156 results about "Evacuated tube" patented technology

The needle assembly is provided with the housing, an IV cannula for accessing a blood vessel and a non-patient cannula for communication with an evacuated tube. A flashback chamber is provided in the housing at or near the distal end of the housing. A shield is hinged to a portion of the housing proximally of the entrance to the flashback chamber. As a result, good visibility of the flashback chamber is achieved. After use, the shield can be rotated into a closed position for surrounding the IV cannula and avoiding accidental needle sticks.

A fluid collection apparatus is provided that includes a housing configured for receipt of fluid and / or tissue for collecting fluid therefrom. A holder is configured with the housing to receive an evacuated tube. The holder can include a needle hub supporting a needle cannula in fluid communication with a port extending into a fluid well of the housing. A sloped bottom surface of the housing directs fluid to the fluid well. A sidewall extension or support component extends downward beyond the sloped bottom surface to allow the housing to be stood upright on a flat surface. In certain embodiments, the apparatus includes a tubular cavity to provide a recessed location of the needle cannula for preventing accidental needle injuries. An optional cap provides further shielding from needle cannula and safely maintains fluid in housing after use.

A capsule for an evacuated tube transport system, the capsule comprising a capsule body for carrying passengers within an evacuated tube; a first door disposed in a first end of the body; and a first coupling mechanism and a first sealing mechanism arranged respectively to couple the capsule to another capsule at the end of the body while the capsules are moving and to establish a seal around the door and a corresponding door in the other capsule to enable passengers to move from one capsule to another through the doors without exposing the passengers to the pressure of the evacuated tube.

An objective of the invention is to design and develop an effective method to collect and store heat in a solar collector for delayed release. An embodiment of the invention is directed to an evacuated tube collector, where PCM is placed directly inside the void space of the collector tube, next to the heat pipe. The heat pipe is located with phase change material (PCM) in such a way that its thermal connection with the heat pipe can be switched “ON” to start heat transfer from PCM or “OFF” to keep latent heat stored in PCM for delayed usage. In additional, flow of heat exchange fluid through the manifold can enable release of stored heat of PCM to storage tank. Delayed release of accumulated heat in PCM enables added functionality of on-demand operation of SWH.

The invention discloses a solar absorption type air conditioner, comprising an evacuated tube solar collector, a water storage tank, an auxiliary thermal source, an A absorber, a B absorber, an A evaporator, a B evaporator, an A condenser, a B condenser, a cooling medium water tank, a cooling tower, a water pump, a hot water pump, a floor heater, an air conditioning fan, a coiled tube, a cold water pump and an electromagnetic valve bank controlled by a microcomputer. The invention adopts macropore silica gel-water doped with calcium chloride as refrigeration absorption working substance so as to increase absorption quantity and speed, thus considerably improving the heat efficiency. The device also has the functions of refrigerating in summer, heating in winter and supplying hot water during other seasons, thus notably enhancing the utilization rate and economical property of solar energy. The auxiliary thermal source is connected with the evacuated tube solar collector in parallel through a pipeline, and therefore the device can operate round the clock with practicability considerably improved.

A sanding device including a base plate, an evacuating tube, an articulated joint, and a sealing member. The base plate has a sanding surface and an opposite supporting surface, with an orifice extending therethrough for allowing the passage of particles sanded by the sanding surface. The evacuating tube has an inlet operatively connected to the supporting surface of the base plate, the inlet being positioned about the orifice of the base plate for receiving particles sanded by the sanding surface of the base plate, through the orifice thereof. The evacuating tube also has an outlet configured for operatively connecting to a vacuum system for evacuating sanded particles from the sanding surface through the orifice of the base plate via a suction effect provided by the vacuum system. The articulated joint is configured for operatively connecting the inlet of the evacuating tube to the supporting surface of the base plate, and has at least one pivot axis for enabling the evacuating tube to be articulated with respect to the base plate along various operating angles. The sealing member is operatively mounted onto the base plate for sealingly interconnecting the orifice of the base plate to the inlet of the evacuating tube. Also described is a sanding assembly provided with the above-mentioned sanding device.

The invention relates to a vehicle operation piston effect exhaust vacuum pumping arrangement for evacuated tube transportation. The vehicle operation piston effect exhaust vacuum pumping arrangement for the evacuated tube transportation comprises a pipeline and a vehicle which is arranged in the pipeline, wherein a piston is arranged at the front end of the vehicle; the piston is fixedly connected with the front end of the vehicle through a connecting rod; the shape of the piston is matched with the interior contour of the pipeline; openings are formed in the wall of the pipeline at intervals of a certain distance and one-way valves are additionally mounted in the openings; and the one-way valves can be only opened towards outside of the pipeline. As the front end of the vehicle is connected with the piston, gas is exhausted out of the pipeline so that the operation cost is effectively reduced and economic benefits are increased.

The invention is a water generator device from air utilizing solar thermal energy and adsorption principle. The system is based on an adsorption refrigeration unit with Ether as a refrigerant and activated carbon as adsorbed. The required heat is generated from evacuated tube solar system and the heat sink is the atmosphere. The adsorption unit is an air-cooled refrigeration unit that can operate at relatively low hot water temperature (60-70° C.) and relatively high atmospheric temperature (30-40° C.). The water condensed from air is than driven through a simple water purification unit to assure its quality as drinking water. The very small electricity needed to operate the hot water and cold water pumps along with the filtration unit and the controller of the adsorption unit is generated from a small Photo Voltaic (PV) unit for stand alone systems.

The invention discloses a solar-powered water heating and heat-electricity converting device. The device comprises a water storage tank, a heat exchanger, a turbine, a fractional condensation unit and at least one evacuated tube collector connected in series / in parallel, wherein the water outlet of the evacuated tube collector is connected with the water inlet of the water storage tank; the water outlet of the water storage tank is connected with the hot side inlet of the heat exchanger; the hot side outlet of the heat exchanger is connected with the water inlet of the evacuated tube collector through a first circulating water pump; the cold side of the heat exchanger is connected with the turbine and the fractional condensation unit through a Kalina circulating secondary loop respectively; and the turbine is connected with an electric generator through a transmission case. The solar-powered water heating and heat-electricity converting device improves photo-thermal conversion efficiency and lowers system cost through the evacuated tube collector.

A fluid collection apparatus is provided that includes a housing configured for receipt of fluid and having a first surface which defines a needleless first mating portion. A holder has a first end and a second end configured to receive an evacuated tube. The first end defines a second mating portion on an outer surface thereof which is in fluid communication with the evacuated tube. The first mating portion sealingly engages the second mating portion to establish fluid communication therebetween. The first mating portion may have a locking surface that engages the second mating portion. The first end of the holder can include a needle hub supporting a needle cannula in fluid communication with the second mating portion and extending away from the first mating portion. In an alternate embodiment, an umbilical cord fluid collection apparatus includes a housing defining a cavity for receipt of at least a portion of an umbilical cord. The housing has a funnel surface which defines a male luer connector. A holder has a first end and a second end configured to receive an evacuated tube. The first end defines a female luer connector on an outer surface thereof in fluid communication with an inner surface of the first end. The inner surface is in fluid communication with the evacuated tube. The male luer connector sealingly engages the female luer connector to establish fluid communication between the male luer connector and the evacuated tube. A method for collecting umbilical cord fluid is provided.

A fluid collection apparatus is provided that includes a housing configured for receipt of fluid and / or tissue for collecting fluid therefrom. A holder is configured with the housing to receive an evacuated tube. The holder can include a needle hub supporting a needle cannula in fluid communication with a port extending into a fluid well of the housing. A sloped bottom surface of the housing directs fluid to the fluid well. A sidewall extension or support component extends downward beyond the sloped bottom surface to allow the housing to be stood upright on a flat surface. In certain embodiments, the apparatus includes a tubular cavity to provide a recessed location of the needle cannula for preventing accidental needle injuries. An optional cap provides further shielding from needle cannula and safely maintains fluid in housing after use.

A system and method for producing a continuous or pulsed source of high energy electrons at or near atmospheric pressure is disclosed. High energy electrons are used to ionize analyte molecules in ambient air through collisions with reactant ions. The device includes an electron emitter, electron optics, and a thin membrane in an evacuated tube. The electron emitter may include a photocathode surface mounted on an optically transparent window and an external source of UV photons. The transparent window may include a UV transparent window mounted on an evacuated tube and / or the evacuated tube may be a transparent tube on which a photocathode surface film is deposited. The electron optics may include successive electrodes biased at increasing voltages. The membrane may include a material transparent or semi-transparent to energetic electrons. Upon impacting the membrane, continuous or pulsed electron packets are partially transmitted through to a high pressure ionization region.

A solar collector system having several evacuated tube solar collectors arranged together, a conductor arranged on the solar collectors, a power source for sending electricity through the conductor, and an indicator connected to the conductor to indicate when electricity is flowing through the conductor. A snow sensor connected is connected to the conductor adjacent the evacuated tube solar collectors and a controller is connected to the snow sensor. The controller controls the electricity flow through the conductor and allows electricity to flow when the snow sensor senses snow covering the snow sensor, and stops the electricity flow when the snow sensor is no longer covered. The electricity flow heats the conductor, which in turn melts the snow on the collectors.

A solar collector apparatus with Dewar-type evacuated tubes results in the more efficient collection of solar radiation by, for example, maintaining the level of a volatile liquid flowing into the solar collector so that no more than 80% of the volume of an inner cylinder of a collection tube is filled with liquid and a corresponding manifold collects the vapor produced when heat is transferred from the surface of the inner glass cylinder that absorbs solar radiation to the volatile liquid. The aforementioned apparatus may likewise be used to heat a liquid within an absorber tube, the liquid having a volatile and a non-volatile component. As heat is transferred to the liquid, a fraction of the volatile component is converted to vapor, leaving the liquid more concentrated in the non-volatile component.

A system and method for producing a continuous or pulsed source of high energy electrons at or near atmospheric pressure is disclosed. High energy electrons are used to ionize analyte molecules in ambient air through collisions with reactant ions. The device includes an electron emitter, electron optics, and a thin membrane in an evacuated tube. The electron emitter may include a photocathode surface mounted on an optically transparent window and an external source of UV photons. The transparent window may include a UV transparent window mounted on an evacuated tube and / or the evacuated tube may be a transparent tube on which a photocathode surface film is deposited. The electron optics may include successive electrodes biased at increasing voltages. The membrane may include a material transparent or semi-transparent to energetic electrons. Upon impacting the membrane, continuous or pulsed electron packets are partially transmitted through to a high pressure ionization region.

A time-of-flight mass spectrometer which has an iron source, an evacuated tube proximate the ion source and adapted to receive ions from the ion source, and a detector disposed at an end of the evacuated tube opposite an end proximate the ion source. The ion source is constructed to generate an electric field that changes non-linearly as a function of position along a path from the ion source to the detector. The ion source is constructed to generate an electric field that changes as a function of time, the electric field being provided to accelerate ions from the ion source to the detector.

The windowless prototypes of various evacuated tube transportation (ETT) based transportation systems, such as Hyperloop-based transportation systems, has the negative feel of an enclosed space. The lack of any kind of outside reference, the unknown sounds and the tremendous speed of the capsule / pod would surely cause anxiety with several passengers. A representation of the outside world shown within the pod / capsule using augmented windows alleviates this claustrophobic environment. At least for the closest passenger to the window, the illusion of looking out on a landscape is achieved using such augmented windows.

A multi-dose injection system (108) is disclosed that allows for vacuum-assisted removal of air from an interconnected tubing set (110) and syringes (126, 127) and subsequent filling with fluid. The injection system (108) may include a bulk fluid container holder module (116) operable to hold one or more bottles (118, 120) of fluid for administration to a patient. The holder module (116) may include a vacuum source (240) that is selectively fluidly interconnectable to the tubing set (110). Air may be removed from the tubing set (110) and syringes (126, 127) by fluidly interconnecting the vacuum source (240) to the tubing set (110). Then the vacuum source (240) may be fluidly isolated from the tubing set (110) and the bottles (118, 120) fluidly interconnected to the tubing set (110), thereby allowing fluid from the bottles (118, 120) to fill the at least partially evacuated tubing set (110) and syringes (126, 127).

The invention relates to a passenger boarding and alighting system for an evacuated tube high-speed train. The passenger boarding and alighting system for the evacuated tube high-speed train comprisesa platform airtight wall and a boarding and alighting compartment; the platform airtight wall is one part of an evacuated tube in a station platform; the platform airtight wall is linked with one part, outside the station platform, of the evacuated tube; a platform airtight sliding plug door is arranged on the platform airtight wall; a train airtight sliding plug door is arranged on the high-speed train; one position corresponding to the train airtight sliding plug door when the high-speed train stops on the platform is the boarding and alighting compartment of an access; the boarding and alighting compartment comprises a movable frame, a telescopic airtight bag and a fixed frame; when the high-speed train stops on the platform and passengers board and alight from the high-speed train, the movable frame finishes three times of alignment with the high-speed train by using a guiding rod and a guiding cone and is connected with the high-speed train by using a hook; an inflating airtightring and a secondary airtight ring are arranged on the movable frame to realize a high pressure airtight state between the high-speed train and the movable frame so that the boarding and alighting compartment is accurately and reliably connected with the high-speed train in a sealed manner; and when the high-speed train runs out of the platform, the movable frame is separated from the high-speed train.

A separated type solar energy absorption type refrigerating system comprises an energy station and a plurality of tail end devices, wherein the energy station consists of a generator (1), a condenser (2), a dilute solution tank (5), a concentrated solution tank (6), a solar energy heat pipe type evacuated tube collector (9), a concentrated natural cold source (10) and a condensed water tank (29) as well as a system pipeline, each tail end device consists of an absorber (3), a evaporator (4) and a solution dehumidification unit (23) as well as the system pipeline; and the refrigerating system is characterized in that the generator or condenser and absorber or evaporator of an absorption type unit are separated into the energy station and the plurality of tail end devices, and capillary tubes are taken as the heat exchanger material of the condenser (2), the absorber (3) and the evaporator (4). The refrigerating system combines the absorption type refrigeration and the solution dehumidification into a whole, comprehensively utilizes the renewable energy sources such as solar energy, low grade natural cold source and the like, improves the utilization ratio of system energy, realizes energy cascade use and meets the requirements of energy conservation and emission reduction.

The invention belongs to the technical field of solar energy and gas turbine combined power generation, and particularly relates to a method and device for hierarchical type solar energy and gas turbine combined cycle complementation. According to the method and device for the hierarchical type solar energy and gas turbine combined cycle complementation, a DSG solar thermal collector is used for replacing a high pressure evaporator of a waste heat boiler and for heating feed water, and generated high pressure saturated vapor returns to the waste heat boiler and is conveyed to a turbine high pressure cylinder to do work after being overheated. A heat pipe type evacuated tube thermal collector is used for replacing a low pressure evaporator of the waste heat boiler and for heating the feed water, and generated low pressure saturated vapor returns to the waste heat boiler and is conveyed to a turbine low pressure cylinder to do work after being overheated. The method and device for the hierarchical type solar energy and gas turbine combined cycle complementation improve low-grade solar heat work conversion, lower cost, reduce fossil energy consumption and corresponding CO2 emission, and achieve the complementation and combined hierarchical utilization of solar energy and fossil energy.

The invention relates to a water tank for a solar water heater, which comprises a heat insulation tank body, a cylindrical enamel water tank arranged in the tank body, a row of heat pipe evacuated tubes connected with the wall surface of the bottom of the water tank, a water inlet pipe and a water outlet pipe respectively arranged on both ends of the bottom of the water tank, wherein the water outlet of the water inlet pipe is lower than the water inlet of the water outlet pipe; the water tank is characterized in that: a pipe heat exchanger is arranged in the water tank, one end of the heat exchanger is the air inlet pipe and the other end is the air outlet pipe, the inlet of the air inlet pipe is connected with an air blower, the outlet of the air outlet pipe is communicated with atmosphere; a temperature control system for monitoring temperature is also arranged in the water tank and is connected with the air blower; the heat pipe evacuated tubes are obliquely connected with the bottom of the water tank. When the temperature of the interior of the water tank is higher than the alarming threshold, the air blower is started to utilize air to dissipate heat of the water tank through the heat exchanger so as to reduce the temperature of the water in the water tank and improve the service life of the enamel water tank. The water tank for the solar water heater is widely applicable to solar water heater with pressure-bearing heat pipe evacuated tubes.

A blood collection assembly includes a needle cannula, a hub mounted on the needle cannula, and a spring biased pivoting shield pivotably mounted to the hub and moveable about a pivot axis between a retracted position and a shielded position encompassing a distal end of the needle cannula. A needle holder is mated at a first end with the hub, and is adapted for receiving a blood collection container such as an evacuated tube through the opposing end. A retaining member is attached to the pivoting shield and is releasably engageable with the hub to maintain the pivoting shield in the retracted position against the spring bias. Insertion of a blood collection tube into the needle holder causes the retaining member to release from engagement with the hub, thereby causing the pivoting shield to move toward the shielded position due to the spring bias.

The invention discloses a hot water pure water coproduction device by solar energy, comprising an evacuated tube collector, a hot water tank, a cooling water tank, a condenser, a defrosting tray, a water pump, a water level sensor, a motor operated valve and a pipeline. The process for the device to prepare pure water comprises the following steps: the water tank of a solar energy water heater isunder the high-temperature and high-moisture environment; damp air enters the condenser on the upper part by natural convection to generate pure water; after cooling water adsorbs latent heat of condensation, a temperature rises; and then, the cooling water serves as water heater make-up water to utilize the regenerative heat of steam latent heat of condensation. The pure water coproduction device has the advantages of simple structure and small assistant energy consumption, and is especially suitable for dispersed water supply for areas lacking in freshwater, such as islands, brackish water areas and the like, the purpose of hot water pure water coproduction is realized, and the problem of home drinking water is solved.

Methods and systems for making X-rays using Electron-Beam Ion Trap (EBIT) technology. A method includes extracting ions of various atomic species from an EBIT, transporting the ions through an evacuated tube, and producing x-rays by neutralizing the ions when the ions strike a conducting plate. Another method includes producing x-rays through EBIT technology and using the x-rays in a medical application. An apparatus includes an EBIT configured to emit fully ions of various atomic species, an evacuated tube configured to transport the ions, and a conducting plate configured to produce X-rays by neutralizing the ions when the ions strike the conducting plate.

The present invention relates to a reference-beam interferometer for determining the position of a traversable stage, wherein an evacuated tube is inserted into the longer of the two interferometer legs. The tube is closed off by windows, which have a negative coefficient of thermal expansion and which can have a coating for reflecting heat radiation. Moreover, thermal compensation plates are inserted into the shorter of the two beam paths.