CN117287994A - Expansion self-condensation type steam-driven system - Google Patents

Expansion self-condensation type steam-driven system Download PDF

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Publication number
CN117287994A
CN117287994A CN202311118134.9A CN202311118134A CN117287994A CN 117287994 A CN117287994 A CN 117287994A CN 202311118134 A CN202311118134 A CN 202311118134A CN 117287994 A CN117287994 A CN 117287994A
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China
Prior art keywords
steam
condensing
expansion
liquid
inlet
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CN202311118134.9A
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Chinese (zh)
Inventor
李文辉
李泽智
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Individual
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Individual
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Priority to CN202311118134.9A priority Critical patent/CN117287994A/en
Publication of CN117287994A publication Critical patent/CN117287994A/en
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
    • F01K11/00—Plants characterised by the engines being structurally combined with boilers or condensers
    • F01K11/02—Plants characterised by the engines being structurally combined with boilers or condensers the engines being turbines
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
    • F01K25/00—Plants or engines characterised by use of special working fluids, not otherwise provided for; Plants operating in closed cycles and not otherwise provided for
    • F01K25/06—Plants or engines characterised by use of special working fluids, not otherwise provided for; Plants operating in closed cycles and not otherwise provided for using mixtures of different fluids
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
    • F01K25/00—Plants or engines characterised by use of special working fluids, not otherwise provided for; Plants operating in closed cycles and not otherwise provided for
    • F01K25/08—Plants or engines characterised by use of special working fluids, not otherwise provided for; Plants operating in closed cycles and not otherwise provided for using special vapours
    • F01K25/10—Plants or engines characterised by use of special working fluids, not otherwise provided for; Plants operating in closed cycles and not otherwise provided for using special vapours the vapours being cold, e.g. ammonia, carbon dioxide, ether
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28B—STEAM OR VAPOUR CONDENSERS
    • F28B1/00—Condensers in which the steam or vapour is separate from the cooling medium by walls, e.g. surface condenser
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28B—STEAM OR VAPOUR CONDENSERS
    • F28B9/00—Auxiliary systems, arrangements, or devices

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Engine Equipment That Uses Special Cycles (AREA)

Abstract

The invention discloses an expansion self-condensation type steam-driven system, which comprises a steam-driven working device for changing high-temperature high-pressure steam into low-temperature low-pressure steam and outputting kinetic energy, a condensing device for heat exchange, an expansion device for expanding liquid or steam liquid into steam state, and a vaporization device for converting liquid into steam state from liquid state by increasing temperature.

Description

Expansion self-condensation type steam-driven system
Technical Field
The invention relates to the technical field of a pneumatic system structure, in particular to an expansion self-condensation type pneumatic system.
Background
The steam turbine is also called a steam turbine engine, and is a rotary steam power device, high-temperature and high-pressure steam passes through a fixed nozzle to become accelerated steam flow and then is sprayed onto blades, so that a rotor provided with a blade row rotates and simultaneously performs external work. Steam turbines are the main equipment of modern thermal power plants and are also used in metallurgical industry, chemical industry and ship power plants.
In a thermal power generation system, high-temperature and high-pressure steam pushes a steam turbine to apply work to form low-pressure steam tail steam, and the tail steam of the steam turbine is directly discharged in the traditional method, however, the heat in the tail steam accounts for 35 to 40 percent of the total energy, and the direct discharge can cause a great deal of energy loss and influence the surrounding living environment; there are also water coolers that cool low pressure steam to condensate, but with a relatively large water consumption.
In the prior art, the air-cooled condenser is adopted for cooling so as to save water consumption, the existing air-cooled condenser utilizes the surrounding environment for cooling, the structure of the air-cooled condenser is generally a fin tube bundle which is arranged in a herringbone shape, an axial flow type blower is arranged right below the fin tube bundle, steam exhausted by a steam turbine flows into two rows of fin tube bundles from a steam chamber arranged at the top end of the fin tube bundle, and air flow channels are formed among fins on the tube bundles by the steam flow formed by the axial flow type blower, so that the steam in the fin tube bundles and the air flow on the outer wall of the fin tube bundle are subjected to heat exchange, and then the steam is condensed into water for recycling.
The heat exchange efficiency of the air-cooled condenser is low because of the higher degree of dependence on the environment, such as the smaller temperature difference between the steam and the external air under the condition of high steam temperature in summer, and in order to improve the heat exchange effect, measures for increasing the number of fin tube bundles are generally adopted to increase the heat exchange area, but the investment cost is increased, and the recycling efficiency is influenced.
Disclosure of Invention
The invention aims to provide an expansion self-condensation type steam-driven system which can get rid of dependence on the environment and improve the heat energy utilization efficiency of a steam turbine.
The principle of the invention is that a part of liquid medium which is liquefied again by the condensing device is vaporized by the expansion valve, the temperature is reduced sharply in the vaporization process, and the vapor with reduced temperature is led into the condensing tube of the condensing device as the cooling source of the condensing device. Meanwhile, the low-temperature low-pressure gas (tail gas for short) after the work of the pneumatic power device is taken as a cooled source to be introduced into a condensing device, and is subjected to heat exchange cooling with the expansion gas taken as the cooling source to be condensed into liquid, and the liquefied liquid enters a vaporization device again through a liquid recovery device, and can be partially introduced into an expansion valve to be re-expanded and vaporized; the gas used as a cooling source is pressurized by a compressor after heat exchange, is led into the front end of the steam-driven power device to do work again, and can enter an expansion valve to be expanded and vaporized again after condensation by a heat exchanger, thus completing the whole cycle. The method gets rid of the dependence on the environment of the steam-driven power device, improves the heat energy utilization efficiency of the traditional steam turbine, and can convert air energy into kinetic energy.
The technical aim of the invention is realized by the following technical scheme: an expansion self-condensing type steam-driven system comprises a steam-driven working device for changing high-temperature high-pressure steam into low-temperature low-pressure steam and outputting kinetic energy at the same time, a condensing device for heat exchange, an expansion device for expanding liquid or steam liquid into steam state, and a vaporization device for converting liquid into steam state from liquid state by increasing temperature, wherein the steam-driven working device is provided with a steam inlet and a steam outlet, and the steam outlet end of the vaporization device is connected with the steam inlet of the steam-driven working device;
the condensing device is internally provided with two paths of inlets and outlets, a steam outlet of the steam-driven acting device is communicated with one inlet of the condensing device, and the other inlet of the condensing device is communicated with the low-pressure end of the expansion device; one path of outlet of the condensing device is communicated with the inlet of the vaporizing device or/and the high-pressure end of the expansion valve through a first liquid recovery device, the other path of outlet of the condensing device is communicated with the inlet of the vapor compression device, the liquid recovery device is a device capable of conveying liquid from the low-pressure end to the high-pressure end, and the vapor compression device is a device capable of compressing the volume of vapor;
the outlet of the gas compression device is communicated with at least one of the steam inlet of the steam-driven acting device, the inlet of the vaporizing device and the high-pressure end of the expansion device, and when the high-pressure end of the expansion device is independently communicated with the outlet of the gas compression device, a first heat exchanger is arranged on a passage of the expansion device.
Preferably, the expansion device comprises an expansion valve and a liquid storage container, wherein the expansion valve is connected with the liquid storage container through a one-way valve, the liquid storage container is connected with the vaporization device, and the expansion valve is connected with an inlet of the condensation device.
Preferably, when the outlet of the vapor compression device is communicated with the inlet of the vaporizing device, a vapor-liquid separator and a second liquid recovery device are arranged on the passage of the vapor compression device.
Preferably, the steam power plant employs a steam turbine for acting on the power plant.
Preferably, the gas compression device is a gas compressor, the gas compressor is driven by electric power or is connected with the steam-driven acting device through a clutch and/or a speed regulator to be driven by the steam-driven acting device,
preferably, the device also comprises a steam control valve, wherein the steam control valve is arranged on a communicating pipeline between the steam outlet end of the vaporizing device and the steam acting device.
Preferably, the vaporizing device comprises a liquid medium and a vaporizing vessel, wherein an air-steam heat exchanger or/and a fuel heater is arranged on the inlet of the vaporizing vessel.
Preferably, the condensing device comprises a condensing pipe and a vapor-liquid separator, and the vapor-liquid separator is connected with the first liquid recovery device.
Preferably, the first liquid recovery device comprises a liquid pump, and the liquid pump is driven by electric power or/and driven by the steam-driven power device through a transmission and a clutch device.
Preferably, the two inlets of the first heat exchanger are respectively connected with the gas compression device and the first liquid recovery device, and the two outlets of the first heat exchanger are respectively connected with the expansion valve and the vaporization device.
Preferably, the condenser further comprises a second heat exchanger, wherein the second heat exchanger is connected between the condensing device and the vapor compression device, and is any one or two of an air heat exchanger and a vapor heat source exchanger.
Preferably, the liquid medium has a boiling point lower than the natural environment temperature at normal pressure, and one or two of them may be used at the same time.
The invention has the beneficial effects that:
according to the invention, the recovery and utilization of the liquid acting medium and tail heat energy in the steam-driven system are realized, part of the liquid medium is vaporized through the expansion device, and the tail steam after acting by the steam-driven acting device is matched for heat exchange, so that the self condensation is realized, the steam-driven acting device gets rid of dependence on the environment, the heat energy utilization efficiency of the traditional steam turbine is improved, and meanwhile, the conversion of air energy into kinetic energy can be realized.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
1. a steam-driven acting device; 1-1, a steam turbine; 1-2, a gas pressure control valve; 2. a vaporization device; 2-1, a vaporization container; 2-2, an air heat exchanger; 2-3, a liquid medium; 2-4, a first liquid pump; 2-5, a one-way valve; 3. a gas control valve; 4. a vapor compression device; 4-1, 4-2, one-way valve; 5. a condensing device; 5-1, a condensation pipe; 5-2, a vapor-liquid separator; 6. a first liquid recovery device; 6-1, a liquid pump; 6-2, a transmission and a clutch device; 7. an expansion device; 7-1, an expansion valve; 7-2, a liquid storage container; 8. a second liquid recovery device; 8-1, a second liquid pump; 8-2, a vapor-liquid separator; 9. a first heat exchanger; 7-3, 9-1, 9-2, 9-3, 9-4, one-way valves; 10. a second heat exchanger; 11. and (5) working equipment.
Detailed Description
The following description is only of preferred embodiments of the present invention, and the scope of protection is not limited to the examples, but the technical solutions falling under the concept of the present invention should fall under the scope of protection of the present invention, and it should be pointed out that, for those skilled in the art, these modifications and adaptations should and are considered as well, without departing from the principle of the present invention.
Example 1
Referring to fig. 1, the expansion self-condensation type steam-driven system of the embodiment comprises a steam-driven working device 1 for changing high-temperature high-pressure steam into low-temperature low-pressure steam and outputting kinetic energy at the same time, a condensing device 5 for heat exchange, an expansion device 7 for expanding liquid or steam-liquid into steam state, and a vaporization device 2 for converting liquid into steam state from liquid state by increasing temperature, wherein the steam-driven working device 1 is provided with a steam inlet and a steam outlet, and the steam outlet end of the vaporization device 2 is connected with the steam inlet of the steam-driven working device 1;
the inside of the condensing device 5 is provided with two paths of inlets and outlets, the steam outlet of the steam-driven acting device 1 is communicated with one inlet of the condensing device 5, one path of the inlet is called one path of a cooled source, and the other inlet of the condensing device 5 is communicated with the low-pressure end of the expansion device 7 and is called one path of the cooled source; one path of outlet of the cooled source in the condensing device 5 is communicated with the inlet of the vaporizing device and the high-pressure end of the expansion device 7 through the first liquid recovery device 6, one path of outlet of the cooled source in the condensing device 5 is communicated with the inlet of the vapor compression device 4 through the second heat exchanger 10, and the second heat exchanger 10 adopts an air heat exchanger or a vapor heat source exchanger depending on the adopted liquid medium and the working temperature.
The outlet of the gas compression device 4 is communicated with at least one of the steam inlet of the steam-driven acting device 1, the inlet of the vaporizing device and the high-pressure end of the expansion device, and each pipeline communicated with the outlet is connected with a one-way valve.
A gas pressure control valve 1-2 is arranged between the outlet of the gas compression device 4 and the gas inlet of the steam acting device 1.
In this embodiment, a part of the liquid medium 2-3 re-liquefied by the condensing device 5 is vaporized by the expansion valve 7-1 in the expansion device 7 to form an expansion gas, the temperature is rapidly reduced in the vaporization process, and the gas with the reduced temperature is introduced into the condensing tube 5-1 of the condensing device 5 to be used as a cooling source of the condensing device 5. Meanwhile, tail gas after the work of the steam-driven work-doing device 1 is introduced into the condensing device 5 to be subjected to heat exchange and cooling with the expansion gas serving as a cooling source, the tail gas is liquefied into liquid, the liquefied liquid enters the vaporizing device 2 again through the first liquid recovery device 6, the gas serving as the cooling source is pressurized through the gas compression device 4 after heat exchange, and the liquefied liquid is introduced into the front end of the steam-driven work-doing device 1 to do work again, or can be introduced into the vaporizing device 2 to be vaporized again, or is introduced into the high-pressure end of the expansion device to be vaporized again, so that the whole cycle is completed.
Taking the example that the outlet of the vapor compression device 4 is connected with the vapor inlet of the vapor acting device 1, the operation process is specifically described as follows:
the outlet of the vapor compression device 4 is connected with the inlet of the vaporizing device 2 and the high-pressure end of the expansion device 7 or two or three of the vapor compression device and the high-pressure end of the expansion device are connected with the vapor inlet of the steam-driven power device 1 in a similar principle and operation mode, and no separate description is provided.
When the system starts to work, firstly, the gas compression device 4 is started, the gas compression device 4 starts to extract gas in one path of the cooling source of the condensing device 5, the air pressure in the pipeline is reduced, the expansion device 7 is opened, the expansion device 7 expands and vaporizes the liquid and then sprays the liquid into the pipeline taking the condensing device 5 as the cooling source, a large amount of heat is required in the process of expanding the liquid into the gas, the temperature in the pipeline is reduced, the temperature of the gas in the condensed path is reduced along with the mutual contact of the pipeline of the cooling source and the condensed path, the condensed gas is gradually condensed into the liquid, the gas pressure in the pipeline is reduced along with the continuous condensation of the gas in the condensed path into the liquid, the inlet in the condensed path is communicated with the gas outlet of the steam acting device 1, the air pressure difference is formed between the gas outlet and the gas inlet of the steam acting device 1, the high-temperature high-pressure gas in the vaporizing device 2 enters the inside the steam acting device 1, the internal impeller is pushed to operate under the action of the pressure difference between the inlet and the outlet of the steam acting device, and the tail of the high-pressure gas in the vaporizing device 2 enters the liquefied device 6, and the tail of the liquefied gas is recovered from the high-pressure tail of the condensed device 1, and the liquefied tail gas enters the cooling device 6 after passing through the pipeline of the high-pressure acting device 1.
The vapor in the cooling source path of the condensing device 5 is heated by the vapor in the cooling source path and the second heat exchanger 10, and after being compressed by the vapor compression device 4, the pressure is increased, the temperature is increased, the vapor enters the interior through the vapor inlet of the steam-driven acting device 1, the impeller is driven to work, and the tail vapor is discharged to the tail of the impeller, so that the whole cycle is completed.
Example two
Compared with the first embodiment, the main change is that the outlet of the cooled source in the condensing device 5 is connected with the inlet of the vaporizing device 2 only through the first liquid recovery device 6 and is not communicated with the high-pressure end of the expansion device 7; the second is that the outlet of the vapour compression device 4 is only in communication with the high pressure end of the expansion device. The third is that a second heat exchanger 10 is not arranged on a pipeline of the condensing device 5, wherein one outlet of the cooling source is communicated with the inlet of the vapor compression device 4; the fourth is that in this embodiment, the high-pressure end of the expansion device 7 is separately connected to the outlet of the vapor compression device 4, and a first heat exchanger 9 is required to be disposed on the passage, and the purpose of the first heat exchanger 9 is to cool and liquefy the medium entering the high-pressure end of the expansion device 7, and to raise the temperature of the liquid entering the vaporization device 2.
The operation process is as follows:
when the system starts to work, firstly, the vapor compression device 4 is started, the vapor compression device 4 starts to extract vapor in one path of the cooling source of the condensing device 5, the air pressure in the pipeline is reduced, the expansion device 7 is opened, the expansion device 7 expands and vaporizes liquid and then sprays the liquid into the pipeline taking the condensing device 5 as the cooling source, a large amount of heat is required in the process of expanding the liquid into vapor, the temperature in the pipeline is reduced, the temperature of the vapor in the condensed path is reduced along with the pipeline of the cooling source, the condensed vapor is gradually condensed into liquid, the vapor pressure in the pipeline is reduced along with the continuous condensation of the vapor in the condensed path into liquid, the inlet in the condensed path is communicated with the vapor outlet of the vapor doing device 1, the air pressure difference is formed between the vapor outlet and the vapor inlet of the vapor doing device 1, the vapor control valve 3 is opened, the high-temperature high-pressure vapor in the vaporizing device 2 enters the interior of the vapor doing device 1, the internal impeller is pushed to run out under the action of the pressure difference between the vapor inlet and the vapor outlet, and the vapor tail enters the vapor tail part of the vapor tail 1 as the cooling device 2 after passing through the heat exchanger, and the vapor tail enters the first heat exchange device 2 as the cooling device, and the vapor tail is recovered as the vapor tail 9 after passing through the heat exchange device.
The vapor in the cooling source path of the condensing device 5 is heated by the vapor in the cooling source path, compressed by the vapor compression device 4, increased in pressure and temperature, enters the first heat exchanger 9 as a pipeline of the cooling source for heat exchange and cooling, is liquefied, and is input into the high-pressure end of the expansion device 7 again, so that the whole cycle is completed.
In this embodiment, the liquid medium returns to the expansion device 7 as a condensed pipeline in the expansion device 7 through the pipeline taking the expansion device 7 and the condensation device 5 as a cooling source, the vapor compression device 4 and the first heat exchanger 9 to complete a cycle; the other path of the liquid medium returns to the vaporizing device 2 through a pipeline taking the vaporizing device 2, the steam-driven power device 1 and the condensing device 5 as a cooled source, and a pipeline taking the first liquid recovery device 6 and the first heat exchanger 9 as condensation, so that one cycle is completed; since the two paths of liquid medium are independent of each other, two different liquid mediums can be used in this embodiment, operating in different paths.
Example III
Compared with the first embodiment, the main change is that the cooling source in the condensing device 5 is connected with the high-pressure end of the expansion device 7 only through the first liquid recovery device 6 and is not connected with the inlet of the vaporizing device 2 any more; the second place is that the outlet of the vapor compression device is communicated with the inlet of the vaporizing device 2, which can be single-phase communication or can be communicated with the inlet of the vaporizing device 2 and the vapor inlet of the vapor doing device 1 at the same time; the third is that a second heat exchanger 10 is not arranged on a pipeline of the condensing device 5, wherein one outlet of the cooling source is communicated with the inlet of the vapor compression device 4; and the fourth place is that a vapor-liquid separator and a second liquid recovery device 8 are arranged on a pipeline of which the outlet of the vapor compression device is communicated with the inlet of the vaporization device 2.
The operation of this example is as follows:
when the system starts to work, firstly, the gas compression device 4 is started, the gas compression device 4 starts to extract gas in one path of the cooling source of the condensing device 5, the air pressure in the pipeline is reduced, the expansion device 7 is opened, the expansion device 7 expands and vaporizes liquid and then sprays the liquid into the pipeline taking the condensing device 5 as the cooling source, a large amount of heat is required in the process of expanding the liquid into the gas, the temperature in the pipeline is reduced, the temperature of the gas in the condensed path is reduced along with the pipeline of the cooling source and gradually condensed into liquid due to the mutual contact of the pipeline of the cooling source and the condensed path, the pressure of the gas in the pipeline is reduced along with the continuous condensation of the gas in the condensed path into liquid, the inlet in the condensed path is communicated with the steam outlet of the steam acting device 1, the air pressure difference is formed between the steam outlet and the steam inlet of the steam acting device 1, the high-temperature high-pressure gas in the vaporizing device 2 enters the inside the steam acting device 1, the inner impeller is pushed to operate under the action of the pressure difference between the inlet and the steam outlet, and the pressure difference of the steam outlet of the steam acting device 1 is simultaneously discharged into the liquefied tail 6 as the liquid after the liquid is cooled by the condensing device 1, and the tail of the liquefied gas is recovered through the high-pressure of the pipeline 1.
The vapor in the cooling source path of the condensing device 5 is heated by the vapor in the cooling source path, after being compressed by the vapor compression device 4, the boiling point of the vapor rises along with the pressure increase, the vapor starts to liquefy, the separated liquid is sent into the vaporizing device 2 through the vapor-liquid separator and the second liquid recovery device 8 arranged on the pipeline, and the separated vapor can directly enter the vapor working device 1 to do work again or enter the front end of the vapor-liquid separator to be pressurized and liquefied continuously, so that the whole cycle is completed.
Some statements herein are for ease of understanding and do not specifically refer to something such as "vapor" refers to a phase change of a liquid after a temperature rise or a pressure drop, but also to "vapor", "compression means" refers to a means for changing the volume of a vapor by pressing, and also to "pressurization means", "condensation means" and "heat exchange means" are basically consistent in principle and may be considered as the same type of equipment herein.
The above embodiments are illustrative of the present invention, and not limiting, and any simple modifications of the present invention fall within the scope of the present invention.

Claims (12)

1. An expansion self-condensing pneumatic system, characterized by: the device comprises a steam acting device for changing high-temperature high-pressure steam into low-temperature low-pressure steam and outputting kinetic energy at the same time, a condensing device for heat exchange, an expansion device for expanding liquid or steam into steam, and a vaporization device for converting liquid into steam from liquid by increasing temperature, wherein the steam acting device is provided with a steam inlet and a steam outlet, and the steam outlet end of the vaporization device is connected with the steam inlet of the steam acting device;
the condensing device is internally provided with two paths of inlets and outlets, a steam outlet of the steam-driven acting device is communicated with one inlet of the condensing device, and the other inlet of the condensing device is communicated with the low-pressure end of the expansion device; one path of outlet of the condensing device is communicated with the inlet of the vaporizing device or/and the high-pressure end of the expansion device through the first liquid recovery device, and the other path of outlet of the condensing device is communicated with the inlet of the vapor compression device;
the outlet of the gas compression device is communicated with at least one of the steam inlet of the steam-driven acting device, the inlet of the vaporizing device and the high-pressure end of the expansion device, and when the high-pressure end of the expansion device is independently communicated with the outlet of the gas compression device, a first heat exchanger is arranged on a passage of the expansion device.
2. An expansion self-condensing aerodynamic system according to claim 1, characterized in that the expansion device comprises an expansion valve and a liquid storage container, the expansion valve and the liquid storage container are connected by a one-way valve, the liquid storage container is connected with the vaporizing device, and the expansion valve is connected with the inlet of the condensing device.
3. An expansion and self-condensing vapor system according to claim 1, characterized in that when said vapor compression device outlet is in communication with said vaporizing device inlet, a vapor-liquid separator and a second liquid recovery device are disposed in the path thereof.
4. An expansion self-condensing steam turbine system according to any of claims 1-3, characterized in that said steam turbine is adapted to act on a power plant.
5. An expansion self-condensing steam turbine system according to any of claims 1-3, further comprising a steam control valve mounted on the communication line between the vaporizing device and the steam power plant.
6. An expansion self-condensing aerodynamic system according to any of claims 1-3, characterized in that said vaporization means comprises a liquid medium and a vaporization vessel, an air heat exchanger or/and a fuel heater being provided at the inlet end of said vaporization vessel.
7. An expansion self-condensing aerodynamic system according to any of claims 1-3, characterized in that said condensing means comprises a condenser tube and a vapour-liquid separator, said vapour-liquid separator being connected to the first liquid recovery means.
8. An expansion self-condensing aerodynamic system according to any of claims 1-3, characterized in that said first fluid recovery means comprises a fluid pump driven by an aerodynamic work device by electric power or/and by means of a transmission and clutch means.
9. An expansion self-condensing aerodynamic system according to any of claims 1-3, characterized in that said vapour compression device is a vapour compressor driven by electric power or/and by means of a clutch.
10. An expansion self-condensing aerodynamic system according to claim 1, characterized in that the two inlets of the first heat exchanger are connected to the gas compression device and the first liquid recovery device, respectively, and the two outlets of the first heat exchanger are connected to the expansion valve and the vaporization device, respectively.
11. An expansion self-condensing aerodynamic system according to claim 1, characterized by further comprising a second heat exchanger connected between the condensing means and the vapor compression means, either or both of an air heat exchanger and a vapor heat source exchanger.
12. The liquid medium of claim 6, wherein: the liquid medium has a boiling point lower than the natural environment temperature under normal pressure, and one or two of the liquid medium can be adopted at the same time.
CN202311118134.9A 2023-09-01 2023-09-01 Expansion self-condensation type steam-driven system Pending CN117287994A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202311118134.9A CN117287994A (en) 2023-09-01 2023-09-01 Expansion self-condensation type steam-driven system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202311118134.9A CN117287994A (en) 2023-09-01 2023-09-01 Expansion self-condensation type steam-driven system

Publications (1)

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CN117287994A true CN117287994A (en) 2023-12-26

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