184results about How to "Less cost increase" patented technology

The invention relates to a preparation method of a functional polyester fiber. The preparation method comprises the following steps: performing esterification by stages, wherein dihydric alcohols, polyhydric alcohols and functional inorganic powder are mixed according to a certain mole ratio, in the first esterification stage, acid is slightly excess to ensure that monomers with low capability of participating in esterification reaction in the polyhydric alcohols fully react and are grafted into polyester molecular chains, and in the second esterification stage, the dihydric alcohols are replenished to control the terminal carboxyl group of copolyester. The preparation method has the advantages that polyhydric functional groups can improve the apparent viscosity of a system and play a role in wrapping the introduced functional inorganic powder (such as far infrared ceramic inorganic powder, titanium dioxide powder and zinc oxide antibacterial powder), thus improving the dispersion uniformity of particles; settlement is unlikely to happen in the polymerization process and then functional polyester is prepared through condensation polymerization; the functional polyester fiber is finally prepared by carrying out melt spinning on the prepared polyester, has good moisture absorption property and flexibility and can be widely used for preparing far-infrared moisture absorbing and sweat releasing antistatic and antibacterial fabrics next to the skin.

The invention discloses an access control system and a control method thereof. The access control system is characterized by comprising an access control controller, a fingerprint collector and an electric control lock. The access control controller is connected to the fingerprint collector and the electric control lock, and is used for controlling the electric control lock to open and close according to the fingerprint information collected by the fingerprint collector. The access control controller stores the fingerprint information table, which contains fingerprint information of different fingers of legal users, identification codes corresponding to the fingerprint information of each finger, and access control codes of each legal user. The fingerprint collector is used for collecting fingerprint information of users and transmitting the information to the access control controller. The electric lock is used for controlling the door to open and close according to the instructions sent by the access control controller. The access control system integrates the advantages of code input and fingerprint input together and largely improves the safety of the access control system.

The invention discloses a blade state monitoring device and a monitoring method of a wind turbine generator system. The blade state monitoring device comprises a sensor and a controller, wherein the sensor is arranged on a tower rack, a cabin or a generator of a wind turbine generator system with blades, and is used for monitoring the distance between the sensor and a sucking surface of a blade, and used for acquiring actual distance data between the sucking surface of the blade and the sensor; the controller is connected with the sensor so as to receive the actual distance data output from the sensor, and is used for judging the torsion state of the blade according to initial distance data and the actual distance data between the sucking surface of the blade and the sensor. According to the blade state monitoring device, as the distance between the sensor and the blade is monitored through an external sensor, and whether the torsion deformation of the blade is too large or not is judged according to the acquired actual distance data and the initial distance data, whether the blade has the risk of cracking or structural abnormity or not can be judged, corresponding measures such as repairing can be taken in time, the loss caused by blade cracking can be reduced, and meanwhile the cost of blade component replacement can be reduced.

The invention discloses an intelligent elevator and belongs to the intelligent control field of the elevator, and the elevator can automatically call, cancel stoppage and give an alarm when people is trapped in an elevator due to a fault. Upon a controller of a fingerprint access control machine judges out correct fingerprint information and gives out an opening command, the fingerprint information is transmitted to a data analyzing module through a 3G communicating module, the data analyzing module transmits the existing employee work floor information corresponding to the fingerprint information to a main elevator controller through RS 232 serial ports, when the employee work floor is more than one, the elevator controller gives out the command to start 'up and down keys' outside the elevator and related 'floor keys' inside the elevator for intelligent calling, and the employee can cancel calling and select the floor by again pressing the keys. A displayer is added with a sign of 'a surplus effective load for the elevator' and pressure sensors are arranged outside and inside the elevator, thereby avoiding the phenomenon of 'nobody enters into the elevator under stoppage', 'the elevator still stops in capacity load', ' the elevator still stops in idle load and without calling', and ' the elevator cannot give the alarm when people is trapped'.

The system includes generator, vapor - vapor injector, compressor, condenser, expansion valve, evaporator, vapor - liquid injector, and heat exchange tube etc. In procedure of using air condition, refrigeration in jet type driven by residual heat of tail gas is always operated; and compressor to compress refrigerant supplies deficient cool quantity. The said two methods share same set of condenser, evaporator, and expansion valve. Based on current refrigerating system, the invention uses residual heat of tail gas by adding few parts and cost so as to realize energy saving. Comparing prior art, the system saves energy about 10úÑ for general saloon car, and saves more energy for saloon cars in large and middle size. Features are: no moving part, simple and reliable.

The invention relates to a preparation method of an easily dyed polyester fiber with high hydrophilicity. The preparation method comprises the following steps: performing esterification by stages, wherein dihydric alcohols, polyhydric alcohols and polyethylene glycol macromolecules are mixed according to a certain mole ratio, in the first esterification stage, acid is slightly excess to ensure that parts with low capability of participating in esterification reaction in the polyhydric alcohols fully react and are grafted into polyester molecular chains, and in the second esterification stage, the dihydric alcohols are replenished to control the terminal carboxyl group of copolyester; and then performing condensation polymerization to prepare the easily dyed polyester with high hydrophilicity. The preparation method has the advantages that the easily dyed polyester fiber with high hydrophilicity is finally prepared by carrying out melt spinning on easily dyed polyester with high hydrophilicity; polyhydric active sites in the fiber, ether bonds in flexible chain polyethylene glycol and sulfonate groups in binary acid have strong adsorption functions and can endow the fiber with good moisture absorption property and dyeing property; the easily dyed polyester fiber with high hydrophilicity can be widely used for preparing moisture absorbing and sweat releasing antistatic fibers made into fabrics next to the skin; the easily dyed polyester fiber with high hydrophilicity has an obvious modification effect and is especially suitable for the melt direct spinning process.

The invention provides a preparation method for multi-functional hydrophilic polyester fibers. The method is characterized by specifically comprising the following steps: firstly, mixing terephthalic acid with ethylene glycol to prepare a paste; adding into an esterfying reactor to carry out first esterfying reaction; when the collecting quantity of byproducts reaches 82-95% of a theoretical value, adding sorbitol and polyethylene glycol to carry out second esterfying reaction; after finishing esterfying reaction, performing polycondensation reaction on obtained esterfied products so as to obtain a hydrophilic polyester chip; secondly, preparing nanometer coffee carbon powder; thirdly, preparing nanometer bamboo charcoal powder containing an ultraviolet resistor; fourthly, performing fusing granulation on the nanometer bamboo charcoal powder containing the ultraviolet resistor and the hydrophilic polyester chip so as to obtain functional master batch; fifthly, performing fusing spinning on the functional master batch and the hydrophilic polyester chip so as to obtain the multi-functional hydrophilic polyester fibers. The multi-functional hydrophilic polyester fibers have great hydrophilic performance and continuously have the functions of the ultraviolet resistor and the bamboo charcoal for a long term.

A method for realizing automatic short message reply for cell phones, wherein it is determined whether to configure the cell phone into automatic reply after receiving the short message, when the cell phone is set to automatic reply, then determining whether there is the same short message sender as any sender who has not replied the short message in the cell phone, if the two senders are different, transmit the corresponding reply information according to the state of the cell phone user.

The invention discloses nano-metal self-repairing lubricating oil for mechanical seal elements and the process for preparation, which comprises the following components, the weight percentage content which occupies the total amount of self-repairing lubricating oil is that nano-metal powder which is 0.07-0.15%, nano-metal powder body dispersing agent which is 0.2-1% and disperse medium 98.9-99.7%. The process for preparation of the invention comprises the following steps: adding nano-metal powder body dispersing agent which is needed by proposition into disperse medium to evenly stir, further adding nano-metal powder according to the above proposition, properly stirring till nano-metal powder has no obvious settlement, placing with a container into a KH-700 type ultra-audio wave oscillator to oscillate 20-30 minutes, wherein source of power is 500-600w, and getting product. The nano-metal self-repairing lubricating has low production cost, which is beneficial for popularizing, and can lead the gap between friction pairs to be optimized, and the nano-metal self-repairing lubricating oil can not be dropped off after a self-repairing layer is formed, operation with low friction factor of equipment is kept, and the nano-metal self-repairing lubricating oil is energy-saving and environmental-friendly, which can effectively prolong maintenance down periodic time, and lowers maintenance cost.

The invention provides a hydrophilic polyester fiber containing coffee carbon and a preparation method of the hydrophilic polyester fiber. The hydrophilic polyester fiber containing coffee carbon is characterized by comprising a hydrophilic polyester fiber body and nanoscale coffee carbon powder scattered in the hydrophilic polyester fiber body. The hydrophilic polyester fiber containing coffee carbon is good in hydrophilicity, can be used for deodorizing, warming and is dried quickly, and brings touch sensation of enjoying refreshing and comfort to consumers.

The invention relates to a preparation method of flexible polyhydroxyl polyester fibers. The preparation method comprises the steps of mixing dihydric alcohol, polyhydroxyl and polyethylene glycol macromolecules according to certain molar ratio, esterfying in different stages, wherein slightly excessive acid is used in a first esterfying stage to ensure that parts of polyhydric alcohol, which has low ability to be involved esterification reaction, can be fully reacted and grafted into a polyester molecular chain; supplementing dihydric alcohol to regulate terminal carboxyl group of copolyester in a second esterfying stage, and then carrying out condensation polymerization to prepare flexible polyhydroxyl polyester; and performing melt spinning to the flexible polyhydroxyl polyester to prepare the flexible polyhydroxyl polyester fiber. The flexible polyhydroxyl polyester fiber has good moisture absorption performance and softening property, and the fiber can be dyed in a mild condition and has good dyeing performance due to the polyhydroxyl active sites in fiber and ether bonds in flexible chain polyethylene glycol; the flexible polyhydroxyl polyester fiber can be widely applied to preparation of antistatic moisture-absorption and sweat-releasing fibers and used as a closed-fit fabric. The modification effect is remarkable and the method is particularly suitable for melt direct-spinning process.

The invention relates to a resistor sampling isolation current detection circuit. The circuit comprises: a half-bridge circuit and a linear current sensor circuit. The half-bridge circuit comprises: an upper bridge transistor, a lower bridge transistor and a sampling resistor. The linear current sensor circuit comprises: a linear current sensor chip, a bootstrap capacitance charging circuit, a voltage stabilization capacitor and an output pullup resistor. The bootstrap capacitance charging circuit is formed by a diode and a charging capacitor. The current detection circuit of the invention also comprises: a charge pump circuit, a charge pump starting circuit, a photoelectric isolating circuit and a signal processing circuit. An output terminal of the charge pump circuit is respectively connected with a floating power supply terminal and a floating ground terminal of the linear current sensor chip. The charge pump starting circuit provides power for the charge pump circuit through the half-bridge circuit. An input terminal of the photoelectric isolating circuit is connected with the output terminal of the linear current sensor circuit. The output terminal of the photoelectric isolating circuit is connected with the output terminal of the signal processing circuit. After processing a signal, the signal processing circuit transmits the processed signal to a post-stage control circuit. The current detection circuit of the invention is suitable for detecting various kinds of half-bridge circuit currents in an electric power electron technology field.

The invention relates to an improved half-opened wear-resisting impeller, in which, the vanes and the web are made of different materials and the vanes is made of high-abrasive material and then combined with the web, so that the operation life of the integral impeller has increased greatly.

The invention provides manufacturing technique of highlight floor base material. The manufacturing technique of the highlight floor base material comprises steps of wood raw material peeling, chipping, wood chip screening, washing, pre-cooking, cooking, hot grinding, glue mixing, drying, formation and prepressing, slab hot pressing, cooling tempering, sanding saw cutting, grading and packing, wherein in a drying step, moisture content after drying is 9.0-10.5%; in a slab hot pressing step, hot pressing temperature is 170-225 DEG C, five sections of temperature zone are adopted, hot pressing pressure is 0-4MPa, and a hot pressing factor is 7.2-8.0s / mm, maximum pressure is 3-3.7MPa. A small step is arranged at the top end of the highest density in density distribution of a fracture surface and gradually transits to a core layer, and surface highest density is 1100-1150kg / m<3>; in a sanding step, bearing jump of a sander drum is controlled within 2.0mm / s, and in the fine sand, a tape of more than 150 meshes is used to process. The manufacturing technique of the highlight floor base material has high surface smoothness and evenness, surface density and fracture density distribution are matched with pressing and pasting technique, and moisture content is control with quite narrow fluctuation range.

The invention relates to a preparation method of high-hydrophilicity flame-retardant polyester fiber, which comprises the steps of (1) enabling a copolymer flame retardant to react with polyalcohol to obtain CEPPA (carboxethyl phenylphosphinic acid)-polyalcohol; (2) enabling hydroxyl-terminated siloxane to react with ethylene glycol in the presence of a catalyst to obtain a hydroxyl-terminated siloxane-ethylene glycol solution; (3) preparing slurry, and adding the prepared slurry into an esterification reaction kettle to perform a first esterification reaction; (4) when the quantity of the collected byproducts reaches 82-95% of the theoretical value, adding polyalcohol, sodium sulfo bis(hydroxyethyl) isophthalate (SIPE) and polyethylene glycol (PEG) to perform a second esterification reaction; (5) after the esterification reaction, adding the products obtained by the steps (1) and (2) into a reaction kettle, and after the condensation polymerization reaction, performing melt spinning to obtain the high-hydrophilicity flame-retardant polyester fiber. The limit oxygen index of the polyester fiber prepared by the method provided by the invention is over 30%, the moisture regain is 0.6-2.0%, and the fiber has relatively high moisture regain and is comfortable to wear.

The invention belongs to the repeater system design field in the communication field, in particular relates to a self-excitation detecting and processing method of a CDMA (Code Division Multiple Access) Repeater. The method specifically comprises: a detection procedure is preset above a CPU (Central Processing Unit) of the existing repeater monitoring unit, wherein the procedure at least comprises two working steps of self-excitation detection and self-excitation processing; in the self-excitation detecting step, whether output power variation of the repeater is in proportion to gain variation of the repeater is detected so as to judge whether the repeater generates self-excitation, if the repeater generates self-excitation, self-excitation processing measures are taken in the detection procedure, i.e. uplink and / or downlink automatic gain control are performed or the power supply is switched off directly, and if no self-excitation happens, the device can be operated normally. According to the invention, self-excitation of CDMA repeater is detected and solved in good time, safe and reliable operation of the CDMA repeater device is ensured, influence of self-excitation of the existing CDMA repeater device on a system is solved, and practical requirements of clients can be met effectively.

The invention relates to a hydrophilic polyester fiber modified by cellulose nanocrystal and a preparation method thereof and aims to solve a problem of a poor hydrophilicity of conventional polyester. The preparation method includes following steps: (1) mixing a cellulose nanocrystal aqueous suspension liquid and 75-85% by weight of ethylene glycol and removing water from a mixed liquid to prepare an ethylene glycol suspension liquid of the cellulose nanocrystal; (2) preparing a mixed slurry liquid from the ethylene glycol suspension liquid of the cellulose nanocrystal and terephthalic acid; (3) preparing a catalyst liquid form the balanced ethylene glycol and a catalyst; (4) mixing the mixed slurry liquid, the catalyst liquid and a thermal stabilizing agent, and performing a first esterification reaction in a reaction kettle with stirring and heating; (5) performing a secondary esterification reaction with addition of a polyhydroxy-alcohol; (6) performing vacuumizing condensation polymerization to obtain a hydrophilic polyester melt, and cooling and pelleting the melt to obtain a hydrophilic polyester chip; and (7) performing melt spinning to the hydrophilic polyester chip to prepare the hydrophilic polyester fiber.

The invention relates to a device for online detection of photovoltaic glass strength. A carrier roller is arranged on a carrier roller bracket, photovoltaic glass moves on the carrier roller, the carrier roller bracket is provided with a photoelectric sensor, the photoelectric sensor is arranged below the photovoltaic glass, corresponds to the longitudinal axis of the photovoltaic glass, and is connected with a first timer arranged inside an electric control cabinet, the electric control cabinet is further provided with a second timer and is fixed on a support, the support is provided with an electromagnet and a supporting rod, the electromagnet corresponds to an armature fixed on one end of a connecting rod, the other end of the connecting rod is fixedly provided with a hammer body, the connecting rod is articulated with the supporting rod, and the first timer and a second timer are both connected with the electromagnet. In the invention, a lever principle is utilized for realizing the online detection of the photovoltaic glass strength, a photoelectron sensor and electromagnetic induction principle is used for realizing automatic control of online detection of the photovoltaic glass strength so as to realize the automatic online detection of the photovoltaic glass strength, and repetitive manual work and batch spot-check destructive tests are replaced so that the cost is reduced.

The invention provides a method for preparing manganese-aluminium hard-magnetic alloy, which is characterized by: (1) heating the raw material alloy comprising transition metal elements, rare earth elements and non-metallic elements to obtain melting alloy; (2) rapidly quenching in a speed of 1*10<5>-1*10<6> DEG C / s to obtain an alloy band; and (3) hot working the alloy powder under the protectionof vacuum / inert atmosphere. The method has advantages of low cost increase on raw material compared with the initial prescription, comprehensive utilization of rapid quenching and hot working, greatincrease of magnetic property of the products and easy operation and production.

A lancing device capable of preventing needle unloading caused by misoperation includes a pen cap, a cap base and a needle unloading rod. The lancing device is characterized in that a sliding groove is formed in the cap base, the front of the sliding groove is provided with a channel leading to the connection end of the pen cap and the cap base, and a shielding block is arranged on the sliding groove; a safety cock is arranged in the sliding groove in a sliding mode, and the safety cock is provided with an elastic body. When the pen cap is connected with the cap base, the pen cap pushes against the safety cock in the connection end, the safety cock is thus forced to be located at the rear end in the sliding groove, at the moment, the shielding block blocks the motion path of avoidance of the elastic body, and the elastic body is forced to block the motion path of a top block which moves forward along with the needle unloading rod by occupying the position; when the pen cap is separatedfrom the cap base, and the safety cock is located at the front end in the sliding groove, the elastic body is away from the shielding block and moves forward along with the needle unloading rod at the moment, the elastic body avoids the collision with the top block, and the motion path of the top block which moves forward along with the needle unloading rod is open. The lancing device solves thesafety problem of an existing lancing device in the aspect of prevention of needle unloading caused by misoperation.

The invention discloses an access control system based on fingerprint identification. The access control system comprises a center control unit, a fingerprint identifier, a fingerprint memory, a GPS chip, a transceiving module, a temperature sensing module, a terminal module, an alarm module and an electronic lock. The center control unit is used for controlling the electronic lock to be locked or unlocked according to fingerprint information identified by the fingerprint identifier; the fingerprint identifier is used for identifying users' fingerprint information; the fingerprint memory stores a fingerprint information table; the GPS chip is used for obtaining users' position information; the transceiving module is used for sending the fingerprint information and the position information; and the temperature sensing module is used for automatically collecting temperatures of users' fingers pressing the fingerprint identification position. The access control system not only is combined with the advantages of code type input and fingerprint input, but also obtains the position information through the GPS chip, so that each time the access control system is opened successfully, corresponding workers' fingerprint information and position information are also recorded in real time, and the safety of the access control system is improved.

The invention discloses an internal-recycle type card receiving and sending method and a card machine thereof. The card machine comprises a stand, a card clamp, a card internal-recycle passage, a card receiving and sending mechanism and a card transmitting mechanism, wherein the card clamp is communicated with the card internal-recycle passage, the card clamp, the card receiving and sending mechanism and the card transmitting mechanism are all arranged on the stand, the front side of the card clamp is provided with the card transmitting mechanism, the rear side of the card clamp is provided with a oblique card transmitting mechanism, an included angle is formed by the wheel axle line of the oblique card transmitting mechanism and the axial line of the card clamp, a card is straightly transmitted out of an outlet of the card clamp at the rear side along the axial line of the card clamp by using the oblique card transmitting mechanism and is reversely transmitted to an inlet of the card clamp at the rear side along the included angle, thereby passing in / out of the card clamp. The card receiving and sending method and the card machine can enable the card to pass in / out from the same side of the card clamp, i.e. the card inlet and the card outlet of the card are positioned at the same side of the card clamp, thereby simplifying the structures of the card receiving and sending mechanism and the oblique card transmitting mechanism in the card machine, lowering the cost of the card machine, reducing the occupation area of the card machine and being beneficial to the miniaturization of equipment.

The present invention discloses a method taking fresh garlic, dehydrated garlic slice, garlic residue after extracting garlic oil extract and waste water produced in the garlic slice producing process as raw material, using the function of the garlic fructan hydrolase to produce garlic fructose and oligofructose. The method includes the following steps: (1) making the garlic and the like raw material into garlic pulp; (2) preparing the fructose and oligofructose extract; (3) refining the fructose and oligofructose extract; (4) separating the fructose and oligofructose extract; (5) obtaining the oligofructose; (6) obtaining the fructose. The invention uses fructan hydrolase of the garlic raw material itself, thereby reducing the cost increase of adding exogenous enzyme or edible acid; performs hydrolytic decomposition under normal temperature and pressure and equivalent temperature condition, thereby greatly saving energy sources, reducing apparatus investment, and lowering material cost of products; and uses the garlic residue, and waste water produced in the garlic slice producing process as raw materials, thereby greatly improving the raw material use ratio and reducing environmental pollution.

The invention discloses a hydrophobic emulsified asphalt waterproof coating and a preparation method thereof, belonging to the technical fields of bridge decks and civil construction waterproof coatings. The coating comprises 45-50 parts of asphalt, 2-10 parts of a tackifier, 10-40 parts of a filler, 45-50 parts of a solvent, 0.6-1 part of an emulsifier, 20-30 parts of rubber powder, 10-20 parts of a stabilizer, 0.6-1 part of an anti-aging agent, and 45-50 parts of water. Due to the factors of the hydrophobic emulsified asphalt waterproof coating disclosed by the invention that a softening point is relatively high, cracking is not easy to occur at a low temperature, bonding strength is high, flexibility is improved, water is not easy to accumulate on a surface layer, a self-cleaning capability is strong and the like, the service life of a waterproof coating film is prolonged, the cost of subsequently clearing the surface layer is greatly reduced, and meanwhile the bonding with an upper-layer material is facilitated; the process method is simple in flow, and high in operability; and the hydrophobic emulsified asphalt waterproof coating and the preparation method can be used without transforming existing equipment, and the costs of equipment and raw materials are low, thereby having significant economic benefits, and being suitable for industrialized production. The hydrophobic emulsified asphalt waterproof coating and the preparation method disclosed by the invention can play a great role in the fields such as transportation and civil construction, and have a broad market prospect.

A water-saving reverse-osmosis water purifying machine comprises a machine case and a membrane filtration device for reverse-osmosis treatment of water comprising a booster pump inside the machine case, a reverse-osmosis membrane filtration assembly, a pressure-resistance purified water storage bucket, pipelines, joints, valves, and a control circuit, which is characterized in that inside the machine case is arranged a mixing water storage tank, and the impurity-containing water outlet of the reverse-osmosis membrane filtration assembly is connected with the mixing water-storage tank via a pipeline; the water pipe to be treated which is jointed with the water inlet joint on the machine case is divided into two branched pipes, wherein, the first branched pipe is connected to the inlet of the booster pump via the mixing water-storage tank, and the second branched pipe meets with the impurity-containing water from the mixing water-storage tank and then is connected to the non-purified water outlet of the machine case. In the invention, the impurity-containing water treated by reverse-osmosis membrane can be efficiently reclaimed and reused, thereby preventing wasting of water resource, simultaneously, prolonging the service life of membrane, and improving economic benefit. Additionally, the invention is provided with reasonable structure.

The invention relates to an intelligent passenger elevator vehicle for an airliner and application of the intelligent passenger elevator vehicle. The intelligent passenger elevator vehicle comprises a passenger elevator vehicle body and further comprises a vehicle running track sensor (10) used for obtaining a real-time running track of the passenger elevator vehicle body, a vehicle position sensor (6) used for obtaining a real-time position of the passenger elevator vehicle body, a cabin door position sensor (9) used for obtaining position relationship between the passenger elevator vehicle body and the airliner cabin door and a whole vehicle controller (2) connected with the vehicle running track sensor (10), the vehicle position sensor (6), the cabin door position sensor (9) and the passenger elevator vehicle body. The running track, position and altitude of the passenger elevator vehicle body are controlled according to signals of the vehicle running track sensor (10), the vehicle position sensor (6) and the cabin door position sensor (9). Compared with the prior art, the intelligent passenger elevator vehicle has the advantages of being high in degree of automation, low in cost and the like.

This invention is about heat exchange device. A kind of heat pump type air conditioner set with water heater includes cooling-water machine set, which is composed of compressor, two-position four way change valve, stop valve, condenser, air conditional heat exchanger, water pump and water circulating system. The character is the water heater, heat exchanger, two-position three way magnetic valve and insulating water tank are set. The inlet of hot water heat exchanger is connected with the outlet of compressor, while the outlet with the inlet of two-position four-way change valve through normally open joint of the said two-position three way magnetic valve. The normally closed joint of the said two-position three-way magnetic valve is connected with pipeline from two-position four -way change valve to air conditioner heat exchanger. The hot water heat exchanger respectively connects to tap water pipe and heat insulating water tank. This invention can open hot water heat exchange for providing heated water during indoor heating state of air conditioner set. Thus, it settles the problems of simple structure, conveniently operating and adequate temperature of hot water.

The invention discloses a method for processing a catalytic converter for an automobile. The method comprises the following steps: 1) rolling a cylindrical plate sheet according to the shape of the shell of the catalytic converter and rounding; 2) fixing the rolled cylinder (1) in the manner of direct seam welding; 3) cutting two ends of the welded cylinder to appointed length, and meanwhile, removing welding joints with flaws from two ends; 4) wrapping a gasket (2) onto a carrier (3) by using an adhesive tape; 5) pressing the wrapped carrier (3) into the cylinder (1); 6) performing flow forming on the cylinder (1) by using a spinning fixture; and 7) performing a thrust displacement test on a formed catalytic converter assembly subjected to flow forming. The catalytic converter of the specific structure has the beneficial effects that flow forming end conical forming is performed on the two ends of the shell after the carrier and the gasket are pressed into the shell, thereby reducing the cost increase caused by end conical design and mould opening, omitting an end conical girth welding process and a necking down process in process aspect; and by the adoption of the catalytic converter, a compression gap of the gasket can be well ensured, the risk of carrier breaking is reduced, and mechanical durability of the catalytic converter is improved..

The invention relates to high-hydrophilic flame-retardant polyester and a preparation method thereof. The flame-retardant polyester comprises terephthalic acid, polyatomic alcohol, a copolymerization fire retardant and hydroxyl-terminated siloxane. The preparation method comprises the steps as follows: 1), the copolymerization fire retardant is reacted with the polyatomic alcohol, so that a reaction product CEPPA-polyatomic alcohol is obtained; 2), the hydroxyl-terminated siloxane is reacted with ethylene glycol under the effect of a catalyst, so that a hydroxyl-terminated siloxane-ethylene glycol solution is obtained; 3), a slurry is prepared, and the prepared slurry is added to an esterification reaction kettle for first esterification reaction; 4), when the collection amount of a by-product reaches 82%-95% of a theoretical value, the polyatomic alcohol, 5-sodium sulfo bis(-hydroxyethyl) isophthalate (SIPE) and PEG (polyethylene glycol) are added, and second esterification reaction is performed; and 5), after the esterification reaction, products obtained in the step 1) and the step 2) are added to the reaction kettle, and condensation polymerization is performed, so that the high-hydrophilic flame-retardant polyester is obtained. The high-hydrophilic flame-retardant polyester has a higher flame-retardant function and a higher hydrophilic function.