EP-4741719-A1 - HEATING COST DISTRIBUTOR, SYSTEM AND METHOD FOR OPERATING A HEATING COST DISTRIBUTOR

EP4741719A1EP 4741719 A1EP4741719 A1EP 4741719A1EP-4741719-A1

Abstract

The invention relates to a method for operating a heat cost allocator on a flow-through radiator, which forms a heating device with at least one operating element arranged on the radiator, wherein the operating element changes its heat output, wherein temperature measurements are recorded by the heat cost allocator using at least one temperature sensor, and a counting progress is determined from these measurements in successive measurement intervals based on a control set stored in the heat cost allocator and accumulated and stored in a storage area of the heat cost allocator, wherein at least one observation variable is recorded in each measurement interval by means of at least one sensor connected to the heat cost allocator and assigned to the at least one operating element, which represents an operating state of the operating element assigned to the sensor, and a state value is given by or determined from this, which represents the current operating state of the heating device, and the storage area is/is divided into several registers, and depending on the state value present in the measurement interval, the counting progress determined in the measurement interval is accumulated and stored in one of several registers of the heat cost allocator. The invention also relates to a system and a heat cost allocator for this method.

Inventors

Adick, Jörn

Assignees

ista SE

Dates

Publication Date: 20260513
Application Date: 20251016

Claims (20)

Method for operating a heat cost allocator (1) on a radiator (3) through which a heating medium flows, which forms a heating device with at least one operating means (4) arranged on the radiator (3), wherein the heat output of the heating device is changed by the at least one operating means (4), a. wherein temperature measurements are recorded with the heat cost allocator (1) by means of at least one temperature sensor (5, 6), preferably i. wherein a single temperature sensor (5) is used to record temperature measurements as a measure of the temperature of the radiator surface, or ii. wherein a first temperature sensor (5) is used to record temperature measurements as a measure of the temperature of the radiator surface and a second temperature sensor (6) is used to record temperature measurements as a measure of the temperature of the room air, or iii. wherein at least two temperature sensors, in particular one for the flow temperature and one for the return temperature, are used to measure the mean heating medium temperature of the radiator and a further temperature sensor is used to record temperature measurements as a measure of the room air temperature, b. and in successive measurement intervals from the at least one temperature measurement value (5, 6) recorded in the measurement interval, preferably from all temperature measurements, using a The heat cost allocator (1) determines the counting progress of the stored rule set and accumulates and stores it in a storage area (1d) of the heat cost allocator (1). characterized by the fact that c. by means of at least one sensor (2) connected to the heat cost allocator (1) and assigned to the at least one piece of equipment (4), at least one observation variable (7) is recorded in each measurement interval, in particular at least once, wherein the respective observation variable (7) represents an operating state of the equipment (4) assigned to the sensor (2), and d. a state value (ZW) is given by or from which at least one observation quantity (7) is determined, which represents the current operating state of the heating device, in particular its heat output, and e. the storage area (1d) in the heat cost allocator (1) is or is subdivided into several registers (R1,...,Rn), and f. depending on the state value (ZW) present in the measurement interval, the counting progress determined in the measurement interval is accumulated and stored in one of several registers (R1,...,Rn) of the heat cost allocator (1).
Method according to claim 1, characterized in that the state value (ZW) is formed from the at least one observation variable (7) in conjunction with at least one temperature measurement value recorded by the heat cost allocator (1) in the measurement interval.
A method according to one of the preceding claims, characterized in that, in the event of a change in the state value (ZW) within the measurement interval, in particular in the event of a change in the state value (ZW) beyond a predetermined minimum, a. the current measurement interval of the heat cost allocator (1) has ended and a new one has begun, or b. a single state value (ZW) valid for the entire measurement interval is formed from all state values (ZW) determined within the measurement interval, in particular by forming an average of all state values (ZW) determined within the measurement interval.
Method according to one of the preceding claims, characterized in that a means of production (4) is formed by: a. a device with which the air mass flow through and/or past the radiator can be changed, in particular a device with at least one blower and/or a device with at least one element influencing the flow resistance of the air mass flow, in particular with at least one flap, and/or b. a device with which the temperature of the heating medium located in the radiator can be changed, in particular an electrically operated heating element built into the radiator, preferably a heating cartridge/heating rod, and/or c. a device with which the temperature of the air passed through and/or past the radiator can be changed, in particular an electrically operated air heating element, preferably a heating register.
Method according to one of the preceding claims, characterized in that the at least one sensor (2) is used as the observation variable (7) a. an electrical operating parameter of the equipment (4), preferably a measured value representing the electrical power consumption ( PE ) of the equipment (4), is recorded and/or b. a measured value representing the mass flow rate of the air or heating medium is recorded, and/or c. a measured value representing a mechanical position of an actuating element of the equipment (4) is recorded.
Method according to one of the preceding claims, characterized in that in the counting progress of the heat cost allocator (1) the energy consumption from the primary energy source with which the heating medium of the radiator (3) is heated is recorded and the energy consumption from the primary energy source with which the change in heat output is effected by means of the at least one operating means (4) is recorded.
Method according to claim 6, characterized in that the temperature control of the heating medium flowing through the heating element (3) is carried out by a first primary energy source and a. the change in the heat output of the heating device by means of at least one operating means (4) is made by the same first primary energy source, or b. the change in the heat output of the heating device by means of the at least one operating means (4) is made by another second primary energy source,
Method according to one of the preceding claims, characterized in that the state value (ZW) is taken into account in the stored rule set for determining the counting progress.
Method according to one of the preceding claims, characterized in that the heat cost allocator (1) registers the unweighted counting progress.
Method according to one of the preceding claims, characterized in that the counting progress of the respective register (R1,...,Rn) is multiplied by a factor (F1,...,Fn) assigned to the register (R1,...,Rn) which represents the heat output of the heating device as a function of the state value (ZW).
Method according to claim 10, characterized in that the respective factor (F1,...,Fn) represents the heat output of the heating device as a function of the state value (ZW) under a predefined temperature-dependent operating condition.
Method according to one of the preceding claims 10 or 11, characterized in that the factor (F1,...,Fn) for a respective register (R1,...,Rn) is determined by calculation in the heat cost allocator (1) and values are used for the respective calculation which are wholly or partially transferred to the heat cost allocator (1) during manufacture, commissioning or during ongoing operation.
Method according to one of the preceding claims, characterized in that a specific evaluation factor (F1,...,Fn) for the assigned state value (ZW) is stored in the heat cost allocator (1) for each of the several registers (R1,...,Rn) and a counting progress evaluated with the evaluation factor (F1,...,Fn) is accumulated in each register (R1,...,Rn), in particular a consumption measurement value is accumulated.
Method according to one of the preceding claims, characterized in that at least one operating device (4) with several operating states, in particular with a predetermined number of discrete operating states, is assigned to the radiator (3) and the heat cost allocator (1) is parameterized externally with a number of registers (R1,...,Rn) or creates them itself, which is greater than or equal to the number of state values (ZW) resulting from the operating states.
Method according to one of the preceding claims, characterized in that at least one operating device (4) with several operating states, in particular with a predetermined number of discrete operating states, preferably from a set of operating devices (4) with a different number of possible operating states, is assigned to the radiator (3), wherein the heat cost allocator (1) determines the number of required registers (R1,...,Rn) during operation and stores them in an internal storage space (1d), in particular successively.
Method according to claim 14 or 15, characterized in that, in the case of continuously changing operating states of an operating device (4), the continuously changing observation variables (7) are converted into discrete state values or discrete register addresses of the registers (R1,...,Rn).
Method according to one of the preceding claims, characterized in that a predetermined number of n registers (R1,...,Rn), in particular with addresses 0 to (n-1) or 1 to n, are assigned to the heat cost allocator, preferably of which a number of m ≤ n are used in operation.
Method according to one of the preceding claims, characterized in that the number of registers (R1,...,Rn) assigned to the heat cost allocator (1) or the number of used registers (R1,...,Rm) is determined from a total number of all registers (R1,...,Rn) assigned to the heat cost allocator (1). a. is determined during installation, or b. during the operating time of the heat cost allocator (1) by discretizing the observation variables (7) or state values (ZW) occurring during the operating time.
Method according to one of the preceding claims, characterized in that in the heat cost allocator, in particular for discretization according to claim 16 or 18, a factor 1/a is present, the multiplication of which with the observed quantity or the state value after rounding or deletion of decimal places results in a natural number or 0, which corresponds to the address of the register to be used.
Method according to claim 19, characterized in that the factor 1/a a. is determined from a database based on the model of the radiator (3) and/or the model of the operating equipment (4) and transmitted to the heat cost allocator (1), or b. is determined by the heat cost allocator (1) itself from the difference between two different observation variables (7) or state values (ZW), in particular those that differ by a predetermined minimum amount.

Description

The invention relates to a method for operating a heat cost allocator on a radiator through which a heating medium flows, the radiator forming a heating device with at least one operating device arranged on the radiator, wherein the heat output of the heating device, in particular the heat output of the radiator of the heating device, is changed by means of the at least one operating device, wherein temperature measurements are recorded by means of at least one temperature sensor with the heat cost allocator and in successive measurement intervals a counting progress is determined from the at least one temperature measurement recorded in the measurement interval, preferably from all temperature measurements, on the basis of a control set stored in the heat cost allocator and accumulated and stored in a storage area of the heat cost allocator. The radiator through which the heating medium flows is preferably designed such that a liquid heating medium, e.g., water, flows through it, preferably with the heating medium flowing into the radiator via a supply connection and flowing out of the radiator via a return connection. The heating medium thus has a lower temperature at the return connection than at the supply connection. The preferred method for recording temperature measurements is to use a single temperature sensor to measure the temperature of the radiator surface. This is known as a single-sensor measurement method. Alternatively, a preferred approach is to use a first temperature sensor to take temperature readings as a measure of the temperature of the radiator surface and a second temperature sensor to take temperature readings as a measure of the temperature of the radiator surface. Temperature measurements are taken as a measure of the room air temperature. This is known as the two-sensor measurement method. Alternatively, a preferred approach is to use at least two temperature sensors, in particular one for the flow temperature and one for the return temperature, to measure the average heating medium temperature of the radiator, and a further temperature sensor to measure the temperature of the room air. This is known as a multi-sensor measurement method. The invention also relates to a system with a heating device comprising a radiator and an operating device, preferably an electrical or electromechanical operating device, with which the heat output of the heating device, in particular of the radiator of the heating device, can be changed, and with a heat cost allocator with at least one temperature sensor for recording temperature measurements and with a computing unit with which, in successive measurement intervals, a counting progress can be determined from the recorded temperature measurements on the basis of a stored rule set and can be accumulated and stored in a storage area of the heat cost allocator. The invention further relates to a heat cost allocator comprising at least one temperature sensor for recording temperature measurements and a computing unit with which, in successive measurement intervals, a counting progress can be determined from the recorded temperature measurements using a stored rule set and accumulated and stored in a storage area of the heat cost allocator. In an analogous manner to the method described above, it is preferably provided in the system or the heat cost allocator that temperature readings can be recorded with a single temperature sensor as a measure of the temperature of the radiator surface, or that temperature readings can be recorded with a first temperature sensor as a measure of the temperature of the radiator surface and with a second temperature sensor temperature readings as a measure of the temperature of the room air, or that a measure of the average heating medium temperature can be recorded with at least two temperature sensors, in particular one for the flow temperature and one for the return temperature. The radiator temperature can be detected, and with an additional temperature sensor, temperature readings can be recorded as a measure of the room air temperature. The measurement methods mentioned above for the process, the system and the heat cost allocator can preferably also be used in the invention. Radiators that form a heating device together with another operating element arranged on the radiator are already known in the prior art. For example, it is known to additionally insert electric heating elements into radiators through which a liquid heating medium flows. In such a case, the radiator and the at least one electric heating element form a heating device within the meaning of the invention. It is also known, for example, to support the convection of radiators by using a fan. In this case, the radiator, preferably through which a liquid heating medium flows, and the at least one fan form a heating device within the meaning of the invention. The latter heating devices are becoming increasingly widespread, particularly in combin