Conditioning plant
First Claim
1. A conditioning plant comprising:
- at least a general inlet,at least a general outlet,a circuit which sets the general inlet in fluid communication with the general outlet,a plurality of users arranged on the circuit,at least one regulating valve operative on the circuit and comprising;
at least a valve body exhibiting at least an inlet, at least an outlet and at least a channel which sets the inlet in fluid communication with the outlet; and
at least a fluid check element operating in the channel, the fluid check element defining a passage opening for fluid between the inlet and the outlet which has a variable size as a function of positions assumed by the check element in relation to the valve body along a predetermined operating path, the passage opening being shaped such that following a movement of the check element over the operating path the following condition are complied with;
the incremental ratio between the percentage variation of the area of the passage opening and the percentage displacement of the check element, over an initial tract which comprises not more than 30% of the operating path, exhibits an absolute value between 0 and 2.5;
the incremental ratio between percentage variation of the area of the passage opening and the percentage displacement of the check organ, over a final tract which comprises not more than 40% of the operating path, exhibits an absolute value between 0 and 2.5;
the incremental ratio between percentage variation of the area of the passage opening and the percentage displacement of the check element exhibits an absolute value which is substantially constant over an intermediate tract of the operating path comprised between the initial tract and the final tract, and wherein the intermediate tract comprises between 20% and 40% of the operating path, andthe percentage variation of the area of the passage opening comprises the ratio between the variation of the passage area following a displacement of the check organ and a reference area, and wherein the percentage displacement comprises the ratio between the displacement of the check element and the operating path,wherein the passage opening has a longitudinal shaping relating to a longitudinal section with respect to the prevalent development axis of the channel, exhibiting a progressively growing section from the inlet to the outlet of the valve body, andwherein the regulating valve also comprises a control device configured for;
receiving in input at least a first signal relating to an intensity of a physical parameter of a fluid circulating in a first section of the plant and a second signal relating to the intensity of the physical parameter of a fluid circulating in a second section of the plant, andgenerating an output signal as a function of the first signal and the second signal, the output signal being usable for controlling the position of the check element.
1 Assignment
0 Petitions
Accused Products
Abstract
A conditioning plant comprises a general inlet, a general outlet, a circuit which sets the general inlet in fluid communication with the general outlet, a plurality of users arranged on the circuit, and a balancing system. The balancing system comprises a sensor for detecting at least a real value depending on a difference of intensity between upstream and downstream of the users, of at least a physical parameter of the fluid; the balancing system further comprises a flow regulating organ, and a control device connected to the sensor, acting on the flow regulating organ and configured for enabling memorization of at least a reference value of a same physical parameter of the fluid, comparing the reference value with the real value, commanding the regulating organ to regulate the fluid internally of the circuit such as to maintain the real value substantially aligned with the reference value.
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Citations
31 Claims
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1. A conditioning plant comprising:
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at least a general inlet, at least a general outlet, a circuit which sets the general inlet in fluid communication with the general outlet, a plurality of users arranged on the circuit, at least one regulating valve operative on the circuit and comprising; at least a valve body exhibiting at least an inlet, at least an outlet and at least a channel which sets the inlet in fluid communication with the outlet; and at least a fluid check element operating in the channel, the fluid check element defining a passage opening for fluid between the inlet and the outlet which has a variable size as a function of positions assumed by the check element in relation to the valve body along a predetermined operating path, the passage opening being shaped such that following a movement of the check element over the operating path the following condition are complied with; the incremental ratio between the percentage variation of the area of the passage opening and the percentage displacement of the check element, over an initial tract which comprises not more than 30% of the operating path, exhibits an absolute value between 0 and 2.5; the incremental ratio between percentage variation of the area of the passage opening and the percentage displacement of the check organ, over a final tract which comprises not more than 40% of the operating path, exhibits an absolute value between 0 and 2.5; the incremental ratio between percentage variation of the area of the passage opening and the percentage displacement of the check element exhibits an absolute value which is substantially constant over an intermediate tract of the operating path comprised between the initial tract and the final tract, and wherein the intermediate tract comprises between 20% and 40% of the operating path, and the percentage variation of the area of the passage opening comprises the ratio between the variation of the passage area following a displacement of the check organ and a reference area, and wherein the percentage displacement comprises the ratio between the displacement of the check element and the operating path, wherein the passage opening has a longitudinal shaping relating to a longitudinal section with respect to the prevalent development axis of the channel, exhibiting a progressively growing section from the inlet to the outlet of the valve body, and wherein the regulating valve also comprises a control device configured for; receiving in input at least a first signal relating to an intensity of a physical parameter of a fluid circulating in a first section of the plant and a second signal relating to the intensity of the physical parameter of a fluid circulating in a second section of the plant, and generating an output signal as a function of the first signal and the second signal, the output signal being usable for controlling the position of the check element. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A conditioning plant comprising:
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at least a general inlet, at least a general outlet, a circuit which sets the general inlet in fluid communication with the general outlet, a plurality of users arranged on the circuit, at least one regulating valve operative on the circuit and comprising; at least a valve body exhibiting at least an inlet, at least an outlet and at least a channel which sets the inlet in fluid communication with the outlet, at least a fluid check element operating in the channel, the fluid check element defining, in cooperation with the valve body, a passage opening for fluid between the inlet and the outlet which has a variable size as a function of positions assumed by the check element in relation to the valve body along a predetermined operating path, the check organ being configured such as to rotate with respect to a rotation axis which extends transversally with respect to a prevalent development axis of the channel, wherein the passage opening is shaped such that following a movement of the check element over one of the initial tract and the final tract of the operating path, the incremental ratio between the percentage variation of the area of the passage opening and the percentage displacement of the check element exhibits an absolute value between 0 and 4, at least a control device configured for; receiving in input at least a first signal relating to an intensity of a physical parameter of the fluid circulating in a first section of the plant and a second signal relating to the intensity of the physical parameter of a fluid circulating in a second section of the plant, and generating an outlet signal as a function of the first signal and the second signal, the outlet signal being usable for controlling the angular position of the check element, wherein the control device is configured such as to move the check element in a plurality of operating positions which are reciprocally angularly offset, and wherein an angular step is defined between an operating position and an angularly subsequent operating position, the control device repeating the receiving and generating stages of receiving and generating in a predetermined number of the operating positions, wherein at least over a tract of the operating path the angular step is not constant, and wherein the tract in which the step is not constant comprises at least 10% of the operating path, wherein the size of the angular step is calculated by the control unit as a function of the intensity of the physical parameter of the fluid circulating in the first section and of the intensity of the physical parameter of the fluid circulating in the second section of the plant, the tract of the operating path in which the step is not constant comprises the initial tract of the operating path, the initial tract being in turn comprised between an initial position of complete closure of the passage opening and an intermediate position in which the passage opening is open to not more than 40%, the tract of the operating path in which the step is not constant comprises a final tract of the operating path, the final tract being in turn comprised between a final position of complete opening of the passage and an intermediate position in which the passage opening is open to not more than 30%. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17)
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18. A conditioning plant comprising:
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at least a general inlet, at least a general outlet, a circuit which sets the general inlet in fluid communication with the general outlet, a plurality of users arranged on the circuit, at least one regulating valve operative on the circuit and comprising; at least a valve body exhibiting at least an inlet, at least an outlet and at least a channel which sets the inlet in fluid communication with the outlet, at least a fluid check element operating in the channel, the fluid check element defining a passage opening for fluid between the inlet and the outlet which has a variable size as a function of positions assumed by the check element in relation to the valve body along a predetermined operating path, the passage opening comprising a longitudinal shaping relating to a longitudinal section with respect to the prevalent development axis of the channel, exhibiting a progressively growing section from the inlet to the outlet of the valve body, and a control device configured for; receiving in input at least a first signal relating to an intensity of a physical parameter of a fluid circulating in a first section of the plant and a second signal relating to the intensity of the physical parameter of a fluid circulating in the second section of the plant, and generating an output signal as a function of the first signal and the second signal, the output signal being usable for controlling the position of the check element. - View Dependent Claims (19, 20, 21, 22, 23, 24, 25)
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26. A conditioning plant comprising:
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at least a general inlet, at least a general outlet, a circuit which sets the general inlet in fluid communication with the general outlet, a plurality of users arranged on the circuit, at least a balancing system of the flow acting on the circuit, the balancing system comprising; at least a sensor for detecting at least a real value depending on a difference of intensity—
between a first section upstream of the users and a second section downstream of the users—
of at least a physical parameter of the fluid,at least a flow regulating organ, at least a control device connected to the sensor, acting on the flow regulating organ and configured for; enabling memorization of at least a reference value of a same physical parameter of the fluid, comparing the reference value with the real value, commanding the regulating organ via an output signal in order to regulate the fluid internally of the circuit such as to obtain at least one of; maintaining the real value substantially aligned with the reference value, or reducing a difference between real value and reference value; wherein the regulating organ and the control device are part of a regulating valve operating downstream of the users, wherein the regulating valve comprises; at least a valve body exhibiting at least an inlet, at least an outlet and at least a channel which sets the inlet in fluid communication with the outlet, at least a check element of fluid operating in the channel and forming the regulating organ together with the valve body, wherein the fluid check element defines, in cooperation with the valve body, a passage opening for fluid between the inlet and the outlet of a variable size, according to positions assumed by the check element in relation to the valve body along a predetermined operating path, the check element being configured such as to rotate with respect to a rotation axis which extends transversally with respect to a prevalent axis of development of the channel, and wherein the step of commanding the regulating organ via an output signal, which the control unit is configured to execute, comprises moving the check element among a plurality of distinct operating positions which are angularly offset to one another, and wherein an angular step is defined between an operating position and an angularly subsequent operating position, the control device, following each angular step, being configured to cyclically repeat the stages of comparison and command, further wherein the angular step, at least over a predetermined tract of the operating path, satisfies at least one of the following conditions; the angular step is less than 1°
,the angular step is not constant over the operating path, the size of the angular step is a function of the intensity of the physical parameter of the fluid circulating in the first section and the intensity of the physical parameter of the fluid circulating in a second section of the plant, and the size of the angular step reduces progressively on reduction of a difference between a reference value and a real value given by a difference of intensity of the physical parameter of the fluid circulating in the first section and the intensity of the physical parameter of the fluid circulating in a second section. - View Dependent Claims (27, 28, 29, 30, 31)
further wherein the passage opening is shaped such that following a movement of the check element over one of an initial tract and a final tract of the operating path, the incremental ratio between the percentage variation of the area of the passage opening and the percentage displacement of the check element exhibits an absolute value comprised between 0 and 4.
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31. The conditioning plant of claim 26, wherein the control device is configured for:
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receiving in input at least a first signal relating to an intensity of the physical parameter of the fluid circulating in the first section of the plant and a second signal relating to the intensity of the physical parameter of a fluid circulating in the second section of the plant, generating the output signal as a function of the first signal and the second signal; wherein the first signal relates to an intensity of the fluid pressure or of the fluid flow rate in the first section and the second signal relates to an intensity of the fluid pressure or of the fluid flow rate in the second section of the plant, and wherein generating the output signal comprises determining a control differential signal comprising one of a difference and a ratio between the intensity of the first signal and the second signal.
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Specification