37 results about "High air pressure" patented technology

This invention relates to the field of foundation settlement monitoring technology, specifically addressing the problem of uneven settlement around building foundations. The deformation monitoring device is strip-shaped and includes an air belt and several deformation detection units. Each deformation detection unit includes a pressure cylinder, a push rod, and a pressure measuring cylinder. The push rod is installed inside the air chamber of the pressure cylinder. The top of the pressure cylinder has an air inlet connecting to the air chamber, and the pressure cylinder is connected to the air belt through its air inlet. The pressure measuring cylinder has an air chamber inside, and a pressure measuring element is installed inside the air chamber. The bottom end of the pressure measuring element passes through the air belt and connects to the top of the piston. Adjacent pressure measuring cylinders are connected to their air chambers through pipes. This invention uses the high air pressure in the air belt to push the push rod downwards in conjunction with foundation settlement. During the downward movement of the push rod, the pressure measuring element also moves downwards, causing a decrease in air pressure inside the pressure measuring cylinder, thereby determining that settlement has occurred around the building foundation.

The utility model discloses a high air pressure range hood with an air duct provided with an anti-backflow structure, which belongs to the technical field of range hoods and comprises a range hood shell, the front side of the range hood shell is an inclined plane, a switch touch screen interface is arranged above the front side of the range hood shell, a case is arranged on the rear side of the range hood shell, and the case is provided with an anti-backflow structure. An air duct body is connected and mounted above the case, an automatic door is arranged on the front side of the range hood shell, an oil fume filter tank is arranged below the front side of the range hood shell, a fan shell is arranged in the case, an exhaust fan is arranged in the fan shell, and a three-phase direct-current brushless motor is connected and mounted on a filter element on the right side of the exhaust fan; according to the high-air-pressure range hood with the air duct provided with the anti-backflow structure, the problem that the cooking environment is affected due to the fact that oil smoke flows backwards easily in an existing range hood is solved, the high-air-pressure range hood is suitable for various kitchen environments, and a fresh cooking space is provided for a user.

The utility model relates to the technical field of sliding doors, in particular to a sealing structure of a sliding door and the sliding door comprising the sealing structure. The sealing structure comprises a door frame and a door leaf installed in the door frame, a protruding part protruding towards the door leaf is arranged on the inner side of the door frame, a first sealing rubber strip is arranged at the end, close to the door frame, of the door leaf, and the first sealing rubber strip and the protruding part are oppositely arranged and extend in the direction perpendicular to the indoor and outdoor direction. When the door leaf moves towards the door frame to be tightly matched with the door frame, the first sealing rubber strip abuts against the protruding part in the moving direction of the door leaf towards the door frame and is compressed. The door leaf and the door frame are in firm contact and tight sealing through the compressed first sealing rubber strip, and even if the door leaf is subjected to high air pressure and deviates towards the indoor side or the outdoor side, the first sealing rubber strip and the protruding part can keep tight abutting so that the sealing state can be stable. The air leakage and water leakage risks under high wind pressure can be effectively reduced, and the air tightness and water tightness of the sliding door are remarkably improved.

The present invention relates to a portable system and method for providing holistic wellbeing assessment to be performed. The system comprises a modular air-tight chamber built upon a plurality of vehicular chassis, watercraft and inflatable spaces with its internal air separated from external environmental air. An acoustic tactile and infra-red radiating floor and wall surface module (200). A mirror is embedded leaderboard and video consultation instructional display module (300). A health and nutrition assessment module (400); singular or plurality of retractable treatment and therapy couch module(s) (450) is contained inside a high air pressure and oxygen rich airtight chamber (800,). A health sensor data aggregator (740) and artificial intelligence (AI) based main controller (705) is connected cloud (790) to display the content. A health assessment module is integrated with plurality of interactive sensory and 3D stereoscopic vision camera arrays (420) and breathe analysis module (415). The health assessment module is integrated with facial scanning and 3D body imaging camera array module (8A) and the health assessment module with integrated breath analyser (415).

Gripping device, with a gripping mechanism comprising a plurality of gripping elements (122, 123), wherein the gripping mechanism is configured to grip a workpiece by moving at least one of the gripping elements (122, 123); and a variety of pocket-shaped actuator systems with: a pocket-shaped actuator (1A, 1B; 11A-11D) with an airtight pocket element (2A, 2B; 12A-12D) made of a flexible film material and flowable particles (3A, 3B; 13A-13D) filled into the pocket element (2A, 2B; 12A-12D); a pocket element communication line (4A, 4B; 14A-14D) configured to communicate with an interior of the pocket element (2A, 2B; 12A-12D) of the pocket-shaped actuator (1A, 1B; 11A-11D); a negative pressure source communication line (5A, 5B; 15A-15D) configured to communicate with a negative pressure source (LP) that has a lower air pressure than the ambient air; a pressure source communication line (6A, 6B; 16A-16D) configured to communicate with a pressure source (HP) that has a higher air pressure than the ambient air; a switching mechanism (7A, 7B; 17A-17D) configured to perform switching between communication destinations of the pocket element (2A, 2B; 12A-12D) of the pocket-shaped actuator (1A, 1B; 11A-11D), such that the interior of the pocket element (2A, 2B; 12A-12D) communicates with the ambient air, the negative pressure source communication line (5A, 5B; 15A-15D), and the positive pressure source communication line (6A, 6B; 16A-16D) via the pocket element communication line (4A, 4B; 14A-14D); and a switching control section (8, 18) configured to control the switching between the communication destinations by the switching mechanism (7A, 7B; 17A-17D); wherein the gripping elements (122, 123) comprise respective contact gripping sections (126, 127) which are configured to grip the workpiece by contacting the workpiece; wherein at least one of the gripping elements (122, 123) is configured such that the contact gripping section (126, 127) and a base-end contact section (128, 129) are formed by respective pocket-shaped actuators of the pocket-shaped actuator systems, wherein the base-end contact section (128, 129) is arranged closer to a base end of the at least one of the gripping elements (122, 123) than the contact gripping section (126, 127), wherein the base-end contact section (128, 129) is configured such that it rests against the workpiece from the base end of the at least one of the gripping elements (122, 123).

The invention discloses a composite mixed-flow turbine, which belongs to the technical field of turbines, and mainly comprises a volute, a flow guide plate and a flow guide plate, the air inlet cone is mounted in the volute casing; the rotating piece is mounted on the air inlet cone; the impeller is installed on the rotating piece, multiple layers of blades are arranged on the impeller, the blades in part of layers are composite blades, the blades in part of layers are axial flow blades, and the blade layers with the axial flow blades are arranged adjacently; the length of the projection of a blade root chord D of each axial flow blade on the axis of the impeller is the projection length H, and the distance between adjacent layers with the axial flow blades is 1 / 5H-1 / 3H; and the tail cone is mounted in the volute casing, and the tail cone corresponds to the impeller. The turbine solves the problems that when fluid passes through an existing turbine, large air volume and high air pressure cannot be provided at the same time in a small space size, and turbulent flow and too large noise are generated at the same time.

The air conditioner comprises a machine shell, an evaporator, an axial flow fan and an air outlet channel, an air inlet is formed in the lower portion of the machine shell, and an air outlet is formed in the upper portion of the front side of the machine shell; the evaporator, the axial flow fan and the air outlet duct are all arranged in the machine shell, the axial flow fan is arranged on the upper side of the evaporator, and the air outlet duct is arranged between the axial flow fan and the air outlet; at least one part of the air outlet duct is in an arc shape and is obliquely arranged in the direction facing the air outlet from bottom to top. According to the air conditioner, the air supply distance of the air conditioner can be prolonged due to the fact that the air pressure of the axial flow fan is high. The overall size of the axial flow fan is large, so that the disassembly and assembly convenience of the axial flow fan can be improved.

The utility model discloses an explosion-proof cloth bag dust collector for a coal mill system, which relates to the technical field of cloth bag dust collectors, and comprises a bottom plate, a box body is arranged on the outer wall of the top of the bottom plate, a partition plate is welded on the inner wall of the box body, a mounting hole is formed in the center of the partition plate, a connecting groove is formed in the inner wall of the mounting hole, and the connecting groove is communicated with the box body. The outer wall of the connecting groove is rotationally connected with a dust removal bag through threads, and a supporting frame is arranged on the inner wall of the connecting groove. According to the dust removal device, the dust removal bag purifies air, when the pressure in the box body is too large or the temperature is too high, unfiltered air in the box body is guided into the pressure relief box through the pressure relief pipe, and the air pressure and the temperature in the box body are gradually reduced along with the fact that high-temperature air in the box body is guided out; the dust collector is prevented from exploding by reducing the temperature and air pressure in the box body, compared with a traditional dust collector, the air pressure and temperature in the dust collector are reduced by exhausting air in time, and dust explosion caused by too high air pressure in the dust collector is prevented.

The invention relates to a high-pressure airtightness detection method and device for a water soaking machine, and the method is used for detecting the airtightness of a to-be-detected product through a water soaking method, and comprises the steps: injecting water into a detection cavity, enabling a lifting platform to be located above the water surface, and placing the to-be-detected product on the lifting platform; the upper cover is inserted into the detection cavity to be in sealing fit with the detection cavity, the upper cover is rotated to be in contact with and locked with the detection cavity in the longitudinal direction, and high-pressure gas is continuously filled into the detection cavity; in the inflation process, the air pressure in the detection cavity pushes the upper cover to abut against the detection cavity in the longitudinal direction, the pressure sensor arranged at the abutting position continuously monitors the pressure from the upper cover, inflation is stopped when the pressure reaches a threshold value, and standing is conducted for the preset time. The explosion risk caused by too high air pressure can be effectively avoided in the detection process, meanwhile, the stability of the pressure difference condition is guaranteed, and therefore the detection safety and the result reliability are improved.

The application discloses a hair dryer, which comprises a handle connected with a wind tube, a fan assembly arranged in the handle, a front end of the wind tube being an air outlet end, a rear end of the wind tube being closed, an annular air outlet being formed on the periphery of the front end of the wind tube, a central air outlet hole being formed at the center of the front end of the wind tube, high-speed airflow in the wind tube being blown out from the annular air outlet and the central air outlet hole respectively, and the airflow blown out from the annular air outlet and the airflow blown out from the central air outlet hole being mixed to form a cylindrical laminar airflow with enhanced air pressure after passing through a specific distance. The air outlet structure of the application is composed of the annular air outlet and the central air outlet hole, the blown-out airflow is mixed to form the cylindrical laminar airflow with enhanced air pressure after passing through the specific distance, and the enhanced section is just the normal use section of the hair dryer. The above structure of the application makes the airflow reach the highest air pressure in the use section, and improves the utilization rate of the air pressure.

The utility model relates to the technical field of air-cooled coolers, and discloses a novel switchable impeller cooling fan for a waste incineration plant, which comprises a mounting frame. According to the novel switchable impeller cooling fan for the waste incineration plant, temperature, humidity and pressure difference data can be analyzed in real time through the three impellers with different inclination angles in cooperation with the central control module, the optimal impeller combination can be intelligently selected, the air volume, the air pressure and the energy consumption are balanced, and the novel switchable impeller cooling fan is suitable for the complex working conditions of the waste incineration plant; the filter screen cleaning cycle or the part replacement requirement can be predicted by combining the pressure difference transmitter with temperature and humidity data, the manual inspection cost is reduced, the first impeller with the inclination angle of 30 degrees has low resistance and high air volume and is suitable for rapid heat dissipation, the second impeller with the inclination angle of 38 degrees balances air pressure and air volume and deals with conventional working conditions, and the third impeller with the inclination angle of 45 degrees has high air pressure and high air volume and is suitable for rapid heat dissipation. And the coating has strong penetrability and is suitable for high-temperature or high-resistance environments.

The utility model relates to a tower type low-noise multistage series fan which comprises a fan cavity with an inner cavity formed inside, an air inlet formed in the top of the fan cavity, a motor arranged in the fan cavity, a communication cavity fixedly communicated with the motor cavity and a plurality of fan assemblies sequentially communicated with one end of the communication cavity. A rotating shaft is fixedly arranged at the output end of the motor, the fan assemblies are arranged on the rotating shaft, and the number of the fan assemblies is three. In the utility model, through the design of the multi-stage fan assembly connected in series, each stage can effectively accelerate and pressurize air, so that the air volume and the air pressure output of the fan are improved on the whole. The application requirements of high air volume and high air pressure are met, the energy loss is reduced by optimizing the air flowing path, and the energy efficiency of the fan is remarkably improved. In addition, the multiple fan assemblies are connected in sequence, eddy currents and turbulent currents are reduced, and therefore noise is reduced.

An improved umbrella is provided including a collapsible support structure, a primary canopy disposed over the support structure and defining a number of holes and an upper opening therein, a secondary canopy operably secured to the primary canopy to overlap the number of holes and a tertiary canopy operably secured to the primary canopy to overlap the upper opening. The alignment of the secondary canopy and the tertiary canopy over the holes in the primary canopy enables the dissipation of high air pressure formed within the interior of the umbrella caused by winds contacting the umbrella while maximizing the structural integrity of the umbrella.

The present disclosure relates to the technical field of turbines. Disclosed are a combined impeller and a turbine. The combined impeller comprises: a rotating portion; and a plurality of layers of blades mounted on the rotating portion, wherein blades of some layers are composite blades, and blades of other layers are axial-flow blades; the layers of blades having the axial-flow blades are adjacent to each other; and the length of a projection of a root chord D of each axial-flow blade on the axis of the impeller is a projection length H, and the spacing between adjacent layers having the axial-flow blades is 1 / 5H - 1 / 3H. The present disclosure solves the problem of an existing turbine being unable to provide both a large air volume and a high air pressure within a small space size while simultaneously generating turbulence and excessive noise when a fluid passes through.

The embodiment of the utility model provides an air conditioner which comprises an air supply pipeline extending to a target space, and an air inlet duct and an air return duct are arranged in the air supply pipeline; the machine body comprises a shell, an evaporator, a condenser, a compressor and a centrifugal fan, the evaporator, the condenser, the compressor and the centrifugal fan are arranged in the shell, the evaporator is located at the output end of the air return duct, and air in the target space flows to the evaporator from the air return duct; the input end of the centrifugal fan communicates with the downstream of the evaporator, the output end of the centrifugal fan communicates with the input end of the air inlet duct, and air subjected to heat exchange through the evaporator is blown into the air inlet duct through the centrifugal fan and then flows into the target space. The centrifugal fan with high air pressure is arranged, and the high air pressure can ensure that air can efficiently and stably flow in the air supply pipeline. In addition, due to the high air pressure characteristic of the centrifugal fan, smooth circulation of air in the air conditioner can be guaranteed, energy loss caused by unsmooth air flowing is reduced, the energy efficiency ratio of the air conditioner is increased, and the more energy-saving and efficient operation state is achieved.

A semi-resistance type pressure relief ventilation cap of an air cushion machine relates to the field of machinery and comprises a bottom plate, an air inlet is formed in the middle of the bottom plate, an annular cylinder is formed on the periphery of the bottom plate, a filter screen is arranged on the inner wall of the annular cylinder, a guide column is arranged at the bottom of the filter screen, and a lifting sleeve is arranged outside the guide column in a sliding fit mode. A conical plugging block is installed at the bottom of the lifting sleeve and matched with the air inlet. By means of the ingenious design, the air pressure in the air tank of the air cushion conveyor is successfully adjusted, the problems of tail turbulent flow and dust raising caused by too high air pressure are solved, therefore, the cleanness of the working environment is maintained, pollution to the surrounding environment is reduced, and due to the unique arrangement of the conical rain-proof cap, the safety of the air cushion conveyor is improved. And external rainwater and impurities are effectively prevented from entering, so that the durability of the equipment is remarkably improved, and the operation safety is ensured.

The present application relates to the technical field of atomizer, and discloses a pure essential oil atomization device, which comprises a shell, a piezoelectric fan and an atomization assembly. A partition plate is arranged in the shell, and the shell is divided into an air duct and a mounting cavity by the partition plate. An air inlet and an air outlet which are communicated with the air duct are arranged on the shell at intervals, and a mist outlet is arranged on the partition plate and communicated with the mounting cavity and the air duct. The piezoelectric fan is connected with the shell and arranged at the air inlet, and the air outlet end of the piezoelectric fan faces the inside of the air duct. The atomization assembly is arranged in the mounting cavity and located at the mist outlet. The piezoelectric fan is arranged to drive air to flow in the air duct, so that higher air pressure can be generated, and the required installation space of the piezoelectric fan is smaller, thereby reducing the volume of the pure essential oil atomization device. Moreover, the piezoelectric fan is arranged at the air inlet, so that the mist will not pass through the piezoelectric fan, thereby avoiding that the mist is condensed on the piezoelectric fan after long-term use, and ensuring the air pressure of the air flow output by the piezoelectric fan.

The application provides a feed processing workshop cloth bag dust removal device, and relates to the technical field of dust removal equipment. The device comprises a box body, the bottom end of the box body is fixedly connected with an air inlet pipe, the inner wall of the top of the box body is fixedly provided with a partition plate, an air outlet cavity is formed between the upper surface of the partition plate and the inner top wall of the box body, the top end of the box body is fixedly connected with an air outlet pipe, the air outlet pipe is connected with the air outlet cavity, and a plurality of filter bag cylinders are fixedly arranged on the middle part of the partition plate. The device can introduce high-pressure air into the guide air pipe, rotate and blow the inner wall of the filter bag cylinder through the arc-shaped air jet pipe, and ensure the cleaning effect of the filter bag cylinder. In addition, the high air pressure in the guide air pipe can also drive the piston block and the magnet block to move downward at the same time, the piston block drives a plurality of annular brushes to clean the outer surface of the filter bag cylinder, effectively removes the dust accumulated on the outer surface of the filter bag cylinder, and further improves the cleaning effect of the filter bag cylinder.

The invention provides an array-type high-air-pressure aeration device which comprises a pump head, a fixed diaphragm and a movable diaphragm are arranged in the pump head, and the fixed diaphragm and a cylinder body of the pump head form a circumferential sealing structure, and the movable diaphragm and the cylinder body of the pump head form a circumferential sealing structure; the movable diaphragm slides in the cylinder body in the axial direction. The back face of the movable diaphragm is hinged to a connecting rod, the connecting rod is hinged to a crank, and the crank is rotationally connected with a crank throw of a crankshaft in a sleeved mode. The number of the pump heads is at least two, and connecting rods of the pump heads are connected with the crank. The movable diaphragm and the fixed diaphragm are provided with ventilation grids for conducting the front surface and the back surface, the front surfaces of the movable diaphragm and the fixed diaphragm are provided with non-return sheets, and the non-return sheets cover the ventilation grids; the crankshaft is connected with a power source. By adopting the structure of the movable diaphragm, the technical problems of extremely high equipment type selection and extremely high energy consumption caused by the requirements of air pressure and flow required by aeration of the aeration tank under the working condition of water depth of more than 6 meters are solved. By the adoption of the structure of the array pump head, the pressure of output compressed air reaches 0.12 MPa or above, and the flow reaches 225 m < 3 > / min or above.

We provide a portable bladeless fan that produces a powerful, low-noise breeze with high air pressure and airflow. [Solution] A portable bladeless fan comprising a housing 1 having an intake section 11 on the rear side and an outlet section 12 on the front side, wherein the intake section 11 and the outlet section 12 are in communication within the housing 1; a mixed-flow fan 2 provided within the housing 1 and rotating around a rotation axis 212 to generate airflow; and a pressurizing member 3 connected to the front portion of the housing 1 and located in front of the mixed-flow fan 2, including a pressurizing seat 31 and a plurality of second blades 32.

The utility model belongs to the technical field of spray drying, and particularly relates to a pressure spray air distribution mechanism which comprises a flow distribution box, a round hole is formed in the upper surface of the flow distribution box, an outer air guide cover is fixedly installed at the position of the round hole in the flow distribution box, and an inner air guide cover is arranged in an inner cavity of the outer air guide cover. The turbulent flow assembly and the dispersing assembly below are used for conducting disturbing mixing and three-stage dispersing disruption on the heated raw materials, the effective contact area between hot air and the atomized raw materials is increased, the uniformity of fog drops in the drying process is guaranteed, and the possibility that large and small particles are differentiated is reduced; due to the fact that the heated atomized raw materials are conveyed through the multiple air supply pipes, the mode that a traditional device conveys materials through a single feeding port is changed, the requirement for continuous high air pressure is lowered, and then energy consumption is reduced.

The application discloses a water and air inlet structure of a pressure package, which comprises a fluid container, a Venturi nozzle, a baffle and a float. The fluid container is provided with a containing cavity, a water inlet channel and an air inlet channel. The containing cavity is provided with a fluid inlet, and the water inlet channel and the air inlet channel are communicated with the fluid inlet. An inner wall of the air inlet channel is formed with a limiting ring, and an air inlet is arranged in the ring. The Venturi nozzle is arranged at a position where the water inlet channel is communicated with the fluid inlet. The baffle is axially limitedly matched with the outside of the air inlet to movably seal the air inlet and not to be separated from the air inlet channel. The float is arranged at the inside of the air inlet, and a convex column is arranged at the top end of the float. The convex column movably penetrates the air inlet and abuts against the baffle. The float is lifted by the pressure in the fluid container until the air inlet is closed, and the convex column lifts the baffle to open the air inlet before the float closes the air inlet. The application can control the total amount of inhaled gas when water and air are supplemented, avoid the over-high air pressure in the pressure package, and thus reduce the water inlet and outlet noise and improve the user experience during use.

An improved umbrella is provided including a collapsible support structure, a primary canopy disposed over the support structure and defining a number of holes and an upper opening therein, a secondary canopy operably secured to the primary canopy to overlap the number of holes and a tertiary canopy operably secured to the primary canopy to overlap the upper opening. The alignment of the secondary canopy and the tertiary canopy over the holes in the primary canopy enables the dissipation of high air pressure formed within the interior of the umbrella caused by winds contacting the umbrella while maximizing the structural integrity of the umbrella.

The invention discloses a control method, particularly relates to a control method for dust removal of a high-air-pressure down-the-hole drill, and belongs to the technical field of drilling control processes of mine drilling equipment. According to the control method for dust removal of the high-air-pressure down-the-hole drill, the dust removal effect can be effectively improved, dust removal energy consumption is reduced, and spare part consumption is reduced. The control method comprises the steps that a dust collection box, a centrifugal separation vertical barrel and a dust catcher are sequentially connected into a whole through a dust collection pipeline, and a dust removal fan motor and a dust removal bin gate motor of the dust collection box are controlled through two reversing electromagnetic valves correspondingly; when dust is collected, the dust removal fan and the dust removal bin gate are opened by delaying for at least 2 seconds under the control of a dust removal fan motor and a dust removal bin gate motor which are controlled by each reversing electromagnetic valve; the four pulse electromagnetic valves of the dust collecting box circularly start the dust stopping motor at the interval of at least one second, dust stopping compressed air is input into the dust removing filter element of the dust collecting box to remove accumulated dust on the dust removing filter element, and dust collecting and dust stopping accumulation removing are arranged in a mutual exclusion mode.

The invention discloses a vacuum and beam regulation and control method applied to a beam outlet end of a BNCT ion source, and belongs to the technical field of particle accelerators and vacuum, and the method is realized by utilizing a variable mechanism which is provided with a cooling mechanism and can electrically adjust the aperture of an air inlet hole under high air pressure. The problems that an ion source beam outlet end adsorptive vacuum pump needs to be heated and activated after working for a long time, and pore diameters need to be increased to increase conductance are mainly solved; and when the ion source works and emits beams, the aperture needs to be reduced to reduce beam divergence. According to the method, a variable aperture structure is adopted, actual requirements of high air pressure, heat dissipation and the like of an accelerator are combined, an electric adjusting and cooling structure is additionally arranged, and the anti-sputtering capacity of the variable circular structure is improved. The problem that a single-aperture current limiter cannot increase conductance and limit beam current at the same time can be well solved.

A pressurizing water supply system with a low-arranged water tank matched with a high-arranged regulation and storage bag type air pressure water tank in an overlying mode comprises a municipal pipe network, the water tank, a variable frequency pump set, a water supplementing main pipe, the bag type air pressure water tank, a pressurizing water supply main pipe and a user pipe network. A bag type air pressure water tank comprises a water supplementing branch pipe, a pressurizing water supply branch pipe, a water drainage pipe, an air supplementing opening and a security check device. A pressure sensor, an upper limit pressure switch and an ultraviolet lamp are sequentially arranged on the rear section of the pressurizing water supply main pipe in the water flow direction. According to the utility model, the low water tank is matched with the high air pressure water tank to replace a high water tank matched with the low water tank, so that the requirement on building load is lower; compared with a low air pressure water tank which is arranged at the water outlet end of the water supply pump set and used for preventing a water hammer, the high air pressure water tank has the advantages that the utilization volume coefficient is larger, and the internal pressure is smaller; the low water tank is matched with the high air pressure water tank to regulate, store and supply water for a user pipe network, so that the impact on a municipal water supply pipe network in a water peak period is reduced.

The application discloses a control method, in particular to a control method for dust removal of a high-wind-pressure down-the-hole drill, and belongs to the technical field of drilling control process of mine drilling equipment. The control method can effectively improve the dust removal effect, reduce the dust removal energy consumption and reduce the consumption of spare parts. The control method comprises the following steps: sequentially connecting a dust collection tank, a centrifugal separation vertical barrel and a dust collector into one through a dust collection pipeline; controlling a dust removal fan motor and a dust removal bin door motor of the dust collection tank through two reversing electromagnetic valves; when dust is collected, the dust removal fan and the dust removal bin door are opened after at least 2 seconds under the control of the dust removal fan motor and the dust removal bin door motor controlled by the reversing electromagnetic valves; and the four pulse electromagnetic valves of the dust collection tank are cyclically started at least 1 second apart to drive the dust removal compressed air into the dust removal filter core of the dust collection tank to remove the dust on the dust removal filter core, and the dust collection and the dust removal are set to be mutually exclusive.

The utility model discloses a low pollution treatment device relates to medical instrument and intelligent equipment technical field, including the shell, be equipped with N air outlet components on the shell, the shell is divided into not less than two sub -treatment space, every sub -treatment space with air outlet component one -to -one correspondence and fluidity intercommunication, and air outlet component can independently adjust the air pressure of corresponding sub -treatment space inside. Adjacent two sub -treatment space can be provided with transmission component, and transmission component can drive transmission thing to carry out one -way transmission between adjacent two sub -treatment space, and the transmission direction of one -way transmission is by the sub -treatment space of high air pressure to the sub -treatment space of low air pressure. The low pollution treatment device provided by the utility model can realize the difference of the air pressure in the sub -treatment space through the one -to -one correspondence between the air outlet component and the sub -treatment space, effectively solve the problem that the sample processing system in the prior art has higher cross -contamination risk in the automatic operation process.

The utility model provides a multi-fan-blade long-distance air supply device which comprises at least two fans, the fans are installed in a butt joint mode along the axes of the fans, and air inlets and air outlets of every two adjacent fans are correspondingly connected. The airflow flowing directions of the connected fans are the same. In the airflow flowing direction, airflow enters from the air inlet of the fan at the rear end and flows out from the air outlet of the fan at the front end, and the air outlet of the fan at the front end is provided with a fairing. And the central axes of the fan and the fairing are the same. The air supply device is provided with at least two fans, and each fan can independently control the rotating speed, so that the air supply speed, the air pressure and the air volume are adjusted, and the air supply efficiency is improved. In addition, due to the arrangement of the multiple draught fans, the large air outlet amount and high air pressure can be guaranteed under the condition that the rotating speed is low, high-rotating-speed air supply is avoided, and then noise and vibration caused by the high rotating speed can be avoided. The air supply efficiency is greatly improved; and the service life of the fan is prolonged.

The utility model relates to the technical field of emulsifying equipment, and discloses a quick temperature control device for producing cream, which comprises a vacuum emulsifying tank body, a protective shell is arranged on the outer side of the vacuum emulsifying tank body, a cavity is formed between the protective shell and the outer wall of the vacuum emulsifying tank body, an input pipe and an output pipe are arranged at the upper parts of the two sides of the cavity, and the input pipe is connected with the output pipe. A liquid discharging pipe is arranged at the bottom of the cavity, the top of the cavity is connected with an air storage tank through a communicating pipe, and valves are installed on the input pipe, the output pipe, the liquid discharging pipe and the communicating pipe. By opening the valve on the communicating pipe, compressed air in the air storage tank enters the cavity, steam or water in the cavity is rapidly discharged through high air pressure, only normal-temperature air is left in the cavity, the influence on emulsified liquid and cream is small, the temperature control effect is obvious, and the processing quality and the filling stability of the cream are improved.