The method of obtaining thermal energy from electric and device for its implementation

 

(57) Abstract:

The invention relates to a power system and heat exchanger technology. The method includes placing a heating element surrounded by a heat-retaining substances, isolated in their volume from the surrounding space deployemnt surface. As thermal storage substance use gaseous substance. The increase in the total working heat removal reach by increasing the surface of the heat removal of the heating element and the volume of the heat storage substance. Heating is performed in case of equality of temperatures of the surfaces of the heating element and deployemnt surface of the heating device. The device includes a housing divided into two interconnected chambers: internal and external, equipped with inlet and outlet holes. In the inner chamber is placed at least one heating device made in the form of one of the isolated volume of space filled with air. At the inlet port of the housing of the fan. The device constructively combines the function of a heat sink for convection heat transfer and thermal curtains. The invention provides the table.

The invention relates to a power system and heat exchange equipment, namely, electric heating liquid, air and solid media, and can be used, in particular, for heating of residential and industrial premises and Autonomous creation of thermal curtains.

Widespread methods of obtaining thermal energy from the electric-based heaters, representing the heating element, naked or surrounded by a heat-retaining substance, such as quartz sand, and covered with on the outside shell, which deployemnt surface. In this case, to allocate a certain amount of heat needed to do some work. The relationship between work and heat set according to the Joule-Lenz law:

Q = 0,24 x P x t [E. C. Kitaev, N. F. Grevtsev. The course of General electrical engineering. M : Soviet Science, 1945, pages 26-27],

where P is the power source, W;

t - heating time, s;

0,24 - heat equivalent units of work, cal/G.

From the point of view of molecular-kinetic theory of internal energy for composite solids (heating element, quartz sand and deployemnt surface in the form of a shell) consists of SUB>+P, where Epost.<post.molecular-kinetic energy of solids;

P - molecular potential energy of solids.

Due to the large depth of the potential well for solids make a great capacity to increase the average speed of the molecules within the potential well. Therefore, to obtain the necessary amount of heat required to do a great job. The first law of thermodynamics fixes this statement in the following form

Q=EEXT.+A

where EEXT.- the internal energy of solids;

A - work spent on heat.

A method of obtaining thermal energy from electrical to heat [D. A. Lipaev. Reference locksmith for repair of household electrical appliances and machines. M: Legprombytizdat, 1988, pp. 51-52], namely, that take the heating element, place it into the surrounding space, bring the electric current and bring the heating element to the bright glow, include fan, fanned the surface of the heating element and heat the air of the room.

Used in this similar device for heating type electrovalve generate heat to exist on the basis of water radiators, powered by thermal networks. Therefore, you can't use it offline economical way to heat a room without heat networks. Therefore, this analog is based on the use of well-known commercially available electric fan with a capacity of 2 to 10 kW are not widely used for Autonomous heating of the premises due to the following disadvantages:

high power consumption;

small heat removal per unit time due to the small deployemnt surface;

low efficiency of the method based on the use of such devices;

disturbance to the heated areas due to the high surface temperature of the heating element, for example, nichrome, affecting the qualitative composition of the air.

Also known is a method of obtaining thermal energy from electrical to heat [E. C. Kitaev, N. F. Grevtsev. The course of General electrical engineering. M: Soviet science, 1945, page 27], namely, that take the heating element, surrounded by his solid heat storage substance, for example a powder, quartz sand, isolate it from the environment deployemnt surface, for example, tubular type and get the device type heater, down to it Elektrisola based on the use of heating Elements depending on the operating conditions varied. They are used to heat water, mild acids at a temperature deployemnt surface 100oC; for heating gas environment at a temperature of deployemnt the surface to 450oC; for warm-up nitrate at a temperature of at deployemnt surface 600oC, etc.

The main disadvantages of this analogue based on the use of heating Elements:

high power consumption;

small TEPLOSET per unit time due to the low deployemnt surface;

low efficiency based on the use of this device;

high values of specific power, W/cm2.

Closest to the present invention is a method of obtaining thermal energy from electrical (Certificate for utility model N 4365, IPC 6 F 24 H 7/00, 19.04.96,, publ. 16.06.97,, bull. N 6), namely, that take electric heating element, surrounded by his solid heat storage substance, such as paraffin PCO-50, altering its physical state in the temperature range, isolate it from the environment deployemnt surface, for example, tubular type with a diameter of 50 mm, Placed it all in a chamber filled with liquid, such as mineral oil. Camera supply tlno to the electric heating element down the electric current. Warm environmental air.

The disadvantages of the method prototype is the following:

heat-retaining substance, such as liquid paraffin, allows you to raise the temperature only to a limited extent, for example to 150oC, which reduces the work output of the heat from the coolant;

insufficient heat removal per unit time due to the small deployemnt surface used in the prototype device;

low efficiency of the way;

a small coefficient of heat transfer from the heating element to deployemnt surface due to the use of this liquid medium, where Epost.=P.

A device for heating the air.with.USSR N 1721408, F 24 N 7/04, 3/04, publ. 23.03.92, bull. N 11), comprising a housing, at least one air channel framed walls, filled with the heat storage substance that changes the state of aggregation in the operating temperature range, and reported on the ends of the source and consumer of air, and the heat source. In the upper part of the body is the outlet openings and the heat source is made in the form of a tubular electric heating elements located in the air duct at an angle of 30-60 degrees to the horizontal plane.


the high cost of the initial energy to start the device, especially when heating larger rooms.

It is also known a device for heating air by heat accumulation. C. the USSR N 1760258, F 24 H 7/00, 1/20, publ. 07.09.92, bull.N 33), comprising a housing separated by a transverse partition into two chambers; the upper liquid, provided with inlet and outlet nozzles, and the bottom with a heat-retaining substance and Central electric heating element connected to a power source. In the upper part of the lower chamber covering the electric heating element installed insulated annular chamber provided a by-pass pipe with the liquid chamber, respectively, in the areas of the last mentioned inlet and outlet fittings. At the bottom of the camera covering the electric heating element has a spiral heat shunt with the Central and peripheral parts, the first of which is bonded to the annular chamber and the second wound its upper part under the wall above the annular chamber.

Nedostaveny to a liquid state a large amount of thermal storage substance requires significant power electric heating element;

the lowefficiency as a heat source during heating of the air in rooms with large areas of non-uniformity of the heat flux in a heated room.

The closest to the technical nature of the present device is a device for heating air (a utility model Certificate 4365 N 6 F 24 H 7/00, publ. 16.06.97, bull. N 6), comprising a housing, separated by two partitions on camera, equipped with inlet and outlet nozzles, one of which housed the storage of thermal energy (heating device) that includes a heating element such as nichrome, is connected to a power source, for example, in the form of a group of transformers and heat-retaining substance type paraffin PCO-50, changing the aggregate state in the temperature range, while the partitions are disposed vertically and divide the housing into three chambers - isolated Central, fluid-filled type mineral oil, and two interconnected extreme, filled with air, and in one of the end chambers installed the inlet and the other outlet, storage of thermal energy (heating device) is made in the form at the very measures the inside of which has an electrical heating element, filled heat storage substance, and the surfaces of the partitions and the side outer cameras equipped with ribs with the formation of a common air channel from the input to the output sockets on the input pipe placed fan.

The drawbacks of the prototype the following.

Low efficiency.

The lowefficiency it as a heat source during heating of the air in large rooms for use as a heat storage substances such as paraffin due to the fact that the working surface from which heat is removed, small in size and it is impossible to increase significantly due to the limited amount of paraffin.

The second aggregate state of matter - liquid paraffin allows you to raise the temperature of only 160oWith that restricts the use of large deploying work surfaces and reduces the work output of the heat medium (hot air), and therefore the efficiency of the prototype.

It is impossible to control the internal energy in a large extent, which reduces the efficiency of the prototype, for use as a heat storage substance is a solid substance with two phase transitions in liquid and gas.

The aim of the proposed from the use of a heating device with small power density with a large coefficient of heat transfer.

This goal is achieved by the fact that in the proposed method of obtaining thermal energy from the electricity, including the placement of the heating element, for example, nichrome, surrounded by the heat-retaining substances, isolated together with the heating element in its volume from the surrounding space deployemnt surface with the formation of the heating device, fail to heating element electrical energy, place a heating device surrounding the heated space, such as a room, washed his deploying surface air from the premises. Moreover, as thermal storage substance use solid inside surface of the heating element and gaseous outside surface of the heating element substance engaged in the transfer of heat to deploying surface of the heating device. The increase in the total working heat removal reach due to the associated increase in surface area of the heat removal of the heating element, its development in deploying surface of the heating device, the distance between them, the volume of gaseous thermal storage substance in the heating usdahome. Work heating of the heating element is chosen in the range above ambient temperature but below the temperature of the heating element, selected with regard to the possibility of functional failure of the supply current wiring, for example, available in the heated room. The result and use the heating device in the form of gasmoleculen Converter with low values of specific capacity and large heat transfer coefficient. The heat exchange is carried out at the condition

Q=EEXT., A=0,

where EEXT.is the internal energy of a gaseous substance;

A - work and heat transfer.

After washing with brine deployemnt surface, for example, blowing deployemnt the surface of the device by the flow of air from the heated space, it is mixed with the medium, for example air surrounding space to be heated premises.

Deploying surface of the heating device on the proposed method to improve its efficiency can be increased more, making it wavy, ribbed or corrugated.

The heating element it is best to heat below the temperature of its sverneho element and deployemnt the surface of the device. Equality of temperatures of the heating element and the heating device reaches due to the volume, the degree of sparsity of the gaseous heat-retaining substance, the intensity of washing the surface of the air from the room.

This goal is achieved and the fact that one of the proposed device for implementing the method (elektrovozduhoraspredeliteli), comprising a housing divided into two chambers - external and internal, equipped with inlet and outlet openings in the inner chamber is placed the heating device including a heating element, for example, nichrome, is connected to the power source, and the heat storage substance, and the heating device is made in the form of at least one isolated from the outside volume of space. At the inlet of the inner chamber of the device forced air circulation over the surface of the heating device, such as a fan. Both chambers are connected, and the outlet of the inner chamber is the inlet of the external camera. The heating device is filled with air.

Case easier to produce what about the Poppet cylinder or parallelepiped.

The heating device may be made in the form of a cylinder or a parallelepiped, or a ball, and corrugated cylinder or a parallelepiped, or a ball.

Outlets for hot air can be several and they are best placed at the bottom of the hull on its periphery.

The power source, for example, 220 V, 50 Hz, it is better to provide a rectifier diode or a step-down transformer, for example, to 110 In, for spasmodic control current, for example, up to 5 a, the electric heating element.

The proposed device for implementing the method (electrophosphorescent) may be additionally provided with a device forward and backward linkages with the surrounding air environment, for example, consisting of an air temperature sensor with remote putting it outside of this device (electrogastrograms), to automatically turn on or off the power source.

The proposed device for implementing the method (electrophosphorescent) can be complemented by support, located in the lower part of the front of the device for forced air circulation and provided with slits to suction air from the heated pedesta, used in the proposed method as a heat storage and heat transfer substance, consists of the sum of the kinetic energy of all molecules and the potential energy of interaction

EEXT.=Epost.+P; Epost.>>P,

where Epost.molecular kinetic energy of molecules;

P - molecular potential energy of the molecules.

For this reason, the prototype is characterized by a potential pit where it is necessary to expend energy on phase transitions and the work to receive a certain amount of heat, while the proposed solution is characterized by a potential well, where the molecules do not work on heat transfer.

In science and technology not found solutions with populations essential characteristics similar to the proposed method and device for its implementation. A closed constant volume heat storage gaseous substance is not doing external and internal work on phase transitions of this substance, only performs the function of the heat accumulator and its transfer from the surface of the nichrome to the outer surface of the heating device. In contact with a heating device telenovela the transfer of heat to the housing and outside electrogastrograms. In addition, the division of the body into two communicating chambers in comparison with the prototype also contributes to the intensification of heat exchange with the environment and increase efficiency. Convection prototype is supplemented in the proposed device creation and more powerful heat of the veil.

Thus, the proposed technical solutions meet the criterion of inventive step.

The proposed method and device for its implementation are illustrated in Fig. 1-3.

Fig. 1 graphically describes the selection of the optimal distance between the two surfaces of the heating element and deploying device. In Fig. 2 shows a General view of the proposed device (electrogastrograms) in section, and Fig. 3 the electrical circuit.

The method is as follows. Take the heating element of greater length than that of the Heaters, surround them with solid heat storage substance, placing it inside surface of the heating element.

For example, take steel corrugated surface coated with ceramic or enamelled coating for electrical insulation, and is wound on her nichrome wire outside. All athletie heat and its transfer to deploying surface of the heating device, closed in its path from the external surrounding space. Let the electric current to the heating element and adjust its parameters for the optimal working of the heating of the heating element in the range above ambient temperature but below the temperature of the heating element, selected with regard to the possibility of functional failure of the supply wiring, for example, the heated premises. Receive and thereby use the heating device in the form of gasmoleculen Converter with low values of specific capacity and with a large coefficient of heat transfer. The change (increase) the total heat removal reach by changing the distance between the primary and secondary surfaces and Calosoma, compared to the surface area of the heating element, the volume of the heat storage substance and intensity of air flow. The method is carried out at more or less equal to the surface temperature of the heating element and deployemnt surface of the heating device, and the equality of the temperatures of the surfaces of the heating element and the surface of the heat removal reach by optimizing the gap (rastani substances, the intensity of washing the surface of the heating device air from visiting and control of electric current to the heating element.

Washed, for example, fanned deploying the surface of the device by the flow of substances from the environment, e.g. air, and mix it with the medium, such as heated air of the room.

Deploying surface of the heating device it is also advisable to increase additionally by performing her wavy, ribbed or corrugated to increase the effectiveness of the proposed method.

The heating element it is best to heat below the temperature of the glow.

An example of a specific implementation of the proposed method in comparison with the method of the prototype.

In the method prototype took the heating element in the form of nichrome wire (nichrome) with the following parameters:

dthem.=1.2 mm; R0=0.97 Ohm; I1= 4,2 AND U1=110;

P1=U1xI1=462 W,

where dthem.- diameter nichrome, mm;

R0is the resistance 1 m nichrome, Ohm;

I1- passing a current through the nichrome, AND;

U1- applied voltage;aroma dimensions 155 mm x 350 mm x 1 mm with a pitch of corrugations h1=9 mm, the Surface was covered with two coats of enamel to ensure the electrical insulation of the nichrome from steel plate.

External deploying surface of the heating device was performed in the form of a parallelepiped with dimensions 365 mm x 160 mm x 20 mm was Applied to the steel material 3.

The length and resistance of the nichrome was determined using the following steps:

lthem.= l1n1=35 cm=385 cm=3.85 m

where l1- the length of the corrugated surface of the base for winding nichrome;

n1- the number of half-waves, in which is placed the nichrome;

lthem.- the length of the nichrome on one corrugated surface of the base for winding nichrome;

lthem.= lthem.n2=3,857=26,95=27 m,

where 4 n2- the number of corrugated surfaces, equal to 7;

lthem.- the total length of nichrome;

Rthem.=R0lthem.=0,97 Om,85 m=to 3.73 Ohms;

Rthem.= Rthem.n2=to 3.73 Om=26,11 ω = 26,1 Ω, where:

Rthem.the resistance of the nichrome placed on one corrugated surface of the base;

Rthem.the total resistance of the nichrome.

The surface area of the nichrome was defined as follows:

L1= dthem.=3,140,1 and the circumference of the nichrome;

Sthem.- the total surface area of the nichrome.

Square deployemnt surface, Stthat have come in contact with the coolant, found as follows:

a) S1=16 cm,5 cm=584 cm2; 2S1=1168 cm2;

b) S2=2 cm,5 cm=73 cm2, 2S2=146 cm2;

in) S3=2 cm cm=35 cm2; 2S3=64 cm2;

g) St=2S1+2S2+2S3=1168 cm2+ 146 cm2+64 cm2=1378 cm2;

St=1378 cm27=9646 cm2=10000 cm2,

where St- the surface area of teplopoteryami one of a parallelepiped;

St- the surface area of the heat removal seven parallelepipeds.

Filled internal volume of the heating device paraffin PCO-50. The volume of the heat storage liquid substances engaged in the storage and transfer of heat to deploying surface of the heating device, defined as follows:

Vm=Vn-VFDG.-Vthem.,

where Vn- the internal volume of the parallelepiped cm3;

VFDG.- the volume of the corrugated surface, the foundations for winding nichrome, cm3;

Vthem.- the volume of nichrome, cm3;

a) Vn=3,85 cm3;

Sthem.= dthem.2/4=0,01 cm2;

where Sthem.- the cross-sectional area of the nichrome;

dthem.- diameter nichrome;

Vm=11680 cm3-63 cm3-3,85 cm3=11613 cm3;

Vm=Vmn2=11613 cm37= 81291 cm3< / BR>
where Vm- the volume of the heat storage liquid substances in seven parallelepipeds.

The power density on the surface of the nichrome, Sthem.on deployemnt surface, Sm, was defined as follows:

K1=R/ Sthem.=462 watts/1000 cm2=0,46 W/cm2.

TO2=R/ Sm=462 W/10000 cm2=0,046 W/cm2.

The heat transfer coefficient, Kt, defined as the ratio of the specific capacity:

TOt=K1/K2=0,46 W/cm2/0,046 W/cm2=10.

The specific electrical energy E0, was defined as follows:

E0=Pt=462 VT1=462 j.

Specific thermal energy Ethentaking into account heat transfer coefficient was determined as follows:

Ethen=E0TOt=462 J=4620 J.

Specific thermal energy depends on the square deployemnt surface, so you can adjust the amount is P CLASS="ptx2">

For liquid media (liquid paraffin), you need to make great power to increase the average speed of the molecules within the potential well. Therefore, to obtain the necessary amount of heat required to do a great job. The first law of thermodynamics is written in this case in the following form: Q=EEXT.+A. Additional work expended on phase transitions of paraffin from solid to liquid. In this regard, the efficiency of the device decreases.

The proposed method took a particular heating element in the form of a nichrome wire with the following parameters: dthem.=1.2 mm; R0=0.97 Ohm; I1= 4,2; U1= 110 V; P1=U1I1=462 W; where dthem.- diameter nichrome, mm; R0is the resistance 1 m nichrome, Ω; I1- passing a current through the nichrome, A; U1- applied voltage, V; P1- power; W.

Took corrugated steel surface is the basis for the placement of nichrome dimensions 155 mm x 350 mm x 1 mm with a pitch of corrugations h1= 9 mm, the Surface was covered with two coats of enamel to ensure the electrical insulation of the nichrome from steel plate.

External deploying surface of the heating device and the resistance of the nichrome was determined using the following steps:

lthem.= l1n1=35 cm=385 cm = 3,85 m,

where l1- the length of the corrugated surface of the base for nichrome;

n1- the number of half-waves, in which is placed the nichrome;

lthem.- the length of the nichrome on one corrugated surface of the base for winding nichrome.

lthem.= lthem.n2=3,857=26,95=27 m;

where n2- the number of corrugated surfaces, equal to 7;

lthem.- the total length of nichrome;

Rthem.=R0lthem.=0,97 Om,85 m = to 3.73 Ohms;

Rthem.=Rthem.n2=to 3.73 Om= 26,11 Ω=26,1 Ohms;

where Rthem.the resistance of the nichrome placed on one corrugated surface of the base;

Rthem.the total resistance of the nichrome.

The surface area of the nichrome is defined as follows:

L1= dthem.=3,140,12 cm=0,37 cm;

Sthem.=L1lthem.=0,37 cm cm=999 cm2=1000 cm2;

where L1- the circumference of a nichrome;

Sthem.- the total surface area of the nichrome

Square deployemnt surface Smthat have come in contact with the coolant, found as follows:

a) S1=16 cm,5 cm=584 cm2; 2S1=1168 cm2;

bir>;

g) Sm=2S1+2S2+2S3=1168 cm2+ 146 cm2+64 cm2=1378 cm2;

Sm=1378 cm27=9646 cm210000 cm2;

where Sm- the surface area of the heat removal of a single parallelepiped;

Sm- the surface area of the heat removal seven parallelepipeds.

Fill the internal volume of the heating device of the atmospheric air. The volume of thermal storage of gaseous substances (air) engaged in the storage and transfer of heat to deploying surface of the heating device, defined as follows:

Vm=Vn-VFDG.-Vthem.,

where Vn- the internal volume of the parallelepiped cm3;

VFDG.- the amount of corrugated plane of base for winding nichrome, cm3;

Vthem.- the volume of nichrome, cm3;

Vn=36,5 cm cm2 cm=11680 cm3;

VFDG.=18 cm cm,1 cm=63 cm3;

Vthem.=385 sm,01 cm2=3,85 cm3;

Sthem.= dthem./4=0,01 cm2,

where Sthem.- the cross-sectional area of the nichrome;

Vm=11680 cm3-63 cm3-3,85 cm3;

Vm=Vmn2=11613 cm37=81291 cm3< / BR>
where Vm- on the surface of the nichrome, Sthem., was defined as follows:

TO1=PSthem.=462 watts/1000 cm2=0,46 W/cm2;

K2=P Sm=462 W/10000 cm2=0,046 W/cm2.

The coefficient of heat transfer Ktdefined as the ratio of the specific capacity.

TOt=K1/K2=0,46 W/cm2/0,46 W/cm2=10.

The specific electrical energy was defined as follows:

E0=Pt=462 VT1=462 j.

Specific thermal energy defined:

Ethen=E0TOt=462 J=4620 J.

Execution deployemnt surface corrugated, ribbed or corrugated possible to increase the heat transfer coefficient by an amount dependent increase this surface.

The heating element until the temperature of the glow and above caused unproductive light loss in the process of conversion of electricity into heat, which reduced the efficiency of the proposed method by an amount dependent on the light intensity, the dimensions of the element, etc.

For gaseous thermal storage substance best condition of heat transfer in Q = EEXT., A = 0,

where EEXT.is the internal energy of a gaseous substance;

A - work surfaces of heat removal and the heating element when they are more or less constant operating temperature was reached, in particular, the quantity of thermal storage gaseous substances and characterized a technical parameter is the heat transfer coefficient as the ratio of their specific capacities. Since the specific heat is always different from the specific electrical energy, their absolute values and ratio ceteris paribus were the main characteristics of the proposed method based on the use of gasmoleculen Converter in comparison with the prototype and other counterparts.

One of the important features of the heat transfer coefficient (Ktwas what he characterized the zoom rational length of the distance between the working surfaces in many times, how much would vary between deployemnt the surface of the device and the surface of the heating element. Was created thus a kind of inclined plane, on which the "rolling" of the molecules of a gaseous substance without doing the work. Therefore, the proposed gasolinecolor Converter was a source of thermal energy in the working temperature range. This statement is demonstrated in Fig. 1, where the graph is given by the abscissa axis - specific moveme surfaces - deployemnt and heating.

The proposed method is optimally carried out at more or less equal to the surface temperature of the heating element and deployemnt the surface of the device is achieved, for example, by paired among themselves change these settings surfaces, the volume of thermal storage gaseous substances through the gap (distance) between them, as well as optimization of the degree of rarefaction of thermal storage substance, regulation of the process of washing deployemnt device surface air and parameters of the electric current to the heating element. The way to reach the optimum mode of operation, when

Q=EEXT., A = 0,

where EEXT.is the internal energy of a gaseous substance;

A - work and heat transfer.

Specific technical data on the proposed method based on gasmoleculen Converter are summarized in table 2 for the range of temperatures from 200 to 300oC.

The proposed device for implementing the method (electrophosphorescent) includes a housing 1 with two cameras: 2 internal and 3 external. Inner chamber 2 contains at least one heating ustroistvo, output (-s) hole (s) 5 for the discharge of hot air. At the entrance into the internal chamber 2 before the input (reference) hole (s) 6 placed the device forced air circulation over the surface of the heating device, for example, the fan 7. Cameras 2 and 3 are connected, and an outlet opening 8 of the inner chamber 2 is the inlet 8 of the outer chamber 3. The heating device 4 is performed as a stand-alone volume (hollow) space 9, for example, in the form of a parallelepiped or a cylinder or a sphere, preferably with a corrugated surface, and placed vertically in the inner chamber 2. Inside of the heating device 4 has a heating element 10, for example, nichrome, is connected to the power source II. The heating device 4 with the electric heating element 10 inside is filled with a chemically inert gas or a mixture of such gases or gaseous safe substance 9, for example air, intended for accumulation and transfer of heat from the surface of the nichrome 10 on the surface of the heating device 4.

The housing 1 is easier and better to produce in the form of a cylinder or a parallelepiped, and corrugated qi is example, 220 V, 50 Hz, it is better to provide a rectifier diode 12 or step-down transformer 12, for example, to 110 In, for spasmodic control current, for example, up to 5 a, the electric heating element 10.

The proposed device (electrophosphorescent) may be additionally provided with a device forward and backward linkages with the surrounding air environment, for example, consisting of an air temperature sensor with remote putting it outside of the device (electrogastrograms), to automatically turn on or off the power source (Fig. 2-3 not shown).

The proposed device (electrophosphorescent) can be complemented by support 13, located in the lower part of the front of the device forced air circulation 7 and is provided with slots 14 for suction of air from the heated space.

When turned on, the fan 7, which is drawing cool air from the heated space through the chamber 2, which has the heating device 4, is heat this portion of the cold air. Further, the heated air moves through the chamber 3 to the exit of hot air through the outlet 5 to which mperature air in the room (with the help of the device forward and backward linkages to automatically switch on or off).

Comparison of the proposed method based on gasmoleculen Converter and method according to the prototype based on terdigitata Converter shows that the performance of the first higher due to the increasing development of the area deployemnt surface, volume and degree of sparsity those gaseous substances, carrying out heat exchange with the condition Q = EEXT., A = 0, where all the internal energy of the proposed method goes into heat, while the prototype part of the internal energy is spent on phase transitions and other types of interior works, liquid paraffin limits the temperature on the surface of the heat removal within 100 - 150oC , reducing the number of carrier with the optimum desired predetermined temperature in comparison with the proposed method, where the surface temperature of the heat removal up to 200 - 300oC.

The performance is the same fan, 280 m3/ h, in both of the compared methods, the temperature of the coolant varies from 70 to 150oC for the method using gasmoleculen Converter, and a prototype using terdigitata Converter only within what allogamy the following:

low power consumption;

high efficiency;

large heat removal per unit time by increasing the heat transfer coefficient (development area of the heat removal, the operating temperature of the heating and heat removal);

the low value of specific power;

adjustable specific heat;

higher environmental and safety due to use instead of paraffin atmospheric air or, preferably, chemically inactive gases, as well as through the creation of temperature on the surface of the nichrome below its glow.

The comparison of the proposed device with the prototype and other similar technical solutions shows that its set of essential features allows to achieve the following technical results:

1. To regulate the output quantity of heat per unit time due to structural and functional changes of the surface area of the heating device at a constant temperature and thereby to heat not only small but also large rooms and space.

2. To increase the service life of the device, because no heating of the electric heating element until it shines.

3. Obespechenie heat in any heated room.

4. To ensure that the temperature control fluid within 70-150oC.

5. To increase availability, ease of installation, maintenance, and transportation of such elektrovozduhoraspredeliteley.

6. To create an environmentally friendly source of thermal energy with high efficiency.

7. To increase the power of the heat transfer and to reduce consumption due to the intensification of heat exchange with the environment.

1. The method of obtaining thermal energy from the electricity, including the placement of the heating element surrounded by the heat-retaining substances, isolated together with the heating element in its volume from the surrounding space deployemnt surface with the formation of the heating device, placing the received one or more heating devices in surrounding the heating chamber, an inlet for a heating element of an electric power washing deployemnt the surface of the device by air, characterized in that the heat storage substance use solid inside surface of the heating element and gaseous outside surface of the heating element basepagename between an increase (development) of the original surface area of the heat removal of the heating element, volume of the gaseous heat-retaining substance around it, square deployemnt surface of the heating device, through the creation of a gap (distance) between the working surfaces due to the intensity of the washer deployemnt surface of the heating device by the air from the room, as well as by adjusting the parameters of the electric current to the heating element, the optimal heating of the heating element for a given heating are in the range of above ambient temperature but below the temperature of the heating element, selected with regard to the possibility of functional failure of the wiring heated space, get thus used for heating the heating device in the form of gasmoleculen Converter heat with small values of power density and large values of heat transfer coefficient using it to convert electrical energy into thermal energy provided

Q = ENR, A = O,

where ENRis the internal energy of a gaseous substance;

A - transfer of heat,

while heating is performed in case of equality of temperatures of the surface of the heating elementbased surface of the heating device increases additionally, making it wavy, ribbed or corrugated.

3. The method according to p. 1 or 2, characterized in that the heating element is heated to a temperature below its glow.

4. Device to obtain heat energy electrical (electrophosphorescent), comprising a housing divided into two chambers - external and internal, equipped with inlet and outlet openings in the inner chamber which is placed at least one heating device including a heating element connected to a power source, and the heat storage substance, and the inside is made in the form isolated from the outside volume of space, with an entrance aperture of the housing unit forced circulation of the coolant, such as air, over the surface of the heating device, for example, fan, characterized in that both chambers are connected, an inlet opening in the housing located opposite the entrance opening into the internal chamber, and the outlet of the inner chamber serves as an entrance hole in the outer chamber, the heat storage substance of the heating device includes a solid inside surface of the heating element is tives such as those the body is made in the form of a cylinder or a parallelepiped.

6. The device under item 4 or 5, characterized in that the casing is made in the form of a corrugated cylinder or parallelepiped.

7. The device under item 4 or 5, characterized in that the casing is made in the form of a prefabricated plate cylinder or a parallelepiped.

8. The device according to each of paragraphs.4 to 7, characterized in that the heating device has the shape of a parallelepiped.

9. The device according to each of paragraphs.4 to 7, characterized in that the heating device has the shape of a cylinder.

10. The device according to each of paragraphs.4 to 7, characterized in that the heating device has the shape of a ball.

11. The device according to each of paragraphs.4 to 10, characterized in that the surface of the heating device has a corrugated shape.

12. The device according to each of paragraphs.4 to 11, characterized in that the outlet openings for the hot coolant is more than one and they are located on the body surface in its lower part.

13. The device according to each of paragraphs.4 to 12, characterized in that the power source has a rectifier device type diode or step-down transformer for spasmodic reguline fact, it is additionally equipped with a device forward and backward linkages with the surrounding air environment, for example, consisting of an air temperature sensor with remote putting it outside of the device, to automatically turn on or off the power source.

15. The device according to each of paragraphs.4 to 14, characterized in that it is supplemented by support, located in the lower part of the front of the device for forced circulation of the heat carrier and provided with slits to suction air.

 

Same patents:

The invention relates to a two-layer systems of accumulation of thermal energy, such as Solar energy, in which the absorption of heat is accumulating layer 24 and then through the heat-release layer 22 is transmitted to the consumer through a pipe 30

Electric heater // 2103618

The invention relates to energy, and in particular to equipment for heating of domestic and industrial premises

The invention relates to heat engineering, heat engineering and is intended for heating and heating of residential, administrative, agricultural, industrial buildings and their individual premises using a failure of electric power and energy non-conventional sources

The invention relates to agriculture and can be used, for example, to supply technology hot water livestock cooperatives, and farmers and other entrepreneurs

Heat accumulator // 2011931
The invention relates to the field of heat and can be used in civil and industrial construction

Stove for baths // 2011121

The invention relates to heat engineering, namely the accumulator gas heaters

The invention relates to a high-temperature electric heating device for heating gas and can be used in space technology for heating fuel components in missiles and space vehicles, aerospace and other industries

Battery heat // 2145404
The invention relates to thermal batteries and can be used in technical devices that consume heat energy when uneven receipt or expenditure, in particular in the system of pre-preparation of vehicles at low ambient temperatures

Heat accumulator // 2143649
The invention relates to heat engineering, heat accumulators intended for accumulation, storage, and return of heat, in particular for heating when you start the car engine

The invention relates to heat engineering, in particular to thermal batteries intended for accumulation, storage and heat loss

Heat accumulator // 2140046
The invention relates to heat engineering, heat accumulators intended for accumulation, storage, and return of heat, in particular for preheating coolant at start-up in the cooling system of automobile engine

The invention relates to a two-layer systems of accumulation of thermal energy, such as Solar energy, in which the absorption of heat is accumulating layer 24 and then through the heat-release layer 22 is transmitted to the consumer through a pipe 30

Battery heat // 2128315
The invention relates to thermal batteries and can be used in devices that consume heat or uneven receipt or expenditure, in particular in the system of pre-preparation of vehicles and their power plants

The invention relates to a heating installations

Heat accumulator // 2123157
The invention relates to power engineering, power plant engineering, high-temperature sources of heat for process and domestic purposes and can be used, for example, to heat water, steam, vapor and gas-vapor mixtures in the energy and chemical industry, municipal services, for peak power plants, in collaboration with wind power plants and micro hydro

FIELD: heat engineering, namely accumulator of gas heaters, possibly used for constructing Cowper and ohmic gas heaters for aerodynamic tubes.

SUBSTANCE: heater includes heat accumulating adapter arranged in housing with gas-tight cylindrical outer surface and electric current supply leads of resistive heating member. Heat accumulating member of adapter is zigzag-shaped and it is made of thin strip of sheet material; said member has vertically arranged lamellae mutually spaced by the same distance and placed along axis of heater. Ends of said strip are connected to electric current leads. Annular mutually joined flanges are arranged on ends of adapter. The last has rods arranged between flanges on cylindrical surface; said rods are electrically isolated from flanges and they serve as supports for lamellae of heat accumulating member. Each flange of adapter has three parts (upper ring-half and two lower ring quadrants). There are gaps between parts of rings and casing for providing displacement of ring parts one relative to other and relative to casing by value of length change of lamellae of heat accumulating member at heating and cooling them.

EFFECT: enlarged using range of hot-blast heater due to its simplified design and lowered hydraulic resistance.

3 dwg

FIELD: heat engineering, namely accumulator type gas heaters, possibly used at developing hot blast gas heaters for aerodynamic tubes.

SUBSTANCE: gas heater includes cylindrical heat accumulating adapter sealed in housing near end of gas outlet. Novelty is that heater includes rod arranged along axis of heat accumulating adapter, supporting grid and cylindrical gas-tight casing. Heat accumulating member of adapter is made of thin corrugated strip whose one end is secured to rod. Corrugated strip is twisted around rod in the form of compact coil arranged together with supporting grid in casing. Height of strip corrugation is equal to thickness of strip.

EFFECT: improved design of heater due to its lowered hydraulic resistance.

1 dwg

Up!