CN214536885U

CN214536885U - Solar energy thermal electric heating pump pipe

Info

Publication number: CN214536885U
Application number: CN202120572438.2U
Authority: CN
Inventors: 郑恺; 姚湘; 张喆; 陈旻辉
Original assignee: Wuxi Taihu University
Current assignee: Wuxi Taihu University
Priority date: 2021-03-19
Filing date: 2021-03-19
Publication date: 2021-10-29
Anticipated expiration: 2031-03-19

Abstract

The utility model relates to the technical field of solar heat utilization, in particular to a solar thermoelectric heat pump pipe, which comprises an inner pipe and an outer pipe which are coaxially arranged, wherein the outer pipe is sleeved outside the inner pipe, the inner pipe comprises a heat-resistant stainless steel pipe, the outer surface of the heat-resistant stainless steel pipe is sequentially covered with an inner heat conduction insulating layer, a semiconductor thermoelectric film chip, an outer heat conduction insulating layer and a coating absorbing layer from inside to outside, one end of the heat-resistant stainless steel pipe is connected with an electrode guide wire, and two ends of the inner pipe are also connected with a stainless steel corrugated pipe. The thermal compensation and the thermal mass adjustment of the thermal system are realized.

Description

Solar energy thermal electric heating pump pipe

Technical Field

The utility model relates to a solar thermal energy utilizes technical field, concretely relates to solar thermal energy electric heat pump pipe.

Background

In the prior art, a medium-high temperature solar vacuum heat collecting tube in the application field has the function of high light condensation and heat collection, does not have the power generation function, and needs to form a solar heat power generation system with a heat energy power device, but the system integration is complex and the investment and operation cost is high.

In the aspect of the existing solar heat utilization, low-grade heat energy is basically utilized, and the solar heat utilization device does not have the functions of energy enhancement and energy level improvement. The solar heat utilization device is thermally integrated with an absorption heat pump or a compression heat pump, high-energy-density high-grade heat supply is realized, the system is complex, the operation cost is high, and the feasibility and the reliability are researched.

SUMMERY OF THE UTILITY MODEL

To exist not enough among the prior art, the utility model provides a solar thermal energy electric heat pump pipe, the technical problem that solve how to design one kind can directly utilize solar energy to carry out thermoelectric generation and heat energy supply in step, can directly again with photovoltaic power generation compatible matching and the integrated thermoelectric heat pump tubular construction of heating power.

In order to solve the technical problem, the utility model provides a technical scheme is: the solar thermoelectric heat pump pipe comprises an inner pipe and an outer pipe which are coaxially arranged, the outer pipe is sleeved outside the inner pipe, the inner pipe comprises a heat-resistant stainless steel pipe, an inner heat-conducting insulating layer, a semiconductor thermoelectric thin film chip, an outer heat-conducting insulating layer and a paint absorbing layer are sequentially covered on the outer surface of the heat-resistant stainless steel pipe from inside to outside, one end of the heat-resistant stainless steel pipe is connected with an electrode guide wire, and two ends of the inner pipe are also connected with a stainless steel corrugated pipe;

the outer tube comprises a heat-resistant glass tube, an anti-reflection layer is arranged on the inner surface of the heat-resistant glass tube, one end of the heat-resistant glass tube is connected with a glass wiring tube opening, the electrode guide wire is led out of the outer tube through the glass wiring tube opening, and vacuum metal sealing covers are arranged at two ends of the outer tube in a sealing mode.

Furthermore, a cavity is formed between the inner tube and the outer tube, a vacuum metal charging nozzle is arranged on the vacuum metal sealing cover, and the cavity is communicated with the outside air through the vacuum metal charging nozzle.

Furthermore, a metal end cover is arranged at a welding joint formed by high-temperature welding between the glass wiring pipe orifice and the electrode guide wire.

Further, a spring support is arranged between the outer pipe and the inner pipe.

The beneficial effect that this technical scheme brought is: the utility model discloses solar energy thermoelectric heat pump pipe, collect solar energy collection, semiconductor heat and semiconductor heat pump tribit are triple functions of an organic whole, both can constitute solar energy thermoelectric generation and solar energy collection difunctional system with heat medium circulation system, can realize the compatibility and the heating power integration of heating power electric power with photovoltaic power generation system again, solar energy resource can be collected to scale and resourceization, in order to be applicable to the occasion of the solar thermal energy power generation and the heat utilization of high energy level grade, can also with the compatible matching of heating power collecting system of solar thermal power generation, realize its thermal system thermal compensation and heat matter and adjust.

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 schematic structural diagram of a solar thermoelectric heat pump tube according to an embodiment of the present invention;

FIG. 2 is a diagram of the operation of the solar thermoelectric heat pump tube in a specific application;

in the figure: 1-inner tube, 7-outer tube, 1-1-heat-resistant stainless steel tube, 1-2-inner heat-conducting insulating layer, 1-3-semiconductor thermoelectric film chip, 1-4-outer heat-conducting insulating layer, 1-5-coating absorbing layer, 1-6-electrode guide wire, 1-7-stainless steel corrugated tube, 7-1-heat-resistant glass tube, 7-2-glass wiring tube mouth, 3-vacuum metal sealing cover, 5-cavity, 4-metal end cover and 6-spring support.

Detailed Description

The preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings, and it should be understood that the preferred embodiments are described herein for purposes of illustration and explanation, and not limitation.

As shown in fig. 1, the solar thermal electric heating pump pipe comprises an inner pipe 1 and an outer pipe 7 which are coaxially arranged, and the outer pipe 7 is sleeved outside the inner pipe 1. The inner pipe 1 comprises a heat-resistant stainless steel pipe 1-1, an inner heat conducting insulating layer 1-2, a semiconductor thermoelectric film chip 1-3, an outer heat conducting insulating layer 1-4 and a coating absorbing layer 1-5 are sequentially covered on the outer side surface of the heat-resistant stainless steel pipe from inside to outside through a semiconductor micromachining process, wherein the inner heat conducting insulating layer 1-2 and the outer heat conducting insulating layer 1-3 are both high-temperature-resistant heat conducting insulating ceramic coatings, the semiconductor thermoelectric film chip 1-3 is a p-type n-type semiconductor thermoelectric film chip, and the coating absorbing layer 1-5 is an antioxidant solar selective absorbing coating layer, so that the triple functions of integrating solar heat collection, semiconductor heat collection and a semiconductor heat pump are realized, a solar temperature difference power generation and solar heat collection dual-function system can be formed by the heat medium circulating system, and the compatibility and the thermal integration of thermal power can be realized by the photovoltaic power generation system, the solar energy resource can be collected in a large scale and in a resource mode so as to be suitable for occasions of solar energy power generation and heat energy utilization with high energy level grades, and the solar energy heat collection system can be compatible and matched with the thermal collection system of the solar energy power generation to realize thermal compensation and heat quality adjustment of the thermal system.

One end of the heat-resistant stainless steel pipe 1-1 is connected with an electrode guide wire 1-6, and two ends of the inner pipe 1 are also connected with stainless steel corrugated pipes 1-7, so that an integral inner pipe structure of the thermoelectric heat pump pipe is formed.

The outer tube 7 comprises a heat-resistant glass tube 7-1, an anti-reflection layer is arranged on the inner surface of the heat-resistant glass tube 7-1, one end of the heat-resistant glass tube 7-1 is connected with a glass wiring tube opening 7-2, and the electrode guide wire 1-6 is led out of the outer tube 7 through the glass wiring tube opening 7-2, so that an integral outer tube structure of the thermoelectric pump tube is formed.

On the whole, the solar thermal electric heating pump pipe in the technical scheme can directly utilize the leading-edge technology and materials in the aspect of solar energy, has the technical advancement, has the advantages of simple process structure, convenience in manufacturing, low cost and good economic practicability, has the functions of directly utilizing solar energy to synchronously generate electricity and supply heat energy, also has the functions of directly being compatible with photovoltaic power generation and electric power-heat power integration and realizing heat supply of the solar thermal electric heating pump, can be directly applied to construction and application of distributed renewable energy sources, and has the advantages of simple system integration, low construction and operation cost, convenience in maintenance and the like.

The two ends of the outer tube 7 are hermetically provided with vacuum metal caps 3, whereby the entire interior is sealed by the vacuum metal caps 3.

In this embodiment, a cavity 5 is formed between the inner tube 1 and the outer tube 7, the vacuum metal sealing cover 3 is provided with a vacuum metal charging connector 2, and the cavity 5 is communicated with the outside air through the vacuum metal charging connector 2, so that the vacuum metal charging connector 2 can be used for vacuumizing and sealing the cavity 5 after the vacuum metal sealing cover 3 is covered.

In the embodiment, the glass connecting tube opening 7-2 and the electrode guide wire 1-6 are welded at high temperature, a metal end cover 4 is arranged at a formed welding opening, kovar alloy filler and glass powder are filled in a threading hole gap between the glass connecting tube opening 7-2 and the electrode guide wire 1-6 for high-temperature welding, and heat-resistant insulating glass cement and the metal end cover 4 are used for sealing and protecting, so that vacuum sealing of the welding position of the glass connecting tube opening 7-2 and the electrode guide wire 1-6 is realized.

In the present embodiment, the spring bracket 6 is provided between the outer tube 7 and the inner tube 1, whereby the firmness and stability of the whole can be ensured.

In summary, the solar thermoelectric heat pump pipe of the present invention integrates triple functions of solar heat collection, semiconductor heat collection and semiconductor heat pump, can form a solar thermoelectric generation and solar heat collection dual-function system with a heat medium circulation system, can realize thermal power-electric power compatibility and thermal power integration with a photovoltaic power generation system, can collect solar energy resources in large scale and resource, is suitable for occasions of solar energy power generation and heat energy utilization with high energy level grade, and can also be compatible with a thermal power collection system of solar energy power generation, thereby realizing thermal power compensation and heat quality adjustment of the thermal system.

As shown in fig. 2, this is a specific application of the solar thermoelectric heat pump tube of the present invention, and the high-concentration solar thermoelectric heat pump tube is integrated with the power-heat of the solar photovoltaic intelligent power supply, so as to collect solar energy resources in a large scale and resource manner, so as to be suitable for the occasions of solar energy power generation and heat energy utilization with high energy level grade.

Heat-electricity supply for commercial buildings of large-scale public buildings

The power-heat integrated system composed of solar photovoltaic and solar thermal electric heat pump can fully converge solar energy photo-thermal photoelectric resources, and is used for heat-power supply of large-scale public buildings and commercial buildings.

In summer and autumn, solar photothermal energy is vigorous, a solar thermoelectric function mode is adopted, the temperature difference between solar photothermal energy and heat medium fluid drives a semiconductor thermoelectric power generation to be incorporated into a photovoltaic power supply, and heat of a heat medium carrier is needed for supplying heat load. In winter and spring, solar thermal energy is weakened, a solar thermal pump function mode is adopted, a solar thermal electric heating pump pipe is powered by a solar photovoltaic intelligent power supply and performs energy regulation, and the solar thermal electric heating pump heats, enhances solar thermal energy and improves energy level grade so as to adapt to high-grade energy application scenes such as solar heating, thermal air conditioning and fresh air system constant temperature regulation.

Construction and application of distributed renewable energy source power supply plant

The high-concentration solar thermal electric heating pump pipe and the solar photovoltaic intelligent power supply electric-thermal integrated system can collect solar energy resources in a large-scale and resource mode, and realize regional heat supply and partial power supply.

In summer and autumn, a solar thermoelectric function mode is adopted for heat supply, and solar thermoelectric power is combined into a photovoltaic power supply; the heat medium carrier supplies heat to the outside. In winter and spring, the solar heat pump function mode is adopted for supplying heat externally, and the input electric energy of the solar heat and electric heat pump pipe is provided by the photovoltaic power supply for local use.

Thermal compensation and energy regulation of solar trough type thermal power generation

The high-concentration solar thermal electric heating pump pipe and solar photovoltaic intelligent power supply electric-thermal integrated system has the functions of a solar thermal electric heating pump and can be used for a thermal compensation and energy regulation system of solar trough type thermal power generation. The solar trough type heat collecting tube is arranged in series-parallel connection with the solar trough type heat collecting tube, and thermal compensation and heat quality adjustment of a thermal system can be realized according to seasonal changes and climate changes.

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. A solar thermal electric heat pump pipe is characterized in that: the heat-resistant stainless steel tube comprises an inner tube (1) and an outer tube (7) which are coaxially arranged, wherein the outer tube (7) is sleeved outside the inner tube (1), the inner tube (1) comprises a heat-resistant stainless steel tube (1-1), an inner heat-conducting insulating layer (1-2), a semiconductor thermoelectric film chip (1-3), an outer heat-conducting insulating layer (1-4) and a paint absorbing layer (1-5) are sequentially covered on the outer surface of the heat-resistant stainless steel tube (1-1) from inside to outside, one end of the heat-resistant stainless steel tube (1-1) is connected with an electrode guide wire (1-6), and two ends of the inner tube (1) are also connected with stainless steel corrugated tubes (1-7);

the electrode guide wire is characterized in that the outer tube (7) comprises a heat-resistant glass tube (7-1), an anti-reflection layer is arranged on the inner surface of the heat-resistant glass tube (7-1), one end of the heat-resistant glass tube (7-1) is connected with a glass connection tube opening (7-2), the electrode guide wire (1-6) is led out of the outer tube (7) through the glass connection tube opening (7-2), and two ends of the outer tube (7) are hermetically provided with vacuum metal sealing covers (3).

2. A solar thermal electric heat pump tube according to claim 1, characterized in that: a cavity (5) is formed between the inner tube (1) and the outer tube (7), a vacuum metal charging connector (2) is arranged on the vacuum metal sealing cover (3), and the cavity (5) is communicated with the outside air through the vacuum metal charging connector (2).

3. A solar thermal electric heat pump tube according to claim 1, characterized in that: and a metal end cover (4) is arranged at a welding joint formed by high-temperature welding between the glass wiring pipe orifice (7-2) and the electrode guide wire (1-6).

4. A solar thermal electric heat pump tube according to claim 1, characterized in that: a spring support (6) is arranged between the outer tube (7) and the inner tube (1).