Polygonal reverse-flow glass fiber reinforced plastic cooling tower

Abstract

The invention relates to the technical field of counter-flow cooling towers, in particular to a polygonal counter-flow glass fiber reinforced plastic cooling tower which comprises a tower body, a fan mounted at the top of the tower body, a spray head mounted in the tower body, an air inlet formed in the bottom of the tower body and filler arranged in the tower body. The water collecting tank is arranged at the bottom of the tower body, the air inlet cabin assembly is fixedly connected into the tower body, and the flow guide assembly is fixedly connected into the tower body; and the air inlet cabin assembly is positioned at the bottom of the filler and is used for guiding the direction of air entering the tower body and guiding circulating water flowing out of the filler. Through cooperative use of the flow guide assembly and the air inlet cabin assembly, it can be ensured that airflow is evenly distributed into the air inlet cabin assembly and finally evenly and vertically enters the filler along the air inlet cabin assembly, erosion of unstable airflow to the bottom of the filler is effectively relieved, and the service life of the filler is prolonged. And when the airflow passes through the flow guide assembly and the air inlet cabin assembly, the passing water flow can be further cooled.

Description

Technical Field

[0001] The invention relates to the technical field of counterflow cooling towers, in particular to a polygonal counterflow glass fiber reinforced plastic cooling tower. Background Art

[0002] Counterflow cooling tower is a heat exchanger with high heat exchange efficiency and is widely used in various heat transfer applications such as power generation units, chemical industry, petrochemical industry, refrigeration and air conditioning process, industrial process, etc. The principle of counterflow cooling tower is to introduce external cold air into the tower, and spray industrial circulating water on the filler by the spray system. The air is sucked into the cooling tower from bottom to top by the fan on the top of the tower, and flows in the opposite direction to the water in the filler layer, that is, water from top to bottom, and air from bottom to top. When the air passes through the filler layer, heat exchange occurs between the hot water and the air, and the heat of the hot water is transferred to the air, so that the temperature of the hot water drops, thereby achieving the purpose of cooling. The cooling water after heat transfer and cooling in the filler layer will be collected in the pool at the bottom of the tower, and then recycled through the pump.

[0003] In the prior art, film fillers are most commonly used in counterflow cooling towers. Their material is usually environmentally friendly plastics such as PVC. The manufacturing process of the filler is simple. It is formed by mold stamping and then glued into a filler assembly through connection points. It is also low in cost. The advantages of the filler are large liquid holding capacity, more uniform liquid phase film distribution, and increased heat exchange area and time of the gas-liquid phase. However, due to the design of the counterflow cooling tower for easy cooling, there is a long distance between the filler and the water collection tank. Therefore, the air entering the cooling tower from the bottom of the cooling tower easily adheres to the inner wall of the tower and rises. This will cause the air intake at the filler to be uneven and the wind direction to be unstable, resulting in the air intake in the middle of the filler to be less than the edge, thereby affecting the heat exchange efficiency in the middle of the filler. In addition, due to the light and thin design of the film filler, under long-term work, this uneven and unstable wind direction entering air will accelerate the erosion of the filler, resulting in excessive debris falling from the filler, and the debris entering the water collection tank will cause blockage over time.

[0004] Therefore, a polygonal counter-flow FRP cooling tower is proposed. Summary of the invention

[0005] The object of the present invention is to provide a polygonal countercurrent glass fiber reinforced plastic cooling tower, which solves the problems of uneven air intake at the filler and unstable wind direction, which will cause the air intake in the middle of the filler to be smaller than that at the edge, thereby affecting the heat exchange efficiency in the middle of the filler and accelerating the erosion of the filler. The present invention can make the air flow enter the filler evenly and vertically from the bottom of the cooling tower, effectively ensure the uniformity of the air intake at the filler, improve the heat exchange efficiency, and effectively slow down the erosion of the filler. The water flow can be used to collect the debris dropped at the filler, and the flow path of the cooling water can be extended to ensure the cooling effect.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A polygonal countercurrent glass fiber reinforced plastic cooling tower comprises a tower body, a fan installed on the top of the tower body, a nozzle installed in the tower body, an air inlet opened at the bottom of the tower, and a filler arranged in the tower. It also comprises a water collecting tank arranged at the bottom of the tower body, an air inlet cabin assembly fixedly connected to the tower body, and a flow guide assembly fixedly connected to the tower body; the air inlet cabin assembly is located at the bottom of the filler, guides the wind direction entering the tower body and guides the circulating water flowing out of the filler; the flow guide assembly is located below the air inlet cabin assembly, stratifies the wind entering the air inlet cabin assembly, and guides the water flow to finally enter the water collecting tank, and the hot water will be sprayed out from the nozzle, dispersed through the filler, and then flow into the water collecting tank through the air inlet cabin assembly and the flow guide assembly.

[0008] Preferably, the air inlet cabin assembly includes a drainage inclined plate fixedly connected to the tower body, a direct current channel fixedly connected to the drainage inclined plate above the direct current channel, an inclined plate fixedly connected to the above the direct current channel, and a vertical plate fixedly connected to the inclined plate. The vertical plate can ensure that the wind entering the filler is in a vertical entry state, preventing unstable wind direction, thereby reducing erosion of the filler.

[0009] Preferably, a connecting rod is fixedly connected to the direct current channel, and there are five groups of air inlet cabin assemblies in total, the intervals between each group are equal, and the inner diameter of each group gradually decreases from the outside to the inside, and the direct current channels in each group of air inlet cabin assemblies gradually become longer from the outside to the inside, and the air inlet cabin assemblies with larger diameters are successively mounted on the outside of the air inlet cabin assemblies with smaller diameters according to their diameters, and the outermost air inlet cabin assembly is fixedly connected to the inner side of the tower body, and the remaining four groups of air inlet cabin assemblies are fixedly connected to the outermost air inlet cabin assembly by means of connecting rods, and the water flow falling from the filler will flow out through the air inlet cabin assembly, thereby extending the water flow path.

[0010] Preferably, the drainage inclined plate is inclined at 45° to the horizontal, and the outermost drainage inclined plate is fixedly connected to the top of the air inlet.

[0011] Preferably, the outermost drainage inclined plate is also fixedly connected with a water guide bar, and the water will fall along the water guide bar when passing through the water guide bar.

[0012] Preferably, the guide assembly includes four groups of air guide plates fixedly connected to the air inlet and a guide plate fixedly connected to the air guide plate; the air guide plates divide the air inlet into five groups of air inlets of equal heights; the heights of the guide plates are all equal, and the airflow will flow along the air guide plates and the guide plates into the guide inclined plates at the corresponding positions.

[0013] Preferably, the guide plates are inclined at 35°, and each group of guide plates gradually becomes smaller from top to bottom, and each group of guide plates can receive the water flow out of the guide plates above.

[0014] Preferably, the positions of the guide plates correspond to the positions of the drainage ramps, and the bottoms of the four groups of drainage ramps close to the inside are located at two-thirds of the height of each group of guide plates. When the water flows through the guide plates, the water flow path will be further extended, and the airflow passing through the bottom of the guide plates will further cool the water.

[0015] Preferably, a collecting assembly is also fixedly connected to the water collecting pool; the collecting assembly includes a bottom plate fixedly connected to the top of the water collecting pool, a funnel fixedly connected to the bottom plate, and a door body rotatably connected to the side wall of the water collecting pool.

[0016] Preferably, the edge of the bottom plate is fixed and sealed to the bottom of the air inlet, and the bottom plate seals the top of the water collecting tank. The bottom plate can prevent impurities carried by the airflow entering the tower body from entering the water collecting tank.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. By setting up the coordinated use of the guide assembly and the air inlet cabin assembly, it can be ensured that the airflow is evenly distributed into each group of air inlet cabin assemblies, and finally enters the filler evenly and vertically along the air inlet cabin assembly, effectively avoiding the erosion of the bottom of the filler by unstable airflow, and the airflow will further cool the passing water when passing through the guide assembly and the air inlet cabin assembly.

[0019] 2. The special setting of the inclined plate allows the inclined plate to completely receive the water flow after the water flow passes through the vertical plate, so that the water flow can flow down along the side wall of the direct current channel after passing through the inclined plate, thereby ensuring the smooth passage of the air flow in the direct current channel, ensuring the stability of the air flow and water flow, and improving the cooling effect of the air flow on the water flow.

[0020] 3. The bottom plate can prevent impurities carried by the airflow entering the tower body from entering the water collection tank. When the airflow enters the tower body, the impurities in the airflow will be carried down by the water flow falling from the guide assembly and the air inlet cabin assembly, and finally flow into the funnel along the guide assembly for collection. The impurities that fall naturally due to weathering at the filler will also fall into the funnel along the water flow, effectively preventing the cooling tower from being unable to operate normally due to the accumulation of impurities in the water collection tank. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall appearance of the three-dimensional structure of the present invention;

[0022] Figure 2 It is a schematic diagram of the overall cross-sectional structure of the present invention;

[0023] Figure 3 This is a diagram showing the effect of the air inlet cabin assembly and the flow guide assembly of the present invention being used in combination;

[0024] Figure 4 It is a schematic diagram of the three-dimensional structure of the air inlet cabin assembly of the present invention;

[0025] Figure 5 A bottom view of the air inlet cabin assembly of the present invention;

[0026] Figure 6 It is a schematic diagram of the three-dimensional structure of the flow guide assembly of the present invention;

[0027] Figure 7 A bottom view of the flow guide assembly of the present invention;

[0028] Figure 8 It is a schematic diagram of the three-dimensional structure of the collecting component of the present invention.

[0029] In the figure: 1. tower body; 2. fan; 3. nozzle; 4. air inlet; 5. filler; 6. water collecting tank; 7. air inlet cabin assembly; 71. drainage inclined plate; 711. water guide strip; 72. direct current channel; 721. connecting rod; 73. inclined plate; 74. vertical plate; 8. guide assembly; 81. air guide plate; 82. guide plate; 9. collecting assembly; 91. bottom plate; 92. funnel; 93. door body. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] Example 1

[0032] Reference Figure 1 and Figure 2 , which is the first embodiment of the present invention, provides a polygonal countercurrent glass fiber reinforced plastic cooling tower, which can ensure that the airflow enters the filler 5 stably and evenly, and includes a tower body 1, a fan 2 installed on the top of the tower body 1, a nozzle 3 installed in the tower body 1, an air inlet 4 opened at the bottom of the tower, and the filler 5 arranged in the tower, and also includes a water collecting tank 6 arranged at the bottom of the tower body 1, an air inlet cabin assembly 7 fixedly connected to the tower body 1, and a guide assembly 8 fixedly connected to the tower body 1; the air inlet cabin assembly 7 is located at the bottom of the filler 5, and can guide the wind direction entering the tower body 1 and guide the circulating water flowing out of the filler 5; the guide assembly 8 is located below the air inlet cabin assembly 7, and can stratify the wind entering the air inlet cabin assembly 7, and guide the water flow to finally enter the water collecting tank 6.

[0033] When in use, when the cooling tower is working, hot water will be sprayed out from the nozzle 3, dispersed through the filler 5, and then flow into the water collecting tank 6 through the air inlet cabin assembly 7 and the guide assembly 8. In this process, the air inlet cabin assembly 7 and the guide assembly 8 both extend the path of the water flow. In the process of the water flow falling, the air flow will enter the guide assembly 8 from the air inlet 4 under the action of the fan 2. Due to the special setting of the guide assembly 8 and the air inlet cabin assembly 7, the air inlet will be evenly divided into five equal parts by the guide assembly 8, and the air flow can be evenly distributed into the air inlet cabin assembly 7, and the vertical setting of the top of the air inlet cabin assembly 7 can make the air flow evenly and vertically enter the filler 5. The air flow will further cool the passing water when passing through the guide assembly 8 and the air inlet cabin assembly 7.

[0034] Example 2

[0035] Reference Figure 2-7 , which is the second embodiment of the present invention, which is different from the first embodiment in that it also includes an air inlet cabin assembly 7 and a guide assembly 8. In the previous embodiment, the polygonal countercurrent glass fiber reinforced plastic cooling tower includes a tower body 1, a fan 2 installed on the top of the tower body 1, a nozzle 3 installed in the tower body 1, an air inlet 4 opened at the bottom of the tower, and a filler 5 arranged in the tower, and also includes a water collecting tank 6 arranged at the bottom of the tower body 1, an air inlet cabin assembly 7 fixedly connected to the tower body 1, and a guide assembly 8 fixedly connected to the tower body 1.

[0036] Furthermore, the air inlet cabin assembly 7 includes a drainage inclined plate 71 fixedly connected to the tower body 1, a direct current channel 72 fixedly connected above the drainage inclined plate 71, an inclined plate 73 fixedly connected above the direct current channel 72, and a vertical plate 74 fixedly connected to the inclined plate 73. The vertical plate 74 is located directly below the filler 5 to ensure that the wind entering the filler 5 is in a vertical entry state, prevents unstable wind direction, and thus reduces erosion of the filler 5. The special setting of the inclined plate 73 allows the inclined plate 73 to fully receive the water flow after the water flow passes through the vertical plate 74, so that the water flow can flow down along the side wall of the direct current channel 72 after passing through the inclined plate 73, thereby ensuring the smooth passage of the airflow in the direct current channel 72.

[0037] Furthermore, a connecting rod 721 is fixedly connected to the DC channel 72, and there are five groups of air inlet cabin assemblies 7, the intervals between each group are equal, and the inner diameter of each group gradually decreases from the outside to the inside, and the DC channels 72 in each group of air inlet cabin assemblies 7 are successively longer from the outside to the inside, and the air inlet cabin assemblies 7 with larger diameters are successively mounted on the outside of the air inlet cabin assemblies 7 with smaller diameters according to their diameters, and the outermost air inlet cabin assembly 7 is fixedly connected to the inner side of the tower body 1, and the remaining four groups of air inlet cabin assemblies are fixedly connected to the outermost air inlet cabin assembly 7 by means of the connecting rod 721.

[0038] The drainage inclined plate 71 is inclined at 45° to the horizontal, and the outermost drainage inclined plate 71 is fixedly connected to the top of the air inlet 4 .

[0039] Furthermore, a water guide bar 711 is fixedly connected to the outermost drainage inclined plate 71. When water flows through the water guide bar 711, it will fall along the water guide bar 711, fall to the guide plate 82 and flow along the guide plate 82. The function of the water guide bar 711 can prevent water from falling along the drainage inclined plate 71 and splashing out of the air inlet 4 when water flows through the outermost drainage inclined plate 71.

[0040] Furthermore, the guide assembly 8 includes four groups of guide plates 81 fixedly connected to the air inlet 4, and a guide plate 82 fixedly connected to the guide plate 81; the guide plate 81 divides the air inlet 4 into five groups of air inlets 4 of equal height; the guide plates 82 are all of equal height, and during operation, the airflow will follow the bottom of the guide plates 81 and 82 into the guide inclined plates 71 at the corresponding position, and then follow the guide inclined plates 71, the direct current channels 72, the inclined plates 73 and the vertical plates 74 to finally enter the filler 5.

[0041] Among them, the guide plates 82 are inclined at 35 degrees, and each group of guide plates 82 gradually becomes smaller from top to bottom. Each group of guide plates 82 can receive the water flow from the upper guide plates 82. The cooling effect of the water flow will be further enhanced in the process of falling through the guide plates 82 in sequence.

[0042] Furthermore, the positions of the guide plates 82 correspond to the positions of the guide ramps 71, and the bottoms of the four groups of guide ramps 71 close to the inside are located at two-thirds of the height of each group of guide plates 82. When the water flows through the guide plates 82, the water flow path will be further extended, and the airflow passing through the bottom of the guide plates 82 will further cool the water.

[0043] During use, when the cooling tower is working, hot water will be sprayed out from the nozzle 3, dispersed through the filler 5, and finally flow into the water collecting tank 6 through the air inlet cabin assembly 7 and the guide assembly 8. During this process, under the action of the fan 2, the airflow will enter the air inlet cabin assembly 7 from the guide assembly 8. Since the air guide plate 81 evenly divides the air inlet 4 into five equal parts, and the vertical plate 74 is vertically arranged, the airflow can evenly and vertically enter the filler 5, reducing the erosion and damage of the airflow to the filler 5. When the water flows through the outermost drainage inclined plate 71, the water flows along the water guide bar 711 and falls down, falls to the guide plate 82 and flows along the guide plate 82. When the water flows through the guide plate 82, the water flow path will be further extended, and the airflow passing through the bottom of the guide plate 82 will further cool the water.

[0044] Example 3

[0045] Reference Figure 2and Figure 8 , which is the third embodiment of the present invention, and is different from the previous two embodiments in that it also includes a collecting component 9 fixedly connected to the water collecting pool 6, the collecting component 9 includes a bottom plate 91 fixedly connected to the top of the water collecting pool 6, a funnel 92 fixedly connected to the bottom plate 91, and a door body 93 rotatably connected to the side wall of the water collecting pool 6, the funnel 92 and the bottom plate 91 are set to be movably connected. When it is necessary to clean impurities in the funnel 92, the door body 93 can be opened to take out the funnel 92.

[0046] The edge of the bottom plate 91 is fixed and sealed to the bottom of the air inlet 4 , and the bottom plate 91 seals the top of the water collecting tank 6 . The bottom plate 91 can prevent impurities carried by the airflow entering the tower body 1 from entering the water collecting tank 6 .

[0047] During use, when the airflow enters the tower body 1, the impurities in the airflow will be carried down by the water flow falling from the guide component 8 and the air inlet cabin component 7, and finally flow into the funnel 92 along the guide component 8 for collection. The impurities dropped from the filler 5 will also follow the water flow and finally fall into the funnel 92.

[0048] Working principle:

[0049] When the cooling tower is working, hot water will be sprayed out from the nozzle 3, dispersed through the filler 5, and then flow into the water collection tank 6 through the air inlet cabin component 7 and the guide component 8. The water sprayed by the nozzle 3 will be evenly distributed on the filler 5 and flow downward along the filler 5;

[0050] When the water flows along the filler 5 to the air inlet cabin assembly 7, the water flows along the vertical plate 74 and passes through the inclined plate 73. Due to the special arrangement of the inclined plate 73, the inclined plate 73 can completely receive the water flow after the water flows through the vertical plate 74, so that the water flows along the side wall of the direct current channel 72 after passing through the inclined plate 73, and then flows out to the guide assembly 8 through the diversion inclined plate 71. When the water flows through the outermost diversion inclined plate 71, it will fall along the water guide strip 711, fall to the guide plate 82, and flow along the guide plate 82.

[0051] When the water flows through the guide assembly 8, it will fall through the guide plates 82 layer by layer, and then be filtered by the funnel 92 and finally enter the water collection tank 6;

[0052] During the above movement, the airflow will enter the air inlet cabin assembly 7 from the air guide assembly 8. Since the air guide plate 81 evenly divides the air inlet 4 into five equal parts, and the vertical plate 74 is arranged vertically, the airflow can evenly and vertically enter the filler 5, thereby avoiding erosion and damage to the filler 5 by unstable airflow.

[0053] When the airflow enters the tower body 1 from the air inlet 4, the impurities in the airflow will be carried down by the water flow falling from the guide assembly 8 and the air inlet cabin assembly 7, and finally flow into the funnel 92 along the guide assembly 8 for collection. The impurities dropped from the filler 5 will also fall into the funnel 92 along the water flow.

[0054] In the above process, the air inlet cabin assembly 7 and the guide assembly 8 both extend the flow path of the water flow, and at the same time the air flow also cools the water flow at the guide assembly 8 and the air inlet cabin assembly 7, thereby effectively improving the heat exchange efficiency of the water flow.

[0055] Even though we have provided specific embodiments of the present invention, it should be clear to those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without violating the fundamental concept and purpose of the present invention. The scope of the present invention is not fixed, but is ultimately determined by the claims contained in the patent document and the equivalent technical solutions. In short, the scope of the present invention is defined by the attached claims and their equivalents.

Claims

1. A polygonal counter-flow glass fiber reinforced plastic cooling tower, comprising a tower body (1), a fan (2) installed on the top of the tower body (1), a nozzle (3) installed in the tower body (1), an air inlet (4) opened at the bottom of the tower, and a filler (5) arranged in the tower, characterized in that: It also includes a water collecting tank (6) arranged at the bottom of the tower body (1), an air inlet cabin assembly (7) fixedly connected to the tower body (1), and a flow guide assembly (8) fixedly connected to the tower body (1); the air inlet cabin assembly (7) is located at the bottom of the filler (5) to guide the wind direction entering the tower body (1) and to guide the circulating water flowing out of the filler (5); the flow guide assembly (8) is located below the air inlet cabin assembly (7) to stratify the wind entering the air inlet cabin assembly (7) and to guide the water flow to finally enter the water collecting tank (6).

2. The polygonal counter-flow glass fiber reinforced plastic cooling tower according to claim 1, characterized in that: The air inlet cabin assembly (7) comprises a drainage inclined plate (71) fixedly connected inside the tower body (1), a direct current channel (72) fixedly connected above the drainage inclined plate (71), an inclined plate (73) fixedly connected above the direct current channel (72), and a vertical plate (74) fixedly connected to the inclined plate (73).

3. The polygonal counter-flow glass fiber reinforced plastic cooling tower according to claim 2, characterized in that: The direct current passage (72) is also fixedly connected to a connecting rod (721), and a total of five groups of air inlet cabin assemblies (7) are provided, the intervals between each group are equal, and the inner diameter of each group gradually decreases from the outside to the inside, and the direct current passage (72) in each group of air inlet cabin assemblies (7) is successively longer from the outside to the inside, and the air inlet cabin assemblies (7) with larger diameters are successively sleeved on the outside of the air inlet cabin assemblies (7) with smaller diameters according to the diameter size, and the outermost air inlet cabin assembly (7) is fixedly connected to the inner side of the tower body (1), and the remaining four groups of air inlet cabin assemblies are fixedly connected to the outermost air inlet cabin assembly (7) by means of the connecting rod (721).

4. The polygonal counter-flow glass fiber reinforced plastic cooling tower according to claim 3, characterized in that: The drainage inclined plate (71) is inclined at 45° to the horizontal, and the outermost drainage inclined plate (71) is fixedly connected to the top of the air inlet (4).

5. The polygonal counter-flow glass fiber reinforced plastic cooling tower according to claim 4, characterized in that: The outermost drainage inclined plate (71) is also fixedly connected to a water guide strip (711).

6. The polygonal counter-flow glass fiber reinforced plastic cooling tower according to claim 1, characterized in that: The air guide assembly (8) comprises four groups of air guide plates (81) fixedly connected to the air inlet (4), and an air guide plate (82) fixedly connected to the air guide plates (81); the air guide plates (81) divide the air inlet (4) into five groups of air inlets (4) of equal height; and the air guide plates (82) are all of equal height.

7. The polygonal counter-flow glass fiber reinforced plastic cooling tower according to claim 6, characterized in that: The guide plates (82) are inclined at 35 degrees, and each group of guide plates (82) gradually becomes smaller from top to bottom.

8. The polygonal counter-flow glass fiber reinforced plastic cooling tower according to claim 7, characterized in that: The positions of the guide plates (82) all correspond to the positions of the guide inclined plates (71), and the bottoms of the four groups of guide inclined plates (71) close to the inner side are all located at two-thirds of the height of each group of guide plates (82).

9. The polygonal counter-flow glass fiber reinforced plastic cooling tower according to claim 1, characterized in that: The water collecting tank (6) is also fixedly connected to a collecting assembly (9); the collecting assembly (9) comprises a bottom plate (91) fixedly connected to the top of the water collecting tank (6), a funnel (92) fixedly connected to the bottom plate (91), and a door body (93) rotatably connected to the side wall of the water collecting tank (6).

10. The polygonal counter-flow glass fiber reinforced plastic cooling tower according to claim 9, characterized in that: The edge of the bottom plate (91) is fixed and sealed to the bottom of the air inlet (4), and the bottom plate (91) seals the top of the water collection tank (6).

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