Closed geothermal heat exchange device

Abstract

The utility model relates to the technical field of terrestrial heat exchange, in particular to a closed terrestrial heat exchange device which comprises a base, a heat exchanger, protective shells, clamping plates and a pulling mechanism, the heat exchanger is movably placed on the top of the base, the protective shells are arranged on the two sides of the top of the base in a sliding mode, and the clamping plates are arranged on the inner sides of the protective shells on the two sides. The clamping plates on the two sides are clamped to the outer side of the heat exchanger, and a pulling mechanism used for pulling the protective shells on the two sides is arranged at the bottom of the base. Through the arrangement of the pulling mechanism, the protective shell can be quickly opened by rotating a knob in the forward direction, the heat exchanger can be conveniently maintained and overhauled, and the working efficiency is improved; physical isolation is provided through closing of the protective shell, and the protective effect of the outer surface of the heat exchanger is improved; the clamping plates clamp the heat exchanger when the protective shell is closed, it is ensured that the heat exchanger does not displace in the using process, and the working stability is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of geothermal heat exchange, and particularly relates to a closed geothermal heat exchange device. Background Technique

[0002] A geothermal heat exchange device is a device that utilizes the heat energy inside the earth and converts it into available heat energy. Through the heat exchange between geothermal resources and working fluids, this device can be used for various purposes such as heating and cooling. Geothermal heat exchange devices are mainly divided into two types: open type and closed type.

[0003] A closed geothermal heat exchange device is a common form of geothermal energy utilization. It exchanges heat with geothermal resources through a pipeline network buried underground. This device is usually used in a ground-source heat pump system to achieve heating and cooling of buildings.

[0004] Maintenance and repair of traditional closed geothermal heat exchange devices are often cumbersome. Usually, complex tools are required for manual operation to complete the replacement of the heat exchanger. Moreover, when a general heat exchanger is installed as a whole, it is directly placed on the ground surface. In special cases, it may not effectively prevent external environmental factors (such as dust, rain, etc.), resulting in an impact on the surface of the heat exchanger. Especially when an operator repairs the position below the inlet end of the heat exchanger, due to insufficient protective measures on the outer surface of the heat exchanger, the operator may come into contact with high-pressure fluids and face certain operation risks. Content of the Utility Model

[0005] In order to overcome the above-mentioned shortcomings of the prior art, the utility model provides a closed geothermal heat exchange device that is easy to maintain.

[0006] The technical solution of the utility model is: a closed geothermal heat exchange device, which includes a base, a heat exchanger, a protective shell, a clamping plate, and a pulling mechanism. The heat exchanger is movably placed on the top of the base. The protective shells are slidably arranged on both sides of the top of the base. Clamping plates are arranged on the inner sides of both protective shells, and both clamping plates clamp the outer side of the heat exchanger. A pulling mechanism for pulling both protective shells is arranged at the bottom of the base.

[0007] Furthermore, the end faces of the adjacent sides of both clamping plates are adapted to the outer wall of the heat exchanger.

[0008] Further, the pulling mechanism includes: a limit sleeve, a mounting cover, a screw rod, a sleeve, a fixing member, a rotating rod, a knob, and bevel gears. Limit sleeves are slidably provided on both sides of the bottom of the base. The upper parts of the two limit sleeves are connected to the lower part of the protective shell above them. A mounting cover is provided at the center of the bottom of the base. Screw rods are rotatably provided on both sides of the mounting cover and penetrate through it. Sleeves are threadedly provided on the outer sides of the screw rods, and the sleeves are all connected to the adjacent limit sleeves. A fixing member is provided on the front side of the bottom of the base. A rotating rod is rotatably provided inside the fixing member. The rear end of the rotating rod rotates and penetrates through the inside of the mounting cover. A knob is provided at the front end of the rotating rod. Bevel gears are rotatably provided at the adjacent ends of all the screw rods and the rotating rod. The bevel gears at the ends of the two screw rods are all rotatably meshed with the bevel gears at the ends of the adjacent rotating rods.

[0009] Further, the rotating rod and the screw rod form a three-way symmetric distribution state.

[0010] Further, it further includes support legs, and support legs are symmetrically provided at the bottom of the base.

[0011] Further, anti-slip pads are provided at the bottoms of the support legs.

[0012] Compared with the prior art, the present utility model has the following advantages: With the setting of the pulling mechanism, by rotating the knob in the forward direction, the protective shell can be quickly opened, facilitating the maintenance and repair of the heat exchanger and improving work efficiency; and it provides physical isolation for the closure of the protective shell, increasing the protective effect on the outer surface of the heat exchanger; the clamping plate clamps the heat exchanger when the protective shell is closed, ensuring that the heat exchanger does not displace during use and improving work stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a three-dimensional structural schematic diagram of the present utility model.

[0014] Figure 2 It is a three-dimensional structural schematic diagram of the present utility model with the protective shells on both sides opened.

[0015] Figure 3 It is a three-dimensional structural schematic diagram of components such as the protective cover, clamping block, and rubber pad of the present utility model.

[0016] Figure 4 It is a three-dimensional structural schematic diagram of components such as bevel gears, screw rods, and telescopic rods of the present utility model.

[0017] Figure 5 It is a three-dimensional structural schematic diagram of the present utility model.

[0018] Figure 6 It is a three-dimensional structural schematic diagram of the present utility model.

[0019] Description of reference numerals: 1, base; 2, heat exchanger; 3, protective shell; 31, clamping plate; 4, pulling mechanism; 41, limiting sleeve; 5, mounting cover; 6, screw rod; 7, sleeve; 8, fixing member; 9, rotating rod; 10, knob; 11, bevel gear; 12, support leg. Detailed implementation manners

[0020] The present utility model will be further described below in conjunction with the accompanying drawings and embodiments.

[0021] Embodiment: A closed geothermal heat exchange device, as Figures 1 - 6 shown, includes a base 1, a heat exchanger 2, a protective shell 3, a clamping plate 31 and a pulling mechanism 4. The base 1 is the basic support structure of the whole device. The heat exchanger 2 is movably placed on the top of the base 1. The heat exchanger 2 is connected to a ground source heat pump system to realize the exchange and utilization of geothermal energy. The protective shells 3 are slidably arranged on both sides of the top of the base 1 to protect the heat exchanger 2 from the influence of the external environment and facilitate inspection and maintenance. Clamping plates 31 are arranged on the inner sides of the two protective shells 3 through screws. The two clamping plates 31 are both clamped on the outer side of the heat exchanger 2. The end faces of the two clamping plates 31 on the adjacent sides are both adapted to the outer wall of the heat exchanger 2 to ensure that the heat exchanger 2 will not be displaced during use and improve the working stability. A pulling mechanism 4 for pulling the two protective shells 3 is arranged at the bottom of the base 1.

[0022] As Figures 1 - 2 and Figures 4 - 6As shown, the pulling mechanism 4 includes: a limit sleeve 41, a mounting cover 5, a screw rod 6, a sleeve 7, a fixing member 8, a rotating rod 9, a knob 10, and a bevel gear 11. Limit sleeves 41 are slidably arranged on both sides of the bottom of the base 1. The upper parts of the two limit sleeves 41 are connected to the lower part of the protective shell 3 above them. A mounting cover 5 is provided at the center of the bottom of the base 1 by screws. The mounting cover 5 serves to fix and protect the internal mechanical components, and at the same time provides a space for the end of the screw rod 6 to rotate. The screw rods 6 are rotatably arranged through both sides of the mounting cover 5. Sleeves 7 are threadedly arranged on the outer sides of the screw rods 6. The sleeves 7 are all connected to the adjacent limit sleeves 41. The sleeves 7 move axially under the drive of the screw rods 6, thereby driving the limit sleeves 41 and the protective shell 3 to move synchronously. A fixing member 8 is provided on the front side of the bottom of the base 1. The inner side of the fixing member 8 is rotatably provided with a rotating rod 9 through a bearing. The fixing member 8 provides support and positioning for the rotating rod 9 to ensure the stable rotation of the rotating rod 9. The rear end of the rotating rod 9 is rotatably arranged through the inner side of the mounting cover 5. The rotating rod 9 serves as the central component for power transmission and drives the operation of the entire pulling mechanism 4 through the operation of the knob 10. The front end of the rotating rod 9 is provided with a knob 10 through a fastener. The pulling mechanism 4 is started by rotating the knob 10 to open and close the protective shell 3. Bevel gears 11 are rotatably arranged at the adjacent ends of all the screw rods 6 and the rotating rod 9. And the bevel gears 11 at the ends of the two screw rods 6 are all rotatably meshed with the bevel gears 11 at the ends of the adjacent rotating rod 9. Under the action of the bevel gears 11, the rotation of the rotating rod 9 drives the rotation of the screw rods 6, so as to realize the movement of the sleeves 7, and then the protective shell 3 can be driven to slide on the base 1. The rotating rod 9 and the screw rods 6 form a three-way symmetric distribution state, ensuring the balance and symmetry of the pulling mechanism 4 during operation, so that the protective shell 3 can be opened or closed smoothly and evenly.

[0023] As Figures 1 - 2 shown, it further includes support legs 12. Support legs 12 are symmetrically and fixedly arranged at the bottom of the base 1 to improve the stability and safety of the device and ensure that it can be stably placed under different terrain conditions. Anti-slip pads are provided at the bottoms of the support legs 12 to prevent the device from sliding during use, especially on wet or uneven ground.

[0024] Before use, the base 1 needs to be placed on the heat exchange installation point installed in the ground source heat pump system, and then the heat exchanger 2 is placed aside, and then the knob 10 on the front side of the bottom of the base 1 is twisted forward. When the knob 10 is twisted and rotated, it will drive the rotating rod 9 connected to it to rotate forward, and when the rotating rod 9 rotates forward, it will drive the bevel gear 11 at its end to rotate forward. When the bevel gear 11 at the end of the rotating rod 9 rotates forward, the bevel gears 11 at the ends of the other two screw rods 6 meshing with it are driven to rotate forward. Similarly, when the two screw rods 6 are meshed, the bevel gears 11 at the ends of the screw rods 6 are meshed with the bevel gears 11 at the ends of the screw rods 6 are meshed with the bevel gears 11 at the ends of the screw rods 6. When the bevel gear 11 on the screw 6 rotates in the forward direction, the screw 6 itself is also driven to rotate in the forward direction in the mounting cover 5, so that the sleeve 7 connected to the screw 6 cooperates with its thread and moves outward along the thread direction, and the limit sleeve 41 connected to the sleeve 7 moves synchronously with it. When the limit sleeves 41 at both locations are driven and move outward to the maximum limit distance, the knob 10 is stopped from being twisted, and the above-mentioned components will stop operating at the same time. During the movement of the limit sleeve 41, the protective shell 3 connected to it at the lower part will also be driven to move, so that The protective shell 3 slides outward on the top of the base 1, and then the protective shell 3 and the base 1 in the closed cavity state are no longer closed, and form an open state. Then the heat exchanger 2 placed aside can be placed in the center of the top of the base 1, and at this moment, the knob 10 is reversed, and the latter part will repeat the above-mentioned operation in the opposite direction until the protective shells 3 at the two places slide and close on the base 1 again. When the protective shell 3 is in the closed state, the clamping plate 31 inside the protective shell 3 that was previously in the reset sliding state will be pressed against the outside of the heat exchanger 2 when the protective shell 3 slides. The heat exchanger 2 is fixed on the side by clamping, and when the protective shells 3 at the two places are closed, the upper end close to the two will also fix the inlet end of the heat exchanger 2, thereby completing the shielding and fixed protection of the heat exchanger 2 as a whole. Finally, when the heat exchanger 2 needs to be used to connect the heat exchange pump system, the heat exchange pipe joint can be connected to the inlet end of the heat exchanger 2. The above is to complete the maintenance work on the heat exchanger 2; and when the surface of the heat exchanger 2 and the inlet end thereof need to be inspected, the knob 10 is rotated forward to open the protective shell 3 on the base 1.

[0025] The above description is only an example of the implementation of the present invention and is not intended to limit the present invention. Any equivalent replacement made within the principle of the present invention shall be included in the protection scope of the present invention. The contents not elaborated in the present invention belong to the existing technology known to the technicians in this professional field.

Claims

1. A closed geothermal heat exchange device, characterized in that, It includes a base (1), a heat exchanger (2), a protective shell (3), a clamping plate (31) and a pulling mechanism (4). The heat exchanger (2) is movably placed on the top of the base (1). The protective shells (3) are slidably arranged on both sides of the top of the base (1). Clamping plates (31) are arranged on the inner sides of the two protective shells (3). The two clamping plates (31) are both clamped on the outer side of the heat exchanger (2). A pulling mechanism (4) for pulling the two protective shells (3) is arranged at the bottom of the base (1).

2. The closed geothermal heat exchange device according to claim 1, characterized in that, The end faces of the adjacent sides of the two clamping plates (31) are all adapted to the outer wall of the heat exchanger (2).

3. The closed geothermal heat exchange device according to claim 2, characterized in that, The pulling mechanism (4) includes: a limit sleeve (41), a mounting cover (5), a screw rod (6), a sleeve (7), a fixing member (8), a rotating rod (9), a knob (10) and bevel gears (11). Limit sleeves (41) are slidably arranged on both sides of the bottom of the base (1). The upper parts of the two limit sleeves (41) are connected to the lower parts of the protective shells (3) above them. A mounting cover (5) is arranged at the middle position of the bottom of the base (1). Screw rods (6) are rotatably arranged on both sides of the mounting cover (5) and penetrate through it. Sleeves (7) are threadedly arranged on the outer sides of the screw rods (6). The sleeves (7) are all connected to the adjacent limit sleeves (41). A fixing member (8) is arranged on the front side of the bottom of the base (1). A rotating rod (9) is rotatably arranged inside the fixing member (8). The rear end of the rotating rod (9) rotates and penetrates through the inside of the mounting cover (5). A knob (10) is arranged at the front end of the rotating rod (9). Bevel gears (11) are rotatably arranged at the adjacent ends of all the screw rods (6) and the rotating rod (9). And the bevel gears (11) at the ends of the two screw rods (6) are all rotatably meshed with the bevel gears (11) at the ends of the adjacent rotating rods (9).

4. The closed geothermal heat exchange device according to claim 3, characterized in that, The rotating rod (9) and the screw rods (6) form a three-way symmetric distribution state.

5. The closed geothermal heat exchange device according to claim 4, characterized in that, It further includes support legs (12). Support legs (12) are symmetrically arranged at the bottom of the base (1).

6. The closed geothermal heat exchange device according to claim 5, characterized in that, Anti-slip pads are provided at the bottoms of the support legs (12).

Images