Combined heat exchange device

Abstract

The utility model discloses a combined heat exchange device. The combined heat exchange device comprises a spraying layer, a flow guide layer and a basic packing layer which are sequentially arranged from top to bottom, the spraying layer comprises a plurality of parallel spraying pipes which are evenly distributed in the left-right direction, and the spraying pipes are wrapped with shell pieces. The flow guide layer comprises a plurality of parallel vertical blocking pieces which are evenly distributed in the left-right direction, flow passing spaces which are communicated up and down are formed between the adjacent vertical blocking pieces, and the spraying pipes are correspondingly arranged above part of the flow passing spaces; the basic packing layer comprises a plurality of parallel vertical packing sheets which are uniformly distributed in the front-back direction, and a basic heat exchange space is formed between every two adjacent vertical packing sheets; the spraying pipe sprays in a limited space, water flow in a spraying area is prevented from being greatly taken away by airflow to form drifting loss, in addition, partial water supply of the basic filler layer can be achieved, the overall tower outlet airflow is kept in an unsaturated state, the white smoke phenomenon of the cooling tower is fundamentally restrained, and the service life of the cooling tower is prolonged. And the purposes of environmental protection and water saving are achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of fluid heat exchanger, concretely relates to a combined heat exchange device. BACKGROUND

[0002] The cooling tower is a common circulating water cooling equipment, and its heat exchange device comprises a circulating water spray head and a filler, and the spray water is sprayed into the filler to exchange heat with the airflow, so that the spray water is cooled, and according to the actual production and use experience, it is known that the difference between the circulating water spray head in the existing cooling tower and the upper surface of the filler is large, a spray area with a certain height is formed, part of the water flow in the spray area is directly taken away by the water flow, so that a large amount of floating drop loss is formed, in addition, the existing cooling tower heat exchange device generally adopts a full spray mode, and a large amount of white smoke is easily formed in winter, and the existence of the above problems is not conducive to achieving the purpose of water saving and environmental protection, and there is a certain improvement and promotion space. SUMMARY

[0003] In view of the problems in the background art, the utility model aims to provide a combined heat exchange device which effectively solves the problems in the background art.

[0004] To achieve the above object, the utility model adopts the following technical scheme:

[0005] A combined heat exchange device comprises a spray layer, a flow guide layer and a basic filler layer arranged in sequence from top to bottom, the spray layer comprises a plurality of mutually parallel spray pipes uniformly distributed along the left-right direction, and the spray pipes are covered with shell pieces, the flow guide layer comprises a plurality of mutually parallel vertical baffles uniformly distributed along the left-right direction, adjacent vertical baffles have flow-through spaces connected in series, and the spray pipes are arranged above part of the flow-through spaces, and the basic filler layer comprises a plurality of mutually parallel vertical filler pieces uniformly distributed along the front-back direction, adjacent vertical filler pieces form a basic heat exchange space, and the vertical filler pieces are perpendicular to the vertical baffles.

[0006] Further, a flow guide filler layer is arranged in the flow-through space or below the flow-through space, and the flow guide filler layer is connected with the top surface of the basic filler layer.

[0007] Further, the flow guide filler layer comprises a plurality of corrugated pieces symmetrically bonded.

[0008] Further, the height of the corrugated pieces is less than the height of the vertical baffles.

[0009] The utility model has the following beneficial technical effects:

[0010] The spraying pipe sprays in the limited space, avoids that water flow in the spraying area is taken away by air flow in a large amount to form a floating drop loss, and in addition, the basic filler layer can be partially water-passed, air and water directly contact and exchange heat to generate humid hot air flow in the water area, air flow does not contact water flow and absorbs part of heat to generate dry hot air flow in the waterless area, the humid hot air flow and the dry hot air flow are mixed to make the whole tower outlet air flow keep unsaturated state, and the generation of the cooling tower white smoke phenomenon is fundamentally inhibited, so that the environmental protection and water saving purposes are realized. BRIEF DESCRIPTION OF DRAWINGS

[0011] Fig. 1 It is a front view when the flow guide filler layer is located in the flow space in the embodiment of the utility model;

[0012] Fig. 2 It is a flow space plan view when the flow guide filler layer is located in the flow space in the embodiment of the utility model;

[0013] Fig. 3 It is a front view when the flow guide filler layer is located below the flow space in the embodiment of the utility model. DETAILED DESCRIPTION

[0014] The embodiment of the utility model will be further described in detail in combination with the drawings and the embodiment. The following embodiment is used for describing the utility model, but cannot be used to limit the scope of the utility model.

[0015] In the description of the utility model, unless otherwise specified, the meaning of "a plurality of" is two or more than two; the orientation or position relationship indicated by the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail" and the like is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed in a particular orientation and be operated, therefore, it cannot be understood as a limitation on the utility model. In the description of the utility model, it should be explained that, unless otherwise explicitly 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 ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0016] As Figs. 1-3As shown, the combination heat exchange device described in the embodiment includes a spray layer 1, a flow guide layer 2 and a base packing layer 3 arranged in sequence from top to bottom; the spray layer 1 includes a plurality of mutually parallel spray pipes 4 evenly distributed along the left-right direction, and the spray pipes 4 are covered with shell pieces 5; the flow guide layer 2 includes a plurality of mutually parallel vertical baffle pieces 6 evenly distributed along the left-right direction, and the adjacent vertical baffle pieces 6 have flow-through spaces communicating upward and downward, and part of the flow-through spaces are correspondingly provided with the spray pipes 4 above, and the vertical baffle pieces 6 on the left and right sides of this part of the flow-through spaces are close to, abut on or connected to the lower edges of the shell pieces 5 covering the outer surface of the spray pipes 4, and preferably, the number of the spray pipes 4 is half of the number of the flow-through spaces, and the flow guide packing layer is arranged in or below the flow-through spaces, and the flow guide packing layer is bonded to the top surface of the base packing layer, and the flow guide packing layer includes a plurality of corrugated pieces 7 symmetrically bonded, and the adjacent corrugated pieces form vertical holes, and the height of the corrugated pieces 7 is less than the height of the vertical baffle pieces 6;

[0017] The base packing layer 3 includes a plurality of mutually parallel vertical packing pieces evenly distributed along the front-rear direction, and the adjacent vertical packing pieces form base heat exchange spaces, and the base heat exchange spaces are also upward and downward communicating channels, and preferably, the upper side openings of the channels correspond to the lower side openings of the vertical holes between the corrugated pieces and are larger than the lower side openings of the vertical holes, and the vertical packing pieces are perpendicular to the vertical baffle pieces 6, and the vertical packing pieces, the vertical baffle pieces 6, the corrugated pieces 7 and the shell pieces 5 are made of the same material, which is PVC or stainless steel, and of course, other materials suitable for heat exchange of circulating water cooling can also be used.

[0018] The working principle of the embodiment is as follows:

[0019] The flow guide layer 2 and the flow guide packing layer are bonded and then fixed to the base packing layer 3, the shell pieces 5 are arranged on the spray pipes 4, and when the spray pipes 4 spray water, the water flows into part of the flow-through spaces under the action of the shell pieces 5 and the vertical baffle pieces 6 and flows downward to the base packing layer 3, so that part of the base heat exchange spaces has water flow and part of the base heat exchange spaces has no water flow, the water flow in the part with water flow directly contacts the air to exchange heat, generates wet hot air flow and discharges upward, the air in the part without water flow does not contact the water flow and absorbs part of the heat to generate dry hot air flow and discharges upward, and the wet hot air flow and the dry hot air flow are mixed to make the whole outlet tower air flow maintain an unsaturated state, thereby fundamentally inhibiting the generation of white smoke phenomenon of the cooling tower;

[0020] The corrugated pieces 7 in the flow-through spaces above which are not correspondingly provided with the spray pipes 4 can be used as water collectors, and the mixed air flow discharged by the base packing layer 3 is further subjected to the water collecting action of the corrugated pieces 7 when reaching the flow guide layer 2, thereby further reducing the water content of the outlet tower air flow;

[0021] Compared with the prior art, the spray pipes 4 in the embodiment spray in a limited space, which avoids the water flow in the spray area being taken away by the air flow in large amount to form dripping loss, thereby facilitating the realization of the purpose of environmental protection and water saving.

[0022] The embodiments of the present application are presented for purposes of illustration and description, and are not intended to be exhaustive or to limit the application to the precise form disclosed. Many modifications and variations are possible in light of the above teachings. It is intended that the embodiments be limited only by the claims. A specialized consideration and description of the embodiments are presented in order to provide a thorough and enabling disclosure of the present application, and to provide those skilled in the art with a complete patentable specification and concept of the application so that they can design and use various embodiments having various modifications in accordance with the principles of the application.

Claims

1. A combined heat exchange device, characterized in that, The system comprises, from top to bottom, a spray layer, a flow guiding layer, and a basic packing layer. The spray layer includes multiple parallel spray pipes evenly distributed in the left-right direction, each spray pipe being covered by a shell. The flow guiding layer includes multiple parallel vertical baffles evenly distributed in the left-right direction, with vertically connected flow spaces between adjacent vertical baffles, and the spray pipes correspondingly positioned above a portion of these flow spaces. The basic packing layer includes multiple parallel vertical packing plates evenly distributed in the front-back direction, with basic heat exchange spaces formed between adjacent vertical packing plates, and the vertical packing plates perpendicular to the vertical baffles.

2. The combined heat exchange device according to claim 1, characterized in that, A flow-guiding packing layer is provided inside or below the flow space, and the flow-guiding packing layer is connected to the top surface of the base packing layer.

3. The combined heat exchange device according to claim 2, characterized in that, The flow-guiding filler layer comprises multiple corrugated sheets symmetrically bonded together.

4. A combined heat exchange device according to claim 3, characterized in that, The height of the corrugated sheet is less than the height of the vertical baffle.

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