CN2196136Y

CN2196136Y - Rail quick cooler

Info

Publication number: CN2196136Y
Application number: CN 94240940
Authority: CN
Inventors: 胥金荣; 郭善辛; 郑玉常; 李希海; 李锡章
Original assignee: TAI-AN RAIL MAINTAINING DEPOT JI-NAN BRANCH OF RAILWAY BUREAU; Science And Technology Institute Jinan Railway Administration
Current assignee: TAI-AN RAIL MAINTAINING DEPOT JI-NAN BRANCH OF RAILWAY BUREAU; Science And Technology Institute Jinan Railway Administration
Priority date: 1994-07-15
Filing date: 1994-07-15
Publication date: 1995-05-03
Anticipated expiration: 2004-07-15

Abstract

The utility model relates to a rail quick cooler which is a cooling device for quickly reducing the rail temperature of rails used in the railway line in atmospheric environment in the summer. The utility model is combined by a refrigerator, a liquid carbon dioxide storing tank, a pipeline and a wide guiding cylinder. The appearance of the refrigerator is in an oblong shape, and the cross section is an n-shaped groove. The inner lower side of the n-shaped groove is closely attached to the upper plane of the rail bottom of rails, and a fully enclosed cooling hollow cavity is formed. The requirement of quickly reducing the rail temperature of rails can be achieved. The utility model has the advantages of simple and convenient use, no limitation of the position of the railway line, etc.

Description

Rail quick cooler

The rail flash cooler is to make the rail of rail track in using, and reduces a kind of cooling unit of rail temperature in the atmospheric environment rapidly in summer.

At present, to reduce rail rail temperature be that adopting waters falls the rail warm therapy, promptly lays burlap in the seamless railway circuit location of needs cooling, and rail is covered, and waters on burlap according to worker's rule predetermining of being engaged in to the railway gapless track.This method falling temperature method efficient is extremely low, is difficult to reach the requirement of rapid recovery railway track normal condition, has influenced normal railway transportation production.And it is very difficult to seek sources of water at railway track, and this kind cool-down method also is difficult to implement.

The purpose of this utility model is exactly a kind of device that the rail that uses on the railway track can be cooled off fast of design, this device refrigerating speed is fast, can reduce rail rail temperature rapidly, reduce rail internal stress, the expansion rail track that prevents that railway track invar rail internal stress is big and produce, and there is use simple, convenient, can be subjected to the restriction of railway track position.

The rail flash cooler is to be constituted by refrigerator 1, liquid CO 2 storage tank 2, pipeline 3 and ventilating duct 9, the outward appearance of refrigerator 1 is rectangle, section is " Jiong " type groove, its " Jiong " type groove is divided into inside and outside two-layer, skin is an isolation layer 5, internal layer is refrigeration cave 4, and the two ends of refrigerator connect ventilating duct 9 respectively, makes the carbon dioxide after the refrigeration enter atmosphere through ventilating duct 9.When rail need be lowered the temperature, refrigerator 1 and ventilating duct 9 are pressed rail length direction buckle closure plane on the flange of rail of rail 6, make it form totally enclosed refrigeration cavity.

Now utilize the example in the accompanying drawing, the rail flash cooler is done a detailed description.

Fig. 1 is the schematic diagram of rail flash cooler

Fig. 2 is the refrigerator cross-section structure in the rail flash cooler

The rail flash cooler as shown in Figure 1.Refrigerator 1 is communicated with liquid CO 2 storage tank 2 through pipeline 3, is provided with a by-pass valve control 7 in pipeline 3.The two ends of refrigerator 1 connect ventilating duct 9 respectively, make the carbon dioxide after the refrigeration enter atmosphere through ventilating duct 9.The outward appearance of refrigerator is rectangle, and length is best for 1.5～3 meters, and section is " Jiong " type groove, and its " Jiong " type groove is divided into inside and outside two-layer, and skin is an isolation layer 5, and heat-barrier material is equipped with in its space, is airtight shape.Internal layer is refrigeration cave 4.There is a circular hole at the end face center in refrigeration cave 4, connecting pipe 3, " Jiong " type groove inwall drift angle place in refrigeration cave 4 is evenly distributed with 6 3～5 millimeters aperture 8, in 6 uniform small pores 8 entered the sealed refrigeration cavity that cooler 1 and rail 6 form, the ventilating duct 9 through two ends entered atmosphere to carbon dioxide then by refrigeration cave 4.

Rail on railway track is too high in the summer environment temperature, rail internal stress strengthens when needing cooling, the rail flash cooler is placed on the rail, valve 7 in the opening conduits 3, carbon dioxide flows into the refrigeration cave 4 in the refrigerator 1, carry out freezing after thermodynamics expands at this, make refrigeration cave 4 low temperature environment occur.Carbon dioxide after the expansion and then enters atmosphere through ventilating duct 9 in aperture 8 enters the sealed refrigeration cavity that cooler 1 and rail 6 form.Mode by conduction, radiation and convection current between rail and refrigeration cave descends rail temperature rapidly.

The rail flash cooler can reach the requirement of rapid reduction rail rail temperature, generally in half an hour, reduce more than rail rail temperature 10 degree, reduced rail internal stress, the expansion rail track accident that prevents the too high internal stress of railway track invar rail temperature from increasing and produce, influencing the railway normal transport produces, it is simple, convenient that this cooler also has use, is not subjected to the advantages such as restriction of railway track position, for the runway that solves the bloated rail of rail provides a kind of quickly cooling device.

Claims

1, a kind of rail flash cooler that reduces rail rail temperature, it mainly is made up of refrigerator 1, liquid CO 2 storage tank 2, pipeline 3 and ventilating duct 9, it is characterized in that refrigerator 1 is communicated with liquid CO 2 storage tank 2 through pipeline 3, in pipeline 3, be provided with a by-pass valve control 7, the two ends of refrigerator 1 connect wind-guiding case 9 respectively, the outward appearance of refrigerator 1 is rectangle, and section is " ㄇ " type groove, and its " ㄇ " type groove is divided into inside and outside two-layer.

2, rail flash cooler according to claim 1 is characterized in that the length of refrigerator 1 is the best for 1.5～3 meters, the outer inner insulating layer 5 of its " Jiong " type groove, heat-barrier material is equipped with in the space, be airtight shape, internal layer has a circular hole connecting pipe 3 for refrigeration cave 4, the end face center in refrigeration cave 4.

3, rail flash cooler according to claim 1 is characterized in that the refrigeration cave 4 in the refrigerator 1, and " Jiong " type groove inwall drift angle place is evenly distributed with 63 millimeters～5 millimeters aperture 8.

4, according to the described rail flash cooler of claim 1, it is characterized in that the head of refrigerator 1 buckle closure rail 6, the interior bottom of its " Jiong " type groove closely connected on the flange of rail of rail the plane, form totally enclosed refrigeration cavity.