Freezing device for freezing method construction

Abstract

The utility model provides a freezing device for freezing construction, the freezing device for freezing construction comprises a freezing station and a plurality of freezing pipe bodies, one side of each freezing pipe body is fixedly connected with one side of the freezing station, cooling liquid is conveyed to the inside of a mounting pipe through the cooling station, and the freezing pipe bodies are connected with the freezing station. Cooling liquid enters the freezing pipe during conveying, at the moment, the cooling liquid spirally flows in the moving process, the contact area of the cooling liquid under the ground can be increased, and the contact time of the cooling liquid under the ground can be prolonged; the cooling liquid with the high temperature in the backflow pipe cannot affect the cooling liquid with the low temperature in the freezing pipe, when the device is used, the contact time and the contact area of the cooling liquid and the land are increased through the spirally-installed freezing pipe, the freezing efficiency is improved, the influence of the backflow liquid on the cooling liquid is avoided through the vacuum groove, and the cooling efficiency is improved. The heat exchange efficiency is further improved, the heat exchange period is shortened, and the construction progress is accelerated.

Description

Technical Field

[0001] This utility model relates to the field of refrigeration equipment technology, and in particular to a refrigeration equipment for refrigeration construction. Background Technology

[0002] Freezing equipment for construction using the freezing method is a refrigeration device used in civil engineering. It forms a frozen soil curtain by artificially freezing ground moisture, temporarily reinforcing weak strata and blocking groundwater. The core components include a refrigeration system (compressor, condenser, etc.), circulation pipelines (transporting low-temperature brine or liquid nitrogen), and freezing pipes in the strata. It is supplemented by a monitoring system to control the freezing effect. It is suitable for scenarios such as subway tunneling, deep foundation pits, and mines. It is divided into two types: brine freezing (economical and long-lasting) and liquid nitrogen freezing (rapid emergency). It ensures construction safety under complex geological conditions.

[0003] In existing technology, the device typically includes a refrigeration station, connecting pipes, and multiple freezing pipes. During installation, the multiple freezing pipes are connected to the refrigeration station via the connecting pipes. The refrigeration station cools the coolant and delivers it to the connecting pipes. A return pipe is also installed inside each freezing pipe. The coolant passes through the connecting pipes to freeze the pipes, releasing heat within them. The return pipes then guide the cooled coolant back to the connecting pipes, which in turn guide it back to the refrigeration station for cooling and circulation. The freezing pipes are inserted into the ground to freeze areas with high water content. After freezing, the outer wall of the freezing pipe needs to be filled with concrete to allow it to contact the ground and absorb heat more easily. Once freezing is complete, excavation can begin, and underground construction can commence. In practical use, although this device can effectively freeze the ground to facilitate excavation, the heat exchange efficiency of the freezing pipe is low when it only contacts the ground for heat transfer. Furthermore, when the return pipe carries the heated coolant back, it may affect the freezing pipe, causing the coolant temperature inside the freezing pipe to rise and reducing the device's heat exchange efficiency.

[0004] Therefore, it is necessary to provide a new refrigeration device for refrigeration construction to solve the above-mentioned technical problems. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model provides a freezing device for freezing construction.

[0006] The present invention provides a freezing device for freezing construction, comprising: a freezing station and multiple freezing pipe bodies, wherein one side of each of the multiple freezing pipe bodies is fixedly connected to one side of the freezing station;

[0007] The freezing tube body includes: an installation tube, a return tube, a freezing tube, and a flow converter. The freezing tube is spirally wrapped around the outside of the return tube. Both the freezing tube and the return tube are fixedly installed on the inner side wall of the installation tube. A conveying groove is provided on the freezing tube, and a return groove is provided on the return tube. One side of the flow converter is fixedly connected to one side of the freezing tube. The side of the flow converter away from the freezing tube passes through the return tube. The side of the installation tube away from the flow converter is fixedly connected to one side of the freezing station. A vacuum groove is provided on the return tube.

[0008] Preferably, the cross-sections of the freezing tube, the reflux tube, and the mounting tube are all circular.

[0009] Preferably, the outer wall of the mounting tube is in contact with the inner wall of the mounting tube.

[0010] Preferably, the refrigeration station includes: a refrigeration station body, a conveying pipe, and a fixing component. One side of the refrigeration station body is fixedly connected to one side of the conveying pipe. The side of the mounting pipe away from the serial head is fixedly connected to one side of the fixing component. The side of the fixing component away from the mounting pipe is fixedly connected to one side of the conveying pipe.

[0011] Preferably, the fixing assembly includes: a first fixing plate, a second fixing plate, a plurality of fixing bolts and a plurality of fixing nuts. One side of the first fixing plate is fixedly connected to one side of the mounting tube, and one side of the second fixing plate is fixedly connected to one side of the conveying tube. The opposite sides of the first fixing plate and the second fixing plate are fitted together. The plurality of fixing bolts pass through the first fixing plate and the second fixing plate, and the plurality of fixing nuts are respectively fixedly installed on the outside of the plurality of fixing bolts.

[0012] Preferably, the diameters of both the first fixing plate and the second fixing plate are larger than one side of the mounting pipe and the conveying pipe.

[0013] Compared with related technologies, the freezing device for freezing construction provided by this utility model has the following beneficial effects:

[0014] In practical use, after drilling is completed, the installation pipe is installed underground. Coolant is supplied to the inside of the installation pipe through a cooling station. During transportation, the coolant enters the refrigeration pipe and flows in the delivery trough. Because the refrigeration pipe is spirally installed on the outside of the return pipe, the coolant flows in a spiral motion, which increases the contact area and contact time between the coolant and the ground. Furthermore, the outer wall of the refrigeration pipe fits snugly against the inner wall of the installation pipe, resulting in a tighter contact between the coolant and the ground during use. A vacuum trough is installed in the return pipe. During use, after the coolant has flowed through the refrigeration pipe, it enters the return trough through a flow head and returns to the refrigeration station. The higher temperature coolant in the return trough will not affect the lower temperature coolant in the refrigeration pipe. In use, the spirally installed refrigeration pipe increases the contact time and area between the coolant and the ground, accelerating the freezing efficiency. The vacuum trough prevents the return liquid from affecting the coolant, further accelerating the heat exchange efficiency, reducing the heat exchange cycle, and speeding up the construction progress. Attached Figure Description

[0015] Figure 1 A schematic diagram of the overall structure of a freezing device for freezing construction provided by this utility model;

[0016] Figure 2 A schematic diagram of the freezing pipe body structure of a freezing device for freezing construction provided by this utility model;

[0017] Figure 3 A schematic diagram of the internal structure of the freezing pipe body of a freezing device for freezing construction provided by this utility model;

[0018] Figure 4 A schematic diagram of the refrigeration tube structure provided by this utility model;

[0019] Figure 5 This is a cross-sectional view of the internal structure of the reflux pipe provided by this utility model.

[0020] The following are the labels in the diagram: 1. Installation pipe; 2. Return pipe; 3. Freezing pipe; 4. Flow head; 5. Conveying trough; 6. Return trough; 7. Vacuum tank; 8. Freezing station body; 9. Conveying pipe; 10. First fixed plate; 11. Second fixed plate; 12. Fixing bolt; 13. Fixing nut. Detailed Implementation

[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0022] Please refer to the following: Figure 1 , Figure 2 , Figure 3 , Figure 4 as well as Figure 5 ,in, Figure 1 A schematic diagram of the overall structure of a freezing device for freezing construction provided by this utility model; Figure 2 A schematic diagram of the freezing pipe body structure of a freezing device for freezing construction provided by this utility model; Figure 3 A schematic diagram of the internal structure of the freezing pipe body of a freezing device for freezing construction provided by this utility model; Figure 4 A schematic diagram of the refrigeration tube structure provided by this utility model; Figure 5 This is a cross-sectional view of the internal structure of the reflux pipe provided by this utility model.

[0023] In the specific implementation process, such as Figures 1-5 As shown, the present invention provides a freezing device for freezing construction, which includes a freezing station and multiple freezing pipe bodies, one side of the multiple freezing pipe bodies being fixedly connected to one side of the freezing station.

[0024] The freezing tube body includes: an installation tube 1, a return tube 2, a freezing tube 3, and a cross-flow head 4. The freezing tube 3 is spirally wrapped around the outside of the return tube 2. Both the freezing tube 3 and the return tube 2 are fixedly installed on the inner side wall of the installation tube 1. A conveying groove 5 is provided on the freezing tube 3, and a return groove 6 is provided on the return tube 2. One side of the cross-flow head 4 is fixedly connected to one side of the freezing tube 3. The side of the cross-flow head 4 away from the freezing tube 3 passes through the return tube 2. The side of the installation tube 1 away from the cross-flow head 4 is fixedly connected to the side of the freezing station. A vacuum groove 7 is provided on the return tube 2. The cross-sections of the freezing tube 3, the return tube 2, and the installation tube 1 are all circular. The outer side wall of the installation tube 1 is in contact with the inner side wall of the installation tube 1.

[0025] It should be noted that during use, after drilling is completed, the installation pipe 1 is installed underground. At this time, concrete is filled into the outer wall of the installation pipe to make the installation pipe 1 more tightly connected to the ground, thus accelerating the heat exchange efficiency. During use, coolant is supplied to the refrigeration pipe 3 through the refrigeration station. The coolant undergoes spiral motion through the delivery trough 5, which prolongs the contact time and increases the contact area between the coolant and the ground, improving heat exchange efficiency and accelerating the reaction speed. After completing its movement in the delivery trough 5, the coolant enters the return trough 6 through the flow head 4, and then returns to the refrigeration station through the return trough 6, completing the circulation. During the return flow of the coolant, the presence of a vacuum tank 7 inside the return pipe 2 prevents the coolant from affecting the coolant in the refrigeration pipe 3 during the return process. This avoids heat exchange between the coolant in the refrigeration pipe 3 and the returning coolant, further accelerating the heat exchange efficiency. Furthermore, the outer wall of the refrigeration pipe 3 is in close contact with the inner wall of the installation pipe 1, indirectly increasing the contact area between the refrigeration pipe 3 and the ground. This device accelerates the contact area and time between the coolant and the underground soil, and avoids the impact of the returning liquid on the new coolant, thus accelerating the heat exchange efficiency, reducing the construction period for frozen ground, and increasing work efficiency.

[0026] The refrigeration station includes: a refrigeration station body 8, a conveying pipe 9, and a fixing component. One side of the refrigeration station body 8 is fixedly connected to one side of the conveying pipe 9. The side of the mounting pipe 1 away from the serial head 4 is fixedly connected to one side of the fixing component. The side of the fixing component away from the mounting pipe 1 is fixedly connected to one side of the conveying pipe 9.

[0027] It should be noted that the conveying pipe 9 is used to convey and return the coolant, and the refrigeration station body 8 is used to pressurize and cool the coolant, so that the coolant can enter the refrigeration pipe 3 through the conveying pipe 9, and the recovered coolant is cooled again to complete the cycle.

[0028] The fixing assembly includes: a first fixing plate 10, a second fixing plate 11, a plurality of fixing bolts 12 and a plurality of fixing nuts 13. One side of the first fixing plate 10 is fixedly connected to one side of the mounting pipe 1, and one side of the second fixing plate 11 is fixedly connected to one side of the conveying pipe 9. The opposite sides of the first fixing plate 10 and the second fixing plate 11 are fitted together. The plurality of fixing bolts 12 pass through the first fixing plate 10 and the second fixing plate 11. The plurality of fixing nuts 13 are respectively fixedly installed on the outside of the plurality of fixing bolts 12. The diameters of the first fixing plate 10 and the second fixing plate 11 are both larger than one side of the mounting pipe 1 and the conveying pipe 9.

[0029] It should be noted that the diameters of the first fixing plate 10 and the second fixing plate 11 are both larger than one side of the installation pipe 1 and the conveying pipe 9. In use, the conveying pipe 9 can be connected to the installation pipe 1 through the first fixing plate 10 and the second fixing plate 11. After the connection is completed, the device is fixed by multiple fixing bolts 12 and multiple fixing nuts 13, so that the device can be more stable when in use.

[0030] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A freezing device for freezing construction, characterized in that, include: A freezing station and multiple freezing tube bodies, with one side of each freezing tube body fixedly connected to one side of the freezing station; The freezing tube body includes: an installation tube (1), a return tube (2), a freezing tube (3), and a cross-flow head (4). The freezing tube (3) is spirally wrapped around the outside of the return tube (2). Both the freezing tube (3) and the return tube (2) are fixedly installed on the inner side wall of the installation tube (1). A conveying groove (5) is provided on the freezing tube (3), and a return groove (6) is provided on the return tube (2). One side of the cross-flow head (4) is fixedly connected to one side of the freezing tube (3). The side of the cross-flow head (4) away from the freezing tube (3) passes through the return tube (2). The side of the installation tube (1) away from the cross-flow head (4) is fixedly connected to one side of the freezing station. A vacuum groove (7) is provided on the return tube (2).

2. The freezing device for freezing construction according to claim 1, characterized in that, The cross-sections of the freezing tube (3), the reflux tube (2), and the mounting tube (1) are all circular.

3. The freezing device for freezing construction according to claim 2, characterized in that, The outer side wall of the mounting tube (1) is in contact with the inner side wall of the mounting tube (1).

4. The freezing device for freezing construction according to claim 3, characterized in that, The refrigeration station includes: a refrigeration station body (8), a conveying pipe (9) and a fixing component. One side of the refrigeration station body (8) is fixedly connected to one side of the conveying pipe (9). The side of the mounting pipe (1) away from the serial head (4) is fixedly connected to one side of the fixing component. The side of the fixing component away from the mounting pipe (1) is fixedly connected to one side of the conveying pipe (9).

5. The freezing device for freezing construction according to claim 4, characterized in that, The fixing assembly includes: a first fixing plate (10), a second fixing plate (11), a plurality of fixing bolts (12) and a plurality of fixing nuts (13). One side of the first fixing plate (10) is fixedly connected to one side of the mounting tube (1), and one side of the second fixing plate (11) is fixedly connected to one side of the conveying tube (9). The opposite sides of the first fixing plate (10) and the second fixing plate (11) are attached. The plurality of fixing bolts (12) pass through the first fixing plate (10) and the second fixing plate (11), and the plurality of fixing nuts (13) are respectively fixedly installed on the outside of the plurality of fixing bolts (12).

6. The freezing device for freezing construction according to claim 5, characterized in that, The diameters of the first fixing plate (10) and the second fixing plate (11) are both larger than one side of the mounting pipe (1) and the conveying pipe (9).

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