15497 results about "Circulating pump" patented technology

A washing machine includes a main body defining an outer appearance, a tub supported in the main body, a drum rotatably installed in the tub, a steam generating unit supplying steam into the drum, and a circulation pump returning washing water exhausted from a first side of the tub to a second side of the tub.

The invention discloses a remote ultra-low-density automatic control system. The system comprises a control unit, a water valve, a flow meter, a cement valve, a slurry mixing tank, a liquid level meter, a circulation pump and a plunger pump; the cement valve, the water valve, the circulation pump and the plunger pump are connected with the slurry mixing tank separately, the flow meter feeds the water supply amount monitored in real time back to the control unit, the liquid level meter is arranged in the slurry mixing tank, the control unit controls the number of revolutions and preset displacement of the plunger pump to achieve automatic displacement as required, the water demand amount and the cement demand amount are calculated by presetting the water-cement ratio and liquid level valuein the control unit, and therefore the opening degrees of the water valve and the cement valve are controlled; the control unit comprises a remote control unit and an equipment end control unit whichare connected with each other. The remote ultra-low-density automatic control system has the advantage of remote cementing equipment monitoring, remote liquid level automatic control, remote automaticwater supply, remote automatic cement supply, remote automatic premixing, remote automatic density control and remote automatic displacement.

The invention relates to the field of natural gas chemical industry, in particular to a natural gas desulfurization process suitable for an offshore floating platform. The natural gas desulfurizationprocess comprises a reactor, a re-reactor and a centrifugal machine; acid gas coming from a boundary region is directly introduced into the reactor, a trivalent complex iron catalyst enters the re-reactor, the trivalent complex iron catalyst at the bottom of the re-reactor enters the reactor under the control of a valve and a pipeline, a chemical reaction is then carried out, divalent complex ironobtained by means of the reaction is centrifuged, the divalent complex iron is conveyed to an electrochemical regeneration device by means of a regenerative feed pump so as to complete the regeneration, and the regenerated trivalent complex iron catalyst is returned to the re-reactor by means of a circulation pump. The natural gas desulfurization process is simple in technological process, smallin equipment size and compact in structure, and adapts to the condition limit of limited production space of offshore floating liquefied natural gas (FLNG).

The invention relates to a thermal management system of a power battery, and belongs to a component of a battery management system. The thermal management system of the power battery mainly consists of a battery box, a heat pipe, a liquid flow pipe, a liquid box, a semiconductor heating / refrigerating element, a liquid circulating pump, a battery control unit, a temperature sensor, a radiator and a fan. The radiator and the fan are installed outside the battery box, the battery box, the heat pipe, the liquid flow pipe, the liquid box, the semiconductor heating / refrigerating element, the liquid circulating pump, the battery control unit and the temperature sensor are installed in the battery box and organically combined with a battery module. The heat pipe is inserted into the battery module. The heat pipe is compactly attached to the battery module and the liquid flow plate above the battery module. The liquid flow plate is internally provided with a liquid circulating pipeline connected with the liquid circulating pump which is further connected with the liquid box filled with a circulating liquid. The semiconductor heating / refrigerating element is contacted with the liquid box and attached to the radiator. The battery box is further provided with the temperature sensor connected with battery control unit which controls the liquid circulating pump, the semiconductor heating / refrigerating element and the fan to work. The thermal management system of the power battery provided by the utility model is reasonable in structure and can quickly heat and cool.

A vehicle air-conditioning system includes: an HVAC unit that blows air whose temperature has been adjusted by a refrigerant evaporator and a second refrigerant condenser; a heat pump cycle in which a refrigerant compressor, a refrigerant circuit changeover section, a first refrigerant condenser, a first expansion valve, and the refrigerant evaporator are sequentially connected, in which a second expansion valve and a refrigerant / coolant heat exchanger are connected in parallel with the first expansion valve and the refrigerant evaporator, and in which the second refrigerant condenser is connected in parallel with the first refrigerant condenser; and a coolant cycle in which a coolant circulating pump, a ventilation-exhaust-heat recovery unit, a motor / battery, an electric heater, and the refrigerant / coolant heat exchanger are sequentially connected, and in which the ventilation-exhaust-heat recovery unit, the motor / battery, and the electric heater can be selectively used as a heat source.

An ink supplying mechanism includes a circulating system that connects an ink jet head having a nozzle, a pressure chamber opposed to the nozzle, and an upstream port and a downstream port that communicate with the pressure chamber, an upstream side tank that communicates with the ink jet head via the upstream port and is capable of storing an ink, a downstream side tank that communicates with the ink jet head via the downstream port and is capable of storing the ink, and a circulating pump that feeds the ink from the downstream side tank back to the upstream side tank. The ink supplying mechanism has a relief valve that is capable of opening and closing at least a liquid surface of the downstream side tank with respect to the atmospheric pressure, closes the relief valve to drive the circulating pump, sets the liquid surface of the downstream side tank to a negative pressure, and feeds the ink from the downstream side tank back to the upstream side tank via a feedback channel to circulate the ink.

The invention provides power battery pole ears and a power battery. The power battery pole ears are a hollow conductive cylinder. The power battery comprises a casing, an electric core and an electrolyte which are arranged in the casing, a positive pole ear and a negative pole ear which are electrically connected with the electric core, and an electrolyte circulating pump and an electrolyte constant temperature system which are externally arranged on the casing. The positive pole ear and the negative pole ear are the power battery pole ears, one end parts of the power battery pole ears both extends out of the casing, the end part of negative pole ear, which extends out of the casing, is successively connected via an electrolyte guide pipeline with the electrolyte circulating pump, the electrolyte constant temperature system and the end part of the positive pole ear, which extends out of the casing, and an electrolyte circulation channel is formed. The power battery pole ears enable the electrolyte to flow in and out through the hollow pipeline. The power battery is stable in working temperature and high in safety performance.

The invention relates to a biological water quality monitoring system by fish behaviors and a monitoring method thereof. The monitoring system provided by the invention comprises a data acquisition device, a data analysis device and a transparent water tank, and is characterized in that the water tank is successively divided into a pipelining buffer area, a fish shoal observation area and a filtration adjusting area by netted fish baffle plates; the sidewall of the pipelining buffer area is provided with a water inlet pipe; the outer portion of the fish shoal observation area is equipped witha light source; the sidewall of the filtration adjusting area is provided with a water outlet pipe; the filtration adjusting area is provided with a circulating pump; and the sidewall near the bottomof the water tank is equipped with a draining valve. The monitoring method provided by the invention comprises the following steps of: shooting the behaviors of the tested fish shoal by the use of a camera to obtain an image sequence, sending into a computer for real time image processing and data analysis, comparing obtained average moving speed, dispersion and the like and a preset threshold value, and determining whether the water quality is polluted or not. According to the invention, parametric records of fish behaviors in hydrostatic, pipelining and water-exchanging tests can be simultaneously realized, and the behaviors of individual and colonial organism can be simultaneously measured.

The invention relates to a sludge drying and burning technique and its system devices, applying to the handling of active sludge in urban sewage treatment plants, its process flows through: wet sludge stock house, measuring bin, sludge mixer, sludge dryer, granular splitter, cooler, drying products storage bin, incinerator, smoke gas cleaning devices, which is characterized by: said incinerator is bubbling fluid bed incinerator with coal economizer, air heater fixed in its end part, high-heat smoke gas generated by burning is used to heat heat-conducting oil and cool air individually, and heat-conducting oil after being heated is transferred to sludge dryer through the circulating pump to dry wet-sludge. The invention is characterized by: take heat-conducting oil as heating medium, use the heat generated by burning dry sludge to heat heat-conducting oil and then dry wet-sludge to make full use of resources; the volume-reducing quantity after drying and burning could reach over 90%; the percentage of desulphurization in incinerator could reach 75% as a result of adopting two stage technology of sulfur removal, and the gross percentage of desulphurization meets national environmental legislation requirements. The invention accomplishes the resources, volume reduction, and innocence of sludge.

The invention relates to a special flotation column of coal fly ash, an ore pulp distributor is arranged at the top part of a cylinder body of the special flotation column, a plurality of layers of bubble plates are arranged in the cylinder body, a multi-point rotary flow device and a multi-point fly ash overflow hole are arranged at the lower part of the cylinder body, an ore pulp distributing pipe is arranged at the periphery of the ore pulp distributor, a circulating pipeline is arranged at the periphery of the cylinder body, the upper end of the circulating pipeline is connected and communicates with the ore pulp distributing pipe, the lower end is connected and communicates with the rotary flow device, an interface of the ore pulp distributing pipe and a feed and discharge port are respectively connected with the both ends of a circulating pump, a high carbon ash balance overflow plate and a high carbon ash overflow collection port are further arranged at the upper part of the flotation column, and the fly ash overflow hole is provided with a fly ash automatic regulation box by the connection of the pipeline. The special flotation column is applicable to various requirements, the decarburization effect is good, the continuous operation is stable and reliable, the quality of fine coal is high and the processing ability is great, thus saving energy, increasing efficiency and saving investment.

An electronic apparatus, such as, personal computers of so-called a desktop type and a notebook type, as well as, a server, etc., having a cooling system being high in cooling efficiency, wherein a CPU 200 in need of cooling is installed within a hosing 100, and the liquid cooling system for cooling the CPU, comprises: a heat-receiving (cooling) jacket 50; a radiator 60; and a circulation pump 70, wherein the heat-receiving (cooling) jacket 50, for transmitting heat generated from a heat-generation element, i.e., the CPU, into a liquid coolant flowing with in an inside thereof, has a heat diffusion plate 90 attached on the lower surface thereof. This heat diffusion plate encloses an operating fluid 94, such as water, within a space, which is hermetically sealed and formed within an inside thereof, and also has heater elements 95, being provided in contact with a portion the operating fluid. To those heater elements 95 are supplied a pulse-like electric power. With this, a portion of the operating fluid repeats forming / extinguishing, to give vibration to the operating fluid, thereby diffusing the heat over the entire of the diffusion plate, as a whole, thereafter the heat is transmitted to the heat-receiving (cooling) jacket. Or, alternatively, it may be connected with a heat radiation fin 300.

The invention relates to the technical field of heating and energy conservation and provides a centralized heating public building heat supply energy-saving control method. The method comprises the following steps of: calculating a thermal load required by a public building room in the current time period; calculating water supply quantity required by the public building room in an equivalent area of a building which meets the heating requirement in the current time period; calculating hydraulic power of each pipe section in a pipe network and the total pipe network, performing circulating pump and fan frequency variable control on a water supply main pipe by employing a quantity regulating mode, and performing valve opening control on a water supply branch; and controlling power of a heat source. According to the embodiment, the real-time thermal load required by the building is calculated according to the indoor and outdoor thermal disturbance, the heat waste is reduced, the hydraulic power of the distribution pipe network is reasonably calculated, the pipe section with a proper pipe diameter and a circulating pump with a proper lift are selected according to the calculation, the time and area control and on-demand heating of the thermal load can be realized, and the functions of supervising, calculating and controlling are truly integrated.

A wellbore cleanup tool is run on slickline. It has an onboard power supply and circulation pump. Inlet flow is at the lower end into an inlet pipe that keeps up fluid velocity. The inlet pipe opens to a surrounding annular volume for sand containment and the fluid continues through a screen and into the pump for eventual exhaust back into the water in the wellbore. A modular structure is envisioned to add debris carrying capacity. Various ways to energize the device are possible. Other tools run on slickline are described such as a cutter, a scraper and a shifting tool. A motor driven by an onboard power supply operates the circulation pump as well as a vibration device to agitate the debris and prevent coring into the debris if compacted. A shroud presents an alternate flow path if the housing lower end is embedded in debris.

A brine-type cooling apparatus applied to a vehicle equipped with a vehicle air conditioning case 11, a blower 13, and an air conditioner control ECU 23 as air conditioner controlling means, said brine type cooling apparatus comprising a heat absorbing member 8 for absorbing heat from an electronic equipment 7, a heat radiating member 2 for discharging the absorbed heat, a brine pipeline 6 and a circulation pump 9, and a cooling apparatus control ECU 30 as cooling apparatus controlling means. Even when the air conditioner control ECU 23 stops the blower 13 as air conditioner control, an air flow rate is controlled to set an airflow rate of the blower 13 to a predetermined flow rate based on the brine temperature detected by an inlet water temperature sensor 32.

An apparatus for producing algae circulates algae fluid through flexible reactor tubing that is at least partially translucent to sunlight. The reactor tubing lies flat when not pressurized. Preferably, the reactor tubing is made of clear polyethylene with UV inhibitors, the polyethylene being between 6 and 15 mil thick. The reactor tubing preferably has a substantially circular cross-section with a 6 inch diameter and is preferably 1250 feet long. Gas relief valves allow gases generated during algae production to escape from the reactor tubing. CO2 may be injected into the algae fluid to stimulate photosynthesis. A circulation pump propels the algae fluid through the reactor tubing, keeping the reactor tubing pressurized and stationary without touching the reactor tubing, so that a rigid support structure is not needed. One or more layers of plastic mulch may be disposed above or below the reactor tubing to control temperature and sunlight exposure.

In various illustrative examples, the system may include heat recovery heat exchangers, one or more turbines or expanders, a desuperheater heat exchanger, a condenser heat exchanger, a separator, an accumulator, and a liquid circulating pump, etc. In one example, a bypass desuperheater control valve may be employed. The system comprises a first heat exchanger adapted to receive a heating stream from a heat source after passing through a second heat exchanger and a second portion of a working fluid, wherein, the second portion of working fluid is converted to a hot liquid via heat transfer. An economizer heat exchanger that is adapted to receive a first portion of the working fluid and the hot discharge vapor from at least one turbine may also be provided. The first and second portions of the working fluid are recombined in a first flow mixer after passing through the economizer heat exchanger and first heat exchanger, respectively. A second heat exchanger is provided that receives the working fluid from the first flow mixer and a hot heating stream from a heat source and convert the working fluid to a hot vapor. The hot vapor from the second heat exchanger is supplied to at least one turbine after passing through a separator designed to insure no liquid enters the said at least one turbine or expander. The hot, high pressure vapor is expanded in the turbine to produce mechanical power on a shaft and is discharged as a hot, low pressure vapor.

A dissolved gas flotation apparatus and process for removing oils and other contaminants from produced water generated in the production of crude petroleum and natural gas. The invention is particularly designed for offshore applications, where space is limited and natural gas is readily available. The invention includes a vessel for receiving and maintaining a liquid level therein and a circulating pump for introducing tiny flotation gas bubbles into the vessel. Natural gas is used as a blanket gas for the vessel and as a source of gas fed into the pump, wherein the gas is mixed with the pumped liquid. The liquid / gas mixture is transferred into the vessel, wherein the gas releases from the liquid, thereby forming tiny, finely dispersed gas bubbles. The tiny gas bubbles rise vertically through the vessel and attach themselves to the oil and other contaminants suspended in the liquid and buoyantly transport the oil and other contaminants to the top of the vessel, where the gas is released and either recycled back to the recirculating pump or transferred out of the vessel for further processing, and the oil and other contaminants are collected in a reservoir for recovery. The clarified water is removed from the vessel through a liquid outlet line located near the bottom of the vessel.

When starting a fuel cell, valves are operated such that a heat exchange medium flows from a circulation pump through a heating-time bypass duct to a heater and the fuel cell, and the heat exchange medium is heated by the heater. Consequently, the fuel cell can be heated up efficiently and rapidly. When a heating device is driven during operation of the fuel cell, the valves are operated such that the heat exchange medium flows from the circulation pump to the fuel cell, the heater and the heat exchanger in this order. If the amount of heat required for the heating device cannot obtained from the heat generated by the fuel cell, the heater heats the heat exchange medium so as to remedy a deficiency in heat. As a result, the heating device can be made to function adequately. That is, the fuel cell is heated up rapidly when it is started. While the fuel cell is in operation, its temperature is confined to a suitable operational temperature range, whereby the heat generated by the fuel cell can be utilized effectively.

A device for controlling the temperature of a swimming pool is disclosed. The device measures the temperature of the water as well as other environmental conditions (such as air temperature). The device controls a circulation pump, which circulates water throughout the pool. The pool water exchanges heat with the surfaces of the water (including the side walls, ground and surface air) when a heat differential exists between the water and the surfaces. When the water is circulated throughout the pool it increases the volume of water that exchanges heat with the surfaces, thus cooling or heating the water depending on the temperature of the surfaces. A target temperature is entered into the device and using this target temperature the device automatically controls the pump in order to take advantage of the heat exchange between the water and the water's surfaces to alter the water temperature in the direction of the target temperature. Additionally a heating element may be used to supplement the heating operation of the circulation pump.

An air conditioning control system having a cooling device for cooling a fuel cell by circulating a liquid coolant through the fuel cell using a main circulation pump while also providing an air conditioning control device for controlling air conditioning in a vehicle interior, wherein heat exchange between the cooling device and the air conditioning control device is possible. When the fuel cell is operated intermittently in the air conditioning control system, the main circulation pump is continuously operated.

A sump assembly for a dishwasher and associated method are provided. The sump assembly comprises an integrally-formed sump member defining a circulation pump volute receptacle and a drain pump volute receptacle. The circulation pump volute receptacle and the drain pump volute receptacle are adapted to receive respective pump and motor assemblies. Each of the volute receptacles is configured to receive the respective pump and motor assembly along a respective horizontal axis defined thereby. The drain pump volute receptacle includes a washing fluid input in direct communication with the circulation pump volute receptacle for receiving the washing fluid therefrom.

A cooling / heating pad of the present invention includes a pad portion, a water reservoir system and a heat exchanger, wherein the pad portion has the pad portion is a foldable, thin, double-layered bag and has a plurality of adhered regions formed by a hot-press or ultrasonic hot melting process to form the water channel between the adhered regions; the water reservoir system has a water reservoir and a water circulating pump, the water reservoir having a water inlet and a water outlet, the water inlet of the water reservoir connected to the water outlet of the water channel, and the water circulating pump moving the cooling water in the water reservoir from the water outlet of the water reservoir to the water inlet of the water channel; and the heat exchanger includes an electrical heating semiconductor chip, and a thermal conductor mounted on one side of the electrical heating semiconductor chip; wherein the thermal conductor directly contacts the cooling water in the water reservoir, or is mounted on a water path between the water outlet of the water reservoir to the water inlet of the water channel, so that the cooling water is capable of exchanging heat with the thermal conductor.

The invention provides a simple and effective thermal management system of a water-cooling proton exchange membrane fuel cell and a control method of the thermal management system. The thermal management system mainly comprises an electric pile, a water tank provided with a heating device, a cooling water circulating pump, a radiator, a cooling water pile inlet temperature sensor, a cooling water pile outlet temperature sensor, a cooling water pile inlet pressure sensor and a controller of the thermal management system. The control method following pressure change is provided to overcome the defects of lag, great overshooting, system coupling and the like caused by temperature change tracking in the traditional control strategy. The radiator is mainly used for controlling the cooling water inlet temperature of the pile and mainly controls the rotating speed of a radiator fan according to the cooling water inlet temperature of the pile of the fuel cell; and the cooling water circulating pump is mainly used for controlling the cooling water flow in the whole thermal management system and mainly controls the rotating speed of the circulating pump according to the cooling water inlet pressure of the pile of the fuel cell.

A hemodialysis system including (i) a dialyzer; (ii) a blood circuit including a blood pump in fluid communication with the dialyzer; (iii) a dialysate circuit including a dialysate circulation pump in fluid communication with the dialyzer, the dialysate circuit further including a sorbent cartridge for cleaning used dialysate; (iv) a container holding an initial supply of dialysate; (v) a container pump in fluid communication with the dialysate circuit and the container; (vi) a supply of concentrate; and (vii) an electronic weight balance positioned and arranged to weigh the supply of concentrate.

A dishwasher includes a number of spray arms, a circulation pump with a pump housing, an impeller, a suction port, and a number of discharge ports on the pump housing. The discharge ports are associated with the spray arms. A water diverter is located on a delivery side of the pump and generates a flow leading from the suction port selectably to one or more of the discharge ports. The water diverter includes a blocking element having a number of diaphragm openings positionable to one or more outlet positions by a drive via a rotation of the blocking element in a circumferential direction.

In various illustrative examples, the system may include heat recovery heat exchangers, one or more turbines or expanders, a desuperheater heat exchanger, a condenser heat exchanger, a separator, an accumulator, and a liquid circulating pump, etc. In one example, a bypass desuperheater control valve may be employed. The system comprises a first heat exchanger adapted to receive a heating stream from a heat source after passing through a second heat exchanger and a second portion of a working fluid, wherein, the second portion of working fluid is converted to a hot liquid via heat transfer. An economizer heat exchanger that is adapted to receive a first portion of the working fluid and the hot discharge vapor from at least one turbine may also be provided. The first and second portions of the working fluid are recombined in a first flow mixer after passing through the economizer heat exchanger and first heat exchanger, respectively. A second heat exchanger is provided that receives the working fluid from the first flow mixer and a hot heating stream from a heat source and convert the working fluid to a hot vapor. The hot vapor from the second heat exchanger is supplied to at least one turbine after passing through a separator designed to insure no liquid enters the said at least one turbine or expander. The hot, high pressure vapor is expanded in the turbine to produce mechanical power on a shaft and is discharged as a hot, low pressure vapor.

A water supply system, particularly for an aircraft such as a passenger aircraft, includes a disinfecting unit with an electrolysis cell connected in series with a water storage tank including a water distribution pipe system and a circulating pump. A bypass pipe with a valve permits connecting the electrolysis cell to the distribution system or bypassing the electrolysis cell. The electrolysis cell disinfects the water by anodic oxidation. A salt solution container may be connected to the electrolysis cell to enhance the anodic oxidation. The pump circulates the disinfected water through the tank and / or through the entire system, whereby the water supply is disinfected and the disinfected water in turn disinfects the entire system.