RU166480U1 - JET FILM COOLING COOLER - Google Patents

Abstract

An inkjet-film cooling tower containing a central pipe, a water distribution system, a catchment basin, plates, wind baffles located on the end side of the plates along the entire height, characterized in that on the surface of each plate on both sides there are petals in the form of circular segments equally bent so so that the cross section is directed towards the flow of water flowing down.

Description

This utility model relates to the field of energy and is intended for carrying out heat and mass transfer processes, in particular for cooling circulating water that removes heat from heat exchangers.

A well-known tower cooling tower, including a tower in the form of a truncated pyramid or a hyperboloid of rotations, the mouth of which ends with an upper stiffness ring with a railing on the outside and inside of the tower [see patent RU 2554370, ЕНН 5/12, F28C 1/00, 2013]. Around the perimeter of the mouth of the tower on the plane of the upper stiffening ring there is a wind-guiding sectional device, forming a continuous surface from one-on-one dissecting and directing atmospheric air wing-plates located in height above each other.

The disadvantage of a tower cooling tower is the uneven distribution of liquid, low mass transfer coefficient.

Known tower evaporative cooling tower with external heat exchange, containing an exhaust tower with air intake windows at its base, a drainage basin, a water distribution system and an irrigation device, as well as air shields located outside the exhaust tower under the fragility to the radius of the base of the tower [see patent RU 2527799, F28C 1/00, F28F 25/00, 2014]. The water distribution system and the irrigation device are brought out of the exhaust tower and are covered by a roof located above the air inlet windows, and a base with a slope towards the drainage basin is created from below. The water distribution system is located under the roof above the air intake windows and is made in the form of an annular pipe with nozzles on which water sprinklers are installed.

The irrigation device is made in the form of air guide shields located outside the exhaust tower at an angle to the radius of the base of the tower.

The disadvantage of this device is the insufficient air flow through the tower evaporative cooling tower.

The closest in technical essence and the achieved result is a cooling tower [see patent RU 2045727, F28C 1/00, 1995], comprising a polygonal cross-section housing, tiers of air inlet windows with inclined guide plates with hinges, plates, additional plates with vertical sections inside the housing, a manifold with nozzles, a vertical shield with a sheet of cellular structure. Under the shield there is a water collector with a down pipe, on the lower part of which a collector with nozzles is installed in the window.

The disadvantage of this cooling tower is the large number of nozzles for spraying liquids, the operation of which requires high pressure, the presence of a large number of nozzles, contributes to the deposition of contaminants on the surface of such elements, their clogging and reduce operating efficiency.

The task to which the claimed utility model is directed is to develop an inkjet-film cooling tower, in which the disadvantages of analogues and prototype are eliminated.

The technical result is to increase the efficiency of the heat and mass transfer process by increasing the specific surface area of the contact phase and the coefficients of heat and mass transfer.

The technical result is achieved by the fact that in an inkjet-film cooling tower containing a central pipe, a water distribution system, a catchment basin, plates, wind partitions located on the end side of the plates along the entire height, according to the present utility model, the petals are made on the surface of each plate on both sides in the form of circular segments, equally bent so that the flow area is directed towards the flow of water flowing down.

The essence of the utility model is illustrated by the following drawings:

- in FIG. 1 schematically shows an inkjet-film cooling tower;

- in FIG. 2 is a cross section AA of an inkjet-film cooling tower;

- in FIG. 3 is a view of a longitudinal section of a BB plate with petals of an ink-film cooling tower;

- in FIG. 4 is a cross-sectional view BB of a water distribution system of an ink-film cooling tower.

In the figures, the elements are indicated by the following positions:

1 - the central pipe;

2 - water distribution system;

3 - plates;

4 - drainage basin;

5 - wind partitions;

6 - petals.

The inkjet-film cooling tower consists of a central pipe 1, which is the apparatus body and its supporting structure, a water distribution system 2, plates 3, a drainage basin 4, wind partitions 5 located on the end side of the plates 3 along the entire height (Fig. 1). The water distribution system 2 is adjacent to the central pipe 1 along a tangent to a circle inscribed in its base, perpendicular to the radius of the pipe 1, has a perforation along the entire length from below to distribute water across the plates 3.

The difference of the proposed inkjet-film cooling tower is that on the surface of each plate 3 on both sides there are petals 6 in the form of circular segments equally bent so that the flow section is directed towards the flow of water flowing down (Fig. 2, Fig. 3, Fig. 4).

The proposed inkjet-film cooling tower operates as follows.

Water through the central pipe 1 is supplied to the apparatus for cooling. The flow through the pipe occurs in a bottom-up direction. Then, reaching the top of the pipe 1, water enters the water distribution system 2 and, spreading through it, tends to flow down through the holes through the surface of the plates 3 with petals 6. When water jets move along the surface of the vertical plates 3, it is distributed with the formation of a stable film flow. In this case, the flowing film of water is in contact with the flow of ambient air. Moreover, the resulting film is destroyed, reaching the petals 6, while creating a developed constantly updated surface. The petals 6 maintain a uniform flow of the water film over the cross section and direct water on different sides of the plate 3, in order to increase the mass transfer coefficient and the specific surface area of the phase contact. Cooled water from the plates 3 flows into the catchment basin 4. On the end side of the plates 3 along the entire height there are wind partitions 5, which prevent the entrainment of water by the air flow from the contact zone and create the air structure necessary for the water cooling process. In addition, partitions 5 increase the rigidity of the apparatus.

In the proposed inkjet-film cooling tower in comparison with the prototype provides a more efficient cooling of the water by installing intensifying elements in the form of plates 3 with petals 6.

Thus, an increase in the specific surface area of the contact of phases and the coefficients of heat and mass transfer in the proposed jet-film cooling tower leads to an increase in the overall efficiency of heat and mass transfer processes.

Claims (1)

An inkjet-film cooling tower containing a central pipe, a water distribution system, a catchment basin, plates, wind partitions located on the end side of the plates along the entire height, characterized in that on the surface of each plate on both sides there are petals in the form of circular segments equally bent so so that the cross section is directed towards the flow of water flowing down.

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