Continuous exhaust steam recovery device of deaerator

Abstract

The utility model provides a continuous exhaust steam recovery device of a deaerator, and belongs to the technical field of thermal power generation. The system mainly comprises a deaerator, a condensing system, a condenser and three cooling water inlet loops, namely water feeding pump sealing water return, condensate pump mechanical sealing water return and shaft adding drainage, and continuous exhaust steam can be recycled through valve switching and can also be exhausted to the atmosphere. Water feeding pump sealing water, shaft seal heater drain water and condensate pump mechanical seal return water are recycled in a centralized mode, the recycled water serves as cooling water to cool continuous exhaust steam of a deaerator, the continuous exhaust steam of the deaerator is cooled and then condensed into water to be recycled, the temperature of the cooling water is increased, dissolved oxygen can be reduced, and the service life of the deaerator is prolonged. And the equipment safety and the heat economy can be improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the field of thermal power generation technology, concretely relates to a continuous steam exhaust recovery device of deaerator. BACKGROUND

[0002] The production process of thermal power plant is that the chemical energy of fuel is converted into heat energy and is transmitted to the feed water in the boiler, the feed water is converted into high-temperature and high-pressure steam, the high-temperature and high-pressure steam is sent into the steam turbine through the pipeline, the steam turbine is rotated to work, and the steam turbine drives the generator to rotate to generate electric energy. The deaerator is an important auxiliary equipment of the power plant, and is usually composed of a shell, inner parts (such as a water spray tray, a spray device and a filler layer), a connecting pipe and the like. The working principle is based on Henry's law and Dalton's law of partial pressure. The feed water is heated to saturation temperature, the partial pressure of dissolved gas is reduced, and the oxygen and other gases are caused to escape. The oxygen brought by the condensed water is stored in the deaerator. In order to exhaust the gas, the deaerator is provided with a continuous steam exhaust device. The steam is exhausted into the atmosphere, a large amount of heat is wasted, and the desalted water is wasted. The steam can be recycled after the oxygen is removed. Therefore, the continuous steam exhaust recovery device of the condenser is provided for the above problems. SUMMARY

[0003] The utility model provides a kind of deaerator continuous steam exhaust recovery device, to solve the technical problem that the steam exhausted by deaerator in prior art is exhausted into atmosphere, this part of steam is not recycled, causing resource waste.

[0004] In order to achieve the above purpose, the utility model adopts the following technical scheme,

[0005] A kind of deaerator continuous steam exhaust recovery device, including deaerator, the outlet of deaerator is connected with the inlet pipeline of condensing system, condensing system is placed in water tank, condensing system is provided with condensate water outlet distributor on outlet pipeline, condensate water outlet distributor is provided with cooling water inlet distributor below, the inlet of cooling water inlet distributor is connected with three cooling water inlet circuits of feed water pump sealing water return, condensate water pump mechanical seal return and shaft drain, water tank is provided with float, the lower end of float is provided with pilot valve, the lower end of pilot valve is provided with regulating valve core, the lower end of pilot valve extends second connecting structure downward, the lower end of second connecting structure passes through the bottom of regulating valve core, the lower end of regulating valve core is connected with the first inlet pipeline of condenser.

[0006] The condensing system includes a steam inlet header and a condensate water outlet distributor, the steam inlet header and the condensate water outlet distributor are communicated, and a plurality of cooling coil pipes are arranged on the steam inlet header and the condensate water outlet distributor, and the condensate water header is communicated with the inlet pipeline of the condensate water outlet distributor.

[0007] The condensate water outlet distributor is uniformly provided with a plurality of small holes.

[0008] The connecting device of the lower end of the floating ball comprises a control rod, the lower end of the floating ball is connected with the upper end of the control rod, the lower end of the control rod is connected with a connecting rod through a steering head, and the lower end of the connecting rod is connected with the upper end surface of the pilot valve.

[0009] The upper end of the pilot valve is provided with a water inlet cylinder, spring seats are arranged on the inner side walls of both ends in the water inlet cylinder, one end of a spring is fixed on the spring seat, and the other end of the spring is connected and fixed with the upper end surface of the adjusting valve core.

[0010] The first inlet pipeline of the condenser is provided with an isolation valve, the inlet of the condenser is also provided with a second inlet pipeline, the second inlet pipeline is provided with an adjusting valve, the inlet of the second inlet pipeline is connected with a water outlet uniform flow pipe, and the water outlet uniform flow pipe is fixed on the inner side wall of the water tank.

[0011] The upper end of the water tank is provided with a large steam discharge pipe on one side, and the upper end of the water tank is connected with a liquid level meter through a liquid level meter isolation valve on the other side.

[0012] The condensing system is connected with a condensate sampling door, and the lower end of the water tank is connected with a water tank sampling valve and a water tank drain door.

[0013] The lower end of the water tank is also connected with a remote liquid level meter interface.

[0014] The cooling water inlet of the water tank is connected with three water inlet pipelines, which are a water supply pump sealing water return, a condensate pump mechanical sealing return and shaft drainage.

[0015] Compared with the prior art, the utility model has the beneficial effects that:

[0016] The utility model discloses a continuous steam recovery device of deaerator, and the cooling water inlet pipe junction entrance has the feed water pump sealing water backwater, shaft seal heater drain backwater, condensate pump mechanical seal sealing water backwater, and the backwater is as the cooling water and enters the cooling water distributor through the pipeline, and a plurality of small holes are opened on the cooling water distributor, and the cooling water evenly flows into the water tank through the distributor, and the cooling water distributor is placed on the upper portion of liquid level, and the continuous steam of deaerator is connected from the both sides top of deaerator, and the pipeline is installed with throttle hole, and the steam flow is controlled, and the continuous steam can be recycled through the valve door switching, and the continuous steam can also discharge atmosphere, and the continuous steam is introduced into the steam inlet header through the cooler inlet pipe, and the steam inlet header is connected with a plurality of annular stainless steel heat exchange pipes, and the steam in the heat exchange pipe exchanges heat with the cooling water outside the pipe, and the steam is condensed into condensate water after releasing heat, and the condensate water enters the condensate water distributor through the condensate water header, and the condensate water distributor is installed on the upper portion of the cooling water distributor, and evenly flows down through the porous pipeline, and the oxygen in water can quickly escape. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 Figure 1 is the structure diagram of the continuous steam recovery device of deaerator.

[0018] The utility model discloses a continuous steam recovery device of deaerator, and the cooling water inlet pipe junction entrance has the feed water pump sealing water backwater, shaft seal heater drain backwater, condensate pump mechanical seal sealing water backwater, and the backwater is as the cooling water and enters the cooling water distributor through the pipeline, and a plurality of small holes are opened on the cooling water distributor, and the cooling water evenly flows into the water tank through the distributor, and the cooling water distributor is placed on the upper portion of liquid level, and the continuous steam of deaerator is connected from the both sides top of deaerator, and the pipeline is installed with throttle hole, and the steam flow is controlled, and the continuous steam can be recycled through the valve door switching, and the continuous steam can also discharge atmosphere, and the continuous steam is introduced into the steam inlet header through the cooler inlet pipe, and the steam inlet header is connected with a plurality of annular stainless steel heat exchange pipes, and the steam in the heat exchange pipe exchanges heat with the cooling water outside the pipe, and the steam is condensed into condensate water after releasing heat, and the condensate water enters the condensate water distributor through the condensate water header, and the condensate water distributor is installed on the upper portion of the cooling water distributor, and evenly flows down through the porous pipeline, and the oxygen in water can quickly escape. The device has multiple functions, and the feed water pump sealing water, shaft seal heater drain and condensate pump mechanical seal sealing water backwater are recycled, and the cooling water is used to cool the continuous steam of deaerator after recycling, and the cooled continuous steam of deaerator is condensed into water and recycled, and the temperature of the cooling water is improved, and the dissolved oxygen can be reduced, and the equipment safety and thermal economy are improved. DETAILED DESCRIPTION

[0019] For further understanding the content of the utility model, the following makes detailed description to the utility model combining with the specific embodiment and the drawing. It should be understood that the embodiment is only explained to the utility model and is not limited.

[0020] The utility model provides a kind of deaerator continuous exhaust recovery device, refer to Figure 1 The implementation method of a kind of deaerator continuous exhaust recovery device in the structure schematic view in the figure is as follows:

[0021] The device is placed in a lower position in the condenser pit, mainly comprising a deaerator 1 and a water tank 24, the water tank 24 is provided with a condensing system, the outlet of the deaerator 1 is connected with the inlet of the condensing system; the outlet of the deaerator 1 is provided with two steam discharge passages, the two steam discharge passages are provided with steam discharge manual doors 2, the rear ends of the two steam discharge manual doors 2 are connected with throttle holes 3, the two steam discharge manual doors 2 are connected in parallel, the two throttle holes 3 are connected with a large steam discharge door 4 and a steam discharge recovery manual door 5 in parallel; the condensing system comprises a steam inlet header 7 and a condensate outlet distributor 10, the steam inlet header 7 and a condensate header 9 are communicated, the steam inlet header 7 and the condensate header 9 are provided with a plurality of disc cooling coil pipes 8, the disc cooling coil pipes 8 are annular stainless steel heat exchange pipes, the outlet of the condensate header 9 is communicated with the inlet pipeline of the condensate outlet distributor 10; the inlet of the steam inlet header 7 is provided with a cooler inlet pipe 6, the steam discharge outlet of the deaerator 1 is communicated with the cooler inlet pipe 6 through the steam discharge manual door 2, the throttle hole 3 and the steam discharge recovery manual door 5. The water tank 24 is provided with a floating ball 15, the lower end of the floating ball 15 is connected with a pilot valve 18 through a connecting structure, the connecting structure comprises a control rod 11, the lower end of the floating ball 15 is connected with the upper end of the control rod 11, the lower end of the control rod 11 is connected with a connecting rod 17 through a steering head 16, the lower end of the connecting rod 17 is connected with the pilot valve 18, the pilot valve 18 is located in a water inlet cylinder 12, the lower end surface of the pilot valve 18 is a conical structure, the pilot valve 18 is provided with an adjusting valve core 14 at the lower end, the upper end surface of the adjusting valve core 14 is matched with the lower end surface structure of the pilot valve 18, the lower end of the pilot valve 18 extends downwardly and is provided with a second connecting structure 53, the lower end of the second connecting structure 53 penetrates through the bottom of the adjusting valve core 14, and the bottom of the adjusting valve core 14 limits the movement of the lower end of the second connecting structure 53. The water inlet cylinder 12 is provided with spring seats 13 at both ends, one end of a spring 19 is connected with the spring seat 13, and the other end of the spring 19 is connected and fixed with the upper end surface of the adjusting valve core 14. The lower end of the adjusting valve core 14 is provided with a valve cylinder 20, the outer side wall of the valve cylinder 20 is provided with an O-shaped sealing ring 29, the lower end of the valve cylinder 20 is connected with a water outlet cylinder 21, the outlet of the water outlet cylinder 21 is connected with a water outlet pipeline 22, the water outlet pipeline 22 is connected with a first inlet pipeline of a condenser 31, the first inlet pipeline of the condenser 31 is provided with an isolation valve 30, the condenser 31 is further provided with a second inlet pipeline, the second inlet pipeline is provided with an adjusting valve 27, the front end of the adjusting valve 27 is provided with an adjusting valve front isolation valve 26, the rear end of the adjusting valve 27 is provided with an adjusting valve rear isolation valve 28, the inlet of the second inlet pipeline is provided with a water outlet flow equalizing pipe 25, and the water outlet flow equalizing pipe 25 is fixed on the inner side wall of the water tank 24.The water tank 24 is further provided with a cooling water distributor 45, the water inlet pipeline of the cooling water distributor 45 is connected to the feed water pump sealing water return 32, the condensate pump mechanical sealing return 33 and the shaft drain 34, the feed water pump sealing water return 32, the condensate pump mechanical sealing return 33 and the shaft drain 34 input the cooling water into the cooling water distributor 45, the cooling water distributor 45 is uniformly provided with a plurality of small holes, the cooling water 45 is uniformly sprayed into the water tank 24 through the small holes of the cooling water distributor 45, so that the heat exchange in the water tank 24 is more uniform, and meanwhile, the dissolved oxygen in the condensate water can be more easily escaped.

[0022] When the steam discharged from the deaerator 1 is recovered, the two side steam discharge manual doors 2 of the deaerator 1 and the rear end steam discharge recovery manual door 5 are in the open state, the deaerator 1 continuously discharges steam through the two side steam discharge manual doors 2, the throttling hole 3 and the steam discharge recovery manual door 5, the steam discharged from the deaerator 1 enters the condensing system through the cooler inlet pipe 6, the steam passes through the cooling coil 8 in the inlet steam header 7 and the condensate collecting tank 9 in the condensing system, the cooling water sprayed by the cooling water distributor 45 exchanges heat with the steam in the cooling coil 8, the steam is cooled to form condensate water, the deaerator 1 continuously discharges steam into the condensing system through the cooler inlet pipe 6, the steam discharged from the deaerator 1 has a certain pressure, the pressurized steam pressurizes the condensate water into the condensate water outlet distributor 10, the condensate water outlet distributor 10 is uniformly provided with a plurality of small holes, the condensate water uniformly sprayed through the small holes enters the water tank 24.

[0023] When the water tank 24 is not filled with water or the water level is extremely low, the spring seat 13 supports the spring 19, the spring 19 is in a natural stretched state, has a downward pressure on the adjusting valve core 14, so that the adjusting valve core 14 is tightly attached to the upper end of the valve barrel 20, at the same time, the self weight of the float ball 15 and the control rod 11 has a downward pressure on the pilot valve 18, so that the pilot valve 18 is tightly attached to the adjusting valve core 14, and the pilot valve 18 is in the closed state; at the same time, the isolation valve 30 of the condenser 31 inlet pipeline is in the open state.

[0024] When the water level in the water tank 24 exceeds the height of the control rod 11, the float ball 15 follows the rising water level and floats upwards. In order to avoid the instability of the float ball 15, a guide frame 23 is arranged at both ends of the control rod 11, both ends of the guide frame 23 are fixed on the inner wall of the water tank 24, and the control rod 11 is fixed at the middle part of the guide frame 23, so that the control rod 11 can move up and down along the guide frame 23. The float ball 15 floats upwards, driving the control rod 11 to move upwards, and the control rod 11 in turn drives the connecting rod 17 to move upwards through the steering head 16, and the connecting rod 17 drives the pilot valve 18 to move upwards, so that the pilot valve 18 is opened. The pilot valve 18 has a certain up-down displacement on the adjusting valve core 14, and after the pilot valve 18 moves upwards, a gap is generated between the pilot valve 18 and the adjusting valve core 14, and the water in the water tank 24 enters the adjusting valve core 14 through the gap. The center part of the adjusting valve core 14 has a center hole, the second connecting structure at the lower end of the pilot valve 18 extends downwards and passes through the round hole of the adjusting valve core 14, and is arranged at the lower end of the adjusting valve core 14. The bottom of the adjusting valve core 14 limits the second connecting structure. The water flows into the valve barrel 20 through the center hole of the adjusting valve core 14, and then enters the condenser 31 through the water outlet barrel 21 and the water outlet pipeline 22, and is recycled for discharging steam from the deaerator 1. Because the gap between the pilot valve 18 and the adjusting valve core 14 in the water tank 24 is small, the water flow rate in the water tank 24 is small, and the water inflow rate in the water tank 24 is greater than the water outflow rate, therefore, the water level in the water tank 24 continues to rise, the float ball 15 continues to float upwards, and in turn, the pilot valve 18 continues to move upwards, the second connecting structure 53 at the lower end of the pilot valve 18 moves upwards with the pilot valve 18, until the bottom of the adjusting valve core 14 contacts the lower end of the second connecting structure 53, the adjusting valve core 14 limits the second connecting structure 53, the second connecting structure 53 drives the adjusting valve core 14 to move upwards, the spring 19 at the upper end of the adjusting valve core 14 enters the compression state, and generates a downward pressure on the adjusting valve core 14. The buoyancy generated by the float ball 15 floating upwards has an upward pulling force on the adjusting valve core 14, when the upward pulling force is greater than the downward elastic force generated by the spring 19, the adjusting valve core 14 moves upwards, the valve barrel 20 at the lower end of the adjusting valve core 14 is provided with a water inlet, and as the adjusting valve core 14 moves upwards, the exposure area of the water inlet gradually increases, the water inflow rate into the water outlet barrel 21 is accelerated, and in turn, the water outflow rate in the water tank 24 is accelerated. When the adjusting valve core 14 is opened and the water outflow rate increases, the water level in the water tank 24 tends to be stable, the water inflow and outflow are balanced, when the cooling water 45 inflow rate decreases, the water level in the water tank 24 gradually decreases, the float ball 15 moves downwards with the water level, the upward pulling force gradually decreases, until the upward pulling force is less than the downward elastic force of the spring 19, under the action of the spring 19, the adjusting valve core 14 moves downwards and closes, and after the adjusting valve core 14 is fully closed, the water level continues to decrease, the float ball 15 moves downwards, the pilot valve 18 continues to move downwards, until the gap between the pilot valve 18 and the adjusting valve core 14 is closed.The second connecting structure 53 at the lower end of the pilot valve 18 disappears the upward pulling force of the adjusting valve core 14, and the upward floating force gradually decreases, the spring 19 gradually rebounds, and before the spring 19 rebounds to the original state, the adjusting valve core 14 and the water inlet between the valve cylinder 20 gradually decrease under the downward elastic force of the spring 19, but the water outlet can still be carried out, and the water outlet flow gradually decreases at this time; until the water inlet between the adjusting valve core 14 and the valve cylinder 20 is closed, the water tank 24 stops the water outlet, so that the water level balance in the water tank 24 is realized.

[0025] When the water level in the water tank 24 decreases slowly, and it is difficult to meet the water level balance in the water tank 24 through the movement of the adjusting valve core 14 and the pilot valve 18, the adjusting valve 27 is opened, and the water in the water tank 24 flows into the condenser 31 through the water outlet uniform flow pipe 25. The adjusting valve front isolation valve 26 and the adjusting valve rear isolation valve 28 before and after the adjusting valve 27 are always in the open state, and when the adjusting valve 27 needs to be overhauled, the adjusting valve front isolation valve 26 and the adjusting valve rear isolation valve 28 are adjusted to be closed.

[0026] In the further preferred embodiment of the utility model, the upper end of the water tank 24 is provided with a condensed water sampling door 48 on the outside, the lower end of the water tank 24 is provided with a water tank sampling valve 50 and a remote liquid level meter interface 51 on the outside, the water tank sampling valve 50 is used for periodically sampling the condensed water in the water tank 24 respectively, is used for monitoring water quality, so as to guarantee the stable operation of the deaerator continuous steam exhaust recovery device and the quality of steam condensate water, the remote liquid level meter interface 51 is convenient for observing liquid level change, and also serves as an adjusting valve adjusting signal. The bottom side of the water tank 24 is also provided with a water drain door 52, which is convenient for water drainage during the maintenance of the deaerator continuous steam exhaust recovery device. The upper end of the water tank 24 is also provided with a large steam exhaust pipe 46, and the water tank 24 is communicated with the atmosphere through the large steam exhaust pipe 46. The large steam exhaust pipe 46 can also serve as an overflow pipe of the water tank 24. When excess water is generated in the water tank 24, the excess water overflows from the large steam exhaust pipe 46. The upper end of the water tank 24 is also provided with an on-site liquid level meter 49, and the on-site liquid level meter 49 is provided with a liquid level meter isolation valve 47 on the communication pipeline of the water tank 24. The on-site liquid level meter can directly display the liquid level height in the water tank. When the operation personnel are on-site inspection, they can quickly understand the water tank liquid level condition by directly observing the on-site liquid level meter without the aid of other equipment. By observing the liquid level change trend, the operation personnel can judge the running state of the device. The continuous rise of the liquid level may mean that too much water is entered or the water is not drained smoothly, and the rapid drop of the liquid level may exist leakage problem. This helps to discover hidden troubles in time, and corresponding measures are taken, such as adjusting the valve opening, checking the pipeline connection and the like, so as to maintain the stability of the water tank water level, ensure the normal operation of the deaerator continuous steam exhaust recovery device, and improve the safety and thermal economy of the equipment. When the on-site liquid level meter needs to be maintained, overhauled or replaced, the liquid level isolation valve is closed to cut off the communication between the liquid in the water tank and the on-site liquid level meter, prevent liquid leakage, and provide a safe operating environment for the workers.

[0027] In another preferred scheme of the utility model, the water in the water tank 24 will fluctuate during the operation of the device, and the float ball 15, the control rod 11 and the connecting rod 17 will be subjected to forces in different directions. The steering head 16 is tightly connected with the control rod 11 and the connecting rod 17 through its structural design, so as to avoid disconnection or loosening phenomenon under stress, and ensure that the water level change signal can be stably transmitted from the float ball 15 to the pilot valve 18 and the regulating valve core 14, thereby guaranteeing stable operation of the device.

[0028] The inlet of the cooling water in the cooling water inlet distributor 45 includes but is not limited to the three return water mentioned above: the condensate pump mechanical seal return water 33 is connected as cooling water to increase the amount of cooling water and improve the cooling effect, the device is a positive pressure system to avoid air leakage into the condensate pump mechanical seal. The feed water pump sealing water return 32 flows from high to low, and the flow is more smooth, avoiding the problem of poor return of the feed water pump sealing water, and not directly connected with the condenser, avoiding the problem of easy leakage of vacuum or poor return of the traditional multi-stage water seal. The shaft drain is connected to the recovery device as the condensate after heat exchange of the shaft seal heater, and is not directly connected with the condenser negative pressure system, avoiding the leakage of vacuum, in order to improve the safety and economy of the shaft seal heater heat exchange, the shaft drain should maintain a certain liquid level, and the height of the adjusting pipe can be adjusted by adjusting the nut of the shaft seal heater water level adjuster, and the adjusting pipe and the shaft liquid level constitute a communication pipe, so that the shaft drain liquid level can be adjusted.

[0029] The shaft drain 34 is the shaft seal heater, in order to ensure that the shaft seal heater can better and safely drain, the shaft seal heater should maintain a certain water level when draining. For example Figure 1As shown in the figure, the shaft drain 34 is connected with the shaft water level regulator 35, the shaft water level regulator 35 comprises two symmetrical sleeves 36, the shaft drain 34 enters one side of the sleeve 36, and the two sleeves 36 are fixed through the reinforcing rib plate 44; the upper part of the two sleeves 36 is connected with a U-shaped adjusting pipe 41, both ends of the adjusting pipe 41 are inserted into one sleeve 36 respectively, after the shaft drain 34 enters one side of the sleeve 36, the shaft drain 34 continues to enter the other sleeve through the adjusting pipe 41, and then is output from the other sleeve and enters the cooling water inlet distributor 45; the adjusting pipe 41 and the inner wall of the sleeve 36 are fixed through the packing 38, the upper end of the packing 38 is provided with the packing gland 42, the adjusting pipe 41 and the outer wall of the sleeve 36 are fixed through the sleeve support plate 37 and the adjusting pipe support plate 40, the adjusting pipe support plate 40 is above the sleeve support plate 37, and the adjusting pipe support plate 40 is reinforced and fixed through the fastening nut 39; the sleeve support plate 37 is fixed through the fastening nut 39. When the water level in the shaft seal heater decreases, the fastening nut 39 and the adjusting nut 43 are manually rotated outward, the adjusting pipe 41 is moved downward along the inside of the sleeve 36, the cooling water supply flow rate of the shaft drain 34 is reduced, and the water level in the shaft seal heater is increased. If the water level in the shaft seal heater increases, the fastening nut 39 and the adjusting nut 43 are manually rotated outward, the adjusting pipe 41 is moved upward along the inside of the sleeve 36, the cooling water supply flow rate of the shaft drain 34 is increased, and the water level in the shaft seal heater is reduced.

[0030] The above examples are only used to illustrate the technical solutions of the present application, but not to limit it. Although the present application has been described in detail with reference to the above examples, those skilled in the art should understand that the specific embodiments of the present application can be modified or replaced, and any modification or replacement without departing from the spirit and scope of the present application should be covered in the protection scope of the claims of the present application.

Claims

1. A continuous steam bleed recovery device for a deaerator, characterized by, The application relates to a condensing system, which comprises a deaerator (1), an inlet pipeline of the deaerator (1) being connected with an outlet pipeline of a condensing system, a condensate water outlet distributor (10) being arranged on the outlet pipeline of the condensing system, the condensing system being arranged in a water tank (24), a cooling water inlet distributor (45) being arranged below the condensate water outlet distributor (10), three cooling water inlet circuits of a feed water pump sealing water return (32), a condensate water pump mechanical sealing water return (33) and shaft hydrophobic water (34) being connected with the inlet of the cooling water inlet distributor (45), a float ball (15) being arranged in the water tank (24), a pilot valve (18) being arranged below the float ball (15), an adjusting valve core (14) being arranged at the lower end of the pilot valve (18), a second connecting structure (53) extending downwardly from the lower end of the pilot valve (18), the lower end of the second connecting structure (53) penetrating through the bottom of the adjusting valve core (14), and the lower end of the adjusting valve core (14) being connected with a first inlet pipeline of a condenser (31).

2. A continuous steam bleed recovery device for a deaerator as defined in claim 1, wherein, The condensing system comprises a steam inlet header (7) and a condensate water outlet distributor (10), the steam inlet header (7) and the condensate water outlet distributor (10) are communicated, and a plurality of disc cooling coils (8) are arranged on the steam inlet header (7) and the condensate water outlet distributor (10).

3. A continuous steam bleed recovery device for a deaerator as defined in claim 2, wherein, The condensate water outlet distributor (10) is uniformly provided with a plurality of small holes.

4. A continuous steam bleed recovery device for a deaerator as defined in claim 1, wherein The connecting device at the lower end of the float ball (15) comprises a control rod (11), the lower end of the float ball (15) is connected with the upper end of the control rod (11), the lower end of the control rod (11) is connected with a connecting rod (17) through a steering head (16), and the lower end of the connecting rod (17) is connected with the upper end surface of the pilot valve (18).

5. A continuous steam bleed recovery device for a deaerator as defined in claim 1, wherein, The upper end of the pilot valve (18) is provided with a water inlet cylinder (12), spring seats (13) are arranged on the inner side walls at both ends in the water inlet cylinder (12), one end of a spring (19) is fixed on the spring seat (13), and the other end of the spring (19) is fixedly connected with the upper end surface of the adjusting valve core (14).

6. A continuous steam bleed recovery device for a deaerator as defined in claim 1, wherein The first inlet pipeline of the condenser (31) is provided with an isolation valve (30), the inlet of the condenser (31) is further provided with a second inlet pipeline, the second inlet pipeline is provided with an adjusting valve (27), the inlet of the second inlet pipeline is connected with a water outlet uniform flow pipe (25), and the water outlet uniform flow pipe (25) is fixed on the inner side wall of the water tank (24).

7. A continuous steam bleed recovery device for a deaerator as defined in claim 1, wherein The upper end of the water tank (24) is provided with a large steam discharge pipe (46) on one side, and the upper end of the water tank (24) is connected with a liquid level meter (49) through a liquid level meter isolation valve (47) on the other side.

8. A continuous steam bleed recovery device for a deaerator as defined in claim 1, wherein, The condensing system is connected with a condensate water sampling door (48), and the lower end of the water tank (24) is connected with a water tank sampling valve (50) and a water tank water discharge door (52).

9. A continuous steam bleed recovery device for a deaerator as defined in claim 8, wherein, The lower end of the water tank (24) is further connected with a remote liquid level meter interface (51).

10. The device for continuous steam recovery of a deaerator according to claim 1, characterized in that, The cooling water inlet of the water tank (24) is connected with three water inlet pipelines, which are respectively the feed water pump sealing water return (32), the condensate water pump mechanical sealing water return (33) and the shaft hydrophobic water (34).

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