Premises heating system

FIELD: system for heating premises with heated floor.

SUBSTANCE: system for heating premises with heated floor contains floor heating system and room thermostat, equipped with room micro-climate sensor and connected to controlling block of floor heating system. Room thermostat has surface temperature sensor, determining floor surface temperature at a distance from it. Room thermostat is equipped with block for selecting minimal/maximal surface temperature value.

EFFECT: improved temperature control in premises.

1 cl, 2 dwg

 

The present invention relates to a system of heating with heated floors, containing a floor heating system and the room thermostat, which is equipped with a sensor of the indoor climate and associated with the regulatory unit floor heating systems.

Similar to the heating system of the premises described, for example, in the brochure of the company Danfoss a/s Wireless regulation for floor heating (No.VD.78.3.02 January 2002). Room thermostat measures the temperature in the room and on the basis of its value controls the Underfloor heating system, resulting in the temperature of the air remains essentially constant.

There are various ways to run the Underfloor heating. Widely known, for example, floor heating systems using a fluid, in particular hot water. In this case, the control unit controls the flow flowing through the floor of the carrier, and the floor acts as a heat exchanger, which transfers heat from the coolant to the air.

According to another possible variant of the Underfloor heating system works on electricity. For this purpose floor impose a resistive heating element. The regulating device controls the current flowing through the resistive heating element shock. In this case, the floor also conveys the air of the high temperature created proteous the m through the heating element current.

For many people, space heating through the floor is very comfortable. However, the floor heating system inherent problems, not peculiar to the radiators. In particular, when the temperature control of the floor it is important to consider the type of flooring. For example, using wooden floor it is necessary to limit the maximum temperature to prevent drying of wood, and therefore damage to the floor. On the other hand, when the floor is ceramic tile, stone or slabs, it is desirable to maintain the temperature of the floor above some minimum level, so that the user's legs were not cold.

To determine the temperature of the floor, he built temperature sensor. In many cases this is done using a special cavity, for example, in the form of a tube, into which you can put the specified temperature sensor. However, this arrangement creates some problems with adjustment. Because of the characteristic for the floor of the inertia of the temperature change occurs a delay in the measurements, leading to delayed adjustment and the over-regulation. In addition, the location of the temperature sensor in the floor should choose very sparingly, as the subsequent equipment and decoration of the room can affect the temperature measurement. For example, if directly above the temperature sensor is to position the Cabinet, this Cabinet will reflect heat back into the floor, affecting the process of measuring the temperature of the floor.

Thus, the present invention is to improve temperature control in the room.

The problem is solved for mentioned in the introduction of the heating system due to the fact that the room thermostat is equipped with a temperature sensor surface, determining the temperature of the floor surface at a distance from him.

The specified temperature sensor surface is a "remote sensor", which can be placed at some distance from the floor. This eliminates almost all of the problems associated with placing a temperature sensor in the floor. In addition, the room thermostat combined with a temperature sensor surface with obtaining a compact element. This element if more traditional room thermostat, just a little, so the user is resizing almost imperceptibly. In addition, the invention simplifies the communication between the control unit and the sensor, i.e. the sensor of the indoor climate and the temperature sensor surface. When the location of these two sensors one after the other rather of a single transmission channel to the control unit. The location of the room thermostat can be chosen, taking into account the following two factors. what about the first the room thermostat must determine the temperature of the air in the room, and secondly, the temperature of the floor surface. This gives you more options when equipping the premises, so as structural measurements for positioning the sensor surface temperature requires significantly less effort than embedding a temperature sensor in the floor.

In the preferred case, the temperature sensor surface is an infrared sensor. Infrared sensor allows you to accurately determine the temperature of the floor surface, including from a distance. This infrared sensor is known, for example from the patent document DE 29716166. However, in this patent document is not intended to control the temperature of the closed space, as in the case of the present invention.

According to a preferred variant of the invention the room thermostat is connected to the regulating unit is wireless. This does away with the need for wiring for communication between the room thermostat and control unit, since wireless communication is carried out by means of electromagnetic waves, such as radio waves or light. This provides greater flexibility in the placement of the room thermostat in the room, which consists in the capacity and very rapid adaptation to changes in equipment and decoration of the room. It is only necessary that the temperature sensor "saw" floor, meaning that they could perform remote measurement.

Preferably, the room thermostat provided to the sensor surface temperature precedence in relation to the impact on the governing unit. In other words, the impact sensor surface temperature regulating unit higher than the impact sensor room thermostat. This is done to ensure that the floor temperature was critical for influencing the regulating unit.

In the preferred case, the room thermostat is equipped with a unit selection minimum/maximum surface temperature. Consequently the ability to limit the temperature or the minimum or maximum value. For example, if the floor has a wooden surface, the maximum temperature value is preferably set at 25°C. If, for example, room temperature should be 26°and for floor-mounted temperature 25°With the floor heating system will generate heat up until the floor temperature reaches 25°C. If the room temperature is below the specified value, for example, only 24° (in particular, because of the open window), and the floor temperature reached its maximum limit, then the heat will not be carried out. If the minimum EIT is giving temperature tiled floor in the bathroom is set in 27° (So that the feet were not cold) and the room temperature is set at a lower level, for example 23°With, off the Underfloor heating will occur only when the floor temperature will be at least 27°C. This is true also when exceeding the room temperature desired value, for example, from solar light in the room.

In the preferred case, the room thermostat is set at a height of 1.2 to 1.8 m from the floor. At this altitude the room thermostat is able to accurately identify, first, the temperature of the air in the room, and, secondly, the temperature of the floor surface, providing the required reliability of temperature control in the room.

Preferably, the distance from the room thermostat to the wall does not exceed 0,3 m This allows us to provide a very weak interaction with the furnishings of the room.

Preferably, the room thermostat determines the surface temperature at time intervals. In particular, in the case of wireless room thermostat with control block is not desirable to use wires for supplying energy to the room thermostat. So the power supply room thermostat operate using batteries. Their life should be as long as possible. If the temperature detection surface is rnost sex is not constant, the consumption of electric energy for this process will also be unstable. The intervals at which is the detection of the surface temperature can be pre-recorded. However, the right choice can also be provided to the user. Finally, it is possible to define these intervals by random number generator.

According to a preferred variant of the invention the room thermostat reports the values of the surface temperature regulating unit, only if the change in surface temperature exceeds a predetermined value. When data is transferred from the room thermostat to the control unit is relatively high electricity consumption. Therefore, such a transfer should be made only when necessary. This should happen only when such change of the surface temperature at which to maintain or restore the desired mode requires regulatory intervention block.

Preferably, the room thermostat passed values of surface temperature regulating unit only in the event of a change in average surface temperature by more than a predefined value within a predetermined period of time. For example, for a 15-30 minute period of time, you can make four and the intent. Only when raising or lowering the average value of this change is transmitted to the regulating unit. Thus, short-term impacts, such as those caused by solar radiation or present in the premises of the human or animal, will be held without additional energy consumption.

Hereinafter the invention is described in more detail by the example of the preferred option implementation described with reference to the attached drawings, on which:

figure 1 depicts the scheme of the heating system for multiple facilities;

figure 2 depicts the scheme of the heating system of the premises.

Figure 1 shows a diagram of the heating system 1 for the three areas 2, 3, 4, each of which is equipped with a system 5-7 floor heating. In this case, each system 5-7 heated floor-made in the form of heating of the pipeline, which is a curved pipe, embedded in plaster 8 sex 9 (see figure 2). These heating systems 5-7 circulates the heat transfer medium, for example hot water.

The supply of coolant to the systems 5-7 floor heating is combined with them through the inlet fitting. The control of flow of the coolant flowing through the system 5-7 floor heating, performs the control unit 11 connected to the systems 5-7 floor heating. The control unit 11 of each system 5-7 heating the Ola has operated valve 12-14. Depending on the degree of opening of the valves 12-14 systems 5-7 floor heating runs more or less fluid.

The action of the control module 11 is regulated by the control device 15. This device 15 is connected with the zonal controller 16, which by means of the elements 17A, 17b settings you can set some parameters related to the operation of the entire system 1.

Each room 2-4 equipped with a room thermostat 18-20 associated with the control device 15 via a wireless connection 21-23, which in addition to performing other functions sends to the device 15 controls the data about room temperature, i.e. the temperature of the air in the room. The desired temperature is set for each room 2-4 using the setting device 24-26. Zonal controller 16 is used for programming the device 15 controls.

Figure 2 shows that each room thermostat in addition to the setting device 24 is equipped with a sensor 27 indoor climate through which you can determine the temperature of the air in the room. Additionally, each room thermostat has a sensor 28, the temperature of the surface with which it is possible to determine the temperature of the surface 29 of the floor 9. The sensor 28 and the surface temperature is, for example, an infrared sensor, p is animalsi emitted from the surface 29 of the heat. For it is only necessary that the sensor 28, the temperature of the surface can "see" the surface 29, i.e. the desired relationship, for example, by radiation.

Condition temperature measurement floor 9 directly on its surface 29 adjusts floor heating more quickly. For example, when the surface 29 of the sunlight, its temperature increases. This increase can be adjusted by changing the coolant systems 5-7 floor heating. This applies also for the case of water on the floor, for example, when a person gets out of a bath or shower. First would have to wait for the drying of water, resulting in cooling of the floor, and then the change of temperature should reach integrated sensor. According to the proposed technical solution the sensor 28 surface temperature immediately detects water, which makes possible a rapid response.

You should take into account that the preferred value of the temperature of the surface 29 of the floor 9, among other factors, depends on the type of cover 31, which forms the floor surface 9.

If the coating 31 is made of wood, in order to avoid shrinkage of the wooden floor it is advisable not to exceed a preset temperature. For example, the surface temperature of 29 in this case should not exceed 29°C.

However, e is whether the coating 31 is formed of tiles or slabs, it is advisable to set some minimum temperature, for example 25°27°to the feet of the user was not cold when walking on the surface 29 of the floor 9.

Thus, the room thermostat should evaluate the signals not only from the sensor 27 of the indoor climate, but also from the sensor 28, the temperature of the surface. The user must decide whether to choose whether the specified minimum or maximum value of the surface temperature. As stated previously, the maximum value that must not be exceeded, asking, for example, for wooden floors, while for tiled floors set the minimum temperature.

It has become possible to provide processing of the output signals of the sensor 28, the temperature of a surface with a higher priority with respect to the output signal of the sensor 27 of the indoor climate. This can be specified already in the room thermostat 18, which will favour the transfer of zonal controller 16 signals from the sensor 28, the temperature of the surface. However, this priority can be installed in zone controller 16, or even in the control device 15. Together with the control device 15 and the control module 11 zonal controller 16 forms a regulating device affecting floor heating.

Briefly, this priority can be explained following the existing way. If the coating 31 is made of wood, the desired room temperature is set at 26°and the maximum floor temperature at 25°With the system 5 floor heating informs heat up until the floor temperature reaches 25°C. It is determined by the sensor 28, the temperature of the surface. If the room temperature falls to 24°With (e.g., open window), additional heat do not be, because the constraint imposes the temperature of the floor 9.

However, if the coating 31 is formed by a tile, the temperature of which must be at least 27°and the room temperature was set at 23°C, then the heat will be stopped only when the temperature on the surface 29 of the floor 9 will reach at least 27°Since, even if the solar radiation or the presence in the space of a few people has led to the increase in room temperature above the set 23°C.

Room thermostat 18 is installed at a height in the range from 1.2 to 1.8 m from the floor 9. The distance to the wall 32 on which it is fixed, does not exceed 0.3 m

The advantage of a wireless connection between the room thermostat 18 and the zonal controller 16 is not only to provide structural flexibility of the heating system 1. There are no problems associated with response n the changes in the equipment and decoration of each room 2-4. In addition, this system is easy to service because the user can easily determine whether the room thermostat 18 defects or not. Typically, this heating system 1 contains multiple room thermostats 18-20, and any other such room thermostats 18-20 can be used to determine whether the defect is specific room thermostat or the whole system. For example, to determine whether it functions or not the transmission channel between the room thermostat 18 and the control device 15 can be provided for use in the indoor thermostat 18 light-emitting diode and a button (for clarity of the drawing, they are not shown). When the button is illuminated diode, and the room thermostat 18 is trying to establish a connection with the control device 15. If the relationship between these two elements is possible, the diode turns off. Thus, the user can immediately see the connection is established or not.

Due to the fact that there is a connection between the room thermostat 18-20 and zonal controller 16 is wireless, the power of each room thermostat 18-20 is supplied by batteries. From the point of view of providing more long battery life, preferably to room thermostats 18-20 did not perform the measurement and transmission of data in a continuous mode.

On the volume measurement of the surface temperature is expected to perform at certain intervals of time. These intervals can be pre-recorded or you can install them in free mode. It is also possible to determine them by using a random number generator. If the measured temperature of the surface 31 is not subjected to large changes, data on the zonal controller 16 is not transmitted. Sudden changes in temperature (for example, from solar radiation or the presence of domestic animals), the perceived temperature sensor surface, can be easily filtered. To conserve energy and avoid too large fluctuations in heat supply increase in supply is impractical to make a sharp image. On the contrary, it is preferable to obtain the average value by a predetermined number of measurements and transmit information on zone controller 16, when the average value of reliable evidence about the temperature change.

1. The system of heating with heated floors, containing a floor heating system and the room thermostat, which is equipped with a sensor of the indoor climate and associated with the regulatory unit floor heating systems, characterized in that room thermostat (18-20) has a sensor (28) the surface temperature, which determines the surface temperature (29) sex (9) at a distance from him, with room thermostat (18-20) is equipped with the components is the minimum/maximum surface temperature.

2. The system according to claim 1, characterized in that the sensor (28) the surface temperature is an infrared sensor.

3. The system according to claim 1 or 2, characterized in that room thermostat (18-20) is connected with control unit (11, 15, 16) wireless manner.

4. The system according to claim 3, characterized in that room thermostat (18-20) provides sensor (28) the surface temperature of priority in respect of the impact on the governing unit(11, 15, 16).

5. The system according to claim 4, characterized in that room thermostat (18-20) installed at a height of (A) 1.2 to 1.8 m from the floor (9).

6. The system according to claim 5, characterized in that room thermostat (18-20) installed at a distance (In) to the wall (32)not exceeding 0,3 m

7. The system according to claim 6, characterized in that room thermostat (18-20) is arranged to determine the surface temperature at time intervals.

8. The system according to claim 7, characterized in that room thermostat (18-20) made with the possibility of message values of the surface temperature regulating unit (11, 15, 16) only when exceeding the temperature change of the surface of a pre-defined value.

9. System according to any one of claims 7 and 8, characterized in that room thermostat (18-20) made with the possibility of message values of the surface temperature regulating unit (11, 15, 16) only when the change in average temperature is arnosti more than predetermined value within a predetermined period of time.



 

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