972 results about "Sight glass" patented technology

The invention relates to high-efficiency energy-saving disk type filtering equipment which is a whole set of equipment comprising an upper cover, a shell, a speed reducer, an explosion-proof motor, a pair of sight glasses, a mandrel, a capping bolt, a tray, a pressure disk, a scraping plate, a sealing device, a liquid outlet valve, a sealing device, a supporting column sleeve, a filtering piece, an exhaust valve, a pressure disk locking nut, a liquid inlet valve, a supporting column, a shaft sleeve, a pressure gage, a liquid rotation directional column, a residue discharge valve, a bearing device, an inlet liquid separating buffer and the like. The high-efficiency energy-saving disk type filtering equipment has convenient operation, practicality, product quality improvement, environmental protection, high efficiency and energy saving.

The invention relates to an air source heat pump water heater unit, and particularly to an air source heat pump water heater unit with a phase change heat accumulator. An air source heat pump water heater unit with phase change heat accumulation is provided, which comprises a scroll compressor, an oil separator, a plurality of gas-liquid separators, a four-way reversing valve, a plurality of electromagnetic valves, a plurality of check valves, a double-pipe condenser, a water tank, a phase change heat accumulator, an evaporator, a dry filter, a liquid sight glass, and a plurality of thermal expansion valves, wherein the scroll compressor is provided with an air suction port, an air supplement port and an air exhaust port, the air suction port is connected with the evaporator via a pipeline, the air supplement port is connected with the phase change heat accumulator via a pipeline, and the air exhaust port is connected with the double-pipe condenser via a pipeline. Even if in a low-temperature environment (of lower than minus 25 DEG C), because the phase change heat accumulator is used as an auxiliary evaporator for the system, for providing heat to the system and supplementing air to the compressor, thus increasing the air input of the compressor, optimizing the running working condition of the compressor, and ensuring the stable and safe low-temperature running of the compressor.

The invention discloses a mesomechanics testing system of gas-containing coal rocks, which comprises a transparent sight glass that is fixed at an opening position of a testing cavity, a three-dimensional moving microscopic observing frame that is arranged outside the transparent sight glass, and a stereoscopic microscope and a CCD camera that are arranged on the three-dimensional moving microscopic observing frame; an inner end of a measuring conducting wire is connected with an acoustic emission sensor, and an outer end of the measuring conducting wire is connected with an acoustic emission magnifier and an acoustic emission card; the testing cavity is communicated with a gas pipe through a multi-purpose air vent, and the gas pipe is divided into two paths with one path connected with a high-pressure gas bottle and the other path connected with a vacuum pump; a cushion block, a limit pressure head and a loading head are arranged inside the testing cavity, a vertical surface of an L-shaped nick of the cushion block is over against the limit pressure head, and a transverse surface of the L-shaped nick of the cushion block is over against the loading head. The mesomechanics testing system of the gas-containing coal rocks provides more complete and reliable test methods for revealing the micro-structural damage law of the coal rocks under the gas action, further and deeper finding out the physical and mechanical properties of the gas-containing coal rocks, scientifically revealing the occurrence mechanism of the dynamic phenomenon of the coal rocks, and developing corresponding disaster prevention techniques.

A system and method are provided for selectively dosing and dispensing a predetermined liquid material in and from a pre-dispensing measuring sight glass container vessel, wherein a housing is disposed to receive a pressurized fluid stream, to provide an intermediate measurement and storage vessel for the liquid material and to provide a selectively operable valve assembly that is disposed in a flow path defined in the housing. The housing includes an inlet, an outlet, and an intermediate portion extending therebetween, which is formed with an admission port for admitting the predetermined liquid material. The valve assembly is disposed between the housing's inlet and outlet, and may be selectively operated to fill the sight glass container from the source container; or, to dispense the liquid material from the sight glass container; or, to clean the sight glass container; or, to just provide a flow of the pressurized fluid without any liquid material. At no selection or operating condition can liquid material from the source container be dispensed without first being measured into the sight glass container.

An ostomy pouch is formed to conceal, obscure, hide, cloak, or otherwise prevent the viewing of contents of the ostomy pouch except for a “sight glass”, “bulls-eye”, area or window formed in the pouch and positioned therein for viewing at least a portion of a stoma receptor of the ostomy pouch. The ostomy pouch is formed by a plastic bag incorporating a stoma receptor or opening in one side of the bag and a transparent, translucent or clear window or area in another side of the bag. The transparent window is preferably, but not necessarily, positioned opposite and adjacent the stoma receptor. The ostomy pouch may be entirely sealed except for a stoma receptor orifice or may be open at one end for emptying its contents and incorporate or use a closure at the open end.

A riser tensioner has inner and outer cylindrical barrels that telescopingly engage each other. A small external tank is mounted outside of the barrels for communicating a small quantity of hydraulic fluid the seals between the inner and outer barrels. The external tank allows the internal volume of the cylinder rod assembly to be used for gas storage and reduces the need for accumulators. The fluid level in the external tank is checked via a sight glass, and the tank is isolated from the cylinder assembly by a combination of check and three-way valves, which allows easier access to the working fluid, and allows the addition or removal of high pressure fluid to the system without a high pressure fluid cart.

A faucet mounted filter device includes a horizontally disposed cylindrical part for housing a replaceable filter cartridge and a horizontally disposed arm part extending radially from the cylindrical part which has a connector on its upper side for releasable connection to a downwardly discharging water faucet. A window is provided in the cylindrical part through which the water filtration capacity gallonage is visible. A built in microprocessor with a counter delivers data to a read-out at the front end of the cylindrical part which displays the gallonage of water filtered by the filter cartridge. A sensor connected to the microprocessor senses flow of filter water and installation and removal of the cartridge causes the counter to start counting and to return to zero, respectively.

A system of liquid level detection has a vessel, a sight glass in fluid communication with the vessel, a float positioned in the sight glass, a proximity switch affixed exterior of the sight glass for transmitting a signal relative to a sensing of the float in proximity to the proximity switch, a timer cooperative with the proximity switch for measuring a period of time relative to the signal from the proximity switch, and an indicator cooperative with the timer for producing a humanly perceivable indication when the period of time is at a predetermined limit. The proximity switch can be positioned so as to detect a low level of liquid in the vessel or a high level of liquid in the vessel.

The invention relates to a convenient medical examination device for emergency treatment, comprising a display screen, a touch screen or keys, a microprocessor control unit, an extended functional interface and a basic unit of a clamping and supporting mechanism, wherein the basic unit communicates and transmits data with an additional functional unit through the extended functional interface; the additional functional unit is provided with an electrocardiosignal acquisition unit or a B ultrasonic image acquisition unit and an optical sight glass unit combination; the electrocardiosignal acquisition unit comprises an electrocardiogram processing circuit, a lead cable and an electrode; the optical sight glass unit is a sight glass or a camera assembly for acquiring optical images; and the electrocardiosignal acquisition unit or an ultrasonic image acquisition unit shares man-machine interaction interfaces such as a control interface/a display interface, and the like of the basic unit with the optical sight glass unit. The device is suitable for occasions which require the emergency treatment and are inconvenient for carrying numerous complicated instruments, such as emergency treatment, emergency response, sickroom patrol, military first aids, grassroots outpatient service and out-calls, and the like.

A substantially horizontal compressor including a housing having a main body portion with an open end. An end cap is secured to the main body portion with the end cap being provided with a plurality of apertures. The hermetic terminal body of the compressor is sealably fitted into one of the plurality of apertures located in the end cap. One of the apertures is sealably fitted with a heater well in which a substantially cylindrical heater element is removably received. A third aperture may be provided in the end cap in which a sight glass is sealably secured for checking the oil level in the oil sump. An indentation is formed in the end cap to increase the rigidity of the end cap. The proximity of the terminal assembly and heater well allows the wiring therefor to be part of the same wiring harness.

An infrared sight glass for aftermarket fitment around an opening of an enclosure which enables thermal inspection of electrical equipment within the enclosure. The mounting of the sight glass is performed externally which avoids having to access the interior of the enclosure. The infrared sight glass comprises an infrared transmitting medium to facilitate use of an external infrared thermal imaging camera for monitoring the electrical equipment. A removable protective cover is locked into a closed position by security key screws and is easily removed by a slight twist when the key screws are loosened.

The present invention belongs to the field of ionic liquid preparing reactor, and is especially one multifunctional ionic liquid preparing reactor. The reactor is one kettle type or one horizontal reactor, which has a sandwiched reactor body with medium inlet and outlet, gaseous material inlet pipe, liquid material inlet pipe, vacuum pipe, vacuum suction filtering pipe, slurry stirring motor, temperature sensor, pressure sensor, sight glass, condensate return pipe, solid material outlet, bottom sampling port, etc. The present invention makes it possible to complete multiphase reaction or homogeneous reaction and subsequent product separation and purification, and has high reaction conversion rate, high equipment utilizing rate, less material conveying links and less impurity introduction.

An infrared sight glass for aftermarket fitment around an opening of an enclosure which enables thermal inspection of electrical equipment within the enclosure. The mounting of the sight glass is performed externally which avoids having to access the interior of the enclosure. The infrared sight glass comprises an infrared transmitting medium to facilitate use of an external infrared thermal imaging camera for monitoring the electrical equipment. A removable protective cover is locked into a closed position by security key screws and is easily removed by a slight twist when the key screws are loosened.

The invention is a laser-inducing-fluorescence detector. It includes: a piece of inching equipment to plant and ajdust the position of sample holder; an aided light source to adjust the light path; an observation mirror for adjusting the light path; an exciting light source as its working light source made up of the laser, the reference photoelectric diode and light-reducing board and the dichroiscope; a group of optical lenses in imagine and focus the working light source, made up of the focus lens, the imagining lens, the light-filtering piece and the light diaphragm; and a photoelectric signal converter to receive and output the detecting signal. The invention is based on the common-focus mode to get the high-efficiency imagining system and it can be used in the separating-analysis technique such as Micro-HPLC, CE, CEC and so on.

Embodiments of the invention are directed to methods of use and a (trainable sight glass assembly for use with a sump pump having a pump housing and being adapted to view the condition of oil disposed, within the pump housing. In some embodiments, the drainable sight glass assembly can comprise a sight glass housing having an upper disk layer with a first diameter and a first threaded receptacle formed therein disposed on a top side of the sight glass housing, a lower disk portion with a second diameter and a second threaded receptacle formed therein and disposed on a bottom side of the sight glass housing, and a substantially transparent wall portion connecting upper disk layer to the lower disk portion so that the sight glass has a hollow, substantially frustoconically shaped interior when oil is not in the sight glass housing.

The invention discloses a sight glass for shielding radio frequency electromagnetic wave, which consists of a first white glass layer, a first transparent and conductive ITO metallic oxide film layer, a first metal film layer with silver and titanium alloy, a PU doubling layer, a second metal film layer with silver and titanium alloy, a second transparent and conductive ITO metallic oxide film layer and a second white glass layer in sequence. By combining with the glass doubling technology, the sight glass of the invention is prepared by adopting electron beam evaporation to deposit an ITO/Ag-Ti alloy bilayer film in situ. The sight glass for shielding radio frequency electromagnetic wave of the invention has high intensity, low cost and the shielding efficiency of more than 30dB on the radio frequency electromagnetic wave of 30MHz-5GHz. Meanwhile, the sight glass of the invention has good permeability against visible light while the permeability rate is more than 70 percent, solving the technical problem that the transmittance of light and the electromagnetic shielding of the existing ITO coated glass and wire mesh interlayer shielding glass products can not be realized at the same time.

The invention discloses a polysilicon reducing furnace with multiple gas outlets on the chassis. The polysilicon reducing furnace comprises a furnace body, a jacket, a chassis, a support, a plurality of pairs of electrodes, a silicon core, a mixed gas inlet pipe and inlet nozzle, a plurality of gas outlets and gas outlet pipes, a cooling system, an observation sight glass and the like. The polysilicon reducing furnace is characterized in that a plurality of gas outlets are arranged on the chassis of the reducing furnace, the gas outlets are uniformly distributed on the chassis in circles. As a plurality of gas outlets are arranged on the chassis in the furnace, the inner space of the furnace can be full of the gas moving back to the bottom and the tail gas obtained by the reaction, the gases can flow downward uniformly to the gas outlets on the chassis to be discharged and the gases can be distributed uniformly in the entire furnace. The advantage of uniform gas distribution in the furnace can be more remarkable when the chassis of the high-capacity reducing furnace is provided with a plurality of gas outlets. As the gas in the furnace is distributed uniformly, the deposition rate of silicon on the surface of the silicon rod can be accelerated, the thickness of the obtained rod-shaped polysilicon product is uniform from top to bottom and both quality and yield of the product can be increased.

The invention discloses a production method for preparing an m-nitrobenzenesulfonic acid by a tubular sulfonation reactor and relates to the production method of a chemical product. A production device comprises a nitrobenzene storage tank (1), a sulphur trioxide storage tank (2), the tubular sulfonation reactor (3), a kettle sulfonation reactor (4), a material delivery pump (5), a spraying pump (6), a connecting pipeline and accessories (a valve, a flow meter, a thermometer, an anti-explosion film, sight glass and the like). Nitrobenzene and a sulphur trioxide sulfonating agent enter the tubular sulfonation reactor (3) in proportion, the tubular sulfonation reactor (3) and the kettle sulfonation reactor (4) are used in series, or the tubular sulfonation reactor (3) is used independently.The invention is applied to continuous or discontinuous sulfonation reaction, good in mixing and heat transfer effects, high in reaction speed, high in production efficiency and high in operational flexibility. The production device and the production method which are provided by the invention are applied to various sulfonation reaction production processes.

An in-situ load corrosion simulation loop system of a high-temperature and high-pressure gas-liquid two-phase H2S/CO2 environment comprises a control cabinet, a high-temperature high-pressure kettle, a turbofan, a gas flowmeter, a turbine pump, a liquid flowmeter, a high-pressure-resistant flexible tube, a pressure-resistant sight glass, a temperature sensor, a test section and a hoisting device. The in-situ load corrosion simulation loop system is a corrosion loop test device which can accurately simulate the flowing regimes of dynamically changing gas-liquid two-phase flow of an oilfield site and the real stress and the dip angle of a pipe. The in-situ load corrosion simulation loop system can be used for studying the influence law and mechanism of load, dip angle and flow pattern of multiphase flow on internal corrosion of pipelines, meanwhile, can be used for evaluation and optimization study on internal pipeline sulfate reducting bacteria corrosion, internal pipeline sand-carrying scouring, a corrosion inhibitor, a bactericide and an anti-sludging agent.

The invention discloses an experimental device for the evaporation, absorption and heat and mass transferring of a falling film of a vertical tube, which comprises a closed and communicated circulating system consisting of basic parts of a generator, an absorber, a pressure reducing valve, a heat exchanger, a heating device and a cooling device; the circulating system is provided with a temperature measuring system, a pressure measuring system and a flow measuring system respectively so as to realize the tracking and monitoring on the condition of the temperature, the pressure and flow variation of a research working medium in the circulating system. The device has the advantages that: the closed and communicated circulating system consisting of the vertical tube generator, the vertical tube absorber, a connecting pipeline of the research working medium and the like is provided with sight glass for conveniently observing a film forming flow state; the measuring system can realize the tracking and monitoring on the condition of the temperature, the pressure and flow variation of the research working medium in the circulating system, can carry out the thermal property research and the heat and mass transferring experiment research of a plurality of working media and has compact structure, convenient operation, visualization, intuition and reliable safety performance.

An improved level indicator takes advantage of the universal visual impression of typical sight glasses, but without the disadvantages of a physical sight glass protruding from the main body of the reservoir. In addition, other quantities are measured, including two-phase presence in a drainage pipe, temperature of the liquid product measured against either the drain pipe or reservoir, and temporal passage. Each of the measured quantities can result in an individual visual indication, or can thresholded combinationally to provide a combined threshold limit for initiating visual indication. A sealed unit is provided low on a food dispensing reservoir and upstream of a dispensing valve with a sensor in fluid communication with the static pressure in the dispensing valve. Because the sealed unit is in communication with the liquid in the reservoir at the lower position only, several alternatives may be utilized to equate the static pressure with the liquid level in the food service container reservoir.

A valve, such as a liquid level sight glass gage valve, has a valve unit and a passageway that extends through the valve unit. The passageway has a stem receiving area, a seal receiving area, and a bonnet receiving area that has a non-circular inner perimeter. A packing assembly is provided to isolate the bonnet receiving area from the fluid path. A bonnet is located within the bonnet receiving areas and has a non-circular outside surface for mating relationship with the non-circular inner perimeter of the valve unit. A valve stem is in sealing relationship with the packing assembly and selectively engages a valve seat. The stem threadably engages the bonnet. A bonnet nut is threadably received on the valve unit for securing the bonnet within the valve unit and allowing axial movement of the bonnet against the packing assembly, thereby effecting compression of the packing.

The present invention relates to a compression/injection mixed refrigerating machine unit in the field of refrigerating technology. Said invention includes compressor, oil separator, condenser, high-pressure liquid storage device, filtering dryer, sight glass, electromagnetic valve, two-stage injector, low-pressure liquid storage device, thermal expansion valve and evaporator. Said invention also provides their connection mode and its working principle.

The invention relates to a local dry-type welding small-sized drainage device which mainly comprises a drainage hood body (1), a small-sized soldering gun (2) and a miniature underwater welding optical fiber sight glass (3), wherein the drainage hood body (1) mainly comprises a hood body upper end cover (10), a locking sleeve (11), a water seepage sleeve (12) and a lower end cover (13), the mall-sized soldering gun (2), and the miniature underwater welding optical fiber sight glass (3) and a high-pressure gas filter (4) are arranged in the drainage hood body (1). In the invention, sponge can always keep moist in the welding process by high-pressure water column poured into the water seepage sleeve to fulfill the function of protecting the sponge; the drainage hood body (1) is arranged underwater above drainage sponge (15) and is sleeved with a sealing sleeve (14), high-pressure gas is led into the body, water is drained through the drainage sponge (15), and then, underwater local dry-type welding can be carried out. The invention has the advantages of simple structure, stable and reliable work, low cost, easy popularization and simple use, maintenance and repair.