A track-type stacking construction method for ice coils in large ice storage pools

Abstract

The present invention relates to a track-type stacking construction method for ice coils in large ice storage tanks. First, BIM modeling is performed according to the size specifications of the ice storage tank; based on the BIM modeling, the optimal parameter requirements of each equipment for the stacking construction of the ice coils are determined, and the corresponding component processing and installation drawings are generated; after the track beam is constructed, the auxiliary lifting frame is connected to the electric lifting device, and the electric lifting device is connected to the track of the track beam through a T-shaped I-beam pulley; then the ice coil equipment is stacked respectively until the final stacking construction is completed. The present invention can be applied to the standardized large ice storage tank ice storage installation construction process, has high replicability and transplantability, and has industrial production conditions, greatly reduces the risk of damage to the ice coils during transportation and installation, eliminates the problems of improper manual operation and high labor intensity of manual operation as much as possible, and maximizes the construction efficiency. It is most suitable for the stacking of large ice coil equipment in a limited space.

Description

Technical Field

[0001] The invention relates to the technical field of building electromechanical installation, and in particular to a track-type stacking construction method for ice coils in a large ice storage pool. Background Art

[0002] District cooling refers to setting up a centralized cooling station in a building complex to prepare air-conditioning chilled water, and then providing air-conditioning cooling to each building through a circulating water pipe system. The ice storage process system is an energy regulation measure for district cooling to adapt to the "peak and valley electricity price". It is an ice storage energy storage system composed of refrigeration units, pipe systems, ice storage tanks, plate heat exchangers and other equipment. It effectively utilizes the low electricity demand of the power grid at night, stores energy in the ice storage tank through the ice storage process system, and resolves the functional peak load by releasing energy through ice melting during the daytime peak electricity consumption.

[0003] The ice storage technology in the present invention utilizes the low-peak period of nighttime electricity consumption to store the produced cold energy, and then releases the cold energy during the peak period of daytime electricity consumption, melts ice to provide cold, and relieves the tension of electricity supply. Therefore, actively promoting and applying ice storage technology in my country is of great significance for achieving the coordinated development of economy, energy and environment. As a key part of the energy storage system, the ice storage pool is usually designed in a confined space, and a large number of ice storage coils are built in for energy conversion components. The equipment itself has a large mass and needs to be stacked and installed in a confined space. The overall center of gravity is high, and the equipment in the ice pool is densely arranged. The plane space occupancy rate of the equipment is usually not less than 76% of the overall ice pool area. The operating conditions are complex, the construction is difficult, and the danger is high. The traditional ice coil construction method is: the operator uses a crane to stack and connect 3 ice coils in the lifting port area, and then transports them horizontally to place. It is not easy to stack more ice coils. The ice coils are easily overturned when transported horizontally in this way, and there are many lifting points, resulting in great safety risks, low construction efficiency, and poor construction quality. Summary of the invention

[0004] In order to overcome the above-mentioned defects of the prior art, the purpose of the present invention is to provide a track-type stacking construction method for ice coils in a large ice storage pool, which has the advantages of high safety, fast construction speed and high construction quality.

[0005] A track-type stacking construction method for ice coils in a large ice storage pool, the steps are as follows:

[0006] Step 1: First, carry out BIM modeling according to the size specifications of the ice storage pond;

[0007] Step 2: Based on BIM modeling, determine the optimal location and model of the track beam, as well as the size and strength specifications of the fixed steel plate and embedded hooks used to fix the track beam, and the parameter requirements of each equipment for the ice coil stacking construction, and generate the corresponding component processing and installation drawings;

[0008] Step 3: Cast the fixed steel plate and the embedded hook at both ends of the track beam just above the stacking position of the ice coils, and then weld the upper surface of the track to the lower surface of the fixed steel plate to complete the construction of the track beam;

[0009] Step 4: Connect the auxiliary lifting frame required for the processed ice coil tube stacking construction to the lower end of the electric lifting device, and the electric lifting device is connected to the track of the track beam through a T-shaped I-beam pulley;

[0010] Step 5: First fix the ice tray device under the auxiliary lifting frame, lift the first ice tray device through the electric lifting device, then use the forklift to take the auxiliary lifting frame and move it horizontally to the installation position, remove the forklift, and then use the electric lifting device to lower the first ice tray device to the installation position; follow the same steps, move the second ice tray device to the top of the first ice tray device through the electric lifting device and forklift, and then operate the electric lifting device to place the second ice tray device on the first ice tray device for stacking;

[0011] Step 6: The third ice coil device is lifted to a height higher than the second ice coil device by the auxiliary lifting frame and the electric lifting device, and then the T-shaped I-beam pulley is operated to move the third ice coil device horizontally to the top of the second ice coil device, and then the electric lifting device is operated to place the third ice coil device on the second ice coil device for stacking; the same steps are followed to stack other ice coil devices that need to be stacked on the previous ice coil device in sequence until the final stacking construction is completed.

[0012] Furthermore, the fixing steel plate and the embedded hook are fixed by pressure submerged arc welding; the embedded hook is cast in the track beam, and the fixing steel plate is welded to the lower end of the exposed part of the embedded hook.

[0013] Furthermore, lifting hooks are respectively arranged at the four corners of the upper surface of the auxiliary lifting frame; lifting ropes are arranged at the four corners of the lower surface of the auxiliary lifting frame; and hooks are fixedly connected below the lifting ropes.

[0014] Furthermore, the auxiliary lifting frame is connected to the electric lifting device through a steel wire rope passing through a hook.

[0015] Furthermore, the ice coil equipment includes a square pipe rack, an ice storage coil and a support frame; the ice storage coil is arranged between two square pipe racks; at least one group of support frames for supporting the ice storage coil is arranged between the two square pipe racks; a lifting hole is arranged on the side of the square pipe rack; when the ice coil equipment is hoisted by the auxiliary lifting frame, the hook is connected to the lifting hole; after the hoisting is completed, the hook is disconnected from the lifting hole and the next step of hoisting construction is continued.

[0016] Furthermore, the group of support frames are fixed by a connecting plate; the square tube frame and the support frame are both fixed on the base plate.

[0017] Furthermore, the electric lifting device is an electric hoist.

[0018] Furthermore, the track is made of 25b I-beam profile made of Q355B.

[0019] In summary: The construction method of the present invention can be applied to the design, installation and construction of standardized large-scale ice storage pools and ice storage process systems. Its standardized construction method is highly reproducible and portable and has the conditions for industrialized production. At the same time, this construction method greatly reduces the risk of damage to ice coils during transportation and installation, and reduces the risk of economic and construction period compensation. During the construction process, the mechanized construction method is used to eliminate the safety risks caused by improper manual operation as much as possible, reduce the labor intensity of manual operation, greatly reduce safety risks, and maximize the construction efficiency. It effectively solves the technical problems of installation and stacking of large ice coil equipment in limited space, leading the industry change. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the construction method of the present invention;

[0021] Figure 2 This is a schematic diagram of the structure of the present invention during stacking construction;

[0022] Figure 3 This is a schematic diagram of the structure of the fixed steel plate and the embedded hook of the present invention;

[0023] Figure 4 This is a schematic diagram of the connection structure between the T-shaped I-beam pulley and the track beam of the present invention;

[0024] Figure 5 This is a schematic diagram of the auxiliary lifting frame structure of the present invention;

[0025] Figure 6 This is a schematic diagram of the structure of the ice coil device of the present invention;

[0026] Figure 7 This is a schematic diagram of the ice coil stacking construction structure.

[0027] Among them: track beam 1; T-shaped I-beam pulley 2; electric lifting device 3; wire rope 4; auxiliary lifting frame 5; ice coil equipment 6; fixed steel plate 11; embedded hook 12; lifting hook 51; lifting rope 52; hook 53; square pipe rack 61; lifting hole 62; ice storage coil 63; support frame 64; connecting plate 65; base plate 66. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0029] Example

[0030] like Figures 1 to 7 As shown, a track-type stacking construction method for ice coils in a large ice storage tank, the steps are as follows:

[0031] Step 1: First, carry out BIM modeling according to the size specifications of the ice storage pond;

[0032] Step 2: According to BIM modeling, determine the optimal position and model of the track beam 1, as well as the size and strength specifications of the fixed steel plate 11 and the embedded hook 12 fixed to the track beam 1, and the parameter requirements of each equipment for the ice coil stacking construction, and generate the corresponding component processing and installation drawings;

[0033] Step 3: Cast the fixed steel plate 11 and the embedded hook 12 at both ends of the track beam 1 just above the stacking position of the ice tray tube, and then weld the upper surface of the track to the lower surface of the fixed steel plate 11 to complete the construction of the track beam 1;

[0034] Step 4: Connect the auxiliary lifting frame 5 required for the stacking construction of the processed ice coil tube to the lower end of the electric lifting device 3, and the electric lifting device 3 is connected to the track of the track beam 1 through the T-shaped I-beam pulley 2;

[0035] Step 5: first fix the ice tray device 6 to the bottom of the auxiliary lifting frame 5, lift the first ice tray device 6 by the electric lifting device 3, then use a forklift to take the auxiliary lifting frame 5 and move it horizontally to the installation position, remove the forklift, and then use the electric lifting device 3 to lower the first ice tray device 6 to the installation position; in the same way, move the second ice tray device 6 to the top of the first ice tray device 6 by the electric lifting device 3 and the forklift, and then operate the electric lifting device 3 to place the second ice tray device 6 on the first ice tray device 6 for stacking;

[0036] Step six: The third ice-coil device 6 is lifted to a height higher than the second ice-coil device 6 by the auxiliary lifting frame 5 and the electric lifting device 3, and then the T-shaped I-beam pulley 2 is operated to move the third ice-coil device 6 horizontally to the top of the second ice-coil device 6, and then the electric lifting device 3 is operated to place the third ice-coil device 6 on the second ice-coil device 6 for stacking; the same steps are followed to stack other ice-coil devices 6 that need to be stacked on the previous ice-coil device 6 in sequence until the final stacking construction is completed. The present invention provides the most reasonable, safe and efficient construction drawings and construction and installation schemes through BIM modeling. During the installation stage, an auxiliary lifting frame 3 is manufactured to cooperate with the electric lifting device 3 to realize the horizontal transportation of the ice coil equipment 6 by a ground forklift, and the track beam 1, the T-shaped I-beam pulley 2 and the electric lifting device 3 are combined to realize the track-type stacking of the ice coil equipment. After the ice coil equipment 6 enters the ice storage tank from the lifting hole through the crane, it is horizontally transported by the auxiliary lifting frame 3 and the forklift. After arriving at the installation position, it is stacked in sequence by the forklift, the track beam 1, the T-shaped I-beam pulley 2, and the electric lifting device 3 to achieve landing. The construction efficiency is high and the quality is good, which greatly reduces the safety risks and damage caused by bumps and collisions, and overcomes the technical difficulties of installing and stacking large ice coil equipment 6 in a limited space.

[0037] As a preferred embodiment, Figure 2 As shown, the fixing steel plate 11 and the embedded hook 12 are welded and fixed by pressure submerged arc welding to ensure the bearing strength; the embedded hook 12 is cast in the track beam 1, and the fixing steel plate 11 is welded to the lower end of the exposed part of the embedded hook 12.

[0038] As a preferred embodiment, Figure 5 As shown, the four corners of the upper surface of the auxiliary lifting frame 5 are respectively provided with lifting hooks 51; the four corners of the lower surface of the auxiliary lifting frame 5 are provided with lifting ropes 52; and the lower side of the lifting ropes 52 is fixedly connected with a hook 53. The auxiliary lifting frame 5 is connected to the electric lifting device 3 through the steel wire 4 passing through the lifting hook 51. The ice coil equipment 6 is lifted by the electric lifting device 3, the auxiliary lifting frame 5, and the steel wire 4.

[0039] As a preferred embodiment, Figure 6As shown, the ice coil device 6 includes a square tube rack 61, an ice storage coil 63 and a support frame 64; the ice storage coil 63 is arranged between two square tube racks 61; at least one group of support frames 64 for supporting the ice storage coil 63 is arranged between the two square tube racks 61; the side of the square tube rack 61 is provided with a hanging hole 62; when the ice coil device 6 is hoisted by the auxiliary lifting frame 5, the hook 53 is connected to the hanging hole 62; after the hoisting is completed, the hook 53 is disconnected from the hanging hole 62, and the next hoisting construction is continued. The ice coil device 6 is connected to the hook 53 of the top auxiliary lifting frame 5 through the hanging holes 62 arranged at the four corners, and this structural setting ensures the flatness of stacking.

[0040] As a preferred embodiment, the group of support frames 64 are fixed by connecting plates 65; the square pipe frame 61 and the support frame 64 are both fixed on the base plate 66 to ensure the structural stability of the ice coil device 6.

[0041] As a preferred embodiment, the electric lifting device 3 is an electric hoist.

[0042] As a preferred embodiment, the track adopts 25b I-beam profile made of Q355B. Through force calculation, 25b I-beam made of Q355B is finally selected, which meets the strength requirements and is economical without causing unnecessary waste of raw materials.

[0043] Application Examples

[0044] like Figures 1 to 7As shown, through this method, in the early stage of preparation, the integrated design of the ice storage pool, the determination of the BIM model, and the determination of the relevant pre-embedded drawings need to be completed according to the actual requirements, including the establishment of an integrated design model of the ice storage pool based on the actual size, the determination of the installation position of the ice coil equipment 6 and the accurate positioning of the pre-embedded hook 12, etc., to ensure accurate guidance of the construction, combined with the innovative pre-embedded hook 12 and fixed steel plate 11 technology, to achieve accurate pre-embedded and cost control in the main construction stage, and greatly reduce the safety risk; at the same time, avoid the use of post-embedded reinforcement and expansion bolts in the later construction process, effectively improve the construction efficiency of the ice coil equipment in the installation and stacking of the ice coil equipment 6, greatly reduce labor costs, and reduce labor intensity. Moreover, this method of horizontally transporting a single ice coil equipment 6 first and then stacking the ice coil equipment 6 avoids the risk of easy overturning of the ice coil equipment 6 after horizontal transportation after three stacked, and cancels the practice of post-embedded anchor bolts directly above each group of ice coil equipment 6 as a hanging point, which greatly improves the construction efficiency. This construction method is applied to the construction of the track beam of Qianhai No. 5 cooling station with a span of 8.2 meters, a height of 7.8 meters, and a single ice coil device weighing 3.3t. The effect is very good, and it is more suitable for the installation and stacking of large ice coil devices in limited space. The overall construction structure is stable, which can greatly improve the construction efficiency, greatly reduce labor costs, reduce labor intensity, and complete the reasonable use of limited space. At night, the ice coil device is used to store cold in the ice storage pool, and during the peak of electricity consumption during the day, the peak load of the function is resolved by melting ice and releasing energy, so as to achieve the reasonable use of energy. In the application of Qianhai No. 5 cooling station, preliminary calculations after actual application show that the installation fee of each four ice coil devices 6 can save about 1 million yuan compared with the traditional installation method. If it is applied to the stacking construction of more ice coil devices 6, due to the higher height, the greater the difficulty of traditional construction and the higher the construction cost, the more money can be saved by this construction method.

[0045] Although the specific embodiments of the present invention are described and illustrated in detail above, it should be pointed out that: we can make various equivalent changes and modifications to the above embodiments based on the concept of the present invention, and the functional effects produced by them still do not exceed the spirit covered by the specification, and they should all be within the scope of protection of the present invention.

Claims

1. A track-type stacking construction method for ice coils in a large ice storage pool, characterized in that: Here are the steps: Step 1: First, carry out BIM modeling according to the size specifications of the ice storage pond; Step 2: Based on BIM modeling, determine the optimal location and model of the track beam, as well as the size and strength specifications of the fixed steel plate and embedded hooks used to fix the track beam, and the parameter requirements of each equipment for the ice coil stacking construction, and generate the corresponding component processing and installation drawings; Step 3: Cast the fixed steel plate and the embedded hook at both ends of the track beam just above the stacking position of the ice coils, and then weld the upper surface of the track to the lower surface of the fixed steel plate to complete the construction of the track beam; Step 4: Connect the auxiliary lifting frame required for the processed ice coil tube stacking construction to the lower end of the electric lifting device, and the electric lifting device is connected to the track of the track beam through a T-shaped I-beam pulley; Step 5: First fix the ice tray device under the auxiliary lifting frame, lift the first ice tray device through the electric lifting device, then use the forklift to take the auxiliary lifting frame and move it horizontally to the installation position, remove the forklift, and then use the electric lifting device to lower the first ice tray device to the installation position; follow the same steps, move the second ice tray device to the top of the first ice tray device through the electric lifting device and forklift, and then operate the electric lifting device to place the second ice tray device on the first ice tray device for stacking; Step 6: The third ice coil device is lifted to a height higher than the second ice coil device by the auxiliary lifting frame and the electric lifting device, and then the T-shaped I-beam pulley is operated to move the third ice coil device horizontally to the top of the second ice coil device, and then the electric lifting device is operated to place the third ice coil device on the second ice coil device for stacking; the same steps are followed to stack other ice coil devices that need to be stacked on the previous ice coil device in sequence until the final stacking construction is completed.

2. A track-type stacking construction method for ice coils in a large ice storage pool according to claim 1, characterized in that: The fixed steel plate and the embedded hook are welded and fixed by pressure submerged arc welding; the embedded hook is cast in the track beam, and the fixed steel plate is welded to the lower end of the exposed part of the embedded hook.

3. The track-type stacking construction method for ice coils in a large ice storage pool according to claim 1, characterized in that: Lifting hooks are respectively arranged at the four corners of the upper surface of the auxiliary lifting frame; lifting ropes are arranged at the four corners of the lower surface of the auxiliary lifting frame; and hooks are fixedly connected under the lifting ropes.

4. A track-type stacking construction method for ice coils in a large ice storage pool according to claim 3, characterized in that: The auxiliary lifting frame is connected to the electric lifting device through a steel wire rope passing through a hook.

5. The track-type stacking construction method for ice coils in a large ice storage pool according to claim 3, characterized in that: The ice coil equipment includes a square pipe rack, an ice storage coil and a support frame; the ice storage coil is arranged between two square pipe racks; at least one group of support frames for supporting the ice storage coil is arranged between the two square pipe racks; a lifting hole is arranged on the side of the square pipe rack; when the ice coil equipment is hoisted by the auxiliary lifting frame, the hook is connected to the lifting hole; after the hoisting is completed, the hook is disconnected from the lifting hole and the next step of hoisting construction is continued.

6. A track-type stacking construction method for ice coils in a large ice storage pool according to claim 5, characterized in that: A group of support frames are fixed together by connecting plates; the square tube frame and the support frames are both fixed on the base plate.

7. A track-type stacking construction method for ice coils in a large ice storage pool according to claim 1, characterized in that: The electric lifting device is an electric hoist.

8. The track-type stacking construction method for ice coils in a large ice storage pool according to claim 1, characterized in that: The track is made of 25b I-beam profile made of Q355B.

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