49results about How to "Lower suction capacity" patented technology

The invention provides an air conditioner and a heating control method thereof. Besides a refrigerant main loop of a compressor, a reversing valve, an indoor heat exchanger, a throttling device and anoutdoor heat exchanger connected in series, a bypass defrosting loop is additionally added, one end of the bypass defrosting loop is connected to the position between the compressor and the reversingvalve, and the other end of the bypass defrosting loop is connected to the position between the throttling device and the outdoor heat exchanger; and a controller is additionally arranged, so that when the air conditioner is in a heating mode and defrosting operation is started, the bypass valve is opened, part of refrigerant discharged by the compressor is directly discharged to the outdoor heatexchanger through the bypass defrosting loop, and the proportion of the refrigerant passing through the bypass defrosting loop to the refrigerant discharged by the compressor is adjusted according tothe temperature of a coil pipe of the outdoor heat exchanger. According to the air conditioner and the heating control method thereof, defrosting can be carried out during continuous heating operation without switching to a refrigeration mode, and therefore heat is not absorbed from a room; and the refrigerant flow of the refrigerant main loop and the bypass defrosting loop is controlled, so thatoutdoor defrosting can be guaranteed, and the indoor heating effect can be ensured.

The invention discloses a refrigeration circulating system with a double-stage-injection ejector. The refrigeration circulating system comprises a compressor, a condenser, a gas and liquid separator, a first throttling mechanism, a second throttling mechanism, a first evaporator, a second evaporator and the ejector with a double-stage injection function which are connected on a pipeline, the ejector is provided with two suction chambers and two diffusers, and two refrigerant flows with different evaporating temperatures from the two evaporators are respectively injected. The double evaporators with different evaporating temperatures are arranged and can match with change of the temperature of an air side better, and irreversible loss in an evaporation heat exchange process can be reduced. Simultaneously, higher outlet pressure of the ejector with the double-stage injection function can be obtained as compared with a conventional single-stage ejector, air suction pressure of the compressor is improved, air suction specific volume is reduced, and accordingly a performance coefficient and refrigerating capacity or heating capacity of unit volume of the system are further increased. Accordingly, the refrigeration system has remarkable advantages in terms of improving performances of a refrigeration system.

The invention relates to a device and a method thereof for manufacturing a die wheel laminar flow mixed absorption core. Through additionally arranging laminar flow equipment, the technological structure of a manufactured absorption core and die wheel equipment are changed. Meanwhile, the moving direction and the moving speed of an SAP in a die wheel cover can be controlled. In this way, the SAP and the fluff pulp are mixed uniformly. On the condition that the SAP and the fluff pulp are mixed orderly, the mixing ratio of the SAP in the absorption core is increased. Since the mixing ratio of the SAP in the absorption core is increased, the absorption core is lighter and thinner. Meanwhile, the liquid absorption capacity of disposable hygiene products is increased. The technological structure of the absorption core is changed, wherein the absorption core is provided with multiple layers instead of only one layer. The SAP of different ratios and different performances can be added inside each layer of the absorption core. Therefore, each layer of the absorption core is unique in liquid absorption capacity respectively, so that the rapid liquid absorption function of the absorption core is realized.

The vapor-liquid separation type two-phase liquid separator includes mainly liquid inlet pipe, vertical vapor-liquid separator, liquid separating port and vapor bypass tube. The liquid inlet pipe enters the vapor-liquid separator from its upper part and reaches its bottom. The vapor-liquid separator has liquid separating port installed on the bottom and vapor bypass tube installed in the top. In the present invention, the two phase flow is first vapor-liquid separately, only the separated refrigerant is then divided, and the separated refrigerant vapor in bypassed directly to the outlet of the evaporator. Unlike traditional two-phase liquid separator, which has flow rate distribution affected by the instability and uncertainty of the two-phase flow, the present invention has high design efficiency of air conditioner. In addition, the decrease of evaporator flow rate is favorable to raising energy efficiency of the air conditioner.

The invention discloses a control method and device for electronic expansion valves of multiple chambers of a refrigerating system and the refrigerating system. The control method comprises the following steps that 1, the running state of a compressor, the opening degree of the electronic expansion valves arranged in a thermal bypass and the actual temperature of each chamber are obtained, wherein each chamber is provided with a corresponding preset target temperature; 2, according to the actual temperature of each chamber, the temperature difference between the actual temperature of each chamber and the corresponding preset target temperature is determined; and 3, according to the running state of the compressor, the temperature difference and the current opening values of the electronic expansion valves which correspond to the chambers and are arranged in the thermal bypass, the opening values of the electronic expansion valves which correspond to the chambers and are arranged in the thermal bypass are controlled to be increased to a first preset value or decreased to a second preset value. According to the control method and device for the electronic expansion valves of the multiple chambers of the refrigerating system and the refrigerating system, heating output can be reduced, the purpose of saving energy is achieved, oil return of the compressor is easy, and the compressor is protected.

The invention provides a silicon negative pole piece, a production method and an application thereof. The silicon negative pole piece comprises a negative current collector, an active substance layerarranged on a surface of one side or the surfaces of two sides of the negative current collector, and a functional layer arranged on the surface of the active substance layer, wherein the functional layer includes carbon fibers, metal fibers and a conductive adhesive; and the active material layer includes a negative electrode active material selected from a silicon material. The method comprisesthe following steps: firstly, coating the active substance layer on the surface of a current collector; further coating the functional layer after drying; and drying and rolling to obtain the siliconnegative pole piece. The carbon fiber in the functional layer reduces resistivity of the silicon negative pole piece, enhances a liquid absorption capacity of the silicon negative pole piece, shortensaging time, and is beneficial to improving production efficiency. Due to addition of the metal fibers in the functional layer, the resistivity of the silicon negative pole piece is greatly reduced, toughness of the silicon negative pole piece is enhanced, and the silicon negative pole piece is effectively prevented from powder falling.

The invention provides a compressor in a mode that springs impact an air suction mouth to directly suck air, and the compressor comprises a casing body. A cassette mechanism assembly is arranged in the casing body; the outer wall of the casing body is connected with an air suction pipe; an anechoic cavity is arranged in the casing body corresponding to a pipe mouth of the air suction pipe. The invention is characterized in that a connecting pipe is connected with the pipe mouth of the air suction pipe and the air suction mouth of the anechoic cavity; one end of the connecting pipe is provided with a turned-over edge to mantle the pipe mouth of the air suction pipe, and the other end of the connecting pipe forms an even joint with the air suction mouth of the anechoic cavity; the outer wall of the connecting pipe is provided with the springs; the springs impact a turned-over edge mouth of the connecting pipe to be tightly pasted to the inner wall of the casing body. The invention overcomes the problems of easy distortion and aging, short service life and high cost in high temperature as the prior art adopts the structure that a ripple pipe directly sucks the air. The invention can also reduce noise, and is especially suitable for the improvement of a piston type compressor.

The invention relates to a preparation method of propionyloxy ethyl trimethyl ammonium chloride chitosan fiber. The preparation method comprises the steps of dispersing alkalized chitosan fibers in alcohol, and adding with acryloyloxy ethyl trimethyl ammonium chloride for water bath reaction; separating from mixed solution of alcohol and acryloyloxy ethyl trimethyl ammonium chloride to obtain propionyloxy ethyl trimethyl ammonium chloride chitosan fiber; dispersing into organic solvent aqueous solution, dropwise adding acetic acid aqueous solution, adjusting the pH value, oscillating and separating; and washing, and performing centrifugal dewatering and vacuum drying to obtain the propionyloxy ethyl trimethyl ammonium chloride chitosan fiber. The preparation method has the beneficial effects that (1) the polycation characteristic of the chitosan fiber is improved and the antibacterial property of the chitosan fiber is improved; (2) the reacted fiber has the characteristics of high antibacterial property and high liquid absorbing property, and the base form and the integrity of the fiber can be kept after liquid absorbing; and (3) the preparation method of the propionyloxy ethyl trimethyl ammonium chloride chitosan fiber is simple, the cost is low and the method is easy to realize industrial production.

The invention discloses a movable paint spray booth which reduces the emission of waste gas, greatly reduces energy consumption and performs paint spray operation on large-scale equipment. The movablepaint spray booth comprises four hollow vertical columns and an upper frame arranged on the four vertical columns, wherein a top plate is detachably arranged at the upper part of the upper frame; anair supply component or a plurality of air inlets are arranged on the top plate; idler wheels are arranged at the bottoms of the vertical columns; two hollow air sucking collecting pipes are oppositely arranged at the lower parts of the four hollow vertical columns; a side blocking screen, the lower edge of which at least covers the air sucking collecting pipe, is arranged on the upper frame; a plurality of air sucking notches are formed in the inner side of the air sucking collecting pipe along a length direction; the width of each air sucking notch greatly increases from the end parts of thetwo ends of the air sucking collecting pipe to the center of the air sucking collecting pipe; a feeding door which closes the side end of the paint spray booth and can be completely opened is arranged between the two adjacent vertical columns without the air sucking collecting pipes; and air-out nozzles which are connected to an exhaust fan by pipelines are arranged at the middles of the outer sides of the vertical columns.

In a method for changing the lift of inlet valves of an internal combustion engine between a partial lift and a full lift, the lift of the inlet valves being controlled by at least one camshaft, which comprises partial lift cams and full lift cams acting alternatively on the inlet valves, the control times of an inlet valves assigned to the camshaft are adjusted by rotating the camshaft by a certain angle so that the changeover between the partial lift cams and the full lift cams can be carried out at points within a characteristic performance graph of the internal combustion engine at which the suction capacity of the internal combustion engine when using the partial lift cams corresponds essentially to the suction capacity of the internal combustion engine when using the full lift cams.

The invention belongs to the technical field of medical instruments, and particularly relates to an anti-inflammatory and bacteriostatic hydrocolloid oily yarn and a preparation method thereof. The anti-inflammatory and bacteriostatic hydrocolloid oily yarn provided by the invention is composed of the following raw materials in parts by weight of a base material which is reticular polyester fibers, and a hydrocolloid which comprises the following components in parts by weight of 8-12 parts of a thermoplastic elastomer, 30-50 parts of vaseline, 5-15 parts of wool fat, 100-200 parts of liquid paraffin, 10-25 parts of sodium carboxymethyl cellulose, 2-8 parts of an anti-inflammatory and bacteriostatic agent and 5-15 parts of a tissue repair agent. The anti-inflammatory and bacteriostatic hydrocolloid oily yarn provided by the invention has excellent air permeability, absorbability and viscosity, is excellent in skin fitting performance, can resist bacteria, diminish inflammation, stop bleeding and inhibit scar formation, has an obvious effect of promoting wound healing, and is safe and non-irritant.