40 results about "Tube Capillary" patented technology

The invention discloses an evaporator and storage equipment, and belongs to the technical field of refrigeration. The evaporator comprises a base plate, an evaporation pipe, a capillary pipe and a silencer, the evaporation pipe is arranged on the base plate, and the outlet end of the evaporation pipe is used for being communicated with the outside; the capillary tube is arranged on the substrate; the inlet end of the capillary tube is communicated with the outside; the silencer comprises a shell and at least one perforated plate, the shell forms a containing cavity, the outlet end of the containing cavity is communicated with the inlet end of the evaporation pipe, the inlet end of the containing cavity is communicated with the outlet end of the capillary pipe to form a heat dissipation loop allowing a refrigerant to flow, the perforated plate is installed in the containing cavity, and a plurality of through holes are formed in the perforated plate. And the axis of the through hole is parallel to the flowing direction of the refrigerant. The silencer is arranged between the capillary tube and the evaporation tube, and the silencer comprises the shell and the perforated plate located in the shell, so that the transition length of a refrigerant from the capillary tube to the evaporation tube is prolonged as much as possible, fluid noise and vibration are weakened, the noise reduction effect is improved, and the use experience of a user is improved.

The invention discloses an evaporator and storage equipment, and belongs to the technical field of refrigeration. The evaporator comprises a base plate, an evaporation pipe, a capillary pipe and a noise reduction pipe assembly, the evaporation pipe is arranged on the base plate, and the outlet end of the evaporation pipe is used for communicating with the outside; the capillary tube is arranged on the substrate; the inlet end of the capillary tube is communicated with the outside; the noise reduction pipe assembly is arranged on the base plate, the inlet end of the noise reduction pipe assembly is communicated with the outlet end of the capillary pipe, the outlet end of the noise reduction pipe assembly is communicated with the inlet end of the evaporation pipe, the inner diameter of the noise reduction pipe assembly is larger than the outer diameter of the capillary pipe, and the outer diameter of the noise reduction pipe assembly is smaller than the inner diameter of the evaporation pipe. The noise reduction pipe assembly is arranged between the capillary pipe and the evaporation pipe, so that the process that a refrigerant flows from the capillary pipe to the evaporation pipe is smoother, airflow noise caused by rapid pressure change and rapid flow speed change is reduced, the overall operation of the evaporator is more stable, the service life of a system is prolonged, and the service life of the system is prolonged. And the use experience of the user is also improved.

The invention discloses a core-sheath / parallel structure hybrid nanofiber membrane, a preparation method, a spinning head and a high-voltage electrostatic spinning device. The spinning head comprises a transversely-arranged cylindrical spinning solution storage device with spinneret orifices in the bottom end and a plurality of stainless steel capillary tubes penetrating through the cylindrical spinning solution storage device. And the capillary tubes are gathered above the spinning solution storage device to form two common fluid inlets. Part of the capillary tubes and spinneret orifices in the bottom of the cylindrical spinning solution storage device are arranged in parallel to form parallel outlets of two fluids; the other part of the stainless steel capillary tube directly passes through the center of the spinneret orifice of the cylindrical spinning solution storage device to form a coaxial outlet of the two fluids; and the parallel outlets and the coaxial outlets are uniformly distributed in a staggered manner at the bottom of the transverse storage device. According to the spinning device, an outlet jointly formed by a spinneret hole in the bottom of a spinning head and a metal capillary tube serves as a template, different multi-strand microfluid combinations are guided into a high-voltage electrostatic field, and the core-sheath / parallel structure hybrid nanofiber membrane is directly prepared in batches in a single step.

The utility model relates to the technical field of clean composite energy centralized energy supply systems, and discloses an energy-saving efficient medium-low temperature cold water coupling cold supply system. The utility model relates to an energy-saving efficient medium and low temperature cold water coupling cold supply system, which comprises refrigeration equipment, namely conventional refrigeration equipment, medium temperature refrigeration equipment, and cold release equipment, namely a fresh air handling unit, a dry type fan coil, a capillary tube and a floor radiator, wherein a cold water outlet of the conventional refrigeration equipment is connected with a cold water inlet of the fresh air handling unit through a conveying system; a cold water outlet of the fresh air handling unit is connected with a cold water inlet of the tail end cold release equipment through a conveying system, a cold water outlet of the dry type fan coil is connected with a cold water inlet of the capillary tube and the floor radiation through a conveying system, and a cold water outlet of the capillary tube and the floor radiation is connected with a cold water outlet of the medium-temperature refrigeration equipment through a conveying system. A cold water outlet of the medium-temperature refrigeration equipment is connected with a cold water inlet of the conventional refrigeration equipment through a conveying system, the conveying system is a middle pipeline system, and a circulating water pump is arranged in the middle pipeline system.

The invention relates to a geological deformation monitoring system, which comprises a main pipe, a capillary pipe, a solid filler, a liquid filler, a microswitch, a parallel plate capacitor, a capacitance acquisition device and an alarm device, the first end of the main pipe is closed, and the second end is connected with the first end of the capillary; the second end of the capillary is connected with the parallel-plate capacitor; the capacitance acquisition device is connected with the parallel-plate capacitor to detect capacitance; the microswitch is arranged near the second end of the main pipe; the main pipe is filled with solid filler and liquid filler, and the solid filler moves when the main pipe deforms and enables the microswitch to be switched from a closed state to an open state. The liquid filler flows into the parallel-plate capacitor through the capillary tube when the main tube deforms, so that the capacitance of the parallel-plate capacitor is changed; the alarm device carries out geological deformation alarm according to the state change of the microswitch and / or the capacitance change detected by the capacitance acquisition device. According to the invention, a capacitance-mechanical dual-mode sensing mechanism is combined, and dual-mode early warning is realized.

This invention belongs to the field of optical fiber communication technology and discloses a low-refractive-index doped mother tube, a capillary, a preparation method, and applications. The invention first deposits a low-refractive-index doped silicon dioxide layer on the inner surface of a pure silicon dioxide liner to prepare a low-refractive-index doped mother tube. Then, the low-refractive-index doped mother tube is heated to its softening temperature and drawn to obtain a low-refractive-index doped capillary. The minimum relative refractive index difference of the low-refractive-index doped silicon dioxide layer in this invention is -1.8% to -2.6%. The low-refractive-index doped capillary designed in this invention can be used to prepare optical fiber power combiners and can improve the performance of the combiners.

The utility model discloses a fresh air top air supply and top air return design structure based on a residential radiation air conditioning system. The fresh air top air supply and top air return design structure comprises a ceiling structure composed of a keel structure layer, a gypsum board, a capillary network, a gypsum mortar layer and a putty emulsion paint layer. The height of the suspended ceiling structure is not greater than 100mm; a capillary main pipe is laid in the keel structure layer between the gypsum board and the floor, and capillary tubes in the capillary network penetrate through the gypsum board to be communicated with the capillary main pipe; fresh air pipelines are laid in the keel structure layer between the gypsum board and the floor slab and comprise an air supply pipeline and an air return pipeline, the air supply pipeline and the air return pipeline are provided with an air supply opening and an air return opening respectively, and holes used for installing the air supply opening and the air return opening are formed in the gypsum board; on the premise of ensuring the indoor clear height of 2.60 m, the floor height of the residence can be designed to be 2.95 m, for a residence building with the limited height of 80 m, one more floor can be built compared with a floor air supply design, the plot ratio of the building is increased, and large economic benefits are brought.

The present disclosure belongs to the technical field of agricultural high-efficiency water-saving irrigation, and relates to a magnetization control apparatus for preventing clogging of a drip irrigation system irrigator and a control method thereof. The method includes: pumping irrigation water from the water source project through the first water pump, passing through the drip irrigation head control hub, and entering the pool; pumping the irrigation water through the second water pump, flowing through the first copper valve, and entering the magnetized pipe; the irrigation water after treated by the magnetizer returning to the pool through the flow rate monitor and the first valve in turn; when water quality of the irrigation water meets water quality requirements entering the capillary pipes, turning off the second water pump and stopping the cyclic magnetization treatment; the third water pump turning on; pumping the irrigation water after the cyclic magnetization treatment from the pool through the third water pump, and filtering through the mesh filter, entering the branch pipe and the capillary pipes through the second valve again; and the irrigation water flowing from the irrigators for irrigation. The present disclosure effectively solves the clogging problem of the drip irrigation system irrigator, has the advantages of cleanliness and high-efficiency; improves crop yield and quality, has a simple operation mode, and is convenient for users to operate.

A method of extruding a nanoparticle composition onto a substrate is disclosed. A nanoparticle composition dispenser includes a capillary tube. The capillary tube is oriented such that a first longitudinal axis extending through the capillary tube is tilted at an oblique angle relative to a vertical axis. The capillary tube is positioned above the substrate such that the capillary tube and its reflection from the substrate are visible within a field-of-view of a camera. Digital images of the capillary tube and its reflection are captured and processed to detect the first longitudinal axis extending through the capillary tube and a second longitudinal axis extending through the reflection. A point of intersection of the first longitudinal axis and the second longitudinal axis is calculated to estimate a zero-height position. The capillary tube is positioned at a start position in accordance with the zero-height position.

The present application provides an ion source and a mass spectrometer that further reduce the dead volume of the connecting portion of a pipe and a capillary. The ion source has a capillary and a pipe. The capillary has a large-diameter portion that forms a capillary upstream end surface on the upstream side, and the large-diameter portion has a large-diameter portion downstream surface on the downstream side. The pipe has a pipe downstream end surface on the downstream side. The capillary holding portion has a hole through which the capillary downstream end surface can pass and a surface on which the large-diameter portion downstream surface can be disposed. The ion source has a pipe holding portion that holds the pipe. The capillary holding portion and the pipe holding portion are configured to connect the capillary and the pipe by bringing the capillary upstream end surface and the pipe downstream end surface into contact.

The utility model provides a vehicle humidifying system and a vehicle, the system is applied to the vehicle, the system comprises a humidifying device, the humidifying device comprises a humidifying component, a humidifying controller and a humidifying container, the humidifying controller is connected with the humidifying component to control whether the humidifying component is in a working state or not, and when the humidifying component is in the working state, the humidifying container is connected with the humidifying component; the humidifying component is used for humidifying the vehicle by using the humidifying water in the humidifying container; the water collecting tank is connected with the humidifying container to provide humidifying water for the humidifying container; one end of the capillary tube extends into the water collecting tank, the other end of the capillary tube extends into the humidifying container, and the water collecting tank is connected with the humidifying container through the capillary tube, so that the humidifying water is guided into the humidifying container from the water collecting tank. According to the vehicle humidifying system, the humidifying water in the water collecting tank can be guided into the humidifying container through the capillary tube, the water source of the humidifying device is guaranteed, meanwhile, the vehicle-mounted humidifying structure is simplified, and the stability and maintenance convenience of the system are improved.

The application relates to a kind of unpowered brackish water desalination device, it includes transparent evaporation tank, water collecting pool, transparent evaporation tank bottom lays iron powder and carbon powder, the upper portion of transparent evaporation tank is provided with multiple layers of grid plate, each layer of grid plate is formed by multiple strip-shaped plates side by side, two adjacent strip-shaped plates are arranged at intervals, the interval between two adjacent strip-shaped plates in the same layer is evaporation channel, each strip-shaped plate is provided with groove along the length direction, black sponge is placed in the groove, a plurality of fixing holes are arranged in the groove bottom, one capillary tube is fixed in each fixing hole, the upper end of the capillary tube is communicated with the groove, and the lower end of the capillary tube is close to iron powder and carbon powder;Several water intercepting strips are arranged above the uppermost grid plate in an inclined manner, the water intercepting strips are arranged staggered in height, the lower part of the water intercepting strips is inserted into the water outlet hole, and the water outlet hole is a strip-shaped hole;The water inlet of transparent evaporation tank is arranged below the lowermost grid plate;Transparent evaporation tank is also provided with a vent hole.The application is used for treating brackish water.

The invention discloses a high-resolution cross-scale X-ray fluorescence spectrum high-flux characterization device and method. The device comprises a mu-XRF light source (an X-ray tube and a capillary X-ray lens), a plurality of SDD detectors, a sample box and a two-dimensional mobile platform which are sequentially arranged from top to bottom, x-rays emitted by the X-ray tube are restrained by the capillary X-ray lens into focuses with the diameter of 5 microns to vertically irradiate a sample, the whole mu-XRF light source adopts a fixed support structure capable of moving up and down, and cross-scale adjustment of beam spots in the range of 5 microns to 1 mm on the surface of the sample is realized; the plurality of SDD detectors are arranged at the periphery of the capillary X-ray lens in a surrounding manner at a set inclination angle, and synchronously collect spectral information of X-ray fluorescence; a sample box is placed on the two-dimensional moving platform, and the sample box can contain plane samples of different sizes. According to the invention, a high-throughput XRF device structure is independently developed, and rapid and accurate cross-scale X-ray fluorescence spectrum high-throughput quantitative characterization can be realized.

The utility model provides a heat exchange system and refrigeration equipment, the heat exchange system comprises: a first heat exchanger provided with a connecting pipe; the capillary tube comprises an outlet end which is communicated with the connecting tube; the silencer wraps at least part of the outer side walls of the capillary tube and the connecting tube, and the connecting position of the capillary tube and the connecting tube is located in the silencer. The heat exchange system comprises a first heat exchanger, a capillary tube and a silencer, the first heat exchanger is provided with a connecting pipe, the outlet end of the capillary tube is communicated with the connecting pipe, and a refrigerant enters the connecting pipe through the capillary tube and then enters the first heat exchanger. The connecting position of the outlet end of the capillary tube and the connecting tube is located in the silencer, so that eruption sound generated when a refrigerant enters the connecting tube from the capillary tube can be absorbed by the silencer, the refrigerant noise is greatly reduced, and the structures of the capillary tube and the connecting tube do not need to be changed. And therefore, the throughput of the refrigerant and the heat exchange effect of the heat exchange system are not influenced.

The invention provides a self-adaptive anti-condensation control system based on a rear-mounted anti-condensation pipe and a refrigerator. The self-adaptive anti-condensation control system comprises a compressor, a condenser, a filter, an electromagnetic valve, the anti-condensation pipe, a bypass pipe, a capillary pipe and an evaporator. The compressor, the condenser, the filter, the electromagnetic valve, the capillary tube and the evaporator are sequentially connected to form a refrigerating loop; the electromagnetic valve is provided with an inlet and two outlets; the inlet is connected with one end of the filter away from the condenser, the first outlet is connected with an inlet of the anti-condensation pipe, and the second outlet is connected with an inlet of the bypass pipe; an outlet of the anti-condensation pipe and an outlet of the by-pass pipe are connected with one end, far away from the evaporator, of the capillary pipe; the anti-condensation pipe is installed on the periphery of the freezing chamber and located at the rear end of the condenser in the refrigerant flowing direction. The flow path of the refrigerant is achieved through the electromagnetic valve, the opening and closing states of the two outlets of the electromagnetic valve are controlled according to the operation requirement of the refrigerator, and therefore the different flow directions of the refrigerant are achieved.

When laser-irradiation portions of N capillaries with capillary numbers n=1, 2, . . . , and N are arranged on a same plane, a laser-irradiation intensity of each capillary is denoted by L(n), and an output intensity of each capillary by a computer when a light emitting substance having an equal concentration exists inside each capillary is denoted by H(n), an absolute value of an average value of a second derivative of H(n) becomes smaller than an absolute value of an average value of a second derivative of L(n) for any refractive index n3 of a separation medium in a range of 1.33≤n3≤1.41 by digital correction by the computer, which changes according to the refractive index n3 (see FIG. 11).

The application provides an automatic sampling device applied to array capillary electrophoresis in the field of electrophoretic detection, which comprises a sampling unit and a multi-axis machine table, the sampling unit comprises a sampling cylinder table, a rotating feeding mechanism and a sliding frame are arranged in the sampling cylinder table, vertical capillary tubes are fixed on the sliding frame, outer protective tubes are sleeved with the capillary tubes, a flushing gap is arranged between the capillary tubes and the outer protective tubes, the bottom end of the outer protective tube is higher than the bottom end of the capillary tube, the top end of the outer protective tube is lower than the top end of the capillary tube, and a detector for detecting samples in the capillary tubes is fixed on one side of the sampling cylinder table; the capillary tubes are protected by the outer protective tubes and the flushing gap is designed, so that the capillary tubes can be regularly cleaned and maintained, the good performance of the capillary tubes is ensured, the sampling execution mechanism is integrated with multiple functions such as power supply, gel supply and cleaning agent supply, the detection efficiency of gel electrophoresis is effectively improved, the automatic sampling device has market prospects, and is suitable for popularization and application.

The utility model discloses a heat exchange distribution pipe assembly which comprises a distribution head, a heat exchange pipe and a heat exchange pipe. The capillary tubes are connected to the other end of the distribution head; the device further comprises a driving mechanism and a movable heating and deicing mechanism, the driving mechanism is connected to the distribution head through a fixing frame, the movable heating and deicing mechanism is connected to the driving mechanism and the capillary tube, and the driving mechanism drives the movable heating and deicing mechanism to move up and down, so that the capillary tube is deiced. According to the utility model, ice on the capillary tube can be removed, the capillary tube can be cleaned, the normal work of the distribution pipe assembly is ensured, and the service life of heat exchange equipment is prolonged.

The utility model provides a refrigeration device. The refrigeration device comprises an evaporation plate and a capillary tube mechanism, a refrigeration pipeline formed in a blowing mode is arranged in the evaporation plate; according to the flowing path of a refrigerant, the refrigeration pipeline sequentially comprises a pipeline connector, a slender pipe, a reducing pipe, an evaporation pipeline and a backflow pipe, and the backflow pipe is connected into the slender pipe. The capillary tube mechanism comprises a capillary tube bundle and a sleeve, the capillary tube bundle is sleeved with the sleeve, and the capillary tube bundle is inserted into the slender tube through the pipeline connector; the near end of the sleeve covers the pipeline connector and is fixedly connected with the evaporation plate. According to the utility model, the capillary tube bundle and the sleeve form an inner and outer sleeve structure, a refrigerant flows in and out, and a liquid refrigerant flowing in the capillary tube is cooled by a gas refrigerant gas flowing back, so that the refrigeration efficiency can be effectively improved.

The invention discloses an oil and gas well capillary tube dosing and pressure measuring integrated system and a dosing and pressure measuring method, and the system comprises a ground dosing device which is arranged on the ground; the data transmission physical wave pickup unit is arranged at a chemical outlet of the ground chemical adding device; the data transmission physical wave pickup unit is electrically connected with a ground dosing device; the physical wave data transmission pressure gauge is arranged between the oil well pump and the screen pipe; the physical wave data transmission pressure gauge is electrically connected with the data transmission physical wave pickup unit; the inlet end of the capillary tube is connected with the data transmission physical wave pickup unit, and the outlet end of the capillary tube is connected with the physical wave data transmission pressure gauge; the capillary tube is disposed between the annulus of the tubing and the casing. According to the scheme, the construction process is simple, and annulus pressure monitoring is completed while efficient paraffin removal and corrosion prevention under an oil and gas well are achieved, and the gas well foam drainage effect is improved. The method has the advantages of low cost, simplicity in construction, capability of effectively prolonging the pump inspection and well repair period and the like.

The invention relates to an air-to-water heat pump series, comprising several product classes classified according to their energy efficiency, each containing air-to-water heat pumps of a graded housing size and a graded nominal heating output, wherein the heat pumps comprise, in addition to a heat exchanger, a compressor, a condenser, an inverter, fans, a 4 / 2-way switching valve, a collector, an expansion valve, connecting pipes and a check valve and hydraulic components, wherein the finned tube heat exchangers in the housings of the same heat pump housing size from product classes of lower energy efficiency to product classes of higher energy efficiency have lower refrigerant-side pressure losses of the finned tube capillaries than in the housings of the same heat pump housing size from product classes of higher energy efficiency,and wherein in each product class, starting from the heat pump in the position of the stage with the highest rated heating output to the heat pump in the position of the stage with the lowest rated heating output, the same stage position is occupied by the same rotary piston compressor, whereby the compressor for the same stage position fully utilizes its speed range in the product class with the lowest energy efficiency and to a limited extent in the product classes with the higher energy efficiency.

The utility model relates to a gradienter for assisting wet etching of a solar cell. The gradienter comprises a U-shaped tube and a capillary tube, the left end and the right end of the U-shaped tube are connected with a left capillary tube and a right capillary tube respectively, and the left capillary tube and the right capillary tube are provided with scales. The U-shaped tube is filled with liquid, and the liquid also enters the left capillary tube and the right capillary tube; the left capillary tube and the right capillary tube are respectively fixed on the end surfaces of a rotating shaft corresponding to adjacent rollers in the chain type machine for wet etching, and the liquid level in the left capillary tube and the liquid level in the right capillary tube are positioned at the same scale position after the left capillary tube and the right capillary tube are fixed; if the liquid level of the left capillary tube and the liquid level of the right capillary tube are not at the same liquid level height, height deviation occurs between adjacent rollers in the chain type machine for surface wet etching. The device has the advantages of being easy to operate, convenient to maintain and high in measuring precision.

The invention provides an automatic sample introduction device applied to array capillary electrophoresis, which is applied to the field of electrophoresis detection, and comprises a sample introduction unit and a multi-axis machine table, the sample introduction unit comprises a sample introduction cylinder table, a rotary feeding mechanism and sliding frames are arranged in the sample introduction cylinder table, vertically arranged capillary tubes are fixed on the sliding frames, outer protective tubes sleeve the outer sides of the capillary tubes, and the outer protective tubes sleeve the sample introduction cylinder table. A flushing gap is formed between the capillary tube and the outer protective tube, the bottom end of the outer protective tube is higher than that of the capillary tube, the top end of the outer protective tube is lower than that of the capillary tube, and a detector for detecting a sample in the capillary tube is fixed on one side of the sample injection barrel table; through the protection of the capillary tube by the outer protection tube and the design of the flushing gap, the capillary tube can be regularly cleaned and maintained conveniently, the good performance of the capillary tube is ensured, the sample injection execution mechanism integrates multiple functions of power supply, gel supply, cleaning agent supply and the like, the detection efficiency of gel electrophoresis is effectively improved, and the application has market prospects and is suitable for popularization and application.

An underwater shock wave peak value measuring sensor based on a fiber bragg grating comprises a base, a hose, a capillary tube, an optical fiber and a hollow ball. The upper end of the sealed hose is fixed to the bottom of the base, the capillary tube is arranged in the center of the hose, the upper end of the capillary tube is fixed to the base, the optical fiber is arranged in the center of the capillary tube, the upper end of the capillary tube is fixed to the base, the grating is arranged in the middle of the optical fiber, the hollow ball is arranged at the bottom of the capillary tube and located in the hose, the hose is filled with filling liquid, and a balancing weight is arranged at the bottom of the hose. The sensor is simple in structure, convenient to operate, capable of sensing shock waves from any direction underwater, high in reliability and frequency response, flexible, practical, capable of rapidly measuring the peak value of the shock waves in water and low in cost.

The present invention discloses capillary-feeder modules and modular capillary-feeder bait stations for attraction, feeding, and control of nuisance flies that feed via a proboscis and methods therein. The bait stations include: capillary-feeder modules having: a liquid bait conducive to sugar-based feeding and / or blood-based feeding, a bait reservoir, and a capillary for providing feeding access while preventing bait loss due to dripping or evaporation regardless of the capillary orientation; optical targets configured for providing a high-contrast pattern of a light-to-dark or dark-to-light contrast pairing to the capillary relative to the reservoir; and attractant-diffusion modules having: an attractant; and a diffusion mesh for containing the attractant and regulating attractant diffusion; wherein each capillary-feeder module is proximally disposed to an attractant-diffusion module. An intermittently-applied voltage (IAV) can electrify the bait or the capillary exit orifices without fly repulsion to replace lethal toxins for killing the flies with electrocution as the lethal agent.

The application discloses a capillary hydrogen storage device and a manufacturing method of a capillary hydrogen storage unit thereof. The capillary hydrogen storage device comprises a capillary hydrogen storage unit, and the capillary hydrogen storage unit comprises a hydrogen storage unit support pipe, the upper end of the hydrogen storage unit support pipe is a hydrogen storage unit open end, the hydrogen storage unit open end is connected with a sealing valve, the lower end of the hydrogen storage unit support pipe is a hydrogen storage unit closed end, a plurality of primary composite pipes are arranged in the hydrogen storage unit support pipe, and capillary sub-pipes are arranged in the primary composite pipes and the gaps between the primary composite pipes and the hydrogen storage unit support pipe. The capillary hydrogen storage unit is wrapped by a shell and a buffer layer, the shell is made of a thin-wall metal and provides impact protection for the internal capillary hydrogen storage unit. The buffer layer is arranged between the shell and the capillary hydrogen storage unit, the buffer layer is made of relatively soft organic materials such as foam glue or epoxy resin, and the buffer layer can reduce the damage of external impact force to the internal capillary hydrogen storage unit. The capillary hydrogen storage device has the advantages of compact structure, light weight and high mechanical strength.

The utility model discloses an anti-ponding municipal road which comprises a road and a sidewalk, a plurality of curbs are arranged on both sides of the sidewalk, the curbs are mutually spliced together, the road and the sidewalk are separated through the curbs, one end of each curb is inserted into the ground, the other end of each curb is arranged at the upper end of the ground, and the road and the sidewalk are arranged on the road. Rainwater wells are arranged on the road at intervals, the sidewalk sequentially comprises a surface layer, a binding layer, a base layer and a cushion layer from top to bottom, a plurality of capillary tubes are vertically inserted into the top of the binding layer, the bottoms of the capillary tubes make contact with the base layer, a plurality of first permeable pipes are installed on the top of the base layer, and a plurality of second permeable pipes are further installed in the base layer. Each second permeable pipe is mounted at the bottom of the corresponding first permeable pipe, one end of each second permeable pipe is communicated with the curb, and drainage holes corresponding to the second permeable pipes are formed in the curb, so that the problems that an existing sidewalk road is poor in drainage performance, water is prone to being accumulated, and walking of people is affected are solved.

The invention belongs to the technical field of analytical chemistry and industrial gas detection, and discloses a gas chromatography method for detecting trace sulfur in synthesis gas, which comprises a sample injector, a chromatographic column, a detector and a data processing unit, and is characterized in that the system adopts an open tubular capillary chromatographic column with short size and small inner diameter; according to the present invention, by combining the constant temperature box and the chromatographic column flow control mode, various sulfides (such as H2S, COS and the like) in the synthesis gas are not separated in the chromatographic system, but flow out through the combined chromatographic peak, and based on the characteristics of good inertness and low adsorption of the system, only the single sulfide standard gas (such as COS standard gas) is required to perform calibration, such that the calibration accuracy is high; the total sulfur content in the synthesis gas can be rapidly and accurately quantified by detecting the area of the combined peak. The method is short in analysis time, low in detection limit and suitable for rapid quality monitoring of the synthesis gas process.

The present invention discloses a caged gas device for tracer gas leak detection, comprising a support platform, a front-end collection device, an air pipe, a capillary tube, and a surrounding wall. The bottom of the support platform, the peripheral wall of the surrounding wall, and an opening form a semi-sealed space, and the capillary tube is connected to the semi-sealed space. In the caged gas device of the present invention, since the tracer gas detection head of the leak detector is in a vacuum state, the presence of the capillary tube creates a pressure differential between the detection head and the semi-sealed space, thereby forming a semi-sealed negative pressure cavity within the semi-sealed space, thereby forming a directional flow of tracer gas, ensuring that leaked tracer gas can completely enter the semi-sealed negative pressure cavity and enter the detection head through the capillary tube and the air pipe for detection. Since a local negative pressure can be formed within the semi-sealed space, a "convergence" effect is formed on the surrounding gas, making it less likely to miss detections, and leaked tracer gas will not "escape" the semi-sealed space with the local negative pressure, thereby enabling quantitative testing.

The application provides a preparation device for a flexible long wire based on liquid metal, and particularly, the preparation device comprises a flexible hose, a capillary tube and a sealing structure, the capillary tube is inserted into the end of the flexible hose in cooperation, and the sealing structure is arranged at the connecting position between the capillary tube and the flexible hose, and the sealing structure is used for sealing the connecting position. The liquid metal can be injected into the flexible hose through the capillary tube, so that the flexible wire is formed in the flexible hose. The connecting position between the flexible hose and the capillary tube is provided with the sealing structure, the sealing effect of the connecting position is improved, the liquid metal in the preparation device is not disturbed by air, and the liquid metal flexible long wire with good quality is obtained.