40results about How to "Timely detection of blockage" patented technology

The invention discloses a material conveying state detecting device and a material conveying state detecting method, relates to the technical field of tobacco manufacture, and solves the technical problems that the waste of filter sticks is serious due to the fact that filter stick congestion cannot be timely found in the prior art. The material conveying state detecting device comprises a detector and a data processing device, wherein the detecting direction of the detector faces to a path which is passed by materials output by a material conveying device, the material conveying device can send material output signals to the data processing device when outputting the materials, and the detector can send a detecting signal to the data processing device when each material passes the detecting range of the detector. The data processing device can send a stop instruction to the material conveying device in the scheduled time after receiving the material output signal but not receiving the detecting signal, and the material conveying device can stop outputting the materials after receiving the stop instruction. The material conveying state detecting device and the material conveying state detecting method are used for detecting if the filter sticks are blocked.

The invention belongs to the technical field of municipal sewage and discloses a precise aeration control system for sewage treatment fuzzification, which comprises a front end instrument, a frequencyconversion system and a back end control system. The back end control system comprises a PLC control system, a touch screen and a fuzzy controller; a programmable logic controller of the PLC controlsystem is in communication with the fuzzy controller and the touch screen, respectively; a fuzzy control method based on a precise aeration control system fuzzy controller is provided. The precise aeration control system and the fuzzy control method for sewage treatment fuzzification in the invention solve the problems that the traditional control system can interfere with the work of a biologicalsystem due to high energy consumption and too large fluctuation, a failure of the whole control system is caused after some instrument in the system breaks down, and inaccurate system measurement parameters cause wrong control output.

The invention discloses an intelligent feeding detection mechanism of a 3D printer. The intelligent feeding detection mechanism comprises a channel as well as a feeding sensor, a feeding speed sensor and a control system, wherein a printing material passes through the channel; signal receiving ends of the feeding sensor and the feeding speed senor are both connected with the channel; the feeding sensor is used for acquiring whether the printing material passes through the channel; the feeding speed sensor is used for acquiring the feeding speed of the printing material inside the channel; the control system is used for controlling the printer to stop working and to make an alarm when the feeding sensor senses that no material is fed into the channel or the material is not sufficient and the information is transmitted to the control system, and used for controlling the printer to stop working when the feeding speed sensor senses that the feeding speed of the printing material is zero and the information is transmitted to the control system. Through the adoption of the intelligent feeding detection mechanism, whether the material is blocked or insufficient in the printing process or not can be tested, and material replacement can be promoted, so that the printing success rate is ensured.

The invention relates to an arrangement for conditioning air which is to be introduced into a space, especially the interior space of a motor vehicle, said arrangement comprising devices (4, 4a, 4b) for purifying the air to be conditioned in an optionally multi-stage purification process, and devices (7, 8) for producing and / or supplying the neutral air thus obtained with substances having an olfactive action. According to the invention, the arrangement is provided with an air speed sensor (6) for determining the respective actual air volume flow rate, and means for controlling the quantity of olfactive substances to be dosed, according to the output signal of the air speed sensor (6).

The invention relates to a prompting method and a prompting device for a blocked area of cleaning equipment, belongs to the technical field of cleaning equipment detection, and solves the problem thatinternal blockage and a blocked position cannot be prompted in the prior art. The prompting method comprises the following steps of: acquiring a front flow velocity value of each area in a fluid channel of the cleaning equipment in a detection period; acquiring the current rotating speed of a negative pressure motor of the cleaning equipment, and obtaining the matching flow speed value of each area in the fluid channel of the cleaning equipment according to the current rotating speed; calculating a flow velocity difference value between the current flow velocity value and the matching flow speed value of each area; if the flow velocity difference value of any area is not smaller than the flow velocity threshold value, outputting blocked area information and blockage information; and sending the blocked area information and the blockage information to a display device of the cleaning equipment and / or a client. According to the method, the area, blocked by foreign matters, in the cleaning equipment can be analyzed, a prompt is given to a user, cleaning is conducted in time, and the influence of blockage on use of the cleaning equipment is avoided.

The invention discloses a laser welding automatic following protective gas jetting blowing system. The laser welding automatic following protective gas jetting blowing system comprises a jetting blowing device provided with a jetting rod, the jetting rod is connected with a jetting head, a jetting blowing passage of the jetting rod is provided with a laser positioning component, after protective gas analog signals sent by the laser positioning component are sent out from a jetting mouth, an actual position of protective gas jetting blowing is labeled out in a form of laser projection, the system further comprises a position detection device, a coordination control device and a flow quantity and pressure detection control device, the welding line middle position which finally needs to be jetted and blown is taken as a target position, the position detection device is used for detecting the distance or overlap degree of the actual position and the target position, the coordination control device is used for maintaining overlap or automatic following of the two positions, a flow quantity and pressure detection control component is used for detecting the unimpeded situation of the protective gas jetting blowing passage and performing flow quantity adjustment according to the detected result, a jetting hole of the jetting head is of a round hole shape, the hole wall of the jetting hole is provided with grooves which are evenly arranged along the periphery wall, and the groove bottom of each groove is square.

The invention provides a high-efficiency automatic coke oven lid temperature monitoring device which comprises a wireless transceiver device, a charging car control device, a cloud server and a charging car lid removal machine, wherein the charging car control device is arranged on a charging car and is connected with the cloud server through the wireless transceiver device; and the charging car lid removal machine is connected with the cloud server through the wireless transceiver device. According to the high-efficiency automatic coke oven lid temperature monitoring device, the cloud server is utilized for monitoring, and the temperature detection device is arranged on the charging car lid removal machine body, so that high-efficiency full-automatic coke oven lid temperature monitoring can be realized, whether the coke oven is blocked or not is detected by detecting the temperature nearby a coal port, blockage of the coal port of a coke oven carbonization chamber can be discovered in time, the coal blockage failure caused by coal charging when the coal port is blocked is avoided, the security of treatment personnel is ensured, the environmental pollution caused by treatment of the blockage of the coal port in the coal charging process is reduced, and the hand sweeping burden is alleviated.

The invention discloses a serial-connection circulating pressure grouting device and a pressure grouting method. The device comprises a grout storage barrel, a pressure grouting pump with a pressure gage, a plurality of prestressed pipes, a pressure grouting port valve, a grout outlet valve, an inflow grout thickness detector, an outflow grout thickness detector and pressure grouting pipes. The prestressed corrugated pipes are distributed in a concrete prestressed component in parallel and connected in series to form a prestressed pipe bundle, the grout storage barrel, the pressure grouting pump and the prestressed pipe bundle are sequentially connected in series through the pressure grouting pipes to form a circulating loop, the pressure grouting port valve is arranged on the pressure grouting pipe between the pressure grouting pump and the prestressed pipe bundle, the grout outlet valve is arranged on the pressure grouting pipe between the prestressed pipe bundle and the grout storage barrel, the inflow grout thickness detector is arranged on the pressure grouting pipe between the grout storage barrel and the pressure grouting pump or on the pressure grouting pipe between the pressure grouting pump and the prestressed pipe bundle, the outflow grout thickness detector is arranged on the pressure grouting pipe between the prestressed pipe bundle and the grout storage barrel, compact pressure grouting can be guaranteed through circulating pressure grouting, and grout pipes can be prevented from being blocked.

The invention discloses a rolling brush mechanism and a closed space ventilating device thereof. The closed space ventilating device comprises an air inlet pipeline and an air exhaust pipeline, wherein one end of the air inlet pipeline and one end of the air exhaust pipeline are arranged in an underground air channel and are provided with an air inlet bin and an air exhaust bin respectively; the other end of the air inlet pipeline and the other end of the air exhaust pipeline are arranged in a ventilating area, and an air exhaust wind bin is arranged at the end, arranged in the ventilating area, of the air exhaust pipeline; the air inlet pipeline and the air exhaust pipeline are provided with an air inlet fan and an air exhaust fan respectively, and the air inlet fan and the air exhaust fan are used for forming air convection in the air inlet pipeline and the air exhaust pipeline respectively; and the upper end parts of the air inlet bin, the air exhaust bin and the air exhaust wind bin are separated by grids. According to the mechanism and the device, the ventilating area is further provided with a washing device, the air inlet pipeline is further provided with a dust removing device, the dust removing device is provided with a differential pressure mechanism, the dust removing device, the air inlet pipeline and the air exhaust pipeline are provided with rolling brush mechanism bodies, so that brushing and dredging of the grids, a first dust removing net and a second dust removing net are achieved through the rolling brush mechanism bodies.

The invention discloses a box-type dust collecting device, which comprises a bracket, vertical plates and filter wool, wherein the bracket has a three-dimensional structure, the top of the bracket is sealed, the bottom of the bracket is provided with an opening, and supporting rods are arranged on the lateral surfaces of the bracket; the vertical plates are detachably arranged on the supporting rods of the bracket, and the vertical plates are provided with grids for fully covering the four lateral surfaces of the bracket; and the filter wool is detachably fixed on the vertical plates on the inner lateral surfaces of the bracket, and the filter wool fully covers the grids on the vertical plates. Once the box-type dust collecting device is plugged during use, after an operator halts, the vertical plates are detached, then new filter wool is exchanged, the vertical plates are arranged on the bracket for startup production, and the exchanged filter wool can be separately cleaned and reclaimed with short cut wool yarns, so the operation is convenient and simple, and the dust collecting efficiency is improved.

The invention provides a coking circulating ammonia water self-cleaning and parallel heat absorption device and an operation control method thereof. The device comprises a first heat absorption exchanger, a second heat absorption exchanger, a third heat absorption exchanger, a circulating ammonia water pump, a softened water pump, a sewage collection tank, a sewage pump and a central controller. Compared with the prior art, the parallel heat absorption device has the effects that the parallel mode of double heat absorption exchangers is adopted for heat absorption exchange, so that the heat absorption exchange efficiency is high; meanwhile, a standby heat absorption exchanger is arranged, and the heat exchange stability of the device can be improved; in the procedure of coking circulatingammonia water heat absorption, intelligent detection and judgment on blockage of the heat absorption exchangers can be achieved; and the high efficiency cleaning of the heat absorption exchangers canbe achieved, so that the long-time automatic operation of the device is achieved.

The invention discloses a detection method of an air conditioner greasy blockage breakdown and an air conditioner. In the detection method, when it is confirmed that the air conditioner is in a non-defrosting working mode, a current first power value of a compressor is obtained, and whether the first power value is greater than a preset threshold value or not is judged; and when the first power value is smaller than or equal to the threshold value, the greasy blockage breakdown is confirmed. According to the technical scheme of the detection method, by judging the relative magnitude of the power value of the compressor after defrosting is conducted and the preset threshold value, an expansion valve greasy blockage phenomenon caused by improving of the viscosity of a flammable refrigerant after low-temperature defrosting is conducted on the air conditioner can be timely detected, reducing of the air conditioner capability and the power caused by no-load running of the compressor is avoided, the service life of the compressor is ensured, meanwhile the using comfort of the air conditioner with the novel refrigerant is further improved, and reference bases are further provided for enabling novel compressor machine oil to be better matched with the novel refrigerant in future.

The invention discloses a corrosion-resisting explosion-proof water pump. The water pump comprises a shell, a driving motor and a water suction pump. The driving motor and the water suction pump are fixedly arranged in the shell, the driving motor is in transmission connection with the water suction pump, the driving motor is composed of a motor body and an end cover, and the motor body is fixedly connected with the end cover; an annular circulating water tank is fixedly arranged in the end cover, and a detection contact is fixedly arranged at the top end of the water suction pump; a buzzer is fixedly arranged at the top end of the shell; a wear-resisting ceramic coating is arranged on the inner wall of the water suction pump, and a teflon coating is arranged on the outer wall of the water suction pump; and a TPU layer is arranged outside the teflon coating. The wear-resisting ceramic coating is arranged on the inner wall of the shell, the anti-corrosion capability and the cavitation erosion prevention property of a filter can be greatly improved, and service life of the water pump is prolonged; the arranged teflon coating has the exposition-proof effect, and the bursting danger of a device cylinder can be prevented; and the TPU layer is arranged, and the mechanical strength and the bearing capability of the equipment are improved.

The invention provides an automatic Summa canister sampling system. The automatic Summa canister sampling system comprises multiple sets of sampling gas channels and sampling branches; a pressure transmitter is connected among the sampling gas channels and the sampling branches; the automatic Summa canister sampling system further comprises a solar cell panel, the angle of which is adjustable; thesolar cell panel is divided into a first cell panel and a second cell panel, which are hinged together; a first cylinder is connected between the bottom surfaces of the first cell panel and the second cell panel; the input end of a PLC is connected to the pressure transmitter so as to receive a pressure signal; the output end of the PLC is connected to an electromagnetic valve so as to control onand off of the electromagnetic valve; the PLC further comprises a wireless transmission module; and remote connection with a server is realized. The system can start Summa canister sampling and switching in a timed manner by receiving a remote control instruction; the labour force is saved; the running state of the system can be monitored by monitoring change of a pressure value in real time; faults, such as blockage of a current limiting valve or gas leakage of a Summa canister, can be found in time; the angle of the solar cell panel can be properly adjusted; solar energy is sufficiently utilized; and the solar cell panel is automatically folded in rainy and snowy weather, so that a rain shelter is formed.

The invention relates to spray coater nozzle blocking testing equipment and a spraying system with same. A first conveying device is provided with a first weighing device for detecting the weight of ato-be-sprayed board. A second conveying device is provided with a second weighing device for detecting the weight of a sprayed board. An actual spraying amount is obtained through a difference between the weight value which is detected by the first weighing device and the weight value that is detected by the second weighing device. Then the difference between a preset spraying amount and the actual spraying amount is calculated. A controller monitors whether the difference exceeds a preset range, thereby finding nozzle blocking in time in a spraying process. Compared with a traditional mode of performing artificial monitoring on the nozzle blocking condition, the sprayer coater nozzle blocking testing equipment and the spraying system have advantages of effectively reducing man cost and greatly improving testing accuracy. Furthermore because opening of the spray coater for observation is not required, spray spreading is prevented, thereby facilitating environment protection.

The invention relates to a monitoring system of an intermediate cooling system of an aluminum oxide decomposing tank. The monitoring system comprises a PH sensing module, a temperature sensing module,a control module, a display module and a storage module, wherein the PH sensing module is used for collecting PH value data of circulating water from a circulating water inlet and a circulating wateroutlet of a heat exchanger and transmitting the data to the control module; the temperature sensing module is used for collecting temperature data of the circulating water from the circulating waterinlet and the circulating water outlet of the heat exchanger and transmitting the data to the control module; the control module receives the data transmitted by the PH sensing module and the temperature sensing module, carrying out operation comparison on the received data to obtain an analysis result, and outputting a working instruction to the display module according to the analysis result; the display module displays the analysis result of the controller; the storage module is used for storing an operation result of the control module and the received data. Real-time monitoring for the intermediate cooling system is realized; seepage of decomposing liquid and blockage of the heat exchanger can be found in time to avoid accident expansion.

The invention discloses a water pump with a good cooling effect. The water pump comprises a shell, a drive motor and a water suction pump. The drive motor and the water suction pump are fixedly arranged in the shell. The drive motor is in transmission connection with the water suction pump. The drive motor is composed of a motor body and an end cover. The motor body is fixedly connected with the end cover. An annular circulating water tank is fixedly arranged in the end cover. A detection contact is fixedly arranged at the top end of the water suction pump. A buzzer is fixedly arranged at the top end of the shell. The water pump is simple in structure, low in manufacturing cost and high in practicality. By means of the annular circulating water tank, the temperature of the drive motor can be lowered, and the situation that the drive motor is exploded or damaged due to too high temperature, and consequently the normal work of the water pump is influenced is avoided. By means of the detection contact and the buzzer, the detection contact can detect whether blockage happens in the water suction pump or not; and when blockage happens, the detection contact detects blockage, a signal is sent to the buzzer so that the buzzer can tweet, blockage is found conveniently in time, and the situation that a machine body runs in an idling manner, and consequently the service life of the water pump is shortened is avoided.

The invention discloses a circulating purification device for fertilizer waste liquid. The circulating purification device comprises a purifier shell; a feeding pipe is welded to the middle of the upper end of the purifier shell; a discharging pipe is welded to the middle of the bottom end of the purifier shell; a filter box is arranged in the middle of the interior of the purifier shell; an opening is formed in the upper end of the filter box; and a filter screen is installed at the opening in the bottom end of the filter box. The device has the beneficial effects that the filter box and a limiting frame are arranged, fertilizer waste residues in waste liquid are collected in the filter box after being filtered by the filter screen, and when the fertilizer waste residues need to be collected and utilized, a rotating handle of the limiting frame is rotated to unfix a fixed seat, and the fixed seat and the filter box can be pulled out to collect and utilize the waste residues; and a first inspection fan is arranged, so that when the filter screen is blocked due to excessive accumulation of the waste residues, a user can observe that the rotation of a first outer fan of the first inspection fan is obviously slowed down or stopped, and the blockage of the filter screen can be found in time.

The invention relates to a novel coal cutter hydropower blocking device. In order to find out and handle with blockage of a nozzle of a coal cutter in time, the novel coal cutter hydropower blocking device comprises a high-pressure water pipe, a pressure switch, a coal cutter electric control box and a nozzle, and further comprises a counteracting induction mechanism. The counteracting induction mechanism comprises a swing rod, a reed switch normally-open switch, a front limiting column and a rear limiting column. The lower end of the swing rod is fixed to a fixed shaft through a bearing. Thenozzle is fixed to the upper portion of the swing rod. A short screw is welded to the front side of the swing rod and sleeved with a balance weight self-locking nut. The direction of a torsional moment of the balance weight self-locking nut is opposite to the direction of a torsional moment generated by counteracting force of water mist during water spraying of the nozzle. The reed switch normally-open switch is fixed to the upper side of the swing rod and connected with a PLC module through the coal cutter electric control box. The front limiting column and the rear limiting column are arranged on the two sides of the swing rod correspondingly. The novel coal cutter hydropower blocking device can effectively reduce water-free coal mining accidents and is suitable for an underground coal mine fully mechanized face.

The invention discloses a cotton filling machine for doll production and a using method, and belongs to the technical field of toy production equipment.The cotton filling machine comprises a main body assembly, the main body assembly comprises a cotton feeding assembly and a processing box, the cotton feeding assembly comprises a machine shell, an induced draft fan and a collecting hopper, the induced draft fan is installed in the machine shell, the collecting hopper is welded to one side of the machine shell, and a feeding port is formed in the front side of the machine shell; the treatment box is installed at the top of the machine shell through bolts, a discharging cavity, a scattering cavity and a transition cavity are formed in the treatment box and are sequentially arranged from top to bottom, a through opening is formed in one side of the transition cavity, a material conveying pipe is installed between the through opening and the machine shell, and an auxiliary assembly and a scattering assembly are arranged in the treatment box; a cotton filling assembly is arranged on one side of the processing box, a control box is arranged on the processing box, and a power source, a control unit, a switch group, a first indicator lamp, a second indicator lamp and a digital display instrument are arranged on the control box. The fluffy fabric has the advantages of being good in fluffy effect and convenient to detect.

The invention discloses a box-type dust collecting device, which comprises a bracket, vertical plates and filter wool, wherein the bracket has a three-dimensional structure, the top of the bracket is sealed, the bottom of the bracket is provided with an opening, and supporting rods are arranged on the lateral surfaces of the bracket; the vertical plates are detachably arranged on the supporting rods of the bracket, and the vertical plates are provided with grids for fully covering the four lateral surfaces of the bracket; and the filter wool is detachably fixed on the vertical plates on the inner lateral surfaces of the bracket, and the filter wool fully covers the grids on the vertical plates. Once the box-type dust collecting device is plugged during use, after an operator halts, the vertical plates are detached, then new filter wool is exchanged, the vertical plates are arranged on the bracket for startup production, and the exchanged filter wool can be separately cleaned and reclaimed with short cut wool yarns, so the operation is convenient and simple, and the dust collecting efficiency is improved.

The invention relates to the technical field of data warehouses, in particular to a data processing system introducing a data warehouse construction technology. The system comprises a data source unit, a data processing unit, a data query statistical analysis unit, a metadata unit and a management center unit; the data source unit is used for establishing a database file, a plane file, an html file and an xml file, and the data processing unit is used for processing data in the data source unit; the data query statistical analysis unit is used for uniformly recording and analyzing informationdata, the metadata management unit is used for storing data in the data query statistical analysis unit, and the management center unit is used for managing and maintaining the whole system.Accordingto the invention, user query can be provided in a remote access service mode; The system and method have higher flexibility, controllability and professional functionality, facilitate query and analysis of data, and are high in information relevance.