Boiler steam heat recovery equipment

Abstract

The utility model relates to the technical field of heat recovery, and discloses boiler steam heat recovery equipment which comprises a hot water tank, the upper side of the hot water tank is connected with multiple sets of air inlet pipes, the lower sides of the air inlet pipes are connected with multiple sets of air inlet nozzles, and the left sides of the multiple sets of air inlet pipes are connected with an air inlet header pipe. The left side of the air inlet header pipe is connected with a first connecting pipe, the upper side of the hot water tank is connected with a second connecting pipe, the left side of the second connecting pipe is connected with a water inlet header pipe, the upper side of the water inlet header pipe is evenly connected with a plurality of sets of atomizing nozzles, and the lower side of the hot water tank is provided with a water outlet device. According to the scheme, the hot water tank, the air inlet pipe, the air inlet header pipe, the first connecting pipe, the second connecting pipe, the water inlet header pipe, the atomizing nozzles, the water outlet device and the heat exchange device are matched to quickly mix steam and desalted water, so that the harm generated after steam recovery of the high and low boilers is reduced, and the environmental protection efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of heat recovery, in particular to boiler steam heat recovery equipment. Background Art

[0002] Heat loss in thermal power plants is a difficult problem to control. Leakage in steam traps and leaks in steam seals of operating equipment result in heat waste. If the heat from the escaping steam is recovered and added to the system to increase the temperature of the desalted water, energy can be saved while reducing on-site pollution.

[0003] Conventional steam recovery processes often produce secondary pollution and have poor safety and reliability. In particular, the exhaust steam discharged from the deaerator contains a large amount of oxygen and carbon dioxide, which needs to be effectively mixed with desalted water to reduce pollution. The existing methods of mixing steam and desalted water mostly use a spraying method to ensure that the steam can be fully mixed with the desalted water. However, this method leads to a great waste of desalted water, causing the utilization rate of desalted water to increase sharply. For this reason, we propose a boiler steam heat recovery device. Utility Model Content

[0004] In view of the above situation, in order to overcome the defects of the prior art, the utility model provides a boiler steam heat recovery device, which effectively solves the above problems.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a boiler steam heat recovery device, comprising a hot water tank, wherein the upper side of the hot water tank is connected to multiple groups of air intake pipes, the lower side of the air intake pipes is connected to multiple groups of air intake nozzles, the left sides of the multiple groups of air intake pipes are connected to an air intake main pipe, the left side of the air intake main pipe is connected to a first connecting pipe, the upper side of the hot water tank is connected to a second connecting pipe, the left side of the second connecting pipe is connected to a water inlet main pipe, the upper side of the water inlet main pipe is evenly connected to multiple groups of atomizing nozzles, the lower side of the hot water tank is installed with a water outlet device, and the right side of the hot water tank is connected to a heat exchange device.

[0006] Preferably, the heat exchange device includes a heat exchange box, the inner wall of which is connected to multiple groups of plate heat exchangers, the right side of the heat exchange box is connected to a circulating water pipe, and the lower side of the circulating water pipe is connected to a first water pump.

[0007] Preferably, the water outlet device includes multiple groups of water outlet pipes, multiple groups of mixing blades are connected to the outer walls of the water outlet pipes, gears are connected to the left sides of the multiple groups of water outlet pipes, a motor is connected to the lower side of the hot water tank, the transmission end of the motor is connected to the rear water outlet pipe, the multiple groups of gears are meshed, water holes are opened on the outer sides of the gears, the right sides of the multiple groups of water outlet pipes are connected to the water outlet main pipe, and the right side of the water outlet main pipe is connected to the third connecting pipe.

[0008] Preferably, the inner wall of the hot water tank is connected to multiple groups of electric heating wires, and the outer side of the hot water tank is connected to a protective layer.

[0009] Preferably, a collecting box is connected to the right side of the heat exchange box, and a second water pump is installed on the left side of the collecting box.

[0010] Preferably, the right side of the third connecting pipe is connected to a third water pump, and the third water pump is installed on the right side of the hot water tank.

[0011] Compared with the prior art, the beneficial effects of the present invention are:

[0012] By arranging the hot water tank, the air inlet pipe, the air inlet main pipe, the first connecting pipe, the second connecting pipe, the water inlet main pipe, the atomizing nozzle, the water outlet device, and the heat exchange device, the steam and the desalted water can be quickly mixed, thereby reducing the use of desalted water, reducing the harm caused by the recovery of high and low boiler steam, and improving environmental protection efficiency;

[0013] By arranging the first water pump, the plate heat exchanger, the heat exchange box, the circulating water pipe and other devices in coordination, multiple heat replacements can be performed on the mixed water liquid, thereby improving the efficiency of steam heat recovery through this device. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation to the present invention.

[0015] In the attached figure:

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

[0017] Figure 2 This is a schematic diagram of the structure of the water outlet device of the utility model;

[0018] Figure 3 This is a schematic structural diagram of the heat exchange device of the utility model;

[0019] Figure 4 This is a schematic diagram of the structure of the electric heating wire of the utility model.

[0020] In the figure: 100, hot water tank; 101, electric heating wire; 102, protective layer; 110, air inlet pipe; 111, air inlet nozzle; 120, air inlet main pipe; 121, first connecting pipe; 130, second connecting pipe; 140, water inlet main pipe; 150, atomizing nozzle; 200, heat exchange device; 210, heat exchange box; 220, plate heat exchanger; 230, circulating water pipe; 240, first water pump; 300, water outlet device; 310, water outlet pipe; 320, mixing blade; 330, gear; 340, motor; 350, water outlet main pipe; 360, third connecting pipe; 370, third water pump; 400, collecting box; 410, second water pump. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0022] See also Figure 1-4, a boiler steam heat recovery device includes a hot water tank 100, a plurality of air intake pipes 110 are fixedly connected to the upper side of the hot water tank 100, a plurality of air intake nozzles 111 are fixedly connected to the lower side of the air intake pipes 110, an air intake main pipe 120 is fixedly connected to the left side of the air intake main pipe 120, a first connecting pipe 121 is fixedly connected to the left side of the air intake main pipe 120, a second connecting pipe 130 is fixedly connected to the upper side of the hot water tank 100, a water inlet main pipe 140 is fixedly connected to the left side of the second connecting pipe 130, a plurality of atomizing nozzles 150 are evenly fixedly connected to the upper side of the water inlet main pipe 140, a water outlet device 300 is installed on the lower side of the hot water tank 100, and a heat exchange device 200 is connected to the right side of the hot water tank 100. By arranging the hot water tank 100 and the air intake pipes 110, the air intake manifold 120, the first connecting pipe 121, the second connecting pipe 130, the water intake manifold 140, the atomizing nozzle 150, the water outlet device 300, and the heat exchange device 200 can cooperate to quickly mix the steam and the desalted water, thereby reducing the harm caused by the recovery of high and low boiler steam and improving environmental protection efficiency. The heat exchange device 200 includes a heat exchange box 210. The inner wall of the heat exchange box 210 is fixedly connected to multiple groups of plate heat exchangers 220. The right side of the heat exchange box 210 is fixedly connected to a circulating water pipe 230. The lower side of the circulating water pipe 230 is fixedly connected to a first water pump 240. By arranging the first water pump 240, the plate heat exchanger 220, the heat exchange box 210, the circulating water pipe 230 and other devices in combination, the mixed water can be subjected to multiple heat treatments. The heat recovery efficiency of steam is improved by replacing the heat from the steam. The water outlet device 300 includes multiple groups of water outlet pipes 310, which are rotatably connected to the hot water tank 100. Multiple groups of mixing blades 320 are fixedly connected to the outer wall of the water outlet pipe 310. The left side of the multiple groups of water outlet pipes 310 is fixedly connected with a gear 330. The lower side of the hot water tank 100 is fixedly connected with a motor 340. The transmission end of the motor 340 is fixedly connected with the rear water outlet pipe 310. Multiple groups of gears 330 are meshed. Water holes are provided on the outer side of the gear 330. The right side of the multiple groups of water outlet pipes 310 is rotatably connected with a water outlet main pipe 350. The right side of the water outlet main pipe 350 is fixedly connected with a third connecting pipe 360. By setting the water outlet device 300, the device can discharge hot water when the mixed water is discharged. The hot water tank 100 is provided with a plurality of electric heating wires 101 fixedly connected to the inner wall of the hot water tank 100, and a protective layer 102 is fixedly connected to the outer side of the hot water tank 100. The stability of the hot water tank 100 is ensured by setting the protective layer 102 and the electric heating wires 101, so that the gas and liquid in the hot water tank 100 can be effectively mixed, thereby improving the mixing efficiency of the boiler steam and the desalted water. The right side of the heat exchange box 210 is fixedly connected to the collecting box 400, and the left side of the collecting box 400 is fixedly installed with a second water pump 410. By arranging the collecting box 400 and the second water pump 410, the device can collect the liquid after mixing and heat exchange, so that it can be used for other purposes as needed.The right side of the third connecting pipe 360 ​​is fixedly connected to a third water pump 370, which is installed on the right side of the hot water tank 100. By setting the third water pump 370, the speed at which the mixed water is discharged from the hot water tank 100 is controlled.

[0023] Working principle: When the present invention is implemented, the exhaust steam of the boiler enters the air inlet main pipe 120 through the first connecting pipe 121, is diverted through the air inlet main pipe 120, and is sent into the air inlet pipe 110 and discharged through the air inlet nozzle 111. Then, the external desalted water enters the water inlet main pipe 140 from the second connecting pipe 130 and is diverted and discharged from the atomizing nozzle 150. Then, the exhaust steam of the boiler is mixed with the desalted water mist. After the exhaust steam and the desalted water mist are in contact and cooled, they form a liquid state and fall to the lower side of the hot water tank 100. The motor 340 is started, and the rear water outlet pipe 310 is driven to rotate by the motor 340. The rear gear 330 is driven to rotate by the rotation of the rear water outlet pipe 310. The rotation of the rear gear 330 drives the other gears 330 and the water outlet pipe 310. 0 rotates, and then drives the mixing blades 320 to rotate through the water outlet pipe 310. The rotation of the mixing blades 320 causes the desalted water mist and the liquid formed by the boiler exhaust steam to be mixed again, and then enters the water outlet pipe 310 through the through hole of the water outlet pipe 310, and is merged through the water outlet main pipe 350, and then enters the third water pump 370 through the third connecting pipe 360. The speed and time of the water flow are controlled by the third water pump 370. The mixed water flows into the heat exchange box 210, passes through multiple groups of plate heat exchangers 220 for heat recovery and temperature exchange, and then enters the circulating water pipe 230. The moving direction of the water flow is controlled by turning on the first water pump 240 or the second water pump 410, so that the heat-exchanged water flow can be heat-exchanged again or enter the collection box 400 for storage for other uses.

Claims

1. A boiler steam heat recovery device, characterized in that: The invention comprises a hot water tank (100), wherein the upper side of the hot water tank (100) is connected to a plurality of groups of air intake pipes (110), the lower side of the air intake pipes (110) is connected to a plurality of groups of air intake nozzles (111), the left sides of the plurality of groups of air intake pipes (110) are connected to an air intake main pipe (120), the left side of the air intake main pipe (120) is connected to a first connecting pipe (121), the upper side of the hot water tank (100) is connected to a second connecting pipe (130), the left side of the second connecting pipe (130) is connected to a water intake main pipe (140), the upper side of the water intake main pipe (140) is evenly connected to a plurality of groups of atomizing nozzles (150), the lower side of the hot water tank (100) is installed with a water outlet device (300), and the right side of the hot water tank (100) is connected to a heat exchange device (200).

2. The boiler steam heat recovery device according to claim 1, characterized in that: The heat exchange device (200) comprises a heat exchange box (210), the inner wall of the heat exchange box (210) being connected to a plurality of groups of plate heat exchangers (220), the right side of the heat exchange box (210) being connected to a circulating water pipe (230), and the lower side of the circulating water pipe (230) being connected to a first water pump (240).

3. The boiler steam heat recovery device according to claim 1, characterized in that: The water outlet device (300) comprises a plurality of groups of water outlet pipes (310), the outer walls of the water outlet pipes (310) are connected to a plurality of groups of mixing blades (320), the left sides of the plurality of groups of water outlet pipes (310) are connected to gears (330), the lower side of the hot water tank (100) is connected to a motor (340), the transmission end of the motor (340) is connected to the rear water outlet pipe (310), the plurality of groups of gears (330) are meshed, the outer sides of the gears (330) are provided with water holes, the right sides of the plurality of groups of water outlet pipes (310) are connected to a water outlet main pipe (350), and the right side of the water outlet main pipe (350) is connected to a third connecting pipe (360).

4. The boiler steam heat recovery device according to claim 1, characterized in that: The inner wall of the hot water tank (100) is connected to a plurality of groups of electric heating wires (101), and the outer side of the hot water tank (100) is connected to a protective layer (102).

5. The boiler steam heat recovery device according to claim 2, characterized in that: The right side of the heat exchange box (210) is connected to a collection box (400), and the left side of the collection box (400) is installed with a second water pump (410).

6. The boiler steam heat recovery device according to claim 3, characterized in that: The right side of the third connecting pipe (360) is connected to a third water pump (370), and the third water pump (370) is installed on the right side of the hot water tank (100).

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