CN210087561U

CN210087561U - Solar energy-based micro combined cooling, heating and power system

Info

Publication number: CN210087561U
Application number: CN201920903664.7U
Authority: CN
Inventors: 刘泽邦; 程强; 白杨; 胡齐胜; 林迎彬
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-06-17
Filing date: 2019-06-17
Publication date: 2020-02-18
Anticipated expiration: 2029-06-17

Abstract

The utility model belongs to the technical field of the new forms of energy, especially for microminiature cooling, heating and power cogeneration system based on solar energy, include the closed loop that comprises solar energy collection conversion module, turbine power module, water heater, refrigerator and circulation supply module, solar energy collection conversion module includes the optics condensing lens that is used for gathering solar energy and turns into the steam generator of internal energy with solar energy, the focus of optics condensing lens is gathered on steam generator, turbine power module includes hot cylinder, turbine and generator; the system is based on solar energy, has small environmental pollution, long service life, large future development potential, simple structure, convenient installation and easy transportation, can meet the requirements of normal life energy for power generation, refrigeration and the like of remote mountainous areas and other areas with difficult power utilization, has wide application prospect, and can also be used for research subjects in the fields of single family energy utilization or solar energy utilization efficiency and the like.

Description

Solar energy-based micro combined cooling, heating and power system

Technical Field

The utility model belongs to the technical field of the new forms of energy, concretely relates to microminiature combined cooling heating and power system based on solar energy.

Background

With the increasing consumption of fossil fuels and the increasing problem of environmental pollution, the adjustment of energy structures is accelerated, new energy is developed vigorously to become the main melody of energy utilization at present, and solar energy in the new energy is used as high-quality energy, the utilization efficiency is not high, most of solar energy utilization in China is a single energy utilization form, and solar power plants are abundant.

However, due to the restriction of problems such as construction cost, geographical position, utilization efficiency and the like, serious waste phenomenon exists.

Based on this situation, from the viewpoint of energy cascade utilization, a micro combined cooling heating and power system based on solar energy has been proposed, with a small-scale user as a terminal.

SUMMERY OF THE UTILITY MODEL

To solve the problems set forth in the background art described above. The utility model provides a microminiature combined cooling heating and power system based on solar energy has and uses clean energy solar energy as the input energy, has realized that combined cooling heating and power and the cascade of energy utilize, and the emission pollution is little to fossil fuel's use has been saved, accords with green's theory.

In order to achieve the above object, the utility model provides a following technical scheme: the microminiature combined cooling heating and power system based on solar energy comprises a closed loop circuit formed by a solar energy collecting and converting module, a turbine power generation module, a water heater, a refrigerator and a circulating supply module, wherein the solar energy collecting and converting module comprises an optical condensing lens used for collecting solar energy and a steam generator used for converting the solar energy into internal energy, the focus of the optical condensing lens is collected on the steam generator, the turbine power generation module comprises a hot cylinder, a turbine and a generator, the output end of the steam generator is respectively connected with the hot cylinder and the turbine, the output end of the hot cylinder is connected with the generator, the output end of the hot cylinder is connected with the water heater, the output end of the water heater is connected with the refrigerator, the circulating supply module comprises a motor and a water pump, the refrigerator and the turbine output working medium act on the input end of the water pump, the output end of the water pump is connected with the steam generator to form a closed loop.

Preferably, the optics condensing lens is fresnel lens, just the diameter of optics condensing lens is 360mm for D, and thickness is 2mm, material PMMA, 92% lens of luminousness, steam generator is at least by the sealed black box that is used for holding the working medium and attached to the paraffin heat reservoir on black box surface constitutes, the working medium is water.

Preferably, the turbine power generation module is a stirling engine.

Preferably, the outer wall of the steam generator is further wound with a layer of copper heat conduction pipe for conveying working media, and the water heater is wrapped outside the heat conduction pipe.

Preferably, the refrigerator adopts an absorption refrigerator.

Preferably, the energy of the water pump is provided by the turbine driven by the working medium, the motor is electrically connected with an external power supply, and the output end of the motor is connected with the input end of the water pump.

Preferably, a coupler used for disconnection and connection is arranged between the motor and the water pump, a pressure sensor used for detecting the pressure of the working medium is arranged in the loop, and the pressure sensor is used for controlling the start and stop of the motor.

Preferably, the optical collecting mirror is provided with a light sensation sensor for detecting the position of sunlight and a driving device for driving the optical collecting mirror to rotate along with the sun.

Compared with the prior art, the beneficial effects of the utility model are that:

the system takes water as a circulating working medium, utilizes a Fresnel lens to condense the light to be used as an energy source of the whole system, and then heats the working medium to perform three-gradient energy utilization;

the first gradient is the output of electric energy, and the high-temperature and high-pressure working medium drives the output shaft work of the Stirling turbine so as to drive the small generator to generate electricity and realize the conversion from mechanical energy to electric energy;

the second gradient is a hot water utilization part, and the heat energy output is realized by heating low-temperature water by using the heat of the high-temperature working medium discharged by the Stirling turbine;

the third gradient is refrigeration utilization, and the residual heat of the high-temperature working medium is utilized and introduced into an absorption refrigeration system for refrigeration to realize the output of cold energy;

the system is based on solar energy, has small environmental pollution, long service life, large future development potential, simple structure, convenient installation and easy transportation, can meet the requirements of normal life energy for power generation, refrigeration and the like of remote mountainous areas and other areas with difficult power utilization, has wide application prospect, and can also be used for research subjects in the fields of single family energy utilization or solar energy utilization efficiency and the like.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 is a system diagram of the present invention.

In the figure: 1. a solar energy collection and conversion module; 11. an optical condenser; 12. a steam generator; 2. a turbine power generation module; 21. a hot cylinder; 22. a turbine; 23. a generator; 3. a water heater; 4. a refrigerator; 5. a circulation supply module; 51. a motor; 52. and (4) a water pump.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1, the present invention provides the following technical solutions: a microminiature combined cooling heating and power system based on solar energy comprises a closed loop formed by a solar energy collecting and converting module 1, a turbine generating module 2, a water heater 3, a refrigerator 4 and a circulating supply module 5, wherein the solar energy collecting and converting module 1 comprises an optical condensing lens 11 for collecting solar energy and a steam generator 12 for converting the solar energy into internal energy, the focus of the optical condensing lens 11 is collected on the steam generator 12, the turbine generating module 2 comprises a hot cylinder 21, a turbine 22 and a generator 23, the output end of the steam generator 12 is respectively connected with the hot cylinder 21 and the turbine 22, the output end of the hot cylinder 21 is connected with the generator 23, the output end of the hot cylinder 21 is connected with the water heater 3, the output end of the water heater 3 is connected with the refrigerator 4, the circulating supply module 5 comprises a motor 51 and a water pump 52, and working media output by the refrigerator 4 and the turbine, the output of the water pump 52 is connected to the steam generator 12 to form a closed loop.

In this embodiment, the whole system is divided into five parts in total, including the solar energy collecting and converting module 1, the turbine power generation module 2, the water heater 3, the refrigerator 4 and the circulation supply module 5, and the specific working process is as follows: the solar tracking system is utilized, the Fresnel lens is used for condensing light, a light spot gathering area is formed at the focus, the high temperature of the light spot is utilized to heat working media, meanwhile, the paraffin heat collecting device is utilized to store solar energy for standby, the heated working media are pressurized and then sprayed into the Stirling turbine, the output shaft is used for generating power, and the first-stage utilization of energy is realized; the high-temperature working medium in the upper stage is introduced into the water heater 3 to heat cold water, so that the second-stage utilization of energy is realized, finally, the working medium with residual heat is introduced into the refrigerator 4 as an absorption refrigeration heat source to be refrigerated, so that the third-stage utilization of energy is realized, and finally, part of the working medium led out from the steam generator 12 is utilized to drive the small turbine 22, so that the water pump 52 is driven to introduce the used working medium back to the solar energy collecting and converting area to be heated again, and the repeated circulation is realized.

Specifically, the optical condenser 11 is a fresnel lens, the diameter of the optical condenser 11 is 360mm, the thickness is 2mm, the material is PMMA, the light transmittance is 92%, the steam generator 12 is at least composed of a sealed black box for containing a working medium and a paraffin wax heat reservoir attached to the surface of the black box, the working medium is water, the optical condenser 11 is provided with a light sensor for detecting the position of sunlight, and a driving device for driving the optical condenser 11 to rotate along with the sun is arranged, so that when the fresnel lens faces the sun, the lens absorbs light to the maximum, according to the selected geometric parameters of the lens, sunlight can be refracted by the lens to form a light spot with the temperature of about 300 ℃ and the area of 16 square cm at the focal distance, the energy difference of different positions of the light spot is ignored, the black box containing the working medium is placed at the focal distance, the light spot is heated to raise the temperature, the conversion from solar energy to heat energy is realized, and meanwhile, the paraffin heat reservoir attached to the surface of the box body can absorb the energy on the surface of the box body to store heat to be used as a reserve energy source.

Specifically, the turbine power generation module 2 is a stirling engine, and the stirling engine outputs power through a cycle of cooling, compressing, absorbing heat, and expanding a working medium (hydrogen or helium) in a cylinder, so the stirling engine is also called a heat engine, and the stirling engine is an external combustion engine, and the effective efficiency of the stirling engine is generally between that of a gasoline engine and that of a diesel engine.

Specifically, the outer wall of the steam generator 12 is further wound with a layer of copper heat conduction pipe used for conveying working medium, the water heater 3 is wrapped outside the heat conduction pipe, when high-temperature working medium flows through the heat conduction pipe, working medium heat can be transferred to hot water through the heat conduction pipe and the outer wall of the water tank, and due to the fact that the whole device works circularly, the high-temperature working medium can heat cold water uninterruptedly, therefore, continuous heat output can be obtained, and utilization of the second level of energy is achieved.

Specifically, the refrigerator 4 adopts an absorption refrigerator, the absorption refrigeration is a common cold source device which uses a heat source as power in the air conditioner and the production process, the efficiency is considerable, the part utilizes the working medium flowing out after heating hot water, and the working medium still has a certain temperature, so the working medium can be used as energy supply of the absorption refrigeration, and under the condition that the energy provided by the Fresnel lens is insufficient, the energy stored in the paraffin heat collector is used for auxiliary heating, so that the refrigerant completes the working cycle of evaporation separation, condensation, throttling and evaporation, and the third-level utilization of the energy is realized.

Specifically, the energy of the water pump 52 is provided by the working medium driving the turbine 22, the motor 51 is electrically connected with an external power supply, the output end of the motor 51 is connected with the input end of the water pump 52, a coupler for disconnection and connection is arranged between the motor 51 and the water pump 52, a pressure sensor for detecting the pressure of the working medium is arranged in a loop, the pressure sensor is used for controlling the start and stop of the motor 51, the working medium is taken by the water pump 52 to the water tank and is pressurized to the working medium, the energy required by the water pump 52 is provided by leading out part of the working medium from the first part of the water tank to drive the small turbine 22, when the whole system is initially started, the water pump 52 is driven by the starting motor 51, when the pressure of the working medium is enough, the motor 51 is.

The utility model discloses a theory of operation and use flow: the solar tracking system is utilized, the Fresnel lens is used for condensing light, a light spot gathering area is formed at the focus, the high temperature of the light spot is utilized to heat working media, meanwhile, the paraffin heat collecting device is utilized to store solar energy for standby, the heated working media are pressurized and then sprayed into the Stirling turbine, the output shaft is used for generating power, and the first-stage utilization of energy is realized; the high-temperature working medium in the upper stage is introduced into the water heater 3 to heat cold water, so that the second-stage utilization of energy is realized, finally, the working medium with residual heat is introduced into the refrigerator 4 as an absorption refrigeration heat source to be refrigerated, so that the third-stage utilization of energy is realized, and finally, part of the working medium led out from the steam generator 12 is utilized to drive the small turbine 22, so that the water pump 52 is driven to introduce the used working medium back to the solar energy collecting and converting area to be heated again, and the repeated circulation is realized.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. Microminiature combined cooling heating and power system based on solar energy, its characterized in that: including collecting the closed loop that conversion module (1), turbine power module (2), water heater (3), refrigerator (4) and circulation supply module (5) constitute by solar energy, conversion module (1) is collected including the optics condensing lens (11) that are used for gathering solar energy and turns into steam generator (12) of internal energy with solar energy to solar energy, the focus gathering of optics condensing lens (11) is in on steam generator (12), turbine power module (2) are including hot cylinder (21), turbine (22) and generator (23), the output of steam generator (12) respectively with hot cylinder (21) and turbine (22) are connected, the output of hot cylinder (21) is connected generator (23), the output of hot cylinder (21) is connected with water heater (3), the output of water heater (3) is connected with refrigerator (4), the circulation supply module (5) comprises a motor (51) and a water pump (52), the refrigerator (4) and the turbine (22) output working media to act on the input end of the water pump (52), and the output end of the water pump (52) is connected with the steam generator (12) to form a closed loop.

2. The solar-based microminiature combined cooling heating and power system as claimed in claim 1, wherein: optics condensing lens (11) are fresnel lens, just the diameter of optics condensing lens (11) is 360mm for D, and thickness is 2mm, material PMMA, and luminousness 92%'s lens, steam generator (12) are at least by the sealed black box that is used for holding the working medium and attach to the paraffin heat reservoir on black box surface constitutes, the working medium is water.

3. The solar-based microminiature combined cooling heating and power system as claimed in claim 1, wherein: the turbine power generation module (2) is a Stirling engine.

4. The solar-based microminiature combined cooling heating and power system as claimed in claim 2, wherein: the outer wall of the steam generator (12) is further wound with a layer of copper heat conduction pipe used for conveying working media, and the water heater (3) is coated outside the heat conduction pipe.

5. The solar-based microminiature combined cooling heating and power system as claimed in claim 1, wherein: the refrigerator (4) adopts an absorption refrigerator.

6. The solar-based microminiature combined cooling heating and power system as claimed in claim 1, wherein: the energy of the water pump (52) is provided by driving the turbine (22) by a working medium, the motor (51) is electrically connected with an external power supply, and the output end of the motor (51) is connected with the input end of the water pump (52).

7. The solar-based microminiature combined cooling heating and power system as claimed in claim 1, wherein: a coupler used for disconnection and connection is arranged between the motor (51) and the water pump (52), a pressure sensor used for detecting the pressure of the working medium is arranged in the loop, and meanwhile, the pressure sensor is used for controlling the starting and stopping of the motor (51).

8. The solar-based microminiature combined cooling heating and power system as claimed in claim 1, wherein: the solar energy collecting device is characterized in that a light sensation sensor used for detecting the position of sunlight is arranged on the optical collecting mirror (11), and a driving device used for driving the optical collecting mirror (11) to rotate along with the sun is arranged.