10 results about "Economizer" patented technology

The invention relates to a desulfurization wastewater zero discharging system and method based on waste heat reuse under a low-load working condition. The desulfurization wastewater zero discharging system comprises an economizer flue gas bypass subsystem and a desulfurization wastewater evaporation subsystem, wherein the economizer flue gas bypass subsystem comprises an economizer bypass flue, and can increase the flue gas temperature and the denitration efficiency under the low-load working condition; the desulfurization wastewater evaporation subsystem comprises a wastewater pipeline, a softening box, a concentration device, a wastewater preheater, a flue gas cooler, a heating medium water pump, a heating medium water pipeline, a wastewater pump and an atomization sprayer, and can perform concentration reduction, preheating and atomization on the wastewater to improve the evaporation efficiency of the wastewater. The invention further relates to a method for realizing zero discharging of the desulfurization wastewater under the low-load working condition by using the desulfurization wastewater zero discharging system based on the waste heat reuse. The system and the method havethe characteristics of a simple technological process, and can make effective use of waste heat of the flue gas to realize zero discharging of the wastewater under the low-load working condition of aunit and also improve the system denitration efficiency.

The invention provides a high heating value gas boiler, of which the fuel is high heating value gas. Steam produced by the boiler can be used for power generation, steam supply and heating, so that energy is reasonably utilized. The boiler comprises a firebox, a tail shaft, water walls, overheaters, coal economizers, air preheaters and a horizontal flue, wherein the upper part of the firebox is communicated with that of the tail shaft through the horizontal flue. The boiler is characterized in that the water walls surrounds the firebox; a roof overheater is arranged on the side wall of the tail shaft; a wall enclosure overheater is arranged on the side wall of the horizontal flue; the water walls, the roof overheater and the wall enclosure overheater adopt membrane-type wall structures; at least two burners are arranged on the front wall of the firebox side by side; the lower part of the front water wall on the inner side of the front wall inclines by 5 degrees and extends backwards to the back wall of the firebox to form a boiler bottom water wall; a firebrick layer is arrange above the boiler bottom water wall; and the overheaters comprise a high-temperature overheater, a low-temperature overheater, the roof overheater and the wall enclosure overheater.

The invention discloses an energy-saving device for industrial boiler feed water control loop software and a control thereof. The energy-saving device for industrial boiler feed water control loop software and the control thereof comprises a frequency converter, the frequency converter is connected with a control end of a water feeding pump, the water feeding pump is connected to an economizer output pipeline, a first electric valve and a flowmeter are installed on the water feeding pump in sequence, an economizer input pipeline is connected with a boiler bin, the top end of the boiler bin iscovered with a matched sealing plate, and a first air hole matched with a first air outlet pipe is formed in the sealing plate; a first water bin is fixedly arranged on one side of the outer wall of the boiler bin, and the other end of the first air outlet pipe which is fixedly located inside the first water bin penetrates through the top end of the first water bin. The device has the beneficial effects that water inside the first water bin can be heated by a preheating mechanism to generate steam, finally, the generated electric energy is used for allowing the frequency converter to work, after the boiler bin works normally, the preheating mechanism stops working, the whole device has a very good energy-saving effect, and the inner wall of the boiler bin of t energy-saving device can be cleaned conveniently.

The invention discloses a heat pump system and relates to the technical field of air conditioning equipment. The heat pump system comprises a compressor, a four-way reversing valve, an economizer, a first heat exchanger, a third heat exchanger, a first one-way valve, a third one-way valve, a second one-way valve and a fourth one-way valve, wherein the first one-way valve and the third one-way valve are connected in series and conducting directions of the first one-way valve and the third one-way valve are set in a back-to-back manner; and the second one-way valve and the fourth one-way valve are connected in series and conducting directions of the second one-way valve and the fourth one-way valve are set in a face-to-face manner; a public communication point A is arranged on a pipeline between the first one-way valve and the third one-way valve, and a public communication point B is arranged on a pipeline between the second one-way valve and the fourth one-way valve; the other end of the first one-way valve is conned with the second one-way valve, and a public communication point C is arranged on a pipeline between the first one-way valve and the second one-way valve; and the other end of the third one-way valve is connected with the fourth one-way valve, and a public communication point D is arranged on a pipeline between the third one-way valve and the fourth one-way valve. The heat-pump system has the beneficial effects that a plurality of one-way valves are adopted to form a valve group, so that installing structure is simple, and the workload of workers in the installing process is reduced.

The invention discloses a boiler economizer comprising a thermal insulation shell and a water storage layer. One side of the top of the thermal insulation shell is connected with a smoke inlet, and the other side of the top of the thermal insulation shell is connected with a smoke outlet; high-temperature resistant filter bags are installed below the smoke inlet and the smoke outlet, and the side,close to the smoke inlet, of the water storage layer communicates with a cold water inlet; the other side of the water storage layer communicates with a hot water outlet, and the inner side of the water storage layer communicates with coiled pipes wound around the high temperature resistant filter bags; and a plurality of heat conduction fins are installed on the inner side of the water storage layer uniformly. The boiler economizer has the beneficial effects that the contact area between high temperature smoke and heat exchange media is increased, so that the heat exchange efficiency of equipment is improved; the energy-saving efficiency is high, and meanwhile the high-temperature resistant filter bags are arranged, and can be used for filtering the high temperature smoke in the boiler economizer; an ash clearing mechanism is arranged, so that massive accumulation of ash in the boiler economizer is reduced effectively; the heat exchange efficiency is ensured, and the energy-saving efficiency is further improved; and the service life of the equipment is further prolonged.

The invention discloses a turbo oxygen-increasing fuel economizer comprising a turbo device, wherein the output end of the turbo device is provided with a vacuum switch, the output end of the vacuum switch is provided with an ozone generator, and the ozone generator is provided with an interface connected with an engine; as the turbo oxygen-increasing fuel economizer adopts the structure, the ozone generator is started to run by the vacuum switch, air pressurized by the turbo device is delivered to the ozone generator so as to generate ozone which enters into an engine cylinder, the ozone is decomposed into oxygen at high temperature in the engine, which improves the content of oxygen in the cylinder to combust the fuel oil sufficiently, thereby greatly improving the power efficiency of the engine, effectively reducing the discharge of carbon monoxide and reducing the discharge of carbon monoxide by over 90%.

A method for operating a combined cycle power plant includes transferring exhaust gas from a gas turbine to a heat recovery steam generator. Further, the method includes preheating condensate before being fed as feedwater to the heat recovery steam generator. Moreover, the method includes reheating the feedwater in the heat recovery steam generator. The method also includes generating steam in the heat recovery steam generator for a steam turbine, wherein preheating the condensate includes monitoring a temperature of the condensate: if the temperature of the condensate is equal to or above a preset temperature, directing the condensate to a low-pressure economizer of the heat recovery steam generator; if the temperature of the condensate is lower than the preset temperature: directing a first fluid from an intermediate source of the low-pressure economizer to heat the condensate.

The invention discloses an air conditioner energy saving device. The air conditioner energy saving device comprises a water inlet pipe, a water storage tank, a water drainage pipe, a valve, suction cups, a water feed pipe, an evaporation disc, a filter net and a conical deposition pond. The water inlet pipe is connected with the water storage tank. The conical deposition pond is arranged at the lower end of the water storage tank. The lower end of the conical deposition pond is connected with the water drainage pipe. The water drainage pipe is provided with the valve. The water feed pipe is arranged at the top end of the water storage tank. The evaporation disc is arranged at the top end of the water feed pipe. The suction cups are arranged on the two sides of the top end of the water storage tank. The filter net is arranged at the connecting position of the water feed pipe and the water storage tank. The air conditioner energy saving device further comprises a stirring device. The stirring device is arranged in the conical deposition pond. The air conditioner energy saving device is simple in structure and convenient to use, few faults of an economizer exist, the temperature of a condenser is reduced, the acting of a refrigerating machine is reduced, and energy saving and environment friendliness are achieved.

The invention relates to a coal economizer, in particular to an improved structure of a coal economizer. According to the improved type coal economizer, a coal economizer body is divided into a coal economizer upper portion and a coal economizer lower portion, wherein the coal economizer upper portion, a denitration device and the coal economizer lower portion are sequentially arranged. The inputend of the coal economizer upper portion and the input end of the coal economizer lower portion are connected with a same water supply pipe. The output end of the coal economizer lower portion is connected with the input end of a circulating pipe. The output end of the circulating pipe is connected with the input end of the coal economizer lower portion. According to the improved type coal economizer, the coal economizer body is divided into the two parts, and heat exchange is conducted between waste heat of the denitration device and a heat distribution pipeline through the circulating pipe,so that energy is saved; the heat exchange rate is increased; and the improved structure is simple and high in practicability.