RU48032U1 - ROOM HEATING DEVICE - Google Patents

Abstract

The utility model relates to heating systems and is intended for heating rooms of various types, autonomous field parking, cabins and salons of vehicles. Achievable technical result is to increase the efficiency of use of the device while simplifying it. A device for heating rooms includes a housing with a heat exchange chamber filled with a coolant; electrode type heating element and heating mode control unit. The electrode-type heating element is secured through a dielectric insert in isolation at one point to the casing so that the electrode is directly connected to the alternating current phase, and the casing has electrical contact with the heat exchange chamber, while the coolant moves into the mains under the influence of pressure created, for example, by a pump.

Description

The utility model relates to heating systems and is intended for heating rooms of various types, autonomous field parking, cabins and salons of vehicles and vehicles.

The closest in technical essence is a device for space heating, comprising a housing with a heat exchange chamber filled with coolant, an electrode-type heating element and a heating mode control unit (see RF patent No. 2133918 for the invention “A device for heating rooms”, IPC F 24 D 3 / 08, F 24 D 13/04), adopted as a prototype. In the prototype device, the electrode-type heating element is made continuous with an internal working element located in the direction of movement of the heated coolant, and an external element covering it with a gap, which is part of the coolant line, isolated, like the internal element, from the coolant line. The output of the phase load is connected to an internal element electrically insulated from the external element enclosing it.

The disadvantage of the prototype device is the lack of efficient use of the device when heating large buildings. Given the low circulating pressure created by the temperature difference between direct (hot) and return (cold) water, additional costs of electric energy are required to bring the entire heating system to working condition. Reducing the resistance on the path of the coolant due to its low speed requires the use of large diameter pipes in highways, which significantly increases the cost of the building and complicates the installation of equipment. Availability

perforated electrical insulators in the path of movement of the coolant (water) also impairs circulation and can lead to loss of device performance due to the deposition of metallic inclusions in the water on electrical insulators. With sufficiently long horizontal highways, for example, 30 meters, the prototype device becomes generally ineffective and economically disadvantageous (see Nazarov V.I. Water heating. Spectrum Trading Trust-Press. Moscow. 2000, p.22).

The task to which the proposed utility model is directed is to increase the efficiency of use of the device when heating large buildings by instantly heating the coolant and quickly transferring heat along the line to the heat exchange chambers, while simplifying the design of the device.

The essence of the utility model is as follows.

The inventive device for space heating contains, as well as the prototype, a housing with a heat exchange chamber filled with coolant, an electrode type heating element and a heating mode control unit. Unlike the prototype, in the device for heating rooms, the electrode type heating element is fixed through a dielectric insert in isolation at one point to the housing so that the electrode is directly connected to the alternating current phase, and the housing has electrical contact with the heat exchange chamber. In this case, the coolant moves in the line under the influence of pressure created, for example, by a pump.

The essence of the utility model is illustrated in the drawing, where:

figure 1 shows a General view of the device;

figure 2 disclosed the design of the heating element.

A device for heating rooms comprises a housing 1 of a heating element, a heating mode control unit 2, a heat exchange chamber 3 filled with a heat carrier; highway 4,

a water temperature sensor 5 installed in the return water line and connected to the heating mode control unit 2; and pump 6.

The electrode-type heating element is fixed through a dielectric insert 7 in isolation at one point to the housing 1 so that the electrode 8 is directly connected to the alternating current phase, and the housing has electrical contact with the heat exchange chamber 3.

The coolant 9 moves in the line under the influence of pressure created, for example, by a pump 6.

The power supply is connected to terminal 10 “neutral wire” and terminal 11 “phase wire”.

As a water temperature sensor 5 and control unit 2, commercially available products are used that are registered as measuring instruments. For example, a temperature sensor - ТСO15-50М. B3 20 / 0.5 or TCO45-50M. B3.120; control unit - TPM101 or 2TRMO (see the catalog of the company of the Russian production company Aries "Control and measuring devices", Moscow).

The composition of the heat exchange chamber (radiator) 3 may include a source of hot water supply (boiler).

The device operates as follows.

When applying a supply alternating voltage of 220 V to the control unit 2, the circulation pump 6 is turned on and 220 V power is supplied to the electrode-type heater. The coolant (water) 9 under pressure begins to move along the line. Entering the housing 1 of the heating element, water dramatically changes the speed of movement, as a result of which the fast-flowing process of electrolysis manages to heat the water to the boiling point of water. Heated water through the main enters the boiler, and then through the main to another part of the heat exchange chamber 3.

After heat is transferred to the heat exchange chambers, return water enters the pump. Return water temperature controlled by a sensor

temperature 5. When the temperature is exceeded, for example, 80 ° C, the sensor 5 gives a signal to the control unit 2 to turn off the power from the heating element. The pump continues to run. When the return water temperature becomes, for example, 70 ° C, the sensor 5 gives a command to the control unit 2 to supply power to the heating element.

The process is then repeated.

The proposed device allows you to instantly heat the coolant to the required temperature at low cost of electric power. So, if in Russia the standard for thermal power for heating 1 m2 ^{of the} area is 150 W (see N.TS. Mololosov, F.M. Ikhteiman, P.S. Bokov. Electricity in a personal subsidiary farm. Reference book. Moscow, Agropromizdat , 1990, p.119, 125), then for the proposed device it is 20 watts. To heat the premises 2000 m ² and use hot water in 10 shower points, the proposed device consumes electricity - 30 kW.

In addition, the use of the proposed device greatly simplifies the implementation of preventive and repair work. Simplification of the design of the device compared to the prototype is also achieved due to the fact that the housing has a common electrical contact with the heat carrier line, which must be grounded. In this case, the junction of the housing and the trunk do not have dielectric bushings.

The ability to move the coolant in the line under the influence of pressure created, for example, by a pump, allows you to move the coolant at high speed, for example, 2 m / s, which can provide pipes of small diameter. The diameter of the pipes was calculated according to the well-known formula (see V.I. Anuryev. Handbook of a mechanical engineer. Moscow. Mechanical engineering, volume 3, p.225):

where

D is the inner diameter of the pipe (mm),

Q - water consumption (l / min)

V is the velocity of water (m / s).

Thus, the technical result from the use of the proposed device in comparison with the prototype is to increase the efficiency of use of the device when heating large buildings due to instant heating of the coolant and rapid heat transfer along the line to the heat exchange chambers, while simplifying the design of the device.

Claims (1)

A device for space heating, comprising a housing with a heat exchange chamber filled with a heat carrier, an electrode type heating element and a heating mode control unit, characterized in that the heating element is secured through a dielectric insert in isolation at one point to the housing so that the electrode is directly connected to the alternating current phase and the housing has electrical contact with the heat exchange chamber, while the coolant moves in the line under the influence of pressure created, for example, by asosome.