阅读说明：本技术 发电热机内气体工作介质循环节能装置 (Gas working medium circulation energy-saving device in power generation heater ) 是由 肖茂章 于 2020-07-27 设计创作，主要内容包括：本发明公开了一种发电热机内气体工作介质循环节能装置,包括低温低压工质气体压力容器和高温高压工质气体压力容器,低温低压工质气体压力容器与高温高压工质气体压力容器连接,在低温低压工质气体压力容器安装有气体压缩机,在所述高温高压工质气体压力容器内安装有高温低密度气体与低温高密度气体的交换腔体,在高温低密度气体与低温高密度气体的交换腔体内设有自由分隔活塞,以及在低温低压工质气体压力容器内安装有所述逆卡诺循环制冷系统的制冷压缩机和蒸发器等；本发明节省气体压缩机压缩工质气体循环时的能耗,节能效果明显。(The invention discloses a gas working medium circulation energy-saving device in a power generation heat engine, which comprises a low-temperature low-pressure working medium gas pressure container and a high-temperature high-pressure working medium gas pressure container, wherein the low-temperature low-pressure working medium gas pressure container is connected with the high-temperature high-pressure working medium gas pressure container; the invention saves the energy consumption of the gas compressor in the process of compressing working medium gas circulation and has obvious energy-saving effect.)

1. A gas working medium circulation energy-saving device in a power generation heat engine is characterized by comprising a gas compression circulation subsystem; the gas compression circulation subsystem comprises a gas compressor (11) and a heat-insulating partition plate (68), wherein an electromagnetic valve EV2 is arranged on the heat-insulating partition plate (68); the artificial second heat source substance storage chamber (30) is divided into a working medium temporary storage chamber (131) and a working medium storage chamber (132) by a heat insulation partition plate (68); the gas compressor (11) is connected with the working medium temporary storage chamber (131), and the working medium temporary storage chamber (131) is connected with the working medium storage chamber (132) through an electromagnetic valve EV 2; the gas compressor (11) presses the working medium gas into the working medium temporary storage chamber (131), then the working medium gas is discharged into the working medium storage chamber (132) as the artificial second heat source substance by opening the electromagnetic valve EV2 to absorb the heat of the radiator (141) and/or the heat exchanger (151), and the heat absorbed working medium gas is pressed into the first exchange chamber (17).

2. The gas working medium circulation energy-saving device in the power generation heat engine as claimed in claim 1 or 2, characterized by comprising a gas working medium storage and adjustment chamber (66), wherein the gas working medium storage and adjustment chamber (66) is connected with a gas compressor (11).

3. The gas working medium circulation energy-saving device in the power generation heat engine according to claim 3, characterized by comprising a low-temperature low-pressure working medium gas pressure vessel (10) and a high-temperature high-pressure working medium gas pressure vessel (40), wherein the low-temperature low-pressure working medium gas pressure vessel (10) is connected with the high-temperature high-pressure working medium gas pressure vessel (40); the gas compressor (11) is installed on the low-temperature low-pressure working medium gas pressure container (10), the first exchange chamber (17) is installed in the high-temperature high-pressure working medium gas pressure container (40), a free separation piston is arranged in the first exchange chamber (17), the refrigeration compressor (120) and the evaporator (121) of the reverse Carnot cycle refrigeration system (12) are installed in the low-temperature low-pressure working medium gas pressure container (10), the refrigeration compressor (120) is connected with the evaporator (121), the evaporator (121) is connected with the gas compressor (11), the gas compressor (11) is connected with the first exchange chamber (17), and when low-temperature low-pressure working medium gas enters the first exchange chamber (17), the low-temperature low-pressure working medium gas is downwards pressed into the high-temperature high-pressure working medium gas pressure container (40) by the free separation piston;

one end of a vortex tube (16) is connected with a first exchange chamber (17), the other end of the vortex tube (16) is connected with a low-temperature low-pressure working medium gas pressure container (10), and a heat exchanger (15) is arranged in a high-temperature high-pressure working medium gas pressure container (40); the vortex tube (16) can heat the working medium gas discharged from the first exchange chamber (17), discharges the working medium gas into the heat exchanger (15) for heat exchange and heat release after heat dissipation, and returns to the low-temperature low-pressure working medium gas pressure container (10) by using a pipeline;

a flowing working medium gas heating chamber (108) is arranged in the high-temperature high-pressure working medium gas pressure container (40), a high-pressure chamber high-temperature area (109) is formed in the flowing working medium gas heating chamber (108), an exhauster (18) is installed in the flowing working medium gas heating chamber (108), the exhauster (18) is connected with the first exchange chamber (17), working medium gas at the high-pressure chamber high-temperature area (109) is exhausted into the first exchange chamber (17) by the exhauster (18), and is heated and radiated by a vortex tube (16) and then exhausted to the heat exchanger (15); the controller (28) is electrically connected to the gas compressor (11), the first exchange chamber (17), and the exhauster (18).

4. The energy-saving device for circulation of gas working medium in electricity generation and heat engine as claimed in claim 3, wherein heat insulation barrier is provided in the flowing working medium gas heating chamber (108) and the first exchange chamber (17).

5. The gas working medium circulation energy-saving device in a power generation heat engine according to claim 3, wherein the low-temperature low-pressure working medium gas pressure vessel (10) comprises a nickel steel low-temperature low-pressure working medium gas pressure vessel.

6. The gas working medium circulation energy-saving device in the power generation heat engine as claimed in claim 3, characterized by comprising heat transfer fins (27), wherein the heat transfer fins (27) are arranged around the high-temperature high-pressure working medium gas pressure vessel (40), and heat is exchanged with the external environment through the heat transfer fins (27).

Technical Field

The invention relates to the technical field of power generation and heat engines, in particular to a gas working medium circulation energy-saving device in a power generation and heat engine.

Background

The working medium gas circulation technology in the prior heat engine system has the following problems:

various low-pressure working media are directly compressed by the compressor and circulate to return to a high-pressure area, so that the high-quality work can be consumed, such as electric energy and mechanical energy which are output by the system, and the net work amount which is output by the heat engine system and is supposed to be output is consumed, so that the thermal efficiency is not high, and the utilization rate of heat energy is generally low. For example, the industrial waste heat power generation heat engine system, the geothermal power generation system, the high-temperature steam thermal power generation system and the like have low comprehensive heat efficiency and poor economic benefit at present, and are not popularized and used on a large scale, and the industrial waste heat power generation heat engine system and the geothermal power generation system have the minimum working temperature limit of heat energy, which is required to be over 60 ℃ mostly, and the utilization rate of the heat energy by the systems is not more than 20%. The temperature of the waste heat released by the high-temperature steam thermal power generation system during operation is mostly higher than 60 ℃, so the waste heat is not utilized, and the whole system can release heat to the external environment during operation to generate heat loss.

Disclosure of Invention

The invention aims to overcome the defects of the prior art and provides a gas working medium circulation energy-saving device in a power generation heat engine, so that the energy consumption of a gas compressor for compressing a circulation working medium is saved, and the energy-saving effect is obvious.

The purpose of the invention is realized by the following technical scheme:

a gas working medium circulation energy-saving device in a power generation heat engine comprises a gas compression circulation subsystem; the gas compression circulation subsystem comprises a gas compressor and a heat-insulating partition plate, and an electromagnetic valve EV2 is arranged on the heat-insulating partition plate; the artificial second heat source substance storage chamber is divided into a working medium temporary storage chamber and a working medium storage chamber by a heat insulation clapboard; the gas compressor is connected with the working medium temporary storage chamber, and the working medium temporary storage chamber is connected with the working medium storage chamber through an electromagnetic valve EV 2; the gas compressor presses working medium gas into the working medium temporary storage chamber, the working medium gas is discharged into the working medium storage chamber as the artificial second heat source substance by opening the electromagnetic valve EV2 to absorb heat of the radiator and/or the heat exchanger, and the heat absorbed working medium gas is pressed into the first exchange chamber.

And further, the gas working medium storage and adjustment chamber is connected with a gas compressor.

The low-temperature low-pressure working medium gas pressure vessel is connected with the high-temperature high-pressure working medium gas pressure vessel; the gas compressor is installed in the low-temperature low-pressure working medium gas pressure container, the first exchange chamber is installed in the high-temperature high-pressure working medium gas pressure container, the free separation piston is arranged in the first exchange chamber, and the refrigeration compressor and the evaporator of the reverse Carnot cycle refrigeration system are installed in the low-temperature low-pressure working medium gas pressure container;

one end of the vortex tube is connected with the first exchange chamber, the other end of the vortex tube is connected with the low-temperature low-pressure working medium gas pressure container, and the heat exchanger is arranged in the high-temperature high-pressure working medium gas pressure container; the vortex tube can heat the working medium gas discharged from the first exchange chamber, discharges the working medium gas into the heat exchanger after heat dissipation to perform heat exchange and release, and returns the working medium gas to the low-temperature low-pressure working medium gas pressure container by using a pipeline;

the high-temperature high-pressure working medium gas pressure container is provided with a flowing working medium gas heating chamber, a high-pressure chamber high-temperature area is formed in the flowing working medium gas heating chamber, an exhauster is installed in the flowing working medium gas heating chamber and connected with a first exchange chamber, the exhauster exhausts working medium gas at the high-pressure chamber high-temperature area into the first exchange chamber, and the working medium gas is heated and radiated by a vortex tube and then is exhausted to a heat exchanger; the controller is electrically connected with the gas compressor, the first exchange chamber and the exhauster.

Furthermore, the flowing working medium gas heating chamber and the first exchange chamber are both provided with heat insulation interlayers.

Further, the low-temperature low-pressure working medium gas pressure container comprises a nickel steel low-temperature low-pressure working medium gas pressure container.

And the heat transfer fins are arranged around the high-temperature high-pressure working medium gas pressure container and exchange heat with the external environment through the heat transfer fins.

The invention has the beneficial effects that:

the gas compressor device of the invention utilizes the thermodynamic property of working medium gas, can press the cooled low-temperature low-pressure working medium gas into the exchange cavity to be filled with the working medium gas only by consuming very small high-quality work, thereby achieving the effect of saving the energy consumption of the gas compressor for compressing the circulating working medium, and the exchange cavity is filled with the same working medium gas to be in a low-temperature state, the gas density of the exchange cavity is far higher than the gas density of the equal-volume exchange cavity filled with the same high-temperature working medium gas, because of the physical property of the gas, the heated volume of the gas is increased, therefore, the mass of the equal-volume low-temperature working medium gas is far greater than that of the equal-volume high-temperature working medium gas under certain conditions, therefore, the mass of the circulating same-volume low-. Moreover, most heat energy contained in the high-temperature and high-pressure working medium gas after exchange can be released back to the high-temperature and high-pressure chamber by using a vortex tube, a heat exchanger and the like, so that the aim of saving energy again is fulfilled.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic structural diagram of the present invention.

In the figure, 10-a low-temperature low-pressure working medium gas pressure container, 40-a high-temperature high-pressure working medium gas pressure container, 12-an inverse Carnot cycle refrigeration system, 120-a refrigeration compressor, 121-an evaporator, 11-a gas compressor, 17-a first exchange chamber, 16-a vortex tube, 15-a heat exchanger, 109-a high-pressure chamber high-temperature region, 108-a flowing working medium gas heating chamber, 18-an exhauster, 28-a controller and 27-a heat transfer fin.

Detailed Description

The technical solutions of the present invention are further described in detail below with reference to the accompanying drawings, but the scope of the present invention is not limited to the following. Any feature disclosed in this specification (including any accompanying claims, abstract and drawings), may be replaced by alternative features serving equivalent or similar purposes, unless expressly stated otherwise. That is, unless expressly stated otherwise, each feature is only an example of a generic series of equivalent or similar features.

A gas working medium circulation energy-saving device in a power generation heat engine comprises a gas compression circulation subsystem; the gas compression circulation subsystem comprises a gas compressor 11 and a heat-insulating partition plate 68, wherein an electromagnetic valve EV2 is arranged on the heat-insulating partition plate 68; the artificial second heat source substance storage chamber 30 is divided into a working medium temporary storage chamber 131 and a working medium storage chamber 132 by a heat insulating partition 68; the gas compressor 11 is connected with a working medium temporary storage chamber 131, and the working medium temporary storage chamber 131 is connected with a working medium storage chamber 132 through an electromagnetic valve EV 2; the gas compressor 11 presses the working medium gas into the working medium temporary storage chamber 131, opens the electromagnetic valve EV2 and discharges the working medium gas into the working medium storage chamber 132 as the artificial second heat source substance to absorb the heat of the radiator 141 and/or the heat exchanger 151, and presses the heat-absorbed working medium gas into the first exchange chamber 17.

Further, a gas working medium storage adjusting chamber 66 is included, and the gas working medium storage adjusting chamber 66 is connected with the gas compressor 11.

Further, the device comprises a low-temperature low-pressure working medium gas pressure container 10 and a high-temperature high-pressure working medium gas pressure container 40, wherein the low-temperature low-pressure working medium gas pressure container 10 is connected with the high-temperature high-pressure working medium gas pressure container 40; the gas compressor 11 is installed on the low-temperature low-pressure working medium gas pressure container 10, the first exchange chamber 17 is installed in the high-temperature high-pressure working medium gas pressure container 40, a free separation piston is arranged in the first exchange chamber 17, the refrigeration compressor 120 and the evaporator 121 of the reverse Carnot cycle refrigeration system 12 are installed in the low-temperature low-pressure working medium gas pressure container 10, the refrigeration compressor 120 is connected with the evaporator 121, the evaporator 121 is connected with the gas compressor 11, the gas compressor 11 is connected with the first exchange chamber 17, and when the low-temperature low-pressure working medium gas enters the first exchange chamber 17, the low-temperature low-pressure working medium gas is downwards pressed into the high-temperature high-pressure working medium gas pressure container 40 by the free separation piston;

one end of a vortex tube 16 is connected with a first exchange chamber 17, the other end of the vortex tube 16 is connected with a low-temperature low-pressure working medium gas pressure container 10, and a heat exchanger 15 is arranged in a high-temperature high-pressure working medium gas pressure container 40; the vortex tube 16 can heat up the working medium gas discharged from the first exchange chamber 17, discharges the working medium gas into the heat exchanger 15 after heat dissipation to perform heat exchange and release, and returns to the low-temperature low-pressure working medium gas pressure container 10 by using a pipeline;

the high-temperature high-pressure working medium gas pressure container 40 is provided with a flowing working medium gas heating chamber 108, a high-pressure chamber high-temperature area 109 is formed in the flowing working medium gas heating chamber 108, an exhauster 18 is installed in the flowing working medium gas heating chamber 108, the exhauster 18 is connected with the first exchange chamber 17, the exhauster 18 exhausts the working medium gas at the high-pressure chamber high-temperature area 109 into the first exchange chamber 17, and the working medium gas is heated and radiated by a vortex tube 16 and then exhausted to the heat exchanger 15; the controller 28 is electrically connected to the gas compressor 11, the first exchange chamber 17, and the exhauster 18.

Further, heat insulating barriers are provided in both the flowing medium gas heating chamber 108 and the first exchange chamber 17.

Further, the low-temperature low-pressure working medium gas pressure vessel 10 includes a nickel steel low-temperature low-pressure working medium gas pressure vessel.

Further, the heat exchanger comprises heat transfer fins 27, wherein the heat transfer fins 27 are arranged on the periphery of the high-temperature high-pressure working medium gas pressure container 40, and heat is exchanged with the external environment through the heat transfer fins 27.

In the embodiment of the invention, as shown in fig. 1, the gas working medium circulation energy-saving device in the power generation heat engine comprises a low-temperature low-pressure working medium gas pressure container 10 and a high-temperature high-pressure working medium gas pressure container 40, wherein the low-temperature low-pressure working medium gas pressure container 10 is connected with the high-temperature high-pressure working medium gas pressure container 40; the gas compressor 11 is installed on the low-temperature low-pressure working medium gas pressure container 10, the first exchange chamber 17 is installed in the high-temperature high-pressure working medium gas pressure container 40, a free separation piston is arranged in the first exchange chamber 17, the refrigeration compressor 120 and the evaporator 121 of the reverse Carnot cycle refrigeration system 12 are installed in the low-temperature low-pressure working medium gas pressure container 10, the refrigeration compressor 120 is connected with the evaporator 121, the evaporator 121 is connected with the gas compressor 11, the gas compressor 11 is connected with the first exchange chamber 17, and when the low-temperature low-pressure working medium gas enters the first exchange chamber 17, the low-temperature low-pressure working medium gas is downwards pressed into the high-temperature high-pressure working medium gas pressure container 40 by the free separation piston;

one end of a vortex tube 16 is connected with a first exchange chamber 17, the other end of the vortex tube 16 is connected with a low-temperature low-pressure working medium gas pressure container 10, and a heat exchanger 15 is arranged in a high-temperature high-pressure working medium gas pressure container 40; the vortex tube 16 can heat up the working medium gas discharged from the first exchange chamber 17, discharges the working medium gas into the heat exchanger 15 after heat dissipation to perform heat exchange and release, and returns to the low-temperature low-pressure working medium gas pressure container 10 by using a pipeline;

the high-temperature high-pressure working medium gas pressure container 40 is provided with a flowing working medium gas heating chamber 108, a high-pressure chamber high-temperature area 109 is formed in the flowing working medium gas heating chamber 108, an exhauster 18 is installed in the flowing working medium gas heating chamber 108, the exhauster 18 is connected with the first exchange chamber 17, the exhauster 18 exhausts the working medium gas at the high-pressure chamber high-temperature area 109 into the first exchange chamber 17, and the working medium gas is heated and radiated by a vortex tube 16 and then exhausted to the heat exchanger 15; the controller 28 is electrically connected to the gas compressor 11, the first exchange chamber 17, and the exhauster 18.

Optionally, a heat insulating barrier is provided in both the flowing process gas heating chamber 108 and the first exchange chamber 17.

Optionally, the flowing working medium gas heating chamber 108 is provided with an opening, which is communicated with the high temperature and high pressure working medium gas pressure vessel 40.

Optionally, the free separation piston is made of heat insulation material.

Optionally, the low-temperature low-pressure working medium gas pressure vessel 10 comprises a nickel steel low-temperature low-pressure working medium gas pressure vessel.

Optionally, heat transfer fins 27 are included, and the heat transfer fins 27 are arranged around the high-temperature high-pressure working medium gas pressure vessel 40, and exchange heat with the external environment through the heat transfer fins 27.

The working process, principle and effect of the invention are as follows:

the device starts the self-checking operation when the device is started, detects whether the working pressure parameter, the temperature parameter and the like are normal, prompts if the working pressure parameter, the temperature parameter and the like are abnormal, and starts the controller to start working if the working pressure parameter, the temperature parameter and the like are normal. Working medium gas is injected into the high-temperature high-pressure working medium gas pressure container 40 through a gas working medium injection valve to be prestored, the working medium gas can be inert gas which is low in specific heat capacity, low in critical temperature, high in saturated steam pressure and high in critical pressure and can be krypton gas and argon gas and the like, the gas pressure in the high-temperature high-pressure working medium gas pressure container 40 is controlled to be about 8-10 Mpa when the working medium gas is injected, the working medium gas quality under the design condition can be kept at the temperature initialization approximately under the room-temperature environment condition, and the controller starts to control the system to start to work according to the volume of the high-temperature high-pressure working medium gas pressure container 40. The electromagnetic valves EV1, EV2, EV3 and EV4 are all in a closed state in an initial state, the controller 28 controls to open the electromagnetic valve EV1, controls the gas compressor 11 to start working, controls the electromagnetic valve EV2 to open, presses low-temperature low-pressure working medium gas cooled by the reverse Carnot cycle refrigeration system 12 into the first exchange chamber 17, pushes the free partition piston to move upwards, and in the process of moving the free partition piston upwards, because the electromagnetic valve EV2 is opened and is communicated with the low-temperature low-pressure working medium gas pressure container 10 through a pipeline, the pressure is equal, part of the working medium gas on the free partition piston is easy to be heated and radiated by the vortex tube 16, the heat exchanger 15 exchanges and radiates heat and returns to the low-temperature low-pressure working medium gas pressure container 10, the vortex tube 16 is utilized to heat up and radiate the heat, the heat exchanger 15 retains most of the heat energy in the high-temperature high-, because the upper part of the free separation piston is communicated with the low-temperature low-pressure working medium gas pressure container, the pressure is the same, and compared with the existing scheme of directly pressing the gas working medium with the same mass into the high-pressure chamber, the power consumption of the gas compressor can be greatly saved. When the free partition piston moves to the top position, the position sensor arranged in the first exchange chamber 17 is used for detecting a signal and transmitting the signal to the controller 28, the controller 28 closes the electromagnetic valve EV1 and the electromagnetic valve EV2, opens the electromagnetic valve EV3 and the electromagnetic valve EV4, controls the exhauster 18 to exhaust the working medium gas in the high-pressure chamber high-temperature region 109 into the first exchange chamber 17, pushes the free partition piston to press down and exhaust low-temperature low-pressure gas into the high-temperature high-pressure working medium gas pressure container 40, and achieves the purpose of circulating the low-temperature low-pressure working medium gas back to the high-temperature high-pressure working medium gas pressure container. In the process, only small high-quality work is consumed, and a scheme which can consume large high-quality work (namely, a scheme of directly compressing low-temperature low-pressure working medium gas into a high-temperature high-pressure working medium gas pressure container through a gas compressor is not adopted.

The gas compressor device can press the cooled low-temperature low-pressure working medium gas into the exchange cavity to be filled with the low-temperature low-pressure working medium gas only by consuming very small high-quality work, so that the energy consumption effect of the gas compressor for compressing the circulating working medium is saved, the gas density of the exchange cavity filled with the low-temperature low-pressure working medium gas is far higher than that of the equal-volume exchange cavity filled with the high-temperature high-pressure working medium gas, the mass of the equal-volume low-temperature working medium gas is far greater than that of the equal-volume high-temperature working medium gas under a certain condition, and therefore, the mass of the circulating same-volume low-temperature working medium gas can be exchanged by using less high-temperature gas, the. Moreover, most heat energy contained in the high-temperature and high-pressure working medium gas after exchange can be released back to the high-temperature and high-pressure chamber by using a vortex tube, a heat exchanger and the like, so that the aim of saving energy again is fulfilled.

In other embodiments of the present invention, the gas compression cycle device technology thermal engine power generation system can be utilized to convert the pressure potential energy of the gas working medium into electric energy for output, thereby achieving the purpose of reducing the temperature in the high-temperature high-pressure working medium gas pressure container 40, and when the temperature is lower than the external environment temperature, the heat transfer fins 27 arranged on the high-temperature high-pressure working medium gas pressure container 40 are utilized to absorb the external environment heat energy, thereby achieving the purpose of generating power by waste heat, and similar embodiments are not repeated herein.

The density of the same working medium gas after temperature reduction and compression in the equal-volume container is higher than that of the same high-temperature gas before temperature reduction in equal volume.

The working medium gas after the work of the invention returns to the low-temperature low-pressure working medium gas pressure container 10.

The aspects of the invention, including the structural elements and component relationships, design principles, method steps, etc., are capable of use in various other combinations, modifications, and environments and is capable of changes within the scope of the invention as expressed in the claims, commensurate with the above teachings or the skill or knowledge of the relevant art, and without departing from the spirit and scope of the invention.