80results about How to "Shorten the pipe length" patented technology

Pressure detecting apparatus includes: a housing; a pipe extending from one end of the housing and having an elongated shape; and a pressure sensitive element for detecting pressure and outputting a signal corresponding to the pressure. The pipe includes a top end capable of receiving the pressure. The pressure sensitive element is disposed on the top end of the pipe. The housing includes a connector for retrieving the signal from the pressure sensitive element. The pipe further includes a wiring member disposed inside the pipe so that the wiring member connects between the pressure sensitive element and connector electrically.

The invention discloses a phase change heat storage type ground heat exchanger, and belongs to the field of ground-source heat pump air conditioners. The phase change heat storage type ground heat exchanger is composed of one or more phase change heat storage type ground heat exchanging wells, and each phase change heat storage type ground heat exchanging well comprises a water circulation U-shaped pipe, a phase change heat storage pipe, phase change heat storage materials and backfill materials, wherein the water circulation U-shaped pipe is arranged in a drilled well, the at least one phase change heat storage pipe is arranged between a water inlet pipe and a water outlet pipe of the water circulation U-shaped pipe, the phase change heat storage pipe is filled with the phase change heat storage materials, the two ports of the phase change heat storage pipe are closed, and gaps between the drilled well wall and the water circulation U-shaped pipe and between the water circulation U-shaped pipe and the phase change heat storage pipe are filled with the backfill materials. According to the phase change heat storage type ground heat exchanger, the heat storage capacity in the drilled well is improved, the ground heat short circuits are reduced, and therefore the heat exchange performance of the ground heat exchanger is strengthened.

A fluid flow stabilizer for use in a flow of fluid in a conduit between a source of turbulence and a fluid control device. The stabilizer comprises a fluid conduit section having a first end with a mounting arrangement for mounting the first end to the fluid conduit and a second end with a mounting arrangement for mounting the second end to the fluid conduit, the fluid conduit section having a fluid passage therethrough to allow fluid to flow from the first end to the second end, and a flow straightening device positioned in the fluid conduit section. The fluid conduit section may be constructed to absorb at least one of shock, vibration and alignment in the conduit.

The present invention belongs to the field of building material technology, and is especially backfill material for buried pipe in earth source heat pump air conditioning system. The backfill material for buried pipe in earth source heat pump air conditioning system consists of cement 100 weight portions, quartzite 200-250 weight portions, defoaming agent 0.05-0.1 weight portion, bentonite 1-2 weight portions and water reducing agent 0.2-2 weight portions. When used, the said components are mixed while adding water in the construction site, and the mixture is injected into the drilled hole. The backfill material has high heat conducting coefficient, high operation performance, high impermeability, high strength and no environmental pollution.

The invention relates to a system of high and low pressure bypasses. The high pressure bypass comprises a high pressure steam transfer valve, a high pressure bypass water spray valve connected in series with the high pressure steam transfer valve, a high pressure water spray isolation valve arranged in front of the high pressure bypass water spray valve, and a medium pressure cylinder, a circulating pipeline and a condenser which enter and are connected in series with a high pressure cylinder of superheated steam. The low pressure bypass comprises a low pressure bypass steam transfer valve, a low pressure bypass water spray regulating valve connected in series with the low pressure bypass steam transfer valve, and a low pressure bypass water spray isolation valve, a condensate and feed water pump and a low pressure cylinder which are arranged in front of the low pressure bypass water spray regulating valve; and the low pressure cylinder which enters reheat steam through the circulating pipeline is connected in series with the medium and high pressure cylinders. The pipelines of the valves are connected either in a Z shape or right-angled bends. The system has the advantages that four-stage airflow throttling and depressurization are realized so as to prevent erosion and damage of the valves; the Z-shaped arrangement and the multichannel right-angled bends greatly reduce noise; and the compact design of the system can reduce the cost, has effect of resisting cavitation, and can prolong service life.

The invention relates to a liquid sampling apparatus including: a sampling pipeline, a liquid discharge pipeline and a plunger pump which is connected to the sampling pipeline and liquid discharge pipeline, so that a liquid is sucked via the sampling pipeline and is discharged via the liquid discharge pipeline. The apparatus also includes: a peristaltic pump which is arranged on the sampling pipeline for pumping the liquid into the plunger pump; a controller for control coordinated action of the peristaltic pump and the plunger pump; a filter disposed between the peristaltic pump and the plunger pump; and a second pressure sensor and a first pressure sensor that are arranged at the front and the back of the filter. The controller controls the operation of the sampling apparatus according to pressure signals. In the apparatus, the liquid is sucked in a double-power manner, so that it is guaranteed that the interior of the plunger pump is under micro-positive pressure always. The structure not only increases suction speed of the liquid and reduces suction time, but also can avoid bubbles in the plunger pump and increases sampling precision.

The invention discloses a refrigerator heat exchange performance measurement and control device. A compressor, an auxiliary heat exchanger, a first bypass hand valve, a drying filter, a hot air passage, a flowmeter, an electric heating tape, an electronic expansion valve, a second bypass hand valve, a cold air passage and an evaporator form a loop via a pipeline. The auxiliary heat exchanger comprises a condenser, an electric heater, an auxiliary evaporator and a heat-exchange medium; the auxiliary evaporator is connected with an auxiliary compressor, an auxiliary condenser and a capillary through a pipeline. Two ends of the first bypass hand valve are connected with a measured condenser through first control valves, and two ends of the second bypass hand valve are connected with a measured evaporator through second control valves. The refrigerator heat exchanger performance measurement and control device further comprises a heat exchanger performance parameter data acquisition and measurement mechanism. By means of the refrigerant-refrigerant, refrigerant-air and system self-heating type cold and heat recovery, length of a system pipeline is shortened to the utmost extent and intermediate medium for energy transmission is reduced, thus, influence on measurement and control of small-size heat exchangers caused by external factors can be reduced effectively and then high-precision system test is achieved.

A negative pressure supply unit includes an electric vacuum pump including a motor part and a pump part placed in a case, and a cover member closing the case and is configured to supply negative pressure generated by the pump or in an engine intake pipe to a negative pressure chamber of a brake booster. The cover member includes: a suction passage for sucking a fluid from the negative pressure chamber into the pump part; a discharge passage for discharging the fluid ejected from the pump part to pump outside; and a branch passage branching from the suction passage to connect to an engine intake system. A first check valve provided in the discharge passage permits a fluid to flow only in a discharge direction. A second check valve provided in the branch passage permits a fluid to flow from the suction passage to the intake system.

The invention discloses an air conditioner outdoor unit piping, a method for forming a damping material on the piping and an air conditioner outdoor unit.The air conditioner outdoor unit piping comprises an air suction pipe section and an exhaust pipe section, and the damping material which has the damping and denoising properties is formed on the outer surfaces of the air suction pipe section and the exhaust pipe section.According to the air conditioner outdoor unit piping, the method for forming the damping material on the piping and the air conditioner outdoor unit, due to the fact that the damping material which has the damping and denoising properties is sprayed on the outer surfaces of the air suction pipe section and the exhaust pipe section of the air conditioner outdoor unit, vibration of the air suction pipe section and the exhaust pipe section can be weakened, and noise caused by vibration is reduced; the piping design on the air suction pipe section and the exhaust pipe section is simple; meanwhile, airflow noise caused by refrigerant circulating in the air suction pipe section and the exhaust pipe section can be reduced, vibration and noise of the air conditioner outdoor unit can be reduced, and the refrigerating efficiency of the air conditioner outdoor unit is improved.

The invention provides an oxygen mixing and uniform distribution device. The oxygen mixing and uniform distribution device comprises a main pipeline, an oxygen outer ring pipe annularly arranged outside the main pipeline at intervals, and a plurality of oxygen distribution branch pipes uniformly distributed at intervals along the periphery of the main pipeline, one end of each oxygen distributionbranch pipe is communicated with the oxygen outer ring pipe, and the other end of each oxygen distribution branch pipe is communicated with the main pipeline and is positioned in a longitudinal projection plane perpendicular to an axis of the main pipeline; and a connecting line of the center of one end of each oxygen distribution branch pipe and the center of the main pipeline forms a reference line, and an included angle between the axis of each oxygen distribution branch pipe and the corresponding reference line serves as an acute angle. The oxygen mixing and uniform distribution device hasthe beneficial effects that the arrangement structure is adopted by the multiple oxygen distribution branch pipes, so that airflow rotational flow of oxygen streams in the circumferential direction of the main pipeline can be realized, a better oxygen and air mixing effect is achieved, and the length of the pipeline required by air and oxygen mixing is shortened.

The invention belongs to the field of pesticide production, and particularly discloses a method and a device for producing clomazone. A tubular reactor is designed into two sections, and the internal temperatures of the two pipe sections are respectively controlled in a production process, so that reactants in the tubular reactor are respectively kept in different temperature ranges; and a catalyst is added into the tubular reactor to shorten the reaction time of a product and avoid producing impurities caused by long-time contact. The method and the device provided by the invention make use of the particularity of temperature controllability of the tubular reactor in the production process and the reaction contact time decreased by the catalyst to increase the product yield and shorten the reaction period.

A fuel cell system includes a fuel cell stack. The fuel cell stack includes a plurality of fuel cells stacked together in a stacking direction, and end plates provided at opposite ends of the fuel cells in the stacking direction. A fluid unit is provided on one side of the fuel cell stack. The fluid unit includes a heat exchanger for heating an oxygen-containing gas to be supplied to the fuel cell stack, and a reformer for reforming a fuel to produce a fuel gas.

A fuel cell vehicle includes a first tank, a second tank, first and second valves for releasing gas, a gas passage for supplying gas to a fuel cell via the first and second valves, a pressure-reducing valve for decompressing the gas, side members disposed on the respective sides of the vehicle, and a motor disposed rearward of the second tank and configured to drive wheels. The first tank is not disposed downstream of the second tank, on the gas passage. The pressure-reducing valve is disposed in a region located rearward of a rear end of the second tank in a vehicle front-rear direction, forward of a rear end of the motor in the vehicle front-rear direction, and between one of the side members and an extended line extended in the vehicle front-rear direction from a side wall of the motor. The pressure-reducing valve is disposed on the second valve side.

The present invention relates to an air conditioner. The air conditioner according to the present embodiment has a refrigeration capacity of 2kW to 7kW, inclusive, and uses R134a as a refrigerant circulating therein, and since a refrigerant pipe therein includes a ductile stainless steel pipe made of a material containing, at least, chrome (Cr), nickel (Ni), manganese (Mn) and copper (Cu), the refrigerant pipe can maintain strength and hardness as good as or better than those of a copper pipe, while also maintaining good processability.

The invention discloses a side water cooling engine structure for a motorcycle. A water cooling radiator is installed on the side face of the motorcycle engine. A fan is arranged on the inner side of the water cooling radiator. The fan is installed on a crankshaft of the motorcycle engine. An air guide disc is installed at the position, corresponding to cooling water pipes of the water cooling radiator, on the periphery of the fan. A radiator cover is installed on the outer side of the water cooling radiator. By means of the side water cooling engine structure for the motorcycle, the space of the whole motorcycle can be compact, the pipeline length of the cooling water pipes is shortened, the cooling circulation stroke is shortened, more heat can be brought away through the water cooling radiator, heat dissipation is improved, arrangement of the structure of the whole motorcycle is better facilitated, the overall performance of the engine is improved, and therefore the service life of the engine is prolonged, the water cooling radiator is protected, and the appearance of the whole motorcycle is more attractive.

The present invention relates to an air conditioner. The air conditioner according to the present embodiment has a refrigeration capacity of 7 kW to 11 kW, inclusive, and uses, as a refrigerant, a mixed refrigerant containing 50% or more of R32, and since a refrigerant pipe therein is made of a ductile stainless steel material having 1% or less of a delta-ferrite matrix structure with respect to the grain size area thereof, and includes a suction pipe guiding the suction of the refrigerant into a compressor and having an outer diameter of 15.88 mm, the refrigerant pipe can maintain strength and hardness as good as or better than those of a copper pipe, while also maintaining good processability.

The invention provides a heat pipe type buried pipe heat-exchanging device. The device comprises a first pipe, a second pipe and a driving device, wherein a heat pipe of the first pipe is made of plastic, and the first pipe is buried in soil to exchange heat with the soil; the heat pipe of the second pipe is made of a metal, the two ends of the second pipe are connected with the two ends of the first pipe, and the second pipe is exposed in air; and the driving device is arranged in the second pipe. The heat exchanging efficiency between an ordinary plastic pipe and the soil is improved by phase-change heat transfer, the length of the buried pipe is reduced, the flow resistance of fluid is reduced, and then the power consumption of a heat-exchanging system pump is effectively reduced.

The present invention provides a testing device testing a multi-cylinder engine including a plurality of ports including an intake port and an exhaust port in a pseudo driving state. The device includes a plurality of pressure inspection units and at least one opening/closing mechanism. Each of the plurality of pressure inspection units includes a pipeline connected to one of the plurality of ports, a sensor for detecting a pressure in the pipeline and a valve for opening/closing the pipeline. The opening/closing mechanism includes one actuator and a transmission mechanism connected to the actuator and transmitting a driving force of the actuator to an operation unit of each of the plurality of valves to open and close the plurality of valves.

An inflator assembly that has a shorter entire length and can be manufactured easily. The inflator assembly includes a pipe, a piston holder, first and second pipe holding plates, a bracket, and an inflator casing. The pipe is inserted through a pipe through hole in the base of the piston holder, through pipe through holes in the pipe holding plates, and through a spacer ring. The base of the piston holder, the spacer ring, and the pipe holding plates are clamped together between first and second flanges of the pipe. The inflator casing is fitted around the outer periphery of a rear end portions of the pipe and has an inward flange that is clamped and fixed between the first and second flanges of the pipe. Second and third flanges are formed by deforming portions of the pipe to have a larger diameter.