RU81785U1 - STEAM GENERATOR STATION FOR DISPOSAL OF WASTE OIL - Google Patents

Abstract

The steam generating station for used oil utilization (PSU) is mainly for large inaccessible industrial enterprises of the North with a large fleet of machines and mechanisms. CCP consists of a receiving tank for used oil, a steam boiler and a burner. The tank is made semi-underground at a separate receiving area, equipped with a heater and a mixing pump. The boiler has a combustion device for burning solid fuel. The burner device is mounted in the side inspection window of the steam boiler, connected to a blower fan, and equipped with a pressure reducing valve. The tank and the burner are connected in a cycle by pressure and drain main pipelines. The technical result consists in expanding the technological capabilities of CCPs, lowering the capital and operating costs for the regeneration of the energy of used oil by efficiently burning the used oil in steam boilers simultaneously with solid fuel.

Description

A steam generator station for the utilization of waste oil refers to heat power equipment for the simultaneous burning of oil products and solid fuels, producing hot steam and further generating thermal energy or heat and electricity. It can be used at thermal power plants, mini-thermal power plants, thermal power plants, boiler plants for heat supply, mainly operating in remote inaccessible areas of the North as part of large industrial enterprises with a large fleet of machines and mechanisms.

Known technical means for the disposal of waste oil, for example, installations for thermal cracking, distillation and conversion of oil into furnace or diesel fuel. One option for disposing of used oil is incineration for energy recovery.

An analogue of the utility model is an autonomous device for generating thermal energy by burning used oil. For example, the Clean Burn company water boiler [http://www.cleanburn.ru/products] is known for burning used oils and producing hot water in service centers, industrial facilities, car washes, and passenger car and truck service centers.

Known multi-oil oven, also developed by Clean Burn [Patent US5531212. Multi oil furnace. 1996] for the autonomous combustion of used oils and for the production of thermal energy, for example, for heating air.

Other similar small-sized waste oil generators are known, for example, Teplon (Russia), Calorex (England), Dantherm (Denmark), DanVex (Finland), EnergyLogic (USA), Kroll (Germany), R&K (Italy-USA), Remko (Germany).

A disadvantage of the known similar devices is the limitation of technological capabilities due to the use of small-sized autonomous heat generators for local heating of small volumes of water or air. The disadvantage is the need for reception, collection, transportation, storage, special preparation of used oil for combustion, including separation or purification using fine filters, as well as the need for disposal of slag after burning used oil, which leads to increased capital and operating costs.

The prototype of the utility model is a method of burning liquid fuel and a device for its implementation [Patent DE 19816774. Verfahren zur Verbrennung flüssiger Brennstoffe und Anlage zur Durchführung. 1999], intended for the burning of liquid fuel wastes and for the production of thermal or electric energy. A device for burning liquid waste fuel includes a boiler equipped with an evaporator-tank and a gas burner. The evaporator tank is installed inside the boiler, equipped with a cleaning device, a level gauge, connected to the burner through a filter with a discharge pipe. Additionally, the burner is connected to a source of natural or liquefied gas. Waste oil is fed to the evaporator tank by a pump from a transport tank. Gas is supplied to the burner and burned. The used oil is heated in the evaporator tank above the boiling point, passes into a vapor state, passes through the filter and, when the required pressure is reached, enters the burner for combustion. This stops the flow and combustion of gas. Burn used oil. For trouble-free operation of the burner, the pressure pipe is connected to the reserve capacity of the used oil.

The disadvantage of the prototype is the limitation of technological capabilities due, firstly, to the location of the evaporator inside the boiler, which leads to the functional complexity of regulating the temperature and pressure of self-heating waste oil for a continuous and uniform supply through the pipeline to the burner; secondly, the impossibility of overflowing of used oil from the transport tank into the evaporation tank at a negative air temperature below - 17 ° C. The disadvantage is the increase in capital and operating costs for the energy recovery of used oil due to the need for special preparation and disposal of slag.

The objective of the utility model is to expand technological capabilities, reduce capital and operating costs for the regeneration of waste oil energy.

The problem is solved in that in the steam generating station for the disposal of used oil, including a steam boiler, a tank for used oil connected by a pipeline to the burner device, an internal resource heater for used oil, according to a utility model, the steam boiler is equipped with a solid fuel combustion device and a burner combustion device waste oil. The reservoir for waste oil is located remotely at the receiving site, is made semi-underground and equipped with a loading

filtration funnel, circulation pump, water heat exchanger, discharge and drain main pipelines. The main pipelines are connected to the burner device, which is connected by an air duct to the blower fan of the steam boiler and is equipped with a pressure reducing valve connected to the drain main pipe. The water heat exchanger is connected in a cycle with the boiler of the steam generator station.

The housing of the burner device is installed in the side inspection window of the steam boiler with the possibility of simultaneous combustion of used oil in the burner device and solid fuel in the combustion device.

The receiving tank is located on the receiving platform, equipped with the possibility of draining the used oil from the transportation tanks into the receiving tank through a filter funnel. The funnel is equipped with a drain hose clamp.

The technical result of the utility model is due to the following features:

firstly, by combining in a steam boiler a combustion device for burning solid fuel and a burner device for simultaneous incidental burning of used oil without special preliminary treatment of oil and separate disposal of waste from its burning;

secondly, by equipping the steam generator station with a semi-underground receiving tank and receiving platform for the operational collection and safe short-term storage of used oil;

thirdly, by equipping the receiving tank with a heater and a circulation pump that maintains the used oil in a heated state, suitable for transportation through the main pipeline and mixing with the air a blower fan for local operational combustion in the territory where the used oil is formed;

fourthly, the formation of a cycle from the receiving tank, main pipelines, burner and pressure reducing valve,

which, in the end, helps to expand the technological capabilities of the steam generator station, reduce capital and operating costs for the regeneration of energy of used oil.

A schematic diagram of a steam generator station for the disposal of used oil is presented. The station is equipped in the territory of the thermal power station, thermal power station or boiler room.

The waste oil recovery steam generator station consists of a semi-underground waste oil receiving tank 1, a steam boiler 2, a burner 3. The reservoir 1 and the burner 3 are connected in a cycle by pressure main pipelines 4 and drain 5.

Reservoir 1 is located at the receiving site outside the building of the TPP, TPP or boiler room (buildings are not indicated on the diagram). The tank 1 is made of a rectangular or cylindrical monolithic or precast of reinforced concrete, metal or other inert non-combustible hydrophobic oil-impervious material. A funnel 6 with a lid and a filter (not shown in the diagram) is installed in the upper part of the tank 1. In the lower part of the tank 1, a heater 7 is installed, for example, a heating element or a water tube heat exchanger connected to a hot water supply system of a thermal power station, thermal power plant or boiler room, for example, a boiler 8. The tank 1 is equipped with a circulation pump 9, temperature and oil level sensors. The receiving platform is made in the form of concrete or asphalt pavement and is equipped with drains into the receiving tank 1.

The main pressure pipelines 4 and drain 5 are equipped with shut-off and control valves. Parts of the main pipelines of pressure 4 and drain 5 from tank 1 to the building of a thermal power plant, thermal power plant or boiler plant can be located in underground or surface collectors or racks.

The burner device 3 is mounted in the side inspection window of the steam boiler 2, connected to the blower fan 10 of the steam boiler. The burner device 3 is equipped with a pressure reducing valve (not shown in the diagram) connected to the drain pipe 5. The burner device 3 uses one of the known burners, for example, a gas-oil burner or a burner for oilless burning.

Steam boiler 1 may be part of a closed heat supply system or may be associated with a turbine unit (not shown in the diagram).

The steam generating station for the disposal of waste oil may include several receiving tanks 1, interconnected or operating independently.

Steam generating station for the disposal of waste oil is as follows. The used oil is poured into a receiving tank 1 through a funnel 6 from a utility vehicle. The mechanical impurities remaining on the filter of the funnel 6 are removed, then manually loaded into the furnace of the boiler 2 for combustion. The used oil in the tank is heated with a heater 7, the coolant of which is the hot water of the boiler 8. It is mixed with a circulation pump 9. In a heated state it is fed into

burner device 3 through the pressure main pipeline 4. The parameters of the burner 3 and the blower fan 10 are adjusted. The used oil is sprayed into the furnace of the steam boiler in the form of an aerosol 2. The pressure of the used oil supply to the burner 3 is regulated using a pressure reducing valve. Excess spent oil is sent to a receiving tank 1 through a drain main pipe 5.

Simultaneously with the used oil, solid fuel, for example coal, is supplied to the furnace of the steam boiler 2. Coal and waste oil are burned. Get hot steam. Steam is sent to receive heat or heat and electricity. Slag and ash are removed to the ash dump in a known manner.

The level and temperature of the used oil are monitored in the receiving tank 1. The station is controlled automatically or manually.

Example. A steam generator station for used oil utilization (PSU) was built at the CHPP of the Olympiadinsky GOK. CCP consists of one receiving tank with a volume of 25 m ³ , three steam boilers KE 25-39-400 and three gas-oil burners RGMG-2P. A semi-underground rectangular welded metal receiving tank with a reinforced concrete coating, with a lid in the cover in the form of a hatch, is located at the receiving concrete site outside the TPP building. A water coil heater is installed in the tank, connected in a cycle with a boiler for hot water supply of a thermal power plant. The temperature of the hot water in the heater tube is 70 ° C. An AN 1V 6 / 5-2 / 5k-3-OMZ circulation pump is installed on the tank cover. Two interconnected funnels are installed in the tank cover, one of which is reserve to prevent overflow of used oil. Funnels are equipped with covers, grilles with a mesh size of 4 mm and a hose clamp for draining used oil.

Steam boilers are made of energy, with layered furnaces for burning coal. In the lateral viewing window of each of the boilers, a gas-oil burner is installed, connected to the blower fan of the corresponding boiler. The main pipelines - pressure section of 50 mm and drain section of 40 mm - are laid in underground collectors.

In the production workshops of the GOK, the used oil is poured - engine, industrial, transmission, compressor and hydraulic - into metal containers of temporary storage with a volume of 5-10 m ³ , then they are collected by a vacuum sewage tanker tanker and delivered to PSU. From a tank truck

The waste oil is drained through a hose to a receiving tank, sent to a burner and burned. The capacity of CCPs for the disposal of used oil is up to 200 l / h, which allows to obtain at least 5% of hot steam from the total amount generated by steam boilers. The process is automated and controlled remotely.

CCP operates in accordance with the technical requirements and regulatory documents for the operation of steam boilers, boiler fuel, and used oil.

Claims (3)

1. A steam generator station for the utilization of waste oil, including a steam boiler, a reservoir for waste oil, connected by a pipeline to the burner device, an in-line oil heater, a filter, characterized in that the steam boiler is equipped with a combustion device for burning solid fuel and a burner device for burning waste oil, while the reservoir for waste oil is located at the receiving site, made semi-underground and equipped with a loading filter funnel, a heat exchanger ohm, a circulation pump, a discharge and drain main pipelines connected to a burner device, which is connected by an air duct to the blower fan of the steam boiler and is equipped with a pressure reducing valve connected to the drain pipe, and the water heat exchanger is connected in a cycle to the boiler of the steam generator station. 2. The steam generator station for the disposal of waste oil according to claim 1, characterized in that the housing of the burner device is installed in the side inspection window of the steam boiler with the possibility of simultaneous combustion of the used oil in the burner device and solid fuel in the furnace device. 3. The steam generating station for the disposal of waste oil according to claim 1, characterized in that the receiving tank is located on the receiving platform, equipped with the ability to drain the used oil from the transportation tank into the receiving tank through a filter funnel equipped with a drain hose retainer.