13results about How to "Improve oxygen removal effect" patented technology

The invention relates to the field of deoxidizers, in particular to a deoxidizer for auxiliary deoxidization of boiler feed water as well as a preparation method and application of the deoxidizer. The deoxidant is prepared from the following components: 0.3 percent to 0.5 percent of sodium sulfite, 0.1 percent to 0.3 percent of benzotriazole, 0.1 percent to 0.2 percent of vitamin C, 0.05 percent to 0.1 percent of polyethylene glycol, 0.1 percent to 0.2 percent of acetoxime, 0.1 percent to 0.2 percent of malic acid and the balance of de-softened water. The deoxidant disclosed by the invention shows an excellent deoxidizing effect in a boiler feed water treatment process, has good corrosion inhibition performance, and can effectively keep a system clean and prolong the service life of equipment.

The invention relates to the technical field of boiler water supply pipelines, in particular to a boiler main water supply flow meter with a built-in nozzle, which comprises a preheating flow guide device, a treatment device and a water supply device, and is characterized in that up-and-down communicated flowing of scale inhibitor liquid is realized through a hole channel formed in a leakage disc, and sealing and leakage prevention of the scale inhibitor liquid are realized through a rubber ring; high-temperature steam enters the steam cylinder, so that the internal pressure of the steam cylinder is increased, the steam is expanded to upwards extrude a second disc, the scale inhibitor liquid flows into a hemispherical shell along an explosive conveying pipe and flows out through a hole channel in the hemispherical shell, the scale inhibitor liquid is mixed with boiler main feed water in the cylinder, and the boiler main feed water is prevented from scaling in a pressure pipeline; through the arrangement, the steam conveying structure is arranged in the water supply pressure pipeline of the boiler main water supply flow meter, meanwhile, the steam conveying structure can be used for carrying out starting control on adding of anti-scaling liquid medicine, and linkage control over steam thermal deoxidization and water body anti-scaling on boiler main water supply is improved.

The invention relates to the technical field of waste heat recovery, and particularly discloses a waste heat power generation system based on a low-pressure heater and a control method. The waste heat power generation system comprises a kiln tail SP boiler, a kiln head AQC boiler connected with the kiln tail SP boiler and a steam engine room; the steam turbine room comprises a steam turbine connected with the kiln head AQC boiler, a power generator connected with the steam turbine, a steam condensing assembly connected with the steam turbine, a condensate pump connected with the steam condensing assembly, a shaft seal heater, a low-pressure heater, a deaerator and a water feeding pump. The low-pressure heater is connected with a low-pressure steam outlet of the kiln head AQC boiler and the steam condensing assembly, and the water feeding pump is connected with the kiln head AQC boiler. The low-pressure heater is used for heating condensed water, the temperature of boiler feed water is increased, the load of a boiler economizer is reduced, the use amount of heat exchange tube bundles of the boiler economizer is reduced, and the cost of the boiler economizer is reduced; the deoxidizing effect of the deaerator is improved, oxygen corrosion of a heat exchange pipeline of the boiler is reduced, and the service life of the boiler is prolonged.

The application specifically relates to a preparation method of a low-gas-content silver plate, comprising the following steps: S1, adding silver powder into a crucible to smelt into a silver liquid; S2, adding a blocky silver graphite solid into the silver liquid, the blocky silver graphite solid is dispersed into silver graphite powder at high temperature, the smelting temperature is reduced and heating is performed; S3, pouring the silver liquid into a mold, and cooling to obtain the silver plate. The blocky silver graphite scrap is used as a deoxidizer to remove oxygen in the molten silver liquid, one is that when the blocky silver graphite is placed on the surface of the high-temperature silver liquid, the blocky silver graphite is broken into silver graphite powder and covers the surface of the molten silver liquid, the silver graphite powder is in full contact with the silver liquid and continuously consumes oxygen in the silver liquid; two is that no impurity ions are introduced, and the purity of the silver plate is maintained; three is that the broken silver graphite powder of the blocky silver graphite scrap, since the graphite powder is micron-level or even nanometer-level powder, air gas is difficult to penetrate the silver graphite powder layer and enter the molten silver liquid, and further plays a role of air isolation.

The invention discloses a condenser water replenishing and deoxidizing system applied to a steam turbine unit after heat supply transformation, which comprises a condenser body, a condenser water replenishing and deoxidizing device is mounted in the condenser body, and a water replenishing pipeline, a water replenishing and heating steam pipeline and a temperature reducing water pipeline are arranged outside the condenser body. A water replenishing pipeline regulating valve group and a water replenishing flow measuring device are arranged on the water replenishing pipeline. According to the condenser water supplementing and deoxidizing system applied to the steam turbine unit after heat supply transformation, a water supplementing and spraying mode is adopted for deoxidizing, the contact area of supplemented water and heating steam is increased, the deoxidizing effect can be improved, the steam flow of the heating steam of the deoxidizing device can be adjusted according to the specific steam extraction flow and the water supplementing flow under various working conditions of a steam turbine generator, and the deoxidizing effect is improved. The water supplementing flow and the oxygen content of the condenser can be accurately controlled, the operation safety of a unit can be further improved, the deoxygenation effect meets the oxygen content requirement of safe operation of condensed water, the service life of each low-pressure heater is prolonged, and therefore the safety of the unit is improved.

The invention discloses an intelligent forge piece deoxygenization device which comprises a workbench, a conveying roller is installed on the workbench, a deoxygenization bin is further installed on the workbench, an air blowing assembly is installed in the deoxygenization bin, an oxide layer on the surface of a forge piece is removed through the air blowing assembly, and the air blowing assembly comprises an air inlet and an air outlet; the fan assembly is mounted on the deoxidizing bin; the mounting frame is mounted in the deoxidizing bin, a plurality of groups of blowing parts are mounted on the mounting frame, and the directions of airflow generated by the plurality of groups of blowing parts correspond to different surfaces of the forge piece; airflow holes are formed in the conveying rollers, and the fan assembly communicates with the interiors of the conveying rollers and the blowing part through high-temperature-resistant pipes; according to the intelligent forge piece deoxidizing device, through the combination of the conveying rollers, the deoxidizing bin, the air blowing assembly, the high-temperature-resistant pipe and other assemblies, efficient removal of an oxide layer on the surface of a forge piece is achieved.

The present invention relates to the technical field of deaerators, and discloses a rotary film deaerator, including a deaerator tower, a heating deaerator unit and a pressure relief warning unit. The present invention is provided with a deaerator tower, wherein a water film guide cover is provided inside the deaerator tower, wherein a gap between the water film guide cover and the tower shell exists, so that the water flow moves along the side wall of the tower shell, thereby increasing the contact area between the whole and the water flow, improving the treatment effect, and a guide plate is provided on the side wall of the tower shell, and the spiral track inside the guide plate and the diffusion cover cooperate with each other to ensure that the water flow moves downward in a spiral shape, further increasing the contact time. In summary, by increasing the contact area and contact time, the deaerator effect is improved. When the heat storage filler is blocked, the piston rod is pushed upward, so that the high-pressure gas can be discharged through the gas flow cavity. During the discharge process, the turntable and the push plate are driven to rotate, and then collide with the sound board, thereby making a sound, which has the effect of alarming.

This utility model discloses a heating temperature control device for a biomass boiler deaerator, including a deaerator body. Two connectors are located on the right side of the deaerator body, and a three-way pipe is located on the right side of each connector. An adjusting component is located on the right side of the three-way pipe. A temperature sensor is installed at the upper end of the deaerator body, with its sensing end extending into the deaerator body. The adjusting component includes a rectangular box with an opening. Horizontal pipes are located on both sides of the opening. An adjusting block is slidably connected and sealed inside the rectangular box. An electromagnetic plate is located inside the rectangular box, and the adjacent sides of the electromagnetic plate and the adjusting block are elastically connected by springs. By incorporating a temperature sensor, adjusting component, and interlocking control with a controller, precise temperature control, effective prevention of feedwater pump cavitation, energy saving, and good sealing performance can be achieved.

The present invention relates to a walking beam type heating furnace vaporization cooling system, which belongs to the technical field of heating furnace waste heat recovery. It comprises a water supply tank, an electric water supply pump, a water preheater, a pressure deaerator and a steam drum arranged below the pressure deaerator, which are connected in series in sequence through pipelines according to the flow direction; the steam drum is connected in series with an electric circulation pump through a descending pipeline led from the steam drum, and the electric circulation pump is connected in series with the heating furnace water beam and the water preheater in sequence according to the flow direction through an ascending pipeline led from the electric circulation pump, and then connected in series to the steam drum to form a circulation loop. The system has a simple structure, flexible layout, small footprint, and is energy-saving and economical; a pressure deaerator arranged above the steam drum is used to replace the traditional atmospheric thermal deaerator, which saves space and improves the deoxidation effect; the water preheater is introduced into the circulation loop, and the steam-water mixture converted from the circulating water is used to heat the water supply, thereby reducing the energy consumption of the pressure deaerator and further enhancing the deoxidation effect.

The present invention relates to the technical field of fiber membrane deoxygenation, and more specifically discloses a self-adjusting membrane deoxygenation device for thermal power generation, including a shell assembly, wherein the shell assembly includes a shell, the top and bottom of the shell are respectively fixedly connected with a water inlet end cover and a water outlet end cover, the water inlet end cover and the water outlet end cover are both installed on the shell assembly by bolts, the top and bottom of the shell are respectively provided with a diversion air port and a vent hole, the side of the shell is provided with an air inlet and an air outlet, and the shell is provided with a diversion cavity on the inner side of the air inlet and the air outlet; the present invention is conducive to utilizing the increase in the flow rate of pure nitrogen gas by providing a rectifying assembly and an air pressure cover, so that the rotation of the rectifying assembly adjusts the spiral angle of the fiber, thereby increasing the surface area of ​​the hollow fiber, the outer surface of the fiber has a higher gas exchange interface, the permeation effect of dissolved oxygen is better, and the overall deoxygenation effect is improved.

The invention discloses an automatic control system and method for a deaerator heating steam regulating valve. The system comprises a deaerator heating steam regulating valve control module. The input end of the deaerator heating steam regulating valve control module is connected to a deaerator steam pressure gauge and a deaerator water tank temperature gauge arranged on a deaerator water tank. The output end of the deaerator heating steam regulating valve control module is connected to a deaerator heating steam regulating valve arranged on a steam pipeline connected to a deaerator degassing tower. The deaerator heating steam regulating valve control module controls the opening of the deaerator heating steam regulating valve according to the pressure of the deaerator steam and the water temperature of the deaerator water tank, thereby maintaining the stability of the pressure of the deaerator steam and the water temperature of the deaerator water tank, and avoiding thermal shock of a metal pipe wall caused by excessive fluctuation of the water temperature of the deaerator water tank.

The utility model discloses an analysis deaerator which comprises a water tank and a deaeration tower, an air escape valve is installed in the middle of the upper end of the deaeration tower, a guide pipe is installed at the bottom end of the deaeration tower, the upper side of the water tank is installed at the bottom end of the guide pipe, a pressure valve is installed in the middle of the guide pipe, and a heat conduction partition frame is installed in the middle of the interior of the deaeration tower. A water inlet pipe is mounted at the upper end of the deoxidizing tower, a spraying head is mounted at the position, extending into the lower portion of the bottom end of the interior of the deoxidizing tower, of the water inlet pipe, a steam pipe is mounted at the bottom end of the deoxidizing tower, and a high-pressure spraying head is mounted at the position, extending into the upper end of the interior section of the deoxidizing tower, of the steam pipe. The contact area between high-temperature steam and water can be increased through the spraying head and the high-pressure spraying head, the deoxygenization effect is improved, deoxygenized water can be automatically poured into the water tank along with the increase of the water amount through the arrangement of the pressure valve, and the deoxygenization device is very convenient and rapid to use.

This utility model discloses a deoxygenation device for desalinated water, comprising: a water storage tank with a base at its bottom and a connecting seat at its top; a drain pipe on one side of the water storage tank, with a valve at the connection between the drain pipe and the water storage tank; and a deoxygenation tower body, located on one side of the top of the connecting seat, with a pretreatment component on the other side of the top of the connecting seat. This utility model uses a filter screen and activated carbon plate to initially purify the desalinated water, effectively removing larger particulate impurities, odors, residual chlorine, and other small molecule impurities from the water. This provides a higher quality water source for the subsequent deoxygenation process, reducing the impact of impurities on the deoxygenation equipment and subsequent use. The water tank utilizes a motor-driven stirring frame and an internal bottom wall electric heating plate, which simultaneously heats the water in the tank more evenly, improving heating efficiency and creating favorable temperature conditions for deoxygenation, thus enhancing the deoxygenation effect.