DE102007043714A1 - Under-floor heater for use in bathroom of building, has distributors with regulating valves for heating circle of rooms switched between heat transfer medium lines of pump and rooms, where heating load is divided into basic and full loads - Google Patents

Abstract

The heater has a heat pump provided as a heat generator, and pipelines laid in individual rooms of a building. The pipelines pass a heat transfer medium heated by the generator. Distributors with regulating valves for a heating circle of the rooms are switched between heat transfer medium lines of the heat pump and heat transfer medium lines of the rooms of the building. A heating load of the rooms to be heated is divided into a basic load and a full load. The basic load is covered by a separate heating circle and supplied with a main load over the circle with individual room regulation.

Description

The The invention relates to a floor heating in a building, consisting of a heat pump as a heat generator as well as in the individual rooms of the building laid pipelines of the heated by the heat source heat transfer medium flows through are, being between the heat transfer lines the heat pump and the heat transfer lines the individual rooms of the building Distributor with control valves for each heating circuit of each individual room are connected.

underfloor heating, those with heat pumps as heat generator are fed, are known in the art. Here is the Heat energy over one Supplied heat transfer medium, the through the heat pump heated will and over a distributor is supplied to the individual heating circuits of the building. The individual heating circuits are over led in the manifolds arranged heating circuit valves. This acts these are thermostatic valves which, when the room set temperature is reached shut down, so that the corresponding heating circuit does not continue with heat transfer medium flows through becomes.

Heat pumps need to achieve optimal performance and lifetime a permanent Energy demand. However, this is due to the prescribed individual room control affected in accordance with EnEV. When the room set temperatures are reached, the heating circuit valves close independent. As a result, no energy is removed from the floor heating. This leads to increased return temperature to the heat pump recycled heat transfer medium. in the Optimal case is a spread of 5K between heating flow and return assumed.

As a result the heightened Return temperature goes the heat pump on error.

The EnEV counteracts the principle of the heat pump in a certain sense. While namely the EnEV assumes that you save energy only if you is not consumed, a heat pump works most efficiently, when passing through at very low flow temperatures. Around now, despite the existing EnEV, to enable the operation of heat pumps, should be used so-called buffer memory, which at Zero load of the heater sufficient volume for the permanent from the heat pump further pumped amount of water to disposal put. Such buffers are expensive and require one correspondingly large Installation space, which is why often is dispensed with such buffer memory. It is also known that in some installations to the required according to the EnEV individual room control for underfloor heating is waived. In such cases then the amount of water in the floor heating works as a buffer. This solution sets however for Each construction project requires that an exemption from the EnEV by the responsible district president he follows. This is very bureaucratic and tedious and therefore not practicable on a larger scale.

outgoing From this prior art, the invention is based on the object a floor heating to create that with a heat pump can be operated as an energy supplier without disturbing the heat pump occur, which is to be dispensed with a buffer memory and nevertheless, the individual room control required by the EnEV for underfloor heating is maintained.

to solution this task strikes the invention provides that the heating load of each room to be heated is broken down into a base load and a full load, with each room a separate heating circuit for the Base load and full load, the base load on the separate heating circuit is permanently covered and only the main load over the associated Heating circuit with individual room control can be fed.

Prefers is provided that the heating load of each room to be heated into a base load for a room temperature between 1 ° C and 15 ° C and a full load for a room temperature over 15 ° C decomposed is.

According to this solution the heating load of each room to be heated is possibly except of the bathroom, disassembled into a base load, for a room temperature between 1 ° C and 15 ° C is designed and a full load, designed for a room temperature of over 15 ° C is. The base load is in each room via a separate heating circuit permanently covered. The base load is therefore not over one Individual room control led. The full load is over a second heating circuit only when needed, so in case of sinking the room set temperature, over the individual room control switched on. This training does not work only the advantage of having the heat pump trouble-free can be operated, as a permanent heating circuit is available, but through this training, the advantage is achieved that a cool down the corresponding rooms below the base load temperature is prevented. Consequently, the Heating rate increased to full load and the overall energy consumption significantly reduced.

A second solution The task is that in addition to the controlled heating circuits every floor of the building a ring line is laid in the floor, which is permanently attached to the Heat pump connected is.

Prefers It is envisaged that the loop along the outer walls of the Rooms of the floor guided is.

According to this Education stands for the trouble-free Operation of the heat pump a permanent underfloor heating circuit to disposal, the as a loop through all Facilities, possibly with the exception of the bathroom, a floor is led. This loop runs preferably along all exterior walls and is not over led the individual room control, so that a permanent operation is possible. The heating load of each Space is traditionally over covered up to two regulated heating circuits.

According to this solution is achieved that the heat pump trouble-free can be operated. In addition, also here by the permanent Energy supply via the ring-line ensured a certain ground warming, in addition to that leads, that in controlled heating via the regulated heating circuits the heating rate is increased to the desired room temperature and the energy consumption is reduced.

In both cases it can be provided that at least one room, in particular the Bathroom, no separate heating circuit for the base load or none Ring line has.

Claims (5)

Underfloor heating in a building, consisting of a heat pump as a heat generator and laid in the individual rooms of the building pipelines, which are flowed through by the heat generator heated by the heat transfer medium, wherein between the heat transfer lines of the heat pump and the heat transfer lines of the individual rooms of the building manifolds with control valves for each heating each Individual room are connected, characterized in that the heating load of each room to be heated is divided into a base load and a full load, each room has a separate heating circuit for the base load and full load, the base load is permanently covered by the separate heating circuit and only the Main load can be supplied via the associated heating circuit with individual room control. underfloor heating according to claim 1, characterized in that the heating load each room to be heated into a base load for a room temperature between 1 ° C and 15 ° C and a full load for one Room temperature from above 15 ° C decomposed is. underfloor heating according to the preamble of claim 1, characterized in that additionally to the controlled heating circuits of each floor of the building one Ring line is laid in the floor, which is permanently connected to the heat pump connected. underfloor heating according to claim 3, characterized in that the ring line along the outer walls of the Rooms of Floor led is. underfloor heating according to one of claims 1 to 4, characterized in that at least one room, in particular the bathrooms, no separate heating circuit for the base load or none Ring line has.