公开(公告)号：WO2020109214A1

公开(公告)日：2020-06-04

申请号：PCT/EP2019/082381

申请日：2019-11-25

Applicant: DANFOSS A/S

Inventor： VESTERGAARD, Niels P. ,  VAN BEEK, Johan

IPC: F25B41/06

Abstract: The invention relates to a sensor arrangement for providing a sensor signal S indicative of a vapor quality X of a medium flowing within a conduit (38a). A sensor comprising a heating element and a temperature sensing element is arranged in thermal contact with a wall of a horizontally arranged portion (38a) of the conduit (34). Processing means are disposed to deliver a sensor signal S based on an output of the temperature sensing element (52).The sensor (40) comprises a sensor body (46) made of a metal material. The heating element (48) and the temperature sensing element (52) are arranged in thermal contact with the sensor body (46). The invention further relates to a cooling system (10) including at least one evaporator (32) for evaporating an ammonia refrigerant, at least one compressor (12) arranged to compress the evaporated refrigerant, and at least one condenser (18) for condensing the compressed refrigerant, and at least one evaporator pump (30) for pumping the condensed refrigerant to the evaporator (32). A sensor arrangement (50) is arranged at a conduit (34) conducting the refrigerant from at least a portion of the evaporator (32).

公开(公告)号：EP3595794A1

公开(公告)日：2020-01-22

申请号：EP18709034.5

申请日：2018-03-13

Applicant: Danfoss A/S

Inventor： VERMA, Giriraj ,  GURUMOORTHY, Rajendren ,  KULKARNI, Shrikant ,  VESTERGAARD, Niels P.

IPC: B01D19/00 ,  F16K24/04 ,  F25B47/02 ,  F25B41/04 ,  F16K27/00

公开(公告)号：EP3375504A1

公开(公告)日：2018-09-19

申请号：EP17166175.4

申请日：2017-04-12

Applicant: Danfoss A/S

Inventor： VESTERGAARD, Niels P. ,  VERMA, Giriraj ,  GURUMOORTHY, Rajendren ,  KULKARNI, Shrikant

IPC: B01D19/00 ,  F16K24/04 ,  F25B47/02 ,  F25B41/04

CPC classification number: F25B41/04 ,  B01D5/006 ,  B01D19/0063 ,  F16K5/0442 ,  F16K31/30 ,  F16T1/24 ,  F16T1/45 ,  F25B47/02 ,  F25B49/02 ,  F25B2400/23 ,  F25B2500/01 ,  F25D21/06

Abstract: The invention relates to a drain valve (10) comprising a housing (11), a fluid inlet (12), a gas outlet (13) and at least one liquid outlet orifice (19) arranged in a liquid outlet member (20) of the housing (11). The drain valve (10) furthermore comprises a float (16) connected to a lever (17) on a first end (18). The float (16) is arranged in a float chamber (15) of the housing (11). The float chamber (15) is connected to the fluid inlet (12), the gas outlet (13) and the at least one liquid outlet orifice (19). The liquid outlet orifice (19) may be opened or closed by a closing member (21) that is connected to a second end (22) of the lever (17) and is rotatably connected to the liquid outlet member (20). If a liquid is arranged in the float chamber (15) a rise in the liquid level will result in a lift of the float (16) whereby the closing member (21) is rotated to a more open position of the at least one liquid outlet orifice (19) and vice versa.
Task of the invention is to provide a drain valve (10) that may be operated at higher pressure differences in a refrigeration system.
To this end, the liquid outlet member (20) comprises a cylinder-like section and the closing member (21) is arranged concentrically around the cylinder-like section.

公开(公告)号：WO2020007866A1

公开(公告)日：2020-01-09

申请号：PCT/EP2019/067750

申请日：2019-07-02

Applicant: DANFOSS A/S

Inventor： LUND, Thomas ,  VAN BEEK, Johan ,  VESTERGAARD, Niels P.

IPC: F25B43/04

Abstract: An apparatus (1) for removing non-condensable gases from a refrigerant is described, said apparatus (1) comprising a pipe arrangement (2) having a pipe (3), cooling means (4) for the pipe (3), and venting means, wherein the pipe (3) comprises a connection geometry (5) for a connection to a refrigerant system. Such an apparatus should be operated with good efficiency. To this end the pipe comprises at least a first section (6) and a second section (7) which are directed in different directions.

公开(公告)号：WO2018167028A1

公开(公告)日：2018-09-20

申请号：PCT/EP2018/056183

申请日：2018-03-13

Applicant: DANFOSS A/S

Inventor： VERMA, Giriraj ,  GURUMOORTHY, Rajendren ,  KULKARNI, Shrikant ,  VESTERGAARD, Niels P.

IPC: B01D19/00 ,  F16K24/04 ,  F25B47/02 ,  F25B41/04 ,  F16K27/00

Abstract: A valve arrangement according to the present disclosure includes a valve module and a drain valve. The valve module includes first and second functional spaces, and an attachment interface defining a passage into one of the first or second functional spaces. The drain valve includes a fluid inlet and a fluid outlet formed through a common connector part that is connectable to the attachment interface to connect the fluid inlet of the drain valve to the second functional space and the at least one fluid outlet to the first functional space.

公开(公告)号：EP3660494A1

公开(公告)日：2020-06-03

申请号：EP18209029.0

申请日：2018-11-29

Applicant: Danfoss A/S

Inventor： VESTERGAARD, Niels P.

IPC: G01N22/00 ,  F25B49/00 ,  G01R27/26

Abstract: The invention relates to a method and device for providing a sensor signal (S) indicative of a vapor quality (X) of a medium flowing within a conduit (60). An electromagnetic wave emitter and receiver 50 is coupled to an electromagnetic wave guide 48 arranged within the conduit 60. A wave reflector 52 is arranged to reflect the electromagnetic wave from the emitter to be received by the receiver. Timing means measure a travel time T of an electro-magnetic wave along the wave guide 48. Processing means determine a sensor signal S based on the measured travel time T and a known distance L of the reflector 52 from the emitter and receiver 50 along the wave guide 48.
The invention further relates to a cooling system 10, 110 and an operating method therefor. The cooling system 10, 110 includes at least one evaporator 32 for evaporating an ammonia refrigerant, at least one compressor 12 arranged to compress the evaporated refrigerant, and at least one condenser 18 for condensing the compressed refrigerant. A sensor signal S indicative of a vapor quality X of the refrigerant in a conduit 38a between at least a portion of the evaporator 32 and the compressor 12 is obtained from the described sensor and method.

公开(公告)号：EP3591316A1

公开(公告)日：2020-01-08

申请号：EP18182229.7

申请日：2018-07-06

Applicant: Danfoss A/S

Inventor： LUND, Thomas ,  VAN BEEK, Johan ,  VESTERGAARD, Niels P.

IPC: F25B43/04

Abstract: An apparatus (1) for removing non-condensable gases from a refrigerant is described, said apparatus (1) comprising a pipe arrangement (2) having a pipe (3), cooling means (4) for the pipe (3), and venting means, wherein the pipe (3) comprises a connection geometry (5) for a connection to a refrigerant system.
Such an apparatus should be operated with good efficiency.
To this end the pipe comprises at least a first section (6) and a second section (7) which are directed in different directions.

公开(公告)号：WO2020109213A1

公开(公告)日：2020-06-04

申请号：PCT/EP2019/082380

申请日：2019-11-25

Applicant: DANFOSS A/S

Inventor： VESTERGAARD, Niels P. ,  VAN BEEK, Johan

IPC: F25B49/00 ,  G01K13/02

Abstract: The invention relates to a cooling system and operating method therefor with a direct expansion cooling circuit for an ammonia refrigerant. A compressor (12) is provided to compress ammonia vapor (11). A condenser is provided to condense the ammonia vapor to obtain liquid ammonia (20). An evaporator (32) is provided to evaporate the liquid ammonia. A superheat vapor quality sensor (40) is arranged at a conduit 34 between at least a portion of the evaporator (32) and the compressor (12). The superheat vapor quality sensor (40) comprises a heating element (48) and a temperature sensing element (52). The superheat vapor quality sensor (40) is disposed to deliver a sensor signal S indicative of a superheat vapor quality X of refrigerant flowing through the conduit (34) from an output of the temperature sensing element (52). The superheat vapor quality sensor (40) is arranged on a wall of a horizontally arranged portion of the conduit (34) in a position forming an angle of more than 120° to a vertical upward direction.

公开(公告)号：WO2018167027A1

公开(公告)日：2018-09-20

申请号：PCT/EP2018/056182

申请日：2018-03-13

Applicant: DANFOSS A/S

Inventor： KULKARNI, Shrikant ,  GURUMOORTHY, Rajendren ,  VERMA, Giriraj ,  VESTERGAARD, Niels P.

IPC: B01D19/00 ,  F16K24/04 ,  F25B47/02 ,  F25B41/04 ,  F16T1/24

Abstract: A drain valve (10) is described comprising a housing (11), a fluid inlet (12), a gas outlet (13) and at least one liquid outlet orifice (19) arranged in a liquid outlet member (20) of the housing (11). The drain valve (10) furthermore comprises a float (16) connected to a lever (17) on a first end (18). The float (16) is arranged in a float chamber (15) of the housing (11). The float chamber (15) is connected to the fluid inlet (12), the gas outlet (13) and the at least one liquid outlet orifice (19). The liquid outlet orifice (19) may be opened or closed by a closing member (21) that is connected to a second end (22) of the lever (17) and is rotatably connected to the liquid outlet member (20). If a liquid is arranged in the float chamber (15) a rise in the liquid level will result in a lift of the float (16) whereby the closing member (21) is rotated to a more open position of the at least one liquid outlet orifice (19) and vice versa. Such a drain valve should be operated at higher fluid pressures without increasing the size of the valve. To this end the liquid outlet member (20) comprises a cylinder-like section and the closing member (21) is arranged concentrically around the cylinder-like section, wherein the closing member (21) comprises a closing element (24), wherein in the open valve position of the closing member (21) the closing element (24) converges towards the closest liquid outlet orifice (19) that the closing element (24) is matched to such that the surface of the closing element (24) perpendicular to the liquid flow direction through the liquid outlet orifice (19) is minimized, and the end of the liquid outlet orifice (19) that is first exposed when the liquid outlet orifice (19) is opened has the smallest width perpendicular to the opening direction of the closing element (24).

公开(公告)号：WO2018083015A1

公开(公告)日：2018-05-11

申请号：PCT/EP2017/077549

申请日：2017-10-27

Applicant: DANFOSS A/S

Inventor： VESTERGAARD, Niels P. ,  MATZEN, Detlef ,  KANAJAM, Rajkumar ,  VENKATESH, Raghavendra ,  FABRICIUS, Torben Schack

IPC: F16K31/122 ,  F25B41/04 ,  F25B47/02

Abstract: The present invention relates to a top cover (5) for soft throttling valve body (2), the top cover (5) comprising one or more fluid conduits for transferring a pilot fluid flow for setting a degree of opening of a main valve situated in a soft throttling valve body to the soft throttling valve body. Furthermore, the invention relates to a soft throttling valve (1) and a method for assembling the soft throttling valve (1). The object of the invention is to allow a good control of the pilot fluid flow while protecting the soft throttling valve body from damage due to valve failure. The object is solved by having a follower arrangement arranged to throttle the pilot fluid flow depending on the degree of opening of the main valve, further having a manual opening arrangement for manually opening the main valve and/or by further preventing a step-wise opening of the main valve in less than two opening steps. A method for assembling a soft throttling valve is also disclosed.

Abstract translation: 本发明涉及一种用于软节流阀体（2）的顶盖（5），顶盖（5）包括一个或多个流体导管，用于传递引导流体流动以设定一定程度的 将位于软节流阀体内的主阀打开到软节流阀体。 此外，本发明涉及软节流阀（1）和用于组装软节流阀（1）的方法。 本发明的目的是允许很好地控制先导流体流动，同时保护软节流阀体免于由于阀故障而损坏。 该目的通过具有从动装置来解决，该从动装置布置成根据主阀的打开程度来节流先导流体流动，还具有用于手动打开主阀的手动打开装置和/或通过进一步防止阶梯式开口 主阀门在两个以内的开启阶段。 还公开了一种组装软节流阀的方法。