275results about How to "Temperature effect" patented technology

The invention provides a base plate structure for an outdoor unit of an air conditioner, the outdoor unit of the air conditioner, the air conditioner and a defrosting control method for the air conditioner. The base plate structure for the outdoor unit of the air conditioner comprises an outdoor unit base plate, a base plate electric heating element and a drainage part, wherein a compressor fixing support is arranged on the outdoor unit base plate, and a condenser is installed on the outdoor unit base plate; the base plate electric heating element is arranged at the bottom of the condenser and located above the outdoor unit base plate; and the drainage part is arranged on the outdoor unit base plate and comprises at least one main drainage port, and the main drainage port is located below the base plate electric heating element. By adopting the base plate structure, when the air conditioner is heated for defrosting at a lower outdoor temperature, frost on the condenser and the outdoor unit base plate can be quickly and thoroughly thawed, and the thawed water quickly and smoothly flows out of the main drainage port, so the frost is thawed cleanly and thoroughly, the temperature of an indoor air port is improved, a good heating effect is guaranteed, and the market competitiveness of the product is improved.

The utility model provides a steam turbo-generator having an air-cooled rotor and a vapor-cooled stator, which is characterized in that axial ventilation air cooling method is adopted to cool the rotor (20). All of air coolant enters a protective ring (60) arranged on one end of the rotor after being pressurized through fans (50) arranged on both ends of the rotor. The air coolant in the protective ring (60) flows in two ways. The air coolant in the first way cools winding coils on both ends, and enters a gap through radial ventilation holes (601) arranged on the protective ring (60). The air coolant in the second way directly enters a tube conductor (701) of the rotor, and flows axially. The axial-flow cooling blast passes through the middle of the rotor (20), then enters the gap through a radial wind path (80), and flows to one end and gathers with the air coolant which enters the gap through the protective ring (60), and then enters a cooler (110) through a duct (120) on the end. The cold air cooled through the cooler (110) enters the end of the steam turbo-generator through the duct (120). Efficiency of the invention is high; the structure is simple; utility model needs few auxiliary equipments, is conveineint to mount, runs safey and reliably, and can be free from maintenance generally.

The present invention relates to a high-speed wax coating apparatus, which comprises a base paper pre-heating assembly for carrying out a pre-heating treatment on base paper before wax coating, a wax melting chamber assembly arranged on the rear portion of the base paper pre-heating assembly and holding a wax liquid for wax coating of the pre-heated base paper conducted to the chamber, a wax feeding assembly having a disk type structure, a wax rubbing roller arranged on the rear portion of the wax melting chamber assembly and used for avoiding wax liquid temperature reduction when contacting the paper surface wax liquid, and a cooling roller arranged on the rear portion of the wax rubbing roller, wherein the lower half portion of the wax feeding assembly is soaked into the wax melting chamber assembly and coats the wax liquid onto the base paper in a rotating manner, and the wax liquid coated on the base paper is cooled in a rapid cooling manner through the cooling roller. Compared with the apparatus in the prior art, the apparatus of the present invention can ensure the stability and the uniformity of the wide-width high-speed wax coating.

The invention relates to an amorphous alloy round pipe extrusion forming device and technology. The device comprises a hydraulic type extrusion structure, an extrusion die and an extrusion tool frame, the extrusion die comprises an extrusion male die, an extrusion cylinder, an extrusion female die and a setting sleeve, the extrusion cylinder, the extrusion female die and the setting sleeve are sequentially and fixedly connected together, a cavity formed in the extrusion mould comprises a blank chamber, a flow dividing chamber, a welding-on chamber and a forming chamber, the extrusion female die is designed to be of a splicing block structure, a splicing line of each splicing block is selectively arranged at the position of the welding-on chamber, the extrusion female die is a cylindrical die body, a mold core is formed on the axis of the die body, the extrusion female die is sleeved with an extrusion female die clamping sleeve, the outer surface of the extrusion female die and the inner surface of the extrusion female die clamping sleeve are combined in a gradually-advancing type conical-face mode, and the extrusion female die clamping sleeve is fixed to the extrusion tool frame. The extrusion forming device is convenient to dismount and mount, and reasonable in structure, the size precision of a formed round pipe is high, the surface quality is good, extrusion wastes are easy to clear, and the production efficiency is high.

The invention discloses a mold insert and a process method for high-pressure hot-chamber metal mold casting, which basically eliminates the sprue casting body and greatly improves the flow conditions of molten metal. The mold insert includes: (1) a heated sprue body insert (130, 258) positioned within a stationary block (112) in the mold assembly and including a sprue channel (136, 260); (2) a sprue channel (136, 260); Cooled sprue head inserts (132, 266) are installed in the moving module (114) of the mold assembly. The sprue channel body inserts and head inserts are mounted coaxially so that their inner ends fit well with each other in the area of ​​the parting surface (155) of the mold and at least form a curved transition channel ( 138,262,264) which connects the sprue channel (136,260) with at least one sprue channel (140,254,256) formed along the parting surface. The temperature of the sprue body inserts and head inserts is controlled, so that the solidification point of the molten metal can occur just in the transition channel, and after each injection, the sprue channel can be ensured. Residual molten metal is returned to the nozzle of the casting machine, so that the sprue body is never formed again.

The invention belongs to the technical field of wastewater treatment in a thermal power plant and particularly relates to a concentration crystallization zero-emission system for wastewater in the thermal power plant. The system includes a denitrating apparatus, a main dust remover and a desulfurizing column. An air preheater is arranged on a flue between the denitrating apparatus and the main dust remover. A draft fan is arranged on a flue between the main dust remover and the desulfurizing column. The system also includes a desulfurizing wastewater spray-concentrating apparatus, which performs spray-concentration to the desulfurizing wastewater by means of heat in low-temperature flue gas in the flue between the main dust remover and the desulfurizing column, and a concentrated wastewater spray-crystallization apparatus, which performs spray-crystallization to the concentrated wastewater by means of heat in high-temperature flue gas in the flue between the denitrating apparatus and the air preheater. The system is free of consumption of extra heat during the concentration crystallization process, so that operation energy consumption is greatly reduced, and zero-emission of wastewater in thermal power plant is achieved.

The invention relates to a high-pressure cell incubator. The high-pressure cell incubator comprises a box body, and a water jacket for providing a working temperature for the box body, wherein the water jacket covers on the inner surface of the box body. The invention also provides a temperature control method and a pressure control method of the high-pressure cell incubator. By adoption of the technical scheme of the high-pressure cell incubator, a growing environment for cells under high pressure can be provided.

The invention relates to a device and a method for filling a catalyst on line by pneumatic transmission. The filling device comprises a catalyst filling tank. The filling tank comprises a cone flow guide body, a nitrogen distributor, an ejector and a heating coil. The cone flow guide body is positioned in a lower sealing end of an equipment cylinder. The heating coil is positioned on the middle lower part of the equipment cylinder. The ejector is positioned at the bottom of the cone flow guide body and comprises a gas transmission pipe, an ash bin, a contraction segment, a choke tube, an expansion segment and a joint pipe sequentially from top to bottom. The on-line filling of the catalyst can be realized by filling high pressure hydrogen into the ejector, pumping catalyst particles into the ejector and making the catalyst particles enter a reactor under the drive of hydrogen flow. The device has a simple structure and does not need transferring oil. The transferring process is stable. A pipeline cannot be blocked. The device is suitable for continuously or discontinuously filling the fresh catalyst into the fluidized bed reactor on line.

The invention provides a making method of a luminous fire label, and the making method is as follows: performing ball milling on raw materials potash feldspar, soda feldspar, chinastone, pyrophyllite, diopside, kaolin, alumina ore, Xinyang soil, black clay and sodium potassium feldspar to obtain slurry, using a drying tower to dry until the moisture is less than 6.5% to obtain powder, using a press to press the powder into a blank mold; burning the blank mold at the high temperature of 1200-1250 DEG C to obtain a ceramic tile with the moisture absorption rate of 1%+ / -0.5; printing patterns with different labels on the ceramic tile surface by a screen printing plate screen printing way, and then entering into a roller kiln at 1200 DEG C for firing. The luminous fire label prepared by the method can resist the high temperature of 1200 DEG C without damage to the label, and the luminous fire label can really play the effects of protecting people's life and guiding correct escape routes.

Provided is a thin-strip continuous casting flow distribution scum removing method. In dual-roller thin-strip continuous casting, a flow distributing device is arranged in a liquid steel molten pool composed of two crystallization rollers rotating reversely and side sealing plates, the flow distributing device is of a rectangular box structure, a plurality of discharge holes are symmetrically formed along the periphery of the flow distributing device, and the discharge holes are inclined towards the two sides with the central lines of the four edges of the flow distributing device as benchmarks. Electromagnetic induction devices are arranged on the two sides of the side sealing plates respectively to enable liquid steel in the molten pool to have the tendency of moving towards the center under the electromagnetic effects, and thus slots are formed between the side sealing plates and the liquid steel molten pool close to the side sealing plates. Through the inclined design of the discharge holes of the flow distributing device, the liquid steel can be pushed to move towards the side sealing plates from the center of the molten pool, scum can enter the slots when the scum moves to the liquid steel slots formed near the side sealing plates due to the electromagnetic effects, a part of the scum entering the slots drops from the bottoms of the side sealing plates along with the rotation of the crystallization rollers, and the other part of the scum is attached to the edges of a cast strip due to fluctuation and is separated from the cast strip along with the subsequent edge cutting of the cast strip.

The invention discloses an air conditioner system and a control method thereof. The air conditioner system comprises a compressor, a main four-way valve, an auxiliary four-way valve, an indoor heat exchanger, a first throttling device, a second throttling device, a first on-off valve, a second on-off valve and a third on-off valve. According to the air conditioner system, the outdoor heat exchanger can be dismounted into two portions or multiple portions, and through combination of all parts and a pipeline and control over all valves, intermittent heating defrosting and low-load running control can be achieved.

The invention discloses an air path system of a refrigerator. The air path system comprises an evaporator cavity. An evaporator and a fan assembly are arranged in the evaporator cavity from bottom to top. The upper portion of the evaporator cavity is connected with a refrigeration air inlet flue and a freezing air inlet flue. The lower portion of the evaporator cavity is connected with a refrigeration return air flue and a freezing return air flue. The ends, close to the evaporator cavity, of the refrigeration air inlet flue and the freezing air inlet flue are inlet ends. The inlet end of the refrigeration air inlet flue and the inlet end of the freezing air inlet flue intersect, and an air inlet door is arranged at the intersection of the inlet ends of the refrigeration air inlet flue and the freezing air inlet flue. The air inlet door can be rotatably switched to close the refrigeration air inlet flue or close the freezing air inlet flue. The end, close to the evaporator cavity, of the freezing return air flue is an outlet end. A return air door is arranged at the outlet end of the freezing return air flue. The air path system of the refrigerator has the advantages that the air inlet door can be rotated to conduct switching so as to close the refrigeration air inlet flue or close the freezing air inlet flue, so that the refrigerating efficiency is improved, and cost is greatly reduced.

The invention provides a power device dynamic characteristic testing circuit with the thermoelectric decoupling function. The power device dynamic characteristic testing circuit comprises a first power switching tube S1, a second power switching tube S2, a first driving circuit, a second driving circuit, a third power switching tube S3, a direct-current power source Vd, a direct-current energy storage capacitor Cd and a follow-current electric reactor Lload. The invention further provides a testing method of the testing circuit. The power switching tubes to be tested do not participate in establishment of a load current, so that losses generated in the establishment process of the load current do not affect the temperature of the power switching tubes to be tested, and it is ensured that the environment temperature is stable during a dynamic test for the power switching tubes to be tested.

Disclosed in the invention is a power cabinet comprising a cabinet body formed by N independent cavities and an external cooling device arranged at the rear side of the cabinet body. Each cavity is provided with an inlet window and an air outlet; the air outlet is opposite to the external cooling device; and a temperature probe is also arranged inside each cavity. The external cooling device consists of a base plate, a support, an air box, a control box, and N exhausting units installed on the support; each exhausting unit corresponds to one air outlet; and the exhausting units include suction hoods, telescopic tubes I, L-shaped elbow pipes, telescopic tubes II, sliding blocks, and telescopic drivers. Compared with the prior art, the power cabinet has the following beneficial effects: no fan is arranged in the cabinet body and hot air inside the cabinet body is exhausted by the external cooling device; the draught fan as an air flow power unit is arranged isndie the external cooling device and a few part of vibration caused by the fan can be transmitted to the cabinet body, so that the influence caused by fan vibration is reduced and thus electrical equipment elements work normally. In addition, the invention also designs a cooling control method of the power cabinet.

The invention relates to a process and a system thereof for forming upgraded lignite, solving the problems of inflammability, explosiveness, environment pollution, low forming rate, poor system stability, low safety performance and the like existing in the forming process of the upgraded lignite. The invention can save the construction cost, reduces the safety risk, decreases the coal dust pollution of a finished product conveying system and has the characteristics of safety, energy saving, environmental protection, high efficiency and stability. The method comprises the following steps of: (1) feeding the formed lignite which is subjected to drying and dehydration and upgrading treatment and meets the requirements for water content, the temperature and the granularity; (2) pressing the lignite into the molded lignite by using a molding device, screening the molded lignite and feeding the qualified molded lignite into next step and turning the unqualified molded lignite into the step (1); (3) air cooling the qualified molded lignite by adopting air with water fog, feeding the cooled molded lignite into a finished bin and feeding lignite powder / granules generated by cooling back tothe step (1); and (4) collecting waste gas generated by cooling, removing dust and emptying or recycling to other proper work sections and feeding the lignite power collected by a dust removing device into the step (1).

The invention provides an experimental apparatus for researching microstructure and magnetic field relation of magnetic fluid. The experimental apparatus consists of a video optical microscope 1, a double-loop liquid-cooling constant-temperature even magnetic field generating device 2, a bottom light source bracket 3, a computer 4, a programmable power supply 5, a light source 6, a water cooling liquid circulating radiating device 7, a transformer oil circulating radiating device 8 and a gauss meter 9, wherein the double-loop liquid-cooling constant-temperature even magnetic field generating device can provide large magnetic field stably for a long time without affecting ambient environment thereof; the observation is realized by moving the video optical microscope 1 right above the bottom light source bracket 3 and then adjust the focal length; the magnetic field parallel to or vertical to a magnetic fluid sample can be generated by simultaneously using the bottom light source bracket 3 and the double-loop liquid-cooling constant-temperature even magnetic field generating device 2, so as to research the microstructure of the magnetic fluid in multiple magnetic field directions.

The invention discloses a centrifugal micro-fluidic detector with a flip type temperature control chamber. The detector comprises a detector cavity, the temperature control chamber, a rotary motor assembly and a detector assembly, wherein the detector cavity is internally provided with the temperature control chamber; the temperature control chamber is a closed chamber formed by enabling an upperend cover, a cylinder body and a lower end cover to be matched with one another in sequence from top to bottom; the upper end cover is completely or partially connected into an upper cover, and the upper cover is arranged at an opening of the top of the detector cavity and is matched with the detector cavity in a flip mode; when the upper cover is closed, the upper end cover is matched with the cylinder body in a sealed mode; a temperature controller is attached to the outer surface of each of the upper end cover and the lower end cover; and a tray is arranged in the temperature control chamber. According to the centrifugal micro-fluidic detector, the volume of the temperature control space is decreased by adopting the flat chamber, in addition, an external air duct structure of the temperature control flat chamber is optimized, air inlets, air outlets, a guiding air duct and an air deflector at specific positions are designed, the sealing characteristics of all joints and flip movableparts are improved, and therefore the temperature of the internal chamber can be quickly and accurately controlled.

The invention discloses a humidifying control method and device for a domestic appliance and the domestic appliance. The method includes the steps that a fresh air device and a humidifying device in the domestic appliance are controlled to be in a work state; the outdoor current temperature is obtained; and the heating power of a heating assembly in the humidifying device is adjusted according tothe current temperature, and the temperature of air entering a room through the fresh air device is controlled. By means of the method, when the fresh air device and the humidifying device in the domestic appliance are in the work state, the heating assembly in the humidifying device can be used for adjusting the temperature of the air entering the room through the fresh air device based on the outdoor temperature, and therefore the influences of the outdoor air temperature on the indoor air temperature are reduced.

The invention provides a lithium flow battery system driven by virtue of a motor. The lithium flow battery system comprises a control device, a gas supply part and a battery module part, wherein gas supplied by the gas supply part enters a liquid storage device under the actions of a motor and a piston of the battery module part, independent, synchronous or successive liquid exchange between a positive pole reaction chamber and a negative pole reaction chamber of a battery reactor is completed, and flow rate of the gas supplied by the gas supply part and a rotating speed of the motor of the battery module part are controlled by virtue of the control device, wherein the piston is separated from suspension liquid in the liquid storage device by virtue of the gas. By virtue of the lithium flow battery system provided by the invention, leakage of the suspension liquid of an electrode or contact between the suspension liquid as well as water vapor and oxygen in the air can be effectively prevented, so that safety of the battery system is improved, and mechanical friction intensification and shortening of life of a mechanical structure which are caused by direct contact between a mechanical part and the suspension liquid of the electrode are also avoided. Besides, the invention also provides a working method of the lithium flow battery system driven by virtue of the motor.

The invention relates to an automatic fertilizing machine which is characterized in that a liquid storage pot (2), a liquid outlet device (3), a liquid outlet valve (4), a solenoid valve (5), a check valve (6), a pressure switch (7), a turbine flowmeter (8), a liquid outlet pipe (9), a booster pump (10), a liquid adding gun (11) and a display (12) are arranged on a liquid storage tank (1), wherein the liquid storage pot (2) is connected with the liquid outlet valve (4) through the liquid outlet device (3); the solenoid valve (5) is connected with the liquid outlet valve (4) and the booster pump (10); the check valve (6) is connected with the booster pump (10) and the pressure switch (7); the turbine flowmeter (8) is connected with the pressure switch (7) and the liquid outlet pipe (9); and the liquid outlet pipe (9) is connected with the liquid adding gun (11). The automatic fertilizing machine has the advantages that the machine is pollution-free and convenient to use, large-scale production of farmers is improved, and the storage inconvenience of a user is reduced. Moreover, wide prospects are developed for development of China agriculture, an agricultural and transformed large-scale precedent is developed, the production cost can be saved, exterior and interior packing can be totally saved, and a procedure of opening the package is reduced during use.

The invention discloses a battery temperature control device. A cooling device and a heating device are attached to two opposite sides of a battery module respectively, a temperature detection devicedetects the temperature of the battery module, and when the collected temperature meets the cooling condition, a controller controls a channel control switch to be switched to a first communicating state and controls a liquid in an external liquid storage device to be cooled and flow into the cooling device through the channel control switch so as to reduce the temperature of the battery module. When the collected temperature meets the heating condition, the controller controls the channel control switch to be switched to a second communicating state and controls the liquid in the external liquid storage device to be heated and flow into the heating device through the channel control switch so as to increase the temperature of the battery module. By means of the battery control device, thetemperature of the battery module can be decreased and can be increased, the working performance of the battery module is ensured and the influence on the service life is avoided.

The invention discloses an external rotor chassis dynamometer for the direct drive of a permanent magnet synchronous motor, which relates to the technical field of detection equipment for automobilesand engineering vehicles. The technical problems of large floor space, many mechanical transmission links, low efficiency and high failure rate of a dynamometer in the prior art are solved. The external rotor chassis dynamometer for the direct drive of the permanent magnet synchronous motor comprises a base, a main shaft, an encoder, a torque measuring device and a rotating hub. The main shaft isfixedly mounted on the base through a bearing unit. The rotating hub is mounted on the main shaft through a first bearing. The rotating hub is provided with resistance by the permanent magnet synchronous motor. The permanent magnet synchronous motor comprises a stator assembly and a rotor assembly. The stator assembly is fixedly mounted on the main shaft. The rotor assembly is fixedly mounted on the rotating hub. According to the invention, the rotor assembly is integrated with the rotating hub, so as to directly drive the rotating hub to rotate; the stator assembly is fixedly arranged insidethe motor; the external rotor chassis dynamometer has the advantages of compact structure, reduced floor space, reduced mechanical transmission links, improved efficiency and reduced failure rate.

A fully enclosed barbecue grill comprises a housing and a charcoal stove. The housing covers the charcoal stove. A barbecue chamber is arranged inside the housing, a combustion chamber is arranged inside the charcoal stove, and the barbecue chamber communicates with the combustion chamber. The fully enclosed barbecue grill further comprises a flanged skewer barbecue grill and a heat radiating part. The flanged skewer barbecue grill comprises a flange plate and a roasting needle. A positioning through hole and a smoke outlet communicating with the barbecue chamber are formed in the housing, theroasting needle protrudes into the barbecue chamber through the positioning through hole, and the flange plate is supported on the housing and seals the positioning through hole. The heat radiating part is detachably arranged on the charcoal stove and placed in the barbecue chamber, and the barbecue chamber and the combustion chamber communicate with each other through the heat radiating part. The traditional closed barbecue and open barbecue are integrated to form a combined barbecue mode. The combined barbecue mode can provide uniform heating of food, has a high heat utilization rate, and can achieve fast heating, high grilling efficiency, less manual operation, convenient operation, high quality of barbecued food, high consistency of food, zero fume pollution and a wide application range.

The invention provides an air conditioner and a dehumidification control method thereof. The dehumidification control method of the air conditioner comprises the steps that in a dehumidification mode,the environment dew point temperature is calculated according to the environment temperature and the environment humidity, and a first target threshold value temperature range is determined; the first opening degree of an electronic expansion valve is determined according to the coil pipe detection temperature of an indoor heat exchanger of the air conditioner; the second opening degree of the electronic expansion valve is determined according to the exhaust outlet temperature of a compressor of the air conditioner; and the opening degree of the electronic expansion valve is adjusted to be the small one in the first opening degree and the second opening degree. The environment dew point temperature changes along with changes of the environment temperature and the environment humidity, therefore, it is guaranteed that the coil pipe temperature of the indoor heat exchanger is kept within the target threshold value temperature range, the condition that the coil pipe temperature of the indoor heat exchanger is too high is avoided, and then the condition that water steam in indoor air can not be condensed into water is avoided; and meanwhile, influences of the exhaust outlet temperature of the compressor on the opening degree of the electronic expansion valve are avoided, therefore, the dehumidification effect is guaranteed, and the dehumidification speed is increased.

The invention provides a vehicle engine rapid warming-up system. An engine communicates with a main radiator through an engine water return pipe and an engine water outlet pipe, a thermostat valve anda water pump are connected with the position between the engine water return pipe and the engine, the engine communicates with a warm wind radiator through a warm wind water inlet pipe and a warm wind water return pipe, the warm wind water return pipe communicates with the thermostat valve, and a heat exchanger communicates with the warm wind water inlet pipe through a heat exchanger water inletpipe and a heat exchanger water outlet pipe. According to the vehicle engine rapid warming-up system, small-circulation cooling liquid is heated by utilizing exhaust gas generated by burning of the engine, rapid warming-up of the engine can be achieved, oil consumption and pollutant discharge are reduced, abrasion of the engine at the starting stage is reduced, the engine is protected, and the service life of the engine is prolonged.

The invention discloses a modified TPU film fabric compound and a preparation method thereof. The film fabric compound comprises a modified TPU surface film layer, a PU surface adhering layer, a polyethylene fiber modified nylon base fabric, a PU bottom adhering layer and a modified TPU bottom film layer which are sequentially arranged, wherein a TPU modifying agent and polyester type TPU resin are mixed and dried based on ratio and then are extruded and cast to form a film; finally, the obtained modified TPU film layer is preheated with the nylon base fabric which is subjected to dehumidifying, pasting and drying; the modified TPU film layer and the nylon base fabric are processed by opposite pressing, laminating and winding through two mirror roller surfaces. The traditional preparationtechnology of the film fabric compound is modified, and thus a novel production method and technology is provided to a graphene oxide modified TPU film fabric compound; moreover, the prepared film fabric compound is high in tensile strength, tearing intensity and stripping fastness, and also has the bacteria resistance and bacteriostasis performances.

The invention provides a spray head used for MOCVD equipment. The spray head is used for providing a substrate under the spray head with reaction gas. The spray head comprises a main body layer, wherein a side close to the substrate is a gas outlet face, and gas flows of the reaction gas are formed between the gas outlet face and the substrate; and a flow limiting ring, wherein the flow limiting ring is connected to the gas outlet face, and is arranged around the gas outlet face, so as to control the direction of the gas flows. A thermal insulation layer is arranged between the flow limiting ring and the gas outlet face. According to the spray head used for the MOCVD equipment, the thermal insulation layer is arranged between the flow limiting ring and the gas outlet face, and influences of the flow limiting ring on the temperature of the gas outlet face are avoided, so that uniformity of the deposition of the MOCVD equipment is increased.

The invention discloses a blower shielding device for a refrigerator. The refrigerator comprises a box body, a compressor, an evaporator and a blower. A target refrigeration room is defined in the boxbody. An air flue introduced in the target refrigeration room is arranged at the rear part of the target refrigeration room. The compressor is arranged at the bottom of the box body. The evaporator is arranged in an evaporation cavity of the box body, and can provide cooling capacity for the target refrigeration room. The blower is arranged in a blower cavity above the evaporator, and is used forintroducing cold air from the evaporator in the air flue. The blower comprises blades and a driving shaft driving the blades to rotate. The blower shielding device comprises a blower cover covering the peripheries of the blades. A thread section is arranged on the driving shaft. The blower cover is matched with the thread section. When the blower is turned off, the evaporator cavity is disconnected with the air flue by the blower cover. When the blower is turned on, under the driving of the thread section, the blower cover moves in the axial direction of the driving shaft to allow the evaporator cavity to communicate with the air flue by means of the blower cavity.

The invention belongs to a water curtain box for ammonia gas absorption of a livestock breeding house. The water curtain box comprises a box body and a water curtain box base arranged at the bottom of the box body, the box body is provided with front aerating plates and lateral aerating plates, a water inlet and a water outlet are arranged below the lateral aerating plates, the bottom of the box body is provided with a water sink, an annular water channel is arranged on the periphery of the water sink, wet curtain plates are arranged in the annular water channel, an annular water pipe is arranged on the upper sides of the wet curtain plates, the bottom of the annular water pipe is provided with water holes, and an axial fan, a floater switch and an air cooler water pump are arranged at the inner bottom of the box body. The water curtain box base comprises a bottom plate, vertical plates and surface plates. The wet curtain plates are arranged on the periphery of the water curtain box, water in the water sink cyclically flows in the wet curtain plates via the axial fan and the air cooler water pump, ammonia gas is repeatedly absorbed, concentration of the ammonia gas in the breeding house is effectively reduced, growth speed and feed conservation ratio of livestock are increased, disease rate of the livestock is decreased, cost of enterprises is saved, and environmental pollution caused by discharge of the ammonia gas is avoided.

The invention discloses a temperature control type transformer and a control method thereof. The temperature control type transformer comprises a water tank and a transformer body, cooling fins used for cooling are arranged on the two sides of the transformer body, and mounting assemblies used for mounting the water tank are arranged on the two sides of the lower end face of the water tank; two mounting vertical rods are fixedly connected to the two side faces of the water tank, the transformer body is mounted between the upper ends of the mounting vertical rods on the two sides of the water tank, an oil pump is fixedly connected to the lower end of one side of the transformer body, and the input end of the oil pump communicates with the interior of the transformer body; and according to the invention, the temperature sensor is arranged, the temperature of oil in the transformer body can be monitored, and when the transformer body works in a full-load mode to generate high temperature, the water tank can be rapidly cooled through spraying of the cooling fins and circulating water cooling and air cooling of the oil in the transformer body; the transformer body is prevented from working in a high-temperature area for a long time.