Heat exchange component jacketing machine of soil cold and heat storage system

Abstract

The invention relates to a jacketing machine for a heat exchange component of a soil cold and heat storage system. The jacketing machine is characterized by comprising a winch, a protective pipe with a turnover anti-drag chassis, a water supply pipe, a water supply source and a control system. The turnable anti-drag chassis comprises a plurality of chassis fragments which are equally divided according to the 360-degree circumferential angle, and the chassis fragments are connected with the bottom end of the protective pipe through a one-dimensional rotating pair mechanism. The bottom surface of the turnable anti-drag chassis is an anti-drag surface and comprises a plurality of outlet holes; the outlet holes are communicated with a water supply source through a water supply network and a water supply pipe. The sling is put down the protection pipe, water flows out of the outlet holes, the soil on the drag reduction surface is slurried through water outflow, and a fluid thin layer is formed between the soil boundary and the drag reduction surface; the resistance of the fluid thin layer to the protective pipe is extremely weak, and the protective pipe is formed under the action of the gravity of the protective pipe and conveys the heat insulation sleeve to a designated position; then the outlet hole stops discharging water, so that the winch is paused; and the heat insulation sleeve is fixedly connected with the heat exchange component, and finally the winch pulls up the protection pipe to return.

Description

Technical Field

[0001] This invention relates to the technical field of a heat exchange component casing machine for a soil cold and heat storage system. Background Technology

[0002] Soil-based cooling and heating systems are still a relatively new technology that has just emerged from the laboratory. The control of heat loss in soil-based cooling and heating systems requires the invention of more new technologies. Summary of the Invention

[0003] One of the objectives of this invention is to provide a method for heat preservation in a soil-based cold and heat storage system.

[0004] The present invention discloses a method for heat preservation of a soil cold and heat storage system: A soil cold and heat storage system is constructed, comprising heat exchange components extending deep into the soil, a main pipe connecting the heat exchange components, and soil. A heat exchange medium is injected into the heat exchange components, and heat is exchanged with the soil through the heat exchange medium. An insulation layer is provided on the uppermost section of the heat exchange components. The soil layer containing the insulation layer has a weak capacity for cold and heat storage. Thus, an isolation layer is formed between the soil cold and heat storage system and the ground surface, and the isolation layer reduces the heat conduction from the soil cold and heat storage system to the ground.

[0005] In one possible design, the thickness of the isolation layer is more than 2 meters.

[0006] Beneficial effects: Due to the presence of the isolation layer, the present invention reduces the heat loss of the soil cold and heat storage system, achieving a heat preservation effect similar to that of laying an insulation material layer on top of the soil cold and heat storage system; however, the heat preservation capacity obtained by setting the isolation layer in this embodiment does not require excavating the soil above the soil cold and heat storage system, laying insulation material, and then backfilling the soil, thus saving more than 90% in terms of engineering volume and material costs.

[0007] The present invention is environmentally friendly and compatible with existing ground facilities, including structures, and the isolation layer is insensitive to changes in the surface condition. Attached Figure Description

[0008] Figure 1 This is a schematic diagram of a soil insulation layer formed by setting an insulating sleeve on the heat exchange components of a soil cold and heat storage system; Figure 2 This is a schematic diagram of the working principle of a gravity-driven soil cold and heat storage system heat exchange component casing machine; Figure 3 , 4 These are top views of a tiltable, drag-reducing chassis in its closed and tilted-down states, respectively. Figure 5 , 6 These are cross-sectional structural diagrams of a tiltable, drag-reducing chassis when it is closed and when it is tilted down.

[0009] In the diagram: 1. Heat exchanger; 2. Main pipe; 3. Soil; 4. Insulation sleeve; 5. Isolation layer; 6. Winch; 7. Protective pipe; 8. Water supply pipe; 9. Water supply source; 10. Engineering vehicle; 11. Frame; 12. Chassis segment; 13. One-dimensional rotating pair mechanism; 14. Roller; 15. Cable hole; 16. Cable; 17. Spring plate; 18. Drag-reducing surface; 19. Outlet hole; 20. Lifting cable; 21. Connector; 22. Boundary; 23. Fluid thin layer. Detailed Implementation

[0010] A second objective of this invention is to provide a soil-based cold and heat storage system with an insulation layer. This objective includes... Figure 1 The given Example 1 is implemented.

[0011] Example 1: Construct a soil cooling and heating system, including a U-shaped well pipe heat exchanger 1 that extends deep into the soil, a main pipe 2 connecting the heat exchanger 1 and the soil 3, and a heat exchanger 1 filled with a heat medium to exchange heat with the soil through the heat medium. An insulation layer is provided on the top section of the heat exchange element 1, and an insulation sleeve 4 is connected to it; the soil layer where the insulation sleeve is located has a weak ability to participate in cold and heat storage; thus, an isolation layer 5 is formed between the soil cold and heat storage system and the ground surface; the isolation layer reduces the heat conduction of the soil cold and heat storage system to the ground.

[0012] The length of the insulating sleeve 4 includes 1.1 to 2 times the average heat exchange radius of the heat exchange element 1 in the soil, and is not less than 1 meter; the thicker the isolation layer 5, the smaller its temperature gradient value. If the ground is a cultivated layer, the thickness of the isolation layer can be measured from the plow pan.

[0013] The beneficial effects of Example 1: The isolation layer with a thickness of more than 1 meter greatly reduces the temperature difference between the boundary of the soil cold and heat storage system and the outside world, which can achieve the purpose of significantly reducing the heat loss of the soil cold and heat storage system.

[0014] The third objective of this invention is to provide a casing machine for heat exchange components in a soil cold and heat storage system.

[0015] This objective of the present invention is achieved by manufacturing a heat exchange component casing machine for a soil storage and cooling system, comprising a winch, a protective pipe with a tiltable and drag-reducing chassis, a water supply pipe, a water supply source, and a control system. The tiltable drag-reducing chassis consists of several chassis segments evenly divided at 360-degree circumference. The chassis segments are connected to the bottom of the protective tube through a one-dimensional rotating joint mechanism. The tiltable drag-reducing chassis has two stable states: 1) the closed state when all chassis segments are closed; 2) the passable state when all chassis segments are tilted down. The bottom surface of the tiltable drag-reducing chassis is a drag-reducing surface, which includes several outlets; the outlets are connected to the water supply source through the water supply network and water supply pipes; With the tiltable drag-reducing chassis in the closed position, the slings lower the protective pipe and water flows from each outlet. The water slurries the soil on the drag-reducing surface, causing the soil boundary to be eroded and continuously retreat, forming a thin fluid layer between the soil boundary and the drag-reducing surface. This fluid layer offers very little resistance to the protective pipe, which, under its own weight, forms and delivers the insulation sleeve to the designated position. Then... The control system host commands the outlet to stop water flow and the winch to pause; it then fixes the insulation sleeve to the heat exchange components, including filling the gap between the insulation sleeve and the heat exchange components with foaming agent; finally, it puts the tiltable drag-reducing chassis in the closed state and commands the winch to pull up the protective pipe and return it.

[0016] In one possible design, the tiltable drag-reducing chassis is replaced by a fixed chassis, the bottom surface of which is a drag-reducing surface and includes several outlets; the outlets are connected to the water supply source through a water supply network and water supply pipes. The fixed base is connected to the protective pipe without plugging or unplugging; when the protective pipe is pulled up, it is directly detached from the fixed base; the fixed base remains on site, including serving as a weight to connect with and hold the insulation sleeve.

[0017] Figures 2-6 Example 2 is given.

[0018] Example 2: A casing machine for heat exchange components in a soil cold and heat storage system is manufactured, including a winch 6, a protective pipe 7 with a tiltable drag-reducing chassis, a water supply pipe 8, a water supply source 9, and a control system. The casing machine is mounted on an engineering vehicle 10; the engineering vehicle includes a frame 11. The tiltable drag-reducing chassis comprises eight chassis segments 12 evenly divided at 360-degree circumference. Each chassis segment is connected to the bottom of the protective tube via a one-dimensional rotary joint mechanism 13. The movable end of each chassis segment includes a roller 14, the surface of which matches the surface of the heat exchange element 1 it contacts. Each chassis segment includes a cable hole 15, and a cable 16 passes through the cable holes of each chassis segment to merge all chassis segments into one unit. One end of the cable 15 extends to the top of the protective tube and is fixed, maintaining the tiltable drag-reducing chassis in its closed state. The chassis segments 11 and the bottom of the protective tube are connected by a spring plate 17. When all chassis segments are merged into one unit, the spring plate 16 is bent; at this time, the spring plate 16 possesses the potential energy to tilt the chassis segments down.

[0019] The bottom surface of the tiltable drag-reducing chassis is a drag-reducing surface 18, which includes several outlet holes 19; the outlet holes are connected to the water supply source through the water supply network and water supply pipe.

[0020] Working principle of Example 2: The mobile engineering vehicle is positioned directly above the heat exchanger 1; the winch is connected to the protective pipe 7 with a tiltable drag-reducing chassis via a sling 20; an insulating sleeve 4 is inserted into the protective pipe; a connector 21 passes through the insulating sleeve 4; the connector may be a steel wire rope or a rod; the upper end of the connector is connected to the frame and its position can be adjusted; the lower end of the connector is connected to the interface of the heat exchanger 1. A force of 0.5–3 kg is applied to the heat exchanger by the connector to make the heat exchanger stand upright. The sling is lowered into the protective pipe and water is discharged from each outlet. The water discharge causes the soil at the drag-reducing surface to become slurry. The boundary 22 of the soil 3 is washed away and continuously retreats by the water discharge, forming a fluid thin layer 23 between the soil boundary and the drag-reducing surface. The fluid thin layer has very weak resistance to the protective pipe. The protective pipe is formed under its own gravity and sends the insulation sleeve to the designated position. The control system host commands the outlet to stop water discharge and the winch to stop; the insulation sleeve is fixedly connected to the heat exchange components, including filling the gap between the insulation sleeve and the heat exchange components with foaming agent. Then, release cable 16, and each chassis segment will be in a flipped-down state under the action of the spring plates. Figure 2 The two vertical double dashed lines in the middle and Figure 4 and Figure 6 As shown; The winch is then used to pull up the protective pipe and return it to its original position, thus completing the task of attaching the insulation sleeve.

[0021] In one possible design, the insulation sleeve is not inserted when the protective tube sinks into the soil; once the protective tube has sunk to the correct position, the mud inside the protective tube is vacuumed out using an industrial vacuum cleaner; then the insulation sleeve is lowered and fixedly connected to the heat exchange components, and the protective tube is then returned to its original position.

[0022] In one possible design, the chassis segments of the tilting drag-reducing chassis are closed and tilted down in other ways, including using electric latches to keep the chassis segments closed and using the weight of each chassis segment to tilt them down. With each chassis segment tilted down, the tilting drag-reducing chassis is in a passable state—allowing the insulation sleeve to pass through the tilting drag-reducing chassis.

[0023] In one possible design, the heat exchange components are those used in the construction of drill bit drilling facilities.

Claims

1. A casing machine for heat exchange elements of a soil thermal storage system, characterized in that It includes a winch, a protective pipe with a tiltable drag-reducing chassis, a water supply pipe, a water supply source, and a control system; The tiltable drag-reducing chassis consists of several chassis segments evenly divided at 360-degree circumference. The chassis segments are connected to the bottom of the protective tube through a one-dimensional rotating joint mechanism. The tiltable drag-reducing chassis has two stable states: 1) the closed state when all chassis segments are closed; 2) the passable state when all chassis segments are tilted down. The bottom surface of the tiltable drag-reducing chassis is a drag-reducing surface, which includes several outlets; the outlets are connected to the water supply source through the water supply network and water supply pipes; The slings are lowered into the protective casing, and water is released from each outlet. The water causes the soil at the drag-reducing surface to slurry up, and the soil boundary is eroded and dispersed by the water, continuously retreating, forming a thin fluid layer between the soil boundary and the drag-reducing surface. This thin fluid layer offers very little resistance to the protective casing, which, under its own weight, forms and delivers the insulation sleeve to the designated position. Then... The control system main unit commands the outlet to stop water flow and the winch to pause; it then securely connects the insulation sleeve to the heat exchange components, including filling the gaps between the insulation sleeve and the heat exchange components with foaming agent; then... Instruct the winch to pull up the protective pipe and return it.

2. The heat exchanger element sleeving machine of the regenerative thermal storage system according to claim 1, characterized in that The chassis segment includes a cable hole, and a cable is used to connect the cable holes of each chassis segment to make all chassis segments close together as one; one end of the cable leads to the top of the protective tube and is tightened and fixed to maintain the closed state of the flip-up and drag-reducing chassis. The chassis segments and the bottom of the protective tube are connected by a spring plate; when all chassis segments are combined into one, the spring plate is bent; when the cable is released, each chassis segment flips down under the action of the spring plate, and the flip-down drag-reducing chassis is in a passable state.

3. The heat pipe of claim 1, wherein When the protective pipe sinks into the soil, the insulation sleeve is not placed in first; after the protective pipe has sunk into place, the mud inside the protective pipe is sucked out with an industrial vacuum cleaner; then the insulation sleeve is lowered and fixedly connected to the heat exchange components, and then the protective pipe is returned.

4. The heat exchanging element casing machine for an earth coupled cooling and heating system according to claim 1 or 2 or 3, wherein The heat exchange components are those used in the construction of drilling facilities.

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