77results about How to "Uninterrupted operation" patented technology

The invention provides a low-temperature refrigerating control method of an air conditioner and the air conditioner. By the adoption of the low-temperature refrigerating control method of the air conditioner and the air conditioner, the technical problem that an air conditioner cannot conduct refrigeration continuously under a low-temperature condition is solved. The control method comprises the following steps that when the air conditioner conducts refrigeration, the outdoor environment temperature is detected; whether the detected outdoor environment temperature is lower than a set temperature threshold value or not is judged; and if so, the operation frequency of a compressor of the air conditioner is lowered to be within a preset frequency range, and the superheat degree of the air conditioner is increased by preset degrees. According to the air conditioner adopting the control method, the effect that an indoor heat exchanger cannot enter a freeze protection mode at the low temperature is guaranteed, the indoor heat exchange capacity is improved, and then the refrigerating capacity is improved; in addition, continuous operation of the compressor is achieved, and the technical effect of continuous refrigeration is achieved at the low temperature.

The invention provides a non-intermittent phase-change heat storage defrosting system, which relates to an energy storage defrosting system. The defrosting system aims at solving the problems that an air source hot pump defrosting method has the poor stability and reliability of machine units and the rooms become less comfortable after heat supply is stopped. The defrosting system of the invention is characterized in that an indoor machine is connected with a first pipeline and a second pipeline; an outdoor machine is connected with a second pipeline and a third pipeline; the third pipeline is respectively connected with the indoor pipeline and the outdoor pipeline; a fourth pipeline and a fifth pipeline are respectively connected with the fist pipeline and the third pipeline; a compressor is connected with a gas-liquid separator; a four-way directional valve is respectively connected with the first and the fifth pipelines, the gas-liquid separator and the compressor; the phase-change heat storage device is connected with the fifth and the fourth pipelines through a sixth pipeline and a seventh pipeline; an eighth pipeline is respectively connected with the fifth and seventh pipelines; a first valve, a second valve, a third valve, a fourth valve, a fifth valve, a sixth valve, a seventh valve, an eighth valve and a ninth valve are respectively arranged on the fifth pipeline, the sixth pipeline, the seventh pipeline, the eighth pipeline, the first pipeline, the second pipeline, the third pipeline, the fourth pipeline and the first pipeline; a capillary pipe is arranged on the fourth pipeline. The defrosting system of the invention has good stability and reliability, high defrosting speed, and high comfort level of the room after the heat supply is stopped.

The invention relates to a method for Oracle regularly deleting stale data in a database. Firstly, database contents are respectively placed on different areas according to classification; then, a storing process and a function in the database are set, and a method and a rule for deleting a stale file are defined; and finally, a timed task (can be carried out on an operation system) in the database is set, and executing operation comprises the steps of adding the areas which can contain new data and deleting subareas of the stale data, if all subareas of the areas are deleted, parent areas are deleted. The invention can rapidly delete the stale data in the high-volume database under the conditions that the database performance is not reduced, and the operation is incessant.

The invention relates to a blast furnace gas dry cloth-bag dust-removing device and technology, belonging to the metallurgy environmental protection dust removing technical field. The blast furnace gas dry cloth-bag dust-removing device and technology mainly comprise devices such as a dust-removing filtering device, an ash-clearing device, a dust-unloading and transporting device, an automatic control device, a gas dispersion device, and technologies such as large filtering wind speed, nitrogen or pure coal gas pulse current back-blowing and ash-clearing, pneumatic unloading and transporting ash and backup for nitrogen and pure coal gas, wherein, coal gas is filtered and purified by a filtering bag, the ash is back-blown by nitrogen or pure coal gas pulse current so as to control the resistance of the dust remover, thereby the filtering bag has the ideal dust removing effect, which is a dry dust-removing purification system having the advantages of high dust-removing efficiency, low dust content of the pure coal gas, low energy consumption of the dust-removing system, high heat efficiency of the pure coal gas and high automation degree; the filtering bag with over-long specification and a biserial pulse back-blowing system are adopted to meet the requirements of the dust-removing system upon a large filtering area and an excellent back-blowing efficiency; a crude gas bleeding valve group is increased to ensure that the coal gas with overproof temperature can not enter to a case of the dust remover, which protects the cloth-bag, controls effectively the high furnace roof pressure and operates the system more safer; the whole course waterless operation is realized so as to prevent the possibility of water containing coal gas dust to paste the filtering bag, thereby having the characteristics of less occupied area, short technology process, strong ability of clearing the ash, simple equipment and low labor intensity.

The present invention relates to a passive emergency cooling system for a severe accident in a reactor. The purpose of the present invention is to solve the reactor cooling problem after the failure of the cooling system by the disaster and the severe accident. According to the system, a high position pool, a heavy pollution pool, a moderate pollution pool and a light pollution pool are arranged outside the reactor; a first branch of a high position pool water supply pipe is connected with a reactor core pressure container by a shuttle type check valve; a second branch is connected with a safety housing by a shuttle type check valve; a third branch is connected with a spraying device on an outer room ventilation hole by a shuttle type check valve; a first water outlet pipe on the safety housing is connected with a repeat pollution pool by a shuttle type check valve; a second water outlet pipe on the safety housing is connected with the moderate pollution pool by a shuttle type check valve; a third water outlet pipe of the outer room is connected with the light pollution pool by a shuttle type check valve; all the position pools are provided with cover plates; each position pool is provided with a boosting pump, wherein the polluted water is pumped from the pools by water aspirators, and reflows to the high position pool after passing through the shuttle type check valves and pollution water treatment devices.

The invention relates to microwave high-temperature heating equipment, in particular to a microwave high-temperature continuous tunnel kiln. The microwave high-temperature continuous tunnel kiln comprises two bracketsarranged in parallel, an inlet-end turning device and an outlet-end turning devicewhich are arranged at the two end parts of the bracket structure respectively, kiln car traveling guide rails arranged on the brackets, a kiln car, a tunnel kiln body arranged on one bracket, a charging device and a discharging device which are arranged on another bracket, and a feeding hole inhibitor and a discharging hole inhibitor which are arranged at the two end parts of the tunnel kiln body, wherein the tunnel kiln body comprises a housing, a heat preservation layer arranged in the housing, a microwave resonance cavity body formed in the inner wall surface of the heat preservation layer, a temperature measurement device and a microwave source assembly. The microwave high-temperature continuous tunnel kiln has the advantages that the structure is compact, the automation level is high, the heating speed is high, the temperature difference of materials is low, automatic charging, discharging and heating are realized, the working environment is improved, the labor intensity is reduced, the working efficiency is improved, and the continuous material production is achieved.

The invention discloses a recommendation data extracting method based on Windows timed tasks. The recommendation data extracting method is an increment extraction method based on dates and is developed on the basis of a JAVA language, database connection is performed in a JDBC mode, extracting tool execution codes are called in MAIN functions, a BAT script is made, and circulation calling is implemented through the timed tasks of Windows. According to the method disclosed by the invention, a JAVA-JDBC mode is adopted for compiling, and due to the characteristics of the JAVA language, constraint of an operation system is avoided, and relatively stable and reliable operation can be achieved; database configuration information is placed in a property file, thus facilitating configuration modification; due to log treatment, error messages can be conveniently tracked; due to the timed tasks of the system, reliable and uninterrupted operation can be ensured.

The invention discloses dual-redundancy computer equipment based on a domestic Loongson platform. The equipment comprises main computer equipment and standby computer equipment which are deployed on adomestic Loongson platform and recorded as a host and a standby respectively, a main and standby synchronization module, a main and standby switching module and an equipment cabinet management module, wherein each computer equipment comprises a BMC module and a measurement and control CPU module, the BMC module is provided with a CAN communication interface and a GPIO communication interface. According to the invention, a dual-redundancy hot backup method is utilized to ensure that the equipment can effectively and normally operate for a long time, and a health monitoring module is provided,so that the platform crash probability caused by instability of the equipment can be greatly reduced, and a stable and reliable operation platform is effectively provided for a domestic Loongson module.

The invention relates to an automatic marking device of a round bar mark. At present, the working efficiency of marking on a round bar is low, and therefore, the continuous production is difficult to realize. The automatic marking device comprises a stamping die and stamping equipment and is characterized by comprising round bar feeder equipment, wherein the round bar feeder equipment comprises a round bar rollaway nest, a beam, a horizontal plate, at least two rollaway nest plates and at least two elastic separation blades, wherein the round bar rollaway nest is arranged on the horizontal plate; the included angle between a bottom plate and the horizontal plate in the round bar rollaway nest is 5 to 30 degrees; both ends of the beam are respectively fixed on a left side baffle and a right side baffle; and the elastic separation blades are fixed on the beam. The stamping die comprises a marking die and at least two wedge-shaped punches, wherein the bottom of the marking die is in a circular arc shape; the bottoms of the wedge-shaped punches are cutting edges; the cutting edges and the circular arc-shaped bottom in the marking die are malposed; the wedge-shaped punches are mutually flush with each other; and the stamping die is arranged above the elastic separation blades. The invention has reasonable structural design and high working efficiency and can automatically mark batch round bar marks.

The invention relates to a plant growth self-feedback learning cultivation method based on artificial intelligence, and the method comprises the steps: continuously collecting two-dimensional and three-dimensional images of each stage of plant growth, and continuously collecting plant growth environment data; inputting the collected two-dimensional and three-dimensional images into a plant growth model, optimizing the plant growth model, and obtaining current plant growth condition data; meanwhile, according to the obtained current plant growth condition data, based on the set plant growth parameters, configuring the growth environment of the plants in all the plant cultivation boxes in all the growth stages; and training a classification algorithm based on the obtained plant growth condition data and plant growth environment data to obtain a production parameter tuning model and tuning growth parameters. And obtaining the optimal plant growth parameters after multiple iterations. According to the method, real-time statistics and analysis can be carried out on the plant from the initial seedling planting stage to the flowering result, and plant growth research is automatically carried out in a self-feedback mode.

The invention relates to the field of transcoding system software, in particular to online cloud transcoding service system software. The online cloud transcoding service system software comprises a cloud transcoding scheduling module, a video clip processing module, a transcoding module, a video storage module and a calling service platform module to which a transcoding success identification is fed back. The cloud transcoding scheduling module comprises an uploading interface request module calling UCG of a cloud transcoding scheduling system and a transcoding task accepting module of the cloud transcoding scheduling system; the transcoding module comprises a transcoding inquiry module and a transcoding processing module. Adopting the online cloud transcoding service system software can make full use of resources of servers, improve video transcoding efficiency and reduce error frequency in video transcoding.

A production method of multi-fruit wine is a method for producing beverage wine through fermenting fruits. The method comprises the following steps: preparing pear base wine, immersing to prepare a green wine, preparing an orange perfume wine, and preparing the multi-fruit wine. Bulk wine obtained by fermenting various pears containing sour pear is used as the base wine, orange and green plum with good nutrition, dense fragrance and good flavor in the south are selected, and are compounded and brewed, so the multi-fruit wine has good color, flavor and taste, and contains abundant nutrition. A fermentation technology of the multi-fruit wine controls formation of most methanol, higher alcohols and biogenic amines to prevent the disadvantage of drunkenness of fruit wine products. The problems of color browning and difficult clarification of pear wine compounded products are well solved in the invention. The pear fermented bulk wine is compounded with the green plum immersion wine or orange fermented bulk wine to set up typical composite fruit fragrance flavor. The multi-fruit wine is one of deep processing beverage wines of various fruits, and the production method of the multi-fruit wine using multiple fruits can promote the development of local agriculture.

The invention discloses a tritiated water recycling device which comprises a tritiated water supply device, a second gas recycling pump, a condenser, a tritiated water storage tank, a first adsorption bed and a third adsorption bed. The first adsorption bed and the third adsorption bed are each filled with a 5A molecular sieve. The tritiated water supply device and the first adsorption bed are connected to form a tritiated water removal circuit. The second gas circulating pump, the first adsorption bed, the condenser and the third adsorption bed are connected in sequence. The third adsorption bed is connected to the input end of the condenser in a return mode, so that the second gas circulating pump, the first adsorption bed, the condenser and the third adsorption bed form a tritiated water recycling circuit. The tritiated water storage tank is connected with the output end of the condenser. According to the tritiated water recycling device, recycling of tritiated water in gas can be achieved with no extra carrier gas, only liquid tritiated water is output, no other waste tritium-contained water is generated in the running process, and safety and reliability are achieved; meanwhile, the tritiated water recycling device is connected to technological equipment of a tritium technology laboratory, so that continuous recycling of tritiated water in gas of different types is achieved.

The invention discloses a system and a method for determining concentration of carbon dioxide in industrial smoke. The method comprises the following steps: preparing a series of simulated industrial smoke with known carbon dioxide standard gas concentration by virtue of a standard gas storage tank, a gas mass flow meter and a controller of the detection system; respectively determining absorption peak areas of carbon dioxide standard gases of different volume concentrations by virtue of an IGS gas infrared analysis instrument in the system, and establishing a standard fitting working curve according to data; and collecting and measuring to-be-determined industrial smoke, substituting a measurement result into the standard fitting working curve, so as to obtain the content of carbon dioxide gas in the industrial gas. According to the method provided by the invention, the original atlas data of the area of a quantitative absorption peak of carbon dioxide can be recorded, related data can be preserved for a long time, the method can meet the value traceability requirement of carbon emission data, the result is accurate, and the precision is high.

The invention discloses systems and methods for gas supply and usage. This invention relates to gas vaporization and supply system that includes (a) a vessel suitable for holding a bulk quantity of a liquefied gas; (b) at least one heating source positioned on or near the vessel to supply energy to, or remove energy from, the liquefied gas; and (c) a heating source controller adapted to use process variables feedback for dynamically regulating the heating source and maintaining and regulating gas output. The process variables feedback results from cascading sequence control of at least two process variables. The process variables include pressure, temperature, and / or gas output flow rate. This invention also relates to a method for delivery of a gas, e.g., ultra high purity gases, from a liquefied state in a controlled manner to a usage site, e.g., a semiconductor manufacturing facility. This invention provides faster heating system response to fluctuations in customer demand, a longer heater life, and improved reliability.

The invention discloses a dual-computer hot standby method based on heartbeat. The system comprises two director machines and a live broadcast server, wherein the director machines are connected withthe live broadcast server. The core of each director machine comprises two parts, namely a heartbeat monitoring part and a resource takeover part. The method specifically comprises the steps that (1)the heartbeat monitoring part is carried out through a wireless network card link, and the main director machine sends a message at regular time to tell the standby director machine of the current state of the main director machine; and (2) if the heartbeat message sent by the main director machine is not received within the specified time, the fact that the opposite side has a fault is considered, and the resource takeover part on the standby director machine is started to take over the live broadcast service running on the main director machine and push the live broadcast service to a live broadcast server. The method has the beneficial effects that the normal live broadcast service can be recovered quickly; the main / standby switching time is short; the speed is high; automatic switchingis realized without manual intervention; uninterrupted real-time operation of the live broadcast service is ensured; and the safety and the real-time performance of the live broadcast are guaranteed.

The invention discloses a pin-type lifting device control system of an ocean engineering platform, comprising a central console, a redundant PLC (Programmable Logic Controller), a hydraulic pump station control unit, a pile leg local control unit, a pile leg running status detection device, and a CCTV monitoring device. According to the invention, CPU redundancy of the controller and PROFIBUS communication redundancy between the controller and remote I / O modules are established using the redundant PLC. When one CPU module goes down due to internal failure or external communication failure, a standby CPU module is immediately put into operation to ensure uninterrupted operation of a lifting device. Through the redundant PLC, a lifting device can adapt better to various marine environments, the maintenance cost of lifting devices due to shutdown caused by CPU module failure or external communication failure is reduced, and safe and stable platform lifting is ensured.

The invention discloses an SPE (Solid Polymer Electrolyte) electrolysis system used for tritium concentration. The electrolysis system comprises an electrolytic tank system, a tritiated water supply system, a gas-liquid separator, a tritiated water collection system, a hydrogen drying system, an oxygen drying system, a hydrogen collection system, a product oxygen collection and storage tank, a condensation system and a detection and control system. The invention further provides a realization method for the SPE electrolysis system used for tritium concentration. The electrolysis system can meet all process demands of aqueous phase tritium concentration, wherein the processes include a tritiated water circulating concentration process, a hydrogen leakage emergency power-off process, a molecular sieve drying bed continuous treatment process and the like. Meanwhile, due to the tritiated water circulating concentration, the tritiated water concentration can be quantitatively controlled, so that the tritium concentration efficiency is greatly improved and a large amount of tritium-poor hydrogen is obtained.

The invention relates to a multi-inverter parallel carrier synchronization device with a redundancy function and a synchronization method thereof. The synchronization system comprises a host, a standby host and a plurality of slaves, wherein the host and the standby host are the same in structure, the host and the standby host are connected with the slaves through synchronous optical fibers in a broadcasting mode, the slaves are connected with the host and the standby host through two synchronous lines respectively, and the host and the standby host are connected through two synchronous lines;the synchronization method comprises a host synchronization processing method, a standby host synchronization processing method and a slave synchronization processing method. The design is reasonable, the host / standby host sends and receives synchronization signals at the same time, when the host breaks down, the standby host can still guarantee normal operation of the system, after the host returns to normal, the host is synchronized with the standby host and then put into operation, smooth access without impact can be achieved, the system reliability is improved, and power loss during failure can be reduced to the minimum.

The invention discloses an energy-saving type closed-type cooling tower refrigerating system applied to an IDC machine room. The energy-saving type closed-type cooling tower refrigerating system comprises a closed type cooling tower, a solar absorption refrigeration unit, a cold water tank, a chilled water pump, a cooling water pump, an IDC machine room tail end device, a solar heat collector, a first circulation water pump, a heat collecting water tank, a second circulation water pump, an embedded type control system, a solar absorption type refrigeration unit return water temperature sensor, a closed type cooling tower return water temperature sensor, a closed type cooling tower inlet air dry-wet ball temperature sensor, a closed type cooling tower draught fan frequency changer, a closed type cooling tower circulation water pump frequency changer and electrically-operated valves, wherein the embedded type control system, the solar absorption type refrigeration unit return water temperature sensor, the closed type cooling tower return water temperature sensor, the closed type cooling tower inlet air dry-wet ball temperature sensor, the closed type cooling tower draught fan frequency changer, the closed type cooling tower circulation water pump frequency changer and the electrically-operated valves are electrically connected. According to the energy-saving type closed-type cooling tower refrigerating system, the closed type cooling tower working condition running manner is adopted, and the solar absorption refrigeration unit cannot be opened at night in winter, in transition season and in summer; a closed type cooling tower is used for refrigeration, the solar absorption refrigeration unit is used in the day in summer, solar energy is used for refrigeration, energy saving and electricity saving are achieved, and the energy-saving type closed-type cooling tower refrigerating system is safe, reliable and environment-friendly.

The invention provides a constant-humidity and constant-oxygen gravity all heat recovery anti-freezing fresh air unit and an air conditioner, and belongs to the field of air conditioners. The constant-humidity and constant-oxygen gravity all heat recovery anti-freezing fresh air unit comprises a heat recovery module, a humidity adjusting module, a first reheat recovery surface cooler, a second reheat recovery surface cooler, a main surface cooler, a filter module, a fan and an external cold and hot source; the first reheat recovery surface cooler, the humidity adjusting module, the main surface cooler, the second reheat recovery surface cooler, the fan and the filter module are arranged on one side of the heat recovery module in sequence; the main surface cooler is connected with the external cold and hot source; and an output end of the fan is arranged towards the filter module. Outdoor low-temperature air of a split anti-freezing gravity all heat recovery device firstly passes through a saline solution heat recovery device; fresh air recovers heat of indoor exhausted air of 20 DEG C; and outdoor fresh air is preheated and humidified, enters the saline solution for further heatingand humidification, and enters the heat supply surface cooler for heating to send into rooms, so that the air conditioner still can be started when outdoor temperature is lower than 0 DEG C.

The invention belongs to the field of electrical equipment and particularly relates to an optical fiber driven remote inverter, which comprises a PCBA control panel. The input end of the PCBA controlpanel is connected with a low-voltage power supply. The output end of the PCBA control panel is connected with an optical fiber receiving module. The optical fiber receiving module is connected with aPCBA driving board. The output end of the PCBA driving board is connected with a power device. The power device is connected with a motor. By means of the optical fiber driven remote inverter, the optical fiber communication is adopted to replace the design of an optical coupler. Therefore, a high-cost power line is not needed, and resources are saved. The anti-electromagnetic interference intensity is also increased due to the adoption of optical fibers.

The invention discloses a plasma generator. The plasma generator comprises a first carbon electrode, a first metal electrode and a compensation feeding device; the first metal electrode is provided with a cavity, and the cavity comprises a first end constructed as an outlet of plasmas and a second end opposite to the first end, wherein the first carbon electrode extends into the cavity through thesecond end; and the compensation feeding device is fixedly connected with the first carbon electrode and drives the first carbon electrode to move towards the outlet, wherein the inner surface of theoutlet is constructed to be gradually far away from the center line of the cavity in the direction from the second end to the first end or constructed to be gradually close to the center line firstlyand then far away from the center line in the direction from the second end to the first end.

The invention relates to a multi-heat source waste heat recovery system which includes a power generation system, a refrigeration system, a heating system and a cooling system; the power generation system is used for providing electric energy for the refrigeration system, the refrigeration system uses high temperature waste heat and low temperature waste heat for refrigeration, the waste heat usedby the power generation system and the refrigeration system is used for the heat source cascade of the heating system, and the cooling system is used for cooling a power supply system and the refrigeration system. According to the multi-heat source waste heat recovery system, different waste heat recovery modes are adopted according to different residual heat source temperatures, the high temperature waste heat is used for the power generation system, and the generated electric energy can drive the compression refrigeration system to cool; the cooling system can recycle high temperature wasteheat and low temperature waste heat at the same time, and the waste heat after cooling can enter the low temperature water tank to provide hot water for daily life, so as to realize waste heat recovery with high quality and cascade utilization, and the internal energy can be transformed and utilized mutually, thus improving the comprehensive utilization efficiency of energy.

The invention provides a water removing and weight reducing device for kitchen waste. According to the technical scheme, a shell, an inner sleeve and a variable diameter spiral are sequentially embedded from exterior to interior. The variable diameter spiral is driven by a motor through a timing gear to upwards convey the kitchen waste which enters from a feed port and a material conveying opening, and due to the fact that the variable diameter spiral can generate relatively high extrusion force to the material in the conveying process, the water can be extruded out and flow out through through holes in the inner sleeve. The extruded water is accumulated between the inner sleeve and the shell and then is drained out of a liquid draining opening, and the dry material conveyed to the upper end is discharged through a discharge port under the rotation action. According to the water removing and weight reducing device for the kitchen waste, the material conveying and extrusion water removing effects are combined, sufficient drying and weight reducing can be achieved, the operation process is uninterrupted and can be continuously completed, and extremely high treatment efficiency is achieved.

A remote environment monitoring alarm device for grinding and polishing workshops relates to an alarm device. The device is a remote environment monitoring alarm device for grinding and polishing workshops based on ZigBee and a microprocessor. The device is equipped with a system host and a remote control. The host has a rectangular shell. A liquid crystal display screen is arranged on the front of the host. An infrared receiver is arranged in the lower left corner of the front. A temperature, humidity and dust sensor collected data window is arranged in the upper part of the right side of thehost. A buzzer is arranged in the lower part of the right side of the host. The left side of the top of the host is covered with a solar photovoltaic panel. A burst flashing indicator light is arranged in a position near the display screen on the right side of the top of the host. A ZigBee antenna is arranged in a position away from the display screen on the right side of the top of the host. Theinfrared receiver is connected with the host. The device can remotely collect the temperature, humidity and dust concentration of a grinding and polishing workshop and transmit the collected data through a ZigBee network to a remote monitoring center, has sound and light alarm functions, and is very suitable for upgrading and rebuilding the existing grinding and polishing workshop.

The invention particularly relates to a concrete pouring device for cast-in-place ballastless track bed construction, and solves the problems of low construction precision and increased construction cost in application of an existing conventional equipment and manual operation pouring mode. The concrete pouring device for cast-in-place ballastless track bed construction is characterized in that agenerator, a hopper and an electric push rod are arranged on the upper surface of a vehicle frame; three discharging bent pipes are arranged below the hopper, three discharging valve plates are arranged at discharging openings of the three discharging bent pipes respectively, a linkage rod is fixedly arranged on the three discharging valve plates in a penetrating mode, a connecting rod is fixedlyconnected to the linkage rod, and a push rod of the electric push rod is hinged to the connecting rod; and a first wireless receiving module is arranged beside a driving motor, and a second wireless receiving module is arranged beside the electric push rod. The purpose that an operator operates pouring operation outside the line is achieved, the damping effect is good, the construction precision and the construction efficiency are effectively improved, the construction cost is reduced, and the device is suitable for pouring operation of the cast-in-place ballast bed.

The invention relates to a combined generator which comprises a generator body. The generator body comprises a shell, a bearing set, rotors, stators, collecting rings and a terminal. The shell is of a barrel-shaped structure with openings in the two ends. The bearing set is arranged on the inner walls of the two open ends. The rotors are sleeved with the shell of the barrel-shaped structure, and the two ends of each rotor are rotatably connected with the bearing set. Hollow cylindrical channels are formed in the rotors in the direction of the center axes, and the two open ends of each channel serve as an air inlet and an air outlet of the generator body respectively. Guiding portions are arranged on the inner walls of the channels, and insulation layers are arranged on the inner walls of the channels and the guiding portions. The stators are connected to the outsides of the rotors in a sleeving mode, and the stators are not in contact with the rotors. The collecting rings are used for providing exciting current for the rotors. The terminal is connected with the stators and used for outputting current generated by power generation. The channels are formed in the direction of the center axes of the rotors, a water turbine / turbine and a generator are combined, the structure is compact, and power of water / steam is fully utilized.