32results about How to "Adjust supply" patented technology

The invention relates to the field of thermal power generating unit heating modification and discloses a double-extraction adjustable heating system of the thermal power generating unit. By modifying a turbine heating pipeline, a first by-pass pipeline and a second by-pass pipeline connected with a high-pressure cylinder and a medium-pressure cylinder in parallel are arranged on a steam supplying pipeline of the high-pressure cylinder and the medium-pressure cylinder respectively. Each by-pass pipeline is connected with an adjusting gate, a spray type desuperheater and a pressure matcher, and the pressure matcher of the first by-pass pipeline injects exhaust steam of the high-pressure cylinder to achieve high-pressure steam supplying. The second by-pass pipeline injects low-pressure extraction steam of the medium-pressure cylinder to achieve medium-pressure steam supplying. Simultaneously, the opening degree of a middle adjusting gate is adjustable, and the opening degree of the middle adjusting gate is adjusted according to exhaust steam pressure change of the high-pressure cylinder and reheating steam pressure change caused by load change. Therefore, a steam supplying pressure requirement towards the outside is met, qualified steam supplying pressure is guaranteed, a purpose of double-extraction, adjustability and heating of steam of the unit for high-pressure industries and medium-pressure industries is achieved, modification cost of a unit body is saved, and an effect of reducing energy and emission is achieved.

The invention discloses a nutrient regulation and control agent for reducing the lead and cadmium content of leaf vegetables, which comprises the following substances in percentage by weight: 18%-24% of sodium silicate, 16%-20% of calcium carbonate, 9%-12% of magnesium sulfate, 22%-30% of urea, 9%-11% of diammonium phosphate and 16%-21% of potassium sulfate. The using method of the nutrient regulation and control agent comprises the following steps: before planting the vegetable, uniformly mixing the sodium silicate, calcium carbonate, magnesium sulfate, urea, diammonium phosphate and potassium sulfate to obtain a mixture; base-applying all of the mixture, 20-60 kg per mu; turning over and harrowing uniformly so that the regulation and control agent and the polluted soil are uniformly mixed and seeding or transplanting can be performed; or base-applying half of the mixture, and uniformly dispersing the other half of the mixture into the soil after final singling of seedlings; and loosening the soil and sprinkling water. The regulation and control agent of the embodiment of the invention reduces the bioactivity of heavy metals in the soil, reduces absorption of the heavy metals of the leaf vegetable and improves the soil fertility.

The invention discloses a mosquito coil box with a function of adjusting mosquito coil burning speed. The mosquito coil box comprises a mosquito coil cover and a mosquito coil barrel, the mosquito coil cover and the mosquito coil barrel are in inserted connection, the top of the mosquito coil cover is provided with a smoke vent, the bottom of the mosquito coil cover is provided with an annular boss, the mosquito coil cover is provided with an annular vent slot, and a positioning part is arranged on an annular seal plate which is arranged on the annular vent slot. The mosquito coil barrel comprises a barrel wall and a bottom plate, the upper end of the barrel wall is provided with an annular groove matched with the annular boss, a porous supporting plate is arranged on a positioning device which is arranged in the barrel wall, and the supporting plate and the positioning device are in detachable connection. The mosquito coil box with the function of adjusting mosquito coil burning speed has the advantage that defects of short service life, quickness in burning of mosquito coils and troublesomeness in ash pouring of existing mosquito coil boxes are overcome.

The invention discloses a metal bar polishing device which comprises a metal bar clamping device, a metal bar fixing frame, a left polishing machine and a right polishing machine. The metal bar clamping device comprises an installation frame, a pneumatic chuck and a 180-degree rotating air cylinder which drives the pneumatic chuck to rotate on the installation frame. The left polishing machine isfixed to a left lifting frame, the left lifting frame is fixed to an output shaft of a left lifting air cylinder, the left lifting air cylinder is fixed to an output shaft of a left side push air cylinder, the left side push air cylinder is fixed to an output shaft of a left linear actuator, the right polishing machine is fixed to an output shaft of a right side push air cylinder, the right side push air cylinder is fixed to an output shaft of a right linear actuator, the left polishing machine polishes the top face of a metal bar, the right polishing machine polishes the side face of the metal bar, the 180-degree rotating air cylinder enables the bottom face of the metal bar to be upward, and face turning is facilitated for polishing. The structure is simple, the polishing degree can be adjusted, and therefore the surface polishing effect of different metal bars is ensured.

The invention discloses a photovoltaic-diesel-storage hybrid power generation system. The system comprises a photovoltaic power generation system, a diesel generator controller, and a diesel generatorset. The photovoltaic power generation system comprises a photovoltaic assembly and an array, a photovoltaic support, a photovoltaic controller, a storage battery pack, a bidirectional energy storageconverter and an inverter. The photovoltaic support is connected with the photovoltaic assembly. The photovoltaic controller is connected with the photovoltaic assembly and the array. The photovoltaic module and the photovoltaic array are connected with the inverter, the storage battery pack is connected with the photovoltaic controller, the storage battery pack is connected with the bidirectional energy storage converter, the diesel generator set is connected with the diesel generator controller, the inverter and the diesel generator controller are connected with a microgrid, and the above components cooperate with each other to complete a photovoltaic-diesel-storage power generation task. The system has the advantages that recombination optimization is carried out according to the characteristics of different forms of energy structures, fluctuation of photovoltaic power generation power can be balanced, electric energy can be stored when light resources are sufficient, the power supply time is prolonged, and the electric energy quality of the system is improved.

The invention discloses a modifier for reducing methyl mercury pollution in an acidic rice field and a method thereof, which mainly relates to the field of agriculture pollution prevention and treatment. The method comprises basal application of the modifier and moisture management. The preparation method of the modifier is characterized in that weathered coal is prepared to coal-based humic acid, according to the weight percentage, 0.1-0.2% of sodium selenite is added and aged, calcium carbonate with the weight ratio of 1:1.2-1:1.5 is added, and the materials are uniformly mixed. The modifier has the beneficial effect that the modifier is used for the acidic rice field with pH value of 4-6 and the mercury pollution degree of lower than 6 mg/kg, compared with the contrast group, the methyl mercury content of soil and rice is reduce to 60% and more, the pH value of the soil is obviously increased, the modifier has good reappearance, and has the advantages of low cost, high efficiency and easy operation, the paddy rice output and plant biomass are not reduced, and the modifier has high economic effect.

The invention provides a water heating energy conservation system comprising a pump room, a pump room temperature regulation and control device, a water feed pipe connected with the pump room, a water return pipe connected with the pump room, and a branch facility. The branch facility comprises branch heaters and branch control centers. Electromagnetic valves are arranged on pipelines of the branch heaters. Branch fed water temperature detectors and branch returned water temperature detectors are arranged on pipelines of the branch facility. The electromagnetic valves, the branch fed water temperature detectors and the branch returned water temperature detectors are in communication with the branch control centers.

The invention discloses a composition for improving the pregnancy pet reproductive performance, a product and a preparation method thereof, and relates to the technical field of a pet product. The composition for improving the pregnancy pet reproductive performance is prepared from a uterus nutrition regulating agent and an immunomodulator, wherein the uterus nutrition regulating agent is preparedfrom arginine poietin, mercaptamine and lycine; the immunomodulator is prepared from radix astragali powder, chitosan oligosaccharide and tea polyphenol. The composition for improving the pregnancy pet reproductive performance has the advantages that the pregnancy pet physique is enhanced; the stillbirth quantity is reduced; the birth average weight is increased. The invention also discloses a product for improving the pregnancy pet reproductive performance. The product has the same function as the composition for improving the pregnancy pet reproductive performance. In addition, the invention also discloses preparation methods of the composition for improving the pregnancy pet reproductive performance and the product for improving the pregnancy pet reproductive performance. The raw materials in the two preparation methods do not need complicated treatment; the requirement of large-scale equipment is not needed; the cost is low; the operation is simple and convenient; the popularization and application in industry are convenient.

The invention relates to a combined-type pasting moxibustion pad used for placement of multiple warming moxibustion apparatuses. A moxibustion pad body is formed by connecting and combing a plurality of single-face pads (1) which are in detachable connection, and at least one temperature-adjusting moxibustion bag (2) for placement of the warming moxibustion apparatuses is arranged on each single-side pad (1). The combined-type pasting moxibustion pad is capable of performing moxibustion therapy on multiple positions at the same time, wide in application range and convenient to use.

The invention provides a temperature-adjustable carbon crystal heating plate, which comprises a first resin layer, a second resin layer and a carbon crystal heating area arranged between, wherein the carbon crystal heating area comprises a first carbon crystal heating area in the middle of the first resin layer and second carbon crystal heating areas at two ends, copper bars welded on the first resin layer are arranged at the lower parts of two sides of the first carbon crystal heating area and the second carbon crystal heating areas, and gaps exist between the first carbon crystal heating area and the second carbon crystal heating areas at two ends; a first power supply pair is arranged on the lower copper bars at two sides of the first carbon crystal heating area, a second power supply pair and a third power supply pair are arranged on lower copper bars at two sides of the second carbon crystal heating areas, and the first power supply pair, the second power supply pair and the third power supply pair are connected with a deconcentrator; and the heating slurry used in the first carbon crystal heating area and the second carbon crystal heating areas is composed of graphite, nano bamboo charcoal powder, a ceramic emitting agent, an epoxy resin paint, an epoxy resin paint solvent, a curing agent, silica powder and an additive. Through arranging two heating areas, adjustment of the heating energy of the heating plate is realized.

The invention discloses agricultural vegetable rack dropper equipment, and relates to the technical field of vegetable planting. The agricultural vegetable rack dropper equipment comprises a liquid storage tank, the surface of the liquid storage tank communicates with liquid inlet pipelines, the bottom of the liquid storage tank communicates with fixed pipelines, a top plate of the liquid storagetank is fixedly connected with sealing pieces, and the tops of the sealing pieces are in threaded connection with jacking rods. According to the agricultural vegetable rack dropper equipment, the jacking rods A move up and down in the sealing pieces so as to drive extrusion balls to abut against the surfaces of permeation pads, the quantity of permeation nutrient solutions is adjusted, then the nutrient solutions are conveyed into dropper bowls along the fixed pipelines and movable pipelines and drip out to supplement liquid to vegetables, and jacking springs in the sealing pieces push sealingpads upwards, so that the sealing pads are extruded at the bottoms of cover plates, the sealing pads expand to seal gaps between the cover plates and the jacking rods, liquid leakage is prevented, operation is easy, using is convenient, the supplementing amount of each single dropper can be quickly adjusted, the agricultural vegetable rack dropper equipment can adapt to various growth stages of the vegetables, and the cultivation effect is better.

The invention provides a turbine front-back switchable SCR denitration system. The SCR denitration system comprises a turbine, a SCR system body and a turbine front-back switching device; when the initial temperature of airflow is higher than a set value, the turbine front-back switching device guides engine waste gas to push the turbine to do work, then the engine waste gas is subjected to denitration treatment by virtue of the SCR system; and when the initial temperature of the air flow is lower than the set value, the turbine front-back switching device guides the engine waste gas to be subjected to denitration treatment through the SCR system, and then the processed airflow pushes the turbine to do work. According to the turbine front-back switchable SCR denitration system, the air inlet sequence of the turbine and the SCR system is switched by arranging the turbine front-back switching device so as to ensure that the engine waste gas entering the SCR system reaches the temperatureof sufficient catalytic reduction reaction, so that the catalytic reduction reaction is carried out smoothly, and the purification effect of the engine waste gas is improved.