摘要:
An apparatus and process for cooling down a liquid hydrogen or other cryogenic fluid pump can be configured to allow for a quick startup that also helps minimize hydrogen losses. Some embodiments can utilize a blow-by circuit configured and arranged to support the cryogenic cooldown operation for the pump that can minimize hydrogen loss while allowing substantially improved pump startup times. Some embodiments can utilize at least one temperature sensor to monitor temperature and an adjustable control valve that can facilitate the flow of the fluid utilized to perform the cooldown of the pump.
摘要:
System for conveying and dispensing material may include a heated supply of the material, one or more heated hoses, a heated dispenser, and a pump having a heating device internal the pump. A pump for conveying liquid or liquefied material, for example chocolate, may include one or more heating devices disposed within the pump. A filter may also be provided with an optional internal heating device.
摘要:
A portable pump is provided including an electric motor having a drive shaft connected to a gear assembly to drive a reciprocating air compressor arrangement. The reciprocating air compressor arrangement includes a crank that drives a connecting rod and a piston within a cylinder. The connecting rod has a first end and a second end and the first end of the rod is connected to the crank while the second end of the rod connected to the piston (to drive the piston in the cylinder and provide compression). The second end of the connecting rod is connected to the piston via a pin. The piston includes a sealing arrangement. A control unit is provided which is in electrical communication with the electric motor and the air compressor to control the operation of the pump arrangement. A power supply is also provided in electrical communication with the control unit to supply power to the control unit and electric motor. The pump is provided within a housing which accommodates the electric motor, the gear assembly, the reciprocating air compressor, the control unit and the power supply. A outlet connected to the reciprocating air compressor is also provided so as to engage with an object to be pumped.
摘要:
The utility model discloses a smart control water pump applicable to ponds and swimming pools for water drainage includes a chassis, an outer housing, an inner housing, a motor front end cap, a motor housing body, a motor rear end cap and an motor insulating cover, wherein the outer housing, the inner housing and the motor housing body are disposed in turn from the outside to the inside; a flow channel is formed between the outer housing and the inner housing; the chassis, together with the motor front end cap and the bottom of the inner housing, forms an impeller cavity; an impeller is disposed in the impeller cavity; the motor rear end cap, together with the motor housing body and the motor front end cap, forms a motor cavity; a motor component which is in transmission with the impeller is disposed in the motor cavity; and the smart control water pump also includes a smart control component, and includes a controlled in the motor insulating cover, and a temperature sensor and a liquid level sensor which communicate with the controller and are disposed at the flow channel. Compared with the prior art, the utility model has the advantages of preventing overturning and toppling and avoiding frozen burning.
摘要:
Provided is an air conditioning apparatus that is capable of suppressing increases in volume and cost of the apparatus and performing more suitable overheating protection. An electric compressor is an inverter-integrated electric compressor (10) integrally including a compressor (5), an electric motor (6) that drives the compressor (5), and an inverter (7) including a temperature sensor (11) that detects the temperature in the vicinity of a semiconductor switching device, wherein a controller (3) estimates a discharge temperature of the compressor (5) on the basis of a correlation of respective pressure loading characteristics for the detected temperature of the inverter (7), for the rotational speed of the compressor (5), and for the motive force of the compressor (5) in a refrigerating cycle (2).
摘要:
A pump control system receives inputs from a low level fluid level sensor, a high level fluid level sensor, and/or a temperature sensor. Based on inputs from the sensors, and in response to sensed trouble conditions, duplex pumping or pump specific simplex operation is restricted based on past and present pump current draws. Furthermore, using the temperature sensor and a temperature sensor output device, the temperature of the sump environment can be monitored at will from a remote location.
摘要:
A system and method for controlling a system that includes fixed speed and variable speed compressors are described. The method generally allows the system, for example, a heating, ventilating, and air condition (HVAC) system that includes fixed speed and variable speed compressors, to maximize unit modulating capability. The method allows the use of a variable speed compressor that is relatively smaller, which can lead to cost savings, easier installation, manufacturing, etc.
摘要:
A beer making system may use direct steam injection during wort manufacturing. Steam may be added directly to the wort, and may be part of a recirculating mash system. The steam may be the primary mechanism for adding heat to the system, and may eliminate many problems that often occur when using conventional heating systems. A water reservoir may feed a stream generator, which may inject steam into wort during mashing or boiling steps. A controller may monitor temperature and other parameters, and may calculate the dilution of wort based on the water added through the steam injection and allow a brewing system to compensate for said dilution and still produce desired results
摘要:
A system and method is provided for efficiently managing the compression of gas depending on the operating conditions and operating mode of the compression system, wherein the system includes a booster compressor, a booster compressor bypass, a conduit connected to the booster compressor and the booster compressor bypass conduit, a means for selectively directing the flow of the gas based on current operating conditions, to the booster compressor bypass or the booster compressor and a baseline compressor connected to both the booster compressor and the booster compressor bypass conduit.
摘要:
An electric device having a casing with an air-outlet, and a main unit disposed inside the casing, includes a first temperature sensor configured to detect the temperature inside the casing, a second temperature sensor installed in the vicinity of the air-outlet, and an electric fan configured to generate an airflow from the air-outlet toward the inside of the casing at the time of the low-temperature startup such that the temperature detected by the first temperature sensor is lower than a preset first threshold value, and the temperature detected by the second temperature sensor is higher than the temperature detected by the first temperature sensor.