76results about How to "Improve performance index" patented technology

A subsection compression-subsection heat supply-subsection gas expanding compression type machine set belongs to the technical field of heat pumps/refrigeration, and consists of a compressor, an expander, a heat exchanger, a second heat exchanger and a low-temperature heat exchanger. Gas working substances absorbing heat from the low-temperature heat exchanger and raising temperature enter the compressor; after the gas working substances are compressed in a low pressure compression section, a part of the gas working substances are provided for the heat exchanger to complete the heating of a heated medium at an initial stage; the part of the gas working substances enter the expander and is expanded at a low pressure expansion section; the other part of the gas working substances are provided for the second heat exchanger to complete the heating of a second stage of the heated medium after continuously passing through the whole compression process and raising temperature, and enter the expander from an inlet of the high pressure expansion section of the expander for expanding; the gas working substances completing the expanding work flow through the low-temperature heat exchanger to absorb the heat and raise the temperature and enter the compressor; and a heat regenerator is added to form a regenerative machine set. The gas expanding compression type machine set reduces temperature difference of heat transmission and improves the performance index; when taken as a heat pump, the gas expanding compression type machine set is particularly suitable for occasions with high heating temperature and wide range; and when used for refrigeration, the gas expanding compression type machine set can reduce power consumption.

The invention relates to a method for preparing high-performance neodymium iron boron by using secondary recycled materials, which comprises the following steps: (1) preprocessing the secondary recycled materials of the neodymium iron boron: removing impurities and dust from the secondary recycled materials and quickly drying the secondary recycled materials; (2) preparing the raw materials of the neodymium iron boron; (3) mixing materials: adding the preprocessed secondary recycled materials into the raw materials so as to form the mixed materials, wherein the weight of the preprocessed secondary recycled materials is 10-40% of the weight of the raw materials; (4) performing disproportionation reaction in a hydrogen decrepitation furnace; (5) crushing and milling by a jet mill; (6) mixing by using a double cone-type blender; (7) profiling; (8) vacuum-sintering; and (9) tempering the sintered materials: tempering at 900 DEG C for 1-3 hours for the first time, continuing to warm and tempering at 480-550 DEG C for 4-8 hours for the second time, and then performing the conventional quick air cooling, thereby acquiring a sintered magnet. The neodymium iron boron prepared by using the method is characterized in that the secondary recycled materials are used as the main ingredients, thereby saving a large amount of cost, shortening the production period, lowering energy consumption and meeting the national industrial policy. The performance of the prepared neodymium iron boron permanent magnet material can reach N42SH, and the performance index is very high.

The invention relates to a compression-absorption type refrigerating machine set. The invention is characterized in that a control valve, a coolant liquid pump, a compressor and a newly added throttlevalve are added into a single stage first class absorption type refrigerating machine set to form the compression-absorption type refrigerating machine; coolant liquid from an evaporator or a condenser is conveyed to an absorber or the condenser through the coolant liquid pump or a newly added second throttle valve; coolant steam formed after the coolant liquid absorbs heat enters in the compressor; compressed high pressure coolant steam enters in a generator or a rectifying tower to release condensing heat; after being throttled by the newly added throttle valve, coolant liquid enters in thecondenser together with the coolant steam from the generator or the rectifying tower; and after releasing heat or being throttled by the throttle valve, the coolant steam and the coolant liquid return to the evaporator or the coolant steam and the coolant liquid return to the absorber or the condenser after being throttled by the newly added second throttle valve. The compression-absorption typerefrigerating machine set recycles absorption heat or condensing heat by the compressor, thereby realizing the replenishment to driving heat sources, reducing the amount of recycling cooling water andimproving the performance index of recycling.

A nano-class composite wooden material for plate, tube, or section is proportionally prepared from laminar silicate, high-molecular resin, natural plant fibers, inorganic filler, and chemical assistant through proportional mixing, and extruding out or injection moudling. It is possible to granulate before it is shaped.

The invention provides a camera module assembling method, which comprises the following steps: preparing a first sub lens and a second sub assembly, wherein the second sub assembly comprises a secondsub lens and a photosensitive assembly which are fixed together; disposing the first sub lens on an optical axis of the second sub lens to form an imageable optical system; increasing an actually measured resolving power, acquired through the photosensitive element, of imaging of the optical system by adjusting a relative position of the first sub lens relative to the second sub lens, and reducingthe inclination of an actually measured image plane acquired by the photosensitive element to a second threshold value; and connecting the first sub lens with the second sub lens. The invention further provides a corresponding camera module. The camera module assembling method can increase the resolving power of the camera module; the process capability index of a large batch of produced camera modules can be increased; the entire cost of an optical imaging lens and module can be reduced; the disqualification rate can be reduced; the production cost is reduced; and the imaging quality is improved.

The invention provides a sectional evaporation-compression vapor compression heat pump, belonging to the technical field of residual-heat utilization and heat pump/refrigeration. The vapor compression heat pump aims at overcoming the defects of a vapor compressor provided with a single evaporator when a residual-heat medium has large temperature variation range, and provides a vapor compression machine set which comprises more than two compressors, more than two evaporators, a condenser, a throttle valve and the like and realizes sectional evaporation-compression; low temperature section evaporation-compression can be realized by the low temperature evaporator and the first compressor; high temperature section evaporation-compression can be realized by the high temperature evaporator and the second compressor; the residual-heat medium firstly flows through heating refrigerant liquid of the high temperature evaporator to become refrigerant vapor to be provided for the second compressor, and then flows through heating refrigerant liquid of the low temperature evaporator to become refrigerant vapor to be provided for the first compressor after the temperature is lowered, the first compressor provides the refrigerant vapor for the condenser or the second compressor; and the heat of the heated medium is absorbed by the condenser when the medium flows through the condenser. The sectional evaporation-compression vapor compression heat pump reduces residual-heat transmission temperature difference, improves the performance index of the machine set, and can reduce the power consumption of the machine set when the residual-heat medium has large temperature variation range.

The invention provides a double-effect regenerative absorption-generation system and a regenerative first class absorption heat pump, which belongs to the technical field of heat pumps. The double-effect regenerative absorption-generation system consists of a first generator, a second generator, a first absorber, a second absorber, a third absorber, a steam distributing chamber, a solution throttle valve, a plurality of solution pumps and a plurality of solution heat exchangers. Refrigerant steam is supplied to a condenser by the first generator, the refrigerant steam is supplied to the first absorber by the second generator, the refrigerant steam is supplied to the second absorber by the steam distributing chamber, the refrigerant steam is supplied to the third absorber by an evaporator, refrigerant liquid is supplied to the evaporator by the condenser through the throttle valve, and heat is supplied to outside by the condenser, the second absorber, the third absorber or/and the first absorber to form the regenerative first class absorption heat pump with a double-effect regenerative process.

The invention provides a composite generation first-class absorption heat pump, and belongs to the technical field of refrigeration and heat pumps. The composite generation first-class absorption heat pump is formed in a way that a second absorber is communicated with a first absorber through a second solution pump and a solution heat exchanger; a first absorber is communicated with a second generator through a solution throttling valve; the second generator is communicated with a first generator through a first solution pump; the first generator is communicated with a steam separation chamber through a second solution throttling valve and the first absorber; the steam separation chamber is communicated with the second absorber through the solution heat exchanger; the first generator is communicated with the first absorber; the steam separation chamber is communicated with a condenser; the second generator is communicated with a second condenser; a condenser is communicated with an evaporator through a throttling valve; the second condenser is communicated with the evaporator through a second throttling valve; the evaporator is communicated with the second absorber; the first generator and the second generator are communicated with a drive heat medium pipeline; the second absorber, the condenser and the second condenser are communicated with a heated medium pipeline; the evaporator is communicated with an afterheat medium pipeline to form.

The invention discloses a prism piece which comprises a main body part and multiple prisms positioned on the main body part, wherein the upper surface of the main body part is provided with a symmetrical shaft, the main body part is divided into a first region and a second region which are mutually symmetrical, and the prisms on the two regions are symmetrical relative to the symmetrical shaft; in the first region, each prism comprises a first side face approaching to the edge which is parallel to the symmetrical shaft in the first region and a second side face far from the edge; and in a section from the edge to the interior of the first region, an included angle formed by the first side face and the upper surface of the main body part is gradually increased. The prisms provided by the invention are arranged in an inclined structure, so that the spotlight effect of the prism piece at a center watching position region is improved; after the prism piece is applied to a backlight source, the whole performance index of the backlight source is improved, and thus, the brightness of a display on the center watching position is improved; an irregular structure of each prism is arranged, so that generation of Mohr grain; and a light guide plate is combined with an inverse edge eyeglass, and the surface of each prism is a horizontal plane, so that the abrasion of the prism piece is effectively prevented, and the assembly is convenient.

A heat pump of steam compression type in using water as working media is featured as using water as working media, applying impeller compressor, adding interstage heat taker between various stages of compressors to realize combination of staging compression and interstage heat-take for taking away heat built up by residual heat fluid and compression power consumption of heated fluid at said heat taker and condenser separately, adding heat regenerative unit to be used on superheat of low pressure steam for improving compression course.

The invention provides a compound-typed first class absorption heat pump and belongs to the technical field of waste heat utilization and heat pump/refrigeration. The invention aims at the shortcomingof the single class heat pump and provides a compound integrated type machine set mainly consisting of a first class generator, a second class generator, a first class condenser, a second class condenser, a first class absorber, a second class absorber, an evaporator, a throttle, a solution pump and other basic components. A first class heat pump procedure with high performance index and a low temperature heat supply section consists of the first class generator, the first class condenser, the throttle, the evaporator, the solution pump and the first class absorber; the second class generator, the second class condenser, the throttle, the solution pump and the absorber form a second class heat pump procedure with a high temperature heat supply section and low performance index with the help of the first class procedure; wherein, the second class condenser is communicated with the first class condenser through the throttle and the first class generator is communicated with the second class absorber through a refrigerant evaporation channel; the heat pump can fully take use of the waste heat and has higher energy-saving benefit when in the high temperature heat supply in a wide temperature range; the waste heat refrigeration can make use of driven heat deeply.

The invention provides an overlapping-typed heat pump for extracting heat sectionally, which belongs to the technical field of surplus heat utilization and heat pump/ refrigeration. According to the disadvantages that an overlapping-typed unit for extracting heat in a single segment way has low performance index under the circumstances that the temperature range needed by a heat consumer is wide, the final temperature is high, etc., the invention provides an overlapping-typed unit for extracting heat sectionally. Either the invention comprises an evaporator, a compressor, a compound condenser-evaporator and a throttling valve, and adopts the low-temperature stage heat pump flow of a first working substance to satisfy the high-temperature stage heating need and the low-temperature section heating for the heat consumer at the same time, and then comprises the compressor, a condenser, the compound condenser-evaporator and the throttling valve, and adopts the high-temperature stage heat pump flow of a second working substance to satisfy the high-temperature section heating for the heat consumer, or the convention forms a new heat pump flow by the condenser as well as the throttling valve which are added, and the relative components of the overlapping-typed unit; a surplus heat medium flows through the evaporator to release heat, and heating mediums extract heat from different temperature stages. The invention decreases heat transfer temperature difference, increases the performance index; the invention is more particularly suitable for the occasions of high heat supply temperature and wide range; and the invention can decrease the power consumption when being used in refrigeration.

The invention provides a multi-end heat supply first type absorption type heat pump, which belongs to the technical field of afterheat utilization and heat pump/refrigeration and mainly consists of a first generator, a second generator, a first absorber, a second absorber, a first condenser, a second condenser, an evaporator, a first throttle valve, a second throttle valve, a first solution pump, a second solution pump, a first solution heat exchanger and a second solution heat exchanger, wherein the first absorber provides solution for the second absorber, the second absorber provides solution for the first generator, the first generator provides solution for the second generator, the second generator provides solution for the first absorber, the first generator provides coolant steam for the first condenser, the second generator provides coolant steam for the second absorber and the second condenser, the first condenser and the second condenser provide coolant liquid for the evaporator, the evaporator provides the coolant steam for the first absorber, and the multi-end heat supply first type absorption type heat pump is formed.

The invention provides a different-level compound first class absorption-typed heat pump and belongs to the technical field of waste heat utilization and heat pump/refrigeration. The invention aims atthe shortcoming of a single class heat pump and provides an integrated machine set consisting of a generator, a condenser, an absorber, an evaporator, an absorption-evaporation device, a throttle valve, a solution pump and other basic components; the invention is divided into three types respectively with a common evaporator, a common condenser or no common component; the processes of the heat pump in different levels are compounded through the evaporator or the condenser and/ or waste heat medium channel simply while accompanied by other components; when sharing the evaporator, each condenser is interconnected through the throttle valve or is separated from each other or is separated partly; when under other conditions, waste heat medium enters into and comes out of each evaporator in sequence; refrigerant medium from the condenser enters into the evaporator and the absorption-evaporation device through the throttle valve and is absorbed by solution at each associated connection; diluted solution releases refrigerant into the condenser with the action of driven heat. The heat pump can take use of waste heat and refrigeration with waste heat has high benefit.

The invention relates to the making of high intensity water resistant compound material, which is made by natural plant fiber 20-85 kg being 20-85%, organic monomer 5-60kg being 5-60%, inorganic stuff being 1-20% with 1-20kg, chemical assistance 1-10kg being 1-10%, iniator 0.05-2kg being 0.05-2%, spare material being the primary mixing of natural plant fiber and organic monomer, then with initiator controlling the temperature, filing inorganic stuff and chemical assistance for further mixing, activating the mixture to get the high temperature and high pressure forming product, or compressing, extruding or injecting the wanted product. It can be used for the production of plates, tubes and section bars. It is water resistant, free from contamination, strong in plasticization, and low in cost.

The invention discloses a processing technology for a porcelain tile. The processing technology comprises the steps of firstly, pretreating coal cinder to obtain coal cinder containing less than 0.5% of TiO2, less than 0.05% of V2O5 and less than 0.5% of Fe; secondly, mixing 15-25% of clay, 15-70% of the coal cinder pretreated in the first step, 10-55% of feldspar and 2-10% of additives, and proportioning; and thirdly, carrying out compression molding on the mixed material, and sintering to obtain a finished product. By using the processing technology, the ball milling efficiency is increased, the iron removal effect is improved, the whiteness of a product is greatly improved, and the removed harmful substances can be recovered.

The invention discloses a porcelain tile prepared from 15-25% of clay, 15-70% of coal cinder, 10-55% of feldspar and 2-10% of additives according to a formula, wherein the coal cinder is pretreated through the following steps of (1) sieving the raw material of the coal cinder; (2) recovering iron in the coal cinder through magnetic separation equipment; (3) adding water into the coal cinder, and carrying out ball milling treatment on the coal cinder to obtain a first mixed material; (4) adding water into the coal cinder, and recovering iron powder through iron removal equipment to obtain a second mixed material; (5) adding a bleaching agent into the coal cinder, and carrying out sedimentation and bleaching treatment through a sedimentation tank; (6) carrying out filter pressing treatment on the coal cinder; and (7) drying the coal cinder to obtain coal cinder containing less than 0.5% of TiO2, less than 0.05% of V2O5 and less than 0.5% of Fe. By using the porcelain tile, the ball milling efficiency is increased, the iron removal effect is improved, the whiteness of a product is greatly improved, and the removed harmful substances can be recovered.

The invention provides a small mark parameter self-correction method/system, a readable storage medium and equipment. The parameter self-correction method comprises the following steps: judging whether a current batch production task is a production task for producing small marks or not after receiving the current batch production task; if so, acquiring a water-distribution amount working point parameter of each small mark in a current batch in conjunction with a water-distribution amount temporary value of the conventional mark in a historical production bath of the conventional mark, and meanwhile correcting the pre-loading dehydration coefficient of each small mark according to a correction mode of the pre-loading dehydration coefficient; otherwise, correcting a water-distribution amount rated working point of each conventional mark according to the correction mode of the water-distribution amount rated working point, and meanwhile correcting the pre-loading dehydration coefficientof each conventional mark according to the correction mode of the pre-loading dehydration coefficient. By adopting the parameter self-correction method, the control manner is suitable for the changingworking condition of a cut-tobacco drier, and is compatible with the characteristics of the small marks, and the head material feature indexes and process capability indexes of the production tasks for the conventional mark and the small marks are increased.

The invention relates to a double-generator absorption heat pump which increases a low-temperature heat supply end, which belongs to the technical field of heat pump/refrigeration. A condenser and a throttle valve are increased in a two-stage heat pump which supplies refrigerant vapor to an absorber through an absorber-evaporator and a low pressure generator, wherein the increased condenser is provided with a pipeline which is communicated with an evaporator and the absorber-evaporator through the increased throttle valve; an increased refrigerant vapor channel of the low pressure generator is communicated with the increased condenser; and the increased condenser is provided with a heated medium pipeline which is communicated with the outside. Or an absorber, a solution pump and a solution heat exchanger are increased in the two-stage heat pump which supplies refrigerant vapor to the absorber through the absorber-evaporator and the low pressure generator, wherein the low pressure generator is provided with a pipeline which is communicated with the increased absorber through the increased solution heat exchanger; the increased absorber is provided with a pipeline which is communicated with the absorber-evaporator through the solution heat exchanger and the solution pump; the absorber-evaporator is communicated with the low pressure generator through the solution pump and the solution heat exchanger; the increased refrigerant vapor channel of the evaporator is communicated with the increased absorber; and the increased absorber is provided with a heated medium pipeline which is communicated with the outside. The increased condenser or the increased absorber is taken as the low-temperature heat supply end of a composite heat pump, so that the performance index of a unit is improved and waste heat can be more fully utilized for refrigeration.

The invention provides an absorption type grading heat supply system, belonging to the technical field of waste heat utilization and heat pump/refrigeration. A first generator, a first absorber, a first condenser, a first evaporator, a first solution pump, a first throttle valve, a first solution heat exchanger, a newly-added generator, a newly-added absorber, a newly-added solution pump and a newly-added solution heat exchanger form a primary heat medium heating process; a second generator, a third generator, a second absorber, a third absorber, a second condenser, a second evaporator, a second solution pump, a third solution pump, a second throttling valve, a second solution heat exchanger and a third solution heat exchanger form a secondary heat medium heating process; and a primary heat medium flows through the secondary heat medium heating process and provides a drive heat load and a low-temperature heat load, and a circulating pump realizes primary heat medium circulating flowing. Corresponding parts are additionally provided, thus a series of absorption type grading heat supply systems are obtained.

The invention provides a double-effect regeneration absorption-generation system and a regeneration third-class absorption heat pump, and belongs to the technical field of heat pumps. The double-effect regeneration absorption-generation system consists of a first generator, a second generator, a first absorber, a second absorber, a third absorber, a steam bleeding chamber, a plurality of solution pumps and a plurality of solution heat exchangers, wherein the first generator provides refrigerant steam for a condenser; the second generator provides the refrigerant steam for the second absorber; the steam bleeding chamber provides the refrigerant steam for the third absorber; an evaporator provides the refrigerant steam for the first absorber; the condenser provides refrigerant liquid for the evaporator through a refrigerant liquid pump; the first absorber, the third absorber or the second absorber supplies heat to the outside; and the condenser releases low-temperature heat, so that the regeneration third-class absorption heat pump with the double-effect regeneration process is formed.

The invention discloses a production system of a porcelain tile. The production system comprises a coal cinder preprocessing device for preprocessing coal cinder, a mixing device which is connected with the coal cinder preprocessing device and used for blending and mixing production raw materials of the porcelain tile, a forming device which is connected with the mixing device and used for pressing and molding the production raw materials after blending and mixing, and a sintering device which is connected with the forming device and used for sintering a pressed and molded green tile; the coal cinder preprocessing device comprises at least one magnetic separation device, a ball mill, a de-ironing device and a settlement tank which are sequentially arranged. The porcelain tile produced by the production system is high in whiteness and high in bending strength.