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Snow canon and method for operating the same

A technology for snowmaking and pumping, applied in application, ice making, snow surface cleaning, etc., which can solve problems such as energy consumption, noise, and inability to guarantee functional capability/reliability

Inactive Publication Date: 2005-03-30
NIVIS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This causes additional significant energy consumption
Compressors increase manufacturing costs, require maintenance and create noise
Also, especially at low temperatures, functional capability / reliability is often not guaranteed

Method used

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  • Snow canon and method for operating the same
  • Snow canon and method for operating the same
  • Snow canon and method for operating the same

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Experimental program
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Embodiment Construction

[0038] exist figure 1 In the schematic diagram of FIG. 2 , the main elements of a snowmaking device with a jet pump 10 and a plurality of water-air nozzles 12 are shown. The jet pump 10 is formed in a manner known per se with a drive nozzle 14 and a pump line 16 , wherein the pump line 16 has a suction nozzle 18 , a mixing chamber 20 and a diffuser 22 . In the exemplary embodiment described here, the drive nozzle 14 has a circular nozzle opening with a diameter of, for example, 4 mm or 5 mm. In the exemplary embodiment, the suction nozzle 18 is designed as a hole with a diameter of 12 mm in the pump tube 16 , while the mixing chamber 20 is here a mixing tube with a constant cross section. In some embodiments of the jet pump 10 a swirl body (not shown) is arranged in the drive nozzle 14 .

[0039] When the snowmaking device is in operation, water W with a pressure of about 25-40 bar or higher is delivered to the jet pump 10 through a pressure line (not shown). This water W i...

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PUM

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Abstract

The invention relates to a snow canon comprising at least one water / air nozzle (12, 12') for ejecting a water / air mixture (M). The inventive snow canon is developed in such a way that it comprises at least one jet pump (10, 10', 10'') which is operated by means of water (W) as a driving medium, and mixes the air (A) with the water (W) and compresses the air in order to form the water / air mixture (M) which is supplied to the at least one water / air nozzle (12, 12'). The invention also relates to a corresponding method for operating one such snow canon. The invention enables unused energy which is converted into heat in snow canons according to prior art, to be used in a particularly effective manner.

Description

technical field [0001] The invention relates to a snowmaking device according to the preamble of claim 1 and to a method for operating the snowmaking device. Background technique [0002] Snowmaking devices (so-called "snow cannons") of various configurations are used in the field of winter sports. DE19627586A1 gives an overview of known constructions of snowmaking devices. In particular, ground-level high pressure guns, lance (mast) high pressure guns and low pressure guns with thrusters are mentioned here. [0003] High pressure cannons close to the ground use compressed air to create a water-air mist that is expelled at high velocity in order to obtain the desired spread width and effective / active cooling through rapid air expansion. It requires a considerable amount of compressed air. Usually a central compressor is provided for several guns, the compressor having a power of eg 15-20 kW per gun. [0004] In the spear gun, the water-air nozzles are arranged at a heigh...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F25C3/04
CPCF25C3/04F25C2303/046F25C2303/0481E01H5/00
Inventor W·斯多夫内尔
Owner NIVIS