公开(公告)号：US11149964B2

公开(公告)日：2021-10-19

申请号：US16269918

申请日：2019-02-07

Applicant: GRUNDFOS HOLDING A/S

Inventor： Agisilaos Tsouvalas ,  Casper Hillerup Lyhne

IPC: F24D19/10 ,  F24F11/63 ,  G05B15/02 ,  G05D23/19

Abstract: A hydronic system (1) includes a side (3) with a first port (21) connected with a source element output (23), a second port (27) connected with a source element input (29), and a controllable primary side flow actuator (9) for providing a primary side flow (q1). Another side (5) has a third port (31) connected with a load element input (33), a fourth port (35) connected with a load element output (37), and a controllable secondary side flow actuator (13) providing a secondary side flow (q2). A transfer element (17) is connected with the first port, the second port, the third port and the fourth port. A flow control module (39) adapts a transfer element thermal power transfer by controlling the primary side flow actuator and/or the secondary side flow actuator by minimizing a signed deviation value (ΔΔv) that is correlated with the transfer element thermal power transfer.

公开(公告)号：US20160238261A1

公开(公告)日：2016-08-18

申请号：US15029309

申请日：2013-10-14

Applicant: GRUNDFOS HOLDING A/S

Inventor： Casper Hillerup Lyhne

IPC: F24D19/10

Abstract: The present invention relates to a method for controlling a pump for feeding fluid (F) into a heating system (1000). The heating system has a hot fluid tank (HFT) receiving fluid from an associated fluid reservoir line (5) with an incoming fluid mass flow rate (dmcw/dt). A pump (P) receives fluid from the line, and pumps the received fluid with amass flow rate (dmc/dt). A heat exchanging unit (HX) transfers heat (Q) to the fluid (F) from a medium (R). The transferred heat (Q) is maximized by controlling the pump (P1) in response to this information indicative of the transferred heat (Q), the fluid mass flow rate delivered by the pump thereby having a minimum as a function of the incoming fluid mass flow rate (dmcw/dt) when maximizing the transferred heat. The invention provides significantly improved heat transfer to the fluid and power savings for the pump. The invention also relates to a heating system, e.g. a heat pump system.

Abstract translation: 本发明涉及一种用于控制用于将流体（F）供给到加热系统（1000）中的泵的方法。 加热系统具有从相关联的流体储存管线（5）接收流体的热流体箱（HFT），其具有进入的流体质量流量（dmcw / dt）。 泵（P）从管线接收流体，并且以积分流速（dmc / dt）泵送所接收的流体。 热交换单元（HX）从介质（R）将热（Q）传递到流体（F）。 通过响应于表示转移热量（Q）的信息控制泵（P1），转移的热量（Q）最大化，由泵输送的流体质量流量作为进入流体质量的函数具有最小值 流量（dmcw / dt）最大化转移的热量。 本发明提供了显着改进的流体传热和泵的功率节省。 本发明还涉及一种加热系统，例如， 一个热泵系统。

公开(公告)号：US10801503B2

公开(公告)日：2020-10-13

申请号：US16034820

申请日：2018-07-13

Applicant: GRUNDFOS HOLDING A/S

Inventor： Casper Hillerup Lyhne

IPC: F04D15/00 ,  F04D15/02 ,  F04D13/14 ,  F04D1/04 ,  G05B15/02 ,  G06F17/14

Abstract: A multi-pump control system includes a processing module, a communication interface, a storage module and a control module configured to ramp up a speed of k pumps in addition to a subset j of i pumps of a system comprising N pumps running at a speed ωj providing a total head Δp, wherein N≥2, 1≤k

公开(公告)号：US10794384B2

公开(公告)日：2020-10-06

申请号：US16034875

申请日：2018-07-13

Applicant: GRUNDFOS HOLDING A/S

Inventor： Casper Hillerup Lyhne

IPC: F04D15/00 ,  F04D15/02 ,  F04D13/14 ,  F04D1/04 ,  G05B15/02 ,  G06F17/14 ,  E03B5/00

Abstract: A multi-pump control system includes a control module, a processing module, a communication interface, and a storage module. The control module runs n different subsets of i pumps of a multi-pump system including N pumps during n different configuration cycles at a speed ωj, wherein N≥2, 2≤n≤2N−1 and 1≤i≤N. Each configuration cycle j∈{1, . . . , n} is associated with a subset j∈{1, . . . , n} and a speed ωj. The communication interface receives signals indicative of operational parameters from each subset j during the associated configuration cycle j. The processing module determines an approximated pump characteristic Δp=f(q, ωj) based on the received signals for each subset j and under an assumption that the i pumps of each subset j share the same part q/i of a reference flow q. The storage module stores the approximated pump characteristic Δp=f(q, ωj) or parameters indicative thereof.

公开(公告)号：US11002458B2

公开(公告)日：2021-05-11

申请号：US16485300

申请日：2018-02-14

Applicant: GRUNDFOS HOLDING A/S

Inventor： Casper Hillerup Lyhne ,  Peter Elvekjær

IPC: G05D23/19 ,  F24F11/00 ,  F24F11/63 ,  F24F11/58 ,  F24F110/10

Abstract: A method carries out an outside temperature-dependent control of at least one thermal power indicative parameter of a supply temperature of a first heating or cooling system in a first building (H). The control is carried out on the basis of the at least one thermal power indicative parameter. The at least one thermal power indicative parameter is indicative of the heat consumption or of the cooling power of at least one second heating or cooling system of a second building (H′, H″, H′″), located at a distance from the first building, and is received via a data network (1), in particular, via the Internet. An arrangement is provided for controlling a first heating or cooling system of a first building, wherein the arrangement is adapted to carry out the method mentioned above. A server is further provided that is adapted to receive at least one thermal power indicative parameter.

公开(公告)号：US10801504B2

公开(公告)日：2020-10-13

申请号：US16034923

申请日：2018-07-13

Applicant: GRUNDFOS HOLDING A/S

Inventor： Casper Hillerup Lyhne

IPC: F04D15/00 ,  F04D15/02 ,  F04D13/14 ,  F04D1/04 ,  G05B15/02 ,  G06F17/14 ,  E03B5/00

Abstract: A multi-pump control system includes a control module, a processing module, a communication interface, and a storage module. The control module is configured to run a zero flow configuration cycle by either ramping up the speed of at least one pump in addition to a subset j of i pumps of a multi-pump system until the communication interface receives a signal change indicative of the at least one pump starting to contribute to the total flow, wherein the processing module is configured to determine an approximated pump characteristic or power consumption or ramping down the speed of at least one pump of a subset j of i pumps of a multi-pump system until the communication interface receives a signal change indicative of the at least one pump stopping to contribute to the total flow, wherein the processing module is configured to determine an approximated pump characteristic and/or power consumption.

公开(公告)号：US10527294B2

公开(公告)日：2020-01-07

申请号：US15029309

申请日：2013-10-14

Applicant: Grundfos Holding A/S

Inventor： Casper Hillerup Lyhne

IPC: F24D19/10

Abstract: The present invention relates to a method for controlling a pump for feeding fluid (F) into a heating system (1000). The heating system has a hot fluid tank (HFT) receiving fluid from an associated fluid reservoir line (5) with an incoming fluid mass flow rate (dmcw/dt). A pump (P) receives fluid from the line, and pumps the received fluid with a mass flow rate (dmc/dt). A heat exchanging unit (HX) transfers heat (Q) to the fluid (F) from a medium (R). The transferred heat (Q) is maximized by controlling the pump (P1) in response to this information indicative of the transferred heat (Q), the fluid mass flow rate delivered by the pump thereby having a minimum as a function of the incoming fluid mass flow rate (dmcw/dt) when maximizing the transferred heat. The invention provides significantly improved heat transfer to the fluid and power savings for the pump. The invention also relates to a heating system, e.g. a heat pump system.