Unpowered deaerator dead steam recovery system

Abstract

The utility model discloses an unpowered deaerator dead steam recovery system, and particularly relates to the technical field of deaerator dead steam recovery, the unpowered deaerator dead steam recovery system comprises a deaerator main body, a recovery heat exchanger and a saline water tank which are sequentially distributed from left to right, a frame is arranged on the outer side of the deaerator main body, and the recovery heat exchanger and the saline water tank are both arranged in the frame. A hose is fixedly arranged at the top end of the deaerator body, one end of the hose communicates with the bottom of one side of the recycling heat exchanger, and a first hot water pipe is fixedly arranged on one side of the top end of the recycling heat exchanger. According to the utility model, the recovery heat exchanger, the deaerator main body and the brine tank are matched, the cooled hot air in the recovery heat exchanger is emptied through the emptying pipe for reuse, and the dead steam condensate water in the recovery heat exchanger flows into the brine tank through the condensate pipe, so that the energy is greatly saved; and the deaerator main body, the recovery heat exchanger and the brine tank are integrated together through the frame, so that the use and control are convenient, and meanwhile, the recovery heat exchanger, the first hot water pipe and the second hot water pipe are convenient to overhaul.

Description

Technical Field

[0001] The utility model relates to the technical field of exhaust steam recovery of deaerators, and more specifically to an exhaust steam recovery system of an unpowered deaerator. Background Art

[0002] Thermal deaerator is a new type of deoxidation device, which can remove dissolved oxygen and other gases in the feed water of the thermal system and prevent corrosion of thermal equipment. It is an important equipment to ensure the safe operation of power plants and industrial boilers. At present, most power plants use boiler feed water deoxidation. This method is simple, reliable and has good deoxidation effect, but it also causes a considerable amount of steam to be discharged with the exhaust gas, resulting in a large amount of clean steam waste and a large amount of heat loss. After the thermal deaerator is deoxidized by steam, a large amount of flash steam is discharged, which not only wastes energy but also affects the environment. Therefore, most existing power plants will use thermal deaerator exhaust steam recovery system to solve the above problems.

[0003] For example, the prior art publication number CN206669710U is a non-powered recovery device for heat and condensate of deoxygenated exhaust steam. This utility model recovers the deoxygenated exhaust steam condensate as boiler water while ensuring the safe and normal operation of the deaerator. At the same time, it recovers the heat of the deoxygenated exhaust steam for heating desalted water. The overall system has no power requirements and is energy-saving and environmentally friendly.

[0004] However, the above-mentioned prior art still has the following problems when in use: the above-mentioned deoxygenation exhaust steam heat and condensate unpowered recovery device rotating the deaerator, the first-stage condenser and the second-stage condenser are not distributed in a centralized manner, which is not convenient for management and maintenance. Based on this, the utility model provides an unpowered deaerator exhaust steam recovery system that is easy to centrally manage. Utility Model Content

[0005] In order to overcome the above-mentioned defects of the prior art, the utility model provides a non-powered deaerator exhaust steam recovery system, which cooperates with a recovery heat exchanger, a deaerator main body and a brine tank. The hot air cooled in the recovery heat exchanger is discharged through an exhaust pipe for reuse, and the exhaust steam condensate in the recovery heat exchanger flows into the brine tank through the condensate pipe, which greatly saves energy. The deaerator main body, the recovery heat exchanger and the brine tank are concentrated together through a frame for easy use and control, and it is also convenient to inspect and repair the recovery heat exchanger, the first hot water pipe and the second hot water pipe, so as to solve the problems arising from the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a non-powered deaerator exhaust steam recovery system, comprising a deaerator body, a recovery heat exchanger and a brine tank distributed in sequence from left to right, a frame is provided on the outside of the deaerator body, the recovery heat exchanger and the brine tank are both arranged inside the frame, a hose is fixedly provided on the top of the deaerator body, one end of the hose is connected to the bottom of one side of the recovery heat exchanger, a first hot water pipe is fixedly provided on one side of the top of the recovery heat exchanger, a second hot water pipe is fixedly provided on the other side of the top of the recovery heat exchanger, the bottom end of the first hot water pipe is connected to the top of the deaerator body, a condensate pipe is fixedly provided on the bottom end of the recovery heat exchanger, one end of the condensate pipe is connected to the inside of the brine tank, ladders are fixedly provided on the outer walls on both sides of the frame, and guardrails are fixedly provided on the front and back sides of the top of the frame.

[0007] In a preferred embodiment, two pads are provided on the inner wall of the bottom end of the frame, and sliders are fixed on both sides of the bottom ends of the two pads. A plurality of slide grooves adapted to the sliders are opened on the inner wall of the bottom end of the frame, and a plurality of sliders are respectively slidably arranged in the plurality of slide grooves. The pads are pulled to move the deaerator body and the brine tank out of the frame, thereby facilitating the disassembly of the deaerator body and the brine tank.

[0008] In a preferred embodiment, the deaerator body and the brine tank are respectively fixed on the top of two pads, which facilitates the installation and removal of the deaerator body and the brine tank.

[0009] In a preferred embodiment, mounting plates are fixedly provided at both the front and rear ends of the recovery heat exchanger, a mounting groove matched with the mounting plate is opened on the frame, the mounting plate is arranged in the mounting groove, the mounting plate is fixed to the frame, and the mounting plate and the frame are fixed by bolts, so as to facilitate the recovery heat exchanger to be moved downward and the recovery heat exchanger to be disassembled.

[0010] In a preferred embodiment, a drain pipe is fixedly provided on the top of the recovery heat exchanger close to the brine tank, and a plurality of grooves are opened at the bottom of the frame, and the plurality of grooves are evenly distributed at the bottom of the frame to facilitate the movement of the frame by a forklift.

[0011] In a preferred embodiment, solenoid valves are fixedly provided on the first hot water pipe, the second hot water pipe, the hose and the condensate water pipe for controlling the opening and closing of the first hot water pipe, the second hot water pipe, the hose and the condensate water pipe.

[0012] In a preferred embodiment, threaded holes are provided on both sides of the top of the frame, threaded rods are threadedly connected to the threaded holes, and rings are fixed on the tops of the two threaded rods. The two rings are respectively mounted on the first hot water pipe and the second hot water pipe for supporting the first hot water pipe and the second hot water pipe.

[0013] Technical effects and advantages of the utility model:

[0014] 1. The utility model cooperates with the recovery heat exchanger, the deaerator body and the brine tank. The hot air cooled in the recovery heat exchanger is discharged through the exhaust pipe for reuse, and the exhaust steam condensed water in the recovery heat exchanger flows into the brine tank through the condensed water pipe, which greatly saves energy. The deaerator body, the recovery heat exchanger and the brine tank are concentrated together through a frame, which is convenient for use and control, and at the same time, it is convenient to repair the recovery heat exchanger, the first hot water pipe and the second hot water pipe.

[0015] 2. By setting pads at the bottom of the deaerator body and the brine tank, the pads are pulled out of the frame to facilitate the staff to install and disassemble the deaerator body and the brine tank. At the same time, mounting plates are set on the recovery heat exchanger. When disassembling the recovery heat exchanger, loosen the bolts on the mounting plate to move the recovery heat exchanger down, so as to facilitate the staff to disassemble the recovery heat exchanger. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 It is a side view of the overall structure of the utility model;

[0018] Figure 3 This is the overall structural front view of the utility model;

[0019] Figure 4 It is a schematic diagram of the framework of the utility model;

[0020] Figure 5 It is a bottom view of the frame of the present utility model.

[0021] The accompanying drawings are marked as follows: 1. deaerator body; 2. recovery heat exchanger; 3. brine tank; 4. frame; 5. hose; 6. first hot water pipe; 7. second hot water pipe; 8. condensate pipe; 9. ladder; 10. guardrail; 11. pad; 12. slider; 13. slide; 14. mounting plate; 15. mounting groove; 16. drain pipe; 17. groove; 18. solenoid valve; 19. threaded hole; 20. threaded rod 21. collar. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] Refer to the instruction manual Figure 1-5The utility model provides a non-powered deaerator exhaust steam recovery system, comprising a deaerator body 1, a recovery heat exchanger 2 and a brine tank 3 which are sequentially arranged from left to right, a frame 4 is arranged outside the deaerator body 1, the recovery heat exchanger 2 and the brine tank 3 are both arranged inside the frame 4, a hose 5 is fixedly arranged at the top of the deaerator body 1, and one end of the hose 5 is connected to the bottom of one side of the recovery heat exchanger 2;

[0024] A first hot water pipe 6 is fixedly provided on one side of the top of the recovery heat exchanger 2, a second hot water pipe 7 is fixedly provided on the other side of the top of the recovery heat exchanger 2, the bottom end of the first hot water pipe 6 is connected to the top of the deaerator body 1, a condensate pipe 8 is fixedly provided on the bottom end of the recovery heat exchanger 2, one end of the condensate pipe 8 is connected to the inside of the brine tank 3, ladders 9 are fixedly provided on the outer walls on both sides of the frame 4, and guardrails 10 are fixedly provided on both sides of the top of the frame 4;

[0025] In addition, a drain pipe 16 is fixedly provided on the top of the recovery heat exchanger 2 near the brine tank 3, and a plurality of grooves 17 are opened at the bottom of the frame 4. The plurality of grooves 17 are evenly distributed at the bottom of the frame 4, so as to facilitate the movement of the frame 4 by a forklift. The first hot water pipe 6, the second hot water pipe 7, the hose 5 and the condensate water pipe 8 are all fixedly provided with a solenoid valve 18 for controlling the opening and closing of the first hot water pipe 6, the second hot water pipe 7, the hose 5 and the condensate water pipe 8.

[0026] When in use, the second hot water pipe 7 is connected to the auxiliary economizer, and the hot water in the auxiliary economizer is transmitted to the recovery heat exchanger 2. The exhaust steam is cooled by the recovery heat exchanger 2 and then enters the deaerator body 1 through the first hot water pipe 6. The exhaust steam in the deaerator body 1 enters the recovery heat exchanger 2 through the hose 5. The cooled hot air is discharged through the exhaust pipe 16, and the condensed water of the exhaust steam flows into the brine tank 3 through the condensed water pipe 8, so as to collect the condensed water in the exhaust steam. The deaerator body 1, the recovery heat exchanger 2 and the brine tank 3 are concentrated together through the frame 4 to facilitate use and management. At the same time, ladders 9 are set on both sides of the frame 4. The staff can go to the top of the frame 4 with the help of the ladder 9, so as to facilitate the staff to inspect the recovery heat exchanger 2, the first hot water pipe 6 and the second hot water pipe 7, which is more convenient to use.

[0027] Refer to the instruction manual Figure 1-5 The inner wall at the bottom end of the frame 4 is provided with two pads 11. Specifically, the pads 11 are fixed to the frame 4 by screws, so as to improve the stability of the pads 11. Slide blocks 12 are fixed on both sides of the bottom ends of the two pads 11. The inner wall at the bottom end of the frame 4 is provided with a plurality of slide grooves 13 adapted to the slide blocks 12. The plurality of slide blocks 12 are respectively slidably arranged in the plurality of slide grooves 13. The pads 11 are pulled to move the deaerator body 1 and the brine tank 3 out of the frame 4, so as to facilitate the disassembly of the deaerator body 1 and the brine tank 3.

[0028] In addition, the deaerator body 1 and the brine tank 3 are respectively fixed to the top of the two pads 11 by multiple bolts, which is convenient for installing and disassembling the deaerator body 1 and the brine tank 3. The front and rear ends of the recovery heat exchanger 2 are fixed with mounting plates 14. The frame 4 is provided with mounting grooves 15 adapted to the mounting plates 14. The mounting plates 14 are arranged in the mounting grooves 15. The mounting plates 14 are fixed to the frame 4. The mounting plates 14 are fixed to the frame 4 by bolts, which is convenient for driving the recovery heat exchanger 2 to move downward and disassembling the recovery heat exchanger 2.

[0029] Moreover, threaded holes 19 are provided on both sides of the top of the frame 4, and threaded rods 20 are connected to the inner threads of the threaded holes 19. Rings 21 are fixed on the tops of the two threaded rods 20. The two rings 21 are respectively mounted on the first hot water pipe 6 and the second hot water pipe 7 for supporting the first hot water pipe 6 and the second hot water pipe 7.

[0030] By setting a pad 11 at the bottom of the deaerator body 1 and the brine tank 3, the pad 11 is pulled out of the frame 4, which makes it convenient for workers to install and disassemble the deaerator body 1 and the brine tank 3. At the same time, a mounting plate 14 is set on the recovery heat exchanger 2. When disassembling the recovery heat exchanger 2, the bolts on the mounting plate 14 are loosened to move the recovery heat exchanger 2 downward, thereby making it convenient for workers to disassemble the recovery heat exchanger 2.

[0031] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model should be included in the protection scope of the present utility model.

Claims

1. An unpowered deaerator exhaust steam recovery system, characterized in that: The deaerator comprises a deaerator body (1), a recovery heat exchanger (2) and a brine tank (3) which are arranged in sequence from left to right. A frame (4) is arranged outside the deaerator body (1), and the recovery heat exchanger (2) and the brine tank (3) are both arranged inside the frame (4); A hose (5) is fixedly provided at the top of the deaerator body (1), one end of the hose (5) is connected to the bottom of one side of the recovery heat exchanger (2), a first hot water pipe (6) is fixedly provided at one side of the top of the recovery heat exchanger (2), a second hot water pipe (7) is fixedly provided at the other side of the top of the recovery heat exchanger (2), the bottom end of the first hot water pipe (6) is connected to the top of the deaerator body (1), a condensate pipe (8) is fixedly provided at the bottom of the recovery heat exchanger (2), one end of the condensate pipe (8) is connected to the inside of the brine tank (3); Ladders (9) are fixedly provided on the outer walls of both sides of the frame (4), and guardrails (10) are fixedly provided on the front and rear sides of the top of the frame (4).

2. The unpowered deaerator exhaust steam recovery system according to claim 1, characterized in that: The inner wall at the bottom end of the frame (4) is provided with two pads (11), and sliders (12) are fixedly provided on both sides of the bottom ends of the two pads (11). The inner wall at the bottom end of the frame (4) is provided with a plurality of slide grooves (13) adapted to the sliders (12), and the plurality of sliders (12) are slidably arranged in the plurality of slide grooves (13) respectively.

3. The unpowered deaerator exhaust steam recovery system according to claim 2, characterized in that: The deaerator body (1) and the brine tank (3) are respectively fixed on the top of two pads (11), which facilitates the installation and removal of the deaerator body (1) and the brine tank (3).

4. The unpowered deaerator exhaust steam recovery system according to claim 1, characterized in that: The recovery heat exchanger (2) is fixedly provided with mounting plates (14) at both the front and rear ends, the frame (4) is provided with a mounting groove (15) adapted to the mounting plate (14), the mounting plate (14) is arranged in the mounting groove (15), and the mounting plate (14) is fixed to the frame (4).

5. The unpowered deaerator exhaust steam recovery system according to claim 1, characterized in that: A drain pipe (16) is fixedly provided on the top of the recovery heat exchanger (2) close to the brine tank (3), and a plurality of grooves (17) are provided at the bottom of the frame (4), and the plurality of grooves (17) are evenly distributed at the bottom of the frame (4).

6. The unpowered deaerator exhaust steam recovery system according to claim 1, characterized in that: The first hot water pipe (6), the second hot water pipe (7), the hose (5) and the condensate water pipe (8) are all fixedly provided with solenoid valves (18) for controlling the opening and closing of the first hot water pipe (6), the second hot water pipe (7), the hose (5) and the condensate water pipe (8).

7. The unpowered deaerator exhaust steam recovery system according to claim 1, characterized in that: Threaded holes (19) are provided on both sides of the top of the frame (4); threaded rods (20) are connected to the threaded holes (19); sleeve rings (21) are fixed to the tops of the two threaded rods (20); the two sleeve rings (21) are respectively sleeved on the first hot water pipe (6) and the second hot water pipe (7) to support the first hot water pipe (6) and the second hot water pipe (7).

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