Patent Application
20110094260
a) Field of the Invention
The present invention relates to a roller evaporator for a snow machine, and more particularly to a roller evaporator for a snow machine, which is used to make snow and is provided with an extremely good sealing effect.
b) Description of the Prior Art
A so-called snow machine is used to make snow and an ordinary snow machine includes a compressor and a roller evaporator which is connected to the compressor through a low pressure tube and a high pressure tube, respectively. In the existing technology, the roller of an ordinary evaporator is one-layered, and refrigerant is sent into the roller by the high pressure tube and is then exported by the low pressure tube; whereas, the roller rotates around the high pressure tube and the low pressure tube (which are fixed). The roller, the high pressure tube and the low pressure tube are sealed by sealing washers; however, as pressure in the high pressure tube is very high, the sealing washers cannot be sealed tightly, such that the refrigerant can easily leak out during making ice.
Accordingly, how to solve the aforementioned issues and shortcomings of the prior art is a direction of research and development for improvement by the present inventor and related vendors.
The primary object of the present invention is to provide a roller evaporator for a snow machine, wherein the roller evaporator includes an inner layer and an outer layer. The inner layer is fixed on a high pressure tube and a low pressure tube, the outer layer rotates relatively with respect to the inner layer, and thermal grease is filled between the inner layer and the outer layer. Moreover, two ports of the outer layer are transfixed with sealing washers which are connected respectively with the lower pressure tube and the high pressure tube, and two sides of the sealing washers are provided respectively with a bearing. When refrigerant is ejected out from nozzles of the high pressure tube, a roller of the outer layer can rotate relatively with respect to an evaporation tank of the inner layer and a rotation speed can be increased that the refrigerant does not leak out. By the aforementioned technologies, the issues existing in the conventional snow machine that the pressure in the high pressure tube is very high and the sealing washers cannot be sealed tightly, which results in that the refrigerant can leak out easily when making the ice, can be solved, thereby achieving the practical progressiveness of the good sealing effect and of that the refrigerant does not leak out easily during making the ice, by separating the roller of the roller evaporator into two layers and installing and sealing the inner layer on the high pressure tube.
To enable a further understanding of the said objectives and the technological methods of the invention herein, the brief description of the drawings below is followed by the detailed description of the preferred embodiments.
Referring to
An outer side of the roller evaporator 120 is installed with a scraper 117 which is used to scrape ice formed on an outer surface of a roller 125 of an outer layer. A lower side of the roller evaporator 120 is also provided with a water box 116 which contains water, and the water in the water box 116 is turned into ice by rotation of the roller evaporator 120. Referring to
In the present embodiment, for quickly transmitting coldness in the roller evaporator 120 to the outer surface of the outer layer of the roller 125, thermal grease 130 is filled between the evaporation tank 126 of the inner layer and the roller 125 of the outer layer.
The roller evaporator 120 provided by the present embodiment is divided into the inner layer and the outer layer. The evaporation tank 126 of the inner layer is fixed on the high pressure tube 102 and the low pressure tube 101, or can be fixed by welding. The thermal grease 130 is provided between the roller 125 of the outer layer and the evaporation tank 126 of the inner layer, is not provided with any pressure and can be simply sealed by the sealing washers 121, 122. Besides, the refrigerant 124 is ejected out from nozzles 123 of the high pressure tube 102, the roller 125 of the outer layer can rotate relatively with respect to the evaporation tank 126 of the inner layer and a rotation speed can be increased that the refrigerant 124 does not leak out.
Referring to all the drawings, the present invention is actually provided with following advantages when compared with the prior art.
The thermal grease 130 is provided between the roller 125 of the outer layer and the evaporation tank 126 of the inner layer, is not provided with any pressure and can be simply sealed by the sealing washers 121, 122. In addition, the refrigerant 124 is ejected out from the nozzles 123 of the high pressure tube 102, the roller 125 of the outer layer rotates relatively with respect to the evaporation tank 126 of the inner layer and the rotation speed can be increased that the refrigerant 124 does not leak out.
It is of course to be understood that the embodiments described herein is merely illustrative of the principles of the invention and that a wide variety of modifications thereto may be effected by persons skilled in the art without departing from the spirit and scope of the invention as set forth in the following claims.
