247results about How to "Barometric balance" patented technology

The invention discloses a water steam generation device for quantitatively controlling the steam amount of an outlet and a use method. The water steam generation device comprises a steam generator and a condenser. The outlet of the steam generator is connected with a first adjusting valve through a water steam output pipe. A pipeline passing through the first adjusting valve is divided into two branch ways, namely the steam outlet branch way and the steam backflow branch way. The steam outlet branch way sequentially passes through a second adjusting valve and a pressure gauge and then passes through a fifth adjusting valve to output steam. The steam backflow branch way passes through a third adjusting valve and is then connected with a water storage box. By means of the water steam generation device for quantitatively controlling the steam amount of the outlet and the use method, quantitative control over the steam output amount of the water steam generation device is achieved, the blank that a traditional steam flow meter or a traditional steam flow sensor or a liquid metering pump is not suitable for some occasions is filled up, in addition, the technological processes are simple, installation is convenient, a water tank and an electric tank are independent from each other, safety and reliability are achieved, and maintenance and repairing are convenient.

The invention provides a distillation apparatus. The distillation apparatus comprises a distillation bottle, a condensation bottle and a backflow bottle as well as a heating device, a condensation system, a control device and a shell, wherein the heating device is corresponding to the distillation bottle, the condensation system is corresponding to the condensation bottle, and a distillation gas inlet, a distillation liquid outlet, a condensate inlet and a condensate outlet are formed in the condensation bottle. The distillation apparatus is characterized in that the distillation bottle is provided with three bottle openings which are respectively a first bottle opening, a second bottle opening and a third bottle opening; and the distillation bottle is communicated with the distillation gas inlet of the condensation bottle through the first bottle opening, is communicated with a nitrogen flushing device through the second distillation bottle and is communicated with a sampling device and an anti-suck-back gas supply device through the third bottle opening. When the heating of the distillation apparatus is stopped, the suck-back cannot occur, the bumping is avoided in the heating process, and a tested material can be prevented from being oxidized in the heating process.

The invention discloses a sealed culture dish which comprises a dish bottom and a dish cover which can be tightly buckled with the dish bottom, wherein the dish bottom comprises a bottom wall and dish bottom side walls; the dish cover comprises a cover wall and dish cover side walls; friction sealing devices are arranged on contact surfaces of the dish bottom side walls and the dish cover side walls, so that the air tightness of the contact surfaces can be defined. Through holes or small holes are formed in the cover wall, a micro-hole filtering membrane and a hole plug are arranged in the through hole, or a filter is arranged in the small hole through a leather collar, a structure defined according to the condition is used as a gas exchange channel, the stability of an air component in a cavity of the culture dish is maintained, the balance of internal and external air pressure is maintained, the burst of the dish bottom and the dish cover is prevented, air flowing through can be filtered, a harmful gas solution such as thallus or spore of pathogenic microorganisms in the culture dish is prevented from passing or diffusion pollution, and the security of operators is ensured.

The invention provides a brewing machine, relates to a brewing device, and aims to solve the problems that the heating speed is slow, the fermentation is inadequate, and the fermentation by-product removing effect is bad, of the conventional brewing machine. The brewing machine comprises a tank body, a tank body top cover, a steam conduit, a condensing chamber, and a stirrer; the upper end surface of the tank body is an inclined surface, the tank body is divided into an upper part and a lower part by a partition plate, the upper part is a fermentation chamber, the lower part is a heating chamber; the stirrer comprises a stirrer rotation shaft and stirring blades arranged on the stirrer rotation shaft; the upper end of the condensing chamber is provided with a water inlet, the lower end of the condensing chamber is provided with a water outlet; the heating chamber is provided with a heating pipe and a heating medium; the fermentation chamber is provided with a fermentation room, a forward-rotating motor, and a plurality of hollow heat dissipation tube; one end of the steam conduit is connected to a steam outlet, the other end of the steam conduit is bent down and connected to the head end of a snake-shaped pipe arranged in the condensing chamber; a valve is arranged on the steam conduit, and a filter is arranged on the joint part between the steam conduit and the snake-shaped pipe. The brewing machine is used in the industrial brewing process.

The invention discloses surface treatment equipment for a brake disc production line, and particularly relates to the technical field of surface treatment. The surface treatment equipment comprises atop plate. A stepping motor is arranged at one end of the top of the top plate, and coupling shafts are perpendicularly arranged at the two ends of the bottom of the top plate. The end portion of an output shaft of the stepping motor penetrates through the top plate, and is in transmission connection with one coupling shaft. Linkage gears are fixedly connected to the bottom ends of the two coupling shafts. A transmission chain is arranged between the two linkage gears, and the two linkage gears are connected with each other through the transmission chain. A first single-rod hydraulic cylinderis fixedly arranged at the bottom of the transmission chain. A treatment box is divided into a grinding chamber, a pickling chamber and a cleaning chamber by utilizing a first partition plate and a second partition plate, a brake disc to be processed is pushed by the first single-rod hydraulic cylinder to move downwards to a grinding station, a pickling station and a cleaning station, work can besimultaneously carried out on the three stations, and therefore the surface treatment speed of the brake disc is greatly improved.

The invention provides a cooking pot. The cooking pot comprises a box, a heating component, a pot cover and a steam pipeline. A heating cavity and a condensation cavity are formed in the box. A mounting hole and an air hole communicated with the atmosphere are formed in the condensation cavity. A condensation material is arranged in the condensation cavity. The heating component heats the heating cavity. The pot cover is detachably connected with the box. A steam outlet is arranged on the pot cover. The first end of the steam pipeline is communicated with the mounting hole, and the second end of the steam pipeline is communicated with the steam outlet. Steam flows from the steam outlet into the condensation cavity through the steam pipeline. By the cooking pot, the steam is effectively prevented from being directly exhausted into the environment to corrode objects such as furniture and walls.

The invention discloses an automatic air pressure balancing door handle of a low-temperature cabinet. The door handle comprises a door handle shell which is provided with a handheld part, and lifting and pulling parts are connected to the two ends of the handheld part correspondingly. The door handle shell is in an n shape and is of a central symmetry structure. A door handle movable part is arranged on the inner side of the handheld part of the door handle shell, and springs are arranged between the handheld part and the door handle movable part of the door handle shell. The door handle movable part is also in an n shape, a first connecting rod and a second connecting rod are sequentially and perpendicularly connected to each of the two ends of the door handle movable part, and each first connecting rod and the corresponding second connecting rod are movably connected. A first connecting rod supporting column is clamped to the right side of each first connecting rod and the inner side of the door handle shell, a second connecting rod supporting column is clamped to the left side of each second connecting rod and the inner side of the door handle shell, and the second connecting rods are perpendicularly connected with pull rods. The invention further discloses a door which comprises the automatic air pressure balancing door handle of the low-temperature cabinet. The automatic air pressure balancing door handle of the low-temperature cabinet is simple in structure, and after the door handle movable part is pressed, the air pressure in the low-temperature cabinet and the air pressure outside the low-temperature cabinet can be balanced so that the door can be quickly opened.

The invention provides a solder mask hole-plugging structure and a hole plugging method thereof. The solder mask hole-plugging structure comprises a PCB substrate and a solder mask screen plate; the PCB substrate comprises a through hole; one end of the through hole is provided with an S-side open window, and the other end of the through hole is provided a C-side open window; a screen hole is formed in the screen plate; the diameter of the through hole is d; the diameter of the S-side open window is d; the diameter of the C-side open window ranges from 0.8d to 0.9d; the diameter of the screenhole is d; the screen hole is aligned with the S-side open window; the through hole is filled with solder mask from the S-side open window through the solder mask screen plate; and the PCB substrate is baked. With the solder mask hole-plugging structure and the hole plugging method thereof of the invention adopted, the solder mask can be effectively accommodated and borne; pressure of two ends ofthe solder mask can be effectively balanced, so that the solder mask can smoothly enter the through hole, and therefore, the saturation of the hole-plugging of the solder mask can be ensured; and thesolder mask will not be abnormally expanded due to pressure imbalance, so that it can be effectively ensured that the solder mask will not linger on the tin side of a PCB, and therefore, the quality of the hole-plugging of the PCB can be significantly improved.

The invention discloses a refrigerator hydrogen-enrichment device with high efficiency and high reliability. The refrigerator hydrogen-enrichment device with high efficiency and high reliability comprises an air inlet pipe, wherein an air inlet is formed in the top end of the air inlet pipe; a necking part is arranged on the upper part of an inner cavity of the air inlet pipe; an ultraviolet lampis arranged above the air inlet pipe; a control chamber is arranged on the outer side wall of the air inlet pipe; a condensation chamber is arranged under the air inlet pipe; a condensation device isarranged in the condensation chamber; an exhaust hole penetrates through a left side wall of the condensation chamber; a deodorization chamber is arranged on a left outer side wall of the condensationchamber; and an electrolysis chamber is connected under the condensation chamber, so that moisture absorption, deodorization and sterilization of a refrigerator can be realized, a fresh-keeping capability of the refrigerator is improved, and an air environment in the refrigerator can be improved. Steam passes through a condensation plate so as to condensate water in the gas, and flows into the electrolysis chamber so as to electrolyze liquified water into hydrogen and ozone; with the hydrogen, a reduction environment in the refrigerator can be improved, and the shelf life of food can be prolonged; and with the ozone, the gas sucked into the device can be sterilized and deodorized.

The invention provides a device for maintaining balance of inner pressure and outer pressure of a refrigerator, an installation method and the refrigerator. The device comprises a vent pipe and a one-way valve. One end of the vent pipe is connected with the one-way valve. The invention further provides the installation method of the device and the refrigerator. The device for maintaining the balance of the inner pressure and the outer pressure of the refrigerator can guarantee the balance of the inner pressure and the outer pressure of the refrigerator in real time, and does not need to be operated by manpower, sealing is guaranteed at the same time, cold leakage is avoided, the refrigerating effect is guaranteed, cost is low, the structure is simple, and replacement is convenient.

The invention provides a damp-repelling and heat-dissipating computer case, which comprises a case body, a case door, a viewable window, a dehumidifying fan, a refrigerating fan, a frequency converter, a sealing edge, self-locking casters, a circulating pipeline, a connecting piece, circulating air nozzles, a splitter top plate, a splitter bottom plate, a temperature and humidity detector, a hinged shaft, a hand wheel, a data processor, an electric mounting plate, a component, an air vent and a protective net. The upper part of the inner cavity of the case body is fixedly provided with the splitter top plate; the lower part of the inner cavity of the case body is fixedly provided with the splitter bottom plate; the circulating air nozzles are arranged at the top of the inner cavity of thecase body and at the bottom of the inner cavity of the case body, and the circulating air nozzle located at the top of the inner cavity of the case body and the circulating air nozzle located at the bottom of the inner cavity of the case body communicate with each other through the circulating pipeline, and the dehumidifying fan and the refrigerating fan are respectively installed on the circulating pipeline. The case can form a flowing airflow in the inner cavity of the case body, and has good effect of dispelling damp and lowering temperature. The air pressure in the case can be balanced bysetting the air vent, and the flying insects can be prevented from entering the case through the air vent through the setting of the protective net.

The invention discloses a method and a device for detecting and identifying air leakage of an explosion-proof valve of abattery cover plate. The device comprises a battery body and a battery cover plate installed on the upper part of the battery body, the middle part of the battery cover plate is provided with the explosion-proof valve, the top of the explosion-proof valve is provided with an air leakage identification unit, and the air leakage identification unit is provided with air leakage detection test paper. After the battery is filled with electrolyte, if the electrolyte leaks due to welding quality defects of the explosion-proof valve and gas generated after the leaked electrolyte is in contact with air is in contact with the air leakage detection test paper, the color of the air leakage detection test paper changes, and whether the color of the air leakage detection test paper changes or not is observed by naked eyes to judge whether the explosion-proof valve leaks or not. According to the invention, whether the explosion-proof valve has the welding defect can be simply and rapidly judged, the abnormal battery is identified, the abnormal battery is prevented from entering the subsequent process and flowing to the market to cause greater potential safety hazards, and the use safety of the battery is ensured while the detection cost is reduced.

The invention discloses a wafer packaging structure, a chip packaging structure and a packaging method thereof. The wafer packaging structure comprises a large substrate with a plurality of substrate units; the large substrate comprises a first surface and an opposite second surface, the middle of the first surface of each substrate unit is provided with at least one first groove, at least one exhausting groove is formed in the middle of the substrate unit surrounding the first groove and is communicated with the first groove communicated with the adjacent surrounding substrate units, and at least one exhaust groove is formed in the substrate unit of the edge surrounding the first groove and extends to the edge of the substrate to communicate with the outside. Thus, the first groove of the large substrate can be communicated with a cavity, the air pressure of the cavity and first groove can be balanced, a static film is prevented from plumping during evacuation, and the film electrostatic adsorption capacity in the dry etching process is guaranteed; the chip packaging structure is obtained by cutting and segmenting the wafer packaging structure.

The invention relates to the technical field of hand sanitizer dispensers. The invention discloses a medical hand washing device which comprises a box body, a feeding port is formed in the top of thebox body, and a sealing plate is detachably connected to the feeding port; a storage box with an opening in the top is arranged in the box body and communicates with the feeding port, and a pluralityof through holes are formed in the bottom of the storage box at equal intervals; the device further comprises a gathering box with an opening in the top, the gathering box is located in the box body,and the bottom of the gathering box communicates with a first discharging pipe penetrating through the bottom of the box body. A communicating part used for communicating and blocking the through holes and the gathering box is further arranged in the box body, and an induction control part used for inducing a hand to control the communicating part to work is arranged at the bottom of the box body.According to the scheme, the problem that cross infection is easily caused by an existing hand sanitizer using mode is mainly solved.

The invention discloses a making process of pickled vegetables rich in active probiotics. The making process comprises the following steps of thoroughly cleaning vegetables, and then performing air-drying; putting mother water for pickled vegetables in a container for pickled vegetables; placing the air-dried vegetables in the container for pickled vegetables, and enabling water in the container for pickled vegetables to be just higher than the vegetables; inflating nitrogen into the container for pickled vegetables to enable the nitrogen to form an oxygen separation layer on the surface of the mother liquid for the pickled vegetables; loading probiotics into the container for pickled vegetables; and performing sealing operation, and fermenting the vegetables in the container for pickled vegetables. An open inflating manner is directly used, and only a nitrogen layer needs to be directly formed on the surface of the mother liquid for the pickled vegetables, so that separation of the oxygen in air is realized, and growth of oxygen consumption putrefying bacteria (mould, microzymes, bacillus and escherichia coli) can be prevented. Besides, the environment in the mother liquid for pickled vegetables is oxygen-free environment, the environment is particularly suitable for growth of the anaerobic probiotics, the probiotics are active microorganisms beneficial for hosts, and can generate precise healthy efficacy for intestinal tracts and reproductive systems of human bodies, so that the function of human bodies can be improved, and the making process can elaborate beneficial effects.

The invention discloses a small-sized sewage treatment ship type settling pool device. The small-sized sewage treatment ship type settling pool device comprises a ship body; two groups of supporting bosses which are symmetrically distributed are arranged on the lower side of the ship body; a sealing cover plate is arranged on the upper side of the ship body; the sealing cover plate is connected with the ship body through a bolt; one side, far away from a water inlet pipe, of the ship body is connected with one end of a water outlet pipe; an annular fixed plate is connected with the ship body through a bolt; an output shaft of a servo motor is connected with one end of a rotating shaft through a shaft coupler; sludge can be discharged out of the ship body effectively by a telescopic rod, amud discharge pipe, a mud scraping plate, a sludge groove and the like, the subsequent sewage treatment is prevented from being hindered, and a sludge filtering layer and a screen plate can perform sludge settlement treatment on the sewage rapidly, so that the time cost is reduced and the treatment efficiency is improved; and an activated carbon can balance the gas pressure in the ship body and can effectively protect the surrounding environment from being troubled by peculiar smell.

The invention relates to a generator, in particular to an efficient high-voltage generator air path. The efficient high-voltage generator air path comprises a shell; a stator is fixed on the inner wall of the shell; a rotor is arranged inside the stator; the rotor is fixed with one end of a first rotating shaft; the other end of the first rotating shaft penetrates through the end part of the shelland is fixed with a driving wheel; the other end of the shell is provided with a dust filter net; the dust filter net is fixed with a mounting plate by a connecting rod; a placing hole is opened in the mounting plate; the rear part of the inner wall of the placing hole is fixed with a flange; an axial flow fan is placed inside the placing hole; a pulling rod passing through the side wall of the placing hole is relatively slidably connected to the mounting plate; a limiting block is fixed to the end part of the pulling rod; a mounting block is fixed to the pulling rod; and the mounting block is connected with the outer wall of the mounting plate through a spring. The technical scheme provided by the invention can effectively overcome the shortcomings of poor heat dissipation performance and the inability to install a cooling fan in the prior art.

The invention relates to multi-cavity diaphragm hollow glass which comprises an upper piece of glass, a lower piece of glass, a partition strip frame and a diaphragm, wherein the upper piece of glass and the lower piece of glass are arranged in parallel, and a four-framed partition strip frame is fixedly stuck on the four sides of the upper piece of glass and the lower piece of glass respectively; a diaphragm is fixedly stuck between two partition strip frames; and two cavities are formed by the diaphragm and the glass on the two sides. A high-air tightness adhesive is encapsulated between the edges of the four sides of the upper piece of glass and the lower piece of glass and the partition strip frames. The multi-cavity diaphragm hollow glass is characterized in that a side diaphragm is fixedly stuck on the upper piece of glass, the lower piece of glass and the partition strip frames respectively; and an adhesive tape frame is fixedly stuck between the side diaphragm and the upper piece of glass. In the hollow glass, two pieces of glass can form four cavity structures through the scientific setting of the diaphragm, and the heat and sound insulation effect is greatly improved; and since the diaphragm can be a modified thermal-shrinkage polyester film, the process is simplified, and the production efficiency is improved.