37results about How to "The cooling rate is small" patented technology

A controlled rolling and controlled cooling system for bars comprises a first cooling section at the position of an outlet of an intermediate mill group, a machine cooling section of a finishing mill group, a second cooling section between the finishing mill group and a third flying shear, a third cooling section between the third flying shear and a cooling bed, a sensor module and a central control unit. The first cooling section, the second cooling section and the third cooling section respectively comprise one or a plurality of cooling lines arranged on a horizontal moving trolley and a bypass roll table, one cooling line or the bypass roll table can be selectively connected to a production line by horizontally moving the horizontal moving trolley, and every production line comprises one or a plurality of series connection coolers. Every cooler is connected to a water supply main pipe through one water supply branched pipe, control valves are arranged in the water supply branched pipes, and the coolers connected to the production lines are selected and used by opening and closing of the control valves. According to the controlled rolling and controlled cooling system, a plurality of cooling sections can be selected flexibly, the coolers in every cooling section can also be selectively used simultaneously, and accordingly the system not only is good in applicability, but also improves bar finished product performances.

The invention relates to the technical field of storage battery production equipment, in particular to an efficient lead-acid storage battery cast-welding production process which is characterized by comprising the following steps: S1, a shunting procedure: a storage battery is automatically conveyed forwards by a feeding conveying system, and a plurality of cast-welding production systems are arranged on the side of the feeding conveying system; and S2, a cast-welding alternating procedure: each cast-welding production system comprises a cast-welding mechanism, a plurality of sets of lead dipping mechanisms and cast-welding molds which are arranged in one-to-one correspondence with the lead dipping mechanisms and can be conveyed and transferred between the cast-welding mechanism and the corresponding lead dipping mechanisms, the cast-welding mechanisms bear storage battery packs conveyed by a shunting mechanism in a shunting mode, the cast-welding molds obtain molten lead liquid from the lead dipping mechanisms to the cast-welding mechanisms to be subjected to cast-welding work with the storage battery packs, and the multiple cast-welding molds alternately change the cast-welding mechanisms to convey the lead liquid needed by cast-welding. Cast-welding flow production of the storage battery is achieved, the cast-welding molds are matched to alternately conduct cast-welding on the cast-welding mechanisms, and the production time is shortened.

The invention provides a control system and method for cold energy utilization in an LNG gasification process. The control system comprises a coolant storage tank, a coolant conveying pump, a seawater heater and an LNG gasifier. LNG is gasified through heat exchange of the LNG gasifier and coolant; the gasified natural gas is conveyed to downstream natural gas users; the coolant after heat exchange is conveyed to cool energy users for cooling; the coolant after being heated is conveyed to the coolant storage tank; and after being discharged from the coolant storage tank, the coolant is conveyed to the seawater heater through the coolant conveying pump, and the coolant enters the LNG gasifier after reaching the specified temperature. The control system for cold energy utilization in the LNG gasification process adopts cascade control, so that the phenomenon that the temperature of the natural gas can not be controlled timely due to flow variation of an LNG inlet is avoided; and the process of heating the coolant by seawater also adopts cascade control, so that the phenomenon that the temperature of a coolant outlet can not be controlled timely due to flow variation of a coolant inlet is avoided.

The invention provides an air conditioner self-cleaning control method and device, an air conditioner and a storage medium. The air conditioner self-cleaning control method comprises the step that when the air conditioner is in a self-cleaning mode, an indoor heat exchanger is controlled to cool and frost stage by stage, wherein the operation of controlling the indoor heat exchanger to cool and frost stage by stage comprises the steps that target tube temperatures corresponding to all the stages are acquired sequentially, and the indoor heat exchanger is controlled to cool based on the targettube temperatures corresponding to all the stages. Through the method, cooling speed of the indoor heat exchanger can be reduced, and noise generated in the frosting process can be lowered.

The invention discloses a rotation type air preheating system capable of achieving online cleaning and an online cleaning method. The rotation type air preheating system comprises a rotation air preheater, a nozzle, a linear moving device and a flow shielding plate. The linear moving device is arranged at the smoke outlet end of a smoke channel of the rotation type air preheating system, the nozzle is arranged on the linear moving device, the nozzle is arranged towards the rotation air preheater, and the nozzle is connected with a hot primary air mother pipe through an air pipe. Hot primary air is guided out of the hot primary air mother pipe and sprayed towards a heat accumulation element of the rotation air preheater through the nozzle, and the flow shielding plate is arranged at the smoke inlet end of the smoke channel, corresponds to the motion area of the nozzle and is used for shielding smoke in the corresponding area from entering the rotation air preheater. By means of the rotation type air preheating system capable of achieving online cleaning and the online cleaning method, a cold end heat accumulation element of the rotation type air preheating system can be cleaned online, and the cleaning effect is better.

The invention provides a temperature-difference regulating system for an agricultural greenhouse, and relates to a temperature regulating device for an agricultural greenhouse. The temperature-difference regulating system for an agricultural greenhouse consists of a solar heat collector, a heat storage cylinder, a hot-oil circulating pipe, a return-oil circulating pipe, a warm-air pipe, a return-air pipe, a heat-storage oil tank and an oil circulating pump, wherein the hot-oil outlet of the solar heat collector is connected to a hot-oil inlet interface of a heat exchanging coil, and the return-oil outlet interface of the heat exchanging coil is connected to a return-oil inlet which is connected to the solar heat collector through the return-oil circulating pipe; the return-oil circulating outlet of the heat-storage oil tank is connected to the rear end of the return-oil circulating pipe, the hot-oil circulating inlet of the heat-storage oil tank is connected to the hot-oil circulating pipe, the heat-storage oil outlet interface of the heat-storage oil tank is connected to the inlet of the oil circulating pump, and the outlet of the oil circulating pump is connected to the front end of the return-oil circulating pipe; the warm-air pipe is mounted at the lower end of the heat storage cylinder, and the return-air pipe is mounted at the upper end of the heat storage cylinder. The temperature-difference regulating system for the agricultural greenhouse stores the heat of solar energy by utilizing the heat-storage oil tank with the heat storage cylinder, so that the time of heat emission of a heat-storage wall body is prolonged, and the temperature-difference regulating capability of the system is enhanced.

The invention discloses a quick repairing method for the perforation of a coke oven wall. The method comprises the following steps: determining a perforated carbonization chamber; pushing out coke inthe perforated carbonization chamber, opening a riser tube cap and an oven lid, cleaning the coke powder in the perforated carbonization chamber, and carrying out heat insulation on the upper part ofthe perforated carbonization chamber; measuring the size of the perforated part; placing zero-expansion bricks by using a brick holding tool, and carrying out dry building; restoring the heating of aperforated vertical flame path; carrying out secondary heat insulation on the perforated carbonization chamber; welding gaps between the zero-expansion bricks and the oven wall and gaps between bricks; and performing heating to restore production. The quick repairing method for the perforation of the coke oven wall has the advantages of effective prolongation of the service life of the coke oven,effective prevention of a repairing personnel from entering the carbonization chamber, avoiding of secondary damages caused by the temperature drop of the oven wall, effective improvement of the hot repairing efficiency of the coke oven, and great reduction of the labor intensity of the hot repairing personnel.

The invention relates to a power generation assisting device, in particular to a turbine condenser vacuum-pumping system with coolers and a control method. Waste steam of a turbine is stored in a hotwell after being condensed in a condenser; non-condensable gas is introduced to a gas inlet of a steam-jet ejector; and exhaust air at the penultimate stage of the turbine is introduced to a jet portof the steam-jet ejector. The system comprises the air cooler, the cooling water cooler, the freezing water cooler and a vacuum pump which are sequentially connected to an air outlet of the steam-jetejector, wherein an air outlet of the air cooler is connected with an air inlet of the cooling water cooler through a first valve; an air outlet of the cooling water cooler is connected with an air inlet of the freezing water cooler through a second valve; the air outlet of the air cooler is connected with the vacuum pump through a first bypass with a third valve; and the air outlet of the coolingwater cooler is connected with the vacuum pump through a second bypass with a fourth valve.

Relating to the field of road machineries, the invention provides a thermal insulating device for a pavement asphalt mixture stirring cylinder. An asphalt mixture can be stirred at a temperature of 160-180DEG C, below which the mixture quality can be affected. However, present stirring cylinders have no heating and thermal insulating device per se, and a hot material entering the cylinder can be cooled by a cold stirring cylinder. In order to avoid the disadvantage, the invention provides a technical scheme of sticking insulating pipes on the external wall of a stirring cylinder so as to realize preheating of a cold stirring cylinder or insulation during a continuous production process. The insulating pipes have a three-layer structure. The inner layer is a hot oil pipe layer, the middle layer is a rock wool insulating layer, and the outer layer is a cladding layer. The insulating pipes are arranged from the bottom to the top, then turned to one side and mounted from the top to the bottom, and then turned to the same side in order. And the hot oil pipe is loaded with heated heat conduction oil. The device of the invention has the advantages of high stirring efficiency, ensured asphalt mixture quality, compact equipment and low cost.

The invention discloses a solar heat accumulator used for regulating the temperature difference of a greenhouse and relates to a temperature regulating device for agricultural greenhouses. The solar heat accumulator used for regulating the temperature difference of the greenhouse is characterized in that the solar heat accumulator is composed of a heat storage barrel, a heat exchanging coil and a heat preservation cotton-padded covering, wherein the wall of the heat storage barrel is of a cylindrical structure, the inner space of the heat storage barrel forms an air heat exchanging chamber, cooling ribs are arranged on the inner wall of the heat storage barrel and are annularly and evenly distributed in the air heat exchanging chamber, the heat exchanging coil is arranged in the wall of the heat storage barrel, a hot oil input port is formed in the upper end of the heat exchanging coil, an oil return output port is formed in the lower end of the heat exchanging coil, the heat preservation cotton-padded covering is mounted on the outer wall of the heat storage barrel, an air return input port is formed in the upper end of the solar heat accumulator, a hot air output port is formed in the lower end of the solar heat accumulator, and the air return input port is communicated with the hot air output port through the air heat exchanging chamber. According to the solar heat accumulator, solar energy is stored in the solar heat accumulator, when temperature in the greenhouse drops at night, heat is released gradually so that the diurnal temperature difference in the greenhouse is reduced.

The invention relates to an indoor air conditioning system and a control method thereof. The indoor air conditioning system comprises a fan coil system, a ventilation system, a fan system and a central control device. A first air inlet and a first air outlet of the fan coil system are used for communicating with an indoor space. A second air inlet of the ventilation system is used for communicating with the external environment. A second air outlet is used for communicating with the indoor space. The fan system is arranged in the indoor space. The central control device is used for obtaining an indoor temperature value, an indoor humidity value, an outdoor humidity value, an outdoor temperature value and an indoor target somatosensory temperature value and controlling operation of the fancoil system, the ventilation system and the fan system according to the indoor temperature value, the indoor humidity value, the outdoor humidity value, the outdoor temperature value and the indoor target somatosensory temperature value. According to the indoor air conditioning system, the indoor temperature value is reduced through the fan coil system and the ventilation system, a flowing speed of air in the indoor space is increased through the fan system, the somatosensory temperature of a human body is reduced, and the overall energy consumption of the indoor air conditioning system is reduced.

The invention provides a compound crystallization device, a compound preparation system and a compound crystallization process, and relates to the technical field of compound preparation. The compoundcrystallization device comprises multi-stage cooling units; the cooling units comprise cooling chambers; refrigeration modules are arranged in the cooling chambers; multi-stage cooling chambers communicate with one another sequentially; and in the two adjacent stages of cooling units, the next stage of refrigeration module is used for enabling the temperature of the cooling chamber of the stage of the cooling unit to be less than the temperature of the cooling chamber of the previous stage of cooling unit. The compound preparation system comprises a solution concentration device and the compound crystallization device. The technical problems in the prior art that when the temperature of compound clear liquid needs to be reduced from high temperature to a certain temperature range in the process of crystallizing the compound by a biological fermentation method, the heat release duration time of the compound clear liquid is too long, heat release at each position is too non-uniform, thecondition that local crystallization is too fast or too slow is liable to occur, the crystal granularity deviation is too large and the quality of the compound finished product is seriously influenced are solved.

The invention provides a double-station alternate cast-welding production process. The double-station alternate cast-welding production process is characterized by comprising the following step of S1, alternate cast-welding. A cast-welding system arranged in a cast-welding area comprises a cast-welding unit, a plurality of sets of lead immersion units and cast-welding molds arranged in one-to-one correspondence with the lead immersion units, the cast-welding unit bears a storage battery pack, and the cast-welding molds obtain molten lead from the lead immersion units to the cast-welding unit to be subjected to cast-welding work together with the storage battery pack; and the multiple cast-welding molds alternately convey the molten lead needed by cast-welding to the cast-welding unit. When one set of mold performs cast-welding work at a cast-welding station, another set of cast-welding mold synchronously completes lead immersion in another lead immersion mechanism and waits for conveying, and the cast-welding is performed by alternately advancing in this way, so that the production time is greatly saved.

The invention belongs to the technical field of end plate manufacturing and provides a steel coil end plate production line. The steel coil end plate production line comprises an extrusion device, a cooling device, a trimming device, a forming device and a recovering device which are successively arranged. The extrusion device comprises a horizontally arranged charging barrel, an aluminum foil sheet coats the outer wall of the charging barrel, one end of the charging barrel is closed while an extrusion die is arranged at the other end of the charging barrel, an extrusion port is formed in theend part of the extrusion die, and the extrusion port is strip-shaped; a feed inlet is formed in the charging barrel, a screw is axially arranged in the charging barrel, one end of the screw penetrates the closed end of the charging barrel and is connected to a rotating motor while the other end of the charging barrel is connected to the peripheral inner wall of the charging barrel through a bearing and a connecting rod, and a blade is fixedly arranged on the screw. The steel coil end plate production line provided by the invention solves the technical problems that it is time- and labor-wasting to produce existing coil end plates, the cost is high, the coil end plates are not recovered, the quality of the panels is not high and the like.

The invention provides a lead-acid storage battery cast-weld production line. The lead-acid storage battery cast-weld production line comprises a feeding conveying system, at least one set of cast-weld production systems distributed in the conveying direction of the feeding conveying system, a discharging conveying system connected with the discharging ends of the cast-weld production systems, and a groove entering system arranged on a discharging path. The feeding conveying system and the multiple sets of cast-weld production systems distributed corresponding to the feeding conveying system are arranged, multiple sets of lead dipping units and cast-weld molds corresponding to cast-weld units are arranged in the cast-weld production systems, the feeding conveying system automatically conveys and distributes storage batteries to all the cast-weld production systems, then the multiple sets of cast-weld molds are alternately matched with the cast-weld units for cast-weld operation, and therefore the multiple sets of cast-weld production systems can work simultaneously under one production line, and all the procedure structures in all the sets of cast-weld production systems are in close fit to complete continuous cast-weld.