公开(公告)号：US20160047372A1

公开(公告)日：2016-02-18

申请号：US14826631

申请日：2015-08-14

Applicant: GRUNDFOS HOLDING A/S

Inventor： Brian Kongsgaard NIELSEN ,  Carsten Skovmose KALLESØE

IPC: F04B49/06 ,  F04B49/20

Abstract: A control method for a pump assembly (10, 12) in a pneumatic or hydraulic system controls a speed (n) of the pump assembly (10, 12) in dependence on at least one variable (Dp, p, T, xp) which is detected in the system. An error signal (e) is produced from the detected variable (Dp, p, T, xp) on the basis of a sectionwise monotonic function. On the basis of the error signal, the speed (n) of the pump assembly (10, 12) is controlled.

Abstract translation: 根据至少一个变量（Dp，p，T，xp），气动或液压系统中的泵组件（10,12）的控制方法控制泵组件（10,12）的速度（n） 在系统中被检测到。 基于截面单调函数，从检测变量（Dp，p，T，xp）产生误差信号（e）。 基于误差信号，控制泵组件（10,12）的速度（n）。

公开(公告)号：US20150136377A1

公开(公告)日：2015-05-21

申请号：US14546305

申请日：2014-11-18

Applicant: GRUNDFOS HOLDING A/S

Inventor： Carsten Skovmose KALLESØE ,  Brian Kongsgaard NIELSEN

IPC: G05D23/13 ,  F24D19/10 ,  F24D5/04 ,  F24F11/00 ,  F24F3/08

Abstract: A control method for a heat transfer system, wherein the heat transfer system comprises a supply conduit (12), at least one load circuit (2) and a heat transfer device (6; 28) between the supply conduit and the at least one load circuit, wherein a supply flow (qS) in the supply conduit (12) is detected on the basis of a desired entry-side load temperature (Tref), of an actual entry-side load temperature (TL) which is detected in the load circuit (2) and of a load flow (qL) in the load circuit (2), as well to as a heat transfer system, in which such a control method is applied.

Abstract translation: 一种用于传热系统的控制方法，其中所述传热系统包括在所述供应管道和所述至少一个负载之间的供应管道（12），至少一个负载回路（2）和传热装置（6; 28） 电路，其中，基于在负载中检测到的实际入口侧负载温度（TL）的所需入口侧负载温度（Tref）检测供应管道（12）中的供应流量（qS） 电路（2）和负载电路（2）中的负载流（qL），以及作为其中应用了这种控制方法的传热系统。

公开(公告)号：US20230018443A1

公开(公告)日：2023-01-19

申请号：US17859127

申请日：2022-07-07

Applicant: GRUNDFOS HOLDING A/S

Inventor： Brian Kongsgaard NIELSEN

IPC: E03B7/07 ,  E03B7/02

Abstract: A system (15) regulates a temperature of fluid in a sector of a fluid distribution network, including a feed line (11) transporting fluid from a thermal energy source (3) to a thermal energy consumer (7) within the sector and a return line (13) transporting fluid back. A bypass line (17) connects the return line to the feed line, mixing fluid from the return line into the feed line. A pump is at the bypass line. A temperature sensor determines a temperature of fluid in the feed line downstream of the bypass line. A pressure sensor determines an uncontrolled pressure difference between the feed line and the return line, or an uncontrolled pressure difference correlated therewith. A control unit controls the speed of the pump with a closed-loop control for achieving a target feed line temperature based on the determined temperature, and a feed-forward control compensating fluctuations of the pressure difference.

公开(公告)号：US20200340689A1

公开(公告)日：2020-10-29

申请号：US16860260

申请日：2020-04-28

Applicant: GRUNDFOS HOLDING A/S

Inventor： Anders OVERGAARD ,  Brian Kongsgaard NIELSEN ,  Carsten Skovmose KALLESØE

IPC: F24F3/048 ,  F24F11/70

Abstract: A control system controls a fluid distribution system that includes consumer branches arranged in parallel. Each consumer branch includes a consumer element (31) consuming fluid and/or thermal energy, a regulating device (9) receiving a control value regulating a flow of fluid and/or thermal energy through the consumer branch, and a sensor (11) providing a measured value of the consumer branch. The control system includes a saturation calculation module (21) providing a saturation value, for each operational consumer branch, indicative of the saturation degree of the associated consumer branch, and a saturation compensation module (23) receiving the saturation values and altering a reference value. The altered reference value is based on an initial reference value and the saturation values from all consumer branches. The consumer branch regulating device, of each operational consumer branch, is controllable based on the altered reference value and the measured value of the associated consumer branch.

公开(公告)号：US20150369494A1

公开(公告)日：2015-12-24

申请号：US14747370

申请日：2015-06-23

Applicant: GRUNDFOS HOLDING A/S

Inventor： Carsten SKOVMOSE KALLESØE ,  Brian Kongsgaard NIELSEN

IPC: F24D19/10

CPC classification number: F24D19/1006 ,  F24D19/1012 ,  F24D19/1015 ,  Y02B30/745

Abstract: A method for limiting a supply flow (qS) in a heat transfer system which includes a supply conduit (10) with a supply flow (qS) and with a supply entry temperature (TS), and at least one load circuit (2) with a load pump (20) which provides a load flow (qL) with a load entry temperature (TL) and a load exit temperature (TR). The load entry temperature (TL) is set by way of changing the supply flow (qS), wherein the supply flow (qS) is limited to a maximal flow (qS, max), taking into account at least one temperature detected in the load circuit (2). A heat transfer system, in which this method is realized, is also provided.

Abstract translation: 一种用于限制传热系统中的供应流量（qS）的方法，该传热系统包括具有供应流（qS）和供应入口温度（TS）的供应管道（10）和至少一个负载回路（2） 负载泵（20），其提供具有负载进入温度（TL）和负载出口温度（TR）的负载流量（qL）。 负载进入温度（TL）通过改变供应流量（qS）来设定，其中供应流量（qS）被限制到最大流量（qS，max），考虑到在负载中检测到的至少一个温度 电路（2）。 还提供了一种实现该方法的传热系统。