Circulating water cooling device for flue gas microbiological treatment tower

Abstract

The utility model provides a circulating water cooling device for a flue gas microbiological treatment tower. The circulating water cooling device comprises a lower water tank, an upper water tank and a heat dissipation mechanism, the lower pool is arranged at the bottom; the upper pool is fixed above the lower pool in a suspended mode through a plurality of lower supporting columns. The heat dissipation mechanism comprises an upper heat dissipation device, a lower heat dissipation device, an annular heat dissipation device and a heat dissipation fan; the upper radiator is suspended and fixed above the upper water tank; the lower radiator is suspended and fixed at the bottom of the upper radiator; the annular radiators are multiple layers of annular structural parts arranged on the outer wall of the upper water pool from top to bottom, each layer of annular radiator comprises an annular groove and third cooling fins, the annular grooves are annularly formed in the outer wall of the upper water pool, and the third cooling fins are multiple plate bodies fixed to the outer walls of the annular grooves; the cooling fan is installed on the top of the upper radiator. The circulating water cooling device is high in heat dissipation efficiency, small in occupied area, low in land cost, high in low-temperature circulating water supply capacity and capable of well meeting the requirement of a microbiological treatment system for low-temperature circulating water.

Description

TECHNICAL FIELD

[0001] The utility model relates to circulating water cooling technical field, concretely relates to a circulating water cooling device for flue gas microorganism treatment tower. BACKGROUND

[0002] At present, for industrial waste gas, usually need to carry out treatment to reach standard before discharging, for the treatment of industrial waste gas, the technology of using microorganism tower to treat flue gas is more and more applied, when microorganism tower treats flue gas, usually first high-temperature flue gas is cooled in humidification tower by circulating water, then is introduced into microorganism treatment system, uses the action of microorganism to treat the harmful substance in flue gas, the existing microorganism treatment system usually adopts two parallelly arranged microorganism treatment groups, each microorganism treatment group includes 3 or more microorganism treatment towers connected in series, multiple microorganism treatment units are arranged in each microorganism treatment tower, microorganism is cultivated in each microorganism treatment unit, flue gas enters the microorganism treatment tower from bottom to top, reacts with microorganism after passing through microorganism treatment unit in turn, and filters out harmful substance, atomizing nozzles are arranged above each microorganism treatment unit, low-temperature circulating water is sprayed from atomizing nozzles to microorganism treatment unit, on the one hand, provides sufficient moisture for the growth and reaction of microorganism, guarantees reaction humidity, on the other hand, is used for cooling flue gas. Circulating water finally flows to the bottom of microorganism treatment tower, then is discharged to circulating water heat sink, carries out heat exchange, after reducing temperature, recirculates and flows into microorganism treatment system and is used circularly.

[0003] Because the microorganism treatment system includes humidification tower and at least 4 or more microorganism treatment towers, a large amount of low-temperature circulating water is needed in the use process, which puts forward higher requirements on the heat dissipation capacity of circulating water heat sink, but the heat dissipation efficiency of the existing circulating water heat sink is low, in order to meet the demand of microorganism treatment system for low-temperature circulating water, the area of circulating water heat sink has to be expanded to improve the heat dissipation efficiency of circulating water heat sink, resulting in that the land occupation area of circulating water heat sink increases and the land cost improves. UTILITY MODEL CONTENT

[0004] To solve the above problems, the purpose of the utility model is to provide a circulating water cooling device for flue gas microorganism treatment tower, which has high heat dissipation efficiency, small land occupation area and low land cost.

[0005] The utility model discloses a circulating water cooling device for flue gas microbial treatment tower, including the lower pool, the upper pool and the heat abstractor, the lower pool sets up at the bottom, the upper pool is suspended and is fixed above the lower pool through the lower support column of setting in the lower pool vertically, the heat abstractor includes the upper radiator, the lower radiator, annular radiator and the heat dissipation fan, the upper radiator is suspended and is fixed above the upper pool, the lower radiator is suspended and is fixed at the bottom of upper radiator, and the lower part of lower radiator is immersed in the circulating water in the upper pool, and the upper part is located above the circulating water in the upper pool, the annular radiator is the annular structural member of multilayer from top to bottom setting on the outer wall of the upper pool, and each layer annular radiator includes annular groove and third fin, the annular groove is ringed and is arranged on the outer wall of the upper pool, and the third fin is the board body of fixing on the outer wall of annular groove, and the outer diameter of last layer annular radiator is less than the inner diameter of annular groove in next layer annular radiator, and the outer diameter of the lowest layer annular radiator is less than the inner diameter of the lower pool, and the heat dissipation fan is installed at the top of upper radiator.

[0006] The circulating water cooling device has high heat dissipation efficiency, small land occupation, low land cost, high low-temperature circulating water supply capacity and can meet the demand of the microbial treatment system for low-temperature circulating water. BRIEF DESCRIPTION OF DRAWINGS

[0007] The structure of the utility model will be further explained in detail in combination with the drawings.

[0008] Figure 1 It is a structure diagram of the circulating water cooling device for flue gas microbial treatment tower.

[0009] Figure 2 It is Figure 1 The sectional view.

[0010] As shown in the figure: 1 is the lower pool, 2 is the lower support column, 3 is the upper pool, 4 is the annular groove, 5 is the third fin, 6 is the upper support column, 7 is the center rod, 8 is the second fin, 9 is the heat dissipation plate, 10 is the first fin, 11 is the heat dissipation fan, 12 is the water inlet pipe, 13 is the water outlet pipe. DETAILED DESCRIPTION

[0011] The embodiments of the utility model will be further explained in detail in combination with the drawings, and the person skilled in the art can easily understand other advantages and effects of the utility model from the contents disclosed in the specification. The described embodiments are only a part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor belong to the protection scope of the utility model.

[0012] It should be understood that the structure, proportion, size and the like shown in the drawings of the specification are only used to cooperate with the disclosed content, to be understood and read by those skilled in the art, and are not used to limit the implementation conditions of the utility model, so they do not have technical significance. Any modification of structure, change of proportion relationship or adjustment of size, without affecting the effects and purposes that can be achieved by the utility model, should still fall within the scope of the disclosed technical content. At the same time, the terms such as "upper", "lower", "left", "right", "middle" and the like in the specification are only used for clear description, and are not used to limit the scope of the utility model. The change or adjustment of the relative relationship is also considered as the implementation range of the utility model without changing the technical content.

[0013] In the description of the utility model, it should be noted that, unless otherwise specified and limited, the terms "connected", "connected" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances. It should be noted that the terms "include", "contain" or any other variant are intended to cover non-exclusive inclusion, so that the process, method, article or equipment containing a series of elements not only includes those elements, but also includes other elements not explicitly listed, or includes elements inherent in such process, method, article or equipment. Embodiment 1

[0014] As Figure 1 With Figure 2 As shown in the embodiment, a circulating water cooling device for a flue gas microbial treatment tower is provided, which comprises a lower pool 1, an upper pool 3 and a heat dissipation mechanism.

[0015] The lower pool 1 is arranged at the bottom and has a circular groove shape as a whole, is used for storing circulating water cooled by the heat dissipation mechanism, and is used for supplying low-temperature circulating water to the microbial treatment system. The lower pool 1 is connected with a water outlet pipe 13 at the side wall (middle upper part), one end of the water outlet pipe 13 is communicated with the inside of the lower pool 1, the other end is connected with a water pump outside, and the water outlet pipe 13 is used for pumping the circulating water in the lower pool 1 to the microbial treatment system under the action of the water pump.

[0016] The upper water tank 3 is in the shape of a circular groove as a whole, and is suspendedly fixed above the lower water tank 1 by a plurality of lower supporting columns 2 vertically arranged in the lower water tank 1, with the bottom of the upper water tank 3 being higher than the top of the lower water tank 1; the number of the lower supporting columns 2 is 4-8, and the lower supporting columns 2 are evenly arranged between the upper water tank 3 and the lower water tank 1, with the lower ends of the lower supporting columns 2 being fixed to the inner wall bottom of the lower water tank 1 and the upper ends of the lower supporting columns 2 being fixed to the outer wall bottom of the upper water tank 3. The upper water tank 3 is connected with a water inlet pipe 12, one end of the water inlet pipe 12 being communicated with the inside of the upper water tank 3 and the other end of the water inlet pipe 12 being communicated with an external water pump, so that the high-temperature circulating water is pumped into the water inlet pipe 12 by the water pump and then sent into the upper water tank 3.

[0017] The heat dissipation mechanism comprises an upper heat radiator, a lower heat radiator, an annular heat radiator and a heat dissipation fan 11.

[0018] The upper heat radiator is suspendedly fixed above the upper water tank 3, and is composed of a heat dissipation plate 9 and first heat dissipation fins 10, both of which are made of aluminum alloy material; the heat dissipation plate 9 is suspendedly fixed above the upper water tank 3 by a plurality of upper supporting columns 6, and is a horizontally arranged flat plate, with a plurality of through holes for airflow passing being arranged on the heat dissipation plate 9; the number of the upper supporting columns 6 is four, and the upper supporting columns 6 are evenly fixed between the bottom of the heat dissipation plate 9 and the top of the upper water tank 3; the first heat dissipation fins 10 are a plurality of plate bodies fixed to the top of the heat dissipation plate 9, and are parallel to each other, with a channel for air flow being arranged between two adjacent first heat dissipation fins 10, so as to facilitate the heat exchange between the first heat dissipation fins 10 and the air.

[0019] The lower heat radiator is suspendedly fixed to the bottom of the upper heat radiator, with the lower part of the lower heat radiator being immersed in the circulating water in the upper water tank and the upper part of the lower heat radiator being located above the circulating water in the upper water tank; the lower heat radiator comprises a center rod 7 and second heat dissipation fins 8, both of which are made of aluminum alloy material; the center rod 7 is vertically fixed to the center of the bottom of the heat dissipation plate 9, and the second heat dissipation fins 8 are a plurality of plate bodies vertically fixed to the center rod 7 in a radiating manner, with the lower part of the second heat dissipation fins 8 being immersed in the circulating water in the upper water tank 3 (the lower half of the second heat dissipation fins 8 is immersed in the upper water tank 3), the upper part of the second heat dissipation fins 8 being located above the circulating water in the upper water tank 3 (the upper half of the second heat dissipation fins 8 is located above the upper water tank 3), and the top of the second heat dissipation fins 8 being in contact with the bottom of the heat dissipation plate 9, so as to facilitate the rapid heat transfer.

[0020] The annular heat sink is a three-layer annular structure arranged on the outer wall of the upper tank 3 from top to bottom. Each layer of the annular heat sink comprises an annular groove 4 and third heat sink fins 5. The annular groove 4 is annularly arranged on the outer wall of the upper tank 3. The third heat sink fins 5 are a plurality of plate bodies fixed vertically in a radial line shape on the outer wall of the annular groove 4. The outer diameter of the upper layer of the annular heat sink is smaller than the inner diameter of the annular groove 4 of the next layer of the annular heat sink (the diameter of the outer edge of the third heat sink fins 5 is smaller than the inner diameter of the annular groove 4 of the next layer of the annular heat sink). The outer diameter of the lowermost layer of the annular heat sink is smaller than the inner diameter of the lower tank 1 (the diameter of the outer edge of the third heat sink fins 5 is smaller than the inner diameter of the lower tank 1). The bottom of the annular groove 4 of the lowermost layer of the annular heat sink is higher than the top of the lower tank 1.

[0021] The heat dissipation fan 11 is installed on the top of the second heat sink fins 8 of the upper heat sink. A conventional axial flow fan is selected to draw away the hot air in the heat dissipation mechanism and improve the heat exchange efficiency.

[0022] Working principle:

[0023] The high-temperature circulating water enters the upper tank 3 from the water inlet pipe 12. As the water level in the upper tank 3 rises, the circulating water first contacts the lower part of the lower heat sink for heat exchange. The temperature of the lower heat sink rises and the heat is transmitted upward to the upper heat sink. In the process of transmission, the second heat sink fins 8 (upper part) of the lower heat sink exchange heat with the outside air to reduce the temperature. After the heat is transmitted to the upper heat sink, the heat dissipation plate 9 and the first heat sink fins 10 of the upper heat sink also exchange heat with the outside air to reduce the temperature. The temperature of the outside air rises. Then, under the suction of the heat dissipation fan 11, the hot air is drawn away and cold air enters the upper heat sink and the lower heat sink for heat exchange again, thereby realizing the reduction of the temperature of the circulating water. When the water level in the upper tank 3 rises and exceeds the top of the upper tank 3, the circulating water flows into the annular groove 4 of the uppermost layer of the annular heat sink from the top of the upper tank 3. The circulating water flows downward while exchanging heat with the air to reduce the temperature. When the annular groove 4 of the uppermost layer of the annular heat sink is full of water, the circulating water flows downward from the top of the annular groove 4 and flows through the third heat exchange fins 5 on the outer wall of the annular groove 4, and then flows into the annular groove 4 of the next layer of the annular heat sink. The circulating water exchanges heat with the third heat exchange fins 5 in the process of flowing downward. The third heat exchange fins 5 further diffuse the heat (increase the heat exchange area) and exchange heat with the outside air to further reduce the temperature of the circulating water. Similarly, the circulating water continues to flow downward and enters the second layer of the annular heat sink and the third layer of the heat exchanger in turn for heat exchange. The cooled circulating water is obtained and flows into the lower tank 1 for storage. Then, the water is pumped out by the water pump and sent to the microbial treatment system for use. The above steps are repeated to realize the continuous cooling and use of the circulating water. The entire circulating water cooling device has a small footprint and high heat exchange efficiency. Example 2

[0024] The difference between this embodiment and example 1 is:

[0025] The overall shape of the lower water tank 1, the upper water tank 3 and the heat dissipation mechanism can be a polygonal structure (such as a triangular, quadrangular, pentagonal, hexagonal regular polygonal structure or other special-shaped structure) in addition to the circular shape described in Embodiment 1.

[0026] Other aspects of the utility model not described in detail are conventional techniques known to those skilled in the art.

[0027] It should be noted that the terms "comprising", "including", or any other variant thereof are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can also include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0028] The protection scope of the utility model is not limited to the technical solutions disclosed in the specific embodiments, and any modification, equivalent replacement, improvement, etc. made according to the technical essence of the utility model to the above embodiments all fall within the protection scope of the utility model.

Claims

1. A circulating water cooling device for a flue gas microbial treatment tower, characterized in that: The application relates to a water heating device, which comprises a lower water tank, an upper water tank and a heat radiation mechanism; the lower water tank is arranged at the bottom; the upper water tank is suspendedly fixed above the lower water tank through a plurality of lower supporting columns arranged vertically in the lower water tank; the heat radiation mechanism comprises an upper heat radiator, a lower heat radiator, an annular heat radiator and a heat fan; the upper heat radiator is suspendedly fixed above the upper water tank; the lower heat radiator is suspendedly fixed at the bottom of the upper heat radiator, and the lower part of the lower heat radiator is immersed in circulating water in the upper water tank, and the upper part of the lower heat radiator is located above the circulating water in the upper water tank; the annular heat radiator is a multi-layer annular structural member arranged from top to bottom on the outer wall of the upper water tank, each layer of the annular heat radiator comprises an annular groove and a third heat fin, the annular groove is annularly arranged on the outer wall of the upper water tank, and the third heat fin is a plurality of plate bodies fixed on the outer wall of the annular groove; the outer diameter of the upper layer of the annular heat radiator is smaller than the inner diameter of the annular groove of the lower layer of the annular heat radiator, and the outer diameter of the lowermost layer of the annular heat radiator is smaller than the inner diameter of the lower water tank; and the heat fan is installed at the top of the upper heat radiator.

2. The circulating water cooling device for a flue gas microbial treatment tower according to claim 1, characterized in that: The upper heat radiator comprises a heat radiation plate and a first heat fin, the heat radiation plate is suspendedly fixed above the upper water tank through a plurality of upper supporting columns, and the first heat fin is a plurality of plate bodies fixed on the top of the heat radiation plate.

3. The circulating water cooling device for a flue gas microbial treatment tower according to claim 2, characterized in that: The lower heat radiator comprises a central rod and a second heat fin; the central rod is vertically fixed at the bottom of the heat radiation plate, and the second heat fin is a plurality of plate bodies fixed on the central rod in a radiating shape; the lower part of the second heat fin is immersed in the circulating water in the upper water tank, and the upper part of the second heat fin is located above the circulating water in the upper water tank.

4. The circulating water cooling device for a flue gas microbial treatment tower according to claim 2, characterized in that: A plurality of through holes are arranged on the heat radiation plate.

5. The circulating water cooling device for a flue gas microbial treatment tower according to claim 1, characterized in that: The materials of the upper heat radiator and the lower heat radiator are both aluminum alloy plates.

6. The circulating water cooling device for a flue gas microbial treatment tower according to claim 1, characterized in that: The number of the annular heat radiators is three.

7. The circulating water cooling device for a flue gas microbial treatment tower according to claim 1, characterized in that: The bottom of the upper water tank and the bottom of the lowermost layer of the annular heat radiator outside the upper water tank are both higher than the top of the lower water tank.

8. The circulating water cooling device for a flue gas microbial treatment tower according to claim 1, characterized in that: A water inlet pipe is connected to the bottom of the upper water tank; and a water outlet pipe is connected to the side wall of the lower water tank.

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