RU2211424C2 - Cooling tower sprinkler - Google Patents

Abstract

FIELD: power engineering; chemical industry; heat and mass-exchange equipment at direct contact between gas and liquid; industrial cooling towers for cooling circulating water. SUBSTANCE: proposed sprinkler is made in form of module consisting of layers of polymer screen cylindrical envelopes located in all horizontal layer in parallel relative to each other and welded over ends of module; filling elements located in all layers in inter-envelope space are made in form of polymer tubes welded over ends at area of contact with screen polymer envelopes of module; besides that, polymer screen envelopes forming horizontal layer may be located vertically either in parallel or perpendicularly relative to subsequent adjacent layer. EFFECT: improved quality of article; increased capacity of heat- exchange process. 2 cl, 2 dwg

Description

 The invention relates to energy and the chemical industry and can be used as an integral part of heat and mass transfer equipment with direct contact between gas and liquid, in particular in industrial cooling towers for cooling circulating water.

 Known sprinkler tower in the form of a module of layers of parallel perforated pipes of thermoplastic material, welded at the ends of the module with each other in contact, and the end sections of the pipes are made without perforation, and the cross section of the end section of the pipe is broadened relative to the cross section of the perforated pipe section [ RF patent 2141616, IPC F 28 F 25/00, cooling tower sprinkler / Samoilov G.A. and etc; claimed 11/11/1997; publ. 11/20/1999; BI 32].

 The disadvantage of this cooler sprinkler is that during operation, the perforated part of the pipes that make up the module contributes to the deposition of particles contained in the circulating water, becomes clogged and thereby increases the resistance of the module, reducing the productivity of the process.

 The closest technical solution to the proposed invention (prototype) is the cooling tower sprinkler in the form of a module made of layers of polymer cellular pipes, in which the pipes are cylindrical, placed in all layers parallel to each other and welded at the ends of the module between them in contact. Pipes in adjacent layers are staggered relative to each other [RF Patent 2141617, IPC F 28 F 25/08 / Bykovets V.P. and etc.; claimed 08/18/97; published on November 20, 1999, BI 32].

 The main drawback of the design is the low rigidity at the ends of the module, due to the possibility of lack of penetration at the points of contact of the polymer cellular pipes. The indicated drawback leads to deformation of the modules during operation, destruction of the structure, as a result of which the technical and operational characteristics of heat-exchange plants are reduced, and the process productivity is reduced.

 The invention solves the problem of improving the quality of the product and increasing the productivity of the heat and mass transfer process.

 This problem is solved due to the fact that the cooling tower sprinkler is made in the form of a module from layers of polymer mesh shells made of cylindrical, placed in all horizontal layers parallel to each other and welded at the ends of the module between each other, in all layers, in the intershell space are located filling elements made in the form of polymer tubes welded at the ends in contact with the polymer mesh shell of the module. Also, vertically, the polymer mesh shells constituting the horizontal layer can be either parallel or perpendicular to the polymer mesh shells of the subsequent adjacent layer.

 Figure 1 shows the sprinkler of the cooling tower with parallel placement of the mesh shells in the layers vertically (axonometry).

 Figure 2 shows the sprinkler of the cooling tower with the perpendicular placement of the mesh shells in adjacent layers vertically (axonometry).

 The cooling tower sprinkler is made in the form of a module of polymer mesh shells 1 that make up the horizontal layers 2. Filling elements 3 made in the form of polymer tubes are placed in the inter-shell space to increase the rigidity of the structure, as well as to supply additional material to the welding site 4.

 Depending on the viscosity of the medium, in order to increase the contact surface, as well as to ensure uniform flow, vertically the polymer mesh shells 1 that make up the horizontal layers 2 can be either parallel or perpendicular to the next adjacent layer.

 The sprinkler of the cooling tower operates as follows.

 Recycled water or other liquid medium is supplied to the sprinkler of the cooling tower and, under the influence of mass forces, passes through it, flowing in a thin stream along the polymer components of the mesh shells. Thus, an optimal heat and mass transfer regime is achieved. The design of the mesh shell and cooling tower sprinkler as a whole ensures uniform flow distribution over the module volume, and prevents droplet formation. As a result, the productivity of the heat and mass transfer process is increased.

 The use of filling elements can significantly increase the rigidity of the design of the sprinkler of the tower, prevents it from deformation and destruction, thereby improving the quality of the product and its operational characteristics.

 The mesh shell and filling elements are made by extrusion from polymeric materials or compositions based on them, the choice of which is determined by the technological parameters of the process and the physicochemical properties of the working medium.

The main advantages of the proposed design of the tower sprinkler include the following:
- ease of manufacture and reliability;
- increased structural strength due to the use of filling elements;
- lack of need for the use of hoisting mechanisms during installation;
- the possibility of mechanical processing of the module, in order to give the necessary shape (tetrahedron, segment, etc.) due to the increased strength;
- high dispersing ability, without droplet formation, for liquids with a wide range of viscosity;
- high productivity and manufacturing efficiency due to the use of continuous extrusion.

 The invention meets the criterion of "industrial applicability" and can be used in the energy and chemical industries as an integral part of heat and mass transfer equipment with direct contact between gas and liquid, in particular in industrial cooling towers for cooling circulating water.

Claims (2)

 1. The sprinkler of the cooling tower in the form of a module made of layers of polymer mesh shells made of cylindrical placed in all horizontal layers parallel to each other and welded at the ends of the module between them in contact, characterized in that filling elements are located in all layers in the intershell space, made in the form of polymer tubes welded at the ends in contact with the polymer mesh shells of the module.  2. The cooling tower sprinkler according to claim 1, characterized in that the vertical polymer mesh shells constituting the horizontal layer are either parallel or perpendicular to the polymer mesh shells of the subsequent adjacent layer.

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