Abstract: A management system includes a map information storage unit, an association information storage unit, a map information generation unit, a display unit, and an operation unit. The map information generation unit generates display arrangement map information and display process map information for displaying an arrangement map that indicates arrangement positions and a process map that indicates a connection relationship of a plurality of system devices that constitute a process system. Also, the map information generation unit generates the display process map information in a display mode that enables other system devices associated with a designated system device to be identified, based on information stored in the association information storage unit.

Abstract: A sensor device includes: a rod member including an axially extending gas passage into which fluid flows; a sheath pipe thinner than the gas passage, inserted in the gas passage with a distal end thereof being located inside the gas passage, and configured to detect a temperature of the fluid; an insert configured to fix a proximal end of the sheath pipe; and retention members configured to retain the distal end of the sheath pipe.

Abstract: A steam using facility in which a generated condensate amount changes in association with a change in an environmental state value, based on a correlation between the environmental state value and the generated condensate amount. An environmental state value when the generated condensate amount becomes a set alarm amount is set as an alarm state value. An alarm is issued when an actual environmental state value by a measuring instrument changes in an increasing direction of the generated condensate amount to reach the set alarm state value.

Abstract: A management device that transmits data to a plurality of terminal devices by way of communication relay devices on a connected communication network and controls the plurality of terminal devices includes a transmission data storage section and a communication control section. The transmission data storage section stores transmission data. The communication control section controls communication with the terminal devices.

Abstract: A device management system includes a storage unit which stores, in advance and in correlation with device identification information set in each steam controller, location information indicating a location of each steam controller. The storage unit further stores in advance work patterns for the steam controller according to a classification based on a device type and an installation state of the steam controller. The system further includes a data extraction unit configured to extract from the storage unit the location information from the device identification information based on detection information. The data extraction unit is further configured to extract a corresponding work pattern from the device type and the installation state specified from the device identification information. A work information generation unit is included for generating work information including the extracted location information and work pattern for each work-target device.

Abstract: A drain trap includes: a casing having a fluid channel; and a second valve mechanism including a second valve seat having a seat surface in a ring shape and a second valve body configured to be displaced to be separated from and seated on the seat surface of the second valve seat so that and the second valve mechanism opens and closes the channel The second valve seat is held to be movable back and forth along a center axis of the ring shape such that the seat surface of the second valve seat and the seat surface of the second valve body are separated from each other and contact each other, and is held to be rotatable about the center axis of the ring shape.

Abstract: A check valve includes a plate-shaped valve seat member provided with a fluid discharge port, a plate-shaped valve member provided on a downstream side of the valve seat member and configured to open/close the discharge port, a coil spring provided on a downstream side of the valve member and configured to bias the valve member toward the discharge port, a spring receiving member provided for the coil spring on a downstream side thereof, and a plurality of guide rods provided at the periphery of the valve member and formed to extend in an upstream-to-downstream flow direction, each having a downstream end portion attached to the spring receiving member, and configured to guide the valve member in the upstream-to-downstream flow direction.

Abstract: A flow rate adjusting valve includes: a casing including an inlet, an outlet, and a channel connecting the inlet and the outlet to each other; a valve port disposed in the channel; and a valve body that is disposed upstream of the valve port and moves forward and backward relative to the valve port to adjust an opening degree of an upstream opening of the valve port. The valve port includes a narrowing portion whose opening diameter is smaller than that of the upstream opening, and an enlarging portion continuous to a downstream side of the narrowing portion and having an opening diameter of the narrowing portion. When the upstream opening is at a predetermined opening degree, an area of the valve port through which a fluid passes is at minimum at the narrowing portion.

Abstract: A sensor device includes: a cylindrical casing; a vibration detecting unit including a detection probe, a bottomed cylindrical holder having a bottom in which a rear end of the detection probe is inserted and fixed, piezoelectric elements disposed rearward of the detection probe in the holder and configured to contact the rear end of the detection probe, and a push member held in the holder and configured to push the piezoelectric elements against the rear end of the detection probe, the vibration detecting unit being disposed in the casing; and a coil spring that is disposed rearward of the vibration detecting unit, is configured to contact the holder to bias the holder forward, and causes a tip of the detection probe to project from the casing, wherein the tip of the detection probe is pushed against a measurement object to detect vibration of the measurement object.

Abstract: An ejector includes a nozzle, a suction chamber, and a diffuser. A diffuser further includes an attachment configured to change the dimensions of the outlet flow path. The attachment changes the length X of a narrowed flow path and the length Y and the inner diameter D of a parallel flow path such that expressions (1) and (2) are satisfied: X=A×D??(1), and Y=B×D??(2).

Abstract: An ejector includes a nozzle, a suction chamber, and a diffuser. An outlet flow path includes a narrowed flow path having a first tapered surface narrowed toward downstream, a parallel flow path having a constant sectional area, and a parallel flow path having a second tapered surface expanded toward downstream. The diffuser further includes an attachment configured to change the dimensions of the outlet flow path. The attachment changes the dimensions of the outlet flow path such that the ratio of the tapered angle of the first tapered surface to the tapered angle of the second tapered surface is higher as the sectional area, i.e., the inner diameter, of the parallel flow path is smaller.

Abstract: A method for optimizing a fluid utilization facility. The method includes monitoring an operating state of a fluid utilization device and an operating state of a drain trap in a fluid utilization facility based on detection information obtained by detectors installed in various places in the fluid utilization facility. A running state of the fluid utilization facility is optimized based on a monitoring result.

Abstract: In a drain recovery section including a recovery tank to which drain generated in a steam-using device is collected and from which the drain is supplied to a boiler, pressure decrease in the boiler under a high load can be suppressed. A drain recovery section includes: a recovery tank in which drain generated by condensation of steam in a steam-using device is stored and from which water stored in the recovery tank is supplied to a boiler; and a control unit that controls an amount of water supply from the recovery tank to the boiler to prevent the water level of water in the recovery tank from decreasing below a predetermined tank reference water level. When the load of the boiler increases to a predetermined load, the control unit reduces the tank reference water level by a predetermined amount.

Abstract: A backflow prevention apparatus is provided with a check valve and a float-type backflow prevention valve, these being installed in this order as one proceeds from upstream to downstream. The check valve comprises a valve seat; a valve member that closes the valve at the valve seat due to an upwardly directed restoring force; and a restoring force exerting member that exerts an upwardly directed restoring force on the valve member. The float-type backflow prevention valve comprises an annular valve seat; a float that rises in accompaniment to a rise in a water level of wastewater to close the valve at the annular valve seat; a guide member that guides movement of the float in a vertical direction; and a constraining member that constrains a lowermost position to which the float can move.

Abstract: A fluidic device includes a casing in which a fluid passage is disposed and which has an outer surface including a detection target surface (bottom surface) that is to contact a detection part of a sensor so that at least one of a temperature and a vibration of the fluidic device is detected; and a plug detachably disposed on the casing and configured to cover the detection target surface (bottom surface).

Abstract: A management device that transmits data to a plurality of terminal devices by way of communication relay devices on a connected communication network and controls the plurality of terminal devices includes a transmission data storage section and a communication control section. The transmission data storage section stores transmission data. The communication control section controls communication with the terminal devices.

Abstract: A risk evaluation system includes a storage unit, an operation unit, a calculation unit, a risk evaluation unit and a display unit. The calculation unit calculates first and second factors for use in risk evaluation relating to specific constituent devices on the basis of predetermined information about the specific constituent devices. The risk evaluation unit generates risk evaluation information to be used for displaying a device risk evaluation matrix defined by two axes of the first factor and the second factor and including plot images plotted based on the first and second factors of the specific constituent devices. Further, the risk evaluation unit generates the device risk evaluation information in identifiable displaying mode to allow identification of plot images of specific constituent devices constituting a same process.

Abstract: Sensor device is provided with body, formed at the interior of which is gas passage into which steam serving as detection target flows; and pressure sensor, which is installed at body so as to be in communication with gas passage and which detects pressure of steam within gas passage. Body has rod-shaped portion having cylindrical inside circumferential surface. Sensor device is provided with sheath pipe (insert) that is formed in the shape of a rod on which helical groove is formed at outside circumferential surface, and that is such that, when inserted within rod-shaped portion of body, helical groove, together with inside circumferential surface of rod-shaped portion, form helically shaped gas passage (helical passage).

Abstract: A communication relay device is assigned with a specific slot in a communication schedule divided into a plurality of time slots. The communication relay device includes: a communication controller that switches a state between an active state and a sleep state and performs communication in the active state; and a slot determiner that determines arrival of a specific slot and arrival of a relay slot that is a time slot assigned to another lower-layer communication relay device. The communication controller changes to the active state and performs a predetermined communication process if the slot determiner determines arrival of the specific slot, and changes to the active state and performs a relay process if the slot determiner determines arrival of the relay slot.