756results about How to "Increase temperature" patented technology

The utility model provides an efficient desulfurization wastewater clarification device which comprises a clarification tank main body, and an upper heat exchanger, a heat exchange tube and a lower heat exchanger are sequentially arranged in an inner cavity of the clarification tank main body from top to bottom; the bottom of the heat exchange pipe is connected with a pipeline bracket, and clarification tank filler is arranged at the top of the heat exchange pipe; wherein the other end of the pipeline bracket is connected with the bottom of a sedimentation tank in the clarification tank main body; a sludge outlet is formed in the bottom of the sedimentation tank; the device can automatically clean and operate, is high in automation degree, and can specifically and efficiently precipitate desulfurization wastewater compared with a traditional precipitation tank; strong brine is used as a heat exchange medium for heat exchange, so that the temperature of the strong brine is increased, heat needed by temperature rise of the rear-end evaporation section is reduced, and the energy-saving effect is achieved.

The invention provides a nucleic acid probe, a primer group, a kit, a detection method and application, and relates to the technical field of biology. The nucleotide sequence of the nucleic acid probe is as shown in SEQ ID NO. 1; wherein the 3'end of the nucleic acid probe is modified with MGB, and locked nucleic acid is modified at a base position corresponding to the difference between the swine fever wild strain and the swine fever vaccine strain in the nucleotide sequence. According to the nucleic acid probe, a specific sequence is utilized to precisely target a swine fever wild strain, and locked nucleic acid modification is introduced at a differential site, so that the recognition capability on single-base mismatch is remarkably enhanced, non-specific binding to a vaccine strain is thoroughly blocked, and false positive interference is eliminated; and 3 '-terminal MGB modification is matched to improve the binding stability and sensitivity, so that the efficient and accurate identification of the swine fever wild strain under the immune background is ensured.

The application relates to the technical field of flue gas waste heat recovery, and discloses a rotary kiln flue gas low-temperature waste heat recovery device, which comprises a primary recovery chamber, a secondary recovery chamber and a water storage tank, a flue gas inlet pipe is fixedly installed at the left end of the outer wall of the primary recovery chamber, a flue gas connecting pipe one is fixedly installed at the right side of the upper end of the outer wall of the primary recovery chamber, the rear end of the outer wall of the flue gas connecting pipe one is fixedly connected with the front end of the outer wall of the secondary recovery chamber, the temperature of the heat-conducting aluminum sheet one directly contacting the outer wall of the S-shaped flue pipe is increased, the hot end of the thermoelectric sheet can have a constant high temperature, the heat-conducting aluminum sheet two contacting the inner wall of the water pipe one can take away the heat at the heat-conducting aluminum sheet two under the action of the water flowing in the water pipe one, and the cold end is formed, so that a temperature difference is formed between the hot end and the cold end of the thermoelectric sheet, the thermoelectric sheet can generate electricity by utilizing the temperature difference between the high and low temperatures, and the heat energy in the flue gas can be converted into electric energy.

The present application relates to the technical field of purification equipment, and particularly relates to a purification system for liquid lead-bismuth alloy coolant 210 The present application relates to the technical field of purification equipment, and particularly relates to a purification system for liquid lead-bismuth alloy coolant 210 Po and its compounds in the lead-bismuth alloy, and improves the operation safety of the lead-bismuth cooled reactor and the lead-bismuth experimental loop.

This invention discloses a novel, low-load, high-efficiency thermoelectric decoupling heating system. The system is characterized by replacing the high-pressure bypass section with an extraction section. This extraction section extracts steam from the middle of the superheater and uses this steam to heat the secondary air or drive the induced draft fan. Compared to existing technologies, this invention, after heating the secondary air or driving the induced draft fan, returns the steam to the cold section, thus overcoming the problem of limited extraction capacity in conventional systems. It also allows for changes in the coal-to-water ratio within the boiler under low load conditions, increasing the outlet steam temperature of the superheater and reheater under low load conditions, and avoiding the widespread problem of underheating of main steam and hot reheat steam under low load conditions.

A compact alternative low-voltage switchgear includes a front enclosure and a rear enclosure connected to the rear of the front enclosure. The front enclosure contains an incoming line compartment, a metering compartment, a secondary wiring compartment, and a circuit breaker mounting compartment. The incoming line compartment and the metering compartment are vertically aligned and interconnected. The secondary wiring compartment is located beside the incoming line compartment and the metering compartment, and a first partition is provided between the secondary wiring compartment and the incoming line compartment and the metering compartment. The circuit breaker mounting compartment is located below the metering compartment and the secondary wiring compartment, and a second partition is provided between the circuit breaker mounting compartment and the metering compartment and the secondary wiring compartment. Ventilation holes are provided on both the second partition and the first partition. The rear enclosure contains a capacitor bank switch compartment and a capacitor mounting compartment, located vertically and vertically respectively. This invention provides a compact alternative low-voltage switchgear with high space utilization, a reasonable layout, and good heat dissipation and maintenance convenience.

The utility model relates to the silver powder cleaning field, specifically disclose a kind of silver powder recovery impurity cleaning equipment, including the cleaning component on the collecting box, cleaning component includes scraper, one end of the collecting box is connected with connecting plate, electric cylinder is connected on the connecting plate, the utility model is through heat treatment-silver powder collection-compaction forming processing sequence, the efficient recovery of silver powder is realized, and utilize heating plate and top heating lamp collaborative heating, quickly and evenly promote silver powder temperature, again through the scraper in cleaning component by closely adhering and silica gel plate increase friction design, remove silver powder at the bottom of collecting box, and concentrate silver powder to reserved groove, finally, cylinder drive pressboard compaction powder in reserved groove multiple times, make silver powder dense forming, effectively reduce the loss in the recovery process, improve recovery efficiency and quality.

The utility model discloses a steelmaking continuous casting machine waste heat recycling device which comprises a conveying pipe and a heat exchanger, an annular blocking plate is arranged at the casting blank inlet end of the conveying pipe, a plurality of annular cavities are sequentially formed in the conveying pipe at intervals from the casting blank inlet end to the casting blank outlet end, and each annular cavity is connected with a cold air pipe. A plurality of air nozzles are uniformly distributed on the circumference of the side wall of the side, facing the annular blocking plate, of the annular cavity, cooling cavities are formed between the adjacent annular cavities and between the annular blocking plate and the annular cavities, a plurality of conveying rollers are arranged in the cooling cavities, an exhaust pipe is arranged on the side wall of the side, close to the annular blocking plate, of the cooling cavity, and a heat exchange pipe assembly is arranged in the heat exchanger. The exhaust pipe is communicated with an inlet of the heat exchange pipe assembly, a water supplementing opening is formed in the heat exchanger, an air compressor and a vortex tube which are communicated are arranged on the outer side of the conveying pipe, and a cold air outlet of the vortex tube is communicated with the cold air pipes. In conclusion, the casting device has the advantages of being small in heat loss, high in casting efficiency and high in heat recovery rate.

This utility model relates to the field of coolant filtration and discloses a concentrated coolant-composite filtration device with a quickly replaceable filter screen. The device includes a filter, a cooling water pipe fixedly connected to the top left side of the filter, a cooling plate installed outside the cooling water pipe, a cooling fan fixedly installed at the front end of the cooling plate, a filter screen cylinder placed inside the filter, a threaded sleeve fixedly connected to the center of the bottom of the filter screen cylinder, and a threaded opening at the top of the filter. This concentrated coolant-composite filtration device with a quickly replaceable filter screen filters particulate impurities contained in the coolant through the filter screen cylinder. Simultaneously, a magnetic rod inside the filter screen cylinder can adsorb metallic impurities mixed in the coolant, enhancing the filtration effect as the coolant passes through the filter screen cylinder. Cleaning is simple; just pull the ring to remove the magnetic rod from the limiting bracket for cleaning, thus solving the problem of poor filtration effect.

This invention discloses a low-temperature start-stop control method for a hydrogen fuel cell vehicle, comprising: during the startup of the on-board fuel cell system, performing a self-check to determine whether the ambient temperature is below 0°C; when the ambient temperature is below 0°C, detecting the operating status of the hydrogen fuel cell vehicle and executing different cold-start strategies according to the operating status; during the shutdown of the on-board fuel cell system, detecting the ambient temperature, and when the ambient temperature is below 0°C, executing a shutdown strategy to reduce cooling circuit heat dissipation. The shutdown strategy to reduce cooling circuit heat dissipation includes: reducing the cooling circuit temperature to a first preset temperature, where the first preset temperature is greater than 30°C. This invention's low-temperature start-stop control method for hydrogen fuel cell vehicles adopts a self-starting approach, avoiding multiple cold starts due to energy allocation during operation in low-temperature environments. It optimizes the fuel cell system shutdown purging strategy during vehicle operation, increases the shutdown temperature, slows down system temperature drop, improves insulation, reduces the risk of low-temperature cold start failure, improves fuel cell stack lifespan, reduces the additional heating space of the fuel cell, and reduces additional consumption of the fuel cell system.

The present application relates to the technical field of feed processing, and particularly relates to a preparation method of Maotai-flavor distiller's grains fermented feed, which comprises the following steps: drying treatment based on the moisture content of Maotai-flavor distiller's grains to obtain basic distiller's grains; determining the strain ratio of brewer's yeast, bacillus subtilis and aspergillus niger based on the tannin content of the basic distiller's grains to obtain a compound fermentation inoculant; inoculating and then fermenting; determining state evaluation parameters based on the total polyphenol accumulation rate, the dissolved oxygen consumption rate and the microbial activity index during the fermentation process, and performing qualified evaluation, and dynamically adjusting when unqualified; determining the fermentation end point based on the tannin degradation rate and the total polyphenol accumulation rate; and mixing the fermented distiller's grains with the basic feed at a mass ratio of 1% after low-temperature drying of the fermented distiller's grains. The present application realizes three-layer control of raw material evaluation, process control and end point determination, significantly improves the stability and content of functional active ingredients in the product, reduces the tannin and safety risk, and has a good intestinal health improvement effect on animals.

The invention discloses an elastic amorphous PCTG material and a preparation method thereof, and the elastic amorphous PCTG material comprises the following raw material components: terephthalic acid, ethylene glycol, 1, 4-cyclohexanedimethanol, iso-acid and iso-alcohol. Wherein the iso-acid comprises adipic acid, and the iso-alcohol comprises 1, 4-butanediol, polyethylene glycol and methoxy polyethylene glycol. The PTA, EG and CHDM are used as a basic reaction system of the PCTG material, the TG and TM temperatures of the material are increased by adding the CHDM and controlling the dosage of the CHDM, and then the high-temperature resistance of the material is improved. And meanwhile, by introducing iso-acid and iso-alcohol which are different from those of a basic reaction system, the regularity of molecules is changed, so that the elasticity of the material is improved. The TG temperature is 90-105 DEG C, the melting peak value is 180-230 DEG C, the tensile strength is larger than or equal to 50 MPA, the elastic modulus is 1200-1500 MPa, and the elongation at break is larger than or equal to 600 parts.

The application discloses a geothermal energy adjustable power generation system based on carbon dioxide working medium, which comprises a power generation well, a temperature and pressure adjusting device connected through a pipeline, a gas-liquid heat exchange device connected with the temperature and pressure adjusting device at one end and connected with a steam superheating device at the other end, a heat supply device and a turbine arranged on the steam superheating device, a power generation device connected with the turbine, the power generation device connected with the gas-liquid heat exchange device through a pressure adjusting device, a plunger pump connected with a recharging well at one end and connected with the gas-liquid heat exchange device through a refrigeration device at the other end. The system can further heat the carbon dioxide working medium after being converted into steam, thereby improving the temperature and pressure of the steam and the power generation efficiency of the turbine. Moreover, the output of the heat supply device is adjusted, the rotating speed of the turbine and the output power of the power generation device are adjusted, the adjustability of the power generation capacity is realized, and the defect of the vacancy of the technology in China is solved.

The utility model relates to a kind of cement stabilized macadam mixing devices of admixture recycling powder, it is related to recycling powder mixing technical field, including pre-stirring cooling cylinder, the top of pre-stirring cooling cylinder is provided with feed inlet, the inside opposite side between pre-stirring cooling cylinder is all provided with stirring assembly, the outer surface wall of pre-stirring cooling cylinder is provided with annular body, the top of annular body is provided with annular rack;Beneficial effect: by pre-stirring cooling cylinder, aggregate and recycling powder can be first stirred and mixed by stirring assembly, the heat absorption capacity of aggregate is reduced recycling powder temperature, then by fan device, the inside of pre-stirring cooling cylinder can be blown and cooled, water component is used to let the spray head body can be conveniently sprayed to carry out cooling treatment, which can accelerate the cooling efficiency of recycling powder, as far as possible can save time, and the cement stabilized macadam mixing efficiency is improved.

The application belongs to the field of automatic machinery and textile automatic cutting bed, and particularly relates to a multi-purpose polishing device for a cutting knife of an automatic cutting bed. The hollow tube type grinding wheel structure is internally driven by a motor arranged in the tube body, and is non-belt type and starts and stops immediately, has high polishing quality, and is integrated and suitable for relatively high compression space product structure. The elastic buffer structure of the polishing device is a combination of a cylinder and a pneumatic and air spring. The polishing device comprises a push-pull device, a buffer device, a suspension frame and a polishing device. The push-pull device comprises a push-pull cylinder and a push-pull integrated block. The buffer device is arranged on the back of the suspension frame and the front of the push-pull integrated block. The polishing device is arranged on the suspension frame and comprises a polishing tube, an inner core motor, a plurality of grinding wheels arranged on the polishing tube, and an inner core motor inserted into the hollow cavity of the polishing tube. The inner core motor directly drives the polishing tube to rotate, and the rotating polishing tube uses the grinding wheels on the outer wall to perform polishing work.

The invention provides a projection light machine and projection equipment, and relates to the technical field of optics. According to the projection light machine, the optical assembly in the projection light machine can be rapidly heated, and the heat dissipation efficiency of the projection light machine can be improved. The projection ray machine comprises a base body, an optical assembly, an imaging assembly and a liquid cooling medium. Wherein the base body is provided with a heating cavity and a cooling cavity; the optical assembly is arranged on the base body; the imaging assembly is arranged in the cooling cavity, the imaging assembly is used for enabling the illumination light beam transmitted to the imaging assembly to form a projection image, and the light beam of the projection image is adjusted by the optical assembly to form a projection picture; and the liquid cooling medium is positioned in the heating cavity and the cooling cavity.

This invention provides an arc-based additive and subtractive manufacturing method based on interlayer morphology reconstruction, belonging to the technical field of metal additive manufacturing. The method includes depositing an Nth layer of metal material on a substrate to form a deposition layer with a natural wavy morphology; acquiring actual morphology data to identify peak and valley distribution characteristics and planning a subtractive manufacturing path; selectively turning the deposition surface to obtain an anti-wavy substrate; detecting the surface temperature field of the anti-wavy substrate and cooling or preheating the substrate; and repeatedly performing arc-based additive deposition of the N+1th layer on the temperature-controlled anti-wavy substrate to complete the additive manufacturing process. This invention solves the technical problem in existing technologies where the wavy morphology between layers is not addressed, resulting in subsequent deposition layers covering and permanently remaining inside the workpiece, leading to a reduced yield. It achieves the technical effect of suppressing interlayer defects, reducing porosity by 90%, and improving internal quality.

This utility model discloses a heat dissipation structure for UV-curable pipe repair lamps, including a transparent tube body. Multiple sets of UV lamp assemblies are equidistantly installed along the circumference of the inner wall of the transparent tube body. Each UV lamp assembly includes a UV lamp, with both ends of the UV lamp fixedly connected to the transparent tube body via mounting rings. The emitting surface of the UV lamp is in close contact with the inner wall of the transparent tube body, and a liquid-cooled heat spreader is provided on the back of the UV lamp. A miniature liquid-cooled pump is provided at one end of the liquid-cooled heat spreader, which is connected to a liquid-cooled flow channel inside the heat spreader. This utility model employs a liquid cooling method combining a liquid-cooled heat spreader and a miniature liquid-cooled pump. The miniature liquid-cooled pump drives the coolant to circulate within the flow channel, quickly removing the heat generated by the lamp. Simultaneously, the liquid-cooled heat spreader is made of aluminum alloy and has heat dissipation fins on its surface, increasing the heat dissipation area and further improving heat dissipation efficiency. This effectively prevents heat accumulation, reduces the lamp temperature, and extends its service life.

The invention relates to novel liquid body temperature circulation temperature control equipment, and belongs to the technical field of medical temperature control equipment. The device comprises an equipment base, a temperature control host, a stand column, a T-shaped installation frame, a pipeline assembly, a temperature control assembly and a temperature sensing assembly, the stand column is fixedly installed above the equipment base, the temperature control host is installed on one side of the stand column, the T-shaped installation frame is fixedly installed above the stand column, a lifting hook is installed below the T-shaped installation frame, and the pipeline assembly is installed above the lifting hook. The temperature control assembly is fixedly installed on one side of the temperature control host, and the temperature sensing assembly is installed on one side of the lower portion of the temperature control host. The temperature control equipment monitors the pipeline output temperature and the core body temperature of a patient in real time through the temperature sensing assembly, the temperature control host adjusts the temperature control power in a closed-loop feedback mode based on monitoring data, accurate, rapid and stable temperature control is achieved, the equipment is suitable for various clinical scenes needing mild hypothermia intervention such as thermoplegia and the syndrome after cardiac arrest, treatment safety and effectiveness are improved, and the treatment cost is reduced. And the workload of medical staff is reduced.

This utility model discloses a molten glass shearing and guiding device, including a glass melting chamber with a discharge port at the bottom. A mounting block is located at the bottom of one side of the glass melting chamber, and a fixing block is mounted on the mounting block. Shearing blades are symmetrically arranged on both sides below the discharge port, each connected to a shearing arm. Each shearing arm has a vertically oriented rotating shaft at its tail end, with a rotating gear meshing at the bottom of each rotating shaft. The bottom end of the rotating shaft is located at the bottom of the fixing block. A feed hopper is located below the shearing blades, opposite the discharge port, and a guiding pipe is located at the bottom of the feed hopper, with helical rifling inside the guiding pipe. The beneficial effects of this utility model are: 1. By optimizing the heat insulation structure of the guiding device, a constant temperature of the molten glass can be maintained, preventing it from solidifying due to excessive cooling during flow, thereby ensuring the fluidity of the glass within the guiding pipe. Temperature stability helps avoid quality instability during glass bottle molding, improving product accuracy and consistency.

The application discloses a natural gas combustion spray gun for a large glass furnace, which comprises a coaxially arranged outer sleeve and an inner sleeve; a flow guide column is fixed at the front end of the inner sleeve, and an arc-shaped flow guide groove is formed in the circumferential surface of the flow guide column; a blind hole is formed at the front end of the flow guide column, and a third flow guide hole is formed in the flow guide column and is communicated with the arc-shaped flow guide groove and the blind hole; a second flow guide hole and a first flow guide hole are sequentially formed at the front end of the inner sleeve from front to back, and the second flow guide hole and the first flow guide hole are directed to the arc-shaped flow guide groove on the flow guide column; a heat insulation sleeve is sleeved at the front end of the outer sleeve, and a positioning ring is fixed in the inner part of the front end of the outer sleeve; a plurality of turbulence columns are uniformly fixed at the front end of the flow guide column and pass through the positioning holes in the positioning ring. The flow guide column is arranged at the front end of the inner sleeve, and the turbulence column is arranged at the nozzle position, so that the mixing area is enlarged, the atomization effect of the natural gas on the ethylene tar is improved, the fuel and the combustion-supporting agent are fully mixed, the fuel utilization rate is improved, and the heat radiation effect in the furnace is improved.

This invention discloses a biomass pellet burner, comprising: a hopper including an inlet and an outlet; a screw feeder including a screw feed pipe, a screw feed rotating component disposed within the screw feed pipe, and a screw feed drive component connected to the screw feed rotating component, the outlet being disposed at a first end of the screw feed pipe; a combustion chamber disposed at a second end of the screw feed pipe; an air supply device including an air supply chamber and an air supply drive component connected to the air supply chamber, the air supply chamber including an air distribution chamber and a combustion chamber air chamber, the air distribution chamber communicating with the screw feed pipe, and the combustion chamber air chamber communicating with the combustion chamber; and an ignition device, a sealing plate disposed between the air distribution chamber and the combustion chamber, the inlet end of the ignition device being located within the air distribution chamber, and the outlet end of the ignition device being located within the combustion chamber. This invention avoids backflow and backfire by balancing the pressure of the screw feed pipe and the combustion chamber.

This invention discloses a direct rolling production method for Q235B carbon structural steel plate. The chemical composition and mass percentage of the Q235B carbon structural steel plate are as follows: C: 0.16-0.19%, Si: 0.10-0.30%, Mn: 0.25-0.40%, P≤0.030%, S≤0.025%, with the balance being Fe and unavoidable residual elements and impurities from the production process. The production method includes continuous casting, billet reheating, rolling, and cooling. The superheat during continuous casting is controlled at 25-40℃, and the specific water content in the secondary cooling zone is controlled at 0.46-0.49 L / kg. The casting speed is controlled at 1.1–1.15 m / min, and the average temperature of the billet exiting the fan-shaped section is controlled between 1170–1220℃. After being cut, the continuously cast billet is conveyed to the steel tapping roller conveyor of the heating furnace without being heated in the heating furnace. The temperature drop during the conveying process is controlled below 2℃ / min. After the billet is sent to the steel tapping roller conveyor of the heating furnace, it enters a heat-replenishing and heat-insulating cover with edge heating function for heat replenishment. The billet temperature at the end of the heat replenishment process is controlled at 1150–1200℃. The carbon structural steel plate of this invention meets the national standards in terms of comprehensive performance, significantly reduces energy consumption costs, and has a simple and efficient process.

The utility model belongs to the technical field of transformers, and discloses a transformer oil storage assembly and a transformer, the transformer oil storage assembly comprises an oil tank and an oil storage mechanism, the oil tank is provided with an oil storage cavity, the oil tank is provided with a temperature detection piece, the temperature detection piece is used for detecting the temperature of oil in the oil storage cavity, and the oil storage mechanism comprises a first oil conservator and a second oil conservator. The first oil conservator and the second oil conservator are arranged on the oil tank, the first oil conservator is communicated with the oil storage cavity through a first oil conveying pipe, a switch valve is arranged on the first oil conveying pipe, and the second oil conservator is communicated with the oil storage cavity through a second oil conveying pipe. The transformer comprises the transformer oil storage assembly and further comprises a transformer body, and the oil tank is fixedly connected with the transformer body. According to the transformer oil storage assembly, compensation oil supply can be achieved for the oil tank of the transformer, and the temperature of oil in the oil tank is effectively prevented from being too high.

The invention discloses an integrated photovoltaic curtain wall system, and relates to the technical field of photovoltaic curtain walls. The system comprises a supporting frame, the supporting frame comprises a plurality of stand columns installed on a building main body structure and a plurality of supporting arms fixed to the stand columns, the stand columns are arranged at equal intervals, the supporting arms are perpendicular to the stand columns, and the supporting arms are arranged along the stand columns at equal intervals; the photovoltaic assembly comprises a first keel, a second keel connected to the lower end of the first keel and a photovoltaic panel installed on the first keel, and the outer end of the first keel and the outer end of the second keel are connected to the vertically adjacent supporting arms respectively. The lower portion of the first keel and the upper portion of the second keel incline in the direction away from the building main body structure. The heat dissipation effect of the photovoltaic panel is improved in a high-temperature environment in summer, the photoelectric conversion efficiency of the photovoltaic panel is improved, and meanwhile, the influence of high-temperature air gathered at the rear part of the photovoltaic panel on the room temperature of the internal space of a building can be reduced.

This utility model belongs to the field of heating devices, specifically relating to a heating element assembly and an aerosol generating device. The heating element assembly includes: two or more heating units arranged side-by-side; a cavity for receiving the aerosol-generated product at the center of the heating element assembly; and two or more heating units arranged around the cavity for receiving the aerosol-generated product, with the heating units insulated from each other. By controlling the start and stop times of each heating unit, the circumferential heating element assembly of this utility model can achieve the effect of circumferential segmented heating of the aerosol-generated product, ensuring that the aerosol is released more evenly throughout the entire inhalation cycle. This solves the problem of insufficient smoke volume in the later stages of conventional aerosol-generated products.

The invention relates to the technical field of carburizing furnaces, in particular to medium carbon steel gear heat treatment equipment capable of improving abrasion resistance, which comprises a furnace body, a heating resistor, sealing equipment and an air outlet pipe, the sealing equipment comprises a telescopic rod, a rotating plate and a sealing cover, and the medium carbon steel gear heat treatment equipment further comprises a fan assembly, a cooling assembly and a feeding assembly. By arranging the outer spiral groove, the inner spiral groove and the sealing pipe, kerosene flows between the sealing pipe and the rotating shaft, heat of the rotating shaft is absorbed through the kerosene, heat transmitted upwards by the rotating shaft is reduced, a sealing oil film is formed between the rotating shaft and the sealing pipe, and the sealing effect is further improved; kerosene can flow around the outer wall of the rotating shaft through the outer spiral groove and the inner spiral groove, the contact area between the kerosene and the rotating shaft is increased, the contact time between the kerosene and the rotating shaft is prolonged, the cooling effect of the kerosene on the rotating shaft is improved, the sealing pipe is made of ceramic and has good abrasion resistance, and abrasion between the bearing and the sealing pipe can be reduced.

A kind of copper clad steel grounding wire is used to straightening device, it is related to copper clad steel grounding wire straightening technical field, including mounting plate and the support frame for supporting mounting plate, a group of straightening rollers for extruding grounding wire is rotationally arranged on mounting plate, and once straightening area is formed between two straightening rollers, which can be passed through by grounding wire, first sliding plate capable of sliding along the direction perpendicular to the movement direction of grounding wire is arranged on mounting plate, and another straightening roller is rotationally connected with first sliding plate;Multiple auxiliary rollers are arranged on the side of straightening roller away from the entry of grounding wire, and multiple auxiliary rollers are respectively located at the two sides of grounding wire, so that secondary straightening area is formed between the two sides of auxiliary roller of grounding wire, which can be passed through by grounding wire, multiple second sliding plates capable of sliding along the direction perpendicular to the movement direction of grounding wire are arranged on mounting plate, and second sliding plate is located at the same side with first sliding plate, corresponding second sliding plate is rotationally connected with the side auxiliary roller, and the interval between straightening rollers can be adjusted to adapt to grounding wire of different diameters.

This application relates to the field of machining technology, and discloses an ultrasonic tool holder, ultrasonic machining equipment, and machine tool. The ultrasonic tool holder includes: a tool body and a connecting sleeve. The tool body has a second end and a first end arranged opposite to each other in a front-rear direction. The first end is adapted to be connected and fitted with a spindle, and the second end has a mounting cavity for accommodating a transducer. A wireless receiving unit is provided on the outer periphery of the tool body. The connecting sleeve is connected to the second end and arranged coaxially with the tool body. An outer shell is fitted onto the outer periphery of the connecting sleeve through a bearing, wherein the inner diameter of the bearing is less than or equal to the outer diameter of the second end. Therefore, by placing the bearing between the connecting sleeve and the outer shell, the bearing does not occupy the outer periphery space of the tool body, which reduces the axial dimension of the tool body, thereby improving the rigidity of the tool body and reducing the overall axial dimension of the ultrasonic tool holder. It also increases the structural dimensions of the transducer and reduces the radial dimension of the bearing, thereby improving ultrasonic machining performance.

The utility model relates to a new trend heat exchange technical field especially, and one kind of integrated heat recovery unit, including the new trend cooling heat exchanger and new trend reheating heat exchanger of installation on the new trend pipeline, and the circulating pipeline is installed between the new trend cooling heat exchanger and new trend reheating heat exchanger, and the circulating pipeline that the new trend cooling heat exchanger leads into new trend reheating heat exchanger installs the electric control circulation module. One kind of integrated heat recovery unit of the utility model uses heat recovery coil as heat exchange medium, adopts glycol solution as carrier, recovers the heat in new trend cooling processing, passes through heat recovery coil and delivers to glycol solution, raises the temperature of glycol solution, then through glycol circulating pump, the glycol solution that is heated is transported to the heat recovery coil of new trend reheating measurement, improves new trend temperature, reduces the reheat load of system and the operation cost of whole air conditioning system, whole device adopts split type structure design, and the installation is convenient, and the space restraint is small.