WO2011155911A1 - Heating apparatus - Google Patents

Abstract

Use: in individual and centralized heating systems for living quarters and offices. Essence: the heating apparatus contains metallic plates which have a single opening and are fixed separately in a compact fit on each branch of a U‑shaped tube with a gap therebetween of from 3 to 10 mm. The rear panel of the housing has a slot along the entire length thereof with a width of from 0.1 to 0.5 of the height of the housing. A screen which is bent inwards at an angle of from 10° to 80° and with a height extending from the lower panel as far as the lower plate edges is arranged in the lower part of the rear panel. The front panel has from 1 to 10 slots along the entire length thereof with a width of from 0.05 to 0.5 of the height of the housing. The area of the plates is 5‑20 times greater than the area of the cross section of the tube. The opening in the plates is in the form of a flute, part of which, making contact with the tube, is of a length of from one to five mm. The slots in the front panel are bent outwards at an angle of from 10° to 60° from the plane of the panel. Technical advantages: the floor air temperature is increased; the heat transmission efficiency is increased; and the expenditure of energy for heating living quarters and offices is reduced.

Description

 HEATING DEVICE

FIELD OF THE INVENTION

 The invention relates to the field of heat supply and can be used for individual and centralized heating systems of residential and office premises.

State of the art

A radiator for heating systems is known, comprising a tubular part with a flat cross section and a ribbed part made integrally with the side wall of the tubular part and having first ribs extending directly from the tubular part and second ribs transversely extending from the corresponding front protrusions, in turn, extending from the tubular part and perpendicular to the first ribs. The tubular part of the radiator has a cross section in the form of a rectangle with rounded corners. The radiator has a large number of fins, which increases its heat transfer. Such a radiator has a high resistance to internal pressure and can be used for heating systems with high coolant pressure [see Italian patent N ° 001710 for class F24H 3/06 published on 08/26/1999 in Bul. "Eurasian Patents for Inventions", 1999. - N ° 3].

 A disadvantage of the known radiator is its use of a significant amount of coolant and inefficient room air heating, which is carried out thanks to the air flow from the bottom up. When using a known radiator, the temperature in the lower part (near the floor) of the room is much lower than in the upper part (near the ceiling). However, for comfortable living conditions, a person requires that the temperature on the floor be at least 21 ° C. Therefore, in such a room, it is necessary to overheat the air in its upper part in order to heat the floor to the above temperature. This requires the use of a large amount of heat energy and, in general, significant energy consumption.

A radiator section is also known, containing horizontal heat exchange tubes fastened together by vertical fins, having a gap between the pipes from 1/3 to 1/2 of the length of the fins [see Patent of Ukraine N ° 49474 A for class F24H 3/00 published September 16, 2002 in Byul. "Industrial property in Ukraine." - 2002. - N ^Q 9].

This radiator requires significantly less heat carrier, however, it has the same drawback in heating the air flow from bottom to top as in the above radiator. The closest in essence and the achieved effect, taken as a prototype, is a heating device that includes horizontal heat-exchanging U-shaped pipes with transverse ribs fixed to them in the form of larger and smaller metal plates with the same gaps between the ribs, in which the upper and lower parts of the ribs are connected by jumpers with a size of a smaller rib 0.7-0.9 the size of a large rib, and finned tubes are connected into a coil with a vertical gap between the vertices of the ribs from 0.6 to 1, 2 depth us devices [see. copyright certificate СРСР N ^Q 1810726 according to class F24H 3/06 published on 01.05.1993 in Bull. N ^Q 15].

The main disadvantage of the known heating device is that it has a low efficiency of heating the air. This disadvantage is explained as follows. In it, cold air from the floor passes through the device, heats up on the surface of the ribs and rises vertically up to the ceiling. This disadvantage of all known heating devices requires significantly more heat for heating the air near the floor to a temperature of 20-21 ° C. At the same time, the temperature near the ceiling of the room reaches 28-30 ° C, as a result of which most of the heat is spent on heating the volume of the room in which the person is not located. In addition, the prototype device, like other and well-known heating devices, is attached to the external wall at a distance of several centimeters from it, s which allows part of the heat from the heater to be transmitted through the wall to the environment.

 The basis of the invention is the task of improving the design of the heating device to direct the flow of warm air from it to the floor, to reduce heat loss from the rear panel of the heater to the room wall, in which it is installed with reliable thermal contact of the plates with the pipe by changing the direction of the air flow inside the device casing and changing the place of blowing heated air from the device by changing the design of the casing and fins of the heating device.

SUMMARY OF THE INVENTION

The task is achieved in that the heating device, including horizontal heat-exchanging U-shaped pipes with transverse ribs fixed to them in the form of thin metal plates, according to the proposal, metal plates with one hole are fixed by tight fit separately on each branch of U- shaped pipe with a gap between them from 3 to 10 mm, and the housing has a gap on the rear panel in the lower part along its entire length with a width of 0.1 to 0.5 of its height, a screen concave into the body is placed in the lower part of the rear panel ca at an angle of 10 ° to 80 ° high from the bottom panel to the lower edges of the pla Stin, and on the front panel is placed from one to 10 slots along the entire length of the housing with a width of 0.05 to 0.5 of its height.

 The fins of the device are made in the form of thin metal plates with a fillet in the form of a fillet and are tightly fixed on heat transfer pipes with a gap between them of 3 to 10 mm.

 The plate area is 5–20 times larger than the pipe cross section and they have a hole made in the form of a fillet, the part of which in contact with the pipe has a length of 1 to 5 mm.

 The slots of the front panel are bent outward at an angle of 10 ° to 60 ° from the plane of the panel.

The housing of the proposed device has a back, front, two side and bottom panels. At the bottom of the rear panel there is a gap along the entire length and width from 0.1 to 0.5 of the height of the device. At the bottom of the slot there is a screen bent inwardly at an angle from 10 ° to 80 °, with a height from the bottom panel to the lower edges of the plates, which directs the air flow that is sucked into the heater from the rear panel to the plates of the heater due to the fact that it overlaps the gap between the bottom panel of the device and the lower edges of the plates, which prevents the passage of air flow in this unheated air gap. Thus, changing the direction of movement of the heated air from the heating device down to the floor, eliminating heat loss from the rear wall and ensuring thermal contact of the plates with pipe, significantly increases efficiency while reducing energy costs for heating the room.

 Design changes in the proposed heating device allow you to suck in a stream of cold air from the wall into its middle, heat it and direct the heated air to the lower part of the room. Thanks to this, the heating efficiency of the room and the reduction of energy costs for heating the room are improved.

 Thus, the entire set of essential features of the proposed solution regarding the introduced structural changes in the heating device, gave it new qualities and ensure the achievement of the technical result formulated in the statement of the problem.

The list of figures illustrative materials

Figure 1 - the proposed heating device, view of the front.

 Figure 1 is a section along the line aa of figure 1.

Description of a preferred embodiment of the invention

On each branch of a U-shaped horizontal heat exchange tube 1, ribs in the form of metal plates 2 with a thickness of 0.5 to 1.2 mm with one hole with a gap between them from 3 to 10 mm. The shape of the plates 2 can be different: square, rectangular and other. The area of the plates 2 may be 5-20 times larger than the transverse area of the pipe 1. The hole 3 in the plates 2 is made in the form of a fillet, a part of the length of which is from one to five millimeters in contact with the pipe 1. This design of the hole 3 provides a reliable thermal contact between the pipe 1 and the plate 2 without welding and orientates them vertically. Due to the thread at its ends, the metal U-shaped pipe is fixed with nuts in two holes of one of their side panels 4. The U-shaped end of the pipe 1 is fixed on the opposite side panel 4. This ensures a horizontal arrangement of pipes.

The casing of the heating device has two side 4, lower 5, rear 6 and front 7 panels. Panels 5, 6 and 7 are connected by screws or resistance welding in a single housing. Two side 4 and lower 5 panel can be made as a single whole panel. On the two side panels 4, the rear panel 6 is fixed so that it is also the upper part of the heating device. Between the lower edge of the rear panel 6 and the lower panel 5 there is a gap along the entire length of the heating device with a width of 0.1 to 0.5 of its height for entering cold air into the device. On the bottom of the rear panel 6, a screen 8 is fixed, bent into the middle at an angle from 10 ° to 80 °, which it covers the gap between the lower panel 5 and the lower edge of the plates 2, which ensures the flow of cold air from the slit of the rear panel directly onto the plates of the heater. The slots of the front panel 7 are bent outward at an angle of 10 ° to 60 ° from the plane of the panel.

 The device operates as follows.

 The cold air of the room is drawn into the gap between the lower edge of the rear panel 6 and the lower panel 5. The screen 8, curved inwardly at an angle of 10 ° to 80 °, directs the cold air to the heated plates 2, fixed with a hole 3 on the heat transfer tubes 1 which, in turn, are fixed on the side panels 4. Through gaps of 3 to 10 mm between the surfaces of the plates 2, heated air exits the device into the slots on the front panel 7. On the front panel 7 there are from one to 10 slots along its entire length width from 0.05 to 0.5 of its height. The slots for the exit of heated air have bent parts of the front panel 7 outward at an angle of 10 ° to 60 ° from the plane of the panel 7. This orientation of the slots on the front panel 7 directs the flow of warm air to the floor, heats it, and thus provides more high temperature in the lower part of the room.

The combination of all the listed features of the proposed device provides heating of the lower part and more comfortable conditions for humans. The proposed heating device has been tested experimentally in a heating system. In the tests carried out, the device demonstrated a high efficiency of heating the premises with less use of heat carrier than with the known heating devices and radiators.

 The proposed heating device does not contain any elements or components that could not be reproduced at the present stage of development of science and technology, in particular, in the manufacture of heating devices, therefore it is acceptable for industrial use, has technical and other advantages over known analogues, which confirms it is possible to achieve a technical result of the claimed object. In the well-known sources of patent and other scientific and technical information, no similar heating was found with the set of essential features indicated in the proposal, therefore, the proposed technical solution is considered such that it can receive legal protection.

Technical Advantages of the Invention

 The proposed technical solution for heating systems, in comparison with the prototype, has the following advantages:

- directs the flow of heated air to the floor and thereby increases the air temperature near the floor; - makes it possible to increase the efficiency of heat transfer to the plates due to the reliable contact of the plate openings on the pipe surface;

 - allows to reduce heat consumption from the rear panel of the device to the external wall of the room.

 After describing the proposed heating device, it should be apparent to those skilled in the art that all of the above is illustrative only and not restrictive as presented by this example. Numerous possible modifications and other manufacturing options of the proposed technical solution, in particular, the number of pipes and ribs, can vary in different proportions and, of course, are within one of the usual and natural approaches in this field of knowledge and are considered to be within the scope of this technical solution.

 Changing and using only certain elements of the device naturally limits the range of advantages listed above and cannot be considered new technical solutions in this field of knowledge, since other similar solutions no longer require any creative approach from designers and engineers. therefore, they cannot be considered the results of their creative activity or new objects of intellectual property corresponding to the protection of security documents.

 Yu

Claims

CLAIM 1. A heating device comprising horizontal heat transfer U-shaped pipes with transverse ribs fixed to them in the form of thin metal plates, characterized in that metal plates with one hole are fixed in a tight fit separately on each branch of U - a shaped pipe with a gap between them of 3 to 10 mm, and the casing has a slot on the rear panel in the lower part along its entire length with a width of 0.1 to 0.5 of its height; The screen is concave into the inside of the housing at an angle of 10 ° to 80 °, a height of about the bottom panel to the lower edges of the plates, and the front panel taken from one to the slits 10 along the entire length of the hull width from 0.05 to 0.5 of its height.  The device according to claim 1, characterized in that the plate area is 5 to 20 times larger than the transverse area of the pipe.  The device according to claim 1, characterized in that the hole in the plates is in the form of a fillet, a part of which in contact with the pipe has a length of 1 to 5 mm.  The device according to claim 1, characterized in that the slots of the front panel are bent outward at an angle of 10 ° to 60 ° from the plane of the panel. P