pressure side condenser, and monitor the water quality of the condensed water in the high-pressure side condenser and the low-pressure side condenser. In addition, a plurality of guide grooves with gradually decreasing heights along the first direction are arranged at the bottom of the second hot well. The guide grooves are located at the bottom of the second hot well so that there is enough space for the installation of the second detection mechanism. At the same time, the condensed water in the guide grooves of different heights gradually and slowly flows to the lowest guide groove by gravity and is transported to the spray pipe in the first hot well of the high-pressure side condenser through the heat recovery pipe, and is sprayed downward, so that it can be mixed with the condensed water in the low-pressure side condenser to increase the overall temperature of the condensed water and be discharged from the drain after the heat recovery is completed. In this way, the heat recovery mechanism and the detection mechanism can be integrated in the high-pressure side condenser and the low-pressure side condenser. The positions of the detection mechanism and the heat recovery mechanism do not conflict. By recovering heat through the heat recovery mechanism at the bottom, the condensate temperature can be increased and the subcooling of the condensate can be reduced, thereby ensuring the water quality of the condensed water in the condenser assembly and improving the efficiency of the condenser assembly.

[0016] Other features and advantages of the present disclosure will be described in detail in the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings are used to provide a further understanding of the present disclosure and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the present disclosure but do not constitute a limitation of the present disclosure. In the accompanying drawings: Figure 1 is a first angle schematic diagram of a condenser assembly provided in an exemplary embodiment of the present disclosure; Figure 2 is a second angle schematic diagram of a condenser assembly provided in an exemplary embodiment of the present disclosure; Figure 3 is a schematic top view of a condenser assembly provided in an exemplary embodiment of the present disclosure; Figure 4 is a first cross-sectional schematic diagram of a low-pressure side condenser provided in an exemplary embodiment of the present disclosure; Figure 5 is a schematic diagram of a cross section of a high-pressure side condenser provided in an exemplary embodiment of the present disclosure; Figure 6 is an internal schematic diagram of a heat recovery mechanism provided in an exemplary embodiment of the present disclosure; Figure 7 is a schematic diagram of a detection process of a detection mechanism provided in an exemplary embodiment of the present disclosure; Figure 8 is a schematic diagram of a second cross section of a low-pressure side condenser provided in an exemplary embodiment of the present disclosure; Fig. 9 is a schematic diagram of a spray pipe provided in an exemplary embodiment of the present disclosure.

[0018] Description of Reference Numerals 1-high-pressure side condenser; 2-low-pressure side condenser; 3-condensing mechanism; 31-first condensing mechanism; 311-first condensing chamber; 312-first cooling pipe; 313-second control valve; 32-second condensing mechanism; 321-second condensing chamber; 322-second cooling pipe; 323-third control valve; 4-detection mechanism; 41-first detection mechanism; 42-second detection mechanism; 43-first overflow tray; 431-first partition; 432-first water storage section; 44-second overflow tray; 441-second partition; 442-second water storage section; 45-detector; 451-seventh control valve; 452-sampling tube; 453-switching valve; 454-vacuum pump; 455-conductivity meter; 456-exhaust valve; 46-first conduit; 47-second conduit; 5-heat recovery mechanism; 51-first hot well; 52-second hot well; 53-heat recovery pipe; 54-guiding groove; 55-spray pipe; 551-spray main pipe; 552-spray branch pipe; 56-drain outlet; 57-drain pipe; 6-water circulation connection mechanism; 61-circulation main pipe; 611-first control valve; 62-first branch pipe; 63-second branch pipe; 64-circulation auxiliary pipe; 641-fourth control valve; 7-exhaust mechanism; 71-first exhaust mechanism; 711-first exhaust main pipe; 712-first exhaust branch pipe; 713-fifth control valve; 72-second exhaust mechanism; 721-second exhaust main pipe; 722-second exhaust branch pipe; 723-sixth control valve. DETAILED DESCRIPTION

[0019] The specific implementation of the present disclosure is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described herein is only used to illustrate and explain the present disclosure, and is not used to limit the present disclosure.

[0020] In this disclosure, unless otherwise stated, directional words such as "upper, lower, left, right" generally refer to the use state of a component. "Inner" and "outer" refer to the contour of a component. "First direction" can refer to Figure 1 In the X direction, the "second direction" can refer to Figure 1 The middle Y direction, the “third direction” can refer to Figure 1 In the Z direction. In addition, it should be noted that the terms used, such as "first, second", etc., are used to distinguish one element from another element, and do not have order and importance. In addition, in the description with reference to the drawings, the same mark in different drawings represents the same element.

[0021] In the related art, the steam turbine condenser of the unit above 600MW used in the power plant is operated with double back pressure, which is divided into high-pressure condenser and low-pressure condenser. The pressure difference between the high-pressure side condenser and the low-pressure side condenser is greater than 1KPa. The condensate on the low-pressure side is connected to the hot well of the high-pressure side condenser. The condensate has a large degree of supercooling, which will increase the heat required for the condensate to be heated, thereby reducing the thermal economy of the system. In addition, the dissolved oxygen content of the condensate will increase, causing oxygen corrosion of low-pressure equipment and pipelines, and reducing the safety and reliability of the equipment. However, the heat recovery mechanism in the related art occupies a large space, and installing a heat recovery mechanism in the hot well of the condenser will affect the normal operation of the condensate detection mechanism.

[0022] like Figure 1-Figure 9As shown, the first aspect of the present disclosure provides a condenser assembly, including a high-pressure side condenser 1, a low-pressure side condenser 2, a condensing mechanism 3, a detection mechanism 4 and a heat recovery mechanism 5. The condensing mechanism 3 includes a first condensing mechanism 31 and a second condensing mechanism 32. The first condensing mechanism 31 is arranged in the high-pressure side condenser 1, and is used to condense the hot steam passing through the high-pressure side condenser 1 into water. The second condensing mechanism 32 is located in the low-pressure side condenser 2, and is used to condense the hot steam passing through the low-pressure side condenser 2 into water; the detection mechanism 4 includes a first detection mechanism 41 and a second detection mechanism 42. The first detection mechanism 41 is arranged below the first condensing mechanism 31, and is used to guide the condensed water formed by the high-pressure side condenser 1 and the cooling water leaked from the first condensing mechanism 31, and to sample the combined water. Detection, the second detection mechanism 42 is arranged below the second condensing mechanism 32, and is used to divert the condensed water formed by the low-pressure side condenser 2 and the cooling water leaked from the second condensing mechanism 32, and to sample and detect the combined water; the heat recovery mechanism 5 includes a first hot well 51, a second hot well 52 and a heat recovery pipe 53 connecting the first hot well 51 and the second hot well 52, the first hot well 51 is located below the first detection mechanism 41, a spray pipe 55 and a drain port 56 are provided in the first hot well 51, the spray pipe 55 is located above the drain port 56, the spray pipe 55 is connected to the second end of the heat recovery pipe 53, and a plurality of guide grooves 54 are provided at the bottom of the second hot well 52, the height of the guide grooves 54 gradually decreases along the first direction, and the lowest guide groove 54 is connected to the first end of the heat recovery pipe 53.

[0023] According to the above technical scheme, the condenser assembly includes a high-pressure side condenser 1, a low-pressure side condenser 2, a condensing mechanism 3, a detection mechanism 4 and a heat recovery mechanism 5, wherein a first condensing mechanism 31, a first detection mechanism 41 and a first hot well 51 are sequentially arranged in the high-pressure side condenser 1 along the second direction from top to bottom, and a second condensing mechanism 32, a second detection mechanism 42 and a second hot well 52 are sequentially arranged in the low-pressure side condenser 2 along the second direction from top to bottom. The hot steam passing through the high-pressure side condenser 1 is condensed into water through heat exchange with the first condensing mechanism 31, and the condensed water is drained into the first hot well 51 through the first detection mechanism 41. The condensed water formed in the high-pressure side condenser 1 and the cooling water leaked from the first condensing mechanism 31 can be diverted and the merged water can be sampled and detected through the first detection mechanism 41. The condensed water formed in the low-pressure side condenser 2 and the cooling water leaked from the second condensing mechanism 31 can be sampled and detected through the second detection mechanism 42. The leaked cooling water 32 is diverted and the merged water is sampled for detection, so that the first condensing mechanism 31 and the second condensing mechanism 32 in the high-pressure side condenser 1 and the low-pressure side condenser 2 can be leaked, and the water quality of the condensed water in the high-pressure side condenser 1 and the low-pressure side condenser 2 can be monitored. In addition, a plurality of guide grooves 54 with gradually decreasing heights along the first direction are arranged at the bottom of the second hot well 52. The guide grooves 54 are located at the bottom of the second hot well 52 so that there is enough space for the second detection mechanism 42 to be installed. At the same time, the condensed water in the guide grooves 54 of different heights gradually and slowly flows to the lowest guide groove 54 by gravity and is transported to the spray pipe 55 in the first hot well 51 of the high-pressure side condenser 1 through the heat recovery pipe 53 to be sprayed downward, so that it can be mixed with the condensed water in the low-pressure side condenser 2 to increase the overall temperature of the condensed water, and then flow from the drain port 56 to the drain pipe 57 for discharge after completing the heat recovery. In this way, the heat recovery mechanism 5 and the detection mechanism 4 can be integrated in the high-pressure side condenser 1 and the low-pressure side condenser 2. The positions of the detection mechanism 4 and the heat recovery mechanism 5 do not conflict with each other. By recovering heat through the heat recovery mechanism 5 at the bottom, the condensate temperature can be increased and the subcooling degree of the condensate can be reduced, thereby ensuring the water quality of the condensate in the condenser assembly and improving the efficiency of the condenser assembly.

[0024] In some practicable embodiments, in order to condense hot steam into water in different regions, the first condensing mechanism 31 includes a plurality of first condensing chambers 311 independently arranged in sequence along a first direction and a first cooling pipe 312 arranged in each first condensing chamber 311, the first cooling pipe 312 is used to pass cooling water so that the hot steam entering the first condensing chamber 311 is condensed into water, the first condensing chamber 311 is provided with a first inlet and a first outlet in the second direction, the first inlet is used to receive steam, and the first outlet is used to guide condensed water after the hot steam is condensed, wherein a plurality of partition plates arranged at intervals can be arranged in the shell of the first condensing mechanism 31, two adjacent partition plates and the inner side wall of the shell of the first condensing mechanism 31 jointly form the first condensing chamber 311, so that the hot steam entering the high-pressure side condenser 1 can be condensed through different regions, thereby, the supercooling degree of the cooling water in the corresponding first cooling pipe 312 can be selectively controlled according to the amount of hot steam in different first condensing chambers 311, and the hot steam can be condensed into water in a more accurate manner. Similarly, the second condensation mechanism 32 includes a plurality of second condensation chambers 321 independently arranged in sequence along the first direction and a second cooling pipe 322 arranged in each second condensation chamber 321. The second cooling pipe 322 is used to pass cooling water so that the hot steam entering the second condensation chamber 321 is condensed into water. The second condensation chamber 321 is provided with a second inlet and a second outlet in the second direction. The second inlet is used to receive steam, and the second outlet is used to guide condensed water after the hot steam is condensed.

[0025] In order to facilitate the detection mechanism 4 to receive and guide the confluence of condensed water and / or condensed water and leaked cooling water, in some feasible methods, the first detection mechanism 41 includes a first overflow tray 43, and the first overflow tray 43 is located below the first cooling pipe. The shape of the first overflow tray 43 is similar to the cross-section of the inner side of the shell of the high-pressure side condenser 1. The first overflow tray 43 can be fixed to the inner wall of the shell of the high-pressure side condenser 1 by connecting bolts. A first gap is provided between the first overflow tray 43 and the inner wall of the high-pressure side condenser 1. The first gap is used to overflow the condensed water received by the first overflow tray 43 into the first hot well 51, so that when the high-temperature steam passes through the first cooling pipe 312, condensed water is formed, and flows into the first overflow tray 43 with gravity. Similarly, the first cooling pipe 312 After leaking cooling water, it will also flow into the first overflow tray 43 by gravity, so that the water quality of the condensed water can be monitored by sampling the first overflow tray 43 later; similarly, the second detection mechanism 42 includes a second overflow tray 44, and the second overflow tray 44 is located below the second cooling pipe. A second gap is provided between the second overflow tray 44 and the inner wall of the low-pressure side condenser 2, and the second gap is used to overflow the condensed water received by the second overflow tray 44 into the second hot well 52, so that when the high-temperature steam passes through the second cooling pipe 322 to form condensed water, it will flow into the second overflow tray 44 by gravity. Similarly, after leaking cooling water in the second cooling pipe 322, it will also flow into the second overflow tray 44 by gravity, so that the water quality of the condensed water can be monitored by sampling the second overflow tray 44 later.

[0026] In some practicable embodiments, in order to facilitate monitoring of water leakage in the corresponding first cooling pipe 312 and the second cooling pipe 322, the first detection mechanism 41 includes a first overflow pan 43, and the first overflow pan 43 is located below the first cooling pipe 312. For example, the first overflow pan 43 is located directly below the first cooling pipe 312, and a plurality of first partitions 431 are provided in the first overflow pan 43. The first partitions 431 are used to divide the first overflow pan 43 into a plurality of first water storage sections 432 corresponding to the first condensing chamber 311 one by one. The first gap is located between the first water storage section 432 and the inner wall of the high-pressure side condenser 1, and the first gap is used to overflow the condensed water received by each first water storage section 432 into the first hot well 51. In this way, a first cooling pipe 312 can correspond to a first water storage section 432, and when sampling and detecting each independent first water storage section 432, the condensed water can be accurately determined. The second detection mechanism 42 includes a second overflow tray 44, which is located below the second cooling tube. A plurality of second partitions 441 are provided in the second overflow tray 44. The second partitions 441 divide the second overflow tray 44 into a plurality of second water storage sections 442 corresponding to the second condensing chamber 321. The second gap is located between the second water storage section 442 and the inner wall of the low-pressure side condenser 2. The second gap is used to overflow the condensed water received by each second water storage section 442 into the second hot well 52. In this way, a second cooling tube 322 corresponding to a second water storage section 442 can be formed. When sampling and detecting each independent second water storage section 442, it is possible to accurately locate whether the corresponding second cooling tube 322 is leaking, thereby enabling the corresponding leaking first cooling tube 312 and / or second cooling tube 322 to be quickly replaced.

[0027] In some feasible embodiments, in order to facilitate the detection of the water quality of the condensed water in the high-pressure side condenser 1 and the low-pressure side condenser 2, the detection mechanism 4 also includes a detector 45, the first detection mechanism 41 also includes a plurality of first conduits 46, the first conduits 46 are arranged in a one-to-one correspondence with the first water storage section 432, the first end of the first conduit is connected to the first water storage section 432, and the second end is connected to the detector 45, the second detection mechanism 42 also includes a plurality of second conduits 47, the second conduits 47 are arranged in a one-to-one correspondence with the second water storage section 442, the first end of the second conduit is connected to the second water storage section 442, and the second end is connected to the detector 45. The detector 45 may include a flow guide pipe, a seventh control valve 451, a sampling pipe 452, a switch valve 453, a vacuum pump 454, a conductivity meter 455 and an exhaust valve 456. The inlet of the flow guide pipe is connected to the outlet of the corresponding first conduit 46 and the second conduit 47, and is used to receive the condensed water extracted from the first conduit 46 and the second conduit 47. The first conduit 46 and the second conduit 47 are both provided with a seventh control valve 451. The corresponding seventh control valve 451 is opened to send the sample in the first conduit 46 or the second conduit 47 to the sampling pipe 452. Since the inside of the condenser is under negative pressure, the sampling pump needs to use a vacuum pump 454, and enter the vacuum pump 454 after passing through the switch valve 453. Finally, the water quality of the condensed water is detected by the conductivity meter 455. In addition, when gas enters the sampling pipe 452, it can be discharged through the exhaust valve 456.

[0028] In some practicable embodiments, the spray pipe 55 includes a spray main pipe 551 extending along a first direction and a plurality of spray branch pipes 552 extending along a third direction. The spray main pipe 551 is tapered in a direction away from the heat recovery pipe, that is, the diameter of the spray main pipe 551 gradually decreases from the inlet to the end, thereby ensuring that the pressure in the spray main pipe 551 is evenly distributed. The spray branch pipe 552 is provided with a plurality of spray holes that are spaced apart and open downward. The spray holes are arranged downward so that they can be quickly mixed with the condensed water in the high-pressure side condenser 1, and after completing the heat recovery in the high-pressure side condenser 1, flow through the drain port 56 and the drain pipe 57 for discharge. In addition, in some feasible embodiments, there are multiple spray branch pipes 552, and the multiple spray branch pipes 552 are separated on both sides of the spray main pipe 551. The spray branch pipes 552 on the same side are arranged at intervals, and the cross-sectional area of ​​the spray branch pipes 552 gradually decreases in the direction away from the spray main pipe 551, so that the pressure in the spray branch pipes 552 can be evenly distributed, and the spray coverage area is large through the spray holes of the multiple spray branch pipes 552, which can quickly mix with the condensed water in the high-pressure side condenser 1, facilitate the full mixing of high-temperature condensed water and low-temperature condensed water, and at the same time, the oxygen in the condensed water can be discharged by spraying.

[0029] In some practicable embodiments, in order to facilitate the circulation of cooling water, the condensing assembly further includes a water circulation connection mechanism 6, which includes a circulation main pipe 61, a first branch pipe 62, and a second branch pipe 63. The first branch pipe 62 and the second branch pipe 63 are respectively connected to both ends of the circulation main pipe 61. The first branch pipe 62 may be provided with a plurality of inlets, which are respectively connected to the outlets of the first cooling pipe 312, so that the cooling water of the corresponding first cooling pipe 312 is introduced into the first branch pipe 62. The first branch pipe 62 is provided with a connection to the circulation main pipe. The outlet of the first cooling pipe 312 is connected to the first branch pipe 61, so that the cooling water that converges into the first branch pipe 62 is transported to the circulation main pipe 61, and the flow rate of the cooling water entering the low-pressure side condenser 2 is controlled by controlling the valve opening of the first control valve 611 on the circulation main pipe 61. Of course, in order to facilitate the control of the amount of cooling water entering the first branch pipe 62, the outlet of the first cooling pipe 312 is provided with a second control valve 313, and the valve opening of the second control valve 313 is controlled to control the amount of cooling water flowing into the first branch pipe 62 of a single first cooling pipe 312. The cooling water passing through the first control valve 611 first enters the second branch pipe 63, and then enters the corresponding second cooling pipe 322 to condense the high-temperature steam in the low-pressure side condenser 2. In order to facilitate the control of the flow rate entering the second cooling pipe 322, a third control valve 323 is provided at the inlet of the second cooling pipe 322, so that the flow rate of cooling water entering the corresponding second cooling pipe 322 is controlled by controlling the valve opening of the third control valve 323.

[0030] Of course, in some feasible methods, different first cooling tubes 312 and second cooling tubes 322 can be selected to insert cooling water according to specific working conditions. For example, in some working conditions, the total number of first cooling tubes 312 is four, and the total number of second cooling tubes 322 is also four, wherein only the two middle first cooling tubes 312 and the two middle second cooling tubes 322 are required to work. At this time, the second control valve 313 on the two first cooling tubes 312 on the edge and the third control valve 323 on the two second cooling tubes 322 on the edge can be closed, so that cooling water can enter the corresponding first cooling tubes 312 and the second cooling tubes 322 to condense the hot steam in the high-pressure side condenser 1 and the low-pressure side condenser 2.

[0031] Of course, in order to further control the circulation of cooling water in the first cooling pipe 312 and the second cooling pipe 322 , corresponding second control valves 313 and third control valves 323 may also be provided at the inlet of the first cooling pipe 312 and the outlet of the second cooling pipe 322 , respectively.

[0032] In some practicable embodiments, the water circulation connection mechanism 6 in the condenser assembly further includes a plurality of circulation sub-pipes 64, the number of the circulation sub-pipes 64 corresponds to the number of the first cooling pipes 312, and each circulation sub-pipe 64 is provided with a fourth control valve 641. The first cooling pipe 312 and the second cooling pipe 322 are arranged in a group, and the circulation sub-pipe 64 is used to connect the first cooling pipe 312 and the second cooling pipe 322 in the same group. Thus, it is selected whether the circulation main pipe 61 flows or the corresponding circulation sub-pipe 64 flows according to the specific working conditions. For example, when the first control valve 611 on the circulation main pipe 61 fails and cannot be opened, the corresponding fourth control valve 641 in the circulation sub-pipe 64 can be opened to connect the corresponding first cooling pipe 312 and the second cooling pipe 322 so that the cooling water can circulate, thereby ensuring that the hot steam in the high-pressure side condenser 1 and the low-pressure side condenser 2 is condensed into water.

[0033] In order to further control the flow in the first cooling pipe 312 and the second cooling pipe 322, in some feasible embodiments, the inlet of the circulation sub-pipe 64 is located downstream of the second control valve 313 of the corresponding first cooling pipe 312, and the outlet of the circulation sub-pipe 64 is located upstream of the third control valve 323 of the corresponding second cooling pipe 322.

[0034] In addition, the condenser assembly also includes an exhaust mechanism 7, wherein the exhaust mechanism 7 includes a first exhaust mechanism 71 and a second exhaust mechanism 72, the first exhaust mechanism 71 and the second exhaust mechanism 72 are arranged at intervals at both ends of the high-pressure side condenser 1 and the low-pressure side condenser 2 in the third direction, the first exhaust mechanism 71 includes a first exhaust main pipe 711 extending in the first direction and a plurality of first exhaust branch pipes 712 connected to the first exhaust main pipe 711, a fifth control valve 713 is arranged on each of the first exhaust branch pipes 712, and the first exhaust branch pipes 712 extend in the second direction and extend into the upper portions of the corresponding first overflow tray 43 and the second overflow tray 44. The part is used to facilitate the suction of non-condensable gas at the first overflow tray 43 and the second overflow tray 44. The air passing through the first air extraction branch pipe 712 is collected in the first air extraction main pipe 711 for discharge. The second air extraction mechanism 72 includes a second air extraction main pipe 721 and a plurality of second air extraction branch pipes 722 connected to the second air extraction main pipe 721. Each second air extraction branch pipe 722 is provided with a sixth control valve 723. The second air extraction branch pipe 722 is located at the upper part of the first condensation chamber 311 and the second condensation chamber 321, and is used to extract non-condensable gas in the condensation chamber. The air passing through the second air extraction branch pipe 722 is collected in the second air extraction main pipe 721 for discharge.

[0035] In a second aspect of the present disclosure, a power generation device is provided, comprising the above-mentioned condenser assembly. The power generation device comprises all the beneficial effects of the condenser assembly, which will not be described in detail here.

[0036] The preferred embodiments of the present disclosure are described in detail above in conjunction with the accompanying drawings; however, the present disclosure is not limited to the specific details in the above embodiments. Within the technical concept of the present disclosure, a variety of simple modifications can be made to the technical solution of the present disclosure, and these simple modifications all fall within the protection scope of the present disclosure.

[0037] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present disclosure will not further describe various possible combinations.

[0038] In addition, various embodiments of the present disclosure may be arbitrarily combined, and as long as they do not violate the concept of the present disclosure, they should also be regarded as the contents disclosed by the present disclosure.

Claims

1. A condenser assembly, characterized in that: include: High pressure side condenser and low pressure side condenser, The condensing mechanism comprises a first condensing mechanism and a second condensing mechanism, wherein the first condensing mechanism is arranged in the high-pressure side condenser and is used to condense the hot steam passing through the high-pressure side condenser into water, and the second condensing mechanism is arranged in the low-pressure side condenser and is used to condense the hot steam passing through the low-pressure side condenser into water. The detection mechanism comprises a first detection mechanism and a second detection mechanism, wherein the first detection mechanism is arranged below the first condensing mechanism, and is used to guide the condensed water formed by the high-pressure side condenser and the cooling water leaked from the first condensing mechanism, and to sample and detect the merged water, and the second detection mechanism is arranged below the second condensing mechanism, and is used to guide the condensed water formed by the low-pressure side condenser and the cooling water leaked from the second condensing mechanism, and to sample and detect the merged water; The heat recovery mechanism comprises a first hot well, a second hot well and a heat recovery pipe connecting the first hot well and the second hot well, wherein the first hot well is located below the first detection mechanism, a spray pipe and a drain port are provided in the first hot well, the spray pipe is located above the drain port, the spray pipe is connected to the second end of the heat recovery pipe, a plurality of guide grooves are provided at the bottom of the second hot well, the height of the guide grooves gradually decreases along a first direction, and the lowest guide groove is connected to the first end of the heat recovery pipe.

2. The condenser assembly according to claim 1, characterized in that: The first condensation mechanism includes a plurality of first condensation chambers independently arranged in sequence along a first direction and a first cooling pipe arranged in each of the first condensation chambers, the first cooling pipe is used to pass cooling water so that the hot steam entering the first condensation chamber is condensed into water, the first condensation chamber is provided with a first inlet and a first outlet in the second direction, the first inlet is used to receive steam, and the first outlet is used to guide condensed water after the hot steam is condensed; The second condensation mechanism includes a plurality of second condensation chambers independently arranged in sequence along the first direction and a second cooling pipe arranged in each of the second condensation chambers. The second cooling pipe is used to pass cooling water so that the hot steam entering the second condensation chamber is condensed into water. The second condensation chamber is provided with a second inlet and a second outlet in the second direction. The second inlet is used to receive steam, and the second outlet is used to guide condensed water after the hot steam is condensed.

3. The condenser assembly according to claim 2, characterized in that: The condenser assembly also includes a water circulation connection mechanism, which includes a circulation main pipe, a first branch pipe and a second branch pipe, wherein the first branch pipe and the second branch pipe are respectively connected to two ends of the circulation main pipe, a first control valve is provided on the circulation main pipe, the first branch pipe is connected to outlets of a plurality of the first cooling pipes, the second branch pipe is connected to inlets of a plurality of the second cooling pipes, a second control valve is provided at the outlet of the first cooling pipe, and a third control valve is provided at the inlet of the second cooling pipe.

4. The condenser assembly according to claim 3, characterized in that: The water circulation connection mechanism also includes a plurality of circulation sub-pipes, and the number of the circulation sub-pipes corresponds one-to-one to that of the first cooling pipes. A fourth control valve is provided on each of the circulation sub-pipes. The first cooling pipe and the second cooling pipe are arranged in a group, and the circulation sub-pipe is used to connect the first cooling pipe and the second cooling pipe in the same group.

5. The condenser assembly according to claim 4, characterized in that: The inlet of the circulation sub-pipe is located downstream of the second control valve of the corresponding first cooling pipe, and the outlet of the circulation sub-pipe is located upstream of the third control valve of the corresponding second cooling pipe.

6. The condenser assembly according to claim 2, characterized in that: The first detection mechanism includes a first overflow pan, the first overflow pan is located below the first cooling pipe, a first gap is provided between the first overflow pan and the inner side wall of the high-pressure side condenser, and the first gap is used to overflow the condensed water received by the first overflow pan into the first hot well; The second detection mechanism includes a second overflow pan, which is located below the second cooling pipe. A second gap is provided between the second overflow pan and the inner wall of the low-pressure side condenser, and the second gap is used to overflow the condensed water received by the second overflow pan into the second hot well.

7. The condenser assembly according to claim 2, characterized in that: The first detection mechanism includes a first overflow pan, the first overflow pan is located below the first cooling pipe, a plurality of first partitions are provided in the first overflow pan, the first partitions are used to divide the first overflow pan into a plurality of first water storage sections corresponding to the first condensing chambers one by one, a first gap is located between the first water storage section and the inner side wall of the high-pressure side condenser, and the first gap is used to overflow the condensed water received by each of the first water storage sections into the first hot well; The second detection mechanism includes a second overflow pan, which is located below the second cooling pipe. A plurality of second partitions are provided in the second overflow pan, which divide the second overflow pan into a plurality of second water storage sections corresponding one to one with the second condensing chamber. A second gap is located between the second water storage section and the inner side wall of the low-pressure side condenser, and the second gap is used to overflow the condensed water received by each second water storage section into the second hot well.

8. The condenser assembly according to claim 7, characterized in that: The detection mechanism also includes a detector, and the first detection mechanism also includes a plurality of first conduits, the first conduits are arranged in a one-to-one correspondence with the first water storage section, the first end of the first conduit is connected to the first water storage section, and the second end is connected to the detector, and the second detection mechanism also includes a plurality of second conduits, the second conduits are arranged in a one-to-one correspondence with the second water storage section, the first end of the second conduit is connected to the second water storage section, and the second end is connected to the detector.

9. The condenser assembly according to claim 2, characterized in that: The spray pipe comprises a spray main pipe extending in a first direction and a plurality of spray branch pipes extending in a third direction, the spray main pipe is tapered in a direction away from the heat recovery pipe, and the spray branch pipes are provided with a plurality of spray holes which are spaced apart and open downward; There are multiple spray branch pipes, which are located on both sides of the spray main pipe. The spray branch pipes on the same side are arranged at intervals, and the cross-sectional area of ​​the spray branch pipe gradually decreases in the direction away from the spray main pipe.

10. A power generation device, characterized in that: The condenser assembly comprises the condenser assembly according to any one of claims 1 to 9.

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