CN-121977299-A - Efficient soil energy storage heat exchange device

Abstract

The invention discloses a high-efficiency soil energy storage heat exchange device which comprises a U-shaped metal heat exchange tube and a conical base, wherein a U-shaped groove of the base is formed in the conical base, the bottom of the U-shaped metal heat exchange tube is clamped in the U-shaped groove of the base, a fixing plate is covered on the conical base, the fixing plate is used for limiting and fixing the clamped U-shaped metal heat exchange tube, the center of the conical base is connected with a base through fixing bolt, a through hole matched with the base through fixing bolt is formed in the conical base, a gasket and a screwing nut are sequentially sleeved on the base through the through fixing bolt after penetrating through the through hole, and the fixing plate is detachably and fixedly connected with the conical base through a fixing plate screw. The invention realizes expansion of the buried pipe depth of the geothermal well, simultaneously adapts to the requirements of heat storage of high temperature waste heat and solar energy in seasons and cold storage in winter, and solves the problem of system heat exchange efficiency attenuation caused by soil cold and heat unbalance.

Inventors

• ZHAO ZONGBO
• LU ZHAOHUA
• WANG XIAOGONG
• LI JIE
• ZHAO FANGZHOU

Assignees

• 青岛新欧亚能源有限公司

Dates

Publication Date

20260505

Application Date

20260326

Claims (6)

1. 1. The utility model provides a high-efficient soil energy storage heat transfer device, includes U type metal heat exchange tube (1) and toper base (2), its characterized in that, base U type groove (4) have been seted up on toper base (2), U type metal heat exchange tube (1) bottom cartridge in base U type groove (4), toper base (2) upper cover has fixed plate (3), fixed plate (3) are spacing fixed to U type metal heat exchange tube (1) formation after the cartridge.
2. 2. The efficient soil energy storage heat exchange device according to claim 1, wherein a base through fixing bolt (5) is connected to the center of the conical base (2), a through hole matched with the base through fixing bolt (5) is formed in the conical base (2), a gasket (7) and a screwing nut (8) are sequentially sleeved on the base through fixing bolt (5) after penetrating through the through hole, the fixing plate (3) is detachably and fixedly connected with the conical base (2) through a fixing plate screw (9), and a device lifting hole (6) is formed in the upper end of the base through fixing bolt (5).
3. 3. The efficient soil energy storage heat exchange device according to claim 1, wherein the U-shaped metal heat exchange tube (1) is in a single U-shaped, double U-shaped, tri-U-shaped or tetra-U-shaped structure.
4. 4. A high efficiency soil energy storage heat exchange device according to claim 1, wherein the U-shaped metal heat exchange tube (1) has a length of 80-250m and is adapted to be installed in a geothermal well having a wellhead diameter of 130-300 mm.
5. 5. A high efficiency soil energy storage heat exchange device according to claim 1, wherein the working medium temperature adaptation range in the U-shaped metal heat exchange tube (1) is-40 ℃ to 100 ℃.
6. 6. The efficient soil energy storage heat exchange device according to claim 2, wherein the lifting hole (6) is of a through hole structure, the shape of the fixing plate (3) is matched with the top end face of the conical base (2), and an avoidance groove matched with the U-shaped metal heat exchange tube (1) is formed.

Description

Efficient soil energy storage heat exchange device Technical Field The invention relates to the technical field of soil heat exchange, in particular to a high-efficiency soil energy storage heat exchange device. Background In the ground source heat pump system, the soil energy storage heat exchange device is a core component for realizing energy exchange between underground soil and ground buildings, the main stream is composed of PE U-shaped pipes matched with a buried pipe base, and cold and heat energy transfer is completed by vertically burying a geothermal well, so that the device is widely applied to energy supply systems for heating and refrigerating buildings. The heat exchange tubes of the existing soil energy storage heat exchange device are made of PE materials, so that the depth of the buried tubes of the geothermal well is limited and cannot adapt to high-temperature waste heat and solar heat storage requirements in a cross-season mode, meanwhile, only a single U structure and a double U structure are arranged, the heat exchange capacity of the single well is insufficient, the number of well drilling needs to be increased to meet load requirements, the occupied area is greatly increased, the construction conditions of urban dense building areas are difficult to adapt, in addition, soil cold and heat unbalance is easy to occur after long-term use, and the heat exchange efficiency of the system is attenuated. Based on the above, a high-efficiency soil energy storage heat exchange device is provided. Disclosure of Invention The invention aims to solve the problems, and provides a high-efficiency soil energy storage heat exchange device. In order to achieve the above purpose, the present invention adopts the following technical scheme: The utility model provides a high-efficient soil energy storage heat transfer device, includes U type metal heat exchange tube and toper base, the base U type groove has been seted up on the toper base, U type metal heat exchange tube bottom cartridge in the base U type inslot, the toper base upper cover has the fixed plate, the fixed plate forms spacing fixedly to the U type metal heat exchange tube after the cartridge. Preferably, the conical base center is connected with a base through fixing bolt, a through hole matched with the base through fixing bolt is formed in the conical base, a gasket and a screwing nut are sequentially sleeved behind the through hole through the base through fixing bolt, the fixing plate is detachably and fixedly connected with the conical base through a fixing plate screw, and the upper end of the base through fixing bolt is connected with a device lifting hole. Preferably, the U-shaped metal heat exchange tube has a structure form of a single U-shape, a double U-shape, a tri-U-shape or a tetra-U-shape. Preferably, the length of the U-shaped metal heat exchange tube is 80-250m, and the device is suitable for being installed in a geothermal well with the diameter of a wellhead of 130-300 mm. Preferably, the working medium temperature in the U-shaped metal heat exchange tube is in a range of-40 ℃ to 100 ℃. Preferably, the device lifting hole is of a through hole structure, the shape of the fixing plate is matched with the top end face of the conical base, and the fixing plate is provided with an avoidance groove matched with the U-shaped metal heat exchange tube. In summary, due to the adoption of the technical scheme, the beneficial effects of the invention are as follows: 1. according to the application, the U-shaped heat exchange tube made of metal is adopted, so that the pressure bearing and temperature resistance limitation of the traditional PE tube is broken through, the expansion of the buried pipe depth of the geothermal well is realized, meanwhile, the requirements of heat storage in seasons and cold storage in winter of high-temperature waste heat and solar energy are adapted, and the problem of heat exchange efficiency attenuation of a system caused by cold and heat unbalance of soil is solved. 2. According to the application, the metal heat exchange tube with the multi-U-shaped structure is adopted, so that the heat exchange capacity of a single well is greatly improved, the well digging quantity required by meeting the load demand is reduced, the occupied area of the device is effectively reduced, and the geothermal well construction condition of a dense urban building area is adapted. Drawings Fig. 1 shows a schematic side view of a heat exchange device according to an embodiment of the present invention; fig. 2 shows a schematic top view of a heat exchange device according to an embodiment of the present invention. Reference numerals illustrate: 1. U-shaped metal heat exchange tubes, 2, conical bases, 3, fixing plates, 4, U-shaped grooves of the bases, 5, through fixing bolts of the bases, 6, device hoisting holes, 7, gaskets, 8, nuts, 9 and fixing plate screws. Detailed Description The following description of the embodim