161 results about "Device chamber" patented technology

The utility model relates to the technical field of heating and ventilation equipment, and discloses a refrigerant heat dissipation assembly, a heating and ventilation equipment outdoor unit and heating and ventilation equipment, the refrigerant heat dissipation assembly comprises a radiator, a pressing plate and a refrigerant heat dissipation pipe, the radiator is provided with a positioning part, the pressing plate is connected with the radiator and provided with a positioning matching part, and the positioning matching part is matched with the positioning matching part. The positioning matching part and the positioning part are connected in a positioning mode and are in guide fit in the connecting process, and the refrigerant radiating pipe is located between the radiator and the pressing plate and pressed on the outer surface of the radiator by the pressing plate. According to the refrigerant heat dissipation assembly, the refrigerant heat dissipation pipe is tightly pressed on the heat dissipation device through the pressing plate, the positioning part is arranged on the heat dissipation device, the positioning matching part matched with the positioning part is arranged on the pressing plate, accurate pre-positioning is conducted on connection of the pressing plate and the heat dissipation device through the positioning part and the positioning matching part, assembling is convenient, and the working efficiency is improved. And meanwhile, shaking of the radiator, the pressing plate and the refrigerant radiating pipe is reduced, so that the whole radiating assembly is kept stable, the radiating efficiency is improved, and the working stability of the electric control component is ensured.

The utility model relates to the technical field of power battery testing, in particular to a battery integration testing system. Comprising an upper computer and a battery integration test cabinet. The battery integration test cabinet comprises a cabinet body, a temperature adjusting device, an expansive force acquisition device, an overload test device and a middle computer. An equipment chamber and a plurality of test chambers are formed in the cabinet body, and the temperature adjusting equipment, the expansive force collecting equipment and the overload test equipment are all installed in the equipment chamber; the upper computer is in communication connection with the middle computer, and the middle computer is in communication connection with the temperature adjusting device, the expansive force collecting device and the overload testing device. According to the utility model, the battery testing efficiency is improved.

The invention discloses a hydrogen-related closed cabin for a fuel cell, and relates to the technical field of hydrogen-related closed cabins, the hydrogen-related closed cabin comprises a cabin body, the cabin body comprises a closed chamber and an equipment chamber, and the closed chamber is internally provided with a fresh air inlet system, a temperature and humidity adjusting system, a hydrogen concentration monitoring system and a data acquisition monitoring system; the side wall of the cabin body is provided with a through edge groove communicated with the equipment chamber, the inner wall of the through edge groove is fixedly connected with a frame, the frame is provided with a plurality of evenly distributed blocking channels, the two sides of the frame are provided with an external box and an internal box in an attached mode respectively, and the external box and the internal box move synchronously and are matched with the blocking channels in a switching mode. According to the hydrogen-related closed cabin for the fuel cell, by arranging the structures such as the blocking channel, the external box and the internal box, impurity cleaning and ventilation and heat dissipation are not influenced mutually, meanwhile, blocking blowing and sucking are carried out synchronously, the filter screen can shake, and the use efficiency of the hydrogen-related closed cabin is improved.

The utility model relates to the technical field of heating and ventilation equipment, and discloses an electric control assembly, a heating and ventilation equipment outdoor unit and heating and ventilation equipment, the electric control assembly comprises a circuit board, a power device and a radiator, the circuit board is provided with a first surface and a second surface which are oppositely arranged, the first surface is used for arranging a non-power device, and the power device is arranged on the second surface; the radiator is arranged on the second face, the power device is arranged between the circuit board and the radiator, and the heat dissipation piece is used for dissipating heat of the power device. According to the electric control assembly, the power device and the radiator are arranged on the second surface of the circuit board, when the circuit board is disassembled, operation can be carried out from one side of the first surface opposite to the second surface, and no obstruction of the radiator exists, so that the circuit board is convenient to disassemble, and the disassembly efficiency is improved.

The application relates to the field of methanol generator technology, and discloses a protection device for a methanol generator with smoke removal and heat dissipation, which comprises a box container containing a methanol generator set, a methanol fuel chamber, an exhaust chamber, a cabin chamber and a charging device chamber are arranged in the box container, the methanol fuel chamber is used for containing a methanol fuel tank, the cabin chamber is used for containing the methanol generator set, a methanol concentration sensor is installed in the methanol fuel chamber, a liquid nitrogen tank is further arranged in the methanol fuel chamber, a spray pipe is connected to the outlet of the liquid nitrogen tank, a spray head is arranged on the spray pipe, an electric valve is installed at the outlet of the liquid nitrogen, and the methanol concentration sensor is electrically connected with the electric valve. The application has the effects of preventing the methanol fuel tank from catching fire due to methanol leakage during use, protecting the equipment safety of the methanol generator set and the use safety of a user.

This utility model relates to the field of flywheel shell cleaning technology, and discloses a flywheel shell surface cleaning device, including a vacuuming assembly and a vacuum head connected to the vacuuming assembly. The vacuuming assembly includes a housing, with a vacuum fan connected to the top of the housing. The housing contains a vacuum chamber and an equipment chamber. A rotating head is rotatably connected to the equipment chamber via a drive assembly. A vacuum pipe is connected to the center of the rotating head. A dust collection box is pulled out of the vacuum chamber, and an air hole is opened on the bottom surface of the dust collection box. One end of the vacuum pipe is connected to the air hole. The vacuum head includes a cleaning roller with a cavity inside. A connecting pipe connected to the cavity is connected to the top of the cleaning roller and is connected to the rotating head. The outer wall of the cleaning roller has a plurality of vacuum holes arranged in a circular array, and the bottom surface has a plurality of vacuum holes arranged in a circular array. Bristles are arranged in a circular array on the outer wall of the cleaning roller in areas where there are no vacuum holes. Through the coordinated operation of the vacuuming assembly and the vacuum head, dust in the hard-to-reach corners of the flywheel shell is effectively cleaned, improving cleaning efficiency and quality.

The utility model relates to the technical field of RFID equipment, and discloses RFID checking equipment capable of being quickly disassembled and assembled, which comprises an RFID scanner, an equipment chamber is arranged in the RFID scanner, a cover plate is connected onto the equipment chamber, a storage battery and an RFID reader-writer are respectively arranged in the equipment chamber, first slots are symmetrically arranged at one end in the equipment chamber, and second slots are symmetrically arranged at the other end in the equipment chamber. The RFID scanner is internally provided with U-shaped sliding holes communicated with the first inserting grooves, one side of the RFID scanner is provided with a sliding groove, the sliding groove is located between the two sliding holes and communicated with the two sliding holes, the sliding groove is internally provided with a pushing block through a first reset spring in a connected mode, and a U-shaped clamping piece is arranged in the sliding holes in an inserted mode. The face, away from the first inserting groove, of the U-shaped clamping piece is connected with a second reset spring connected with the inner wall of the sliding hole, an inserting block matched with the first inserting groove is arranged on one face of the cover plate, and an inserting hole is formed in the inserting block. The cover plate of the equipment is convenient and rapid to disassemble and assemble, the equipment is convenient to overhaul and maintain, and meanwhile, the equipment adopts modular design and is combined for use according to requirements, and the use modes are flexible and diverse.

The invention provides a rubber roller vulcanization film winding device which comprises a machine table, and a clamping mechanism for clamping and fixing a rubber roller and a film winding mechanism for winding and unwinding an isolating film are installed on the machine table. An equipment room is arranged at the lower end of the machine table, a controller for controlling electronic equipment to act is arranged in the equipment room, and manual operation is carried out through a control table on one side of the machine table. The film unwinding piece and the film winding piece are arranged on the film winding frame, isolation film winding and isolation film falling on the rubber roller can be achieved, and the working efficiency of rubber roller film winding is improved; the film winding frame is rotationally installed on the sliding table, the rotating angle of the film winding frame is controlled through the adjusting assembly, and the isolating film can be arranged in the middle or can be inclined by a certain angle in the winding process, so that the isolating film can be installed on the rubber roller in a better attached mode, folding of the isolating film is avoided, gaps and bubbles in the isolating film are reduced, and the rubber roller vulcanization effect is improved.

The utility model provides a kind of outdoor unit and heating and ventilation equipment, outdoor unit includes box, electric control support and electric control mainboard, box is equipped with maintenance opening, electric control support is installed in box, and it is limited to one side open electric control installation cavity, electric control mainboard is embedded in electric control installation cavity, along the through direction of the maintenance opening, opposite sides of the electric control mainboard are respectively equipped with first edge and second edge, the first edge is between the maintenance opening and the second edge, electric control mainboard has multiple connectors, along through direction, connector is more close to the first edge setting compared to the second edge. By setting the side edge of connector close to electric control mainboard, then installing mainboard in box by electric control support, and make the side of electric control mainboard setting connector close to maintenance opening setting, so that the wiring of electric control mainboard is convenient for user to contact from maintenance opening, to facilitate user to install and maintain the wiring of electric control mainboard, to improve user experience.

The utility model relates to the technical field of electric dust collectors, in particular to a water accumulation prevention structure of an electric dust collector, which comprises an electrostatic dust collection chamber, an equipment chamber fixedly connected to the top of the electrostatic dust collection chamber, an electric drying plate fixedly connected to the inner bottom wall of the equipment chamber, and a fixing plate fixedly connected to the interior of the equipment chamber and arranged at the top of the electric drying plate. A round hole is formed in the fixing plate, the top of the fixing plate is fixedly connected with a first sponge mat and a second sponge mat, and the first sponge mat and the second sponge mat are distributed in a W shape; through cooperative use of an electric drying plate, a fixing plate, a first sponge mat, a second sponge mat, a round hole and a humidity sensor, water vapor and moisture can be adsorbed through the first sponge mat and the second sponge mat, and meanwhile, due to the fact that the first sponge mat and the second sponge mat are distributed in a W shape, the water absorption and waterproof performance of the interior of the equipment room can be improved; and meanwhile, the equipment body can be dried through an electric drying plate, and the drying effect of the equipment is further improved.

The invention discloses a control method, equipment and system of an environment adjusting system and a computer storage medium, and relates to the technical field of environment adjusting systems.The environment adjusting system comprises a heat pump system and a heating system, the heat pump system comprises an indoor unit, the heating system comprises radiation end equipment, and the indoor unit and the radiation end equipment are both arranged in an indoor space; the method comprises the steps that under the condition that an indoor unit and radiation end equipment are both in a heating state, temperature information of an indoor space is obtained; and when the temperature information meets a preset condition, the indoor unit is controlled to stop heating, the heating system is controlled to operate so that the radiation end equipment can be in a heat supply state, and the preset condition shows that the operation working condition of the indoor unit is poor. The heating energy efficiency of each heat exchange device in the indoor space and the operation reliability of the heat pump system are improved.

An environmental chamber for an ice water impact test belongs to the field of test equipment and comprises a chamber body, a simulation chamber and an equipment chamber are arranged in the chamber body, a heating unit, a cooling unit and a pure water unit are arranged in the equipment chamber, a rotary supporting seat and a spray head are arranged in the simulation chamber, a refrigerating unit is further arranged in the equipment chamber, and the heating unit and the cooling unit are both communicated with the interior of the simulation chamber. The water purification unit comprises a heat preservation water tank, the heat preservation water tank is connected with a water purification machine through a first pipeline, and the heat preservation water tank is connected with the spraying head through a second pipeline; the refrigeration compressor is respectively connected with the first evaporator and the cooling unit through the refrigeration pipeline and the electric three-way valve, so that the environmental chamber has an ice water impact function, the availability of the environmental chamber is increased, the vacancy rate of equipment is reduced, a special ice water impact test box does not need to be additionally purchased, and the equipment purchase cost is saved.

The utility model discloses a crossing type climbing robot, and relates to the technical field of robots. Comprising a body, an obstacle crossing device is fixedly connected to the center of the top face of the body through a fixing plate, a first bowl-shaped negative pressure cavity used for being adsorbed to a wall is formed in the end, away from the body, of the obstacle crossing device, and a detection device is arranged on the outer wall of the body; the body comprises a plurality of square negative pressure cavities used for adsorbing the wall surface, the interior of each square negative pressure cavity is divided into an equipment chamber and a driving chamber through a partition plate, and a driving device used for driving the body to move is arranged in each driving chamber; a second bowl-shaped negative pressure cavity is formed in the equipment chamber, the equipment chamber is fixedly connected with a cavity bottom cover plate used for sealing the equipment chamber, and a filter screen is installed on the partition plate; the detection device, the obstacle crossing device, the driving device, the first bowl-shaped negative pressure cavity and the second bowl-shaped negative pressure cavity are electrically connected with an MCU control panel. According to the robot, the robot body can effectively and autonomously climb on a vertical wall surface and cross obstacles; and the working efficiency is effectively improved.

A refrigeration device, comprising: a box body, comprising a device chamber and a storage chamber; and a refrigeration system disposed within the device chamber, the refrigeration system comprising a compressor, a first heat exchanger and a second heat exchanger, which are connected in sequence by means of a refrigeration line. The refrigerating system further comprises a defrosting line, a defrosting portion and a first water receiving tray, two ends of the defrosting line being connected to an output end of the compressor and an input end of the second heat exchanger, respectively, and the defrosting portion being disposed on the defrosting line, and connected to the first water receiving tray.

A refrigeration device, comprising: a box (100), the box (100) comprising: a storage chamber (120) and a device chamber (110), the device chamber (110) being located above the storage chamber (120); a refrigeration compartment (160) disposed in the device chamber (110), at least one communication channel (130) being provided between the refrigeration compartment (160) and the storage chamber (120); a refrigeration system, the refrigeration system comprising: a compressor (200), the compressor (200) being disposed in the device chamber (110); a first heat exchanger (300), the first heat exchanger (300) being disposed in the device chamber (110) and located on the outer side of the refrigeration compartment (160); a second heat exchanger (400), the second heat exchanger (400) being disposed in the refrigeration compartment (160), and the compressor (200), the first heat exchanger (300), and the second heat exchanger (400) being sequentially connected by means of a refrigeration pipeline (10); and an air supply member (500) disposed beside the second heat exchanger (400), the air supply member (500) being used for conveying an airflow having undergone heat exchange by the second heat exchanger (400) into the storage chamber (120) by means of the communication channel (130).

A novel multifunctional prefabricated substation comprises a prefabricated substation body, a cooling fan, a partition plate, a short message module, a smoke detection circuit, a detection circuit and a temperature control circuit. The multiple sets of partition plates are installed at the rear end, the left end and the right end in the box body respectively to form a high-voltage switch equipment chamber, a low-voltage power distribution equipment chamber and a transformer chamber, and the space among the transformer chamber, the high-voltage power distribution equipment chamber and the low-voltage power distribution equipment chamber serves as a maintenance channel. The detection circuit is matched with a plurality of micro stroke power switches with handles; the plurality of stroke power switches are respectively arranged at the lower ends of the outer sides of the plurality of partition plates; and the smoke detection circuit, the short message module, the detection circuit and the temperature control circuit are arranged in the electric control box and are electrically connected. The whole device is relatively compact, convenience is brought to follow-up maintenance, the probability of electric shock of workers during maintenance is reduced, short messages can be automatically pushed to managers when a fire disaster occurs, and a detection circuit can automatically switch on a cooling fan to work when the temperature in the box body exceeds the standard.

The invention relates to a vertical high-pressure steam sterilizer, and belongs to the technical field of medical sterilization equipment. The sterilizer adopts a vertical three-layer integrated structure and comprises a device chamber, a disinfection chamber and a heating chamber, a micro air pump array is arranged in the disinfection chamber to actively suck steam, condensate water is shaken off through a vibration mechanism, and rapid, uniform and efficient high-pressure steam sterilization is realized by combining ultraviolet laser pre-disinfection and inclined flow channel drainage and pollution discharge design; the device is suitable for medical instruments and laboratory utensils.

The utility model relates to the technical field of heating and ventilation equipment, and discloses a heating and ventilation equipment outdoor unit and heating and ventilation equipment.The heating and ventilation equipment outdoor unit comprises a shell and a decoration ring, the decoration ring comprises a decoration ring body, the decoration ring body is provided with a first side and a second side which are opposite in the axial direction, and an annular flow guide part extending outwards in the radial direction is arranged on the peripheral face of the decoration ring body; the radial size of the annular flow guide part is gradually increased from the second side to the first side, the annular flow guide part abuts against the shell, and an axial gap is formed between the first side and the shell. The annular flow guide part is arranged and abuts against the outer wall of the shell, most rainwater is guided by the annular flow guide part to flow in the direction away from the fan blades and flows down through the decoration ring, meanwhile, the gap is formed between the first side of the decoration ring body and the shell, the first side of the decoration ring does not make contact with the shell, and therefore the decoration ring is more attractive. Water is difficult to flow into the shell from the inner wall of the decorative ring, the risk that ice collides with the rotating fan blades is reduced, and normal operation of the outdoor unit is guaranteed.

The invention relates to the technical field of heating and ventilation equipment, and discloses a heating and ventilation equipment outdoor unit and the heating and ventilation equipment. The heating and ventilation equipment outdoor unit comprises a machine shell, a compressor device and a piping device, a compressor bin is arranged in the machine shell, the compressor device is arranged in the compressor bin, and the compressor device comprises a shell and a compressor arranged in the shell; the four-way valve assembly comprises a valve body, a first pipe joint and a second pipe joint, the two ends of the first air return pipe are communicated with the compressor and the interval space respectively, and the two ends of the second air return pipe are communicated with the interval space and the first pipe joint respectively; two ends of the exhaust pipe are respectively communicated with the interval space and the second pipe joint. The gas-liquid separation device is integrated on the compressor device, additional pipeline connection is reduced, system pipelines are saved, the cost is saved, and the disassembly and assembly efficiency is improved.

The present application relates to incubator technical field, especially a kind of pepper planting environment simulation experiment device, including incubator, bracket, switch door, camera mechanism and touch display screen, incubator has a cavity, cavity is divided into culture room and equipment room by partition, culture room has an opening, switch door can control the opening or closure of culture room opening, switch door includes inner door and outer door, camera mechanism is located in culture room, lifting mechanism is located in equipment room, lifting mechanism is driven connection camera mechanism, lifting mechanism drives camera mechanism to do lifting movement in culture room;Touch display screen, touch display screen is located on the outer side wall of outer door, touch display screen is electrically connected camera mechanism and lifting mechanism to realize posture control and image acquisition.The image of plant on each layer tray is automatically photographed by the camera mechanism, and it is not necessary to take out and shoot, which avoids the energy consumption caused by frequent opening and closing of door.

The utility model provides a protective cover device for an explosion-proof motor of an air conditioner outdoor unit. The utility model particularly relates to a protection device of an explosion-proof motor which is vertically mounted on a condensate fan motor of an outdoor unit of central air-conditioning equipment. The protective cover device for the explosion-proof motor of the air conditioner outdoor unit comprises a conical protective cover, a support and a mounting frame, the protective cover is made of SS316L stainless steel and covered with an anti-corrosion coating, the cone angle is designed to be 90-120 degrees, falling hard objects or metal can be effectively guided to slide off and prevented from entering a heat dissipation fan blade area of the motor, and impeller damage and spark explosion risks are prevented. The support is composed of a plurality of supporting frames, one end is welded to the inner edge of the protective cover, the other end is connected with the installation frame through kidney-shaped screw holes, and the support is matched with the U-shaped installation holes to achieve fine adjustment of the installation position and adapt to different motor models. The explosion-proof motor protection device can be widely applied to the field of explosion-proof motor protection of the condensation fan of the outdoor unit of the explosion-proof central air-conditioning equipment.

The invention discloses a cold and hot air isolated semiconductor refrigeration fan, and aims to provide a semiconductor refrigeration fan which can effectively isolate cold and hot air of the semiconductor refrigeration fan, avoid mutual interference and influence between the cold and hot air and facilitate reduction of power consumption of a semiconductor refrigerator. A partition plate is arranged in the shell and divides an inner cavity of the shell into a main chamber and a control chamber, the main chamber comprises a power chamber and a refrigerator chamber, a partition plate is arranged in the refrigerator chamber and divides the refrigerator chamber into a heat exchange chamber and a refrigerating chamber, an air inlet, a cold air outlet and a hot air outlet are formed in the shell, the air inlet is communicated with the power chamber, and the cold air outlet is communicated with the refrigerating chamber. The hot air outlet is communicated with the heat exchange chamber; the fan is arranged in the power chamber; the semiconductor refrigerator is arranged in the refrigerator chamber and comprises a cold surface and a hot surface, radiators are arranged on the cold surface and the hot surface, the radiators on the cold surface and the cold surface are located in the refrigerating chamber, and the radiators on the hot surface and the hot surface are located in the heat exchange chamber.

The utility model provides a waste gas purification device which comprises a purification box body, a gas inlet chamber, an equipment chamber and a gas exhaust chamber are sequentially arranged in the purification box body, a gas inlet pipe is arranged on one side of the gas inlet chamber, and the gas inlet chamber is connected with an external waste gas pipeline through the gas inlet pipe; the two equipment chambers are separated through a partition plate, gas guide holes are formed in the upper ends of the equipment chambers, the equipment chambers are communicated with the gas inlet chamber through the gas guide holes, filter elements are detachably installed at the lower ends of the gas guide holes so as to filter guided waste gas, and adjusting assemblies for sealing the corresponding gas guide holes are arranged on the purification box body. According to the device, the air inlet chamber is switched to be connected with different equipment chambers for air supply, and the idle equipment chambers can be closed, so that the filter element is convenient to disassemble, assemble and maintain by personnel. The filter element is rotationally clamped in the clamping groove through the clamping plate, and the clamping plate can be separated from the clamping groove when the filter element is rotated by a person, so that the filter element is quickly replaced.

The invention belongs to a modular installation method, and particularly relates to an equipment room support modular installation method of a micro-grid measurement technology. The method comprises the following steps of: 1, establishing embedded part micro-grid measurement data according to an embedded part drawing; 2, carrying out three-dimensional modeling on the equipment bracket; thirdly, matching the equipment support and the embedded part in goodness of fit; 4, comparing a projection theoretical value and an actual value of welding of the equipment bracket and the pre-embedded plate, and marking an actual size; 5, disassembling and numbering the model; step 6, blanking the component; step 7, assembling workshop modules; and 8, on-site installation is carried out. The method has the remarkable effects that the dependence on skills of workers is greatly reduced, personnel allocation can be further optimized, the working efficiency is effectively improved, and the cost is saved; the safety risk is also reduced while the labor investment is reduced; and the welding quality and efficiency are greatly improved.

The utility model relates to the technical field of microfiber leather preparation, in particular to microfiber leather folding-resistant non-deformation material preparation equipment which comprises an equipment base, two sets of equipment supports are fixedly connected to the upper side of the equipment base, microfiber leather base cloth is arranged on the inner sides of the equipment supports, and a preparation module is arranged between the two sets of equipment supports. The preparation module comprises a spraying box body, a spraying box, a spraying pipeline, a material preparation box, a dust collection box, a dust collection pipeline, a dust collector and a waste gas treatment box, a preparation chamber and an equipment chamber are arranged in the material preparation box, the side wall of the preparation chamber is hollow, a stirring module is arranged in the preparation chamber, and the stirring module comprises a stirring shaft, a stirring rod and a stirring motor; the stirring rod stirs materials, the fluidity and uniformity of the materials are kept, then the spraying uniformity can be improved, in the spraying process, the dust collector sucks waste gas and waste materials, the waste materials are prevented from being adsorbed to the surface of the microfiber leather base cloth, and the spraying quality is further improved.

The utility model relates to the technical field of transformers, in particular to a wind power generation box-type transformer convenient to debug, which comprises a box body, a cabinet door and a locking assembly, the box body is provided with a plurality of equipment chambers, the upper and lower ends of the opening of each equipment chamber are provided with L-shaped sliding chutes, the opening of each equipment chamber is provided with the cabinet door, and the locking assembly is arranged on the cabinet door. Sliding shafts are arranged at the upper end and the lower end of the cabinet door, the cabinet door is slidably connected with the sliding grooves of the box body through the sliding shafts, and the outer side of the cabinet door is connected with the edge of the side wall of the equipment chamber through a locking assembly. One side of the cabinet door can be contained in the box body, the situation that moving of workers is affected when the cabinet door rotates back and forth outside the box body is avoided, debugging of the box-type transformer by the workers is facilitated, meanwhile, the opening mode of the cabinet door is fast, time and labor are saved, and construction efficiency can be improved.

The tin-lead mixed perovskite liquid supply system and the use method thereof, which comprises a liquid preparation device, a storage device, a reduction device, a liquid supply device, a liquid supply device and a coating device, the storage device comprises a bubbling device and a metal mesh from bottom to top, the reduction device chamber is longitudinally provided with metal partition plates spaced apart from top to bottom, the liquid supply device comprises a first liquid supply device and a second liquid supply device, the second liquid supply device is a front end component of the liquid supply device, the left side of the liquid supply device is connected with the reduction device, and the right side of the liquid supply device is connected with the coating device. 4+ The method can maximize the Sn 2+ in the precursor liquid by prolonging the liquid supply path of the precursor liquid, so as to avoid the oxidation of Sn 2+ in the use process, effectively inhibit the oxidation of Sn 2+ in the perovskite precursor liquid supply process and the coating process, improve the stability of the tin-lead mixed perovskite precursor liquid and the crystallization stability in the coating process, and further improve the photoelectric conversion efficiency of the full calcium laminated perovskite battery.

The application relates to the technical field of current sensors, and provides a current sensor for pipeline detection, which comprises a sensor main body and further comprises: a device chamber installed in the middle of the sensor main body; a temperature insulation assembly installed in the inside of the device chamber and used for adjusting the temperature of the device chamber; a hollow square column installed on the lower side of the inside of the sensor main body; an embedded cylinder installed on the upper side of the inside of the hollow square column, a plurality of airflow touch plates are annularly installed on the inner wall of the embedded cylinder at equal intervals, an electric heating film is installed on one side end surface of each airflow touch plate, a semiconductor refrigeration sheet is installed on the other side end surface of each airflow touch plate, and an air outlet is installed on the top of the embedded cylinder; and a micro air pump is installed on the lower side of the inside of the hollow square column. When the current sensor is used, the internal temperature can be adjusted according to the external environment demand, the influence of extremely high temperature or low temperature on the precision of the sensor is solved, and the underground pipeline distribution can be more accurately detected.

The present application relates to the technical field of heating, ventilation and air-conditioning apparatuses. Disclosed are an outdoor unit of a heating, ventilation and air-conditioning apparatus, and a heating, ventilation and air-conditioning apparatus. The outdoor unit comprises a housing, and a heat exchanger assembly, an air guide ring, a support, and a fan assembly that are located in the housing, wherein an air outlet is provided at the top of the housing; the air guide ring is located between the heat exchanger assembly and the air outlet, and has an air intake side facing the heat exchanger assembly and an air output side facing the air outlet; the support is mounted between the air outlet and the air output side; and the fan assembly is located in the air guide ring and is mounted on the support. In the present application, the support is arranged between the air outlet and the air output side; since the air outlet is in direct communication with the outside, the support causes little disturbance to the airflow at the air outlet and does not affect air output; in addition, the possibility of the support causing disturbance to the airflow at the air intake side of the air guide ring can also be reduced or even eliminated, thereby improving the stability and flow velocity of the airflow at the air intake side of the air guide ring.

The laboratory non-contact type loaded coal rock neutron monitoring test device comprises a box body with an opening in the front end and a partition plate which is arranged at the rear end of the inner wall of the box body in a matched mode and divides the box body into a device cavity and an operation cavity, and an experiment table base is arranged at the bottom of the inner wall of the operation cavity. Press machines are arranged on the left side and the right side of the upper end of the experiment table base in a matched mode, a neutron detector is arranged at the position, behind the press machines, of the upper end of the experiment table base, a pre-amplifier is installed on one side in the device cavity, and a high-voltage power module, a time synchronizer and a neutron monitoring controller are arranged on the other side in the device cavity. A data analysis panel is arranged at the open end of the device cavity in a matched mode and controls time synchronization through a time synchronizer, and a plurality of heat dissipation holes distributed in an array mode are backwards formed in the rear end of the inner wall of the device cavity. The neutron radiation test can be carried out, and meanwhile, the neutron discrete coefficient of the coal-rock mass is provided as a neutron radiation anomaly index, so that the coal mine dynamic disaster is predicted.