787 results about "Drying Agents" patented technology

The invention belongs to the technical field of dry filters, and particularly relates to an easy-to-clean dry filter for refrigeration equipment, the easy-to-clean dry filter comprises a shell, a liquid inlet and a liquid outlet, the liquid inlet and the liquid outlet are mounted on two sides of the shell, two convex plates are mounted in the shell, mesh plates I are slidably mounted on the two convex plates respectively, spacer sleeves are mounted on the mesh plates I, and the spacer sleeves are mounted on the mesh plates II; the area between the two protruding plates is divided into a transmission cavity and a drying cavity through the spacer sleeve, and a speed reduction tooth set is installed in the transmission cavity and connected with the first mesh plate. After the air cylinder is started, under the condition that a sliding rod on the second mesh plate is in sliding fit with a chute, the first mesh plate drives the second mesh plate to rotate, so that through holes in the second mesh plate gradually coincide with through holes in the first mesh plate, the flow speed of a refrigerant passing through the second mesh plate and the first mesh plate is increased, and meanwhile, under the action of a speed reduction tooth set, the refrigerant is prevented from falling off. And the space between the drying cavities is gradually increased, so that the refrigerant passes through each part of the drying agent, and small pulverized particles of the drying agent are brought out.

The invention relates to the technical field of transformers, in particular to a power electronic transformer with a shielding structure, which mainly comprises a transformer body, a radiator is fixedly mounted on the side surface of the transformer body, a cooling fan is fixedly mounted at the end part of the radiator, and a weak current box is fixedly mounted at the end part of the transformer body. Double oil mist separation is achieved through the deoiler, one is that spiral ascending airflow is formed through guiding of the jet pipe, oil mist in gas is removed according to the centrifugal demisting principle, and the other is that residual oil mist in the gas is secondarily intercepted through the filter element pipe, so that the oil mist in respiratory airflow can be effectively removed, the oil mist interception efficiency is remarkably improved, and the oil mist separation efficiency is greatly improved. Meanwhile, the elastic membrane of the buffer can absorb sudden pressure change of the oil conservator through elastic deformation, so that the pressure fluctuation amplitude is reduced when the load changes suddenly, pulverization or structural damage of the drying agent caused by strong airflow impact is avoided, it is ensured that the moisture absorption drying agent is always in a clean and stable working environment, and the efficient dehumidification capacity is maintained.

The invention belongs to the technical field of low-voltage switch cabinets, and particularly relates to a low-voltage switch cabinet with a good on-off effect, which comprises a cabinet body, an exhaust cavity formed at the bottom of the cabinet body, an air exhaust box fixedly mounted at the top of the cabinet body, a filter screen plate mounted on the side wall of the air exhaust box, a plurality of drawers slidably connected in the cabinet body, and an auxiliary heat dissipation box fixedly connected to the back of the cabinet body. When a second motor drives a rotating shaft to rotate to adjust the position of a movable seat, the rotating shaft rotates to drive a linkage shaft to rotate through a belt ring and a belt pulley, the linkage shaft is meshed with one transmission shaft through a bevel gear, and therefore when the rotating shaft rotates, the annular dehumidification net can be driven to rotate through the transmission shaft; and the position of a drying agent arranged in the annular dehumidification net is adjusted, so that the dehumidification effect is improved, and the problems that air with relatively high humidity enters the cabinet body, easily corrodes electrical components and seriously affects the on-off effect of the electrical components are solved as much as possible.

The invention relates to the technical field of refrigeration cycle, and discloses a dry filter of an air conditioner refrigeration cycle system, which comprises a shell, a liquid inlet at the front end of the shell and a liquid outlet at the tail end of the shell, and a front filter plate and a rear filter plate are respectively mounted in the hollow annular table in a sliding manner. The space of the front drying cavity is increased, so that when small particles generated by pulverization of a drying agent are led to the rear drying cavity, the drying agent in the rear drying cavity is kept in a compact state at the moment, and it is ensured that the rear drying cavity has the capacity of adsorbing moisture in a refrigerant; when the space of the rear drying cavity is increased, small particles generated by pulverization of the drying agent are discharged out of the drying cavity, at the moment, the drying agent in the front drying cavity is kept in a compact state, and it is ensured that the front drying cavity has the capacity of adsorbing moisture in the refrigerant. Therefore, small particles generated by pulverization of the drying agent can be effectively cleaned, and moisture in the refrigerant can be reliably removed.

The invention discloses a special-shaped plate laser coding packaging assembly line and a process thereof. Comprising reagent plate laser code printing equipment used for laser code printing, a reagent plate conveying device used for carrying reagent plates at a fixed distance, a suction pipe feeding and carrying device used for horizontally carrying suction pipes at a fixed distance, a packaging bag feeding device used for providing packaging bags and opening the packaging bags, and a main line conveying device used for conveying the packaging bags in an anti-jumping mode. The drying agent cutting and feeding device is used for rotationally carrying drying agents, the transfer bagging and butt joint device is used for unified bagging, the heat sealing device is used for secondary heat sealing of packaging bags, and the discharging and carrying device is used for automatic classification. By means of the mode, laser coding, reagent plate feeding, suction pipe feeding, drying agent feeding, packaging bag feeding, bag opening, bagging, heat sealing and classified discharging can be integrated, the functions are complete, the automation degree is high, and the applicability is wide.

The multifunctional partitioned temperature control medical storage cabinet comprises a multifunctional medical temperature control cabinet, and a drying mechanism and a heat dissipation auxiliary mechanism are arranged in the multifunctional medical temperature control cabinet; according to the multifunctional partitioned temperature control medical storage cabinet, by arranging the drying mechanism, the heat dissipation auxiliary mechanism and the cleaning mechanism, the multiple improvement effect on the environment in the cabinet is achieved, firstly, a motor drives a lead screw to drive a support to move, a cleaning wiping plate can be periodically attached to the back face of the partitioned storage cabinet, condensate water formed due to temperature difference is cleaned and scraped, and the cleaning effect is improved; according to the drying device, local moisture accumulation caused by long-term adhesion of water drops is avoided, the mildew risk is reduced from the source, meanwhile, condensate water is extruded to flow into the water storage tank and is discharged through the drainage pipe, the internal humidity control capacity is further improved, and then the drying box is heated by the heating plate, so that drying agent particles continuously keep active; and the transmission plate drives the transmission ring and the transmission blades to rotate to stir the drying agent particles, so that moisture absorption is more uniform and efficient.

The invention provides colored varnish, a preparation method thereof and a preparation method of a colored workpiece. The colored varnish comprises a component A and a component B, based on 100 parts of the total mass of the component A, the component A comprises the following components: 30-35 parts of first resin, 13-20 parts of second resin, 2-3 parts of nanoscale black pigment, 1-2 parts of a dispersing aid, 3-4 parts of a leveling aid, 2-3 parts of an ultraviolet light absorber, 2-3 parts of a drying aid and 30-47 parts of a solvent, the first resin comprises acrylic resin, and the second resin comprises polyester resin; on the basis that the total mass of the component B is 100 parts, the component B comprises 60-85 parts of aliphatic isocyanate and 15-40 parts of an anhydrous diluent; the mass ratio of the component A to the component B is (2-4): 1. The colored varnish not only has the same color endowing function as colored paint, but also has good leveling property, glossiness, color saturation, tinting strength and weather resistance.

To provide a water-based ink composition for a writing instrument capable of enhancing drying resistance of a pen tip without reducing drying properties of written lines and to provide a writing instrument incorporating the water-based ink composition.SOLUTION: There is provided a water-based ink composition for a writing instrument which comprises at least a colorant, a water-soluble solvent, a film-forming non-drying agent having a solubility in water of less than 40 g / 100 mL and water, wherein the mole fraction of the film-forming non-drying agent to the water-soluble components in the ink is 0.25 or more. Further, there is provided a writing instrument incorporating the water-based ink composition.SELECTED DRAWING: Figure 1

The invention discloses a liquid storage device for air conditioning equipment, and belongs to the field of air conditioner liquid storage devices. The liquid storage device for the air conditioning equipment comprises a tank body and an inlet pipe arranged at the top of the tank body, a gas-liquid separation assembly, a drying assembly and a filtering assembly are sequentially arranged in the tank body and located below the inlet pipe, and the drying assembly and the filtering assembly are detachably and integrally arranged at the bottom of the tank body; the gas-liquid separation assembly receives a refrigerant from the inlet pipe and enables the refrigerant to diffuse and splash, the drying assembly comprises a drying chamber located below the gas-liquid separation assembly, the filtering assembly comprises a filtering chamber located below the drying chamber, and a communicating pipe is arranged between the drying chamber and the filtering chamber, so that the liquid refrigerant can sequentially flow through the drying chamber and the filtering chamber. The drying assembly and the filtering assembly are detachably installed at the bottom of the tank body in an integrated modular mode, a drying agent and a filter screen can be independently replaced or maintained without replacing the whole liquid storage device, operation is easy and convenient, and the later maintenance cost is reduced.

The invention discloses a built-in heating type air dryer which comprises a heat preservation shell, the heat preservation shell is filled with a drying agent, an air inlet and an air outlet are formed in the heat preservation shell, and a heating part wrapping the drying agent is installed in the heat preservation shell. The heating component comprises a heat conduction sleeve and a heating element arranged on the outer side of the heat conduction sleeve, a conductive bayonet socket is arranged on the outer side of the heat preservation shell, the interior of the conductive bayonet socket is electrically connected with the heating element, and the drying agent is completely wrapped by the heat conduction sleeve and the heating element to form an annular heating surface. Heat can be evenly transmitted to all parts of the drying agent through the heat conduction sleeve, local overheating or heating blind areas are avoided, the contact area of the drying agent and the heating face is maximized through wrapping type heating, the saturation risk is reduced, and the service life of the dryer is prolonged.

The invention relates to the technical field of oil-immersed transformers, in particular to an efficient heat dissipation oil-immersed transformer which comprises a transformer body, an oil conservator and a moisture absorber, the oil conservator and the moisture absorber are fixedly mounted at one end of the top of the transformer body, a first pipeline is fixedly mounted in the oil conservator, and the top of the first pipeline is located at the top end in the oil conservator. A second pipeline fixedly sleeves the outer portion of the bottom end of the first pipeline, an oil receiving barrel is arranged in the second pipeline, strip-shaped limiting grooves are formed in the two ends of the interior of the second pipeline, clamping grooves communicate with the bottoms of one sides of the two strip-shaped limiting grooves, and a connecting mechanism and an anti-disengaging mechanism are arranged at the bottom end and the top end of the oil receiving barrel correspondingly. The moisture absorber has the beneficial effects that oil is collected through the oil receiving barrel, so that the oil can be prevented from entering the moisture absorber, a drying agent in the moisture absorber is prevented from being soaked by the oil and losing efficacy, the oil is also prevented from overflowing through the moisture absorber to pollute equipment, and normal use of the matched moisture absorber in transformer manufacturing is ensured.

The invention discloses a hollow glass thermoelectric integrated device for a photovoltaic curtain wall, and belongs to the technical field of photovoltaic equipment. The photovoltaic thermoelectric assembly is mounted in the outer frame; and the sealing sliding frame is connected to the interior of the outer frame in a sealed and sliding mode, a glass plate is installed in the sealing sliding frame in a sealed mode, a sealed hollow cavity is defined by the sealing sliding frame, the glass plate, the photovoltaic thermoelectric assembly and the outer frame, and a plurality of telescopic rod installation sleeve frames are fixedly connected to the interior of the outer frame. The micro electric telescopic rod and the sealing sliding frame are arranged to drive the hollow cavity to stretch out and draw back, the hollow cavity expands at high temperature, the heat insulation layer is formed while the volume is increased and the pressure is reduced, the influence of external high temperature on the efficiency of the silicon photocell is reduced, and the heat conduction is enhanced and the waste heat utilization rate is improved while the volume is shrunk at low temperature to prevent negative pressure; meanwhile, when the drying agent is regenerated, the hollow cavity is firstly driven to expand and depressurize, so that nitrogen in the drying box can be reduced.

The application belongs to the technical field of medical dressings and discloses a disinfecting and sterilizing device on a medical dressing production line, which comprises a conveyor, a plurality of groups of medical dressing bodies are connected to the top surface of the conveyor, a groove plate box is fixedly connected to the top outer wall of the conveyor, grooves are formed through the both ends of the bottom of the groove plate box, and a disinfecting and sterilizing part is arranged on the conveyor; the rubber pressing plate rotates to repeatedly contact and press the corrugated pipe below; when the corrugated pipe passively produces a negative pressure reciprocating movement, high-temperature steam passes through the multiple discharging holes and is sprayed from the multiple atomizing nozzles to form extremely fine high-temperature steam spraying; in the process of passive rotation of the rotating rod, the centrifugal force generated by rotation can make the spraying range of the atomizing nozzles larger, the wind wheel in the rotating process drives the drying agent to completely absorb the moisture in the high-temperature steam, and thus the medical dressing bodies on the conveyor after being subjected to the high-temperature steam are dried.

The invention discloses a filter unit, air supply equipment, an air suspension system and a vehicle. The filter unit comprises a shell, a drying agent and a pressure relief device, and an inlet and an outlet are formed in the shell; the drying agent is arranged in the shell; the pressure relief device is arranged on the shell, a pressure relief opening is formed in the pressure relief device, and when the pressure relief opening is opened, fluid at the outlet is suitable for flowing through the drying agent and being discharged to the external atmosphere through the pressure relief opening. Therefore, the filtering unit is small in part number, high in integration level, simple in structure and high in space utilization rate, the production cost of the filtering unit is reduced, the reliability of the filtering unit is improved, and the service life of the filtering unit is prolonged.

A drying device for an expansion tank in a battery cooling system can be implemented in various configurations. In some configurations, the drying device includes an air-permeable, bag-like housing containing a drying agent. In another configurations, the drying device includes a dimensionally stable drying body formed from a sintered, extruded, or sprayed drying agent.

The invention discloses a control cabinet for a silkworm breeding workshop intelligent control system, and relates to the field of control cabinets, the control cabinet comprises a control cabinet body, the control cabinet body is provided with a cabinet door, and the two sides of the control cabinet body are provided with heat dissipation filter plates; the control cabinet comprises a control cabinet body, and further comprises an anti-rust drying device, the anti-rust drying device is installed on the control cabinet body, and the anti-rust drying device is used for coating oil on the outer surface of the control cabinet body and drying air in the control cabinet body. It needs to be explained that in the embodiment of the invention, when the control cabinet body is used, the drying agent box is used for drying the control cabinet body, the drying agent box can be automatically switched, the lifting frame can drive the scraping frame to vertically ascend and descend, the outer surface of the control cabinet body is cleaned and lubricated, and safe use of the control cabinet body is guaranteed; in addition, a lifting frame moves downwards to push a driving block to move, so that a wiping brush frame cleans a heat dissipation filter plate, and the heat dissipation effect of the control cabinet body is guaranteed.

The utility model relates to the technical field of envelope bags, and discloses a packaging envelope bag which comprises an envelope bag body, the outer surface of the envelope bag body is sleeved with a buffer layer, a plurality of air bags are installed in the buffer layer, a waterproof layer is fixedly bonded to the outer surface of the buffer layer, and a label layer is fixedly connected to the outer surface of the waterproof layer. A contact layer is mounted on the inner wall of the envelope bag body. According to the envelope bag for packaging, the overall buffering performance can be improved by installing the buffering layer to be matched with the air bag, so that articles in the envelope bag body are conveniently protected, the anti-falling capacity is improved, the waterproof capacity of the envelope bag body can be improved by arranging the waterproof layer, and the service life of the envelope bag is prolonged. Articles in the envelope bag body can be prevented from being affected with damp through cooperation with the drying agent, the express waybill can be conveniently torn down by arranging the label layer, and the envelope bag body can be conveniently and repeatedly used.

The utility model relates to the related technical field of drying agent scrapers, and one embodiment of the utility model provides a scraper mechanism for a drying machine, the scraper mechanism comprises an outer frame and a drying roller, the drying roller is rotatably connected in the outer frame, a mounting frame is arranged in the outer frame, a scraper assembly is arranged on the mounting frame, and the scraper assembly is arranged on the mounting frame. The angle adjusting assembly is arranged between the mounting frame and the outer frame, the scraper assembly comprises a connecting cavity, the connecting cavity is formed in the mounting frame, a main scraper is connected into the connecting cavity in an inserted mode, and a first bolt is connected between the bottom of the mounting frame and the main scraper in a screwed mode. By means of the technical scheme, the technical problems that in the prior art, slurry cannot be scraped off on a roller in time, accumulation is formed, and along with increase of the accumulation thickness, the whole scraper is gradually and completely out of action are solved.

The invention discloses environment-friendly printing ink based on soybean oil base and high in drying speed and a preparation method, and relates to the technical field of environment-friendly printing materials.Nanosilicon dioxide is subjected to silane coupling agent surface modification, and the grafting rate is larger than or equal to 1.2 mmol / g; the pigment is treated by an aluminate coupling agent, and the oil absorption is reduced to be less than 35g / 100g; adding the modified soybean oil, the nano silicon dioxide and the polyethylene wax micro powder into a sand mill according to the proportion, grinding for 2 hours at 800rpm, and controlling the fineness to be less than or equal to 10 microns; adding a metal cobalt drying agent, a dispersing agent and a pigment, dispersing at a high speed for 30 minutes at the speed of 1500rpm, filtering and discharging. The production efficiency is improved, and the requirement for high-speed printing is met.

The invention belongs to the technical field of first-aid equipment, and discloses a household medical first-aid kit which comprises a kit body and a cover body, a connecting cylinder is fixedly connected to the upper edge of the kit body, the kit body and the cover body are hinged through the connecting cylinder, and the household medical first-aid kit further comprises a sealing box placed in the kit body; and the piston assembly is arranged in the connecting cylinder. According to the scheme, the cover body is rotated to be closed and drive the rod piece and the convex shaft to rotate, so that the convex shaft slides along the guide groove, at the moment, the convex shaft slides in the guide groove to enable the piston rod to move away from the pipeline assembly in the horizontal direction, and furthermore, the space of the communicating cavity is increased; and gas in the box body enters the communicating cavity through the first pipeline and the second pipeline, at the moment, the interior of the box body is in a negative pressure state, and the drying agent is matched to adsorb the humid gas in the box body, so that the situation that the medicine stored in the box body is affected by the humid gas and deteriorates can be avoided.

The utility model relates to the technical field of electric meter boxes, in particular to an outdoor electric meter box which comprises a box body, a supporting rod is fixedly connected to the top of the box body, a rain baffle is fixedly connected to the top end of the supporting rod, flow guide grooves are formed in the top of the rain baffle, and the flow guide grooves are sequentially arranged from front to back. The electric meter box further comprises a blocking mechanism and an absorbing mechanism, a first net plate is arranged on the inner side of the rainproof cover, so that insects or small animals cannot enter the box body from the heat dissipation opening, then a second net plate is arranged, the insects or small animals are prevented from entering the box body from the work box, foreign matter can be prevented from entering the electric meter box, and the service life of the electric meter box is prolonged. The electric power short circuit risk is reduced, the use effect of the electric meter box is improved, and in rainy days, moisture in air is absorbed through the drying agent in the drying box, so that the air is kept dry, moisture is prevented from entering the electric meter box, and the service life of the electric meter box is prolonged.

The utility model discloses a bus duct dustproof structure relates to bus duct technical field, and the bus duct main part is including: bus duct main part air inlet's outer wall is installed with the assembly plate, the outer wall of assembly plate is installed with the outer cover subassembly, the outer cover subassembly is including the frame body, the frame body both sides's outer edge all are established with a plurality of equidistance arrangement's air channel, a plurality of dustproof and moistureproof components are installed to the inside of frame body, the dustproof and moistureproof component is including the casing, the both ends of casing are integrally provided with the inclined channel, the both ends of inclined channel are linked together with the air channel, and the dustproof net frame is installed to the end of inclined channel, and the drying agent display box is installed to the intermediate position of casing inside, and the assembly groove is seted up to the intermediate position of casing, four sets of the clamping groove are seted up on the inner wall of assembly groove, and four sets of the clamping block are provided on the outer wall of drying agent display box rear end. The reliability problem of existing dustproof structure is solved.

The vertical connecting structure comprises a plate body, a protective frame is fixedly connected to one side of the plate body, a waterproof groove is formed in one side of the protective frame, placing frames are fixedly connected to the two sides of the inner wall of the protective frame, a plurality of ventilation openings are formed in the four sides of each placing frame, and the ventilation openings are communicated with the waterproof groove. A drying agent is arranged at the bottom of the inner wall of the placing frame, and the other side of the plate body is fixedly connected with a sealing ring. Through cooperative use of structures such as the protective frame, the waterproof groove, the placing frame, the air vent, the drying agent, the sealing ring, the insertion assembly, the clamping assembly and the bolts, waterproof work can be carried out on the splicing position after the two plate bodies are spliced; and external rainwater and moisture are prevented from permeating into the plate from the splicing seams to cause moisture in the plate, and corrosion of steel bars and cracking of concrete are prevented, so that the durability of the prefabricated concrete laminated plate is improved, and the service life of the whole building is prolonged.

The utility model relates to the field of firecracker production, in particular to a damp-proof storage device for firecracker production. Existing equipment is difficult to adsorb and dry air entering a goods shelf, so that the air containing high water vapor is directly contacted with firecrackers without being treated, and the damp-proof effect on the firecrackers is poor. A damp-proof storage device for firecracker production comprises a storage cabinet, and a cabinet door is rotationally connected to the storage cabinet. One movable bottom plate moves downwards, so that the used drying agent in the placing frame falls onto a guide plate frame; one movable bottom plate moves upwards to close one compartment of the placing frame, and the other movable bottom plate moves upwards to close one compartment of the placing frame, so that the drying agent in the storage bin can fall into the just closed compartment of the placing frame, the drying agent in the compartment of the placing frame can be automatically replaced, air blown out by the fan can pass through a new drying agent, and the air blown out by the fan is kept dry; therefore, the damp-proof effect of the firecracker is improved.

The utility model provides a sponge zirconium production passivation device, which relates to the field of non-ferrous metal sponge zirconium production smelting and comprises a box body, an air inlet pipe is fixedly mounted at one end of the box body, an air outlet pipe is fixedly mounted at the other end of the box body, and first drainage plates are fixedly mounted at the top of the inner wall of the box body at equal intervals; second drainage plates are fixedly installed at the bottom of the inner wall of the box body at equal intervals, and a closing plate is installed on one side of the box body through bolts. According to the drying box, air enters the box body through the air inlet pipe and is exhausted through the air outlet pipe fixedly installed at the other end of the box body after being dried, and the first drainage plates and the second drainage plates installed in the box body are alternately installed one by one, so that the air entering the box body can make more sufficient contact with a drying agent, and the air drying effect is better; and the sealing plate is taken down, the electric telescopic rod is started to push the drying agent out of the push plate, and then a new drying agent is added, so that the drying agent is more convenient to replace.

The utility model discloses a lubricating oil purification device, which relates to the technical field of lubricating oil purification and comprises a plurality of filter plates, a plurality of magnetic plates and a shell. The plurality of filter plates and the plurality of magnetic plates are alternately arranged to form a cylindrical structure; the shell wraps the barrel-shaped structure and supports the two ends of the barrel-shaped structure, a cavity is formed between the outer side of the barrel-shaped structure and the shell, and a drying agent is filled in the cavity; the shell is connected with an oil inlet and an oil outlet, the oil outlet is communicated with the cavity where the drying agent is located, and the oil inlet is communicated with the inner side of the cylindrical structure; through the cylindrical structure formed by the magnetic plate and the filter plate, impurities in lubricating oil can be adsorbed and filtered; moisture in the lubricating oil is adsorbed through the drying agent; the device is compact in structure and can be arranged in a lubricating oil conveying pipeline to directly purify lubricating oil.

The invention relates to the technical field of heat recovery, in particular to a heat energy recovery management method, device, equipment and medium for a compression heat regeneration drying machine. The method comprises the steps that when high-temperature and high-humidity compressed air generated by an air compressor passes through a switching valve, an air guiding instruction is triggered; high-temperature and high-humidity compressed air is respectively guided to a first drying tower in an adsorption mode and a second drying tower in a regeneration mode; in the regeneration process of the second drying tower, preheating desorption is conducted on the drying agent in the second drying tower through high-temperature compressed air flowing through the first drying tower, and high-temperature regenerated gas is generated; the high-temperature regenerated gas is introduced into a regeneration cooler and exchanges heat with a cooling medium, so that the high-temperature regenerated gas is cooled and condensed, and liquid water is separated out; and the cooling medium after heat recovery is conveyed to a heat utilization unit, heat energy recycling is achieved, and operation parameters of the air compressor and the drying tower are coordinated in real time so as to maintain system pressure balance. The effect of improving the heat recovery efficiency during compression heat regeneration is achieved.

The utility model belongs to the field of automobile mechanical equipment, and particularly relates to a drying tank with a drying prolonging effect and an air compressor. The drying tank is installed at the front end of the air compressor, the interior of the drying tank is divided into a plurality of communicated cavities, and the cavities are communicated through air circulation openings. An air inlet of the drying tank is located in the first cavity, an air outlet of the drying tank is located in the tail end cavity, and an air circulation path in the drying tank is in a Z shape. A drying tank with the drying prolonging effect is installed at the front end of the air compressor, and when the air compressor operates, the interior of the drying tank is vacuumized to form a negative pressure area. Compared with the prior art, under the condition that the total mass of the drying tank is not changed, the contact time of air and a drying agent is prolonged by changing the air path distribution and path in the drying tank, so that the effect of prolonging adsorption is achieved, the drying tank is mounted at the front end of the air compressor, and the air quality is improved. And the problem of desiccant dusting caused by high pressure and the hidden danger of large flow resistance are avoided.

The utility model discloses a dried blood spot preparation device which comprises a sealing box, a cover body and a lining, a sample bin and a drying bin which are independent are arranged on the lining, a plurality of clamping grooves are formed in the sample bin and used for containing dried blood spot test paper, and a drying agent is arranged in the drying bin; a containing space is formed between the lining and the inner periphery of the sealing box, the containing space is communicated with the sample bin and the drying bin, and an air making system is arranged in the containing space. The dried blood spot preparation device can effectively promote quick drying of dried blood spots, so that water residues are reduced, the integrity of to-be-detected substances in the dried blood spots is guaranteed to the maximum extent, the stability of dried blood spot samples is remarkably improved, and a more reliable basis is provided for subsequent detection and analysis.

The invention discloses offset printing ink containing waterborne polyurethane-acrylic resin and a preparation method of the offset printing ink. The ink is prepared from the following components in parts by weight: 30-60 parts of pigment, 15-25 parts of waterborne polyurethane-acrylic resin, 2-5 parts of a dispersing agent, 1-3 parts of a flatting agent, 1-3 parts of an emulsifying agent, 1-2 parts of a drying agent and 60-180 parts of a solvent. The prepared offset printing ink contains the waterborne polyurethane-acrylic resin, the water resistance, the wear resistance and the flexibility of the ink are improved, the performance of the ink is further improved by adding the dispersing agent, the flatting agent and the emulsifying agent, the adhesive force of the ink is improved through combined use of Solsperse 20000 and diacetylene glycol, and the adhesive force of the ink is improved through combined use of BYK-333 and EFKA 3650. Due to the combined use of lecithin and Boltorn H20, the emulsifying property of the ink is improved.