316results about How to "Flexible and convenient installation" patented technology

The invention relates to the related technical field of behavior analysis simulation, and discloses a method of pedestrian monitoring and behavior recognition. The method comprises the following steps: S1, video acquisition is carried out on a somatosensory video device, and a corresponding depth image data stream and a color image data stream are acquired; S2, a system spatial coordinate-ground coordinate conversion matrix is calculated, ground projection is carried out on the depth information, a single human body is effectively segmented in the case of occlusion entering of multiple bodies, and non-human body targets are eliminated according to the ground projection; S3, three-dimensional depth information of a target body is acquired, and three-dimensional coordinates of 15 joints of the human body are positioned according to the depth information; S4, a human body three-dimensional model is built; S5, motion parameters of the human body are acquired; and S6, behavior features of the human body are acquired, and a processing result is fed back. The method and the system of the invention have the beneficial effects that the mounting is convenient and flexible; the pedestrian in-out conditions in a specified area is monitored and detected in a real time mode; and tracking and behavior recognition is carried out on a pedestrian entering.

The invention relates to a non-thermal plasma air-purifying reactor which comprises a housing, a positive electrode, a negative electrode, an external draught fan and a power supply, wherein the positive electrode is arranged between two adjacent negative electrode plates, is in insulating connection with the two adjacent negative electrode plates, and is equipped with an air inlet and an air outlet at the same time, wherein a distance between the positive and the negative electrodes is not smaller than twice a power-generation distance; the positive electrode is fixed on an insulation piece by a positive electrode connection piece; the insulation piece comprises insulation rings; the positive electrode comprises n metal belt groups which are fixed on the positive electrode connection piece, each metal belt group is arranged between two adjacent negative electrode plates, and the metal belt groups are formed by arranging oxidization-resistant metal wires or metal belts at equal distance in the same plane; (n+1) rows of negative electrode plates which are arranged in parallel with the ventilating direction of the reactor are fixed on the reactor housing by negative electrode connecting plates to form the negative electrode; the negative electrode plates are detachably arranged on the negative electrode connecting plates; through holes in which the insulation piece is embedded are formed on the negative electrode connecting plates; and the insulation rings are embedded in the through holes. The non-thermal plasma air-purifying reactor disclosed by the invention greatly improves the purifying effect.

The invention relates to a quantitative yielding node applicable to an underground engineering support lagging jack. The quantitative yielding node is formed by a lagging jack, a quantitative yielding device, a sleeve and a baffling ring; and the whole appearance shape of the quantitative yielding node is columnar or arc-shaped and the shape of the cross section is circular. The quantitative yielding node is mounted at a spandrel part, a vault part, a laneway side part or a bottom plate part of the lagging rack. The device is simple in structure and is convenient and flexible in installation; a yielding moment and a yielding amount are controllable and a plurality of yielding modes can be selected; the application range is wide; and with regard to various support lagging jacks with different shapes, sizes, cross section shapes and arc degrees, such as a mineral U-shaped steel lagging jack, circular steel pipe concrete lagging jacks with various section shapes and sizes and the like, the quantitative yielding node can be selected. The quantitative yielding node can be used for connecting the lagging jack for an underground engineering support and is particularly suitable for connecting a deep roadway support lagging jack.

The invention discloses a storing and managing method for an eclipse inserter based on Web service. The method comprises the following steps: 1) uploading the inserter; 2) storing the inserter; 3) downloading the inserter; 4) managing the inserter of the Web service; and 5) managing the inserter of a client. The invention has the following advantages: 1, searching efficiency of the inserter is high; 2, the download of the inserter is convenient; 3, the installation of the inserter is convenient and flexible; and 4, the management of the local inserter is convenient.

The invention discloses an on-line fabric defect detection device for warp knitting machines, which comprises a support assembly, a camera assembly, light sources, and a host control system. The on-line fabric defect detection device for warp knitting machines is characterized in that the light sources are a first light source and a second light source, the first light source is located over a fabric on a warp knitting machine, the supporting assembly comprises a guide way and a drive device, the drive device can drive the second light source and the camera assembly to synchronously slide to and fro along the guide way, the second light source and the camera assembly are located under the fabric on the warp knitting machine, and while sliding to and fro along the guide way, the camera assembly can acquire the image of the fabric; because the adopted moving shooting technique can shorten object distance, imaging quality can be ensured, and a good detection effect can be achieved. Sincethe moving shooting technique is adopted, the number of cameras is reduced, the on-line fabric defect detection device for warp knitting machines is convenient and flexible to mount, the structure ofthe device is simplified, the failure rate is low, multi-angle shooting can be carried out, the detection rate is greatly increased in comparison with the detection rate of the prior art, the false detection rate is greatly decreased, the labor intensity of workers is decreased, and the quality of products is greatly increased.

The invention provides an automatic industrial equipment work scheduling method. At least one server and at least one monitoring terminal are used cooperatively so that large-scale acquisition of real-time operation parameters of multiple sets of automatic industrial equipment can be realized, the real-time operation state and the real-time working progress of the automatic industrial equipment can be monitored, work load of multiple sets of automatic industrial equipment can be allocated in a balanced way, and the automatic industrial equipment which is abnormal in the working state or progress can be timely discovered and prompting can be performed through alarming. Encryption and decryption processing is performed on communication data between the servers and the monitoring terminals so that data integrity and security can be guaranteed. Installation and debugging are convenient and flexible, expansibility is high and large-scale popularization and application are convenient so that automation of work scheduling of cross-regional mass automatic industrial equipment can be realized.

The invention discloses the field of active noise control and particularly relates to an electromagnetic actuator for active noise control for amorphous alloy transformers. The electromagnetic actuator comprises a support disposed on the surface of a transformer. The top and bottom of the support are provided with circular inner steps corresponding to each other. An upper spring plate and a lower spring plate are disposed on the two inner steps respectively. An upper moving core, permanent magnet steel and a lower moving core are disposed between the upper spring plate and the lower spring plate sequentially from top to bottom. The upper spring plate, the upper moving core, the permanent magnet steel, the lower moving core and the lower spring plate are serially connected through bolts and are fixed together through nuts at two ends of the bolts, an upper coil and a lower coil are wound outside the upper moving core and the lower moving core respectively. After serially connected oppositely, the upper coil and the lower coil are connected with a control power supply. The electromagnetic actuator is simple in structure, low in manufacturing cost, adjustable in mode, convenient and flexible to install and applicable to transformer denoising.

The invention provides a work correcting method for automatic industrial devices. At least one server and at least one monitoring terminal are cooperated with each other, and balanced work load distribution for a plurality of automatic industrial devices is realized. The method can monitor all automatic industrial devices on a real-time basis. Once one or more automatic industrial devices fail, the work undertaken by the failed automatic industrial device / devices can be timely assigned to other normal automatic industrial devices to complete the work as fast as possible. High-efficient production process is ensured, and labor and time cost are effective reduced.

The invention discloses a safety protection mechanism for accidental moving of an elevator car. The safety protection mechanism comprises a triggering device, an executing device and a linking device, wherein the triggering device is used for recognizing an opening state of a door of the elevator car; the executing device is used for immediately locking the elevator car when accidental moving happens in the unclosed state of the door of the elevator car; the linking device is used for linking the triggering device and the executing device; and the triggering device adopts a mechanical triggering structure, the executing device adopts a locking block type locking structure, and the linking device adopts an electrical control structure. The safety protection mechanism can timely detect whether accidental moving happens to the elevator car and can immediately take safety protection measures to lock the car when the safety protection mechanism detects that accidental moving happens to the elevator car, so that the mechanism has important significance in protecting safety of elevator equipment and personal safety of a passenger; and particularly, the safety protection mechanism has the advantages of simple structure, safety, reliability, convenience and flexibility in mounting and the like, and has an obvious practical value in improving the safety of a conventional elevator.

The invention discloses a simple abutting device comprising an abutting cone, an abutting port base, a guiding cylinder and a self-locking mechanism, wherein the abutting port base is connected with the guiding cylinder; the guiding cylinder is matched and docked with the abutting cone; the abutting cone is fixed, locked and jointed by the self-locking mechanism fixedly arranged on the abutting port base, and the whole abutting cone after being docked is shaped like an evolution body, thus, the strength at high pressure is ensured. The abutting device provided by the invention is rapid and convenient to dock and can be applied to the abutting in various occasions; one or more connecting devices are connected through the matching of abutting ports of the abutting device to achieve the aim of working, the connected abutting device can be separated automatically, and the simple abutting device is convenient and flexible in mounting and wind is application range. The abutting device is simple in manufacturing, lower in cost and safe and reliable in use. When being applied to some special industries, the abutting device can be conveniently used through simple mounting, is not influenced by a working environment and is good in durability.

The invention belongs to the technical field of knife rest performance detection and discloses an online detection device for performance parameters of a numerical control knife rest. The problems that during current detection of performance parameters of a knife rest, it is needed to manually switch sensors, and the detection efficiency is low are solved. The online detection device for the performance parameters of the numerical control knife rest comprises a servo knife rest, an installing platform and a knife rest performance parameter online detection device; the knife rest performance parameter online detection device is composed of a knife rest detection device body and a vibration sensor automatic replacing device; the knife rest detection device body comprises a knife disk positioning precision and knife changing speed detection device, a knife disk vibration detection device, a knife rod vibration detection device, a knife rest running noise detection device, a knife rod deformation detection device, a centering performance detection and adjustment module and a synchronous rotation module; and the vibration sensor automatic replacing device comprises electromagnetic clamping claws, a servo motor and a worm gear and worm rotation table. According to the online detection device for the performance parameters of the numerical control knife rest, sensors for detection are designed onto the complete online detection device and are adjusted according to different knife rests, installing is convenient and flexible, and adaptability is high.

The invention relates to an infrared remote image identification and alarm device for a transformer station, and solves the problem that continuous accurate monitoring cannot be realized in an unattended transformer station. The infrared remote image identification and alarm device comprises infrared thermal imaging devices and visible light cameras in different positions which need monitoring of the transformer station, the infrared thermal imaging devices and the visible light cameras are connected with a multi-input video recorder, the multi-input video recorder is connected with a data processor, the data processor is connected to a server and a memory, and the data processor is also connected with an acousto-optic alarm device. The infrared remote image identification and alarm device for the transformer station has the advantages that high-voltage isolation is used, and the safety level is high; installation is convenient and flexible and is not influenced by the equipment structure and space; maintenance is not needed basically after successful installation; the devices are free of influence of environmental factors as dust and electromagnetic fields, and can work stably for a long term; and transmission is carried out in the wireless manner, wireless RF signals have certain capabilities of penetration and diffraction, image information can be collected in a higher frequency, and the data instantaneity is high.

The invention relates to a miniature fixed metal-armored switchgear, which comprises an instrument box, a mechanism case, composite apparatuses, current transformers and a grounding switch. A cabinet body comprises an upper cabinet body unit and a lower cabinet body unit. The composite apparatuses are arranged on the upper cabinet body unit. Upper side plates on the upper cabinet body unit are provided with a busbar wall bushing respectively. Isolating switch fixed contacts are poured in corresponding pedestals and positioned on the inner side of a wall body. Three-phase isolating switch moving contacts of the composite apparatuses correspond to the three-phase isolating switch fixed contacts. Three current transformers are overlapped and arranged on the lower cabinet body unit. The grounding switch and an arrester are arranged in the lower cabinet body unit. The composite apparatuses and the three current transformers divide the cabinet body into an upper main cable chamber, a middle vacuum switch chamber and a lower switching cable chamber. The miniature fixed metal-armored switchgear has switching-on, isolating and grounding functions, remarkable isolating fractures and a compact structure, and is convenient to mount; and mounting efficiency can be improved, a cabinet body mounting space can be reduced and cabinet body manufacturing cost can be decreased.

The invention discloses a method for purifying air. The method comprises the following steps of: making the air pass through a first-stage high-voltage electrostatic field for exposing genetic substances contained in harmful substances in the air in an electric field directly; introducing the air treated by using the first-stage electric field into a second-stage high-voltage pulse electric field; and striking off molecular bonds of the genetic substances to change genetic information by using high-energy particles formed by high-voltage pulse to crack and kill harmful substances so as to fulfill the aim of purifying the air. The method is on the basis of a cracking principle without generating an electron beam, strong electromagnetism or new photoelectric pollution, so the method is safeon an environment and a human body. Later maintenance is relatively simple; and maintenance cost is low. Simultaneously various microorganisms, bacteria and viruses can be killed, so the air can be purified completely. In conclusion, the method has the characteristics of low cost, long purification maintaining time, no harm or side effect on the human body, so the method can be performed when people are around.

The invention discloses a crosswalk identification alarm system based on RFID. The crosswalk identification alarm system based on RFID comprises a RFID reader, a vehicle-mounted display alarm device, an external circularly-polarized antenna, and a road-buried electronic label device. The RFID reader comprises a control unit module, a radio frequency module, an antenna interface, a power supply module 1, and a serial port communication module 1. The vehicle-mounted display alarm device comprises a power supply module 2, a single chip microcomputer, a display screen display screen, an alarm, and a serial port communication module 2. The road-buried electronic label device comprises an electronic label, a PC endurance board, and a silver reflective membrane. The system takes the initiative in acquiring the data of the electronic label close to the crosswalk with a RFID automatic identification method, fast acquires accurate distance between a vehicle and the crosswalk in real time, and provides a motor vehicle driver with positional warning and real-time alarm within effective distance in advance with a liquid crystal screen display and alarm manner. With visual and auditory information feedback, no matter the sight of the driver is shielded or no crosswalk advance identification is provided, the motor vehicle driver may know the effective distance between himself or herself and the crosswalk in order to timely take corresponding measures.

The invention discloses a punching sealing device for a composite sealed bearing, and belongs to the technical field of bearing manufacturing. The punching sealing device for the composite sealed bearing is characterized in that a punching device (3) comprises a conical punching head (6) with certain conical degree at the lower end; a sliding sleeve (7) is sleeved outside the sliding part at the upper end of the conical punching head (6); an elastic punching claw head (13) which can swell around when being extruded by the conical punching head (6) is sleeved outside the punching head part at the lower end of the conical punching head (6); the upper end of the elastic punching claw head (13) is connected with the lower end of the sliding sleeve (7); a plurality of claw heads capable of punching a steel-made dustproof cover (10) inside a bearing (9) to be punched are uniformly distributed at the circumference at the lower end of the elastic punching claw head (13); and a support sleeve (8) which can be supported at the outer circle of the bearing (9) to be assembled is sleeved at the outer circle of the elastic punching claw head (13). The punching sealing device for the composite sealed bearing can being used for punching and sealing the composite sealed bearing, is high in efficiency, has improvement on production automation, and is safe and reliable.

The invention discloses a high-sensitivity pickup and directional sound amplifying device and a method thereof. The high-sensitivity pickup and directional sound amplifying device comprises a power supply module, a signal processing module, a pickup and an ultrasonic transducer module. The high-sensitivity pickup and directional sound amplifying device and the method thereof are characterized in that the pickup is mounted on the side surface or back surface of the sound amplifying surface of the ultrasonic transducer module; The signal processing module is used for amplifying the weak electric signal of the pickup and is connected with the ultrasonic transducer module. The ultrasonic transducer module is used for receiving the processed electric signal and performing playing. The high-sensitivity pickup and directional sound amplifying device and the method thereof have advantages of small size, large sound pickup range, large sound amplifying coverage area, high uniformity of sound field, convenient and flexible mounting, and effective improvement for communication sound quality of handfree communication equipment.

The invention discloses a substrate clamping device for clamping substrates in an organic light-emitting display and a solar cell panel. The substrate clamping device comprises a driver, a bottom plate, a first clamping piece and a second clamping piece, wherein the first clamping piece and the second clamping piece are matched with each other. Both the first clamping piece and the second clamping piece are pivoted at one end of the bottom plate and are provided with clamping parts and pushing parts; a clamping region is formed between the clamping parts of the first clamping piece and the second clamping piece; a pushing region is formed between the pushing parts of the first clamping piece and the second clamping piece; the driver is arranged at the other end of the bottom plate; the output end of the driver is provided with a pushing piece corresponding to the pushing region; the driver drives the pushing piece to stretch into the pushing region to eject the pushing parts to rotate along an expanding direction; and the rotating pushing parts drive the clamping parts to rotate along a direction of reducing the clamping region so as to clamp the substrate in the clamping region. The substrate clamping device can overcome the disadvantages of the conventional manipulator that the manufacturing difficulty is great and the manufacturing cost is high; and the substrate clamping device has the advantages of compact structure, convenience for installation and easiness for maintenance.

The invention relates to a SIP-based intelligent emergency wireless calling system for a hospital. The intelligent emergency wireless calling system for the hospital mainly comprises a sickroom calling terminal, a first SIP wireless terminal, a fixed-line telephone, a second SIP wireless terminal, a mobile phone and a server, wherein the sickroom calling terminal is arranged in a sickroom; the first SIP wireless terminal and the fixed-line telephone are arranged in a nurse station; the second SIP wireless terminal and the mobile phone are arranged at the position of a doctor; the sickroom calling terminal is connected with the server in a wired or wireless manner; the first SIP wireless terminal and the second SIP wireless terminal are connected with the server through WIFI; the fixed-line telephone is connected with the server through a telephone line; and the mobile phone is connected with the server through a mobile network. The sickroom calling terminal supports a network digital mode and a traditional analog telephone line mode, if beds are added, wireless sickroom calling terminals can be mounted conveniently and flexibly, any wired or wireless terminals can simultaneously call a plurality of terminals by pressing a key, when one of the terminals transmits emergency demands, the other terminals can ring down simultaneously, and functions of recording, reminding, managing and the like can further be fulfilled.

The invention discloses a mould used for heat insulation parts of a door body of refrigerators and freezers and belongs to the technical field of moulds. The mould is designed for solving the problems of a complex production process, low production efficiency and high production cost of a foaming mould of the door body in the prior art. The mould includes an upper mould board and a lower mould board, wherein the shape of die cavities of the two mould boards are matched with a shell and a lining of a heat insulation part respectively. The mould also includes a locking mechanism, a stopping edge mechanism and a pneumatic pulling core mechanism. The locking mechanism includes a clamping ring and a clamping head which are respectively fixed on the upper mould board and the lower mould board respectively and are connected with releasable clamping buckles. The stopping edge mechanism includes a turnable stopping edge and an elastic part, wherein the top of the stopping edge mechanism is clamped to the upper mould board and the bottom of the stopping edge mechanism is hinged to the lower mould board. The elastic part is arranged on a contact surface of the stopping edge to the lower mould board and is used for flicking-off the stopping edge. An air cylinder of the pneumatic pulling core mechanism drives a pulling core to move in the stopping edge to form an inverted-buckle structure. The mould is free of a pre-installing process, is simplified in producing process, is increased in production efficiency and is reduced in production cost.

The invention provides a device for online monitoring the temperature of a contact of substation equipment, and belongs to the technical field of devices for monitoring the temperature of the substation equipment. In order to solve technical problems, the invention provides a device for conveniently monitoring the temperature of the contact of the substation equipment. According to the technical scheme, the device comprises a cross-district monitoring master station computer, monitoring center computers, bus gateways, temperature collectors and passive wireless temperature sensors. The cross-district monitoring master station computer is installed in a cross-district monitoring master station, the monitoring center computers are installed in a substation monitoring center, the bus gateways are installed in a distribution room, the temperature collectors are installed on a switch cabinet, and the passive wireless temperature sensors are installed on the surface of a monitored element. The cross-district monitoring master station computer is connected with the multiple monitoring center computers which are connected with the multiple bus gateways, the bus gateways are connected with the multiple temperature collectors through communication buses, and the temperature collectors are connected with the multiple passive wireless temperature sensors through a wireless radio frequency network. The device is suitable for power supply departments.

The invention discloses a safety protection device for preventing lift accidents. The safety protection device for preventing the lift accidents comprises a trigger device, an execution device and a linkage device, wherein the trigger device recognizes the open state of a lift car door; the execution device implements locking on a lift car immediately in the occurrence of accidental movement in the unclosed state of the lift car door; the linkage device enables the trigger device to link with the execution device; the trigger device adopts an electronic detection structure; the execution device adopts a latch segment type locking structure; the linkage device adopts a mechanical linkage structure. The safety protection device for preventing the lift accidents not only can detect whether the lift car generates the accidental movement or not in time, but also can implement a safety protection measure, i.e. locking on the lift car when detecting the accidental movement of the lift car, thereby being significant in protecting the safety of lift equipment and the personal safety of passengers; particularly, the safety protection device has the advantages of simple structure, safety, reliability, convenience and flexibility in installation and the like, thereby having remarkable practical values of improving and bettering the safety of an existing lift.

The invention relates to a miniaturized large-current handcart-type vacuum circuit breaker, which comprises a frame main body, three-phase vacuum circuit breaking poles, a synchronizing shaft and auxiliary contacts of the synchronizing shaft. The three-phase vacuum circuit breaking poles are arranged at the upper part of the frame main body. The synchronizing shaft and the auxiliary contacts of the synchronizing shaft are arranged in a metal frame. Each of the three-phase vacuum circuit breaking pole is provided with a vacuum arc extinguishing chamber, an insulated pull rod and a permanent magnet operating mechanism which are longitudinally and sequentially arranged from top to bottom. The vacuum arc extinguishing chamber comprises an upper wiring terminal, a lower wiring terminal, a corrugated pipe and a ceramic chamber. The corrugated pipe is arranged outside the ceramic chamber and is connected with the lower end of the ceramic chamber. One end of the insulated pull rod is connected with a movable contact. The movable contact is matched with the corrugated pipe. The other end of the insulated pull rod is connected with the permanent magnet operating mechanism. The three-phase permanent operating mechanisms of the three-phase vacuum circuit breaking poles are respectively connected with the synchronizing shaft. The miniaturized large-current handcart-type vacuum circuit breaker has the advantages of small size, light weight, long service life, maintenance-free, high flexibility and convenience in use.

The invention discloses a monitoring apparatus and a monitoring system. The monitoring apparatus comprises a microprocessor module used for performing operation task scheduling management; a shooting module used for shooting an onsite video; a wireless communication module connected with the microprocessor module for performing wireless communication with a background device and transmitting video data; a video analysis module connected with the microprocessor module for processing and analyzing shot video data; and a memory connected with the microprocessor module for storing operation data. The monitoring system is arranged at a front end, the monitoring apparatus in a monitoring field is internally provided with each function module, processing and analyzing of the video data are completed at the front end, flexible and efficient intelligent control of the field is realized, and the monitoring apparatus is high in integration and communicates with the background device in a wireless mode. Compared to a conventional safety protection monitoring system, the monitoring system is simple in structure, convenient to install, flexible to use and can better satisfy the monitoring demand of a power construction area.

The invention discloses a micro-vibration energy-consumption viscoelastic buckling restrained brace. The micro-vibration energy-consumption viscoelastic buckling restrained brace comprises energy-consumption inner core plates, viscoelastic material bodies, buckling restrained parts and restrained force transmission parts, wherein one ends of the energy-consumption inner core plates are arranged in the restrained force transmission parts; the middle sections of the energy-consumption inner core plates are arranged in the buckling restrained parts, and a gap of 1mm-2mm exists between the middle section of each energy-consumption inner core plate and the corresponding buckling restrained part; the other ends of the energy-consumption inner core plates extend out of the buckling restrained parts; the upper and lower surfaces of each energy-consumption inner core plate, at one end of the corresponding restrained force transmission part, are fixedly and respectively connected with a viscoelastic material body; and the viscoelastic material bodies are fixedly connected with the inner surfaces of the restrained force transmission parts. The brace can consume energy under the action of small seisms or wind vibration and dissipate energy of an earthquake under the action of a middle or large earthquake and also supplies certain bracing rigidity to a structure, thus expanding the application of the buckling restrained brace to a wind sensitive structure.

The invention discloses an environmentally friendly and rapid mounting construction method for rapidly mounting shield tunnel electromechanical equipment pipelines. A segment bolt penetrates through prefabricated hole positions in shield segments to connect and fix the adjacent shield segments; by using parts, exposed out of the shield segments, of the segment bolt, assembled lugs are mounted on the shield segments; and an arc toothed external slide groove penetrates through the cavity of the assembled lug to be formed in the internal side of an arc of the shield segment in the circumferentialdirection of the shield segment. As all parts are mounted in an assembled manner without drilling holes in tunnel segments, the construction speed is high, the integrity of a tunnel structure is notdestroyed, the environmentally friendly and rapid mounting construction method replaces a traditional perforation and steel implantation process, the service life of the tunnel structure is prolonged,the mounting mode is comparatively flexible and convenient, the tunnel structure can be arranged according to actual needs, and the construction and maintenance cost can be reduced; and according tothe environmentally friendly and rapid mounting construction method for rapidly mounting the shield tunnel electromechanical equipment pipelines, waste water, waste gas and waste slag are not generated in the construction process, noise pollution and dust pollution are not generated in the construction process, and the health and safeties of construction personnel are protected.

The invention relates to processes of absorbing, washing and treating waste gas in the technical field of chemical industry, oil refining and environmental protection and in particular relates to a gas absorption tower and an application method thereof. The gas absorption tower comprises a gas absorption device (1), wherein the gas absorption device (1) is provided with a pore plate (7) and more than three gas absorption tubes (8); opening ends of the gas absorption tubes (8) are fixed in mounting holes of the pore plate (7); absorption holes are uniformly formed in the gas absorption tubes (8); the pore plate (7) is used for partitioning the gas absorption device (1) into a gas absorption area (9) and a to-be-absorbed gas area (10). As the gas absorption tower is used for absorbing the gas, the contact area between a gas phase and a liquid phase in unit volume can be increased; the gas absorption is improved and the production efficiency is improved; the gas absorption tower is simple in structure, convenient and flexible to mount, environmental friendly and economical; the requirement of variety in industrialized application are met; the requirement quantity of absorption liquid is reduced; the production cost is reduced; discharged gas can be fully purified during treating of the waste gas.

The invention discloses a gearbox-driven vacuum braking device which comprises a vacuum pump, a gearbox and a transfer box, wherein the transfer box is used for connecting the vacuum pump and the gearbox, the transfer box is installed on the power takeoff opening of the gearbox, the transfer box and the vacuum pump are integrated into a whole, or the transfer box and the vacuum pump are independently installed. On the basis of a traditional vacuum-assisted braking system, one vacuum pump is additionally arranged on the gearbox, a more reliable vacuum degree is supplied by adopting the gearbox-driven vacuum pump, and the device has simple and reasonable structure as well as convenient and flexible installation, avoids the situations that vacuum is adopted as the braking energy source of a vehicle and insufficient vacuum occurs when only one generator-driven vacuum pump exists, greatly increases the vacuum supplying speed of the braking system, guarantees vacuum supply, and improves the safety performance of the whole vehicle.