Water mist recovery device for peak wet cooling fan of thermal power plant

Abstract

The utility model discloses a thermal power plant peak wet cooling fan water mist recovery unit belongs to wet cooling fan technical field, including the recovery pipe of connecting on wet cooling fan still includes: the mist catching metal wire mesh is fixedly connected in the recovery pipe, a plurality of exhaust holes are evenly set up on the lateral wall of recovery pipe, the collecting jar is detachably connected in the bottom of recovery pipe, the converging plate is fixedly connected in the recovery pipe, and the converging plate is located the mist catching metal wire mesh's just below, and recovery pipe is connected with the back -blow component, and the back -blow component is used for the blow and hit mist catching metal wire mesh, through the combination design of mist catching metal wire mesh, arc converging plate and horn pipe, the water mist recovery rate is effectively improved under the peak condition, and then reduces water resource consumption, and simultaneously through setting back -blow component in the recovery pipe, after mist catching metal wire mesh uses a period of time, the staggered blow -off pipe of back -blow component can clean the screen impurity quickly, avoids the block under high water mist concentration, and improves the mist catching effect of mist catching metal wire mesh.

Description

Technical Field

[0001] This utility model relates to the field of wet cooling fan technology, and in particular to a water mist recovery device for peak wet cooling fans in thermal power plants. Background Technology

[0002] Under peak load conditions in thermal power plants, wet cooling fans need to operate with high air volume and high spray volume, which may cause a large amount of fine water mist to escape from the air outlet with the airflow.

[0003] The existing built-in baffles of the humidifier can only intercept large water mist particles, while the escape rate of fine water mist of 10-50μm exceeds 40%, resulting in the waste of several tons of water resources per day. At the same time, the escaped water mist contains salt and dust, which can easily corrode surrounding equipment and increase the humidity of the factory environment.

[0004] Traditional water mist recovery devices are mostly fixed structures, which have problems such as difficult dust removal, cumbersome disassembly of collection tanks, and low recovery efficiency under high wind speeds, making them difficult to adapt to the high-intensity and high-frequency maintenance requirements of peak operating conditions. Utility Model Content

[0005] The purpose of this utility model is to solve the problems mentioned in the background art and to propose a water mist recovery device for peak wet cooling fans in thermal power plants.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A water mist recovery device for peak-load wet cooling fans in thermal power plants, including a recovery pipe connected to the wet cooling fan, and further comprising:

[0008] A mist-catching metal wire mesh is fixedly connected in the recovery pipe;

[0009] Multiple vents are evenly distributed on the side wall of the recovery pipe;

[0010] The collection container is detachably connected to the bottom of the recycling pipe;

[0011] A flow-gathering plate is fixedly connected in the recovery pipe, and the flow-gathering plate is located directly below the mist-catching metal wire mesh;

[0012] The recovery pipe is connected to a backflush assembly, which is used to blow against the mist-catching metal wire mesh.

[0013] Preferably, the backflush assembly includes a booster pump and a backflush pipe. The booster pump is fixedly connected to the side wall of the humidifier, and the backflush pipe is fixedly connected to the outlet end of the booster pump. The backflush pipe is located below the mist-collecting metal wire mesh.

[0014] Furthermore, a plurality of first blowing pipes and a plurality of second blowing pipes are fixedly connected to the backflush pipe, the plurality of first blowing pipes and second blowing pipes are arranged alternately, and the air outlets of the first blowing pipes and the second blowing pipes are inclined toward the mist-catching metal wire mesh.

[0015] Preferably, an installation rod is fixedly connected to the collection tank, and an installation hole is opened at the bottom of the recycling pipe, with the installation rod matching the installation hole.

[0016] Furthermore, a strong magnet is fixedly connected in the mounting hole, and the mounting rod is an iron rod that is attracted to the strong magnet.

[0017] Preferably, a horn tube is fixedly connected to the top of the collection tank, and the diameter of the horn tube is larger than the bottom diameter of the flow-gathering plate.

[0018] Compared with the prior art, this utility model provides a water mist recovery device for peak-load wet cooling fans in thermal power plants, which has the following beneficial effects:

[0019] 1. This utility model effectively improves the water mist recovery rate under peak operating conditions by combining the design of mist-catching metal wire mesh, arc-shaped flow-gathering plate and horn tube, thereby reducing water consumption. At the same time, through the back-blowing component installed in the recovery pipe, after the mist-catching metal wire mesh has been used for a period of time, the staggered blowing pipes of the back-blowing component can quickly clean the wire mesh of impurities, avoid clogging under high water mist concentration, and improve the mist-catching effect of the mist-catching metal wire mesh.

[0020] 2. The collection tank in this utility model is fixed by a strong magnet and a mounting rod to prevent it from falling off under high wind speeds; at the same time, the structure of the sealing baffle and sealing gasket on the side wall of the recovery pipe ensures the sealing of the recovery pipe and prevents the leakage of mist droplets. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the water mist recovery device for peak-load wet cooling fans in thermal power plants proposed in this utility model;

[0022] Figure 2 This is a cross-sectional view of the recovery pipe in the water mist recovery device for the peak wet cooling fan in a thermal power plant proposed in this utility model;

[0023] Figure 3 The water mist recovery device for peak-load wet cooling fans in thermal power plants proposed in this utility model Figure 2 Enlarged view of section A in the middle;

[0024] Figure 4 This is a schematic diagram of the recovery pipe and collection tank in the water mist recovery device for peak wet cooling fans in thermal power plants proposed in this utility model.

[0025] In the diagram: 1. Wet air cooler; 101. Cleaning tank; 102. Connecting plate; 103. Exhaust port; 104. Mounting hole; 1041. Strong magnet; 2. Recovery pipe; 3. Collection tank; 301. Mounting rod; 302. Horn pipe; 4. Booster air pump; 401. Backflush pipe; 4011. First blow pipe; 4012. Second blow pipe; 5. Sealing baffle; 501. Sealing gasket; 502. Handle; 6. Condensing plate; 7. Fog-catching metal wire mesh. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0027] Example 1:

[0028] Reference Figures 1-4 A water mist recovery device for a peak-load wet cooling fan in a thermal power plant includes a recovery pipe 2 connected to a wet cooling fan 1, a connecting plate 102 fixedly connected to the recovery pipe 2 for connecting to the outlet pipe on the wet cooling fan 1, and further includes:

[0029] The fog-catching metal wire mesh 7 is fixedly connected in the recovery pipe 2;

[0030] Multiple vent holes 103 are evenly distributed on the side wall of the recovery pipe 2;

[0031] Collection tank 3 is detachably connected to the bottom of recycling pipe 2;

[0032] The flow-concentrating plate 6 is fixedly connected in the recovery pipe 2, and the flow-concentrating plate 6 is located directly below the mist-collecting metal wire mesh 7;

[0033] A backflush assembly is connected to the recovery pipe 2, which is used to blow against the fog-catching metal wire mesh 7.

[0034] The backflush assembly includes a booster air pump 4 and a backflush pipe 401. The booster air pump 4 is fixedly connected to the side wall of the humidifier 1, and the backflush pipe 401 is fixedly connected to the air outlet of the booster air pump 4. The backflush pipe 401 is located below the mist-catching metal wire mesh 7.

[0035] Multiple first blowing pipes 4011 and multiple second blowing pipes 4012 are fixedly connected to the backflush pipe 401. The multiple first blowing pipes 4011 and second blowing pipes 4012 are arranged alternately, and the air outlets of the first blowing pipes 4011 and the second blowing pipes 4012 are all inclined toward the mist-catching metal wire mesh 7.

[0036] An installation rod 301 is fixedly connected to the collection tank 3, and an installation hole 104 is opened at the bottom of the recycling pipe 2. The installation rod 301 matches the installation hole 104.

[0037] A strong magnet 1041 is fixedly connected in the mounting hole 104. The mounting rod 301 is an iron rod, and the mounting rod 301 is attracted to the strong magnet 1041.

[0038] Reference Figure 3 When the collection tank 3 is installed, the iron mounting rod 301 is attracted by the strong magnet 1041 in the mounting hole 104, which can ensure the installation stability of the mounting rod 301 in the mounting hole 104, and thus ensure that the collection tank 3 will not fall off during the collection process when collecting condensed water droplets.

[0039] In practice, the collection tank 3 can be made of transparent tempered glass, which makes it easy for staff to observe the collection status of the collection tank 3. When the water in the collection tank 3 is full, the staff can quickly remove the collection tank 3 and replace it with a new collection tank 3 for collection and treatment.

[0040] Reference Figure 3 In practice, the concentrating plate 6 can be an arc-shaped plate to facilitate the rapid falling of the collected water droplets. The top of the collection tank 3 is fixedly connected to a horn tube 302, the diameter of which is larger than the bottom diameter of the concentrating plate 6.

[0041] By installing the horn tube 302 at the top of the collection tank 3, it is possible to effectively ensure that the water droplets falling through the concentrator plate 6 can fall stably into the collection tank 3.

[0042] Reference Figure 3 , Figure 4 In practice, a cleaning groove 101 is also provided on the side wall of the recovery pipe 2 to clean the impurities that are blown back onto the mist-collecting metal wire mesh 7.

[0043] It should be noted that a sealing baffle 5 is also connected in the cleaning trough 101 to seal the cleaning trough 101 on the recovery pipe 2, and a sealing gasket 501 is fixedly connected to the sealing baffle 5. When the sealing baffle 5 is inserted into the cleaning trough 101, the sealing gasket 501 abuts against the inner wall of the cleaning trough 101.

[0044] It should also be noted that a handle 502 is fixedly connected to the sealing baffle 5, which facilitates the disassembly and installation of the sealing baffle 5 by the staff.

[0045] Reference Figures 1-4 In actual use, the humidifier 1 operates under peak conditions, and the misty airflow enters the recovery pipe 2. When the airflow passes through the mist-catching metal wire mesh 7, the water mist is intercepted due to inertial collision and gathers to form water droplets. The water droplets slide down along the arc-shaped flow-gathering plate 6 and flow into the collection tank 3 through the trumpet tube 302 at the top of the collection tank 3. The purified air is discharged through the exhaust hole 103 on the side wall of the recovery pipe 2.

[0046] After a period of use, the booster air pump 4 can be started, and the first blow pipe 4011 and the second blow pipe 4012 of the backflush pipe 401 will blow air onto the wire mesh alternately to shake off the attached impurities.

[0047] It should be noted that the booster pump 4 can be started and stopped periodically by staff.

[0048] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A water mist recovery device for a peak-load wet cooling fan in a thermal power plant, comprising a recovery pipe (2) connected to the wet cooling fan (1), characterized in that, Also includes: A fog-catching metal wire mesh (7) is fixedly connected in the recovery pipe (2); Multiple vent holes (103) are evenly distributed on the side wall of the recovery pipe (2); The collection tank (3) is detachably connected to the bottom of the recycling pipe (2); A flow-gathering plate (6) is fixedly connected in the recovery pipe (2), and the flow-gathering plate (6) is located directly below the mist-catching metal wire mesh (7); The recovery pipe (2) is connected to a backflush assembly, which is used to blow the fog-catching metal wire mesh (7).

2. The water mist recovery device for peak-load wet cooling fans in thermal power plants according to claim 1, characterized in that, The backflush assembly includes a booster air pump (4) and a backflush pipe (401). The booster air pump (4) is fixedly connected to the side wall of the humidifier (1), and the backflush pipe (401) is fixedly connected to the air outlet of the booster air pump (4). The backflush pipe (401) is located below the mist-catching metal wire mesh (7).

3. The water mist recovery device for peak-load wet cooling fans in thermal power plants according to claim 2, characterized in that, The backflush pipe (401) is fixedly connected with a plurality of first blow pipes (4011) and a plurality of second blow pipes (4012). The plurality of first blow pipes (4011) and second blow pipes (4012) are arranged alternately, and the air outlets of the first blow pipes (4011) and the second blow pipes (4012) are inclined toward the mist-catching metal wire mesh (7).

4. The water mist recovery device for peak-load wet cooling fans in thermal power plants according to claim 1, characterized in that, An installation rod (301) is fixedly connected to the collection tank (3), and an installation hole (104) is opened at the bottom of the recycling pipe (2). The installation rod (301) matches the installation hole (104).

5. The water mist recovery device for peak-load wet cooling fans in thermal power plants according to claim 4, characterized in that, A strong magnet (1041) is fixedly connected in the mounting hole (104), and the mounting rod (301) is an iron rod. The mounting rod (301) is attracted to the strong magnet (1041).

6. The water mist recovery device for peak-load wet cooling fans in thermal power plants according to claim 1, characterized in that, The top of the collection tank (3) is fixedly connected to a horn tube (302), the diameter of which is larger than the bottom diameter of the flow-gathering plate (6).

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