WO2014094691A1

WO2014094691A1 - Connecting element providing connection of two heating radiator plates and a multi-row radiator

Info

Publication number: WO2014094691A1
Application number: PCT/CZ2013/000032
Authority: WO
Inventors: Tomáš HRDLIČKA; Miloš MENCLĺK
Original assignee: KORADO AS
Current assignee: KORADO AS
Priority date: 2012-12-17
Filing date: 2013-03-08
Publication date: 2014-06-26
Anticipated expiration: 2015-06-17
Also published as: CZ25616U1

Abstract

A connecting element (1) for connecting two heating plates (2,3) of the heating radiator (100), consisting of lateral connecting sockets (4,5) and of the first threaded connection bushing (6), that are arranged to form a T-shaped casing located around a central spherical part (7) of the connecting element (1), wherein the second threaded connection bushing (8) is fitted across the plane of the intersections of the principal axes (X,Y) of the attaching sockets (4,5) and the first threaded connection bushing (6) attached to the central spherical part (7) of the connecting element (1) for encapsulation of a hollow cylindrical insert (9) into the central spherical part (7) of the connecting element (1), for which there is a cylindrical seat (12) formed with lateral holes (13,14,15) introduced into the lateral connection sockets (4,5) and into the connecting threaded connection bushing (6), wherein a hollow cylindrical insert (9) is fitted with crosswise arranged radial holes (10,11), wherein the radial hole (11) is executed as a reduction bore.

Description

Connecting element providing connection of two heating radiator plates and a multi- row radiator

Field of the Invention

The present invention relates to a connecting element for connecting two heating plates of a radiator, consisting of lateral connecting sockets and of the first threaded connection bushing, usually fitted on the return branch of the heating system and which are arranged to form a T-shaped casing located around a central spherical part of the connecting element, and which are intended specially for multi-row plate radiator when importance is given on a higher thermal output of its front plate facing the heated room / space.

Description of the Prior Art Raccords for connecting two radiator heating plates are themselves known. The document DE 101 35 215 CI describes a plate radiator comprising at least two heating plates. Here, the centre holes of the heating plates that are mutually offset are assigned in the longitudinal direction individually in angle or as T-shaped casings, connecting and attaching bushings that are composed of spherical sections with connection sockets. The flow distribution inside the connection and attaching sockets makes sure that the heating medium seamlessly streams from the inlet into one of the heating plates and from other heating plate again to the outlet.

DE 299 80 186 Ul also describes a multi-row radiator with the connecting elements. A shut-off insert with a closing element can be introduced into the connecting element. To enable the shut-off insert to carry out the function of bleeding member, the end of the shut- off insert located in the neck comprises a sealing plate with a through hole which is closable by a sealing component carrying a spindle. On its front side, the shut-off part has corresponding vent holes, through which the air can stream out through the sealing plate.

One example of approach that consists in preferring higher heating output of the front heating plate facing a heated room at a multi-row heating plate radiator, is known from the published patent application (CZ PV 1998-2158), according to which the relevant double- row or multi-row heating plate radiator is preferably provided with a single inlet port, which is connected only with the front heating plate facing the heated room. The heating medium, which flows through this inlet port is distributed along the upper edge of the front heating plate and by means of suitably dimensioned feeding channels situated perpendiculary to them and that are preferably equally spaced in the front part facing the heated room. Regardless of whether the radiator is operated at full or partial load, the heating medium is in that way primarily supplied to the front heating plate and subsequently to the remaining heating plates of the multi-row heating plate radiator. Consequently, the front radiator plate will be warmer, thus presenting more pleasant touch feeling than existing systems. Preferably, this advantageous effect is even intensified by the fact that the front of the heating plate has a higher radiation ratio.

To facilitate the flow of heating medium from the front heating plate to at least one subsequent heating plate or similar item that are positioned behind it, at least one connecting element or possibly a tube is arranged in the system, and said connecting element is preferably located at the bottom front corner area of the radiator heating plate, from which then the partly cooled-down heating medium flows into the lower part of the second heating plate situated behind it or possibly into the subsequent plate in the case of the multi-row heating radiator. In this second heating plate the heating medium is supplied at first upwards to the upper longitudinal edge of the second or possibly the subsequent heating plate, where the liquid is again directed through the upper distribution channel provided and then is supplied by means of perpendicularly attached flow channels to its second lower corner area with a connected outlet port. However, it is supposed that the heating medium transfers the greater part of its heat to said front heating plate, while entering, already partially cooled, the second or subsequent heating plates, ensuring, in such a way, a reduced heating output.

The obvious drawback of this arrangement is that the control of the reduced heating output of the second or subsequent heating radiator plates of the multi-row heating unit can not be done. Another drawback of this solution consists in the fact that if compared with standard solutions of the multi-row heating radiators, where the hot heating medium streams equally to be cooled down, in all heating plates, the thermal performance of the entire heating plate radiator is generally lower because the hot heating medium flows into the front heating plate at first while a second or subsequent heating plates are supplied with already cooled- down heating medium, thereby reducing the heating output of the second and possibly subsequent heating plates. In terms of a controlled streaming of the heating medium into the multi-row heating radiator and with regard to the specific conditions in its partial load mode and in order to comply with achievable heating output and to increase comfort in the heated space and especially to improve the control possibility, a solution was proposed (PCT/EP2008/002963) which uses other valve in combination with one of the upper connecting elements that are connected to the inlet port of the heating medium, whereby it is possible to direct the mass flow of the heating medium to the second rear heating plate through an overflow connection, whereby the used connecting element is provided with internal screen. A disadvantage of the solution consists in using an overflow connection or overflow coupling, which significantly complicates and increases the production cost of multi-row heating radiators of such a design, and moreover, it causes problems with radiator cleaning for the end-user, and therefore the mentioned solutions did not prove enough in practice. Nature of the Invention

The purpose of the invention is to improve the connecting elements used for multi-row radiators and to introduce a radiator with such a connecting element. The shut-off or control inserts introduced in the connecting elements should be manufacturable particularly easily and inexpensively while another objective is to improve the process of controlling the flow of the heating medium through the radiator, in particular at the multi-row plate radiator with inlet port and outlet port of the heating medium and usually at the first heating plate facing a heated room / space and which is conceived as a fully passing- through plate, and with at least one subsequent heating plate situated in a row behind it with intended medium flow reduction for cutting down or controlling the heating output.

The specified task is achieved by the present invention, characterized in that the connecting element for connecting two heating radiator plates, consisting of lateral connecting sockets and of the first threaded connection bushing, usually fitted on the return branch and which are arranged to form a T-shaped casing located around a central spherical part of the connecting element, which has the second threaded connection bushing fitted across the plane of the intersections of the principal axes of the attaching sockets and of the first threaded connection bushing attached to the central spherical part for introduction of a hollow cylindrical insert into the central spherical part of the connecting element, for which there is a cylindrical seat formed with lateral holes inserted into both lateral connection sockets and attached threaded connection bushing, wherein the hollow cylindrical insert is fitted with crosswise arranged radial holes, wherein one of radial holes is executed as a reduction bore.

It appears advantageous that the hollow cylindrical insert is provided with a multisided recess in its upper part, while the hollow cylindrical insert is encapsulated sealed in a cylindrical seat under the threaded plug on the second threaded bushing.

Regarding the versatility and ease of production it appears advantageous that the hollow cylindrical insert is made of plastic.

To change the fundamental function of the connecting element it appears also advantageous that the hollow cylindrical insert situated under the threaded sealing plug is formed by a hollow cylinder that is impermeable in its seat in all directions.

Description of the Drawings Further advantages and effects of the invention are apparent from the attached drawings, wherein the individual figures depict:

Fig. 1 : oblique view of the connecting element in the exploded condition,

Fig. 2: cross section of the connecting element showing the hollow cylindrical insert in its basic angular orientation ensuring that the inflow or outflow of the heating medium, respectively, is carried out at one of the connection sockets through the reduction bore,

Fig. 3: longitudinal section of the connecting element with the positioning of the hollow cylindrical insert according to Fig. 2, Fig. 4: cross-section of the connecting element rotated by 180 degrees showing the basic angular orientation of the hollow cylindrical insert with the setting according to Fig. 2, Fig. 5: plan view of the connecting element without the threaded sealing plug

Fig. 6: schematic oblique view of a multi-row radiator with applied connecting elements.

Examples of the Versions of the Invention

A connecting element 1 to connect two heating plates 2,_3 of the radiator 100, consists of the lateral connecting sockets 4,5 and of the first threaded connection bushing 6, usually fitted on the return branch of a not depicted heating system and which are arranged to form a T-shaped casing located around a central spherical part 7 of the connecting element i.

According to the invention, the second threaded connection bushing 8 is fitted across the plane of the intersections of the principal axes X of the attaching sockets 4,5 and of the auxiliary axe Y of the first threaded connection bushing 6 attached to the central spherical part 7 of the connecting element I for introduction of a hollow cylindrical insert 9 into the central spherical part 7 of the connecting element \, for which there is a cylindrical seat 12 formed with lateral holes 11,14,15, emptying into the lateral connection sockets 4,5 and into attached threaded connection bushing 6, wherein a hollow cylindrical insert 9 is fitted in its basic version with crosswise arranged radial holes !0,UL_ wherein the radial hole Π. is executed as a reduction bore.

The lateral holes 13,14,15 in the seat 2 may be variously profiled, for example with a square cross section, which depends only on how the insert (here not described in detail) with the seat 12 is created, and whether it is made of suitable heat-resistant injection plastic, or manufactured by stuffing own material of the connecting element 1, etc. The profiles of radial holes 10,11 in a hollow cylindrical insert 9 are accordingly adapted to the chosen manufacturing method. For specific purposes, for example, such as the use of the connecting element 1 as a closing element of the heating medium transfer between the radiator plates 2,3 of the multi-row radiator, the hollow cylindrical insert 9 in cylindrical seat 12 can be impermeable in all directions, i.e. without the radial holes 10,11. The hollow cylindrical insert 9 is provided on its upper part for example with a multisided actuation recess 16, designed for encapsulating the hollow cylindrical insert 9 in its cylindrical seat 12 for its appropriate angular positioning in order to align appropriately the radial holes 10,J_1_ of the hollow cylinder 9 with lateral holes 13,14,15 in the cylindrical seat 12 corresponding to the requested throttling of the heating medium flow from the socket 4 or 5, respectively, or in order to make the connecting element 1 fully passable in its main longitudinal axis X· The actuation recess 16 is conceived for the indication element (not depicted in more detail) to control the angular position of the cylindrical insert 9, or has different modified shape.

In the indicated embodiment, the hollow cylindrical insert 9 is encapsulated in its cylindrical seat 12 under the threaded sealing plug 17 on the second threaded bushing 8. The hollow cylindrical insert 9 is made for example of heat-resistant plastic. The size of the reduction hole Π_. is specified by the relevant calculations for the proposed reduction of the heating output by the any one heating plate 3 of the radiator 100, etc.

The connecting element 1 (Fig.6) is situated in the contact position between the two radiator plates 2,3 of the heating radiator in the area where the heating medium flows out through the first connecting threaded bushing 6, where it can be completed by a standard threaded plug J_8 connected in a series, etc. As can be seen from Fig. 6, except the inflow connecting element, the other connecting elements 1 are, as not passing-through, situated at the corners of the radiator 100 and equipped with internal screens (here not described in detail).

Detailed description of the functions of all the different arrangement variants of the connecting element 1, as well as its integration into various systems of connection of the radiator 100 to the heating system, the equipment with additional elements, etc., is not described in detail, because the topic is familiar for experts in the field.

Claims

P A T E N T C L A I M S

1. A connecting element (1) for connecting two heating plates (2,3) of the heating radiator (100), whereby said connecting element consists of lateral connection sockets (4,5) and of the first threaded connection bushing (6), usually fitted on the return branch of the heating system that are arranged to form a T-shaped casing located around a central spherical part (7) of the connecting element (1), characterized in that the second threaded connection bushing (8) is fitted across the plane of the intersections of the principal axes (X,Y) of the attaching sockets (4,5) and of the first threaded connection bushing (6) attached to the central spherical part (7) of the connecting element (1) for encapsulation of a hollow cylindrical insert (9) into the central spherical part (7) of the connecting element (1), for which there is a cylindrical seat (12) formed with lateral holes (13,14,15) inserted into the lateral connection sockets (4,5) and into the connecting threaded connection bushing (6), wherein the hollow cylindrical insert (9) is fitted with crosswise arranged radial holes (10,1 1), wherein the radial hole (1 1) is executed as a reduction bore.

2. The connecting element (1) according to claim 1, characterized in that the hollow cylindrical insert (9) is provided with a multisided actuation recess (16) on its upper part.

3. The connecting element (1) according to claim 1, characterized in that the hollow cylindrical insert (9) is encapsulated in its cylindrical seat (12) sealed under the threaded sealing plug (17) on the second threaded connection bushing (8).

4. The connecting element (1) according to claims 1 and 3, characterized in that the hollow cylindrical insert (9) is made of plastic.

5. The connecting element (1) according to all precedent claims, characterized in that the hollow cylindrical insert (9) situated under the threaded sealing plug (17) is formed by a hollow cylinder that is impermeable in its seat (12) in all directions.