Offline electroprocedures

 

(57) Abstract:

The invention relates to the field of power generation steam power plants. Offline electroprocedures consists of a steam generator, turbine, condenser and pump. The steam generator has been designed for universal-combined in a single block design. Turbine made of condensation (hollow) and reactive parts, and the condensation and reactive parts have their own independent rotation about a common axis torque. The steam after the turbine enters the condenser through the diffusers and the extender. The essence of the invention lies in the fact that in this construction is used thermodynamic Carnot cycle, combined with the option Rankine. The invention improves the reliability of the device in operation, to ensure rapid repair and replacement of equipment. 4 Il.

The invention relates to the field of power generation steam power plants, where as the head of the link is used by a steam turbine. Can be used in stationary conditions.

Known technical solutions containing steam turbine - CHP, CHP.

The disadvantages of the known is the range of basic facilities and sites, interconnected extensive highway, which leads to the inevitable heat losses and reduce overall efficiency. These circumstances do not allow the use of a steam turbine as a universal, stationary source for electricity generation.

Known offline electroprocedures, consisting of a steam generator, turbine, condenser and pump (see and. C. SU 1377419 A1, F 01 K 11/04, 29.02.88). The disadvantages of this device are cumbersome equipment, a large mass of spent metal, low efficiency.

The invention aims at eliminating the above drawbacks and its use can be obtained the following technical result: the supply of electricity to consumers in the absence of water and in places of short-term based.

This is due to the fact that in the proposed device uses its own supply of water and in a closed thermal cycle used turbine unusual design, combined with steam in a single block design, which allows to reduce the weight and cost of metal by combining and contraction of the walls of the various units, to exclude the link connecting line, nationaltheateret, as well as the possibility of a steam generator to use any kind of fuel make the design not only universal, but also profitable from the economic point of view. An important factor is also the quietness of elektroprostitute and advantage in power compared with internal combustion engines, which in addition to capacity limits contains more moving parts.

In Fig. 1 shows a turbine, a General view in perspective, with 1 being the rotor portion of the turbine; 2 - stator part of the turbine; 3 - air vanes; 4 - installation location of the power blades; 5 - bearing bearing stator of the turbine; 6 - pastoralist stator of the turbine; 7 - nozzle apparatus and the rotary blades; 8 - diffusers; 9 - anti-surge valve; 10 - output slots of the exhaust steam.

In Fig. 2 shows a steam generator, a General view in section, where 11 - extender; 12 - ejector; 13 - condenser; 14 - steam producer; 15 - deaerator; 16 - surge capacity; 17 - nutritional and oil pumps; 18 - exhaust vanes extender; 19 - collector; 20 - snail capacity extender; 21 - drive compressor; 22 - steam receiver.

In Fig. 3 shows the device power parts, a General view in section, where the 23 - water capacity; 24 - Luggage is 28 - electromagnetic clutch; 29 - hydraulic drive; 30 - generator rotor; 31 - generator stator; a 32 - braking device; 33 - valve ventilation; 34 - starting motor.

In Fig. 4 shows electroprocedures, General view.

The principle of the device elektroprostitute the following.

The stator part (condensation) of the turbine (conditionally) 2, is mounted a support 5 of the slotted bearing water tank 23, which is the Foundation of the device. On the groove of the stator of the turbine is installed rotor (reactive) part of the (conditionally) turbine 1. Thus, both parts of the turbines have their own independent rotation relative to the base. Between the shells of both parts of the turbine produces power space 4, in which are mounted rotor blades and the guide apparatus. Installation is carried out after the attachment of the two parts to each other, pre-milled grooves in the case of both parts of the turbines.

Steam in the power section of the turbine comes from the stationary manifold 19 through the nozzle device 7. Nozzle apparatus with rotary vanes, arranged in the bottom of the stator of the turbine, is a preliminary stage and serves to smooth IZMENENIY to start the turbine, where he plays the role of a throttle device and a pressure regulator. The exhaust steam from the power section of the turbine exits through the slots 10 in pastoralist stator of the turbine 6, and then through the diffuser 8 in the expander 11. The upper part of the stator of the turbine centers extender, and the upper part of the rotary part of the turbine centers electrosoft 28, which is rigidly attached to the air manifold 26, which is in turn attached to the expander. The extender prevents the leakage of steam from the hollow into the atmosphere. When you run a portion of the steam flows into the power section of the turbine, and the other part, roselius anti-surge valve, enters pastoralist where it mixes with the exhaust steam and is directed through a diffuser in the extender. This prevents loss of the closed thermal cycle. In addition, pastoralist stator of the turbine reduces the overall weight of the turbine and located in her ribs reduce the effect of centrifugal forces.

Ribs (not shown) are mounted at a small angle (in the direction of rotation), indicating the direction of the pair of output from the grooves to the diffusers. Further, pairs falls under the influence of exhaust blades of the expander 18. It should be noted, Nezavisimoye apparatus 7 in the power part 4, then over the weekend the grooves 10 in the diffuser 8 and falls under the influence of exhaust blades of the expander 18. Exhaust vanes extender are located at an acute angle and close enough to the diffusers. Therefore, the faster rotating stator part of the turbine, the lower the pressure in its hollow and more pressure for exhaust vane expander. Consequently, it would be better if you will rotate the stator part and the rotor part is fixed, but in this case can be formed of the leakage of steam from the header, because it is stationary, so in the body of the expander is provided snail bulge 20. After the exhaust blades extender pairs gets extra speed, but because of exit for him there, and the extra pressure. Next he goes into the high-pressure chamber 24, the volume of which is negligible compared with the volume of extender. In the high pressure chamber has a volumetric hollow motor 21, the inner diameter of which is placed on the neck of the cylinder of the expander. This motor performs the role of a drive of the compressor. Thus, in the initial stage of compression is used the principle of Carnot, further compression can be carried out according to the variant, predmosti steam enters the intermediate pressure chamber 25, which can be used for regeneration, production needs, etc., With the high-pressure chamber partially condensed steam enters the condenser 13 and finally cooled water from the water tank 23.

Steam is produced in proprietorial 14. Further pairs routed across multiple nodes of the steam turbine cycle, depending on the degree of reliability, power and protection of the steam generator. For steam cleaning, you can partially use the camera intermediate pressure, and steam superheating - chamber tank 15, which is combined with a chimney, on the one hand, and serves as a protection against overheating of the drive of the compressor, on the other hand, and overheating can occur due to exhaust gases. Superheated steam enters the steam receiver 22. Steam receiver smooths out the ripple and steam enters the collector. The ejector 12, the circulation and the oil pump 17 is necessary aggregates of steam turbine cycle. A surge tank 16 to provide protection of proprietorial, turbine and external cyclones upon interruption in power. The ventilation valve 33 maintains a moderate fuel combustion and provides fresh air.

Position 3, 26, 27, 28, 29, 32, 34 used to run round mnie rings not shown). Load more profitable to shoot with a stationary part of the turbine rotor, since in this case will rotate the stator portion of the turbine together with diffusers and exhaust after blades of the steam pressure in the vessel housing will be more and the compression will be more intense. But for a quick and painless run the rotation of each turbine shells, i.e., its rotor and stator parts, between which are the rotor blades and the guide device.

Electroprocedures works as follows.

Electroprocedures can work on any type of fuel (gas, wood, coal, kerosene, and so on ), it is enough to prepare him for this, to install or remove the injectors, nozzles, to prepare the slag chamber and loading conveyor belt. The operator can be located in the center and directly observe the process in a viewing window through which the visible surge capacity.

Having the desired pressure in the steam receiver, run the turbine. To run any source of electricity or diesel generator, which must be completed by the compressor. The compressor pumps the compressed air in the air receiver.

After filling vozduwnii part of the turbine in its bearing part and apply power to the starting motor. Simultaneously withdrawn from engagement with electromotor and open the valve of the compressed air from the air manifold on the air vanes of the rotor of the turbine. The rotation of each turbine parts must be in different directions. It should be noted that the operating speed of the turbine are within 6-7 thousand per minute. Therefore, it is necessary rotation of both parts, because in this case their turnover are summarized. As the lever hydraulic gradually let out steam from the steam receiver through a manifold in the power section of the turbine. If the pressure is excessive, part of the steam is choked in pastoralist stator of the turbine anti-surge valve. The compressed air acts on the air vanes and after that enters the atmosphere through the chamber outlet of the compressed air. The camera outputs the compressed air must be installed bypass valve, which protects the rotor portion of the turbine, especially when it is stopped. After start (when the turbine attains sufficient speed) rotor portion of the turbine is braked by elektromotory and fixed. Thus, it will only rotate one stator part of the turbine. Adjustment and setting to require a mode selection washers in the steam-generating part and solomatine in equalization tanks will provide a quick starting of the turbine and will significantly increase the life of the device. The setting is done only once to the case of a breakdown or replacement of any unit. Modular design makes it easy to disassemble and repair electroprocedures.

Sources of information

1. Baskakov A. P. Heat. M : Energoizdat, 1982

2. Buznikov E. F. Combined production of steam and hot water. M : Energoizdat, 1981

Offline electroprocedures, consisting of a steam generator, turbine, condenser and pump, characterized in that the steam generator has been designed for universal-combined in a single block design, turbine made of condensation (hollow) and reactive parts, and the condensation and reactive parts have their own independent rotation about a common axis of torque, and the steam after the turbine enters the condenser through the diffusers and the extender.

 

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FIELD: power engineering; steam turbines.

SUBSTANCE: invention can be used at mounting of heavy-weight condensers of steam turbines connected with several exhaust ports of steam turbine low-pressure cylinders. Invention can be used also at servicing and subsequent adjusting of steam turbines especially, high-power ones. Invention improves reliability and increases economy of turbine in operation owing to decreasing excess loads on exhaust parts of low-pressure cylinders and support foundation plates of exhaust parts from side of condenser, decreasing friction forces along support surfaces of low-pressure cylinders, deformation of supports, formation of cracks and increasing vibration stability of turboset at different loads and modes of operation. According to proposed method of mounting of steam turbine condenser connected with several exhaust ports of low-pressure cylinders including assembling, preliminary truing, welding of connecting branch pipes and fixing in space by means of calibrated setting strips under springs. After operation of turboset under load, position of condenser in space is corrected to reduce load on support belt of low-pressure cylinders by disconnecting exhaust branch pipes of turbine and condenser, filling condenser with water of designed mass, placing inserts between upper and lower branch pipes of designed mass, placing inserts between upper and lower branch pipes and subsequent connection of branch pipes of turbine and condenser. Disconnected condenser is filled with water whose mass corresponds to designed load ΔG taken from low-pressure cylinder which is determined by value of compression Δh of spring unit under each support of condenser, basing on its rigidity characteristic K. ΔG removed from low-pressure cylinder is =ΣΔh x K. Estimation of loads on support belt of low-pressure cylinders in process of complex tests is carried out by displacement pickups checking compression of spring under all supports of condenser, and grade pickups on built-in supports of low-pressure cylinders operating at continuous monitoring by means of processor-based devices.

EFFECT: improved reliability end economy of turbine.

2 cl, 2 dwg

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