Construction method for air conditioner water pipe transportation and installation

Abstract

A construction method for air conditioner water pipe transportation and installation comprises the steps that portal rigid frames are arranged and installed, the portal rigid frames are fixed to the upper ends of concrete structural columns through embedded steel bars, rolling devices are installed at the same positions of steel frame cross beams of all the portal rigid frames, a truck crane is adopted to hoist a first water pipe to the rolling devices, and the first water pipe is fixed to the rolling devices; the safety hoops are installed on the portal rigid frame at the water pipe hoisting position and the in-place position, and the water pipe is pushed manually and forcibly, so that the water pipe is horizontally moved to the portal rigid frame at the in-place position along the rolling device. According to the construction method, the gate-type rigid frame is erected on the concrete stand columns in a steel bar planting mode, the problem that the roof bearing capacity is insufficient is solved, the roller devices are arranged on the cross beams of the gate-type rigid frame to transport the water pipes, water pipe transportation is facilitated, time and labor are saved, manual labor input is greatly reduced, and water pipe transportation efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of air-conditioning water pipes, and in particular to a construction method for transporting and installing air-conditioning water pipes. Background Art

[0002] After a long period of operation, the central air-conditioning system of an industrial building structure will experience aging, low efficiency, and high energy consumption, and needs to be updated and renovated. When the central air-conditioning system in an industrial building is renovated, the air-conditioning cooling water pipes, chilled water pipes and other water pipes are arranged on the roof. The traditional air-conditioning water pipe installation and construction process is mainly to set up pipe brackets on the roof and use the pipe brackets to install the air-conditioning water pipes. Due to the limited bearing capacity of the roof design of the old building structure, it is difficult to set up the pipe brackets. The roof area is large, and when renovating the air-conditioning water pipes, it is impossible to use a crane to lift the air-conditioning water pipes onto the brackets. In addition, there are many existing roof process pipes in industrial buildings, which will affect the layout, installation and transportation of the air-conditioning water pipes. The traditional air-conditioning water pipe layout and installation and transportation process has the following shortcomings:

[0003] 1) Installing air-conditioning water pipes on the existing industrial pipes on the roof, resulting in a messy layout of the air-conditioning water pipes;

[0004] 2) Using pipe brackets to directly support the small-section roof beams or roof panels can easily cause local deformation of the roof that exceeds the standard requirements, or even cause local damage to the roof and leakage;

[0005] 3) The pipe bracket is directly supported on the small-section roof beam or roof panel. In addition, the large roof area makes it difficult to transport the air-conditioning water pipe horizontally and lift it into place on the roof. The labor required is large, the strength is high, and the efficiency of water pipe transportation and lifting is low. Summary of the invention

[0006] In view of this, in order to solve the technical problems existing in the prior art, the present invention provides a construction method which adopts the method of embedding reinforcement to erect a portal frame on a concrete column, solves the problem of insufficient roof bearing capacity, and arranges a roller device on the steel frame beam of the portal frame to transport water pipes, thereby avoiding interference from existing industrial pipelines on the roof of the building structure, reducing manual labor input, and improving the efficiency of water pipe transportation.

[0007] The present invention solves the above technical problems through the following technical solutions:

[0008] A construction method for transporting and installing air conditioning water pipes, the construction method comprising the following construction processes:

[0009] Step 1) Arrangement and installation of portal frame: The portal frame is arranged on the concrete structural column of the building structure, and the portal frame is fixed to the upper end of the concrete structural column by embedding reinforcement;

[0010] Step 2) Installation of rolling device: A rolling device is installed at the same position of the steel frame crossbeam of all portal frames;

[0011] Step 3) Hoisting and transportation of water pipes: Use a truck crane to hoist the first water pipe onto the rolling device, install safety hoops on the portal frames at all water pipe hoisting positions and in-position positions, manually push the first water pipe to move it horizontally along the rolling device to the portal frame at the in-position position, remove the safety hoop at the in-position position, roll the first water pipe to the side of the portal frame, install the safety hoop at the in-position position, remove the safety hoop at the hoisting position, hoist the second water pipe, and in the above order, hoist the four water pipes that need to be in the same in-position position on the portal frame in turn.

[0012] As a further improvement to the above technical solution, in step 1), the portal frame includes two groups of steel columns, steel frame beams, and oblique supports. The two groups of steel columns are symmetrically arranged, and both ends of the steel frame beams are fixed to the top ends of the two groups of symmetrically arranged steel columns by fixing components to form a portal frame. The oblique supports are fixed in an inclined manner between each group of steel columns and the steel frame beams by fixing components, and the bottoms of the two groups of steel columns are connected to the concrete structure columns by embedded reinforcement.

[0013] As a further improvement to the above technical solution, the arrangement and installation of the portal frame in step 1) includes:

[0014] Step 11) The portal frames arranged include high portal frames and low portal frames, so as to avoid interference between the height of the portal frames and the original industrial pipelines of the building structure;

[0015] Step 12) The high portal frame and the low portal frame are respectively fixed on the concrete structural columns at the axis of the building structure, and the distance between two adjacent concrete structural columns is 6 meters.

[0016] As a further improvement to the above technical solution, the rolling device in step 2) includes two sets of bearing fixing seats, a rotating shaft, a steel pipe sleeve, and a steel plate. The two sets of bearing fixing seats are symmetrically distributed on the left and right. The steel pipe sleeve is coaxially sleeved on the outside of the rotating shaft and fixed to the rotating shaft. The two ends of the rotating shaft are fixedly connected to the two sets of bearing fixing seats through steel plates.

[0017] As a further improvement to the above technical solution, the hoisting and transportation of the water pipe in step 3) specifically further includes:

[0018] Step 31) Transportation of water pipes between the low portal frame and the high portal frame: when the height of the high portal frame is higher than the portal frame at the hoisting position, the water pipes need to be transported horizontally from the low portal frame to the high portal frame, and the small ∏ frame is installed at the transportation position of the low portal frame with the highest portal frame as the standard, and the rolling device at the low portal frame is installed on the small ∏ frame, and the rolling device is installed on the steel frame crossbeam of the high portal frame, and the water pipes of the rolling device on the small ∏ frame are manually pushed to transport the water pipes on the low portal frame to the rolling device on the high portal frame, and then the rolling device and the small ∏ frame on the small ∏ frame are removed, and the removed rolling device is installed back to the steel frame crossbeam of the low portal frame;

[0019] Step 32) Transport water pipes from high portal frame to low portal frame: Taking the highest portal frame as the standard, install a small ∏ frame at the transport position of the low portal frame, install the rolling device at the low portal frame onto the small ∏ frame, install the rolling device on the steel frame crossbeam of the high portal frame, and manually push the water pipes on the rolling device on the high portal frame to transport the water pipes on the high portal frame to the small ∏ frame of the low portal frame.

[0020] As a further improvement to the above technical solution, the small ∏ frame includes two groups of small columns and small steel beams. The two groups of small columns are symmetrically arranged. The small steel beam is located between the two groups of small columns. The two ends of the small steel beam are respectively connected to the top ends of the two groups of small columns. The small ∏ frame is fixed to the portal frame by bolts.

[0021] As a further improvement to the above technical solution, the transport of water pipes from the high portal frame to the low portal frame in step 32) further includes: transporting the water pipes on the low portal frame from the small portal frame to the steel frame beam of the low portal frame, and the specific transportation process is as follows:

[0022] Step 321) fix a side steel column at the far end of the small frame;

[0023] Step 322) A hand chain hoist is installed on the side steel column, and the hand chain hoist is connected to a sling, one end of the sling is connected to the manual hoist, and the other end of the sling is fixed to the small steel beam of the small frame;

[0024] Step 323) When the water pipes on the small ∏-type frame on the low-door steel frame are transported to the right place, the safety hoop is first removed, and then the first water pipe is manually pushed by human force to roll the first water pipe horizontally onto the sling;

[0025] Step 324) Release the hand chain hoist, and the first water pipe is slowly lowered to the steel frame beam of the low portal frame by gravity, and the first water pipe is horizontally rolled to the side of the steel frame beam;

[0026] Step 325) According to the above steps, lower the second water pipe from the small ∏-type frame at the high position of the low portal frame to the steel frame beam of the low portal frame.

[0027] As a further improvement to the above technical solution, the safety hoop in step 3) is bent into a U-shape by flat steel, the U-shaped open end of the safety hoop covers both sides of the roller device, and the safety hoop is fixed with connecting bolts.

[0028] Compared with the prior art, the technical solution of the present invention has at least the following beneficial effects:

[0029] (1) The construction method of the present invention includes the arrangement and installation of a portal frame, wherein the portal frame is fixed to the upper end of a concrete structural column by anchoring, a rolling device is installed at the same position of the steel frame crossbeam of all portal frames, a car crane is used to hoist the first water pipe onto the rolling device, a safety hoop is installed on the portal frame at the water pipe hoisting position and the position in which it is in place, and the water pipe is pushed manually to move horizontally along the rolling device to the portal frame at the position in which it is in place. The construction of the present invention uses anchoring to place the portal frame on the concrete column to solve the problem of insufficient roof bearing capacity, and a roller device is set on the portal frame crossbeam to transport the water pipe, which can avoid interference from existing roof industrial pipelines of the building structure, and also facilitates the transportation of the water pipe, saving time and effort, greatly reducing the input of manual labor, and improving the efficiency of water pipe transportation.

[0030] (2) The portal frame of the present invention comprises two groups of steel columns, steel frame beams, and oblique supports. The two groups of steel columns are symmetrically arranged. The two ends of the steel frame beams are fixed to the tops of the two groups of symmetrically arranged steel columns by fixing members to form a portal frame. The oblique supports are fixed between each group of steel columns and the steel frame beams in an inclined manner by fixing members. The portal frame of the present invention is provided with oblique supports to improve the seismic performance of the portal frame, and also to reduce the cross-sectional material of the steel frame beams.

[0031] The above description is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present invention more obvious and easy to understand, the following is a detailed description in combination with the preferred embodiments and the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a schematic diagram of the process of the construction method of the present invention;

[0033] Figure 2 It is a schematic elevation diagram of the installation of the air conditioning water pipe of the present invention;

[0034] Figure 3 It is a schematic elevation diagram of the first water pipe of the present invention being hoisted onto a portal frame;

[0035] Figure 4 It is a schematic elevation view of the first water pipe of the present invention being installed in place;

[0036] Figure 5 It is a schematic elevation diagram of the second water pipe of the present invention being transported to the portal frame at the installation location;

[0037] Figure 6 It is a schematic elevation view of the second water pipe of the present invention being installed in place;

[0038] Figure 7 This is a schematic elevation diagram of four water pipes installed in place according to the present invention;

[0039] Figure 8 A large-scale drawing of the rolling device of the present invention;

[0040] Fig. 9 It is a schematic elevation diagram of adding a small portal frame to the low portal frame of the present invention;

[0041] Fig.10 It is a schematic diagram of the relationship between the rolling device of the present invention and the small ∏-type frame;

[0042] Fig.11 It is a schematic elevation diagram of the first steel pipe of the present invention being horizontally transported from a high portal frame to a low portal frame;

[0043] Fig.12 It is a schematic elevation view of the first steel pipe of the present invention rolling from a small ∏-type frame to a lifting belt;

[0044] Fig.13 It is a schematic elevation view of the first steel pipe of the present invention falling onto the steel frame crossbeam of the low portal steel frame;

[0045] Fig.14 It is a schematic elevation view of the first steel pipe of the present invention being rolled aside;

[0046] Fig.15 It is a schematic elevation view of the second steel pipe falling onto the steel frame crossbeam of the present invention;

[0047] Fig.16 It is a schematic elevation diagram of the horizontal transportation of four steel pipes from a small ∏-type frame to a low portal frame according to the present invention.

[0048] In the figure: concrete structure column 1, portal frame 2, steel column 21, steel frame beam 22, oblique support 23, water pipe 3, first water pipe 31, second water pipe 32, rolling device 4, bearing fixing seat 41, rotating shaft 42, steel pipe sleeve 43, safety hoop 5, connecting bolt 51, small ∏ frame 6, small column 61, small steel beam 62, side steel column 7, hand chain hoist 8, sling 9. DETAILED DESCRIPTION

[0049] The present invention is described in detail below in conjunction with the accompanying drawings, which are part of this specification and illustrate the principles of the present invention through embodiments. Other aspects, features and advantages of the present invention will become clear from the detailed description. In the drawings referred to, the same or similar parts in different figures are represented by the same reference numerals.

[0050] like Figure 1-16 As shown, the first embodiment of the present invention provides a construction method for transporting and installing an air conditioning water pipe 3, and the construction method includes the following construction process:

[0051] Step 1) Arrangement and installation of portal frame 2: portal frame 2 is arranged on concrete structural column 1 of building structure, and portal frame 2 is fixed to the upper end of concrete structural column 1 by embedded reinforcement. The anchoring method can ensure the stability of portal frame 2 fixation, and at the same time, the load of water pipe 3 on portal frame 2 can be directly transferred from portal frame 2 to concrete structural column 1, which solves the problem of insufficient bearing capacity of traditional bracket fixed on roof;

[0052] Step 2) Installation of the rolling device 4: The rolling device 4 is installed at the same position of the steel frame cross beam 22 of all the portal frames 2. By arranging the rolling device 4 on the steel frame cross beam 22 of the portal frame 2, the water pipe 3 can be transported horizontally. Moreover, the friction of the rollers is very small when the rolling device 4 is used to transport the water pipe 3, which is convenient for transporting the water pipe 3 and saves time and effort.

[0053] Step 3) Hoisting and transportation of the water pipe 3: Use a truck crane to hoist the first water pipe 31 onto the rolling device 4, install the safety hoop 5 on the portal frame 2 at all the hoisting positions and the in-position positions of the water pipes 3, push the first water pipe 31 manually to move it horizontally along the rolling device 4 to the portal frame 2 at the in-position position, remove the safety hoop 5 at the in-position position, roll the first water pipe 31 to the side of the portal frame 2, install the safety hoop 5 at the in-position position, remove the safety hoop 5 at the hoisting position, hoist the second water pipe 32, and hoist the four water pipes 3 that need to be in the same in-position position on the portal frame 2 in sequence according to the above sequence.

[0054] In specific implementation, the length of the water pipe 3 hoisted and transported by the present invention is not less than 13m; if the length of the water pipe 3 is less than 12m, when the water pipe 3 moves horizontally, it is only supported by one rolling device 4, and the water pipe 3 cannot be transported on the portal frame 2. The water pipe 3 is not less than 13m, and when both ends of the water pipe 3 are placed on the rolling device 4, the safe placement length of the water pipe 3 can be not less than 0.5m.

[0055] When the embodiment of the present invention is implemented, in step 1), the portal frame 2 includes two groups of steel columns 21, steel frame beams 22, and oblique supports 23. The two groups of steel columns 21 are symmetrically arranged, and the two ends of the steel frame beams 22 are fixed to the tops of the two groups of symmetrically arranged steel columns 21 by fixing components to form a portal frame. The oblique supports 23 are fixed between each group of steel columns 21 and the steel frame beams 22 in an inclined manner through fixing components, and the bottoms of the two groups of steel columns 21 are connected to the concrete structure columns 1 through embedded steel bars. The portal frame 2 is connected to the existing concrete structure columns 1 without loss by embedded steel bars, avoiding the construction error problem of embedded parts. The oblique supports 23 can improve the seismic performance of the portal frame, and can also reduce the cross-sectional material of the steel frame beams 22. Each set of steel columns 21 is made of HN250×125×6×9 hot-rolled H-shaped steel, the steel frame beam 22 is made of HN250×125×6×9 steel, and the steel frame beam 22 is connected to the flange of the steel column 21 by a fixing member, and the fixing member is made of high-strength bolts;

[0056] When the present invention is specifically implemented, the arrangement and installation of the portal frame 2 in step 1) includes:

[0057] Step 11) The portal frames 2 arranged include high portal frames and low portal frames, so as to avoid interference between the height of the portal frames 2 and the original industrial pipelines of the building structure;

[0058] Step 12) The building structure is provided with a longitudinal axis and a transverse axis, the axis being the intersection of the longitudinal axis and the transverse axis of the building, a concrete structural column 1 is cast at the intersection of the longitudinal axis and the transverse axis, and the high portal frame and the low portal frame are respectively fixed on the concrete structural column 1 at all the axis of the building structure, and the distance between two adjacent concrete structural columns is 6 meters.

[0059] In specific implementation, the rolling device 4 installed by the present invention includes two sets of bearing fixing seats 41, a rotating shaft 42, a steel pipe sleeve 43, and a steel plate. The two sets of bearing fixing seats 41 are symmetrically distributed on the left and right. The steel pipe sleeve 43 is coaxially sleeved on the outside of the rotating shaft 42 and fixed to the rotating shaft 42. The two ends of the rotating shaft 42 are fixedly connected to the two sets of bearing fixing seats 41 through steel plates. The two sets of bearing fixing seats 41 are fixed to the portal frame 2 by bolts.

[0060] When the present invention is implemented specifically, the hoisting and transportation of the water pipe 3 in step 3) specifically includes:

[0061] Step 31) Transportation of water pipes 3 between low portal frame and high portal frame: when the height of high portal frame is higher than portal frame 2 at hoisting position, water pipes 3 need to be transported horizontally from low portal frame to high portal frame, and small ∏ frame 6 is installed at the transportation position of low portal frame with the highest portal frame as standard, and rolling device 4 at low portal frame is installed on small ∏ frame 6, and rolling device 4 is installed on steel frame cross beam 22 of high portal frame, and water pipes 3 of rolling device 4 on small ∏ frame 6 are manually pushed to transport water pipes 3 on low portal frame to rolling device 4 on high portal frame, and rolling device 4 and small ∏ frame 6 on small ∏ frame 6 are removed, and the removed rolling device 4 is installed back on steel frame cross beam 22 of low portal frame;

[0062] Step 32) Transporting water pipe 3 from high portal frame to low portal frame: Taking the highest portal frame as the standard, a small ∏ frame 6 is installed at the transport position of the low portal frame. In specific implementation, the small ∏ frame 6 includes two groups of small columns 61 and a small steel beam 62. The two groups of small columns 61 are symmetrically arranged. The small steel beam 62 is located between the two groups of small columns 61. The two ends of the small steel beam 62 are respectively connected to the top of the two groups of small columns 61. The small columns 61 and the small steel beam 62 are connected to the top of the two groups of small columns 61. The cross-section of beam 62 is HW125x125x6.5x9, the small ∏ frame 6 is fixed to the portal frame 2 by bolt connection, the rolling device 4 at the low portal frame is installed on the small ∏ frame 6, the rolling device 4 is installed on the steel frame crossbeam 22 of the high portal frame, and the water pipe 3 of the rolling device 4 on the high portal frame is manually pushed to transport the water pipe 3 on the high portal frame to the small ∏ frame 6 of the low portal frame.

[0063] In specific implementation, in step 32), transporting the water pipe 3 from the high portal frame to the low portal frame also includes: transporting the water pipe 3 on the low portal frame from the small frame 6 to the steel frame crossbeam 22 of the low portal frame, and the specific transportation process is as follows:

[0064] Step 321) Fix a side steel column 7 at the far end of the small frame 6, and the size of the side steel column 7 is HW125x125x6.5x9;

[0065] Step 322) A hand chain hoist 8 is installed on the side steel column 7, and the hand chain hoist 8 is connected to a sling 9, one end of the sling 9 is connected to the manual hoist, and the other end of the sling 9 is fixed to the small steel beam 62 of the small ∏ frame 6;

[0066] Step 323) When the water pipe 3 of the small ∏-type frame 6 on the low-door steel frame is transported to the right place, the safety hoop 5 is first removed, and then the first water pipe 31 is manually pushed by human force so that the first water pipe 31 rolls horizontally onto the sling 9;

[0067] Step 324) Release the hand chain hoist 8, and the first water pipe 31 slowly descends to the steel frame beam 22 of the low portal frame by its own gravity, and rolls the first water pipe 31 horizontally to the side of the steel frame beam 22.

[0068] Step 325) According to the above steps, the second water pipe 32 is lowered from the small ∏-type frame 6 at the height of the low portal frame to the steel frame crossbeam 22 of the low portal frame.

[0069] There are three safety hoops 5 installed at the hoisting position described in step 3), and the three are spaced apart from each other. To ensure that the water pipe 3 does not slide sideways during transportation, the safety hoop 5 is bent into a U-shape using flat steel, and the U-shaped open end of the safety hoop 5 covers both sides of the roller device, and the safety hoop 5 is fixed using connecting bolts 51. In specific implementation, the safety hoop 5 can be made of Q235 carbon steel, 5mm thick, 50mm wide flat steel, bent into a U-shaped structure with an inner diameter 10-20mm larger than the water pipe 3, and the connecting bolts 51 are M12 stainless steel bolts with matching locking nuts.

[0070] The specific operation process of the construction method of the present invention for installing the water pipe 3 of the central air conditioning system of the industrial building structure is as follows:

[0071] Two routes of four 3DN400 chilled water pipes are installed on the roofs of plant 1 and plant 2, with a length of about 160m. Other industrial pipelines are arranged on the roofs. The distance between the concrete columns of plant 1 and plant 2 is 6m. The four 3DN400 chilled water pipes are arranged in a row, and the hoisting conditions of the four 3DN400 chilled water pipes need to be considered. The truck crane can directly hoist the water pipe 3 onto the portal frame 2 from the ground. If the truck crane is hoisted in the middle of the drainage pipe 3, the water pipe 3 is installed from both ends to the middle; if the truck crane is hoisted at the end of the drainage pipe 3, it is installed from the end away from the hoisting position to the hoisting position;

[0072] The portal frame 2 is set on the adjacent concrete structure column 1 and fixed with embedded reinforcement. The steel frame beam 22 and steel column 21 of the portal frame 2 are made of HN250×125×6×9, and the diagonal support 23 is made of HW100×100×6×8. High-strength bolts are used to connect the steel frame beam 22, steel column 21 and diagonal support 23. A portal frame 2 is set on each axis, and the distance between two adjacent portal frames 2 is 6m. The net height of the portal frame 2 from the roof is greater than 1.8m, which is convenient for later operation and maintenance.

[0073] The rolling device 4 is installed at the same position of the steel frame cross beam 22 of all the portal frames 2. The rolling device 4 is fixed to the steel beam of the portal frame 2 with bolts. The safety hoop 5 is fixed to the steel frame cross beam 22 of the portal frame 2 with bolts. Except for the hoisting position, the safety hoop 5 needs to be installed before the water pipe 3 is hoisted at other positions on the portal frame 2.

[0074] The first water pipe 31 is hoisted onto the rolling device 4, and then the three safety hoops 5 at the hoisting position are installed. The first water pipe 31 is pushed by manpower to the portal frame 2 where it is located when it is in place; the safety hoop 5 at the in-place position is removed, and the first water pipe 31 is rolled aside by manpower;

[0075] Install the safety hoop 5 at the position, remove the safety hoop 5 at the hoisting position, and hoist the second water pipe 32; hoist the four water pipes 3 at the same position in the above order, and install the other water pipes 3 from far to near in the above order.

[0076] When part of the gantry frame 2 is higher than the gantry frame 2 at the hoisting position, it is necessary to transport the water pipe 3 horizontally from the low gantry frame to the high gantry frame. Taking the highest gantry frame as the standard, a small ∏ frame 6 is added to the transportation position of the low gantry frame. The small ∏ frame 6 is fixed to the steel frame crossbeam 22 of the low gantry frame by bolt connection. The rolling device 4 at the low gantry frame is installed on the small steel beam 62 of the small ∏ frame 6. In addition, the rolling device 4 is installed on the steel frame crossbeam 22 of the high gantry frame. After the water pipe 3 on the high gantry frame is transported to the right place, the small ∏ frame 6 and the rolling device 4 on the small ∏ frame 6 are removed, and then the rolling device 4 is installed back on the steel frame crossbeam 22 of the low gantry frame, and then the water pipe 3 of the low gantry frame is transported.

[0077] When the water pipe 3 is to be transported horizontally from the high portal frame to the low portal frame, the highest frame is taken as the standard, a small ∏ frame 6 is added to the transport position of the low frame, the rolling device 4 at the low portal frame is installed on the small steel beam 62 of the small ∏ frame 6, and the rolling device 4 at the low portal frame is installed on the small steel beam 62 of the small ∏ frame 6. The water pipe 3 on the low portal frame is transported to the position first, and then the water pipe 3 on the high portal frame is transported.

[0078] When the water pipe 3 on the low portal frame needs to be lowered from the small ∏ frame 6 to the steel frame crossbeam 22 of the low portal frame, a side steel column 7 is fixed at the far end from the small ∏ frame 6, and a hand chain hoist 8 is fixed on the side steel column 7, and the hand chain hoist 8 is connected to a sling 9, and the other end of the sling 9 is connected to the small steel beam 62 of the small ∏ frame 6. When all the water pipes 3 on the small ∏ frame 6 are transported to the right place, the safety hoop 5 is first removed; then the first water pipe 31 is horizontally rolled onto the sling 9 by manpower; the hand chain hoist 8 is loosened, and the first water pipe 31 is slowly lowered to the steel frame crossbeam 22 of the low portal frame by gravity, and the first water pipe 31 is horizontally rolled to the side of the low portal frame, and the second water pipe 32 is lowered from the high small ∏ frame 6 to the steel frame crossbeam 22 of the low portal frame according to the above method.

[0079] The above is a preferred embodiment of the present invention. It should be pointed out that a person skilled in the art can make several improvements and modifications without departing from the principle of the present invention. These improvements and modifications are also considered to be within the scope of protection of the present invention.

Claims

1. A construction method for transporting and installing air conditioning water pipes, characterized in that: The construction method includes the following construction process: Step 1) Arrangement and installation of portal frame: The portal frame is arranged on the concrete structural column of the building structure, and the portal frame is fixed to the upper end of the concrete structural column by embedding reinforcement; Step 2) Installation of rolling device: A rolling device is installed at the same position of the steel frame crossbeam of all portal frames; Step 3) Hoisting and transportation of water pipes: Use a truck crane to hoist the first water pipe onto the rolling device, install safety hoops on the portal frames at all water pipe hoisting positions and in-position positions, manually push the first water pipe to move it horizontally along the rolling device to the portal frame at the in-position position, remove the safety hoop at the in-position position, roll the first water pipe to the side of the portal frame, install the safety hoop at the in-position position, remove the safety hoop at the hoisting position, hoist the second water pipe, and in the above order, hoist the four water pipes that need to be in the same in-position position on the portal frame in turn.

2. The construction method for transporting and installing air conditioning water pipes according to claim 1, characterized in that: In step 1), the portal frame includes two groups of steel columns, steel frame beams, and oblique supports. The two groups of steel columns are symmetrically arranged, and both ends of the steel frame beams are fixed to the top ends of the two groups of symmetrically arranged steel columns by fixing components to form a portal frame. The oblique supports are fixed in an inclined manner between each group of steel columns and the steel frame beams by fixing components, and the bottoms of the two groups of steel columns are connected to the concrete structure columns by embedded reinforcement.

3. The construction method for transporting and installing air conditioning water pipes according to claim 1, characterized in that: The arrangement and installation of the portal frame in step 1) includes: Step 11) The portal frames arranged include high portal frames and low portal frames, so as to avoid interference between the height of the portal frames and the original industrial pipelines of the building structure; Step 12) The high portal frame and the low portal frame are respectively fixed on the concrete structural columns at the axis of the building structure, and the distance between two adjacent concrete structural columns is 6 meters.

4. The construction method for transporting and installing air conditioning water pipes according to claim 1, characterized in that: The rolling device described in step 2) includes two sets of bearing fixing seats, a rotating shaft, a steel pipe sleeve, and a steel plate. The two sets of bearing fixing seats are symmetrically distributed on the left and right. The steel pipe sleeve is coaxially sleeved on the outside of the rotating shaft and fixed to the rotating shaft. The two ends of the rotating shaft are fixedly connected to the two sets of bearing fixing seats through steel plates.

5. The construction method for transporting and installing air conditioning water pipes according to claim 1, characterized in that: The hoisting and transportation of the water pipe in step 3) specifically includes: Step 31) Transportation of water pipes between the low portal frame and the high portal frame: when the height of the high portal frame is higher than the portal frame at the hoisting position, the water pipes need to be transported horizontally from the low portal frame to the high portal frame, and the small ∏ frame is installed at the transportation position of the low portal frame with the highest portal frame as the standard, and the rolling device at the low portal frame is installed on the small ∏ frame, and the rolling device is installed on the steel frame crossbeam of the high portal frame, and the water pipes of the rolling device on the small ∏ frame are manually pushed to transport the water pipes on the low portal frame to the rolling device on the high portal frame, and then the rolling device and the small ∏ frame on the small ∏ frame are removed, and the removed rolling device is installed back to the steel frame crossbeam of the low portal frame; Step 32) Transport water pipes from high portal frame to low portal frame: Taking the highest portal frame as the standard, install a small ∏ frame at the transport position of the low portal frame, install the rolling device at the low portal frame onto the small ∏ frame, install the rolling device on the steel frame crossbeam of the high portal frame, and manually push the water pipes on the rolling device on the high portal frame to transport the water pipes on the high portal frame to the small ∏ frame of the low portal frame.

6. The construction method for transporting and installing air conditioning water pipes according to claim 5, characterized in that: The small frame includes two groups of small columns and a small steel beam. The two groups of small columns are symmetrically arranged. The small steel beam is located between the two groups of small columns. The two ends of the small steel beam are respectively connected to the top ends of the two groups of small columns. The small frame is fixed on the portal frame by bolt connection.

7. The construction method for transporting and installing air conditioning water pipes according to claim 5, characterized in that: The transport of water pipes from the high portal frame to the low portal frame in step 32) further includes: transporting the water pipes on the low portal frame from the small portal frame to the steel frame beam of the low portal frame, and the specific transport process is as follows: Step 321) fix a side steel column at the far end of the small frame; Step 322) A hand chain hoist is installed on the side steel column, and the hand chain hoist is connected to a sling, one end of the sling is connected to the manual hoist, and the other end of the sling is fixed to the small steel beam of the small frame; Step 323) When the water pipes on the small ∏-type frame on the low-door steel frame are transported to the right place, the safety hoop is first removed, and then the first water pipe is manually pushed by human force to roll the first water pipe horizontally onto the sling; Step 324) Release the hand chain hoist, and the first water pipe slowly descends to the steel frame beam of the low portal frame by its own gravity, and rolls the first water pipe horizontally to the side of the steel frame beam; Step 325) According to the above steps, lower the second water pipe from the small ∏-type frame at the high position of the low portal frame to the steel frame beam of the low portal frame.

8. The construction method for transporting and installing air conditioning water pipes according to claim 1, characterized in that: The safety hoop described in step 3) is made of flat steel bent into a U-shape, the U-shaped opening end of the safety hoop covers both sides of the roller device, and the safety hoop is fixed with connecting bolts.

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