Induced ventilation type cooling tower

Abstract

The utility model discloses an induced ventilation type cooling tower, which relates to the technical field of cooling towers, and comprises a tower box, a dust filtering mechanism is arranged at the top of the tower box and is used for filtering dust of airflow entering the inner wall of the tower box, and the dust filtering mechanism comprises a dust filtering assembly and a dust collecting assembly, the winding assembly is arranged at the upper part of the tower box and is used for winding the dust filter screen; the elastic stretching assembly is arranged between the base plate and the inner wall of the tower box and used for conducting elastic stretching resetting on the base plate, external cold air enters the tower box and is filtered through the dust filtering net, a rotating rod and a winding roller can be driven to rotate by starting a stepping motor, the winding roller winds the dust filtering net, and the dust filtering net is wound through the winding roller; dust attached to the dust filtering net can be correspondingly removed when the dust filtering net passes through the dust cleaning roller, then the stepping motor rotates reversely to enable the dust filtering net to return to the original position, and in the period, the dust filtering net is reset through the extension spring between the sliding rod and the sliding rod sleeve.

Description

Technical Field

[0001] The utility model relates to the technical field of cooling towers, in particular to an induced ventilation cooling tower. Background Art

[0002] In current cooling tower technology, a common way to deal with heat energy is to dissipate heat by allowing high-temperature liquid and gas to exchange heat in it. However, traditional cooling towers have their shortcomings and limitations. For example, some traditional cooling tower designs do not fully utilize the ventilation system, resulting in poor heat dissipation.

[0003] In order to solve the above problems, the patent with publication number CN217636874U discloses a counter-flow ventilation cooling tower. The utility model includes a cooling box, the air inlet of which surrounds the cooling box, and an exhaust fan is installed on the top surface of the cooling box. The air inlet section of the exhaust fan is connected to the cooling box. The steel mesh is used to increase the overall air inlet (air) area of ​​the cooling tower, thereby improving the cooling effect, increasing the air inlet volume and avoiding the obstruction of the air flow by the shutter, thereby reducing the operating load of the top fan. The steel mesh can also prevent garbage such as plastic bags from entering the pool with the wind.

[0004] The above patent uses a steel mesh to prevent plastic bags and other garbage from entering the water pool. However, in an induced ventilation environment, various types of dust will be mixed in the wind flow. After these dust enter the water pool, they will also pollute the cooling water. To avoid the above situation, the prior art has a more fine dust filter for filtering. However, the dust filter has a small gap and is easily clogged by dust, which in turn affects the normal ventilation of the cooling tower. For this reason, the utility model provides an induced ventilation cooling tower. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides an induced ventilation cooling tower, which solves the problem of high overall energy consumption of the cooling tower due to the consumption of circulating water energy and electric control energy that require multiple circulation treatments in the past.

[0006] To achieve the above purpose, the utility model is implemented by the following technical solutions: an induced draft cooling tower, comprising a tower box, a dust filter mechanism is provided on the top of the tower box for filtering dust from the airflow entering the inner wall of the tower box, and the dust filter mechanism includes:

[0007] The dust filter assembly is arranged at the top opening of the tower box, and includes an air guide frame fixedly installed on the top of the tower box, a base plate is inserted into a through slot on one side of the air guide frame, and a dust cleaning roller is installed in the through slot on the other side, a dust filter net is connected to the base plate, and the dust filter net passes through the lower part of the dust cleaning roller and extends to the outside of the air guide frame;

[0008] The winding assembly is arranged at the upper part of the tower box and is used to wind up the dust filter;

[0009] The elastic stretching component is arranged between the base plate and the inner wall of the tower box and is used for elastically stretching and resetting the base plate.

[0010] Preferably, the winding assembly includes a stepper motor fixedly mounted on the front outer wall of the tower box, and a rotating rod is rotatably mounted on the upper inner wall of the tower box, the power output end of the stepper motor is connected to the power input end of the rotating rod, a roller is fixed on the outer wall of the rotating rod, and a dust filter is connected to the outer wall of the roller.

[0011] Preferably, the elastic stretching assembly includes a slide bar fixedly mounted on one side of the base plate, a slide bar sleeve is fixed on the inner wall of the tower box and sleeved on the outer wall of one end of the slide bar, and a stretching spring is connected between the slide bar and the slide bar sleeve.

[0012] Preferably, a ventilation assembly is fixedly installed on the top of the tower box, and the ventilation assembly includes a drive box fixedly installed on the top of the tower box, a drive shaft is rotatably installed inside the drive box, a plurality of groups of turbine blades are welded to the upper outer wall of the drive shaft, the turbine blades are located inside the drive box, a plurality of groups of fan blades are welded to the lower outer wall of the drive shaft, and a ventilation pipe is arranged on one side of the tower box.

[0013] Preferably, a water distribution plate is fixedly mounted on the inner wall of the upper end of the tower box, and a plurality of groups of spray balls are interconnected at the lower end of the water distribution plate.

[0014] Preferably, a first conduit and a second conduit are respectively connected to both sides of the drive box, the first conduit is connected to the tower box, the second conduit is connected to the water distribution plate, and a water pump is installed on the first conduit.

[0015] Beneficial Effects

[0016] The utility model provides an induced ventilation cooling tower. Compared with the prior art, it has the following beneficial effects:

[0017] (1) In this induced draft cooling tower, external cold air enters the tower box and is filtered through the dust filter. The stepper motor is started to drive the rotating rod and the roller to rotate. The roller rewinds the dust filter. The dust filter passes through the dust cleaning roller to remove the dust attached to the dust filter. The stepper motor then reverses to return the dust filter to its original position. During this period, the tension spring between the slide bar and the slide bar sleeve is used to reset the dust filter.

[0018] (2) The induced draft cooling tower uses a water pump to inject water from the tower box into the inner cavity of the water distribution plate through the first duct and the second duct. The inner cavity of the water distribution plate is connected to the spray ball and sprayed out through the fine holes on the outside of the ball. During this process, the turbine blades inside the drive box are forced to rotate, which in turn drives the fan blades to rotate. The fan blades are aimed at the tower box opening at the lower end and inject cold air into the interior to cool the sprayed water. This drive system is simpler and effectively saves energy. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a left isometric schematic diagram of the utility model;

[0020] Figure 2 It is a right isometric schematic diagram of the utility model;

[0021] Figure 3 This is a schematic diagram of a dust filter assembly of the utility model;

[0022] Figure 4 It is a schematic diagram of the elastic stretching component of the utility model;

[0023] Figure 5 This is a schematic diagram of the water cycle of the utility model;

[0024] Figure 6 It is a schematic diagram of the turbine blade and fan blade drive of the utility model.

[0025] In the figure: 1-tower box, 2-dust filtering mechanism, 21-dust filtering assembly, 211-air guide frame, 212-base plate, 213-dust cleaning roller, 214-dust filter net, 22-winding assembly, 221-stepping motor, 222-rotating rod, 223-roller, 23-elastic stretching assembly, 231-sliding rod, 232-sliding rod sleeve, 233-tension spring, 3-ventilation assembly, 31-drive box, 32-drive shaft, 33-turbine blades, 34-fan blades, 35-ventilation pipe, 4-water distribution plate, 5-spray ball, 6-first duct, 7-second duct, 8-water pump. DETAILED DESCRIPTION

[0026] 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.

[0027] See also Figure 1-6The utility model provides a technical solution: an induced ventilation cooling tower, comprising a tower box 1, a dust filter mechanism 2 is arranged on the top of the tower box 1 for filtering dust from the airflow entering the inner wall of the tower box 1, and the dust filter mechanism 2 includes:

[0028] The dust filter assembly 21 is arranged at the top opening of the tower box 1, and includes an air guide frame 211 fixedly installed on the top of the tower box 1. A base plate 212 is inserted into a through slot on one side of the air guide frame 211, and a dust cleaning roller 213 is installed in the through slot on the other side. A dust filter net 214 is connected to the base plate 212. The dust filter net 214 passes through the lower part of the dust cleaning roller 213 and extends to the outside of the air guide frame 211. External cold air enters the interior of the tower box 1 and is filtered through the dust filter net 214.

[0029] The winding assembly 22 is arranged at the upper part of the tower box 1 and is used to wind up the dust filter 214;

[0030] The elastic stretching assembly 23 is disposed between the base plate 212 and the inner wall of the tower box 1 and is used to elastically stretch and reset the base plate 212 .

[0031] In this embodiment, the winding assembly 22 includes a stepper motor 221 fixedly mounted on the front outer wall of the tower box 1, and a rotating rod 222 is rotatably mounted on the upper inner wall of the tower box 1, the power output end of the stepper motor 221 is connected to the power input end of the rotating rod 222, a roller 223 is fixed on the outer wall of the rotating rod 222, and the outer wall of the roller 223 is connected to the dust filter 214, and by starting the stepper motor 221 (which can drive the rotating rod 222 and the roller 223 to rotate, the roller 223 winds up the dust filter 214, and the dust filter 214 will remove the dust attached to it accordingly after passing through the dust cleaning roller 213.

[0032] In this embodiment, the elastic stretching assembly 23 includes a sliding rod 231 fixedly mounted on one side of the base plate 212, a sliding rod sleeve 232 is fixed to the inner wall of the tower box 1 and is sleeved on the outer wall of one end of the sliding rod 231, and a stretching spring 233 is connected between the sliding rod 231 and the sliding rod sleeve 232, and the dust filter 214 is reset by the stretching spring 233 between the sliding rod 231 and the sliding rod sleeve 232.

[0033] In this embodiment, a ventilation assembly 3 is fixedly installed on the top of the tower box 1. The ventilation assembly 3 includes a drive box 31 fixedly installed on the top of the tower box 1. A drive shaft 32 is rotatably installed inside the drive box 31. A plurality of turbine blades 33 are welded to the upper outer wall of the drive shaft 32. The turbine blades 33 are located in the drive box 31. A plurality of fan blades 34 are welded to the lower outer wall of the drive shaft 32. A ventilation pipe 35 is provided on one side of the tower box 1. A water distribution plate 4 is fixedly installed on the inner wall of the upper end of the tower box 1. A plurality of spray balls 5 are interconnected at the lower end of the water distribution plate 4. The two sides of the drive box 31 are respectively connected There are a first duct 6 and a second duct 7, the first duct 6 is connected to the tower box 1, the second duct 7 is connected to the water distribution plate 4, and a water pump 8 is installed on the first duct 6. The water pump 8 works to inject the water inside the tower box 1 into the inner cavity of the inner water distribution plate 4 through the first duct 6 and the second duct 7. The inner cavity of the water distribution plate 4 is connected to the spray ball 5 and sprayed out through the fine holes on the outside of the ball. In this process, the turbine blades 33 inside the driving box 31 are forced to rotate, and then drive the fan blades 34 to rotate. The fan blades 34 are aimed at the opening of the tower box 1 at the lower end and inject cold air into the interior to cool the sprayed water.

[0034] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0035] During operation, external water first enters the tower box 1, and the staff starts the equipment switch. The water pump 8 works to inject the water inside the tower box 1 into the inner cavity of the inner water distribution plate 4 through the first conduit 6 and the second conduit 7. The inner cavity of the water distribution plate 4 is connected with the spray ball 5 and sprayed out through the fine holes on the outside of the ball. In this process, the turbine blades 33 inside the drive box 31 are forced to rotate, and then drive the fan blades 34 to rotate. The fan blades 34 are aimed at the opening of the tower box 1 at the lower end and inject cold air into the interior to cool the sprayed water. This drive system is simpler and effectively saves energy; external cold air enters The dust enters the tower box 1 and is filtered through the dust filter 214. The stepper motor 221 (which can be rotated forward and reverse, and the specific model of the stepper motor is AM34HD0404-08) is started to drive the rotating rod 222 and the roller 223 to rotate. The roller 223 reels the dust filter 214. The dust filter 214 passes through the dust cleaning roller 213 to remove the dust attached to it. Then, the stepper motor 221 is reversed to return the dust filter 214 to its original position. During this period, it is reset by the tension spring 233 between the slide bar 231 and the slide bar sleeve 232.

[0036] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0037] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An induced draft cooling tower, comprising a tower box (1), characterized in that: The top of the tower box (1) is provided with a dust filtering mechanism (2) for filtering dust from the airflow entering the inner wall of the tower box (1), and the dust filtering mechanism (2) comprises: A dust filter assembly (21) is arranged at the top opening of the tower box (1), comprising an air guide frame (211) fixedly mounted on the top of the tower box (1), a base plate (212) being inserted into a through slot on one side of the air guide frame (211), and a dust cleaning roller (213) being mounted in the through slot on the other side, a dust filter net (214) being connected to the base plate (212), and the dust filter net (214) passing through the lower part of the dust cleaning roller (213) and extending to the outside of the air guide frame (211); A winding assembly (22) is arranged on the upper part of the tower box (1) and is used to wind up the dust filter (214); The elastic stretching component (23) is arranged between the base plate (212) and the inner wall of the tower box (1), and is used to elastically stretch and reset the base plate (212).

2. An induced draft cooling tower according to claim 1, characterized in that: The winding assembly (22) comprises a stepper motor (221) fixedly mounted on the front outer wall of the tower box (1), and a rotating rod (222) is rotatably mounted on the upper inner wall of the tower box (1), the power output end of the stepper motor (221) is connected to the power input end of the rotating rod (222), a roller (223) is fixed on the outer wall of the rotating rod (222), and a dust filter (214) is connected to the outer wall of the roller (223).

3. An induced draft cooling tower according to claim 1, characterized in that: The elastic stretching assembly (23) comprises a sliding rod (231) fixedly mounted on one side of the base plate (212); a sliding rod sleeve (232) is fixedly mounted on the inner wall of the tower box (1) and sleeved on the outer wall of one end of the sliding rod (231); and a stretching spring (233) is connected between the sliding rod (231) and the sliding rod sleeve (232).

4. An induced draft cooling tower according to claim 1, characterized in that: A ventilation assembly (3) is fixedly mounted on the top of the tower box (1), and the ventilation assembly (3) comprises a drive box (31) fixedly mounted on the top of the tower box (1), a drive shaft (32) is rotatably mounted inside the drive box (31), a plurality of groups of turbine blades (33) are welded to the upper outer wall of the drive shaft (32), the turbine blades (33) are located inside the drive box (31), a plurality of groups of fan blades (34) are welded to the lower outer wall of the drive shaft (32), and a ventilation pipe (35) is arranged on one side of the tower box (1).

5. An induced draft cooling tower according to claim 4, characterized in that: A water distribution plate (4) is fixedly mounted on the inner wall of the upper end of the tower box (1), and a plurality of groups of spray balls (5) are interconnected at the lower end of the water distribution plate (4).

6. An induced draft cooling tower according to claim 5, characterized in that: A first conduit (6) and a second conduit (7) are respectively connected to both sides of the drive box (31); the first conduit (6) is in communication with the tower box (1); the second conduit (7) is in communication with the water distribution plate (4); and a water pump (8) is installed on the first conduit (6).

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