54results about How to "Large pumping capacity" patented technology

A packaging structure including at least one cavity wherein at least one micro-device is provided, the cavity being bounded by at least a first substrate and at least a second substrate integral with the first substrate through at least one bonding interface consisting of at least one metal or dielectric material, wherein at least one main face of the second substrate provided facing the first substrate is covered with at least one layer of at least one getter material, the bonding interface being provided between the first substrate and the layer of getter material.

The invention discloses an anhydrous sodium sulfate preparation method and an anhydrous sodium sulfate preparation apparatus, and belongs to the anhydrous sodium sulfate preparation field. The method sequentially comprises the following steps: processing a raw sodium sulfate solution to prepare a fine sodium sulfate solution; dehydrating the fine sodium sulfate solution to prepare dry sodium sulfate; and processing the dry sodium sulfate to prepare finished sodium sulfate. The preparation apparatus comprises a nitrate solution reaction clarifier, a slurry clarifier, a non-valve filter, a rotary drum vacuum filter, a fine sodium sulfate solution storage device, a steam generation device, a multiple-effect evaporator, a centrifuge, an atmospheric condenser, a cooling tower, a cycle water pump, a Roots water ring vacuum set, a hot air drying device, a convey device, a pneumatic elevator, a nitrate storage bin and a cloth bag deduster. According to the invention, the sodium sulfate solution refining efficiency is high, the sodium sulfate solution quality is good, and the sodium sulfate solution is fully recycled; and the heat energy utilization rate in the production process is high, the production energy consumption is low, and the finished sodium sulfate has a fast convey speed and a high output.

The invention relates to an operating method of a powder material packing scale, which is suitable to solve the problems that the packaging bag is unable to be vertically placed and the rated quantity of materials are difficultly put into the bag within a normal time when powder materials with high gas contents enter a packaging bag; and the dust is easy to fly everywhere, after the packaging equipment is used, a better effect is obtained, and the efficiency is improved. The packaging scale comprises a degassing blanking device which is arranged on an outlet at the bottom of a hopper, an air suction blowing combination valve group and a vacuum pump which are used for degassing, blowing and blockage removing and are connected with the degassing blanking device, and a pneumatic bag-clamping lifting mechanism which is arranged at the bottom of the degassing blanking device; and the degassing blanking device comprises a blanking barrel, integrated microporous filter elements are arranged at both the inner wall and the outer wall of the blanking barrel, and the pore diameters of the filter elements can be set according to the sizes of material particles, and can range between 50 mum and 1mum. Ports which are communicated with a clearance between the inner wall of the blanking barrel and the inner filter elements are arranged in the outer wall of the blanking barrel; and the ports are connected with air suction blowing combination valves.

The invention discloses a day-and-night photovoltaic pump system with no storage battery and belongs to the technical field of solar photovoltaic and fuel chemical energy usage. The system mainly comprises a solar-thermal power generation system, a variable frequency controller, an alternating current motor, a water pump, a water tank, a low water level sensor, a medium water level sensor and a high water level sensor, wherein the solar-thermal power generation system comprises a butterfly type reflector, a secondary lens, a disk radiator, a filter layer, a thermal infrared light battery, a reflector, a combustion chamber and a cooling device. The efficiency of the solar-thermal power generation system is higher than that of an ordinary solar photovoltaic power generation system, and same output power needs few photovoltaic batteries, and accordingly, the cost of the whole system is reduced. The photovoltaic pump system with no storage battery is environment friendly and can operate day and night, and the defect that the photovoltaic pump system with no storage battery cannot pump water in rainy days or at nights is overcome. Simultaneously, the photoelectric conversion efficiency of the photovoltaic batteries in prior photovoltaic pump systems with no storage battery is improved and the size of the water tank is reduced.

The invention discloses a method for heightening two-stage roasting arsenic collecting efficiency and special equipment. The method comprises the following steps: furnace gas, which is generated by one-stage roasting, is dedusted by means of reducing temperature through a two-stage whirlwind furnace cooler, and is again dedusted by means of removing electricity with furnace gas which is generated by two-stage roasting and be dedusted by means of reducing temperature through a one-stage whirlwind furnace cooler; the temperature of the dedusted furnace gas is reduced through a quench tower, and the arsenic of the dedusted furnace is recycled through a cloth bag arsenic collector; the remaining furnace gas is used for producing aid; and the dust and roasting slag, which are collected by the furnace cooler by means of the one-stage roasting, are put into the two-stage roasting. The equipment comprises a one-stage roasting furnace (1) and a two-stage roasting furnace (5). The equipment is characterized in that the one-stage roasting furnace (1) is connected with the two whirlwind devices and the furnace cooler by means of sealing in sequence; the bottom end of the one-stage roasting furnace (1) is communicated with the two-stage roasting furnace (5); the two-stage roasting furnace (5) is connected with one of the whirlwind devices and the furnace cooler by means of sealing in sequence; the bottom of the two-stage roasting furnace (5) is connected with a water quenching system; and the furnace cooler is communicated with an electric deduster (8), a cold collecting tower (9) and a cloth bag arsenic collecting device (10) in sequence. The invention has high arsenic collecting efficiency, does not frequently stop vehicles to clean the cloth bag, and increases productivity effect.

The invention discloses a method for improving the efficiency of a gas drainage liquid ring vacuum pump through a macromolecular drag reduction agent, and belongs to methods for improving the efficiency of liquid ring vacuum pumps. The method comprises the steps that the quantitative macromolecular drag reduction agent is prepared and poured into a circulating pool continuously through a drag reduction agent filling machine till the optimal drag reduction concentration is reached; the gas drainage liquid ring vacuum pump is operated, and the macromolecular drag reduction agent serves as a working medium of the liquid ring vacuum pump to conduct gas drainage; and the viscosity and the liquid level of the drag reduction agent as well as the operation performance of the gas drainage liquid ring vacuum pump are monitored in real time, accordingly, the quantitative drag reduction agent is supplemented in the fixed time, and the drag reduction performance and the liquid level of the drag reduction agent are maintained. The macromolecular drag reduction agent is a polyacrylamide solution with the concentration being 0.1-0.5%. Through the method, the efficiency of the liquid ring vacuum pump can be substantially improved, operation energy consumption can be reduced, and the maintenance period and the service life of the liquid ring vacuum pump are obviously prolonged.

The invention relates to a landfill gas collecting well which is used for collection of garbage landfill gas. A pre-buried elevating landfill gas collecting well provided by the invention comprises a gas collection pipe and an exhaust pipe, wherein the exhaust pipe is installed at the upper part of the gas collection pipe and is used for connecting a branch exhaust pipe to realize gas collection, a well mouth valve is arranged on the exhaust pipe and is used for controlling negative pressure and collection flow of the landfill gas collecting well, the gas collection pipe is composed of an outer gas collection pipe and an inner gas collection floral pipe, the outer gas collection pipe is composed of an outer gas collection solid pipe at an upper part and an outer gas collection floral pipe at a lower part, and the inner gas collection floral pipe is arranged in the outer gas collection pipe. According to the invention, the pre-buried elevating landfill gas collecting well has a simple structure and reasonable design, the characteristics of a simple process, convenient construction, a fast well forming speed, a mature construction process, strong environmental adaptability and a good gas collection effect are obtained, and low cost and economic benefits are achieved.

The invention discloses a 660MW-grade primary intermediate reheat extraction steam turbine unit relating to an extraction steam turbine unit and aims at solving the problems of high net coal consumption rate, low energy utilization rate and pollutant discharge increment of the existing thermal power generating unit equipment. A front bearing box, a high-medium-pressure cylinder, a 2 # bearing box, a low-pressure cylinder and a 3# bearing box are sequentially arranged; two high-pressure main steam regulating valves and two medium-pressure reheat regulating combined valves are respectively located at the left and right sides of the high-medium-pressure cylinder; and middle-row steam is introduced to the low-pressure cylinder through a communicating pipe. Due to the adoption of a communicating pipe structure with a hydraulic control butterfly valve, double steam extraction openings are formed in the lower part of the middle row of the high-medium-pressure cylinder, so that the steam extraction capacity can be regulated to be high enough, and furthermore heating demands in winter can be met. The 660MW-grade primary intermediate reheat extraction steam turbine unit is ultra-supercritical and has the advantages of primary intermediate reheat, single shaft, two-cylinder and two-row steam, double extraction, eight-stage back-heating steam extraction and steam condensation. The 660MW-grade primary intermediate reheat extraction steam turbine unit is suitable for pure-condensation power generation in a non-heating period and combined heat and power generation in a heating period.

The invention discloses a negative pressure pulsation therapeutic instrument, comprising an air exchanging chamber, an airbag and a water accumulation bottle, wherein the air inlet of the water accumulation bottle is connected with a nostril end through a rubber pipe, and the air outlet of the water accumulation bottle is connected with an air inlet pipe of the air exchanging chamber through a rubber pipe. The therapeutic instrument is characterized by also comprising a rotor, a stator, a coil and a magnetic shoe; the airbag is a cylinder with outer wall being the shape of corrugation and is used for generating negative pressure pulsating air flow; and the air exchanging chamber and the airbag are communicated from front to back and meshed together at edges to form a closed air flow room; the rotor is connected with the airbag, and drags the airbag to reciprocate along the axis direction, so that the airbag is stretched or shortened. The device has the characteristics of large air suction volume, high efficiency, low noise, large negative pressure and the like, and is used for treating respiratory diseases of acute and chronic bronchitis, bronchial asthma, bronchial pneumonia, rhinitis, pneumonoconiosis and the like.

The present invention relates to an evacuation tube. It includes the following several portions: sleeve, piston placed in the sleeve, tube mouth, pulling rod and handle. Besides, it also includes an air-resisting piece. Said invention is simple in structure, and can quickly evacuate the package container.

The invention provides a vertical vacuum crystallization device. The vertical vacuum crystallization device comprises a crystallization part and a condensing part, wherein the crystallization part islocated below the condensing part and comprises a crystallization section cylinder, an outer flow guiding cylinder, a central flow guiding cylinder, a bottom stirrer, a secondary stream rising cylinder, a circulating cylinder, an inner circulating channel and an outer circulating channel; and the condensing part comprises a condensing section cylinder as well as an overflow weir, a first water baffling cap, a liquid baffling ring and a second water baffling cap which are sequentially arranged in the condensing section cylinder from top to bottom. The vertical vacuum crystallization device hasthe advantages that a heat exchanger does not need to be replaced, and the problems that the inner surface is seriously scaled, and the scale is difficult to clean are prevented; an vacuum processingpressure is similar to a solution steam partial pressure, and the operation is relatively stable; the crystallization part and the condensing part form equipment, so that a secondary steam flow path is shortened, and the leakage of leaking points caused due to the connection of pipelines is eliminated; by utilizing the inner circulating channel, the high-saturability region in the crystallizationpart is eliminated, and the saturability at each site is relatively uniform and low; and by utilizing the outer circulating channel, the excess crystallization is eliminated; and meanwhile, products with relatively narrow particle size distribution can be elutriated.

The invention discloses a vacuum pump with a special-shaped cavity; the vacuum pump comprises a stator and a rotor; wherein the stator is a cylinder body provided with a special-shaped cylindrical-surface inner cavity, an inlet and an outlet; the special-shaped cylindrical-surface inner cavity is formed by two arc surfaces and two non-arc surfaces; the rotor is formed by a rotor body and two pairs of combination slide plates; the rotor body is a circular cylinder body provided with a transmission shaft, a centering shaft and a crossed guide groove; the two pairs of combination slide plates are vertically arranged in the guide groove; a cover plate is a flat plate provided with a bearing hole; the two end faces of the stator are matched with the cover plate to form into a sealing cavity; the rotor is matched with the bearing hole on the cover plate by the transmission shaft and the centering shaft; the external drive couple drives the rotor to rotate by the transmission shaft. When the rotor rotates, the combined arc surface of the special-shaped cylindrical-surface inner cavity matches with the rotor to control the two pairs of combination slide plates to slide alternatively to intake air through the inlet and press air out through the outlet, thereby forming negative pressure in the inlet area.

The invention relates to a control system, which is characterized in that a concrete pump drives a reversing electromagnetic valve of a cylinder to reverse after time is delayed for 500ms to 1000ms when the reversing electromagnetic valve receives a signal transmitted from a magnetic switch, an emergency pumping power control oil inlet port is connected with an emergency arm support operation preselector valve, a port P of the emergency arm support operation preselector valve is connected with a diesel driving high-pressure water pump preselector valve, a motor normal driving arm support, a supporting leg and cable reel operation function control oil inlet port, a port P of the diesel driving high-pressure water pump preselector valve is connected with a steering priority control valve, a port P of the steering priority control valve is connected with a brake priority control valve, and a port P of the brake priority control valve is connected with a hydraulic oil pump which is arranged on a chassis and used for controlling braking and steering functions. In another technical scheme, the invention provides self-travelling construction machinery with the control system. The control system and the self-travelling construction machinery meet requirements of concrete pumping, simultaneously are simple in structure of mechanisms, and save cost.

The invention discloses a cup holder for an automobile. The cup holder comprises a cup holder body with an opening in the upper end and a mini-type sucking pump. The cup holder body comprises a base and a peripheral wall. An annular silicon rubber case is arranged at the upper portion on the inner surface of the peripheral wall. When a cup is placed in the cup holder body, the inner edge of the annular silicon rubber case makes contact with the outer wall of the cup. One end of an air inlet pipe is located in an automobile air conditioner air outlet, and the other end of the air inlet pipe is communicated with an air inlet of the mini-type sucking pump. One end of an air outlet pipe is communicated with an air outlet of the mini-type sucking pump, and the other end of the air outlet pipe is communicated with an inner cavity of the cup holder body. The cup in the cup holder can be cooled or heated through output air of an automobile air conditioner, meanwhile, the output air of the automobile air conditioner cannot be blocked, and the cooling efficiency and heating efficiency of the cup are high.

The invention provides a pressure control system comprising a vacuum chamber, an air source, multiple grades of vacuum pump groups and a control unit. The vacuum chamber communicates with the air source through an intake pipeline. The intake pipeline is provided with an intake valve. The vacuum chamber communicates with the multiple grades of vacuum pump groups through an exhausting pipeline. A high vacuum valve is arranged on the exhaust pipeline. The intake valve, the high vacuum valve and the multiple grades of vacuum pump groups are connected with the control unit. The control unit controls the pumping speeds of the multiple grades of vacuum pump groups according to the target control pressure, so that pressure adjustment in a vacuum furnace is achieved. The invention provides a pressure control method. The pressure control method comprises the steps that the target control pressure is obtained; according to the target control pressure and a preset value, a high-pumping-speed pumpgroup and a low-pumping-speed pump group are controlled to started or stopped, if the target control pressure is higher than the preset value, the high-pumping-speed pump group is stopped, and the low-pumping-speed pump group is started, and if the target control pressure is lower than a preset value, the high-pumping-speed pump group and the low-pumping-speed pump group are both started. By the adoption of the pressure control system and the pressure control method, the change of the intake amount does not need to be changed, the cost is low, and the pressure control range is large.

Disclosed is a cup holder used in an automobile. The cup holder used in the automobile comprises a cup holder body and a miniature air pump, wherein the upper end of the cup holder body is open. The cup holder body comprises a base and a circumferential wall. One end of an air inlet pipe is located in an automotive air conditioner air outlet, and the other end of the air inlet pipe is communicated with an air inlet of the miniature air pump. One end of an air outlet pipe is communicated with an air outlet of the miniature air pump, and the other end of the air outlet pipe is communicated with an air inlet formed in the circumferential wall of the cup holder body. The air inlet is formed in the lower portion of the circumferential wall of the cup holder body, and one side wall of the air inlet is tangent with the inner surface of the circumferential wall of the cup holder body. According to the invention, a cup in the cup holder can be cooled or heated through outlet air of an automotive air conditioner, the outlet air of the automotive air conditioner cannot be blocked, and the efficiency of cooling and heating of the cup is relatively high.

The invention is mainly applied to the field of vacuum equipment and particularly relates to a novel vacuum compression system. The novel vacuum compression system comprises a motor. The motor is a double-shaft extension motor. One output end of the motor is connected with a vacuum pump A through a speed reducer A, and the other output end of the motor is connected with a vacuum pump B through a speed reducer B. The vacuum pump A and the vacuum pump B are both double-suction vacuum pumps. Air inlets of the vacuum pump A and the vacuum pump B communicate with air inlet pipes correspondingly. The two air inlet pipes communicate with a main air inlet of a vacuum system through an air inlet T-joint. Through the novel vacuum compression system, a vacuum unit can be made to operate at an optimum performance working point in a matched mode, and the technical requirements for the large air pumping amount are met. A driver and the pumps can be controlled through clutches. The air pumping amount can be increased when the two pumps operate in parallel. The compression ratio can be increased, and the air discharge pressure can be increased.

The invention discloses a gas compression pump with a special-shaped cavity. The pump comprises a stator and a rotor, wherein the stator is a cylinder with a special-shaped cylindrical surface inner cavity, an inlet and an outlet; the special-shaped cylindrical surface inner cavity is formed by combining two arc surfaces and two non-arc surfaces; the rotor consists of a rotor body and two pairs of combined sliding plates; the rotor body is a cylinder with a transmission shaft, a centering shaft and cross guide grooves; the two pairs of combined sliding plates are vertically arranged in the guide grooves; each cover plate is a flat plate with a bearing hole; the two end faces of the stator are matched with the cover plates to form a sealed cavity; the rotor is matched with the bearing holes in the cover plates through the transmission shaft and the centering shaft; an external driving couple makes the rotor rotate through the transmission shaft; and when the rotor rotates, the combined arc surfaces of the special-shaped cylindrical surface inner cavity are matched with the rotor, the two pairs of combined sliding plates are controlled to slide crosswise, gas is sucked into the inlet and pressed out of the outlet, and positive pressure is formed in an outlet area.

The invention relates to a control system, which is characterized in that a concrete pump drives a reversing electromagnetic valve of a cylinder to reverse after time is delayed for 500ms to 1000ms when the reversing electromagnetic valve receives a signal transmitted from a magnetic switch, an emergency pumping power control oil inlet port is connected with an emergency arm support operation preselector valve, a port P of the emergency arm support operation preselector valve is connected with a diesel driving high-pressure water pump preselector valve, a motor normal driving arm support, a supporting leg and cable reel operation function control oil inlet port, a port P of the diesel driving high-pressure water pump preselector valve is connected with a steering priority control valve, a port P of the steering priority control valve is connected with a brake priority control valve, and a port P of the brake priority control valve is connected with a hydraulic oil pump which is arranged on a chassis and used for controlling braking and steering functions. In another technical scheme, the invention provides self-travelling construction machinery with the control system. The control system and the self-travelling construction machinery meet requirements of concrete pumping, simultaneously are simple in structure of mechanisms, and save cost.

The invention relates to the field of lotus root digging machines and provides a novel lotus root digging machine water pump. The novel lotus root digging machine water pump is characterized by comprising a pump body, a water drawing pipe and a water outflow pipe; the water drawing pipe comprises a main water drawing pipe body and auxiliary water drawing pipe bodies, and the auxiliary water drawing pipe bodies are arranged on the main water drawing pipe body at a certain distance; a transmission shaft is arranged in the pump body, blades, filter nets, a partition plate, a primary impeller, a fixed supercharging disc and a secondary impeller are sequentially arranged on the transmission shaft in the water inflow direction, the filter nets are connected with the partition plate, the primary impeller is arranged in the fixed supercharging disc, the secondary impeller is arranged on the water outflow side of the fixed supercharging disc, and a first bearing, a second bearing, a shaft sleeve and an oil seal are arranged on the transmission shaft; a water channel is formed in the pump body and connected with the water outflow pipe; an auxiliary water drawing pipe body support is 1 / 4 of the main water drawing pipe body, a user can select the proper water drawing pipe bodies according to the water level of a lotus root field, when one water drawing pipe body is blocked, due to the water pressure difference, water in the main water drawing pipe body can flow into the auxiliary water drawing pipe bodies, the blockage position is burst through, and the purpose of automatically clearing away blockage objects is achieved.

The invention discloses an energy conservation and emission reduction system with double back-pressure condensers in a thermal power station. The energy conservation and emission reduction system comprises a turbine high-pressure cylinder, an intermediate-pressure cylinder, a low-pressure cylinder A, a low-pressure cylinder B, the low-pressure condenser and the high-pressure condenser. The turbine high-pressure cylinder is communicated with the intermediate-pressure cylinder. The low-pressure cylinder A and the low-pressure cylinder B are communicated with the intermediate-pressure cylinder. The low-pressure cylinder A is communicated with the high-pressure condenser. The low-pressure cylinder B is communicated with the low-pressure condenser. The low-pressure condenser is communicated with the water side of the bottom of the high-pressure condenser. The energy conservation and emission reduction system further comprises high-power water ring vacuum pumps and three-level Roots variable frequency pump sets. The high-power water ring vacuum pumps and the three-level Roots variable frequency pump sets are communicated with an A side exhaust pipeline of the high-pressure condenser and a B side exhaust pipeline of the low-pressure condenser. According to the energy conservation and emission reduction system with the double-back-pressure condensers in the thermal power station, exhausting is conducted on the low-pressure condenser and the high-pressure condenser through the independently-operating exhaust pipelines respectively, the high-back-pressure condenser and the low-back-pressure condenser can operate in different exhaust pressure, compared with the manner that one exhaust mother pipe is used for two condensers, exhaust pressure of the low-pressure condenser is reduced, and the power capability of the low-pressure cylinders is improved.

The invention discloses a solvent refining method for pyromellitic dianhydride. The method comprises six steps of: dissolving and decoloring; filtering to remove impurities; cooling for crystallization; performing solid-liquid separation; drying; and distilling a solvent; and the steps of filtering to remove the impurities, cooling for crystallization, performing solid-liquid separation, drying and distilling the solvent, and the conveying of materials are completed through negative pressure generated by a liquid ring vacuum pump unit. The liquid ring vacuum pump unit has high sucking rate and high vacuum degree; the pumped solvent vapor is condensed by a condenser to form circulation fluid used by the liquid ring vacuum pump unit, the circulation fluid is not lost and the solvent vapor is not leaked, so that the aims of saving energy and reducing emission are fulfilled. In the whole production process, three wastes are hardly generated, the yield and purity of the product are high, and the method is an ideal environment-friendly process.

A packaging structure including at least one cavity wherein at least one micro-device is provided, the cavity being bounded by at least a first substrate and at least a second substrate integral with the first substrate through at least one bonding interface consisting of at least one metal or dielectric material, wherein at least one main face of the second substrate provided facing the first substrate is covered with at least one layer of at least one getter material, the bonding interface being provided between the first substrate and the layer of getter material.

The invention relates to a vacuum pump. The vacuum pump comprises a pump body, a pump cover detachably connected with the front end of the pump body, an impeller eccentrically mounted in the pump body, a pump shaft, and a motor integrally arranged with the pump shaft; an exhaust cavity, an intake cavity, a cavitation protection water supply cavity and a pump water supply cavity are formed in the side end surface of the pump cover; a cavitation protection water supply port communicating with the cavitation protection water supply cavity and a pump water supply port communicating with the pump water supply cavity are formed in the side end surface of the pump cover; the pump cover is provided with a water draining port between the cavitation protection water supply cavity and the pump watersupply cavity; the impeller is mounted on the pump shaft through key connection, and the length-diameter ratio is 0.5; a disc, a flexible valve plate and a rigid valve plate cover plate are arranged between the impeller and the pump cover; a connecting part connected with the front end of the motor is integrally arranged on the back end surface of the pump body; and the air sucking quantity of thepump body is 10-50 m3 / h. The vacuum pump has the characteristics of low mating power and high air extracting quantity, and is small in size, high in working efficiency and environment-friendly.

The invention relates to an improved slide-valve Roots vacuum unit, which comprises a pump body, a pair of rotors and a pair of shafts, wherein the rotors and the shafts are arranged in the pump body, and the rotors are meshed. The improved slide-valve Roots vacuum unit is characterized in that the top part of the pump body is provided with an air inlet; the bottom part of the pump body is provided with an air outlet; the bottom part of the pump body is connected with a slide-valve pump through a corrugated pipe; the top part of the slide-valve pump is provided with a cooling water control device; the slide-valve pump is communicated with the cooling water control device; a rotating shaft, an eccentric wheel, a slide valve and an air release valve are arranged in the slide-valve pump; the eccentric wheel is arranged outside the rotating shaft; and the slide valve is arranged outside the eccentric wheel. The improved slide-valve Roots vacuum unit has the advantages of simple structure, high vacuum degree, high efficiency, energy conservation, high sucking rate and stable performance. Besides, the improved slide-valve Roots vacuum unit is easy to start at ordinary pressure, simple in maintenance and convenient for use.

The invention discloses a smoke alarm for a ship. The smoke alarm comprises a remote second fire alarm controller which is used for controlling a cargo hold, wherein the remote second fire alarm controller is arranged in a CO2 chamber. The invention further discloses an alarm system of the smoke alarm for the ship. The alarm system further comprises a third fire alarm controller used for controlling a cabin and a first fire alarm controller used for controlling a living area, wherein the third fire alarm controller and the second fire alarm controller are connected with the first fire alarm controller. The invention further discloses an alarm method of the smoke alarm for the ship and an alarm method of the alarm system of the smoke alarm for the ship. According to the smoke alarm for theship, the alarm system and the alarm methods thereof, a first smoke detection box is placed in the safe cargo hold, so that the installation of a first sampling pipeline is not limited by space, the first smoke detection box can be connected to the first sampling pipeline with the pipe diameter of DN20-150, the first sampling pipeline is not prone to block, the air sucking amount is large, the airsuction is rapid, and the fire alarm response time is short.