CN216693691U

CN216693691U - Solar heat pipe wall body radiation heating device

Info

Publication number: CN216693691U
Application number: CN202122093575.0U
Authority: CN
Inventors: 刘俊; 褚晋简; 张宇航; 郑冰琪; 郑清尹; 陈利明; 牛宝联; 张忠斌
Original assignee: Zhenjiang Institute For Innovation And Development Nnu
Current assignee: Zhenjiang Institute For Innovation And Development Nnu
Priority date: 2021-09-02
Filing date: 2021-09-02
Publication date: 2022-06-07
Anticipated expiration: 2031-09-02

Abstract

The utility model discloses a solar heat pipe wall radiation heating device, which comprises a solar heating device and a wall inner heat pipe heating device, wherein the solar heating device and the wall inner heat pipe heating device use phase-change materials as heat transfer media. The solar heat collector and the wall body inner heat pipe heating device are communicated into a closed system through two circulating pipelines, and phase-change fluid which can be converted into liquid phase and gas phase mutually is filled in the closed system to serve as a heat transmission medium. The utility model utilizes the organic combination of solar energy, indoor wall heat pipes, phase-change materials and transmission media to realize the integration of heating and building structures, and simultaneously, the combined action of the solar energy and the phase-change materials ensures that the heating of the device is more efficient and energy-saving, and the advantages of the heat pipes, the solar energy, the phase-change materials and the like are better reflected.

Description

Solar heat pipe wall body radiation heating device

Technical Field

The utility model relates to a solar heat pipe wall body radiation heating device, in particular to a solar heating device using a phase-change material as a heat transfer medium, relates to a heat pipe implanted heat exchange wall body, can be widely applied to building facilities, and belongs to the technical field of solar heat energy utilization and heat storage.

Background

The sun is the most abundant permanent energy in the world, and the radiation power reaches 3.8 x 1023 kW, wherein the solar radiation energy flux intercepted by the earth is 1.7x 1014 kW, which is more than 5000 times larger than the sum of nuclear energy, geothermal energy and gravitational energy reserves. China belongs to a country with quite rich solar energy resources, the annual sunshine duration in 2/3 areas of the territorial area is more than 2200h, the total solar energy radiation amount in unit area is more than 5000MJ/m2, and the method has good application conditions and potential. Solar energy is used as a clean renewable energy source, and the most direct way to apply solar energy is to utilize solar energy for heating and domestic hot water. However, the solar radiation energy reaching the earth surface has low density, and shows obvious rareness, discontinuity and instability along with the regular changes such as different regions, day-night alternation, seasonal change and the like, and the heat utilization of the solar energy is also greatly limited. When the weather is clear, the solar radiation energy is strong, the outdoor temperature is also higher, and the heat demand is relatively smaller. However, at night or in rainy days, the solar radiation energy is weak, the outdoor temperature is low, and the heat demand is large, which is the contradiction between the heat demand and the solar radiation energy intensity. Therefore, in order to utilize solar energy to the maximum extent, the solar radiation energy collected during sunny days is stored as heat energy for use during nighttime and rainy days.

The patent document with the application number of 2018110608 provides a solar heat collection and storage integrated device, which comprises light-transmitting glass, an air layer, a solar energy absorption coating, a heat accumulator metal upper wall plate, a heat exchange pipe, a heat accumulator internal heat separation plate, a composite phase change heat storage material, a heat accumulator metal lower wall plate, a heat accumulator metal side wall plate and a heat insulation layer. Utilize solar energy absorptive coating to collect the heat of solar energy, utilize compound phase change heat storage material to store the heat of solar energy, recycle the heat transfer between phase change heat storage material and the heat transfer pipe and derive the heat, realize solar energy collection, heat accumulation, heat transfer integration, but this device heat availability factor is lower, and the flow is more complicated.

Patent document No. 201110266 proposes an intelligent heat exchange wall with an implanted heat pipe, which includes a wall of a low-energy building. The method is characterized in that: the inner surface heat exchange tube and the outer surface heat exchange tube are respectively composed of a plurality of capillary tubes and main tubes, and the capillary tubes are uniformly distributed on the surface of the inner or outer heat preservation layer of the wall body and are connected with the main tubes. Although the heat exchange wall realizes green energy conservation, the utilization rate of solar energy is not high.

Disclosure of Invention

The utility model aims to solve the problems of realizing the building integration of the heat pipe device, improving the utilization rate of solar energy and the utilization rate of heat stored at night and in rainy days,

the utility model adopts the technical scheme that the wall inner heat pipe heating device adopting solar heat supply comprises a solar heat collection system I and a wall inner heat pipe heating system II, and is characterized in that: the solar heat collection system I comprises a solar heat collector (1) with a heat pipe vacuum pipe, a heat storage water tank (2), a heat collection pump (3) and an expansion water tank (9); the heat pipe heating system II in the wall comprises heat pipes (13), a water distributor (11), a water collector (10), a water jacket (18) and a fan coil (14), wherein the water jacket (18) and the fan coil (14) are arranged outside the hot ends of the heat pipes (13), the heat pipes (13) are arranged in the wall body (15), and the solar heat collecting system I and the heat pipe heating system II in the wall body are connected through a hot water circulating pump (4).

The solar heat collection system I is characterized in that a solar heat collector (1) is arranged on the main body of the solar heat collection system I, and the solar heat collector (1) is connected with a heat storage water tank (2) and an expansion water tank (9).

The heat pipe heating system II in the wall body is mainly provided with a heat pipe (13), and the heat pipe (13) comprises an evaporation end, a heat insulation part and a condensation end.

And a water distributor (11), a water collector (10) and a fan coil (14) are arranged on two sides of the heat pipe heating system II in the wall body.

The heat exchange tube (13) is externally provided with a phase change heat storage material layer

The heat pipe (13) wrapped by the heat insulation material layer (20) is arranged inside the wall body, and therefore building heating integration is formed. A water jacket (18) is arranged outside the evaporation end of the heat pipe (13).

The utility model has the beneficial effects that:

compared with the prior art, the heat pipe heating device in the wall body is arranged in the wall body, so that the building space is saved, the comfort level is improved by utilizing radiation heat exchange, and the building integration of the heat pipe device is realized. The utility model utilizes the organic combination of solar energy, indoor wall heat pipes, phase-change materials and transmission media to realize the integration of heating and building structures, and simultaneously, the combined action of the solar energy and the phase-change materials ensures that the heating of the device is more efficient and energy-saving, and the advantages of the heat pipes, the solar energy, the phase-change materials and the like are better reflected.

Drawings

The utility model is further described below with reference to the accompanying drawings and examples.

FIG. 1 is a schematic diagram of a solar wall-mounted heat pipe heating apparatus according to the present invention.

Fig. 2 is a longitudinal cross-sectional view of the wall of the present invention.

In the figure: the system comprises a solar heat collector 1, a heat storage water tank 2, a heat collection pump 3, a hot water circulating pump 4, a heat meter 5, a temperature difference controller 6, a ball valve 7, a stop valve 8, an expansion water tank 9, a water collector 10, a water separator 11, a check valve 12, a heat pipe 13, a fan coil 14, a wall body 15, an ambient temperature sensor 16, a heating mixer 17, a water jacket 18, a heat insulation material shell 19 and a heat insulation material layer 20.

Detailed Description

The utility model is further described with reference to the following figures and detailed description:

as shown in fig. 1 and 2, a solar heating device with heat pipes in a wall body for supplying heat comprises a solar heat collecting system I and a heat pipe heating system II in the wall body, wherein the solar heat collecting system I comprises a solar heat collector (1) with heat pipe vacuum pipes, a heat storage water tank (2), a heat collecting pump (3) and an expansion water tank (9); the heat pipe heating system II in the wall comprises heat pipes (13), a water distributor (11), a water collector (10), a water jacket (18) and a fan coil (14), wherein the water jacket (18) and the fan coil (14) are arranged outside the hot ends of the heat pipes (13), the heat pipes (13) are arranged in the wall body (15), and the solar heat collecting system I and the heat pipe heating system II in the wall body are connected through a hot water circulating pump (4).

And a water separator (11), a water collector (10) and a fan coil (14) are arranged on two sides of the heat pipe heating system II in the wall body.

And a phase change heat storage material layer is arranged outside the heat exchange tube (13).

The heat pipe (13) wrapped by the heat insulation material layer (20) is arranged inside the wall body, and the heat insulation material shell (19) is sleeved outside the heat pipe, so that the building heating integration is formed.

A water jacket (18) is arranged outside the evaporation end of the heat pipe (13).

The solar heat collection system I is characterized in that a solar heat collector (1) is arranged on the main body of the solar heat collection system I, and the solar heat collector (1) is connected with a heat storage water tank (2) and an expansion water tank (9) of an electric heater.

The application principle of the utility model is briefly described as follows:

in the solar heat supply wall body inner heat pipe heating device, in a sunny day in winter, the heat pipe vacuum pipe solar heat collector (1) absorbs solar radiation, cold water entering the lower portion of the heat storage water tank (2) is heated and then sent to the upper portion of the heat storage water tank (2), and heat is stored in a heat storage medium. Then hot water enters the water jacket under the action of a circulating water pump, the evaporation section of the heat pipe (13) in the heat pipe radiation wall body is heated, working media in the heat pipe (13) absorb heat and vaporize, flow to the condensation section under a small pressure difference, release heat to the outside and condense into liquid, the condensed liquid returns to the evaporation section under the action of gravity, and the process is repeated. Meanwhile, the heat pipe (13) absorbs heat from the water jacket end and releases heat through phase change, one part of the heat is transmitted to the outside of two indoor sides through two sides of the wall body to supply heat, and the other part of the heat is brought to the heat insulation material layer (20) outside the heat pipe (13) through heat conduction and stored.

Wall backwater enters the bottom of the heat storage water tank (2). When the water supply temperature of the heat storage water tank (2) is higher, the water supply temperature is a certain set value by adjusting the opening degree of the water return bypass valve.

At night or in cloudy days, when the heat storage capacity of the solar heat collector (1) is insufficient or stops working, the heat storage water tank (2) and the heat insulation material layer (20) directly supply heat to the wall of the heat pipe, and if the heat storage capacity is still insufficient, a heater at the position of the water supply pipe can be started for supplement. In consideration of the requirement of freezing prevention in winter, a heat exchanger can be arranged in the heat storage water tank (2), the outdoor heat collection part I is used as a closed loop, and the freezing prevention liquid is added into the heat-carrying medium.

The solar heat supply wall inner heat pipe heating device can well solve the problem that the condensation end of the heat pipe needs to continuously supply heat to the heating end but the evaporation end does not continuously supply heat; the heat pipe wall body form can be directly combined with low-grade energy solar energy, and is efficiently applied to a heating system; and the heat pipe wall body heat transfer medium has high energy density, and can simultaneously heat the indoor spaces at two sides of the wall body, thereby greatly reducing energy loss.

Claims

1. The utility model provides a solar thermal energy pipe wall body radiation heating system, includes solar energy collection system I and wall body inner heat pipe heating system II, its characterized in that: the solar heat collection system I comprises a solar heat collector (1), a heat storage water tank (2), a heat collection pump (3) and an expansion water tank (9); the heat pipe heating system II in the wall comprises heat pipes (13), a water distributor (11), a water collector (10), a water jacket (18) and a fan coil (14), wherein the water jacket (18) and the fan coil (14) are arranged outside the hot ends of the heat pipes (13), the heat pipes (13) are arranged in the wall body (15), and the solar heat collecting system I and the heat pipe heating system II in the wall body are connected through a hot water circulating pump (4).

2. A solar heat pipe wall radiant heating unit as defined in claim 1, wherein: the solar heat collection system I is characterized in that a solar heat collector (1) is arranged on the main body of the solar heat collection system I, and the solar heat collector (1) is connected with a heat storage water tank (2) and an expansion water tank (9).

3. A solar heat pipe wall radiant heating unit as defined in claim 1, wherein: the heat pipe heating system II in the wall body is mainly provided with a heat pipe (13), and the heat pipe (13) comprises an evaporation end, a heat insulation part and a condensation end.

4. A solar heat pipe wall radiant heating unit as defined in claim 1 and claim 3, characterized in that: and a water distributor (11), a water collector (10) and a fan coil (14) are arranged on two sides of the heat pipe heating system II in the wall body.

5. A solar heat pipe wall radiant heating unit as defined in claim 1, wherein: and a phase change heat storage material layer is arranged outside the heat pipe (13).

6. A solar heat pipe wall radiant heating unit as defined in claim 1, wherein: the heat pipe (13) is wrapped by a heat insulation material layer (20) and is arranged inside the wall body.

7. A solar heat pipe wall radiant heating unit as defined in claim 1, wherein: a water jacket (18) is arranged outside the evaporation end of the heat pipe (13).