Automatic air volume regulating counterflow glass steel cooling tower

Abstract

The utility model discloses a kind of air volume automatic regulation's counterflow type glass steel cooling tower, belong to cooling tower technical field, including shell and air outlet mechanism, shell is equipped with spraying mechanism, filler layer, shell side wall is equipped with air inlet, air volume adjusting mechanism is equipped in air inlet, control mechanism is equipped above air inlet, air volume adjusting mechanism includes blade, and movable rod;Control mechanism includes reciprocating screw rod, conical wheel, electric push rod and drive mechanism;Movable rod is equipped with pressure rod;Air inlet is equipped with dust cover, cleaning assembly is equipped on reciprocating screw rod, shell is equipped with water outlet pipe and PLC controller, temperature sensor is equipped in water outlet pipe.The utility model can adjust the air intake of air inlet according to outlet water temperature, and when cleaning dust cover, the air intake of air inlet can be adjusted to minimum, avoid dust from inlet into cooling tower.

Description

Technical Field

[0001] This utility model relates to the field of cooling tower technology, specifically to a counter-flow fiberglass cooling tower with automatic airflow adjustment. Background Technology

[0002] Counterflow cooling towers are highly efficient heat exchange devices. They work by evenly distributing hot water from the top of the tower through a water distribution system, while air is drawn in from the bottom through an air inlet and flows upwards. Because this counterflow method maximizes the temperature difference and improves heat exchange efficiency, it is widely used in many industrial cooling and air conditioning systems.

[0003] However, the heat that a cooling tower needs to handle is not constant; it changes with the production process, ambient temperature, and equipment operating status. Therefore, during the operation of the cooling tower, it is necessary to adjust the air intake volume at the air inlet in a timely manner according to the heat. Most existing cooling towers use frequency conversion of the fan to control the air intake volume, but frequent changes in the fan operating frequency will generate noise, accelerate equipment wear and tear, and lead to increased maintenance costs. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides a counter-flow fiberglass cooling tower with automatic air volume adjustment.

[0005] The technical solution of this utility model is: a counter-flow fiberglass cooling tower with automatic airflow adjustment, comprising a shell and an air outlet mechanism disposed on the top surface of the shell. Inside the shell, from top to bottom, are arranged a spray mechanism and a packing layer. An air inlet is provided on the lower part of a set of opposite side walls of the shell. An airflow adjustment mechanism is provided in each of the two air inlets. A control mechanism is provided above the air inlets. The airflow adjustment mechanism includes multiple blades laterally rotatably disposed within the air inlets to control the airflow by rotation angle, and a movable rod disposed at one end of the blades to drive the blades to rotate by vertical movement. The control mechanism... The mechanism includes a reciprocating lead screw positioned above the air inlet and laterally sliding and rotatably connected to the housing; a conical wheel fixedly sleeved on the reciprocating lead screw; an electric push rod positioned at one end of the reciprocating lead screw for driving its lateral sliding; and a drive mechanism positioned at the other end of the reciprocating lead screw for slidingly engaging with the reciprocating lead screw to drive its rotation. A pressure rod is provided on the movable rod, cooperating with the conical wheel to move laterally and push the movable rod up and down. A dust cover is provided at the air inlet, and a cleaning assembly is provided on the reciprocating lead screw for cleaning the dust cover by rotating it. A water outlet pipe is provided at the lower end of the side wall of the housing.

[0006] Explanation: The above-mentioned cooling tower uses an electric push rod to control the reciprocating screw to slide left and right, thereby driving the conical wheel to move left and right. The conical wheel, through the pressure rod, drives the movable rod to rise and fall, causing the blades to rotate and adjusting the air intake volume at the air inlet. When it is necessary to clean the dust cover, the electric push rod controls the reciprocating screw to slide, causing the blades to rotate and adjusting the air intake volume at the air inlet to the minimum. At this time, the drive mechanism can drive the reciprocating screw to rotate, thereby driving the cleaning component to clean the dust cover, preventing dust from entering the cooling tower from the air inlet during cleaning.

[0007] Furthermore, a PLC controller is provided on the housing, and a temperature sensor is provided inside the water outlet pipe. The electric push rod and the temperature sensor are both electrically connected to the PLC controller.

[0008] Note: The temperature sensor can detect the water temperature in the outlet pipe, allowing the PLC controller to adjust the air intake in a timely manner based on the water temperature, thus improving the ease of use of the cooling tower.

[0009] Furthermore, the cleaning assembly includes a movable block threaded onto a reciprocating lead screw, and a brush disposed at the lower end of the movable block, the movable block being slidably connected to the housing.

[0010] Note: The above cleaning component uses a reciprocating screw to move a movable block left and right, which in turn drives a brush to clean the dust accumulated on the dust cover.

[0011] Furthermore, the movable rod is a rack or friction bar that is vertically slidably mounted on the housing, and one end of the blade passes through a groove provided on the side wall of the housing and is provided with a gear for cooperating with the rack or a friction wheel for cooperating with the friction bar.

[0012] Explanation: By using a rack and pinion or a friction bar and a friction wheel, the up and down movement of the movable rod can drive the blade to rotate and adjust the blade angle. This transmission method has good stability and is easy to maintain.

[0013] Furthermore, the water outlet pipe is disposed on the side wall of the housing between the two control mechanisms. The drive mechanism includes a water turbine chamber communicating with the water outlet pipe and a transmission shaft that is laterally rotatably disposed on the housing. A water turbine shaft is rotatably disposed inside the water turbine chamber, and a water turbine is fixedly sleeved on the water turbine shaft. Both ends of the transmission shaft are provided with first bevel gears. The other end of the reciprocating screw is provided with a second bevel gear that is slidably engaged with the first bevel gear for transmission. A worm gear is sleeved on the transmission shaft. The upper end of the water turbine shaft passes through the water turbine chamber and is provided with a worm that cooperates with the worm gear for transmission.

[0014] Explanation: The above-mentioned drive mechanism drives the water wheel to rotate through the water outlet pipe. The water wheel drives the transmission shaft to rotate through the worm and worm wheel. When the reciprocating screw slides to the point where the second bevel gear meshes with the first bevel gear, the transmission shaft can drive the reciprocating screw to rotate in order to clean the dust cover.

[0015] The beneficial effects of this utility model are: This utility model cooling tower can adjust the air intake volume of the air inlet in a timely manner according to the outlet water temperature, so as to avoid the cooling effect from insufficient air intake. When cleaning the dust cover, the air intake volume of the air inlet can be adjusted to the minimum, so that the reciprocating screw rotates to drive the cleaning component to clean the dust cover, thus preventing dust from entering the cooling tower from the air inlet during cleaning. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of Embodiment 1 of this utility model; Figure 2 This is a vertical sectional view of Embodiment 1 of this utility model; Figure 3 yes Figure 2 Enlarged view of point B; Figure 4 This is a schematic diagram of the air inlet structure of Embodiment 1 of this utility model; Figure 5 This is a schematic diagram of the blade structure of Embodiment 1 of this utility model; Figure 6 This is a schematic diagram of the drive mechanism structure of Embodiment 2 of this utility model; Figure 7 This is a schematic diagram of the internal structure of the turbine chamber in Embodiment 2 of this utility model; Among them, 1-shell, 11-spraying mechanism, 12-packing layer, 13-water outlet pipe, 14-air inlet, 15-blade, 16-moving rod, 17-pressure rod, 18-drive shaft, 181-first bevel gear, 182-worm gear, 2-dust cover, 21-reciprocating screw, 22-conical wheel, 23-moving block, 24-brush, 25-connecting plate, 26-electric push rod, 27-second bevel gear, 3-air outlet mechanism, 31-air outlet pipe, 32-fan, 4-water turbine chamber, 41-water turbine shaft, 42-water turbine, 43-worm gear. Detailed Implementation

[0017] The present invention will now be described in more detail with reference to specific embodiments, so as to better demonstrate the advantages of the present invention.

[0018] Example 1: As Figure 1 As shown, a counter-flow fiberglass cooling tower with automatic airflow adjustment includes a shell 1 and an air outlet mechanism 3 disposed on the top surface of the shell 1. The air outlet mechanism 3 includes an air outlet pipe 31 disposed on the top surface of the shell 1 and communicating with the shell 1, and a fan 32 fixedly disposed within the air outlet pipe 31. Figure 2As shown, the shell 1 is provided with a spraying mechanism 11 and a packing layer 12 from top to bottom. The packing layer 12 adopts existing technology products. The spraying mechanism 11 includes a water inlet pipe arranged horizontally in the shell 1 and twelve branch pipes arranged on the side wall of the water inlet pipe. Several spray nozzles are provided on the side wall of the branch pipes. The right end of the water inlet pipe passes through the shell 1. Air inlets 14 are provided on the lower part of the left and right side walls of the housing 1. Each air inlet 14 is equipped with an airflow regulating mechanism, and a control mechanism is located above the air inlets 14. Figure 3 , Figure 4 As shown, the air volume regulating mechanism includes six blades 15 that are laterally rotatably disposed in the air inlet 14 to control the air volume by means of rotation angle, and a movable rod 16 disposed at the right end of the blades 15 and driven to rotate the blades 15 by means of up and down movement. The control mechanism includes a reciprocating screw 21 disposed above the air inlet 14 and slid laterally and rotatably connected to the housing 1, a conical wheel 22 fixedly sleeved on the reciprocating screw 21, an electric push rod 26 disposed at the left end of the reciprocating screw 21 and used to drive its lateral sliding, and a drive mechanism disposed at the right end of the reciprocating screw 21 and used to slide and engage with the reciprocating screw 21 to drive its rotation. The reciprocating screw 21 has connecting plates 25 rotatably sleeved at both ends of the left and right. Both connecting plates 25 are slidably connected to the transverse sliding grooves provided on the housing 1. The electric push rod 26 is fixedly connected to the connecting plate 25 at the left end of the reciprocating screw 21. The movable rod 16 is provided with a pressure rod 17 that cooperates with the transverse movement of the conical wheel 22 to push the movable rod 16 to move up and down. The drive mechanism is a motor fixedly mounted on the housing 1 at the right end of the reciprocating lead screw 21. The output shaft of the motor is connected to the reciprocating lead screw 21 via a spline. The motor is a product of existing technology. The movable rod 16 is a rack that is vertically slidably mounted on the housing 1. The movable rod 16 is slidably connected to a vertical groove provided on the housing 1, such as... Figure 5 As shown, the right end of the blade 15 passes through a groove provided on the side wall of the housing 1 and is provided with a gear for engaging with the rack, and the lower end of the movable rod 16 is connected to the housing 1 by a spring; A dust cover 2 is provided at the air inlet 14. A cleaning component is provided on the reciprocating screw 21 to clean the dust cover 2 by rotating it. The cleaning component includes a movable block 23 threaded on the reciprocating screw 21 and a brush 24 set at the lower end of the movable block 23. The movable block 23 is slidably connected to a transverse sliding groove provided on the housing 1. A water outlet pipe 13 is provided at the lower end of the side wall of the housing 1. A PLC controller is provided on the housing 1. A temperature sensor is provided in the water outlet pipe 13. The electric push rod 26 and the temperature sensor are electrically connected to the PLC controller to increase the water temperature in the water outlet pipe 13. The PLC controller can control the electric push rod 26 to shorten to increase the air intake. The temperature sensor and the PLC controller are both existing technology products. The upper end of the housing 1 is truncated pyramidal in shape.

[0019] The working principle of the cooling tower is as follows: hot water is sprayed into the shell 1 through the spray mechanism 11. When the fan 32 is running, the airflow enters from the air inlet 14 and exits from the air outlet 31. The hot water is in full contact with the airflow in the packing layer 12. The airflow carries away the heat of the hot water, and after the hot water is cooled, it falls to the bottom of the shell 1 and is then discharged from the water outlet 13. The temperature sensor in the water outlet 13 can detect the outlet water temperature in real time. When the outlet water temperature rises, the PLC controller can control the electric push rod 26 to shorten, causing the reciprocating screw 21 to move to the left. At this time, the conical wheel 22 will press down on the pressure rod 17, causing the movable... The rod 17 moves downward to adjust the rotation angle of the blade 15, increasing the air intake of the air inlet 14. When the dust cover 2 needs to be cleaned, the PLC controller can control the electric push rod 26 to extend, causing the reciprocating screw 21 to move to the right. The movable rod 17 will move to the uppermost position under the action of the spring, causing the blade 15 to rotate and close the air inlet 14. At this time, the motor can be started, causing the motor to drive the reciprocating screw 21 to rotate, causing the reciprocating screw 21 to drive the movable block 23 to slide back and forth. The movable block 23 drives the brush to clean the dust cover 2 and prevent dust from entering the cooling tower from the air inlet 14.

[0020] Example 2: Figure 6 As shown, this embodiment is basically the same as embodiment 1, except that the water outlet pipe 13 is installed on the rear side wall of the housing 1, and the driving mechanism includes a water turbine chamber 4 connected to the water outlet pipe 13, and a transmission shaft 18 that is laterally rotatably installed on the housing 1; the transmission shaft 18 is connected to the housing 1 through fixed plates rotatably sleeved at both ends, as shown. Figure 7 As shown, a water turbine shaft 41 is rotatably installed inside the water turbine chamber 4, and a water turbine 42 is fixedly sleeved on the water turbine shaft 41. The left and right ends of the transmission shaft 18 are provided with first bevel gears 181. The right end of the reciprocating screw 21 is provided with a second bevel gear 27 that is slidably engaged with the first bevel gear 181 for transmission. A worm gear 182 is sleeved on the transmission shaft 18. The upper end of the water turbine shaft 41 passes through the water turbine chamber 4 and is provided with a worm 43 that cooperates with the worm gear 182 for transmission.

[0021] The working principle of the above-mentioned drive mechanism is as follows: the water flow when the water outlet pipe 13 drains can drive the water wheel 42 to rotate, so that the water wheel shaft 41 drives the transmission shaft 18 to rotate through the worm 43 and the worm wheel 182. When the reciprocating screw 21 moves to the rightmost end, the first bevel gear 181 will mesh with the second bevel gear 27. At this time, the transmission shaft 18 can drive the reciprocating screw 21 to rotate through the first bevel gear 181 and the second bevel gear 27, so that the movable block 23 drives the brush 24 to move back and forth to clean the dust cover 2.

[0022] Example 3: This example is basically the same as Example 1, except that the movable rod 16 is a friction strip, and one end of the blade 15 passes through a groove provided on the side wall of the housing 1 and is provided with a friction wheel for cooperating with the friction strip.

Claims

1. A counter-flow fiberglass cooling tower with automatic airflow adjustment, characterized in that, The device includes a housing (1) and an air outlet mechanism (3) disposed on the top surface of the housing (1). Inside the housing (1), from top to bottom, there are a spray mechanism (11) and a packing layer (12). An air inlet (14) is provided on the lower part of a set of opposite side walls of the housing (1). An air volume regulating mechanism is provided in both air inlets (14). A control mechanism is provided above the air inlets (14). The air volume regulating mechanism includes multiple blades (15) that are laterally rotatably disposed in the air inlets (14) to control the air volume by means of rotation angle, and a movable rod (16) disposed at one end of the blades (15) to drive the blades (15) to rotate by means of up and down movement. The control mechanism includes a rod disposed above the air inlets (14) and horizontally opposite to the housing (1). The reciprocating screw (21) is slidably and rotatably connected to the reciprocating screw (21), a conical wheel (22) is fixedly sleeved on the reciprocating screw (21), an electric push rod (26) is provided at one end of the reciprocating screw (21) for driving its lateral sliding, and a drive mechanism is provided at the other end of the reciprocating screw (21) for slidingly engaging with the reciprocating screw (21) to drive its rotation; the movable rod (16) is provided with a pressure rod (17) that cooperates with the conical wheel (22) to push the movable rod (16) to move up and down; a dust cover (2) is provided at the air inlet (14), and a cleaning component is provided on the reciprocating screw (21) for cleaning the dust cover (2) by rotating it; a water outlet pipe (13) is provided at the lower end of the side wall of the housing (1).

2. The counter-flow fiberglass cooling tower with automatic airflow adjustment according to claim 1, characterized in that, The housing (1) is equipped with a PLC controller, and the water outlet pipe (13) is equipped with a temperature sensor. The electric push rod (26) and the temperature sensor are both electrically connected to the PLC controller.

3. The counter-flow fiberglass cooling tower with automatic airflow adjustment according to claim 1, characterized in that, The cleaning assembly includes a movable block (23) threaded onto a reciprocating screw (21) and a brush (24) disposed at the lower end of the movable block (23), the movable block (23) being slidably connected to the housing (1).

4. A counter-flow fiberglass cooling tower with automatic airflow adjustment according to claim 1, characterized in that, The movable rod (16) is a rack or friction bar that is vertically slidably mounted on the housing (1). One end of the blade (15) passes through a groove provided on the side wall of the housing (1) and is provided with a gear for cooperating with the rack or a friction wheel for cooperating with the friction bar. The lower end of the movable rod (16) is connected to the housing (1) by a spring.

5. A counter-flow fiberglass cooling tower with automatic airflow adjustment according to claim 1, characterized in that, The water outlet pipe (13) is located on the side wall of the housing (1) between the two control mechanisms. The drive mechanism includes a water turbine chamber (4) connected to the water outlet pipe (13) and a transmission shaft (18) rotatably mounted on the housing (1). A water turbine shaft (41) is rotatably mounted inside the water turbine chamber (4). A water turbine (42) is fixedly mounted on the water turbine shaft (41). Both ends of the transmission shaft (18) are provided with first bevel gears (181). The other end of the reciprocating screw (21) is provided with a second bevel gear (27) that is slidably engaged with the first bevel gear (181) for transmission. A worm gear (182) is mounted on the transmission shaft (18). The upper end of the water turbine shaft (41) passes through the water turbine chamber (4) and is provided with a worm (43) that cooperates with the worm gear (182) for transmission.

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