RU2771366C1 - Device for placing heated hookah coals (options) - Google Patents

Abstract

FIELD: smoking mixture heating.SUBSTANCE: invention relates to equipment for heating the smoking mixture with hookah coals. A device for placing heated hookah coals is a container with a bottom for placing heated hookah coals and a side wall extending from the bottom, in which through holes are made for supplying air from the external environment into the container, as well as a hollow riser in the form of a tube fixed in the center of the bottom and the cavity of which is communicated with the hole in the bottom to bring out the heat flow from the heated coals. The bottom is made of two plates located at a distance from each other, the first of which is connected directly with the side wall of the container, and the second, located inside the container and made with a diameter smaller than the diameter of the side wall along its inner surface, is fixed on the first with the formation of a cavity closed on the sides communicated with the external environment through holes in the first plate, made along its periphery. Through holes in the side wall are made at or below the level of the surface of the second plate, on which protrusions are made for local support of hookah coals, and in the center there is a hollow riser in the form of a tube, the cavity of which through the hole in the second plate communicates with the cavity between the first and second plates.EFFECT: improving the heat transfer properties of the device for regulating the heat of hookah coals.6 cl, 8 dwg

Description

The invention relates to technological equipment for heating tobacco with hookah coals.

In particular, the invention considers the design of a device for regulating the heat of hookah coals or a device for controlled heating of a hookah mixture. Such devices are called kaloud (cloud), heat keeper (Heat Keeper), hotkeeper, alpha hook (Alpha Hookah), block, head - a device in which red-hot coals are placed, the heat from which heats the tobacco or smoking mixture in the hookah bowl. The device is used not only to place heated hookah coals over a chilim (a cup of tobacco), but also to control the amount of heat emanating from these coals towards a chilim filled with tobacco or smoking mixture.

This device, as a rule, consists of a container and a lid, which is regulated by a handle and can be slightly opened. Heated coal is placed inside the container, and the device is placed on the cup. Its peculiarity is that there is no need to obtain complete tightness. Such designs are described, for example, in RU 171519, US 8459269, 9237770. This device has the advantageous advantages of:

- made of metal, heats up quickly and cools down quickly (it is worth immersing it in cold water and after a couple of seconds it cools down);

- the material does not burn through, is intended for long-term repeated use;

- holds the required amount of coal (2-4 pieces);

- during smoking, you can remove it and cool the tobacco in case of fire;

- the cover allows to control heat and to avoid burning of tobacco;

- due to the fact that coal does not directly affect tobacco, the amount of carbon monoxide decreases.

Thus, a device for placing heated hookah coals is known, which is a container having a flat solid bottom, from which a side wall departs, in which holes are made at a level above the bottom for fresh air to enter the cavity of the container, in the central part of the bottom, perpendicular to the bottom wall, a hollow a riser in the form of a hollow tube, the entrance to which is located above the level of the hookah coals to prevent ash from entering the riser channel, and the exit from which is made at the bottom to remove the heat flow from the tank when the hookah coals are burned in the direction of the cup with tobacco or smoking mixture ( US 2017325499, A24F1/30, A24F1/32, F28F21/08, published 11/16/2017).

Alternatively, the container can be closed with a lid used to prevent the emission of sparks and suspended ash and to regulate the ventilation of the hookah coal combustion zone. From the inside, the surface of the cover can be made ribbed to control the direction of heated flows and flows of incoming air

This decision is accepted as a prototype for both declared objects.

Heating the tobacco or smoking mixture in the chilim determines the quality of the smoke inhaled by the consumer. Three temperature points can be distinguished in different areas of tobacco in chilim. The first point is the outer contact surface of tobacco with heat from coals, the heating temperature reaches 350-400 ° C (at the moment of puffing). The second point is the temperature inside the tobacco in the container under the outer surface layer, the temperature is 200-240°C. The third point is the middle layer of the tobacco itself, the constant temperature "in cruising mode" is 100-105°C.

In fact, tobacco does not burn in a hookah bowl, and when heated, only moisture evaporates from the syrup. All dense steam is obtained precisely by evaporation, and not by combustion. Given this, there are some important points related to temperature.

The level of smokiness depends on the content of glycerin in tobacco, it begins to evaporate at about 100 ° C. In all modern tobaccos, this component is sufficient, and at the right level of heat, they will smoke well. Tobacco syrup also contains sugar, and at about 168°C it will burn, resulting in an unpleasant burnt caramel flavor. To prevent this from happening, it is necessary to make the heating uniform. Sufficient is the heating temperature of the entire mass of tobacco or mixture in the range of 100-105°C, at which the tobacco wet mass is brought to a boil and the formation of steam without unpleasant taste sensations. In particular, this also applies to the surface layer of the mixture in chilim.

In a well-known solution, hookah coals heated to red or red-orange color from all sides are placed on the bottom and kept for some time so that the heat can heat the mixture to the point where steam is released from it. For example, coconut charcoal gives a uniform heat throughout the entire smoking time and gives out a temperature in the range from 600 to 700 ° C, and the smoldering temperature of charcoal during hookah smoking is about 450-500 ° C.

After laying hookah coals in a state of ignition, the bottom is heated, on which these coals lie. The bottom acquires a temperature almost equal to the temperature of heated coals. But the container with coals is located above or on the bowl with the smoking mixture. Therefore, the heat from the bottom is transferred to the surface layer of the mixture and heats it at an accelerated pace to high temperatures (significantly more than 100°C). The escaping steam acquires an unpleasant taste of burnt sugar. The heat coming from the coals in the convection mode accumulates under the cover, is redirected by the flow to the riser and enters the central zone of the mixture. The mixture superheated in the central zone transfers heat from the center towards the periphery of the chilim, where the temperature of the mixture is significantly lower than the temperature of the incoming heat. Thus, in the known solution, uneven heating of tobacco or smoking mixture occurs: overheating occurs in the central and surface zones of the mixture and heating to nominal temperatures in the periphery zone. The use of the lid as a tool for adjusting the volume of air entering the smoldering zone of coals makes it possible to reduce the temperature of the heat entering the mixture through the riser, but does not reduce the temperature of the heated bottom of the tank, especially in the area where the riser is attached to the bottom.

We must not forget that the main heat or heat that warms up tobacco or a smoking mixture, by heat transfer, enters the chilim from the side of the bottom, which is decisive in the process of heating the mixture to the state of vapor release. Naturally, the known design cannot provide uniform heating of the mixture to optimized temperatures of 100-105°C.

The present invention is aimed at achieving a technical result, which consists in improving the heat transfer properties of a device for regulating the heat of hookah coals by eliminating direct heating of the bottom of the tank of this device and ensuring local contact of heated hookah coals with the surface on which they are located.

The specified technical result for the first embodiment is achieved by the fact that in a device for placing heated hookah coals, containing a container with a bottom for placing heated hookah coals and a side wall extending from the bottom, in which through holes are made for supplying air from the external environment into the container, a hollow a riser in the form of a tube fixed in the center of the bottom and the cavity of which is connected with a hole in the bottom to bring out the heat flow from heated coals, the bottom is made of two plates located at a distance from each other, the first of which is connected directly to the side wall of the tank, and the second , located inside the container and made with a diameter smaller than the diameter of the side wall along its inner surface, is fixed on the first one with the formation of a cavity closed on the sides, communicated with the external environment through holes in the first plate, made along its periphery, while through holes in the side wall are made at or below level of the surface of the second plate, on which protrusions are made for local support of hookah coals, and in the center there is a hollow riser in the form of a tube, the cavity of which is connected through a hole in the second plate with the cavity between the first and second plates.

The device according to this embodiment can be provided with a lid for closing the container, in which holes are made for supplying air from the external environment into the cavity of the container and which is made with a handle. And the container can be equipped with supports for resting on a cup with a smoking mixture.

The specified technical result for the second embodiment is achieved by the fact that in a device for placing heated hookah coals, containing a container with a bottom for placing heated hookah coals and a side wall extending from the bottom, in which through holes are made for supplying air from the external environment into the container, a hollow a riser in the form of a tube fixed in the center of the bottom and the cavity of which is connected with a hole in the bottom to bring out the heat flow from heated coals, as well as a cover made with holes for supplying air from the external environment into the cavity of the tank, the bottom is made of two located on the distance from each other of the plates, the first of which is connected directly with the side wall of the container, and the second, located inside the container and made with a diameter smaller than the diameter of the side wall along its inner surface, is fixed on the first with the formation of a cavity closed on the sides, communicated with the external environment through holes in the first plate filled along its periphery, through holes in the side wall are made at or below the level of the surface of the second plate, on which protrusions are made for local support of hookah coals, and in the center there is a hollow riser in the form of a tube, the cavity of which through the hole in the second plate communicates with the cavity between the first and second plates, the lid is made in the form of a plate connected with the handle and a side wall that repeats the shape of the side wall of the container in plan, while the side wall of the lid is connected to the plate having the handle by jumpers to form slotted passages between the side wall and this plate for the air entering the tank.

In this embodiment, the lid plate associated with the handle can be made with through holes and with holding and/or centering elements to hold it from above on the side wall of the container.

These features are essential and are interconnected with the formation of a stable set of essential features sufficient to obtain the desired technical result.

The present invention is illustrated by specific examples of execution, which, however, are not the only possible ones, but clearly demonstrate the possibility of achieving the desired technical result.

In FIG. 1 - general isometric view of the container for heated hookah coals, the first version;

fig. 2 is the same as in Fig. 1, longitudinal section;

fig. 3 is a longitudinal section of the container according to FIG. one;

fig. 4 is a top view of the container of FIG. one;

fig. 5 - shows the distribution of air and heat flows, a view along the longitudinal section of the container according to Fig. one;

fig. 6 shows the distribution of air and heat flows in the container of FIG. 1, top view;

fig. 7 - general isometric view of the container for heated hookah coals, the second version, the lid is put on the container;

fig. 8 is the same as in Fig. 7, the lid is shown separately from the container.

According to the present invention, a new design of a device for placing heated hookah coals is considered. The device allows you to regulate the heat of hookah coals and form an adjustable heating of the hookah mixture for uniform heating of the entire mixture in the chilim (cup) with heat, at which the components of the smoking mixture go into a state of steam.

In the general case, for both versions (Figs. 1 and 7), the device is a container 1 located on a cup or above a cup with a smoking mixture, having a bottom 2, from which a side wall 3 departs, in which at the level of the inner surface of the bottom or a little below this surface, holes 4 are made for the entry of fresh air into the container cavity. The bottom from the side facing the cup is made flat. The side wall in the example of FIG. 1 and 7 is made cylindrical, but nothing excludes the possibility of making it somewhat convex or curly along the generatrix. In the example in FIG. 1 side wall is made cylindrical, but it is possible to make this wall square in plan. The first example of execution is more technologically advanced, since the cup is also round in plan. In the future, the analysis of the declared objects will be carried out on the example of a cylindrical container. The upper edge of the side wall can be made with a fit for the cover 5 (Fig. 7 and 8), covering the cavity of the container. For the first version, cover 5 is not used, the burning of hookah coals in the tank takes place in an open way.

A feature of the container 1 for the first and second versions is that its bottom 2 is made double.

The bottom 2 consists of a plate 6 located inside the container (inner plate), made with a diameter smaller than the diameter of the side wall along its inner surface. Thus, a gap is formed between the inner surface of the container wall and the outer end surface of the plate 6, which functions as a channel for air from the external environment to the cavity of the container 1 through holes 4 in the wall 3. The plate is made with a shoulder 7 around the perimeter, forming a low protrusion. A through hole is made in the center of this plate. Also, a hollow riser 8 is fixed on the plate, which is located perpendicular to the surface of the plate and fixed on it so that the hollow channel of the riser coincides with the through hole of the plate. On the surface of the plate 6 between the shoulder 7 and the riser 8, projections 9 are made, oriented perpendicular to the surface of the plate. The protrusions 9 can be made in the form of single elevations or formed in the form of zigzag elevations, as shown in Fig. 1. The essence of these protrusions is that the heated hookah coals do not rest on the surface of the plate 6, but locally on the elevations.

For example, cube-shaped coconut charcoal can range in size from 22 to 28 mm. During preparation, hookah coals are kindled on the hot surface of the stove or tile until a red or orange color of the heated composition forms on their surface. In order for this heating to be from all sides, the coals are turned over. And in such a heated from all sides, the coals are placed in a container around the riser. Traditionally, in conventional containers, coals always lie on the bottom surface with one side and transfer the heating temperature to it. In the claimed device, the coals lie on elevations, do not touch the surface of the plate 6, and under them an air passage is formed between the elevations, which makes it possible to remove heat from all sides of the coal at the same time. Given the need for local support of the coal cube, the distance between adjacent protrusions is chosen to be less than the size of the cube, and it is advisable to arrange these protrusions so that the cube cannot fall into the zone between the protrusions during a rollover. In fact, the protrusions, regardless of their form, perform the function of a grid for placing coals.

The bottom 2 also includes a plate 10 located outside the container (outer or outer plate), made with a diameter equal to the diameter of the side wall and connected to it. In this case, the holes 4 can be made in the corners of the outer plate adjoining the side wall, as shown in Fig. 1-3.

On the outer plate there are spacers 11 (can be made integral with the plate 10 or as separate parts welded to it), on which the plate 6 rests and on which it is fixed (for example, by spot welding). Thus, an air cavity is formed between the plates 6 and 10, which communicates with the channel of the hollow riser 8. In the outer plate 10 along its perimeter, through holes 12 are made, which communicate with the air cavity between the plates 6 and 10 and are outlet channels for directing the heat flow from the heat coals in a cup (chilim). At the same time, this heat flow is directed to the peripheral zone of the smoking mixture in the cup, heating the mixture and the walls of the cup in order to transfer heat from the walls to the underlying layers of the mixture.

The container may have supports or legs for secure placement on the cup or on the work surface during preparation (not shown for the first version). Supports, being limiters, ensure the stability of the container on the hookah bowl.

As a rule, in the central part of the plate 6, a hollow riser in the form of a hollow tube is made at a height at which the entrance to it is located above the level of the hookah coals to prevent ash from entering the riser channel. The channels between the protrusions are used not only to direct the heated flow from the lower zones of the coals towards the riser, but also to collect the ash.

When placed, heated hookah coals inside the container rest on the ledges. Air enters the cavity of the container through the open opening of the container (Fig. 5 and 6), ensuring the smoldering of coals. The heated air/heat from the coals rises by convection and part of it passes into the channel of the hollow riser. The process is not dynamic in nature, in which most of the heat goes up into the environment.

The dynamic process of moving the flow of heat occurs at the moment of suction of the hookah tube, at which a low pressure zone is formed inside the tube and in the cup. Since a low-pressure zone is formed during the convection movement of the heated masses, air from the external environment also begins to enter the cavity of the container through through holes 4 in the side wall of the container, falling into the zones between the protrusions and providing the process of smoldering / burning of coals on the sides facing the bottom. The air coming from the external environment is mixed with the heat flow coming from the coals and the mixed flow enters the riser channel, the cavity of which forms a common space together with the container cavity. The heat flow coming from the riser enters the air cavity between the bottom plates 6 and 10, transferring part of the heat to these plates. In this case, it should be taken into account that the plate 10 is external and is in contact with the external environment, the temperature of which is significantly lower than the temperature of the heated flow. There is a transfer of part of the heat from the heat to the outer plate, which in relation to the flow is an element of lowering the temperature of the heat flow. The temperature curve of the change during tightening looks approximately as follows. The temperature on the surface of the coals is approximately 600°C; when puffed, the heat flow mixes with air from the external environment, which enters through the through holes and 4 and through the open top of the container. There is a decrease in temperature at the inlet to the riser to about 300-350°C. The heat flow through the riser enters the air cavity of the bottom, where, due to the heat exchange of the lower (outer) plate with the external environment, the temperature drops to 120-150°C. Then the heat flow exiting through the holes 12 in the plate 10 enters the zone of the air gap between the container and the chilim (this zone is approximately 5 cm) and is directed to the surface of the smoking mixture, the temperature of which is significantly lower than the temperature of the incoming heat flow. There is a heat transfer between the mixture and the flow, at which the temperature drops to normalized 100-105°C. With each puff, the dynamic process is repeated. According to the rules of smoking, there should be pauses between puffs, at the moment of which the dynamic process smoothly turns into a stationary one without a pressurization of heat into the smoking mixture.

Thus, the considered design of the device allows, with open smoldering / burning of hookah coals, to ensure a decrease in the temperature of the heat entering the coals to close to normalized ones due to the fact that the heat flow travels a sufficiently long path, on which heat is taken off by the structures of the tank structure. In addition, the ingress of red-hot (burning) coal particles into the tobacco mixture is completely excluded.

In the first version of the container, the smoldering of hookah coals occurs in the mode of open air access to the container due to a freely flowing oxidative reaction with atmospheric oxygen. Limiting the access of air to the smoldering zone of hookah coals allows you to increase the heat by limiting the release of heat flow into the atmosphere. To limit the heat released into the external environment from hookah coals, cover 5 is used, which is put on the container.

In FIG. 7 and 8 show the second version of the device for placing heated hookah coals. In this embodiment, the container completely repeats the design of the container according to the first embodiment. But this container is used with lid 5.

The lid 5 is made in the form of a plate 14 connected with the handle 13, which is the upper part of the lid, and a side wall 15, which repeats the shape of the side wall of the container in plan. The side wall of the lid is connected to the plate 14 by jumpers 16 for the formation of slotted passages 17 between the side wall and this plate for the air entering the container. These slotted passages also serve to release heat from the container into the environment.

The plate 14 of the cover can be made with through holes 18, which also solve the problem of releasing heat from the container into the environment in the stationary mode of smoking a hookah and entering the air into the container in the dynamic mode of smoking.

As a rule, the lid is made of a material with low thermal conductivity (to prevent burns) or from the material of the container, but the handle of the lid is made of a material that ensures its heating does not exceed 40 ° C during normal use of the hookah.

The lid is made with holding and/or centering elements 19 to hold it from above on the side wall of the container.

In the stationary mode of smoking (a temporary pause between puffs), the heat flow from smoldering / burning hookah coals rises and mostly passes through the holes in the lid to the outside. The other part passes through the riser channel and enters through the air cavity between plates 6 and 10 into the area where the smoking mixture is located. Thus, the mixture heating mode is maintained. In this mode, the rise in the heat flow causes draft, as a result of which fresh air from the environment passes through the holes 4 and enters the bottom zone of the tank. This supports the mode of smoldering coals.

In dynamic mode, a low pressure is formed in the riser zone, which causes the heat flow to be redirected to the riser channel, air is drawn in through holes 4 and air is admitted through the holes in the cover. Further, the process is repeated in the mode described for the first example of the capacity. The difference lies in a smaller volume of air entering through the cover, a higher temperature of the heat flow entering the riser channel and an increase in the smoldering time of the coals.

Both options make it possible to obtain a heat flow at the outlet of the container with a temperature that is lower than the transition temperature of sugar into a burnt form and at which the mixture boils with the release of steam, in which the flavoring components that impart steam are preserved and do not burn.

The present invention is industrially applicable. A feature of the invention is the multilayer construction of the bottom of the tank with a tubular outlet for air. The double bottom protects the hookah mixture from local overheating, as well as from the ingress of red-hot (burning) coal particles into the tobacco mixture. The hot air from the coals passes into the double bottom through a tube located in the center, is distributed in the space of the double bottom and exits through the holes located in the bottom bottom plate. This design ensures uniform heating of the hookah mixture by changing the temperature of the heat flow in the bottom of the tank.

Claims (6)

1. A device for placing heated hookah coals, containing a container with a bottom for placing heated hookah coals and a side wall extending from the bottom, in which through holes are made for supplying air from the external environment into the container, a hollow riser in the form of a tube fixed in the center of the bottom and the cavity of which is connected with a hole in the bottom to bring out the heat flow from heated coals, characterized in that the bottom is made of two plates located at a distance from each other, the first of which is connected directly to the side wall of the tank, and the second, located inside the tank and made with a diameter less than the diameter of the side wall along its inner surface, is fixed on the first one with the formation of a cavity closed on the sides, communicated with the external environment through holes in the first plate, made along its periphery, while the through holes in the side wall are made at or below the surface level the second plate, on which the protrusions py for local support of hookah coals, and in the center there is a hollow riser in the form of a tube, the cavity of which, through a hole in the second plate, communicates with the cavity between the first and second plates. 2. The device according to claim. 1, characterized in that it is provided with a lid for closing the container, and in which holes are made for supplying air from the external environment into the cavity of the container and which is made with a handle. 3. The device according to claim. 1, characterized in that it is equipped with supports for resting on a cup with a smoking mixture. 4. A device for placing heated hookah coals, containing a container with a bottom for placing heated hookah coals and a side wall extending from the bottom, in which through holes are made for supplying air from the external environment into the container, a hollow riser in the form of a tube fixed in the center of the bottom, and the cavity of which is connected with a hole in the bottom to bring out the heat flow from heated coals, as well as a cover made with holes for supplying air from the external environment into the container cavity, characterized in that the bottom is made of two plates located at a distance from each other , the first of which is connected directly with the side wall of the container, and the second, located inside the container and made with a diameter smaller than the diameter of the side wall along its inner surface, is fixed on the first with the formation of a cavity closed on the sides, communicated with the external environment through holes in the first plate, made along its periphery, through holes in the side wall are made at the level or below the level of the surface of the second plate, on which protrusions are made for local support of hookah coals, and in the center there is a hollow riser in the form of a tube, the cavity of which through the hole in the second plate communicates with the cavity between the first and second plates, the cover is made in the form a plate connected to the handle and a side wall repeating the shape of the side wall of the container in plan, while the side wall of the lid is connected to the plate having the handle by jumpers to form slot passages between the side wall and this plate for air entering the container. 5. The device according to claim 4, characterized in that the cover plate associated with the handle is made with through holes. 6. The device according to claim. 4, characterized in that the lid is made with holding and/or centering elements to hold it from above on the side wall of the container.

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