Mist collecting device of cooling tower

Abstract

The utility model discloses a cooling tower mist collecting device which comprises a lower cooling tower, a dew collector assembly and an auxiliary backflow assembly, a water collecting disc is fixedly installed at the bottom of the lower cooling tower, an induced draft fan is fixedly installed in the middle of the top of an upper cooling tower, and the auxiliary backflow assembly comprises a water outlet driving mechanism, a shaft rod, a driving gear, a driven gear and a water scraping strip. The bottom of the water outlet driving mechanism and the inner wall of the bottom of the water collecting disc are fixedly installed, the bottom of the shaft rod and the top of the water outlet driving mechanism are fixedly installed, the middle of the driving gear and the top end of the shaft rod are fixedly installed, the driven gear is meshed with the driving gear, and the outer surface of the water scraping strip and the middle of the driven gear are fixedly installed. The top of the water scraping strip is attached to the bottom of the dew collector assembly. By arranging the auxiliary backflow assembly and the water outlet driving mechanism to drive the shaft rod to rotate, the driving gear and the driven gear are made to rotate, the water scraping strip is driven to be attached to the bottom of the mist collecting layer plate to rotate, and therefore liquid drops can more easily drip and flow back into the water collecting disc, and the cooling water backflow rate is increased.

Description

Technical Field

[0001] The utility model relates to the technical field of cooling towers, and more specifically to a mist collecting device for a cooling tower. Background Art

[0002] A cooling tower is a device used in industrial and energy production processes. Its main function is to reduce waste heat generated by industrial equipment or power plants through water evaporation. The mist collector of a cooling tower is usually called a mist filter or demister, which is used to prevent the loss of water mist during the operation of the cooling tower, thereby reducing water loss and environmental pollution. However, there are still some problems in its actual use, such as: the existing mist collector of the cooling tower is usually made of multiple layers of plastic or fiberglass. After long-term use, the surface tension of the material may increase due to oxidation and other factors, which makes water droplets tend to gather and remain on the surface of the dew collector when they are formed, making it difficult to drip. This phenomenon not only affects the reflux of cooling water, but may also have a certain impact on the gas circulation in the cooling tower. Utility Model Content

[0003] In order to overcome the above defects of the prior art, the utility model provides a cooling tower mist collecting device to solve the problem that the surface tension of the existing dew collector in the prior art increases, making it difficult for water droplets to drip, thus affecting the reflux of cooling water.

[0004] In order to solve the above technical problems, the utility model provides the following technical solutions: a cooling tower mist collecting device, comprising

[0005] A cooling lower tower, wherein the top of the cooling lower tower is bolted with a cooling upper tower, and a water collecting pan is fixedly installed at the bottom, and an induced draft fan is fixedly installed in the middle of the top of the cooling upper tower;

[0006] The bottom of the fixing rod is fixedly mounted on the inner wall of the bottom of the water collecting tray, and the outer surface of the top is surrounded by a plurality of water distribution pipes.

[0007] A dew collector assembly, wherein the dew collector assembly is arranged at the top of the lower cooling tower;

[0008] An auxiliary reflux assembly, the auxiliary reflux assembly includes a water outlet drive mechanism, a collar, a shaft, a main gear, a slave gear, and a wiper strip, the bottom of the water outlet drive mechanism is fixedly mounted to the inner wall of the bottom of the water collecting tray, one end of the collar is fixedly mounted to the inner surface of the water collecting tray, and the inner surface of the other end is rotatably mounted to the outer surface of the shaft, the bottom of the shaft is fixedly mounted to the top of the water outlet drive mechanism, the middle part of the main gear is fixedly mounted to the top of the shaft, the slave gear is meshed with the main gear, the bottom end of the middle part of the wiper strip is rotatably mounted to the inner surface of the top of the fixed rod, and the outer surface is fixedly mounted to the middle part of the slave gear, and the top of the wiper strip is fitted to the bottom of the dew collector assembly.

[0009] Among them, the dew collector assembly includes a mist collecting plate, a snap block, a support ring, and a pressure ring. The number of the mist collecting plates is several, and the several mist collecting plates are all arranged at the top of the lower cooling tower. The number of the snap blocks is several, and they are arranged around the bottom of the mist collecting plate. The outer surface of the support ring is fixedly installed on the inner wall of the top of the lower cooling tower, and a plurality of fixing strips are arranged inside. The outer surface of the fixing strip is snapped with the middle part of the snap block. The outer surface of the pressure ring is fixedly installed on the inner wall of the bottom of the upper cooling tower, and the bottom is fitted with the top of the mist collecting plate.

[0010] Among them, the water outlet driving mechanism includes a water flow box, a movable column, a turbine, a bevel gear 1, and a bevel gear 2. The bottom of the water flow box is fixedly installed on the inner wall of the bottom of the water collecting tray, one end of the movable column is rotatably installed on the inner wall of the water flow box, and the other end is fixedly installed on the side end of the bevel gear 1. There are two turbines, and the middle parts of the two turbines are fixedly installed on the outer surface of the movable column. The outer surface of one end of the bevel gear is rotatably installed on the side wall of the water flow box. The bevel gear 2 is meshed with the bevel gear 1, and the top end is fixedly installed on the bottom of the shaft.

[0011] Among them, the water outlet drive mechanism also includes a water outlet pipe, a water inlet pipe, and a protective shell. The end of the water outlet pipe is fixedly installed on the side of the water flow box, and the outer surface is fixedly installed on the inner wall of the side of the water collecting tray. The end of the water inlet pipe is fixedly installed on the side of the water flow box away from the water outlet pipe. The protective shell is arranged on the outside of bevel gear one, and the side is fixedly installed on the side of the water flow box close to the water inlet pipe.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] In the above scheme, by setting up an auxiliary reflux component, the staff can connect the outlet pipe to the external water pump, so that the cooling water inside the water collecting tray flows along the water inlet pipe through the water tank and is discharged from the outlet pipe. In this process, the shaft rod will be driven to rotate, so that the main gear connected to the top of the shaft rod rotates, driving the meshing slave gear to rotate, and the wiper strip connected to the middle of the slave gear rotates in conjunction with the bottom of the mist collecting layer plate, so that the rotation and cutting of the wiper strip destroys the tension of the droplets condensed at the bottom of the mist collecting layer plate, so that the droplets can drip back into the water collecting tray more easily, thereby increasing the cooling water reflux rate.

[0014] In the above scheme, by setting up the dew collector assembly, the staff can first dismantle the cooling upper tower fixed to the top of the cooling lower tower by bolts. At this time, the pressure ring fixed to the inner wall of the cooling upper tower and abutting against the top of the mist collecting layer plate is separated from the top surface of the multi-layer overlapping mist collecting layer plates on the top of the cooling lower tower. Then, the staff can rotate the mist collecting layer plate, so that several snap blocks installed at the bottom rotate along the middle part of the support ring, move in line with the surface of the fixed strip, and separate from it, so that the snap blocks can be separated upward from the inside of the support ring, and then the mist collecting layer plate can be quickly installed and disassembled, reducing the difficulty of disassembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 It is a schematic diagram of the cross-sectional structure of the lower cooling tower of the utility model;

[0017] Figure 3 This is a schematic diagram of the structure of the dew collector assembly of the utility model;

[0018] Figure 4 This is a schematic diagram of the auxiliary reflux component structure of the utility model;

[0019] Figure 5 It is a schematic diagram of the structure of the water outlet drive mechanism of the utility model.

[0020] [reference numerals]

[0021] 1. Cooling lower tower; 2. Cooling upper tower; 3. Water collecting tray; 4. Induced draft fan; 5. Fixing rod; 6. Water distribution pipe; 7. Dew collector assembly; 8. Auxiliary reflux assembly; 70. Mist collecting layer plate; 71. Buckle block; 72. Support ring; 73. Fixing strip; 74. Pressing ring; 80. Water outlet drive mechanism; 81. Ring; 82. Shaft; 83. Main gear; 84. Slave gear; 85. Wiper strip; 800. Water tank; 801. Water outlet pipe; 802. Water inlet pipe; 803. Protective shell; 804. Movable column; 805. Turbine; 806. Bevel gear one; 807. Bevel gear two. DETAILED DESCRIPTION

[0022] In order to make the technical problems to be solved, technical solutions and advantages of the present invention more clear, a detailed description will be given below in conjunction with the accompanying drawings and specific embodiments.

[0023] As attached Figure 1 To Attachment Figure 5 The embodiment of the utility model provides a cooling tower mist collecting device, comprising:

[0024] A cooling lower tower 1, a cooling upper tower 2 is bolted to the top of the cooling lower tower 1, a water collecting tray 3 is fixedly installed at the bottom, and an induced draft fan 4 is fixedly installed in the middle of the top of the cooling upper tower 2;

[0025] The fixing rod 5 has a bottom fixed to the inner wall of the bottom of the water collecting tray 3, and a plurality of water distribution pipes 6 are arranged around the outer surface of the top.

[0026] A dew collector assembly 7, which is arranged at the top of the lower cooling tower 1;

[0027] Auxiliary reflux assembly 8, the auxiliary reflux assembly 8 includes a water outlet drive mechanism 80, a collar 81, a shaft 82, a main gear 83, a slave gear 84, and a wiper strip 85. The bottom of the water outlet drive mechanism 80 is fixedly installed with the inner wall of the bottom of the water collecting tray 3, one end of the collar 81 is fixedly installed with the inner surface of the water collecting tray 3, and the inner surface of the other end is rotatably installed with the outer surface of the shaft 82, the bottom of the shaft 82 is fixedly installed with the top of the water outlet drive mechanism 80, the middle part of the main gear 83 is fixedly installed with the top of the shaft 82, the slave gear 84 is meshed with the main gear 83, the bottom end of the middle part of the wiper strip 85 is rotatably installed with the inner surface of the top of the fixed rod 5, and the outer surface is fixedly installed with the middle part of the slave gear 84, and the top of the wiper strip 85 is fitted with the bottom of the dew collector assembly 7;

[0028] By setting the ring 81, one end of the ring 81 is fixedly installed on the inner wall of the water collecting tray 3, and the inner surface of the middle part of the other end is movably connected to the outer surface of the shaft rod 82, so that the shaft rod 82 can rotate along its inner surface, thereby improving the rotation stability of the shaft rod 82.

[0029] Among them, the dew collector assembly 7 includes a mist collecting plate 70, a snap block 71, a support ring 72, and a pressure ring 74. The number of the mist collecting plates 70 is several, and the several mist collecting plates 70 are all arranged at the top of the cooling lower tower 1. The number of the snap blocks 71 is several, and they are arranged around the bottom of the mist collecting plate 70. The outer surface of the support ring 72 is fixedly installed with the inner wall of the top of the cooling lower tower 1, and a plurality of fixing strips 73 are arranged inside. The outer surface of the fixing strip 73 is snapped with the middle part of the snap block 71. The outer surface of the pressure ring 74 is fixedly installed with the inner wall of the bottom of the cooling upper tower 2, and the bottom is in contact with the top of the mist collecting plate 70.

[0030] The water outlet driving mechanism 80 includes a water box 800, a movable column 804, a turbine 805, a bevel gear 1 806, and a bevel gear 2 807. The bottom of the water box 800 is fixedly installed with the inner wall of the bottom of the water collecting tray 3. One end of the movable column 804 is rotatably installed with the inner wall of the water box 800, and the other end is fixedly installed with the side end of the bevel gear 1 806. There are two turbines 805. The middle parts of the two turbines 805 are fixedly installed with the outer surface of the movable column 804. The outer surface of the end of the bevel gear 1 806 is rotatably installed with the side wall of the water box 800. The bevel gear 2 807 is meshed with the bevel gear 1 806, and the top end is fixedly installed with the bottom of the shaft 82.

[0031] By setting up a water outlet drive mechanism 80, after the water flows through the water tank 800, the water flow will drive the turbine 805 to rotate, so that the movable column 804 connected to the middle part of the turbine 805 rotates along the inner wall of the water tank 800, driving the connected bevel gear 1 806 to rotate inside the protective shell 803, driving the meshing bevel gear 2 807 to rotate, thereby driving the shaft 82 to rotate.

[0032] Among them, the water outlet drive mechanism 80 also includes a water outlet pipe 801, a water inlet pipe 802, and a protective shell 803. The end of the water outlet pipe 801 is fixedly installed on the side of the water transfer box 800, and the outer surface is fixedly installed on the inner wall of the side of the water collecting plate 3. The end of the water inlet pipe 802 is fixedly installed on the side of the water transfer box 800 away from the water outlet pipe 801. The protective shell 803 is arranged on the outside of the bevel gear 806, and the side is fixedly installed on the side of the water transfer box 800 close to the water inlet pipe 802.

[0033] The working process of the utility model is as follows:

[0034] For the droplets condensed at the bottom of the mist collecting layer 70, the staff can connect the outlet pipe 801 to the external water pump, so that the cooling water inside the water collecting plate 3 flows along the water inlet pipe 802 through the water tank 800 and is discharged from the outlet pipe 801. In this process, the shaft 82 is driven to rotate, so that the main gear 83 connected to the top of the shaft 82 rotates, driving the meshing slave gear 84 to rotate, and the wiper strip 85 connected to the middle of the slave gear 84 rotates in contact with the bottom of the mist collecting layer 70, so that the tension of the droplets condensed at the bottom of the mist collecting layer 70 is destroyed through the rotation and cutting of the wiper strip 85, so that the droplets can drip back into the water collecting plate 3 more easily, thereby increasing the cooling water reflux rate;

[0035] When the mist collecting layer plate 70 needs to be replaced due to aging, the staff can first dismantle the cooling upper tower 2 fixed to the top of the cooling lower tower 1 by bolts. At this time, the pressure ring 74 fixed to the inner wall of the cooling upper tower 2 and abutting against the top of the mist collecting layer plate 70 is separated from the top surface of the multi-layer overlapping mist collecting layer plates 70 at the top of the cooling lower tower 1. Then, the staff can rotate the mist collecting layer plate 70 so that the several snap blocks 71 installed at the bottom rotate along the middle part of the support ring 72, move along the surface of the fixing strip 73, and separate from it, so that the snap blocks 71 can be separated upward from the inside of the support ring 72, and then the mist collecting layer plate 70 can be quickly installed and disassembled, reducing the difficulty of disassembly.

[0036] Finally, a few points should be explained: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, which may refer to mechanical connection or electrical connection, or internal communication between two components, or direct connection. "upper", "lower", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may change;

[0037] Secondly: In the drawings of the embodiments disclosed in the present utility model, only the structures related to the embodiments disclosed in the present utility model are involved, and other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of the present utility model can be combined with each other;

[0038] 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. A cooling tower mist collecting device, characterized in that: include A cooling lower tower (1), wherein the top of the cooling lower tower (1) is bolted with a cooling upper tower (2), and a water collecting tray (3) is fixedly installed at the bottom, and an induced draft fan (4) is fixedly installed in the middle of the top of the cooling upper tower (2); A fixing rod (5), the bottom of which is fixedly mounted on the inner wall of the bottom of the water collecting tray (3), and the outer surface of the top is surrounded by a plurality of water distribution pipes (6); A dew collector assembly (7), wherein the dew collector assembly (7) is arranged at the top of the lower cooling tower (1); The auxiliary reflux assembly (8) comprises a water outlet drive mechanism (80), a collar (81), a shaft (82), a main gear (83), a slave gear (84), and a wiper strip (85). The bottom of the water outlet drive mechanism (80) is fixedly mounted on the inner wall of the bottom of the water collecting tray (3). One end of the collar (81) is fixedly mounted on the inner surface of the water collecting tray (3), and the inner surface of the other end is rotatably mounted on the outer surface of the shaft (82). The bottom of the shaft (82) is fixedly mounted on the top of the water outlet drive mechanism (80), the middle of the main gear (83) is fixedly mounted on the top of the shaft (82), the slave gear (84) and the main gear (83) are meshed with each other, the bottom end of the middle of the wiper strip (85) is rotatably mounted on the inner surface of the top of the fixed rod (5), and the outer surface is fixedly mounted on the middle of the slave gear (84), and the top of the wiper strip (85) is in contact with the bottom of the dew collector assembly (7).

2. A cooling tower mist collecting device according to claim 1, characterized in that: The dew collector assembly (7) comprises a mist collecting plate (70), a snap block (71), a support ring (72), and a pressure ring (74). The number of the mist collecting plates (70) is several, and the several mist collecting plates (70) are all arranged at the top of the lower cooling tower (1). The number of the snap blocks (71) is several, and they are arranged around the bottom of the mist collecting plate (70). The outer surface of the support ring (72) is fixedly mounted on the inner wall of the top of the lower cooling tower (1), and a plurality of fixing strips (73) are arranged inside. The outer surface of the fixing strip (73) is snap-fitted with the middle part of the snap block (71). The outer surface of the pressure ring (74) is fixedly mounted on the inner wall of the bottom of the upper cooling tower (2), and the bottom is in contact with the top of the mist collecting plate (70).

3. A cooling tower mist collecting device according to claim 1, characterized in that: The water outlet driving mechanism (80) comprises a water box (800), a movable column (804), a turbine (805), a bevel gear 1 (806), and a bevel gear 2 (807). The bottom of the water box (800) is fixedly mounted on the inner wall of the bottom of the water collecting tray (3). One end of the movable column (804) is rotatably mounted on the inner wall of the water box (800), and the other end is fixedly mounted on the side end of the bevel gear 1 (806). There are two turbines (805). The middle parts of the two turbines (805) are fixedly mounted on the outer surface of the movable column (804). The outer surface of the end of the bevel gear 1 (806) is rotatably mounted on the side wall of the water box (800). The bevel gear 2 (807) is meshed with the bevel gear 1 (806), and the top end is fixedly mounted on the bottom of the shaft (82).

4. A cooling tower mist collecting device according to claim 3, characterized in that: The water outlet drive mechanism (80) further comprises a water outlet pipe (801), a water inlet pipe (802), and a protective shell (803); the end of the water outlet pipe (801) is fixedly mounted on the side of the water tank (800), and the outer surface is fixedly mounted on the inner wall of the side of the water collecting tray (3); the end of the water inlet pipe (802) is fixedly mounted on the side of the water tank (800) away from the water outlet pipe (801); the protective shell (803) is arranged on the outside of the bevel gear 1 (806), and the side is fixedly mounted on the side of the water tank (800) close to the water inlet pipe (802).

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