74results about How to "Meet oxygen demand" patented technology

The invention discloses an aerating and stirring device which can be applied to the field of cultivation and environmental protection and can improve the water quality and a water body activating method. An aerating device activates water body by adopting stirring and aerating modes, wherein a stirring device and the aerating device can operate respectively or simultaneously, an optimal working mode is selected according to actual requirements, and submersible-type vanes in the stirring device can guide pool water into water surface from the water bottom so as to form circulating water flow; and the aerating device improves the oxygen content in water and takes harmful gases away from the water by conveying tiny air bubbles into the water body, promotes the ecological self-purification of water and has the advantages of energy saving and low noise.

The invention relates to a bioreactor for producing ethanol by using lignocellulose materials with high solid content, which at least comprises a tank body; a feeder comprises a rubbing unit, the tank body is provided with a charge opening, a discharge opening, a sterile air inlet, a gas disperser and a sensor jack. An anti-spiral screw belt is located at the upper part of the combined agitator blade and the direction of the screw belt is opposite to that of the screw belt of the combined agitator blade. The invention has the advantages that the enzymolysis and fermentation efficiencies of the lignocellulose materials which are rubbed by the feeder are increased, the combined agitator blade ensures that the materials in the tank body are mixed adequately, and transfer mass and heat, the anti-spiral screw belt eliminates the high viscosity bubble or bubble layer generated by the system immediately, parameters are measured accurately under the condition that the positioning way of the sensor does not influence the full mixing and transferring of the system; and the gas disperser disperses the gas introduced to the tank under the condition of not influencing that the system is adequately mixed and transferred.

The invention belongs to the field of sewage treatment, and particularly relates to a eutrophic wastewater treatment device and method. The eutrophic wastewater treatment system comprises a water absorption, a magnetic flocculation device, a disk drive reoxygenation device and a floating bed device, wherein the water absorption device is used for extracting deposits of surface layer sediment of eutrophic wastewater and interstitial water thereof; the magnetic flocculation device is connected with the water absorption device and used for forming the eutrophic wastewater extracted by the water absorption device into magnetic floccules; one side of the disk drive reoxygenation device is connected with the magnetic flocculation device, and the other side is connected with the floating bed device; the disk drive reoxygenation device is composed of a disk mechanism, a magnetic seed recovery device and a nano microbubble generator; the disk mechanism is used for carrying out magnetic separation on the magnetic floccules to form magnetic sludge; the magnetic seed recovery device is used for recovering magnetic seeds; the nano microbubble generator is used for fusing the purified eutrophic wastewater into a gas-liquid homogeneous stream; and the floating bed device is an aquatic plant ecological floating bed.

The invention belongs to the technical field of fish culture, and particularly discloses a breeding method for prolonging the service life of rainbow trout. The method comprises the following steps that 1, an aquaculture pond is selected; 2, rainbow trout fry are put; 3, culture management is carried out; 4, feed is put at the advanced fry stage; 5, water management is carried out. The rainbow trout is cultured through the culture method, the disease resistance of the rainbow trout can be enhanced, the survival rate is greatly increased, the obtained rainbow trout is fat, delicious and tender in meat, and the economic value is extremely high.

The invention relates to a compound energy-saving type medical molecular sieve central oxygen generation and medical air compression integrated device, comprising a main air supply source, auxiliary air supply sources, and a standby air supply source for continuing to supply oxygen when the main air source and the auxiliary air sources stop at the same time, wherein the main air supply source, the auxiliary air supply sources and the standby air supply source share one air balance tank, one oxygen balance tank and one oxygen division pot with a voltage-sharing and flow-equalizing function, the auxiliary air supply sources are arranged beside the main air supply source side by side and perform auxiliary supplement air supply for the main air supply source, and the standby air supply source continues to supply oxygen when the main air supply source and the auxiliary air supply sources stop at the same.

The invention relates to a poor oxygen resistance high density fermentation natamycin gene engineering strain (Streptomyces gilvosporeus sw-807, CGMCC No.6890) constructed by using vgb gene, and an application thereof. According to the present invention, vitreoscilla hemoglobin gene vgb is adopted to construct recombinant plasmid, a conjugal transfer manner is adopted to integrate the vgb gene into Streptomyces gilvosporeus genome to obtain the recombinant gene engineering strain capable of being directly used for natamycin fermentation production, and VHb expression in the recombinant strain can be provided for effectively solving oxygen supply and demand contradiction in natamycin fermentation production so as to substantially increase natamycin yield, reduce production cost and bring great economic benefits.

The invention provides a cable gallery operation positioning protector of a power distribution system. The cable gallery operation positioning protector comprises a helmet and an oxygen production device connected with the helmet, wherein the helmet is provided with a helmet shell and a glass face mask; the glass face mask and the helmet shell are movably connected; the helmet shell is provided with a wireless communication device, a rechargeable battery, a positioning device, a lighting device, an oxygen content sensor used for sensing the oxygen content in a cable tunnel, a control device, a temperature controller, a detection assembly, a cooling fan, a carbon monoxide detection module, a wireless interphone, a facial recognition camera and an environment camera; the inner surface of the helmet shell is coated with an anti-radiation isolating layer, an LED ultraviolet lamp and a negative-ion generator are arranged in the helmet shell, and a concealed satellite receiving antenna is also arranged in the helmet shell. The cable gallery operation positioning protector is diversified in function and compact in structure, the personal safety of operating personnel is guaranteed, meanwhile, the cable gallery operation positioning protector also has the wireless communication function, so that people can conduct the operation at the construction site conveniently, and the work efficiency is improved; through the positioning device, the location of a wearer is rapidly locked.

The invention relates to oxygen generation equipment of a composite medical molecular sieve center, which comprises a main gas supply source, an auxiliary gas supply source and a backup gas supply source which can continue to supply oxygen when the main gas supply source and the auxiliary gas supply source are shut down at the same time, the main gas supply source, the auxiliary gas supply source and the backup gas supply source share an air balancing tank, an oxygen balancing tank and an oxygen separating cylinder which has functions of equalizing pressure and equalizing flow, the auxiliary gas supply source are arranged beside and in parallel with the main gas supply source to auxiliary supplement oxygen for the main gas supply source, and the backup gas supply source continues to supply oxygen when the main gas supply source and the auxiliary gas supply source are shut down at the same time.

The invention provides a substation maintenance operation monitoring safety protection device. The external surface of a shell is provided with a solar cell panel, a lighting device, an oxygen content sensor, a control device, a temperature controller, a detection assembly, a heat radiation fan, a power storage device, an SF6 sensing module, and a carbon monoxide detection module, the SF6 sensing module is used for sensing the concentration of sulfur hexafluoride in an environment and transmitting sensed data to the control device, the control device compares the sensed data and can remind a user that the current environment is in an early warning state when the data exceeds an early warning value, and the control device also can transmit the fact that the smoke amount, the high-light amount, the temperature amount and the humidity amount exceed preset values to a host computer through a wireless communication device so that management personnel of the host computer understands condition information of the internal environment of the substation in real time, correct command can be carried out in time, and the personnel safety is protected.

The invention provides a monitoring safety device for electrical equipment inspection operation. A solar cell panel, an illuminating device, an oxygen content sensor, a control device, a temperature controller, a detection component, a cooling fan, an electricity storage device, a sulfur hexafluoride sensing module and a carbon monoxide detection module are arranged on the outer surface of an electrical plastic shell. The sulfur hexafluoride sensing module is used for sensing the concentration of sulfur hexafluoride in the environment and transmitting sensed data to the control device. The control device conducts sensed data comparison and reminds a user that the current environment is in an early warning state when the sensed data exceed an early warning value, and the control device can also transmit smoke amount, hard light amount, temperature value and humidity value which exceed preset values to an upper computer through a wireless communication device, so that upper compute management personnel can learn the internal environment condition of electrical equipment in real time and give correct commands in time to guarantee personnel security.

The invention provides a monitoring and protection system for operations of a power supply and distribution system in a low oxygen environment. The monitoring and protection system comprises helmets provided for the personnel to wear on the operating site and a cloud server which is in communication connection with each helmet, and is characterized in that the cloud server and each helmet take an SDH (Synchronous Digital Hierarchy) loop network as a communication medium, and the cloud server realizes synchronous sampling for data of each helmet by adopting an IEEE 1588 synchronization method; switches supporting an IEEE 1588 communication protocol are uniformly arranged in a low oxygen environment area so as to realize network connection between each helmet and the cloud server and network connection between the helmets; each helmet is provided with a helmet shell and a glass mask; the glass mark is movably connected with the helmet shell; and data information of each helmet is uploaded to the cloud server in real time, so that the cloud server is enabled to master operation information in the low oxygen environment in real time, and the monitoring personnel is enabled to command timely and accurately.

The invention relates to auxiliary energy-saving medical molecular sieve center oxygen generation and medical compressed air integrated equipment, which comprises a main air source and an auxiliary air source. The main air source and the auxiliary air source share one air balance tank, one oxygen balance tank and an oxygen distribution cylinder with a pressure and flow equalizing effect. The auxiliary air source is abreast arranged beside the main air source and is used for conducting auxiliary and supplementary air supply to the main air source.

The invention provides an operation monitoring protective device for a sulfur hexafluoride power distribution room. According to the operation monitoring protective device, a solar panel, a lighting device, an oxygen content sensor, a control device, a temperature controller, a detecting assembly, a cooling fan, an electricity storage device, a sulfur hexafluoride sensing module and a carbon monoxide detecting module are arranged on the outer surface of a shell, wherein the sulfur hexafluoride sensing module is used for sensing the concentration of sulfur hexafluoride in the environment, and transmitting the sensed concentration of sulfur hexafluoride to the control device; when any one of the concentration of sulfur hexafluoride, the amount of carbon monoxide, the amount of smoke, the amount of strong light, the amount of the temperature and the water content exceeds a prewarning value, the control device controls an alarm Lc to send out alarming sounds for reminding a user that the current environment is in the early warning state, meanwhile, the control device transmits the condition that the amount of smoke, the amount of strong light, the amount of temperature and the water content exceed the preset value to an upper computer through a wireless communication device, so that the manager of the upper computer can know the information of the environmental condition inside the power distribution room in real time, then the manager makes the correct conduction in time, and finally, the personnel security is protected.

The invention discloses a ventilating pipe for a microcarrier cell reactor, comprising a central ventilating pipe (1), wherein the bottom end of the central ventilating pipe (1) is provided with an air outlet hole (11); the central ventilating pipe (1) is externally provided with a sleeve (2); the sleeve (2) comprises a ventilating network pipe (21) and a defoaming network pipe (23) arranged above the ventilating network pipe (21); a connecting pipe (22) is arranged between the ventilating network pipe (21) and the defoaming network pipe (23); and the cross-section area of each mesh of the ventilating network pipe (21) is smaller than that of each microcarrier in the microcarrier cell reactor, and is smaller than that of the air outlet hole (11). The ventilating pipe disclosed by the invention has the advantages that not only can the oxygen supply need of cell culture be met, but also the damage caused to cells in the ventilating process can be avoided, and the survival rate of cell culture is increased. In addition, the invention also provides the microcarrier cell reactor comprising the ventilating pipe, and the microcarrier cell reactor has the same effect.

The invention provides an external cooling type low pure oxygen air separation system and method. The external cooling type low pure oxygen air separation system comprises a lower tower, a condensing evaporator, an oxygen inlet, an oxygen heat exchanger, a nitrogen heat exchanger, a throttle valve and a delivery pipeline; the condensing evaporator is arranged at the top of the lower tower; the throttle valve is arranged on an outer side of the lower tower; liquid oxygen is fed into the condensing evaporator through the oxygen inlet; raw material air is precooled by the heat exchanger to reach a saturation temperature before going into the bottom of the lower tower, and nitrogen in the raw material air rises to the top of the lower tower and goes into the condensing evaporator; one part of the nitrogen exchanges heat with the liquid oxygen in the condensing evaporator and thus is condensed into liquid nitrogen for flowing black, while the other part of the nitrogen is discharged out of the condensing evaporator and reheated by the nitrogen heat exchanger to reach a normal temperature before being recovered; the liquid oxygen is transformed into oxygen that is discharged out of the condensing evaporator and reheated by the oxygen heat exchanger to reach the normal temperature before being recovered; the liquid oxygen staying at the bottom of the lower tower is discharged out of the lower tower and delivered into the condensing evaporator at the top of the lower tower through the delivery pipeline with the throttle valve to serve as a cold source taking part in the heat exchange process.

The invention relates to auxiliary medical molecular sieve center oxygen generation and medical compressed air integrated equipment, which comprises a main air source and an auxiliary air source. The main air source and the auxiliary air source share one air balance tank, one oxygen balance tank and an oxygen distribution cylinder with a pressure and flow equalizing effect. The auxiliary air source is abreast arranged beside the main air source and is used for conducting auxiliary and supplementary air supply to the main air source.

The invention discloses an air separation high-pressure plate type heat exchange system and a purging method. The purging method includes the following steps that high-pressure plate type heat exchanger air channel draining and air channel positive purging reheating are conducted; high-pressure plate type heat exchanger liquid oxygen channel temporary fake piece connection is conducted; high-pressure plate type heat exchanger reheating is conducted; high-pressure plate type heat exchanger liquid oxygen channel blasting purging is conducted; and pipeline and flange resetting is conducted. The purging method is suitable for running of an independent set of air separation system or parallel running of multiple sets of air separation systems, and the problem of continuous oxygen load reducingcaused by the conditions that a high-pressure plate type heat exchanger is blocked and the heat exchange effect of the heat exchanger becomes poor is solved effectively. The air separation high-pressure plate type heat exchange system comprises the high-pressure plate type heat exchanger, and the high-pressure plate type heat exchanger comprises an air channel, a nitrogen channel and an oxygen channel.