JPS5919249B2 - heating device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The invention relates to a heating device comprising a pipe network having an outgoing and a return conduit and at least one heating element having an adjustable valve, the closing part of said valve being adjustable by means of a heatable working member using a heating resistor, said heating resistor being connected via two electrical connections to a disconnectable power source, one of said electrical connections; starts from the type that is formed by using a network of pipes.

In known heating devices of this type, the heating resistor is arranged in the immediate vicinity of the working element, which is filled with expanding substance.

The working element can thus be adjusted by heating.

In the case of thermostatic valves, which are normally influenced by the indoor air temperature, a temperature drop for the night is thus achieved by slightly heating the working part.

Such a heating element is connected via two electrical conductors to a disconnectable or adjustable power supply.

In this case, one of the electrical conductors is constituted by a network of pipes.

This has the advantage that conductor material is saved.

However, in this case it is necessary to install separate electrical conductors in each joint.

It is therefore an object of the invention to carry out both connections of the heating resistor for heating the working parts of the valve exclusively via a network of conduits, without the use of separate electrical conductors.

To achieve this object, the invention provides a configuration in which the pipe network is comprised of pipes electrically insulated from each other by an insulating pipe piece assigned to the power supply and an insulating pipe piece arranged corresponding to the valve. an insulating tube section which is electrically connected to the conduit network on both sides of the insulated tube section which is divided into mesh sections and the heating resistor is placed belonging to the valve and the power source is placed belonging to the power source itself; It was electrically connected to the conduit network on both sides.

Accordingly, the configuration of the present invention eliminates the need for the installation of a separate electrical conductor, which was conventionally required, resulting in further savings in conductor material and lower installation costs for the heating device.

Furthermore, it is only necessary that the heating resistors for heating the working parts of the valve be electrically connected to both pipe network sections on both sides of the insulating pipe piece arranged belonging to the valve, in which case the double-pipe heating In the system, the heating resistors are connected in parallel; in single-tube heating systems, the heating resistors are connected in series, making it unnecessary to lay electrical conductors within the building or from room to room.

Advantageously, the insulating tube piece associated with the valve is located in the immediate vicinity of the valve, so that the connection between the heating resistor and the line network section is considerably shortened.

Furthermore, it is advantageous if the insulating tube piece associated with the valve is located directly against the valve housing.

It is particularly advantageous if one connection part of the heating resistor is electrically conductively connected to the valve housing.

Furthermore, in a preferred embodiment of the invention, the metal threaded connection for connecting the pipe network sections of the pipe network is attached to the valve housing via an insulating pipe piece belonging to the valve;
The other connecting member of the heating resistor is electrically conductively connected to the threaded connection.

The valve is therefore provided as a pre-assembled item and, including the insulating tube piece, can be easily integrated into the pipe network.

Next, embodiments of the present invention will be specifically described using the drawings.

In the heating system shown in FIG. 1, a heating boiler 1 having an oil burner 2 is provided.

Hot water is supplied using a pump 3 to an incoming conduit 4 and a separate connecting conduit 5.
It is guided to the heat sink 6 via.

This heat sink is connected via a connecting line 7 to a return line 8 which itself leads to the heating boiler 1 .

One thermostatic valve 9 is installed in front of each heat sink 6.
is connected.

This thermostatic valve 9 has, in the usual manner, a bellows box-shaped working member 10 filled with an expanding substance, for example liquid vapor.

An electrical heating resistor 11 is arranged in the vicinity of each working element, which is connected via a first connecting element 12 to a connecting line 5 and via a second connecting element 13. is connected to the valve casing 14.

A first insulating tube piece 15 is connected in front of each thermostatic valve 9 .

Furthermore, the pipe network section 1 on the heat radiator side of the pump 3 and the outgoing pipe 4
A second insulating tube piece 16 is connected between the two insulating tubes 7 and 7.

The network therefore consists of two network sections electrically insulated from each other, one network section being connected to the incoming conduit 4.
, and the other network section is the entire remaining network section including the return conduit 8 .

The low-voltage side of the power supply 18, for example a transformer, is connected directly to the return line 18 via a conductor 19 on the one hand and via a conductor 19a with a switch 20 and a time switch 21 to the radiator side of the output line 4 on the other hand. It is connected to the pipe network section 17.

In this manner, when the switch 20 is switched on and the time switch 21 is connected, a current is supplied to the heating resistor 11, in which case both pipe network sections of the pipe network are connected to electrical outgoing or return conductors. useful as.

For example, a thermostatic valve can be influenced by the ambient room temperature to maintain the temperature of the room to be heated at a predetermined target value.

Such a target value is automatically lowered by passing an electric current through the heating element, thus obtaining a nighttime temperature drop.

FIG. 2 shows the construction of the thermostatic valve shown in FIG.

The thermostatic part 22 of the thermostatic valve attached to the conduit has a rotary knob 23 with a cover plate 24 and an air passage opening, not shown.

The thermostat part is fastened to the metal casing 1 by means of a tightening band 25 and a corresponding tightening device 26.
It has been fixed at 4.

The first threaded connection 27 with an internal thread is part of the casing 14 .

A second screw-out connection 28 made of metal and having an external thread is connected to the housing 14 via an insulating tube piece 15 .

The sleeve nut 29 is a normal type with a threaded addition part 30.
is held firmly.

A first shell-shaped clamping element 31 connected to the connecting element 12 forms an electrical contact to the threaded connection 28 and thus to the conduit network section 1γ on the heat sink side of the inlet conduit 4.

The second shell-shaped clamp connected with the connecting element 13 forms the electrical connection of the element 32 to the casing 14 and thus to the return conduit 8. 3 When using a thermostatic valve of the above type, To form the electrical connection to the heating resistor 11 of the thermostatic valve, it is only necessary to insert the second insulating tube piece 16 into the pipe network.

In single-pipe heating systems, there are more sections of the pipe network that are electrically isolated from each other.

In this case, these pipe network sections and the heating resistor are connected in series.

The heating resistor can, for example, be arranged elsewhere on the valve.

[Brief explanation of the drawing]

The drawings show embodiments of the present invention, and FIG.
FIG. 2, a schematic diagram of a heating device according to the invention, shows a thermostatic valve according to the invention for a heating device of the type mentioned above. 1... Heating boiler, 2... Oil burner, 3... Pump, 4... Outgoing conduit,
5... Connection conduit, 6... Heat sink, 7.
...Connecting conduit, 8...Return conduit, 9...
...Thermostat valve, 10... Working member, 11... Heating resistor, 12 and 13...
・Connection member, 14...Valve casing, 15 and 16...Insulating tube piece, 17...Pipe network section, 18...Power source, 19 and 19a---
・Conductor, 20...Switch, 21...
Time switch, 22...Thermostat section,
23...Rotation nof'', 24...Lid plate,
25...Tightening with band, 26...Tightening with device, 27 and 28...Threaded connection part, 29
... Sleeve nut, 30 ... Threaded additional part, 31 and 32 ... Tightening is a member.

Claims (1)

[Scope of Claims] 1. A heating device comprising a pipe network having an outgoing conduit and a return conduit and at least one heat radiator having an adjustable valve, the closing part of the valve being controlled by means of a heating resistor. adjustable by a heatable working member, said heating resistance comprising:
connected to the disconnectable power supply via two electrical connections, one of which is formed by using a network of pipes, the network of pipes being It is divided into pipe network sections that are electrically insulated from each other by an insulating tube piece 16 placed in connection with the power supply and an insulating tube piece 15 placed in connection with the valve, and a heating resistor 11 assigned to the valve. An insulating tube section 15 arranged as a power source is electrically connected to the conduit network on both sides, and a power source 18 is electrically connected to the conduit network on both sides of an insulating tube section 16 arranged as belonging to the power source itself. A heating device characterized by: 2. Heating device according to claim 1, in which the insulating tube piece 15 arranged in association with the valve is located in the immediate vicinity of the valve. 3. Claim 2, in which the insulating tube piece 15 arranged in association with the valve is located directly in contact with the valve casing 14.
Heating device as described in section. 4 One connecting member of the heating resistor 11 is connected to the valve casing 14
The heating device according to claim 1, wherein the heating device is electrically conductively connected to the heating device. 5 A metal threaded connection 28 for connecting the pipe network sections of the pipe network is attached to the valve housing 14 via an insulating tube piece 15 belonging to the valve and is connected to the heating resistor 11.
5. The heating device according to claim 4, wherein the other connecting member is electrically conductively connected to the threaded connection.