JP2000234503A - Steam heat reusing power plant - Google Patents

Abstract

PROBLEM TO BE SOLVED: To generate power by reusing heat of steam passing through a last steam turbine since the steam still has considerable heat. SOLUTION: This device has some vaporizing pipes passing through steam pipes 12A communicated with a last steam turbine 10A or through a steam drum, or steam pipes passing through vaporizing pipes 5A or through a vaporizing tank, and steam communicating with the steam pipes or the steam drum is passed through a condenser 9A to be hot water and sent to a boiler, and the vaporizing pipes 5A or the vaporizing tank communicates with vaporizing turbines 3A and 2A in this order, and the vaporizing turbine 2A is connected with a generator 1A. The vaporizing turbine 2A and a condenser 6A communicate with each other, and a gas is cooled by the condenser 6A to be liquid followed by passing through a flue duct by pumping according to the circumstances to communicate again with the steam pipes or with the vaporizing pipes in the steam tank. Liquid to be fed into the vaporizing pipes preferably has heat of vaporization smaller than water such as alcohols, for example.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for regenerating heat by passing steam through a last turbine in a thermal power plant and a nuclear power plant to vaporize a liquid and rotating a turbine to generate electric power.

[0002]

2. Description of the Related Art The steam that has passed through the last turbine has been returned to hot water by passing it through a water condenser.

[0003]

The heat of steam having a temperature of about 400 degrees is reused rather than cooled and returned to hot water to generate power.

[0004]

According to a first aspect of the present invention, a number of vaporizing pipes are passed through a steam pipe between the last steam turbine and the double water device, and the vaporizing pipe is communicated with the vaporizing turbine. One or more vaporization turbines are connected and connected to a generator, and the gas that has passed through the several vaporization turbines in order is returned to a liquid through a multi-liquid device, and the liquid is pumped and optionally pumped. It again communicates with the vaporization pipe in the steam pipe through the flue. The liquid to be put into the vaporization pipe is a liquid having a smaller heat of evaporation than water.

[0005] According to claim 2, the number of steam pipes through which the steam passed through the last steam turbine is passed is set, and the number of steam pipes is covered with a vaporizing pipe, and the steam pipe is covered with the vaporizing pipe. Is returned to the hot water in communication with the water condenser, the vaporization pipe is communicated with several vaporization turbines in order,
The vaporization turbine sends gas in order, connects the several vaporization turbines and a generator, returns the gas that has passed through the last vaporization turbine to a liquid through a multi-liquid unit, and pumps it, and in some cases, The vaporizing pipe is passed through the flue and then into communication with the vaporizing pipe.

According to a third aspect of the present invention, the steam that has passed through the last steam turbine is sent to a steam tank through a steam pipe, and the steam that has passed through the steam tank is sent to a water condenser to be cooled, returned to hot water, and sent to a heating chamber. Feeding, passing several vaporizing pipes through the steam tank, and connecting one of the vaporizing pipes to one of the steam tanks.
From the side, the vaporization pipe communicates with the vaporization turbine, the vaporization turbine is provided in series and sends gas in order,
The vaporizer and the generator connected in series are connected to each other, and the gas that has passed through the last vaporizer is cooled through a multi-liquid unit to be returned to a liquid, and may be pumped, if necessary, through a flue to the other side of the steam tank again. A vaporizing pipe is inserted from the inlet and communicates with the vaporizing pipe.

According to a fourth aspect of the present invention, a number of steam pipes communicating with the last steam turbine are passed through the vaporization tank, and the steam pipes exiting the vaporization tank are returned to hot water through a double water heater and then returned to the heating chamber. Sending, a vaporization pipe communicating with the vaporization tank is communicated with a vaporization turbine, gas is sequentially sent to the several vaporization turbines, the several vaporization turbines are connected in series and connected to a generator, and finally The gas passing through the vaporization turbine is cooled through a multi-fluid cooler and returned to liquid, and the liquid is again introduced from the other inlet of the vaporization tank by a pump if necessary through a flue.

[0008] In claim 5, the steam having passed through the last steam turbine is passed through a pipe, a steam tank, and a pipe in order, and returned to the heating chamber through a double water condenser. Evaporation pipes that are wrapped through or through several vapor pipes with vaporization pipes and vaporization tanks in order or vice versa, or with some vapor pipes wrapped with vaporization pipes and then several in the steam tank And vice versa,
The gas that has passed through each of the passages is sequentially passed through several vaporization turbines, the several series-connected vaporization turbines and a generator are connected, and the gas that has passed through the last vaporization turbine is subjected to a multi-liquid device. To return to liquid and communicate with the vaporization pipe via a flue if necessary via a pump.

[0009]

According to the first aspect of the present invention, the volume of the liquid in the vaporizing pipe is expanded by passing some of the vaporizing pipes through the vapor pipe, whereby the vaporizing turbine is rotated by the power and the generator is turned on. It can generate electricity by rotating. In some cases, the vaporization efficiency of the liquid is improved by passing the vaporization pipe through the flue. In claim 2, the liquid in the vaporization pipe is vaporized by passing several vapor pipes through the vaporization pipe, the volume expands, and the power is used to rotate the vaporization turbine and rotate the generator to generate power. You can do it. In some cases, the vaporization efficiency of the liquid is improved by passing the vaporization pipe through the flue.

According to a third aspect of the present invention, the liquid in the vaporization pipe is vaporized and expanded by the heat of the vapor by passing some vaporization pipes through the vapor tank, thereby rotating the vaporization turbine by the power. Is rotated to generate electricity. In some cases, the vaporization efficiency of the liquid is improved by passing the vaporization pipe through a flue. In claim 4, the liquid in the vaporization tank can be vaporized by passing several steam pipes through the vaporization tank, and the pressure can be increased. Therefore, the vaporized turbine is rotated by the increased pressure and the generator is rotated. It can generate electricity. In some cases, the vaporization efficiency of the liquid in the vaporization pipe is improved by passing the vaporization pipe through the flue.

According to the fifth aspect, manufacture is somewhat difficult, and the vaporization efficiency is about the same as that of the other means. It is possible to generate electric power by evaporating the liquid in the evaporating pipe or evaporating tank by steam heat, raising the pressure, rotating the evaporating turbine and rotating the generator. The gas that has passed through the vaporization turbine of paragraphs 0009, 0010, and 0011 can be cooled by a dual-liquid device to convert the gas back into liquid, and then the liquid is passed through a pump and passed through a flue to improve vaporization efficiency. Become.

[0012]

DESCRIPTION OF THE PREFERRED EMBODIMENTS In the order of claims, as in claim 1, several vaporizing pipes 5A are passed through a steam pipe 12A between a last steam turbine 10A and a water condenser 9A to vaporize the vaporizing pipe 5A. A number of the turbines 3A and 2A are sequentially communicated with each other, and the several vaporization turbines are connected in series to be connected to a generator.
A returns to liquid through A and the liquid is connected via a pump 7A to a vaporization pipe, optionally through a flue 14A, and then to a vaporization pipe 5A in the vapor pipe. A liquid supply device 17A is provided near the pump.

[0013] The last steam turbine 10
B is turned into several steam pipes 12B, the several steam pipes 12B are covered with a vaporization pipe 5B, and the steam pipe after being covered with the vaporization pipe is connected to a water condenser 9 so as to be hot water. And the vaporization pipes 5B and 4B are sequentially communicated with several vaporization turbines 3B and 2B. The vaporization turbine sequentially sends gas, and connects the several vaporization turbines in series with a generator. In connection with this, the gas passed through the last vaporization turbine is passed back to the liquid through a multi-condenser and through a pump and then optionally the vaporization pipe through the flue 14B to communicate with said vaporization pipe. A liquid supply device 17B is provided near the pump.

[0014] The last steam turbine 10
C is sent to a steam tank 12C through a steam pipe 14C, and the steam passed through the steam tank 12C is sent to a water condenser 9C to be cooled and returned to hot water and sent to a heating chamber. One of the vaporization pipes is taken out from one of the steam tanks through one of the vaporization pipes 5C, and the vaporization pipes are communicated with a vaporization turbine. The gas turbines 3C and 2C connected in series with the generator 1C are connected to each other, and the gas that has passed through the last gas turbine is mixed with
After cooling through C, the liquid is returned to a liquid, and a pump 7C may be used to re-enter the vaporizing pipe 5C from the other inlet of the vapor tank 12C again through the flue 14C and communicate with the vaporizing pipe. A liquid supply device 17C is provided near the pump.

The last steam turbine 10 according to a fourth aspect of the present invention.
A number of steam pipes 14D communicating with D are passed through the vaporization tank 12D, and a steam pipe 15D exiting the vaporization tank is provided.
Is returned to the hot water via the water condenser 9D and sent to the heating chamber, the vaporizing pipe 4D communicating with the vaporizing tank 12D is communicated with the vaporizing turbine, and the gas is sequentially transmitted to the several vaporizing turbines 3D and 2D. The several vaporization turbines are connected in series and connected to a generator 1D, and the gas that has passed through the last vaporization turbine is passed through a multi-liquid unit 6D to be cooled and returned to a liquid, and then smoke is sometimes passed through a pump 7D. The liquid is again introduced from the other inlet of the vaporization tank 12D through the passage 14D. A liquid supply device 17D is provided near the pump.

The steam passing through the last steam turbine is passed through a pipe, a steam tank, and a pipe in this order and returned to the heating chamber through a water condenser, and a number of vaporizing pipes are provided in each of the passages. Evaporation pipes that are passed in sequence or wrapped several steam pipes in vaporization pipes and vaporization tanks in order or vice versa, or wrapped several steam pipes in vaporization pipes and then made several in the steam tanks The pipe through which the steam leaving the last steam turbine flows is defined as the upstream steam pipe, the middle stream is defined as the middle steam pipe, the front of the double water turbine is defined as the downstream steam pipe, and the downstream steam pipe is defined as the downstream steam pipe. The vaporization pipe associated with the steam pipe is an upstream vaporization pipe, the vaporization pipe associated with the middle-stream steam pipe is an intermediate vaporization pipe, and the vaporization pipe related to the upstream steam pipe is a downstream vaporization pipe. And up, the middle vaporization pipe may also be a flash tank, there also be a middle-class steam pipe and the steam tank. From the last turbine, through one series of pipes or one series of tanks into or through some other series of pipes or through the other series of pipes or the other series of tanks Through several pipes of one series. Each of the upstream steam pipes and then the middle steam pipes or steam tanks and then the upstream vaporizer pipes in turn passes through each of the downstream vapor pipes and then the middle vapor pipes and then several downstream steam pipes and vice versa. In addition, or in each of the upstream steam pipes, then the middle-stream vaporization pipes or vaporization tanks, and then the downstream steam pipes, in order, the number of the downstream vaporization pipes, then the middle-stream steam pipes, and then the upstream vaporization pipes. Then, it communicates with the vaporization turbine, sequentially sends gas to the several vaporization turbines, connects the several vaporization turbines in series and connects with the generator, and connects the last vaporization turbine. The evolved gas is cooled by passing it through a multi-liquid unit and returned to a liquid, and is connected to the upstream vaporization pipe via a pump and possibly through a flue.
The liquid to be put into the vaporization pipe is a liquid having a smaller calorific value when vaporized than water. For example, there is alcohol. Install a pump near the pump.

[0017]

According to the first aspect of the present invention, by passing some vaporizing pipes through the vapor pipe, the volume in the vaporizing pipe is expanded by vaporizing the liquid in the vaporizing pipe, and the vaporizing turbine is rotated by the power. And the power can be generated by rotating the generator. Liquid can be reused many times by returning gas to liquid by cooling the gas that has passed through the last vaporization turbine with a multi-liquid unit. The vaporization efficiency of the liquid is improved by passing the vaporization pipe through the flue as needed by the pump.

By passing several vapor pipes through the vaporizing pipe as in claim 2, the liquid in the vaporizing pipe is vaporized, the volume expands, and the power rotates the vaporizing turbine and rotates the generator. By doing so, it is possible to generate electricity, and the gas that has passed through the last vaporization turbine is cooled by a multi-liquid unit, so that the gas can be returned to the liquid, so that the liquid can be used many times. By sending the liquid by the pump and passing the vaporization pipe through the flue, the vaporization efficiency of the liquid in the vaporization pipe is improved.

The liquid in the vaporizing pipe is vaporized by the heat of the vapor and expanded by passing some vaporizing pipes through the vapor tank as described in claim 3, and the power is used to rotate the vaporizing turbine. Power can be generated by rotating. The liquid can be reused many times by cooling the gas that has passed through the last vaporization turbine and returning it to liquid. It can be circulated by sending liquid by pump. The vaporization efficiency of the liquid is improved by passing the vaporization pipe through the flue.

The liquid in the vaporization tank can be vaporized by the heat of the vapor pipe by passing several vapor pipes through the vaporization tank as in claim 4, so that the pressure in the vaporization tank rises and rises. The vaporization turbine can be rotated by the atmospheric pressure, and the power can be generated by rotating the generator. The gas that has passed through the last vaporization turbine is cooled by a multi-liquid device, so that the gas can be returned to the liquid, so that the liquid can be used many times. The liquid can be circulated by the pump. By passing the vaporization pipe through the flue, the vaporization efficiency of the liquid in the vaporization pipe can be improved.

According to the fifth aspect, manufacture is somewhat difficult, and the vaporization efficiency is the same as that of the other means. It is possible to generate electric power by evaporating the liquid in the evaporating pipe or evaporating tank by steam heat, raising the pressure, rotating the evaporating turbine and rotating the generator. The gas that has passed through the last vaporization turbine can be reused many times by returning it to liquid by cooling it by passing it through a multi-liquid unit, and then circulating the liquid or gas by passing it through a pump. The vaporization efficiency of the liquid is improved by passing the vaporized pipe into the flue.

[Brief description of the drawings]

FIG. 1 is a view showing a vaporization pipe passing through a steam pipe.

FIG. 2 is a drawing in which a steam pipe passes through a vaporization pipe.

FIG. 3 is a drawing in which a vaporization pipe is passed through a steam tank.

FIG. 4 is a drawing in which a steam pipe is passed through a vaporization tank.

[Explanation of symbols]

Generators 1A, 1B, 1C, 1D, 8A 8B, 8C, 8D Vaporization turbines 2A, 3A, 2B, 3B, 2C 3C, 2D, 3D. Vaporization pipes 4A, 5A, 13A, 4B, 5B 13B, 4C, 5C, 13C, 4D, 13D Multi-liquid units 6A, 6B, 6C, 6D Pumps 7A, 7B, 7C, 7D. Double water device 9A, 9B, 9C, 9D Steam turbine 10A, 11A, 10B, 11B, 10
C 11C, 10D, 11D. Steam pipe 12A, 12B, 16C, 15C, 16
D 15D. Steam tank 12C Vaporization tank 12D Flue 14A, 14B, 14C, 14D. Liquid supply device 17A, 17B, 17C, 17D

Claims (5)

[Claims] The steam having passed through the last steam turbine (10A) is passed through a steam pipe (12A), and several vaporization pipes (5A) are passed through the steam pipe (12A). ) Is turned into hot water through a water condenser (9A) and sent to a heating chamber, and the vaporization pipe (5A) is taken out of the steam pipe and sequentially passed through vaporization turbines (3A) and (2A), and the vaporization turbines are connected in series. The rotating shaft is connected to a generator, and the gas that has passed through the vaporization turbines (3A) and (2A) returns to liquid through a multi-liquid unit (6A), and the liquid is sent by a pump (7A). The vaporizing pipe through which the gas passes through the pump passes through the flue (14A) and again through the steam pipe (12A), passing several vaporizing pipes into the steam pipe (12A). Steam heat return characterized by things Power generator. 2. Steam according to claim 1, characterized in that several steam hypes (12B) containing the steam passed through the last steam turbine (10B) are passed through the vaporization pipe (5B). Heat-reuse power generator. 3. A steam pipe (14C) through which steam passed through the last steam turbine is communicated with a steam tank (12C), and a number of vaporization pipes (5C) are passed through the steam tank (12C). The steam heat reuse power generation device according to claim 1, characterized in that: 4. A steam pipe (5D) through which steam passes through the last steam turbine (10D) is covered with a vaporization tank (12D) communicating with the vaporization pipe (4D). The steam heat reuse power generation device according to claim 1. 5. A pipe and a tank according to claim 1, wherein the pipe and the tank are arbitrarily combined.
3. The steam heat reuse power generation device according to claim 3.