UA88425C2 - Device for hydrogen cooling turbogenerator - Google Patents

Abstract

A device for hydrogen cooling turbogenerator comprises an inducer for providing hydrogen circulation, hydrogen purification & drying unit. The said unit comprises at least two absorbers, mains with armature binding, which serve for hydrogen inlet/outlet, controlled valves and a pressure regulators electrically connected with a control unit. The hydrogen purification unit is made as a thermal absorption compressor including at least two generators –absorber filled with material capable of hydrogen reverse absorbing, which is provided with a water cooler linked up with a water pipeline and is connected by an oil heater to a drain pipe of a bearing assembly and an oil tank. The thermal absorption compressor in input is connected to hydrogen outlet, in output – to the hydrogen inlet connected to an admixture relief line though an electromagnetic flow switch group connected to a hydrogen concentration sensor and to the control unit.

Description

( (51) IPC (2009)

Sat night 9/00

HO

MINISTRY OF EDUCATION

AND SCIENCES OF UKRAINE

STATE DEPARTMENT o; P. I. S

INTELLECTUAL RIGHTS TO THE PATENT FOR THE INVENTION

PROPERTIES

Y. nn (54) DEVICE FOR HYDROGEN COOLING OF THE TURBOGENERATOR 1 2 (21) a200814255 sorbers, pipelines with rebar that (22) 10.12.2008 supply and remove hydrogen, controlled valves and (24) 12.10.2009 pressure regulators, electrically connected to the (46) 12.10.2009, Byul.Mo 19, 2009 control block, which is distinguished by the fact that the block of eye- (72) VOROBYOVA IRYNA OLEKSANDRIVNA, HRU- hydrogen compression is made in the form of thermosorption-

BOY OLEKSANDR PETROVYCH, OSTAPCHUK HUMAN compressor, which includes at least two gene-

VIGA BORISIVNA, NIGHTINGALE VIKTOR VASILIORators-sorbers, filled with a substance capable of

VIH, FEDORENKO HRYHORY MYKHAYLOVYCH, to reversibly absorb hydrogen equipped with a

SHMALKO YURIY FEDOROVYCH connected to the water pipe with a water cooler and, (73) INSTITUTE OF MECHANICAL ENGINEERING PROBLEMS connected to the drain line of the bearing

IM. A.M. of the Podgornoy National Academy of the engine assembly and the oil tank, oil heating

SCIENCES OF UKRAINE, at the same time, the thermosorption compressor at the (56) КИ 2122271, 20.11.1998 entrance is connected to the water discharge main

ER 0080299, 01.06.1983, and at the exit - with a hydrogen supply line,

OA 30011, 11.02.2008 connected to the impurities discharge line, through the electric

Ky 2071162, 27.12.1996 romagnetic flow switch connected to

ZY 1170557, 30.07.1985 of the hydrogen concentration sensor and the control unit.

Ky 2102827, 20.01.1998 2. The device according to item 1, which differs in that as (57) 1. The device for hydrogen cooling is a substance that fills generators-sorbers, a discharge generator, containing an injection device, ristano intermetallic compounds , for example, for ensuring hydrogen circulation, a cleaning unit and IamivN,, ERetiN". o dehydration of hydrogen, which includes at least two add- "o

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AND

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The proposed device belongs to energy purging with hot air with a temperature of 573 in mechanical engineering, in particular to turbogenetic 67ZK, which is carried out by a gas blower through special construction, and can be used in a suction electric heater, as well as in the risk of cooling electric generators of electric protection due to high humidity of hydrogen.

A known device for hydrogen cooling The closest in terms of technical essence is - turbogenerator (Ivanov V.S., Serebryanskyi F.3. system of hydrogen cooling of the turbogenerator in "Gazomaslyanoe hozyazyto generatorov s hydrogen-" (pat. RF Mo2122271, НО2КО/10, НО2КО/26 , 1998). of hydrogen, a unit inside the generator, a fan, a hydrogen dryer, purification and drying of hydrogen, which includes, at least includes an adsorber for which used selymni, two adsorbers, mains leading to and from the boiler, a gas blower and an electric heater. conducts hydrogen and rebar.

The low efficiency of the known device is due to the fact that the device contains a fan located inside, fed by a high energy capacity, connected to the pulse of the generator, the pressure zone of which is connected by a hydrogen supply pipeline with a desiccant

chem, which consists of several adsorbers that maintain a hydrogen concentration of not less than 99.095 vol. hydrogen injection from oil, located in the pipeline to increase the efficiency of the hydrogen supply drive, hydrogen compressor of the hydrogen cooling system of the turbogenerator. of high pressure, located in the pipeline for the use of two or more sorber generators operating on hydrogen in the thermosorption compressor for hydrogen supply between the generator body and the dryer, the pressure regulator on the hydrogen supply line, and the hydrides of intermetallic compounds capable of closed valves and regulators pressure, electrically rotatable and selectively absorb hydrogen from the gas connected to the processor control unit. mishi, excludes energy costs for systematic

The low efficiency of the known device for regeneration of adsorbents and purging of the system is due to high energy consumption associated with that hydrogen, which increases the efficiency of operation with the drive of the pressure fan, the hydrogen device for hydrogen cooling of the turbogenerator-compressor, as well as with the regeneration of the adsorbent. ra.

The device also does not allow to implement a high performance of the heater for bringing heat to the degree of purity of hydrogen in the cooling system of the tour-generator-sorber of the thermosorption compressor, in the bogenerator, which reduces the reliability of its operation. in which recycled heat is used as a coolant

In addition, the system of cooling and purification of hydrogen oil used in the bearing of a known device is characterized by a high complexity, and the cooler for the refrigerant whose viscosity. fixed running water, allows you to realize fu-

The basis of the invention is the task of operating the thermosorption compressor in the hydrogen cooling device in the turbine mode, which increases the efficiency of the water generator by implementing the direct operation of the hydrogen cooling device, the turbo-transformation of heat into the potential energy of the generator. compressed gas with the help of hydridout. Installation in the main line of electromagnetic plowing materials that have the property of ter- flow switch, which brings hydrogen, and sensor-sorption reversibility, which allows to realize the concentration of hydrogen, connected with the control unit, the combination of two and more functions of the intake elements, allows you to continuously monitor the cleanliness of the system in a single metal hydride device, the outlet, which circulates in the cooling circuit, and by switching the energy consumption to the hydrogen drive to carry out the discharge of gas impurities, which gives the compressor, carrying out regenerative regeneration, the ability to continuously maintain cleanliness management of sorbers, high-quality cleaning of hydrogen that accumulates in the system at a given level for reliable functioning in the cooling system with reliable functioning of nodes and thereby increase the efficiency of the device elements, due to which the efficiency of the cooling device is achieved increasing the efficiency of the turbogenerator. cooling system of the turbogenerator. In Fig. the scheme of the device for the

The task is achieved by the daytime cooling of the turbogenerator. devices for hydrogen cooling turbogenerator The device contains an electric turbogenerator of the rotor, which contains a pumping device (hydrogen compressor with a hydrogen shell made in the body) ensuring the circulation of hydrogen, cooling, (not shown in the figure) connected to the unit for cleaning and drying hydrogen, which includes, at least two adsorbers, pipelines that remove 2 and supply with hydrogen, pipelines with fittings - connected to the inlet and outlet of the thermo-absorbing harness, that supply and remove hydrogen, compressor 4, respectively. controlled valves and pressure regulators, electrically Thermosorption compressor 4 includes, connected to the control unit, according to the invention, namely, two identical sorber generators or a hydrogen purification unit made in the form of a thermal multiple of two of their number (in Fig. no marked), sorption compressor, which includes, at least, two sorber generators filled with a reversible hydride-forming substance, filled with a wine substance, for example intermetallic compounds capable of reversibly absorbing hydrogen, equipped with IHam and RetTi types. The substances used as adsorbents are able to reversibly absorb hydrogen from the gas mixture when the bearing unit and the oil tank are oil-logged and release it when heated under a heater, while the thermosorption compressor is connected to the 99.995 rev. each of the sorber generators is equipped with a bottom connected to the impurity discharge line through heater 6 and cooler 7. Heater 6, made of an electromagnetic flow switch, connected in the form of a heat exchanger of the oil element to the hydrogen concentration sensor and the unit with the controlled coolant, which is connected to the In addition, as a substance that fills the generator-draining oil line 5 of the bearing re-sorber, intermetallic coupling assemblies of the turbogenerator 1 are used, and at the output - with oil, for example, I aMi5N;, RetTinN»x. by tank 13 with the help of main line 12. Cooling

The use of a thermosorption compressor vach 7 is made in the form of a heat exchange element for the purification of hydrogen from gaseous impurities, and on a water coolant, the inlet and outlet of which are connected as a generator of hydrogen circulation in the system in accordance with the water and drain cooling of the turbogenerator, which allows the use of three main lines on (Fig. not indicated). Generators-

Claims (1)

the sorbers of the thermosorption compressor 4 at the input cycle of desorption and hydrogen supply to the line C are thermally connected by mains leading away 2 and the sub-sorption compressor 4, a portion of the hydrogen from the hydrogen enters the C line, respectively. The thermosorption compost of impurities can be discharged into the discharge line 11, spring 4 contains an internal pipe and armature circuit through the electromagnetic switch 9. The control of the bundle is connected to the control unit 10, for the switch 9 is carried out by the control unit 10, the transfer of generator-sorbers to cycles of absorption according to the signal of sensor 8 of the concentration of hydrogen, foaming or hydrogen release. In line 3, which bridges the flow of hydrogen or for discharge through line 11, hydrogen is supplied, a sensor is installed in series or in the shell (system) of cooling of the turbogenerator 8, and an electromagnetic sensor of hydrogen concentration through line C of the hydrogen supply. Data-kach 9 connected to the control unit 10. The hydrogen concentration furnace 8 is adjusted to the limit switch 9 connected to the lawn discharge line 11, the hydrogen concentration at the lower level, and impurities. for example, 9995 vol. The device works in the following way. Pressure in the line Z of hydrogen supply at temperature The hydrogen circulating in the cooling system of the turbocharged oil of the bearing assembly in the reactor 1 enters through the main line 2, which can exceed the pressure in the interval from 60 to 80"С, it is removed through the thermosorption gas chamber in the cooling shell of the turbogenerator on the compressor 4, for example, to the entrance of one of two 0.03-0.05MPa, which provides the necessary coercion generators-sorbers (not marked in the Fig.), which, according to the circulation of hydrogen in the cooling system, alternately cyclically absorb and release hydrogen, bogenerator 1. that is, in each Thus, with the help of a metal hydride, one works on the absorption of hydrogen, the other - on the release of hydrogen. The choice of a hydride-out thermosorption compressor is carried out directly by using substances for sorber generators for the conversion of heat into potential energy in a compressed manner, based on the fact that the absorption of hydrogen, bypassing the intermediate stages of transformation of low pressure, should take place with sufficient energy absorption, which takes place in the known technology, the dynamics of sorption, and the decomposition of metal hydride - gas compression. ensure that pressures are reached at moderately low In order to check the performance of the proposed temperatures. Calculation studies were carried out on kinetlide compounds, for example, IakMmi»5, RetTi. Moreover, according to the technical and thermosorption characteristics, hydrogen absorption occurs with the formation of hydrometal hydrides, which were used in the generator of the intermetallic compound I ami5Nx, which are co-sorbers. As a result, it is possible to release the heat of sorption d", which leads to the implementation of an intensive desorption process, which is carried out by a water cooler 7. The hydrogen process at the temperature of the heater, which is fed by sorption, takes place at low pressure and temperature - the coolant - used oil, which provides 18-22 "Sat. At the same time, in another, a generator was generated from a bearing assembly, and sorption from the sorber was used to release hydrogen due to the fact that the flowing technical water became the coolant of the decomposition of the hydride I ami5Nx, which is accompanied by heat removal in the process of hydrogen sorption by absorption of the heat of desorption d, which is supplied Thallohydride. A comparative analysis was carried out with heater 6. The hydrogen desorption process takes place at high pressure and a temperature of 60-807C. With the proposed device, when working with a cooled source of heat, which is supplied, there is a heating of turbogenerators of high power. Dissolved spent oil of the bearing unit, the calculation showed that, compared to the purity of the hydro-turbo generator 1, which is supplied via line 5 and the water, which is maintained during the operation of powerful oil drains, which is diverted via line 12, to oil-turbo generators of the type TGV-200, TGV-300 TVV-1000 and tank 13. The pressure of hydrogen in line 2 corresponds to the temperature of 9695 rpm, the proposed device is zabezaturi in the water cooler 7, and the pressure of hydrogen in the cooling system of line 3 does not correspond to the temperature of the oil in the heater 6 thermo- is less than 99.095 rev., which guarantees a reduction in the losses of the sorption compressor 4 and exceeds the gas pressure for ventilation and friction, respectively, THV-200 on the 60th generator system by 0.03-0.05 MPa. Capacity 8 OkW; for THV-300 - 90-120 kW; for TVV-1000 - reversible hydrides of intermetallic compounds thermo- 340-450 kW. At the same time, the productivity of thermosorption-sorption compressor 4 is 20 nm" of hydrogen per day. Speed, the level of which is determined by the temperature potentiation of power losses due to friction and ventilation of the gas due to thermal effects, allows to carry out, due to better purification of hydrogen in the system, thermochemical compression (compression) of hydrogen, in the case of cooling, it will provide additional production of exothermic and endothermic processes during the annual operation of turboheation and desorption, the energy absorbers perform functions similar to those of the TGV-300 generator for 6,000 hours, no less than suction and injection cycles, which perform more than 0.75 million kWh. are driven by a mechanical compressor. Gaseous impurities. In addition, increasing the purity of hydrogen contained in the hydrogen coming from the shell by reducing its humidity will significantly increase the cooling coefficient of turbogenerator 1, are not absorbed by the readiness of the turbogenerator and will continue it with hydrides of intermetallic compounds contained in the resource, because only the stator winding is attached to sorber generators and, therefore, during the cycle, half of all turbogenerator failures occur. rbtions of hydrogen accumulate in the dead space. Thus, the execution of the device of the hydrogen thermosorption compressor 4. At the beginning of each- cooling of the turbogenerator according to the proposed