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CN-224215578-U - Solar vacuum tube and solar water heater

CN224215578UCN 224215578 UCN224215578 UCN 224215578UCN-224215578-U

Abstract

The application belongs to the technical field of solar water heaters, and particularly relates to a solar vacuum tube and a solar water heater. The solar vacuum tube comprises a vacuum tube body and a flow guide piece, wherein the flow guide piece is arranged in the vacuum tube body, a flow channel is formed between the flow guide piece and the inner wall of the vacuum tube body, and the flow channel is used for fluid flow. The solar vacuum tube provided by the application optimizes the flowing space of the fluid in the vacuum tube body, improves the circulating speed of the fluid in the vacuum tube body, reduces the heat loss, and further ensures that the heat gain of the solar vacuum tube is higher.

Inventors

  • WANG SEN
  • YANG TAO

Assignees

  • 郑州海尔新能源科技有限公司
  • 青岛经济技术开发区海尔热水器有限公司
  • 海尔智家股份有限公司

Dates

Publication Date
20260508
Application Date
20250317

Claims (9)

  1. 1. A solar vacuum tube, comprising: A vacuum tube body (100); The flow guide piece (200) is arranged in the vacuum tube body (100), a flow channel is formed between the flow guide piece (200) and the inner wall of the vacuum tube body (100), the flow channel is used for fluid flow, and the flow guide piece (200) is a phase change heat storage piece.
  2. 2. The solar vacuum tube according to claim 1, characterized in that the vacuum tube body (100) is a circular tube and the flow guide (200) is a cylinder or a prism.
  3. 3. Solar vacuum tube according to claim 2, characterized in that the vacuum tube body (100) is arranged coaxially with the flow guide (200).
  4. 4. The solar vacuum tube according to claim 1, characterized in that the phase change heat storage member comprises a housing (210) and a phase change heat storage portion (220) filled in the housing (210), the phase change heat storage portion (220) absorbing or releasing heat by a phase change, the housing (210) being connected with the vacuum tube body (100).
  5. 5. The solar vacuum tube according to claim 4, wherein the phase change thermal storage portion (220) comprises a paraffin portion.
  6. 6. The solar vacuum tube according to any of claims 1-5, wherein the vacuum tube body (100) comprises a first tube body (110) and a second tube body (120), the first tube body (110) being arranged in the second tube body (120), a vacuum chamber being provided between the first tube body (110) and the second tube body (120), the flow guide (200) being located in the first tube body (110).
  7. 7. The solar vacuum tube according to any of claims 1-5, further comprising at least one support (300); The supporting piece (300) is connected with the inner wall of the vacuum tube body (100) and the flow guide piece (200).
  8. 8. The solar vacuum tube according to claim 7, wherein the support (300) comprises a first connection portion (310) and at least one second connection portion (320), the second connection portion (320) is disposed on a peripheral side of the first connection portion (310), the first connection portion (310) is sleeved on the guide (200), and the second connection portion (320) abuts against an inner wall of the vacuum tube body (100).
  9. 9. A solar water heater comprising a water storage tank and a solar vacuum tube according to any one of claims 1 to 8 in communication with said water storage tank.

Description

Solar vacuum tube and solar water heater Technical Field The application belongs to the technical field of solar water heaters, and particularly relates to a solar vacuum tube and a solar water heater. Background The solar water heater is used for converting solar energy into heat energy and transmitting the heat energy to the water tank so as to heat water in the water tank. The solar water heater comprises a vacuum tube type solar water heater. In the prior art, a vacuum tube type solar water heater comprises a plurality of vacuum tubes, wherein the vacuum tubes are used for supplying water to flow, the vacuum tubes are used for absorbing solar energy and converting the solar energy into heat energy, and the vacuum tubes are used for transferring the heat energy to water in the vacuum tubes so as to heat the water. However, the vacuum tube has a large heat loss when transferring heat energy to water, resulting in a low heat gain of the vacuum tube. Disclosure of utility model The application provides a solar vacuum tube and a solar water heater, which are used for solving the problem of low heat gain of the vacuum tube. In one aspect, the present application provides a solar vacuum tube comprising: a vacuum tube body; the flow guide piece is arranged in the vacuum tube body, a flow channel is formed between the flow guide piece and the inner wall of the vacuum tube body, and the flow channel is used for fluid flow. In some possible embodiments, the vacuum tube body is a circular tube, and the flow guide member is a cylinder or a prism. In some possible embodiments, the vacuum tube body is disposed coaxially with the flow guide. In some possible embodiments, the flow guide is a phase change heat storage element. In some possible embodiments, the phase-change heat storage member includes a housing and a phase-change heat storage part filled in the housing, the phase-change heat storage part absorbs or releases heat by undergoing a phase change, and the housing is connected with the vacuum tube body. In some possible embodiments, the phase change heat storage portion comprises a paraffin portion. In some possible embodiments, the vacuum tube body includes a first tube body and a second tube body, the first tube body is disposed in the second tube body, a vacuum chamber is disposed between the first tube body and the second tube body, and the flow guide is disposed in the first tube body. In some possible embodiments, at least one support is further included; the supporting piece is connected with the inner wall of the vacuum tube body and the flow guide piece. In some possible embodiments, the support member includes a first connection portion and at least three second connection portions, each of the second connection portions is sequentially disposed at intervals on a peripheral side of the first connection portion, the first connection portion is sleeved on the flow guiding member, and the second connection portion abuts against an inner wall of the vacuum tube body. In another aspect, the application provides a solar water heater comprising a water storage tank and any solar vacuum tube communicated with the water storage tank. According to the solar vacuum tube and the solar water heater provided by the application, solar energy is absorbed by the vacuum tube body, and the solar energy is converted into heat energy so as to heat fluid in the vacuum tube body. Through setting up the water conservancy diversion spare in the vacuum tube body, form the flow channel between the inner wall of vacuum tube body and water conservancy diversion spare to optimize the flow space of fluid in the vacuum tube body, make the flow path of fluid in the vacuum tube body shorten, thereby can improve the circulation rate of fluid in the vacuum tube body, improve the heat transfer efficiency of solar vacuum tube, reduce the heat loss, and then improve the heat gain of solar vacuum tube. The solar vacuum tube provided by the embodiment of the application has a simpler structure and is easy to realize. Drawings The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the application and together with the description, serve to explain the principles of the application. Fig. 1 is a schematic structural diagram of a solar vacuum tube according to an embodiment of the present application; FIG. 2 is a schematic view of the structure of FIG. 1 from another perspective; FIG. 3 is a cross-sectional view of FIG. 1; Fig. 4 is a schematic view of the structure of the support member in fig. 3. Specific embodiments of the present application have been shown by way of the above drawings and will be described in more detail below. The drawings and the written description are not intended to limit the scope of the inventive concepts in any way, but rather to illustrate the inventive concepts to those skilled in the art by reference to the specific embodiments. Ref