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CN-224215916-U - Efficient phase-change heat storage device

CN224215916UCN 224215916 UCN224215916 UCN 224215916UCN-224215916-U

Abstract

The utility model discloses a high-efficiency phase-change heat storage device which comprises a packaging unit, a liner unit, a heating medium unit and a heat storage material unit. The packaging unit comprises a shell and a heat preservation layer, the inner container unit comprises an inner container, an inner container anti-corrosion layer, an inner container sealing plate, a reinforcing rib and a support, the heating medium unit is provided with a water inlet and outlet chamber cover, a communication water chamber cover, a tube plate anti-corrosion layer, a U-shaped heat exchange tube, a tube clamp and a connecting piece, and the heat storage material unit comprises a filling tube, an exhaust tube and a phase change heat storage material. The U-shaped heat exchange tube is fixed at fixed distance through a tube clamp, and the inner container is matched with the heat exchange tube in structure. The utility model adopts the fluoroplastic heat exchange tube and the anticorrosive coating, solves the corrosion problem, simultaneously avoids the heat exchange dead zone by uniformly distributing and replacing the heat exchange tube, and improves the heat storage and release efficiency. The branch design of the filling pipe and the exhaust pipe and the arrangement of the isolating valve ensure the material filling safety, and the water distribution hole structure ensures the uniform flow. The liner flange connection and the skid-mounted design simplify installation and maintenance, and are suitable for various application scenes.

Inventors

  • FAN PENG
  • LIU XIANGYU
  • ZHANG LONG
  • LIU YONGCAI

Assignees

  • 深圳市佳运通电子有限公司

Dates

Publication Date
20260508
Application Date
20250514

Claims (8)

  1. 1. The efficient phase-change heat storage device is characterized by comprising a packaging unit, an inner container unit, a heating medium unit and a heat storage material unit; The packaging unit comprises a shell (3) and an insulating layer wrapped on the inner side of the shell (3); The inner container unit comprises an inner container (15), an inner container anti-corrosion layer (14) arranged on the inner side of the inner container (15), an inner container sealing plate (11) fixed on one side of the inner container (15), an inner container reinforcing rib (20) arranged on the outer wall of the inner container (15), an inner container connecting flange (21) for connecting the inner container (15) and the inner container sealing plate (11), and a support (4) for supporting the inner container (15); The heat medium unit comprises a water inlet and outlet chamber cover (1), a communication water chamber cover (2), a water inlet pipe (6) and a water outlet pipe (7) which are connected to the water inlet and outlet chamber cover (1), a tube plate (12) which is connected with the water inlet and outlet chamber cover (1), the communication water chamber cover (2) and an inner container (15) through flanges, a tube plate anti-corrosion layer (13) which is attached to the lower part of the tube plate (12), a U-shaped heat exchange tube (17) which penetrates through the tube plate (12) and the tube plate anti-corrosion layer (13), a tube clamp (16) which is used for fixing the U-shaped heat exchange tube (17) and a tube clamp connecting piece (19) which is used for connecting the tube clamp (16); The heat storage material unit comprises a filling pipe (8), an exhaust pipe (9) and phase change heat storage materials filled in a space surrounded by the inner container anti-corrosion layer (14) and the tube plate anti-corrosion layer (13); The two ends of the U-shaped heat exchange tube (17) respectively penetrate into tube holes of the tube plate (12) and the tube plate anti-corrosion layer (13) and are fixed on the tube plate (12) through expansion joint or welding, the straight sections of the lower part of the U-shaped heat exchange tube (17) are arranged at fixed intervals through a plurality of tube clamps (16) and are connected and fixed through tube clamp connecting pieces (19), the inner container anti-corrosion layer (14) and the tube plate anti-corrosion layer (13) are both fluoroplastic inner liners, and the U-shaped structure of the inner container (15) is matched with the shape of the U-shaped heat exchange tube (17).
  2. 2. The efficient phase-change heat storage device according to claim 1, wherein the filling pipe (8) and the exhaust pipe (9) penetrate through the pipe plate (12) and the pipe plate anti-corrosion layer (13) respectively and are divided into two branches which extend to two ends of the top of the inner container (15), two filling holes and two exhaust holes are formed in the middle upper wall plates of the inner container (15) and the inner container anti-corrosion layer (14) respectively, two branch pipes of the filling pipe (8) are connected with the two filling holes respectively, two branch pipes of the exhaust pipe (9) are connected with the two exhaust holes respectively, a partition valve is arranged on each of the filling pipe (8) and the exhaust pipe (9), and a layer of fluoroplastic anti-corrosion layer is lined on the inner walls of the filling pipe (8) and the exhaust pipe (9).
  3. 3. The efficient phase-change heat storage device according to claim 1 is characterized in that a water chamber partition plate (18) is arranged on the inner side of the water inlet chamber cover (1) to divide a water chamber into a water inlet chamber and a water outlet chamber, fluoroplastic anti-corrosion layers are respectively lined on the inner walls of the water inlet pipe (6) and the water outlet pipe (7), and a plurality of water distribution holes are respectively formed in the outer walls and the end faces of the lower parts of the water inlet pipe (6) and the water outlet pipe (7).
  4. 4. The efficient phase-change heat storage device according to claim 1 is characterized in that the U-shaped heat exchange tube (17) is a small-diameter thin-wall fluoroplastic tube, the tube clamp (16) is made of fluoroplastic, and the fixed connection of the adjacent tube clamp (16) is realized through a tube clamp connecting piece (19).
  5. 5. The efficient phase-change heat storage device according to claim 1, wherein the liner sealing plate (11) is fixedly connected with the liner (15) and the tube plate (12) through a liner connecting flange (21), and a fluoroplastic anti-corrosion layer is lined on the inner wall of the liner sealing plate (11).
  6. 6. The efficient phase-change heat storage device according to claim 1 is characterized in that lifting lugs (5) are respectively arranged on the upper parts of the water inlet and outlet chamber cover (1) and the water connecting chamber cover (2), and the shell (3) is made of color steel plates or galvanized iron sheets and is wrapped on the outer side of the heat preservation layer.
  7. 7. The efficient phase-change heat storage device according to claim 1 is characterized in that the tube plate (12) is connected with the water inlet and outlet chamber cover (1), the communication chamber cover (2) and the inner container (15) through a water chamber cover connecting flange (10), and the bottom of the inner container (15) is supported and fixed through a support (4).
  8. 8. A high efficiency phase change heat storage device according to claim 1, characterized in that a material thermometer is arranged in the phase change heat storage material near the water outlet pipe (7) for monitoring the temperature of the heat storage material.

Description

Efficient phase-change heat storage device Technical Field The utility model relates to the technical field of heat storage devices, in particular to a high-efficiency phase-change heat storage device. Background The phase change heat storage is mainly used for a scene with space-time dislocation at two ends of supply and demand and a scene with space-time difference of energy price, is widely applied to various industries at present, and mainly uses the phase change of phase change materials to cause huge internal energy change so as to achieve the effects of heat storage and heat release; for example, in oil extraction plant stations of oil fields, along with different oil extraction stages, the operation load of a heating furnace also has larger fluctuation, in order to stabilize the operation load of the heating furnace, the phase change heat storage device is additionally arranged, heat is stored in the stage with low heat demand and released in the stage with high heat demand, so that the safe and efficient operation of the equipment is realized, in addition, in some electric heating fields, the phase change heat storage device is adopted to store valley electricity which is cheap at night in the form of heat energy, and the stored heat is released when the electricity price is higher in daytime, so that the aim of reducing the heat supply cost is realized. The phase-change heat storage device mainly comprises two parts, namely a phase-change heat storage material and a heat exchanger, the two parts act together to determine the comprehensive performance of the whole set of heat storage device, the phase-change heat storage material on the market at present is various and rich in variety, and is generally divided into three types of high, medium and low according to different heat storage temperature positions, the heat exchanger is used as a mature product, is various in variety and wide in application, but the heat exchanger used as the heat storage device currently has common problems, and due to the structure of the heat exchange tube and the structure of the liner, the heat exchange tube is difficult to uniformly arrange in the phase-change material, and in addition, due to the physical and chemical characteristics of the phase-change heat storage material, the heat exchange tube is often corroded and damaged. Therefore, there is a need to provide a high-efficiency phase-change heat storage device to solve the above-mentioned problems. Disclosure of utility model The utility model aims to overcome the defects of the prior art and provide a high-efficiency phase-change heat storage device so as to solve the problem that the heat exchange tubes in the prior art are difficult to uniformly arrange in phase-change materials, and the phase-change heat storage materials can cause corrosion damage to the heat exchange tubes. The utility model relates to a high-efficiency phase-change heat storage device which comprises a packaging unit, a liner unit, a heating medium unit and a heat storage material unit. The packaging unit comprises a shell and an insulating layer wrapped on the inner side of the shell, the inner container unit comprises an inner container, an inner container anti-corrosion layer arranged on the inner side of the inner container, an inner container sealing plate fixed on one side of the inner container, an inner container reinforcing rib arranged on the outer wall of the inner container, an inner container connecting flange for connecting the inner container and the inner container sealing plate and a support for supporting the inner container, the heating medium unit comprises a water inlet and outlet chamber cover, a water inlet pipe and a water outlet pipe connected with the water inlet and outlet chamber cover, a tube plate connected with the water inlet and outlet chamber cover through the flange, the water inlet and outlet chamber cover and the inner container, a tube plate anti-corrosion layer attached below the tube plate, a U-shaped heat exchange tube penetrating through the tube plate and the tube plate anti-corrosion layer, a tube clamp for fixing the U-shaped heat exchange tube and a tube clamp connecting piece for connecting the tube clamp, and the heat storage material unit comprises a filling tube, an exhaust tube and phase change heat storage material filled in a space surrounded by the inner container anti-corrosion layer and the tube plate anti-corrosion layer. The two ends of the U-shaped heat exchange tube penetrate through tube holes of the tube plate and the tube plate anti-corrosion layer respectively and are fixed on the tube plate through expansion joint or welding, the straight sections of the lower part of the U-shaped heat exchange tube are arranged at fixed intervals through a plurality of tube clamps and are connected and fixed through tube clamp connecting pieces, the inner container anti-corrosion layer and the tube plate anti-corrosion layer are both flu