13results about How to "Guaranteed negative pressure" patented technology

The utility model relates to the technical field of polishing, and particularly discloses a negative pressure suction head of a polishing device, which comprises an outer cylinder, an inner cylinder and a bearing. The outer cylinder is provided with a containing groove used for installing the inner cylinder and a negative pressure source connector used for being externally connected with a negative pressure source. The inner cylinder body is rotatably arranged in the containing groove, the inner cylinder body is provided with a mounting groove for mounting a polishing clamp, the side wall of the mounting groove is provided with a sealing structure used for being sealed with the polishing clamp, the groove bottom of the mounting groove is provided with a first through hole used for being communicated with a pipe cavity of the polishing clamp, and the first through hole is communicated with the negative pressure source connector; the bearing comprises an inner ring and an outer ring which are hermetically connected, the inner ring is hermetically and fixedly connected with the inner barrel, and the outer ring is hermetically and fixedly connected with the outer barrel. According to the negative pressure suction head, stable rotation of the polishing clamp and reliable connection between the polishing clamp and a negative pressure source can be kept, meanwhile, use of lubricating oil is avoided, and the stability and safety of the whole polishing process are guaranteed. The utility model further discloses a polishing device which also has the technical effects.

The invention provides an LNG, biomass power plant and data center energy collaborative utilization system which comprises a data center, the data center is composed of a cooling tower, electric equipment and a cooling pipeline of the electric equipment, the cooling pipeline communicates with the cooling tower, and the cooling pipeline is used for cooling the electric equipment; the biomass power generation assembly is electrically connected with the electric equipment through an electric wire, and the biomass power generation assembly is used for providing electric energy for the electric equipment; the reclaimed water recycling assembly is arranged between the biomass power generation assembly and the cooling tower, and the reclaimed water recycling assembly is used for purifying sewage generated by the biomass power generation assembly and then conveying the purified sewage to the cooling tower; the data center cold and heat energy conversion assembly communicates with the cooling pipeline and is used for cooling water in the cooling pipeline; and the biomass power plant cold and heat energy conversion assembly is arranged on the biomass power generation assembly and used for recycling the steam heat energy after the steam heat energy passes through the LNG condensation water medium. The problems of large energy loss and large resource consumption in the background technology are solved.

The utility model provides a kind of air leakage screw conveyer device, the utility model relates to screw conveyer mechanism technical field, including screw conveyer assembly, driving mechanism, protection subassembly and negative pressure component;The screw conveyer assembly includes the shell extending along left and right direction and the screw conveyer rod piece extending along left and right direction;By the setting of negative pressure component, in negative pressure component, shell and negative pressure storehouse interior pressure is lower than external atmospheric pressure, if feeding and discharging place are completely open, outside air will rush in a large amount, it will lead to unable to maintain the required vacuum degree, and the air that rushes in can interfere with the stable flow of material, even cause blockage, and in the design, second helical blade segment cooperates pressure door, and a dynamic material seal is formed in shell interior jointly.The material with high filling degree itself becomes the barrier to prevent air from entering, achieving the effect of physical sealing, thereby ensuring the negative pressure state inside the system.

The invention discloses an ash bin anti-blocking temperature-control humidity-control automatic adjusting system and method, the system comprises an ash bin, a first air outlet device, a second air outlet device and an air inlet heating device, an air outlet of the air inlet heating device is connected with the ash bin, and the air inlet heating device is used for inputting heated gas into the ash bin from the outside of the ash bin; air inlets of the first air outlet device and the second air outlet device are connected with the ash bin; the first air outlet device is used for outputting gas in the ash bin out of the ash bin, so that fly ash fluidity is kept in the ash bin, and negative pressure is generated; the flow of the second air outlet device is larger than that of the first air outlet device, and the second air outlet device is used for outputting gas in the ash bin out of the ash bin when the air inlet heating device is started, so that negative pressure is kept in the ash bin. Heat preservation and dehumidification in the ash bin can be achieved, the fluidity in the ash bin is ensured, it is avoided that fly ash caking in the ash bin influences the quality of fly ash chelating and curing, and negative pressure in the ash bin can be continuously ensured in the adjusting process.

The utility model discloses an odor collection and treatment device, and belongs to the field of odor treatment. Comprising an odor collection area; the catalysis area is communicated with the odor collection area through an air pipe; the deodorization area is communicated with the catalysis area through a gas pipe; the pressure monitoring sensor is arranged on the gas pipe and is used for monitoring the concentration of the odor in the gas pipe; the variable-frequency axial flow fan is arranged on the gas pipe and is used for adjusting the rate of the odor; and the controller is electrically connected to the pressure monitoring sensor and the variable-frequency axial flow fan and used for receiving signals provided by the pressure monitoring sensor and controlling the rotation rate of an impeller of the variable-frequency axial flow fan. The odor collection and treatment device has the beneficial effect that the probability that odor overflows from equipment is reduced.

The utility model discloses a dust removal device of a movable discharging trolley and the movable discharging trolley, and belongs to the technical field of environmental protection machinery. Comprising a dust removal cover, a dust remover, a water seal tank and a water seal inserting plate, one end of the dust removal cover is arranged on a discharging pipe of the movable discharging trolley in a sleeving mode, and a smoke channel is formed by the dust removal cover and the side wall of the discharging pipe; the dust remover is communicated with the dust removal cover through a flue gas channel; the water seal tanks are horizontally arranged in the moving direction of the movable discharging trolley and located on the two sides of the discharging pipe respectively. The water seal inserting plates are arranged on the two side walls of the dust removal cover in the length direction, located at the other end of the dust removal cover and extend into the corresponding water seal grooves; the other end of the dust removal cover is connected with dustproof soft curtains and sealing soft curtains which are vertically arranged, the dustproof soft curtains are located on the two sides of the dust removal cover in the length direction, and the sealing soft curtains are located on the two sides of the dust removal cover in the width direction. Totally-closed dust discharging can be achieved, the dust removal effect is good, and the problems that existing dust removal equipment is serious in smoke overflow and poor in dust removal effect are solved.

The utility model relates to the technical field of snow removing equipment, and discloses a convenient efficient electric snow removing device for a roof, which comprises a device base, wheels are mounted at the bottom of the device base, a snow storage tank and a vacuumizing device are mounted on the device base, the snow storage tank is connected with the vacuumizing device through a vacuumizing pipeline, and the vacuumizing pipeline is connected with the snow storage tank. A heating device is arranged on the lower portion of the snow storage tank, a snow suction main pipe is connected to the side wall of the snow storage tank, a snow suction opening is formed in the lower end of the snow suction main pipe, a water drainage pipeline is connected to the bottom of the snow storage tank, and a one-way valve is installed on the water drainage pipeline. The roof snow removing device can effectively reduce damage of a snow removing tool to a roof surface layer and improve the working efficiency of roof snow removing.

The utility model relates to the technical field of non-ferrous metal smelting, and discloses a smoke cooling device for a copper smelting rotary anode furnace, which comprises a smoke mixing chamber outlet flue copper water jacket, a horizontal flue copper water jacket, a three-way copper water jacket and a vertical flue copper water jacket which are communicated in sequence, the smoke mixing chamber outlet flue copper water jacket, the horizontal flue copper water jacket, the three-way copper water jacket and the vertical flue copper water jacket are each provided with a plurality of water inlets and water outlets, and the water inlets and the water outlets are connected through an external water tank. According to the utility model, the flue water jacket is introduced to replace flue gas cooling equipment such as a spray cooler, so that the content of water vapor in the flue gas of the anode furnace can be reduced, the problems of corrosion of the flue and facilities and the like caused by a large amount of acid-containing condensed water in the main flue gas pipeline of the anode furnace are avoided, the negative pressure required by normal production of the system is ensured, and the production load is improved. In addition, water for the water jacket of the flue is circulating water and can be reused, so that the purpose of saving energy can be achieved.

A continuous cutting laser processing equipment following conveying device comprises a frame and an upper movable crossbeam on the frame, wherein two parallel upper crossbeam left passive rollers and an upper crossbeam right passive roller are arranged on the upper movable crossbeam, a plurality of frame passive rollers are arranged around the frame, a lower movable crossbeam is arranged under the frame, the connection mode and driving mode of the lower movable crossbeam are consistent with those of the upper movable crossbeam, two pairs of mutually parallel lower crossbeam passive rollers are arranged on the lower movable crossbeam, an active roller is arranged in the middle of each pair of lower crossbeam passive rollers, an identical synchronous gear is fixed on the input shafts of the two active rollers respectively, the two synchronous gears can mesh together for transmission, the input shaft of one active roller passes through the synchronous gear and is connected to the output shaft of the active roller reducer by a key, and a belt is wrapped around the frame passive roller, the upper crossbeam left passive roller and the upper crossbeam right passive roller, the lower crossbeam passive roller, the first active roller and the second active roller in a set direction to connect them together.

The invention provides a Chinese patent medicine storage tank sterilization process and equipment, and relates to the field of Chinese patent medicine sterilization. The Chinese patent medicine storage tank sterilization equipment comprises a cabinet body and a sealing door mounted on the cabinet body, and further comprises an inner cabinet, the inner cabinet is fixed in the cabinet body in a suspended manner, a plurality of placement plates are movably inserted into the inner cabinet, and the inner cabinet can be sealed after the sealing door is closed on the cabinet body. A high-pressure steam generator and an ethanol gas generator are installed between the inner cabinet and the left interlayer and the right interlayer of the cabinet body respectively, a stepped bowl is fixedly installed on the inner bottom wall of the cabinet body, and an opening in the upper end of the stepped bowl is located in the cabinet body and flush with the inner bottom wall of the cabinet body. According to the Chinese patent medicine storage tank sterilization process and equipment, the gas circulation assembly is arranged, sterilization work can be rapidly achieved on the Chinese patent medicine storage tank, the complete sterilization effect can still be achieved when ethanol steam flows, the flowing steam can take away residual ethanol gas, and the sterilization rate is greatly increased.

The invention relates to the technical field of unloading dust collecting equipment, in particular to a dust collecting device of a movable unloading vehicle, which comprises a dust removing fan, an anti-blocking air dispersing device is fixedly mounted at an air port of the dust removing fan, and a direction adjusting assembly is arranged at one end of the anti-blocking air dispersing device far away from the dust removing fan. An opening and closing device capable of adjusting the size of the air inlet and the air flow speed is arranged at the end, away from the anti-blocking air scattering device, of the direction adjusting assembly, a folding and unfolding support used for controlling folding and unfolding of the opening and closing device is arranged between the opening and closing device and the direction adjusting assembly, and a detachable dust collecting bag is arranged between the opening and closing device and the anti-blocking air scattering device in a sleeved mode. According to the dust collecting device of the movable discharging car, the area of the air leakage opening can be controlled, negative pressure in the dust cover is guaranteed, dust is effectively prevented from overflowing, the dust collecting direction is adjusted, and blocking can be effectively prevented.

The invention discloses a device, a machine tool and a method for restraining composite material drilling damage through negative pressure, solves the problem that in the prior art, damage is prone to occurring in the composite material machining process, and has the beneficial effect of avoiding composite material damage, and according to the specific scheme, the device for restraining composite material drilling damage through negative pressure comprises a shell; the shell supports the cutter clamping piece, the cutter clamping piece is used for installing the hollow drill, the hollow drill is exposed out of the shell, the cutter clamping piece drives the hollow drill to rotate relative to the shell, the shell is independently connected with the vacuum generator and the air generator, the shell is hollow, and the cutter clamping piece is communicated with the interior of the shell and the interior of the hollow drill. When the vacuum generator works, air at the position of the hollow drill is exhausted through the shell and the cutter clamping piece so that upward pulling force can be provided for a composite material to avoid drill hole damage, and air generated when the air generator works is used for blowing away cut materials at the position of the hollow drill.