摘要:
A filtration device is disclosed. The device includes a filter inlet, a filter outlet, and a filter flow path from the filter inlet to the filter outlet. A filter in the filter flow path filters contaminants from lubricant flowing from a lubricant supply to a lubricant destination. A bypass flow path bypasses the filter in the event the filter becomes clogged. The bypass flow path has a bypass inlet in fluid communication with the filter flow path at a location upstream from the filter and a bypass outlet separate from the filter outlet and not in fluid communication with the filter outlet. The bypass outlet is normally closed to permit flow along the filter flow path and opens if the filter becomes clogged so that lubricant is directed along the bypass flow path and through the bypass outlet for disposal without going to the lubricant destination.
摘要:
A monitoring system for an HVAC system including an evaporator unit device, first and second temperature sensors, and a condenser unit. The evaporator unit device includes a first current sensor that measures current provided to a circulator blower and a differential pressure sensor that measures pressure between a point prior to a filter element and a point after the filter element. The first temperature sensor measures a refrigerant temperature between a condenser and an expansion valve. The second temperature sensor measures a refrigerant temperature between an evaporator and a compressor. The condenser unit device communicates with the evaporator unit device over low-voltage control lines, wherein the condenser unit comprises a second current sensor that measures current provided to the compressor. The evaporator unit device transmits sensor data to a remote monitoring service over a data network. An efficiency of the HVAC system is calculated based on the sensor data.
摘要:
Methods of monitoring operation of a refrigerant-cycle system are disclosed. The methods include: measuring a first pressure of refrigerant input to a compressor of the refrigerant-cycle system using a first pressure sensor; measuring a first temperature of the refrigerant input to the compressor using a first temperature sensor; measuring a second pressure of refrigerant output by the compressor and input to a condenser of the refrigerant-cycle system using a second pressure sensor; measuring a second temperature of refrigerant output by the condenser using a second temperature sensor; measuring a third pressure of refrigerant output by the condenser using a third pressure sensor; and measuring current to the compressor using an electrical sensor. The methods further include identifying conditions of the refrigerant-cycle system based on the first temperature, the first pressure, the second temperature, the second pressure, the third pressure, and the current.
摘要:
A real-time monitoring system that monitors various aspects of the operation of a refrigerant-cycle system is described. The system includes a processor that measures power provided to the refrigerant-cycle system and gathers data from one or more sensors in connection with a filter element.
摘要:
A real-time monitoring system that monitors various aspects of the operation of a refrigerant-cycle system is described. In one embodiment, the system includes a processor that measures power provided to the refrigerant-cycle system and that gathers data from one or more sensors and uses the sensor data to calculate a figure of merit related to the efficiency of the system. In one embodiment, the sensors include one or more of the following sensors: a suction line temperature sensor, a suction line pressure sensor, a suction line flow sensor, a hot gas line temperature sensor, a hot gas line pressure sensor, a hot gas line flow sensor, a liquid line temperature sensor, a liquid line pressure sensor, a liquid line flow sensor. In one embodiment, the sensors include one or more of an evaporator air temperature input sensor, an evaporator air temperature output sensor, an evaporator air flow sensor, an evaporator air humidity sensor, and a differential pressure sensor. In one embodiment, the sensors include one or more of a condenser air temperature input sensor, a condenser air temperature output sensor, and a condenser air flow sensor, an evaporator air humidity sensor. In one embodiment, the sensors include one or more of an ambient air sensor and an ambient humidity sensor.
摘要:
A real-time monitoring system that monitors various aspects of the operation of a refrigerant-cycle system is described. In one embodiment, the system includes a processor that measures power provided to the refrigerant-cycle system and that gathers data from one or more sensors and uses the sensor data to calculate a figure of merit related to the efficiency of the system. In one embodiment, the sensors include one or more of the following sensors: a suction line temperature sensor, a suction line pressure sensor, a suction line flow sensor, a hot gas line temperature sensor, a hot gas line pressure sensor, a hot gas line flow sensor, a liquid line temperature sensor, a liquid line pressure sensor, a liquid line flow sensor. In one embodiment, the sensors include one or more of an evaporator air temperature input sensor, an evaporator air temperature output sensor, an evaporator air flow sensor, an evaporator air humidity sensor, and a differential pressure sensor. In one embodiment, the sensors include one or more of a condenser air temperature input sensor, a condenser air temperature output sensor, and a condenser air flow sensor, an evaporator air humidity sensor. In one embodiment, the sensors include one or more of an ambient air sensor and an ambient humidity sensor.
摘要:
The present invention relates to an apparatus for detecting operational anomalies in a pressurized fluid circuit having a main pump, a fluid filter and a booster pump connected in series. The apparatus has an indicating detector to provide an indication of a system malfunction and a switching device connected to the indicating detector, as well as to various points in the pressurized fluid circuit, to enable the indicating detector to detect a malfunction in either the booster pump or the filter. The switching device has pressurized fluid inlets connected to a point upstream of the booster pump, a point between the booster pump and the filter inlet and to a point between the filter outlet and the inlet of the main, high pressure pump. The switching device monitors the pressure drop between the inlet and outlet of the fluid filter and, should the filter become clogged, when the pressure drop across the filter reaches a predetermined threshold value, the indicating detector will automatically indicate such a malfunction to the fluid circuit user. Similarly, the switching device will also detect a malfunction in the booster pump so as to cause the indicating detector to indicate such a malfunction.
摘要:
A fluid filter clogging display comprising a case of non-magnetic material divided into an upper housing, at atmospheric pressure, and a lower housing by an impermeable membrane, a piston movable in the lower housing and dividing the lower housing into a high chamber and a low chamber, the high chamber communicating with an upstream side of a filter and the lower chamber communicating with a downstream side of the filter, a magnet mounted on the piston and disposed in the high chamber, a magnetizable detector in the upper housing for sensing a position of the magnet, a return spring located in said low chamber biasing the piston towards the impermeable membrane and a helical spring made of a shape memory alloy (SMA) which is stiff above a specific temperature and compliant below such a temperature and mounted such that the SMA spring joins the magnet to the piston depending upon the temperature thereof.
摘要:
The temperature of the oil or the temperature of the cooling medium at the inlet side and at the outlet side of the oil cooler is measured and the two temperature values are compared to each other and, in the event the temperatures exceed or fall below the pre-set temperature difference, a warning signal is actuated.
摘要:
A pressure-sensitive indicator comprises a housing having a first means movable towards and away from a first position. A second means, movable towards and away from the first means, is normally retained towards the first means when the first means is in the first position. The first and second means are spaced apart by separating means. The second means is retained away from the first means until the first means is returned to the first position.