SU1726962A1 - Loose materials cooler - Google Patents

Description

(21) 4811383/06 (22) 09.04.90 (46) 04.15.92.Byul. No. 14 (71) Kiev Polytechnic Institute named after 50th anniversary of Great October Oct. Brno Socialist Revolution (72) M, K, Bezrodny, Yu. V.Antoshko, L.E. Yushina and V.M. Podgoretsky (53) 621.565.58 (088.8) (56) USSR Author's Certificate Ns 1134881, cl. F28D 19/02, 1985. USSR Copyright Certificate fsfe 1268932, cl. F 28 D 15/02, 1986. (54) COOLER LOOSE MATERIALS. 2

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 S oo o (57) Usage: in industrial heat engineering installations as heat utilizers. SUMMARY OF THE INVENTION: the cooler contains a central hot and two side chambers 1.2. They are connected by heat pipes. The latter are installed in the side walls of the chamber 1 with the formation of shelves and the possibility of rotation and contact of their sections with the walls of the chamber 1. The heat pipe bodies are made curved and have inclined sections in the evaporation and condensation zones. These areas are connected by transition areas. The latter are located in the hot chamber 1. The sloping areas of the condensation zones are equipped with counterweights. 1 hp f-ly, 1il.

The invention relates to heat exchange engineering and can be used as heat utilization devices in industrial heat and heat installations.

Heat exchangers are known that use granular material as an intermediate heat carrier, containing a gas duct with a cascade of inclined shelves connected in a closed loop with a pneumatic conveying line.

The disadvantages of such devices - the complexity and, therefore, low reliability.

A heat exchanger is known that uses heat pipes as heat transfer elements.

The closest to the invention according to the technical essence is a cooler of granular material containing central hot and side cold chambers and using heat pipes as heat transfer elements, the longitudinally silver evaporation zones of which form cascades of solid fixed inclined shelves installed in the hot chamber. in which the granular material (slag) is poured.

When moving along the heat exchange surfaces of the inclined shelves, the granular material is cooled, and the heat of the material is utilized. However, when operating the described device, there is a danger of hot granular material sticking to the heat exchange surfaces, which can lead to complete slagging of the heat exchange surfaces, and ultimately to the cooler itself, which reduces the reliability of the device to cutting.

The purpose of the invention is to improve the reliability of the cooler bulk materials.

The goal is achieved by installing inclined shelves of heat pipes on the axes located in the side walls of the hot chamber with the possibility of rotation; the arrangement of the inclined sections of the evaporation and condensation zones of the heat pipes in parallel and their connection with the transition sections at an obtuse angle with the possibility of contact of the transition sections with the chamber walls; installing counterweights on sloping areas of condensation zones.

The drawing shows the proposed cooler bulk materials.

The cooler consists of a vertical central hot chamber 1 and two lateral cold chambers 2 installed on both sides of the hot chamber 1. In the side walls 3 of the hot chamber 1 on axes 5 are installed with the possibility of rotation of a series of heat pipes to form in hot camera 1 inclined shelves. Housing each

the heat pipe is made curved and has, in zones 4 of evaporation and condensation b, inclined sections connected by a transition section 8 located in the hot

chamber 1, the inclined sections of the evaporation zones 4 and condensation 6 of each heat pipe are arranged in parallel and connected to the transition section 8 at an obtuse angle sufficient to move the shelf to

contact with the wall 3 of the hot chamber 1 when rotating on the axes x 5; the zones 6 of the condensation of heat pipes, located in the side chambers 2, are provided with transverse fins and a counterweight 7.

The device works as follows.

The hot bulk material enters the upper part of the vertical hot chamber 1 at the cascades of inclined shelves from zones 4

evaporation of heat pipes. After pouring down the shelves under its own weight, the bulk material transfers heat to the evaporation zones of the heat pipes, which are transferred to the cooling air in the cold chambers by the condensation zones b of the heat pipes. The fins of the condensation zones allows the heat exchange surface to develop, i.e. . reduce the dimensions of cold chambers 2.

In the case of sticking hot loose

material on inclined shelves is accumulated to a certain critical amount, determined by the mass of counterweights 7, installed on zones b of heat pipe condensation. When reaching the amount of bulk material on an inclined shelf above the critical one, when rotating on axis 5, the inclined shelf moves under the influence of excess weight of the material before contact with the wall 3 of the hot chamber 1. At the moment of contact with the wall 3, the bulk material is subjected to additional shear stress and is dropped following along the shelf. Under the action of the counterweight 7, the shelf released from the discarded material returns to its original position and the process of cooling the material continues. By varying the weight of the counterweight 7, it is possible to change the mode of operation of the cooler bulk materials.

In order to protect the walls against damage, 8 contact points of the inclined shelves with the wall 3 of the hot chamber 1 can be fitted with additional stops of any known construction. If necessary, to eliminate the flow of dust and gases from the bulk material from chamber 1 to chamber 2, any of the known seals (ball, sector or other) are installed in the places where heat pipes are installed on walls J.

Claims (2)

The proposed cooler has a higher reliability than the prototype of the SG due to self-cleaning of the heat exchange surfaces of the inclined shelves during oscillatory movements of the latter, which ultimately reduces the maintenance time of the device and the staff. Claim 1. Bulk material cooler containing central hot and side cold chambers connected by heat pipes installed in the side walls of the hot chamber to form in the last shelves, while the body each heat pipe is made and has inclined parts in the zpn, xyp and coidomgation of the sloped areas of the connecting section of the transition section, located and the hot chamber, differing from each other. what. In order to increase the reliability of the HI, the clone sections of the evaporation and condensation zones of each heat pipe are arranged in parallel and connected to the persistent section at an obtuse angle, with heat pipes installed in the walls of the said chamber with the possibility of rotation and contact of the transition sections with these walls . 2. Cooler according to claim 1, of tl and h aa w and so that the inclined sections of the air-conditioning zones are equipped with counterweights