65results about How to "Prevent excessive evaporation" patented technology

The invention discloses a sweet potato cultivation method in hills and mountains, comprising the following steps of: A, selecting variety; B, raising seedlings: the seeding time is in March, the seeded potatoes are oblique in rows with head up and tail down, plant ash is covered after seeding, fine soil is covered, dual gold herbicide and glyphosate are sprayed on the ridges, and mulching film is coated; C, planting: considering that the blocks in hills and mountains have different sizes, micro-ridge single-row planting is adopted, the planting time of spring potato is in April, the planting time of summer potato is in May, the head and the middle of seedlings are cut, oblique planting is adopted, soil is covered, and moisture supply is maintained after planting; D, applying fertilizer: sweet potato is potassium-liking crop and the applied fertilizer is mainly organic fertilizer; and E, intertilling, weeding and earthing up: intertilling has the effect on breathing and is performed after planting, the depth becomes shallow, and weeding and earthing up are combined with intertilling. The method is easy and simple to operate, adopts micro-ridge single-row planting, efficiently uses the soil, causes the seedbed to be insulated, prompts the potato tubers to sprout quickly and abundantly, simultaneously can inhibit occurrence of black spot, and increases the yield by 20-30%.

The invention provides an automatic instrument for microorganism high-flux culture and large concentration range real-time detection. According to the automatic instrument, a transmission light path and a back scattering light path are combined together and share one light source (a light emitting diodes) a light signal receiver (a photodiode) of the transmission light path is arranged in a direction directly facing the light source; a light signal receiver (another photodiode) of the back scattering light path is arranged on a side same as the light source. When in detection, light is emitted from the light source, the two signal receivers receive light intensity signals (transmission light and back scattering light) simultaneously, the relationship between the light signals of the two signal receivers is compared, an appropriate detection light path is selected to measure the concentration of bacterium suspension, and thus the growth situation of microorganism culture can be accurately obtained. Due to adoption of the transmission light path and the back scattering light path of the concentration detection device, a double-detector composite light path can be constructed, defects of a single detection method is avoided, and the automatic instrument is particularly applicable to concentration detection on a test tube container in high-flux culture. Due to adoption of high-flux liquid stirring and a sample bottle tray transmission device in the automatic instrument, and the synergism of a brushless motor and a stepper motor, stirring and concentration detection on a liquid culture medium are organically combined, full-automatic operation is achieved, and multiple defects of a conventional method are avoided.

The calibration tool is provided for use with a detector, such as a detector for detecting trace amounts of one or more substances of interest. The calibration tool includes a body with at least one reservoir for retaining the calibration solution therein. A nib projects from the body and communicates with the reservoir. The nib can be wiped across a detection surface and the detection surface then may be presented to a detector. The detector then can be calibrated for the particular substance of interest in the calibration solution. The calibration tool may include plural reservoirs isolated from one another and plural nibs for applying the calibration solution to a detection surface.

The calibration tool is provided for use with a detector, such as a detector for detecting trace amounts of one or more substances of interest. The calibration tool includes a body with at least one reservoir for retaining the calibration solution therein. A nib projects from the body and communicates with the reservoir. The nib can be wiped across a detection surface and the detection surface then may be presented to a detector. The detector then can be calibrated for the particular substance of interest in the calibration solution. The calibration tool may include plural reservoirs isolated from one another and plural nibs for applying the calibration solution to a detection surface.

The invention discloses an intelligent telescopic water storage tank with high rainwater collecting efficiency and a good filtering effect. The intelligent telescopic water storage tank comprises a water tank body and a telescopic box sleeved with the water tank body, a pressure sensor is arranged in the water tank body, an electric push rod and a controller are arranged on the outer wall of the water tank body, and the signal output end of the pressure sensor is connected with the signal input end of the controller. The signal output end of the controller is connected with the signal input end of the electric push rod, the free end of the electric push rod is connected with the upper portion of the telescopic box, the top face of the telescopic box is a concave face, the top face in the telescopic box is communicated with a plurality of filters, and each filter comprises a U-shaped primary filter element and a U-shaped secondary filter element which are communicated. A sealing bar is arranged between the water tank body and the telescopic box. The intelligent telescopic water storage tank has the advantages of being simple in structure, convenient to use and transport, capable of purifying water and preventing excessive evaporation of stored water and variable in volume and facilitating rainwater collection.

The invention discloses an intelligent local loosing and rotating and even straw covering corn planter, and belongs to the technical field of agricultural mechanical devices. The corn planter comprises a vehicle body, a straw collecting mechanism, a local loosening and rotating mechanism, a sowing and fertilizer applying mechanism, a soil covering mechanism, a straw scattering mechanism and a compacting mechanism. The straw collecting mechanism comprises a collecting and smashing assembly and a pressure detecting assembly. The pressure detecting assembly is installed on the collecting and smashing assembly. The sowing and fertilizer applying mechanism comprises a fertilizer applying assembly, a sowing assembly and a plurality of grating sensors. A plurality of cameras are arranged at the lower end of the soil covering mechanism. A hydraulic system is arranged on the vehicle body. A cab is arranged at the front end of the vehicle body. A controller and a displayer are arranged in the cab. The vehicle body can also be an existing tractor. The intelligence of the corn planter is improved, the straw collecting mechanism and the sowing and fertilizer applying mechanism can be automatically monitored, the working state of the corn planter can be monitored in time, the corn planter is prevented from being damaged, the straw return-to-field effect is better, and the growth of corn is facilitated.

The invention discloses a solution type constant-temperature dehumidifier comprising two groups of dehumidifiers, a dew point indirect evaporation cooler, a direct evaporator and a refrigerating system, wherein the two groups of the dehumidifiers are connected with an input end of the dew point indirect evaporation cooler; the dew point indirect evaporation cooler is directly connected with an input end of the direct evaporator; the direct evaporator is further connected with each of two groups of the dehumidifiers; and the dew point indirect evaporation cooler is further connected with the refrigerating system. According to the solution type constant-temperature dehumidifier, outdoor low-temperature air is used as a cold source and is subjected to heat exchange with return air after the dehumidification treatment; the power consumption amount of equipment is greatly reduced and the resource of the cold source is abundant; and waste heat of the refrigerating system is used for regenerating dehumidification solution, so that energy saving and environmental protection are realized. According to a control method disclosed by the invention, a dew point indirect evaporation cooling technology is adopted to further reduce the temperature of the sucked outdoor low-temperature air; and the direct evaporator is used for recycling low-temperature heat of the sucked outdoor low-temperature air; and a hot gas bypass technology is used for preventing the dehumidification solution from being excessively evaporated.

The invention discloses an acidic gas reactor. The reactor is divided into three sections from top to bottom. An upper section is a liquid phase storage tank; a middle section is a straight-tube reaction tube and successively comprises, from top to bottom, a feed segment, a contraction segment, a throat pipe segment, an expansion segment and a discharge segment; the lower section is a liquid seal drum with an emptying opening at the lower end, and the liquid seal drum comprises an inner liquid seal drum and an outer liquid seal drum; the upper part of the feed segment and the liquid phase storage tank form a sleeve connection structure and the lower part of the feed segment and the liquid seal drum form a sleeve connection structure; the liquid phase storage tank is provided with a gas phase inlet, the position of the gas phase inlet is higher than an inlet at the upper end of the feed segment, and the sidewall of the liquid phase storage tank is provided with a circulation solution inlet; the tube wall of the straight-tube reaction tube is provided with an absorption liquid inlet which is located at the upper part of a throat pipe; and the inner liquid seal drum and the outer liquid seal drum are in a sleeve connection structure, the inner liquid seal drum is located at the lower part of the discharge segment, and the outer wall of the outer liquid seal drum is provided with a gas phase outlet and a liquid phase outlet. Compared with conventional reactors, the reactor provided by the invention has the advantages of high reaction efficiency, small equipment scale, uneasy obstruction and applicability to absorption reaction of acidic gas and alkali lye.

The invention discloses a road construction dust falling device structurally comprises a power mechanism, a water pipe assembly, a fixed supporting ring, an air duct, a hydraulic cylinder, a rotary cloud platform, a water tank, universal wheels and a machine body; the universal wheels are arranged at four corners of the bottom of a machine body correspondingly; the water tank is arranged in the machine body; compared with the prior art, the road construction dust falling device has the beneficial effects that the power mechanism, the water pipe assembly, the fixed supporting ring, the air duct, the hydraulic cylinder, the rotary cloud platform, the water tank and other components are combined, an operator can adjust the spraying height according to the requirement of the dust falling spaceposition; the road construction dust falling device can adapt to different spraying distances, water can conduct circular spraying movement according to requirements, angle adjustment does not need to be conducted manually, the spraying area is large, the spraying space is large, the dust falling time is short, meanwhile, the sprayed water can be cooled, water mist evaporation is prevented, and the dust falling efficiency can be improved.

The present invention relates to an automatic water supply apparatus having function of flowerpot humidification. More specifically, the apparatus comprising: a water reservoir (10) having water stored therein; a hygroscopic water-reservoir brick (20) placed in the water reservoir (10) such that a portion thereof is submerged in the water of the water reservoir (10); and a hygroscopic disc (30) inserted into a water outlet (3) formed on the lower portion of a flowerpot (2) so as to slightly protrude downward from the water outlet (3), wherein the flowerpot is seated on the hygroscopic water-reservoir brick (20) so that the hygroscopic disc (30) of the flowerpot makes contact with the hygroscopic brick (20) and the water is automatically supplied to the flowerpot through water infiltration caused by osmotic pressure, thereby providing convenience in use and achieving eco-friendly humidification.

The invention discloses an intelligent retractable water tank collecting rainwater conveniently and having a front end filtering function. The intelligent retractable water tank comprises a water tank body and a retractable tank body connected into the water tank body in a sleeved mode. A pressure sensor is arranged in the water tank body, and a power-driven push rod and a controller are arranged on the outer wall of the water tank body. The signal output end of the pressure sensor is connected with the signal input end of the controller. The signal output end of the controller is connected with the signal input end of the power-driven push rod. The free end of the power-driven push rod is connected with the upper portion of the retractable tank body. The top face of the retractable tank body is a concave face, and the inner top face of the retractable tank body communicates with a filter. The filter comprises a first-level filter element and a second-level filter element communicating with the first-level filter element. A spring is arranged on the bottom of the water tank body, and the free end of the spring is connected with a pressure plate. The pressure sensor is arranged on the bottom of the water tank body. The intelligent retractable water tank has the advantages of being simple in structure, convenient to transport, capable of purifying water and preventing excessive evaporation of stored water and variable in size.

The invention provides a method and apparatus for producing solid sodium bicarbonate by using acidic gas. The process employs sodium carbonate solution as an absorption liquid, sodium hydroxide solution as a washing liquid and sodium sulfhydrate as a protective solution, and comprises four sections of absorption reaction, solid-liquid separation, punching washing and secondary solid-liquid separation, so as to achieve exhaust emissions on standard, and produce solid sodium bicarbonate product and sodium sulfhydrate solution product in line with national standards for quality of products. The apparatus comprises a liquid film absorption reactor, a solid-liquid separator, a punching scrubber, a process pipeline and a pump. The acidic gas treatment method and apparatus achieve dual goals of acidic gas purification and contaminant recycling.

The invention provides a novel acidic gas treating process and apparatus. The acidic gas treating process employs a gas-liquid two-phase countercurrent absorption reaction and uses a NaOH solution as an absorption liquid to treat acidic gas so as to produce NaHS. According to the process, a primary liquid reaction product and a secondary liquid reaction product are cyclically used, the secondary liquid reaction product is used a tertiary reaction absorption liquid, and an MDEA solution is used as a fourth-stage reaction absorption liquid; thus, the purpose of replacement of CO2 with H2S is achieved, the generation amounts of Na2CO3 and NaHCO3 in a liquid phase product are reduced, precipitation of crystals is prevented, and long cycle operation of the apparatus is guaranteed. The acidic gas treating process provided by the invention is simple and can achieve the dual objectives of purification of acidic gas and reclamation of pollutants.

The invention provides a method and apparatus for producing sodium bicarbonate by using acidic gas. The process employs sodium carbonate solution as an absorption liquid, sodium hydroxide solution as a washing liquid and sodium sulfhydrate as a protective solution, and comprises six sections of absorption reaction, solid-liquid separation, washing, an air-slake pneumatic conveying gas device and bagging, so as to achieve exhaust emissions on standard, and produce sodium bicarbonate chemical product in line with national standards for quality of products. The apparatus comprises a liquid film absorption reactor, a solid-liquid separator, a scrubber, an air-slake pneumatic conveying gas device, a cyclone separator, a process pipeline and a pump. The acidic gas treatment method and apparatus achieve dual goals of acidic gas purification and contaminant recycling.

The invention discloses a tea leaf vertical lifting and moisture regain integration apparatus. The apparatus comprises a vertical lifting device and an S-shaped moisture regain device, the vertical lifting device is formed by a body, a double-roller chain transmission mechanism, hoppers and a first motor, the body has a hollow Z-shaped structure, the double-roller chain transmission mechanism is formed by a pair of driving sprockets, a pair of driven sprockets, a plurality of pairs of traction sprockets and two roller chains, the pair of driving sprockets are in transmission connection with the first motor through driving shafts, the hoppers are equidistantly connected between the two roller chains, a discharge opening is arranged below the tail end of the body in an upper horizontal segment, the S-shaped moisture regain device is arranged below the discharge opening, and the S-shaped moisture regain device is formed by a frame, a plurality of transmission mechanisms and a plurality of second motors. The apparatus integrates transportation and moisture regain, has a compact structure, greatly improves the automation degree of a tea leaf production apparatus, reduces the labor intensity, and is helpful for improving the production efficiency of tea leaves.

The invention discloses an Ag-Li-Sn silver lithium electrical contact alloy with high thermal conductivity and damping and a processing technology thereof. By weight percentage, the chemical composition of the alloy is: Li:0.5‑3.0wt.%, Sn:1.0‑1.5wt.%, Zn:2.0‑4.0wt.%, Ba:0.5‑1.5wt.%, Sr:0.5‑ 1.2wt.%, Pd: 0.2‑0.4wt.%, Zr: 0.2‑0.3wt.%, Th: 0.1‑0.2wt.%, Ce: 0.5‑0.8wt.%, B: 0.5‑1.0wt.%, The balance is silver. Compared with silver alloys used in traditional electrical contact materials, this material has excellent mechanical properties, high electrical conductivity and high damping coefficient.

A Cu-Li-Ge copper-lithium alloy replacing beryllium bronze, the chemical composition of the alloy is: Li:0.2-1.6wt.%, Ge:2.0-3.0wt.%, Sr:2.0-3.0wt. .%, Ce: 0.2‑0.4wt.%, Ho: 0.2‑0.3wt.%, Pr: 0.2‑0.4wt.%, V: 0.6‑0.8wt.%, S: 0.8‑2.6wt.%, balance for copper. The material has excellent mechanical properties and electrical conductivity. Elastic modulus: 125‑138GPa; Yield strength: 950‑1080MPa; Tensile strength: 1100‑1200MPa; Elongation: 4‑10%; Conductivity (%IACS): 50‑80, while traditional beryllium copper is 18‑25 .

The invention discloses a high-damping Ag-Li-Sn silver-lithium alloy with electrical conductivity close to that of pure silver. In terms of weight percentage, the chemical composition of the alloy is: Li:0.5‑3.4wt.%, Sn:2.6‑3.8wt.%, Be:0.2‑0.5wt.%, Hf:0.1‑0.3wt.%, Sr:0.5‑ 0.8wt.%, Ge: 0.2‑0.4wt.%, In: 0.1‑0.3wt.%, Ta: 0.1‑0.3wt.%, Gd: 0.2‑0.3wt.%, B: 0.2‑0.4wt.%, The balance is silver. Compared with traditional electrical contact silver alloys, the material has excellent mechanical properties, high electrical conductivity and excellent damping properties.

The invention provides a method and device for producing sodium bicarbonate from acid gas and purifying hydrogen sulfide. The process method uses sodium carbonate solution as the absorption liquid and sodium sulfide solution as the protection liquid, and undergoes absorption reaction, heating, flash evaporation and The four-stage process of solid-liquid separation and gas cooling and collection realizes the discharge of tail gas up to the standard, and produces chemical products that meet the national product quality standards. The process device is composed of a liquid film absorption reactor, a heat exchanger, a flash separation tank and a cooler. The acid gas treatment method and device of the present invention use sodium carbonate and acid gas as raw materials to produce solid sodium bicarbonate and high-purity hydrogen sulfide gas, and realize the dual goals of acid gas purification and pollutant recycling.

The invention provides a thermodynamic cooling power tower. The thermodynamic cooling power tower is provided with a thermodynamic draught fan and a vertical fan blade power generation system, whereinthe thermodynamic draught fan is composed of a wind cylinder, and a return water inlet, a heating medium distribution tube, a heat exchange core tube, a heating medium collection system and a water outlet, which are sequentially arranged in the wind cylinder along the flowing direction of a heating medium, the heating medium collection system is composed of a liquid collection tube, a collectionpump, a pump outlet pipeline and the like, and a heat compensation system can possibly be arranged between the liquid collection tube and the collection pump. Closed circulation of the thermodynamic cooling power tower can reduce power consumption of a circulating cooling water conveying device, converts potential waste heat into electric energy, and applies the electric energy in a production line of an enterprise of the applicant, and simultaneously water vapor is prevented from excessively evaporating, and after popularization and application, the thermodynamic cooling power tower is expected to save a large amount of water source every year, and greatly reduces power consumption.

The invention discloses an acidic gas reactor. The reactor is divided into three sections from top to bottom. An upper section is a liquid phase storage tank; a middle section is a straight-tube reaction tube and successively comprises, from top to bottom, a feed segment, a contraction segment, a throat pipe segment, an expansion segment and a discharge segment; the lower section is a liquid seal drum with an emptying opening at the lower end, and the liquid seal drum comprises an inner liquid seal drum and an outer liquid seal drum; the upper part of the feed segment and the liquid phase storage tank form a sleeve connection structure and the lower part of the feed segment and the liquid seal drum form a sleeve connection structure; the liquid phase storage tank is provided with a gas phase inlet, the position of the gas phase inlet is higher than an inlet at the upper end of the feed segment, and the sidewall of the liquid phase storage tank is provided with a circulation solution inlet; the tube wall of the straight-tube reaction tube is provided with an absorption liquid inlet which is located at the upper part of a throat pipe; and the inner liquid seal drum and the outer liquid seal drum are in a sleeve connection structure, the inner liquid seal drum is located at the lower part of the discharge segment, and the outer wall of the outer liquid seal drum is provided with a gas phase outlet and a liquid phase outlet. Compared with conventional reactors, the reactor provided by the invention has the advantages of high reaction efficiency, small equipment scale, uneasy obstruction and applicability to absorption reaction of acidic gas and alkali lye.

The invention provides a multi-stage countercurrent absorption process and system for acidic gas. The absorption process employs a gas-liquid two-phase countercurrent absorption reaction and uses a NaOH solution as an absorption liquid to treat acidic gas so as to produce NaHS. According to the process, a crystallizer and a separator are arranged in a primary reaction and a secondary reaction, and heat is taken out of a reactor; and through filling of the NaOH solution in stages, peak clipping of reaction heat is realized, and local crystallization caused by generation of heat spots is prevented. A combination of a Venturi reactor and a rotating packed bed reactor is used as a reaction apparatus which is flexible to operate and has high mass transfer efficiency. The acidic gas absorption process provided by the invention is simple and can achieve the dual objectives of purification of acidic gas and reclamation of pollutants; and the acidic gas absorption system has the advantages of small scale, low energy consumption and low proneness to obstruction.

The invention discloses an automatic planting system for nursery stock seeds. The automatic planting system comprises a mechanical arm capable of horizontally moving, a storage device is fixedly mounted at the tail end of the mechanical arm, and a planting unit is arranged below the storage device; a first discharging unit, a second discharging unit and a third discharging unit are arranged at the lower end of the storage device side by side, and the first discharging unit, the second discharging unit and the third discharging unit can feed seeds, granular fertilizer and water to the planting unit. The system effectively prevents the seeds wetted by water from being excessively evaporated, and the seeds are buried with a loose soil-fertilizer mixture, so that the soil fertility is enhanced, and seedling burning is avoided.

The invention discloses a palladium-magnesium alloy for a magnesium-containing high-conductivity and high-strength electrical contact material. In terms of weight percentage, the chemical composition of the alloy is: Mg: 1.5‑3.0wt.%, Hf: 0.2‑0.8wt.%, Re: 0.2‑1.4wt.%, Sn: 1.2‑1.4wt.%, Al: 1.0‑ 1.5wt.%, Co: 0.4‑0.5wt.%, Ag: 0.2‑0.8wt.%, Si: 0.2‑0.4wt.%, Ge: 0.1‑0.2wt.%, B: 0.2‑0.5wt.%, The balance is palladium. Compared with the traditional electrical contact palladium alloy, the material has excellent mechanical properties and high electrical conductivity.

A sheath flow device for an evaporation light scattering detector comprises an evaporation pipe fastener (110), an evaporation pipe heat insulating component (120), a sheath flow nozzle blocking plate (130), a sheath flow nozzle (140), a sheath flow sleeve (150), a sheath flow outlet piece (170) and a stainless steel spray needle (160). The evaporation pipe fastener, the evaporation pipe heat insulating component, the sheath flow nozzle blocking plate, the sheath flow nozzle, the sheath flow sleeve and the sheath flow outlet piece are concentrically connected orderly from front to back, and all provided with concentric inner holes. Said device is applicable to ELSD sheath flow devices ranging from nanoliter-scale to microliter-scale. On one hand, material particles entering a testing pool are enveloped and aggregated so that the formation of eddy and turbulence can be reduced, the chromatographic peak shape of a sample can be improved and the stability of sample detection can be enhanced; on the other hand, the testing pool can be cleaned so that baseline noise can be reduced and the signal to noise ratio can be increased.

The invention belongs to the field of storage battery trailers and particularly relates to a small storage battery trailer for a greenhouse. The small storage battery trailer comprises a trailer control case, a trailer storage battery, a steering rod, a trailer seat, a steering wheel, a control panel, a back baffle, a sunshade, a front baffle, a rear baffle, trailer wheels, a fan water tank control machine, a water tank, a fan, a transmitter, an organ pipe, a connecting window A, a trailer tractor A, a trailer hand car, hand car wheels, a trailer tractor B, a conveying tank, a ceiling, a roller shutter box, a heat preservation roller shutter, a roller shutter shaft, a bearing A, a bearing B, a roller shutter controller, a connecting window B, a water pan, a top rack, an upper layer storage rack, a middle layer storage rack, a lower layer storage rack, a bottom rack, protection side racks, a trailer water pipe, a conveying tank water diversion pipe, a sprinkling water pipe A, a sprinkling water pipe B, a sprinkling water pipe C, a sprinkling water pipe D, a conveying water pipe, sprayers A, sprayers B, sprayers C and sprayers D.

The invention discloses an ultrahigh-density solid fermentation method of of high-temperature-resistant bacillus. The ultrahigh-density solid fermentation method comprises the following steps of (1) strain activation: culturing high-temperature-resistant bacillus in an LB solid culture medium to obtain an activated strain; (2) preparing a liquid seed solution, namely inoculating the activated strain obtained in the step (1) into a liquid LB culture medium for culturing; and (3) solid fermentation: inoculating the liquid seed solution prepared in the step (2) into a solid fermentation culture medium, and fermenting to obtain the high-density bacillus, wherein the fermentation culture medium comprises agar. According to the method, agar is added into an optimized solid culture medium as a water-retaining agent, so that ultrahigh-density solid fermentation of the high-temperature-resistant bacillus is realized, and the colony count of a final microbial agent product greatly exceeds the microbial agent standard and can reach 10 billion CFU / g.

The invention provides a comprehensive utilization process and system for acidic gas. The comprehensive utilization process employs a NaOH solution as an absorption liquid to treat acidic gases so as to produce NaHS. According to the process, a liquid reaction product obtained in each stage is cyclically used; and through filling of the NaOH solution in stages and adjusting of reaction intensity in each stage, peak clipping of reaction heat is realized, and local crystallization caused by generation of heat spots is prevented. A combination of a Venturi reactor and a rotating packed bed reactor is used as a reaction apparatus which is flexible to operate and has high mass transfer efficiency. The acidic gas treatment process provided by the invention is simple and can achieve the dual objectives of purification of acidic gas and reclamation of pollutants.