RU43626U1 - HEATING CONVECTOR - Google Patents

Abstract

The convector includes a heater (1), a casing (2) and a flap (24) with a rotary-locking device (36), which is rotary for regulating the air flow. The heater (1) is made in the form of two pipes (5) and (6) parallel to the heat carrier supply (hot water) (68), placed in one vertical plane and provided with the formation of channels (29) by transverse cooling fins (7) - rectangular with a central a hole of plates with a height of h = 0.015 ... 0.125 m, a width of b = 0.03 ... 0.1 m, a thickness of 0 = 0.00025 ... 0.001 m and with a placement step t = 0.01 ... 0.028 m provided that the pipes (5) and (6) have an outer diameter of d = 0.01 ... 0.04 m. The casing (2) has a front (16) and a back (17) panel, removably connected to the sidewalls (10 ) (12), in the holes (9) of which t Uba (5) and (6). Sidewalls (10) and (11) are L-shaped and are brackets. The rotary-locking device (36) is placed on the cantilever threaded part of the axis (30) of the shutter (24) and consists of an elastic ring element (37), a latch-pointer (38) and a pressure threaded element (39). Modification is possible in the form of a two-row section (front, intermediate and end) with the use of streamers (58) with a threaded connection - with the help of a coupling (58) or welding. Provides high specific heat transfer while simplifying the design and improving manufacturability. The parameters were obtained by mathematical modeling and confirmed by full-scale experimental studies. 7 s. P. f-ly, 12 ill.

Description

The utility model relates to the field of heat supply of residential, industrial and other buildings with a central water heating system, in particular to convection-type heating devices.

A convector is known (USSR author's certificate No. 207375, IPC F 24 H 3/10, publ. 12/22/1967), having a casing and a finned heater in the form of a curved pipeline, consisting of two parallel rectilinear sections located in the horizontal plane and one arcuate section, moreover straight sections are connected by a set of rectangular plates with two holes. A disadvantage of the known convector is its high material consumption and low specific heat transfer.

A more advanced convection type heating device is also known (certificate of the Russian Federation No. 9508 U1, IPC ⁶ F 24 D 19/00, publ. March 16, 1999) containing a heating element (heater) mounted on brackets made in the form of at least one (vertical ) a series of pipes (horizontally oriented) arranged one above the other for supplying coolant, equipped with cooling fins in the form of rectangular plates, a casing with an upper grille and a rotary damper with its drive handle for adjusting the air flow. The sides of the casing are connected to the brackets, and its front panel is L-shaped. Disadvantage of this

The known device design complexity, high material consumption and low specific heat transfer.

The objective of the utility model is to create a heating convector having a high specific heat transfer (heat output per unit mass) due to a mutual change in the linear parameters of the heater elements while simplifying the design, increasing its manufacturability and ease of use.

To solve the problem with the specified technical result, the heating convector contains a heater made of at least two parallel pipes for supplying a coolant, mainly hot water, located in one vertical plane and equipped with cooling fins in the form of plates with rectangular holes with one hole, and a casing containing the front and rear panels and sidewalls combined with brackets in which the heater pipes are fixed with a cantilever exit to the outside of their ends. A distinctive feature of the proposed utility model is that in the heating convector the cooling fins of the heater are made with a height h = 0.015 ... 0.125 m, a width b = 0.03 ... 0.1 m, a thickness δ = 0.00025 ... 0.001 m and fixed on the heater pipes with a step t = 0.01 ... 0.028 m, provided that the heater pipes have an outer diameter d = 0.01 ... 0.04 m, and the center of the hole of each cooling rib is aligned with the center of symmetry its contour, and the upper and lower cooling fins are placed in pairs in one of its transverse planes.

To increase heat transfer, the heating convector heater is equipped with an additional pair of pipes with cooling fins with the formation of an additional vertical row at the level of the main row.

To simplify installation (eliminating the need for tees), one of the adjacent ends of the lower pairs of pipes of a two-row heating convector, as well as the opposite adjacent ends of the pipes of the same vertical row, are respectively hydraulically connected to each other, while the hydraulic connection can be provided using removable rolls and threaded couplings.

To regulate the air flow with ease of manufacture, the heating convector is equipped with a rotary shutter located in the casing above the heater with a rotary locking device located on the outer threaded end of the axis of the rotary shutter and consisting of an elastic ring element, a plate retainer-pointer and a pressure screw element.

The essence of the utility model is illustrated by drawings, which depict:

figure 1 - heating convector (simplified modification in the form of a single-row intermediate section with pipes without connecting elements), General view with a partial section;

figure 2 is the same, a section aa in figure 1;

figure 3 is the same, an enlarged image of part of the section BB in figure 1;

figure 4 - the same (modification in the form of a single or double row equipped with a rotary valve intermediate or end, with

the presence of kalacha, sections with pipes having threaded connecting elements), a general view with a partial section;

figure 5 is the same (single row intermediate section), section bb in figure 4;

figure 6 is the same (two-row intermediate section), section bb in figure 4;

Fig.7 is the same (rotary damper), an enlarged cross section,

on Fig - the same (rotary-locking device for controlling the rotary damper), a longitudinal vertical section;

in Fig.9 is the same, view G in Fig.8;

figure 10 is the same (hydraulically interconnected intermediate and end single-row sections), General view;

figure 11 is the same (threaded connection kalach with pipe), part of a longitudinal section;

in Fig.12 - the same (hydraulically interconnected front, intermediate and end two-row sections), spatial image.

The proposed utility model is a heating convector, consisting of a heater 1 (Fig. 1; 2 and 3), a casing 2 and two brackets 3 and 4.

The heater 1 is made in the form of two parallel usually horizontally oriented pipes 5 and 6 for supplying a coolant,

located in one vertical plane equipped with cooling fins 7. Cooling fins 7 are identical rectangular plates with one central, i.e. coinciding with the center of symmetry of the outline of the plate, hole 8. Cooling ribs 7 are made with a height h = 0.015 ... 0.125 m, a width b = 0.03 ... 0.1 m, a thickness δ = 0.00025 ... 0.001 m and placed on pipes 5 and 6 with an outer diameter of d = 0.01 ... 0.04 m in increments of t = 0.01 ... 0.028 m when paired vertically, i.e. placed in the same current plane aa. The cooling fins 7 are fixed on the pipes 5 and 6 due to the fit (tightness) through the hole 8, and the pipes 5 and 6 themselves are fixed in the holes 9 in the sides 10 and 11 of the casing 2, for example by welding. The sides 10 and 11 are part of the L-shaped brackets 3 and 4, respectively, which on their supporting parts 12 and 13 has mounting holes upper 14 and lower 15. The casing 2 includes a front panel 16 and a rear panel 17, which have side bends 18 and 19 respectively, with mounting holes 20 and 21 for bolted connections 22 passing through the holes 23 of the sidewalls 10 and 11. All elements of the heating convector are made of steel, the front panel 16, as a decorative one, can be made entirely of non-metallic materials or in the form of an overlay element a (not shown).

A modification of the heating convector is possible (Figs. 4 and 5), in which its casing 2 is equipped with a rotary damper 24 or, in addition, its heater 1 is also equipped with an additional pair of pipes 25 and 26 (Fig. 6) placed in a vertical plane parallel to its main couple

pipes 5 and 6 at the same level and they are fixed, for example by welding, in the additional holes 27 of the sidewalls 10 and 11 of the casing 2 with their ends having an external thread 28 out. In this case, the cooling fins are 7 pairs of pipes 5 and 6 or both pairs of pipes 5 and 6; 25 and 26 are in the coincident transverse planes aa, forming vertical channels 29 for air passage between themselves, or with the sides 10 and 11 of the casing 2.

The rotary damper 24 (Fig. 7) consists of an axis 30 and a plate 31, interconnected by bolt connections 32, for example two, through holes 33 and 34, made respectively in the axis 30 and the plate 31. The rotary plate 24 is placed inside the casing 2 (in its upper part above the heater 1), is oriented by its axis 30 parallel to the pipes 5 and 6 (25 and 26) of the heater 1, the ends of its axis 30 (figure 4) are placed in coaxial holes 35 made in the sidewalls 10 and 11 of the casing 2. One from the ends of the axis 30 goes out and there is a rotary-locking device 36 for controlling detecting the rotary valve 24.

The rotary-locking device 36 (Figs. 8 and 9) includes (in the order of placement on the axis 30 in the direction of its proximal end) an elastic ring element 37, a latch pointer 38 and a pressure element 39. The elastic ring element 37 is made in the form of a split with divorced ring ends made of spring steel. The latch-pointer 38 is made of a plate with a bent end in the form of an arrow 40, which performs the function of a pen and a pointer at the same time, and has a hole 41 with an internal

protrusion 42 for engagement with the open (from above and from the end) longitudinal groove 43 of the cantilever outer part of the axis 30 of the rotary damper 24. In addition, the latch indicator 38 has a protrusion 44 directed to the side opposite to arrow 40 to provide alternate interaction with the recesses 45 on the outer surface 46 of the sidewall 11 of the casing 2. The recesses 45 are located at the same radial distance R from the geometric axis 47 of rotation of the retainer of the pointer 38 in an angular range of 90 (divisions can be applied near the recesses 45). The pressure element 39 is made in the form of a hollow cylinder with an internal jumper 48 with a central hole 49, radial protrusions 50 on the outer surface 51 and the internal thread 52 for interacting with the external thread 53 of the axis 30 of the rotary damper 24. The pressure element 39 is limited in its axial movement by a screw 54 passing through its hole 49 and screwed into the central threaded hole 55 of the axis 30.

For a single-row modification of the heating convector, the first and intermediate sections are structurally identical, only the end section is modified. When installing only two sections - the first 56 and the end 57 (figure 10), the latter includes a kalach 58 (tubular U-shaped connector) connected by welding to pipes 5 and 6 of heater 1, or connected to them using two threaded couplings 59 (11), if the end sections of the kalach 58 are provided with a thread 60.

For a two-row modification of the heating convector, the first 61, intermediate 62 and end 63 sections are structurally different (Fig. 12). In the first section 61, the lower pair of pipes 6 and 26 of the heater 1 with one of its ends (left) of the same name are connected hydraulically to each other (cam 58 when using welding or a threaded connection). In the end section 63, the ends of the same name (right) are the pairs of pipes 5 and 6, as well as 25 and 26, i.e. those located in one vertical plane are hydraulically interconnected by cams 64 and 65, respectively.

Section housings of all modifications of the heating convector can be equipped with grills on top (not shown in the drawings).

The work of the proposed model with sufficient completeness can be illustrated on a single-section single-row end (with kalach 58) of its modification, equipped with a rotary damper 24 (figure 4).

On the wall 64 of the heated room, the intermediate section of the heating convector is fixed using dowels 65 passing through the mounting holes 14 and 15 of its brackets 3 and 4. Connect the same (for example, right) ends of the pipes 5 and 6 of the heater 1 to each other through the kalach 58 using threaded couplings 59, turning the intermediate section into; end (such a connection can be made before fixing the section on the wall). Connect the opposite (left) ends of the same name with the pipes 5 and 6 of the heater 1 using threaded couplings 59, respectively, with the pipes of the heat supply network 66 and outlet 67. When the coolant is circulated (hot

water) 68 through pipes 5 and 6 of the heater 1 of the heating convector, heat is removed by cooling ribs 7 and transferred to the air 69 passing through the channels 29 from bottom to top, which, leaving the upper part of the casing 2, heats the room by natural circulation. Using the rotary damper 24, the heat transfer mode of the convector is regulated. This mode depends on its angular position in the casing 2 and is set using the rotary-locking device 36. For this, the pressure element 39 is rotated if the thread 53 of the axis 30 is right, counterclockwise, unloading the elastic element 37. Under the influence of the latter, the latch-pointer 38 moves to the right, which ensures the exit of its protrusion 44 from the recess 45 of the sidewall 11 of the casing 2. Applying force to the arrow 40, turn the latch-pointer 38 (and the rotary shutter 24 rigidly connected to it) by the required angle, and its engagement is the protrusion and 44, with a new recess 45, the sidewalls 11 are provided by turning the pressure element 39 clockwise. This compresses the elastic element 37 and moves the latch-pointer 38 to the left, after which the rotary damper 24 takes a new predetermined fixed position.

The parameters of the proposed heating convector are obtained by mathematical modeling and confirmed by full-scale experimental studies.

For example, according to experimental data for the proposed heating convector (single-section single-row):

1) at h = 0.015 m, b = 0.03 m, δ = 0.00025 m, t = 0.01 m, d = 0.01 m and the height of the front panel 16 N = 0.115 m, the specific heat transfer was 169.16 kcal / (h · kg);

2) at h = 0.125 m, b = 0.1 m, δ = 0.001 m, t = 0.028 m, d = 0.04 m and H = 0.4 m, the specific heat transfer was 141.4 kcal / (h · kg );

3) with an optimal combination of parameter sizes selected from the claimed range, the specific heat transfer reached 243.52 kcal / (h · kg).

For the prototype (“Comfort” type convector) with b = 0.055 · 2 = 0.110 m, b = 0.06 m, δ = 0.0005 m, t = 0.0075 m, H = 0.02 m and H = 0.215 m specific heat transfer was 68.92 kcal / (h · kg), which is significantly lower than the specific heat transfer of the proposed heating convector even with its non-optimal parameters.

Claims (8)

1. A heating convector including a heater made in at least two parallel pipes for supplying a heat carrier, mainly hot water, located in one vertical plane and provided with transverse cooling fins in the form of rectangular plates with one hole, and a casing containing a front and a back panels and sidewalls combined with brackets in which the heater pipes are fixed with a cantilever exit to their ends, characterized in that the cooling fins of its heater are made in height h = 0.015 ... 0.125 m, width b = 0.03 ... 0.1 m, thickness δ = 0.00025 ... 0.001 m and are fixed on the heater pipes with a step t = 0.01 ... 0.028 m, provided that the heater pipes have an outer diameter d = 0.01 ... 0.04 m, and the center of the hole of each cooling rib is aligned with the center of symmetry of its contour, and the upper and lower cooling ribs are placed in pairs in one transverse plane. 2. The convector according to claim 1, characterized in that its heater is equipped with an additional pair of pipes placed in a vertical plane parallel to the main pair of pipes at the same level with them, fixed with their ends coming out in the sides of the casing and equipped with cooling fins, all fins the cooling of both pairs of pipes are identical and are located in common transverse planes. 3. The convector according to claim 1 or 2, characterized in that the ends of the same name of the pair of pipes of its heater, located in one vertical plane, are hydraulically interconnected. 4. The convector according to claim 2, characterized in that the lower pair of pipes of its heater is hydraulically interconnected by one of its ends of the same name. 5. The convector according to claim 3 or 4, characterized in that the hydraulic connection of the same ends of the pairs of pipes of its heater is made with the help of a hook, detachably and hermetically connected to them, for example, using threaded couplings. 6. The convector according to claim 3 or 4, characterized in that the hydraulic connection of the same ends of the pairs of pipes of its heater is made with the help of a kalach, one-piece and hermetically connected to them, for example by welding. 7. The convector according to claim 1, characterized in that it is provided with a rotatable air flow control damper with a rotary fixing device, the rotary damper located in the upper part of the casing above the heater, oriented with its axis parallel to the heater tubes, the ends of the damper axis are coaxial the holes of the sidewalls of the casing, and the rotary-locking device is located on the cantilever end of the axis of the flapper outside the casing with the possibility of interaction with one of the sidewalls of the latter and the axis of the flap. 8. The convector according to claim 7, characterized in that the rotary-locking device with its rotary damper includes an elastic ring element, a retainer-pointer and a pressure element, wherein the pressure element has an outer surface with wave-like protrusions and an internal thread interacting with an external thread made on the cantilever end of the rotary damper, a latch-pointer is placed between these elements, made in the form of a plate with a bent arrow-shaped end, has a hole with an internal protrusion for engagement with open from the end of the longitudinal groove in the console part of the axis of the rotary damper and provided with a protrusion for alternately interacting with the recess on the outer surface of the sidewall of the casing at the same radial distance from the geometric axis of rotation of the plate.