RU2532928C2 - Steam heater - Google Patents

Abstract

FIELD: personal use articles.

SUBSTANCE: invention relates to devices intended for satisfaction of man's vital needs. Proposed is a method for heating tourist tents and other spaces with campfire heat transmitted into the tent by way of water steam. The design represents a slanted metal tube (3) with a dead bottom end to be placed into campfire flame (4) and a heat exchanger made of polymer material (2) at the other end positioned inside the tent (1). The tube is made as a single piece or composed of sections tightly connected to each other; its dead end is placed into the campfire flame and contains a small quantity of water (5) filling the heated tube part. The other end is connected to the heat exchanger and placed inside the tent. The tube length must be sufficient to ensure fire safety; the tube is placed at a small angle relative to the horizontal. The heat exchanger is made of 0.3-0.5 mm polymer material (PE, PVB, PUR etc.) in the form of a monolayer or reinforced with textile. The heat exchanger is a bag of rectangular or other shape with fittings for attachment to the tent frame in the top part and a hole for tight connection to the tube in the bottom part. For a 2-4-men tent, the heat exchanger sizes are determined by the tent wall size and may be equal to 1-3 m (length) and 0.8-1 m (width/height). The heat exchanger must be installed in the tent so that to ensure free drain of condensate back into the tube.

EFFECT: improved heating.

1 dwg

Description

A steam heater belongs to the field of satisfying human needs and is intended for heating camping tents and other premises with an external heat source.

Known methods of space heating in the field are:

1. Internal heating using a stove or open flame (primus, gas), which does not meet safety regulations.

2. External heating, for example, direct heating with a fire, which requires a large consumption of firewood and leads to inevitable damage to the tent with sparks.

Closest to the claimed method of heating is described in US Pat. RU 2257451 C1 2005 07 27 a method for external heating of tents with thermal radiation (bonfire, sun). According to the specified prototype, the tent in its design contains two layers: one - well transmitting thermal radiation and the second - well reflecting it. Both layers are located in the tent so that the radiation penetrating through the transparent layer is reflected by the other layer into the room and heats it. However, it is not always possible to use the sun as a heat source, and direct heating with a bonfire at close range is fire hazardous, and from a long distance is ineffective. In addition, heating with a fire inevitably leads to damage to the tent tent with sparks. A very significant drawback of this method is the need to use tents of a special design, which drastically reduces its applicability.

The principle of operation of a steam heater

Water located in the lower blind end of the inclined metal pipe is heated by a fire and boils, steam enters the heat exchanger through the pipe, where it condenses, heating the tent, and returns back to the pipe. In this case, the heat exchanger has a surface temperature of 60-70 ° C, which, given the small thickness and thermal conductivity of the material from which it is made, cannot cause burns when touched. To maintain the temperature of the heat exchanger within the specified limits, a small fire is sufficient, on which, in addition, it is possible to cook food at the same time.

This device is illustrated in the drawing, on which:

1 - tent

2 - heat exchanger

3 - inclined metal pipe

4 - heat source

5 - water.

In addition, several pipes can be placed in one heat source, which will heat several rooms.

Technical result

When experimentally testing this heating method for a two-layer NORMAL tent (floor area 1.6 × 2 m and height 1.2 m) using a 1 × 1 m polyethylene heat exchanger placed between the tent and the inner layer of the tent and pipe with a diameter of 50 mm and 2 m long, the temperature inside the tent without people was obtained at a height of 20 cm from the floor + 40 ° C at an outside temperature of + 10 ° C. The volume of circulating water is 250 ml.

This technical result is achieved by using an inclined metal pipe, the blind end of which is filled with water and heated by an external heat source, due to which steam forms through the pipe into a hermetically connected heat exchanger made of polymer material in which it condenses and returns back to the pipe.

Thus, the proposed method of steam heating the tents has the following advantages:

1. High heating efficiency.

2. Low fire hazard.

3. The ability to use any type of tent without prior modification.

4. The ability to heat several rooms from one heat source.

This invention solves the problem of heating any tourist stalls, stalls and summer cottages, as well as during rescue and other work.

Claims (1)

A heater for camping tents and other premises with an external heat source, containing an inclined metal pipe with a blind lower end and a polymer film heat exchanger located on the other end of the pipe, characterized in that the heating is carried by the heat carrier - water vapor, which is formed by boiling water in the lower end of the pipe located in the area of the heat source.