Hot-water storage type power generating unit

• US 4,479,352 A
• Filed: 07/21/1982
• Issued: 10/30/1984
• Est. Priority Date: 07/21/1981
• Status: Expired due to Fees

• Current Assignee: Mitsui Engineering & Shipbuilding Company Limited (Mitsui E&S Holdings Co., Ltd.)
• Original Assignee: Mitsui Engineering & Shipbuilding Company Limited (Mitsui E&S Holdings Co., Ltd.)
• Inventors: Yamaoka, Keijiro, Endo, Hajime
• Primary Examiner(s): Husar, Stephen F.
• Application Number:
  US06/400,320
• Time in Patent Office: 832 Days
• Field of Search: 60/659, 60/715, 60/682, 60/650, 60/670, 60/645, 60/643, 60/677, 60/679, 60/652, 55/41, 55/52
• US Class Current: 60/659
• CPC Class Codes: F01K 21/005 using mixtures of liquid and steam or evaporation of a liquid by expansion
• CPC Class Codes: F01K 3/00 Plants characterised by the use of steam or heat accumulators, or intermediate steam heaters, therein regenerating exhaust steam F01K19/00
• CPC Class Codes: F01K 3/004 Accumulation in the liquid branch of the circuit

Abstract

A hot-water storage type power generating unit includes a first tank coupled to a power generating system having a generator, a hot water producting unit for heating medium-temperature water from the first tank with exhaust heat from external equipment to produce high-temperature water, and a second tank for storing the high-temperature water from the hot water producing unit. The high-temperature water is supplied from the second tank to the power generating system for generating electric power to meet peak load demands. The power generating system includes a rotary separator turbine rotatable by the high-temperature water from the second tank for separating steam from the high-temperature water, and a steam turbine rotatable by the steam from the rotary separator turbine, the generator being operatively coupled with the steam turbine for being rotated thereby.

Claims

1. A hot water storage type power generating assembly comprising:

a power generating subassembly, said power generating subassembly further comprising a rotary separator turbine for separating high-temperature water into medium-temperature water and steam, a steam turbine driven by said steam from said rotary separator turbine, and a generator operatively coupled with said steam turbine for generating electric power;

a first tank selectively interconnected with said rotary separator turbine such as to store said medium-temperature water produced by said rotary separator turbine, said first tank further being selectively interconnected with said steam turbine such as to combine the steam output from said steam turbine with said medium-temperature water;

a hot water producing device interconnected with said first tank, said hot water producing device converting said medium-temperature water into high-temperature water; and

a second tank selectively interconnected with said hot water producing device, said second tank storing said high-temperature water supplied from said hot water producing device, said second tank further being selectively interconnected with said rotary separator turbine such as to selectively supply said rotary separator turbine with said high-temperature water.

2. The hot water storage type power generating assembly of claim 1 wherein said first and second tanks comprise:

a bithermal tank;

an elongated cavity formed in said bithermal tank; and

a partition movably disposed in said elongated cavity such as to separate said elongated cavity into said first and second tanks, said partition being longitudinally movable in said elongated cavity in response to the variation in the amount of medium-temperature and high-temperature water stored, respectively, in said first and second tanks.

3. The hot water storage type power generating assembly of claim 1 wherein said hot water producing device comprises a heat exchanger.

4. The hot water storage type power generating assembly of claim 1 wherein said hot water producing device comprises a mixer for mixing said medium-temperature water with a supply of high-pressure steam from a high-pressure turbine.

5. The hot water storage type power generating assembly of claim 1 wherein said power generating subassembly further comprises a water turbine interposed said rotary separator turbine and said first tank, said water turbine being rotatably driven by said medium-temperature water, said power generating subassembly being operatively coupled with said water turbine such that said power generating subassembly is rotatably driven by both said water turbine and said steam turbine to generate electric power.

6. The hot water storage type power generating assembly of claim 1 further comprising a condenser interposed said steam turbine and said first tank, said condenser condensing said steam output from said steam turbine to output water, said output water being supplied to said first tank for mixing with said medium-temperature water from said rotary separator turbine.

7. The hot water storage type power generating assembly of claim 1 further comprising:

first pump means interposed said first tank and said rotary separator turbine, said first pump means delivering said medium-temperature water to said first tank; and

second pump means interposed said first tank and said steam turbine, said second pump means delivering said steam output from said steam turbine to said first tank.

8. A hot water storage type power generating assembly comprising:

a rotary separator turbine for separating high-temperature water into medium-temperature water and steam;

a steam turbine rotatably driven by said steam supplied by said rotary separator turbine, said steam turbine exhausting an output steam;

a water turbine rotatably driven by said medium-temperature water supplied by said rotary separator turbine;

a generator operatively coupled with said steam turbine and said water turbine such that said generator is rotatably driven by said steam turbine and said water turbine to generate electric power;

a condenser interconnected with said steam turbine, said condenser condensing said output steam of said steam turbine to output water;

a first tank selectively interconnected with said water turbine and said condenser such as to combine and store said medium-temperature water and said output water;

a hot water producing device interconnected with said first tank, said hot water producing device converting said medium-temperature water into high-temperature water; and

a second tank selectively interconnected with said hot water producing device, said second tank storing said high-temperature water supplied from said hot water producing device, said second tank further being selectively interconnected with said rotary separator turbine such as to selectively supply said rotary separator turbine with said high-temperature water.

9. The hot water storage type power generating assembly of claim 8 wherein said first and second tanks comprise:

a bithermal tank;

an elongated cavity formed in said bithermal tank; and

a partition movably disposed in said elongated cavity such as to separate said elongated cavity into said first and second tanks, said partition being longitudinally movable in said elongated cavity in response to the variation in the amount of medium-temperature and high-temperature water stored, respectively, in said first and second tanks.

10. The hot water storage type power generating assembly of claim 8 wherein said hot water producing device comprises a heat exchanger.

11. The hot water storage type power generating assembly of claim 8 wherein said hot water producing device comprises a mixer for mixing said medium-temperature water with a supply of high-pressure steam from a high-pressure turbine.

12. The hot water storage type power generating assembly of claim 8 further comprising:

first pump means interposed said first tank and said water turbine, said first pump means delivering said medium-temperature water to said first tank after said medium temperature water has passed through said water turbine; and

said pump means interposed said first tank and said steam turbine, said second pump means delivering said steam output from said steam turbine to said first tank.

13. The hot water storage type power generating assembly of claim 8 wherein said rotary separator turbine and said water turbine together further comprise:

a housing;

a chamber formed in said housing;

a separator turbine wheel rotatably disposed in said chamber; and

a water turbine wheel rotatably disposed in said chamber adjacent said separator turbine wheel.